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authorcoasteen <coasteen@proton.me>2026-07-09 10:42:28 +0330
committercoasteen <coasteen@proton.me>2026-07-09 10:42:28 +0330
commit8cbadb61604667b407b53ee1258433994fa4765a (patch)
tree97765fb29418fd6278fcb4cbb9760893afaf7a58 /st
initHEADmaster
Diffstat (limited to 'st')
-rwxr-xr-xst/LEGACY17
-rwxr-xr-xst/LICENSE34
-rwxr-xr-xst/Makefile52
-rwxr-xr-xst/README34
-rwxr-xr-xst/TODO28
-rwxr-xr-xst/arg.h50
-rwxr-xr-xst/boxdraw.c194
-rwxr-xr-xst/boxdraw_data.h214
-rwxr-xr-xst/config.def.h517
-rwxr-xr-xst/config.h336
-rwxr-xr-xst/config.h.save486
-rwxr-xr-xst/config.h.save.1486
-rwxr-xr-xst/config.h.save.2486
-rwxr-xr-xst/config.h.save.3486
-rwxr-xr-xst/config.mk38
-rwxr-xr-xst/graphics.c3812
-rwxr-xr-xst/graphics.h107
-rwxr-xr-xst/hb.c125
-rwxr-xr-xst/hb.h14
-rwxr-xr-xst/icat-mini.sh800
-rwxr-xr-xst/khash.h627
-rwxr-xr-xst/kvec.h90
-rwxr-xr-xst/rowcolumn_diacritics_helpers.c391
-rwxr-xr-xst/st-alpha-changealpha-20230519-b44f2ad.diff194
-rwxr-xr-xst/st.1177
-rwxr-xr-xst/st.c2584
-rwxr-xr-xst/st.corebin0 -> 22913024 bytes
-rwxr-xr-xst/st.h130
-rwxr-xr-xst/st.info243
-rwxr-xr-xst/win.h41
-rwxr-xr-xst/x.c2319
31 files changed, 15112 insertions, 0 deletions
diff --git a/st/LEGACY b/st/LEGACY
new file mode 100755
index 0000000..bf28b1e
--- /dev/null
+++ b/st/LEGACY
@@ -0,0 +1,17 @@
+A STATEMENT ON LEGACY SUPPORT
+
+In the terminal world there is much cruft that comes from old and unsup‐
+ported terminals that inherit incompatible modes and escape sequences
+which noone is able to know, except when he/she comes from that time and
+developed a graphical vt100 emulator at that time.
+
+One goal of st is to only support what is really needed. When you en‐
+counter a sequence which you really need, implement it. But while you
+are at it, do not add the other cruft you might encounter while sneek‐
+ing at other terminal emulators. History has bloated them and there is
+no real evidence that most of the sequences are used today.
+
+
+Christoph Lohmann <20h@r-36.net>
+2012-09-13T07:00:36.081271045+02:00
+
diff --git a/st/LICENSE b/st/LICENSE
new file mode 100755
index 0000000..3cbf420
--- /dev/null
+++ b/st/LICENSE
@@ -0,0 +1,34 @@
+MIT/X Consortium License
+
+© 2014-2022 Hiltjo Posthuma <hiltjo at codemadness dot org>
+© 2018 Devin J. Pohly <djpohly at gmail dot com>
+© 2014-2017 Quentin Rameau <quinq at fifth dot space>
+© 2009-2012 Aurélien APTEL <aurelien dot aptel at gmail dot com>
+© 2008-2017 Anselm R Garbe <garbeam at gmail dot com>
+© 2012-2017 Roberto E. Vargas Caballero <k0ga at shike2 dot com>
+© 2012-2016 Christoph Lohmann <20h at r-36 dot net>
+© 2013 Eon S. Jeon <esjeon at hyunmu dot am>
+© 2013 Alexander Sedov <alex0player at gmail dot com>
+© 2013 Mark Edgar <medgar123 at gmail dot com>
+© 2013-2014 Eric Pruitt <eric.pruitt at gmail dot com>
+© 2013 Michael Forney <mforney at mforney dot org>
+© 2013-2014 Markus Teich <markus dot teich at stusta dot mhn dot de>
+© 2014-2015 Laslo Hunhold <dev at frign dot de>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/st/Makefile b/st/Makefile
new file mode 100755
index 0000000..dfcea0f
--- /dev/null
+++ b/st/Makefile
@@ -0,0 +1,52 @@
+# st - simple terminal
+# See LICENSE file for copyright and license details.
+.POSIX:
+
+include config.mk
+
+SRC = st.c x.c hb.c
+OBJ = $(SRC:.c=.o)
+
+all: st
+
+config.h:
+ cp config.def.h config.h
+
+.c.o:
+ $(CC) $(STCFLAGS) -c $<
+
+st.o: config.h st.h win.h
+x.o: arg.h config.h st.h win.h hb.h
+hb.o: st.h
+
+$(OBJ): config.h config.mk
+
+st: $(OBJ)
+ $(CC) -o $@ $(OBJ) $(STLDFLAGS)
+
+clean:
+ rm -f st $(OBJ) st-$(VERSION).tar.gz
+
+dist: clean
+ mkdir -p st-$(VERSION)
+ cp -R FAQ LEGACY TODO LICENSE Makefile README config.mk\
+ config.def.h st.info st.1 arg.h st.h win.h $(SRC)\
+ st-$(VERSION)
+ tar -cf - st-$(VERSION) | gzip > st-$(VERSION).tar.gz
+ rm -rf st-$(VERSION)
+
+install: st
+ mkdir -p $(DESTDIR)$(PREFIX)/bin
+ cp -f st $(DESTDIR)$(PREFIX)/bin
+ chmod 755 $(DESTDIR)$(PREFIX)/bin/st
+ mkdir -p $(DESTDIR)$(MANPREFIX)/man1
+ sed "s/VERSION/$(VERSION)/g" < st.1 > $(DESTDIR)$(MANPREFIX)/man1/st.1
+ chmod 644 $(DESTDIR)$(MANPREFIX)/man1/st.1
+ tic -sx st.info
+ @echo Please see the README file regarding the terminfo entry of st.
+
+uninstall:
+ rm -f $(DESTDIR)$(PREFIX)/bin/st
+ rm -f $(DESTDIR)$(MANPREFIX)/man1/st.1
+
+.PHONY: all clean dist install uninstall
diff --git a/st/README b/st/README
new file mode 100755
index 0000000..6a846ed
--- /dev/null
+++ b/st/README
@@ -0,0 +1,34 @@
+st - simple terminal
+--------------------
+st is a simple terminal emulator for X which sucks less.
+
+
+Requirements
+------------
+In order to build st you need the Xlib header files.
+
+
+Installation
+------------
+Edit config.mk to match your local setup (st is installed into
+the /usr/local namespace by default).
+
+Afterwards enter the following command to build and install st (if
+necessary as root):
+
+ make clean install
+
+
+Running st
+----------
+If you did not install st with make clean install, you must compile
+the st terminfo entry with the following command:
+
+ tic -sx st.info
+
+See the man page for additional details.
+
+Credits
+-------
+Based on Aurélien APTEL <aurelien dot aptel at gmail dot com> bt source code.
+
diff --git a/st/TODO b/st/TODO
new file mode 100755
index 0000000..5f74cd5
--- /dev/null
+++ b/st/TODO
@@ -0,0 +1,28 @@
+vt emulation
+------------
+
+* double-height support
+
+code & interface
+----------------
+
+* add a simple way to do multiplexing
+
+drawing
+-------
+* add diacritics support to xdraws()
+ * switch to a suckless font drawing library
+* make the font cache simpler
+* add better support for brightening of the upper colors
+
+bugs
+----
+
+* fix shift up/down (shift selection in emacs)
+* remove DEC test sequence when appropriate
+
+misc
+----
+
+ $ grep -nE 'XXX|TODO' st.c
+
diff --git a/st/arg.h b/st/arg.h
new file mode 100755
index 0000000..a22e019
--- /dev/null
+++ b/st/arg.h
@@ -0,0 +1,50 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][0] == '-'\
+ && argv[0][1];\
+ argc--, argv++) {\
+ char argc_;\
+ char **argv_;\
+ int brk_;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ int i_;\
+ for (i_ = 1, brk_ = 0, argv_ = argv;\
+ argv[0][i_] && !brk_;\
+ i_++) {\
+ if (argv_ != argv)\
+ break;\
+ argc_ = argv[0][i_];\
+ switch (argc_)
+
+#define ARGEND }\
+ }
+
+#define ARGC() argc_
+
+#define EARGF(x) ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
+ ((x), abort(), (char *)0) :\
+ (brk_ = 1, (argv[0][i_+1] != '\0')?\
+ (&argv[0][i_+1]) :\
+ (argc--, argv++, argv[0])))
+
+#define ARGF() ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
+ (char *)0 :\
+ (brk_ = 1, (argv[0][i_+1] != '\0')?\
+ (&argv[0][i_+1]) :\
+ (argc--, argv++, argv[0])))
+
+#endif
diff --git a/st/boxdraw.c b/st/boxdraw.c
new file mode 100755
index 0000000..28a92d0
--- /dev/null
+++ b/st/boxdraw.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih
+ * MIT/X Consortium License
+ */
+
+#include <X11/Xft/Xft.h>
+#include "st.h"
+#include "boxdraw_data.h"
+
+/* Rounded non-negative integers division of n / d */
+#define DIV(n, d) (((n) + (d) / 2) / (d))
+
+static Display *xdpy;
+static Colormap xcmap;
+static XftDraw *xd;
+static Visual *xvis;
+
+static void drawbox(int, int, int, int, XftColor *, XftColor *, ushort);
+static void drawboxlines(int, int, int, int, XftColor *, ushort);
+
+/* public API */
+
+void
+boxdraw_xinit(Display *dpy, Colormap cmap, XftDraw *draw, Visual *vis)
+{
+ xdpy = dpy; xcmap = cmap; xd = draw, xvis = vis;
+}
+
+int
+isboxdraw(Rune u)
+{
+ Rune block = u & ~0xff;
+ return (boxdraw && block == 0x2500 && boxdata[(uint8_t)u]) ||
+ (boxdraw_braille && block == 0x2800);
+}
+
+/* the "index" is actually the entire shape data encoded as ushort */
+ushort
+boxdrawindex(const Glyph *g)
+{
+ if (boxdraw_braille && (g->u & ~0xff) == 0x2800)
+ return BRL | (uint8_t)g->u;
+ if (boxdraw_bold && (g->mode & ATTR_BOLD))
+ return BDB | boxdata[(uint8_t)g->u];
+ return boxdata[(uint8_t)g->u];
+}
+
+void
+drawboxes(int x, int y, int cw, int ch, XftColor *fg, XftColor *bg,
+ const XftGlyphFontSpec *specs, int len)
+{
+ for ( ; len-- > 0; x += cw, specs++)
+ drawbox(x, y, cw, ch, fg, bg, (ushort)specs->glyph);
+}
+
+/* implementation */
+
+void
+drawbox(int x, int y, int w, int h, XftColor *fg, XftColor *bg, ushort bd)
+{
+ ushort cat = bd & ~(BDB | 0xff); /* mask out bold and data */
+ if (bd & (BDL | BDA)) {
+ /* lines (light/double/heavy/arcs) */
+ drawboxlines(x, y, w, h, fg, bd);
+
+ } else if (cat == BBD) {
+ /* lower (8-X)/8 block */
+ int d = DIV((uint8_t)bd * h, 8);
+ XftDrawRect(xd, fg, x, y + d, w, h - d);
+
+ } else if (cat == BBU) {
+ /* upper X/8 block */
+ XftDrawRect(xd, fg, x, y, w, DIV((uint8_t)bd * h, 8));
+
+ } else if (cat == BBL) {
+ /* left X/8 block */
+ XftDrawRect(xd, fg, x, y, DIV((uint8_t)bd * w, 8), h);
+
+ } else if (cat == BBR) {
+ /* right (8-X)/8 block */
+ int d = DIV((uint8_t)bd * w, 8);
+ XftDrawRect(xd, fg, x + d, y, w - d, h);
+
+ } else if (cat == BBQ) {
+ /* Quadrants */
+ int w2 = DIV(w, 2), h2 = DIV(h, 2);
+ if (bd & TL)
+ XftDrawRect(xd, fg, x, y, w2, h2);
+ if (bd & TR)
+ XftDrawRect(xd, fg, x + w2, y, w - w2, h2);
+ if (bd & BL)
+ XftDrawRect(xd, fg, x, y + h2, w2, h - h2);
+ if (bd & BR)
+ XftDrawRect(xd, fg, x + w2, y + h2, w - w2, h - h2);
+
+ } else if (bd & BBS) {
+ /* Shades - data is 1/2/3 for 25%/50%/75% alpha, respectively */
+ int d = (uint8_t)bd;
+ XftColor xfc;
+ XRenderColor xrc = { .alpha = 0xffff };
+
+ xrc.red = DIV(fg->color.red * d + bg->color.red * (4 - d), 4);
+ xrc.green = DIV(fg->color.green * d + bg->color.green * (4 - d), 4);
+ xrc.blue = DIV(fg->color.blue * d + bg->color.blue * (4 - d), 4);
+
+ XftColorAllocValue(xdpy, xvis, xcmap, &xrc, &xfc);
+ XftDrawRect(xd, &xfc, x, y, w, h);
+ XftColorFree(xdpy, xvis, xcmap, &xfc);
+
+ } else if (cat == BRL) {
+ /* braille, each data bit corresponds to one dot at 2x4 grid */
+ int w1 = DIV(w, 2);
+ int h1 = DIV(h, 4), h2 = DIV(h, 2), h3 = DIV(3 * h, 4);
+
+ if (bd & 1) XftDrawRect(xd, fg, x, y, w1, h1);
+ if (bd & 2) XftDrawRect(xd, fg, x, y + h1, w1, h2 - h1);
+ if (bd & 4) XftDrawRect(xd, fg, x, y + h2, w1, h3 - h2);
+ if (bd & 8) XftDrawRect(xd, fg, x + w1, y, w - w1, h1);
+ if (bd & 16) XftDrawRect(xd, fg, x + w1, y + h1, w - w1, h2 - h1);
+ if (bd & 32) XftDrawRect(xd, fg, x + w1, y + h2, w - w1, h3 - h2);
+ if (bd & 64) XftDrawRect(xd, fg, x, y + h3, w1, h - h3);
+ if (bd & 128) XftDrawRect(xd, fg, x + w1, y + h3, w - w1, h - h3);
+
+ }
+}
+
+void
+drawboxlines(int x, int y, int w, int h, XftColor *fg, ushort bd)
+{
+ /* s: stem thickness. width/8 roughly matches underscore thickness. */
+ /* We draw bold as 1.5 * normal-stem and at least 1px thicker. */
+ /* doubles draw at least 3px, even when w or h < 3. bold needs 6px. */
+ int mwh = MIN(w, h);
+ int base_s = MAX(1, DIV(mwh, 8));
+ int bold = (bd & BDB) && mwh >= 6; /* possibly ignore boldness */
+ int s = bold ? MAX(base_s + 1, DIV(3 * base_s, 2)) : base_s;
+ int w2 = DIV(w - s, 2), h2 = DIV(h - s, 2);
+ /* the s-by-s square (x + w2, y + h2, s, s) is the center texel. */
+ /* The base length (per direction till edge) includes this square. */
+
+ int light = bd & (LL | LU | LR | LD);
+ int double_ = bd & (DL | DU | DR | DD);
+
+ if (light) {
+ /* d: additional (negative) length to not-draw the center */
+ /* texel - at arcs and avoid drawing inside (some) doubles */
+ int arc = bd & BDA;
+ int multi_light = light & (light - 1);
+ int multi_double = double_ & (double_ - 1);
+ /* light crosses double only at DH+LV, DV+LH (ref. shapes) */
+ int d = arc || (multi_double && !multi_light) ? -s : 0;
+
+ if (bd & LL)
+ XftDrawRect(xd, fg, x, y + h2, w2 + s + d, s);
+ if (bd & LU)
+ XftDrawRect(xd, fg, x + w2, y, s, h2 + s + d);
+ if (bd & LR)
+ XftDrawRect(xd, fg, x + w2 - d, y + h2, w - w2 + d, s);
+ if (bd & LD)
+ XftDrawRect(xd, fg, x + w2, y + h2 - d, s, h - h2 + d);
+ }
+
+ /* double lines - also align with light to form heavy when combined */
+ if (double_) {
+ /*
+ * going clockwise, for each double-ray: p is additional length
+ * to the single-ray nearer to the previous direction, and n to
+ * the next. p and n adjust from the base length to lengths
+ * which consider other doubles - shorter to avoid intersections
+ * (p, n), or longer to draw the far-corner texel (n).
+ */
+ int dl = bd & DL, du = bd & DU, dr = bd & DR, dd = bd & DD;
+ if (dl) {
+ int p = dd ? -s : 0, n = du ? -s : dd ? s : 0;
+ XftDrawRect(xd, fg, x, y + h2 + s, w2 + s + p, s);
+ XftDrawRect(xd, fg, x, y + h2 - s, w2 + s + n, s);
+ }
+ if (du) {
+ int p = dl ? -s : 0, n = dr ? -s : dl ? s : 0;
+ XftDrawRect(xd, fg, x + w2 - s, y, s, h2 + s + p);
+ XftDrawRect(xd, fg, x + w2 + s, y, s, h2 + s + n);
+ }
+ if (dr) {
+ int p = du ? -s : 0, n = dd ? -s : du ? s : 0;
+ XftDrawRect(xd, fg, x + w2 - p, y + h2 - s, w - w2 + p, s);
+ XftDrawRect(xd, fg, x + w2 - n, y + h2 + s, w - w2 + n, s);
+ }
+ if (dd) {
+ int p = dr ? -s : 0, n = dl ? -s : dr ? s : 0;
+ XftDrawRect(xd, fg, x + w2 + s, y + h2 - p, s, h - h2 + p);
+ XftDrawRect(xd, fg, x + w2 - s, y + h2 - n, s, h - h2 + n);
+ }
+ }
+}
diff --git a/st/boxdraw_data.h b/st/boxdraw_data.h
new file mode 100755
index 0000000..7890500
--- /dev/null
+++ b/st/boxdraw_data.h
@@ -0,0 +1,214 @@
+/*
+ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih
+ * MIT/X Consortium License
+ */
+
+/*
+ * U+25XX codepoints data
+ *
+ * References:
+ * http://www.unicode.org/charts/PDF/U2500.pdf
+ * http://www.unicode.org/charts/PDF/U2580.pdf
+ *
+ * Test page:
+ * https://github.com/GNOME/vte/blob/master/doc/boxes.txt
+ */
+
+/* Each shape is encoded as 16-bits. Higher bits are category, lower are data */
+/* Categories (mutually exclusive except BDB): */
+/* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */
+#define BDL (1<<8) /* Box Draw Lines (light/double/heavy) */
+#define BDA (1<<9) /* Box Draw Arc (light) */
+
+#define BBD (1<<10) /* Box Block Down (lower) X/8 */
+#define BBL (2<<10) /* Box Block Left X/8 */
+#define BBU (3<<10) /* Box Block Upper X/8 */
+#define BBR (4<<10) /* Box Block Right X/8 */
+#define BBQ (5<<10) /* Box Block Quadrants */
+#define BRL (6<<10) /* Box Braille (data is lower byte of U28XX) */
+
+#define BBS (1<<14) /* Box Block Shades */
+#define BDB (1<<15) /* Box Draw is Bold */
+
+/* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical */
+/* Heavy is light+double (literally drawing light+double align to form heavy) */
+#define LL (1<<0)
+#define LU (1<<1)
+#define LR (1<<2)
+#define LD (1<<3)
+#define LH (LL+LR)
+#define LV (LU+LD)
+
+#define DL (1<<4)
+#define DU (1<<5)
+#define DR (1<<6)
+#define DD (1<<7)
+#define DH (DL+DR)
+#define DV (DU+DD)
+
+#define HL (LL+DL)
+#define HU (LU+DU)
+#define HR (LR+DR)
+#define HD (LD+DD)
+#define HH (HL+HR)
+#define HV (HU+HD)
+
+/* (BBQ) Quadrants Top/Bottom x Left/Right */
+#define TL (1<<0)
+#define TR (1<<1)
+#define BL (1<<2)
+#define BR (1<<3)
+
+/* Data for U+2500 - U+259F except dashes/diagonals */
+static const unsigned short boxdata[256] = {
+ /* light lines */
+ [0x00] = BDL + LH, /* light horizontal */
+ [0x02] = BDL + LV, /* light vertical */
+ [0x0c] = BDL + LD + LR, /* light down and right */
+ [0x10] = BDL + LD + LL, /* light down and left */
+ [0x14] = BDL + LU + LR, /* light up and right */
+ [0x18] = BDL + LU + LL, /* light up and left */
+ [0x1c] = BDL + LV + LR, /* light vertical and right */
+ [0x24] = BDL + LV + LL, /* light vertical and left */
+ [0x2c] = BDL + LH + LD, /* light horizontal and down */
+ [0x34] = BDL + LH + LU, /* light horizontal and up */
+ [0x3c] = BDL + LV + LH, /* light vertical and horizontal */
+ [0x74] = BDL + LL, /* light left */
+ [0x75] = BDL + LU, /* light up */
+ [0x76] = BDL + LR, /* light right */
+ [0x77] = BDL + LD, /* light down */
+
+ /* heavy [+light] lines */
+ [0x01] = BDL + HH,
+ [0x03] = BDL + HV,
+ [0x0d] = BDL + HR + LD,
+ [0x0e] = BDL + HD + LR,
+ [0x0f] = BDL + HD + HR,
+ [0x11] = BDL + HL + LD,
+ [0x12] = BDL + HD + LL,
+ [0x13] = BDL + HD + HL,
+ [0x15] = BDL + HR + LU,
+ [0x16] = BDL + HU + LR,
+ [0x17] = BDL + HU + HR,
+ [0x19] = BDL + HL + LU,
+ [0x1a] = BDL + HU + LL,
+ [0x1b] = BDL + HU + HL,
+ [0x1d] = BDL + HR + LV,
+ [0x1e] = BDL + HU + LD + LR,
+ [0x1f] = BDL + HD + LR + LU,
+ [0x20] = BDL + HV + LR,
+ [0x21] = BDL + HU + HR + LD,
+ [0x22] = BDL + HD + HR + LU,
+ [0x23] = BDL + HV + HR,
+ [0x25] = BDL + HL + LV,
+ [0x26] = BDL + HU + LD + LL,
+ [0x27] = BDL + HD + LU + LL,
+ [0x28] = BDL + HV + LL,
+ [0x29] = BDL + HU + HL + LD,
+ [0x2a] = BDL + HD + HL + LU,
+ [0x2b] = BDL + HV + HL,
+ [0x2d] = BDL + HL + LD + LR,
+ [0x2e] = BDL + HR + LL + LD,
+ [0x2f] = BDL + HH + LD,
+ [0x30] = BDL + HD + LH,
+ [0x31] = BDL + HD + HL + LR,
+ [0x32] = BDL + HR + HD + LL,
+ [0x33] = BDL + HH + HD,
+ [0x35] = BDL + HL + LU + LR,
+ [0x36] = BDL + HR + LU + LL,
+ [0x37] = BDL + HH + LU,
+ [0x38] = BDL + HU + LH,
+ [0x39] = BDL + HU + HL + LR,
+ [0x3a] = BDL + HU + HR + LL,
+ [0x3b] = BDL + HH + HU,
+ [0x3d] = BDL + HL + LV + LR,
+ [0x3e] = BDL + HR + LV + LL,
+ [0x3f] = BDL + HH + LV,
+ [0x40] = BDL + HU + LH + LD,
+ [0x41] = BDL + HD + LH + LU,
+ [0x42] = BDL + HV + LH,
+ [0x43] = BDL + HU + HL + LD + LR,
+ [0x44] = BDL + HU + HR + LD + LL,
+ [0x45] = BDL + HD + HL + LU + LR,
+ [0x46] = BDL + HD + HR + LU + LL,
+ [0x47] = BDL + HH + HU + LD,
+ [0x48] = BDL + HH + HD + LU,
+ [0x49] = BDL + HV + HL + LR,
+ [0x4a] = BDL + HV + HR + LL,
+ [0x4b] = BDL + HV + HH,
+ [0x78] = BDL + HL,
+ [0x79] = BDL + HU,
+ [0x7a] = BDL + HR,
+ [0x7b] = BDL + HD,
+ [0x7c] = BDL + HR + LL,
+ [0x7d] = BDL + HD + LU,
+ [0x7e] = BDL + HL + LR,
+ [0x7f] = BDL + HU + LD,
+
+ /* double [+light] lines */
+ [0x50] = BDL + DH,
+ [0x51] = BDL + DV,
+ [0x52] = BDL + DR + LD,
+ [0x53] = BDL + DD + LR,
+ [0x54] = BDL + DR + DD,
+ [0x55] = BDL + DL + LD,
+ [0x56] = BDL + DD + LL,
+ [0x57] = BDL + DL + DD,
+ [0x58] = BDL + DR + LU,
+ [0x59] = BDL + DU + LR,
+ [0x5a] = BDL + DU + DR,
+ [0x5b] = BDL + DL + LU,
+ [0x5c] = BDL + DU + LL,
+ [0x5d] = BDL + DL + DU,
+ [0x5e] = BDL + DR + LV,
+ [0x5f] = BDL + DV + LR,
+ [0x60] = BDL + DV + DR,
+ [0x61] = BDL + DL + LV,
+ [0x62] = BDL + DV + LL,
+ [0x63] = BDL + DV + DL,
+ [0x64] = BDL + DH + LD,
+ [0x65] = BDL + DD + LH,
+ [0x66] = BDL + DD + DH,
+ [0x67] = BDL + DH + LU,
+ [0x68] = BDL + DU + LH,
+ [0x69] = BDL + DH + DU,
+ [0x6a] = BDL + DH + LV,
+ [0x6b] = BDL + DV + LH,
+ [0x6c] = BDL + DH + DV,
+
+ /* (light) arcs */
+ [0x6d] = BDA + LD + LR,
+ [0x6e] = BDA + LD + LL,
+ [0x6f] = BDA + LU + LL,
+ [0x70] = BDA + LU + LR,
+
+ /* Lower (Down) X/8 block (data is 8 - X) */
+ [0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4,
+ [0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0,
+
+ /* Left X/8 block (data is X) */
+ [0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4,
+ [0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1,
+
+ /* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */
+ [0x80] = BBU + 4, [0x94] = BBU + 1,
+ [0x90] = BBR + 4, [0x95] = BBR + 7,
+
+ /* Quadrants */
+ [0x96] = BBQ + BL,
+ [0x97] = BBQ + BR,
+ [0x98] = BBQ + TL,
+ [0x99] = BBQ + TL + BL + BR,
+ [0x9a] = BBQ + TL + BR,
+ [0x9b] = BBQ + TL + TR + BL,
+ [0x9c] = BBQ + TL + TR + BR,
+ [0x9d] = BBQ + TR,
+ [0x9e] = BBQ + BL + TR,
+ [0x9f] = BBQ + BL + TR + BR,
+
+ /* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */
+ [0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3,
+
+ /* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */
+ /* U+2571 - U+2573: unsupported (diagonals) */
+};
diff --git a/st/config.def.h b/st/config.def.h
new file mode 100755
index 0000000..e3c30ed
--- /dev/null
+++ b/st/config.def.h
@@ -0,0 +1,517 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static const char *font = "CaskaydiaMonoNerdFontMono-Bold:size=14:style=Bold";
+/* Spare fonts */
+
+static char *font2[] = {
+ "CaskaydiaMonoNerdFontMono-Bold:pixelsize=12:antialias=true:autohint=true"};
+static int borderpx = 6;
+
+/* How to align the content in the window when the size of the terminal
+ * doesn't perfectly match the size of the window. The values are percentages.
+ * 50 means center, 0 means flush left/top, 100 means flush right/bottom.
+ */
+static int anysize_halign = 50;
+static int anysize_valign = 50;
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: scroll and/or utmp
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char *shell = "/bin/sh";
+char *utmp = NULL;
+/* scroll program: to enable use a string like "scroll" */
+char *scroll = NULL;
+char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+/* By default, use the same one as kitty. */
+
+char *vtiden = "\033[?62c";
+//char *vtiden = "\x1b[?62;4c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1;
+static float chscale = 1;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: L" `'\"()[]{}"
+ */
+wchar_t *worddelimiters = L" ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+int allowaltscreen = 1;
+
+/* allow certain non-interactive (insecure) window operations such as:
+ setting the clipboard text */
+int allowwindowops = 0;
+
+/*
+ * draw latency range in ms - from new content/keypress/etc until drawing.
+ * within this range, st draws when content stops arriving (idle). mostly it's
+ * near minlatency, but it waits longer for slow updates to avoid partial draw.
+ * low minlatency will tear/flicker more, as it can "detect" idle too early.
+ */
+static double minlatency = 1;
+static double maxlatency = 10;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 100;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * 1: render most of the lines/blocks characters without using the font for
+ * perfect alignment between cells (U2500 - U259F except dashes/diagonals).
+ * Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored.
+ * 0: disable (render all U25XX glyphs normally from the font).
+ */
+const int boxdraw = 1;
+const int boxdraw_bold = 1;
+
+/* braille (U28XX): 1: render as adjacent "pixels", 0: use font */
+const int boxdraw_braille = 0;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+char *termname = "st";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ * it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ * running following command:
+ *
+ * stty tabs
+ */
+unsigned int tabspaces = 8;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+ /* 8 normal colors */
+ "black", "red3", "green3", "yellow3", "blue2", "magenta3", "cyan3",
+ "gray90",
+
+ /* 8 bright colors */
+ "gray50", "red", "green", "yellow", "#5c5cff", "magenta", "cyan", "white",
+
+ [255] = 0,
+
+ /* more colors can be added after 255 to use with DefaultXX */
+ "#cccccc", "#555555", "gray90", /* default foreground colour */
+ "black", /* default background colour */
+};
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+unsigned int defaultfg = 258;
+unsigned int defaultbg = 259;
+unsigned int defaultcs = 256;
+static unsigned int defaultrcs = 257;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 2;
+
+/*
+ * Default columns and rows numbers
+ */
+
+static unsigned int cols = 80;
+static unsigned int rows = 24;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Color used to display font attributes when fontconfig selected a font which
+ * doesn't match the ones requested.
+ */
+static unsigned int defaultattr = 11;
+
+/*
+ * Graphics configuration
+ */
+
+/// The template for the cache directory.
+const char graphics_cache_dir_template[] = "/tmp/st-images-XXXXXX";
+/// The max size of a single image file, in bytes.
+unsigned graphics_max_single_image_file_size = 20 * 1024 * 1024;
+/// The max size of the cache, in bytes.
+unsigned graphics_total_file_cache_size = 300 * 1024 * 1024;
+/// The max ram size of an image or placement, in bytes.
+unsigned graphics_max_single_image_ram_size = 100 * 1024 * 1024;
+/// The max total size of all images loaded into RAM.
+unsigned graphics_max_total_ram_size = 300 * 1024 * 1024;
+/// The max total number of image placements and images.
+unsigned graphics_max_total_placements = 4096;
+/// The ratio by which limits can be exceeded. This is to reduce the frequency
+/// of image removal.
+double graphics_excess_tolerance_ratio = 0.05;
+/// The minimum delay between redraws caused by animations, in milliseconds.
+unsigned graphics_animation_min_delay = 20;
+
+/*
+ * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forcemousemod = ShiftMask;
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+#define TERMMOD (ControlMask | ShiftMask)
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+ /* mask button function argument release */
+ {TERMMOD, Button3, previewimage, {.s = "feh"}},
+ {TERMMOD, Button2, showimageinfo, {}, 1},
+ {XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1},
+ {ShiftMask, Button4, kscrollup, {.i = 1}},
+ {ShiftMask, Button5, kscrolldown, {.i = 1}},
+ {ShiftMask, Button4, ttysend, {.s = "\033[5;2~"}},
+ {XK_ANY_MOD, Button4, ttysend, {.s = "\031"}},
+ {ShiftMask, Button5, ttysend, {.s = "\033[6;2~"}},
+ {XK_ANY_MOD, Button5, ttysend, {.s = "\005"}},
+};
+
+/* Internal keyboard shortcuts. */
+
+static Shortcut shortcuts[] = {
+ /* mask keysym function argument */
+ {TERMMOD, XK_F1, togglegrdebug, {.i = 0}},
+ {TERMMOD, XK_F6, dumpgrstate, {.i = 0}},
+ {TERMMOD, XK_F7, unloadimages, {.i = 0}},
+ {TERMMOD, XK_F8, toggleimages, {.i = 0}},
+ {XK_ANY_MOD, XK_Break, sendbreak, {.i = 0}},
+ {ControlMask, XK_Print, toggleprinter, {.i = 0}},
+ {ShiftMask, XK_Print, printscreen, {.i = 0}},
+ {XK_ANY_MOD, XK_Print, printsel, {.i = 0}},
+ {TERMMOD, XK_C, clipcopy, {.i = 0}},
+ {TERMMOD, XK_V, clippaste, {.i = 0}},
+ {TERMMOD, XK_Y, selpaste, {.i = 0}},
+ {ShiftMask, XK_Page_Up, kscrollup, {.i = -1}},
+ {ShiftMask, XK_Page_Down, kscrolldown, {.i = -1}},
+ {ShiftMask, XK_Insert, selpaste, {.i = 0}},
+ {TERMMOD, XK_Num_Lock, numlock, {.i = 0}},
+ {TERMMOD, XK_plus, zoom, {.f = +1}},
+ {TERMMOD, XK_underscore, zoom, {.f = -1}},
+ {TERMMOD, XK_equal, zoomreset, {0}},
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * * = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = {-1};
+
+/*
+ * State bits to ignore when matching key or button events. By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask | XK_SWITCH_MOD;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+ /* keysym mask string appkey appcursor */
+ {XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
+ {XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
+ {XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ {XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ {XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
+ {XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ {XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ {XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
+ {XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ {XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ {XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
+ {XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ {XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ {XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
+ {XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ {XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ {XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ {XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ {XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
+ {XK_KP_End, ControlMask, "\033[J", -1, 0},
+ {XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
+ {XK_KP_End, ShiftMask, "\033[K", -1, 0},
+ {XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
+ {XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ {XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
+ {XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ {XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ {XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
+ {XK_KP_Insert, ControlMask, "\033[L", -1, 0},
+ {XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
+ {XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ {XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ {XK_KP_Delete, ControlMask, "\033[M", -1, 0},
+ {XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
+ {XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
+ {XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ {XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ {XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ {XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
+ {XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
+ {XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
+ {XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
+ {XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
+ {XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
+ {XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
+ {XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
+ {XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
+ {XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
+ {XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
+ {XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
+ {XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
+ {XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
+ {XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
+ {XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
+ {XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
+ {XK_Up, ShiftMask, "\033[1;2A", 0, 0},
+ {XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
+ {XK_Up, ShiftMask | Mod1Mask, "\033[1;4A", 0, 0},
+ {XK_Up, ControlMask, "\033[1;5A", 0, 0},
+ {XK_Up, ShiftMask | ControlMask, "\033[1;6A", 0, 0},
+ {XK_Up, ControlMask | Mod1Mask, "\033[1;7A", 0, 0},
+ {XK_Up, ShiftMask | ControlMask | Mod1Mask, "\033[1;8A", 0, 0},
+ {XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ {XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ {XK_Down, ShiftMask, "\033[1;2B", 0, 0},
+ {XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
+ {XK_Down, ShiftMask | Mod1Mask, "\033[1;4B", 0, 0},
+ {XK_Down, ControlMask, "\033[1;5B", 0, 0},
+ {XK_Down, ShiftMask | ControlMask, "\033[1;6B", 0, 0},
+ {XK_Down, ControlMask | Mod1Mask, "\033[1;7B", 0, 0},
+ {XK_Down, ShiftMask | ControlMask | Mod1Mask, "\033[1;8B", 0, 0},
+ {XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ {XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ {XK_Left, ShiftMask, "\033[1;2D", 0, 0},
+ {XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
+ {XK_Left, ShiftMask | Mod1Mask, "\033[1;4D", 0, 0},
+ {XK_Left, ControlMask, "\033[1;5D", 0, 0},
+ {XK_Left, ShiftMask | ControlMask, "\033[1;6D", 0, 0},
+ {XK_Left, ControlMask | Mod1Mask, "\033[1;7D", 0, 0},
+ {XK_Left, ShiftMask | ControlMask | Mod1Mask, "\033[1;8D", 0, 0},
+ {XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ {XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ {XK_Right, ShiftMask, "\033[1;2C", 0, 0},
+ {XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
+ {XK_Right, ShiftMask | Mod1Mask, "\033[1;4C", 0, 0},
+ {XK_Right, ControlMask, "\033[1;5C", 0, 0},
+ {XK_Right, ShiftMask | ControlMask, "\033[1;6C", 0, 0},
+ {XK_Right, ControlMask | Mod1Mask, "\033[1;7C", 0, 0},
+ {XK_Right, ShiftMask | ControlMask | Mod1Mask, "\033[1;8C", 0, 0},
+ {XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ {XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ {XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
+ {XK_Return, Mod1Mask, "\033\r", 0, 0},
+ {XK_Return, XK_ANY_MOD, "\r", 0, 0},
+ {XK_Insert, ShiftMask, "\033[4l", -1, 0},
+ {XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ {XK_Insert, ControlMask, "\033[L", -1, 0},
+ {XK_Insert, ControlMask, "\033[2;5~", +1, 0},
+ {XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ {XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ {XK_Delete, ControlMask, "\033[M", -1, 0},
+ {XK_Delete, ControlMask, "\033[3;5~", +1, 0},
+ {XK_Delete, ShiftMask, "\033[2K", -1, 0},
+ {XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ {XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ {XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ {XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
+ {XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
+ {XK_Home, ShiftMask, "\033[2J", 0, -1},
+ {XK_Home, ShiftMask, "\033[1;2H", 0, +1},
+ {XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ {XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ {XK_End, ControlMask, "\033[J", -1, 0},
+ {XK_End, ControlMask, "\033[1;5F", +1, 0},
+ {XK_End, ShiftMask, "\033[K", -1, 0},
+ {XK_End, ShiftMask, "\033[1;2F", +1, 0},
+ {XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ {XK_Prior, ControlMask, "\033[5;5~", 0, 0},
+ {XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ {XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ {XK_Next, ControlMask, "\033[6;5~", 0, 0},
+ {XK_Next, ShiftMask, "\033[6;2~", 0, 0},
+ {XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ {XK_F1, XK_NO_MOD, "\033OP", 0, 0},
+ {XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
+ {XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
+ {XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
+ {XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
+ {XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
+ {XK_F2, XK_NO_MOD, "\033OQ", 0, 0},
+ {XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
+ {XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
+ {XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
+ {XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
+ {XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
+ {XK_F3, XK_NO_MOD, "\033OR", 0, 0},
+ {XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
+ {XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
+ {XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
+ {XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
+ {XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
+ {XK_F4, XK_NO_MOD, "\033OS", 0, 0},
+ {XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
+ {XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
+ {XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
+ {XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
+ {XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
+ {XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
+ {XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
+ {XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
+ {XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
+ {XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
+ {XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
+ {XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
+ {XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
+ {XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
+ {XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
+ {XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
+ {XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
+ {XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
+ {XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
+ {XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
+ {XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
+ {XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
+ {XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
+ {XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
+ {XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
+ {XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
+ {XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
+ {XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
+ {XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
+ {XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
+ {XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
+ {XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
+ {XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
+ {XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
+ {XK_F11, XK_NO_MOD, "\033[23~", 0, 0},
+ {XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
+ {XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
+ {XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
+ {XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
+ {XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
+ {XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
+ {XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
+ {XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
+ {XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
+ {XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
+ {XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
+ {XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
+ {XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
+ {XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
+ {XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
+ {XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
+ {XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
+ {XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
+ {XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
+ {XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
+ {XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
+ {XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
+ {XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
+ {XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
+ {XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
+ {XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
+ {XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
+ {XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
+ {XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
+ {XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
+ {XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
+ {XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] = " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
diff --git a/st/config.h b/st/config.h
new file mode 100755
index 0000000..f245eb8
--- /dev/null
+++ b/st/config.h
@@ -0,0 +1,336 @@
+static char *font =
+ "JetBrainsMono Nerd Font:size=11:antialias=true:autohint=true";
+static int borderpx = 2;
+
+static char *shell = "/bin/sh";
+char *utmp = NULL;
+char *scroll = NULL;
+char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+char *vtiden = "\033[?6c";
+
+static float cwscale = 0.95;
+static float chscale = 0.95;
+
+wchar_t *worddelimiters = L" ";
+
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+int allowaltscreen = 1;
+
+int allowwindowops = 0;
+
+static double minlatency = 2;
+static double maxlatency = 33;
+
+static unsigned int blinktimeout = 800;
+
+static unsigned int cursorthickness = 2;
+
+static int bellvolume = 0;
+
+char *termname = "xterm";
+
+unsigned int tabspaces = 8;
+
+float alpha = 0.95;
+float alpha_def;
+
+static const char *colorname[] = {
+ "#e7d8b1", "#F38BA8", "#A6E3A1", "#F9E2AF", "#89B4FA", "#F5C2E7", "#94E2D5",
+ "#CDD6F4", "#6C7086", "#F38BA8", "#A6E3A1", "#F9E2AF", "#89B4FA", "#F5C2E7",
+ "#94E2D5", "#ECEFFF", [255] = 0, "#CDD6F4", "#1E1E2E",
+};
+
+unsigned int defaultfg = 256;
+unsigned int defaultbg = 257;
+unsigned int defaultcs = 256;
+static unsigned int defaultrcs = 257;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Pipe ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 2;
+
+static unsigned int cols = 160;
+static unsigned int rows = 40;
+
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+static unsigned int defaultattr = 11;
+
+static uint forcemousemod = ShiftMask;
+
+static MouseShortcut mshortcuts[] = {
+ /* mask button function argument release */
+ {XK_NO_MOD, Button4, kscrollup, {.i = 1}},
+ {XK_NO_MOD, Button5, kscrolldown, {.i = 1}},
+ {XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1},
+ {ShiftMask, Button4, ttysend, {.s = "\033[5;2~"}},
+ {XK_ANY_MOD, Button4, ttysend, {.s = "\031"}},
+ {ShiftMask, Button5, ttysend, {.s = "\033[6;2~"}},
+ {XK_ANY_MOD, Button5, ttysend, {.s = "\005"}},
+};
+
+#define MODKEY Mod1Mask
+#define TERMMOD (Mod1Mask | ShiftMask)
+
+static Shortcut shortcuts[] = {
+ {XK_ANY_MOD, XK_Break, sendbreak, {.i = 0}},
+ {ControlMask, XK_Print, toggleprinter, {.i = 0}},
+ {ShiftMask, XK_Print, printscreen, {.i = 0}},
+ {XK_ANY_MOD, XK_Print, printsel, {.i = 0}},
+ {ControlMask, XK_equal, zoom, {.f = +1}},
+ {ControlMask, XK_minus, zoom, {.f = -1}},
+ {TERMMOD, XK_Home, zoomreset, {.f = 0}},
+ {MODKEY, XK_c, clipcopy, {.i = 0}},
+ {MODKEY, XK_v, clippaste, {.i = 0}},
+ {TERMMOD, XK_Y, selpaste, {.i = 0}},
+ {ShiftMask, XK_Insert, selpaste, {.i = 0}},
+ {TERMMOD, XK_Num_Lock, numlock, {.i = 0}},
+ {MODKEY, XK_k, kscrollup, {.i = 1}},
+ {MODKEY, XK_j, kscrolldown, {.i = 1}},
+};
+
+static KeySym mappedkeys[] = {-1};
+
+static uint ignoremod = Mod2Mask | XK_SWITCH_MOD;
+
+static Key key[] = {
+ /* keysym mask string appkey appcursor */
+ {XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
+ {XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
+ {XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ {XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ {XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
+ {XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ {XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ {XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
+ {XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ {XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ {XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
+ {XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ {XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ {XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
+ {XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ {XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ {XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ {XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ {XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
+ {XK_KP_End, ControlMask, "\033[J", -1, 0},
+ {XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
+ {XK_KP_End, ShiftMask, "\033[K", -1, 0},
+ {XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
+ {XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ {XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
+ {XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ {XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ {XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
+ {XK_KP_Insert, ControlMask, "\033[L", -1, 0},
+ {XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
+ {XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ {XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ {XK_KP_Delete, ControlMask, "\033[M", -1, 0},
+ {XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
+ {XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
+ {XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ {XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ {XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ {XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
+ {XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
+ {XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
+ {XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
+ {XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
+ {XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
+ {XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
+ {XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
+ {XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
+ {XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
+ {XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
+ {XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
+ {XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
+ {XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
+ {XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
+ {XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
+ {XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
+ {XK_Up, ShiftMask, "\033[1;2A", 0, 0},
+ {XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
+ {XK_Up, ShiftMask | Mod1Mask, "\033[1;4A", 0, 0},
+ {XK_Up, ControlMask, "\033[1;5A", 0, 0},
+ {XK_Up, ShiftMask | ControlMask, "\033[1;6A", 0, 0},
+ {XK_Up, ControlMask | Mod1Mask, "\033[1;7A", 0, 0},
+ {XK_Up, ShiftMask | ControlMask | Mod1Mask, "\033[1;8A", 0, 0},
+ {XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ {XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ {XK_Down, ShiftMask, "\033[1;2B", 0, 0},
+ {XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
+ {XK_Down, ShiftMask | Mod1Mask, "\033[1;4B", 0, 0},
+ {XK_Down, ControlMask, "\033[1;5B", 0, 0},
+ {XK_Down, ShiftMask | ControlMask, "\033[1;6B", 0, 0},
+ {XK_Down, ControlMask | Mod1Mask, "\033[1;7B", 0, 0},
+ {XK_Down, ShiftMask | ControlMask | Mod1Mask, "\033[1;8B", 0, 0},
+ {XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ {XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ {XK_Left, ShiftMask, "\033[1;2D", 0, 0},
+ {XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
+ {XK_Left, ShiftMask | Mod1Mask, "\033[1;4D", 0, 0},
+ {XK_Left, ControlMask, "\033[1;5D", 0, 0},
+ {XK_Left, ShiftMask | ControlMask, "\033[1;6D", 0, 0},
+ {XK_Left, ControlMask | Mod1Mask, "\033[1;7D", 0, 0},
+ {XK_Left, ShiftMask | ControlMask | Mod1Mask, "\033[1;8D", 0, 0},
+ {XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ {XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ {XK_Right, ShiftMask, "\033[1;2C", 0, 0},
+ {XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
+ {XK_Right, ShiftMask | Mod1Mask, "\033[1;4C", 0, 0},
+ {XK_Right, ControlMask, "\033[1;5C", 0, 0},
+ {XK_Right, ShiftMask | ControlMask, "\033[1;6C", 0, 0},
+ {XK_Right, ControlMask | Mod1Mask, "\033[1;7C", 0, 0},
+ {XK_Right, ShiftMask | ControlMask | Mod1Mask, "\033[1;8C", 0, 0},
+ {XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ {XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ {XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
+ {XK_Return, Mod1Mask, "\033\r", 0, 0},
+ {XK_Return, XK_ANY_MOD, "\r", 0, 0},
+ {XK_Insert, ShiftMask, "\033[4l", -1, 0},
+ {XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ {XK_Insert, ControlMask, "\033[L", -1, 0},
+ {XK_Insert, ControlMask, "\033[2;5~", +1, 0},
+ {XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ {XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ {XK_Delete, ControlMask, "\033[M", -1, 0},
+ {XK_Delete, ControlMask, "\033[3;5~", +1, 0},
+ {XK_Delete, ShiftMask, "\033[2K", -1, 0},
+ {XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ {XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ {XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ {XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
+ {XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
+ {XK_Home, ShiftMask, "\033[2J", 0, -1},
+ {XK_Home, ShiftMask, "\033[1;2H", 0, +1},
+ {XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ {XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ {XK_End, ControlMask, "\033[J", -1, 0},
+ {XK_End, ControlMask, "\033[1;5F", +1, 0},
+ {XK_End, ShiftMask, "\033[K", -1, 0},
+ {XK_End, ShiftMask, "\033[1;2F", +1, 0},
+ {XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ {XK_Prior, ControlMask, "\033[5;5~", 0, 0},
+ {XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ {XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ {XK_Next, ControlMask, "\033[6;5~", 0, 0},
+ {XK_Next, ShiftMask, "\033[6;2~", 0, 0},
+ {XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ {XK_F1, XK_NO_MOD, "\033OP", 0, 0},
+ {XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
+ {XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
+ {XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
+ {XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
+ {XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
+ {XK_F2, XK_NO_MOD, "\033OQ", 0, 0},
+ {XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
+ {XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
+ {XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
+ {XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
+ {XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
+ {XK_F3, XK_NO_MOD, "\033OR", 0, 0},
+ {XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
+ {XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
+ {XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
+ {XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
+ {XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
+ {XK_F4, XK_NO_MOD, "\033OS", 0, 0},
+ {XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
+ {XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
+ {XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
+ {XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
+ {XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
+ {XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
+ {XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
+ {XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
+ {XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
+ {XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
+ {XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
+ {XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
+ {XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
+ {XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
+ {XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
+ {XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
+ {XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
+ {XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
+ {XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
+ {XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
+ {XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
+ {XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
+ {XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
+ {XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
+ {XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
+ {XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
+ {XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
+ {XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
+ {XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
+ {XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
+ {XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
+ {XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
+ {XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
+ {XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
+ {XK_F16, XK_NO_MOD, "\033[23~", 0, 0},
+ {XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
+ {XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
+ {XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
+ {XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
+ {XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
+ {XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
+ {XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
+ {XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
+ {XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
+ {XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
+ {XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
+ {XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
+ {XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
+ {XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
+ {XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
+ {XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
+ {XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
+ {XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
+ {XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
+ {XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
+ {XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
+ {XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
+ {XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
+ {XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
+ {XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
+ {XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
+ {XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
+ {XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
+ {XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
+ {XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
+ {XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
+ {XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] = " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
diff --git a/st/config.h.save b/st/config.h.save
new file mode 100755
index 0000000..b25362c
--- /dev/null
+++ b/st/config.h.save
@@ -0,0 +1,486 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char *font = "Terminus-9:antialias=true:autohint=true";
+static int borderpx = 2;
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: scroll and/or utmp
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char *shell = "/bin/sh";
+char *utmp = NULL;
+/* scroll program: to enable use a string like "scroll" */
+char *scroll = NULL;
+char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+char *vtiden = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: L" `'\"()[]{}"
+ */
+wchar_t *worddelimiters = L" ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+int allowaltscreen = 1;
+
+/* allow certain non-interactive (insecure) window operations such as:
+ setting the clipboard text */
+int allowwindowops = 0;
+
+/*
+ * draw latency range in ms - from new content/keypress/etc until drawing.
+ * within this range, st draws when content stops arriving (idle). mostly it's
+ * near minlatency, but it waits longer for slow updates to avoid partial draw.
+ * low minlatency will tear/flicker more, as it can "detect" idle too early.
+ */
+static double minlatency = 2;
+static double maxlatency = 33;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+char *termname = "st-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ * it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ * running following command:
+ *
+ * stty tabs
+ */
+unsigned int tabspaces = 8;
+
+/* bg opacity */
+float alpha = 0.8;
+
+/* Background opacity */
+float alpha_def;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+
+ /* 8 normal colors */
+ "#0a0a0a", /* black */
+ "#44516d", /* red */
+ "#c95d38", /* green */
+ "#de9e68", /* yellow */
+ "#8b7675", /* blue */
+ "#7e5f8c", /* magenta */
+ "#8c82c2", /* cyan */
+ "#eff7d0", /* white */
+
+ /* 8 bright colors */
+ "#181818", /* black */
+ "#7d87a1", /* red */
+ "#e9673c", /* green */
+ "#e0b18b", /* yellow */
+ "#b9a192", /* blue */
+ "#9a7ebd", /* magenta */
+ "#bccce2", /* cyan */
+ "#ffffff", /* white */
+
+ [255] = 0,
+
+ /* more colors can be added after 255 to use with DefaultXX */
+ "#gray90", /* default foreground colour */
+ "#black", /* default background colour */
+};
+
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+unsigned int defaultfg = 256;
+unsigned int defaultbg = 257;
+unsigned int defaultcs = 256;
+static unsigned int defaultrcs = 257;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 6;
+
+/*
+ * Default columns and rows numbers
+ */
+
+static unsigned int cols = 80;
+static unsigned int rows = 24;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Color used to display font attributes when fontconfig selected a font which
+ * doesn't match the ones requested.
+ */
+static unsigned int defaultattr = 11;
+
+/*
+ * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forcemousemod = ShiftMask;
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+ /* mask button function argument release */
+ { XK_NO_MOD, Button4, kscrollup, {.i = 1} },
+ { XK_NO_MOD, Button5, kscrolldown, {.i = 1} },
+ { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
+ { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
+ { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
+ { ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} },
+ { XK_ANY_MOD, Button5, ttysend, {.s = "\005"} },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+#define TERMMOD (Mod1Mask|ShiftMask)
+
+static Shortcut shortcuts[] = {
+ /* mask keysym function argument */
+ { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
+ { ControlMask, XK_Print, toggleprinter, {.i = 0} },
+ { ShiftMask, XK_Print, printscreen, {.i = 0} },
+ { XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
+ { ControlMask, XK_j, zoom, {.f = +1} },
+ { ControlMask, XK_minus, zoom, {.f = -1} },
+ { TERMMOD, XK_Home, zoomreset, {.f = 0} },
+ { MODKEY, XK_c, clipcopy, {.i = 0} },
+ { MODKEY, XK_v, clippaste, {.i = 0} },
+ { TERMMOD, XK_Y, selpaste, {.i = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { MODKEY, XK_k, kscrollup, {.i = 1} },
+ { MODKEY, XK_j, kscrolldown, {.i = 1} },
+ { MODKEY, XK_a, chgalpha, {.f = -1} },
+ { MODKEY, XK_s, chgalpha, {.f = +1} },
+ { MODKEY, XK_d, chgalpha, {.f = 0} },
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * * = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events. By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+ /* keysym mask string appkey appcursor */
+ { XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
+ { XK_KP_End, ControlMask, "\033[J", -1, 0},
+ { XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_KP_End, ShiftMask, "\033[K", -1, 0},
+ { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_KP_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
+ { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
+ { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
+ { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
+ { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
+ { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
+ { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
+ { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
+ { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
+ { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
+ { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
+ { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
+ { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
+ { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
+ { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
+ { XK_Up, ShiftMask, "\033[1;2A", 0, 0},
+ { XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
+ { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0},
+ { XK_Up, ControlMask, "\033[1;5A", 0, 0},
+ { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0},
+ { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0},
+ { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0},
+ { XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_Down, ShiftMask, "\033[1;2B", 0, 0},
+ { XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
+ { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0},
+ { XK_Down, ControlMask, "\033[1;5B", 0, 0},
+ { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0},
+ { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0},
+ { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0},
+ { XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_Left, ShiftMask, "\033[1;2D", 0, 0},
+ { XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
+ { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0},
+ { XK_Left, ControlMask, "\033[1;5D", 0, 0},
+ { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0},
+ { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0},
+ { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0},
+ { XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_Right, ShiftMask, "\033[1;2C", 0, 0},
+ { XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
+ { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0},
+ { XK_Right, ControlMask, "\033[1;5C", 0, 0},
+ { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0},
+ { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0},
+ { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0},
+ { XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
+ { XK_Return, Mod1Mask, "\033\r", 0, 0},
+ { XK_Return, XK_ANY_MOD, "\r", 0, 0},
+ { XK_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
+ { XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
+ { XK_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_End, ControlMask, "\033[J", -1, 0},
+ { XK_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_End, ShiftMask, "\033[K", -1, 0},
+ { XK_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_Prior, ControlMask, "\033[5;5~", 0, 0},
+ { XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_Next, ControlMask, "\033[6;5~", 0, 0},
+ { XK_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_F1, XK_NO_MOD, "\033OP" , 0, 0},
+ { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
+ { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
+ { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
+ { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
+ { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
+ { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0},
+ { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
+ { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
+ { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
+ { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
+ { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
+ { XK_F3, XK_NO_MOD, "\033OR" , 0, 0},
+ { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
+ { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
+ { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
+ { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
+ { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
+ { XK_F4, XK_NO_MOD, "\033OS" , 0, 0},
+ { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
+ { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
+ { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
+ { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
+ { XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
+ { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
+ { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
+ { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
+ { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
+ { XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
+ { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
+ { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
+ { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
+ { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
+ { XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
+ { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
+ { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
+ { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
+ { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
+ { XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
+ { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
+ { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
+ { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
+ { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
+ { XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
+ { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
+ { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
+ { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
+ { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
+ { XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
+ { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
+ { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
+ { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
+ { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
+ { XK_F11, XK_NO_MOD, "\033[23~", 0, 0},
+ { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
+ { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
+ { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
+ { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
+ { XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
+ { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
+ { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
+ { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
+ { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
+ { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
+ { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
+ { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
+ { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
+ { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
+ { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
+ { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
+ { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
+ { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
+ { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
+ { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
+ { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
+ { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
+ { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
+ { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
+ { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
+ { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
+ { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
+ { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
+ { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
+ { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
+ { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
+ { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+ " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
diff --git a/st/config.h.save.1 b/st/config.h.save.1
new file mode 100755
index 0000000..d608c5a
--- /dev/null
+++ b/st/config.h.save.1
@@ -0,0 +1,486 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char *font = "Terminus-9:antialias=true:autohint=true";
+static int borderpx = 2;
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: scroll and/or utmp
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char *shell = "/bin/sh";
+char *utmp = NULL;
+/* scroll program: to enable use a string like "scroll" */
+char *scroll = NULL;
+char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+char *vtiden = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: L" `'\"()[]{}"
+ */
+wchar_t *worddelimiters = L" ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+int allowaltscreen = 1;
+
+/* allow certain non-interactive (insecure) window operations such as:
+ setting the clipboard text */
+int allowwindowops = 0;
+
+/*
+ * draw latency range in ms - from new content/keypress/etc until drawing.
+ * within this range, st draws when content stops arriving (idle). mostly it's
+ * near minlatency, but it waits longer for slow updates to avoid partial draw.
+ * low minlatency will tear/flicker more, as it can "detect" idle too early.
