Commit Diff


commit - cb92cee1a918e8c59ac08de7ea4c0f70111b25ce
commit + c1a3325d97c3e8f57834c1487459c88d794bfbc3
blob - /dev/null
blob + 5e56e040ec0902e58df8573adaec65c5da6e9304 (mode 644)
--- /dev/null
+++ .gitignore
@@ -0,0 +1 @@
+/bin
blob - /dev/null
blob + 2ff3a0146d3ed0e7223ba56293c873fa5d9e8fc1 (mode 644)
--- /dev/null
+++ Makefile
@@ -0,0 +1,54 @@
+include config.mk
+
+SRC_DWM		= dwm/dwm.c dwm/drw.c dwm/util.c
+HDR_DWM		= dwm/drw.h dwm/util.h dwm/config.h
+
+SRC_ST		= st/st.c st/x.c
+HDR_ST		= st/arg.h st/st.h st/win.h st/config.h
+
+SRC_DMENU	= dmenu/dmenu.c dmenu/drw.c dmenu/util.c
+HDR_DMENU	= dmenu/arg.h dmenu/config.h dmenu/drw.h dmenu/util.h
+
+SRC_STEST	= dmenu/stest.c
+HDR_STEST	= ${HDR_DMENU}
+
+MAN		= dwm/dwm.1 st/st.1 dmenu/dmenu.1 dmenu/stest.1
+
+all: bin/dwm bin/st bin/bedstatus bin/dmenu bin/stest
+
+clean:
+	rm -rf bin
+
+install:
+	mkdir -p ${DESTDIR}${PREFIX}/bin ${DESTDIR}${MANPREFIX}/man1 ${DESTDIR}${SCRIPTDIR}
+	cp -f bin/* ${DESTDIR}${PREFIX}/bin/
+	for f in scripts/*; do										\
+		sed 's#@PREFIX@#${PREFIX}#g; s#@SCRIPTS@#${SCRIPTDIR}#' < $$f 				\
+		> ${DESTDIR}${SCRIPTDIR}/$$(basename $$f);						\
+		chmod +x ${DESTDIR}${SCRIPTDIR}/$$(basename $$f);					\
+	done
+	for f in ${MAN}; do										\
+		sed 's/VERSION/${VERSION}/g' < $$f > ${DESTDIR}${MANPREFIX}/man1/$$(basename "$$f");	\
+	done
+
+bin/dwm: ${SRC_DWM} ${HDR_DWM}
+	@mkdir -p bin
+	${CC} -o $@ ${SRC_DWM} ${CFLAGS} `pkg-config --cflags --libs fontconfig freetype2 x11 xft xinerama`
+
+bin/st: ${SRC_ST} ${HDR_ST}
+	@mkdir -p bin
+	${CC} -o $@ ${SRC_ST} ${CFLAGS} `pkg-config --cflags --libs fontconfig freetype2 x11 xft xrender` -lm -lutil
+
+bin/bedstatus: bedstatus/bedstatus.c
+	@mkdir -p bin
+	${CC} -o $@ bedstatus/bedstatus.c ${CFLAGS} `pkg-config --cflags --libs x11`
+
+bin/dmenu: ${SRC_DMENU} ${HDR_DMENU}
+	@mkdir -p bin
+	${CC} -o $@ ${SRC_DMENU} ${CFLAGS} `pkg-config --cflags --libs fontconfig freetype2 x11 xft xinerama` -lm
+
+bin/stest: ${SRC_STEST} ${HDR_STEST}
+	@mkdir -p bin
+	${CC} -o $@ ${SRC_STEST} ${CFLAGS}
+
+.PHONY: all clean install
blob - /dev/null
blob + a13fa99cb8b0f923d1c32629e5f0907f002f7524 (mode 644)
--- /dev/null
+++ TODO
@@ -0,0 +1,13 @@
+# Import
+- dotfiles
+- surf
+- tabbed
+- xbgcd
+- slock
+- nsxiv
+
+# Fix
+- dwm: XKeycodeToKeysum
+
+# Refactor
+- split common code into a library
blob - /dev/null
blob + f288702d2fa16d3cdf0035b15a9fcbc552cd88e7 (mode 644)
--- /dev/null
+++ bedstatus/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
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+
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+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
blob - /dev/null
blob + 7fb2ef64a403a478246f315d541d5cccaa4512c1 (mode 644)
--- /dev/null
+++ bedstatus/bedstatus.c
@@ -0,0 +1,341 @@
+#include <sys/types.h>
+#include <machine/apmvar.h>
+#include <sys/signal.h>
+#include <sys/sched.h>
+#include <sys/sysctl.h>
+#include <sys/ioctl.h>
+#include <sys/sensors.h>
+#include <X11/Xlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <time.h>
+#include <err.h>
+
+#define MAXSENSORS 16
+#define CPUSPEEDHISTLEN 30
+
+static int power_sensors[MAXSENSORS];
+static int cputemp_sensor = -1;
+static int num_power_sensors = 0;
+
+struct cpu_usage {
+	struct cpustats new;
+	struct cpustats old;
+	struct cpustats diffs;
+};
+
+static int num_cpu (void)
+{
+	const int mib[] = { CTL_HW, HW_NCPU };
+	int ncpu = 0;
+	size_t size = sizeof ncpu;
+	
+	if (sysctl (mib, 2, &ncpu, &size, NULL, 0) < 0)
+		return 1;
+
+	return ncpu;
+}
+
+static int64_t percentages (struct cpustats *out, struct cpu_usage *cpu)
+{
+	int64_t total_change = 0;
+
+	for (int i = 0; i < 6; ++i) {
+		int64_t change = cpu->new.cs_time[i] - cpu->old.cs_time[i];
+		if (change < 0)
+			change = INT64_MAX - cpu->old.cs_time[i] - cpu->new.cs_time[i];
+
+		cpu->diffs.cs_time[i] = change;
+		total_change += change;
+		cpu->old.cs_time[i] = cpu->new.cs_time[i];
+	}
+
+	if (total_change == 0)
+		total_change = 1;
+	
+	for (int i = 0; i < 6; ++i) {
+		out->cs_time[i] = (cpu->diffs.cs_time[i] * 1000 + total_change / 2) / total_change;
+	}
+
+	return total_change;
+}
+
+static int cpuspeed (void)
+{
+	static int history[CPUSPEEDHISTLEN];
+	const int mib[2] = { CTL_HW, HW_CPUSPEED };
+	int speed, sum = 0;
+	size_t len = sizeof speed;
+
+	if (sysctl (mib, 2, &speed, &len, NULL, 0) == -1)
+		return -1;
+
+	memmove (history + 1, history, (CPUSPEEDHISTLEN - 1) * sizeof *history);
+	history[0] = speed;
+
+	for (int i = 0; i < CPUSPEEDHISTLEN; ++i)
+		sum += history[i];
+
+	return sum / CPUSPEEDHISTLEN;
+}
+
+static int64_t read_sensor (int id, int type, int n)
+{
+	const int mib[5] = { CTL_HW, HW_SENSORS, id, type, n };
+	struct sensor sensor;
+	size_t len = sizeof sensor;
+	int ret;
+
+	ret = sysctl (mib, 5, &sensor, &len, NULL, 0);
+
+	return (ret == -1 || sensor.status & SENSOR_FINVALID) ? -1 : sensor.value;
+}
+
+static const char *cpu (int ncpu, struct cpu_usage *cpus)
+{
+	static char buffer[64];
+	uint64_t sum = 0;
+	int64_t temp;
+	int usage, speed;
+
+	for (int i = 0; i < ncpu; ++i) {
+		const int mib[] = { CTL_KERN, KERN_CPUSTATS, i };
+		struct cpustats tmp;
+		size_t size = sizeof tmp;
+
+		if (sysctl (mib, 3, &cpus[i].new, &size, NULL, 0) < 0)
+			continue;
+
+		percentages (&tmp, &cpus[i]);
+		sum += 1000 - tmp.cs_time[5];
+	}
+
+	usage = sum / ncpu / 10;
+	speed = cpuspeed ();
+	temp = cputemp_sensor != -1 ? read_sensor (cputemp_sensor, SENSOR_TEMP, 0) : -1;
+
+	if (temp != -1) {
+		temp = (temp - 273150000) / 1000000;
+		snprintf (buffer, sizeof buffer, "%d%% (%d MHz/%d°C)", (int)usage, speed, (int)temp);
+	} else {
+		snprintf (buffer, sizeof buffer, "%d%% (%d MHz)", (int)usage, speed);
+	}
+	return buffer;
+}
+
+static const char *ram (void)
+{
+	struct unit {
+		const char *s;
+		unsigned long long u;
+	} units[] = {
+		{ "PiB",	1ull << 50 },
+		{ "TiB",	1ull << 40 },
+		{ "GiB",	1ull << 30 },
+		{ "MiB",	1ull << 20 },
+		{ "KiB",	1ull << 10 },
+		{ NULL,		0 },
+	};
+	const int mib[] = { CTL_VM, VM_UVMEXP };
+	struct uvmexp uvmexp;
+	size_t size = sizeof uvmexp;
+	uint64_t bytes;
+	static char buffer[10];
+
+	if (sysctl (mib, 2, &uvmexp, &size, NULL, 0) < 0)
+		return "N/A";
+
+	bytes = ((uint64_t)uvmexp.active << (uvmexp.pageshift - 10)) * 1024;
+
+	for (const struct unit *u = units; u->s != NULL; ++u) {
+		if (bytes < u->u)
+			continue;
+
+		const unsigned raw = bytes * 100 / u->u;
+
+		if (raw >= 10000) {
+			snprintf (buffer, sizeof buffer, "%u %s", raw / 100, u->s);
+		} else if (raw >= 1000) {
+			snprintf (buffer, sizeof buffer, "%u.%u %s", raw / 100, raw / 10 % 10, u->s);
+		} else {
+			snprintf (buffer, sizeof buffer, "%u.%02u %s", raw / 100, raw % 100, u->s);
+		}
+		return buffer;
+	}
+	snprintf (buffer, sizeof buffer, "%u B", (unsigned)bytes);
+	return buffer;
+}
+
+static void bat (int fd, const char **bat_sym, unsigned *bat_perc, const char **bat_time)
+{
+	static char buffer[32];
+	struct apm_power_info info;
+
+	if (fd < 0 || ioctl (fd, APM_IOC_GETPOWER, &info) != 0) {
+		*bat_sym = "N/A";
+		*bat_perc = 0;
+		*bat_time = "N/A";
+		return;
+	}
+
+	*bat_perc = info.battery_life;
+
+	if (info.minutes_left != (u_int)-1) {
+		size_t pos = 0;
+		unsigned minutes = info.minutes_left;
+		const static struct unit {
+			char c;
+			unsigned v;
+		} units[] = {
+			{ .c = 'd', 24 * 60 },
+			{ .c = 'h',      60 },
+			{ .c = 'm',       1 },
+			{ .c = '\0',      0 },
+		};
+
+		for (size_t i = 0; units[i].v != 0; ++i) {
+			const struct unit u = units[i];
+			if (minutes >= u.v) {
+				pos += snprintf (buffer + pos, sizeof buffer - pos, "%u%c", minutes / u.v, u.c);
+				minutes %= u.v;
+			}
+		}
+		buffer[pos] = '\0';
+		*bat_time = buffer;
+	} else {
+		*bat_time = "N/A";
+	}
+
+	switch (info.ac_state) {
+	case APM_AC_OFF:
+	case APM_AC_UNKNOWN:
+	case APM_AC_BACKUP:
+		if (info.battery_life < 25) {
+			*bat_sym = "\uf244";
+		} else if (info.battery_life < 50) {
+			*bat_sym = "\uf243";
+		} else if (info.battery_life < 75) {
+			*bat_sym = "\uf242";
+		} else if (info.battery_life < 99) {
+			*bat_sym = "\uf241";
+		} else {
+			*bat_sym = "\uf240";
+		}
+		break;
+	case APM_AC_ON:
+		*bat_sym = "\uf5e7";
+		break;
+	}
+}
+
+static void find_sensors (void)
+{
+	for (int i = 0; i < MAXSENSORS; ++i) {
+		const int mib[3] = { CTL_HW, HW_SENSORS, i };
+		struct sensordev dev;
+		size_t sdlen = sizeof dev;
+
+		if (sysctl (mib, 3, &dev, &sdlen, NULL, 0) == -1)
+			continue;
+
+		if (dev.maxnumt[SENSOR_WATTS] > 0) {
+			power_sensors[num_power_sensors++] = i;
+		}
+
+		if (dev.maxnumt[SENSOR_TEMP] > 0
+		&& memcmp (dev.xname, "cpu", 3) == 0
+		&& cputemp_sensor == -1) {
+			cputemp_sensor = i;
+		}
+	}
+}
+
+static const char *power (void)
+{
+	static char power[32];
+	int64_t total = 0;
+
+	if (num_power_sensors == 0)
+		return "";
+
+	for (int i = 0; i < num_power_sensors; ++i) {
+		const int mib[5] = { CTL_HW, HW_SENSORS, power_sensors[i], SENSOR_WATTS, 0 };
+		struct sensor sensor;
+		size_t slen = sizeof sensor;
+
+		if (sysctl (mib, 5, &sensor, &slen, NULL, 0) == -1)
+			continue;
+
+		if (sensor.flags & SENSOR_FINVALID)
+			continue;
+
+		total += sensor.value;
+	}
+
+	const int sub = total / 10000;
+	snprintf (power, sizeof power, "/%d.%02uW", sub / 100, sub % 100);
+	return power;
+} 
+
+int main (int argc, char *argv[])
+{
+	int ncpu;
+	struct cpu_usage *cpus;
+	unsigned long root;
+	char status[256];
+	Display *dpy;
+	int fd_apm, screen;
+
+	(void)argv;
+
+	if (argc != 1) {
+		puts ("bedstatus-" VERSION);
+		return 1;
+	}
+
+	dpy = XOpenDisplay (NULL);
+	if (dpy == NULL)
+		errx (1, "unable to open display");
+
+	screen = XDefaultScreen (dpy);
+	root = XRootWindow (dpy, screen);
+
+	ncpu = num_cpu ();
+	cpus = calloc (ncpu, sizeof (struct cpu_usage));
+	fd_apm = open ("/dev/apm", O_RDONLY);
+	find_sensors ();
+
+	while (1) {
+		const char *bat_sym, *bat_time;
+		unsigned bat_perc;
+		time_t t;
+		struct tm *tm;
+
+		bat (fd_apm, &bat_sym, &bat_perc, &bat_time);
+
+		const int num = snprintf (
+			status,
+			sizeof status,
+			"[CPU \uf2db %s] [RAM \uf538 %s] [BAT %s %u%% (%s%s)] ",
+			cpu (ncpu, cpus),
+			ram (),
+			bat_sym,
+			bat_perc,
+			bat_time,
+			power ()
+		);
+
+		t = time (NULL);
+		tm = localtime (&t);
+		strftime (status + num, sizeof status - num, "%a %F %T", tm);
+		status[sizeof status - 1] = '\0';
+
+		XStoreName (dpy, root, status);
+		XFlush (dpy);
+		sleep (1);
+	}
+}
blob - /dev/null
blob + 25826dc79e8eb34a5a22011e5ff2bde25cc2d078 (mode 644)
--- /dev/null
+++ config.mk
@@ -0,0 +1,9 @@
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/man
+SCRIPTDIR = ${PREFIX}/libexec/desktop
+
+VERSION = "benni-0.1"
+
+CPPFLAGS = -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DPREFIX=\"${PREFIX}\" -DVERSION=\"${VERSION}\"
+CFLAGS = -std=c99 -pedantic -Wall -O2 ${CPPFLAGS}
+
blob - /dev/null
blob + 2a64b28b79bac6e6cf95a5d8f0dba2400343cdd9 (mode 644)
--- /dev/null
+++ dmenu/LICENSE
@@ -0,0 +1,30 @@
+MIT/X Consortium License
+
+© 2006-2019 Anselm R Garbe <anselm@garbe.ca>
+© 2006-2008 Sander van Dijk <a.h.vandijk@gmail.com>
+© 2006-2007 Michał Janeczek <janeczek@gmail.com>
+© 2007 Kris Maglione <jg@suckless.org>
+© 2009 Gottox <gottox@s01.de>
+© 2009 Markus Schnalke <meillo@marmaro.de>
+© 2009 Evan Gates <evan.gates@gmail.com>
+© 2010-2012 Connor Lane Smith <cls@lubutu.com>
+© 2014-2022 Hiltjo Posthuma <hiltjo@codemadness.org>
+© 2015-2019 Quentin Rameau <quinq@fifth.space>
+
+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.