+ */
+static double minlatency = 2;
+static double maxlatency = 33;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+char *termname = "st-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ * it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ * running following command:
+ *
+ * stty tabs
+ */
+unsigned int tabspaces = 8;
+
+/* bg opacity */
+float alpha = 0.8;
+
+/* Background opacity */
+float alpha_def;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+
+ /* 8 normal colors */
+ "#0a0a0a", /* black */
+ "#44516d", /* red */
+ "#c95d38", /* green */
+ "#de9e68", /* yellow */
+ "#8b7675", /* blue */
+ "#7e5f8c", /* magenta */
+ "#8c82c2", /* cyan */
+ "#eff7d0", /* white */
+
+ /* 8 bright colors */
+ "#181818", /* black */
+ "#7d87a1", /* red */
+ "#e9673c", /* green */
+ "#e0b18b", /* yellow */
+ "#b9a192", /* blue */
+ "#9a7ebd", /* magenta */
+ "#bccce2", /* cyan */
+ "#ffffff", /* white */
+
+ [255] = 0,
+
+ /* more colors can be added after 255 to use with DefaultXX */
+ "gray90", /* default foreground colour */
+ "black", /* default background colour */
+};
+
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+unsigned int defaultfg = 256;
+unsigned int defaultbg = 257;
+unsigned int defaultcs = 256;
+static unsigned int defaultrcs = 257;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 6;
+
+/*
+ * Default columns and rows numbers
+ */
+
+static unsigned int cols = 80;
+static unsigned int rows = 24;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Color used to display font attributes when fontconfig selected a font which
+ * doesn't match the ones requested.
+ */
+static unsigned int defaultattr = 11;
+
+/*
+ * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forcemousemod = ShiftMask;
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+ /* mask button function argument release */
+ { XK_NO_MOD, Button4, kscrollup, {.i = 1} },
+ { XK_NO_MOD, Button5, kscrolldown, {.i = 1} },
+ { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
+ { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
+ { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
+ { ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} },
+ { XK_ANY_MOD, Button5, ttysend, {.s = "\005"} },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+#define TERMMOD (Mod1Mask|ShiftMask)
+
+static Shortcut shortcuts[] = {
+ /* mask keysym function argument */
+ { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
+ { ControlMask, XK_Print, toggleprinter, {.i = 0} },
+ { ShiftMask, XK_Print, printscreen, {.i = 0} },
+ { XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
+ { ControlMask, XK_equal, zoom, {.f = +1} },
+ { ControlMask, XK_minus, zoom, {.f = -1} },
+ { TERMMOD, XK_Home, zoomreset, {.f = 0} },
+ { MODKEY, XK_c, clipcopy, {.i = 0} },
+ { MODKEY, XK_v, clippaste, {.i = 0} },
+ { TERMMOD, XK_Y, selpaste, {.i = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { ControlMask, XK_k, kscrollup, {.i = 1} },
+ { ControlMask, XK_j, kscrolldown, {.i = 1} },
+ { MODKEY, XK_a, chgalpha, {.f = -1} },
+ { MODKEY, XK_s, chgalpha, {.f = +1} },
+ { MODKEY, XK_d, chgalpha, {.f = 0} },
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * * = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events. By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+ /* keysym mask string appkey appcursor */
+ { XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
+ { XK_KP_End, ControlMask, "\033[J", -1, 0},
+ { XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_KP_End, ShiftMask, "\033[K", -1, 0},
+ { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_KP_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
+ { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
+ { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
+ { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
+ { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
+ { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
+ { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
+ { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
+ { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
+ { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
+ { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
+ { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
+ { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
+ { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
+ { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
+ { XK_Up, ShiftMask, "\033[1;2A", 0, 0},
+ { XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
+ { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0},
+ { XK_Up, ControlMask, "\033[1;5A", 0, 0},
+ { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0},
+ { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0},
+ { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0},
+ { XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_Down, ShiftMask, "\033[1;2B", 0, 0},
+ { XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
+ { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0},
+ { XK_Down, ControlMask, "\033[1;5B", 0, 0},
+ { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0},
+ { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0},
+ { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0},
+ { XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_Left, ShiftMask, "\033[1;2D", 0, 0},
+ { XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
+ { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0},
+ { XK_Left, ControlMask, "\033[1;5D", 0, 0},
+ { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0},
+ { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0},
+ { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0},
+ { XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_Right, ShiftMask, "\033[1;2C", 0, 0},
+ { XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
+ { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0},
+ { XK_Right, ControlMask, "\033[1;5C", 0, 0},
+ { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0},
+ { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0},
+ { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0},
+ { XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
+ { XK_Return, Mod1Mask, "\033\r", 0, 0},
+ { XK_Return, XK_ANY_MOD, "\r", 0, 0},
+ { XK_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
+ { XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
+ { XK_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_End, ControlMask, "\033[J", -1, 0},
+ { XK_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_End, ShiftMask, "\033[K", -1, 0},
+ { XK_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_Prior, ControlMask, "\033[5;5~", 0, 0},
+ { XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_Next, ControlMask, "\033[6;5~", 0, 0},
+ { XK_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_F1, XK_NO_MOD, "\033OP" , 0, 0},
+ { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
+ { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
+ { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
+ { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
+ { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
+ { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0},
+ { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
+ { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
+ { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
+ { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
+ { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
+ { XK_F3, XK_NO_MOD, "\033OR" , 0, 0},
+ { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
+ { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
+ { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
+ { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
+ { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
+ { XK_F4, XK_NO_MOD, "\033OS" , 0, 0},
+ { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
+ { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
+ { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
+ { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
+ { XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
+ { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
+ { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
+ { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
+ { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
+ { XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
+ { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
+ { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
+ { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
+ { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
+ { XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
+ { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
+ { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
+ { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
+ { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
+ { XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
+ { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
+ { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
+ { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
+ { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
+ { XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
+ { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
+ { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
+ { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
+ { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
+ { XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
+ { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
+ { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
+ { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
+ { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
+ { XK_F11, XK_NO_MOD, "\033[23~", 0, 0},
+ { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
+ { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
+ { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
+ { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
+ { XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
+ { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
+ { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
+ { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
+ { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
+ { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
+ { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
+ { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
+ { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
+ { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
+ { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
+ { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
+ { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
+ { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
+ { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
+ { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
+ { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
+ { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
+ { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
+ { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
+ { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
+ { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
+ { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
+ { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
+ { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
+ { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
+ { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
+ { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+ " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
diff --git a/st/config.h.save.2 b/st/config.h.save.2
new file mode 100755
index 0000000..4869423
--- /dev/null
+++ b/st/config.h.save.2
@@ -0,0 +1,486 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char *font = "Terminus-9:antialias=true:autohint=true";
+static int borderpx = 2;
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: scroll and/or utmp
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char *shell = "/bin/sh";
+char *utmp = NULL;
+/* scroll program: to enable use a string like "scroll" */
+char *scroll = NULL;
+char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+char *vtiden = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: L" `'\"()[]{}"
+ */
+wchar_t *worddelimiters = L" ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+int allowaltscreen = 1;
+
+/* allow certain non-interactive (insecure) window operations such as:
+ setting the clipboard text */
+int allowwindowops = 0;
+
+/*
+ * draw latency range in ms - from new content/keypress/etc until drawing.
+ * within this range, st draws when content stops arriving (idle). mostly it's
+ * near minlatency, but it waits longer for slow updates to avoid partial draw.
+ * low minlatency will tear/flicker more, as it can "detect" idle too early.
+ */
+static double minlatency = 2;
+static double maxlatency = 33;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+char *termname = "st-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ * it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ * running following command:
+ *
+ * stty tabs
+ */
+unsigned int tabspaces = 8;
+
+/* bg opacity */
+float alpha = 0.8;
+
+/* Background opacity */
+float alpha_def;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+
+ /* 8 normal colors */
+ "#0a0a0a", /* black */
+ "#44516d", /* red */
+ "#c95d38", /* green */
+ "#de9e68", /* yellow */
+ "#8b7675", /* blue */
+ "#7e5f8c", /* magenta */
+ "#8c82c2", /* cyan */
+ "#eff7d0", /* white */
+
+ /* 8 bright colors */
+ "#181818", /* black */
+ "#7d87a1", /* red */
+ "#e9673c", /* green */
+ "#e0b18b", /* yellow */
+ "#b9a192", /* blue */
+ "#9a7ebd", /* magenta */
+ "#bccce2", /* cyan */
+ "#ffffff", /* white */
+
+ [255] = 0,
+
+ /* more colors can be added after 255 to use with DefaultXX */
+ "gray90", /* default foreground colour */
+ "black", /* default background colour */
+};
+
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+unsigned int defaultfg = 256;
+unsigned int defaultbg = 257;
+unsigned int defaultcs = 256;
+static unsigned int defaultrcs = 257;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 6;
+
+/*
+ * Default columns and rows numbers
+ */
+
+static unsigned int cols = 80;
+static unsigned int rows = 24;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Color used to display font attributes when fontconfig selected a font which
+ * doesn't match the ones requested.
+ */
+static unsigned int defaultattr = 11;
+
+/*
+ * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forcemousemod = ShiftMask;
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+ /* mask button function argument release */
+ { XK_NO_MOD, Button4, kscrollup, {.i = 1} },
+ { XK_NO_MOD, Button5, kscrolldown, {.i = 1} },
+ { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
+ { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
+ { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
+ { ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} },
+ { XK_ANY_MOD, Button5, ttysend, {.s = "\005"} },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+#define TERMMOD (Mod1Mask|ShiftMask)
+
+static Shortcut shortcuts[] = {
+ /* mask keysym function argument */
+ { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
+ { ControlMask, XK_Print, toggleprinter, {.i = 0} },
+ { ShiftMask, XK_Print, printscreen, {.i = 0} },
+ { XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
+ { ControlMask, XK_equal, zoom, {.f = +1} },
+ { ControlMask, XK_minus, zoom, {.f = -1} },
+ { TERMMOD, XK_Home, zoomreset, {.f = 0} },
+ { ControlMask|Shift, XK_c, clipcopy, {.i = 0} },
+ { MODKEY, XK_v, clippaste, {.i = 0} },
+ { TERMMOD, XK_Y, selpaste, {.i = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { ControlMask, XK_k, kscrollup, {.i = 1} },
+ { ControlMask, XK_j, kscrolldown, {.i = 1} },
+ { MODKEY, XK_a, chgalpha, {.f = -1} },
+ { MODKEY, XK_s, chgalpha, {.f = +1} },
+ { MODKEY, XK_d, chgalpha, {.f = 0} },
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * * = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events. By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+ /* keysym mask string appkey appcursor */
+ { XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
+ { XK_KP_End, ControlMask, "\033[J", -1, 0},
+ { XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_KP_End, ShiftMask, "\033[K", -1, 0},
+ { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_KP_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
+ { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
+ { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
+ { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
+ { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
+ { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
+ { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
+ { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
+ { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
+ { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
+ { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
+ { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
+ { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
+ { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
+ { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
+ { XK_Up, ShiftMask, "\033[1;2A", 0, 0},
+ { XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
+ { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0},
+ { XK_Up, ControlMask, "\033[1;5A", 0, 0},
+ { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0},
+ { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0},
+ { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0},
+ { XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_Down, ShiftMask, "\033[1;2B", 0, 0},
+ { XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
+ { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0},
+ { XK_Down, ControlMask, "\033[1;5B", 0, 0},
+ { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0},
+ { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0},
+ { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0},
+ { XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_Left, ShiftMask, "\033[1;2D", 0, 0},
+ { XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
+ { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0},
+ { XK_Left, ControlMask, "\033[1;5D", 0, 0},
+ { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0},
+ { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0},
+ { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0},
+ { XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_Right, ShiftMask, "\033[1;2C", 0, 0},
+ { XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
+ { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0},
+ { XK_Right, ControlMask, "\033[1;5C", 0, 0},
+ { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0},
+ { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0},
+ { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0},
+ { XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
+ { XK_Return, Mod1Mask, "\033\r", 0, 0},
+ { XK_Return, XK_ANY_MOD, "\r", 0, 0},
+ { XK_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
+ { XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
+ { XK_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_End, ControlMask, "\033[J", -1, 0},
+ { XK_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_End, ShiftMask, "\033[K", -1, 0},
+ { XK_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_Prior, ControlMask, "\033[5;5~", 0, 0},
+ { XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_Next, ControlMask, "\033[6;5~", 0, 0},
+ { XK_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_F1, XK_NO_MOD, "\033OP" , 0, 0},
+ { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
+ { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
+ { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
+ { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
+ { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
+ { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0},
+ { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
+ { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
+ { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
+ { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
+ { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
+ { XK_F3, XK_NO_MOD, "\033OR" , 0, 0},
+ { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
+ { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
+ { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
+ { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
+ { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
+ { XK_F4, XK_NO_MOD, "\033OS" , 0, 0},
+ { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
+ { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
+ { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
+ { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
+ { XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
+ { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
+ { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
+ { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
+ { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
+ { XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
+ { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
+ { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
+ { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
+ { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
+ { XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
+ { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
+ { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
+ { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
+ { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
+ { XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
+ { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
+ { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
+ { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
+ { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
+ { XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
+ { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
+ { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
+ { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
+ { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
+ { XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
+ { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
+ { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
+ { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
+ { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
+ { XK_F11, XK_NO_MOD, "\033[23~", 0, 0},
+ { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
+ { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
+ { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
+ { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
+ { XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
+ { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
+ { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
+ { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
+ { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
+ { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
+ { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
+ { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
+ { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
+ { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
+ { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
+ { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
+ { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
+ { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
+ { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
+ { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
+ { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
+ { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
+ { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
+ { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
+ { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
+ { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
+ { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
+ { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
+ { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
+ { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
+ { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
+ { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+ " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
diff --git a/st/config.h.save.3 b/st/config.h.save.3
new file mode 100755
index 0000000..e2169a7
--- /dev/null
+++ b/st/config.h.save.3
@@ -0,0 +1,486 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char *font = "Terminus-9:antialias=true:autohint=true";
+static int borderpx = 2;
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: scroll and/or utmp
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char *shell = "/bin/sh";
+char *utmp = NULL;
+/* scroll program: to enable use a string like "scroll" */
+char *scroll = NULL;
+char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+char *vtiden = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: L" `'\"()[]{}"
+ */
+wchar_t *worddelimiters = L" ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+int allowaltscreen = 1;
+
+/* allow certain non-interactive (insecure) window operations such as:
+ setting the clipboard text */
+int allowwindowops = 0;
+
+/*
+ * draw latency range in ms - from new content/keypress/etc until drawing.
+ * within this range, st draws when content stops arriving (idle). mostly it's
+ * near minlatency, but it waits longer for slow updates to avoid partial draw.
+ * low minlatency will tear/flicker more, as it can "detect" idle too early.
+ */
+static double minlatency = 2;
+static double maxlatency = 33;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+char *termname = "st-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ * it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ * running following command:
+ *
+ * stty tabs
+ */
+unsigned int tabspaces = 8;
+
+/* bg opacity */
+float alpha = 0.8;
+
+/* Background opacity */
+float alpha_def;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+
+ /* 8 normal colors */
+ "#333e21", /* black */
+ "#757849", /* red */
+ "#FF432A", /* green */
+ "#c83e72", /* yellow */
+ "#448C2C", /* blue */
+ "#7d5f5f", /* magenta */
+ "#bd8c77", /* cyan */
+ "#efdceb", /* white */
+
+ /* 8 bright colors */
+ "#686e50", /* black */
+ "#A6AA6A", /* red */
+ "#fa6d5a", /* green */
+ "#d3658e", /* yellow */
+ "#80BD6C", /* blue */
+ "#B38887", /* magenta */
+ "#f0bfaa", /* cyan */
+ "#ffffff", /* white */
+
+ [255] = 0,
+
+ /* more colors can be added after 255 to use with DefaultXX */
+ "gray90", /* default foreground colour */
+ "black", /* default background colour */
+};
+
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+unsigned int defaultfg = 256;
+unsigned int defaultbg = 257;
+unsigned int defaultcs = 256;
+static unsigned int defaultrcs = 257;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 6;
+
+/*
+ * Default columns and rows numbers
+ */
+
+static unsigned int cols = 80;
+static unsigned int rows = 24;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Color used to display font attributes when fontconfig selected a font which
+ * doesn't match the ones requested.
+ */
+static unsigned int defaultattr = 11;
+
+/*
+ * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forcemousemod = ShiftMask;
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+ /* mask button function argument release */
+ { XK_NO_MOD, Button4, kscrollup, {.i = 1} },
+ { XK_NO_MOD, Button5, kscrolldown, {.i = 1} },
+ { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
+ { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
+ { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
+ { ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} },
+ { XK_ANY_MOD, Button5, ttysend, {.s = "\005"} },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+#define TERMMOD (Mod1Mask|ShiftMask)
+
+static Shortcut shortcuts[] = {
+ /* mask keysym function argument */
+ { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
+ { ControlMask, XK_Print, toggleprinter, {.i = 0} },
+ { ShiftMask, XK_Print, printscreen, {.i = 0} },
+ { XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
+ { ControlMask, XK_equal, zoom, {.f = +1} },
+ { ControlMask, XK_minus, zoom, {.f = -1} },
+ { TERMMOD, XK_Home, zoomreset, {.f = 0} },
+ { MODKEY, XK_c, clipcopy, {.i = 0} },
+ { MODKEY, XK_v, clippaste, {.i = 0} },
+ { TERMMOD, XK_Y, selpaste, {.i = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { ShiftMask, XK_k, kscrollup, {.i = 1} },
+ { ShiftMask, XK_j, kscrolldown, {.i = 1} },
+ { MODKEY, XK_a, chgalpha, {.f = -1} },
+ { MODKEY, XK_s, chgalpha, {.f = +1} },
+ { MODKEY, XK_d, chgalpha, {.f = 0} },
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * * = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events. By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+ /* keysym mask string appkey appcursor */
+ { XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
+ { XK_KP_End, ControlMask, "\033[J", -1, 0},
+ { XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_KP_End, ShiftMask, "\033[K", -1, 0},
+ { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_KP_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
+ { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
+ { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
+ { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
+ { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
+ { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
+ { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
+ { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
+ { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
+ { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
+ { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
+ { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
+ { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
+ { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
+ { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
+ { XK_Up, ShiftMask, "\033[1;2A", 0, 0},
+ { XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
+ { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0},
+ { XK_Up, ControlMask, "\033[1;5A", 0, 0},
+ { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0},
+ { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0},
+ { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0},
+ { XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
+ { XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
+ { XK_Down, ShiftMask, "\033[1;2B", 0, 0},
+ { XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
+ { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0},
+ { XK_Down, ControlMask, "\033[1;5B", 0, 0},
+ { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0},
+ { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0},
+ { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0},
+ { XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
+ { XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
+ { XK_Left, ShiftMask, "\033[1;2D", 0, 0},
+ { XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
+ { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0},
+ { XK_Left, ControlMask, "\033[1;5D", 0, 0},
+ { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0},
+ { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0},
+ { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0},
+ { XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
+ { XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
+ { XK_Right, ShiftMask, "\033[1;2C", 0, 0},
+ { XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
+ { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0},
+ { XK_Right, ControlMask, "\033[1;5C", 0, 0},
+ { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0},
+ { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0},
+ { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0},
+ { XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
+ { XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
+ { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
+ { XK_Return, Mod1Mask, "\033\r", 0, 0},
+ { XK_Return, XK_ANY_MOD, "\r", 0, 0},
+ { XK_Insert, ShiftMask, "\033[4l", -1, 0},
+ { XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
+ { XK_Insert, ControlMask, "\033[L", -1, 0},
+ { XK_Insert, ControlMask, "\033[2;5~", +1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
+ { XK_Delete, ControlMask, "\033[M", -1, 0},
+ { XK_Delete, ControlMask, "\033[3;5~", +1, 0},
+ { XK_Delete, ShiftMask, "\033[2K", -1, 0},
+ { XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
+ { XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
+ { XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
+ { XK_Home, ShiftMask, "\033[2J", 0, -1},
+ { XK_Home, ShiftMask, "\033[1;2H", 0, +1},
+ { XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
+ { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
+ { XK_End, ControlMask, "\033[J", -1, 0},
+ { XK_End, ControlMask, "\033[1;5F", +1, 0},
+ { XK_End, ShiftMask, "\033[K", -1, 0},
+ { XK_End, ShiftMask, "\033[1;2F", +1, 0},
+ { XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
+ { XK_Prior, ControlMask, "\033[5;5~", 0, 0},
+ { XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
+ { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
+ { XK_Next, ControlMask, "\033[6;5~", 0, 0},
+ { XK_Next, ShiftMask, "\033[6;2~", 0, 0},
+ { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
+ { XK_F1, XK_NO_MOD, "\033OP" , 0, 0},
+ { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
+ { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
+ { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
+ { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
+ { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
+ { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0},
+ { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
+ { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
+ { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
+ { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
+ { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
+ { XK_F3, XK_NO_MOD, "\033OR" , 0, 0},
+ { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
+ { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
+ { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
+ { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
+ { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
+ { XK_F4, XK_NO_MOD, "\033OS" , 0, 0},
+ { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
+ { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
+ { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
+ { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
+ { XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
+ { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
+ { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
+ { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
+ { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
+ { XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
+ { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
+ { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
+ { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
+ { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
+ { XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
+ { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
+ { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
+ { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
+ { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
+ { XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
+ { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
+ { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
+ { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
+ { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
+ { XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
+ { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
+ { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
+ { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
+ { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
+ { XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
+ { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
+ { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
+ { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
+ { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
+ { XK_F11, XK_NO_MOD, "\033[23~", 0, 0},
+ { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
+ { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
+ { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
+ { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
+ { XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
+ { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
+ { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
+ { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
+ { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
+ { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
+ { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
+ { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
+ { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
+ { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
+ { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
+ { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
+ { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
+ { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
+ { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
+ { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
+ { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
+ { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
+ { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
+ { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
+ { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
+ { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
+ { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
+ { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
+ { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
+ { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
+ { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
+ { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+ " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
diff --git a/st/config.mk b/st/config.mk
new file mode 100755
index 0000000..1261566
--- /dev/null
+++ b/st/config.mk
@@ -0,0 +1,38 @@
+# st version
+VERSION = 0.9.2
+
+# Customize below to fit your system
+
+# paths
+PREFIX = /usr/local
+MANPREFIX = $(PREFIX)/share/man
+
+X11INC = /usr/X11R6/include
+X11LIB = /usr/X11R6/lib
+
+PKG_CONFIG = pkg-config
+
+# includes and libs
+INCS = -I$(X11INC) \
+ `$(PKG_CONFIG) --cflags fontconfig` \
+ `$(PKG_CONFIG) --cflags freetype2` \
+ `$(PKG_CONFIG) --cflags harfbuzz`
+LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender \
+ `$(PKG_CONFIG) --libs fontconfig` \
+ `$(PKG_CONFIG) --libs freetype2` \
+ `$(PKG_CONFIG) --libs harfbuzz`
+
+# flags
+STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
+STCFLAGS = $(INCS) $(STCPPFLAGS) $(CPPFLAGS) $(CFLAGS)
+STLDFLAGS = $(LIBS) $(LDFLAGS)
+
+# OpenBSD:
+#CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
+#LIBS = -L$(X11LIB) -lm -lX11 -lutil -lXft \
+# `$(PKG_CONFIG) --libs fontconfig` \
+# `$(PKG_CONFIG) --libs freetype2`
+#MANPREFIX = ${PREFIX}/man
+
+# compiler and linker
+CC = gcc
diff --git a/st/graphics.c b/st/graphics.c
new file mode 100755
index 0000000..64e6fe0
--- /dev/null
+++ b/st/graphics.c
@@ -0,0 +1,3812 @@
+/* The MIT License
+
+ Copyright (c) 2021-2024 Sergei Grechanik <sergei.grechanik@gmail.com>
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+*/
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// This file implements a subset of the kitty graphics protocol.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#define _POSIX_C_SOURCE 200809L
+
+#include <zlib.h>
+#include <Imlib2.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/Xrender.h>
+#include <assert.h>
+#include <ctype.h>
+#include <spawn.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "graphics.h"
+#include "khash.h"
+#include "kvec.h"
+
+extern char **environ;
+
+#define MAX_FILENAME_SIZE 256
+#define MAX_INFO_LEN 256
+#define MAX_IMAGE_RECTS 20
+
+/// The type used in this file to represent time. Used both for time differences
+/// and absolute times (as milliseconds since an arbitrary point in time, see
+/// `initialization_time`).
+typedef int64_t Milliseconds;
+
+enum ScaleMode {
+ SCALE_MODE_UNSET = 0,
+ /// Stretch or shrink the image to fill the box, ignoring aspect ratio.
+ SCALE_MODE_FILL = 1,
+ /// Preserve aspect ratio and fit to width or to height so that the
+ /// whole image is visible.
+ SCALE_MODE_CONTAIN = 2,
+ /// Do not scale. The image may be cropped if the box is too small.
+ SCALE_MODE_NONE = 3,
+ /// Do not scale, unless the box is too small, in which case the image
+ /// will be shrunk like with `SCALE_MODE_CONTAIN`.
+ SCALE_MODE_NONE_OR_CONTAIN = 4,
+};
+
+enum AnimationState {
+ ANIMATION_STATE_UNSET = 0,
+ /// The animation is stopped. Display the current frame, but don't
+ /// advance to the next one.
+ ANIMATION_STATE_STOPPED = 1,
+ /// Run the animation to then end, then wait for the next frame.
+ ANIMATION_STATE_LOADING = 2,
+ /// Run the animation in a loop.
+ ANIMATION_STATE_LOOPING = 3,
+};
+
+/// The status of an image. Each image uploaded to the terminal is cached on
+/// disk, then it is loaded to ram when needed.
+enum ImageStatus {
+ STATUS_UNINITIALIZED = 0,
+ STATUS_UPLOADING = 1,
+ STATUS_UPLOADING_ERROR = 2,
+ STATUS_UPLOADING_SUCCESS = 3,
+ STATUS_RAM_LOADING_ERROR = 4,
+ STATUS_RAM_LOADING_IN_PROGRESS = 5,
+ STATUS_RAM_LOADING_SUCCESS = 6,
+};
+
+const char *image_status_strings[6] = {
+ "STATUS_UNINITIALIZED",
+ "STATUS_UPLOADING",
+ "STATUS_UPLOADING_ERROR",
+ "STATUS_UPLOADING_SUCCESS",
+ "STATUS_RAM_LOADING_ERROR",
+ "STATUS_RAM_LOADING_SUCCESS",
+};
+
+enum ImageUploadingFailure {
+ ERROR_OVER_SIZE_LIMIT = 1,
+ ERROR_CANNOT_OPEN_CACHED_FILE = 2,
+ ERROR_UNEXPECTED_SIZE = 3,
+ ERROR_CANNOT_COPY_FILE = 4,
+};
+
+const char *image_uploading_failure_strings[5] = {
+ "NO_ERROR",
+ "ERROR_OVER_SIZE_LIMIT",
+ "ERROR_CANNOT_OPEN_CACHED_FILE",
+ "ERROR_UNEXPECTED_SIZE",
+ "ERROR_CANNOT_COPY_FILE",
+};
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// We use the following structures to represent images and placements:
+//
+// - Image: this is the main structure representing an image, usually created
+// by actions 'a=t', 'a=T`. Each image has an id (image id aka client id,
+// specified by 'i='). An image may have multiple frames (ImageFrame) and
+// placements (ImagePlacement).
+//
+// - ImageFrame: represents a single frame of an image, usually created by
+// the action 'a=f' (and the first frame is created with the image itself).
+// Each frame has an index and also:
+// - a file containing the frame data (considered to be "on disk", although
+// it's probably in tmpfs),
+// - an imlib object containing the fully composed frame (i.e. the frame
+// data from the file composed onto the background frame or color). It is
+// not ready for display yet, because it needs to be scaled and uploaded
+// to the X server.
+//
+// - ImagePlacement: represents a placement of an image, created by 'a=p' and
+// 'a=T'. Each placement has an id (placement id, specified by 'p='). Also
+// each placement has an array of pixmaps: one for each frame of the image.
+// Each pixmap is a scaled and uploaded image ready to be displayed.
+//
+// Images are store in the `images` hash table, mapping image ids to Image
+// objects (allocated on the heap).
+//
+// Placements are stored in the `placements` hash table of each Image object,
+// mapping placement ids to ImagePlacement objects (also allocated on the heap).
+//
+// ImageFrames are stored in the `first_frame` field and in the
+// `frames_beyond_the_first` array of each Image object. They are stored by
+// value, so ImageFrame pointer may be invalidated when frames are
+// added/deleted, be careful.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+struct Image;
+struct ImageFrame;
+struct ImagePlacement;
+
+KHASH_MAP_INIT_INT(id2image, struct Image *)
+KHASH_MAP_INIT_INT(id2placement, struct ImagePlacement *)
+
+typedef struct ImageFrame {
+ /// The image this frame belongs to.
+ struct Image *image;
+ /// The 1-based index of the frame. Zero if the frame isn't initialized.
+ int index;
+ /// The last time when the frame was displayed or otherwise touched.
+ Milliseconds atime;
+ /// The background color of the frame in the 0xRRGGBBAA format.
+ uint32_t background_color;
+ /// The index of the background frame. Zero to use the color instead.
+ int background_frame_index;
+ /// The duration of the frame in milliseconds.
+ int gap;
+ /// The expected size of the frame image file (specified with 'S='),
+ /// used to check if uploading succeeded.
+ unsigned expected_size;
+ /// Format specification (see the `f=` key).
+ int format;
+ /// Pixel width and height of the non-composed (on-disk) frame data. May
+ /// differ from the image (i.e. first frame) dimensions.
+ int data_pix_width, data_pix_height;
+ /// The offset of the frame relative to the first frame.
+ int x, y;
+ /// Compression mode (see the `o=` key).
+ char compression;
+ /// The status (see `ImageStatus`).
+ char status;
+ /// The reason of uploading failure (see `ImageUploadingFailure`).
+ char uploading_failure;
+ /// Whether failures and successes should be reported ('q=').
+ char quiet;
+ /// Whether to blend the frame with the background or replace it.
+ char blend;
+ /// The file corresponding to the on-disk cache, used when uploading.
+ FILE *open_file;
+ /// The size of the corresponding file cached on disk.
+ unsigned disk_size;
+ /// The imlib object containing the fully composed frame. It's not
+ /// scaled for screen display yet.
+ Imlib_Image imlib_object;
+} ImageFrame;
+
+typedef struct Image {
+ /// The client id (the one specified with 'i='). Must be nonzero.
+ uint32_t image_id;
+ /// The client id specified in the query command (`a=q`). This one must
+ /// be used to create the response if it's non-zero.
+ uint32_t query_id;
+ /// The number specified in the transmission command (`I=`). If
+ /// non-zero, it may be used to identify the image instead of the
+ /// image_id, and it also should be mentioned in responses.
+ uint32_t image_number;
+ /// The last time when the image was displayed or otherwise touched.
+ Milliseconds atime;
+ /// The total duration of the animation in milliseconds.
+ int total_duration;
+ /// The total size of cached image files for all frames.
+ int total_disk_size;
+ /// The global index of the creation command. Used to decide which image
+ /// is newer if they have the same image number.
+ uint64_t global_command_index;
+ /// The 1-based index of the currently displayed frame.
+ int current_frame;
+ /// The state of the animation, see `AnimationState`.
+ char animation_state;
+ /// The absolute time that is assumed to be the start of the current
+ /// frame (in ms since initialization).
+ Milliseconds current_frame_time;
+ /// The absolute time of the last redraw (in ms since initialization).
+ /// Used to check whether it's the first time we draw the image in the
+ /// current redraw cycle.
+ Milliseconds last_redraw;
+ /// The absolute time of the next redraw (in ms since initialization).
+ /// 0 means no redraw is scheduled.
+ Milliseconds next_redraw;
+ /// The unscaled pixel width and height of the image. Usually inherited
+ /// from the first frame.
+ int pix_width, pix_height;
+ /// The first frame.
+ ImageFrame first_frame;
+ /// The array of frames beyond the first one.
+ kvec_t(ImageFrame) frames_beyond_the_first;
+ /// Image placements.
+ khash_t(id2placement) *placements;
+ /// The default placement.
+ uint32_t default_placement;
+ /// The initial placement id, specified with the transmission command,
+ /// used to report success or failure.
+ uint32_t initial_placement_id;
+} Image;
+
+typedef struct ImagePlacement {
+ /// The image this placement belongs to.
+ Image *image;
+ /// The id of the placement. Must be nonzero.
+ uint32_t placement_id;
+ /// The last time when the placement was displayed or otherwise touched.
+ Milliseconds atime;
+ /// The 1-based index of the protected pixmap. We protect a pixmap in
+ /// gr_load_pixmap to avoid unloading it right after it was loaded.
+ int protected_frame;
+ /// Whether the placement is used only for Unicode placeholders.
+ char virtual;
+ /// The scaling mode (see `ScaleMode`).
+ char scale_mode;
+ /// Height and width in cells.
+ uint16_t rows, cols;
+ /// Top-left corner of the source rectangle ('x=' and 'y=').
+ int src_pix_x, src_pix_y;
+ /// Height and width of the source rectangle (zero if full image).
+ int src_pix_width, src_pix_height;
+ /// The image appropriately scaled and uploaded to the X server. This
+ /// pixmap is premultiplied by alpha.
+ Pixmap first_pixmap;
+ /// The array of pixmaps beyond the first one.
+ kvec_t(Pixmap) pixmaps_beyond_the_first;
+ /// The dimensions of the cell used to scale the image. If cell
+ /// dimensions are changed (font change), the image will be rescaled.
+ uint16_t scaled_cw, scaled_ch;
+ /// If true, do not move the cursor when displaying this placement
+ /// (non-virtual placements only).
+ char do_not_move_cursor;
+} ImagePlacement;
+
+/// A rectangular piece of an image to be drawn.
+typedef struct {
+ uint32_t image_id;
+ uint32_t placement_id;
+ /// The position of the rectangle in pixels.
+ int screen_x_pix, screen_y_pix;
+ /// The starting row on the screen.
+ int screen_y_row;
+ /// The part of the whole image to be drawn, in cells. Starts are
+ /// zero-based, ends are exclusive.
+ int img_start_col, img_end_col, img_start_row, img_end_row;
+ /// The current cell width and height in pixels.
+ int cw, ch;
+ /// Whether colors should be inverted.
+ int reverse;
+} ImageRect;
+
+/// Executes `code` for each frame of an image. Example:
+///
+/// foreach_frame(image, frame, {
+/// printf("Frame %d\n", frame->index);
+/// });
+///
+#define foreach_frame(image, framevar, code) { size_t __i; \
+ for (__i = 0; __i <= kv_size((image).frames_beyond_the_first); ++__i) { \
+ ImageFrame *framevar = \
+ __i == 0 ? &(image).first_frame \
+ : &kv_A((image).frames_beyond_the_first, __i - 1); \
+ code; \
+ } }
+
+/// Executes `code` for each pixmap of a placement. Example:
+///
+/// foreach_pixmap(placement, pixmap, {
+/// ...
+/// });
+///
+#define foreach_pixmap(placement, pixmapvar, code) { size_t __i; \
+ for (__i = 0; __i <= kv_size((placement).pixmaps_beyond_the_first); ++__i) { \
+ Pixmap pixmapvar = \
+ __i == 0 ? (placement).first_pixmap \
+ : kv_A((placement).pixmaps_beyond_the_first, __i - 1); \
+ code; \
+ } }
+
+
+static Image *gr_find_image(uint32_t image_id);
+static void gr_get_frame_filename(ImageFrame *frame, char *out, size_t max_len);
+static void gr_delete_image(Image *img);
+static void gr_check_limits();
+static char *gr_base64dec(const char *src, size_t *size);
+static void sanitize_str(char *str, size_t max_len);
+static const char *sanitized_filename(const char *str);
+
+/// The array of image rectangles to draw. It is reset each frame.
+static ImageRect image_rects[MAX_IMAGE_RECTS] = {{0}};
+/// The known images (including the ones being uploaded).
+static khash_t(id2image) *images = NULL;
+/// The total number of placements in all images.
+static unsigned total_placement_count = 0;
+/// The total size of all image files stored in the on-disk cache.
+static int64_t images_disk_size = 0;
+/// The total size of all images and placements loaded into ram.
+static int64_t images_ram_size = 0;
+/// The id of the last loaded image.
+static uint32_t last_image_id = 0;
+/// Current cell width and heigh in pixels.
+static int current_cw = 0, current_ch = 0;
+/// The id of the currently uploaded image (when using direct uploading).
+static uint32_t current_upload_image_id = 0;
+/// The index of the frame currently being uploaded.
+static int current_upload_frame_index = 0;
+/// The time when the graphics module was initialized.
+static struct timespec initialization_time = {0};
+/// The time when the current frame drawing started, used for debugging fps and
+/// to calculate the current frame for animations.
+static Milliseconds drawing_start_time;
+/// The global index of the current command.
+static uint64_t global_command_counter = 0;
+/// The next redraw times for each row of the terminal. Used for animations.
+/// 0 means no redraw is scheduled.
+static kvec_t(Milliseconds) next_redraw_times = {0, 0, NULL};
+/// The number of files loaded in the current redraw cycle.
+static int this_redraw_cycle_loaded_files = 0;
+/// The number of pixmaps loaded in the current redraw cycle.
+static int this_redraw_cycle_loaded_pixmaps = 0;
+
+/// The directory where the cache files are stored.
+static char cache_dir[MAX_FILENAME_SIZE - 16];
+
+/// The table used for color inversion.
+static unsigned char reverse_table[256];
+
+// Declared in the header.
+GraphicsDebugMode graphics_debug_mode = GRAPHICS_DEBUG_NONE;
+char graphics_display_images = 1;
+GraphicsCommandResult graphics_command_result = {0};
+int graphics_next_redraw_delay = INT_MAX;
+
+// Defined in config.h
+extern const char graphics_cache_dir_template[];
+extern unsigned graphics_max_single_image_file_size;
+extern unsigned graphics_total_file_cache_size;
+extern unsigned graphics_max_single_image_ram_size;
+extern unsigned graphics_max_total_ram_size;
+extern unsigned graphics_max_total_placements;
+extern double graphics_excess_tolerance_ratio;
+extern unsigned graphics_animation_min_delay;
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Basic helpers.
+////////////////////////////////////////////////////////////////////////////////
+
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) < (b) ? (b) : (a))
+
+/// Returns the difference between `end` and `start` in milliseconds.
+static int64_t gr_timediff_ms(const struct timespec *end,
+ const struct timespec *start) {
+ return (end->tv_sec - start->tv_sec) * 1000 +
+ (end->tv_nsec - start->tv_nsec) / 1000000;
+}
+
+/// Returns the current time in milliseconds since the initialization.
+static Milliseconds gr_now_ms() {
+ struct timespec now;
+ clock_gettime(CLOCK_MONOTONIC, &now);
+ return gr_timediff_ms(&now, &initialization_time);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Logging.
+////////////////////////////////////////////////////////////////////////////////
+
+#define GR_LOG(...) \
+ do { if(graphics_debug_mode) fprintf(stderr, __VA_ARGS__); } while(0)
+
+////////////////////////////////////////////////////////////////////////////////
+// Basic image management functions (create, delete, find, etc).
+////////////////////////////////////////////////////////////////////////////////
+
+/// Returns the 1-based index of the last frame. Note that you may want to use
+/// `gr_last_uploaded_frame_index` instead since the last frame may be not
+/// fully uploaded yet.
+static inline int gr_last_frame_index(Image *img) {
+ return kv_size(img->frames_beyond_the_first) + 1;
+}
+
+/// Returns the frame with the given index. Returns NULL if the index is out of
+/// bounds. The index is 1-based.
+static ImageFrame *gr_get_frame(Image *img, int index) {
+ if (!img)
+ return NULL;
+ if (index == 1)
+ return &img->first_frame;
+ if (2 <= index && index <= gr_last_frame_index(img))
+ return &kv_A(img->frames_beyond_the_first, index - 2);
+ return NULL;
+}
+
+/// Returns the last frame of the image. Returns NULL if `img` is NULL.
+static ImageFrame *gr_get_last_frame(Image *img) {
+ if (!img)
+ return NULL;
+ return gr_get_frame(img, gr_last_frame_index(img));
+}
+
+/// Returns the 1-based index of the last frame or the second-to-last frame if
+/// the last frame is not fully uploaded yet.
+static inline int gr_last_uploaded_frame_index(Image *img) {
+ int last_index = gr_last_frame_index(img);
+ if (last_index > 1 &&
+ gr_get_frame(img, last_index)->status < STATUS_UPLOADING_SUCCESS)
+ return last_index - 1;
+ return last_index;
+}
+
+/// Returns the pixmap for the frame with the given index. Returns 0 if the
+/// index is out of bounds. The index is 1-based.
+static Pixmap gr_get_frame_pixmap(ImagePlacement *placement, int index) {
+ if (index == 1)
+ return placement->first_pixmap;
+ if (2 <= index &&
+ index <= kv_size(placement->pixmaps_beyond_the_first) + 1)
+ return kv_A(placement->pixmaps_beyond_the_first, index - 2);
+ return 0;
+}
+
+/// Sets the pixmap for the frame with the given index. The index is 1-based.
+/// The array of pixmaps is resized if needed.
+static void gr_set_frame_pixmap(ImagePlacement *placement, int index,
+ Pixmap pixmap) {
+ if (index == 1) {
+ placement->first_pixmap = pixmap;
+ return;
+ }
+ // Resize the array if needed.
+ size_t old_size = kv_size(placement->pixmaps_beyond_the_first);
+ if (old_size < index - 1) {
+ kv_a(Pixmap, placement->pixmaps_beyond_the_first, index - 2);
+ for (size_t i = old_size; i < index - 1; i++)
+ kv_A(placement->pixmaps_beyond_the_first, i) = 0;
+ }
+ kv_A(placement->pixmaps_beyond_the_first, index - 2) = pixmap;
+}
+
+/// Finds the image corresponding to the client id. Returns NULL if cannot find.
+static Image *gr_find_image(uint32_t image_id) {
+ khiter_t k = kh_get(id2image, images, image_id);
+ if (k == kh_end(images))
+ return NULL;
+ Image *res = kh_value(images, k);
+ return res;
+}
+
+/// Finds the newest image corresponding to the image number. Returns NULL if
+/// cannot find.
+static Image *gr_find_image_by_number(uint32_t image_number) {
+ if (image_number == 0)
+ return NULL;
+ Image *newest_img = NULL;
+ Image *img = NULL;
+ kh_foreach_value(images, img, {
+ if (img->image_number == image_number &&
+ (!newest_img || newest_img->global_command_index <
+ img->global_command_index))
+ newest_img = img;
+ });
+ if (!newest_img)
+ GR_LOG("Image number %u not found\n", image_number);
+ else
+ GR_LOG("Found image number %u, its id is %u\n", image_number,
+ img->image_id);
+ return newest_img;
+}
+
+/// Finds the placement corresponding to the id. If the placement id is 0,
+/// returns some default placement.
+static ImagePlacement *gr_find_placement(Image *img, uint32_t placement_id) {
+ if (!img)
+ return NULL;
+ if (placement_id == 0) {
+ // Try to get the default placement.
+ ImagePlacement *dflt = NULL;
+ if (img->default_placement != 0)
+ dflt = gr_find_placement(img, img->default_placement);
+ if (dflt)
+ return dflt;
+ // If there is no default placement, return the first one and
+ // set it as the default.
+ kh_foreach_value(img->placements, dflt, {
+ img->default_placement = dflt->placement_id;
+ return dflt;
+ });
+ // If there are no placements, return NULL.
+ return NULL;
+ }
+ khiter_t k = kh_get(id2placement, img->placements, placement_id);
+ if (k == kh_end(img->placements))
+ return NULL;
+ ImagePlacement *res = kh_value(img->placements, k);
+ return res;
+}
+
+/// Finds the placement by image id and placement id.
+static ImagePlacement *gr_find_image_and_placement(uint32_t image_id,
+ uint32_t placement_id) {
+ return gr_find_placement(gr_find_image(image_id), placement_id);
+}
+
+/// Writes the name of the on-disk cache file to `out`. `max_len` should be the
+/// size of `out`. The name will be something like
+/// "/tmp/st-images-xxx/img-ID-FRAME".
+static void gr_get_frame_filename(ImageFrame *frame, char *out,
+ size_t max_len) {
+ snprintf(out, max_len, "%s/img-%.3u-%.3u", cache_dir,
+ frame->image->image_id, frame->index);
+}
+
+/// Returns the (estimation) of the RAM size used by the frame right now.
+static unsigned gr_frame_current_ram_size(ImageFrame *frame) {
+ if (!frame->imlib_object)
+ return 0;
+ return (unsigned)frame->image->pix_width * frame->image->pix_height * 4;
+}
+
+/// Returns the (estimation) of the RAM size used by a single frame pixmap.
+static unsigned gr_placement_single_frame_ram_size(ImagePlacement *placement) {
+ return (unsigned)placement->rows * placement->cols *
+ placement->scaled_ch * placement->scaled_cw * 4;
+}
+
+/// Returns the (estimation) of the RAM size used by the placemenet right now.
+static unsigned gr_placement_current_ram_size(ImagePlacement *placement) {
+ unsigned single_frame_size =
+ gr_placement_single_frame_ram_size(placement);
+ unsigned result = 0;
+ foreach_pixmap(*placement, pixmap, {
+ if (pixmap)
+ result += single_frame_size;
+ });
+ return result;
+}
+
+/// Unload the frame from RAM (i.e. delete the corresponding imlib object).
+/// If the on-disk file of the frame is preserved, it can be reloaded later.
+static void gr_unload_frame(ImageFrame *frame) {
+ if (!frame->imlib_object)
+ return;
+
+ unsigned frame_ram_size = gr_frame_current_ram_size(frame);
+ images_ram_size -= frame_ram_size;
+
+ imlib_context_set_image(frame->imlib_object);
+ imlib_free_image_and_decache();
+ frame->imlib_object = NULL;
+
+ GR_LOG("After unloading image %u frame %u (atime %ld ms ago) "
+ "ram: %ld KiB (- %u KiB)\n",
+ frame->image->image_id, frame->index,
+ drawing_start_time - frame->atime, images_ram_size / 1024,
+ frame_ram_size / 1024);
+}
+
+/// Unload all frames of the image.
+static void gr_unload_all_frames(Image *img) {
+ foreach_frame(*img, frame, {
+ gr_unload_frame(frame);
+ });
+}
+
+/// Unload the placement from RAM (i.e. free all of the corresponding pixmaps).
+/// If the on-disk files or imlib objects of the corresponding image are
+/// preserved, the placement can be reloaded later.
+static void gr_unload_placement(ImagePlacement *placement) {
+ unsigned placement_ram_size = gr_placement_current_ram_size(placement);
+ images_ram_size -= placement_ram_size;
+
+ Display *disp = imlib_context_get_display();
+ foreach_pixmap(*placement, pixmap, {
+ if (pixmap)
+ XFreePixmap(disp, pixmap);
+ });
+
+ placement->first_pixmap = 0;
+ placement->pixmaps_beyond_the_first.n = 0;
+ placement->scaled_ch = placement->scaled_cw = 0;
+
+ GR_LOG("After unloading placement %u/%u (atime %ld ms ago) "
+ "ram: %ld KiB (- %u KiB)\n",
+ placement->image->image_id, placement->placement_id,
+ drawing_start_time - placement->atime, images_ram_size / 1024,
+ placement_ram_size / 1024);
+}
+
+/// Unload a single pixmap of the placement from RAM.
+static void gr_unload_pixmap(ImagePlacement *placement, int frameidx) {
+ Pixmap pixmap = gr_get_frame_pixmap(placement, frameidx);
+ if (!pixmap)
+ return;
+
+ Display *disp = imlib_context_get_display();
+ XFreePixmap(disp, pixmap);
+ gr_set_frame_pixmap(placement, frameidx, 0);
+ images_ram_size -= gr_placement_single_frame_ram_size(placement);
+
+ GR_LOG("After unloading pixmap %ld of "
+ "placement %u/%u (atime %ld ms ago) "
+ "frame %u (atime %ld ms ago) "
+ "ram: %ld KiB (- %u KiB)\n",
+ pixmap, placement->image->image_id, placement->placement_id,
+ drawing_start_time - placement->atime, frameidx,
+ drawing_start_time -
+ gr_get_frame(placement->image, frameidx)->atime,
+ images_ram_size / 1024,
+ gr_placement_single_frame_ram_size(placement) / 1024);
+}
+
+/// Deletes the on-disk cache file corresponding to the frame. The in-ram image
+/// object (if it exists) is not deleted, placements are not unloaded either.
+static void gr_delete_imagefile(ImageFrame *frame) {
+ // It may still be being loaded. Close the file in this case.
+ if (frame->open_file) {
+ fclose(frame->open_file);
+ frame->open_file = NULL;
+ }
+
+ if (frame->disk_size == 0)
+ return;
+
+ char filename[MAX_FILENAME_SIZE];
+ gr_get_frame_filename(frame, filename, MAX_FILENAME_SIZE);
+ remove(filename);
+
+ unsigned disk_size = frame->disk_size;
+ images_disk_size -= disk_size;
+ frame->image->total_disk_size -= disk_size;
+ frame->disk_size = 0;
+
+ GR_LOG("After deleting image file %u frame %u (atime %ld ms ago) "
+ "disk: %ld KiB (- %u KiB)\n",
+ frame->image->image_id, frame->index,
+ drawing_start_time - frame->atime, images_disk_size / 1024,
+ disk_size / 1024);
+}
+
+/// Deletes all on-disk cache files of the image (for each frame).
+static void gr_delete_imagefiles(Image *img) {
+ foreach_frame(*img, frame, {
+ gr_delete_imagefile(frame);
+ });
+}
+
+/// Deletes the given placement: unloads, frees the object, but doesn't change
+/// the `placements` hash table.
+static void gr_delete_placement_keep_id(ImagePlacement *placement) {
+ if (!placement)
+ return;
+ GR_LOG("Deleting placement %u/%u\n", placement->image->image_id,
+ placement->placement_id);
+ gr_unload_placement(placement);
+ kv_destroy(placement->pixmaps_beyond_the_first);
+ free(placement);
+ total_placement_count--;
+}
+
+/// Deletes all placements of `img`.
+static void gr_delete_all_placements(Image *img) {
+ ImagePlacement *placement = NULL;
+ kh_foreach_value(img->placements, placement, {
+ gr_delete_placement_keep_id(placement);
+ });
+ kh_clear(id2placement, img->placements);
+}
+
+/// Deletes the given image: unloads, deletes the file, frees the Image object,
+/// but doesn't change the `images` hash table.
+static void gr_delete_image_keep_id(Image *img) {
+ if (!img)
+ return;
+ GR_LOG("Deleting image %u\n", img->image_id);
+ foreach_frame(*img, frame, {
+ gr_delete_imagefile(frame);
+ gr_unload_frame(frame);
+ });
+ kv_destroy(img->frames_beyond_the_first);
+ gr_delete_all_placements(img);
+ kh_destroy(id2placement, img->placements);
+ free(img);
+}
+
+/// Deletes the given image: unloads, deletes the file, frees the Image object,
+/// and also removes it from `images`.
+static void gr_delete_image(Image *img) {
+ if (!img)
+ return;
+ uint32_t id = img->image_id;
+ gr_delete_image_keep_id(img);
+ khiter_t k = kh_get(id2image, images, id);
+ kh_del(id2image, images, k);
+}
+
+/// Deletes the given placement: unloads, frees the object, and also removes it
+/// from `placements`.
+static void gr_delete_placement(ImagePlacement *placement) {
+ if (!placement)
+ return;
+ uint32_t id = placement->placement_id;
+ Image *img = placement->image;
+ gr_delete_placement_keep_id(placement);
+ khiter_t k = kh_get(id2placement, img->placements, id);
+ kh_del(id2placement, img->placements, k);
+}
+
+/// Deletes all images and clears `images`.
+static void gr_delete_all_images() {
+ Image *img = NULL;
+ kh_foreach_value(images, img, {
+ gr_delete_image_keep_id(img);
+ });
+ kh_clear(id2image, images);
+}
+
+/// Update the atime of the image.
+static void gr_touch_image(Image *img) {
+ img->atime = gr_now_ms();
+}
+
+/// Update the atime of the frame.
+static void gr_touch_frame(ImageFrame *frame) {
+ frame->image->atime = frame->atime = gr_now_ms();
+}
+
+/// Update the atime of the placement. Touches the images too.
+static void gr_touch_placement(ImagePlacement *placement) {
+ placement->image->atime = placement->atime = gr_now_ms();
+}
+
+/// Creates a new image with the given id. If an image with that id already
+/// exists, it is deleted first. If the provided id is 0, generates a
+/// random id.
+static Image *gr_new_image(uint32_t id) {
+ if (id == 0) {
+ do {
+ id = rand();
+ // Avoid IDs that don't need full 32 bits.
+ } while ((id & 0xFF000000) == 0 || (id & 0x00FFFF00) == 0 ||
+ gr_find_image(id));
+ GR_LOG("Generated random image id %u\n", id);
+ }
+ Image *img = gr_find_image(id);
+ gr_delete_image_keep_id(img);
+ GR_LOG("Creating image %u\n", id);
+ img = malloc(sizeof(Image));
+ memset(img, 0, sizeof(Image));
+ img->placements = kh_init(id2placement);
+ int ret;
+ khiter_t k = kh_put(id2image, images, id, &ret);
+ kh_value(images, k) = img;
+ img->image_id = id;
+ gr_touch_image(img);
+ img->global_command_index = global_command_counter;
+ return img;
+}
+
+/// Creates a new frame at the end of the frame array. It may be the first frame
+/// if there are no frames yet.
+static ImageFrame *gr_append_new_frame(Image *img) {
+ ImageFrame *frame = NULL;
+ if (img->first_frame.index == 0 &&
+ kv_size(img->frames_beyond_the_first) == 0) {
+ frame = &img->first_frame;
+ frame->index = 1;
+ } else {
+ frame = kv_pushp(ImageFrame, img->frames_beyond_the_first);
+ memset(frame, 0, sizeof(ImageFrame));
+ frame->index = kv_size(img->frames_beyond_the_first) + 1;
+ }
+ frame->image = img;
+ gr_touch_frame(frame);
+ GR_LOG("Appending frame %d to image %u\n", frame->index, img->image_id);
+ return frame;
+}
+
+/// Creates a new placement with the given id. If a placement with that id
+/// already exists, it is deleted first. If the provided id is 0, generates a
+/// random id.
+static ImagePlacement *gr_new_placement(Image *img, uint32_t id) {
+ if (id == 0) {
+ do {
+ // Currently we support only 24-bit IDs.
+ id = rand() & 0xFFFFFF;
+ // Avoid IDs that need only one byte.
+ } while ((id & 0x00FFFF00) == 0 || gr_find_placement(img, id));
+ }
+ ImagePlacement *placement = gr_find_placement(img, id);
+ gr_delete_placement_keep_id(placement);
+ GR_LOG("Creating placement %u/%u\n", img->image_id, id);
+ placement = malloc(sizeof(ImagePlacement));
+ memset(placement, 0, sizeof(ImagePlacement));
+ total_placement_count++;
+ int ret;
+ khiter_t k = kh_put(id2placement, img->placements, id, &ret);
+ kh_value(img->placements, k) = placement;
+ placement->image = img;
+ placement->placement_id = id;
+ gr_touch_placement(placement);
+ if (img->default_placement == 0)
+ img->default_placement = id;
+ return placement;
+}
+
+static int64_t ceil_div(int64_t a, int64_t b) {
+ return (a + b - 1) / b;
+}
+
+/// Computes the best number of rows and columns for a placement if it's not
+/// specified, and also adjusts the source rectangle size.
+static void gr_infer_placement_size_maybe(ImagePlacement *placement) {
+ // The size of the image.
+ int image_pix_width = placement->image->pix_width;
+ int image_pix_height = placement->image->pix_height;
+ // Negative values are not allowed. Quietly set them to 0.
+ if (placement->src_pix_x < 0)
+ placement->src_pix_x = 0;
+ if (placement->src_pix_y < 0)
+ placement->src_pix_y = 0;
+ if (placement->src_pix_width < 0)
+ placement->src_pix_width = 0;
+ if (placement->src_pix_height < 0)
+ placement->src_pix_height = 0;
+ // If the source rectangle is outside the image, truncate it.
+ if (placement->src_pix_x > image_pix_width)
+ placement->src_pix_x = image_pix_width;
+ if (placement->src_pix_y > image_pix_height)
+ placement->src_pix_y = image_pix_height;
+ // If the source rectangle is not specified, use the whole image. If
+ // it's partially outside the image, truncate it.
+ if (placement->src_pix_width == 0 ||
+ placement->src_pix_x + placement->src_pix_width > image_pix_width)
+ placement->src_pix_width =
+ image_pix_width - placement->src_pix_x;
+ if (placement->src_pix_height == 0 ||
+ placement->src_pix_y + placement->src_pix_height > image_pix_height)
+ placement->src_pix_height =
+ image_pix_height - placement->src_pix_y;
+
+ if (placement->cols != 0 && placement->rows != 0)
+ return;
+ if (placement->src_pix_width == 0 || placement->src_pix_height == 0)
+ return;
+ if (current_cw == 0 || current_ch == 0)
+ return;
+
+ // If no size is specified, use the image size.
+ if (placement->cols == 0 && placement->rows == 0) {
+ placement->cols =
+ ceil_div(placement->src_pix_width, current_cw);
+ placement->rows =
+ ceil_div(placement->src_pix_height, current_ch);
+ return;
+ }
+
+ // Some applications specify only one of the dimensions.
+ if (placement->scale_mode == SCALE_MODE_CONTAIN) {
+ // If we preserve aspect ratio and fit to width/height, the most
+ // logical thing is to find the minimum size of the
+ // non-specified dimension that allows the image to fit the
+ // specified dimension.
+ if (placement->cols == 0) {
+ placement->cols = ceil_div(
+ placement->src_pix_width * placement->rows *
+ current_ch,
+ placement->src_pix_height * current_cw);
+ return;
+ }
+ if (placement->rows == 0) {
+ placement->rows =
+ ceil_div(placement->src_pix_height *
+ placement->cols * current_cw,
+ placement->src_pix_width * current_ch);
+ return;
+ }
+ } else {
+ // Otherwise we stretch the image or preserve the original size.
+ // In both cases we compute the best number of columns from the
+ // pixel size and cell size.
+ // TODO: In the case of stretching it's not the most logical
+ // thing to do, may need to revisit in the future.
+ // Currently we switch to SCALE_MODE_CONTAIN when only one
+ // of the dimensions is specified, so this case shouldn't
+ // happen in practice.
+ if (!placement->cols)
+ placement->cols =
+ ceil_div(placement->src_pix_width, current_cw);
+ if (!placement->rows)
+ placement->rows =
+ ceil_div(placement->src_pix_height, current_ch);
+ }
+}
+
+/// Adjusts the current frame index if enough time has passed since the display
+/// of the current frame. Also computes the time of the next redraw of this
+/// image (`img->next_redraw`). The current time is passed as an argument so
+/// that all animations are in sync.
+static void gr_update_frame_index(Image *img, Milliseconds now) {
+ if (img->current_frame == 0) {
+ img->current_frame_time = now;
+ img->current_frame = 1;
+ img->next_redraw = now + MAX(1, img->first_frame.gap);
+ return;
+ }
+ // If the animation is stopped, show the current frame.
+ if (!img->animation_state ||
+ img->animation_state == ANIMATION_STATE_STOPPED ||
+ img->animation_state == ANIMATION_STATE_UNSET) {
+ // The next redraw is never (unless the state is changed).
+ img->next_redraw = 0;
+ return;
+ }
+ int last_uploaded_frame_index = gr_last_uploaded_frame_index(img);
+ // If we are loading and we reached the last frame, show the last frame.
+ if (img->animation_state == ANIMATION_STATE_LOADING &&
+ img->current_frame == last_uploaded_frame_index) {
+ // The next redraw is never (unless the state is changed or
+ // frames are added).
+ img->next_redraw = 0;
+ return;
+ }
+
+ // Check how many milliseconds passed since the current frame was shown.
+ int passed_ms = now - img->current_frame_time;
+ // If the animation is looping and too much time has passes, we can
+ // make a shortcut.
+ if (img->animation_state == ANIMATION_STATE_LOOPING &&
+ img->total_duration > 0 && passed_ms >= img->total_duration) {
+ passed_ms %= img->total_duration;
+ img->current_frame_time = now - passed_ms;
+ }
+ // Find the next frame.
+ int original_frame_index = img->current_frame;
+ while (1) {
+ ImageFrame *frame = gr_get_frame(img, img->current_frame);
+ if (!frame) {
+ // The frame doesn't exist, go to the first frame.
+ img->current_frame = 1;
+ img->current_frame_time = now;
+ img->next_redraw = now + MAX(1, img->first_frame.gap);
+ return;
+ }
+ if (frame->gap >= 0 && passed_ms < frame->gap) {
+ // Not enough time has passed, we are still in the same
+ // frame, and it's not a gapless frame.
+ img->next_redraw =
+ img->current_frame_time + MAX(1, frame->gap);
+ return;
+ }
+ // Otherwise go to the next frame.
+ passed_ms -= MAX(0, frame->gap);
+ if (img->current_frame >= last_uploaded_frame_index) {
+ // It's the last frame, if the animation is loading,
+ // remain on it.
+ if (img->animation_state == ANIMATION_STATE_LOADING) {
+ img->next_redraw = 0;
+ return;
+ }
+ // Otherwise the animation is looping.
+ img->current_frame = 1;
+ // TODO: Support finite number of loops.
+ } else {
+ img->current_frame++;
+ }
+ // Make sure we don't get stuck in an infinite loop.
+ if (img->current_frame == original_frame_index) {
+ // We looped through all frames, but haven't reached the
+ // next frame yet. This may happen if too much time has
+ // passed since the last redraw or all the frames are
+ // gapless. Just move on to the next frame.
+ img->current_frame++;
+ if (img->current_frame >
+ last_uploaded_frame_index)
+ img->current_frame = 1;
+ img->current_frame_time = now;
+ img->next_redraw = now + MAX(
+ 1, gr_get_frame(img, img->current_frame)->gap);
+ return;
+ }
+ // Adjust the start time of the frame. The next redraw time will
+ // be set in the next iteration.
+ img->current_frame_time += MAX(0, frame->gap);
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Unloading and deleting images to save resources.
+////////////////////////////////////////////////////////////////////////////////
+
+/// A helper to compare frames by atime for qsort.
+static int gr_cmp_frames_by_atime(const void *a, const void *b) {
+ ImageFrame *frame_a = *(ImageFrame *const *)a;
+ ImageFrame *frame_b = *(ImageFrame *const *)b;
+ if (frame_a->atime == frame_b->atime)
+ return frame_a->image->global_command_index -
+ frame_b->image->global_command_index;
+ return frame_a->atime - frame_b->atime;
+}
+
+/// A helper to compare images by atime for qsort.
+static int gr_cmp_images_by_atime(const void *a, const void *b) {
+ Image *img_a = *(Image *const *)a;
+ Image *img_b = *(Image *const *)b;
+ if (img_a->atime == img_b->atime)
+ return img_a->global_command_index -
+ img_b->global_command_index;
+ return img_a->atime - img_b->atime;
+}
+
+/// A helper to compare placements by atime for qsort.
+static int gr_cmp_placements_by_atime(const void *a, const void *b) {
+ ImagePlacement *p_a = *(ImagePlacement **)a;
+ ImagePlacement *p_b = *(ImagePlacement **)b;
+ if (p_a->atime == p_b->atime)
+ return p_a->image->global_command_index -
+ p_b->image->global_command_index;
+ return p_a->atime - p_b->atime;
+}
+
+typedef kvec_t(Image *) ImageVec;
+typedef kvec_t(ImagePlacement *) ImagePlacementVec;
+typedef kvec_t(ImageFrame *) ImageFrameVec;
+
+/// Returns an array of pointers to all images sorted by atime.
+static ImageVec gr_get_images_sorted_by_atime() {
+ ImageVec vec;
+ kv_init(vec);
+ if (kh_size(images) == 0)
+ return vec;
+ kv_resize(Image *, vec, kh_size(images));
+ Image *img = NULL;
+ kh_foreach_value(images, img, { kv_push(Image *, vec, img); });
+ qsort(vec.a, kv_size(vec), sizeof(Image *), gr_cmp_images_by_atime);
+ return vec;
+}
+
+/// Returns an array of pointers to all placements sorted by atime.
+static ImagePlacementVec gr_get_placements_sorted_by_atime() {
+ ImagePlacementVec vec;
+ kv_init(vec);
+ if (total_placement_count == 0)
+ return vec;
+ kv_resize(ImagePlacement *, vec, total_placement_count);
+ Image *img = NULL;
+ ImagePlacement *placement = NULL;
+ kh_foreach_value(images, img, {
+ kh_foreach_value(img->placements, placement, {
+ kv_push(ImagePlacement *, vec, placement);
+ });
+ });
+ qsort(vec.a, kv_size(vec), sizeof(ImagePlacement *),
+ gr_cmp_placements_by_atime);
+ return vec;
+}
+
+/// Returns an array of pointers to all frames sorted by atime.
+static ImageFrameVec gr_get_frames_sorted_by_atime() {
+ ImageFrameVec frames;
+ kv_init(frames);
+ Image *img = NULL;
+ kh_foreach_value(images, img, {
+ foreach_frame(*img, frame, {
+ kv_push(ImageFrame *, frames, frame);
+ });
+ });
+ qsort(frames.a, kv_size(frames), sizeof(ImageFrame *),
+ gr_cmp_frames_by_atime);
+ return frames;
+}
+
+/// An object that can be unloaded from RAM.
+typedef struct {
+ /// Some score, probably based on access time. The lower the score, the
+ /// more likely that the object should be unloaded.
+ int64_t score;
+ union {
+ ImagePlacement *placement;
+ ImageFrame *frame;
+ };
+ /// If zero, the object is the imlib object of `frame`, if non-zero,
+ /// the object is a pixmap of `frameidx`-th frame of `placement`.
+ int frameidx;
+} UnloadableObject;
+
+typedef kvec_t(UnloadableObject) UnloadableObjectVec;
+
+/// A helper to compare unloadable objects by score for qsort.
+static int gr_cmp_unloadable_objects(const void *a, const void *b) {
+ UnloadableObject *obj_a = (UnloadableObject *)a;
+ UnloadableObject *obj_b = (UnloadableObject *)b;
+ return obj_a->score - obj_b->score;
+}
+
+/// Unloads an unloadable object from RAM.
+static void gr_unload_object(UnloadableObject *obj) {
+ if (obj->frameidx) {
+ if (obj->placement->protected_frame == obj->frameidx)
+ return;
+ gr_unload_pixmap(obj->placement, obj->frameidx);
+ } else {
+ gr_unload_frame(obj->frame);
+ }
+}
+
+/// Returns the recency threshold for an image. Frames that were accessed within
+/// this threshold from now are considered recent and may be handled
+/// differently because we may need them again very soon.
+static Milliseconds gr_recency_threshold(Image *img) {
+ return img->total_duration * 2 + 1000;
+}
+
+/// Creates an unloadable object for the imlib object of a frame.
+static UnloadableObject gr_unloadable_object_for_frame(Milliseconds now,
+ ImageFrame *frame) {
+ UnloadableObject obj = {0};
+ obj.frameidx = 0;
+ obj.frame = frame;
+ Milliseconds atime = frame->atime;
+ obj.score = atime;
+ if (atime >= now - gr_recency_threshold(frame->image)) {
+ // This is a recent frame, probably from an active animation.
+ // Score it above `now` to prefer unloading non-active frames.
+ // Randomize the score because it's not very clear in which
+ // order we want to unload them: reloading a frame may require
+ // reloading other frames.
+ obj.score = now + 1000 + rand() % 1000;
+ }
+ return obj;
+}
+
+/// Creates an unloadable object for a pixmap.
+static UnloadableObject
+gr_unloadable_object_for_pixmap(Milliseconds now, ImageFrame *frame,
+ ImagePlacement *placement) {
+ UnloadableObject obj = {0};
+ obj.frameidx = frame->index;
+ obj.placement = placement;
+ obj.score = placement->atime;
+ // Since we don't store pixmap atimes, use the
+ // oldest atime of the frame and the placement.
+ Milliseconds atime = MIN(placement->atime, frame->atime);
+ obj.score = atime;
+ if (atime >= now - gr_recency_threshold(frame->image)) {
+ // This is a recent pixmap, probably from an active animation.
+ // Score it above `now` to prefer unloading non-active frames.
+ // Also assign higher scores to frames that are closer to the
+ // current frame (more likely to be used soon).
+ int num_frames = gr_last_frame_index(frame->image);
+ int dist = frame->index - frame->image->current_frame;
+ if (dist < 0)
+ dist += num_frames;
+ obj.score =
+ now + 1000 + (num_frames - dist) * 1000 / num_frames;
+ // If the pixmap is much larger than the imlib image, prefer to
+ // unload the pixmap by adding up to -1000 to the score. If the
+ // imlib image is larger, add up to +1000.
+ float imlib_size = gr_frame_current_ram_size(frame);
+ float pixmap_size =
+ gr_placement_single_frame_ram_size(placement);
+ obj.score +=
+ 2000 * (imlib_size / (imlib_size + pixmap_size) - 0.5);
+ }
+ return obj;
+}
+
+/// Returns an array of unloadable objects sorted by score.
+static UnloadableObjectVec
+gr_get_unloadable_objects_sorted_by_score(Milliseconds now) {
+ UnloadableObjectVec objects;
+ kv_init(objects);
+ Image *img = NULL;
+ ImagePlacement *placement = NULL;
+ kh_foreach_value(images, img, {
+ foreach_frame(*img, frame, {
+ if (!frame->imlib_object)
+ continue;
+ kv_push(UnloadableObject, objects,
+ gr_unloadable_object_for_frame(now, frame));
+ int frameidx = frame->index;
+ kh_foreach_value(img->placements, placement, {
+ if (!gr_get_frame_pixmap(placement, frameidx))
+ continue;
+ kv_push(UnloadableObject, objects,
+ gr_unloadable_object_for_pixmap(
+ now, frame, placement));
+ });
+ });
+ });
+ qsort(objects.a, kv_size(objects), sizeof(UnloadableObject),
+ gr_cmp_unloadable_objects);
+ return objects;
+}
+
+/// Returns the limit adjusted by the excess tolerance ratio.
+static inline unsigned apply_tolerance(unsigned limit) {
+ return limit + (unsigned)(limit * graphics_excess_tolerance_ratio);
+}
+
+/// Checks RAM and disk cache limits and deletes/unloads some images.
+static void gr_check_limits() {
+ Milliseconds now = gr_now_ms();
+ ImageVec images_sorted = {0};
+ ImagePlacementVec placements_sorted = {0};
+ ImageFrameVec frames_sorted = {0};
+ UnloadableObjectVec objects_sorted = {0};
+ int images_begin = 0;
+ int placements_begin = 0;
+ char changed = 0;
+ // First reduce the number of images if there are too many.
+ if (kh_size(images) > apply_tolerance(graphics_max_total_placements)) {
+ GR_LOG("Too many images: %d\n", kh_size(images));
+ changed = 1;
+ images_sorted = gr_get_images_sorted_by_atime();
+ int to_delete = kv_size(images_sorted) -
+ graphics_max_total_placements;
+ for (; images_begin < to_delete; images_begin++)
+ gr_delete_image(images_sorted.a[images_begin]);
+ }
+ // Then reduce the number of placements if there are too many.
+ if (total_placement_count >
+ apply_tolerance(graphics_max_total_placements)) {
+ GR_LOG("Too many placements: %d\n", total_placement_count);
+ changed = 1;
+ placements_sorted = gr_get_placements_sorted_by_atime();
+ int to_delete = kv_size(placements_sorted) -
+ graphics_max_total_placements;
+ for (; placements_begin < to_delete; placements_begin++) {
+ ImagePlacement *placement =
+ placements_sorted.a[placements_begin];
+ if (placement->protected_frame)
+ break;
+ gr_delete_placement(placement);
+ }
+ }
+ // Then reduce the size of the image file cache. The files correspond to
+ // image frames.
+ if (images_disk_size >
+ apply_tolerance(graphics_total_file_cache_size)) {
+ GR_LOG("Too big disk cache: %ld KiB\n",
+ images_disk_size / 1024);
+ changed = 1;
+ frames_sorted = gr_get_frames_sorted_by_atime();
+ for (int i = 0; i < kv_size(frames_sorted); i++) {
+ if (images_disk_size <= graphics_total_file_cache_size)
+ break;
+ gr_delete_imagefile(kv_A(frames_sorted, i));
+ }
+ }
+ // Then unload images from RAM.
+ if (images_ram_size > apply_tolerance(graphics_max_total_ram_size)) {
+ changed = 1;
+ int frames_begin = 0;
+ GR_LOG("Too much ram: %ld KiB\n", images_ram_size / 1024);
+ objects_sorted = gr_get_unloadable_objects_sorted_by_score(now);
+ for (int i = 0; i < kv_size(objects_sorted); i++) {
+ if (images_ram_size <= graphics_max_total_ram_size)
+ break;
+ gr_unload_object(&kv_A(objects_sorted, i));
+ }
+ }
+ if (changed) {
+ GR_LOG("After cleaning: ram: %ld KiB disk: %ld KiB "
+ "img count: %d placement count: %d\n",
+ images_ram_size / 1024, images_disk_size / 1024,
+ kh_size(images), total_placement_count);
+ }
+ kv_destroy(images_sorted);
+ kv_destroy(placements_sorted);
+ kv_destroy(frames_sorted);
+ kv_destroy(objects_sorted);
+}
+
+/// Unloads all images by user request.
+void gr_unload_images_to_reduce_ram() {
+ Image *img = NULL;
+ ImagePlacement *placement = NULL;
+ kh_foreach_value(images, img, {
+ kh_foreach_value(img->placements, placement, {
+ if (placement->protected_frame)
+ continue;
+ gr_unload_placement(placement);
+ });
+ gr_unload_all_frames(img);
+ });
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Image loading.
+////////////////////////////////////////////////////////////////////////////////
+
+/// Copies `num_pixels` pixels (not bytes!) from a buffer `from` to an imlib2
+/// image data `to`. The format may be 24 (RGB) or 32 (RGBA), and it's converted
+/// to imlib2's representation, which is 0xAARRGGBB (having BGRA memory layout
+/// on little-endian architectures).
+static inline void gr_copy_pixels(DATA32 *to, unsigned char *from, int format,
+ size_t num_pixels) {
+ size_t pixel_size = format == 24 ? 3 : 4;
+ if (format == 32) {
+ for (unsigned i = 0; i < num_pixels; ++i) {
+ unsigned byte_i = i * pixel_size;
+ to[i] = ((DATA32)from[byte_i + 2]) |
+ ((DATA32)from[byte_i + 1]) << 8 |
+ ((DATA32)from[byte_i]) << 16 |
+ ((DATA32)from[byte_i + 3]) << 24;
+ }
+ } else {
+ for (unsigned i = 0; i < num_pixels; ++i) {
+ unsigned byte_i = i * pixel_size;
+ to[i] = ((DATA32)from[byte_i + 2]) |
+ ((DATA32)from[byte_i + 1]) << 8 |
+ ((DATA32)from[byte_i]) << 16 | 0xFF000000;
+ }
+ }
+}
+
+/// Loads uncompressed RGB or RGBA image data from a file.
+static void gr_load_raw_pixel_data_uncompressed(DATA32 *data, FILE *file,
+ int format,
+ size_t total_pixels) {
+ unsigned char chunk[BUFSIZ];
+ size_t pixel_size = format == 24 ? 3 : 4;
+ size_t chunk_size_pix = BUFSIZ / 4;
+ size_t chunk_size_bytes = chunk_size_pix * pixel_size;
+ size_t bytes = total_pixels * pixel_size;
+ for (size_t chunk_start_pix = 0; chunk_start_pix < total_pixels;
+ chunk_start_pix += chunk_size_pix) {
+ size_t read_size = fread(chunk, 1, chunk_size_bytes, file);
+ size_t read_pixels = read_size / pixel_size;
+ if (chunk_start_pix + read_pixels > total_pixels)
+ read_pixels = total_pixels - chunk_start_pix;
+ gr_copy_pixels(data + chunk_start_pix, chunk, format,
+ read_pixels);
+ }
+}
+
+#define COMPRESSED_CHUNK_SIZE BUFSIZ
+#define DECOMPRESSED_CHUNK_SIZE (BUFSIZ * 4)
+
+/// Loads compressed RGB or RGBA image data from a file.
+static int gr_load_raw_pixel_data_compressed(DATA32 *data, FILE *file,
+ int format, size_t total_pixels) {
+ size_t pixel_size = format == 24 ? 3 : 4;
+ unsigned char compressed_chunk[COMPRESSED_CHUNK_SIZE];
+ unsigned char decompressed_chunk[DECOMPRESSED_CHUNK_SIZE];
+
+ z_stream strm;
+ strm.zalloc = Z_NULL;
+ strm.zfree = Z_NULL;
+ strm.opaque = Z_NULL;
+ strm.next_out = decompressed_chunk;
+ strm.avail_out = DECOMPRESSED_CHUNK_SIZE;
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+ int ret = inflateInit(&strm);
+ if (ret != Z_OK)
+ return 1;
+
+ int error = 0;
+ int progress = 0;
+ size_t total_copied_pixels = 0;
+ while (1) {
+ // If we don't have enough data in the input buffer, try to read
+ // from the file.
+ if (strm.avail_in <= COMPRESSED_CHUNK_SIZE / 4) {
+ // Move the existing data to the beginning.
+ memmove(compressed_chunk, strm.next_in, strm.avail_in);
+ strm.next_in = compressed_chunk;
+ // Read more data.
+ size_t bytes_read = fread(
+ compressed_chunk + strm.avail_in, 1,
+ COMPRESSED_CHUNK_SIZE - strm.avail_in, file);
+ strm.avail_in += bytes_read;
+ if (bytes_read != 0)
+ progress = 1;
+ }
+
+ // Try to inflate the data.
+ int ret = inflate(&strm, Z_SYNC_FLUSH);
+ if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR) {
+ error = 1;
+ fprintf(stderr,
+ "error: could not decompress the image, error "
+ "%s\n",
+ ret == Z_MEM_ERROR ? "Z_MEM_ERROR"
+ : "Z_DATA_ERROR");
+ break;
+ }
+
+ // Copy the data from the output buffer to the image.
+ size_t full_pixels =
+ (DECOMPRESSED_CHUNK_SIZE - strm.avail_out) / pixel_size;
+ // Make sure we don't overflow the image.
+ if (full_pixels > total_pixels - total_copied_pixels)
+ full_pixels = total_pixels - total_copied_pixels;
+ if (full_pixels > 0) {
+ // Copy pixels.
+ gr_copy_pixels(data, decompressed_chunk, format,
+ full_pixels);
+ data += full_pixels;
+ total_copied_pixels += full_pixels;
+ if (total_copied_pixels >= total_pixels) {
+ // We filled the whole image, there may be some
+ // data left, but we just truncate it.
+ break;
+ }
+ // Move the remaining data to the beginning.
+ size_t copied_bytes = full_pixels * pixel_size;
+ size_t leftover =
+ (DECOMPRESSED_CHUNK_SIZE - strm.avail_out) -
+ copied_bytes;
+ memmove(decompressed_chunk,
+ decompressed_chunk + copied_bytes, leftover);
+ strm.next_out -= copied_bytes;
+ strm.avail_out += copied_bytes;
+ progress = 1;
+ }
+
+ // If we haven't made any progress, then we have reached the end
+ // of both the file and the inflated data.
+ if (!progress)
+ break;
+ progress = 0;
+ }
+
+ inflateEnd(&strm);
+ return error;
+}
+
+#undef COMPRESSED_CHUNK_SIZE
+#undef DECOMPRESSED_CHUNK_SIZE
+
+/// Load the image from a file containing raw pixel data (RGB or RGBA), the data
+/// may be compressed.
+static Imlib_Image gr_load_raw_pixel_data(ImageFrame *frame,
+ const char *filename) {
+ size_t total_pixels = frame->data_pix_width * frame->data_pix_height;
+ if (total_pixels * 4 > graphics_max_single_image_ram_size) {
+ fprintf(stderr,
+ "error: image %u frame %u is too big too load: %zu > %u\n",
+ frame->image->image_id, frame->index, total_pixels * 4,
+ graphics_max_single_image_ram_size);
+ return NULL;
+ }
+
+ FILE* file = fopen(filename, "rb");
+ if (!file) {
+ fprintf(stderr,
+ "error: could not open image file: %s\n",
+ sanitized_filename(filename));
+ return NULL;
+ }
+
+ Imlib_Image image = imlib_create_image(frame->data_pix_width,
+ frame->data_pix_height);
+ if (!image) {
+ fprintf(stderr,
+ "error: could not create an image of size %d x %d\n",
+ frame->data_pix_width, frame->data_pix_height);
+ fclose(file);
+ return NULL;
+ }
+
+ imlib_context_set_image(image);
+ imlib_image_set_has_alpha(1);
+ DATA32* data = imlib_image_get_data();
+
+ // The default format is 32.
+ int format = frame->format ? frame->format : 32;
+
+ if (frame->compression == 0) {
+ gr_load_raw_pixel_data_uncompressed(data, file, format,
+ total_pixels);
+ } else {
+ int ret = gr_load_raw_pixel_data_compressed(data, file, format,
+ total_pixels);
+ if (ret != 0) {
+ imlib_image_put_back_data(data);
+ imlib_free_image();
+ fclose(file);
+ return NULL;
+ }
+ }
+
+ fclose(file);
+ imlib_image_put_back_data(data);
+ return image;
+}
+
+/// Loads the unscaled frame into RAM as an imlib object. The frame imlib object
+/// is fully composed on top of the background frame. If the frame is already
+/// loaded, does nothing. Loading may fail, in which case the status of the
+/// frame will be set to STATUS_RAM_LOADING_ERROR.
+static void gr_load_imlib_object(ImageFrame *frame) {
+ if (frame->imlib_object)
+ return;
+
+ // If the image is uninitialized or uploading has failed, or the file
+ // has been deleted, we cannot load the image.
+ if (frame->status < STATUS_UPLOADING_SUCCESS)
+ return;
+ if (frame->disk_size == 0) {
+ if (frame->status != STATUS_RAM_LOADING_ERROR) {
+ fprintf(stderr,
+ "error: cached image was deleted: %u frame %u\n",
+ frame->image->image_id, frame->index);
+ }
+ frame->status = STATUS_RAM_LOADING_ERROR;
+ return;
+ }
+
+ // Prevent recursive dependences between frames.
+ if (frame->status == STATUS_RAM_LOADING_IN_PROGRESS) {
+ fprintf(stderr,
+ "error: recursive loading of image %u frame %u\n",
+ frame->image->image_id, frame->index);
+ frame->status = STATUS_RAM_LOADING_ERROR;
+ return;
+ }
+ frame->status = STATUS_RAM_LOADING_IN_PROGRESS;
+
+ // Load the background frame if needed. Hopefully it's not recursive.
+ ImageFrame *bg_frame = NULL;
+ if (frame->background_frame_index) {
+ bg_frame = gr_get_frame(frame->image,
+ frame->background_frame_index);
+ if (!bg_frame) {
+ fprintf(stderr,
+ "error: could not find background "
+ "frame %d for image %u frame %d\n",
+ frame->background_frame_index,
+ frame->image->image_id, frame->index);
+ frame->status = STATUS_RAM_LOADING_ERROR;
+ return;
+ }
+ gr_load_imlib_object(bg_frame);
+ if (!bg_frame->imlib_object) {
+ fprintf(stderr,
+ "error: could not load background frame %d for "
+ "image %u frame %d\n",
+ frame->background_frame_index,
+ frame->image->image_id, frame->index);
+ frame->status = STATUS_RAM_LOADING_ERROR;
+ return;
+ }
+ }
+
+ // Load the frame data image.
+ Imlib_Image frame_data_image = NULL;
+ char filename[MAX_FILENAME_SIZE];
+ gr_get_frame_filename(frame, filename, MAX_FILENAME_SIZE);
+ GR_LOG("Loading image: %s\n", sanitized_filename(filename));
+ if (frame->format == 100 || frame->format == 0)
+ frame_data_image = imlib_load_image(filename);
+ if (frame->format == 32 || frame->format == 24 ||
+ (!frame_data_image && frame->format == 0))
+ frame_data_image = gr_load_raw_pixel_data(frame, filename);
+ this_redraw_cycle_loaded_files++;
+
+ if (!frame_data_image) {
+ if (frame->status != STATUS_RAM_LOADING_ERROR) {
+ fprintf(stderr, "error: could not load image: %s\n",
+ sanitized_filename(filename));
+ }
+ frame->status = STATUS_RAM_LOADING_ERROR;
+ return;
+ }
+
+ imlib_context_set_image(frame_data_image);
+ int frame_data_width = imlib_image_get_width();
+ int frame_data_height = imlib_image_get_height();
+ GR_LOG("Successfully loaded, size %d x %d\n", frame_data_width,
+ frame_data_height);
+ // If imlib loading succeeded, and it is the first frame, set the
+ // information about the original image size, unless it's already set.
+ if (frame->index == 1 && frame->image->pix_width == 0 &&
+ frame->image->pix_height == 0) {
+ frame->image->pix_width = frame_data_width;
+ frame->image->pix_height = frame_data_height;
+ }
+
+ int image_width = frame->image->pix_width;
+ int image_height = frame->image->pix_height;
+
+ // Compose the image with the background color or frame.
+ if (frame->background_color != 0 || bg_frame ||
+ image_width != frame_data_width ||
+ image_height != frame_data_height) {
+ GR_LOG("Composing the frame bg = 0x%08X, bgframe = %d\n",
+ frame->background_color, frame->background_frame_index);
+ Imlib_Image composed_image = imlib_create_image(
+ image_width, image_height);
+ imlib_context_set_image(composed_image);
+ imlib_image_set_has_alpha(1);
+ imlib_context_set_anti_alias(0);
+
+ // Start with the background frame or color.
+ imlib_context_set_blend(0);
+ if (bg_frame && bg_frame->imlib_object) {
+ imlib_blend_image_onto_image(
+ bg_frame->imlib_object, 1, 0, 0,
+ image_width, image_height, 0, 0,
+ image_width, image_height);
+ } else {
+ int r = (frame->background_color >> 24) & 0xFF;
+ int g = (frame->background_color >> 16) & 0xFF;
+ int b = (frame->background_color >> 8) & 0xFF;
+ int a = frame->background_color & 0xFF;
+ imlib_context_set_color(r, g, b, a);
+ imlib_image_fill_rectangle(0, 0, image_width,
+ image_height);
+ }
+
+ // Blend the frame data image onto the background.
+ imlib_context_set_blend(1);
+ imlib_blend_image_onto_image(
+ frame_data_image, 1, 0, 0, frame->data_pix_width,
+ frame->data_pix_height, frame->x, frame->y,
+ frame->data_pix_width, frame->data_pix_height);
+
+ // Free the frame data image.
+ imlib_context_set_image(frame_data_image);
+ imlib_free_image();
+
+ frame_data_image = composed_image;
+ }
+
+ frame->imlib_object = frame_data_image;
+
+ images_ram_size += gr_frame_current_ram_size(frame);
+ frame->status = STATUS_RAM_LOADING_SUCCESS;
+
+ GR_LOG("After loading image %u frame %d ram: %ld KiB (+ %u KiB)\n",
+ frame->image->image_id, frame->index,
+ images_ram_size / 1024, gr_frame_current_ram_size(frame) / 1024);
+}
+
+/// Premultiplies the alpha channel of the image data. The data is an array of
+/// pixels such that each pixel is a 32-bit integer in the format 0xAARRGGBB.
+static void gr_premultiply_alpha(DATA32 *data, size_t num_pixels) {
+ for (size_t i = 0; i < num_pixels; ++i) {
+ DATA32 pixel = data[i];
+ unsigned char a = pixel >> 24;
+ if (a == 0) {
+ data[i] = 0;
+ } else if (a != 255) {
+ unsigned char b = (pixel & 0xFF) * a / 255;
+ unsigned char g = ((pixel >> 8) & 0xFF) * a / 255;
+ unsigned char r = ((pixel >> 16) & 0xFF) * a / 255;
+ data[i] = (a << 24) | (r << 16) | (g << 8) | b;
+ }
+ }
+}
+
+/// Creates a pixmap for the frame of an image placement. The pixmap contain the
+/// image data correctly scaled and fit to the box defined by the number of
+/// rows/columns of the image placement and the provided cell dimensions in
+/// pixels. If the placement is already loaded, it will be reloaded only if the
+/// cell dimensions have changed.
+Pixmap gr_load_pixmap(ImagePlacement *placement, int frameidx, int cw, int ch) {
+ Image *img = placement->image;
+ ImageFrame *frame = gr_get_frame(img, frameidx);
+
+ // Update the atime uncoditionally.
+ gr_touch_placement(placement);
+ if (frame)
+ gr_touch_frame(frame);
+
+ // If cw or ch are different, unload all the pixmaps.
+ if (placement->scaled_cw != cw || placement->scaled_ch != ch) {
+ gr_unload_placement(placement);
+ placement->scaled_cw = cw;
+ placement->scaled_ch = ch;
+ }
+
+ // If it's already loaded, do nothing.
+ Pixmap pixmap = gr_get_frame_pixmap(placement, frameidx);
+ if (pixmap)
+ return pixmap;
+
+ GR_LOG("Loading placement: %u/%u frame %u\n", img->image_id,
+ placement->placement_id, frameidx);
+
+ // Load the imlib object for the frame.
+ if (!frame) {
+ fprintf(stderr,
+ "error: could not find frame %u for image %u\n",
+ frameidx, img->image_id);
+ return 0;
+ }
+ gr_load_imlib_object(frame);
+ if (!frame->imlib_object)
+ return 0;
+
+ // Infer the placement size if needed.
+ gr_infer_placement_size_maybe(placement);
+
+ // Create the scaled image. This is temporary, we will scale it
+ // appropriately, upload to the X server, and then delete immediately.
+ int scaled_w = (int)placement->cols * cw;
+ int scaled_h = (int)placement->rows * ch;
+ if (scaled_w * scaled_h * 4 > graphics_max_single_image_ram_size) {
+ fprintf(stderr,
+ "error: placement %u/%u would be too big to load: %d x "
+ "%d x 4 > %u\n",
+ img->image_id, placement->placement_id, scaled_w,
+ scaled_h, graphics_max_single_image_ram_size);
+ return 0;
+ }
+ Imlib_Image scaled_image = imlib_create_image(scaled_w, scaled_h);
+ if (!scaled_image) {
+ fprintf(stderr,
+ "error: imlib_create_image(%d, %d) returned "
+ "null\n",
+ scaled_w, scaled_h);
+ return 0;
+ }
+ imlib_context_set_image(scaled_image);
+ imlib_image_set_has_alpha(1);
+
+ // First fill the scaled image with the transparent color.
+ imlib_context_set_blend(0);
+ imlib_context_set_color(0, 0, 0, 0);
+ imlib_image_fill_rectangle(0, 0, scaled_w, scaled_h);
+ imlib_context_set_anti_alias(1);
+ imlib_context_set_blend(1);
+
+ // The source rectangle.
+ int src_x = placement->src_pix_x;
+ int src_y = placement->src_pix_y;
+ int src_w = placement->src_pix_width;
+ int src_h = placement->src_pix_height;
+ // Whether the box is too small to use the true size of the image.
+ char box_too_small = scaled_w < src_w || scaled_h < src_h;
+ char mode = placement->scale_mode;
+
+ // Then blend the original image onto the transparent background.
+ if (src_w <= 0 || src_h <= 0) {
+ fprintf(stderr, "warning: image of zero size\n");
+ } else if (mode == SCALE_MODE_FILL) {
+ imlib_blend_image_onto_image(frame->imlib_object, 1, src_x,
+ src_y, src_w, src_h, 0, 0,
+ scaled_w, scaled_h);
+ } else if (mode == SCALE_MODE_NONE ||
+ (mode == SCALE_MODE_NONE_OR_CONTAIN && !box_too_small)) {
+ imlib_blend_image_onto_image(frame->imlib_object, 1, src_x,
+ src_y, src_w, src_h, 0, 0, src_w,
+ src_h);
+ } else {
+ if (mode != SCALE_MODE_CONTAIN &&
+ mode != SCALE_MODE_NONE_OR_CONTAIN) {
+ fprintf(stderr,
+ "warning: unknown scale mode %u, using "
+ "'contain' instead\n",
+ mode);
+ }
+ int dest_x, dest_y;
+ int dest_w, dest_h;
+ if (scaled_w * src_h > src_w * scaled_h) {
+ // If the box is wider than the original image, fit to
+ // height.
+ dest_h = scaled_h;
+ dest_y = 0;
+ dest_w = src_w * scaled_h / src_h;
+ dest_x = (scaled_w - dest_w) / 2;
+ } else {
+ // Otherwise, fit to width.
+ dest_w = scaled_w;
+ dest_x = 0;
+ dest_h = src_h * scaled_w / src_w;
+ dest_y = (scaled_h - dest_h) / 2;
+ }
+ imlib_blend_image_onto_image(frame->imlib_object, 1, src_x,
+ src_y, src_w, src_h, dest_x,
+ dest_y, dest_w, dest_h);
+ }
+
+ // XRender needs the alpha channel premultiplied.
+ DATA32 *data = imlib_image_get_data();
+ gr_premultiply_alpha(data, scaled_w * scaled_h);
+
+ // Upload the image to the X server.
+ Display *disp = imlib_context_get_display();
+ Visual *vis = imlib_context_get_visual();
+ Colormap cmap = imlib_context_get_colormap();
+ Drawable drawable = imlib_context_get_drawable();
+ if (!drawable)
+ drawable = DefaultRootWindow(disp);
+ pixmap = XCreatePixmap(disp, drawable, scaled_w, scaled_h, 32);
+ XVisualInfo visinfo;
+ XMatchVisualInfo(disp, DefaultScreen(disp), 32, TrueColor, &visinfo);
+ XImage *ximage = XCreateImage(disp, visinfo.visual, 32, ZPixmap, 0,
+ (char *)data, scaled_w, scaled_h, 32, 0);
+ GC gc = XCreateGC(disp, pixmap, 0, NULL);
+ XPutImage(disp, pixmap, gc, ximage, 0, 0, 0, 0, scaled_w,
+ scaled_h);
+ XFreeGC(disp, gc);
+ // XDestroyImage will free the data as well, but it is managed by imlib,
+ // so set it to NULL.
+ ximage->data = NULL;
+ XDestroyImage(ximage);
+ imlib_image_put_back_data(data);
+ imlib_free_image();
+
+ // Assign the pixmap to the frame and increase the ram size.
+ gr_set_frame_pixmap(placement, frameidx, pixmap);
+ images_ram_size += gr_placement_single_frame_ram_size(placement);
+ this_redraw_cycle_loaded_pixmaps++;
+
+ GR_LOG("After loading placement %u/%u frame %d ram: %ld KiB (+ %u "
+ "KiB)\n",
+ frame->image->image_id, placement->placement_id, frame->index,
+ images_ram_size / 1024,
+ gr_placement_single_frame_ram_size(placement) / 1024);
+
+ // Free up ram if needed, but keep the pixmap we've loaded no matter
+ // what.
+ placement->protected_frame = frameidx;
+ gr_check_limits();
+ placement->protected_frame = 0;
+
+ return pixmap;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Initialization and deinitialization.
+////////////////////////////////////////////////////////////////////////////////
+
+/// Creates a temporary directory.
+static int gr_create_cache_dir() {
+ strncpy(cache_dir, graphics_cache_dir_template, sizeof(cache_dir));
+ if (!mkdtemp(cache_dir)) {
+ fprintf(stderr,
+ "error: could not create temporary dir from template "
+ "%s\n",
+ sanitized_filename(cache_dir));
+ return 0;
+ }
+ fprintf(stderr, "Graphics cache directory: %s\n", cache_dir);
+ return 1;
+}
+
+/// Checks whether `tmp_dir` exists and recreates it if it doesn't.
+static void gr_make_sure_tmpdir_exists() {
+ struct stat st;
+ if (stat(cache_dir, &st) == 0 && S_ISDIR(st.st_mode))
+ return;
+ fprintf(stderr,
+ "error: %s is not a directory, will need to create a new "
+ "graphics cache directory\n",
+ sanitized_filename(cache_dir));
+ gr_create_cache_dir();
+}
+
+/// Initialize the graphics module.
+void gr_init(Display *disp, Visual *vis, Colormap cm) {
+ // Set the initialization time.
+ clock_gettime(CLOCK_MONOTONIC, &initialization_time);
+
+ // Create the temporary dir.
+ if (!gr_create_cache_dir())
+ abort();
+
+ // Initialize imlib.
+ imlib_context_set_display(disp);
+ imlib_context_set_visual(vis);
+ imlib_context_set_colormap(cm);
+ imlib_context_set_anti_alias(1);
+ imlib_context_set_blend(1);
+ // Imlib2 checks only the file name when caching, which is not enough
+ // for us since we reuse file names. Disable caching.
+ imlib_set_cache_size(0);
+
+ // Prepare for color inversion.
+ for (size_t i = 0; i < 256; ++i)
+ reverse_table[i] = 255 - i;
+
+ // Create data structures.
+ images = kh_init(id2image);
+ kv_init(next_redraw_times);
+
+ atexit(gr_deinit);
+}
+
+/// Deinitialize the graphics module.
+void gr_deinit() {
+ // Remove the cache dir.
+ remove(cache_dir);
+ kv_destroy(next_redraw_times);
+ if (images) {
+ // Delete all images.
+ gr_delete_all_images();
+ // Destroy the data structures.
+ kh_destroy(id2image, images);
+ images = NULL;
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Dumping, debugging, and image preview.
+////////////////////////////////////////////////////////////////////////////////
+
+/// Returns a string containing a time difference in a human-readable format.
+/// Uses a static buffer, so be careful.
+static const char *gr_ago(Milliseconds diff) {
+ static char result[32];
+ double seconds = (double)diff / 1000.0;
+ if (seconds < 1)
+ snprintf(result, sizeof(result), "%.2f sec ago", seconds);
+ else if (seconds < 60)
+ snprintf(result, sizeof(result), "%d sec ago", (int)seconds);
+ else if (seconds < 3600)
+ snprintf(result, sizeof(result), "%d min %d sec ago",
+ (int)(seconds / 60), (int)(seconds) % 60);
+ else {
+ snprintf(result, sizeof(result), "%d hr %d min %d sec ago",
+ (int)(seconds / 3600), (int)(seconds) % 3600 / 60,
+ (int)(seconds) % 60);
+ }
+ return result;
+}
+
+/// Prints to `file` with an indentation of `ind` spaces.
+static void fprintf_ind(FILE *file, int ind, const char *format, ...) {
+ fprintf(file, "%*s", ind, "");
+ va_list args;
+ va_start(args, format);
+ vfprintf(file, format, args);
+ va_end(args);
+}
+
+/// Dumps the image info to `file` with an indentation of `ind` spaces.
+static void gr_dump_image_info(FILE *file, Image *img, int ind) {
+ if (!img) {
+ fprintf_ind(file, ind, "Image is NULL\n");
+ return;
+ }
+ Milliseconds now = gr_now_ms();
+ fprintf_ind(file, ind, "Image %u\n", img->image_id);
+ ind += 4;
+ fprintf_ind(file, ind, "number: %u\n", img->image_number);
+ fprintf_ind(file, ind, "global command index: %lu\n",
+ img->global_command_index);
+ fprintf_ind(file, ind, "accessed: %ld %s\n", img->atime,
+ gr_ago(now - img->atime));
+ fprintf_ind(file, ind, "pix size: %ux%u\n", img->pix_width,
+ img->pix_height);
+ fprintf_ind(file, ind, "cur frame start time: %ld %s\n",
+ img->current_frame_time,
+ gr_ago(now - img->current_frame_time));
+ if (img->next_redraw)
+ fprintf_ind(file, ind, "next redraw: %ld in %ld ms\n",
+ img->next_redraw, img->next_redraw - now);
+ fprintf_ind(file, ind, "total disk size: %u KiB\n",
+ img->total_disk_size / 1024);
+ fprintf_ind(file, ind, "total duration: %d\n", img->total_duration);
+ fprintf_ind(file, ind, "frames: %d\n", gr_last_frame_index(img));
+ fprintf_ind(file, ind, "cur frame: %d\n", img->current_frame);
+ fprintf_ind(file, ind, "animation state: %d\n", img->animation_state);
+ fprintf_ind(file, ind, "default_placement: %u\n",
+ img->default_placement);
+}
+
+/// Dumps the frame info to `file` with an indentation of `ind` spaces.
+static void gr_dump_frame_info(FILE *file, ImageFrame *frame, int ind) {
+ if (!frame) {
+ fprintf_ind(file, ind, "Frame is NULL\n");
+ return;
+ }
+ Milliseconds now = gr_now_ms();
+ fprintf_ind(file, ind, "Frame %d\n", frame->index);
+ ind += 4;
+ if (frame->index == 0) {
+ fprintf_ind(file, ind, "NOT INITIALIZED\n");
+ return;
+ }
+ if (frame->uploading_failure)
+ fprintf_ind(file, ind, "uploading failure: %s\n",
+ image_uploading_failure_strings
+ [frame->uploading_failure]);
+ fprintf_ind(file, ind, "gap: %d\n", frame->gap);
+ fprintf_ind(file, ind, "accessed: %ld %s\n", frame->atime,
+ gr_ago(now - frame->atime));
+ fprintf_ind(file, ind, "data pix size: %ux%u\n", frame->data_pix_width,
+ frame->data_pix_height);
+ char filename[MAX_FILENAME_SIZE];
+ gr_get_frame_filename(frame, filename, MAX_FILENAME_SIZE);
+ if (access(filename, F_OK) != -1)
+ fprintf_ind(file, ind, "file: %s\n",
+ sanitized_filename(filename));
+ else
+ fprintf_ind(file, ind, "not on disk\n");
+ fprintf_ind(file, ind, "disk size: %u KiB\n", frame->disk_size / 1024);
+ if (frame->imlib_object) {
+ unsigned ram_size = gr_frame_current_ram_size(frame);
+ fprintf_ind(file, ind,
+ "loaded into ram, size: %d "
+ "KiB\n",
+ ram_size / 1024);
+ } else {
+ fprintf_ind(file, ind, "not loaded into ram\n");
+ }
+}
+
+/// Dumps the placement info to `file` with an indentation of `ind` spaces.
+static void gr_dump_placement_info(FILE *file, ImagePlacement *placement,
+ int ind) {
+ if (!placement) {
+ fprintf_ind(file, ind, "Placement is NULL\n");
+ return;
+ }
+ Milliseconds now = gr_now_ms();
+ fprintf_ind(file, ind, "Placement %u\n", placement->placement_id);
+ ind += 4;
+ fprintf_ind(file, ind, "accessed: %ld %s\n", placement->atime,
+ gr_ago(now - placement->atime));
+ fprintf_ind(file, ind, "scale_mode: %u\n", placement->scale_mode);
+ fprintf_ind(file, ind, "size: %u cols x %u rows\n", placement->cols,
+ placement->rows);
+ fprintf_ind(file, ind, "cell size: %ux%u\n", placement->scaled_cw,
+ placement->scaled_ch);
+ fprintf_ind(file, ind, "ram per frame: %u KiB\n",
+ gr_placement_single_frame_ram_size(placement) / 1024);
+ unsigned ram_size = gr_placement_current_ram_size(placement);
+ fprintf_ind(file, ind, "ram size: %d KiB\n", ram_size / 1024);
+}
+
+/// Dumps placement pixmaps to `file` with an indentation of `ind` spaces.
+static void gr_dump_placement_pixmaps(FILE *file, ImagePlacement *placement,
+ int ind) {
+ if (!placement)
+ return;
+ int frameidx = 1;
+ foreach_pixmap(*placement, pixmap, {
+ fprintf_ind(file, ind, "Frame %d pixmap %lu\n", frameidx,
+ pixmap);
+ ++frameidx;
+ });
+}
+
+/// Dumps the internal state (images and placements) to stderr.
+void gr_dump_state() {
+ FILE *file = stderr;
+ int ind = 0;
+ fprintf_ind(file, ind, "======= Graphics module state dump =======\n");
+ fprintf_ind(file, ind,
+ "sizeof(Image) = %lu sizeof(ImageFrame) = %lu "
+ "sizeof(ImagePlacement) = %lu\n",
+ sizeof(Image), sizeof(ImageFrame), sizeof(ImagePlacement));
+ fprintf_ind(file, ind, "Image count: %u\n", kh_size(images));
+ fprintf_ind(file, ind, "Placement count: %u\n", total_placement_count);
+ fprintf_ind(file, ind, "Estimated RAM usage: %ld KiB\n",
+ images_ram_size / 1024);
+ fprintf_ind(file, ind, "Estimated Disk usage: %ld KiB\n",
+ images_disk_size / 1024);
+
+ Milliseconds now = gr_now_ms();
+
+ int64_t images_ram_size_computed = 0;
+ int64_t images_disk_size_computed = 0;
+
+ Image *img = NULL;
+ ImagePlacement *placement = NULL;
+ kh_foreach_value(images, img, {
+ fprintf_ind(file, ind, "----------------\n");
+ gr_dump_image_info(file, img, 0);
+ int64_t total_disk_size_computed = 0;
+ int total_duration_computed = 0;
+ foreach_frame(*img, frame, {
+ gr_dump_frame_info(file, frame, 4);
+ if (frame->image != img)
+ fprintf_ind(file, 8,
+ "ERROR: WRONG IMAGE POINTER\n");
+ total_duration_computed += frame->gap;
+ images_disk_size_computed += frame->disk_size;
+ total_disk_size_computed += frame->disk_size;
+ if (frame->imlib_object)
+ images_ram_size_computed +=
+ gr_frame_current_ram_size(frame);
+ });
+ if (img->total_disk_size != total_disk_size_computed) {
+ fprintf_ind(file, ind,
+ " ERROR: total_disk_size is %u, but "
+ "computed value is %ld\n",
+ img->total_disk_size, total_disk_size_computed);
+ }
+ if (img->total_duration != total_duration_computed) {
+ fprintf_ind(file, ind,
+ " ERROR: total_duration is %d, but computed "
+ "value is %d\n",
+ img->total_duration, total_duration_computed);
+ }
+ kh_foreach_value(img->placements, placement, {
+ gr_dump_placement_info(file, placement, 4);
+ if (placement->image != img)
+ fprintf_ind(file, 8,
+ "ERROR: WRONG IMAGE POINTER\n");
+ fprintf_ind(file, 8,
+ "Pixmaps:\n");
+ gr_dump_placement_pixmaps(file, placement, 12);
+ unsigned ram_size =
+ gr_placement_current_ram_size(placement);
+ images_ram_size_computed += ram_size;
+ });
+ });
+ if (images_ram_size != images_ram_size_computed) {
+ fprintf_ind(file, ind,
+ "ERROR: images_ram_size is %ld, but computed value "
+ "is %ld\n",
+ images_ram_size, images_ram_size_computed);
+ }
+ if (images_disk_size != images_disk_size_computed) {
+ fprintf_ind(file, ind,
+ "ERROR: images_disk_size is %ld, but computed value "
+ "is %ld\n",
+ images_disk_size, images_disk_size_computed);
+ }
+ fprintf_ind(file, ind, "===========================================\n");
+}
+
+/// Executes `command` with the name of the file corresponding to `image_id` as
+/// the argument. Executes xmessage with an error message on failure.
+// TODO: Currently we do this for the first frame only. Not sure what to do with
+// animations.
+void gr_preview_image(uint32_t image_id, const char *exec) {
+ char command[256];
+ size_t len;
+ Image *img = gr_find_image(image_id);
+ if (img) {
+ ImageFrame *frame = &img->first_frame;
+ char filename[MAX_FILENAME_SIZE];
+ gr_get_frame_filename(frame, filename, MAX_FILENAME_SIZE);
+ if (frame->disk_size == 0) {
+ len = snprintf(command, 255,
+ "xmessage 'Image with id=%u is not "
+ "fully copied to %s'",
+ image_id, sanitized_filename(filename));
+ } else {
+ len = snprintf(command, 255, "%s %s &", exec,
+ sanitized_filename(filename));
+ }
+ } else {
+ len = snprintf(command, 255,
+ "xmessage 'Cannot find image with id=%u'",
+ image_id);
+ }
+ if (len > 255) {
+ fprintf(stderr, "error: command too long: %s\n", command);
+ snprintf(command, 255, "xmessage 'error: command too long'");
+ }
+ if (system(command) != 0) {
+ fprintf(stderr, "error: could not execute command %s\n",
+ command);
+ }
+}
+
+/// Executes `<st> -e less <file>` where <file> is the name of a temporary file
+/// containing the information about an image and placement, and <st> is
+/// specified with `st_executable`.
+void gr_show_image_info(uint32_t image_id, uint32_t placement_id,
+ uint32_t imgcol, uint32_t imgrow,
+ char is_classic_placeholder, int32_t diacritic_count,
+ char *st_executable) {
+ char filename[MAX_FILENAME_SIZE];
+ snprintf(filename, sizeof(filename), "%s/info-%u", cache_dir, image_id);
+ FILE *file = fopen(filename, "w");
+ if (!file) {
+ perror("fopen");
+ return;
+ }
+ // Basic information about the cell.
+ fprintf(file, "image_id = %u = 0x%08X\n", image_id, image_id);
+ fprintf(file, "placement_id = %u = 0x%08X\n", placement_id, placement_id);
+ fprintf(file, "column = %d, row = %d\n", imgcol, imgrow);
+ fprintf(file, "classic/unicode placeholder = %s\n",
+ is_classic_placeholder ? "classic" : "unicode");
+ fprintf(file, "original diacritic count = %d\n", diacritic_count);
+ // Information about the image and the placement.
+ Image *img = gr_find_image(image_id);
+ ImagePlacement *placement = gr_find_placement(img, placement_id);
+ gr_dump_image_info(file, img, 0);
+ gr_dump_placement_info(file, placement, 0);
+ if (img) {
+ fprintf(file, "Frames:\n");
+ foreach_frame(*img, frame, {
+ gr_dump_frame_info(file, frame, 4);
+ });
+ }
+ if (placement) {
+ fprintf(file, "Placement pixmaps:\n");
+ gr_dump_placement_pixmaps(file, placement, 4);
+ }
+ fclose(file);
+ char *argv[] = {st_executable, "-e", "less", filename, NULL};
+ if (posix_spawnp(NULL, st_executable, NULL, NULL, argv, environ) != 0) {
+ perror("posix_spawnp");
+ return;
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Appending and displaying image rectangles.
+////////////////////////////////////////////////////////////////////////////////
+
+/// Displays debug information in the rectangle using colors col1 and col2.
+static void gr_displayinfo(Drawable buf, ImageRect *rect, int col1, int col2,
+ const char *message) {
+ int w_pix = (rect->img_end_col - rect->img_start_col) * rect->cw;
+ int h_pix = (rect->img_end_row - rect->img_start_row) * rect->ch;
+ Display *disp = imlib_context_get_display();
+ GC gc = XCreateGC(disp, buf, 0, NULL);
+ char info[MAX_INFO_LEN];
+ if (rect->placement_id)
+ snprintf(info, MAX_INFO_LEN, "%s%u/%u [%d:%d)x[%d:%d)", message,
+ rect->image_id, rect->placement_id,
+ rect->img_start_col, rect->img_end_col,
+ rect->img_start_row, rect->img_end_row);
+ else
+ snprintf(info, MAX_INFO_LEN, "%s%u [%d:%d)x[%d:%d)", message,
+ rect->image_id, rect->img_start_col, rect->img_end_col,
+ rect->img_start_row, rect->img_end_row);
+ XSetForeground(disp, gc, col1);
+ XDrawString(disp, buf, gc, rect->screen_x_pix + 4,
+ rect->screen_y_pix + h_pix - 3, info, strlen(info));
+ XSetForeground(disp, gc, col2);
+ XDrawString(disp, buf, gc, rect->screen_x_pix + 2,
+ rect->screen_y_pix + h_pix - 5, info, strlen(info));
+ XFreeGC(disp, gc);
+}
+
+/// Draws a rectangle (bounding box) for debugging.
+static void gr_showrect(Drawable buf, ImageRect *rect) {
+ int w_pix = (rect->img_end_col - rect->img_start_col) * rect->cw;
+ int h_pix = (rect->img_end_row - rect->img_start_row) * rect->ch;
+ Display *disp = imlib_context_get_display();
+ GC gc = XCreateGC(disp, buf, 0, NULL);
+ XSetForeground(disp, gc, 0xFF00FF00);
+ XDrawRectangle(disp, buf, gc, rect->screen_x_pix, rect->screen_y_pix,
+ w_pix - 1, h_pix - 1);
+ XSetForeground(disp, gc, 0xFFFF0000);
+ XDrawRectangle(disp, buf, gc, rect->screen_x_pix + 1,
+ rect->screen_y_pix + 1, w_pix - 3, h_pix - 3);
+ XFreeGC(disp, gc);
+}
+
+/// Updates the next redraw time for the given row. Resizes the
+/// next_redraw_times array if needed.
+static void gr_update_next_redraw_time(int row, Milliseconds next_redraw) {
+ if (next_redraw == 0)
+ return;
+ if (row >= kv_size(next_redraw_times)) {
+ size_t old_size = kv_size(next_redraw_times);
+ kv_a(Milliseconds, next_redraw_times, row);
+ for (size_t i = old_size; i <= row; ++i)
+ kv_A(next_redraw_times, i) = 0;
+ }
+ Milliseconds old_value = kv_A(next_redraw_times, row);
+ if (old_value == 0 || old_value > next_redraw)
+ kv_A(next_redraw_times, row) = next_redraw;
+}
+
+/// Draws the given part of an image.
+static void gr_drawimagerect(Drawable buf, ImageRect *rect) {
+ ImagePlacement *placement =
+ gr_find_image_and_placement(rect->image_id, rect->placement_id);
+ // If the image does not exist or image display is switched off, draw
+ // the bounding box.
+ if (!placement || !graphics_display_images) {
+ gr_showrect(buf, rect);
+ if (graphics_debug_mode == GRAPHICS_DEBUG_LOG_AND_BOXES)
+ gr_displayinfo(buf, rect, 0xFF000000, 0xFFFFFFFF, "");
+ return;
+ }
+
+ Image *img = placement->image;
+
+ if (img->last_redraw < drawing_start_time) {
+ // This is the first time we draw this image in this redraw
+ // cycle. Update the frame index we are going to display. Note
+ // that currently all image placements are synchronized.
+ int old_frame = img->current_frame;
+ gr_update_frame_index(img, drawing_start_time);
+ img->last_redraw = drawing_start_time;
+ }
+
+ // Adjust next redraw times for the rows of this image rect.
+ if (img->next_redraw) {
+ for (int row = rect->screen_y_row;
+ row <= rect->screen_y_row + rect->img_end_row -
+ rect->img_start_row - 1; ++row) {
+ gr_update_next_redraw_time(
+ row, img->next_redraw);
+ }
+ }
+
+ // Load the frame.
+ Pixmap pixmap = gr_load_pixmap(placement, img->current_frame, rect->cw,
+ rect->ch);
+
+ // If the image couldn't be loaded, display the bounding box.
+ if (!pixmap) {
+ gr_showrect(buf, rect);
+ if (graphics_debug_mode == GRAPHICS_DEBUG_LOG_AND_BOXES)
+ gr_displayinfo(buf, rect, 0xFF000000, 0xFFFFFFFF, "");
+ return;
+ }
+
+ int src_x = rect->img_start_col * rect->cw;
+ int src_y = rect->img_start_row * rect->ch;
+ int width = (rect->img_end_col - rect->img_start_col) * rect->cw;
+ int height = (rect->img_end_row - rect->img_start_row) * rect->ch;
+ int dst_x = rect->screen_x_pix;
+ int dst_y = rect->screen_y_pix;
+
+ // Display the image.
+ Display *disp = imlib_context_get_display();
+ Visual *vis = imlib_context_get_visual();
+
+ // Create an xrender picture for the window.
+ XRenderPictFormat *win_format =
+ XRenderFindVisualFormat(disp, vis);
+ Picture window_pic =
+ XRenderCreatePicture(disp, buf, win_format, 0, NULL);
+
+ // If needed, invert the image pixmap. Note that this naive approach of
+ // inverting the pixmap is not entirely correct, because the pixmap is
+ // premultiplied. But the result is good enough to visually indicate
+ // selection.