blob - /dev/null
blob + e94e02bba141956f87815147f021a579197846bc (mode 644)
--- /dev/null
+++ dmenu/arg.h
@@ -0,0 +1,49 @@
+/*
+ * 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;\
+				}\
+				for (brk_ = 0, argv[0]++, argv_ = argv;\
+						argv[0][0] && !brk_;\
+						argv[0]++) {\
+					if (argv_ != argv)\
+						break;\
+					argc_ = argv[0][0];\
+					switch (argc_)
+
+#define ARGEND			}\
+			}
+
+#define ARGC()		argc_
+
+#define EARGF(x)	((argv[0][1] == '\0' && argv[1] == NULL)?\
+				((x), abort(), (char *)0) :\
+				(brk_ = 1, (argv[0][1] != '\0')?\
+					(&argv[0][1]) :\
+					(argc--, argv++, argv[0])))
+
+#define ARGF()		((argv[0][1] == '\0' && argv[1] == NULL)?\
+				(char *)0 :\
+				(brk_ = 1, (argv[0][1] != '\0')?\
+					(&argv[0][1]) :\
+					(argc--, argv++, argv[0])))
+
+#endif
blob - /dev/null
blob + e1df503be625068797cbeff00f1cb5b5ff777508 (mode 644)
--- /dev/null
+++ dmenu/config.h
@@ -0,0 +1,26 @@
+/* See LICENSE file for copyright and license details. */
+/* Default settings; can be overriden by command line. */
+
+static int topbar = 1;                      /* -b  option; if 0, dmenu appears at bottom     */
+static int fuzzy = 1;                      /* -F  option; if 0, dmenu doesn't use fuzzy matching     */
+/* -fn option overrides fonts[0]; default X11 font or font set */
+static const char *fonts[] = {
+	"monospace:size=6"
+};
+static const char *prompt      = NULL;      /* -p  option; prompt to the left of input field */
+static const char *colors[SchemeLast][2] = {
+	/*     fg         bg       */
+	[SchemeNorm] = { "#bbbbbb", "#222222" },
+	[SchemeSel] = { "#eeeeee", "#2255ff" },
+	[SchemeSelHighlight] = { "#ffc978", "#2255ff" },
+	[SchemeNormHighlight] = { "#ffc978", "#222222" },
+	[SchemeOut] = { "#000000", "#00ffff" },
+};
+/* -l option; if nonzero, dmenu uses vertical list with given number of lines */
+static unsigned int lines      = 0;
+
+/*
+ * Characters not considered part of a word while deleting words
+ * for example: " /?\"&[]"
+ */
+static const char worddelimiters[] = " ";
blob - /dev/null
blob + 323f93cf88eee5bd4878cf78cf40d9677277916c (mode 644)
--- /dev/null
+++ dmenu/dmenu.1
@@ -0,0 +1,194 @@
+.TH DMENU 1 dmenu\-VERSION
+.SH NAME
+dmenu \- dynamic menu
+.SH SYNOPSIS
+.B dmenu
+.RB [ \-bfiv ]
+.RB [ \-l
+.IR lines ]
+.RB [ \-m
+.IR monitor ]
+.RB [ \-p
+.IR prompt ]
+.RB [ \-fn
+.IR font ]
+.RB [ \-nb
+.IR color ]
+.RB [ \-nf
+.IR color ]
+.RB [ \-sb
+.IR color ]
+.RB [ \-sf
+.IR color ]
+.RB [ \-w
+.IR windowid ]
+.P
+.BR dmenu_run " ..."
+.SH DESCRIPTION
+.B dmenu
+is a dynamic menu for X, which reads a list of newline\-separated items from
+stdin.  When the user selects an item and presses Return, their choice is printed
+to stdout and dmenu terminates.  Entering text will narrow the items to those
+matching the tokens in the input.
+.P
+.B dmenu_run
+is a script used by
+.IR dwm (1)
+which lists programs in the user's $PATH and runs the result in their $SHELL.
+.SH OPTIONS
+.TP
+.B \-b
+dmenu appears at the bottom of the screen.
+.TP
+.B \-f
+dmenu grabs the keyboard before reading stdin if not reading from a tty. This
+is faster, but will lock up X until stdin reaches end\-of\-file.
+.TP
+.B \-i
+dmenu matches menu items case insensitively.
+.TP
+.BI \-l " lines"
+dmenu lists items vertically, with the given number of lines.
+.TP
+.BI \-m " monitor"
+dmenu is displayed on the monitor number supplied. Monitor numbers are starting
+from 0.
+.TP
+.BI \-p " prompt"
+defines the prompt to be displayed to the left of the input field.
+.TP
+.BI \-fn " font"
+defines the font or font set used.
+.TP
+.BI \-nb " color"
+defines the normal background color.
+.IR #RGB ,
+.IR #RRGGBB ,
+and X color names are supported.
+.TP
+.BI \-nf " color"
+defines the normal foreground color.
+.TP
+.BI \-sb " color"
+defines the selected background color.
+.TP
+.BI \-sf " color"
+defines the selected foreground color.
+.TP
+.B \-v
+prints version information to stdout, then exits.
+.TP
+.BI \-w " windowid"
+embed into windowid.
+.SH USAGE
+dmenu is completely controlled by the keyboard.  Items are selected using the
+arrow keys, page up, page down, home, and end.
+.TP
+.B Tab
+Copy the selected item to the input field.
+.TP
+.B Return
+Confirm selection.  Prints the selected item to stdout and exits, returning
+success.
+.TP
+.B Ctrl-Return
+Confirm selection.  Prints the selected item to stdout and continues.
+.TP
+.B Shift\-Return
+Confirm input.  Prints the input text to stdout and exits, returning success.
+.TP
+.B Escape
+Exit without selecting an item, returning failure.
+.TP
+.B Ctrl-Left
+Move cursor to the start of the current word
+.TP
+.B Ctrl-Right
+Move cursor to the end of the current word
+.TP
+.B C\-a
+Home
+.TP
+.B C\-b
+Left
+.TP
+.B C\-c
+Escape
+.TP
+.B C\-d
+Delete
+.TP
+.B C\-e
+End
+.TP
+.B C\-f
+Right
+.TP
+.B C\-g
+Escape
+.TP
+.B C\-h
+Backspace
+.TP
+.B C\-i
+Tab
+.TP
+.B C\-j
+Return
+.TP
+.B C\-J
+Shift-Return
+.TP
+.B C\-k
+Delete line right
+.TP
+.B C\-m
+Return
+.TP
+.B C\-M
+Shift-Return
+.TP
+.B C\-n
+Down
+.TP
+.B C\-p
+Up
+.TP
+.B C\-u
+Delete line left
+.TP
+.B C\-w
+Delete word left
+.TP
+.B C\-y
+Paste from primary X selection
+.TP
+.B C\-Y
+Paste from X clipboard
+.TP
+.B M\-b
+Move cursor to the start of the current word
+.TP
+.B M\-f
+Move cursor to the end of the current word
+.TP
+.B M\-g
+Home
+.TP
+.B M\-G
+End
+.TP
+.B M\-h
+Up
+.TP
+.B M\-j
+Page down
+.TP
+.B M\-k
+Page up
+.TP
+.B M\-l
+Down
+.SH SEE ALSO
+.IR dwm (1),
+.IR stest (1)
blob - /dev/null
blob + c6dc01ea4ac34d82b4f6a04d0a43de79ad1b9c14 (mode 644)
--- /dev/null
+++ dmenu/dmenu.c
@@ -0,0 +1,942 @@
+/* See LICENSE file for copyright and license details. */
+#include <ctype.h>
+#include <locale.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif
+#include <X11/Xft/Xft.h>
+
+#include "drw.h"
+#include "util.h"
+
+/* macros */
+#define INTERSECT(x,y,w,h,r)  (MAX(0, MIN((x)+(w),(r).x_org+(r).width)  - MAX((x),(r).x_org)) \
+                             * MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
+#define LENGTH(X)             (sizeof X / sizeof X[0])
+#define TEXTW(X)              (drw_fontset_getwidth(drw, (X)) + lrpad)
+#define NUMBERSMAXDIGITS      100
+#define NUMBERSBUFSIZE        (NUMBERSMAXDIGITS * 2) + 1
+
+/* enums */
+enum { SchemeNorm, SchemeSel, SchemeOut, SchemeNormHighlight, SchemeSelHighlight, SchemeLast }; /* color schemes */
+
+struct item {
+	char *text;
+	struct item *left, *right;
+	int out;
+	double distance;
+};
+
+static char numbers[NUMBERSBUFSIZE] = "";
+static char text[BUFSIZ] = "";
+static char *embed;
+static int bh, mw, mh;
+static int inputw = 0, promptw;
+static int lrpad; /* sum of left and right padding */
+static size_t cursor;
+static struct item *items = NULL;
+static struct item *matches, *matchend;
+static struct item *prev, *curr, *next, *sel;
+static int mon = -1, screen;
+
+static Atom clip, utf8;
+static Display *dpy;
+static Window root, parentwin, win;
+static XIC xic;
+
+static Drw *drw;
+static Clr *scheme[SchemeLast];
+
+#include "config.h"
+
+static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
+static char *(*fstrstr)(const char *, const char *) = strstr;
+
+static unsigned int
+textw_clamp(const char *str, unsigned int n)
+{
+	unsigned int w = drw_fontset_getwidth_clamp(drw, str, n) + lrpad;
+	return MIN(w, n);
+}
+
+static void
+appenditem(struct item *item, struct item **list, struct item **last)
+{
+	if (*last)
+		(*last)->right = item;
+	else
+		*list = item;
+
+	item->left = *last;
+	item->right = NULL;
+	*last = item;
+}
+
+static void
+calcoffsets(void)
+{
+	int i, n;
+
+	if (lines > 0)
+		n = lines * bh;
+	else
+		n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">") + TEXTW(numbers));
+	/* calculate which items will begin the next page and previous page */
+	for (i = 0, next = curr; next; next = next->right)
+		if ((i += (lines > 0) ? bh : textw_clamp(next->text, n)) > n)
+			break;
+	for (i = 0, prev = curr; prev && prev->left; prev = prev->left)
+		if ((i += (lines > 0) ? bh : textw_clamp(prev->left->text, n)) > n)
+			break;
+}
+
+static void
+cleanup(void)
+{
+	size_t i;
+
+	XUngrabKey(dpy, AnyKey, AnyModifier, root);
+	for (i = 0; i < SchemeLast; i++)
+		free(scheme[i]);
+	for (i = 0; items && items[i].text; ++i)
+		free(items[i].text);
+	free(items);
+	drw_free(drw);
+	XSync(dpy, False);
+	XCloseDisplay(dpy);
+}
+
+static char *
+cistrstr(const char *h, const char *n)
+{
+	size_t i;
+
+	if (!n[0])
+		return (char *)h;
+
+	for (; *h; ++h) {
+		for (i = 0; n[i] && tolower((unsigned char)n[i]) ==
+		            tolower((unsigned char)h[i]); ++i)
+			;
+		if (n[i] == '\0')
+			return (char *)h;
+	}
+	return NULL;
+}
+
+static void
+drawhighlights(struct item *item, int x, int y, int maxw)
+{
+	char restorechar, tokens[sizeof text], *highlight,  *token;
+	int indentx, highlightlen;
+
+	drw_setscheme(drw, scheme[item == sel ? SchemeSelHighlight : SchemeNormHighlight]);
+	strlcpy (tokens, text, sizeof (tokens));
+	//strcpy(tokens, text);
+	for (token = strtok(tokens, " "); token; token = strtok(NULL, " ")) {
+		highlight = fstrstr(item->text, token);
+		while (highlight) {
+			// Move item str end, calc width for highlight indent, & restore
+			highlightlen = highlight - item->text;
+			restorechar = *highlight;
+			item->text[highlightlen] = '\0';
+			indentx = TEXTW(item->text);
+			item->text[highlightlen] = restorechar;
+
+			// Move highlight str end, draw highlight, & restore
+			restorechar = highlight[strlen(token)];
+			highlight[strlen(token)] = '\0';
+			if (indentx - (lrpad / 2) - 1 < maxw)
+				drw_text(
+					drw,
+					x + indentx - (lrpad / 2) - 1,
+					y,
+					MIN(maxw - indentx, TEXTW(highlight) - lrpad),
+					bh, 0, highlight, 0
+				);
+			highlight[strlen(token)] = restorechar;
+
+			if (strlen(highlight) - strlen(token) < strlen(token)) break;
+			highlight = fstrstr(highlight + strlen(token), token);
+		}
+	}
+}
+
+static int
+drawitem(struct item *item, int x, int y, int w)
+{
+	if (item == sel)
+		drw_setscheme(drw, scheme[SchemeSel]);
+	else if (item->out)
+		drw_setscheme(drw, scheme[SchemeOut]);
+	else
+		drw_setscheme(drw, scheme[SchemeNorm]);
+
+	int r = drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0);
+	drawhighlights(item, x, y, w);
+	return r;
+}
+
+static void
+recalculatenumbers(void)
+{
+	unsigned int numer = 0, denom = 0;
+	struct item *item;
+	if (matchend) {
+		numer++;
+		for (item = matchend; item && item->left; item = item->left)
+			numer++;
+	}
+	for (item = items; item && item->text; item++)
+		denom++;
+	snprintf(numbers, NUMBERSBUFSIZE, "%d/%d", numer, denom);
+}
+
+static void
+drawmenu(void)
+{
+	unsigned int curpos;
+	struct item *item;
+	int x = 0, y = 0, w;
+
+	drw_setscheme(drw, scheme[SchemeNorm]);
+	drw_rect(drw, 0, 0, mw, mh, 1, 1);
+
+	if (prompt && *prompt) {
+		drw_setscheme(drw, scheme[SchemeSel]);
+		x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0);
+	}
+	/* draw input field */
+	w = (lines > 0 || !matches) ? mw - x : inputw;
+	drw_setscheme(drw, scheme[SchemeNorm]);
+	drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);
+
+	curpos = TEXTW(text) - TEXTW(&text[cursor]);
+	if ((curpos += lrpad / 2 - 1) < w) {
+		drw_setscheme(drw, scheme[SchemeNorm]);
+		drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0);
+	}
+
+	recalculatenumbers();
+	if (lines > 0) {
+		/* draw vertical list */
+		for (item = curr; item != next; item = item->right)
+			drawitem(item, x, y += bh, mw - x);
+	} else if (matches) {
+		/* draw horizontal list */
+		x += inputw;
+		w = TEXTW("<");
+		if (curr->left) {
+			drw_setscheme(drw, scheme[SchemeNorm]);
+			drw_text(drw, x, 0, w, bh, lrpad / 2, "<", 0);
+		}
+		x += w;
+		for (item = curr; item != next; item = item->right)
+			x = drawitem(item, x, 0, textw_clamp(item->text, mw - x - TEXTW(">") - TEXTW(numbers)));
+		if (next) {
+			w = TEXTW(">");
+			drw_setscheme(drw, scheme[SchemeNorm]);
+			drw_text(drw, mw - w - TEXTW(numbers), 0, w, bh, lrpad / 2, ">", 0);
+		}
+	}
+	drw_setscheme(drw, scheme[SchemeNorm]);
+	drw_text(drw, mw - TEXTW(numbers), 0, TEXTW(numbers), bh, lrpad / 2, numbers, 0);
+	drw_map(drw, win, 0, 0, mw, mh);
+}
+
+static void
+grabfocus(void)
+{
+	struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000  };
+	Window focuswin;
+	int i, revertwin;
+
+	for (i = 0; i < 100; ++i) {
+		XGetInputFocus(dpy, &focuswin, &revertwin);
+		if (focuswin == win)
+			return;
+		XSetInputFocus(dpy, win, RevertToParent, CurrentTime);
+		nanosleep(&ts, NULL);
+	}
+	die("cannot grab focus");
+}
+
+static void
+grabkeyboard(void)
+{
+	struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000  };
+	int i;
+
+	if (embed)
+		return;
+	/* try to grab keyboard, we may have to wait for another process to ungrab */
+	for (i = 0; i < 1000; i++) {
+		if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync,
+		                  GrabModeAsync, CurrentTime) == GrabSuccess)
+			return;
+		nanosleep(&ts, NULL);
+	}
+	die("cannot grab keyboard");
+}
+
+int
+compare_distance(const void *a, const void *b)
+{
+	struct item *da = *(struct item **) a;
+	struct item *db = *(struct item **) b;
+
+	if (!db)
+		return 1;
+	if (!da)
+		return -1;
+
+	return da->distance == db->distance ? 0 : da->distance < db->distance ? -1 : 1;
+}
+
+void
+fuzzymatch(void)
+{
+	/* bang - we have so much memory */
+	struct item *it;
+	struct item **fuzzymatches = NULL;
+	char c;
+	int number_of_matches = 0, i, pidx, sidx, eidx;
+	int text_len = strlen(text), itext_len;
+
+	matches = matchend = NULL;
+
+	/* walk through all items */
+	for (it = items; it && it->text; it++) {
+		if (text_len) {
+			itext_len = strlen(it->text);
+			pidx = 0; /* pointer */
+			sidx = eidx = -1; /* start of match, end of match */
+			/* walk through item text */
+			for (i = 0; i < itext_len && (c = it->text[i]); i++) {
+				/* fuzzy match pattern */
+				if (!fstrncmp(&text[pidx], &c, 1)) {
+					if(sidx == -1)
+						sidx = i;
+					pidx++;
+					if (pidx == text_len) {
+						eidx = i;
+						break;
+					}
+				}
+			}
+			/* build list of matches */
+			if (eidx != -1) {
+				/* compute distance */
+				/* add penalty if match starts late (log(sidx+2))
+				 * add penalty for long a match without many matching characters */
+				it->distance = log(sidx + 2) + (double)(eidx - sidx - text_len);
+				/* fprintf(stderr, "distance %s %f\n", it->text, it->distance); */
+				appenditem(it, &matches, &matchend);
+				number_of_matches++;
+			}
+		} else {
+			appenditem(it, &matches, &matchend);
+		}
+	}
+
+	if (number_of_matches) {
+		/* initialize array with matches */
+		if (!(fuzzymatches = realloc(fuzzymatches, number_of_matches * sizeof(struct item*))))
+			die("cannot realloc %u bytes:", number_of_matches * sizeof(struct item*));
+		for (i = 0, it = matches; it && i < number_of_matches; i++, it = it->right) {
+			fuzzymatches[i] = it;
+		}
+		/* sort matches according to distance */
+		qsort(fuzzymatches, number_of_matches, sizeof(struct item*), compare_distance);
+		/* rebuild list of matches */
+		matches = matchend = NULL;
+		for (i = 0, it = fuzzymatches[i];  i < number_of_matches && it && \
+				it->text; i++, it = fuzzymatches[i]) {
+			appenditem(it, &matches, &matchend);
+		}
+		free(fuzzymatches);
+	}
+	curr = sel = matches;
+	calcoffsets();
+}
+
+static void
+match(void)
+{
+	if (fuzzy) {
+		fuzzymatch();
+		return;
+	}
+	static char **tokv = NULL;
+	static int tokn = 0;
+
+	char buf[sizeof text], *s;
+	int i, tokc = 0;
+	size_t len, textsize;
+	struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
+
+	//strcpy(buf, text);
+	strlcpy(buf, text, sizeof(buf));
+	/* separate input text into tokens to be matched individually */
+	for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
+		if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
+			die("cannot realloc %zu bytes:", tokn * sizeof *tokv);
+	len = tokc ? strlen(tokv[0]) : 0;
+
+	matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