+ if (rect->reverse) {
+ unsigned pixmap_w =
+ (unsigned)placement->cols * placement->scaled_cw;
+ unsigned pixmap_h =
+ (unsigned)placement->rows * placement->scaled_ch;
+ Pixmap invpixmap =
+ XCreatePixmap(disp, buf, pixmap_w, pixmap_h, 32);
+ XGCValues gcv = {.function = GXcopyInverted};
+ GC gc = XCreateGC(disp, invpixmap, GCFunction, &gcv);
+ XCopyArea(disp, pixmap, invpixmap, gc, 0, 0, pixmap_w,
+ pixmap_h, 0, 0);
+ XFreeGC(disp, gc);
+ pixmap = invpixmap;
+ }
+
+ // Create a picture for the image pixmap.
+ XRenderPictFormat *pic_format =
+ XRenderFindStandardFormat(disp, PictStandardARGB32);
+ Picture pixmap_pic =
+ XRenderCreatePicture(disp, pixmap, pic_format, 0, NULL);
+
+ // Composite the image onto the window. In the reverse mode we ignore
+ // the alpha channel of the image because the naive inversion above
+ // seems to invert the alpha channel as well.
+ int pictop = rect->reverse ? PictOpSrc : PictOpOver;
+ XRenderComposite(disp, pictop, pixmap_pic, 0, window_pic,
+ src_x, src_y, src_x, src_y, dst_x, dst_y, width,
+ height);
+
+ // Free resources
+ XRenderFreePicture(disp, pixmap_pic);
+ XRenderFreePicture(disp, window_pic);
+ if (rect->reverse)
+ XFreePixmap(disp, pixmap);
+
+ // In debug mode always draw bounding boxes and print info.
+ if (graphics_debug_mode == GRAPHICS_DEBUG_LOG_AND_BOXES) {
+ gr_showrect(buf, rect);
+ gr_displayinfo(buf, rect, 0xFF000000, 0xFFFFFFFF, "");
+ }
+}
+
+/// Removes the given image rectangle.
+static void gr_freerect(ImageRect *rect) { memset(rect, 0, sizeof(ImageRect)); }
+
+/// Returns the bottom coordinate of the rect.
+static int gr_getrectbottom(ImageRect *rect) {
+ return rect->screen_y_pix +
+ (rect->img_end_row - rect->img_start_row) * rect->ch;
+}
+
+/// Prepare for image drawing. `cw` and `ch` are dimensions of the cell.
+void gr_start_drawing(Drawable buf, int cw, int ch) {
+ current_cw = cw;
+ current_ch = ch;
+ this_redraw_cycle_loaded_files = 0;
+ this_redraw_cycle_loaded_pixmaps = 0;
+ drawing_start_time = gr_now_ms();
+ imlib_context_set_drawable(buf);
+}
+
+/// Finish image drawing. This functions will draw all the rectangles left to
+/// draw.
+void gr_finish_drawing(Drawable buf) {
+ // Draw and then delete all known image rectangles.
+ for (size_t i = 0; i < MAX_IMAGE_RECTS; ++i) {
+ ImageRect *rect = &image_rects[i];
+ if (!rect->image_id)
+ continue;
+ gr_drawimagerect(buf, rect);
+ gr_freerect(rect);
+ }
+
+ // Compute the delay until the next redraw as the minimum of the next
+ // redraw delays for all rows.
+ Milliseconds drawing_end_time = gr_now_ms();
+ graphics_next_redraw_delay = INT_MAX;
+ for (int row = 0; row < kv_size(next_redraw_times); ++row) {
+ Milliseconds row_next_redraw = kv_A(next_redraw_times, row);
+ if (row_next_redraw > 0) {
+ int delay = MAX(graphics_animation_min_delay,
+ row_next_redraw - drawing_end_time);
+ graphics_next_redraw_delay =
+ MIN(graphics_next_redraw_delay, delay);
+ }
+ }
+
+ // In debug mode display additional info.
+ if (graphics_debug_mode) {
+ int milliseconds = drawing_end_time - drawing_start_time;
+
+ Display *disp = imlib_context_get_display();
+ GC gc = XCreateGC(disp, buf, 0, NULL);
+ const char *debug_mode_str =
+ graphics_debug_mode == GRAPHICS_DEBUG_LOG_AND_BOXES
+ ? "(boxes shown) "
+ : "";
+ int redraw_delay = graphics_next_redraw_delay == INT_MAX
+ ? -1
+ : graphics_next_redraw_delay;
+ char info[MAX_INFO_LEN];
+ snprintf(info, MAX_INFO_LEN,
+ "%sRender time: %d ms ram %ld K disk %ld K count "
+ "%d cell %dx%d delay %d",
+ debug_mode_str, milliseconds, images_ram_size / 1024,
+ images_disk_size / 1024, kh_size(images), current_cw,
+ current_ch, redraw_delay);
+ XSetForeground(disp, gc, 0xFF000000);
+ XFillRectangle(disp, buf, gc, 0, 0, 600, 16);
+ XSetForeground(disp, gc, 0xFFFFFFFF);
+ XDrawString(disp, buf, gc, 0, 14, info, strlen(info));
+ XFreeGC(disp, gc);
+
+ if (milliseconds > 0) {
+ fprintf(stderr, "%s (loaded %d files, %d pixmaps)\n",
+ info, this_redraw_cycle_loaded_files,
+ this_redraw_cycle_loaded_pixmaps);
+ }
+ }
+
+ // Check the limits in case we have used too much ram for placements.
+ gr_check_limits();
+}
+
+// Add an image rectangle to the list of rectangles to draw.
+void gr_append_imagerect(Drawable buf, uint32_t image_id, uint32_t placement_id,
+ int img_start_col, int img_end_col, int img_start_row,
+ int img_end_row, int x_col, int y_row, int x_pix,
+ int y_pix, int cw, int ch, int reverse) {
+ current_cw = cw;
+ current_ch = ch;
+
+ ImageRect new_rect;
+ new_rect.image_id = image_id;
+ new_rect.placement_id = placement_id;
+ new_rect.img_start_col = img_start_col;
+ new_rect.img_end_col = img_end_col;
+ new_rect.img_start_row = img_start_row;
+ new_rect.img_end_row = img_end_row;
+ new_rect.screen_y_row = y_row;
+ new_rect.screen_x_pix = x_pix;
+ new_rect.screen_y_pix = y_pix;
+ new_rect.ch = ch;
+ new_rect.cw = cw;
+ new_rect.reverse = reverse;
+
+ // Display some red text in debug mode.
+ if (graphics_debug_mode == GRAPHICS_DEBUG_LOG_AND_BOXES)
+ gr_displayinfo(buf, &new_rect, 0xFF000000, 0xFFFF0000, "? ");
+
+ // If it's the empty image (image_id=0) or an empty rectangle, do
+ // nothing.
+ if (image_id == 0 || img_end_col - img_start_col <= 0 ||
+ img_end_row - img_start_row <= 0)
+ return;
+ // Try to find a rect to merge with.
+ ImageRect *free_rect = NULL;
+ for (size_t i = 0; i < MAX_IMAGE_RECTS; ++i) {
+ ImageRect *rect = &image_rects[i];
+ if (rect->image_id == 0) {
+ if (!free_rect)
+ free_rect = rect;
+ continue;
+ }
+ if (rect->image_id != image_id ||
+ rect->placement_id != placement_id || rect->cw != cw ||
+ rect->ch != ch || rect->reverse != reverse)
+ continue;
+ // We only support the case when the new stripe is added to the
+ // bottom of an existing rectangle and they are perfectly
+ // aligned.
+ if (rect->img_end_row == img_start_row &&
+ gr_getrectbottom(rect) == y_pix) {
+ if (rect->img_start_col == img_start_col &&
+ rect->img_end_col == img_end_col &&
+ rect->screen_x_pix == x_pix) {
+ rect->img_end_row = img_end_row;
+ return;
+ }
+ }
+ }
+ // If we haven't merged the new rect with any existing rect, and there
+ // is no free rect, we have to render one of the existing rects.
+ if (!free_rect) {
+ for (size_t i = 0; i < MAX_IMAGE_RECTS; ++i) {
+ ImageRect *rect = &image_rects[i];
+ if (!free_rect || gr_getrectbottom(free_rect) >
+ gr_getrectbottom(rect))
+ free_rect = rect;
+ }
+ gr_drawimagerect(buf, free_rect);
+ gr_freerect(free_rect);
+ }
+ // Start a new rectangle in `free_rect`.
+ *free_rect = new_rect;
+}
+
+/// Mark rows containing animations as dirty if it's time to redraw them. Must
+/// be called right after `gr_start_drawing`.
+void gr_mark_dirty_animations(int *dirty, int rows) {
+ if (rows < kv_size(next_redraw_times))
+ kv_size(next_redraw_times) = rows;
+ if (rows * 2 < kv_max(next_redraw_times))
+ kv_resize(Milliseconds, next_redraw_times, rows);
+ for (int i = 0; i < MIN(rows, kv_size(next_redraw_times)); ++i) {
+ if (dirty[i]) {
+ kv_A(next_redraw_times, i) = 0;
+ continue;
+ }
+ Milliseconds next_update = kv_A(next_redraw_times, i);
+ if (next_update > 0 && next_update <= drawing_start_time) {
+ dirty[i] = 1;
+ kv_A(next_redraw_times, i) = 0;
+ }
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Command parsing and handling.
+////////////////////////////////////////////////////////////////////////////////
+
+/// A parsed kitty graphics protocol command.
+typedef struct {
+ /// The command itself, without the 'G'.
+ char *command;
+ /// The payload (after ';').
+ char *payload;
+ /// 'a=', may be 't', 'q', 'f', 'T', 'p', 'd', 'a'.
+ char action;
+ /// 'q=', 1 to suppress OK response, 2 to suppress errors too.
+ int quiet;
+ /// 'f=', use 24 or 32 for raw pixel data, 100 to autodetect with
+ /// imlib2. If 'f=0', will try to load with imlib2, then fallback to
+ /// 32-bit pixel data.
+ int format;
+ /// 'o=', may be 'z' for RFC 1950 ZLIB.
+ int compression;
+ /// 't=', may be 'f', 't' or 'd'.
+ char transmission_medium;
+ /// 'd='
+ char delete_specifier;
+ /// 's=', 'v=', if 'a=t' or 'a=T', used only when 'f=24' or 'f=32'.
+ /// When 'a=f', this is the size of the frame rectangle when composed on
+ /// top of another frame.
+ int frame_pix_width, frame_pix_height;
+ /// 'x=', 'y=' - top-left corner of the source rectangle.
+ int src_pix_x, src_pix_y;
+ /// 'w=', 'h=' - width and height of the source rectangle.
+ int src_pix_width, src_pix_height;
+ /// 'r=', 'c='
+ int rows, columns;
+ /// 'i='
+ uint32_t image_id;
+ /// 'I='
+ uint32_t image_number;
+ /// 'p='
+ uint32_t placement_id;
+ /// 'm=', may be 0 or 1.
+ int more;
+ /// True if either 'm=0' or 'm=1' is specified.
+ char is_data_transmission;
+ /// True if turns out that this command is a continuation of a data
+ /// transmission and not the first one for this image. Populated by
+ /// `gr_handle_transmit_command`.
+ char is_direct_transmission_continuation;
+ /// 'S=', used to check the size of uploaded data.
+ int size;
+ /// 'U=', whether it's a virtual placement for Unicode placeholders.
+ int virtual;
+ /// 'C=', if true, do not move the cursor when displaying this placement
+ /// (non-virtual placements only).
+ char do_not_move_cursor;
+ // ---------------------------------------------------------------------
+ // Animation-related fields. Their keys often overlap with keys of other
+ // commands, so these make sense only if the action is 'a=f' (frame
+ // transmission) or 'a=a' (animation control).
+ //
+ // 'x=' and 'y=', the relative position of the frame image when it's
+ // composed on top of another frame.
+ int frame_dst_pix_x, frame_dst_pix_y;
+ /// 'X=', 'X=1' to replace colors instead of alpha blending on top of
+ /// the background color or frame.
+ char replace_instead_of_blending;
+ /// 'Y=', the background color in the 0xRRGGBBAA format (still
+ /// transmitted as a decimal number).
+ uint32_t background_color;
+ /// (Only for 'a=f'). 'c=', the 1-based index of the background frame.
+ int background_frame;
+ /// (Only for 'a=a'). 'c=', sets the index of the current frame.
+ int current_frame;
+ /// 'r=', the 1-based index of the frame to edit.
+ int edit_frame;
+ /// 'z=', the duration of the frame. Zero if not specified, negative if
+ /// the frame is gapless (i.e. skipped).
+ int gap;
+ /// (Only for 'a=a'). 's=', if non-zero, sets the state of the
+ /// animation, 1 to stop, 2 to run in loading mode, 3 to loop.
+ int animation_state;
+ /// (Only for 'a=a'). 'v=', if non-zero, sets the number of times the
+ /// animation will loop. 1 to loop infinitely, N to loop N-1 times.
+ int loops;
+} GraphicsCommand;
+
+/// Replaces all non-printed characters in `str` with '?' and truncates the
+/// string to `max_size`, maybe inserting ellipsis at the end.
+static void sanitize_str(char *str, size_t max_size) {
+ assert(max_size >= 4);
+ for (size_t i = 0; i < max_size; ++i) {
+ unsigned c = str[i];
+ if (c == '\0')
+ return;
+ if (c >= 128 || !isprint(c))
+ str[i] = '?';
+ }
+ str[max_size - 1] = '\0';
+ str[max_size - 2] = '.';
+ str[max_size - 3] = '.';
+ str[max_size - 4] = '.';
+}
+
+/// A non-destructive version of `sanitize_str`. Uses a static buffer, so be
+/// careful.
+static const char *sanitized_filename(const char *str) {
+ static char buf[MAX_FILENAME_SIZE];
+ strncpy(buf, str, sizeof(buf));
+ sanitize_str(buf, sizeof(buf));
+ return buf;
+}
+
+/// Creates a response to the current command in `graphics_command_result`.
+static void gr_createresponse(uint32_t image_id, uint32_t image_number,
+ uint32_t placement_id, const char *msg) {
+ if (!image_id && !image_number && !placement_id) {
+ // Nobody expects the response in this case, so just print it to
+ // stderr.
+ fprintf(stderr,
+ "error: No image id or image number or placement_id, "
+ "but still there is a response: %s\n",
+ msg);
+ return;
+ }
+ char *buf = graphics_command_result.response;
+ size_t maxlen = MAX_GRAPHICS_RESPONSE_LEN;
+ size_t written;
+ written = snprintf(buf, maxlen, "\033_G");
+ buf += written;
+ maxlen -= written;
+ if (image_id) {
+ written = snprintf(buf, maxlen, "i=%u,", image_id);
+ buf += written;
+ maxlen -= written;
+ }
+ if (image_number) {
+ written = snprintf(buf, maxlen, "I=%u,", image_number);
+ buf += written;
+ maxlen -= written;
+ }
+ if (placement_id) {
+ written = snprintf(buf, maxlen, "p=%u,", placement_id);
+ buf += written;
+ maxlen -= written;
+ }
+ buf[-1] = ';';
+ written = snprintf(buf, maxlen, "%s\033\\", msg);
+ buf += written;
+ maxlen -= written;
+ buf[-2] = '\033';
+ buf[-1] = '\\';
+}
+
+/// Creates the 'OK' response to the current command, unless suppressed or a
+/// non-final data transmission.
+static void gr_reportsuccess_cmd(GraphicsCommand *cmd) {
+ if (cmd->quiet < 1 && !cmd->more)
+ gr_createresponse(cmd->image_id, cmd->image_number,
+ cmd->placement_id, "OK");
+}
+
+/// Creates the 'OK' response to the current command (unless suppressed).
+static void gr_reportsuccess_frame(ImageFrame *frame) {
+ uint32_t id = frame->image->query_id ? frame->image->query_id
+ : frame->image->image_id;
+ if (frame->quiet < 1)
+ gr_createresponse(id, frame->image->image_number,
+ frame->image->initial_placement_id, "OK");
+}
+
+/// Creates an error response to the current command (unless suppressed).
+static void gr_reporterror_cmd(GraphicsCommand *cmd, const char *format, ...) {
+ char errmsg[MAX_GRAPHICS_RESPONSE_LEN];
+ graphics_command_result.error = 1;
+ va_list args;
+ va_start(args, format);
+ vsnprintf(errmsg, MAX_GRAPHICS_RESPONSE_LEN, format, args);
+ va_end(args);
+
+ fprintf(stderr, "%s in command: %s\n", errmsg, cmd->command);
+ if (cmd->quiet < 2)
+ gr_createresponse(cmd->image_id, cmd->image_number,
+ cmd->placement_id, errmsg);
+}
+
+/// Creates an error response to the current command (unless suppressed).
+static void gr_reporterror_frame(ImageFrame *frame, const char *format, ...) {
+ char errmsg[MAX_GRAPHICS_RESPONSE_LEN];
+ graphics_command_result.error = 1;
+ va_list args;
+ va_start(args, format);
+ vsnprintf(errmsg, MAX_GRAPHICS_RESPONSE_LEN, format, args);
+ va_end(args);
+
+ if (!frame) {
+ fprintf(stderr, "%s\n", errmsg);
+ gr_createresponse(0, 0, 0, errmsg);
+ } else {
+ uint32_t id = frame->image->query_id ? frame->image->query_id
+ : frame->image->image_id;
+ fprintf(stderr, "%s id=%u\n", errmsg, id);
+ if (frame->quiet < 2)
+ gr_createresponse(id, frame->image->image_number,
+ frame->image->initial_placement_id,
+ errmsg);
+ }
+}
+
+/// Loads an image and creates a success/failure response. Returns `frame`, or
+/// NULL if it's a query action and the image was deleted.
+static ImageFrame *gr_loadimage_and_report(ImageFrame *frame) {
+ gr_load_imlib_object(frame);
+ if (!frame->imlib_object) {
+ gr_reporterror_frame(frame, "EBADF: could not load image");
+ } else {
+ gr_reportsuccess_frame(frame);
+ }
+ // If it was a query action, discard the image.
+ if (frame->image->query_id) {
+ gr_delete_image(frame->image);
+ return NULL;
+ }
+ return frame;
+}
+
+/// Creates an appropriate uploading failure response to the current command.
+static void gr_reportuploaderror(ImageFrame *frame) {
+ switch (frame->uploading_failure) {
+ case 0:
+ return;
+ case ERROR_CANNOT_OPEN_CACHED_FILE:
+ gr_reporterror_frame(frame,
+ "EIO: could not create a file for image");
+ break;
+ case ERROR_OVER_SIZE_LIMIT:
+ gr_reporterror_frame(
+ frame,
+ "EFBIG: the size of the uploaded image exceeded "
+ "the image size limit %u",
+ graphics_max_single_image_file_size);
+ break;
+ case ERROR_UNEXPECTED_SIZE:
+ gr_reporterror_frame(frame,
+ "EINVAL: the size of the uploaded image %u "
+ "doesn't match the expected size %u",
+ frame->disk_size, frame->expected_size);
+ break;
+ };
+}
+
+/// Displays a non-virtual placement. This functions records the information in
+/// `graphics_command_result`, the placeholder itself is created by the terminal
+/// after handling the current command in the graphics module.
+static void gr_display_nonvirtual_placement(ImagePlacement *placement) {
+ if (placement->virtual)
+ return;
+ if (placement->image->first_frame.status < STATUS_RAM_LOADING_SUCCESS)
+ return;
+ // Infer the placement size if needed.
+ gr_infer_placement_size_maybe(placement);
+ // Populate the information about the placeholder which will be created
+ // by the terminal.
+ graphics_command_result.create_placeholder = 1;
+ graphics_command_result.placeholder.image_id = placement->image->image_id;
+ graphics_command_result.placeholder.placement_id = placement->placement_id;
+ graphics_command_result.placeholder.columns = placement->cols;
+ graphics_command_result.placeholder.rows = placement->rows;
+ graphics_command_result.placeholder.do_not_move_cursor =
+ placement->do_not_move_cursor;
+ GR_LOG("Creating a placeholder for %u/%u %d x %d\n",
+ placement->image->image_id, placement->placement_id,
+ placement->cols, placement->rows);
+}
+
+/// Marks the rows that are occupied by the image as dirty.
+static void gr_schedule_image_redraw(Image *img) {
+ if (!img)
+ return;
+ gr_schedule_image_redraw_by_id(img->image_id);
+}
+
+/// Appends data from `payload` to the frame `frame` when using direct
+/// transmission. Note that we report errors only for the final command
+/// (`!more`) to avoid spamming the client. If the frame is not specified, use
+/// the image id and frame index we are currently uploading.
+static void gr_append_data(ImageFrame *frame, const char *payload, int more) {
+ if (!frame) {
+ Image *img = gr_find_image(current_upload_image_id);
+ frame = gr_get_frame(img, current_upload_frame_index);
+ GR_LOG("Appending data to image %u frame %d\n",
+ current_upload_image_id, current_upload_frame_index);
+ if (!img)
+ GR_LOG("ERROR: this image doesn't exist\n");
+ if (!frame)
+ GR_LOG("ERROR: this frame doesn't exist\n");
+ }
+ if (!more) {
+ current_upload_image_id = 0;
+ current_upload_frame_index = 0;
+ }
+ if (!frame) {
+ if (!more)
+ gr_reporterror_frame(NULL, "ENOENT: could not find the "
+ "image to append data to");
+ return;
+ }
+ if (frame->status != STATUS_UPLOADING) {
+ if (!more)
+ gr_reportuploaderror(frame);
+ return;
+ }
+
+ // Decode the data.
+ size_t data_size = 0;
+ char *data = gr_base64dec(payload, &data_size);
+
+ GR_LOG("appending %u + %zu = %zu bytes\n", frame->disk_size, data_size,
+ frame->disk_size + data_size);
+
+ // Do not append this data if the image exceeds the size limit.
+ if (frame->disk_size + data_size >
+ graphics_max_single_image_file_size ||
+ frame->expected_size > graphics_max_single_image_file_size) {
+ free(data);
+ gr_delete_imagefile(frame);
+ frame->uploading_failure = ERROR_OVER_SIZE_LIMIT;
+ if (!more)
+ gr_reportuploaderror(frame);
+ return;
+ }
+
+ // If there is no open file corresponding to the image, create it.
+ if (!frame->open_file) {
+ gr_make_sure_tmpdir_exists();
+ char filename[MAX_FILENAME_SIZE];
+ gr_get_frame_filename(frame, filename, MAX_FILENAME_SIZE);
+ FILE *file = fopen(filename, frame->disk_size ? "a" : "w");
+ if (!file) {
+ frame->status = STATUS_UPLOADING_ERROR;
+ frame->uploading_failure = ERROR_CANNOT_OPEN_CACHED_FILE;
+ if (!more)
+ gr_reportuploaderror(frame);
+ return;
+ }
+ frame->open_file = file;
+ }
+
+ // Write data to the file and update disk size variables.
+ fwrite(data, 1, data_size, frame->open_file);
+ free(data);
+ frame->disk_size += data_size;
+ frame->image->total_disk_size += data_size;
+ images_disk_size += data_size;
+ gr_touch_frame(frame);
+
+ if (more) {
+ current_upload_image_id = frame->image->image_id;
+ current_upload_frame_index = frame->index;
+ } else {
+ current_upload_image_id = 0;
+ current_upload_frame_index = 0;
+ // Close the file.
+ if (frame->open_file) {
+ fclose(frame->open_file);
+ frame->open_file = NULL;
+ }
+ frame->status = STATUS_UPLOADING_SUCCESS;
+ uint32_t placement_id = frame->image->default_placement;
+ if (frame->expected_size &&
+ frame->expected_size != frame->disk_size) {
+ // Report failure if the uploaded image size doesn't
+ // match the expected size.
+ frame->status = STATUS_UPLOADING_ERROR;
+ frame->uploading_failure = ERROR_UNEXPECTED_SIZE;
+ gr_reportuploaderror(frame);
+ } else {
+ // Make sure to redraw all existing image instances.
+ gr_schedule_image_redraw(frame->image);
+ // Try to load the image into ram and report the result.
+ frame = gr_loadimage_and_report(frame);
+ // If there is a non-virtual image placement, we may
+ // need to display it.
+ if (frame && frame->index == 1) {
+ Image *img = frame->image;
+ ImagePlacement *placement = NULL;
+ kh_foreach_value(img->placements, placement, {
+ gr_display_nonvirtual_placement(placement);
+ });
+ }
+ }
+ }
+
+ // Check whether we need to delete old images.
+ gr_check_limits();
+}
+
+/// Finds the image either by id or by number specified in the command and sets
+/// the image_id of `cmd` if the image was found.
+static Image *gr_find_image_for_command(GraphicsCommand *cmd) {
+ if (cmd->image_id)
+ return gr_find_image(cmd->image_id);
+ Image *img = NULL;
+ // If the image number is not specified, we can't find the image, unless
+ // it's a put command, in which case we will try the last image.
+ if (cmd->image_number == 0 && cmd->action == 'p')
+ img = gr_find_image(last_image_id);
+ else
+ img = gr_find_image_by_number(cmd->image_number);
+ if (img)
+ cmd->image_id = img->image_id;
+ return img;
+}
+
+/// Creates a new image or a new frame in an existing image (depending on the
+/// command's action) and initializes its parameters from the command.
+static ImageFrame *gr_new_image_or_frame_from_command(GraphicsCommand *cmd) {
+ if (cmd->format != 0 && cmd->format != 32 && cmd->format != 24 &&
+ cmd->compression != 0) {
+ gr_reporterror_cmd(cmd, "EINVAL: compression is supported only "
+ "for raw pixel data (f=32 or f=24)");
+ // Even though we report an error, we still create an image.
+ }
+
+ Image *img = NULL;
+ if (cmd->action == 'f') {
+ // If it's a frame transmission action, there must be an
+ // existing image.
+ img = gr_find_image_for_command(cmd);
+ if (!img) {
+ gr_reporterror_cmd(cmd, "ENOENT: image not found");
+ return NULL;
+ }
+ } else {
+ // Otherwise create a new image object. If the action is `q`,
+ // we'll use random id instead of the one specified in the
+ // command.
+ uint32_t image_id = cmd->action == 'q' ? 0 : cmd->image_id;
+ img = gr_new_image(image_id);
+ if (!img)
+ return NULL;
+ if (cmd->action == 'q')
+ img->query_id = cmd->image_id;
+ else if (!cmd->image_id)
+ cmd->image_id = img->image_id;
+ // Set the image number.
+ img->image_number = cmd->image_number;
+ }
+
+ ImageFrame *frame = gr_append_new_frame(img);
+ // Initialize the frame.
+ frame->expected_size = cmd->size;
+ frame->format = cmd->format;
+ frame->compression = cmd->compression;
+ frame->background_color = cmd->background_color;
+ frame->background_frame_index = cmd->background_frame;
+ frame->gap = cmd->gap;
+ img->total_duration += frame->gap;
+ frame->blend = !cmd->replace_instead_of_blending;
+ frame->data_pix_width = cmd->frame_pix_width;
+ frame->data_pix_height = cmd->frame_pix_height;
+ if (cmd->action == 'f') {
+ frame->x = cmd->frame_dst_pix_x;
+ frame->y = cmd->frame_dst_pix_y;
+ }
+ // We save the quietness information in the frame because for direct
+ // transmission subsequent transmission command won't contain this info.
+ frame->quiet = cmd->quiet;
+ return frame;
+}
+
+/// Removes a file if it actually looks like a temporary file.
+static void gr_delete_tmp_file(const char *filename) {
+ if (strstr(filename, "tty-graphics-protocol") == NULL)
+ return;
+ if (strstr(filename, "/tmp/") != filename) {
+ const char *tmpdir = getenv("TMPDIR");
+ if (!tmpdir || !tmpdir[0] ||
+ strstr(filename, tmpdir) != filename)
+ return;
+ }
+ unlink(filename);
+}
+
+/// Handles a data transmission command.
+static ImageFrame *gr_handle_transmit_command(GraphicsCommand *cmd) {
+ // The default is direct transmission.
+ if (!cmd->transmission_medium)
+ cmd->transmission_medium = 'd';
+
+ // If neither id, nor image number is specified, and the transmission
+ // medium is 'd' (or unspecified), and there is an active direct upload,
+ // this is a continuation of the upload.
+ if (current_upload_image_id != 0 && cmd->image_id == 0 &&
+ cmd->image_number == 0 && cmd->transmission_medium == 'd') {
+ cmd->image_id = current_upload_image_id;
+ GR_LOG("No images id is specified, continuing uploading %u\n",
+ cmd->image_id);
+ }
+
+ ImageFrame *frame = NULL;
+ if (cmd->transmission_medium == 'f' ||
+ cmd->transmission_medium == 't') {
+ // File transmission.
+ // Create a new image or a new frame of an existing image.
+ frame = gr_new_image_or_frame_from_command(cmd);
+ if (!frame)
+ return NULL;
+ last_image_id = frame->image->image_id;
+ // Decode the filename.
+ char *original_filename = gr_base64dec(cmd->payload, NULL);
+ GR_LOG("Copying image %s\n",
+ sanitized_filename(original_filename));
+ // Stat the file and check that it's a regular file and not too
+ // big.
+ struct stat st;
+ int stat_res = stat(original_filename, &st);
+ const char *stat_error = NULL;
+ if (stat_res)
+ stat_error = strerror(errno);
+ else if (!S_ISREG(st.st_mode))
+ stat_error = "Not a regular file";
+ else if (st.st_size == 0)
+ stat_error = "The size of the file is zero";
+ else if (st.st_size > graphics_max_single_image_file_size)
+ stat_error = "The file is too large";
+ if (stat_error) {
+ gr_reporterror_cmd(cmd,
+ "EBADF: %s", stat_error);
+ fprintf(stderr, "Could not load the file %s\n",
+ sanitized_filename(original_filename));
+ frame->status = STATUS_UPLOADING_ERROR;
+ frame->uploading_failure = ERROR_CANNOT_COPY_FILE;
+ } else {
+ gr_make_sure_tmpdir_exists();
+ // Build the filename for the cached copy of the file.
+ char cache_filename[MAX_FILENAME_SIZE];
+ gr_get_frame_filename(frame, cache_filename,
+ MAX_FILENAME_SIZE);
+ // We will create a symlink to the original file, and
+ // then copy the file to the temporary cache dir. We do
+ // this symlink trick mostly to be able to use cp for
+ // copying, and avoid escaping file name characters when
+ // calling system at the same time.
+ char tmp_filename_symlink[MAX_FILENAME_SIZE + 4] = {0};
+ strcat(tmp_filename_symlink, cache_filename);
+ strcat(tmp_filename_symlink, ".sym");
+ char command[MAX_FILENAME_SIZE + 256];
+ size_t len =
+ snprintf(command, MAX_FILENAME_SIZE + 255,
+ "cp '%s' '%s'", tmp_filename_symlink,
+ cache_filename);
+ if (len > MAX_FILENAME_SIZE + 255 ||
+ symlink(original_filename, tmp_filename_symlink) ||
+ system(command) != 0) {
+ gr_reporterror_cmd(cmd,
+ "EBADF: could not copy the "
+ "image to the cache dir");
+ fprintf(stderr,
+ "Could not copy the image "
+ "%s (symlink %s) to %s",
+ sanitized_filename(original_filename),
+ tmp_filename_symlink, cache_filename);
+ frame->status = STATUS_UPLOADING_ERROR;
+ frame->uploading_failure = ERROR_CANNOT_COPY_FILE;
+ } else {
+ // Get the file size of the copied file.
+ frame->status = STATUS_UPLOADING_SUCCESS;
+ frame->disk_size = st.st_size;
+ frame->image->total_disk_size += st.st_size;
+ images_disk_size += frame->disk_size;
+ if (frame->expected_size &&
+ frame->expected_size != frame->disk_size) {
+ // The file has unexpected size.
+ frame->status = STATUS_UPLOADING_ERROR;
+ frame->uploading_failure =
+ ERROR_UNEXPECTED_SIZE;
+ gr_reportuploaderror(frame);
+ } else {
+ // Everything seems fine, try to load
+ // and redraw existing instances.
+ gr_schedule_image_redraw(frame->image);
+ frame = gr_loadimage_and_report(frame);
+ }
+ }
+ // Delete the symlink.
+ unlink(tmp_filename_symlink);
+ // Delete the original file if it's temporary.
+ if (cmd->transmission_medium == 't')
+ gr_delete_tmp_file(original_filename);
+ }
+ free(original_filename);
+ gr_check_limits();
+ } else if (cmd->transmission_medium == 'd') {
+ // Direct transmission (default if 't' is not specified).
+ frame = gr_get_last_frame(gr_find_image_for_command(cmd));
+ if (frame && frame->status == STATUS_UPLOADING) {
+ // This is a continuation of the previous transmission.
+ cmd->is_direct_transmission_continuation = 1;
+ gr_append_data(frame, cmd->payload, cmd->more);
+ return frame;
+ }
+ // If no action is specified, it's not the first transmission
+ // command. If we couldn't find the image, something went wrong
+ // and we should just drop this command.
+ if (cmd->action == 0)
+ return NULL;
+ // Otherwise create a new image or frame structure.
+ frame = gr_new_image_or_frame_from_command(cmd);
+ if (!frame)
+ return NULL;
+ last_image_id = frame->image->image_id;
+ frame->status = STATUS_UPLOADING;
+ // Start appending data.
+ gr_append_data(frame, cmd->payload, cmd->more);
+ } else {
+ gr_reporterror_cmd(
+ cmd,
+ "EINVAL: transmission medium '%c' is not supported",
+ cmd->transmission_medium);
+ return NULL;
+ }
+
+ return frame;
+}
+
+/// Handles the 'put' command by creating a placement.
+static void gr_handle_put_command(GraphicsCommand *cmd) {
+ if (cmd->image_id == 0 && cmd->image_number == 0) {
+ gr_reporterror_cmd(cmd,
+ "EINVAL: neither image id nor image number "
+ "are specified or both are zero");
+ return;
+ }
+
+ // Find the image with the id or number.
+ Image *img = gr_find_image_for_command(cmd);
+ if (!img) {
+ gr_reporterror_cmd(cmd, "ENOENT: image not found");
+ return;
+ }
+
+ // Create a placement. If a placement with the same id already exists,
+ // it will be deleted. If the id is zero, a random id will be generated.
+ ImagePlacement *placement = gr_new_placement(img, cmd->placement_id);
+ placement->virtual = cmd->virtual;
+ placement->src_pix_x = cmd->src_pix_x;
+ placement->src_pix_y = cmd->src_pix_y;
+ placement->src_pix_width = cmd->src_pix_width;
+ placement->src_pix_height = cmd->src_pix_height;
+ placement->cols = cmd->columns;
+ placement->rows = cmd->rows;
+ placement->do_not_move_cursor = cmd->do_not_move_cursor;
+
+ if (placement->virtual) {
+ placement->scale_mode = SCALE_MODE_CONTAIN;
+ } else if (placement->cols && placement->rows) {
+ // For classic placements the default is to stretch the image if
+ // both cols and rows are specified.
+ placement->scale_mode = SCALE_MODE_FILL;
+ } else if (placement->cols || placement->rows) {
+ // But if only one of them is specified, the default is to
+ // contain.
+ placement->scale_mode = SCALE_MODE_CONTAIN;
+ } else {
+ // If none of them are specified, the default is to use the
+ // original size.
+ placement->scale_mode = SCALE_MODE_NONE;
+ }
+
+ // Display the placement unless it's virtual.
+ gr_display_nonvirtual_placement(placement);
+
+ // Report success.
+ gr_reportsuccess_cmd(cmd);
+}
+
+/// Information about what to delete.
+typedef struct DeletionData {
+ uint32_t image_id;
+ uint32_t placement_id;
+ /// If true, delete the image object if there are no more placements.
+ char delete_image_if_no_ref;
+} DeletionData;
+
+/// The callback called for each cell to perform deletion.
+static int gr_deletion_callback(void *data, uint32_t image_id,
+ uint32_t placement_id, int col,
+ int row, char is_classic) {
+ DeletionData *del_data = data;
+ // Leave unicode placeholders alone.
+ if (!is_classic)
+ return 0;
+ if (del_data->image_id && del_data->image_id != image_id)
+ return 0;
+ if (del_data->placement_id && del_data->placement_id != placement_id)
+ return 0;
+ Image *img = gr_find_image(image_id);
+ // If the image is already deleted, just erase the placeholder.
+ if (!img)
+ return 1;
+ // Delete the placement.
+ if (placement_id)
+ gr_delete_placement(gr_find_placement(img, placement_id));
+ // Delete the image if image deletion is requested (uppercase delete
+ // specifier) and there are no more placements.
+ if (del_data->delete_image_if_no_ref && kh_size(img->placements) == 0)
+ gr_delete_image(img);
+ return 1;
+}
+
+/// Handles the delete command.
+static void gr_handle_delete_command(GraphicsCommand *cmd) {
+ DeletionData del_data = {0};
+ del_data.delete_image_if_no_ref = isupper(cmd->delete_specifier) != 0;
+ char d = tolower(cmd->delete_specifier);
+
+ if (d == 'n') {
+ d = 'i';
+ Image *img = gr_find_image_by_number(cmd->image_number);
+ if (!img)
+ return;
+ del_data.image_id = img->image_id;
+ }
+
+ if (!d || d == 'a') {
+ // Delete all visible placements.
+ gr_for_each_image_cell(gr_deletion_callback, &del_data);
+ } else if (d == 'i') {
+ // Delete the specified image by image id and maybe placement
+ // id.
+ if (!del_data.image_id)
+ del_data.image_id = cmd->image_id;
+ if (!del_data.image_id) {
+ fprintf(stderr,
+ "ERROR: image id is not specified in the "
+ "delete command\n");
+ return;
+ }
+ del_data.placement_id = cmd->placement_id;
+ // NOTE: It's not very clear whether we should delete the image
+ // even if there are no _visible_ placements to delete. We do
+ // this because otherwise there is no way to delete an image
+ // with virtual placements in one command.
+ if (!del_data.placement_id && del_data.delete_image_if_no_ref)
+ gr_delete_image(gr_find_image(cmd->image_id));
+ gr_for_each_image_cell(gr_deletion_callback, &del_data);
+ } else {
+ fprintf(stderr,
+ "WARNING: unsupported value of the d key: '%c'. The "
+ "command is ignored.\n",
+ cmd->delete_specifier);
+ }
+}
+
+static void gr_handle_animation_control_command(GraphicsCommand *cmd) {
+ if (cmd->image_id == 0 && cmd->image_number == 0) {
+ gr_reporterror_cmd(cmd,
+ "EINVAL: neither image id nor image number "
+ "are specified or both are zero");
+ return;
+ }
+
+ // Find the image with the id or number.
+ Image *img = gr_find_image_for_command(cmd);
+ if (!img) {
+ gr_reporterror_cmd(cmd, "ENOENT: image not found");
+ return;
+ }
+
+ // Find the frame to edit, if requested.
+ ImageFrame *frame = NULL;
+ if (cmd->edit_frame)
+ frame = gr_get_frame(img, cmd->edit_frame);
+ if (cmd->edit_frame || cmd->gap) {
+ if (!frame) {
+ gr_reporterror_cmd(cmd, "ENOENT: frame %d not found",
+ cmd->edit_frame);
+ return;
+ }
+ if (cmd->gap) {
+ img->total_duration -= frame->gap;
+ frame->gap = cmd->gap;
+ img->total_duration += frame->gap;
+ }
+ }
+
+ // Set animation-related parameters of the image.
+ if (cmd->current_frame)
+ img->current_frame = cmd->current_frame;
+ if (cmd->animation_state) {
+ if (cmd->animation_state == 1) {
+ img->animation_state = ANIMATION_STATE_STOPPED;
+ } else if (cmd->animation_state == 2) {
+ img->animation_state = ANIMATION_STATE_LOADING;
+ } else if (cmd->animation_state == 3) {
+ img->animation_state = ANIMATION_STATE_LOOPING;
+ } else {
+ gr_reporterror_cmd(
+ cmd, "EINVAL: invalid animation state: %d",
+ cmd->animation_state);
+ }
+ }
+ // TODO: Set the number of loops to cmd->loops
+
+ // Make sure we redraw all instances of the image.
+ gr_schedule_image_redraw(img);
+}
+
+/// Handles a command.
+static void gr_handle_command(GraphicsCommand *cmd) {
+ if (!cmd->image_id && !cmd->image_number) {
+ // If there is no image id or image number, nobody expects a
+ // response, so set quiet to 2.
+ cmd->quiet = 2;
+ }
+ ImageFrame *frame = NULL;
+ switch (cmd->action) {
+ case 0:
+ // If no action is specified, it may be a data transmission
+ // command if 'm=' is specified.
+ if (cmd->is_data_transmission) {
+ gr_handle_transmit_command(cmd);
+ break;
+ }
+ gr_reporterror_cmd(cmd, "EINVAL: no action specified");
+ break;
+ case 't':
+ case 'q':
+ case 'f':
+ // Transmit data. 'q' means query, which is basically the same
+ // as transmit, but the image is discarded, and the id is fake.
+ // 'f' appends a frame to an existing image.
+ gr_handle_transmit_command(cmd);
+ break;
+ case 'p':
+ // Display (put) the image.
+ gr_handle_put_command(cmd);
+ break;
+ case 'T':
+ // Transmit and display.
+ frame = gr_handle_transmit_command(cmd);
+ if (frame && !cmd->is_direct_transmission_continuation) {
+ gr_handle_put_command(cmd);
+ if (cmd->placement_id)
+ frame->image->initial_placement_id =
+ cmd->placement_id;
+ }
+ break;
+ case 'd':
+ gr_handle_delete_command(cmd);
+ break;
+ case 'a':
+ gr_handle_animation_control_command(cmd);
+ break;
+ default:
+ gr_reporterror_cmd(cmd, "EINVAL: unsupported action: %c",
+ cmd->action);
+ return;
+ }
+}
+
+/// A partially parsed key-value pair.
+typedef struct KeyAndValue {
+ char *key_start;
+ char *val_start;
+ unsigned key_len, val_len;
+} KeyAndValue;
+
+/// Parses the value of a key and assigns it to the appropriate field of `cmd`.
+static void gr_set_keyvalue(GraphicsCommand *cmd, KeyAndValue *kv) {
+ char *key_start = kv->key_start;
+ char *key_end = key_start + kv->key_len;
+ char *value_start = kv->val_start;
+ char *value_end = value_start + kv->val_len;
+ // Currently all keys are one-character.
+ if (key_end - key_start != 1) {
+ gr_reporterror_cmd(cmd, "EINVAL: unknown key of length %ld: %s",
+ key_end - key_start, key_start);
+ return;
+ }
+ long num = 0;
+ if (*key_start == 'a' || *key_start == 't' || *key_start == 'd' ||
+ *key_start == 'o') {
+ // Some keys have one-character values.
+ if (value_end - value_start != 1) {
+ gr_reporterror_cmd(
+ cmd,
+ "EINVAL: value of 'a', 't' or 'd' must be a "
+ "single char: %s",
+ key_start);
+ return;
+ }
+ } else {
+ // All the other keys have integer values.
+ char *num_end = NULL;
+ num = strtol(value_start, &num_end, 10);
+ if (num_end != value_end) {
+ gr_reporterror_cmd(
+ cmd, "EINVAL: could not parse number value: %s",
+ key_start);
+ return;
+ }
+ }
+ switch (*key_start) {
+ case 'a':
+ cmd->action = *value_start;
+ break;
+ case 't':
+ cmd->transmission_medium = *value_start;
+ break;
+ case 'd':
+ cmd->delete_specifier = *value_start;
+ break;
+ case 'q':
+ cmd->quiet = num;
+ break;
+ case 'f':
+ cmd->format = num;
+ if (num != 0 && num != 24 && num != 32 && num != 100) {
+ gr_reporterror_cmd(
+ cmd,
+ "EINVAL: unsupported format specification: %s",
+ key_start);
+ }
+ break;
+ case 'o':
+ cmd->compression = *value_start;
+ if (cmd->compression != 'z') {
+ gr_reporterror_cmd(cmd,
+ "EINVAL: unsupported compression "
+ "specification: %s",
+ key_start);
+ }
+ break;
+ case 's':
+ if (cmd->action == 'a')
+ cmd->animation_state = num;
+ else
+ cmd->frame_pix_width = num;
+ break;
+ case 'v':
+ if (cmd->action == 'a')
+ cmd->loops = num;
+ else
+ cmd->frame_pix_height = num;
+ break;
+ case 'i':
+ cmd->image_id = num;
+ break;
+ case 'I':
+ cmd->image_number = num;
+ break;
+ case 'p':
+ cmd->placement_id = num;
+ break;
+ case 'x':
+ cmd->src_pix_x = num;
+ cmd->frame_dst_pix_x = num;
+ break;
+ case 'y':
+ if (cmd->action == 'f')
+ cmd->frame_dst_pix_y = num;
+ else
+ cmd->src_pix_y = num;
+ break;
+ case 'w':
+ cmd->src_pix_width = num;
+ break;
+ case 'h':
+ cmd->src_pix_height = num;
+ break;
+ case 'c':
+ if (cmd->action == 'f')
+ cmd->background_frame = num;
+ else if (cmd->action == 'a')
+ cmd->current_frame = num;
+ else
+ cmd->columns = num;
+ break;
+ case 'r':
+ if (cmd->action == 'f' || cmd->action == 'a')
+ cmd->edit_frame = num;
+ else
+ cmd->rows = num;
+ break;
+ case 'm':
+ cmd->is_data_transmission = 1;
+ cmd->more = num;
+ break;
+ case 'S':
+ cmd->size = num;
+ break;
+ case 'U':
+ cmd->virtual = num;
+ break;
+ case 'X':
+ if (cmd->action == 'f')
+ cmd->replace_instead_of_blending = num;
+ else
+ break; /*ignore*/
+ break;
+ case 'Y':
+ if (cmd->action == 'f')
+ cmd->background_color = num;
+ else
+ break; /*ignore*/
+ break;
+ case 'z':
+ if (cmd->action == 'f' || cmd->action == 'a')
+ cmd->gap = num;
+ else
+ break; /*ignore*/
+ break;
+ case 'C':
+ cmd->do_not_move_cursor = num;
+ break;
+ default:
+ gr_reporterror_cmd(cmd, "EINVAL: unsupported key: %s",
+ key_start);
+ return;
+ }
+}
+
+/// Parse and execute a graphics command. `buf` must start with 'G' and contain
+/// at least `len + 1` characters. Returns 1 on success.
+int gr_parse_command(char *buf, size_t len) {
+ if (buf[0] != 'G')
+ return 0;
+
+ memset(&graphics_command_result, 0, sizeof(GraphicsCommandResult));
+
+ global_command_counter++;
+ GR_LOG("### Command %lu: %.80s\n", global_command_counter, buf);
+
+ // Eat the 'G'.
+ ++buf;
+ --len;
+
+ GraphicsCommand cmd = {.command = buf};
+ // The state of parsing. 'k' to parse key, 'v' to parse value, 'p' to
+ // parse the payload.
+ char state = 'k';
+ // An array of partially parsed key-value pairs.
+ KeyAndValue key_vals[32];
+ unsigned key_vals_count = 0;
+ char *key_start = buf;
+ char *key_end = NULL;
+ char *val_start = NULL;
+ char *val_end = NULL;
+ char *c = buf;
+ while (c - buf < len + 1) {
+ if (state == 'k') {
+ switch (*c) {
+ case ',':
+ case ';':
+ case '\0':
+ state = *c == ',' ? 'k' : 'p';
+ key_end = c;
+ gr_reporterror_cmd(
+ &cmd, "EINVAL: key without value: %s ",
+ key_start);
+ break;
+ case '=':
+ key_end = c;
+ state = 'v';
+ val_start = c + 1;
+ break;
+ default:
+ break;
+ }
+ } else if (state == 'v') {
+ switch (*c) {
+ case ',':
+ case ';':
+ case '\0':
+ state = *c == ',' ? 'k' : 'p';
+ val_end = c;
+ if (key_vals_count >=
+ sizeof(key_vals) / sizeof(*key_vals)) {
+ gr_reporterror_cmd(&cmd,
+ "EINVAL: too many "
+ "key-value pairs");
+ break;
+ }
+ key_vals[key_vals_count].key_start = key_start;
+ key_vals[key_vals_count].val_start = val_start;
+ key_vals[key_vals_count].key_len =
+ key_end - key_start;
+ key_vals[key_vals_count].val_len =
+ val_end - val_start;
+ ++key_vals_count;
+ key_start = c + 1;
+ break;
+ default:
+ break;
+ }
+ } else if (state == 'p') {
+ cmd.payload = c;
+ // break out of the loop, we don't check the payload
+ break;
+ }
+ ++c;
+ }
+
+ // Set the action key ('a=') first because we need it to disambiguate
+ // some keys. Also set 'i=' and 'I=' for better error reporting.
+ for (unsigned i = 0; i < key_vals_count; ++i) {
+ if (key_vals[i].key_len == 1) {
+ char *start = key_vals[i].key_start;
+ if (*start == 'a' || *start == 'i' || *start == 'I') {
+ gr_set_keyvalue(&cmd, &key_vals[i]);
+ break;
+ }
+ }
+ }
+ // Set the rest of the keys.
+ for (unsigned i = 0; i < key_vals_count; ++i)
+ gr_set_keyvalue(&cmd, &key_vals[i]);
+
+ if (!cmd.payload)
+ cmd.payload = buf + len;
+
+ if (cmd.payload && cmd.payload[0])
+ GR_LOG(" payload size: %ld\n", strlen(cmd.payload));
+
+ if (!graphics_command_result.error)
+ gr_handle_command(&cmd);
+
+ if (graphics_debug_mode) {
+ fprintf(stderr, "Response: ");
+ for (const char *resp = graphics_command_result.response;
+ *resp != '\0'; ++resp) {
+ if (isprint(*resp))
+ fprintf(stderr, "%c", *resp);
+ else
+ fprintf(stderr, "(0x%x)", *resp);
+ }
+ fprintf(stderr, "\n");
+ }
+
+ // Make sure that we suppress response if needed. Usually cmd.quiet is
+ // taken into account when creating the response, but it's not very
+ // reliable in the current implementation.
+ if (cmd.quiet) {
+ if (!graphics_command_result.error || cmd.quiet >= 2)
+ graphics_command_result.response[0] = '\0';
+ }
+
+ return 1;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// base64 decoding part is basically copied from st.c
+////////////////////////////////////////////////////////////////////////////////
+
+static const char gr_base64_digits[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 0, 0, 0, 63, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, -1, 0, 0, 0, 0, 1, 2,
+ 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+ 20, 21, 22, 23, 24, 25, 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+static char gr_base64_getc(const char **src) {
+ while (**src && !isprint(**src))
+ (*src)++;
+ return **src ? *((*src)++) : '='; /* emulate padding if string ends */
+}
+
+char *gr_base64dec(const char *src, size_t *size) {
+ size_t in_len = strlen(src);
+ char *result, *dst;
+
+ result = dst = malloc((in_len + 3) / 4 * 3 + 1);
+ while (*src) {
+ int a = gr_base64_digits[(unsigned char)gr_base64_getc(&src)];
+ int b = gr_base64_digits[(unsigned char)gr_base64_getc(&src)];
+ int c = gr_base64_digits[(unsigned char)gr_base64_getc(&src)];
+ int d = gr_base64_digits[(unsigned char)gr_base64_getc(&src)];
+
+ if (a == -1 || b == -1)
+ break;
+
+ *dst++ = (a << 2) | ((b & 0x30) >> 4);
+ if (c == -1)
+ break;
+ *dst++ = ((b & 0x0f) << 4) | ((c & 0x3c) >> 2);
+ if (d == -1)
+ break;
+ *dst++ = ((c & 0x03) << 6) | d;
+ }
+ *dst = '\0';
+ if (size) {
+ *size = dst - result;
+ }
+ return result;
+}
diff --git a/st/graphics.h b/st/graphics.h
new file mode 100755
index 0000000..2e75dea
--- /dev/null
+++ b/st/graphics.h
@@ -0,0 +1,107 @@
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <X11/Xlib.h>
+
+/// Initialize the graphics module.
+void gr_init(Display *disp, Visual *vis, Colormap cm);
+/// Deinitialize the graphics module.
+void gr_deinit();
+
+/// Add an image rectangle to a list if rectangles to draw. This function may
+/// actually draw some rectangles, or it may wait till more rectangles are
+/// appended. Must be called between `gr_start_drawing` and `gr_finish_drawing`.
+/// - `img_start_col..img_end_col` and `img_start_row..img_end_row` define the
+/// part of the image to draw (row/col indices are zero-based, ends are
+/// excluded).
+/// - `x_col` and `y_row` are the coordinates of the top-left corner of the
+/// image in the terminal grid.
+/// - `x_pix` and `y_pix` are the same but in pixels.
+/// - `reverse` indicates whether colors should be inverted.
+void gr_append_imagerect(Drawable buf, uint32_t image_id, uint32_t placement_id,
+ int img_start_col, int img_end_col, int img_start_row,
+ int img_end_row, int x_col, int y_row, int x_pix,
+ int y_pix, int cw, int ch, int reverse);
+/// Prepare for image drawing. `cw` and `ch` are dimensions of the cell.
+void gr_start_drawing(Drawable buf, int cw, int ch);
+/// Finish image drawing. This functions will draw all the rectangles left to
+/// draw.
+void gr_finish_drawing(Drawable buf);
+/// Mark rows containing animations as dirty if it's time to redraw them. Must
+/// be called right after `gr_start_drawing`.
+void gr_mark_dirty_animations(int *dirty, int rows);
+
+/// Parse and execute a graphics command. `buf` must start with 'G' and contain
+/// at least `len + 1` characters (including '\0'). Returns 1 on success.
+/// Additional informations is returned through `graphics_command_result`.
+int gr_parse_command(char *buf, size_t len);
+
+/// Executes `command` with the name of the file corresponding to `image_id` as
+/// the argument. Executes xmessage with an error message on failure.
+void gr_preview_image(uint32_t image_id, const char *command);
+
+/// Executes `<st> -e less <file>` where <file> is the name of a temporary file
+/// containing the information about an image and placement, and <st> is
+/// specified with `st_executable`.
+void gr_show_image_info(uint32_t image_id, uint32_t placement_id,
+ uint32_t imgcol, uint32_t imgrow,
+ char is_classic_placeholder, int32_t diacritic_count,
+ char *st_executable);
+
+/// Dumps the internal state (images and placements) to stderr.
+void gr_dump_state();
+
+/// Unloads images to reduce RAM usage.
+void gr_unload_images_to_reduce_ram();
+
+/// Executes `callback` for each image cell. `callback` may return 1 to erase
+/// the cell or 0 to keep it. This function is implemented in `st.c`.
+void gr_for_each_image_cell(int (*callback)(void *data, uint32_t image_id,
+ uint32_t placement_id, int col,
+ int row, char is_classic),
+ void *data);
+
+/// Marks all the rows containing the image with `image_id` as dirty.
+void gr_schedule_image_redraw_by_id(uint32_t image_id);
+
+typedef enum {
+ GRAPHICS_DEBUG_NONE = 0,
+ GRAPHICS_DEBUG_LOG = 1,
+ GRAPHICS_DEBUG_LOG_AND_BOXES = 2,
+} GraphicsDebugMode;
+
+/// Print additional information, draw bounding bounding boxes, etc.
+extern GraphicsDebugMode graphics_debug_mode;
+
+/// Whether to display images or just draw bounding boxes.
+extern char graphics_display_images;
+
+/// The time in milliseconds until the next redraw to update animations.
+/// INT_MAX means no redraw is needed. Populated by `gr_finish_drawing`.
+extern int graphics_next_redraw_delay;
+
+#define MAX_GRAPHICS_RESPONSE_LEN 256
+
+/// A structure representing the result of a graphics command.
+typedef struct {
+ /// Indicates if the terminal needs to be redrawn.
+ char redraw;
+ /// The response of the command that should be sent back to the client
+ /// (may be empty if the quiet flag is set).
+ char response[MAX_GRAPHICS_RESPONSE_LEN];
+ /// Whether there was an error executing this command (not very useful,
+ /// the response must be sent back anyway).
+ char error;
+ /// Whether the terminal has to create a placeholder for a non-virtual
+ /// placement.
+ char create_placeholder;
+ /// The placeholder that needs to be created.
+ struct {
+ uint32_t rows, columns;
+ uint32_t image_id, placement_id;
+ char do_not_move_cursor;
+ } placeholder;
+} GraphicsCommandResult;
+
+/// The result of a graphics command.
+extern GraphicsCommandResult graphics_command_result;
diff --git a/st/hb.c b/st/hb.c
new file mode 100755
index 0000000..2bb334c
--- /dev/null
+++ b/st/hb.c
@@ -0,0 +1,125 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <X11/Xft/Xft.h>
+#include <X11/cursorfont.h>
+#include <hb.h>
+#include <hb-ft.h>
+
+#include "st.h"
+#include "hb.h"
+
+#define FEATURE(c1,c2,c3,c4) { .tag = HB_TAG(c1,c2,c3,c4), .value = 1, .start = HB_FEATURE_GLOBAL_START, .end = HB_FEATURE_GLOBAL_END }
+#define BUFFER_STEP 256
+
+hb_font_t *hbfindfont(XftFont *match);
+
+typedef struct {
+ XftFont *match;
+ hb_font_t *font;
+} HbFontMatch;
+
+typedef struct {
+ size_t capacity;
+ HbFontMatch *fonts;
+} HbFontCache;
+
+static HbFontCache hbfontcache = { 0, NULL };
+
+typedef struct {
+ size_t capacity;
+ Rune *runes;
+} RuneBuffer;
+
+static RuneBuffer hbrunebuffer = { 0, NULL };
+
+/*
+ * Poplulate the array with a list of font features, wrapped in FEATURE macro,
+ * e. g.
+ * FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g')
+ */
+hb_feature_t features[] = {0};
+
+void
+hbunloadfonts()
+{
+ for (int i = 0; i < hbfontcache.capacity; i++) {
+ hb_font_destroy(hbfontcache.fonts[i].font);
+ XftUnlockFace(hbfontcache.fonts[i].match);
+ }
+
+ if (hbfontcache.fonts != NULL) {
+ free(hbfontcache.fonts);
+ hbfontcache.fonts = NULL;
+ }
+ hbfontcache.capacity = 0;
+}
+
+hb_font_t *
+hbfindfont(XftFont *match)
+{
+ for (int i = 0; i < hbfontcache.capacity; i++) {
+ if (hbfontcache.fonts[i].match == match)
+ return hbfontcache.fonts[i].font;
+ }
+
+ /* Font not found in cache, caching it now. */
+ hbfontcache.fonts = realloc(hbfontcache.fonts, sizeof(HbFontMatch) * (hbfontcache.capacity + 1));
+ FT_Face face = XftLockFace(match);
+ hb_font_t *font = hb_ft_font_create(face, NULL);
+ if (font == NULL)
+ die("Failed to load Harfbuzz font.");
+
+ hbfontcache.fonts[hbfontcache.capacity].match = match;
+ hbfontcache.fonts[hbfontcache.capacity].font = font;
+ hbfontcache.capacity += 1;
+
+ return font;
+}
+
+void hbtransform(HbTransformData *data, XftFont *xfont, const Glyph *glyphs, int start, int length) {
+ ushort mode = USHRT_MAX;
+ unsigned int glyph_count;
+ int rune_idx, glyph_idx, end = start + length;
+
+ hb_font_t *font = hbfindfont(xfont);
+ if (font == NULL)
+ return;
+
+ hb_buffer_t *buffer = hb_buffer_create();
+ hb_buffer_set_direction(buffer, HB_DIRECTION_LTR);
+ hb_buffer_set_cluster_level(buffer, HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS);
+
+ /* Resize the buffer if required length is larger. */
+ if (hbrunebuffer.capacity < length) {
+ hbrunebuffer.capacity = (length / BUFFER_STEP + 1) * BUFFER_STEP;
+ hbrunebuffer.runes = realloc(hbrunebuffer.runes, hbrunebuffer.capacity * sizeof(Rune));
+ }
+
+ /* Fill buffer with codepoints. */
+ for (rune_idx = 0, glyph_idx = start; glyph_idx < end; glyph_idx++, rune_idx++) {
+ hbrunebuffer.runes[rune_idx] = glyphs[glyph_idx].u;
+ mode = glyphs[glyph_idx].mode;
+ if (mode & ATTR_WDUMMY)
+ hbrunebuffer.runes[rune_idx] = 0x0020;
+ }
+ hb_buffer_add_codepoints(buffer, hbrunebuffer.runes, length, 0, length);
+
+ /* Shape the segment. */
+ hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t));
+
+ /* Get new glyph info. */
+ hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, &glyph_count);
+ hb_glyph_position_t *pos = hb_buffer_get_glyph_positions(buffer, &glyph_count);
+
+ /* Fill the output. */
+ data->buffer = buffer;
+ data->glyphs = info;
+ data->positions = pos;
+ data->count = glyph_count;
+}
+
+void hbcleanup(HbTransformData *data) {
+ hb_buffer_destroy(data->buffer);
+ memset(data, 0, sizeof(HbTransformData));
+}
diff --git a/st/hb.h b/st/hb.h
new file mode 100755
index 0000000..3b0ef44
--- /dev/null
+++ b/st/hb.h
@@ -0,0 +1,14 @@
+#include <X11/Xft/Xft.h>
+#include <hb.h>
+#include <hb-ft.h>
+
+typedef struct {
+ hb_buffer_t *buffer;
+ hb_glyph_info_t *glyphs;
+ hb_glyph_position_t *positions;
+ unsigned int count;
+} HbTransformData;
+
+void hbunloadfonts();
+void hbtransform(HbTransformData *, XftFont *, const Glyph *, int, int);
+void hbcleanup(HbTransformData *);
diff --git a/st/icat-mini.sh b/st/icat-mini.sh
new file mode 100755
index 0000000..cd822f3
--- /dev/null
+++ b/st/icat-mini.sh
@@ -0,0 +1,800 @@
+#!/bin/sh
+
+# vim: shiftwidth=4
+
+script_name="$(basename "$0")"
+
+short_help="Usage: $script_name [OPTIONS] <image_file>
+
+This is a script to display images in the terminal using the kitty graphics
+protocol with Unicode placeholders. It is very basic, please use something else
+if you have alternatives.
+
+Options:
+ -h Show this help.
+ -s SCALE The scale of the image, may be floating point.
+ -c N, --cols N The number of columns.
+ -r N, --rows N The number of rows.
+ --max-cols N The maximum number of columns.
+ --max-rows N The maximum number of rows.
+ --cell-size WxH The cell size in pixels.
+ -m METHOD The uploading method, may be 'file', 'direct' or 'auto'.
+ --speed SPEED The multiplier for the animation speed (float).
+"
+
+# Exit the script on keyboard interrupt
+trap "echo 'icat-mini was interrupted' >&2; exit 1" INT
+
+cols=""
+rows=""
+file=""
+tty="/dev/tty"
+uploading_method="auto"
+cell_size=""
+scale=1
+max_cols=""
+max_rows=""
+speed=""
+
+# Parse the command line.
+while [ $# -gt 0 ]; do
+ case "$1" in
+ -c|--columns|--cols)
+ cols="$2"
+ shift 2
+ ;;
+ -r|--rows|-l|--lines)
+ rows="$2"
+ shift 2
+ ;;
+ -s|--scale)
+ scale="$2"
+ shift 2
+ ;;
+ -h|--help)
+ echo "$short_help"
+ exit 0
+ ;;
+ -m|--upload-method|--uploading-method)
+ uploading_method="$2"
+ shift 2
+ ;;
+ --cell-size)
+ cell_size="$2"
+ shift 2
+ ;;
+ --max-cols)
+ max_cols="$2"
+ shift 2
+ ;;
+ --max-rows)
+ max_rows="$2"
+ shift 2
+ ;;
+ --speed)
+ speed="$2"
+ shift 2
+ ;;
+ --)
+ file="$2"
+ shift 2
+ ;;
+ -*)
+ echo "Unknown option: $1" >&2
+ exit 1
+ ;;
+ *)
+ if [ -n "$file" ]; then
+ echo "Multiple image files are not supported: $file and $1" >&2
+ exit 1
+ fi
+ file="$1"
+ shift
+ ;;
+ esac
+done
+
+file="$(realpath "$file")"
+
+#####################################################################
+# Adjust the terminal state
+#####################################################################
+
+stty_orig="$(stty -g < "$tty")"
+stty -echo < "$tty"
+# Disable ctrl-z. Pressing ctrl-z during image uploading may cause some
+# horrible issues otherwise.
+stty susp undef < "$tty"
+stty -icanon < "$tty"
+
+restore_echo() {
+ [ -n "$stty_orig" ] || return
+ stty $stty_orig < "$tty"
+}
+
+trap restore_echo EXIT TERM
+
+#####################################################################
+# Detect imagemagick
+#####################################################################
+
+# If there is the 'magick' command, use it instead of separate 'convert' and
+# 'identify' commands.
+if command -v magick > /dev/null; then
+ identify="magick identify"
+ convert="magick"
+else
+ identify="identify"
+ convert="convert"
+fi
+
+#####################################################################
+# Detect tmux
+#####################################################################
+
+# Check if we are inside tmux.
+inside_tmux=""
+if [ -n "$TMUX" ]; then
+ case "$TERM" in
+ *tmux*|*screen*)
+ inside_tmux=1
+ ;;
+ esac
+fi
+
+#####################################################################
+# Compute the number of rows and columns
+#####################################################################
+
+is_pos_int() {
+ if [ -z "$1" ]; then
+ return 1 # false
+ fi
+ if [ -z "$(printf '%s' "$1" | tr -d '[:digit:]')" ]; then
+ if [ "$1" -gt 0 ]; then
+ return 0 # true
+ fi
+ fi
+ return 1 # false
+}
+
+if [ -n "$cols" ] || [ -n "$rows" ]; then
+ if [ -n "$max_cols" ] || [ -n "$max_rows" ]; then
+ echo "You can't specify both max-cols/rows and cols/rows" >&2
+ exit 1
+ fi
+fi
+# Get the max number of cols and rows.
+[ -n "$max_cols" ] || max_cols="$(tput cols)"
+[ -n "$max_rows" ] || max_rows="$(tput lines)"
+if [ "$max_rows" -gt 255 ]; then
+ max_rows=255
+fi
+
+python_ioctl_command="import array, fcntl, termios
+buf = array.array('H', [0, 0, 0, 0])
+fcntl.ioctl(0, termios.TIOCGWINSZ, buf)
+print(int(buf[2]/buf[1]), int(buf[3]/buf[0]))"
+
+# Get the cell size in pixels if either cols or rows are not specified.
+if [ -z "$cols" ] || [ -z "$rows" ]; then
+ cell_width=""
+ cell_height=""
+ # If the cell size is specified, use it.
+ if [ -n "$cell_size" ]; then
+ cell_width="${cell_size%x*}"
+ cell_height="${cell_size#*x}"
+ if ! is_pos_int "$cell_height" || ! is_pos_int "$cell_width"; then
+ echo "Invalid cell size: $cell_size" >&2
+ exit 1
+ fi
+ fi
+ # Otherwise try to use TIOCGWINSZ ioctl via python.
+ if [ -z "$cell_width" ] || [ -z "$cell_height" ]; then
+ cell_size_ioctl="$(python3 -c "$python_ioctl_command" < "$tty" 2> /dev/null)"
+ cell_width="${cell_size_ioctl% *}"
+ cell_height="${cell_size_ioctl#* }"
+ if ! is_pos_int "$cell_height" || ! is_pos_int "$cell_width"; then
+ cell_width=""
+ cell_height=""
+ fi
+ fi
+ # If it didn't work, try to use csi XTWINOPS.
+ if [ -z "$cell_width" ] || [ -z "$cell_height" ]; then
+ if [ -n "$inside_tmux" ]; then
+ printf '\ePtmux;\e\e[16t\e\\' >> "$tty"
+ else
+ printf '\e[16t' >> "$tty"
+ fi
+ # The expected response will look like ^[[6;<height>;<width>t
+ term_response=""
+ while true; do
+ char=$(dd bs=1 count=1 <"$tty" 2>/dev/null)
+ if [ "$char" = "t" ]; then
+ break
+ fi
+ term_response="$term_response$char"
+ done
+ cell_height="$(printf '%s' "$term_response" | cut -d ';' -f 2)"
+ cell_width="$(printf '%s' "$term_response" | cut -d ';' -f 3)"
+ if ! is_pos_int "$cell_height" || ! is_pos_int "$cell_width"; then
+ cell_width=8
+ cell_height=16
+ fi
+ fi
+fi
+
+# Compute a formula with bc and round to the nearest integer.
+bc_round() {
+ LC_NUMERIC=C printf '%.0f' "$(printf '%s\n' "scale=2;($1) + 0.5" | bc)"
+}
+
+# Compute the number of rows and columns of the image.
+if [ -z "$cols" ] || [ -z "$rows" ]; then
+ # Get the size of the image and its resolution. If it's an animation, use
+ # the first frame.
+ format_output="$($identify -format '%w %h\n' "$file" | head -1)"
+ img_width="$(printf '%s' "$format_output" | cut -d ' ' -f 1)"
+ img_height="$(printf '%s' "$format_output" | cut -d ' ' -f 2)"
+ if ! is_pos_int "$img_width" || ! is_pos_int "$img_height"; then
+ echo "Couldn't get image size from identify: $format_output" >&2
+ echo >&2
+ exit 1
+ fi
+ opt_cols_expr="(${scale}*${img_width}/${cell_width})"
+ opt_rows_expr="(${scale}*${img_height}/${cell_height})"
+ if [ -z "$cols" ] && [ -z "$rows" ]; then
+ # If columns and rows are not specified, compute the optimal values
+ # using the information about rows and columns per inch.
+ cols="$(bc_round "$opt_cols_expr")"
+ rows="$(bc_round "$opt_rows_expr")"
+ # Make sure that automatically computed rows and columns are within some
+ # sane limits
+ if [ "$cols" -gt "$max_cols" ]; then
+ rows="$(bc_round "$rows * $max_cols / $cols")"
+ cols="$max_cols"
+ fi
+ if [ "$rows" -gt "$max_rows" ]; then
+ cols="$(bc_round "$cols * $max_rows / $rows")"
+ rows="$max_rows"
+ fi
+ elif [ -z "$cols" ]; then
+ # If only one dimension is specified, compute the other one to match the
+ # aspect ratio as close as possible.
+ cols="$(bc_round "${opt_cols_expr}*${rows}/${opt_rows_expr}")"
+ elif [ -z "$rows" ]; then
+ rows="$(bc_round "${opt_rows_expr}*${cols}/${opt_cols_expr}")"
+ fi
+
+ if [ "$cols" -lt 1 ]; then
+ cols=1
+ fi
+ if [ "$rows" -lt 1 ]; then
+ rows=1
+ fi
+fi
+
+#####################################################################
+# Generate an image id
+#####################################################################
+
+image_id=""
+while [ -z "$image_id" ]; do
+ image_id="$(shuf -i 16777217-4294967295 -n 1)"
+ # Check that the id requires 24-bit fg colors.
+ if [ "$(expr \( "$image_id" / 256 \) % 65536)" -eq 0 ]; then
+ image_id=""
+ fi
+done
+
+#####################################################################
+# Uploading the image
+#####################################################################
+
+# Choose the uploading method
+if [ "$uploading_method" = "auto" ]; then
+ if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] || [ -n "$SSH_CONNECTION" ]; then
+ uploading_method="direct"
+ else
+ uploading_method="file"
+ fi
+fi
+
+# Functions to emit the start and the end of a graphics command.
+if [ -n "$inside_tmux" ]; then
+ # If we are in tmux we have to wrap the command in Ptmux.
+ graphics_command_start='\ePtmux;\e\e_G'
+ graphics_command_end='\e\e\\\e\\'
+else
+ graphics_command_start='\e_G'
+ graphics_command_end='\e\\'
+fi
+
+start_gr_command() {
+ printf "$graphics_command_start" >> "$tty"
+}
+end_gr_command() {
+ printf "$graphics_command_end" >> "$tty"
+}
+
+# Send a graphics command with the correct start and end
+gr_command() {
+ start_gr_command
+ printf '%s' "$1" >> "$tty"
+ end_gr_command
+}
+
+# Send an uploading command. Usage: gr_upload <action> <command> <file>
+# Where <action> is a part of command that specifies the action, it will be
+# repeated for every chunk (if the method is direct), and <command> is the rest
+# of the command that specifies the image parameters. <action> and <command>
+# must not include the transmission method or ';'.
+# Example:
+# gr_upload "a=T,q=2" "U=1,i=${image_id},f=100,c=${cols},r=${rows}" "$file"
+gr_upload() {
+ arg_action="$1"
+ arg_command="$2"
+ arg_file="$3"
+ if [ "$uploading_method" = "file" ]; then
+ # base64-encode the filename
+ encoded_filename=$(printf '%s' "$arg_file" | base64 -w0)
+ gr_command "${arg_action},${arg_command},t=f;${encoded_filename}"
+ fi
+ if [ "$uploading_method" = "direct" ]; then
+ # Create a temporary directory to store the chunked image.
+ chunkdir="$(mktemp -d)"
+ if [ ! "$chunkdir" ] || [ ! -d "$chunkdir" ]; then
+ echo "Can't create a temp dir" >&2
+ exit 1
+ fi
+ # base64-encode the file and split it into chunks. The size of each
+ # graphics command shouldn't be more than 4096, so we set the size of an
+ # encoded chunk to be 3968, slightly less than that.
+ chunk_size=3968
+ cat "$arg_file" | base64 -w0 | split -b "$chunk_size" - "$chunkdir/chunk_"
+
+ # Issue a command indicating that we want to start data transmission for
+ # a new image.
+ gr_command "${arg_action},${arg_command},t=d,m=1"
+
+ # Transmit chunks.
+ for chunk in "$chunkdir/chunk_"*; do
+ start_gr_command
+ printf '%s' "${arg_action},i=${image_id},m=1;" >> "$tty"
+ cat "$chunk" >> "$tty"
+ end_gr_command
+ rm "$chunk"
+ done
+
+ # Tell the terminal that we are done.
+ gr_command "${arg_action},i=$image_id,m=0"
+
+ # Remove the temporary directory.
+ rmdir "$chunkdir"
+ fi
+}
+
+delayed_frame_dir_cleanup() {
+ arg_frame_dir="$1"
+ sleep 2
+ if [ -n "$arg_frame_dir" ]; then
+ for frame in "$arg_frame_dir"/frame_*.png; do
+ rm "$frame"
+ done
+ rmdir "$arg_frame_dir"
+ fi
+}
+
+upload_image_and_print_placeholder() {
+ # Check if the file is an animation.
+ frame_count=$($identify -format '%n\n' "$file" | head -n 1)
+ if [ "$frame_count" -gt 1 ]; then
+ # The file is an animation, decompose into frames and upload each frame.
+ frame_dir="$(mktemp -d)"
+ frame_dir="$HOME/temp/frames${frame_dir}"
+ mkdir -p "$frame_dir"
+ if [ ! "$frame_dir" ] || [ ! -d "$frame_dir" ]; then
+ echo "Can't create a temp dir for frames" >&2
+ exit 1
+ fi
+
+ # Decompose the animation into separate frames.
+ $convert "$file" -coalesce "$frame_dir/frame_%06d.png"
+
+ # Get all frame delays at once, in centiseconds, as a space-separated
+ # string.
+ delays=$($identify -format "%T " "$file")
+
+ frame_number=1
+ for frame in "$frame_dir"/frame_*.png; do
+ # Read the delay for the current frame and convert it from
+ # centiseconds to milliseconds.
+ delay=$(printf '%s' "$delays" | cut -d ' ' -f "$frame_number")
+ delay=$((delay * 10))
+ # If the delay is 0, set it to 100ms.
+ if [ "$delay" -eq 0 ]; then
+ delay=100
+ fi
+
+ if [ -n "$speed" ]; then
+ delay=$(bc_round "$delay / $speed")
+ fi
+
+ if [ "$frame_number" -eq 1 ]; then
+ # Upload the first frame with a=T
+ gr_upload "q=2,a=T" "f=100,U=1,i=${image_id},c=${cols},r=${rows}" "$frame"
+ # Set the delay for the first frame and also play the animation
+ # in loading mode (s=2).
+ gr_command "a=a,v=1,s=2,r=${frame_number},z=${delay},i=${image_id}"
+ # Print the placeholder after the first frame to reduce the wait
+ # time.
+ print_placeholder
+ else
+ # Upload subsequent frames with a=f
+ gr_upload "q=2,a=f" "f=100,i=${image_id},z=${delay}" "$frame"
+ fi
+
+ frame_number=$((frame_number + 1))
+ done
+
+ # Play the animation in loop mode (s=3).
+ gr_command "a=a,v=1,s=3,i=${image_id}"
+
+ # Remove the temporary directory, but do it in the background with a
+ # delay to avoid removing files before they are loaded by the terminal.
+ delayed_frame_dir_cleanup "$frame_dir" 2> /dev/null &
+ else
+ # The file is not an animation, upload it directly
+ gr_upload "q=2,a=T" "U=1,i=${image_id},f=100,c=${cols},r=${rows}" "$file"
+ # Print the placeholder
+ print_placeholder
+ fi
+}
+
+#####################################################################
+# Printing the image placeholder
+#####################################################################
+
+print_placeholder() {
+ # Each line starts with the escape sequence to set the foreground color to
+ # the image id.
+ blue="$(expr "$image_id" % 256 )"
+ green="$(expr \( "$image_id" / 256 \) % 256 )"
+ red="$(expr \( "$image_id" / 65536 \) % 256 )"
+ line_start="$(printf "\e[38;2;%d;%d;%dm" "$red" "$green" "$blue")"
+ line_end="$(printf "\e[39;m")"
+
+ id4th="$(expr \( "$image_id" / 16777216 \) % 256 )"
+ eval "id_diacritic=\$d${id4th}"
+
+ # Reset the brush state, mostly to reset the underline color.
+ printf "\e[0m"
+
+ # Fill the output with characters representing the image
+ for y in $(seq 0 "$(expr "$rows" - 1)"); do
+ eval "row_diacritic=\$d${y}"
+ printf '%s' "$line_start"
+ for x in $(seq 0 "$(expr "$cols" - 1)"); do
+ eval "col_diacritic=\$d${x}"
+ # Note that when $x is out of bounds, the column diacritic will
+ # be empty, meaning that the column should be guessed by the
+ # terminal.
+ if [ "$x" -ge "$num_diacritics" ]; then
+ printf '%s' "${placeholder}${row_diacritic}"
+ else
+ printf '%s' "${placeholder}${row_diacritic}${col_diacritic}${id_diacritic}"
+ fi
+ done
+ printf '%s\n' "$line_end"
+ done
+
+ printf "\e[0m"
+}
+
+d0="̅"
+d1="̍"
+d2="̎"
+d3="̐"
+d4="̒"
+d5="̽"
+d6="̾"
+d7="̿"
+d8="͆"
+d9="͊"
+d10="͋"
+d11="͌"
+d12="͐"
+d13="͑"
+d14="͒"
+d15="͗"
+d16="͛"
+d17="ͣ"
+d18="ͤ"
+d19="ͥ"
+d20="ͦ"
+d21="ͧ"
+d22="ͨ"
+d23="ͩ"
+d24="ͪ"
+d25="ͫ"
+d26="ͬ"
+d27="ͭ"
+d28="ͮ"
+d29="ͯ"
+d30="҃"
+d31="҄"
+d32="҅"
+d33="҆"
+d34="҇"
+d35="֒"
+d36="֓"
+d37="֔"
+d38="֕"
+d39="֗"
+d40="֘"
+d41="֙"
+d42="֜"
+d43="֝"
+d44="֞"
+d45="֟"
+d46="֠"
+d47="֡"
+d48="֨"
+d49="֩"
+d50="֫"
+d51="֬"
+d52="֯"
+d53="ׄ"
+d54="ؐ"
+d55="ؑ"
+d56="ؒ"
+d57="ؓ"
+d58="ؔ"
+d59="ؕ"
+d60="ؖ"
+d61="ؗ"
+d62="ٗ"
+d63="٘"
+d64="ٙ"
+d65="ٚ"
+d66="ٛ"
+d67="ٝ"
+d68="ٞ"
+d69="ۖ"
+d70="ۗ"
+d71="ۘ"
+d72="ۙ"
+d73="ۚ"
+d74="ۛ"
+d75="ۜ"
+d76="۟"
+d77="۠"
+d78="ۡ"
+d79="ۢ"
+d80="ۤ"
+d81="ۧ"
+d82="ۨ"
+d83="۫"
+d84="۬"
+d85="ܰ"
+d86="ܲ"
+d87="ܳ"
+d88="ܵ"
+d89="ܶ"
+d90="ܺ"
+d91="ܽ"
+d92="ܿ"
+d93="݀"
+d94="݁"
+d95="݃"
+d96="݅"
+d97="݇"
+d98="݉"
+d99="݊"
+d100="߫"
+d101="߬"
+d102="߭"
+d103="߮"
+d104="߯"
+d105="߰"
+d106="߱"
+d107="߳"
+d108="ࠖ"
+d109="ࠗ"
+d110="࠘"
+d111="࠙"
+d112="ࠛ"
+d113="ࠜ"
+d114="ࠝ"
+d115="ࠞ"
+d116="ࠟ"
+d117="ࠠ"
+d118="ࠡ"
+d119="ࠢ"
+d120="ࠣ"
+d121="ࠥ"
+d122="ࠦ"
+d123="ࠧ"
+d124="ࠩ"
+d125="ࠪ"
+d126="ࠫ"
+d127="ࠬ"
+d128="࠭"
+d129="॑"
+d130="॓"
+d131="॔"
+d132="ྂ"
+d133="ྃ"
+d134="྆"
+d135="྇"
+d136="፝"
+d137="፞"
+d138="፟"
+d139="៝"
+d140="᤺"
+d141="ᨗ"
+d142="᩵"
+d143="᩶"
+d144="᩷"
+d145="᩸"
+d146="᩹"
+d147="᩺"
+d148="᩻"
+d149="᩼"
+d150="᭫"
+d151="᭭"
+d152="᭮"
+d153="᭯"
+d154="᭰"
+d155="᭱"
+d156="᭲"
+d157="᭳"
+d158="᳐"
+d159="᳑"
+d160="᳒"
+d161="᳚"
+d162="᳛"
+d163="᳠"
+d164="᷀"
+d165="᷁"
+d166="᷃"
+d167="᷄"
+d168="᷅"
+d169="᷆"
+d170="᷇"
+d171="᷈"
+d172="᷉"
+d173="᷋"
+d174="᷌"
+d175="᷑"
+d176="᷒"
+d177="ᷓ"
+d178="ᷔ"
+d179="ᷕ"
+d180="ᷖ"
+d181="ᷗ"
+d182="ᷘ"
+d183="ᷙ"
+d184="ᷚ"
+d185="ᷛ"
+d186="ᷜ"
+d187="ᷝ"
+d188="ᷞ"
+d189="ᷟ"
+d190="ᷠ"
+d191="ᷡ"
+d192="ᷢ"
+d193="ᷣ"
+d194="ᷤ"
+d195="ᷥ"
+d196="ᷦ"
+d197="᷾"
+d198="⃐"
+d199="⃑"
+d200="⃔"
+d201="⃕"
+d202="⃖"
+d203="⃗"
+d204="⃛"
+d205="⃜"
+d206="⃡"
+d207="⃧"
+d208="⃩"
+d209="⃰"
+d210="⳯"
+d211="⳰"
+d212="⳱"
+d213="ⷠ"
+d214="ⷡ"
+d215="ⷢ"
+d216="ⷣ"
+d217="ⷤ"
+d218="ⷥ"
+d219="ⷦ"
+d220="ⷧ"
+d221="ⷨ"
+d222="ⷩ"
+d223="ⷪ"
+d224="ⷫ"
+d225="ⷬ"
+d226="ⷭ"
+d227="ⷮ"
+d228="ⷯ"
+d229="ⷰ"
+d230="ⷱ"
+d231="ⷲ"
+d232="ⷳ"
+d233="ⷴ"
+d234="ⷵ"
+d235="ⷶ"
+d236="ⷷ"
+d237="ⷸ"
+d238="ⷹ"
+d239="ⷺ"
+d240="ⷻ"
+d241="ⷼ"
+d242="ⷽ"
+d243="ⷾ"
+d244="ⷿ"
+d245="꙯"
+d246="꙼"
+d247="꙽"
+d248="꛰"
+d249="꛱"
+d250="꣠"
+d251="꣡"
+d252="꣢"
+d253="꣣"
+d254="꣤"
+d255="꣥"
+d256="꣦"
+d257="꣧"
+d258="꣨"
+d259="꣩"
+d260="꣪"
+d261="꣫"
+d262="꣬"
+d263="꣭"
+d264="꣮"
+d265="꣯"
+d266="꣰"
+d267="꣱"
+d268="ꪰ"
+d269="ꪲ"
+d270="ꪳ"
+d271="ꪷ"
+d272="ꪸ"
+d273="ꪾ"
+d274="꪿"
+d275="꫁"
+d276="︠"
+d277="︡"
+d278="︢"
+d279="︣"
+d280="︤"
+d281="︥"
+d282="︦"
+d283="𐨏"
+d284="𐨸"
+d285="𝆅"
+d286="𝆆"
+d287="𝆇"
+d288="𝆈"
+d289="𝆉"
+d290="𝆪"
+d291="𝆫"
+d292="𝆬"
+d293="𝆭"
+d294="𝉂"
+d295="𝉃"
+d296="𝉄"
+
+num_diacritics="297"
+
+placeholder="􎻮"
+
+#####################################################################
+# Upload the image and print the placeholder
+#####################################################################
+
+upload_image_and_print_placeholder
diff --git a/st/khash.h b/st/khash.h
new file mode 100755
index 0000000..f75f347
--- /dev/null
+++ b/st/khash.h
@@ -0,0 +1,627 @@
+/* The MIT License
+
+ Copyright (c) 2008, 2009, 2011 by Attractive Chaos <attractor@live.co.uk>
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+*/
+
+/*
+ An example:
+
+#include "khash.h"
+KHASH_MAP_INIT_INT(32, char)
+int main() {
+ int ret, is_missing;
+ khiter_t k;
+ khash_t(32) *h = kh_init(32);
+ k = kh_put(32, h, 5, &ret);
+ kh_value(h, k) = 10;
+ k = kh_get(32, h, 10);
+ is_missing = (k == kh_end(h));
+ k = kh_get(32, h, 5);
+ kh_del(32, h, k);
+ for (k = kh_begin(h); k != kh_end(h); ++k)
+ if (kh_exist(h, k)) kh_value(h, k) = 1;
+ kh_destroy(32, h);
+ return 0;
+}
+*/
+
+/*
+ 2013-05-02 (0.2.8):
+
+ * Use quadratic probing. When the capacity is power of 2, stepping function
+ i*(i+1)/2 guarantees to traverse each bucket. It is better than double
+ hashing on cache performance and is more robust than linear probing.
+
+ In theory, double hashing should be more robust than quadratic probing.
+ However, my implementation is probably not for large hash tables, because
+ the second hash function is closely tied to the first hash function,
+ which reduce the effectiveness of double hashing.
+
+ Reference: http://research.cs.vt.edu/AVresearch/hashing/quadratic.php
+
+ 2011-12-29 (0.2.7):
+
+ * Minor code clean up; no actual effect.
+
+ 2011-09-16 (0.2.6):
+
+ * The capacity is a power of 2. This seems to dramatically improve the
+ speed for simple keys. Thank Zilong Tan for the suggestion. Reference:
+
+ - http://code.google.com/p/ulib/
+ - http://nothings.org/computer/judy/
+
+ * Allow to optionally use linear probing which usually has better
+ performance for random input. Double hashing is still the default as it
+ is more robust to certain non-random input.
+
+ * Added Wang's integer hash function (not used by default). This hash
+ function is more robust to certain non-random input.
+
+ 2011-02-14 (0.2.5):
+
+ * Allow to declare global functions.
+
+ 2009-09-26 (0.2.4):
+
+ * Improve portability
+
+ 2008-09-19 (0.2.3):
+
+ * Corrected the example
+ * Improved interfaces
+
+ 2008-09-11 (0.2.2):
+
+ * Improved speed a little in kh_put()
+
+ 2008-09-10 (0.2.1):
+
+ * Added kh_clear()
+ * Fixed a compiling error
+
+ 2008-09-02 (0.2.0):
+
+ * Changed to token concatenation which increases flexibility.
+
+ 2008-08-31 (0.1.2):
+
+ * Fixed a bug in kh_get(), which has not been tested previously.
+
+ 2008-08-31 (0.1.1):
+
+ * Added destructor
+*/
+
+
+#ifndef __AC_KHASH_H
+#define __AC_KHASH_H
+
+/*!
+ @header
+
+ Generic hash table library.
+ */
+
+#define AC_VERSION_KHASH_H "0.2.8"
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+
+/* compiler specific configuration */
+
+#if UINT_MAX == 0xffffffffu
+typedef unsigned int khint32_t;
+#elif ULONG_MAX == 0xffffffffu
+typedef unsigned long khint32_t;
+#endif
+
+#if ULONG_MAX == ULLONG_MAX
+typedef unsigned long khint64_t;
+#else
+typedef unsigned long long khint64_t;
+#endif
+
+#ifndef kh_inline
+#ifdef _MSC_VER
+#define kh_inline __inline
+#else
+#define kh_inline inline
+#endif
+#endif /* kh_inline */
+
+#ifndef klib_unused
+#if (defined __clang__ && __clang_major__ >= 3) || (defined __GNUC__ && __GNUC__ >= 3)
+#define klib_unused __attribute__ ((__unused__))
+#else
+#define klib_unused
+#endif
+#endif /* klib_unused */
+
+typedef khint32_t khint_t;
+typedef khint_t khiter_t;
+
+#define __ac_isempty(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&2)
+#define __ac_isdel(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&1)
+#define __ac_iseither(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&3)
+#define __ac_set_isdel_false(flag, i) (flag[i>>4]&=~(1ul<<((i&0xfU)<<1)))
+#define __ac_set_isempty_false(flag, i) (flag[i>>4]&=~(2ul<<((i&0xfU)<<1)))
+#define __ac_set_isboth_false(flag, i) (flag[i>>4]&=~(3ul<<((i&0xfU)<<1)))
+#define __ac_set_isdel_true(flag, i) (flag[i>>4]|=1ul<<((i&0xfU)<<1))
+
+#define __ac_fsize(m) ((m) < 16? 1 : (m)>>4)
+
+#ifndef kroundup32
+#define kroundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x))
+#endif
+
+#ifndef kcalloc
+#define kcalloc(N,Z) calloc(N,Z)
+#endif
+#ifndef kmalloc
+#define kmalloc(Z) malloc(Z)
+#endif
+#ifndef krealloc
+#define krealloc(P,Z) realloc(P,Z)
+#endif
+#ifndef kfree
+#define kfree(P) free(P)
+#endif
+
+static const double __ac_HASH_UPPER = 0.77;
+
+#define __KHASH_TYPE(name, khkey_t, khval_t) \
+ typedef struct kh_##name##_s { \
+ khint_t n_buckets, size, n_occupied, upper_bound; \
+ khint32_t *flags; \
+ khkey_t *keys; \
+ khval_t *vals; \
+ } kh_##name##_t;
+
+#define __KHASH_PROTOTYPES(name, khkey_t, khval_t) \
+ extern kh_##name##_t *kh_init_##name(void); \
+ extern void kh_destroy_##name(kh_##name##_t *h); \
+ extern void kh_clear_##name(kh_##name##_t *h); \
+ extern khint_t kh_get_##name(const kh_##name##_t *h, khkey_t key); \
+ extern int kh_resize_##name(kh_##name##_t *h, khint_t new_n_buckets); \
+ extern khint_t kh_put_##name(kh_##name##_t *h, khkey_t key, int *ret); \
+ extern void kh_del_##name(kh_##name##_t *h, khint_t x);
+
+#define __KHASH_IMPL(name, SCOPE, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \
+ SCOPE kh_##name##_t *kh_init_##name(void) { \
+ return (kh_##name##_t*)kcalloc(1, sizeof(kh_##name##_t)); \
+ } \
+ SCOPE void kh_destroy_##name(kh_##name##_t *h) \
+ { \
+ if (h) { \
+ kfree((void *)h->keys); kfree(h->flags); \
+ kfree((void *)h->vals); \
+ kfree(h); \
+ } \
+ } \
+ SCOPE void kh_clear_##name(kh_##name##_t *h) \
+ { \
+ if (h && h->flags) { \
+ memset(h->flags, 0xaa, __ac_fsize(h->n_buckets) * sizeof(khint32_t)); \
+ h->size = h->n_occupied = 0; \
+ } \
+ } \
+ SCOPE khint_t kh_get_##name(const kh_##name##_t *h, khkey_t key) \
+ { \
+ if (h->n_buckets) { \
+ khint_t k, i, last, mask, step = 0; \
+ mask = h->n_buckets - 1; \
+ k = __hash_func(key); i = k & mask; \
+ last = i; \
+ while (!__ac_isempty(h->flags, i) && (__ac_isdel(h->flags, i) || !__hash_equal(h->keys[i], key))) { \
+ i = (i + (++step)) & mask; \
+ if (i == last) return h->n_buckets; \
+ } \
+ return __ac_iseither(h->flags, i)? h->n_buckets : i; \
+ } else return 0; \
+ } \
+ SCOPE int kh_resize_##name(kh_##name##_t *h, khint_t new_n_buckets) \
+ { /* This function uses 0.25*n_buckets bytes of working space instead of [sizeof(key_t+val_t)+.25]*n_buckets. */ \
+ khint32_t *new_flags = 0; \
+ khint_t j = 1; \
+ { \
+ kroundup32(new_n_buckets); \
+ if (new_n_buckets < 4) new_n_buckets = 4; \
+ if (h->size >= (khint_t)(new_n_buckets * __ac_HASH_UPPER + 0.5)) j = 0; /* requested size is too small */ \
+ else { /* hash table size to be changed (shrink or expand); rehash */ \
+ new_flags = (khint32_t*)kmalloc(__ac_fsize(new_n_buckets) * sizeof(khint32_t)); \
+ if (!new_flags) return -1; \
+ memset(new_flags, 0xaa, __ac_fsize(new_n_buckets) * sizeof(khint32_t)); \
+ if (h->n_buckets < new_n_buckets) { /* expand */ \
+ khkey_t *new_keys = (khkey_t*)krealloc((void *)h->keys, new_n_buckets * sizeof(khkey_t)); \
+ if (!new_keys) { kfree(new_flags); return -1; } \
+ h->keys = new_keys; \
+ if (kh_is_map) { \
+ khval_t *new_vals = (khval_t*)krealloc((void *)h->vals, new_n_buckets * sizeof(khval_t)); \
+ if (!new_vals) { kfree(new_flags); return -1; } \
+ h->vals = new_vals; \
+ } \
+ } /* otherwise shrink */ \
+ } \
+ } \
+ if (j) { /* rehashing is needed */ \
+ for (j = 0; j != h->n_buckets; ++j) { \
+ if (__ac_iseither(h->flags, j) == 0) { \
+ khkey_t key = h->keys[j]; \
+ khval_t val; \
+ khint_t new_mask; \
+ new_mask = new_n_buckets - 1; \
+ if (kh_is_map) val = h->vals[j]; \
+ __ac_set_isdel_true(h->flags, j); \
+ while (1) { /* kick-out process; sort of like in Cuckoo hashing */ \
+ khint_t k, i, step = 0; \
+ k = __hash_func(key); \
+ i = k & new_mask; \
+ while (!__ac_isempty(new_flags, i)) i = (i + (++step)) & new_mask; \
+ __ac_set_isempty_false(new_flags, i); \
+ if (i < h->n_buckets && __ac_iseither(h->flags, i) == 0) { /* kick out the existing element */ \
+ { khkey_t tmp = h->keys[i]; h->keys[i] = key; key = tmp; } \
+ if (kh_is_map) { khval_t tmp = h->vals[i]; h->vals[i] = val; val = tmp; } \
+ __ac_set_isdel_true(h->flags, i); /* mark it as deleted in the old hash table */ \
+ } else { /* write the element and jump out of the loop */ \
+ h->keys[i] = key; \
+ if (kh_is_map) h->vals[i] = val; \
+ break; \
+ } \
+ } \
+ } \
+ } \
+ if (h->n_buckets > new_n_buckets) { /* shrink the hash table */ \
+ h->keys = (khkey_t*)krealloc((void *)h->keys, new_n_buckets * sizeof(khkey_t)); \
+ if (kh_is_map) h->vals = (khval_t*)krealloc((void *)h->vals, new_n_buckets * sizeof(khval_t)); \
+ } \
+ kfree(h->flags); /* free the working space */ \
+ h->flags = new_flags; \
+ h->n_buckets = new_n_buckets; \
+ h->n_occupied = h->size; \
+ h->upper_bound = (khint_t)(h->n_buckets * __ac_HASH_UPPER + 0.5); \
+ } \
+ return 0; \
+ } \
+ SCOPE khint_t kh_put_##name(kh_##name##_t *h, khkey_t key, int *ret) \
+ { \
+ khint_t x; \
+ if (h->n_occupied >= h->upper_bound) { /* update the hash table */ \
+ if (h->n_buckets > (h->size<<1)) { \
+ if (kh_resize_##name(h, h->n_buckets - 1) < 0) { /* clear "deleted" elements */ \
+ *ret = -1; return h->n_buckets; \
+ } \
+ } else if (kh_resize_##name(h, h->n_buckets + 1) < 0) { /* expand the hash table */ \
+ *ret = -1; return h->n_buckets; \
+ } \
+ } /* TODO: to implement automatically shrinking; resize() already support shrinking */ \
+ { \
+ khint_t k, i, site, last, mask = h->n_buckets - 1, step = 0; \
+ x = site = h->n_buckets; k = __hash_func(key); i = k & mask; \
+ if (__ac_isempty(h->flags, i)) x = i; /* for speed up */ \
+ else { \
+ last = i; \
+ while (!__ac_isempty(h->flags, i) && (__ac_isdel(h->flags, i) || !__hash_equal(h->keys[i], key))) { \
+ if (__ac_isdel(h->flags, i)) site = i; \
+ i = (i + (++step)) & mask; \
+ if (i == last) { x = site; break; } \
+ } \
+ if (x == h->n_buckets) { \
+ if (__ac_isempty(h->flags, i) && site != h->n_buckets) x = site; \
+ else x = i; \
+ } \
+ } \
+ } \
+ if (__ac_isempty(h->flags, x)) { /* not present at all */ \
+ h->keys[x] = key; \
+ __ac_set_isboth_false(h->flags, x); \
+ ++h->size; ++h->n_occupied; \
+ *ret = 1; \
+ } else if (__ac_isdel(h->flags, x)) { /* deleted */ \
+ h->keys[x] = key; \
+ __ac_set_isboth_false(h->flags, x); \
+ ++h->size; \
+ *ret = 2; \
+ } else *ret = 0; /* Don't touch h->keys[x] if present and not deleted */ \
+ return x; \
+ } \
+ SCOPE void kh_del_##name(kh_##name##_t *h, khint_t x) \
+ { \
+ if (x != h->n_buckets && !__ac_iseither(h->flags, x)) { \
+ __ac_set_isdel_true(h->flags, x); \
+ --h->size; \
+ } \
+ }
+
+#define KHASH_DECLARE(name, khkey_t, khval_t) \
+ __KHASH_TYPE(name, khkey_t, khval_t) \
+ __KHASH_PROTOTYPES(name, khkey_t, khval_t)
+
+#define KHASH_INIT2(name, SCOPE, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \
+ __KHASH_TYPE(name, khkey_t, khval_t) \
+ __KHASH_IMPL(name, SCOPE, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal)
+
+#define KHASH_INIT(name, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \
+ KHASH_INIT2(name, static kh_inline klib_unused, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal)
+
+/* --- BEGIN OF HASH FUNCTIONS --- */
+
+/*! @function
+ @abstract Integer hash function
+ @param key The integer [khint32_t]
+ @return The hash value [khint_t]
+ */
+#define kh_int_hash_func(key) (khint32_t)(key)
+/*! @function
+ @abstract Integer comparison function
+ */
+#define kh_int_hash_equal(a, b) ((a) == (b))
+/*! @function
+ @abstract 64-bit integer hash function
+ @param key The integer [khint64_t]
+ @return The hash value [khint_t]
+ */
+#define kh_int64_hash_func(key) (khint32_t)((key)>>33^(key)^(key)<<11)
+/*! @function
+ @abstract 64-bit integer comparison function
+ */
+#define kh_int64_hash_equal(a, b) ((a) == (b))
+/*! @function
+ @abstract const char* hash function
+ @param s Pointer to a null terminated string
+ @return The hash value
+ */
+static kh_inline khint_t __ac_X31_hash_string(const char *s)
+{
+ khint_t h = (khint_t)*s;
+ if (h) for (++s ; *s; ++s) h = (h << 5) - h + (khint_t)*s;
+ return h;
+}
+/*! @function
+ @abstract Another interface to const char* hash function
+ @param key Pointer to a null terminated string [const char*]
+ @return The hash value [khint_t]
+ */
+#define kh_str_hash_func(key) __ac_X31_hash_string(key)
+/*! @function
+ @abstract Const char* comparison function
+ */
+#define kh_str_hash_equal(a, b) (strcmp(a, b) == 0)
+
+static kh_inline khint_t __ac_Wang_hash(khint_t key)
+{
+ key += ~(key << 15);
+ key ^= (key >> 10);
+ key += (key << 3);
+ key ^= (key >> 6);
+ key += ~(key << 11);
+ key ^= (key >> 16);
+ return key;
+}
+#define kh_int_hash_func2(key) __ac_Wang_hash((khint_t)key)
+
+/* --- END OF HASH FUNCTIONS --- */
+
+/* Other convenient macros... */
+
+/*!
+ @abstract Type of the hash table.
+ @param name Name of the hash table [symbol]
+ */
+#define khash_t(name) kh_##name##_t
+
+/*! @function
+ @abstract Initiate a hash table.
+ @param name Name of the hash table [symbol]
+ @return Pointer to the hash table [khash_t(name)*]
+ */
+#define kh_init(name) kh_init_##name()
+
+/*! @function
+ @abstract Destroy a hash table.
+ @param name Name of the hash table [symbol]
+ @param h Pointer to the hash table [khash_t(name)*]
+ */
+#define kh_destroy(name, h) kh_destroy_##name(h)
+
+/*! @function
+ @abstract Reset a hash table without deallocating memory.
+ @param name Name of the hash table [symbol]
+ @param h Pointer to the hash table [khash_t(name)*]
+ */
+#define kh_clear(name, h) kh_clear_##name(h)
+
+/*! @function
+ @abstract Resize a hash table.
+ @param name Name of the hash table [symbol]
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param s New size [khint_t]
+ */
+#define kh_resize(name, h, s) kh_resize_##name(h, s)
+
+/*! @function
+ @abstract Insert a key to the hash table.
+ @param name Name of the hash table [symbol]
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param k Key [type of keys]
+ @param r Extra return code: -1 if the operation failed;
+ 0 if the key is present in the hash table;
+ 1 if the bucket is empty (never used); 2 if the element in
+ the bucket has been deleted [int*]
+ @return Iterator to the inserted element [khint_t]
+ */
+#define kh_put(name, h, k, r) kh_put_##name(h, k, r)
+
+/*! @function
+ @abstract Retrieve a key from the hash table.
+ @param name Name of the hash table [symbol]
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param k Key [type of keys]
+ @return Iterator to the found element, or kh_end(h) if the element is absent [khint_t]
+ */
+#define kh_get(name, h, k) kh_get_##name(h, k)
+
+/*! @function
+ @abstract Remove a key from the hash table.
+ @param name Name of the hash table [symbol]
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param k Iterator to the element to be deleted [khint_t]
+ */
+#define kh_del(name, h, k) kh_del_##name(h, k)
+
+/*! @function
+ @abstract Test whether a bucket contains data.
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param x Iterator to the bucket [khint_t]
+ @return 1 if containing data; 0 otherwise [int]
+ */
+#define kh_exist(h, x) (!__ac_iseither((h)->flags, (x)))
+
+/*! @function
+ @abstract Get key given an iterator
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param x Iterator to the bucket [khint_t]
+ @return Key [type of keys]
+ */
+#define kh_key(h, x) ((h)->keys[x])
+
+/*! @function
+ @abstract Get value given an iterator
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param x Iterator to the bucket [khint_t]
+ @return Value [type of values]
+ @discussion For hash sets, calling this results in segfault.
+ */
+#define kh_val(h, x) ((h)->vals[x])
+
+/*! @function
+ @abstract Alias of kh_val()
+ */
+#define kh_value(h, x) ((h)->vals[x])
+
+/*! @function
+ @abstract Get the start iterator
+ @param h Pointer to the hash table [khash_t(name)*]
+ @return The start iterator [khint_t]
+ */
+#define kh_begin(h) (khint_t)(0)
+
+/*! @function
+ @abstract Get the end iterator
+ @param h Pointer to the hash table [khash_t(name)*]
+ @return The end iterator [khint_t]
+ */
+#define kh_end(h) ((h)->n_buckets)
+
+/*! @function
+ @abstract Get the number of elements in the hash table
+ @param h Pointer to the hash table [khash_t(name)*]
+ @return Number of elements in the hash table [khint_t]
+ */
+#define kh_size(h) ((h)->size)
+
+/*! @function
+ @abstract Get the number of buckets in the hash table
+ @param h Pointer to the hash table [khash_t(name)*]
+ @return Number of buckets in the hash table [khint_t]
+ */
+#define kh_n_buckets(h) ((h)->n_buckets)
+
+/*! @function
+ @abstract Iterate over the entries in the hash table
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param kvar Variable to which key will be assigned
+ @param vvar Variable to which value will be assigned
+ @param code Block of code to execute
+ */
+#define kh_foreach(h, kvar, vvar, code) { khint_t __i; \
+ for (__i = kh_begin(h); __i != kh_end(h); ++__i) { \
+ if (!kh_exist(h,__i)) continue; \
+ (kvar) = kh_key(h,__i); \
+ (vvar) = kh_val(h,__i); \
+ code; \
+ } }
+
+/*! @function
+ @abstract Iterate over the values in the hash table
+ @param h Pointer to the hash table [khash_t(name)*]
+ @param vvar Variable to which value will be assigned
+ @param code Block of code to execute
+ */
+#define kh_foreach_value(h, vvar, code) { khint_t __i; \
+ for (__i = kh_begin(h); __i != kh_end(h); ++__i) { \
+ if (!kh_exist(h,__i)) continue; \
+ (vvar) = kh_val(h,__i); \
+ code; \
+ } }
+
+/* More convenient interfaces */
+
+/*! @function
+ @abstract Instantiate a hash set containing integer keys
+ @param name Name of the hash table [symbol]
+ */
+#define KHASH_SET_INIT_INT(name) \
+ KHASH_INIT(name, khint32_t, char, 0, kh_int_hash_func, kh_int_hash_equal)
+
+/*! @function
+ @abstract Instantiate a hash map containing integer keys
+ @param name Name of the hash table [symbol]
+ @param khval_t Type of values [type]
+ */
+#define KHASH_MAP_INIT_INT(name, khval_t) \
+ KHASH_INIT(name, khint32_t, khval_t, 1, kh_int_hash_func, kh_int_hash_equal)
+
+/*! @function
+ @abstract Instantiate a hash set containing 64-bit integer keys
+ @param name Name of the hash table [symbol]
+ */
+#define KHASH_SET_INIT_INT64(name) \
+ KHASH_INIT(name, khint64_t, char, 0, kh_int64_hash_func, kh_int64_hash_equal)
+
+/*! @function
+ @abstract Instantiate a hash map containing 64-bit integer keys
+ @param name Name of the hash table [symbol]
+ @param khval_t Type of values [type]
+ */
+#define KHASH_MAP_INIT_INT64(name, khval_t) \
+ KHASH_INIT(name, khint64_t, khval_t, 1, kh_int64_hash_func, kh_int64_hash_equal)
+
+typedef const char *kh_cstr_t;
+/*! @function
+ @abstract Instantiate a hash map containing const char* keys
+ @param name Name of the hash table [symbol]
+ */
+#define KHASH_SET_INIT_STR(name) \
+ KHASH_INIT(name, kh_cstr_t, char, 0, kh_str_hash_func, kh_str_hash_equal)
+
+/*! @function
+ @abstract Instantiate a hash map containing const char* keys
+ @param name Name of the hash table [symbol]
+ @param khval_t Type of values [type]
+ */
+#define KHASH_MAP_INIT_STR(name, khval_t) \
+ KHASH_INIT(name, kh_cstr_t, khval_t, 1, kh_str_hash_func, kh_str_hash_equal)
+
+#endif /* __AC_KHASH_H */
diff --git a/st/kvec.h b/st/kvec.h
new file mode 100755
index 0000000..10f1c5b
--- /dev/null
+++ b/st/kvec.h
@@ -0,0 +1,90 @@
+/* The MIT License
+
+ Copyright (c) 2008, by Attractive Chaos <attractor@live.co.uk>
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+*/
+
+/*
+ An example:
+
+#include "kvec.h"
+int main() {
+ kvec_t(int) array;
+ kv_init(array);
+ kv_push(int, array, 10); // append
+ kv_a(int, array, 20) = 5; // dynamic
+ kv_A(array, 20) = 4; // static
+ kv_destroy(array);
+ return 0;
+}
+*/
+
+/*
+ 2008-09-22 (0.1.0):
+
+ * The initial version.