+	textsize = strlen(text) + 1;
+	for (item = items; item && item->text; item++) {
+		for (i = 0; i < tokc; i++)
+			if (!fstrstr(item->text, tokv[i]))
+				break;
+		if (i != tokc) /* not all tokens match */
+			continue;
+		/* exact matches go first, then prefixes, then substrings */
+		if (!tokc || !fstrncmp(text, item->text, textsize))
+			appenditem(item, &matches, &matchend);
+		else if (!fstrncmp(tokv[0], item->text, len))
+			appenditem(item, &lprefix, &prefixend);
+		else
+			appenditem(item, &lsubstr, &substrend);
+	}
+	if (lprefix) {
+		if (matches) {
+			matchend->right = lprefix;
+			lprefix->left = matchend;
+		} else
+			matches = lprefix;
+		matchend = prefixend;
+	}
+	if (lsubstr) {
+		if (matches) {
+			matchend->right = lsubstr;
+			lsubstr->left = matchend;
+		} else
+			matches = lsubstr;
+		matchend = substrend;
+	}
+	curr = sel = matches;
+	calcoffsets();
+}
+
+static void
+insert(const char *str, ssize_t n)
+{
+	if (strlen(text) + n > sizeof text - 1)
+		return;
+	/* move existing text out of the way, insert new text, and update cursor */
+	memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
+	if (n > 0)
+		memcpy(&text[cursor], str, n);
+	cursor += n;
+	match();
+}
+
+static size_t
+nextrune(int inc)
+{
+	ssize_t n;
+
+	/* return location of next utf8 rune in the given direction (+1 or -1) */
+	for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
+		;
+	return n;
+}
+
+static void
+movewordedge(int dir)
+{
+	if (dir < 0) { /* move cursor to the start of the word*/
+		while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
+			cursor = nextrune(-1);
+		while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
+			cursor = nextrune(-1);
+	} else { /* move cursor to the end of the word */
+		while (text[cursor] && strchr(worddelimiters, text[cursor]))
+			cursor = nextrune(+1);
+		while (text[cursor] && !strchr(worddelimiters, text[cursor]))
+			cursor = nextrune(+1);
+	}
+}
+
+static void
+keypress(XKeyEvent *ev)
+{
+	char buf[64];
+	int len;
+	KeySym ksym = NoSymbol;
+	Status status;
+
+	len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
+	switch (status) {
+	default: /* XLookupNone, XBufferOverflow */
+		return;
+	case XLookupChars: /* composed string from input method */
+		goto insert;
+	case XLookupKeySym:
+	case XLookupBoth: /* a KeySym and a string are returned: use keysym */
+		break;
+	}
+
+	if (ev->state & ControlMask) {
+		switch(ksym) {
+		case XK_a: ksym = XK_Home;      break;
+		case XK_b: ksym = XK_Left;      break;
+		case XK_c: ksym = XK_Escape;    break;
+		case XK_d: ksym = XK_Delete;    break;
+		case XK_e: ksym = XK_End;       break;
+		case XK_f: ksym = XK_Right;     break;
+		case XK_g: ksym = XK_Escape;    break;
+		case XK_h: ksym = XK_BackSpace; break;
+		case XK_i: ksym = XK_Tab;       break;
+		case XK_j: /* fallthrough */
+		case XK_J: /* fallthrough */
+		case XK_m: /* fallthrough */
+		case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break;
+		case XK_n: ksym = XK_Down;      break;
+		case XK_p: ksym = XK_Up;        break;
+
+		case XK_k: /* delete right */
+			text[cursor] = '\0';
+			match();
+			break;
+		case XK_u: /* delete left */
+			insert(NULL, 0 - cursor);
+			break;
+		case XK_w: /* delete word */
+			while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
+				insert(NULL, nextrune(-1) - cursor);
+			while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
+				insert(NULL, nextrune(-1) - cursor);
+			break;
+		case XK_y: /* paste selection */
+		case XK_Y:
+			XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
+			                  utf8, utf8, win, CurrentTime);
+			return;
+		case XK_Left:
+		case XK_KP_Left:
+			movewordedge(-1);
+			goto draw;
+		case XK_Right:
+		case XK_KP_Right:
+			movewordedge(+1);
+			goto draw;
+		case XK_Return:
+		case XK_KP_Enter:
+			break;
+		case XK_bracketleft:
+			cleanup();
+			exit(1);
+		default:
+			return;
+		}
+	} else if (ev->state & Mod1Mask) {
+		switch(ksym) {
+		case XK_b:
+			movewordedge(-1);
+			goto draw;
+		case XK_f:
+			movewordedge(+1);
+			goto draw;
+		case XK_g: ksym = XK_Home;  break;
+		case XK_G: ksym = XK_End;   break;
+		case XK_h: ksym = XK_Up;    break;
+		case XK_j: ksym = XK_Next;  break;
+		case XK_k: ksym = XK_Prior; break;
+		case XK_l: ksym = XK_Down;  break;
+		default:
+			return;
+		}
+	}
+
+	switch(ksym) {
+	default:
+insert:
+		if (!iscntrl((unsigned char)*buf))
+			insert(buf, len);
+		break;
+	case XK_Delete:
+	case XK_KP_Delete:
+		if (text[cursor] == '\0')
+			return;
+		cursor = nextrune(+1);
+		/* fallthrough */
+	case XK_BackSpace:
+		if (cursor == 0)
+			return;
+		insert(NULL, nextrune(-1) - cursor);
+		break;
+	case XK_End:
+	case XK_KP_End:
+		if (text[cursor] != '\0') {
+			cursor = strlen(text);
+			break;
+		}
+		if (next) {
+			/* jump to end of list and position items in reverse */
+			curr = matchend;
+			calcoffsets();
+			curr = prev;
+			calcoffsets();
+			while (next && (curr = curr->right))
+				calcoffsets();
+		}
+		sel = matchend;
+		break;
+	case XK_Escape:
+		cleanup();
+		exit(1);
+	case XK_Home:
+	case XK_KP_Home:
+		if (sel == matches) {
+			cursor = 0;
+			break;
+		}
+		sel = curr = matches;
+		calcoffsets();
+		break;
+	case XK_Left:
+	case XK_KP_Left:
+		if (cursor > 0 && (!sel || !sel->left || lines > 0)) {
+			cursor = nextrune(-1);
+			break;
+		}
+		if (lines > 0)
+			return;
+		/* fallthrough */
+	case XK_Up:
+	case XK_KP_Up:
+		if (sel && sel->left && (sel = sel->left)->right == curr) {
+			curr = prev;
+			calcoffsets();
+		}
+		break;
+	case XK_Next:
+	case XK_KP_Next:
+		if (!next)
+			return;
+		sel = curr = next;
+		calcoffsets();
+		break;
+	case XK_Prior:
+	case XK_KP_Prior:
+		if (!prev)
+			return;
+		sel = curr = prev;
+		calcoffsets();
+		break;
+	case XK_Return:
+	case XK_KP_Enter:
+		puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
+		if (!(ev->state & ControlMask)) {
+			cleanup();
+			exit(0);
+		}
+		if (sel)
+			sel->out = 1;
+		break;
+	case XK_Right:
+	case XK_KP_Right:
+		if (text[cursor] != '\0') {
+			cursor = nextrune(+1);
+			break;
+		}
+		if (lines > 0)
+			return;
+		/* fallthrough */
+	case XK_Down:
+	case XK_KP_Down:
+		if (sel && sel->right && (sel = sel->right) == next) {
+			curr = next;
+			calcoffsets();
+		}
+		break;
+	case XK_Tab:
+		if (!sel)
+			return;
+		cursor = strnlen(sel->text, sizeof text - 1);
+		memcpy(text, sel->text, cursor);
+		text[cursor] = '\0';
+		match();
+		break;
+	}
+
+draw:
+	drawmenu();
+}
+
+static void
+paste(void)
+{
+	char *p, *q;
+	int di;
+	unsigned long dl;
+	Atom da;
+
+	/* we have been given the current selection, now insert it into input */
+	if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
+	                   utf8, &da, &di, &dl, &dl, (unsigned char **)&p)
+	    == Success && p) {
+		insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p));
+		XFree(p);
+	}
+	drawmenu();
+}
+
+static void
+readstdin(void)
+{
+	char *line = NULL;
+	size_t i, junk, size = 0;
+	ssize_t len;
+
+	/* read each line from stdin and add it to the item list */
+	for (i = 0; (len = getline(&line, &junk, stdin)) != -1; i++, line = NULL) {
+		if (i + 1 >= size / sizeof *items)
+			if (!(items = realloc(items, (size += BUFSIZ))))
+				die("cannot realloc %zu bytes:", size);
+		if (line[len - 1] == '\n')
+			line[len - 1] = '\0';
+		items[i].text = line;
+		items[i].out = 0;
+	}
+	if (items)
+		items[i].text = NULL;
+	lines = MIN(lines, i);
+}
+
+static void
+run(void)
+{
+	XEvent ev;
+
+	while (!XNextEvent(dpy, &ev)) {
+		if (XFilterEvent(&ev, win))
+			continue;
+		switch(ev.type) {
+		case DestroyNotify:
+			if (ev.xdestroywindow.window != win)
+				break;
+			cleanup();
+			exit(1);
+		case Expose:
+			if (ev.xexpose.count == 0)
+				drw_map(drw, win, 0, 0, mw, mh);
+			break;
+		case FocusIn:
+			/* regrab focus from parent window */
+			if (ev.xfocus.window != win)
+				grabfocus();
+			break;
+		case KeyPress:
+			keypress(&ev.xkey);
+			break;
+		case SelectionNotify:
+			if (ev.xselection.property == utf8)
+				paste();
+			break;
+		case VisibilityNotify:
+			if (ev.xvisibility.state != VisibilityUnobscured)
+				XRaiseWindow(dpy, win);
+			break;
+		}
+	}
+}
+
+static void
+setup(void)
+{
+	int x, y, i, j;
+	unsigned int du;
+	XSetWindowAttributes swa;
+	XIM xim;
+	Window w, dw, *dws;
+	XWindowAttributes wa;
+	XClassHint ch = {"dmenu", "dmenu"};
+#ifdef XINERAMA
+	XineramaScreenInfo *info;
+	Window pw;
+	int a, di, n, area = 0;
+#endif
+	/* init appearance */
+	for (j = 0; j < SchemeLast; j++)
+		scheme[j] = drw_scm_create(drw, colors[j], 2);
+
+	clip = XInternAtom(dpy, "CLIPBOARD",   False);
+	utf8 = XInternAtom(dpy, "UTF8_STRING", False);
+
+	/* calculate menu geometry */
+	bh = drw->fonts->h + 2;
+	lines = MAX(lines, 0);
+	mh = (lines + 1) * bh;
+#ifdef XINERAMA
+	i = 0;
+	if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
+		XGetInputFocus(dpy, &w, &di);
+		if (mon >= 0 && mon < n)
+			i = mon;
+		else if (w != root && w != PointerRoot && w != None) {
+			/* find top-level window containing current input focus */
+			do {
+				if (XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws)
+					XFree(dws);
+			} while (w != root && w != pw);
+			/* find xinerama screen with which the window intersects most */
+			if (XGetWindowAttributes(dpy, pw, &wa))
+				for (j = 0; j < n; j++)
+					if ((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) {
+						area = a;
+						i = j;
+					}
+		}
+		/* no focused window is on screen, so use pointer location instead */
+		if (mon < 0 && !area && XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
+			for (i = 0; i < n; i++)
+				if (INTERSECT(x, y, 1, 1, info[i]) != 0)
+					break;
+
+		x = info[i].x_org;
+		y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
+		mw = info[i].width;
+		XFree(info);
+	} else
+#endif
+	{
+		if (!XGetWindowAttributes(dpy, parentwin, &wa))
+			die("could not get embedding window attributes: 0x%lx",
+			    parentwin);
+		x = 0;
+		y = topbar ? 0 : wa.height - mh;
+		mw = wa.width;
+	}
+	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
+	inputw = mw / 3; /* input width: ~33% of monitor width */
+	match();
+
+	/* create menu window */
+	swa.override_redirect = True;
+	swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
+	swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
+	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
+	                    CopyFromParent, CopyFromParent, CopyFromParent,
+	                    CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
+	XSetClassHint(dpy, win, &ch);
+
+
+	/* input methods */
+	if ((xim = XOpenIM(dpy, NULL, NULL, NULL)) == NULL)
+		die("XOpenIM failed: could not open input device");
+
+	xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
+	                XNClientWindow, win, XNFocusWindow, win, NULL);
+
+	XMapRaised(dpy, win);
+	if (embed) {
+		XSelectInput(dpy, parentwin, FocusChangeMask | SubstructureNotifyMask);
+		if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) {
+			for (i = 0; i < du && dws[i] != win; ++i)
+				XSelectInput(dpy, dws[i], FocusChangeMask);
+			XFree(dws);
+		}
+		grabfocus();
+	}
+	drw_resize(drw, mw, mh);
+	drawmenu();
+}
+
+static void
+usage(void)
+{
+	die("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
+	    "             [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]");
+}
+
+int
+main(int argc, char *argv[])
+{
+	XWindowAttributes wa;
+	int i, fast = 0;
+
+	for (i = 1; i < argc; i++)
+		/* these options take no arguments */
+		if (!strcmp(argv[i], "-v")) {      /* prints version information */
+			puts("dmenu-"VERSION);
+			exit(0);
+		} else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
+			topbar = 0;
+		else if (!strcmp(argv[i], "-f"))   /* grabs keyboard before reading stdin */
+			fast = 1;
+		else if (!strcmp(argv[i], "-F"))   /* grabs keyboard before reading stdin */
+			fuzzy = 0;
+		else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
+			fstrncmp = strncasecmp;
+			fstrstr = cistrstr;
+		} else if (i + 1 == argc)
+			usage();
+		/* these options take one argument */
+		else if (!strcmp(argv[i], "-l"))   /* number of lines in vertical list */
+			lines = atoi(argv[++i]);
+		else if (!strcmp(argv[i], "-m"))
+			mon = atoi(argv[++i]);
+		else if (!strcmp(argv[i], "-p"))   /* adds prompt to left of input field */
+			prompt = argv[++i];
+		else if (!strcmp(argv[i], "-fn"))  /* font or font set */
+			fonts[0] = argv[++i];
+		else if (!strcmp(argv[i], "-nb"))  /* normal background color */
+			colors[SchemeNorm][ColBg] = argv[++i];
+		else if (!strcmp(argv[i], "-nf"))  /* normal foreground color */
+			colors[SchemeNorm][ColFg] = argv[++i];
+		else if (!strcmp(argv[i], "-sb"))  /* selected background color */
+			colors[SchemeSel][ColBg] = argv[++i];
+		else if (!strcmp(argv[i], "-sf"))  /* selected foreground color */
+			colors[SchemeSel][ColFg] = argv[++i];
+		else if (!strcmp(argv[i], "-w"))   /* embedding window id */
+			embed = argv[++i];
+		else
+			usage();
+
+	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
+		fputs("warning: no locale support\n", stderr);
+	if (!(dpy = XOpenDisplay(NULL)))
+		die("cannot open display");
+	screen = DefaultScreen(dpy);
+	root = RootWindow(dpy, screen);
+	if (!embed || !(parentwin = strtol(embed, NULL, 0)))
+		parentwin = root;
+	if (!XGetWindowAttributes(dpy, parentwin, &wa))
+		die("could not get embedding window attributes: 0x%lx",
+		    parentwin);
+	drw = drw_create(dpy, screen, root, wa.width, wa.height);
+	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
+		die("no fonts could be loaded.");
+	lrpad = drw->fonts->h;
+
+#ifdef __OpenBSD__
+	if (pledge("stdio rpath", NULL) == -1)
+		die("pledge");
+#endif
+
+	if (fast && !isatty(0)) {
+		grabkeyboard();
+		readstdin();
+	} else {
+		readstdin();
+		grabkeyboard();
+	}
+	setup();
+	run();
+
+	return 1; /* unreachable */
+}
blob - /dev/null
blob + a58a2b4896500cd7c3b61fbdc626cd42cd9df40e (mode 644)
--- /dev/null
+++ dmenu/drw.c
@@ -0,0 +1,450 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xft/Xft.h>
+
+#include "drw.h"
+#include "util.h"
+
+#define UTF_INVALID 0xFFFD
+#define UTF_SIZ     4
+
+static const unsigned char utfbyte[UTF_SIZ + 1] = {0x80,    0, 0xC0, 0xE0, 0xF0};
+static const unsigned char utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
+static const long utfmin[UTF_SIZ + 1] = {       0,    0,  0x80,  0x800,  0x10000};
+static const long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
+
+static long
+utf8decodebyte(const char c, size_t *i)
+{
+	for (*i = 0; *i < (UTF_SIZ + 1); ++(*i))
+		if (((unsigned char)c & utfmask[*i]) == utfbyte[*i])
+			return (unsigned char)c & ~utfmask[*i];
+	return 0;
+}
+
+static size_t
+utf8validate(long *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;
+}
+
+static size_t
+utf8decode(const char *c, long *u, size_t clen)
+{
+	size_t i, j, len, type;
+	long 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)
+			return j;
+	}
+	if (j < len)
+		return 0;
+	*u = udecoded;
+	utf8validate(u, len);
+
+	return len;
+}
+
+Drw *
+drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
+{
+	Drw *drw = ecalloc(1, sizeof(Drw));
+
+	drw->dpy = dpy;
+	drw->screen = screen;
+	drw->root = root;
+	drw->w = w;
+	drw->h = h;
+	drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen));
+	drw->gc = XCreateGC(dpy, root, 0, NULL);
+	XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);
+
+	return drw;
+}
+
+void
+drw_resize(Drw *drw, unsigned int w, unsigned int h)
+{
+	if (!drw)
+		return;
+
+	drw->w = w;
+	drw->h = h;
+	if (drw->drawable)
+		XFreePixmap(drw->dpy, drw->drawable);
+	drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
+}
+
+void
+drw_free(Drw *drw)
+{
+	XFreePixmap(drw->dpy, drw->drawable);
+	XFreeGC(drw->dpy, drw->gc);
+	drw_fontset_free(drw->fonts);
+	free(drw);
+}
+
+/* This function is an implementation detail. Library users should use
+ * drw_fontset_create instead.