+
+*/
+
+#ifndef AC_KVEC_H
+#define AC_KVEC_H
+
+#include <stdlib.h>
+
+#define kv_roundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x))
+
+#define kvec_t(type) struct { size_t n, m; type *a; }
+#define kv_init(v) ((v).n = (v).m = 0, (v).a = 0)
+#define kv_destroy(v) free((v).a)
+#define kv_A(v, i) ((v).a[(i)])
+#define kv_pop(v) ((v).a[--(v).n])
+#define kv_size(v) ((v).n)
+#define kv_max(v) ((v).m)
+
+#define kv_resize(type, v, s) ((v).m = (s), (v).a = (type*)realloc((v).a, sizeof(type) * (v).m))
+
+#define kv_copy(type, v1, v0) do { \
+ if ((v1).m < (v0).n) kv_resize(type, v1, (v0).n); \
+ (v1).n = (v0).n; \
+ memcpy((v1).a, (v0).a, sizeof(type) * (v0).n); \
+ } while (0) \
+
+#define kv_push(type, v, x) do { \
+ if ((v).n == (v).m) { \
+ (v).m = (v).m? (v).m<<1 : 2; \
+ (v).a = (type*)realloc((v).a, sizeof(type) * (v).m); \
+ } \
+ (v).a[(v).n++] = (x); \
+ } while (0)
+
+#define kv_pushp(type, v) ((((v).n == (v).m)? \
+ ((v).m = ((v).m? (v).m<<1 : 2), \
+ (v).a = (type*)realloc((v).a, sizeof(type) * (v).m), 0) \
+ : 0), ((v).a + ((v).n++)))
+
+#define kv_a(type, v, i) (((v).m <= (size_t)(i)? \
+ ((v).m = (v).n = (i) + 1, kv_roundup32((v).m), \
+ (v).a = (type*)realloc((v).a, sizeof(type) * (v).m), 0) \
+ : (v).n <= (size_t)(i)? (v).n = (i) + 1 \
+ : 0), (v).a[(i)])
+
+#endif
diff --git a/st/rowcolumn_diacritics_helpers.c b/st/rowcolumn_diacritics_helpers.c
new file mode 100755
index 0000000..829c0fc
--- /dev/null
+++ b/st/rowcolumn_diacritics_helpers.c
@@ -0,0 +1,391 @@
+#include <stdint.h>
+
+uint16_t diacritic_to_num(uint32_t code)
+{
+ switch (code) {
+ case 0x305:
+ return code - 0x305 + 1;
+ case 0x30d:
+ case 0x30e:
+ return code - 0x30d + 2;
+ case 0x310:
+ return code - 0x310 + 4;
+ case 0x312:
+ return code - 0x312 + 5;
+ case 0x33d:
+ case 0x33e:
+ case 0x33f:
+ return code - 0x33d + 6;
+ case 0x346:
+ return code - 0x346 + 9;
+ case 0x34a:
+ case 0x34b:
+ case 0x34c:
+ return code - 0x34a + 10;
+ case 0x350:
+ case 0x351:
+ case 0x352:
+ return code - 0x350 + 13;
+ case 0x357:
+ return code - 0x357 + 16;
+ case 0x35b:
+ return code - 0x35b + 17;
+ case 0x363:
+ case 0x364:
+ case 0x365:
+ case 0x366:
+ case 0x367:
+ case 0x368:
+ case 0x369:
+ case 0x36a:
+ case 0x36b:
+ case 0x36c:
+ case 0x36d:
+ case 0x36e:
+ case 0x36f:
+ return code - 0x363 + 18;
+ case 0x483:
+ case 0x484:
+ case 0x485:
+ case 0x486:
+ case 0x487:
+ return code - 0x483 + 31;
+ case 0x592:
+ case 0x593:
+ case 0x594:
+ case 0x595:
+ return code - 0x592 + 36;
+ case 0x597:
+ case 0x598:
+ case 0x599:
+ return code - 0x597 + 40;
+ case 0x59c:
+ case 0x59d:
+ case 0x59e:
+ case 0x59f:
+ case 0x5a0:
+ case 0x5a1:
+ return code - 0x59c + 43;
+ case 0x5a8:
+ case 0x5a9:
+ return code - 0x5a8 + 49;
+ case 0x5ab:
+ case 0x5ac:
+ return code - 0x5ab + 51;
+ case 0x5af:
+ return code - 0x5af + 53;
+ case 0x5c4:
+ return code - 0x5c4 + 54;
+ case 0x610:
+ case 0x611:
+ case 0x612:
+ case 0x613:
+ case 0x614:
+ case 0x615:
+ case 0x616:
+ case 0x617:
+ return code - 0x610 + 55;
+ case 0x657:
+ case 0x658:
+ case 0x659:
+ case 0x65a:
+ case 0x65b:
+ return code - 0x657 + 63;
+ case 0x65d:
+ case 0x65e:
+ return code - 0x65d + 68;
+ case 0x6d6:
+ case 0x6d7:
+ case 0x6d8:
+ case 0x6d9:
+ case 0x6da:
+ case 0x6db:
+ case 0x6dc:
+ return code - 0x6d6 + 70;
+ case 0x6df:
+ case 0x6e0:
+ case 0x6e1:
+ case 0x6e2:
+ return code - 0x6df + 77;
+ case 0x6e4:
+ return code - 0x6e4 + 81;
+ case 0x6e7:
+ case 0x6e8:
+ return code - 0x6e7 + 82;
+ case 0x6eb:
+ case 0x6ec:
+ return code - 0x6eb + 84;
+ case 0x730:
+ return code - 0x730 + 86;
+ case 0x732:
+ case 0x733:
+ return code - 0x732 + 87;
+ case 0x735:
+ case 0x736:
+ return code - 0x735 + 89;
+ case 0x73a:
+ return code - 0x73a + 91;
+ case 0x73d:
+ return code - 0x73d + 92;
+ case 0x73f:
+ case 0x740:
+ case 0x741:
+ return code - 0x73f + 93;
+ case 0x743:
+ return code - 0x743 + 96;
+ case 0x745:
+ return code - 0x745 + 97;
+ case 0x747:
+ return code - 0x747 + 98;
+ case 0x749:
+ case 0x74a:
+ return code - 0x749 + 99;
+ case 0x7eb:
+ case 0x7ec:
+ case 0x7ed:
+ case 0x7ee:
+ case 0x7ef:
+ case 0x7f0:
+ case 0x7f1:
+ return code - 0x7eb + 101;
+ case 0x7f3:
+ return code - 0x7f3 + 108;
+ case 0x816:
+ case 0x817:
+ case 0x818:
+ case 0x819:
+ return code - 0x816 + 109;
+ case 0x81b:
+ case 0x81c:
+ case 0x81d:
+ case 0x81e:
+ case 0x81f:
+ case 0x820:
+ case 0x821:
+ case 0x822:
+ case 0x823:
+ return code - 0x81b + 113;
+ case 0x825:
+ case 0x826:
+ case 0x827:
+ return code - 0x825 + 122;
+ case 0x829:
+ case 0x82a:
+ case 0x82b:
+ case 0x82c:
+ case 0x82d:
+ return code - 0x829 + 125;
+ case 0x951:
+ return code - 0x951 + 130;
+ case 0x953:
+ case 0x954:
+ return code - 0x953 + 131;
+ case 0xf82:
+ case 0xf83:
+ return code - 0xf82 + 133;
+ case 0xf86:
+ case 0xf87:
+ return code - 0xf86 + 135;
+ case 0x135d:
+ case 0x135e:
+ case 0x135f:
+ return code - 0x135d + 137;
+ case 0x17dd:
+ return code - 0x17dd + 140;
+ case 0x193a:
+ return code - 0x193a + 141;
+ case 0x1a17:
+ return code - 0x1a17 + 142;
+ case 0x1a75:
+ case 0x1a76:
+ case 0x1a77:
+ case 0x1a78:
+ case 0x1a79:
+ case 0x1a7a:
+ case 0x1a7b:
+ case 0x1a7c:
+ return code - 0x1a75 + 143;
+ case 0x1b6b:
+ return code - 0x1b6b + 151;
+ case 0x1b6d:
+ case 0x1b6e:
+ case 0x1b6f:
+ case 0x1b70:
+ case 0x1b71:
+ case 0x1b72:
+ case 0x1b73:
+ return code - 0x1b6d + 152;
+ case 0x1cd0:
+ case 0x1cd1:
+ case 0x1cd2:
+ return code - 0x1cd0 + 159;
+ case 0x1cda:
+ case 0x1cdb:
+ return code - 0x1cda + 162;
+ case 0x1ce0:
+ return code - 0x1ce0 + 164;
+ case 0x1dc0:
+ case 0x1dc1:
+ return code - 0x1dc0 + 165;
+ case 0x1dc3:
+ case 0x1dc4:
+ case 0x1dc5:
+ case 0x1dc6:
+ case 0x1dc7:
+ case 0x1dc8:
+ case 0x1dc9:
+ return code - 0x1dc3 + 167;
+ case 0x1dcb:
+ case 0x1dcc:
+ return code - 0x1dcb + 174;
+ case 0x1dd1:
+ case 0x1dd2:
+ case 0x1dd3:
+ case 0x1dd4:
+ case 0x1dd5:
+ case 0x1dd6:
+ case 0x1dd7:
+ case 0x1dd8:
+ case 0x1dd9:
+ case 0x1dda:
+ case 0x1ddb:
+ case 0x1ddc:
+ case 0x1ddd:
+ case 0x1dde:
+ case 0x1ddf:
+ case 0x1de0:
+ case 0x1de1:
+ case 0x1de2:
+ case 0x1de3:
+ case 0x1de4:
+ case 0x1de5:
+ case 0x1de6:
+ return code - 0x1dd1 + 176;
+ case 0x1dfe:
+ return code - 0x1dfe + 198;
+ case 0x20d0:
+ case 0x20d1:
+ return code - 0x20d0 + 199;
+ case 0x20d4:
+ case 0x20d5:
+ case 0x20d6:
+ case 0x20d7:
+ return code - 0x20d4 + 201;
+ case 0x20db:
+ case 0x20dc:
+ return code - 0x20db + 205;
+ case 0x20e1:
+ return code - 0x20e1 + 207;
+ case 0x20e7:
+ return code - 0x20e7 + 208;
+ case 0x20e9:
+ return code - 0x20e9 + 209;
+ case 0x20f0:
+ return code - 0x20f0 + 210;
+ case 0x2cef:
+ case 0x2cf0:
+ case 0x2cf1:
+ return code - 0x2cef + 211;
+ case 0x2de0:
+ case 0x2de1:
+ case 0x2de2:
+ case 0x2de3:
+ case 0x2de4:
+ case 0x2de5:
+ case 0x2de6:
+ case 0x2de7:
+ case 0x2de8:
+ case 0x2de9:
+ case 0x2dea:
+ case 0x2deb:
+ case 0x2dec:
+ case 0x2ded:
+ case 0x2dee:
+ case 0x2def:
+ case 0x2df0:
+ case 0x2df1:
+ case 0x2df2:
+ case 0x2df3:
+ case 0x2df4:
+ case 0x2df5:
+ case 0x2df6:
+ case 0x2df7:
+ case 0x2df8:
+ case 0x2df9:
+ case 0x2dfa:
+ case 0x2dfb:
+ case 0x2dfc:
+ case 0x2dfd:
+ case 0x2dfe:
+ case 0x2dff:
+ return code - 0x2de0 + 214;
+ case 0xa66f:
+ return code - 0xa66f + 246;
+ case 0xa67c:
+ case 0xa67d:
+ return code - 0xa67c + 247;
+ case 0xa6f0:
+ case 0xa6f1:
+ return code - 0xa6f0 + 249;
+ case 0xa8e0:
+ case 0xa8e1:
+ case 0xa8e2:
+ case 0xa8e3:
+ case 0xa8e4:
+ case 0xa8e5:
+ case 0xa8e6:
+ case 0xa8e7:
+ case 0xa8e8:
+ case 0xa8e9:
+ case 0xa8ea:
+ case 0xa8eb:
+ case 0xa8ec:
+ case 0xa8ed:
+ case 0xa8ee:
+ case 0xa8ef:
+ case 0xa8f0:
+ case 0xa8f1:
+ return code - 0xa8e0 + 251;
+ case 0xaab0:
+ return code - 0xaab0 + 269;
+ case 0xaab2:
+ case 0xaab3:
+ return code - 0xaab2 + 270;
+ case 0xaab7:
+ case 0xaab8:
+ return code - 0xaab7 + 272;
+ case 0xaabe:
+ case 0xaabf:
+ return code - 0xaabe + 274;
+ case 0xaac1:
+ return code - 0xaac1 + 276;
+ case 0xfe20:
+ case 0xfe21:
+ case 0xfe22:
+ case 0xfe23:
+ case 0xfe24:
+ case 0xfe25:
+ case 0xfe26:
+ return code - 0xfe20 + 277;
+ case 0x10a0f:
+ return code - 0x10a0f + 284;
+ case 0x10a38:
+ return code - 0x10a38 + 285;
+ case 0x1d185:
+ case 0x1d186:
+ case 0x1d187:
+ case 0x1d188:
+ case 0x1d189:
+ return code - 0x1d185 + 286;
+ case 0x1d1aa:
+ case 0x1d1ab:
+ case 0x1d1ac:
+ case 0x1d1ad:
+ return code - 0x1d1aa + 291;
+ case 0x1d242:
+ case 0x1d243:
+ case 0x1d244:
+ return code - 0x1d242 + 295;
+ }
+ return 0;
+}
diff --git a/st/st-alpha-changealpha-20230519-b44f2ad.diff b/st/st-alpha-changealpha-20230519-b44f2ad.diff
new file mode 100755
index 0000000..9d8bf6e
--- /dev/null
+++ b/st/st-alpha-changealpha-20230519-b44f2ad.diff
@@ -0,0 +1,194 @@
+diff --git a/st/config.def.h b/st_patched/config.def.h
+index 91ab8ca..59fc2a9 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -93,6 +93,10 @@ char *termname = "st-256color";
+ */
+ unsigned int tabspaces = 8;
+
++/* bg opacity */
++float alpha = 0.8;
++float alpha_def;
++
+ /* Terminal colors (16 first used in escape sequence) */
+ static const char *colorname[] = {
+ /* 8 normal colors */
+@@ -201,6 +205,9 @@ static Shortcut shortcuts[] = {
+ { TERMMOD, XK_Y, selpaste, {.i = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
++ { MODKEY, XK_bracketleft, chgalpha, {.f = -1} }, /* Decrease opacity */
++ { MODKEY|ShiftMask, XK_braceright, chgalpha, {.f = +1} }, /* Increase opacity */
++ { MODKEY, XK_bracketright,chgalpha, {.f = 0} }, /* Reset opacity */
+ };
+
+ /*
+diff --git a/st/st.h b/st_patched/st.h
+index fd3b0d8..cda8c13 100644
+--- a/st.h
++++ b/st.h
+@@ -124,3 +124,4 @@ extern unsigned int tabspaces;
+ extern unsigned int defaultfg;
+ extern unsigned int defaultbg;
+ extern unsigned int defaultcs;
++extern float alpha, alpha_def;
+diff --git a/st/config.mk b/st_patched/config.mk
+index 1e306f8..47c615e 100644
+--- a/config.mk
++++ b/config.mk
+@@ -16,7 +16,7 @@ PKG_CONFIG = pkg-config
+ INCS = -I$(X11INC) \
+ `$(PKG_CONFIG) --cflags fontconfig` \
+ `$(PKG_CONFIG) --cflags freetype2`
+-LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
++LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
+ `$(PKG_CONFIG) --libs fontconfig` \
+ `$(PKG_CONFIG) --libs freetype2`
+
+diff --git a/st/x.c b/st_patched/x.c
+index aa09997..3b05a55 100644
+--- a/x.c
++++ b/x.c
+@@ -59,6 +59,7 @@ static void zoom(const Arg *);
+ static void zoomabs(const Arg *);
+ static void zoomreset(const Arg *);
+ static void ttysend(const Arg *);
++static void chgalpha(const Arg *);
+
+ /* config.h for applying patches and the configuration. */
+ #include "config.h"
+@@ -105,6 +106,7 @@ typedef struct {
+ XSetWindowAttributes attrs;
+ int scr;
+ int isfixed; /* is fixed geometry? */
++ int depth; /* bit depth */
+ int l, t; /* left and top offset */
+ int gm; /* geometry mask */
+ } XWindow;
+@@ -243,6 +245,7 @@ static char *usedfont = NULL;
+ static double usedfontsize = 0;
+ static double defaultfontsize = 0;
+
++static char *opt_alpha = NULL;
+ static char *opt_class = NULL;
+ static char **opt_cmd = NULL;
+ static char *opt_embed = NULL;
+@@ -752,7 +755,7 @@ xresize(int col, int row)
+
+ XFreePixmap(xw.dpy, xw.buf);
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
+- DefaultDepth(xw.dpy, xw.scr));
++ xw.depth);
+ XftDrawChange(xw.draw, xw.buf);
+ xclear(0, 0, win.w, win.h);
+
+@@ -812,6 +815,13 @@ xloadcols(void)
+ else
+ die("could not allocate color %d\n", i);
+ }
++
++ /* set alpha value of bg color */
++ if (opt_alpha)
++ alpha = strtof(opt_alpha, NULL);
++ dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
++ dc.col[defaultbg].pixel &= 0x00FFFFFF;
++ dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
+ loaded = 1;
+ }
+
+@@ -1134,11 +1144,23 @@ xinit(int cols, int rows)
+ Window parent;
+ pid_t thispid = getpid();
+ XColor xmousefg, xmousebg;
++ XWindowAttributes attr;
++ XVisualInfo vis;
+
+ if (!(xw.dpy = XOpenDisplay(NULL)))
+ die("can't open display\n");
+ xw.scr = XDefaultScreen(xw.dpy);
+- xw.vis = XDefaultVisual(xw.dpy, xw.scr);
++
++ if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
++ parent = XRootWindow(xw.dpy, xw.scr);
++ xw.depth = 32;
++ } else {
++ XGetWindowAttributes(xw.dpy, parent, &attr);
++ xw.depth = attr.depth;
++ }
++
++ XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
++ xw.vis = vis.visual;
+
+ /* font */
+ if (!FcInit())
+@@ -1147,8 +1169,11 @@ xinit(int cols, int rows)
+ usedfont = (opt_font == NULL)? font : opt_font;
+ xloadfonts(usedfont, 0);
+
++ /* Backup default alpha value */
++ alpha_def = alpha;
++
+ /* colors */
+- xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
++ xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
+ xloadcols();
+
+ /* adjust fixed window geometry */
+@@ -1168,19 +1193,15 @@ xinit(int cols, int rows)
+ | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
+ xw.attrs.colormap = xw.cmap;
+
+- if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
+- parent = XRootWindow(xw.dpy, xw.scr);
+ xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
+- win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
++ win.w, win.h, 0, xw.depth, InputOutput,
+ xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
+ | CWEventMask | CWColormap, &xw.attrs);
+
+ memset(&gcvalues, 0, sizeof(gcvalues));
+ gcvalues.graphics_exposures = False;
+- dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
+- &gcvalues);
+- xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
+- DefaultDepth(xw.dpy, xw.scr));
++ xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
++ dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
+ XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
+ XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
+
+@@ -1371,6 +1392,24 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
+ return numspecs;
+ }
+
++void
++chgalpha(const Arg *arg)
++{
++ if (arg->f == -1.0f && alpha >= 0.1f)
++ alpha -= 0.1f;
++ else if (arg->f == 1.0f && alpha < 1.0f)
++ alpha += 0.1f;
++ else if (arg->f == 0.0f)
++ alpha = alpha_def;
++ else
++ return;
++
++ dc.col[defaultbg].color.alpha = (unsigned short)(0xFFFF * alpha);
++ /* Required to remove artifacting from borderpx */
++ cresize(0, 0);
++ redraw();
++}
++
+ void
+ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
+ {
+@@ -2038,6 +2077,9 @@ main(int argc, char *argv[])
+ case 'a':
+ allowaltscreen = 0;
+ break;
++ case 'A':
++ opt_alpha = EARGF(usage());
++ break;
+ case 'c':
+ opt_class = EARGF(usage());
+ break;
diff --git a/st/st.1 b/st/st.1
new file mode 100755
index 0000000..ef8c956
--- /dev/null
+++ b/st/st.1
@@ -0,0 +1,177 @@
+.TH ST 1 st\-VERSION
+.SH NAME
+st \- simple terminal (bread's build)
+.SH SYNOPSIS
+.B st
+.RB [ \-aiv ]
+.RB [ \-c
+.IR class ]
+.RB [ \-f
+.IR font ]
+.RB [ \-g
+.IR geometry ]
+.RB [ \-n
+.IR name ]
+.RB [ \-o
+.IR iofile ]
+.RB [ \-T
+.IR title ]
+.RB [ \-t
+.IR title ]
+.RB [ \-l
+.IR line ]
+.RB [ \-w
+.IR windowid ]
+.RB [[ \-e ]
+.IR command
+.RI [ arguments ...]]
+.PP
+.B st
+.RB [ \-aiv ]
+.RB [ \-c
+.IR class ]
+.RB [ \-f
+.IR font ]
+.RB [ \-g
+.IR geometry ]
+.RB [ \-n
+.IR name ]
+.RB [ \-o
+.IR iofile ]
+.RB [ \-T
+.IR title ]
+.RB [ \-t
+.IR title ]
+.RB [ \-w
+.IR windowid ]
+.RB \-l
+.IR line
+.RI [ stty_args ...]
+.SH DESCRIPTION
+.B st
+is a simple terminal emulator.
+.SH OPTIONS
+.TP
+.B \-a
+disable alternate screens in terminal
+.TP
+.BI \-c " class"
+defines the window class (default $TERM).
+.TP
+.BI \-f " font"
+defines the
+.I font
+to use when st is run.
+.TP
+.BI \-g " geometry"
+defines the X11 geometry string.
+The form is [=][<cols>{xX}<rows>][{+-}<xoffset>{+-}<yoffset>]. See
+.BR XParseGeometry (3)
+for further details.
+.TP
+.B \-i
+will fixate the position given with the -g option.
+.TP
+.BI \-n " name"
+defines the window instance name (default $TERM).
+.TP
+.BI \-o " iofile"
+writes all the I/O to
+.I iofile.
+This feature is useful when recording st sessions. A value of "-" means
+standard output.
+.TP
+.BI \-T " title"
+defines the window title (default 'st').
+.TP
+.BI \-t " title"
+defines the window title (default 'st').
+.TP
+.BI \-w " windowid"
+embeds st within the window identified by
+.I windowid
+.TP
+.BI \-l " line"
+use a tty
+.I line
+instead of a pseudo terminal.
+.I line
+should be a (pseudo-)serial device (e.g. /dev/ttyS0 on Linux for serial port
+0).
+When this flag is given
+remaining arguments are used as flags for
+.BR stty(1).
+By default st initializes the serial line to 8 bits, no parity, 1 stop bit
+and a 38400 baud rate. The speed is set by appending it as last argument
+(e.g. 'st -l /dev/ttyS0 115200'). Arguments before the last one are
+.BR stty(1)
+flags. If you want to set odd parity on 115200 baud use for example 'st -l
+/dev/ttyS0 parenb parodd 115200'. Set the number of bits by using for
+example 'st -l /dev/ttyS0 cs7 115200'. See
+.BR stty(1)
+for more arguments and cases.
+.TP
+.B \-v
+prints version information to stderr, then exits.
+.TP
+.BI \-e " command " [ " arguments " "... ]"
+st executes
+.I command
+instead of the shell. If this is used it
+.B must be the last option
+on the command line, as in xterm / rxvt.
+This option is only intended for compatibility,
+and all the remaining arguments are used as a command
+even without it.
+.SH SHORTCUTS
+.TP
+.B Break
+Send a break in the serial line.
+Break key is obtained in PC keyboards
+pressing at the same time control and pause.
+.TP
+.B Ctrl-Print Screen
+Toggle if st should print to the
+.I iofile.
+.TP
+.B Shift-Print Screen
+Print the full screen to the
+.I iofile.
+.TP
+.B Print Screen
+Print the selection to the
+.I iofile.
+.TP
+.B Ctrl-Shift-Page Up
+Increase font size.
+.TP
+.B Ctrl-Shift-Page Down
+Decrease font size.
+.TP
+.B Ctrl-Shift-Home
+Reset to default font size.
+.TP
+.B Ctrl-Shift-y
+Paste from primary selection (middle mouse button).
+.TP
+.B Ctrl-Shift-c
+Copy the selected text to the clipboard selection.
+.TP
+.B Ctrl-Shift-v
+Paste from the clipboard selection.
+.SH CUSTOMIZATION
+.B st
+can be customized by creating a custom config.h and (re)compiling the source
+code. This keeps it fast, secure and simple.
+.SH AUTHORS
+See the LICENSE file for the authors.
+.SH LICENSE
+See the LICENSE file for the terms of redistribution.
+.SH SEE ALSO
+.BR tabbed (1),
+.BR utmp (1),
+.BR stty (1),
+.BR scroll (1)
+.SH BUGS
+See the TODO file in the distribution.
+
diff --git a/st/st.c b/st/st.c
new file mode 100755
index 0000000..5553872
--- /dev/null
+++ b/st/st.c
@@ -0,0 +1,2584 @@
+/* See LICENSE for license details. */
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <pwd.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <termios.h>
+#include <unistd.h>
+#include <wchar.h>
+
+#include "st.h"
+#include "win.h"
+
+#if defined(__linux)
+#include <pty.h>
+#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
+#include <util.h>
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
+#include <libutil.h>
+#endif
+
+/* Arbitrary sizes */
+#define UTF_INVALID 0xFFFD
+#define UTF_SIZ 4
+#define ESC_BUF_SIZ (128 * UTF_SIZ)
+#define ESC_ARG_SIZ 16
+#define STR_BUF_SIZ ESC_BUF_SIZ
+#define STR_ARG_SIZ ESC_ARG_SIZ
+
+/* macros */
+#define IS_SET(flag) ((term.mode & (flag)) != 0)
+#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == 0x7f)
+#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
+#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
+#define ISDELIM(u) (u && wcschr(worddelimiters, u))
+
+#define TSCREEN term.screen[IS_SET(MODE_ALTSCREEN)]
+#define TLINEOFFSET(y) \
+ (((y) + TSCREEN.cur - TSCREEN.off + TSCREEN.size) % TSCREEN.size)
+#define TLINE(y) (TSCREEN.buffer[TLINEOFFSET(y)])
+
+enum term_mode {
+ MODE_WRAP = 1 << 0,
+ MODE_INSERT = 1 << 1,
+ MODE_ALTSCREEN = 1 << 2,
+ MODE_CRLF = 1 << 3,
+ MODE_ECHO = 1 << 4,
+ MODE_PRINT = 1 << 5,
+ MODE_UTF8 = 1 << 6,
+};
+
+enum cursor_movement { CURSOR_SAVE, CURSOR_LOAD };
+
+enum cursor_state {
+ CURSOR_DEFAULT = 0,
+ CURSOR_WRAPNEXT = 1,
+ CURSOR_ORIGIN = 2
+};
+
+enum charset {
+ CS_GRAPHIC0,
+ CS_GRAPHIC1,
+ CS_UK,
+ CS_USA,
+ CS_MULTI,
+ CS_GER,
+ CS_FIN
+};
+
+enum escape_state {
+ ESC_START = 1,
+ ESC_CSI = 2,
+ ESC_STR = 4, /* DCS, OSC, PM, APC */
+ ESC_ALTCHARSET = 8,
+ ESC_STR_END = 16, /* a final string was encountered */
+ ESC_TEST = 32, /* Enter in test mode */
+ ESC_UTF8 = 64,
+};
+
+typedef struct {
+ Glyph attr; /* current char attributes */
+ int x;
+ int y;
+ char state;
+} TCursor;
+
+typedef struct {
+ int mode;
+ int type;
+ int snap;
+ /*
+ * Selection variables:
+ * nb – normalized coordinates of the beginning of the selection
+ * ne – normalized coordinates of the end of the selection
+ * ob – original coordinates of the beginning of the selection
+ * oe – original coordinates of the end of the selection
+ */
+ struct {
+ int x, y;
+ } nb, ne, ob, oe;
+
+ int alt;
+} Selection;
+
+/* Screen lines */
+typedef struct {
+ Line *buffer; /* ring buffer */
+ int size; /* size of buffer */
+ int cur; /* start of active screen */
+ int off; /* scrollback line offset */
+ TCursor sc; /* saved cursor */
+} LineBuffer;
+
+/* Internal representation of the screen */
+typedef struct {
+ int row; /* nb row */
+ int col; /* nb col */
+ LineBuffer screen[2]; /* screen and alternate screen */
+ int linelen; /* allocated line length */
+ int *dirty; /* dirtyness of lines */
+ TCursor c; /* cursor */
+ int ocx; /* old cursor col */
+ int ocy; /* old cursor row */
+ int top; /* top scroll limit */
+ int bot; /* bottom scroll limit */
+ int mode; /* terminal mode flags */
+ int esc; /* escape state flags */
+ char trantbl[4]; /* charset table translation */
+ int charset; /* current charset */
+ int icharset; /* selected charset for sequence */
+ int *tabs;
+ Rune lastc; /* last printed char outside of sequence, 0 if control */
+} Term;
+
+/* CSI Escape sequence structs */
+/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
+typedef struct {
+ char buf[ESC_BUF_SIZ]; /* raw string */
+ size_t len; /* raw string length */
+ char priv;
+ int arg[ESC_ARG_SIZ];
+ int narg; /* nb of args */
+ char mode[2];
+} CSIEscape;
+
+/* STR Escape sequence structs */
+/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
+typedef struct {
+ char type; /* ESC type ... */
+ char *buf; /* allocated raw string */
+ size_t siz; /* allocation size */
+ size_t len; /* raw string length */
+ char *args[STR_ARG_SIZ];
+ int narg; /* nb of args */
+} STREscape;
+
+static void execsh(char *, char **);
+static void stty(char **);
+static void sigchld(int);
+static void ttywriteraw(const char *, size_t);
+
+static void csidump(void);
+static void csihandle(void);
+static void csiparse(void);
+static void csireset(void);
+static void osc_color_response(int, int, int);
+static int eschandle(uchar);
+static void strdump(void);
+static void strhandle(void);
+static void strparse(void);
+static void strreset(void);
+
+static void tprinter(char *, size_t);
+static void tdumpsel(void);
+static void tdumpline(int);
+static void tdump(void);
+static void tclearregion(int, int, int, int);
+static void tcursor(int);
+static void tdeletechar(int);
+static void tdeleteline(int);
+static void tinsertblank(int);
+static void tinsertblankline(int);
+static int tlinelen(int);
+static void tmoveto(int, int);
+static void tmoveato(int, int);
+static void tnewline(int);
+static void tputtab(int);
+static void tputc(Rune);
+static void treset(void);
+static void tscrollup(int, int);
+static void tscrolldown(int, int);
+static void tsetattr(const int *, int);
+static void tsetchar(Rune, const Glyph *, int, int);
+static void tsetdirt(int, int);
+static void tsetscroll(int, int);
+static void tswapscreen(void);
+static void tsetmode(int, int, const int *, int);
+static int twrite(const char *, int, int);
+static void tfulldirt(void);
+static void tcontrolcode(uchar);
+static void tdectest(char);
+static void tdefutf8(char);
+static int32_t tdefcolor(const int *, int *, int);
+static void tdeftran(char);
+static void tstrsequence(uchar);
+
+static void drawregion(int, int, int, int);
+static void clearline(Line, Glyph, int, int);
+static Line ensureline(Line);
+
+static void selnormalize(void);
+static void selscroll(int, int);
+static void selsnap(int *, int *, int);
+
+static size_t utf8decode(const char *, Rune *, size_t);
+static Rune utf8decodebyte(char, size_t *);
+static char utf8encodebyte(Rune, size_t);
+static size_t utf8validate(Rune *, size_t);
+
+static char *base64dec(const char *);
+static char base64dec_getc(const char **);
+
+static ssize_t xwrite(int, const char *, size_t);
+
+/* Globals */
+static Term term;
+static Selection sel;
+static CSIEscape csiescseq;
+static STREscape strescseq;
+static int iofd = 1;
+static int cmdfd;
+static pid_t pid;
+
+static const uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
+static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
+static const Rune utfmin[UTF_SIZ + 1] = {0, 0, 0x80, 0x800, 0x10000};
+static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF,
+ 0x10FFFF};
+
+ssize_t xwrite(int fd, const char *s, size_t len) {
+ size_t aux = len;
+ ssize_t r;
+
+ while (len > 0) {
+ r = write(fd, s, len);
+ if (r < 0)
+ return r;
+ len -= r;
+ s += r;
+ }
+
+ return aux;
+}
+
+void *xmalloc(size_t len) {
+ void *p;
+
+ if (!(p = malloc(len)))
+ die("malloc: %s\n", strerror(errno));
+
+ return p;
+}
+
+void *xrealloc(void *p, size_t len) {
+ if ((p = realloc(p, len)) == NULL)
+ die("realloc: %s\n", strerror(errno));
+
+ return p;
+}
+
+char *xstrdup(const char *s) {
+ char *p;
+
+ if ((p = strdup(s)) == NULL)
+ die("strdup: %s\n", strerror(errno));
+
+ return p;
+}
+
+size_t utf8decode(const char *c, Rune *u, size_t clen) {
+ size_t i, j, len, type;
+ Rune udecoded;
+
+ *u = UTF_INVALID;
+ if (!clen)
+ return 0;
+ udecoded = utf8decodebyte(c[0], &len);
+ if (!BETWEEN(len, 1, UTF_SIZ))
+ return 1;
+ for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
+ udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
+ if (type != 0)
+ return j;
+ }
+ if (j < len)
+ return 0;
+ *u = udecoded;
+ utf8validate(u, len);
+
+ return len;
+}
+
+Rune utf8decodebyte(char c, size_t *i) {
+ for (*i = 0; *i < LEN(utfmask); ++(*i))
+ if (((uchar)c & utfmask[*i]) == utfbyte[*i])
+ return (uchar)c & ~utfmask[*i];
+
+ return 0;
+}
+
+size_t utf8encode(Rune u, char *c) {
+ size_t len, i;
+
+ len = utf8validate(&u, 0);
+ if (len > UTF_SIZ)
+ return 0;
+
+ for (i = len - 1; i != 0; --i) {
+ c[i] = utf8encodebyte(u, 0);
+ u >>= 6;
+ }
+ c[0] = utf8encodebyte(u, len);
+
+ return len;
+}
+
+char utf8encodebyte(Rune u, size_t i) { return utfbyte[i] | (u & ~utfmask[i]); }
+
+size_t utf8validate(Rune *u, size_t i) {
+ if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
+ *u = UTF_INVALID;
+ for (i = 1; *u > utfmax[i]; ++i)
+ ;
+
+ return i;
+}
+
+char base64dec_getc(const char **src) {
+ while (**src && !isprint((unsigned char)**src))
+ (*src)++;
+ return **src ? *((*src)++) : '='; /* emulate padding if string ends */
+}
+
+char *base64dec(const char *src) {
+ size_t in_len = strlen(src);
+ char *result, *dst;
+ static const char base64_digits[256] = {
+ [43] = 62, 0, 0, 0, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0,
+ 0, 0, -1, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+ 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51};
+
+ if (in_len % 4)
+ in_len += 4 - (in_len % 4);
+ result = dst = xmalloc(in_len / 4 * 3 + 1);
+ while (*src) {
+ int a = base64_digits[(unsigned char)base64dec_getc(&src)];
+ int b = base64_digits[(unsigned char)base64dec_getc(&src)];
+ int c = base64_digits[(unsigned char)base64dec_getc(&src)];
+ int d = base64_digits[(unsigned char)base64dec_getc(&src)];
+
+ /* invalid input. 'a' can be -1, e.g. if src is "\n" (c-str) */
+ if (a == -1 || b == -1)
+ break;
+
+ *dst++ = (a << 2) | ((b & 0x30) >> 4);
+ if (c == -1)
+ break;
+ *dst++ = ((b & 0x0f) << 4) | ((c & 0x3c) >> 2);
+ if (d == -1)
+ break;
+ *dst++ = ((c & 0x03) << 6) | d;
+ }
+ *dst = '\0';
+ return result;
+}
+
+void selinit(void) {
+ sel.mode = SEL_IDLE;
+ sel.snap = 0;
+ sel.ob.x = -1;
+}
+
+int tlinelen(int y) {
+ int i = term.col;
+ Line line = TLINE(y);
+
+ if (line[i - 1].mode & ATTR_WRAP)
+ return i;
+
+ while (i > 0 && line[i - 1].u == ' ')
+ --i;
+
+ return i;
+}
+
+void selstart(int col, int row, int snap) {
+ selclear();
+ sel.mode = SEL_EMPTY;
+ sel.type = SEL_REGULAR;
+ sel.alt = IS_SET(MODE_ALTSCREEN);
+ sel.snap = snap;
+ sel.oe.x = sel.ob.x = col;
+ sel.oe.y = sel.ob.y = row;
+ selnormalize();
+
+ if (sel.snap != 0)
+ sel.mode = SEL_READY;
+ tsetdirt(sel.nb.y, sel.ne.y);
+}
+
+void selextend(int col, int row, int type, int done) {
+ int oldey, oldex, oldsby, oldsey, oldtype;
+
+ if (sel.mode == SEL_IDLE)
+ return;
+ if (done && sel.mode == SEL_EMPTY) {
+ selclear();
+ return;
+ }
+
+ oldey = sel.oe.y;
+ oldex = sel.oe.x;
+ oldsby = sel.nb.y;
+ oldsey = sel.ne.y;
+ oldtype = sel.type;
+
+ sel.oe.x = col;
+ sel.oe.y = row;
+ selnormalize();
+ sel.type = type;
+
+ if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type ||
+ sel.mode == SEL_EMPTY)
+ tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
+
+ sel.mode = done ? SEL_IDLE : SEL_READY;
+}
+
+void selnormalize(void) {
+ int i;
+
+ if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) {
+ sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
+ sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
+ } else {
+ sel.nb.x = MIN(sel.ob.x, sel.oe.x);
+ sel.ne.x = MAX(sel.ob.x, sel.oe.x);
+ }
+ sel.nb.y = MIN(sel.ob.y, sel.oe.y);
+ sel.ne.y = MAX(sel.ob.y, sel.oe.y);
+
+ selsnap(&sel.nb.x, &sel.nb.y, -1);
+ selsnap(&sel.ne.x, &sel.ne.y, +1);
+
+ /* expand selection over line breaks */
+ if (sel.type == SEL_RECTANGULAR)
+ return;
+ i = tlinelen(sel.nb.y);
+ if (i < sel.nb.x)
+ sel.nb.x = i;
+ if (tlinelen(sel.ne.y) <= sel.ne.x)
+ sel.ne.x = term.col - 1;
+}
+
+int selected(int x, int y) {
+ if (sel.mode == SEL_EMPTY || sel.ob.x == -1 ||
+ sel.alt != IS_SET(MODE_ALTSCREEN))
+ return 0;
+
+ if (sel.type == SEL_RECTANGULAR)
+ return BETWEEN(y, sel.nb.y, sel.ne.y) && BETWEEN(x, sel.nb.x, sel.ne.x);
+
+ return BETWEEN(y, sel.nb.y, sel.ne.y) && (y != sel.nb.y || x >= sel.nb.x) &&
+ (y != sel.ne.y || x <= sel.ne.x);
+}
+
+void selsnap(int *x, int *y, int direction) {
+ int newx, newy, xt, yt;
+ int delim, prevdelim;
+ const Glyph *gp, *prevgp;
+
+ switch (sel.snap) {
+ case SNAP_WORD:
+ /*
+ * Snap around if the word wraps around at the end or
+ * beginning of a line.
+ */
+ prevgp = &TLINE(*y)[*x];
+ prevdelim = ISDELIM(prevgp->u);
+ for (;;) {
+ newx = *x + direction;
+ newy = *y;
+ if (!BETWEEN(newx, 0, term.col - 1)) {
+ newy += direction;
+ newx = (newx + term.col) % term.col;
+ if (!BETWEEN(newy, 0, term.row - 1))
+ break;
+
+ if (direction > 0)
+ yt = *y, xt = *x;
+ else
+ yt = newy, xt = newx;
+ if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
+ break;
+ }
+
+ if (newx >= tlinelen(newy))
+ break;
+
+ gp = &TLINE(newy)[newx];
+ delim = ISDELIM(gp->u);
+ if (!(gp->mode & ATTR_WDUMMY) &&
+ (delim != prevdelim || (delim && gp->u != prevgp->u)))
+ break;
+
+ *x = newx;
+ *y = newy;
+ prevgp = gp;
+ prevdelim = delim;
+ }
+ break;
+ case SNAP_LINE:
+ /*
+ * Snap around if the the previous line or the current one
+ * has set ATTR_WRAP at its end. Then the whole next or
+ * previous line will be selected.
+ */
+ *x = (direction < 0) ? 0 : term.col - 1;
+ if (direction < 0) {
+ for (; *y > 0; *y += direction) {
+ if (!(TLINE(*y - 1)[term.col - 1].mode & ATTR_WRAP)) {
+ break;
+ }
+ }
+ } else if (direction > 0) {
+ for (; *y < term.row - 1; *y += direction) {
+ if (!(TLINE(*y)[term.col - 1].mode & ATTR_WRAP)) {
+ break;
+ }
+ }
+ }
+ break;
+ }
+}
+
+char *getsel(void) {
+ char *str, *ptr;
+ int y, bufsize, lastx, linelen;
+ const Glyph *gp, *last;
+
+ if (sel.ob.x == -1)
+ return NULL;
+
+ bufsize = (term.col + 1) * (sel.ne.y - sel.nb.y + 1) * UTF_SIZ;
+ ptr = str = xmalloc(bufsize);
+
+ /* append every set & selected glyph to the selection */
+ for (y = sel.nb.y; y <= sel.ne.y; y++) {
+ if ((linelen = tlinelen(y)) == 0) {
+ *ptr++ = '\n';
+ continue;
+ }
+
+ if (sel.type == SEL_RECTANGULAR) {
+ gp = &TLINE(y)[sel.nb.x];
+ lastx = sel.ne.x;
+ } else {
+ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
+ lastx = (sel.ne.y == y) ? sel.ne.x : term.col - 1;
+ }
+ last = &TLINE(y)[MIN(lastx, linelen - 1)];
+ while (last >= gp && last->u == ' ')
+ --last;
+
+ for (; gp <= last; ++gp) {
+ if (gp->mode & ATTR_WDUMMY)
+ continue;
+
+ ptr += utf8encode(gp->u, ptr);
+ }
+
+ /*
+ * Copy and pasting of line endings is inconsistent
+ * in the inconsistent terminal and GUI world.
+ * The best solution seems like to produce '\n' when
+ * something is copied from st and convert '\n' to
+ * '\r', when something to be pasted is received by
+ * st.
+ * FIXME: Fix the computer world.
+ */
+ if ((y < sel.ne.y || lastx >= linelen) &&
+ (!(last->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR))
+ *ptr++ = '\n';
+ }
+ *ptr = 0;
+ return str;
+}
+
+void selclear(void) {
+ if (sel.ob.x == -1)
+ return;
+ sel.mode = SEL_IDLE;
+ sel.ob.x = -1;
+ tsetdirt(sel.nb.y, sel.ne.y);
+}
+
+void die(const char *errstr, ...) {
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(1);
+}
+
+void execsh(char *cmd, char **args) {
+ char *sh, *prog, *arg;
+ const struct passwd *pw;
+
+ errno = 0;
+ if ((pw = getpwuid(getuid())) == NULL) {
+ if (errno)
+ die("getpwuid: %s\n", strerror(errno));
+ else
+ die("who are you?\n");
+ }
+
+ if ((sh = getenv("SHELL")) == NULL)
+ sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd;
+
+ if (args) {
+ prog = args[0];
+ arg = NULL;
+ } else if (scroll) {
+ prog = scroll;
+ arg = utmp ? utmp : sh;
+ } else if (utmp) {
+ prog = utmp;
+ arg = NULL;
+ } else {
+ prog = sh;
+ arg = NULL;
+ }
+ DEFAULT(args, ((char *[]){prog, arg, NULL}));
+
+ unsetenv("COLUMNS");
+ unsetenv("LINES");
+ unsetenv("TERMCAP");
+ setenv("LOGNAME", pw->pw_name, 1);
+ setenv("USER", pw->pw_name, 1);
+ setenv("SHELL", sh, 1);
+ setenv("HOME", pw->pw_dir, 1);
+ setenv("TERM", termname, 1);
+
+ signal(SIGCHLD, SIG_DFL);
+ signal(SIGHUP, SIG_DFL);
+ signal(SIGINT, SIG_DFL);
+ signal(SIGQUIT, SIG_DFL);
+ signal(SIGTERM, SIG_DFL);
+ signal(SIGALRM, SIG_DFL);
+
+ execvp(prog, args);
+ _exit(1);
+}
+
+void sigchld(int a) {
+ int stat;
+ pid_t p;
+
+ if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
+ die("waiting for pid %hd failed: %s\n", pid, strerror(errno));
+
+ if (pid != p)
+ return;
+
+ if (WIFEXITED(stat) && WEXITSTATUS(stat))
+ die("child exited with status %d\n", WEXITSTATUS(stat));
+ else if (WIFSIGNALED(stat))
+ die("child terminated due to signal %d\n", WTERMSIG(stat));
+ _exit(0);
+}
+
+void stty(char **args) {
+ char cmd[_POSIX_ARG_MAX], **p, *q, *s;
+ size_t n, siz;
+
+ if ((n = strlen(stty_args)) > sizeof(cmd) - 1)
+ die("incorrect stty parameters\n");
+ memcpy(cmd, stty_args, n);
+ q = cmd + n;
+ siz = sizeof(cmd) - n;
+ for (p = args; p && (s = *p); ++p) {
+ if ((n = strlen(s)) > siz - 1)
+ die("stty parameter length too long\n");
+ *q++ = ' ';
+ memcpy(q, s, n);
+ q += n;
+ siz -= n + 1;
+ }
+ *q = '\0';
+ if (system(cmd) != 0)
+ perror("Couldn't call stty");
+}
+
+int ttynew(const char *line, char *cmd, const char *out, char **args) {
+ int m, s;
+
+ if (out) {
+ term.mode |= MODE_PRINT;
+ iofd = (!strcmp(out, "-")) ? 1 : open(out, O_WRONLY | O_CREAT, 0666);
+ if (iofd < 0) {
+ fprintf(stderr, "Error opening %s:%s\n", out, strerror(errno));
+ }
+ }
+
+ if (line) {
+ if ((cmdfd = open(line, O_RDWR)) < 0)
+ die("open line '%s' failed: %s\n", line, strerror(errno));
+ dup2(cmdfd, 0);
+ stty(args);
+ return cmdfd;
+ }
+
+ /* seems to work fine on linux, openbsd and freebsd */
+ if (openpty(&m, &s, NULL, NULL, NULL) < 0)
+ die("openpty failed: %s\n", strerror(errno));
+
+ switch (pid = fork()) {
+ case -1:
+ die("fork failed: %s\n", strerror(errno));
+ break;
+ case 0:
+ close(iofd);
+ close(m);
+ setsid(); /* create a new process group */
+ dup2(s, 0);
+ dup2(s, 1);
+ dup2(s, 2);
+ if (ioctl(s, TIOCSCTTY, NULL) < 0)
+ die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
+ if (s > 2)
+ close(s);
+#ifdef __OpenBSD__
+ if (pledge("stdio getpw proc exec", NULL) == -1)
+ die("pledge\n");
+#endif
+ execsh(cmd, args);
+ break;
+ default:
+#ifdef __OpenBSD__
+ if (pledge("stdio rpath tty proc", NULL) == -1)
+ die("pledge\n");
+#endif
+ close(s);
+ cmdfd = m;
+ signal(SIGCHLD, sigchld);
+ break;
+ }
+ return cmdfd;
+}
+
+size_t ttyread(void) {
+ static char buf[BUFSIZ];
+ static int buflen = 0;
+ int ret, written;
+
+ /* append read bytes to unprocessed bytes */
+ ret = read(cmdfd, buf + buflen, LEN(buf) - buflen);
+
+ switch (ret) {
+ case 0:
+ exit(0);
+ case -1:
+ die("couldn't read from shell: %s\n", strerror(errno));
+ default:
+ buflen += ret;
+ written = twrite(buf, buflen, 0);
+ buflen -= written;
+ /* keep any incomplete UTF-8 byte sequence for the next call */
+ if (buflen > 0)
+ memmove(buf, buf + written, buflen);
+ return ret;
+ }
+}
+
+void ttywrite(const char *s, size_t n, int may_echo) {
+ const char *next;
+
+ if (may_echo && IS_SET(MODE_ECHO))
+ twrite(s, n, 1);
+
+ if (!IS_SET(MODE_CRLF)) {
+ ttywriteraw(s, n);
+ return;
+ }
+
+ /* This is similar to how the kernel handles ONLCR for ttys */
+ while (n > 0) {
+ if (*s == '\r') {
+ next = s + 1;
+ ttywriteraw("\r\n", 2);
+ } else {
+ next = memchr(s, '\r', n);
+ DEFAULT(next, s + n);
+ ttywriteraw(s, next - s);
+ }
+ n -= next - s;
+ s = next;
+ }
+}
+
+void ttywriteraw(const char *s, size_t n) {
+ fd_set wfd, rfd;
+ ssize_t r;
+ size_t lim = 256;
+
+ /*
+ * Remember that we are using a pty, which might be a modem line.
+ * Writing too much will clog the line. That's why we are doing this
+ * dance.
+ * FIXME: Migrate the world to Plan 9.
+ */
+ while (n > 0) {
+ FD_ZERO(&wfd);
+ FD_ZERO(&rfd);
+ FD_SET(cmdfd, &wfd);
+ FD_SET(cmdfd, &rfd);
+
+ /* Check if we can write. */
+ if (pselect(cmdfd + 1, &rfd, &wfd, NULL, NULL, NULL) < 0) {
+ if (errno == EINTR)
+ continue;
+ die("select failed: %s\n", strerror(errno));
+ }
+ if (FD_ISSET(cmdfd, &wfd)) {
+ /*
+ * Only write the bytes written by ttywrite() or the
+ * default of 256. This seems to be a reasonable value
+ * for a serial line. Bigger values might clog the I/O.
+ */
+ if ((r = write(cmdfd, s, (n < lim) ? n : lim)) < 0)
+ goto write_error;
+ if (r < n) {
+ /*
+ * We weren't able to write out everything.
+ * This means the buffer is getting full
+ * again. Empty it.
+ */
+ if (n < lim)
+ lim = ttyread();
+ n -= r;
+ s += r;
+ } else {
+ /* All bytes have been written. */
+ break;
+ }
+ }
+ if (FD_ISSET(cmdfd, &rfd))
+ lim = ttyread();
+ }
+ return;
+
+write_error:
+ die("write error on tty: %s\n", strerror(errno));
+}
+
+void ttyresize(int tw, int th) {
+ struct winsize w;
+
+ w.ws_row = term.row;
+ w.ws_col = term.col;
+ w.ws_xpixel = tw;
+ w.ws_ypixel = th;
+ if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
+ fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
+}
+
+void ttyhangup(void) {
+ /* Send SIGHUP to shell */
+ kill(pid, SIGHUP);
+}
+
+int tattrset(int attr) {
+ int i, j;
+ int y = TLINEOFFSET(0);
+
+ for (i = 0; i < term.row - 1; i++) {
+ Line line = TSCREEN.buffer[y];
+ for (j = 0; j < term.col - 1; j++) {
+ if (line[j].mode & attr)
+ return 1;
+ }
+ y = (y + 1) % TSCREEN.size;
+ }
+
+ return 0;
+}
+
+void tsetdirt(int top, int bot) {
+ int i;
+
+ LIMIT(top, 0, term.row - 1);
+ LIMIT(bot, 0, term.row - 1);
+
+ for (i = top; i <= bot; i++)
+ term.dirty[i] = 1;
+}
+
+void tsetdirtattr(int attr) {
+ int i, j;
+ int y = TLINEOFFSET(0);
+
+ for (i = 0; i < term.row - 1; i++) {
+ Line line = TSCREEN.buffer[y];
+ for (j = 0; j < term.col - 1; j++) {
+ if (line[j].mode & attr) {
+ tsetdirt(i, i);
+ break;
+ }
+ }
+ y = (y + 1) % TSCREEN.size;
+ }
+}
+
+void tfulldirt(void) { tsetdirt(0, term.row - 1); }
+
+void tcursor(int mode) {
+ if (mode == CURSOR_SAVE) {
+ TSCREEN.sc = term.c;
+ } else if (mode == CURSOR_LOAD) {
+ term.c = TSCREEN.sc;
+ tmoveto(term.c.x, term.c.y);
+ }
+}
+
+void treset(void) {
+ int i, j;
+ Glyph g = (Glyph){.fg = defaultfg, .bg = defaultbg};
+
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ for (i = tabspaces; i < term.col; i += tabspaces)
+ term.tabs[i] = 1;
+ term.top = 0;
+ term.bot = term.row - 1;
+ term.mode = MODE_WRAP | MODE_UTF8;
+ memset(term.trantbl, CS_USA, sizeof(term.trantbl));
+ term.charset = 0;
+
+ for (i = 0; i < 2; i++) {
+ term.screen[i].sc = (TCursor){{.fg = defaultfg, .bg = defaultbg}};
+ term.screen[i].cur = 0;
+ term.screen[i].off = 0;
+ for (j = 0; j < term.row; ++j) {
+ if (term.col != term.linelen)
+ term.screen[i].buffer[j] =
+ xrealloc(term.screen[i].buffer[j], term.col * sizeof(Glyph));
+ clearline(term.screen[i].buffer[j], g, 0, term.col);
+ }
+ for (j = term.row; j < term.screen[i].size; ++j) {
+ free(term.screen[i].buffer[j]);
+ term.screen[i].buffer[j] = NULL;
+ }
+ }
+ tcursor(CURSOR_LOAD);
+ term.linelen = term.col;
+ tfulldirt();
+}
+
+void tnew(int col, int row) {
+ int i;
+ term = (Term){0};
+ term.screen[0].buffer = xmalloc(HISTSIZE * sizeof(Line));
+ term.screen[0].size = HISTSIZE;
+ term.screen[1].buffer = NULL;
+ for (i = 0; i < HISTSIZE; ++i)
+ term.screen[0].buffer[i] = NULL;
+
+ tresize(col, row);
+ treset();
+}
+
+void tswapscreen(void) {
+ term.mode ^= MODE_ALTSCREEN;
+ tfulldirt();
+}
+
+void kscrollup(const Arg *a) {
+ int n = a->i;
+
+ if (IS_SET(MODE_ALTSCREEN))
+ return;
+
+ if (n < 0)
+ n = (-n) * term.row;
+ if (n > TSCREEN.size - term.row - TSCREEN.off)
+ n = TSCREEN.size - term.row - TSCREEN.off;
+ while (!TLINE(-n))
+ --n;
+ TSCREEN.off += n;
+ selscroll(0, n);
+ tfulldirt();
+}
+
+void kscrolldown(const Arg *a) {
+
+ int n = a->i;
+
+ if (IS_SET(MODE_ALTSCREEN))
+ return;
+
+ if (n < 0)
+ n = (-n) * term.row;
+ if (n > TSCREEN.off)
+ n = TSCREEN.off;
+ TSCREEN.off -= n;
+ selscroll(0, -n);
+ tfulldirt();
+}
+
+void tscrolldown(int orig, int n) {
+ int i;
+ Line temp;
+
+ LIMIT(n, 0, term.bot - orig + 1);
+
+ /* Ensure that lines are allocated */
+ for (i = -n; i < 0; i++) {
+ TLINE(i) = ensureline(TLINE(i));
+ }
+
+ /* Shift non-scrolling areas in ring buffer */
+ for (i = term.bot + 1; i < term.row; i++) {
+ temp = TLINE(i);
+ TLINE(i) = TLINE(i - n);
+ TLINE(i - n) = temp;
+ }
+ for (i = 0; i < orig; i++) {
+ temp = TLINE(i);
+ TLINE(i) = TLINE(i - n);
+ TLINE(i - n) = temp;
+ }
+
+ /* Scroll buffer */
+ TSCREEN.cur = (TSCREEN.cur + TSCREEN.size - n) % TSCREEN.size;
+ /* Clear lines that have entered the view */
+ tclearregion(0, orig, term.linelen - 1, orig + n - 1);
+ /* Redraw portion of the screen that has scrolled */
+ tsetdirt(orig + n - 1, term.bot);
+ selscroll(orig, n);
+}
+
+void tscrollup(int orig, int n) {
+ int i;
+ Line temp;
+
+ LIMIT(n, 0, term.bot - orig + 1);
+
+ /* Ensure that lines are allocated */
+ for (i = term.row; i < term.row + n; i++) {
+ TLINE(i) = ensureline(TLINE(i));
+ }
+
+ /* Shift non-scrolling areas in ring buffer */
+ for (i = orig - 1; i >= 0; i--) {
+ temp = TLINE(i);
+ TLINE(i) = TLINE(i + n);
+ TLINE(i + n) = temp;
+ }
+ for (i = term.row - 1; i > term.bot; i--) {
+ temp = TLINE(i);
+ TLINE(i) = TLINE(i + n);
+ TLINE(i + n) = temp;
+ }
+
+ /* Scroll buffer */
+ TSCREEN.cur = (TSCREEN.cur + n) % TSCREEN.size;
+ /* Clear lines that have entered the view */
+ tclearregion(0, term.bot - n + 1, term.linelen - 1, term.bot);
+ /* Redraw portion of the screen that has scrolled */
+ tsetdirt(orig, term.bot - n + 1);
+ selscroll(orig, -n);
+}
+
+void selscroll(int orig, int n) {
+ if (sel.ob.x == -1 || sel.alt != IS_SET(MODE_ALTSCREEN))
+ return;
+
+ if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) {
+ selclear();
+ } else if (BETWEEN(sel.nb.y, orig, term.bot)) {
+ sel.ob.y += n;
+ sel.oe.y += n;
+ if (sel.ob.y < term.top || sel.ob.y > term.bot || sel.oe.y < term.top ||
+ sel.oe.y > term.bot) {
+ selclear();
+ } else {
+ selnormalize();
+ }
+ }
+}
+
+void tnewline(int first_col) {
+ int y = term.c.y;
+
+ if (y == term.bot) {
+ tscrollup(term.top, 1);
+ } else {
+ y++;
+ }
+ tmoveto(first_col ? 0 : term.c.x, y);
+}
+
+void csiparse(void) {
+ char *p = csiescseq.buf, *np;
+ long int v;
+ int sep = ';'; /* colon or semi-colon, but not both */
+
+ csiescseq.narg = 0;
+ if (*p == '?') {
+ csiescseq.priv = 1;
+ p++;
+ }
+
+ csiescseq.buf[csiescseq.len] = '\0';
+ while (p < csiescseq.buf + csiescseq.len) {
+ np = NULL;
+ v = strtol(p, &np, 10);
+ if (np == p)
+ v = 0;
+ if (v == LONG_MAX || v == LONG_MIN)
+ v = -1;
+ csiescseq.arg[csiescseq.narg++] = v;
+ p = np;
+ if (sep == ';' && *p == ':')
+ sep = ':'; /* allow override to colon once */
+ if (*p != sep || csiescseq.narg == ESC_ARG_SIZ)
+ break;
+ p++;
+ }
+ csiescseq.mode[0] = *p++;
+ csiescseq.mode[1] = (p < csiescseq.buf + csiescseq.len) ? *p : '\0';
+}
+
+/* for absolute user moves, when decom is set */
+void tmoveato(int x, int y) {
+ tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top : 0));
+}
+
+void tmoveto(int x, int y) {
+ int miny, maxy;
+
+ if (term.c.state & CURSOR_ORIGIN) {
+ miny = term.top;
+ maxy = term.bot;
+ } else {
+ miny = 0;
+ maxy = term.row - 1;
+ }
+ term.c.state &= ~CURSOR_WRAPNEXT;
+ term.c.x = LIMIT(x, 0, term.col - 1);
+ term.c.y = LIMIT(y, miny, maxy);
+}
+
+void tsetchar(Rune u, const Glyph *attr, int x, int y) {
+ static const char *vt100_0[62] = {
+ /* 0x41 - 0x7e */
+ "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
+ 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
+ "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
+ "␤", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
+ "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
+ "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
+ };
+ Line line = TLINE(y);
+
+ /*
+ * The table is proudly stolen from rxvt.