+ */
+static Fnt *
+xfont_create(Drw *drw, const char *fontname, FcPattern *fontpattern)
+{
+	Fnt *font;
+	XftFont *xfont = NULL;
+	FcPattern *pattern = NULL;
+
+	if (fontname) {
+		/* Using the pattern found at font->xfont->pattern does not yield the
+		 * same substitution results as using the pattern returned by
+		 * FcNameParse; using the latter results in the desired fallback
+		 * behaviour whereas the former just results in missing-character
+		 * rectangles being drawn, at least with some fonts. */
+		if (!(xfont = XftFontOpenName(drw->dpy, drw->screen, fontname))) {
+			fprintf(stderr, "error, cannot load font from name: '%s'\n", fontname);
+			return NULL;
+		}
+		if (!(pattern = FcNameParse((FcChar8 *) fontname))) {
+			fprintf(stderr, "error, cannot parse font name to pattern: '%s'\n", fontname);
+			XftFontClose(drw->dpy, xfont);
+			return NULL;
+		}
+	} else if (fontpattern) {
+		if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) {
+			fprintf(stderr, "error, cannot load font from pattern.\n");
+			return NULL;
+		}
+	} else {
+		die("no font specified.");
+	}
+
+	font = ecalloc(1, sizeof(Fnt));
+	font->xfont = xfont;
+	font->pattern = pattern;
+	font->h = xfont->ascent + xfont->descent;
+	font->dpy = drw->dpy;
+
+	return font;
+}
+
+static void
+xfont_free(Fnt *font)
+{
+	if (!font)
+		return;
+	if (font->pattern)
+		FcPatternDestroy(font->pattern);
+	XftFontClose(font->dpy, font->xfont);
+	free(font);
+}
+
+Fnt*
+drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount)
+{
+	Fnt *cur, *ret = NULL;
+	size_t i;
+
+	if (!drw || !fonts)
+		return NULL;
+
+	for (i = 1; i <= fontcount; i++) {
+		if ((cur = xfont_create(drw, fonts[fontcount - i], NULL))) {
+			cur->next = ret;
+			ret = cur;
+		}
+	}
+	return (drw->fonts = ret);
+}
+
+void
+drw_fontset_free(Fnt *font)
+{
+	if (font) {
+		drw_fontset_free(font->next);
+		xfont_free(font);
+	}
+}
+
+void
+drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
+{
+	if (!drw || !dest || !clrname)
+		return;
+
+	if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
+	                       DefaultColormap(drw->dpy, drw->screen),
+	                       clrname, dest))
+		die("error, cannot allocate color '%s'", clrname);
+}
+
+/* Wrapper to create color schemes. The caller has to call free(3) on the
+ * returned color scheme when done using it. */
+Clr *
+drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
+{
+	size_t i;
+	Clr *ret;
+
+	/* need at least two colors for a scheme */
+	if (!drw || !clrnames || clrcount < 2 || !(ret = ecalloc(clrcount, sizeof(XftColor))))
+		return NULL;
+
+	for (i = 0; i < clrcount; i++)
+		drw_clr_create(drw, &ret[i], clrnames[i]);
+	return ret;
+}
+
+void
+drw_setfontset(Drw *drw, Fnt *set)
+{
+	if (drw)
+		drw->fonts = set;
+}
+
+void
+drw_setscheme(Drw *drw, Clr *scm)
+{
+	if (drw)
+		drw->scheme = scm;
+}
+
+void
+drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert)
+{
+	if (!drw || !drw->scheme)
+		return;
+	XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme[ColBg].pixel : drw->scheme[ColFg].pixel);
+	if (filled)
+		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
+	else
+		XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w - 1, h - 1);
+}
+
+int
+drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert)
+{
+	int i, ty, ellipsis_x = 0;
+	unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len;
+	XftDraw *d = NULL;
+	Fnt *usedfont, *curfont, *nextfont;
+	int utf8strlen, utf8charlen, render = x || y || w || h;
+	long utf8codepoint = 0;
+	const char *utf8str;
+	FcCharSet *fccharset;
+	FcPattern *fcpattern;
+	FcPattern *match;
+	XftResult result;
+	int charexists = 0, overflow = 0;
+	/* keep track of a couple codepoints for which we have no match. */
+	enum { nomatches_len = 64 };
+	static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches;
+	static unsigned int ellipsis_width = 0;
+
+	if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts)
+		return 0;
+
+	if (!render) {
+		w = invert ? invert : ~invert;
+	} else {
+		XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
+		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
+		d = XftDrawCreate(drw->dpy, drw->drawable,
+		                  DefaultVisual(drw->dpy, drw->screen),
+		                  DefaultColormap(drw->dpy, drw->screen));
+		x += lpad;
+		w -= lpad;
+	}
+
+	usedfont = drw->fonts;
+	if (!ellipsis_width && render)
+		ellipsis_width = drw_fontset_getwidth(drw, "...");
+	while (1) {
+		ew = ellipsis_len = utf8strlen = 0;
+		utf8str = text;
+		nextfont = NULL;
+		while (*text) {
+			utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
+			for (curfont = drw->fonts; curfont; curfont = curfont->next) {
+				charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint);
+				if (charexists) {
+					drw_font_getexts(curfont, text, utf8charlen, &tmpw, NULL);
+					if (ew + ellipsis_width <= w) {
+						/* keep track where the ellipsis still fits */
+						ellipsis_x = x + ew;
+						ellipsis_w = w - ew;
+						ellipsis_len = utf8strlen;
+					}
+
+					if (ew + tmpw > w) {
+						overflow = 1;
+						/* called from drw_fontset_getwidth_clamp():
+						 * it wants the width AFTER the overflow
+						 */
+						if (!render)
+							x += tmpw;
+						else
+							utf8strlen = ellipsis_len;
+					} else if (curfont == usedfont) {
+						utf8strlen += utf8charlen;
+						text += utf8charlen;
+						ew += tmpw;
+					} else {
+						nextfont = curfont;
+					}
+					break;
+				}
+			}
+
+			if (overflow || !charexists || nextfont)
+				break;
+			else
+				charexists = 0;
+		}
+
+		if (utf8strlen) {
+			if (render) {
+				ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent;
+				XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg],
+				                  usedfont->xfont, x, ty, (XftChar8 *)utf8str, utf8strlen);
+			}
+			x += ew;
+			w -= ew;
+		}
+		if (render && overflow)
+			drw_text(drw, ellipsis_x, y, ellipsis_w, h, 0, "...", invert);
+
+		if (!*text || overflow) {
+			break;
+		} else if (nextfont) {
+			charexists = 0;
+			usedfont = nextfont;
+		} else {
+			/* Regardless of whether or not a fallback font is found, the
+			 * character must be drawn. */
+			charexists = 1;
+
+			for (i = 0; i < nomatches_len; ++i) {
+				/* avoid calling XftFontMatch if we know we won't find a match */
+				if (utf8codepoint == nomatches.codepoint[i])
+					goto no_match;
+			}
+
+			fccharset = FcCharSetCreate();
+			FcCharSetAddChar(fccharset, utf8codepoint);
+
+			if (!drw->fonts->pattern) {
+				/* Refer to the comment in xfont_create for more information. */
+				die("the first font in the cache must be loaded from a font string.");
+			}
+
+			fcpattern = FcPatternDuplicate(drw->fonts->pattern);
+			FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
+			FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue);
+
+			FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
+			FcDefaultSubstitute(fcpattern);
+			match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result);
+
+			FcCharSetDestroy(fccharset);
+			FcPatternDestroy(fcpattern);
+
+			if (match) {
+				usedfont = xfont_create(drw, NULL, match);
+				if (usedfont && XftCharExists(drw->dpy, usedfont->xfont, utf8codepoint)) {
+					for (curfont = drw->fonts; curfont->next; curfont = curfont->next)
+						; /* NOP */
+					curfont->next = usedfont;
+				} else {
+					xfont_free(usedfont);
+					nomatches.codepoint[++nomatches.idx % nomatches_len] = utf8codepoint;
+no_match:
+					usedfont = drw->fonts;
+				}
+			}
+		}
+	}
+	if (d)
+		XftDrawDestroy(d);
+
+	return x + (render ? w : 0);
+}
+
+void
+drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h)
+{
+	if (!drw)
+		return;
+
+	XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
+	XSync(drw->dpy, False);
+}
+
+unsigned int
+drw_fontset_getwidth(Drw *drw, const char *text)
+{
+	if (!drw || !drw->fonts || !text)
+		return 0;
+	return drw_text(drw, 0, 0, 0, 0, 0, text, 0);
+}
+
+unsigned int
+drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n)
+{
+	unsigned int tmp = 0;
+	if (drw && drw->fonts && text && n)
+		tmp = drw_text(drw, 0, 0, 0, 0, 0, text, n);
+	return MIN(n, tmp);
+}
+
+void
+drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h)
+{
+	XGlyphInfo ext;
+
+	if (!font || !text)
+		return;
+
+	XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext);
+	if (w)
+		*w = ext.xOff;
+	if (h)
+		*h = font->h;
+}
+
+Cur *
+drw_cur_create(Drw *drw, int shape)
+{
+	Cur *cur;
+
+	if (!drw || !(cur = ecalloc(1, sizeof(Cur))))
+		return NULL;
+
+	cur->cursor = XCreateFontCursor(drw->dpy, shape);
+
+	return cur;
+}
+
+void
+drw_cur_free(Drw *drw, Cur *cursor)
+{
+	if (!cursor)
+		return;
+
+	XFreeCursor(drw->dpy, cursor->cursor);
+	free(cursor);
+}
blob - /dev/null
blob + fd7631b2ba4a3b3b3734345afae2b80078a8e980 (mode 644)
--- /dev/null
+++ dmenu/drw.h
@@ -0,0 +1,58 @@
+/* See LICENSE file for copyright and license details. */
+
+typedef struct {
+	Cursor cursor;
+} Cur;
+
+typedef struct Fnt {
+	Display *dpy;
+	unsigned int h;
+	XftFont *xfont;
+	FcPattern *pattern;
+	struct Fnt *next;
+} Fnt;
+
+enum { ColFg, ColBg }; /* Clr scheme index */
+typedef XftColor Clr;
+
+typedef struct {
+	unsigned int w, h;
+	Display *dpy;
+	int screen;
+	Window root;
+	Drawable drawable;
+	GC gc;
+	Clr *scheme;
+	Fnt *fonts;
+} Drw;
+
+/* Drawable abstraction */
+Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
+void drw_resize(Drw *drw, unsigned int w, unsigned int h);
+void drw_free(Drw *drw);
+
+/* Fnt abstraction */
+Fnt *drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount);
+void drw_fontset_free(Fnt* set);
+unsigned int drw_fontset_getwidth(Drw *drw, const char *text);
+unsigned int drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n);
+void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h);
+
+/* Colorscheme abstraction */
+void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
+Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount);
+
+/* Cursor abstraction */
+Cur *drw_cur_create(Drw *drw, int shape);
+void drw_cur_free(Drw *drw, Cur *cursor);
+
+/* Drawing context manipulation */
+void drw_setfontset(Drw *drw, Fnt *set);
+void drw_setscheme(Drw *drw, Clr *scm);
+
+/* Drawing functions */
+void drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert);
+int drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert);
+
+/* Map functions */
+void drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h);
blob - /dev/null
blob + 2667d8aa7dbd9318a6bdea921aaa9a912a15a9df (mode 644)
--- /dev/null
+++ dmenu/stest.1
@@ -0,0 +1,90 @@
+.TH STEST 1 dmenu\-VERSION
+.SH NAME
+stest \- filter a list of files by properties
+.SH SYNOPSIS
+.B stest
+.RB [ -abcdefghlpqrsuwx ]
+.RB [ -n
+.IR file ]
+.RB [ -o
+.IR file ]
+.RI [ file ...]
+.SH DESCRIPTION
+.B stest
+takes a list of files and filters by the files' properties, analogous to
+.IR test (1).
+Files which pass all tests are printed to stdout. If no files are given, stest
+reads files from stdin.
+.SH OPTIONS
+.TP
+.B \-a
+Test hidden files.
+.TP
+.B \-b
+Test that files are block specials.
+.TP
+.B \-c
+Test that files are character specials.
+.TP
+.B \-d
+Test that files are directories.
+.TP
+.B \-e
+Test that files exist.
+.TP
+.B \-f
+Test that files are regular files.
+.TP
+.B \-g
+Test that files have their set-group-ID flag set.
+.TP
+.B \-h
+Test that files are symbolic links.
+.TP
+.B \-l
+Test the contents of a directory given as an argument.
+.TP
+.BI \-n " file"
+Test that files are newer than
+.IR file .
+.TP
+.BI \-o " file"
+Test that files are older than
+.IR file .
+.TP
+.B \-p
+Test that files are named pipes.
+.TP
+.B \-q
+No files are printed, only the exit status is returned.
+.TP
+.B \-r
+Test that files are readable.
+.TP
+.B \-s
+Test that files are not empty.
+.TP
+.B \-u
+Test that files have their set-user-ID flag set.
+.TP
+.B \-v
+Invert the sense of tests, only failing files pass.
+.TP
+.B \-w
+Test that files are writable.
+.TP
+.B \-x
+Test that files are executable.
+.SH EXIT STATUS
+.TP
+.B 0
+At least one file passed all tests.
+.TP
+.B 1
+No files passed all tests.
+.TP
+.B 2
+An error occurred.
+.SH SEE ALSO
+.IR dmenu (1),
+.IR test (1)
blob - /dev/null
blob + e27d3a5e571c3542106f14ee9a2b1f4fbc26dd9b (mode 644)
--- /dev/null
+++ dmenu/stest.c
@@ -0,0 +1,109 @@
+/* See LICENSE file for copyright and license details. */
+#include <sys/stat.h>
+
+#include <dirent.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "arg.h"
+char *argv0;
+
+#define FLAG(x)  (flag[(x)-'a'])
+
+static void test(const char *, const char *);
+static void usage(void);
+
+static int match = 0;
+static int flag[26];
+static struct stat old, new;
+
+static void
+test(const char *path, const char *name)
+{
+	struct stat st, ln;
+
+	if ((!stat(path, &st) && (FLAG('a') || name[0] != '.')        /* hidden files      */
+	&& (!FLAG('b') || S_ISBLK(st.st_mode))                        /* block special     */
+	&& (!FLAG('c') || S_ISCHR(st.st_mode))                        /* character special */
+	&& (!FLAG('d') || S_ISDIR(st.st_mode))                        /* directory         */
+	&& (!FLAG('e') || access(path, F_OK) == 0)                    /* exists            */
+	&& (!FLAG('f') || S_ISREG(st.st_mode))                        /* regular file      */
+	&& (!FLAG('g') || st.st_mode & S_ISGID)                       /* set-group-id flag */
+	&& (!FLAG('h') || (!lstat(path, &ln) && S_ISLNK(ln.st_mode))) /* symbolic link     */
+	&& (!FLAG('n') || st.st_mtime > new.st_mtime)                 /* newer than file   */
+	&& (!FLAG('o') || st.st_mtime < old.st_mtime)                 /* older than file   */
+	&& (!FLAG('p') || S_ISFIFO(st.st_mode))                       /* named pipe        */
+	&& (!FLAG('r') || access(path, R_OK) == 0)                    /* readable          */
+	&& (!FLAG('s') || st.st_size > 0)                             /* not empty         */
+	&& (!FLAG('u') || st.st_mode & S_ISUID)                       /* set-user-id flag  */
+	&& (!FLAG('w') || access(path, W_OK) == 0)                    /* writable          */
+	&& (!FLAG('x') || access(path, X_OK) == 0)) != FLAG('v')) {   /* executable        */
+		if (FLAG('q'))
+			exit(0);
+		match = 1;
+		puts(name);
+	}
+}
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: %s [-abcdefghlpqrsuvwx] "
+	        "[-n file] [-o file] [file...]\n", argv0);
+	exit(2); /* like test(1) return > 1 on error */
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct dirent *d;
+	char path[PATH_MAX], *line = NULL, *file;
+	size_t linesiz = 0;
+	ssize_t n;
+	DIR *dir;
+	int r;
+
+	ARGBEGIN {
+	case 'n': /* newer than file */
+	case 'o': /* older than file */
+		file = EARGF(usage());
+		if (!(FLAG(ARGC()) = !stat(file, (ARGC() == 'n' ? &new : &old))))
+			perror(file);
+		break;
+	default:
+		/* miscellaneous operators */
+		if (strchr("abcdefghlpqrsuvwx", ARGC()))
+			FLAG(ARGC()) = 1;
+		else
+			usage(); /* unknown flag */
+	} ARGEND;
+
+	if (!argc) {
+		/* read list from stdin */
+		while ((n = getline(&line, &linesiz, stdin)) > 0) {
+			if (line[n - 1] == '\n')
+				line[n - 1] = '\0';
+			test(line, line);
+		}
+		free(line);
+	} else {
+		for (; argc; argc--, argv++) {
+			if (FLAG('l') && (dir = opendir(*argv))) {
+				/* test directory contents */
+				while ((d = readdir(dir))) {
+					r = snprintf(path, sizeof path, "%s/%s",
+					             *argv, d->d_name);
+					if (r >= 0 && (size_t)r < sizeof path)
+						test(path, d->d_name);
+				}
+				closedir(dir);
+			} else {
+				test(*argv, *argv);
+			}
+		}
+	}
+	return match ? 0 : 1;
+}
blob - /dev/null
blob + 96b82c980c4ce304d329fc60e582379ab0400993 (mode 644)
--- /dev/null
+++ dmenu/util.c
@@ -0,0 +1,36 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+
+void
+die(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	} else {
+		fputc('\n', stderr);
+	}
+
+	exit(1);
+}
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		die("calloc:");
+	return p;
+}
blob - /dev/null
blob + f633b5173ad2b5058d48574d5a18fe3f135c4193 (mode 644)
--- /dev/null
+++ dmenu/util.h
@@ -0,0 +1,8 @@
+/* See LICENSE file for copyright and license details. */
+
+#define MAX(A, B)               ((A) > (B) ? (A) : (B))
+#define MIN(A, B)               ((A) < (B) ? (A) : (B))
+#define BETWEEN(X, A, B)        ((A) <= (X) && (X) <= (B))
+
+void die(const char *fmt, ...);
+void *ecalloc(size_t nmemb, size_t size);
blob - /dev/null
blob + 995172fa4da0ef9ea34293abdfc01837dc4246b6 (mode 644)
--- /dev/null
+++ dwm/LICENSE
@@ -0,0 +1,38 @@
+MIT/X Consortium License
+
+© 2006-2019 Anselm R Garbe <anselm@garbe.ca>
+© 2006-2009 Jukka Salmi <jukka at salmi dot ch>
+© 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
+© 2007-2011 Peter Hartlich <sgkkr at hartlich dot com>
+© 2007-2009 Szabolcs Nagy <nszabolcs at gmail dot com>
+© 2007-2009 Christof Musik <christof at sendfax dot de>
+© 2007-2009 Premysl Hruby <dfenze at gmail dot com>
+© 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
+© 2008 Martin Hurton <martin dot hurton at gmail dot com>
+© 2008 Neale Pickett <neale dot woozle dot org>
+© 2009 Mate Nagy <mnagy at port70 dot net>
+© 2010-2016 Hiltjo Posthuma <hiltjo@codemadness.org>
+© 2010-2012 Connor Lane Smith <cls@lubutu.com>
+© 2011 Christoph Lohmann <20h@r-36.net>
+© 2015-2016 Quentin Rameau <quinq@fifth.space>
+© 2015-2016 Eric Pruitt <eric.pruitt@gmail.com>
+© 2016-2017 Markus Teich <markus.teich@stusta.mhn.de>
+© 2020-2022 Chris Down <chris@chrisdown.name>
+
+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.
blob - /dev/null
blob + 8e1bcec517b320bc11dd96c579c8b121856256b3 (mode 644)
--- /dev/null
+++ dwm/config.def.h
@@ -0,0 +1,155 @@
+/* See LICENSE file for copyright and license details. */
+
+/* appearance */
+static const unsigned int borderpx  = 3;        /* border pixel of windows */
+static const unsigned int gappx     = 5;        /* gaps between windows */
+static const unsigned int snap      = 32;       /* snap pixel */
+static const int showbar            = 1;        /* 0 means no bar */
+static const int topbar             = 1;        /* 0 means bottom bar */
+static const int focusonwheel       = 0;
+static const char *fonts[]          = { "monospace:size=6" };
+static const char dmenufont[]       = "monospace:size=6";
+static const char col_gray1[]       = "#222222";
+static const char col_gray2[]       = "#444444";
+static const char col_gray3[]       = "#bbbbbb";
+static const char col_gray4[]       = "#eeeeee";
+static const char col_cyan[]        = "#2255ff";
+static const char *colors[][3]      = {
+	/*               fg         bg         border   */
+	[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
+	[SchemeSel]  = { col_gray4, col_cyan,  col_cyan  },
+};
+
+/* tagging */
+static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
+
+static const Rule rules[] = {
+	/* xprop(1):
+	 *	WM_CLASS(STRING) = instance, class
+	 *	WM_NAME(STRING) = title
+	 */
+	/* class				instance    title	tags mask	isfloating   monitor */
+	{ "Firefox", 				NULL,	NULL,	1 << 8,		0,			-1 },
+	{ "firefox", 				NULL,	NULL,	1 << 8,		0,			-1 },
+	{ "firefox-default", 		NULL,	NULL,	1 << 8,		0,			-1 },
+	{ "tabbed",					NULL,	NULL,	1 << 8,		0,			-1 },
+	{ "thunderbird",			NULL,	NULL,	1 << 7,		0,			-1 },
+	{ "thunderbird-default",	NULL,	NULL,	1 << 7,		0,			-1 },
+	{ "Signal",					NULL,	NULL,	1 << 6,		0,			-1 },
+	{ "Nextcloud",				NULL,	NULL,	1 << 5,		1,			-1 },
+	{ NULL,						"qemu",	NULL,	0,	    	1,			-1 },
+};
+
+/* layout(s) */
+static const float mfact     = 0.55; /* factor of master area size [0.05..0.95] */
+static const int nmaster     = 1;    /* number of clients in master area */
+static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
+static const int lockfullscreen = 1; /* 1 will force focus on the fullscreen window */
+
+static const Layout layouts[] = {
+	/* symbol     arrange function */
+	{ "[]=",      tile },    /* first entry is default */
+	{ "><>",      NULL },    /* no layout function means floating behavior */
+	{ "[M]",      monocle },
+};
+
+/* key definitions */
+#define MODKEY Mod4Mask
+#define TAGKEYS(KEY,TAG) \
+	{ MODKEY,                       KEY,      view,           {.ui = 1 << TAG} }, \
+	{ MODKEY|ControlMask,           KEY,      toggleview,     {.ui = 1 << TAG} }, \
+	{ MODKEY|ShiftMask,             KEY,      tag,            {.ui = 1 << TAG} }, \
+	{ MODKEY|ControlMask|ShiftMask, KEY,      toggletag,      {.ui = 1 << TAG} },
+
+/* helper for spawning shell commands in the pre dwm-5.0 fashion */
+#define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }
+
+/* commands */
+#define DMENU_ARGS "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4
+static const char *dmenucmd[] = { "dmenu_run", DMENU_ARGS, NULL };
+static const char *termcmd[]  = { "st", NULL };
+static const char *slockcmd[] = { "pkill", "-USR1", "xidle", NULL };
+
+#define script(...) ((const char *[]){ "/bin/sh", PREFIX "/libexec/dwm/scripts/" __VA_ARGS__, NULL })
+#define dmscript(...) script(__VA_ARGS__, DMENU_ARGS)
+#define runst(...) ((const char *[]){ "st", "-e", __VA_ARGS__, NULL })
+
+static const Key keys[] = {
+	/* modifier                     key        function        argument */
+	{ MODKEY,                       XK_p,      spawn,          	{.v = dmenucmd } },
+	{ MODKEY|ShiftMask,             XK_p,      spawn,          	{.v = dmscript("dmenu_pass", "paste") } },
+	{ MODKEY|ControlMask,           XK_p,      spawn,          	{.v = dmscript("dmenu_pass", "copy") } },
+	{ MODKEY,           			XK_a,      spawn,          	{.v = dmscript("dmenu_login", "Tab") } },
+	{ MODKEY|ShiftMask,           	XK_a,      spawn,          	{.v = dmscript("dmenu_login", "Enter") } },
+	{ MODKEY,						XK_i,	   spawn,		   	{.v = dmscript("dmenu_insert") }},
+	{ MODKEY|ShiftMask,				XK_i,	   spawn,		   	{.v = script("add_snippet") }},
+	{ MODKEY,						XK_s,	   spawn,		   	{.v = dmscript("dmenu_surf") }},
+	{ MODKEY|ShiftMask,				XK_s,	   spawn,		   	{.v = dmscript("dmenu_surf_history") }},
+	{ MODKEY|ControlMask,			XK_s,	   spawn,		   	{.v = dmscript("dmenu_schule") }},
+	{ MODKEY|ShiftMask,				XK_m,	   spawn,		   	{.v = dmscript("dmenu_man") }},
+	{ MODKEY|ControlMask,			XK_h,	   spawn,		   	{.v = runst("htop") }},
+	{ MODKEY,						XK_c,	   spawn,		   	{.v = runst("env", "LC_ALL=C", "qalc") }},
+	{ MODKEY,						XK_Escape, spawn,	   		{.v = slockcmd } },
+	{ MODKEY|ShiftMask,				XK_Escape, spawn,	   		{.v = dmscript("dmenu_power") } },
+	{ MODKEY,             			XK_Return, spawn,          	{.v = termcmd } },
+	{ MODKEY|ShiftMask,             XK_Return, spawn,          	{.v = script("launch-tabbed-st") } },
+	{ MODKEY|ShiftMask,				XK_t,      spawn,           {.v = script("toggle_touchpad")} },
+	{ MODKEY,                       XK_b,      togglebar,      	{0} },
+	{ MODKEY,                       XK_j,      focusstack,     	{.i = +1 } },
+	{ MODKEY,                       XK_k,      focusstack,     	{.i = -1 } },
+	{ MODKEY|ShiftMask,             XK_j,      inplacerotate,  	{.i = +1} },
+	{ MODKEY|ShiftMask,             XK_k,      inplacerotate,  	{.i = -1} },
+	{ MODKEY|ShiftMask,             XK_h,      inplacerotate,  	{.i = +2} },
+	{ MODKEY|ShiftMask,             XK_l,      inplacerotate,  	{.i = -2} },
+	//{ MODKEY,                       XK_i,      incnmaster,     {.i = +1 } },
+	//{ MODKEY,                       XK_d,      incnmaster,     {.i = -1 } },
+	{ MODKEY,                       XK_h,      setmfact,       	{.f = -0.05} },
+	{ MODKEY,                       XK_l,      setmfact,       	{.f = +0.05} },
+	//{ MODKEY,                       XK_Return, zoom,           {0} },
+	{ MODKEY,                       XK_Tab,    view,           	{0} },
+	{ MODKEY,             			XK_q,      killclient,     	{0} },
+	{ MODKEY,                       XK_t,      setlayout,      	{.v = &layouts[0]} },