+ */
+ if (term.trantbl[term.charset] == CS_GRAPHIC0 && BETWEEN(u, 0x41, 0x7e) &&
+ vt100_0[u - 0x41])
+ utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ);
+
+ if (line[x].mode & ATTR_WIDE) {
+ if (x + 1 < term.col) {
+ line[x + 1].u = ' ';
+ line[x + 1].mode &= ~ATTR_WDUMMY;
+ }
+ } else if (line[x].mode & ATTR_WDUMMY) {
+ line[x - 1].u = ' ';
+ line[x - 1].mode &= ~ATTR_WIDE;
+ }
+
+ term.dirty[y] = 1;
+ line[x] = *attr;
+ line[x].u = u;
+}
+
+void tclearregion(int x1, int y1, int x2, int y2) {
+ int x, y, L, S, temp;
+ Glyph *gp;
+
+ if (x1 > x2)
+ temp = x1, x1 = x2, x2 = temp;
+ if (y1 > y2)
+ temp = y1, y1 = y2, y2 = temp;
+
+ LIMIT(x1, 0, term.linelen - 1);
+ LIMIT(x2, 0, term.linelen - 1);
+ LIMIT(y1, 0, term.row - 1);
+ LIMIT(y2, 0, term.row - 1);
+
+ L = TLINEOFFSET(y1);
+ for (y = y1; y <= y2; y++) {
+ term.dirty[y] = 1;
+ for (x = x1; x <= x2; x++) {
+ gp = &TSCREEN.buffer[L][x];
+ if (selected(x, y))
+ selclear();
+ gp->fg = term.c.attr.fg;
+ gp->bg = term.c.attr.bg;
+ gp->mode = 0;
+ gp->u = ' ';
+ }
+ L = (L + 1) % TSCREEN.size;
+ }
+}
+
+void tdeletechar(int n) {
+ int dst, src, size;
+ Glyph *line;
+
+ LIMIT(n, 0, term.col - term.c.x);
+
+ dst = term.c.x;
+ src = term.c.x + n;
+ size = term.col - src;
+ line = TLINE(term.c.y);
+
+ memmove(&line[dst], &line[src], size * sizeof(Glyph));
+ tclearregion(term.col - n, term.c.y, term.col - 1, term.c.y);
+}
+
+void tinsertblank(int n) {
+ int dst, src, size;
+ Glyph *line;
+
+ LIMIT(n, 0, term.col - term.c.x);
+
+ dst = term.c.x + n;
+ src = term.c.x;
+ size = term.col - dst;
+ line = TLINE(term.c.y);
+
+ memmove(&line[dst], &line[src], size * sizeof(Glyph));
+ tclearregion(src, term.c.y, dst - 1, term.c.y);
+}
+
+void tinsertblankline(int n) {
+ if (BETWEEN(term.c.y, term.top, term.bot))
+ tscrolldown(term.c.y, n);
+}
+
+void tdeleteline(int n) {
+ if (BETWEEN(term.c.y, term.top, term.bot))
+ tscrollup(term.c.y, n);
+}
+
+int32_t tdefcolor(const int *attr, int *npar, int l) {
+ int32_t idx = -1;
+ uint r, g, b;
+
+ switch (attr[*npar + 1]) {
+ case 2: /* direct color in RGB space */
+ if (*npar + 4 >= l) {
+ fprintf(stderr, "erresc(38): Incorrect number of parameters (%d)\n",
+ *npar);
+ break;
+ }
+ r = attr[*npar + 2];
+ g = attr[*npar + 3];
+ b = attr[*npar + 4];
+ *npar += 4;
+ if (!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
+ fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n", r, g, b);
+ else
+ idx = TRUECOLOR(r, g, b);
+ break;
+ case 5: /* indexed color */
+ if (*npar + 2 >= l) {
+ fprintf(stderr, "erresc(38): Incorrect number of parameters (%d)\n",
+ *npar);
+ break;
+ }
+ *npar += 2;
+ if (!BETWEEN(attr[*npar], 0, 255))
+ fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
+ else
+ idx = attr[*npar];
+ break;
+ case 0: /* implemented defined (only foreground) */
+ case 1: /* transparent */
+ case 3: /* direct color in CMY space */
+ case 4: /* direct color in CMYK space */
+ default:
+ fprintf(stderr, "erresc(38): gfx attr %d unknown\n", attr[*npar]);
+ break;
+ }
+
+ return idx;
+}
+
+void tsetattr(const int *attr, int l) {
+ int i;
+ int32_t idx;
+
+ for (i = 0; i < l; i++) {
+ switch (attr[i]) {
+ case 0:
+ term.c.attr.mode &=
+ ~(ATTR_BOLD | ATTR_FAINT | ATTR_ITALIC | ATTR_UNDERLINE | ATTR_BLINK |
+ ATTR_REVERSE | ATTR_INVISIBLE | ATTR_STRUCK);
+ term.c.attr.fg = defaultfg;
+ term.c.attr.bg = defaultbg;
+ break;
+ case 1:
+ term.c.attr.mode |= ATTR_BOLD;
+ break;
+ case 2:
+ term.c.attr.mode |= ATTR_FAINT;
+ break;
+ case 3:
+ term.c.attr.mode |= ATTR_ITALIC;
+ break;
+ case 4:
+ term.c.attr.mode |= ATTR_UNDERLINE;
+ break;
+ case 5: /* slow blink */
+ /* FALLTHROUGH */
+ case 6: /* rapid blink */
+ term.c.attr.mode |= ATTR_BLINK;
+ break;
+ case 7:
+ term.c.attr.mode |= ATTR_REVERSE;
+ break;
+ case 8:
+ term.c.attr.mode |= ATTR_INVISIBLE;
+ break;
+ case 9:
+ term.c.attr.mode |= ATTR_STRUCK;
+ break;
+ case 22:
+ term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
+ break;
+ case 23:
+ term.c.attr.mode &= ~ATTR_ITALIC;
+ break;
+ case 24:
+ term.c.attr.mode &= ~ATTR_UNDERLINE;
+ break;
+ case 25:
+ term.c.attr.mode &= ~ATTR_BLINK;
+ break;
+ case 27:
+ term.c.attr.mode &= ~ATTR_REVERSE;
+ break;
+ case 28:
+ term.c.attr.mode &= ~ATTR_INVISIBLE;
+ break;
+ case 29:
+ term.c.attr.mode &= ~ATTR_STRUCK;
+ break;
+ case 38:
+ if ((idx = tdefcolor(attr, &i, l)) >= 0)
+ term.c.attr.fg = idx;
+ break;
+ case 39:
+ term.c.attr.fg = defaultfg;
+ break;
+ case 48:
+ if ((idx = tdefcolor(attr, &i, l)) >= 0)
+ term.c.attr.bg = idx;
+ break;
+ case 49:
+ term.c.attr.bg = defaultbg;
+ break;
+ default:
+ if (BETWEEN(attr[i], 30, 37)) {
+ term.c.attr.fg = attr[i] - 30;
+ } else if (BETWEEN(attr[i], 40, 47)) {
+ term.c.attr.bg = attr[i] - 40;
+ } else if (BETWEEN(attr[i], 90, 97)) {
+ term.c.attr.fg = attr[i] - 90 + 8;
+ } else if (BETWEEN(attr[i], 100, 107)) {
+ term.c.attr.bg = attr[i] - 100 + 8;
+ } else {
+ fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]);
+ csidump();
+ }
+ break;
+ }
+ }
+}
+
+void tsetscroll(int t, int b) {
+ int temp;
+
+ LIMIT(t, 0, term.row - 1);
+ LIMIT(b, 0, term.row - 1);
+ if (t > b) {
+ temp = t;
+ t = b;
+ b = temp;
+ }
+ term.top = t;
+ term.bot = b;
+}
+
+void tsetmode(int priv, int set, const int *args, int narg) {
+ int alt;
+ const int *lim;
+
+ for (lim = args + narg; args < lim; ++args) {
+ if (priv) {
+ switch (*args) {
+ case 1: /* DECCKM -- Cursor key */
+ xsetmode(set, MODE_APPCURSOR);
+ break;
+ case 5: /* DECSCNM -- Reverse video */
+ xsetmode(set, MODE_REVERSE);
+ break;
+ case 6: /* DECOM -- Origin */
+ MODBIT(term.c.state, set, CURSOR_ORIGIN);
+ tmoveato(0, 0);
+ break;
+ case 7: /* DECAWM -- Auto wrap */
+ MODBIT(term.mode, set, MODE_WRAP);
+ break;
+ case 0: /* Error (IGNORED) */
+ case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
+ case 3: /* DECCOLM -- Column (IGNORED) */
+ case 4: /* DECSCLM -- Scroll (IGNORED) */
+ case 8: /* DECARM -- Auto repeat (IGNORED) */
+ case 18: /* DECPFF -- Printer feed (IGNORED) */
+ case 19: /* DECPEX -- Printer extent (IGNORED) */
+ case 42: /* DECNRCM -- National characters (IGNORED) */
+ case 12: /* att610 -- Start blinking cursor (IGNORED) */
+ break;
+ case 25: /* DECTCEM -- Text Cursor Enable Mode */
+ xsetmode(!set, MODE_HIDE);
+ break;
+ case 9: /* X10 mouse compatibility mode */
+ xsetpointermotion(0);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEX10);
+ break;
+ case 1000: /* 1000: report button press */
+ xsetpointermotion(0);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEBTN);
+ break;
+ case 1002: /* 1002: report motion on button press */
+ xsetpointermotion(0);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEMOTION);
+ break;
+ case 1003: /* 1003: enable all mouse motions */
+ xsetpointermotion(set);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEMANY);
+ break;
+ case 1004: /* 1004: send focus events to tty */
+ xsetmode(set, MODE_FOCUS);
+ break;
+ case 1006: /* 1006: extended reporting mode */
+ xsetmode(set, MODE_MOUSESGR);
+ break;
+ case 1034:
+ xsetmode(set, MODE_8BIT);
+ break;
+ case 1049: /* swap screen & set/restore cursor as xterm */
+ if (!allowaltscreen)
+ break;
+ tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+ /* FALLTHROUGH */
+ case 47: /* swap screen */
+ case 1047:
+ if (!allowaltscreen)
+ break;
+ alt = IS_SET(MODE_ALTSCREEN);
+ if (alt) {
+ tclearregion(0, 0, term.col - 1, term.row - 1);
+ }
+ if (set ^ alt) /* set is always 1 or 0 */
+ tswapscreen();
+ if (*args != 1049)
+ break;
+ /* FALLTHROUGH */
+ case 1048:
+ tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+ break;
+ case 2004: /* 2004: bracketed paste mode */
+ xsetmode(set, MODE_BRCKTPASTE);
+ break;
+ /* Not implemented mouse modes. See comments there. */
+ case 1001: /* mouse highlight mode; can hang the
+ terminal by design when implemented. */
+ case 1005: /* UTF-8 mouse mode; will confuse
+ applications not supporting UTF-8
+ and luit. */
+ case 1015: /* urxvt mangled mouse mode; incompatible
+ and can be mistaken for other control
+ codes. */
+ break;
+ default:
+ fprintf(stderr, "erresc: unknown private set/reset mode %d\n", *args);
+ break;
+ }
+ } else {
+ switch (*args) {
+ case 0: /* Error (IGNORED) */
+ break;
+ case 2:
+ xsetmode(set, MODE_KBDLOCK);
+ break;
+ case 4: /* IRM -- Insertion-replacement */
+ MODBIT(term.mode, set, MODE_INSERT);
+ break;
+ case 12: /* SRM -- Send/Receive */
+ MODBIT(term.mode, !set, MODE_ECHO);
+ break;
+ case 20: /* LNM -- Linefeed/new line */
+ MODBIT(term.mode, set, MODE_CRLF);
+ break;
+ default:
+ fprintf(stderr, "erresc: unknown set/reset mode %d\n", *args);
+ break;
+ }
+ }
+ }
+}
+
+void csihandle(void) {
+ char buf[40];
+ int len;
+
+ switch (csiescseq.mode[0]) {
+ default:
+ unknown:
+ fprintf(stderr, "erresc: unknown csi ");
+ csidump();
+ /* die(""); */
+ break;
+ case '@': /* ICH -- Insert <n> blank char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblank(csiescseq.arg[0]);
+ break;
+ case 'A': /* CUU -- Cursor <n> Up */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y - csiescseq.arg[0]);
+ break;
+ case 'B': /* CUD -- Cursor <n> Down */
+ case 'e': /* VPR --Cursor <n> Down */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y + csiescseq.arg[0]);
+ break;
+ case 'i': /* MC -- Media Copy */
+ switch (csiescseq.arg[0]) {
+ case 0:
+ tdump();
+ break;
+ case 1:
+ tdumpline(term.c.y);
+ break;
+ case 2:
+ tdumpsel();
+ break;
+ case 4:
+ term.mode &= ~MODE_PRINT;
+ break;
+ case 5:
+ term.mode |= MODE_PRINT;
+ break;
+ }
+ break;
+ case 'c': /* DA -- Device Attributes */
+ if (csiescseq.arg[0] == 0)
+ ttywrite(vtiden, strlen(vtiden), 0);
+ break;
+ case 'b': /* REP -- if last char is printable print it <n> more times */
+ LIMIT(csiescseq.arg[0], 1, 65535);
+ if (term.lastc)
+ while (csiescseq.arg[0]-- > 0)
+ tputc(term.lastc);
+ break;
+ case 'C': /* CUF -- Cursor <n> Forward */
+ case 'a': /* HPR -- Cursor <n> Forward */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x + csiescseq.arg[0], term.c.y);
+ break;
+ case 'D': /* CUB -- Cursor <n> Backward */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x - csiescseq.arg[0], term.c.y);
+ break;
+ case 'E': /* CNL -- Cursor <n> Down and first col */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y + csiescseq.arg[0]);
+ break;
+ case 'F': /* CPL -- Cursor <n> Up and first col */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y - csiescseq.arg[0]);
+ break;
+ case 'g': /* TBC -- Tabulation clear */
+ switch (csiescseq.arg[0]) {
+ case 0: /* clear current tab stop */
+ term.tabs[term.c.x] = 0;
+ break;
+ case 3: /* clear all the tabs */
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ case 'G': /* CHA -- Move to <col> */
+ case '`': /* HPA */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(csiescseq.arg[0] - 1, term.c.y);
+ break;
+ case 'H': /* CUP -- Move to <row> <col> */
+ case 'f': /* HVP */
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], 1);
+ tmoveato(csiescseq.arg[1] - 1, csiescseq.arg[0] - 1);
+ break;
+ case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ tputtab(csiescseq.arg[0]);
+ break;
+ case 'J': /* ED -- Clear screen */
+ switch (csiescseq.arg[0]) {
+ case 0: /* below */
+ tclearregion(term.c.x, term.c.y, term.col - 1, term.c.y);
+ if (term.c.y < term.row - 1) {
+ tclearregion(0, term.c.y + 1, term.col - 1, term.row - 1);
+ }
+ break;
+ case 1: /* above */
+ if (term.c.y > 1)
+ tclearregion(0, 0, term.col - 1, term.c.y - 1);
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
+ break;
+ case 2: /* all */
+ tclearregion(0, 0, term.col - 1, term.row - 1);
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ case 'K': /* EL -- Clear line */
+ switch (csiescseq.arg[0]) {
+ case 0: /* right */
+ tclearregion(term.c.x, term.c.y, term.col - 1, term.c.y);
+ break;
+ case 1: /* left */
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
+ break;
+ case 2: /* all */
+ tclearregion(0, term.c.y, term.col - 1, term.c.y);
+ break;
+ }
+ break;
+ case 'S': /* SU -- Scroll <n> line up */
+ if (csiescseq.priv)
+ break;
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrollup(term.top, csiescseq.arg[0]);
+ break;
+ case 'T': /* SD -- Scroll <n> line down */
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrolldown(term.top, csiescseq.arg[0]);
+ break;
+ case 'L': /* IL -- Insert <n> blank lines */
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblankline(csiescseq.arg[0]);
+ break;
+ case 'l': /* RM -- Reset Mode */
+ tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
+ break;
+ case 'M': /* DL -- Delete <n> lines */
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeleteline(csiescseq.arg[0]);
+ break;
+ case 'X': /* ECH -- Erase <n> char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0] - 1, term.c.y);
+ break;
+ case 'P': /* DCH -- Delete <n> char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeletechar(csiescseq.arg[0]);
+ break;
+ case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ tputtab(-csiescseq.arg[0]);
+ break;
+ case 'd': /* VPA -- Move to <row> */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveato(term.c.x, csiescseq.arg[0] - 1);
+ break;
+ case 'h': /* SM -- Set terminal mode */
+ tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
+ break;
+ case 'm': /* SGR -- Terminal attribute (color) */
+ tsetattr(csiescseq.arg, csiescseq.narg);
+ break;
+ case 'n': /* DSR -- Device Status Report */
+ switch (csiescseq.arg[0]) {
+ case 5: /* Status Report "OK" `0n` */
+ ttywrite("\033[0n", sizeof("\033[0n") - 1, 0);
+ break;
+ case 6: /* Report Cursor Position (CPR) "<row>;<column>R" */
+ len =
+ snprintf(buf, sizeof(buf), "\033[%i;%iR", term.c.y + 1, term.c.x + 1);
+ ttywrite(buf, len, 0);
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ case 'r': /* DECSTBM -- Set Scrolling Region */
+ if (csiescseq.priv) {
+ goto unknown;
+ } else {
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], term.row);
+ tsetscroll(csiescseq.arg[0] - 1, csiescseq.arg[1] - 1);
+ tmoveato(0, 0);
+ }
+ break;
+ case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
+ tcursor(CURSOR_SAVE);
+ break;
+ case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
+ tcursor(CURSOR_LOAD);
+ break;
+ case ' ':
+ switch (csiescseq.mode[1]) {
+ case 'q': /* DECSCUSR -- Set Cursor Style */
+ if (xsetcursor(csiescseq.arg[0]))
+ goto unknown;
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ }
+}
+
+void csidump(void) {
+ size_t i;
+ uint c;
+
+ fprintf(stderr, "ESC[");
+ for (i = 0; i < csiescseq.len; i++) {
+ c = csiescseq.buf[i] & 0xff;
+ if (isprint(c)) {
+ putc(c, stderr);
+ } else if (c == '\n') {
+ fprintf(stderr, "(\\n)");
+ } else if (c == '\r') {
+ fprintf(stderr, "(\\r)");
+ } else if (c == 0x1b) {
+ fprintf(stderr, "(\\e)");
+ } else {
+ fprintf(stderr, "(%02x)", c);
+ }
+ }
+ putc('\n', stderr);
+}
+
+void csireset(void) { memset(&csiescseq, 0, sizeof(csiescseq)); }
+
+void osc_color_response(int num, int index, int is_osc4) {
+ int n;
+ char buf[32];
+ unsigned char r, g, b;
+
+ if (xgetcolor(is_osc4 ? num : index, &r, &g, &b)) {
+ fprintf(stderr, "erresc: failed to fetch %s color %d\n",
+ is_osc4 ? "osc4" : "osc", is_osc4 ? num : index);
+ return;
+ }
+
+ n = snprintf(buf, sizeof buf, "\033]%s%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
+ is_osc4 ? "4;" : "", num, r, r, g, g, b, b);
+ if (n < 0 || n >= sizeof(buf)) {
+ fprintf(stderr, "error: %s while printing %s response\n",
+ n < 0 ? "snprintf failed" : "truncation occurred",
+ is_osc4 ? "osc4" : "osc");
+ } else {
+ ttywrite(buf, n, 1);
+ }
+}
+
+void strhandle(void) {
+ char *p = NULL, *dec;
+ int j, narg, par;
+ const struct {
+ int idx;
+ char *str;
+ } osc_table[] = {{defaultfg, "foreground"},
+ {defaultbg, "background"},
+ {defaultcs, "cursor"}};
+
+ term.esc &= ~(ESC_STR_END | ESC_STR);
+ strparse();
+ par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0;
+
+ switch (strescseq.type) {
+ case ']': /* OSC -- Operating System Command */
+ switch (par) {
+ case 0:
+ if (narg > 1) {
+ xsettitle(strescseq.args[1]);
+ xseticontitle(strescseq.args[1]);
+ }
+ return;
+ case 1:
+ if (narg > 1)
+ xseticontitle(strescseq.args[1]);
+ return;
+ case 2:
+ if (narg > 1)
+ xsettitle(strescseq.args[1]);
+ return;
+ case 52:
+ if (narg > 2 && allowwindowops) {
+ dec = base64dec(strescseq.args[2]);
+ if (dec) {
+ xsetsel(dec);
+ xclipcopy();
+ } else {
+ fprintf(stderr, "erresc: invalid base64\n");
+ }
+ }
+ return;
+ case 10:
+ case 11:
+ case 12:
+ if (narg < 2)
+ break;
+ p = strescseq.args[1];
+ if ((j = par - 10) < 0 || j >= LEN(osc_table))
+ break; /* shouldn't be possible */
+
+ if (!strcmp(p, "?")) {
+ osc_color_response(par, osc_table[j].idx, 0);
+ } else if (xsetcolorname(osc_table[j].idx, p)) {
+ fprintf(stderr, "erresc: invalid %s color: %s\n", osc_table[j].str, p);
+ } else {
+ tfulldirt();
+ }
+ return;
+ case 4: /* color set */
+ if (narg < 3)
+ break;
+ p = strescseq.args[2];
+ /* FALLTHROUGH */
+ case 104: /* color reset */
+ j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
+
+ if (p && !strcmp(p, "?")) {
+ osc_color_response(j, 0, 1);
+ } else if (xsetcolorname(j, p)) {
+ if (par == 104 && narg <= 1) {
+ xloadcols();
+ return; /* color reset without parameter */
+ }
+ fprintf(stderr, "erresc: invalid color j=%d, p=%s\n", j,
+ p ? p : "(null)");
+ } else {
+ /*
+ * TODO if defaultbg color is changed, borders
+ * are dirty
+ */
+ tfulldirt();
+ }
+ return;
+ }
+ break;
+ case 'k': /* old title set compatibility */
+ xsettitle(strescseq.args[0]);
+ return;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ return;
+ }
+
+ fprintf(stderr, "erresc: unknown str ");
+ strdump();
+}
+
+void strparse(void) {
+ int c;
+ char *p = strescseq.buf;
+
+ strescseq.narg = 0;
+ strescseq.buf[strescseq.len] = '\0';
+
+ if (*p == '\0')
+ return;
+
+ while (strescseq.narg < STR_ARG_SIZ) {
+ strescseq.args[strescseq.narg++] = p;
+ while ((c = *p) != ';' && c != '\0')
+ ++p;
+ if (c == '\0')
+ return;
+ *p++ = '\0';
+ }
+}
+
+void strdump(void) {
+ size_t i;
+ uint c;
+
+ fprintf(stderr, "ESC%c", strescseq.type);
+ for (i = 0; i < strescseq.len; i++) {
+ c = strescseq.buf[i] & 0xff;
+ if (c == '\0') {
+ putc('\n', stderr);
+ return;
+ } else if (isprint(c)) {
+ putc(c, stderr);
+ } else if (c == '\n') {
+ fprintf(stderr, "(\\n)");
+ } else if (c == '\r') {
+ fprintf(stderr, "(\\r)");
+ } else if (c == 0x1b) {
+ fprintf(stderr, "(\\e)");
+ } else {
+ fprintf(stderr, "(%02x)", c);
+ }
+ }
+ fprintf(stderr, "ESC\\\n");
+}
+
+void strreset(void) {
+ strescseq = (STREscape){
+ .buf = xrealloc(strescseq.buf, STR_BUF_SIZ),
+ .siz = STR_BUF_SIZ,
+ };
+}
+
+void sendbreak(const Arg *arg) {
+ if (tcsendbreak(cmdfd, 0))
+ perror("Error sending break");
+}
+
+void tprinter(char *s, size_t len) {
+ if (iofd != -1 && xwrite(iofd, s, len) < 0) {
+ perror("Error writing to output file");
+ close(iofd);
+ iofd = -1;
+ }
+}
+
+void toggleprinter(const Arg *arg) { term.mode ^= MODE_PRINT; }
+
+void printscreen(const Arg *arg) { tdump(); }
+
+void printsel(const Arg *arg) { tdumpsel(); }
+
+void tdumpsel(void) {
+ char *ptr;
+
+ if ((ptr = getsel())) {
+ tprinter(ptr, strlen(ptr));
+ free(ptr);
+ }
+}
+
+void tdumpline(int n) {
+ char buf[UTF_SIZ];
+ const Glyph *bp, *end;
+
+ bp = &TLINE(n)[0];
+ end = &bp[MIN(tlinelen(n), term.col) - 1];
+ if (bp != end || bp->u != ' ') {
+ for (; bp <= end; ++bp)
+ tprinter(buf, utf8encode(bp->u, buf));
+ }
+ tprinter("\n", 1);
+}
+
+void tdump(void) {
+ int i;
+
+ for (i = 0; i < term.row; ++i)
+ tdumpline(i);
+}
+
+void tputtab(int n) {
+ uint x = term.c.x;
+
+ if (n > 0) {
+ while (x < term.col && n--)
+ for (++x; x < term.col && !term.tabs[x]; ++x)
+ /* nothing */;
+ } else if (n < 0) {
+ while (x > 0 && n++)
+ for (--x; x > 0 && !term.tabs[x]; --x)
+ /* nothing */;
+ }
+ term.c.x = LIMIT(x, 0, term.col - 1);
+}
+
+void tdefutf8(char ascii) {
+ if (ascii == 'G')
+ term.mode |= MODE_UTF8;
+ else if (ascii == '@')
+ term.mode &= ~MODE_UTF8;
+}
+
+void tdeftran(char ascii) {
+ static char cs[] = "0B";
+ static int vcs[] = {CS_GRAPHIC0, CS_USA};
+ char *p;
+
+ if ((p = strchr(cs, ascii)) == NULL) {
+ fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
+ } else {
+ term.trantbl[term.icharset] = vcs[p - cs];
+ }
+}
+
+void tdectest(char c) {
+ int x, y;
+
+ if (c == '8') { /* DEC screen alignment test. */
+ for (x = 0; x < term.col; ++x) {
+ for (y = 0; y < term.row; ++y)
+ tsetchar('E', &term.c.attr, x, y);
+ }
+ }
+}
+
+void tstrsequence(uchar c) {
+ switch (c) {
+ case 0x90: /* DCS -- Device Control String */
+ c = 'P';
+ break;
+ case 0x9f: /* APC -- Application Program Command */
+ c = '_';
+ break;
+ case 0x9e: /* PM -- Privacy Message */
+ c = '^';
+ break;
+ case 0x9d: /* OSC -- Operating System Command */
+ c = ']';
+ break;
+ }
+ strreset();
+ strescseq.type = c;
+ term.esc |= ESC_STR;
+}
+
+void tcontrolcode(uchar ascii) {
+ switch (ascii) {
+ case '\t': /* HT */
+ tputtab(1);
+ return;
+ case '\b': /* BS */
+ tmoveto(term.c.x - 1, term.c.y);
+ return;
+ case '\r': /* CR */
+ tmoveto(0, term.c.y);
+ return;
+ case '\f': /* LF */
+ case '\v': /* VT */
+ case '\n': /* LF */
+ /* go to first col if the mode is set */
+ tnewline(IS_SET(MODE_CRLF));
+ return;
+ case '\a': /* BEL */
+ if (term.esc & ESC_STR_END) {
+ /* backwards compatibility to xterm */
+ strhandle();
+ } else {
+ xbell();
+ }
+ break;
+ case '\033': /* ESC */
+ csireset();
+ term.esc &= ~(ESC_CSI | ESC_ALTCHARSET | ESC_TEST);
+ term.esc |= ESC_START;
+ return;
+ case '\016': /* SO (LS1 -- Locking shift 1) */
+ case '\017': /* SI (LS0 -- Locking shift 0) */
+ term.charset = 1 - (ascii - '\016');
+ return;
+ case '\032': /* SUB */
+ tsetchar('?', &term.c.attr, term.c.x, term.c.y);
+ /* FALLTHROUGH */
+ case '\030': /* CAN */
+ csireset();
+ break;
+ case '\005': /* ENQ (IGNORED) */
+ case '\000': /* NUL (IGNORED) */
+ case '\021': /* XON (IGNORED) */
+ case '\023': /* XOFF (IGNORED) */
+ case 0177: /* DEL (IGNORED) */
+ return;
+ case 0x80: /* TODO: PAD */
+ case 0x81: /* TODO: HOP */
+ case 0x82: /* TODO: BPH */
+ case 0x83: /* TODO: NBH */
+ case 0x84: /* TODO: IND */
+ break;
+ case 0x85: /* NEL -- Next line */
+ tnewline(1); /* always go to first col */
+ break;
+ case 0x86: /* TODO: SSA */
+ case 0x87: /* TODO: ESA */
+ break;
+ case 0x88: /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ break;
+ case 0x89: /* TODO: HTJ */
+ case 0x8a: /* TODO: VTS */
+ case 0x8b: /* TODO: PLD */
+ case 0x8c: /* TODO: PLU */
+ case 0x8d: /* TODO: RI */
+ case 0x8e: /* TODO: SS2 */
+ case 0x8f: /* TODO: SS3 */
+ case 0x91: /* TODO: PU1 */
+ case 0x92: /* TODO: PU2 */
+ case 0x93: /* TODO: STS */
+ case 0x94: /* TODO: CCH */
+ case 0x95: /* TODO: MW */
+ case 0x96: /* TODO: SPA */
+ case 0x97: /* TODO: EPA */
+ case 0x98: /* TODO: SOS */
+ case 0x99: /* TODO: SGCI */
+ break;
+ case 0x9a: /* DECID -- Identify Terminal */
+ ttywrite(vtiden, strlen(vtiden), 0);
+ break;
+ case 0x9b: /* TODO: CSI */
+ case 0x9c: /* TODO: ST */
+ break;
+ case 0x90: /* DCS -- Device Control String */
+ case 0x9d: /* OSC -- Operating System Command */
+ case 0x9e: /* PM -- Privacy Message */
+ case 0x9f: /* APC -- Application Program Command */
+ tstrsequence(ascii);
+ return;
+ }
+ /* only CAN, SUB, \a and C1 chars interrupt a sequence */
+ term.esc &= ~(ESC_STR_END | ESC_STR);
+}
+
+/*
+ * returns 1 when the sequence is finished and it hasn't to read
+ * more characters for this sequence, otherwise 0
+ */
+int eschandle(uchar ascii) {
+ switch (ascii) {
+ case '[':
+ term.esc |= ESC_CSI;
+ return 0;
+ case '#':
+ term.esc |= ESC_TEST;
+ return 0;
+ case '%':
+ term.esc |= ESC_UTF8;
+ return 0;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ case ']': /* OSC -- Operating System Command */
+ case 'k': /* old title set compatibility */
+ tstrsequence(ascii);
+ return 0;
+ case 'n': /* LS2 -- Locking shift 2 */
+ case 'o': /* LS3 -- Locking shift 3 */
+ term.charset = 2 + (ascii - 'n');
+ break;
+ case '(': /* GZD4 -- set primary charset G0 */
+ case ')': /* G1D4 -- set secondary charset G1 */
+ case '*': /* G2D4 -- set tertiary charset G2 */
+ case '+': /* G3D4 -- set quaternary charset G3 */
+ term.icharset = ascii - '(';
+ term.esc |= ESC_ALTCHARSET;
+ return 0;
+ case 'D': /* IND -- Linefeed */
+ if (term.c.y == term.bot) {
+ tscrollup(term.top, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y + 1);
+ }
+ break;
+ case 'E': /* NEL -- Next line */
+ tnewline(1); /* always go to first col */
+ break;
+ case 'H': /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ break;
+ case 'M': /* RI -- Reverse index */
+ if (term.c.y == term.top) {
+ tscrolldown(term.top, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y - 1);
+ }
+ break;
+ case 'Z': /* DECID -- Identify Terminal */
+ ttywrite(vtiden, strlen(vtiden), 0);
+ break;
+ case 'c': /* RIS -- Reset to initial state */
+ treset();
+ resettitle();
+ xloadcols();
+ xsetmode(0, MODE_HIDE);
+ break;
+ case '=': /* DECPAM -- Application keypad */
+ xsetmode(1, MODE_APPKEYPAD);
+ break;
+ case '>': /* DECPNM -- Normal keypad */
+ xsetmode(0, MODE_APPKEYPAD);
+ break;
+ case '7': /* DECSC -- Save Cursor */
+ tcursor(CURSOR_SAVE);
+ break;
+ case '8': /* DECRC -- Restore Cursor */
+ tcursor(CURSOR_LOAD);
+ break;
+ case '\\': /* ST -- String Terminator */
+ if (term.esc & ESC_STR_END)
+ strhandle();
+ break;
+ default:
+ fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", (uchar)ascii,
+ isprint(ascii) ? ascii : '.');
+ break;
+ }
+ return 1;
+}
+
+void tputc(Rune u) {
+ char c[UTF_SIZ];
+ int control;
+ int width, len;
+ Glyph *gp;
+
+ control = ISCONTROL(u);
+ if (u < 127 || !IS_SET(MODE_UTF8)) {
+ c[0] = u;
+ width = len = 1;
+ } else {
+ len = utf8encode(u, c);
+ if (!control && (width = wcwidth(u)) == -1)
+ width = 1;
+ }
+
+ if (IS_SET(MODE_PRINT))
+ tprinter(c, len);
+
+ /*
+ * STR sequence must be checked before anything else
+ * because it uses all following characters until it
+ * receives a ESC, a SUB, a ST or any other C1 control
+ * character.
+ */
+ if (term.esc & ESC_STR) {
+ if (u == '\a' || u == 030 || u == 032 || u == 033 || ISCONTROLC1(u)) {
+ term.esc &= ~(ESC_START | ESC_STR);
+ term.esc |= ESC_STR_END;
+ goto check_control_code;
+ }
+
+ if (strescseq.len + len >= strescseq.siz) {
+ /*
+ * Here is a bug in terminals. If the user never sends
+ * some code to stop the str or esc command, then st
+ * will stop responding. But this is better than
+ * silently failing with unknown characters. At least
+ * then users will report back.
+ *
+ * In the case users ever get fixed, here is the code:
+ */
+ /*
+ * term.esc = 0;
+ * strhandle();
+ */
+ if (strescseq.siz > (SIZE_MAX - UTF_SIZ) / 2)
+ return;
+ strescseq.siz *= 2;
+ strescseq.buf = xrealloc(strescseq.buf, strescseq.siz);
+ }
+
+ memmove(&strescseq.buf[strescseq.len], c, len);
+ strescseq.len += len;
+ return;
+ }
+
+check_control_code:
+ /*
+ * Actions of control codes must be performed as soon they arrive
+ * because they can be embedded inside a control sequence, and
+ * they must not cause conflicts with sequences.
+ */
+ if (control) {
+ /* in UTF-8 mode ignore handling C1 control characters */
+ if (IS_SET(MODE_UTF8) && ISCONTROLC1(u))
+ return;
+ tcontrolcode(u);
+ /*
+ * control codes are not shown ever
+ */
+ if (!term.esc)
+ term.lastc = 0;
+ return;
+ } else if (term.esc & ESC_START) {
+ if (term.esc & ESC_CSI) {
+ csiescseq.buf[csiescseq.len++] = u;
+ if (BETWEEN(u, 0x40, 0x7E) ||
+ csiescseq.len >= sizeof(csiescseq.buf) - 1) {
+ term.esc = 0;
+ csiparse();
+ csihandle();
+ }
+ return;
+ } else if (term.esc & ESC_UTF8) {
+ tdefutf8(u);
+ } else if (term.esc & ESC_ALTCHARSET) {
+ tdeftran(u);
+ } else if (term.esc & ESC_TEST) {
+ tdectest(u);
+ } else {
+ if (!eschandle(u))
+ return;
+ /* sequence already finished */
+ }
+ term.esc = 0;
+ /*
+ * All characters which form part of a sequence are not
+ * printed
+ */
+ return;
+ }
+ if (selected(term.c.x, term.c.y))
+ selclear();
+
+ gp = &TLINE(term.c.y)[term.c.x];
+ if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
+ gp->mode |= ATTR_WRAP;
+ tnewline(1);
+ gp = &TLINE(term.c.y)[term.c.x];
+ }
+
+ if (IS_SET(MODE_INSERT) && term.c.x + width < term.col) {
+ memmove(gp + width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
+ gp->mode &= ~ATTR_WIDE;
+ }
+
+ if (term.c.x + width > term.col) {
+ if (IS_SET(MODE_WRAP))
+ tnewline(1);
+ else
+ tmoveto(term.col - width, term.c.y);
+ gp = &TLINE(term.c.y)[term.c.x];
+ }
+
+ tsetchar(u, &term.c.attr, term.c.x, term.c.y);
+ term.lastc = u;
+
+ if (width == 2) {
+ gp->mode |= ATTR_WIDE;
+ if (term.c.x + 1 < term.col) {
+ if (gp[1].mode == ATTR_WIDE && term.c.x + 2 < term.col) {
+ gp[2].u = ' ';
+ gp[2].mode &= ~ATTR_WDUMMY;
+ }
+ gp[1].u = '\0';
+ gp[1].mode = ATTR_WDUMMY;
+ }
+ }
+ if (term.c.x + width < term.col) {
+ tmoveto(term.c.x + width, term.c.y);
+ } else {
+ term.c.state |= CURSOR_WRAPNEXT;
+ }
+}
+
+int twrite(const char *buf, int buflen, int show_ctrl) {
+ int charsize;
+ Rune u;
+ int n;
+
+ if (TSCREEN.off) {
+ TSCREEN.off = 0;
+ tfulldirt();
+ }
+
+ for (n = 0; n < buflen; n += charsize) {
+ if (IS_SET(MODE_UTF8)) {
+ /* process a complete utf8 char */
+ charsize = utf8decode(buf + n, &u, buflen - n);
+ if (charsize == 0)
+ break;
+ } else {
+ u = buf[n] & 0xFF;
+ charsize = 1;
+ }
+ if (show_ctrl && ISCONTROL(u)) {
+ if (u & 0x80) {
+ u &= 0x7f;
+ tputc('^');
+ tputc('[');
+ } else if (u != '\n' && u != '\r' && u != '\t') {
+ u ^= 0x40;
+ tputc('^');
+ }
+ }
+ tputc(u);
+ }
+ return n;
+}
+
+void clearline(Line line, Glyph g, int x, int xend) {
+ int i;
+ g.mode = 0;
+ g.u = ' ';
+ for (i = x; i < xend; ++i) {
+ line[i] = g;
+ }
+}
+
+Line ensureline(Line line) {
+ if (!line) {
+ line = xmalloc(term.linelen * sizeof(Glyph));
+ }
+ return line;
+}
+
+void tresize(int col, int row) {
+ int i, j;
+ int minrow = MIN(row, term.row);
+ int mincol = MIN(col, term.col);
+ int linelen = MAX(col, term.linelen);
+ int *bp;
+
+ if (col < 1 || row < 1 || row > HISTSIZE) {
+ fprintf(stderr, "tresize: error resizing to %dx%d\n", col, row);
+ return;
+ }
+
+ /* Shift buffer to keep the cursor where we expect it */
+ if (row <= term.c.y) {
+ term.screen[0].cur =
+ (term.screen[0].cur - row + term.c.y + 1) % term.screen[0].size;
+ }
+
+ /* Resize and clear line buffers as needed */
+ if (linelen > term.linelen) {
+ for (i = 0; i < term.screen[0].size; ++i) {
+ if (term.screen[0].buffer[i]) {
+ term.screen[0].buffer[i] =
+ xrealloc(term.screen[0].buffer[i], linelen * sizeof(Glyph));
+ clearline(term.screen[0].buffer[i], term.c.attr, term.linelen, linelen);
+ }
+ }
+ for (i = 0; i < minrow; ++i) {
+ term.screen[1].buffer[i] =
+ xrealloc(term.screen[1].buffer[i], linelen * sizeof(Glyph));
+ clearline(term.screen[1].buffer[i], term.c.attr, term.linelen, linelen);
+ }
+ }
+ /* Allocate all visible lines for regular line buffer */
+ for (j = term.screen[0].cur, i = 0; i < row;
+ ++i, j = (j + 1) % term.screen[0].size) {
+ if (!term.screen[0].buffer[j]) {
+ term.screen[0].buffer[j] = xmalloc(linelen * sizeof(Glyph));
+ }
+ if (i >= term.row) {
+ clearline(term.screen[0].buffer[j], term.c.attr, 0, linelen);
+ }
+ }
+ /* Resize alt screen */
+ term.screen[1].cur = 0;
+ term.screen[1].size = row;
+ for (i = row; i < term.row; ++i) {
+ free(term.screen[1].buffer[i]);
+ }
+ term.screen[1].buffer = xrealloc(term.screen[1].buffer, row * sizeof(Line));
+ for (i = term.row; i < row; ++i) {
+ term.screen[1].buffer[i] = xmalloc(linelen * sizeof(Glyph));
+ clearline(term.screen[1].buffer[i], term.c.attr, 0, linelen);
+ }
+
+ /* resize to new height */
+ term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
+
+ /* fix tabstops */
+ if (col > term.col) {
+ bp = term.tabs + term.col;
+
+ memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ while (--bp > term.tabs && !*bp)
+ /* nothing */;
+ for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
+ *bp = 1;
+ }
+
+ /* update terminal size */
+ term.col = col;
+ term.row = row;
+ term.linelen = linelen;
+ /* reset scrolling region */
+ tsetscroll(0, row - 1);
+ /* make use of the LIMIT in tmoveto */
+ tmoveto(term.c.x, term.c.y);
+ tfulldirt();
+}
+
+void resettitle(void) { xsettitle(NULL); }
+
+void drawregion(int x1, int y1, int x2, int y2) {
+ int y, L;
+
+ L = TLINEOFFSET(y1);
+ for (y = y1; y < y2; y++) {
+ if (term.dirty[y]) {
+ term.dirty[y] = 0;
+ xdrawline(TSCREEN.buffer[L], x1, y, x2);
+ }
+ L = (L + 1) % TSCREEN.size;
+ }
+}
+
+void draw(void) {
+ int cx = term.c.x, ocx = term.ocx, ocy = term.ocy;
+
+ if (!xstartdraw())
+ return;
+
+ /* adjust cursor position */
+ LIMIT(term.ocx, 0, term.col - 1);
+ LIMIT(term.ocy, 0, term.row - 1);
+ if (TLINE(term.ocy)[term.ocx].mode & ATTR_WDUMMY)
+ term.ocx--;
+ if (TLINE(term.c.y)[cx].mode & ATTR_WDUMMY)
+ cx--;
+
+ drawregion(0, 0, term.col, term.row);
+ if (TSCREEN.off == 0)
+ xdrawcursor(cx, term.c.y, TLINE(term.c.y)[cx], term.ocx, term.ocy,
+ TLINE(term.ocy)[term.ocx], TLINE(term.ocy), term.col);
+
+ term.ocx = cx;
+ term.ocy = term.c.y;
+ xfinishdraw();
+ if (ocx != term.ocx || ocy != term.ocy)
+ xximspot(term.ocx, term.ocy);
+}
+
+void redraw(void) {
+ tfulldirt();
+ draw();
+}
diff --git a/st/st.core b/st/st.core
new file mode 100755
index 0000000..65be349
--- /dev/null
+++ b/st/st.core
Binary files differ
diff --git a/st/st.h b/st/st.h
new file mode 100755
index 0000000..4649646
--- /dev/null
+++ b/st/st.h
@@ -0,0 +1,130 @@
+/* See LICENSE for license details. */
+
+#include <stdint.h>
+#include <sys/types.h>
+
+/* macros */
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) < (b) ? (b) : (a))
+#define LEN(a) (sizeof(a) / sizeof(a)[0])
+#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
+#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d))
+#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
+#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
+#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP)) != ((b).mode & (~ATTR_WRAP)) || \
+ (a).fg != (b).fg || \
+ (a).bg != (b).bg)
+#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
+ (t1.tv_nsec-t2.tv_nsec)/1E6)
+#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
+
+#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
+#define IS_TRUECOL(x) (1 << 24 & (x))
+#define HISTSIZE 2000
+
+enum glyph_attribute {
+ ATTR_NULL = 0,
+ ATTR_BOLD = 1 << 0,
+ ATTR_FAINT = 1 << 1,
+ ATTR_ITALIC = 1 << 2,
+ ATTR_UNDERLINE = 1 << 3,
+ ATTR_BLINK = 1 << 4,
+ ATTR_REVERSE = 1 << 5,
+ ATTR_INVISIBLE = 1 << 6,
+ ATTR_STRUCK = 1 << 7,
+ ATTR_WRAP = 1 << 8,
+ ATTR_WIDE = 1 << 9,
+ ATTR_WDUMMY = 1 << 10,
+ ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+};
+
+enum selection_mode {
+ SEL_IDLE = 0,
+ SEL_EMPTY = 1,
+ SEL_READY = 2
+};
+
+enum selection_type {
+ SEL_REGULAR = 1,
+ SEL_RECTANGULAR = 2
+};
+
+enum selection_snap {
+ SNAP_WORD = 1,
+ SNAP_LINE = 2
+};
+
+typedef unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned long ulong;
+typedef unsigned short ushort;
+
+typedef uint_least32_t Rune;
+
+#define Glyph Glyph_
+typedef struct {
+ Rune u; /* character code */
+ ushort mode; /* attribute flags */
+ uint32_t fg; /* foreground */
+ uint32_t bg; /* background */
+} Glyph;
+
+typedef Glyph *Line;
+
+typedef union {
+ int i;
+ uint ui;
+ float f;
+ const void *v;
+ const char *s;
+} Arg;
+
+void die(const char *, ...);
+void redraw(void);
+void draw(void);
+
+void printscreen(const Arg *);
+void printsel(const Arg *);
+void sendbreak(const Arg *);
+void toggleprinter(const Arg *);
+
+int tattrset(int);
+void tnew(int, int);
+void tresize(int, int);
+void tsetdirtattr(int);
+void ttyhangup(void);
+int ttynew(const char *, char *, const char *, char **);
+size_t ttyread(void);
+void ttyresize(int, int);
+void ttywrite(const char *, size_t, int);
+
+void resettitle(void);
+
+void selclear(void);
+void selinit(void);
+void selstart(int, int, int);
+void selextend(int, int, int, int);
+int selected(int, int);
+char *getsel(void);
+
+size_t utf8encode(Rune, char *);
+
+void *xmalloc(size_t);
+void *xrealloc(void *, size_t);
+char *xstrdup(const char *);
+
+/* config.h globals */
+extern char *utmp;
+extern char *scroll;
+extern char *stty_args;
+extern char *vtiden;
+extern wchar_t *worddelimiters;
+extern int allowaltscreen;
+extern int allowwindowops;
+extern char *termname;
+extern unsigned int tabspaces;
+extern unsigned int defaultfg;
+extern unsigned int defaultbg;
+extern unsigned int defaultcs;
+extern float alpha;
+extern float alpha_def;
diff --git a/st/st.info b/st/st.info
new file mode 100755
index 0000000..efab2cf
--- /dev/null
+++ b/st/st.info
@@ -0,0 +1,243 @@
+st-mono| simpleterm monocolor,
+ acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
+ am,
+ bce,
+ bel=^G,
+ blink=\E[5m,
+ bold=\E[1m,
+ cbt=\E[Z,
+ cvvis=\E[?25h,
+ civis=\E[?25l,
+ clear=\E[H\E[2J,
+ cnorm=\E[?12l\E[?25h,
+ colors#2,
+ cols#80,
+ cr=^M,
+ csr=\E[%i%p1%d;%p2%dr,
+ cub=\E[%p1%dD,
+ cub1=^H,
+ cud1=^J,
+ cud=\E[%p1%dB,
+ cuf1=\E[C,
+ cuf=\E[%p1%dC,
+ cup=\E[%i%p1%d;%p2%dH,
+ cuu1=\E[A,
+ cuu=\E[%p1%dA,
+ dch=\E[%p1%dP,
+ dch1=\E[P,
+ dim=\E[2m,
+ dl=\E[%p1%dM,
+ dl1=\E[M,
+ ech=\E[%p1%dX,
+ ed=\E[J,
+ el=\E[K,
+ el1=\E[1K,
+ enacs=\E)0,
+ flash=\E[?5h$<80/>\E[?5l,
+ fsl=^G,
+ home=\E[H,
+ hpa=\E[%i%p1%dG,
+ hs,
+ ht=^I,
+ hts=\EH,
+ ich=\E[%p1%d@,
+ il1=\E[L,
+ il=\E[%p1%dL,
+ ind=^J,
+ indn=\E[%p1%dS,
+ invis=\E[8m,
+ is2=\E[4l\E>\E[?1034l,
+ it#8,
+ kel=\E[1;2F,
+ ked=\E[1;5F,
+ ka1=\E[1~,
+ ka3=\E[5~,
+ kc1=\E[4~,
+ kc3=\E[6~,
+ kbs=\177,
+ kcbt=\E[Z,
+ kb2=\EOu,
+ kcub1=\EOD,
+ kcud1=\EOB,
+ kcuf1=\EOC,
+ kcuu1=\EOA,
+ kDC=\E[3;2~,
+ kent=\EOM,
+ kEND=\E[1;2F,
+ kIC=\E[2;2~,
+ kNXT=\E[6;2~,
+ kPRV=\E[5;2~,
+ kHOM=\E[1;2H,
+ kLFT=\E[1;2D,
+ kRIT=\E[1;2C,
+ kind=\E[1;2B,
+ kri=\E[1;2A,
+ kclr=\E[3;5~,
+ kdl1=\E[3;2~,
+ kdch1=\E[3~,
+ kich1=\E[2~,
+ kend=\E[4~,
+ kf1=\EOP,
+ kf2=\EOQ,
+ kf3=\EOR,
+ kf4=\EOS,
+ kf5=\E[15~,
+ kf6=\E[17~,
+ kf7=\E[18~,
+ kf8=\E[19~,
+ kf9=\E[20~,
+ kf10=\E[21~,
+ kf11=\E[23~,
+ kf12=\E[24~,
+ kf13=\E[1;2P,
+ kf14=\E[1;2Q,
+ kf15=\E[1;2R,
+ kf16=\E[1;2S,
+ kf17=\E[15;2~,
+ kf18=\E[17;2~,
+ kf19=\E[18;2~,
+ kf20=\E[19;2~,
+ kf21=\E[20;2~,
+ kf22=\E[21;2~,
+ kf23=\E[23;2~,
+ kf24=\E[24;2~,
+ kf25=\E[1;5P,
+ kf26=\E[1;5Q,
+ kf27=\E[1;5R,
+ kf28=\E[1;5S,
+ kf29=\E[15;5~,
+ kf30=\E[17;5~,
+ kf31=\E[18;5~,
+ kf32=\E[19;5~,
+ kf33=\E[20;5~,
+ kf34=\E[21;5~,
+ kf35=\E[23;5~,
+ kf36=\E[24;5~,
+ kf37=\E[1;6P,
+ kf38=\E[1;6Q,
+ kf39=\E[1;6R,
+ kf40=\E[1;6S,
+ kf41=\E[15;6~,
+ kf42=\E[17;6~,
+ kf43=\E[18;6~,
+ kf44=\E[19;6~,
+ kf45=\E[20;6~,
+ kf46=\E[21;6~,
+ kf47=\E[23;6~,
+ kf48=\E[24;6~,
+ kf49=\E[1;3P,
+ kf50=\E[1;3Q,
+ kf51=\E[1;3R,
+ kf52=\E[1;3S,
+ kf53=\E[15;3~,
+ kf54=\E[17;3~,
+ kf55=\E[18;3~,
+ kf56=\E[19;3~,
+ kf57=\E[20;3~,
+ kf58=\E[21;3~,
+ kf59=\E[23;3~,
+ kf60=\E[24;3~,
+ kf61=\E[1;4P,
+ kf62=\E[1;4Q,
+ kf63=\E[1;4R,
+ khome=\E[1~,
+ kil1=\E[2;5~,
+ krmir=\E[2;2~,
+ knp=\E[6~,
+ kmous=\E[M,
+ kpp=\E[5~,
+ lines#24,
+ mir,
+ msgr,
+ npc,
+ op=\E[39;49m,
+ pairs#64,
+ mc0=\E[i,
+ mc4=\E[4i,
+ mc5=\E[5i,
+ rc=\E8,
+ rev=\E[7m,
+ ri=\EM,
+ rin=\E[%p1%dT,
+ ritm=\E[23m,
+ rmacs=\E(B,
+ rmcup=\E[?1049l,
+ rmir=\E[4l,
+ rmkx=\E[?1l\E>,
+ rmso=\E[27m,
+ rmul=\E[24m,
+ rs1=\Ec,
+ rs2=\E[4l\E>\E[?1034l,
+ sc=\E7,
+ sitm=\E[3m,
+ sgr0=\E[0m,
+ smacs=\E(0,
+ smcup=\E[?1049h,
+ smir=\E[4h,
+ smkx=\E[?1h\E=,
+ smso=\E[7m,
+ smul=\E[4m,
+ tbc=\E[3g,
+ tsl=\E]0;,
+ xenl,
+ vpa=\E[%i%p1%dd,
+# XTerm extensions
+ rmxx=\E[29m,
+ smxx=\E[9m,
+ BE=\E[?2004h,
+ BD=\E[?2004l,
+ PS=\E[200~,
+ PE=\E[201~,
+# disabled rep for now: causes some issues with older ncurses versions.
+# rep=%p1%c\E[%p2%{1}%-%db,
+# tmux extensions, see TERMINFO EXTENSIONS in tmux(1)
+ Tc,
+ Ms=\E]52;%p1%s;%p2%s\007,
+ Se=\E[2 q,
+ Ss=\E[%p1%d q,
+
+st| simpleterm,
+ use=st-mono,
+ colors#8,
+ setab=\E[4%p1%dm,
+ setaf=\E[3%p1%dm,
+ setb=\E[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
+ setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
+ sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m,
+
+st-256color| simpleterm with 256 colors,
+ use=st,
+ ccc,
+ colors#256,
+ oc=\E]104\007,
+ pairs#32767,
+# Nicked from xterm-256color
+ initc=\E]4;%p1%d;rgb\:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\E\\,
+ setab=\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m,
+ setaf=\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m,
+
+st-meta| simpleterm with meta key,
+ use=st,
+ km,
+ rmm=\E[?1034l,
+ smm=\E[?1034h,
+ rs2=\E[4l\E>\E[?1034h,
+ is2=\E[4l\E>\E[?1034h,
+
+st-meta-256color| simpleterm with meta key and 256 colors,
+ use=st-256color,
+ km,
+ rmm=\E[?1034l,
+ smm=\E[?1034h,
+ rs2=\E[4l\E>\E[?1034h,
+ is2=\E[4l\E>\E[?1034h,
+
+st-bs| simpleterm with backspace as backspace,
+ use=st,
+ kbs=\010,
+ kdch1=\177,
+
+st-bs-256color| simpleterm with backspace as backspace and 256colors,
+ use=st-256color,
+ kbs=\010,
+ kdch1=\177,
diff --git a/st/win.h b/st/win.h
new file mode 100755
index 0000000..94679e4
--- /dev/null
+++ b/st/win.h
@@ -0,0 +1,41 @@
+/* See LICENSE for license details. */
+
+enum win_mode {
+ MODE_VISIBLE = 1 << 0,
+ MODE_FOCUSED = 1 << 1,
+ MODE_APPKEYPAD = 1 << 2,
+ MODE_MOUSEBTN = 1 << 3,
+ MODE_MOUSEMOTION = 1 << 4,
+ MODE_REVERSE = 1 << 5,
+ MODE_KBDLOCK = 1 << 6,
+ MODE_HIDE = 1 << 7,
+ MODE_APPCURSOR = 1 << 8,
+ MODE_MOUSESGR = 1 << 9,
+ MODE_8BIT = 1 << 10,
+ MODE_BLINK = 1 << 11,
+ MODE_FBLINK = 1 << 12,
+ MODE_FOCUS = 1 << 13,
+ MODE_MOUSEX10 = 1 << 14,
+ MODE_MOUSEMANY = 1 << 15,
+ MODE_BRCKTPASTE = 1 << 16,
+ MODE_NUMLOCK = 1 << 17,
+ MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
+ |MODE_MOUSEMANY,
+};
+
+void xbell(void);
+void xclipcopy(void);
+void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int);
+void xdrawline(Line, int, int, int);
+void xfinishdraw(void);
+void xloadcols(void);
+int xsetcolorname(int, const char *);
+int xgetcolor(int, unsigned char *, unsigned char *, unsigned char *);
+void xseticontitle(char *);
+void xsettitle(char *);
+int xsetcursor(int);
+void xsetmode(int, unsigned int);
+void xsetpointermotion(int);
+void xsetsel(char *);
+int xstartdraw(void);
+void xximspot(int, int);
diff --git a/st/x.c b/st/x.c
new file mode 100755
index 0000000..0cb35e8
--- /dev/null
+++ b/st/x.c
@@ -0,0 +1,2319 @@
+/* See LICENSE for license details. */
+#include <errno.h>
+#include <math.h>
+#include <limits.h>
+#include <locale.h>
+#include <signal.h>
+#include <sys/select.h>
+#include <time.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <X11/Xft/Xft.h>
+#include <X11/XKBlib.h>
+#include <X11/Xresource.h>
+
+char *argv0;
+#include "arg.h"
+#include "st.h"
+#include "win.h"
+#include "hb.h"
+
+/* types used in config.h */
+typedef struct {
+ uint mod;
+ KeySym keysym;
+ void (*func)(const Arg *);
+ const Arg arg;
+} Shortcut;
+
+typedef struct {
+ uint mod;
+ uint button;
+ void (*func)(const Arg *);
+ const Arg arg;
+ uint release;
+} MouseShortcut;
+
+typedef struct {
+ KeySym k;
+ uint mask;
+ char *s;
+ /* three-valued logic variables: 0 indifferent, 1 on, -1 off */
+ signed char appkey; /* application keypad */
+ signed char appcursor; /* application cursor */
+} Key;
+
+/* X modifiers */
+#define XK_ANY_MOD UINT_MAX
+#define XK_NO_MOD 0
+#define XK_SWITCH_MOD (1<<13|1<<14)
+
+/* function definitions used in config.h */
+static void clipcopy(const Arg *);
+static void clippaste(const Arg *);
+static void numlock(const Arg *);
+static void selpaste(const Arg *);
+static void zoom(const Arg *);
+static void zoomabs(const Arg *);
+static void zoomreset(const Arg *);
+static void ttysend(const Arg *);
+static void chgalpha(const Arg *);
+void kscrollup(const Arg *);
+void kscrolldown(const Arg *);
+
+/* config.h for applying patches and the configuration. */
+#include "config.h"
+
+/* XEMBED messages */
+#define XEMBED_FOCUS_IN 4
+#define XEMBED_FOCUS_OUT 5
+
+/* macros */
+#define IS_SET(flag) ((win.mode & (flag)) != 0)
+#define TRUERED(x) (((x) & 0xff0000) >> 8)
+#define TRUEGREEN(x) (((x) & 0xff00))
+#define TRUEBLUE(x) (((x) & 0xff) << 8)
+
+typedef XftDraw *Draw;
+typedef XftColor Color;
+typedef XftGlyphFontSpec GlyphFontSpec;
+
+/* Purely graphic info */
+typedef struct {
+ int tw, th; /* tty width and height */
+ int w, h; /* window width and height */
+ int ch; /* char height */
+ int cw; /* char width */
+ int mode; /* window state/mode flags */
+ int cursor; /* cursor style */
+} TermWindow;
+
+typedef struct {
+ Display *dpy;
+ Colormap cmap;
+ Window win;
+ Drawable buf;
+ GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
+ Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;
+ struct {
+ XIM xim;
+ XIC xic;
+ XPoint spot;
+ XVaNestedList spotlist;
+ } ime;
+ Draw draw;
+ Visual *vis;
+ XSetWindowAttributes attrs;
+ int scr;
+ int isfixed; /* is fixed geometry? */
+ int depth; /* bit depth */
+ int l, t; /* left and top offset */
+ int gm; /* geometry mask */
+} XWindow;
+
+typedef struct {
+ Atom xtarget;
+ char *primary, *clipboard;
+ struct timespec tclick1;
+ struct timespec tclick2;
+} XSelection;
+
+/* Font structure */
+#define Font Font_
+typedef struct {
+ int height;
+ int width;
+ int ascent;
+ int descent;
+ int badslant;
+ int badweight;
+ short lbearing;
+ short rbearing;
+ XftFont *match;
+ FcFontSet *set;
+ FcPattern *pattern;
+} Font;
+
+/* Drawing Context */
+typedef struct {
+ Color *col;
+ size_t collen;
+ Font font, bfont, ifont, ibfont;
+ GC gc;
+} DC;
+
+static inline ushort sixd_to_16bit(int);
+static void xresetfontsettings(ushort mode, Font **font, int *frcflags);
+static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
+static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
+static void xdrawglyph(Glyph, int, int);
+static void xclear(int, int, int, int);
+static int xgeommasktogravity(int);
+static int ximopen(Display *);
+static void ximinstantiate(Display *, XPointer, XPointer);
+static void ximdestroy(XIM, XPointer, XPointer);
+static int xicdestroy(XIC, XPointer, XPointer);
+static void xinit(int, int);
+static void cresize(int, int);
+static void xresize(int, int);
+static void xhints(void);
+static int xloadcolor(int, const char *, Color *);
+static int xloadfont(Font *, FcPattern *);
+static void xloadfonts(const char *, double);
+static void xunloadfont(Font *);
+static void xunloadfonts(void);
+static void xsetenv(void);
+static void xseturgency(int);
+static int evcol(XEvent *);
+static int evrow(XEvent *);
+
+static void expose(XEvent *);
+static void visibility(XEvent *);
+static void unmap(XEvent *);
+static void kpress(XEvent *);
+static void cmessage(XEvent *);
+static void resize(XEvent *);
+static void focus(XEvent *);
+static uint buttonmask(uint);
+static int mouseaction(XEvent *, uint);
+static void brelease(XEvent *);
+static void bpress(XEvent *);
+static void bmotion(XEvent *);
+static void propnotify(XEvent *);
+static void selnotify(XEvent *);
+static void selclear_(XEvent *);
+static void selrequest(XEvent *);
+static void setsel(char *, Time);
+static void mousesel(XEvent *, int);
+static void mousereport(XEvent *);
+static char *kmap(KeySym, uint);
+static int match(uint, uint);
+
+static void run(void);
+static void usage(void);
+
+static void (*handler[LASTEvent])(XEvent *) = {
+ [KeyPress] = kpress,
+ [ClientMessage] = cmessage,
+ [ConfigureNotify] = resize,
+ [VisibilityNotify] = visibility,
+ [UnmapNotify] = unmap,
+ [Expose] = expose,
+ [FocusIn] = focus,
+ [FocusOut] = focus,
+ [MotionNotify] = bmotion,
+ [ButtonPress] = bpress,
+ [ButtonRelease] = brelease,
+/*
+ * Uncomment if you want the selection to disappear when you select something
+ * different in another window.
+ */
+/* [SelectionClear] = selclear_, */
+ [SelectionNotify] = selnotify,
+/*
+ * PropertyNotify is only turned on when there is some INCR transfer happening
+ * for the selection retrieval.