+	{ MODKEY,                       XK_f,      setlayout,      	{.v = &layouts[1]} },
+	{ MODKEY,                       XK_m,      setlayout,      	{.v = &layouts[2]} },
+	//{ MODKEY,                       XK_space,  setlayout,      	{0} },
+	{ MODKEY|ShiftMask,             XK_space,  togglefloating, 	{0} },
+	{ MODKEY,                       XK_0,      view,           	{.ui = ~0 } },
+	{ MODKEY|ShiftMask,             XK_0,      tag,            	{.ui = ~0 } },
+	{ MODKEY,                       XK_comma,  focusmon,       	{.i = -1 } },
+	{ MODKEY,                       XK_period, focusmon,       	{.i = +1 } },
+	{ MODKEY|ShiftMask,             XK_comma,  tagfocusmon,     {.i = -1 } },
+	{ MODKEY|ShiftMask,             XK_period, tagfocusmon,     {.i = +1 } },
+	{ MODKEY,                       XK_minus,  setgaps,        	{.i = -1 } },
+	{ MODKEY,                       XK_plus,  setgaps,        	{.i = +1 } },
+	{ MODKEY|ShiftMask,             XK_plus,  setgaps,        	{.i = 0  } },
+	TAGKEYS(                        XK_1,                      	0)
+	TAGKEYS(                        XK_2,                      	1)
+	TAGKEYS(                        XK_3,                      	2)
+	TAGKEYS(                        XK_4,                      	3)
+	TAGKEYS(                        XK_5,                      	4)
+	TAGKEYS(                        XK_6,                      	5)
+	TAGKEYS(                        XK_7,                      	6)
+	TAGKEYS(                        XK_8,                      	7)
+	TAGKEYS(                        XK_9,                      	8)
+	{ MODKEY|ShiftMask,             XK_q,      quit,           	{0} },
+	{ MODKEY|ShiftMask,				XK_r,      quit,           	{1} }, 
+};
+
+/* button definitions */
+/* click can be ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, ClkClientWin, or ClkRootWin */
+static const Button buttons[] = {
+	/* click                event mask      button          function        argument */
+	{ ClkLtSymbol,          0,              Button1,        setlayout,      {0} },
+	{ ClkLtSymbol,          0,              Button3,        setlayout,      {.v = &layouts[2]} },
+	{ ClkWinTitle,          0,              Button2,        zoom,           {0} },
+	{ ClkStatusText,        0,              Button2,        spawn,          {.v = termcmd } },
+	{ ClkClientWin,         MODKEY,         Button1,        movemouse,      {0} },
+	{ ClkClientWin,         MODKEY,         Button2,        togglefloating, {0} },
+	{ ClkClientWin,         MODKEY,         Button3,        resizemouse,    {0} },
+	{ ClkTagBar,            0,              Button1,        view,           {0} },
+	{ ClkTagBar,            0,              Button3,        toggleview,     {0} },
+	{ ClkTagBar,            MODKEY,         Button1,        tag,            {0} },
+	{ ClkTagBar,            MODKEY,         Button3,        toggletag,      {0} },
+};
+
+/* vim: set tabstop=4:shiftwidth=4: */
blob - /dev/null
blob + d19e3ed9d7273177c6ff9ed106822c6877ab8a9a (mode 644)
--- /dev/null
+++ dwm/config.h
@@ -0,0 +1,154 @@
+/* See LICENSE file for copyright and license details. */
+
+/* appearance */
+static const unsigned int borderpx	= 3;        /* border pixel of windows */
+static const unsigned int gappx		= 5;        /* gaps between windows */
+static const unsigned int snap		= 32;       /* snap pixel */
+static const int showbar		= 1;        /* 0 means no bar */
+static const int topbar			= 1;        /* 0 means bottom bar */
+static const int focusonwheel		= 0;
+static const char *fonts[]		= { "monospace:size=6" };
+static const char dmenufont[]		= "monospace:size=6";
+static const char col_gray1[]		= "#222222";
+static const char col_gray2[]		= "#444444";
+static const char col_gray3[]		= "#bbbbbb";
+static const char col_gray4[]		= "#eeeeee";
+static const char col_cyan[]		= "#2255ff";
+static const char *colors[][3]		= {
+	/*               fg         bg         border   */
+	[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
+	[SchemeSel]  = { col_gray4, col_cyan,  col_cyan  },
+};
+
+/* tagging */
+static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
+
+static const Rule rules[] = {
+	/* xprop(1):
+	 *	WM_CLASS(STRING) = instance, class
+	 *	WM_NAME(STRING) = title
+	 */
+	/* class			instance	title	tags mask	isfloating	monitor */
+	{ "Firefox",			NULL,		NULL,	1 << 8,		0,		-1 },
+	{ "firefox",			NULL,		NULL,	1 << 8,		0,		-1 },
+	{ "firefox-default",		NULL,		NULL,	1 << 8,		0,		-1 },
+	{ "tabbed",			NULL,		NULL,	1 << 8,		0,		-1 },
+	{ "thunderbird",		NULL,		NULL,	1 << 7,		0,		-1 },
+	{ "thunderbird-default",	NULL,		NULL,	1 << 7,		0,		-1 },
+	{ "Signal",			NULL,		NULL,	1 << 6,		0,		-1 },
+	{ "Nextcloud",			NULL,		NULL,	1 << 5,		1,		-1 },
+	{ NULL,				"qemu",		NULL,	0,		1,		-1 },
+};
+
+/* layout(s) */
+static const float mfact	= 0.55;	/* factor of master area size [0.05..0.95] */
+static const int nmaster	= 1;	/* number of clients in master area */
+static const int resizehints	= 1;	/* 1 means respect size hints in tiled resizals */
+static const int lockfullscreen	= 1;	/* 1 will force focus on the fullscreen window */
+
+static const Layout layouts[] = {
+	/* symbol     arrange function */
+	{ "[]=",      tile },    /* first entry is default */
+	{ "><>",      NULL },    /* no layout function means floating behavior */
+	{ "[M]",      monocle },
+};
+
+/* key definitions */
+#define MODKEY Mod4Mask
+#define TAGKEYS(KEY,TAG) \
+	{ MODKEY,                       KEY,      view,           {.ui = 1 << TAG} }, \
+	{ MODKEY|ControlMask,           KEY,      toggleview,     {.ui = 1 << TAG} }, \
+	{ MODKEY|ShiftMask,             KEY,      tag,            {.ui = 1 << TAG} }, \
+	{ MODKEY|ControlMask|ShiftMask, KEY,      toggletag,      {.ui = 1 << TAG} },
+
+/* helper for spawning shell commands in the pre dwm-5.0 fashion */
+#define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }
+
+/* commands */
+#define DMENU_ARGS "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4
+static const char *termcmd[]  = { "st", NULL };
+static const char *slockcmd[] = { "pkill", "-USR1", "xidle", NULL };
+
+#define script(...) ((const char *[]){ "/bin/sh", PREFIX "/libexec/desktop/" __VA_ARGS__, NULL })
+#define dmscript(...) script(__VA_ARGS__, DMENU_ARGS)
+#define runst(...) ((const char *[]){ "st", "-e", __VA_ARGS__, NULL })
+
+static const Key keys[] = {
+	/* modifier                     key		function	argument */
+	{ MODKEY,			XK_p,		spawn,		{.v = dmscript("dmenu_run") } },
+	{ MODKEY|ShiftMask,		XK_p,		spawn,		{.v = dmscript("dmenu_pass", "paste") } },
+	{ MODKEY|ControlMask,		XK_p,		spawn,		{.v = dmscript("dmenu_pass", "copy") } },
+	{ MODKEY,			XK_a,		spawn,		{.v = dmscript("dmenu_pass", "login_tab") } },
+	{ MODKEY|ShiftMask,		XK_a,		spawn,		{.v = dmscript("dmenu_pass", "login_enter") } },
+	{ MODKEY|ShiftMask,		XK_u,		spawn,		{.v = dmscript("dmenu_pass", "paste_username") } },
+	{ MODKEY|ControlMask,		XK_u,		spawn,		{.v = dmscript("dmenu_pass", "copy_username") } },
+	{ MODKEY,			XK_s,		spawn,		{.v = dmscript("dmenu_surf") }},
+	{ MODKEY|ShiftMask,		XK_s,		spawn,		{.v = dmscript("dmenu_surf_history") }},
+	{ MODKEY|ShiftMask,		XK_m,		spawn,		{.v = dmscript("dmenu_man") }},
+	{ MODKEY|ShiftMask,		XK_w,		spawn,		{.v = dmscript("dmenu_word") }},
+	{ MODKEY|ControlMask,		XK_h,		spawn,		{.v = runst("htop") }},
+	{ MODKEY,			XK_c,		spawn,		{.v = runst("env", "LC_ALL=C", "qalc") }},
+	{ MODKEY,			XK_Escape,	spawn,		{.v = slockcmd } },
+	{ MODKEY|ShiftMask,		XK_Escape,	spawn,		{.v = dmscript("dmenu_power") } },
+	{ MODKEY,			XK_Return,	spawn,		{.v = termcmd } },
+	//{ MODKEY|ShiftMask,		XK_Return,	spawn,		{.v = script("launch-tabbed-st") } },
+	{ MODKEY|ShiftMask,		XK_t,		spawn,		{.v = script("toggle_touchpad")} },
+	{ MODKEY,			XK_b,		togglebar,	{0} },
+	{ MODKEY,			XK_j,		focusstack,	{.i = +1 } },
+	{ MODKEY,			XK_k,		focusstack,	{.i = -1 } },
+	{ MODKEY|ShiftMask,		XK_j,		inplacerotate,	{.i = +1} },
+	{ MODKEY|ShiftMask,		XK_k,		inplacerotate,	{.i = -1} },
+	{ MODKEY|ShiftMask,		XK_h,		inplacerotate,	{.i = +2} },
+	{ MODKEY|ShiftMask,		XK_l,		inplacerotate,	{.i = -2} },
+	//{ MODKEY,			XK_i,		incnmaster,	{.i = +1 } },
+	//{ MODKEY,			XK_d,		incnmaster,	{.i = -1 } },
+	{ MODKEY,			XK_h,		setmfact,	{.f = -0.05} },
+	{ MODKEY,			XK_l,		setmfact,	{.f = +0.05} },
+	//{ MODKEY,			XK_Return,	zoom,		{0} },
+	{ MODKEY,			XK_Tab,		view,		{0} },
+	{ MODKEY,			XK_q,		killclient,	{0} },
+	{ MODKEY,			XK_t,		setlayout,	{.v = &layouts[0]} },
+	{ MODKEY,			XK_f,		setlayout,	{.v = &layouts[1]} },
+	{ MODKEY,			XK_m,		setlayout,	{.v = &layouts[2]} },
+	//{ MODKEY,			XK_space,	setlayout,	{0} },
+	{ MODKEY|ShiftMask,		XK_space,	togglefloating,	{0} },
+	{ MODKEY,			XK_0,		view,		{.ui = ~0 } },
+	{ MODKEY|ShiftMask,		XK_0,		tag,		{.ui = ~0 } },
+	{ MODKEY,			XK_comma,	focusmon,	{.i = -1 } },
+	{ MODKEY,			XK_period,	focusmon,	{.i = +1 } },
+	{ MODKEY|ShiftMask,		XK_comma,	tagfocusmon,	{.i = -1 } },
+	{ MODKEY|ShiftMask,		XK_period,	tagfocusmon,	{.i = +1 } },
+	{ MODKEY,			XK_minus,	setgaps,	{.i = -1 } },
+	{ MODKEY,			XK_plus,	setgaps,	{.i = +1 } },
+	{ MODKEY|ShiftMask,		XK_plus,	setgaps,	{.i = 0  } },
+	TAGKEYS(			XK_1,				0)
+	TAGKEYS(			XK_2,				1)
+	TAGKEYS(			XK_3,				2)
+	TAGKEYS(			XK_4,				3)
+	TAGKEYS(			XK_5,				4)
+	TAGKEYS(			XK_6,				5)
+	TAGKEYS(			XK_7,				6)
+	TAGKEYS(			XK_8,				7)
+	TAGKEYS(			XK_9,				8)
+	{ MODKEY|ShiftMask,		XK_q,		quit,		{0} },
+	{ MODKEY|ShiftMask,		XK_r,		quit,		{1} }, 
+};
+
+/* button definitions */
+/* click can be ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, ClkClientWin, or ClkRootWin */
+static const Button buttons[] = {
+	/* click                event mask      button          function        argument */
+	{ ClkLtSymbol,          0,              Button1,        setlayout,      {0} },
+	{ ClkLtSymbol,          0,              Button3,        setlayout,      {.v = &layouts[2]} },
+	{ ClkWinTitle,          0,              Button2,        zoom,           {0} },
+	{ ClkStatusText,        0,              Button2,        spawn,          {.v = termcmd } },
+	{ ClkClientWin,         MODKEY,         Button1,        movemouse,      {0} },
+	{ ClkClientWin,         MODKEY,         Button2,        togglefloating, {0} },
+	{ ClkClientWin,         MODKEY,         Button3,        resizemouse,    {0} },
+	{ ClkTagBar,            0,              Button1,        view,           {0} },
+	{ ClkTagBar,            0,              Button3,        toggleview,     {0} },
+	{ ClkTagBar,            MODKEY,         Button1,        tag,            {0} },
+	{ ClkTagBar,            MODKEY,         Button3,        toggletag,      {0} },
+};
+
+/* vim: set tabstop=8:shiftwidth=8: */
blob - /dev/null
blob + a58a2b4896500cd7c3b61fbdc626cd42cd9df40e (mode 644)
--- /dev/null
+++ dwm/drw.c
@@ -0,0 +1,450 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xft/Xft.h>
+
+#include "drw.h"
+#include "util.h"
+
+#define UTF_INVALID 0xFFFD
+#define UTF_SIZ     4
+
+static const unsigned char utfbyte[UTF_SIZ + 1] = {0x80,    0, 0xC0, 0xE0, 0xF0};
+static const unsigned char utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
+static const long utfmin[UTF_SIZ + 1] = {       0,    0,  0x80,  0x800,  0x10000};
+static const long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
+
+static long
+utf8decodebyte(const char c, size_t *i)
+{
+	for (*i = 0; *i < (UTF_SIZ + 1); ++(*i))
+		if (((unsigned char)c & utfmask[*i]) == utfbyte[*i])
+			return (unsigned char)c & ~utfmask[*i];
+	return 0;
+}
+
+static size_t
+utf8validate(long *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;
+}
+
+static size_t
+utf8decode(const char *c, long *u, size_t clen)
+{
+	size_t i, j, len, type;
+	long 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)
+			return j;
+	}
+	if (j < len)
+		return 0;
+	*u = udecoded;
+	utf8validate(u, len);
+
+	return len;
+}
+
+Drw *
+drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
+{
+	Drw *drw = ecalloc(1, sizeof(Drw));
+
+	drw->dpy = dpy;
+	drw->screen = screen;
+	drw->root = root;
+	drw->w = w;
+	drw->h = h;
+	drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen));
+	drw->gc = XCreateGC(dpy, root, 0, NULL);
+	XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);
+
+	return drw;
+}
+
+void
+drw_resize(Drw *drw, unsigned int w, unsigned int h)
+{
+	if (!drw)
+		return;
+
+	drw->w = w;
+	drw->h = h;
+	if (drw->drawable)
+		XFreePixmap(drw->dpy, drw->drawable);
+	drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
+}
+
+void
+drw_free(Drw *drw)
+{
+	XFreePixmap(drw->dpy, drw->drawable);
+	XFreeGC(drw->dpy, drw->gc);
+	drw_fontset_free(drw->fonts);
+	free(drw);
+}
+
+/* This function is an implementation detail. Library users should use
+ * drw_fontset_create instead.