+ */
+ [PropertyNotify] = propnotify,
+ [SelectionRequest] = selrequest,
+};
+
+/* Globals */
+static DC dc;
+static XWindow xw;
+static XSelection xsel;
+static TermWindow win;
+
+/* Font Ring Cache */
+enum {
+ FRC_NORMAL,
+ FRC_ITALIC,
+ FRC_BOLD,
+ FRC_ITALICBOLD
+};
+
+typedef struct {
+ XftFont *font;
+ int flags;
+ Rune unicodep;
+} Fontcache;
+
+/* Fontcache is an array now. A new font will be appended to the array. */
+static Fontcache *frc = NULL;
+static int frclen = 0;
+static int frccap = 0;
+static char *usedfont = NULL;
+static double usedfontsize = 0;
+static double defaultfontsize = 0;
+
+static char *opt_alpha = NULL;
+static char *opt_class = NULL;
+static char **opt_cmd = NULL;
+static char *opt_embed = NULL;
+static char *opt_font = NULL;
+static char *opt_io = NULL;
+static char *opt_line = NULL;
+static char *opt_name = NULL;
+static char *opt_title = NULL;
+
+static uint buttons; /* bit field of pressed buttons */
+
+void
+clipcopy(const Arg *dummy)
+{
+ Atom clipboard;
+
+ free(xsel.clipboard);
+ xsel.clipboard = NULL;
+
+ if (xsel.primary != NULL) {
+ xsel.clipboard = xstrdup(xsel.primary);
+ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+ XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
+ }
+}
+
+void
+clippaste(const Arg *dummy)
+{
+ Atom clipboard;
+
+ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+ XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard,
+ xw.win, CurrentTime);
+}
+
+void
+selpaste(const Arg *dummy)
+{
+ XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY,
+ xw.win, CurrentTime);
+}
+
+void
+numlock(const Arg *dummy)
+{
+ win.mode ^= MODE_NUMLOCK;
+}
+
+void
+zoom(const Arg *arg)
+{
+ Arg larg;
+
+ larg.f = usedfontsize + arg->f;
+ zoomabs(&larg);
+}
+
+void
+zoomabs(const Arg *arg)
+{
+ xunloadfonts();
+ xloadfonts(usedfont, arg->f);
+ cresize(0, 0);
+ redraw();
+ xhints();
+}
+
+void
+zoomreset(const Arg *arg)
+{
+ Arg larg;
+
+ if (defaultfontsize > 0) {
+ larg.f = defaultfontsize;
+ zoomabs(&larg);
+ }
+}
+
+void
+ttysend(const Arg *arg)
+{
+ ttywrite(arg->s, strlen(arg->s), 1);
+}
+
+int
+evcol(XEvent *e)
+{
+ int x = e->xbutton.x - borderpx;
+ LIMIT(x, 0, win.tw - 1);
+ return x / win.cw;
+}
+
+int
+evrow(XEvent *e)
+{
+ int y = e->xbutton.y - borderpx;
+ LIMIT(y, 0, win.th - 1);
+ return y / win.ch;
+}
+
+void
+mousesel(XEvent *e, int done)
+{
+ int type, seltype = SEL_REGULAR;
+ uint state = e->xbutton.state & ~(Button1Mask | forcemousemod);
+
+ for (type = 1; type < LEN(selmasks); ++type) {
+ if (match(selmasks[type], state)) {
+ seltype = type;
+ break;
+ }
+ }
+ selextend(evcol(e), evrow(e), seltype, done);
+ if (done)
+ setsel(getsel(), e->xbutton.time);
+}
+
+void
+mousereport(XEvent *e)
+{
+ int len, btn, code;
+ int x = evcol(e), y = evrow(e);
+ int state = e->xbutton.state;
+ char buf[40];
+ static int ox, oy;
+
+ if (e->type == MotionNotify) {
+ if (x == ox && y == oy)
+ return;
+ if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
+ return;
+ /* MODE_MOUSEMOTION: no reporting if no button is pressed */
+ if (IS_SET(MODE_MOUSEMOTION) && buttons == 0)
+ return;
+ /* Set btn to lowest-numbered pressed button, or 12 if no
+ * buttons are pressed. */
+ for (btn = 1; btn <= 11 && !(buttons & (1<<(btn-1))); btn++)
+ ;
+ code = 32;
+ } else {
+ btn = e->xbutton.button;
+ /* Only buttons 1 through 11 can be encoded */
+ if (btn < 1 || btn > 11)
+ return;
+ if (e->type == ButtonRelease) {
+ /* MODE_MOUSEX10: no button release reporting */
+ if (IS_SET(MODE_MOUSEX10))
+ return;
+ /* Don't send release events for the scroll wheel */
+ if (btn == 4 || btn == 5)
+ return;
+ }
+ code = 0;
+ }
+
+ ox = x;
+ oy = y;
+
+ /* Encode btn into code. If no button is pressed for a motion event in
+ * MODE_MOUSEMANY, then encode it as a release. */
+ if ((!IS_SET(MODE_MOUSESGR) && e->type == ButtonRelease) || btn == 12)
+ code += 3;
+ else if (btn >= 8)
+ code += 128 + btn - 8;
+ else if (btn >= 4)
+ code += 64 + btn - 4;
+ else
+ code += btn - 1;
+
+ if (!IS_SET(MODE_MOUSEX10)) {
+ code += ((state & ShiftMask ) ? 4 : 0)
+ + ((state & Mod1Mask ) ? 8 : 0) /* meta key: alt */
+ + ((state & ControlMask) ? 16 : 0);
+ }
+
+ if (IS_SET(MODE_MOUSESGR)) {
+ len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
+ code, x+1, y+1,
+ e->type == ButtonRelease ? 'm' : 'M');
+ } else if (x < 223 && y < 223) {
+ len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
+ 32+code, 32+x+1, 32+y+1);
+ } else {
+ return;
+ }
+
+ ttywrite(buf, len, 0);
+}
+
+uint
+buttonmask(uint button)
+{
+ return button == Button1 ? Button1Mask
+ : button == Button2 ? Button2Mask
+ : button == Button3 ? Button3Mask
+ : button == Button4 ? Button4Mask
+ : button == Button5 ? Button5Mask
+ : 0;
+}
+
+int
+mouseaction(XEvent *e, uint release)
+{
+ MouseShortcut *ms;
+
+ /* ignore Button<N>mask for Button<N> - it's set on release */
+ uint state = e->xbutton.state & ~buttonmask(e->xbutton.button);
+
+ for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
+ if (ms->release == release &&
+ ms->button == e->xbutton.button &&
+ (match(ms->mod, state) || /* exact or forced */
+ match(ms->mod, state & ~forcemousemod))) {
+ ms->func(&(ms->arg));
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+void
+bpress(XEvent *e)
+{
+ int btn = e->xbutton.button;
+ struct timespec now;
+ int snap;
+
+ if (1 <= btn && btn <= 11)
+ buttons |= 1 << (btn-1);
+
+ if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
+ mousereport(e);
+ return;
+ }
+
+ if (mouseaction(e, 0))
+ return;
+
+ if (btn == Button1) {
+ /*
+ * If the user clicks below predefined timeouts specific
+ * snapping behaviour is exposed.
+ */
+ clock_gettime(CLOCK_MONOTONIC, &now);
+ if (TIMEDIFF(now, xsel.tclick2) <= tripleclicktimeout) {
+ snap = SNAP_LINE;
+ } else if (TIMEDIFF(now, xsel.tclick1) <= doubleclicktimeout) {
+ snap = SNAP_WORD;
+ } else {
+ snap = 0;
+ }
+ xsel.tclick2 = xsel.tclick1;
+ xsel.tclick1 = now;
+
+ selstart(evcol(e), evrow(e), snap);
+ }
+}
+
+void
+propnotify(XEvent *e)
+{
+ XPropertyEvent *xpev;
+ Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+
+ xpev = &e->xproperty;
+ if (xpev->state == PropertyNewValue &&
+ (xpev->atom == XA_PRIMARY ||
+ xpev->atom == clipboard)) {
+ selnotify(e);
+ }
+}
+
+void
+selnotify(XEvent *e)
+{
+ ulong nitems, ofs, rem;
+ int format;
+ uchar *data, *last, *repl;
+ Atom type, incratom, property = None;
+
+ incratom = XInternAtom(xw.dpy, "INCR", 0);
+
+ ofs = 0;
+ if (e->type == SelectionNotify)
+ property = e->xselection.property;
+ else if (e->type == PropertyNotify)
+ property = e->xproperty.atom;
+
+ if (property == None)
+ return;
+
+ do {
+ if (XGetWindowProperty(xw.dpy, xw.win, property, ofs,
+ BUFSIZ/4, False, AnyPropertyType,
+ &type, &format, &nitems, &rem,
+ &data)) {
+ fprintf(stderr, "Clipboard allocation failed\n");
+ return;
+ }
+
+ if (e->type == PropertyNotify && nitems == 0 && rem == 0) {
+ /*
+ * If there is some PropertyNotify with no data, then
+ * this is the signal of the selection owner that all
+ * data has been transferred. We won't need to receive
+ * PropertyNotify events anymore.
+ */
+ MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask);
+ XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
+ &xw.attrs);
+ }
+
+ if (type == incratom) {
+ /*
+ * Activate the PropertyNotify events so we receive
+ * when the selection owner does send us the next
+ * chunk of data.
+ */
+ MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask);
+ XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
+ &xw.attrs);
+
+ /*
+ * Deleting the property is the transfer start signal.
+ */
+ XDeleteProperty(xw.dpy, xw.win, (int)property);
+ continue;
+ }
+
+ /*
+ * As seen in getsel:
+ * Line endings are inconsistent in the terminal and GUI world
+ * copy and pasting. When receiving some selection data,
+ * replace all '\n' with '\r'.
+ * FIXME: Fix the computer world.
+ */
+ repl = data;
+ last = data + nitems * format / 8;
+ while ((repl = memchr(repl, '\n', last - repl))) {
+ *repl++ = '\r';
+ }
+
+ if (IS_SET(MODE_BRCKTPASTE) && ofs == 0)
+ ttywrite("\033[200~", 6, 0);
+ ttywrite((char *)data, nitems * format / 8, 1);
+ if (IS_SET(MODE_BRCKTPASTE) && rem == 0)
+ ttywrite("\033[201~", 6, 0);
+ XFree(data);
+ /* number of 32-bit chunks returned */
+ ofs += nitems * format / 32;
+ } while (rem > 0);
+
+ /*
+ * Deleting the property again tells the selection owner to send the
+ * next data chunk in the property.
+ */
+ XDeleteProperty(xw.dpy, xw.win, (int)property);
+}
+
+void
+xclipcopy(void)
+{
+ clipcopy(NULL);
+}
+
+void
+selclear_(XEvent *e)
+{
+ selclear();
+}
+
+void
+selrequest(XEvent *e)
+{
+ XSelectionRequestEvent *xsre;
+ XSelectionEvent xev;
+ Atom xa_targets, string, clipboard;
+ char *seltext;
+
+ xsre = (XSelectionRequestEvent *) e;
+ xev.type = SelectionNotify;
+ xev.requestor = xsre->requestor;
+ xev.selection = xsre->selection;
+ xev.target = xsre->target;
+ xev.time = xsre->time;
+ if (xsre->property == None)
+ xsre->property = xsre->target;
+
+ /* reject */
+ xev.property = None;
+
+ xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
+ if (xsre->target == xa_targets) {
+ /* respond with the supported type */
+ string = xsel.xtarget;
+ XChangeProperty(xsre->display, xsre->requestor, xsre->property,
+ XA_ATOM, 32, PropModeReplace,
+ (uchar *) &string, 1);
+ xev.property = xsre->property;
+ } else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) {
+ /*
+ * xith XA_STRING non ascii characters may be incorrect in the
+ * requestor. It is not our problem, use utf8.
+ */
+ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+ if (xsre->selection == XA_PRIMARY) {
+ seltext = xsel.primary;
+ } else if (xsre->selection == clipboard) {
+ seltext = xsel.clipboard;
+ } else {
+ fprintf(stderr,
+ "Unhandled clipboard selection 0x%lx\n",
+ xsre->selection);
+ return;
+ }
+ if (seltext != NULL) {
+ XChangeProperty(xsre->display, xsre->requestor,
+ xsre->property, xsre->target,
+ 8, PropModeReplace,
+ (uchar *)seltext, strlen(seltext));
+ xev.property = xsre->property;
+ }
+ }
+
+ /* all done, send a notification to the listener */
+ if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev))
+ fprintf(stderr, "Error sending SelectionNotify event\n");
+}
+
+void
+setsel(char *str, Time t)
+{
+ if (!str)
+ return;
+
+ free(xsel.primary);
+ xsel.primary = str;
+
+ XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
+ if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
+ selclear();
+}
+
+void
+xsetsel(char *str)
+{
+ setsel(str, CurrentTime);
+}
+
+void
+brelease(XEvent *e)
+{
+ int btn = e->xbutton.button;
+
+ if (1 <= btn && btn <= 11)
+ buttons &= ~(1 << (btn-1));
+
+ if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
+ mousereport(e);
+ return;
+ }
+
+ if (mouseaction(e, 1))
+ return;
+ if (btn == Button1)
+ mousesel(e, 1);
+}
+
+void
+bmotion(XEvent *e)
+{
+ if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
+ mousereport(e);
+ return;
+ }
+
+ mousesel(e, 0);
+}
+
+void
+cresize(int width, int height)
+{
+ int col, row;
+
+ if (width != 0)
+ win.w = width;
+ if (height != 0)
+ win.h = height;
+
+ col = (win.w - 2 * borderpx) / win.cw;
+ row = (win.h - 2 * borderpx) / win.ch;
+ col = MAX(1, col);
+ row = MAX(1, row);
+
+ tresize(col, row);
+ xresize(col, row);
+ ttyresize(win.tw, win.th);
+}
+
+void
+xresize(int col, int row)
+{
+ win.tw = col * win.cw;
+ win.th = row * win.ch;
+
+ XFreePixmap(xw.dpy, xw.buf);
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
+ xw.depth);
+ XftDrawChange(xw.draw, xw.buf);
+ xclear(0, 0, win.w, win.h);
+
+ /* resize to new width */
+ xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec) * 4);
+}
+
+ushort
+sixd_to_16bit(int x)
+{
+ return x == 0 ? 0 : 0x3737 + 0x2828 * x;
+}
+
+int
+xloadcolor(int i, const char *name, Color *ncolor)
+{
+ XRenderColor color = { .alpha = 0xffff };
+
+ if (!name) {
+ if (BETWEEN(i, 16, 255)) { /* 256 color */
+ if (i < 6*6*6+16) { /* same colors as xterm */
+ color.red = sixd_to_16bit( ((i-16)/36)%6 );
+ color.green = sixd_to_16bit( ((i-16)/6) %6 );
+ color.blue = sixd_to_16bit( ((i-16)/1) %6 );
+ } else { /* greyscale */
+ color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16));
+ color.green = color.blue = color.red;
+ }
+ return XftColorAllocValue(xw.dpy, xw.vis,
+ xw.cmap, &color, ncolor);
+ } else
+ name = colorname[i];
+ }
+
+ return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
+}
+
+void
+xloadcols(void)
+{
+ int i;
+ static int loaded;
+ Color *cp;
+
+ if (loaded) {
+ for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
+ XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
+ } else {
+ dc.collen = MAX(LEN(colorname), 256);
+ dc.col = xmalloc(dc.collen * sizeof(Color));
+ }
+
+ for (i = 0; i < dc.collen; i++)
+ if (!xloadcolor(i, NULL, &dc.col[i])) {
+ if (colorname[i])
+ die("could not allocate color '%s'\n", colorname[i]);
+ else
+ die("could not allocate color %d\n", i);
+ }
+
+ /* set alpha value of bg color */
+ if (opt_alpha)
+ alpha = strtof(opt_alpha, NULL);
+ dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
+ dc.col[defaultbg].pixel &= 0x00FFFFFF;
+ dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
+ loaded = 1;
+}
+
+int
+xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b)
+{
+ if (!BETWEEN(x, 0, dc.collen - 1))
+ return 1;
+
+ *r = dc.col[x].color.red >> 8;
+ *g = dc.col[x].color.green >> 8;
+ *b = dc.col[x].color.blue >> 8;
+
+ return 0;
+}
+
+int
+xsetcolorname(int x, const char *name)
+{
+ Color ncolor;
+
+ if (!BETWEEN(x, 0, dc.collen - 1))
+ return 1;
+
+ if (!xloadcolor(x, name, &ncolor))
+ return 1;
+
+ XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
+ dc.col[x] = ncolor;
+
+ return 0;
+}
+
+/*
+ * Absolute coordinates.
+ */
+void
+xclear(int x1, int y1, int x2, int y2)
+{
+ XftDrawRect(xw.draw,
+ &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
+ x1, y1, x2-x1, y2-y1);
+}
+
+void
+xhints(void)
+{
+ XClassHint class = {opt_name ? opt_name : termname,
+ opt_class ? opt_class : termname};
+ XWMHints wm = {.flags = InputHint, .input = 1};
+ XSizeHints *sizeh;
+
+ sizeh = XAllocSizeHints();
+
+ sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize;
+ sizeh->height = win.h;
+ sizeh->width = win.w;
+ sizeh->height_inc = win.ch;
+ sizeh->width_inc = win.cw;
+ sizeh->base_height = 2 * borderpx;
+ sizeh->base_width = 2 * borderpx;
+ sizeh->min_height = win.ch + 2 * borderpx;
+ sizeh->min_width = win.cw + 2 * borderpx;
+ if (xw.isfixed) {
+ sizeh->flags |= PMaxSize;
+ sizeh->min_width = sizeh->max_width = win.w;
+ sizeh->min_height = sizeh->max_height = win.h;
+ }
+ if (xw.gm & (XValue|YValue)) {
+ sizeh->flags |= USPosition | PWinGravity;
+ sizeh->x = xw.l;
+ sizeh->y = xw.t;
+ sizeh->win_gravity = xgeommasktogravity(xw.gm);
+ }
+
+ XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
+ &class);
+ XFree(sizeh);
+}
+
+int
+xgeommasktogravity(int mask)
+{
+ switch (mask & (XNegative|YNegative)) {
+ case 0:
+ return NorthWestGravity;
+ case XNegative:
+ return NorthEastGravity;
+ case YNegative:
+ return SouthWestGravity;
+ }
+
+ return SouthEastGravity;
+}
+
+int
+xloadfont(Font *f, FcPattern *pattern)
+{
+ FcPattern *configured;
+ FcPattern *match;
+ FcResult result;
+ XGlyphInfo extents;
+ int wantattr, haveattr;
+
+ /*
+ * Manually configure instead of calling XftMatchFont
+ * so that we can use the configured pattern for
+ * "missing glyph" lookups.
+ */
+ configured = FcPatternDuplicate(pattern);
+ if (!configured)
+ return 1;
+
+ FcConfigSubstitute(NULL, configured, FcMatchPattern);
+ XftDefaultSubstitute(xw.dpy, xw.scr, configured);
+
+ match = FcFontMatch(NULL, configured, &result);
+ if (!match) {
+ FcPatternDestroy(configured);
+ return 1;
+ }
+
+ if (!(f->match = XftFontOpenPattern(xw.dpy, match))) {
+ FcPatternDestroy(configured);
+ FcPatternDestroy(match);
+ return 1;
+ }
+
+ if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) ==
+ XftResultMatch)) {
+ /*
+ * Check if xft was unable to find a font with the appropriate
+ * slant but gave us one anyway. Try to mitigate.
+ */
+ if ((XftPatternGetInteger(f->match->pattern, "slant", 0,
+ &haveattr) != XftResultMatch) || haveattr < wantattr) {
+ f->badslant = 1;
+ fputs("font slant does not match\n", stderr);
+ }
+ }
+
+ if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) ==
+ XftResultMatch)) {
+ if ((XftPatternGetInteger(f->match->pattern, "weight", 0,
+ &haveattr) != XftResultMatch) || haveattr != wantattr) {
+ f->badweight = 1;
+ fputs("font weight does not match\n", stderr);
+ }
+ }
+
+ XftTextExtentsUtf8(xw.dpy, f->match,
+ (const FcChar8 *) ascii_printable,
+ strlen(ascii_printable), &extents);
+
+ f->set = NULL;
+ f->pattern = configured;
+
+ f->ascent = f->match->ascent;
+ f->descent = f->match->descent;
+ f->lbearing = 0;
+ f->rbearing = f->match->max_advance_width;
+
+ f->height = f->ascent + f->descent;
+ f->width = DIVCEIL(extents.xOff, strlen(ascii_printable));
+
+ return 0;
+}
+
+void
+xloadfonts(const char *fontstr, double fontsize)
+{
+ FcPattern *pattern;
+ double fontval;
+
+ if (fontstr[0] == '-')
+ pattern = XftXlfdParse(fontstr, False, False);
+ else
+ pattern = FcNameParse((const FcChar8 *)fontstr);
+
+ if (!pattern)
+ die("can't open font %s\n", fontstr);
+
+ if (fontsize > 1) {
+ FcPatternDel(pattern, FC_PIXEL_SIZE);
+ FcPatternDel(pattern, FC_SIZE);
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
+ usedfontsize = fontsize;
+ } else {
+ if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = fontval;
+ } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = -1;
+ } else {
+ /*
+ * Default font size is 12, if none given. This is to
+ * have a known usedfontsize value.
+ */
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
+ usedfontsize = 12;
+ }
+ defaultfontsize = usedfontsize;
+ }
+
+ if (xloadfont(&dc.font, pattern))
+ die("can't open font %s\n", fontstr);
+
+ if (usedfontsize < 0) {
+ FcPatternGetDouble(dc.font.match->pattern,
+ FC_PIXEL_SIZE, 0, &fontval);
+ usedfontsize = fontval;
+ if (fontsize == 0)
+ defaultfontsize = fontval;
+ }
+
+ /* Setting character width and height. */
+ win.cw = ceilf(dc.font.width * cwscale);
+ win.ch = ceilf(dc.font.height * chscale);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
+ if (xloadfont(&dc.ifont, pattern))
+ die("can't open font %s\n", fontstr);
+
+ FcPatternDel(pattern, FC_WEIGHT);
+ FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
+ if (xloadfont(&dc.ibfont, pattern))
+ die("can't open font %s\n", fontstr);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
+ if (xloadfont(&dc.bfont, pattern))
+ die("can't open font %s\n", fontstr);
+
+ FcPatternDestroy(pattern);
+}
+
+void
+xunloadfont(Font *f)
+{
+ XftFontClose(xw.dpy, f->match);
+ FcPatternDestroy(f->pattern);
+ if (f->set)
+ FcFontSetDestroy(f->set);
+}
+
+void
+xunloadfonts(void)
+{
+ /* Clear Harfbuzz font cache. */
+ hbunloadfonts();
+
+ /* Free the loaded fonts in the font cache. */
+ while (frclen > 0)
+ XftFontClose(xw.dpy, frc[--frclen].font);
+
+ xunloadfont(&dc.font);
+ xunloadfont(&dc.bfont);
+ xunloadfont(&dc.ifont);
+ xunloadfont(&dc.ibfont);
+}
+
+int
+ximopen(Display *dpy)
+{
+ XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy };
+ XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy };
+
+ xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
+ if (xw.ime.xim == NULL)
+ return 0;
+
+ if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL))
+ fprintf(stderr, "XSetIMValues: "
+ "Could not set XNDestroyCallback.\n");
+
+ xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
+ NULL);
+
+ if (xw.ime.xic == NULL) {
+ xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle,
+ XIMPreeditNothing | XIMStatusNothing,
+ XNClientWindow, xw.win,
+ XNDestroyCallback, &icdestroy,
+ NULL);
+ }
+ if (xw.ime.xic == NULL)
+ fprintf(stderr, "XCreateIC: Could not create input context.\n");
+
+ return 1;
+}
+
+void
+ximinstantiate(Display *dpy, XPointer client, XPointer call)
+{
+ if (ximopen(dpy))
+ XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
+ ximinstantiate, NULL);
+}
+
+void
+ximdestroy(XIM xim, XPointer client, XPointer call)
+{
+ xw.ime.xim = NULL;
+ XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
+ ximinstantiate, NULL);
+ XFree(xw.ime.spotlist);
+}
+
+int
+xicdestroy(XIC xim, XPointer client, XPointer call)
+{
+ xw.ime.xic = NULL;
+ return 1;
+}
+
+void
+xinit(int cols, int rows)
+{
+ XGCValues gcvalues;
+ Cursor cursor;
+ Window parent, root;
+ pid_t thispid = getpid();
+ XColor xmousefg, xmousebg;
+ XWindowAttributes attr;
+ XVisualInfo vis;
+
+ if (!(xw.dpy = XOpenDisplay(NULL)))
+ die("can't open display\n");
+ xw.scr = XDefaultScreen(xw.dpy);
+
+ if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
+ parent = XRootWindow(xw.dpy, xw.scr);
+ xw.depth = 32;
+ } else {
+ XGetWindowAttributes(xw.dpy, parent, &attr);
+ xw.depth = attr.depth;
+ }
+
+ XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
+ xw.vis = vis.visual;
+
+ /* font */
+ if (!FcInit())
+ die("could not init fontconfig.\n");
+
+ usedfont = (opt_font == NULL)? font : opt_font;
+ xloadfonts(usedfont, 0);
+
+ /* Backup default alpha value */
+ alpha_def = alpha;
+
+ /* colors */
+ xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
+ xloadcols();
+
+ /* adjust fixed window geometry */
+ win.w = 2 * borderpx + cols * win.cw;
+ win.h = 2 * borderpx + rows * win.ch;
+ if (xw.gm & XNegative)
+ xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
+ if (xw.gm & YNegative)
+ xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2;
+
+ /* Events */
+ xw.attrs.background_pixel = dc.col[defaultbg].pixel;
+ xw.attrs.border_pixel = dc.col[defaultbg].pixel;
+ xw.attrs.bit_gravity = NorthWestGravity;
+ xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask
+ | ExposureMask | VisibilityChangeMask | StructureNotifyMask
+ | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
+ xw.attrs.colormap = xw.cmap;
+
+ root = XRootWindow(xw.dpy, xw.scr);
+ xw.win = XCreateWindow(xw.dpy, root, xw.l, xw.t,
+ win.w, win.h, 0, xw.depth, InputOutput,
+ xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
+ | CWEventMask | CWColormap, &xw.attrs);
+ if (parent != root)
+ XReparentWindow(xw.dpy, xw.win, parent, xw.l, xw.t);
+
+ memset(&gcvalues, 0, sizeof(gcvalues));
+ gcvalues.graphics_exposures = False;
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
+ dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
+ XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
+ XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
+
+ /* font spec buffer */
+ xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec) * 4);
+
+ /* Xft rendering context */
+ xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
+
+ /* input methods */
+ if (!ximopen(xw.dpy)) {
+ XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
+ ximinstantiate, NULL);
+ }
+
+ /* white cursor, black outline */
+ cursor = XCreateFontCursor(xw.dpy, mouseshape);
+ XDefineCursor(xw.dpy, xw.win, cursor);
+
+ if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) {
+ xmousefg.red = 0xffff;
+ xmousefg.green = 0xffff;
+ xmousefg.blue = 0xffff;
+ }
+
+ if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) {
+ xmousebg.red = 0x0000;
+ xmousebg.green = 0x0000;
+ xmousebg.blue = 0x0000;
+ }
+
+ XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg);
+
+ xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
+ xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
+ xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
+ xw.netwmiconname = XInternAtom(xw.dpy, "_NET_WM_ICON_NAME", False);
+ XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
+
+ xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
+ XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
+ PropModeReplace, (uchar *)&thispid, 1);
+
+ win.mode = MODE_NUMLOCK;
+ resettitle();
+ xhints();
+ XMapWindow(xw.dpy, xw.win);
+ XSync(xw.dpy, False);
+
+ clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1);
+ clock_gettime(CLOCK_MONOTONIC, &xsel.tclick2);
+ xsel.primary = NULL;
+ xsel.clipboard = NULL;
+ xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
+ if (xsel.xtarget == None)
+ xsel.xtarget = XA_STRING;
+}
+
+void
+xresetfontsettings(ushort mode, Font **font, int *frcflags)
+{
+ *font = &dc.font;
+ if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) {
+ *font = &dc.ibfont;
+ *frcflags = FRC_ITALICBOLD;
+ } else if (mode & ATTR_ITALIC) {
+ *font = &dc.ifont;
+ *frcflags = FRC_ITALIC;
+ } else if (mode & ATTR_BOLD) {
+ *font = &dc.bfont;
+ *frcflags = FRC_BOLD;
+ }
+}
+
+int
+xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
+{
+ float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp;
+ ushort mode, prevmode = USHRT_MAX;
+ Font *font = &dc.font;
+ int frcflags = FRC_NORMAL;
+ float runewidth = win.cw;
+ Rune rune;
+ FT_UInt glyphidx;
+ FcResult fcres;
+ FcPattern *fcpattern, *fontpattern;
+ FcFontSet *fcsets[] = { NULL };
+ FcCharSet *fccharset;
+ int i, f, length = 0, start = 0, numspecs = 0;
+ float cluster_xp = xp, cluster_yp = yp;
+ HbTransformData shaped = { 0 };
+
+ /* Initial values. */
+ mode = prevmode = glyphs[0].mode & ~ATTR_WRAP;
+ xresetfontsettings(mode, &font, &frcflags);
+
+ for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
+ mode = glyphs[i].mode & ~ATTR_WRAP;
+
+ /* Skip dummy wide-character spacing. */
+ if (mode & ATTR_WDUMMY && i < (len - 1))
+ continue;
+
+ if (
+ prevmode != mode
+ || ATTRCMP(glyphs[start], glyphs[i])
+ || selected(x + i, y) != selected(x + start, y)
+ || i == (len - 1)
+ ) {
+ /* Handle 1-character wide segments and end of line */
+ length = i - start;
+ if (i == start) {
+ length = 1;
+ } else if (i == (len - 1)) {
+ length = (i - start + 1);
+ }
+
+ /* Shape the segment. */
+ hbtransform(&shaped, font->match, glyphs, start, length);
+ runewidth = win.cw * ((glyphs[start].mode & ATTR_WIDE) ? 2.0f : 1.0f);
+ cluster_xp = xp; cluster_yp = yp;
+ for (int code_idx = 0; code_idx < shaped.count; code_idx++) {
+ int idx = shaped.glyphs[code_idx].cluster;
+
+ if (glyphs[start + idx].mode & ATTR_WDUMMY)
+ continue;
+
+ /* Advance the drawing cursor if we've moved to a new cluster */
+ if (code_idx > 0 && idx != shaped.glyphs[code_idx - 1].cluster) {
+ xp += runewidth;
+ cluster_xp = xp;
+ cluster_yp = yp;
+ runewidth = win.cw * ((glyphs[start + idx].mode & ATTR_WIDE) ? 2.0f : 1.0f);
+ }
+
+ if (shaped.glyphs[code_idx].codepoint != 0) {
+ /* If symbol is found, put it into the specs. */
+ specs[numspecs].font = font->match;
+ specs[numspecs].glyph = shaped.glyphs[code_idx].codepoint;
+ specs[numspecs].x = cluster_xp + (short)(shaped.positions[code_idx].x_offset / 64.);
+ specs[numspecs].y = cluster_yp - (short)(shaped.positions[code_idx].y_offset / 64.);
+ cluster_xp += shaped.positions[code_idx].x_advance / 64.;
+ cluster_yp += shaped.positions[code_idx].y_advance / 64.;
+ numspecs++;
+ } else {
+ /* If it's not found, try to fetch it through the font cache. */
+ rune = glyphs[start + idx].u;
+ for (f = 0; f < frclen; f++) {
+ glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune);
+ /* Everything correct. */
+ if (glyphidx && frc[f].flags == frcflags)
+ break;
+ /* We got a default font for a not found glyph. */
+ if (!glyphidx && frc[f].flags == frcflags
+ && frc[f].unicodep == rune) {
+ break;
+ }
+ }
+
+ /* Nothing was found. Use fontconfig to find matching font. */
+ if (f >= frclen) {
+ if (!font->set)
+ font->set = FcFontSort(0, font->pattern,
+ 1, 0, &fcres);
+ fcsets[0] = font->set;
+
+ /*
+ * Nothing was found in the cache. Now use
+ * some dozen of Fontconfig calls to get the
+ * font for one single character.
+ *
+ * Xft and fontconfig are design failures.
+ */
+ fcpattern = FcPatternDuplicate(font->pattern);
+ fccharset = FcCharSetCreate();
+
+ FcCharSetAddChar(fccharset, rune);
+ FcPatternAddCharSet(fcpattern, FC_CHARSET,
+ fccharset);
+ FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
+
+ FcConfigSubstitute(0, fcpattern,
+ FcMatchPattern);
+ FcDefaultSubstitute(fcpattern);
+
+ fontpattern = FcFontSetMatch(0, fcsets, 1,
+ fcpattern, &fcres);
+
+ /* Allocate memory for the new cache entry. */
+ if (frclen >= frccap) {
+ frccap += 16;
+ frc = xrealloc(frc, frccap * sizeof(Fontcache));
+ }
+
+ frc[frclen].font = XftFontOpenPattern(xw.dpy,
+ fontpattern);
+ if (!frc[frclen].font)
+ die("XftFontOpenPattern failed seeking fallback font: %s\n",
+ strerror(errno));
+ frc[frclen].flags = frcflags;
+ frc[frclen].unicodep = rune;
+
+ glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune);
+
+ f = frclen;
+ frclen++;
+
+ FcPatternDestroy(fcpattern);
+ FcCharSetDestroy(fccharset);
+ }
+
+ specs[numspecs].font = frc[f].font;
+ specs[numspecs].glyph = glyphidx;
+ specs[numspecs].x = (short)xp;
+ specs[numspecs].y = (short)yp;
+ numspecs++;
+ }
+ }
+
+ /* Cleanup and get ready for next segment. */
+ hbcleanup(&shaped);
+ start = i;
+
+ /* Determine font for glyph if different from previous glyph. */
+ if (prevmode != mode) {
+ prevmode = mode;
+ xresetfontsettings(mode, &font, &frcflags);
+ yp = winy + font->ascent;
+ }
+ }
+ }
+
+ return numspecs;
+}
+
+void
+chgalpha(const Arg *arg)
+{
+ if (arg->f == -1.0f && alpha >= 0.1f)
+ alpha -= 0.1f;
+ else if (arg->f == 1.0f && alpha < 1.0f)
+ alpha += 0.1f;
+ else if (arg->f == 0.0f)
+ alpha = alpha_def;
+ else
+ return;
+
+ dc.col[defaultbg].color.alpha = (unsigned short)(0xFFFF * alpha);
+ /* Required to remove artifacting from borderpx */
+ cresize(0, 0);
+ redraw();
+}
+
+void
+xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int charlen)
+{
+ int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
+ width = charlen * win.cw;
+ Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
+ XRenderColor colfg, colbg;
+ XRectangle r;
+
+ /* Fallback on color display for attributes not supported by the font */
+ if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) {
+ if (dc.ibfont.badslant || dc.ibfont.badweight)
+ base.fg = defaultattr;
+ } else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) ||
+ (base.mode & ATTR_BOLD && dc.bfont.badweight)) {
+ base.fg = defaultattr;
+ }
+
+ if (IS_TRUECOL(base.fg)) {
+ colfg.alpha = 0xffff;
+ colfg.red = TRUERED(base.fg);
+ colfg.green = TRUEGREEN(base.fg);
+ colfg.blue = TRUEBLUE(base.fg);
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
+ fg = &truefg;
+ } else {
+ fg = &dc.col[base.fg];
+ }
+
+ if (IS_TRUECOL(base.bg)) {
+ colbg.alpha = 0xffff;
+ colbg.green = TRUEGREEN(base.bg);
+ colbg.red = TRUERED(base.bg);
+ colbg.blue = TRUEBLUE(base.bg);
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
+ bg = &truebg;
+ } else {
+ bg = &dc.col[base.bg];
+ }
+
+ /* Change basic system colors [0-7] to bright system colors [8-15] */
+ if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7))
+ fg = &dc.col[base.fg + 8];
+
+ if (IS_SET(MODE_REVERSE)) {
+ if (fg == &dc.col[defaultfg]) {
+ fg = &dc.col[defaultbg];
+ } else {
+ colfg.red = ~fg->color.red;
+ colfg.green = ~fg->color.green;
+ colfg.blue = ~fg->color.blue;
+ colfg.alpha = fg->color.alpha;
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
+ &revfg);
+ fg = &revfg;
+ }
+
+ if (bg == &dc.col[defaultbg]) {
+ bg = &dc.col[defaultfg];
+ } else {
+ colbg.red = ~bg->color.red;
+ colbg.green = ~bg->color.green;
+ colbg.blue = ~bg->color.blue;
+ colbg.alpha = bg->color.alpha;
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
+ &revbg);
+ bg = &revbg;
+ }
+ }
+
+ if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) {
+ colfg.red = fg->color.red / 2;
+ colfg.green = fg->color.green / 2;
+ colfg.blue = fg->color.blue / 2;
+ colfg.alpha = fg->color.alpha;
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
+ fg = &revfg;
+ }
+
+ if (base.mode & ATTR_REVERSE) {
+ temp = fg;
+ fg = bg;
+ bg = temp;
+ }
+
+ if (base.mode & ATTR_BLINK && win.mode & MODE_BLINK)
+ fg = bg;
+
+ if (base.mode & ATTR_INVISIBLE)
+ fg = bg;
+
+ /* Intelligent cleaning up of the borders. */
+ if (x == 0) {
+ xclear(0, (y == 0)? 0 : winy, borderpx,
+ winy + win.ch +
+ ((winy + win.ch >= borderpx + win.th)? win.h : 0));
+ }
+ if (winx + width >= borderpx + win.tw) {
+ xclear(winx + width, (y == 0)? 0 : winy, win.w,
+ ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
+ }
+ if (y == 0)
+ xclear(winx, 0, winx + width, borderpx);
+ if (winy + win.ch >= borderpx + win.th)
+ xclear(winx, winy + win.ch, winx + width, win.h);
+
+ /* Clean up the region we want to draw to. */
+ XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
+
+ /* Set the clip region because Xft is sometimes dirty. */
+ r.x = 0;
+ r.y = 0;
+ r.height = win.ch;
+ r.width = width;
+ XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
+
+ /* Render the glyphs. */
+ XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
+
+ /* Render underline and strikethrough. */
+ if (base.mode & ATTR_UNDERLINE) {
+ XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1,
+ width, 1);
+ }
+
+ if (base.mode & ATTR_STRUCK) {
+ XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3,
+ width, 1);
+ }
+
+ /* Reset clip to none. */
+ XftDrawSetClip(xw.draw, 0);
+}
+
+void
+xdrawglyph(Glyph g, int x, int y)
+{
+ int numspecs;
+ XftGlyphFontSpec *specs = xw.specbuf;
+
+ numspecs = xmakeglyphfontspecs(specs, &g, 1, x, y);
+ xdrawglyphfontspecs(specs, g, numspecs, x, y, (g.mode & ATTR_WIDE) ? 2 : 1);
+}
+
+void
+xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len)
+{
+ Color drawcol;
+
+ /* remove the old cursor */
+ if (selected(ox, oy))
+ og.mode ^= ATTR_REVERSE;
+
+ /* Redraw the line where cursor was previously.
+ * It will restore the ligatures broken by the cursor. */
+ xdrawline(line, 0, oy, len);
+
+ if (IS_SET(MODE_HIDE))
+ return;
+
+ /*
+ * Select the right color for the right mode.
+ */
+ g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE;
+
+ if (IS_SET(MODE_REVERSE)) {
+ g.mode |= ATTR_REVERSE;
+ g.bg = defaultfg;
+ if (selected(cx, cy)) {
+ drawcol = dc.col[defaultcs];
+ g.fg = defaultrcs;
+ } else {
+ drawcol = dc.col[defaultrcs];
+ g.fg = defaultcs;
+ }
+ } else {
+ if (selected(cx, cy)) {
+ g.fg = defaultfg;
+ g.bg = defaultrcs;
+ } else {
+ g.fg = defaultbg;
+ g.bg = defaultcs;
+ }
+ drawcol = dc.col[g.bg];
+ }
+
+ /* draw the new one */
+ if (IS_SET(MODE_FOCUSED)) {
+ switch (win.cursor) {
+ case 7: /* st extension */
+ g.u = 0x2603; /* snowman (U+2603) */
+ /* FALLTHROUGH */
+ case 0: /* Blinking Block */
+ case 1: /* Blinking Block (Default) */
+ case 2: /* Steady Block */
+ xdrawglyph(g, cx, cy);
+ break;
+ case 3: /* Blinking Underline */
+ case 4: /* Steady Underline */
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + cx * win.cw,
+ borderpx + (cy + 1) * win.ch - \
+ cursorthickness,
+ win.cw, cursorthickness);
+ break;
+ case 5: /* Blinking bar */
+ case 6: /* Steady bar */
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + cx * win.cw,
+ borderpx + cy * win.ch,
+ cursorthickness, win.ch);
+ break;
+ }
+ } else {
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + cx * win.cw,
+ borderpx + cy * win.ch,
+ win.cw - 1, 1);
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + cx * win.cw,
+ borderpx + cy * win.ch,
+ 1, win.ch - 1);
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + (cx + 1) * win.cw - 1,
+ borderpx + cy * win.ch,
+ 1, win.ch - 1);
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + cx * win.cw,
+ borderpx + (cy + 1) * win.ch - 1,
+ win.cw, 1);
+ }
+}
+
+void
+xsetenv(void)
+{
+ char buf[sizeof(long) * 8 + 1];
+
+ snprintf(buf, sizeof(buf), "%lu", xw.win);
+ setenv("WINDOWID", buf, 1);
+}
+
+void
+xseticontitle(char *p)
+{
+ XTextProperty prop;
+ DEFAULT(p, opt_title);
+
+ if (p[0] == '\0')
+ p = opt_title;
+
+ if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
+ &prop) != Success)
+ return;
+ XSetWMIconName(xw.dpy, xw.win, &prop);
+ XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmiconname);
+ XFree(prop.value);
+}
+
+void
+xsettitle(char *p)
+{
+ XTextProperty prop;
+ DEFAULT(p, opt_title);
+
+ if (p[0] == '\0')
+ p = opt_title;
+
+ if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
+ &prop) != Success)
+ return;
+ XSetWMName(xw.dpy, xw.win, &prop);
+ XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
+ XFree(prop.value);
+}
+
+int
+xstartdraw(void)
+{
+ return IS_SET(MODE_VISIBLE);
+}
+
+void
+xdrawline(Line line, int x1, int y1, int x2)
+{
+ int i, x, ox, numspecs;
+ Glyph base, new;
+ XftGlyphFontSpec *specs = xw.specbuf;
+
+ i = ox = 0;
+ for (x = x1; x < x2; x++) {
+ new = line[x];
+ if (new.mode == ATTR_WDUMMY)
+ continue;
+ if (selected(x, y1))
+ new.mode ^= ATTR_REVERSE;
+ if ((i > 0) && ATTRCMP(base, new)) {
+ numspecs = xmakeglyphfontspecs(specs, &line[ox], x - ox, ox, y1);
+ xdrawglyphfontspecs(specs, base, numspecs, ox, y1, x - ox);
+ i = 0;
+ }
+ if (i == 0) {
+ ox = x;
+ base = new;
+ }
+ i++;
+ }
+ if (i > 0) {
+ numspecs = xmakeglyphfontspecs(specs, &line[ox], x2 - ox, ox, y1);
+ xdrawglyphfontspecs(specs, base, numspecs, ox, y1, x2 - ox);
+ }
+}
+
+void
+xfinishdraw(void)
+{
+ XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w,
+ win.h, 0, 0);
+ XSetForeground(xw.dpy, dc.gc,
+ dc.col[IS_SET(MODE_REVERSE)?
+ defaultfg : defaultbg].pixel);
+}
+
+void
+xximspot(int x, int y)
+{
+ if (xw.ime.xic == NULL)
+ return;
+
+ xw.ime.spot.x = borderpx + x * win.cw;
+ xw.ime.spot.y = borderpx + (y + 1) * win.ch;
+
+ XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL);
+}
+
+void
+expose(XEvent *ev)
+{
+ redraw();
+}
+
+void
+visibility(XEvent *ev)
+{
+ XVisibilityEvent *e = &ev->xvisibility;
+
+ MODBIT(win.mode, e->state != VisibilityFullyObscured, MODE_VISIBLE);
+}
+
+void
+unmap(XEvent *ev)
+{
+ win.mode &= ~MODE_VISIBLE;
+}
+
+void
+xsetpointermotion(int set)
+{
+ MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
+ XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
+}
+
+void
+xsetmode(int set, unsigned int flags)
+{
+ int mode = win.mode;
+ MODBIT(win.mode, set, flags);
+ if ((win.mode & MODE_REVERSE) != (mode & MODE_REVERSE))
+ redraw();
+}
+
+int
+xsetcursor(int cursor)
+{
+ if (!BETWEEN(cursor, 0, 7)) /* 7: st extension */
+ return 1;
+ win.cursor = cursor;
+ return 0;
+}
+
+void
+xseturgency(int add)
+{
+ XWMHints *h = XGetWMHints(xw.dpy, xw.win);
+
+ MODBIT(h->flags, add, XUrgencyHint);
+ XSetWMHints(xw.dpy, xw.win, h);
+ XFree(h);
+}
+
+void
+xbell(void)
+{
+ if (!(IS_SET(MODE_FOCUSED)))
+ xseturgency(1);
+ if (bellvolume)
+ XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
+}
+
+void
+focus(XEvent *ev)
+{
+ XFocusChangeEvent *e = &ev->xfocus;
+
+ if (e->mode == NotifyGrab)
+ return;
+
+ if (ev->type == FocusIn) {
+ if (xw.ime.xic)
+ XSetICFocus(xw.ime.xic);
+ win.mode |= MODE_FOCUSED;
+ xseturgency(0);
+ if (IS_SET(MODE_FOCUS))
+ ttywrite("\033[I", 3, 0);
+ } else {
+ if (xw.ime.xic)
+ XUnsetICFocus(xw.ime.xic);
+ win.mode &= ~MODE_FOCUSED;
+ if (IS_SET(MODE_FOCUS))
+ ttywrite("\033[O", 3, 0);
+ }
+}
+
+int
+match(uint mask, uint state)
+{
+ return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
+}
+
+char*
+kmap(KeySym k, uint state)
+{
+ Key *kp;
+ int i;
+
+ /* Check for mapped keys out of X11 function keys. */
+ for (i = 0; i < LEN(mappedkeys); i++) {
+ if (mappedkeys[i] == k)
+ break;
+ }
+ if (i == LEN(mappedkeys)) {
+ if ((k & 0xFFFF) < 0xFD00)
+ return NULL;
+ }
+
+ for (kp = key; kp < key + LEN(key); kp++) {
+ if (kp->k != k)
+ continue;
+
+ if (!match(kp->mask, state))
+ continue;
+
+ if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
+ continue;
+ if (IS_SET(MODE_NUMLOCK) && kp->appkey == 2)
+ continue;
+
+ if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
+ continue;
+
+ return kp->s;
+ }
+
+ return NULL;
+}
+
+void
+kpress(XEvent *ev)
+{
+ XKeyEvent *e = &ev->xkey;
+ KeySym ksym = NoSymbol;
+ char buf[64], *customkey;
+ int len;
+ Rune c;
+ Status status;
+ Shortcut *bp;
+
+ if (IS_SET(MODE_KBDLOCK))
+ return;
+
+ if (xw.ime.xic) {
+ len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
+ if (status == XBufferOverflow)
+ return;
+ } else {
+ len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
+ }
+ /* 1. shortcuts */
+ for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
+ if (ksym == bp->keysym && match(bp->mod, e->state)) {
+ bp->func(&(bp->arg));
+ return;
+ }
+ }
+
+ /* 2. custom keys from config.h */
+ if ((customkey = kmap(ksym, e->state))) {
+ ttywrite(customkey, strlen(customkey), 1);
+ return;
+ }
+
+ /* 3. composed string from input method */
+ if (len == 0)
+ return;
+ if (len == 1 && e->state & Mod1Mask) {
+ if (IS_SET(MODE_8BIT)) {
+ if (*buf < 0177) {
+ c = *buf | 0x80;
+ len = utf8encode(c, buf);
+ }
+ } else {
+ buf[1] = buf[0];
+ buf[0] = '\033';
+ len = 2;
+ }
+ }
+ ttywrite(buf, len, 1);
+}
+
+void
+cmessage(XEvent *e)
+{
+ /*
+ * See xembed specs
+ * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
+ */
+ if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
+ if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
+ win.mode |= MODE_FOCUSED;
+ xseturgency(0);
+ } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
+ win.mode &= ~MODE_FOCUSED;
+ }
+ } else if (e->xclient.data.l[0] == xw.wmdeletewin) {
+ ttyhangup();
+ exit(0);
+ }
+}
+
+void
+resize(XEvent *e)
+{
+ if (e->xconfigure.width == win.w && e->xconfigure.height == win.h)
+ return;
+
+ cresize(e->xconfigure.width, e->xconfigure.height);
+}
+
+void
+run(void)
+{
+ XEvent ev;
+ int w = win.w, h = win.h;
+ fd_set rfd;
+ int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing;
+ struct timespec seltv, *tv, now, lastblink, trigger;
+ double timeout;
+
+ /* Waiting for window mapping */
+ do {
+ XNextEvent(xw.dpy, &ev);
+ /*
+ * This XFilterEvent call is required because of XOpenIM. It
+ * does filter out the key event and some client message for
+ * the input method too.
+ */
+ if (XFilterEvent(&ev, None))
+ continue;
+ if (ev.type == ConfigureNotify) {
+ w = ev.xconfigure.width;
+ h = ev.xconfigure.height;
+ }
+ } while (ev.type != MapNotify);
+
+ ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd);
+ cresize(w, h);
+
+ for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) {
+ FD_ZERO(&rfd);
+ FD_SET(ttyfd, &rfd);
+ FD_SET(xfd, &rfd);
+
+ if (XPending(xw.dpy))
+ timeout = 0; /* existing events might not set xfd */
+
+ seltv.tv_sec = timeout / 1E3;
+ seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec);
+ tv = timeout >= 0 ? &seltv : NULL;
+
+ if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
+ if (errno == EINTR)
+ continue;
+ die("select failed: %s\n", strerror(errno));
+ }
+ clock_gettime(CLOCK_MONOTONIC, &now);
+
+ if (FD_ISSET(ttyfd, &rfd))
+ ttyread();
+
+ xev = 0;
+ while (XPending(xw.dpy)) {
+ xev = 1;
+ XNextEvent(xw.dpy, &ev);
+ if (XFilterEvent(&ev, None))
+ continue;
+ if (handler[ev.type])
+ (handler[ev.type])(&ev);
+ }
+
+ /*
+ * To reduce flicker and tearing, when new content or event
+ * triggers drawing, we first wait a bit to ensure we got
+ * everything, and if nothing new arrives - we draw.
+ * We start with trying to wait minlatency ms. If more content
+ * arrives sooner, we retry with shorter and shorter periods,
+ * and eventually draw even without idle after maxlatency ms.
+ * Typically this results in low latency while interacting,
+ * maximum latency intervals during `cat huge.txt`, and perfect
+ * sync with periodic updates from animations/key-repeats/etc.
+ */
+ if (FD_ISSET(ttyfd, &rfd) || xev) {
+ if (!drawing) {
+ trigger = now;
+ drawing = 1;
+ }
+ timeout = (maxlatency - TIMEDIFF(now, trigger)) \
+ / maxlatency * minlatency;
+ if (timeout > 0)
+ continue; /* we have time, try to find idle */
+ }
+
+ /* idle detected or maxlatency exhausted -> draw */
+ timeout = -1;
+ if (blinktimeout && tattrset(ATTR_BLINK)) {
+ timeout = blinktimeout - TIMEDIFF(now, lastblink);
+ if (timeout <= 0) {
+ if (-timeout > blinktimeout) /* start visible */
+ win.mode |= MODE_BLINK;
+ win.mode ^= MODE_BLINK;
+ tsetdirtattr(ATTR_BLINK);
+ lastblink = now;
+ timeout = blinktimeout;
+ }
+ }
+
+ draw();
+ XFlush(xw.dpy);
+ drawing = 0;
+ }
+}
+
+
+#define XRESOURCE_LOAD_META(NAME) \
+ if(!XrmGetResource(xrdb, "st." NAME, "st." NAME, &type, &ret)) \
+ XrmGetResource(xrdb, "*." NAME, "*." NAME, &type, &ret); \
+ if (ret.addr != NULL && !strncmp("String", type, 64))
+
+#define XRESOURCE_LOAD_STRING(NAME, DST) \
+ XRESOURCE_LOAD_META(NAME) \
+ DST = ret.addr;
+
+#define XRESOURCE_LOAD_CHAR(NAME, DST) \
+ XRESOURCE_LOAD_META(NAME) \
+ DST = ret.addr[0];
+
+#define XRESOURCE_LOAD_INTEGER(NAME, DST) \
+ XRESOURCE_LOAD_META(NAME) \
+ DST = strtoul(ret.addr, NULL, 10);
+
+#define XRESOURCE_LOAD_FLOAT(NAME, DST) \
+ XRESOURCE_LOAD_META(NAME) \
+ DST = strtof(ret.addr, NULL);
+
+void
+xrdb_load(void)
+{
+ /* XXX */
+ char *xrm;
+ char *type;
+ XrmDatabase xrdb;
+ XrmValue ret;
+ Display *dpy;
+
+ if(!(dpy = XOpenDisplay(NULL)))
+ die("Can't open display\n");
+
+ XrmInitialize();
+ xrm = XResourceManagerString(dpy);
+
+ if (xrm != NULL) {
+ xrdb = XrmGetStringDatabase(xrm);
+
+ /* handling colors here without macros to do via loop. */
+ int i = 0;
+ char loadValue[12] = "";
+ for (i = 0; i < 256; i++)
+ {
+ sprintf(loadValue, "%s%d", "st.color", i);
+
+ if(!XrmGetResource(xrdb, loadValue, loadValue, &type, &ret))
+ {
+ sprintf(loadValue, "%s%d", "*.color", i);
+ if (!XrmGetResource(xrdb, loadValue, loadValue, &type, &ret))
+ /* reset if not found (unless in range for defaults). */
+ if (i > 15)
+ colorname[i] = NULL;
+ }
+
+ if (ret.addr != NULL && !strncmp("String", type, 64))
+ colorname[i] = ret.addr;
+ }
+
+ XRESOURCE_LOAD_STRING("foreground", colorname[defaultfg]);
+ XRESOURCE_LOAD_STRING("background", colorname[defaultbg]);
+ XRESOURCE_LOAD_STRING("cursorColor", colorname[defaultcs])
+ else {
+ // this looks confusing because we are chaining off of the if
+ // in the macro. probably we should be wrapping everything blocks
+ // so this isn't possible...
+ defaultcs = defaultfg;
+ }
+ XRESOURCE_LOAD_STRING("reverse-cursor", colorname[defaultrcs])
+ else {
+ // see above.
+ defaultrcs = defaultbg;
+ }
+
+ XRESOURCE_LOAD_STRING("font", font);
+ XRESOURCE_LOAD_STRING("termname", termname);
+
+ XRESOURCE_LOAD_INTEGER("blinktimeout", blinktimeout);
+ XRESOURCE_LOAD_INTEGER("bellvolume", bellvolume);
+ XRESOURCE_LOAD_INTEGER("borderpx", borderpx);
+ XRESOURCE_LOAD_INTEGER("cursorshape", cursorshape);
+
+ XRESOURCE_LOAD_FLOAT("cwscale", cwscale);
+ XRESOURCE_LOAD_FLOAT("chscale", chscale);
+ }
+ XFlush(dpy);
+}
+
+void
+reload(int sig)
+{
+ xrdb_load();
+
+ /* colors, fonts */
+ xloadcols();
+ xunloadfonts();
+ xloadfonts(font, 0);
+
+ /* pretend the window just got resized */
+ cresize(win.w, win.h);
+
+ redraw();
+
+ /* triggers re-render if we're visible. */
+ ttywrite("\033[O", 3, 1);
+
+ signal(SIGUSR1, reload);
+}
+
+
+void
+usage(void)
+{
+ die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]"
+ " [-n name] [-o file]\n"
+ " [-T title] [-t title] [-w windowid]"
+ " [[-e] command [args ...]]\n"
+ " %s [-aiv] [-c class] [-f font] [-g geometry]"
+ " [-n name] [-o file]\n"
+ " [-T title] [-t title] [-w windowid] -l line"
+ " [stty_args ...]\n", argv0, argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+ xw.l = xw.t = 0;
+ xw.isfixed = False;
+ xsetcursor(cursorshape);
+
+ ARGBEGIN {
+ case 'a':
+ allowaltscreen = 0;
+ break;
+ case 'A':
+ opt_alpha = EARGF(usage());
+ break;
+ case 'c':
+ opt_class = EARGF(usage());
+ break;
+ case 'e':
+ if (argc > 0)
+ --argc, ++argv;
+ goto run;
+ case 'f':
+ opt_font = EARGF(usage());
+ break;
+ case 'g':
+ xw.gm = XParseGeometry(EARGF(usage()),
+ &xw.l, &xw.t, &cols, &rows);
+ break;
+ case 'i':
+ xw.isfixed = 1;
+ break;
+ case 'o':
+ opt_io = EARGF(usage());
+ break;
+ case 'l':
+ opt_line = EARGF(usage());
+ break;
+ case 'n':
+ opt_name = EARGF(usage());
+ break;
+ case 't':
+ case 'T':
+ opt_title = EARGF(usage());
+ break;
+ case 'w':
+ opt_embed = EARGF(usage());
+ break;
+ case 'v':
+ die("%s " VERSION "\n", argv0);
+ break;
+ default:
+ usage();
+ } ARGEND;
+
+run:
+ if (argc > 0) /* eat all remaining arguments */
+ opt_cmd = argv;
+
+ if (!opt_title)
+ opt_title = (opt_line || !opt_cmd) ? "st" : opt_cmd[0];
+
+ setlocale(LC_CTYPE, "");
+ XSetLocaleModifiers("");
+ xrdb_load();
+ signal(SIGUSR1, reload);
+ cols = MAX(cols, 1);
+ rows = MAX(rows, 1);
+ tnew(cols, rows);
+ xinit(cols, rows);
+ xsetenv();
+ selinit();
+ run();
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.51.0) at 2026-07-09 13:28:46 +0000