+ */
+static Fnt *
+xfont_create(Drw *drw, const char *fontname, FcPattern *fontpattern)
+{
+	Fnt *font;
+	XftFont *xfont = NULL;
+	FcPattern *pattern = NULL;
+
+	if (fontname) {
+		/* Using the pattern found at font->xfont->pattern does not yield the
+		 * same substitution results as using the pattern returned by
+		 * FcNameParse; using the latter results in the desired fallback
+		 * behaviour whereas the former just results in missing-character
+		 * rectangles being drawn, at least with some fonts. */
+		if (!(xfont = XftFontOpenName(drw->dpy, drw->screen, fontname))) {
+			fprintf(stderr, "error, cannot load font from name: '%s'\n", fontname);
+			return NULL;
+		}
+		if (!(pattern = FcNameParse((FcChar8 *) fontname))) {
+			fprintf(stderr, "error, cannot parse font name to pattern: '%s'\n", fontname);
+			XftFontClose(drw->dpy, xfont);
+			return NULL;
+		}
+	} else if (fontpattern) {
+		if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) {
+			fprintf(stderr, "error, cannot load font from pattern.\n");
+			return NULL;
+		}
+	} else {
+		die("no font specified.");
+	}
+
+	font = ecalloc(1, sizeof(Fnt));
+	font->xfont = xfont;
+	font->pattern = pattern;
+	font->h = xfont->ascent + xfont->descent;
+	font->dpy = drw->dpy;
+
+	return font;
+}
+
+static void
+xfont_free(Fnt *font)
+{
+	if (!font)
+		return;
+	if (font->pattern)
+		FcPatternDestroy(font->pattern);
+	XftFontClose(font->dpy, font->xfont);
+	free(font);
+}
+
+Fnt*
+drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount)
+{
+	Fnt *cur, *ret = NULL;
+	size_t i;
+
+	if (!drw || !fonts)
+		return NULL;
+
+	for (i = 1; i <= fontcount; i++) {
+		if ((cur = xfont_create(drw, fonts[fontcount - i], NULL))) {
+			cur->next = ret;
+			ret = cur;
+		}
+	}
+	return (drw->fonts = ret);
+}
+
+void
+drw_fontset_free(Fnt *font)
+{
+	if (font) {
+		drw_fontset_free(font->next);
+		xfont_free(font);
+	}
+}
+
+void
+drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
+{
+	if (!drw || !dest || !clrname)
+		return;
+
+	if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
+	                       DefaultColormap(drw->dpy, drw->screen),
+	                       clrname, dest))
+		die("error, cannot allocate color '%s'", clrname);
+}
+
+/* Wrapper to create color schemes. The caller has to call free(3) on the
+ * returned color scheme when done using it. */
+Clr *
+drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
+{
+	size_t i;
+	Clr *ret;
+
+	/* need at least two colors for a scheme */
+	if (!drw || !clrnames || clrcount < 2 || !(ret = ecalloc(clrcount, sizeof(XftColor))))
+		return NULL;
+
+	for (i = 0; i < clrcount; i++)
+		drw_clr_create(drw, &ret[i], clrnames[i]);
+	return ret;
+}
+
+void
+drw_setfontset(Drw *drw, Fnt *set)
+{
+	if (drw)
+		drw->fonts = set;
+}
+
+void
+drw_setscheme(Drw *drw, Clr *scm)
+{
+	if (drw)
+		drw->scheme = scm;
+}
+
+void
+drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert)
+{
+	if (!drw || !drw->scheme)
+		return;
+	XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme[ColBg].pixel : drw->scheme[ColFg].pixel);
+	if (filled)
+		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
+	else
+		XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w - 1, h - 1);
+}
+
+int
+drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert)
+{
+	int i, ty, ellipsis_x = 0;
+	unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len;
+	XftDraw *d = NULL;
+	Fnt *usedfont, *curfont, *nextfont;
+	int utf8strlen, utf8charlen, render = x || y || w || h;
+	long utf8codepoint = 0;
+	const char *utf8str;
+	FcCharSet *fccharset;
+	FcPattern *fcpattern;
+	FcPattern *match;
+	XftResult result;
+	int charexists = 0, overflow = 0;
+	/* keep track of a couple codepoints for which we have no match. */
+	enum { nomatches_len = 64 };
+	static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches;
+	static unsigned int ellipsis_width = 0;
+
+	if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts)
+		return 0;
+
+	if (!render) {
+		w = invert ? invert : ~invert;
+	} else {
+		XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
+		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
+		d = XftDrawCreate(drw->dpy, drw->drawable,
+		                  DefaultVisual(drw->dpy, drw->screen),
+		                  DefaultColormap(drw->dpy, drw->screen));
+		x += lpad;
+		w -= lpad;
+	}
+
+	usedfont = drw->fonts;
+	if (!ellipsis_width && render)
+		ellipsis_width = drw_fontset_getwidth(drw, "...");
+	while (1) {
+		ew = ellipsis_len = utf8strlen = 0;
+		utf8str = text;
+		nextfont = NULL;
+		while (*text) {
+			utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
+			for (curfont = drw->fonts; curfont; curfont = curfont->next) {
+				charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint);
+				if (charexists) {
+					drw_font_getexts(curfont, text, utf8charlen, &tmpw, NULL);
+					if (ew + ellipsis_width <= w) {
+						/* keep track where the ellipsis still fits */
+						ellipsis_x = x + ew;
+						ellipsis_w = w - ew;
+						ellipsis_len = utf8strlen;
+					}
+
+					if (ew + tmpw > w) {
+						overflow = 1;
+						/* called from drw_fontset_getwidth_clamp():
+						 * it wants the width AFTER the overflow
+						 */
+						if (!render)
+							x += tmpw;
+						else
+							utf8strlen = ellipsis_len;
+					} else if (curfont == usedfont) {
+						utf8strlen += utf8charlen;
+						text += utf8charlen;
+						ew += tmpw;
+					} else {
+						nextfont = curfont;
+					}
+					break;
+				}
+			}
+
+			if (overflow || !charexists || nextfont)
+				break;
+			else
+				charexists = 0;
+		}
+
+		if (utf8strlen) {
+			if (render) {
+				ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent;
+				XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg],
+				                  usedfont->xfont, x, ty, (XftChar8 *)utf8str, utf8strlen);
+			}
+			x += ew;
+			w -= ew;
+		}
+		if (render && overflow)
+			drw_text(drw, ellipsis_x, y, ellipsis_w, h, 0, "...", invert);
+
+		if (!*text || overflow) {
+			break;
+		} else if (nextfont) {
+			charexists = 0;
+			usedfont = nextfont;
+		} else {
+			/* Regardless of whether or not a fallback font is found, the
+			 * character must be drawn. */
+			charexists = 1;
+
+			for (i = 0; i < nomatches_len; ++i) {
+				/* avoid calling XftFontMatch if we know we won't find a match */
+				if (utf8codepoint == nomatches.codepoint[i])
+					goto no_match;
+			}
+
+			fccharset = FcCharSetCreate();
+			FcCharSetAddChar(fccharset, utf8codepoint);
+
+			if (!drw->fonts->pattern) {
+				/* Refer to the comment in xfont_create for more information. */
+				die("the first font in the cache must be loaded from a font string.");
+			}
+
+			fcpattern = FcPatternDuplicate(drw->fonts->pattern);
+			FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
+			FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue);
+
+			FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
+			FcDefaultSubstitute(fcpattern);
+			match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result);
+
+			FcCharSetDestroy(fccharset);
+			FcPatternDestroy(fcpattern);
+
+			if (match) {
+				usedfont = xfont_create(drw, NULL, match);
+				if (usedfont && XftCharExists(drw->dpy, usedfont->xfont, utf8codepoint)) {
+					for (curfont = drw->fonts; curfont->next; curfont = curfont->next)
+						; /* NOP */
+					curfont->next = usedfont;
+				} else {
+					xfont_free(usedfont);
+					nomatches.codepoint[++nomatches.idx % nomatches_len] = utf8codepoint;
+no_match:
+					usedfont = drw->fonts;
+				}
+			}
+		}
+	}
+	if (d)
+		XftDrawDestroy(d);
+
+	return x + (render ? w : 0);
+}
+
+void
+drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h)
+{
+	if (!drw)
+		return;
+
+	XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
+	XSync(drw->dpy, False);
+}
+
+unsigned int
+drw_fontset_getwidth(Drw *drw, const char *text)
+{
+	if (!drw || !drw->fonts || !text)
+		return 0;
+	return drw_text(drw, 0, 0, 0, 0, 0, text, 0);
+}
+
+unsigned int
+drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n)
+{
+	unsigned int tmp = 0;
+	if (drw && drw->fonts && text && n)
+		tmp = drw_text(drw, 0, 0, 0, 0, 0, text, n);
+	return MIN(n, tmp);
+}
+
+void
+drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h)
+{
+	XGlyphInfo ext;
+
+	if (!font || !text)
+		return;
+
+	XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext);
+	if (w)
+		*w = ext.xOff;
+	if (h)
+		*h = font->h;
+}
+
+Cur *
+drw_cur_create(Drw *drw, int shape)
+{
+	Cur *cur;
+
+	if (!drw || !(cur = ecalloc(1, sizeof(Cur))))
+		return NULL;
+
+	cur->cursor = XCreateFontCursor(drw->dpy, shape);
+
+	return cur;
+}
+
+void
+drw_cur_free(Drw *drw, Cur *cursor)
+{
+	if (!cursor)
+		return;
+
+	XFreeCursor(drw->dpy, cursor->cursor);
+	free(cursor);
+}
blob - /dev/null
blob + 64714316bd40c003eac6b722ba5256eebaacf010 (mode 644)
--- /dev/null
+++ dwm/drw.h
@@ -0,0 +1,58 @@
+/* See LICENSE file for copyright and license details. */
+
+typedef struct {
+	Cursor cursor;
+} Cur;
+
+typedef struct Fnt {
+	Display *dpy;
+	unsigned int h;
+	XftFont *xfont;
+	FcPattern *pattern;
+	struct Fnt *next;
+} Fnt;
+
+enum { ColFg, ColBg, ColBorder }; /* Clr scheme index */
+typedef XftColor Clr;
+
+typedef struct {
+	unsigned int w, h;
+	Display *dpy;
+	int screen;
+	Window root;
+	Drawable drawable;
+	GC gc;
+	Clr *scheme;
+	Fnt *fonts;
+} Drw;
+
+/* Drawable abstraction */
+Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
+void drw_resize(Drw *drw, unsigned int w, unsigned int h);
+void drw_free(Drw *drw);
+
+/* Fnt abstraction */
+Fnt *drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount);
+void drw_fontset_free(Fnt* set);
+unsigned int drw_fontset_getwidth(Drw *drw, const char *text);
+unsigned int drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n);
+void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h);
+
+/* Colorscheme abstraction */
+void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
+Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount);
+
+/* Cursor abstraction */
+Cur *drw_cur_create(Drw *drw, int shape);
+void drw_cur_free(Drw *drw, Cur *cursor);
+
+/* Drawing context manipulation */
+void drw_setfontset(Drw *drw, Fnt *set);
+void drw_setscheme(Drw *drw, Clr *scm);
+
+/* Drawing functions */
+void drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert);
+int drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert);
+
+/* Map functions */
+void drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h);
blob - /dev/null
blob + 7b6cadb4220d2664e85baa6f5a18dea2ddbb2179 (mode 644)
--- /dev/null
+++ dwm/dwm.1
@@ -0,0 +1,186 @@
+.TH DWM 1 dwm\-VERSION
+.SH NAME
+dwm \- dynamic window manager
+.SH SYNOPSIS
+.B dwm
+.RB [ \-v ]
+.SH DESCRIPTION
+dwm is a dynamic window manager for X. It manages windows in tiled, monocle
+and floating layouts. Either layout can be applied dynamically, optimising the
+environment for the application in use and the task performed.
+.P
+In tiled layouts windows are managed in a master and stacking area. The master
+area on the left contains one window by default, and the stacking area on the
+right contains all other windows. The number of master area windows can be
+adjusted from zero to an arbitrary number. In monocle layout all windows are
+maximised to the screen size. In floating layout windows can be resized and
+moved freely. Dialog windows are always managed floating, regardless of the
+layout applied.
+.P
+Windows are grouped by tags. Each window can be tagged with one or multiple
+tags. Selecting certain tags displays all windows with these tags.
+.P
+Each screen contains a small status bar which displays all available tags, the
+layout, the title of the focused window, and the text read from the root window
+name property, if the screen is focused. A floating window is indicated with an
+empty square and a maximised floating window is indicated with a filled square
+before the windows title.  The selected tags are indicated with a different
+color. The tags of the focused window are indicated with a filled square in the
+top left corner.  The tags which are applied to one or more windows are
+indicated with an empty square in the top left corner.
+.P
+dwm draws a small border around windows to indicate the focus state.
+.SH OPTIONS
+.TP
+.B \-v
+prints version information to stderr, then exits.
+.SH USAGE
+.SS Status bar
+.TP
+.B X root window name
+is read and displayed in the status text area. It can be set with the
+.BR xsetroot (1)
+command.
+.TP
+.B Button1
+click on a tag label to display all windows with that tag, click on the layout
+label toggles between tiled and floating layout.
+.TP
+.B Button3
+click on a tag label adds/removes all windows with that tag to/from the view.
+.TP
+.B Mod1\-Button1
+click on a tag label applies that tag to the focused window.
+.TP
+.B Mod1\-Button3
+click on a tag label adds/removes that tag to/from the focused window.
+.SS Keyboard commands
+.TP
+.B Mod1\-Shift\-Return
+Start
+.BR st(1).
+.TP
+.B Mod1\-p
+Spawn
+.BR dmenu(1)
+for launching other programs.
+.TP
+.B Mod1\-,
+Focus previous screen, if any.
+.TP
+.B Mod1\-.
+Focus next screen, if any.
+.TP
+.B Mod1\-Shift\-,
+Send focused window to previous screen, if any.
+.TP
+.B Mod1\-Shift\-.
+Send focused window to next screen, if any.
+.TP
+.B Mod1\-b
+Toggles bar on and off.
+.TP
+.B Mod1\-t
+Sets tiled layout.
+.TP
+.B Mod1\-f
+Sets floating layout.
+.TP
+.B Mod1\-m
+Sets monocle layout.
+.TP
+.B Mod1\-space
+Toggles between current and previous layout.
+.TP
+.B Mod1\-j
+Focus next window.
+.TP
+.B Mod1\-k
+Focus previous window.
+.TP
+.B Mod1\-i
+Increase number of windows in master area.
+.TP
+.B Mod1\-d
+Decrease number of windows in master area.
+.TP
+.B Mod1\-l
+Increase master area size.
+.TP
+.B Mod1\-h
+Decrease master area size.
+.TP
+.B Mod1\-Return
+Zooms/cycles focused window to/from master area (tiled layouts only).
+.TP
+.B Mod1\-Shift\-c
+Close focused window.
+.TP
+.B Mod1\-Shift\-space
+Toggle focused window between tiled and floating state.
+.TP
+.B Mod1\-Tab
+Toggles to the previously selected tags.
+.TP
+.B Mod1\-Shift\-[1..n]
+Apply nth tag to focused window.
+.TP
+.B Mod1\-Shift\-0
+Apply all tags to focused window.
+.TP
+.B Mod1\-Control\-Shift\-[1..n]
+Add/remove nth tag to/from focused window.
+.TP
+.B Mod1\-[1..n]
+View all windows with nth tag.
+.TP
+.B Mod1\-0
+View all windows with any tag.
+.TP
+.B Mod1\-Control\-[1..n]
+Add/remove all windows with nth tag to/from the view.
+.TP
+.B Mod1\-Shift\-q
+Quit dwm.
+.TP
+.B Mod1\-Control\-Shift\-q
+Restart dwm.
+.SS Mouse commands
+.TP
+.B Mod1\-Button1
+Move focused window while dragging. Tiled windows will be toggled to the floating state.
+.TP
+.B Mod1\-Button2
+Toggles focused window between floating and tiled state.
+.TP
+.B Mod1\-Button3
+Resize focused window while dragging. Tiled windows will be toggled to the floating state.
+.SH CUSTOMIZATION
+dwm is customized by creating a custom config.h and (re)compiling the source
+code. This keeps it fast, secure and simple.
+.SH SIGNALS
+.TP
+.B SIGHUP - 1
+Restart the dwm process.
+.TP
+.B SIGTERM - 15
+Cleanly terminate the dwm process.
+.SH SEE ALSO
+.BR dmenu (1),
+.BR st (1)
+.SH ISSUES
+Java applications which use the XToolkit/XAWT backend may draw grey windows
+only. The XToolkit/XAWT backend breaks ICCCM-compliance in recent JDK 1.5 and early
+JDK 1.6 versions, because it assumes a reparenting window manager. Possible workarounds
+are using JDK 1.4 (which doesn't contain the XToolkit/XAWT backend) or setting the
+environment variable
+.BR AWT_TOOLKIT=MToolkit
+(to use the older Motif backend instead) or running
+.B xprop -root -f _NET_WM_NAME 32a -set _NET_WM_NAME LG3D
+or
+.B wmname LG3D
+(to pretend that a non-reparenting window manager is running that the
+XToolkit/XAWT backend can recognize) or when using OpenJDK setting the environment variable
+.BR _JAVA_AWT_WM_NONREPARENTING=1 .
+.SH BUGS
+Send all bug reports with a patch to hackers@suckless.org.
blob - /dev/null
blob + 52ca6e88297272880735ad3ce4c28429648e39eb (mode 644)
--- /dev/null
+++ dwm/dwm.c
@@ -0,0 +1,2304 @@
+/* See LICENSE file for copyright and license details.
+ *
+ * dynamic window manager is designed like any other X client as well. It is
+ * driven through handling X events. In contrast to other X clients, a window
+ * manager selects for SubstructureRedirectMask on the root window, to receive
+ * events about window (dis-)appearance. Only one X connection at a time is
+ * allowed to select for this event mask.
+ *
+ * The event handlers of dwm are organized in an array which is accessed
+ * whenever a new event has been fetched. This allows event dispatching
+ * in O(1) time.
+ *
+ * Each child of the root window is called a client, except windows which have
+ * set the override_redirect flag. Clients are organized in a linked client
+ * list on each monitor, the focus history is remembered through a stack list
+ * on each monitor. Each client contains a bit array to indicate the tags of a
+ * client.
+ *
+ * Keys and tagging rules are organized as arrays and defined in config.h.
+ *
+ * To understand everything else, start reading main().
+ */
+#include <errno.h>
+#include <locale.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/Xproto.h>
+#include <X11/Xutil.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif /* XINERAMA */
+#include <X11/Xft/Xft.h>
+
+#include "drw.h"
+#include "util.h"
+
+/* macros */
+#define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
+#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
+#define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
+                               * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
+#define ISVISIBLEONTAG(C, T)    ((C->tags & T))
+#define ISVISIBLE(C)            ISVISIBLEONTAG(C, C->mon->tagset[C->mon->seltags])
+#define LENGTH(X)               (sizeof X / sizeof X[0])
+#define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
+#define WIDTH(X)                ((X)->w + 2 * (X)->bw)
+#define HEIGHT(X)               ((X)->h + 2 * (X)->bw)
+#define TAGMASK                 ((1 << LENGTH(tags)) - 1)
+#define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
+
+/* enums */
+enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
+enum { SchemeNorm, SchemeSel }; /* color schemes */
+enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
+       NetWMFullscreen, NetActiveWindow, NetWMWindowType,
+       NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
+enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
+enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
+       ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
+
+typedef union {
+	int i;
+	unsigned int ui;
+	float f;
+	const void *v;
+} Arg;
+
+typedef struct {
+	unsigned int click;
+	unsigned int mask;
+	unsigned int button;
+	void (*func)(const Arg *arg);
+	const Arg arg;
+} Button;
+
+typedef struct Monitor Monitor;
+typedef struct Client Client;
+struct Client {
+	char name[256];
+	float mina, maxa;
+	int x, y, w, h;
+	int oldx, oldy, oldw, oldh;
+	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
+	int bw, oldbw;
+	unsigned int tags;
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	Client *next;
+	Client *snext;
+	Monitor *mon;
+	Window win;
+};
+
+typedef struct {
+	unsigned int mod;
+	KeySym keysym;
+	void (*func)(const Arg *);
+	const Arg arg;
+} Key;
+
+typedef struct {
+	const char *symbol;
+	void (*arrange)(Monitor *);
+} Layout;
+
+typedef struct Pertag Pertag;
+struct Monitor {
+	char ltsymbol[16];
+	float mfact;
+	int nmaster;
+	int num;
+	int by;               /* bar geometry */
+	int mx, my, mw, mh;   /* screen size */
+	int wx, wy, ww, wh;   /* window area  */
+	int gappx;            /* gaps between windows */
+	unsigned int seltags;
+	unsigned int sellt;
+	unsigned int tagset[2];
+	int showbar;
+	int topbar;
+	Client *clients;
+	Client *sel;
+	Client *stack;
+	Monitor *next;
+	Window barwin;
+	const Layout *lt[2];
+	Pertag *pertag;
+};
+
+typedef struct {
+	const char *class;
+	const char *instance;
+	const char *title;
+	unsigned int tags;
+	int isfloating;
+	int monitor;
+} Rule;
+
+/* function declarations */
+static void applyrules(Client *c);
+static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
+static void arrange(Monitor *m);
+static void arrangemon(Monitor *m);
+static void attach(Client *c);
+static void attachaside(Client *c);
+static void attachstack(Client *c);
+static void buttonpress(XEvent *e);
+static void checkotherwm(void);
+static void cleanup(void);
+static void cleanupmon(Monitor *mon);
+static void clientmessage(XEvent *e);
+static void configure(Client *c);
+static void configurenotify(XEvent *e);
+static void configurerequest(XEvent *e);
+static Monitor *createmon(void);
+static void destroynotify(XEvent *e);
+static void detach(Client *c);
+static void detachstack(Client *c);
+static Monitor *dirtomon(int dir);
+static void drawbar(Monitor *m);
+static void drawbars(void);
+static void expose(XEvent *e);
+static void focus(Client *c);
+static void focusin(XEvent *e);
+static void focusmon(const Arg *arg);
+static void focusstack(const Arg *arg);
+static Atom getatomprop(Client *c, Atom prop);
+static int getrootptr(int *x, int *y);
+static long getstate(Window w);
+static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
+static void grabbuttons(Client *c, int focused);
+static void grabkeys(void);
+//static void incnmaster(const Arg *arg);
+static void inplacerotate(const Arg *arg);
+static void keypress(XEvent *e);
+static void killclient(const Arg *arg);
+static void manage(Window w, XWindowAttributes *wa);
+static void mappingnotify(XEvent *e);
+static void maprequest(XEvent *e);
+static void monocle(Monitor *m);
+static void movemouse(const Arg *arg);
+static Client *nexttagged(Client *c);
+static Client *nexttiled(Client *c);
+static void pop(Client *c);
+static void propertynotify(XEvent *e);
+static void quit(const Arg *arg);
+static Monitor *recttomon(int x, int y, int w, int h);
+static void resize(Client *c, int x, int y, int w, int h, int interact);
+static void resizeclient(Client *c, int x, int y, int w, int h);
+static void resizemouse(const Arg *arg);
+static void restack(Monitor *m);
+static void run(void);
+static void scan(void);
+static int sendevent(Client *c, Atom proto);
+static void sendmon(Client *c, Monitor *m);
+static void setclientstate(Client *c, long state);
+static void setfocus(Client *c);
+static void setfullscreen(Client *c, int fullscreen);
+static void setgaps(const Arg *arg);
+static void setlayout(const Arg *arg);
+static void setmfact(const Arg *arg);
+static void setup(void);
+static void seturgent(Client *c, int urg);
+static void showhide(Client *c);
+static void sigchld(int unused);
+static void sighup(int unused);
+static void sigterm(int unused);
+static void spawn(const Arg *arg);
+static void tag(const Arg *arg);
+static void tagmon(const Arg *arg);
+static void tagfocusmon(const Arg *arg);
+static void tile(Monitor *m);
+static void togglebar(const Arg *arg);
+static void togglefloating(const Arg *arg);
+static void toggletag(const Arg *arg);
+static void toggleview(const Arg *arg);
+static void unfocus(Client *c, int setfocus);
+static void unmanage(Client *c, int destroyed);
+static void unmapnotify(XEvent *e);
+static void updatebarpos(Monitor *m);
+static void updatebars(void);
+static void updateclientlist(void);
+static int updategeom(void);
+static void updatenumlockmask(void);
+static void updatesizehints(Client *c);
+static void updatestatus(void);
+static void updatetitle(Client *c);
+static void updatewindowtype(Client *c);
+static void updatewmhints(Client *c);
+static void view(const Arg *arg);
+static Client *wintoclient(Window w);
+static Monitor *wintomon(Window w);
+static int xerror(Display *dpy, XErrorEvent *ee);
+static int xerrordummy(Display *dpy, XErrorEvent *ee);
+static int xerrorstart(Display *dpy, XErrorEvent *ee);
+static void zoom(const Arg *arg);
+
+/* variables */
+static const char broken[] = "broken";
+static char stext[256];
+static int screen;
+static int sw, sh;           /* X display screen geometry width, height */
+static int bh;               /* bar height */
+static int lrpad;            /* sum of left and right padding for text */
+static int (*xerrorxlib)(Display *, XErrorEvent *);
+static unsigned int numlockmask = 0;
+static void (*handler[LASTEvent]) (XEvent *) = {
+	[ButtonPress] = buttonpress,
+	[ClientMessage] = clientmessage,
+	[ConfigureRequest] = configurerequest,
+	[ConfigureNotify] = configurenotify,
+	[DestroyNotify] = destroynotify,
+	[Expose] = expose,
+	[FocusIn] = focusin,
+	[KeyPress] = keypress,
+	[MappingNotify] = mappingnotify,
+	[MapRequest] = maprequest,
+	[PropertyNotify] = propertynotify,
+	[UnmapNotify] = unmapnotify
+};
+static Atom wmatom[WMLast], netatom[NetLast];
+static int restart = 0;
+static int running = 1;
+static Cur *cursor[CurLast];
+static Clr **scheme;
+static Display *dpy;
+static Drw *drw;
+static Monitor *mons, *selmon;
+static Window root, wmcheckwin;
+
+/* configuration, allows nested code to access above variables */
+#include "config.h"
+
+struct Pertag {
+	unsigned int curtag, prevtag; /* current and previous tag */
+	int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
+	float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
+	unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
+	const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes  */
+};
+
+/* compile-time check if all tags fit into an unsigned int bit array. */
+struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
+
+/* function implementations */
+void
+applyrules(Client *c)
+{
+	const char *class, *instance;
+	unsigned int i;
+	const Rule *r;
+	Monitor *m;
+	XClassHint ch = { NULL, NULL };
+
+	/* rule matching */
+	c->isfloating = 0;
+	c->tags = 0;
+	XGetClassHint(dpy, c->win, &ch);
+	class    = ch.res_class ? ch.res_class : broken;
+	instance = ch.res_name  ? ch.res_name  : broken;
+
+	for (i = 0; i < LENGTH(rules); i++) {
+		r = &rules[i];
+		if ((!r->title || strstr(c->name, r->title))
+		&& (!r->class || strstr(class, r->class))
+		&& (!r->instance || strstr(instance, r->instance)))
+		{
+			c->isfloating = r->isfloating;
+			c->tags |= r->tags;
+			for (m = mons; m && m->num != r->monitor; m = m->next);
+			if (m)
+				c->mon = m;
+		}
+	}
+	if (ch.res_class)
+		XFree(ch.res_class);
+	if (ch.res_name)
+		XFree(ch.res_name);
+	c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
+}
+
+int
+applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
+{
+	int baseismin;
+	Monitor *m = c->mon;
+
+	/* set minimum possible */
+	*w = MAX(1, *w);
+	*h = MAX(1, *h);
+	if (interact) {
+		if (*x > sw)
+			*x = sw - WIDTH(c);
+		if (*y > sh)
+			*y = sh - HEIGHT(c);
+		if (*x + *w + 2 * c->bw < 0)
+			*x = 0;
+		if (*y + *h + 2 * c->bw < 0)
+			*y = 0;
+	} else {
+		if (*x >= m->wx + m->ww)
+			*x = m->wx + m->ww - WIDTH(c);
+		if (*y >= m->wy + m->wh)
+			*y = m->wy + m->wh - HEIGHT(c);
+		if (*x + *w + 2 * c->bw <= m->wx)
+			*x = m->wx;
+		if (*y + *h + 2 * c->bw <= m->wy)
+			*y = m->wy;
+	}
+	if (*h < bh)
+		*h = bh;
+	if (*w < bh)
+		*w = bh;
+	if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
+		if (!c->hintsvalid)
+			updatesizehints(c);
+		/* see last two sentences in ICCCM 4.1.2.3 */
+		baseismin = c->basew == c->minw && c->baseh == c->minh;
+		if (!baseismin) { /* temporarily remove base dimensions */
+			*w -= c->basew;
+			*h -= c->baseh;
+		}
+		/* adjust for aspect limits */
+		if (c->mina > 0 && c->maxa > 0) {
+			if (c->maxa < (float)*w / *h)
+				*w = *h * c->maxa + 0.5;
+			else if (c->mina < (float)*h / *w)
+				*h = *w * c->mina + 0.5;
+		}
+		if (baseismin) { /* increment calculation requires this */
+			*w -= c->basew;
+			*h -= c->baseh;
+		}
+		/* adjust for increment value */
+		if (c->incw)
+			*w -= *w % c->incw;
+		if (c->inch)
+			*h -= *h % c->inch;
+		/* restore base dimensions */
+		*w = MAX(*w + c->basew, c->minw);
+		*h = MAX(*h + c->baseh, c->minh);
+		if (c->maxw)
+			*w = MIN(*w, c->maxw);
+		if (c->maxh)
+			*h = MIN(*h, c->maxh);
+	}
+	return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
+}
+
+void
+arrange(Monitor *m)
+{
+	if (m)
+		showhide(m->stack);
+	else for (m = mons; m; m = m->next)
+		showhide(m->stack);
+	if (m) {
+		arrangemon(m);
+		restack(m);
+	} else for (m = mons; m; m = m->next)
+		arrangemon(m);
+}
+
+void
+arrangemon(Monitor *m)
+{
+	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
+	if (m->lt[m->sellt]->arrange)
+		m->lt[m->sellt]->arrange(m);
+}
+
+void
+attach(Client *c)
+{
+	c->next = c->mon->clients;
+	c->mon->clients = c;
+}
+
+void
+attachaside(Client *c) {
+	Client *at = nexttagged(c);
+	if(!at) {
+		attach(c);
+		return;
+	}
+	c->next = at->next;
+	at->next = c;
+}
+
+void
+attachstack(Client *c)
+{
+	c->snext = c->mon->stack;
+	c->mon->stack = c;
+}
+
+void
+buttonpress(XEvent *e)
+{
+	unsigned int i, x, click;
+	Arg arg = {0};
+	Client *c;
+	Monitor *m;
+	XButtonPressedEvent *ev = &e->xbutton;
+
+	click = ClkRootWin;
+	/* focus monitor if necessary */
+	if ((m = wintomon(ev->window)) && m != selmon
+	    && (focusonwheel || (ev->button != Button4 && ev->button != Button5))) {
+		unfocus(selmon->sel, 1);
+		selmon = m;
+		focus(NULL);
+	}
+	if (ev->window == selmon->barwin) {
+		i = x = 0;
+		do
+			x += TEXTW(tags[i]);
+		while (ev->x >= x && ++i < LENGTH(tags));
+		if (i < LENGTH(tags)) {
+			click = ClkTagBar;
+			arg.ui = 1 << i;
+		} else if (ev->x < x + TEXTW(selmon->ltsymbol))
+			click = ClkLtSymbol;
+		else if (ev->x > selmon->ww - (int)TEXTW(stext))
+			click = ClkStatusText;
+		else
+			click = ClkWinTitle;
+	} else if ((c = wintoclient(ev->window))) {
+		if (focusonwheel || (ev->button != Button4 && ev->button != Button5))
+			focus(c);
+		XAllowEvents(dpy, ReplayPointer, CurrentTime);
+		click = ClkClientWin;
+	}
+	for (i = 0; i < LENGTH(buttons); i++)
+		if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
+		&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
+			buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
+}
+
+void
+checkotherwm(void)
+{
+	xerrorxlib = XSetErrorHandler(xerrorstart);
+	/* this causes an error if some other window manager is running */
+	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
+	XSync(dpy, False);
+	XSetErrorHandler(xerror);
+	XSync(dpy, False);
+}
+
+void
+cleanup(void)
+{
+	Arg a = {.ui = ~0};
+	Layout foo = { "", NULL };
+	Monitor *m;
+	size_t i;
+
+	view(&a);
+	selmon->lt[selmon->sellt] = &foo;
+	for (m = mons; m; m = m->next)
+		while (m->stack)
+			unmanage(m->stack, 0);
+	XUngrabKey(dpy, AnyKey, AnyModifier, root);
+	while (mons)
+		cleanupmon(mons);
+	for (i = 0; i < CurLast; i++)
+		drw_cur_free(drw, cursor[i]);
+	for (i = 0; i < LENGTH(colors); i++)
+		free(scheme[i]);
+	free(scheme);
+	XDestroyWindow(dpy, wmcheckwin);
+	drw_free(drw);
+	XSync(dpy, False);
+	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+	XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+}
+
+void
+cleanupmon(Monitor *mon)
+{
+	Monitor *m;
+
+	if (mon == mons)
+		mons = mons->next;
+	else {
+		for (m = mons; m && m->next != mon; m = m->next);
+		m->next = mon->next;
+	}
+	XUnmapWindow(dpy, mon->barwin);
+	XDestroyWindow(dpy, mon->barwin);
+	free(mon);
+}
+
+void
+clientmessage(XEvent *e)
+{
+	XClientMessageEvent *cme = &e->xclient;
+	Client *c = wintoclient(cme->window);
+
+	if (!c)
+		return;
+	if (cme->message_type == netatom[NetWMState]) {
+		if (cme->data.l[1] == netatom[NetWMFullscreen]
+		|| cme->data.l[2] == netatom[NetWMFullscreen])
+			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
+				|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
+	} else if (cme->message_type == netatom[NetActiveWindow]) {
+		if (c != selmon->sel && !c->isurgent)
+			seturgent(c, 1);
+	}
+}
+
+void
+configure(Client *c)
+{
+	XConfigureEvent ce;
+
+	ce.type = ConfigureNotify;
+	ce.display = dpy;
+	ce.event = c->win;
+	ce.window = c->win;
+	ce.x = c->x;
+	ce.y = c->y;
+	ce.width = c->w;
+	ce.height = c->h;
+	ce.border_width = c->bw;
+	ce.above = None;
+	ce.override_redirect = False;
+	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
+}
+
+void
+configurenotify(XEvent *e)
+{
+	Monitor *m;
+	Client *c;
+	XConfigureEvent *ev = &e->xconfigure;
+	int dirty;
+
+	/* TODO: updategeom handling sucks, needs to be simplified */
+	if (ev->window == root) {
+		dirty = (sw != ev->width || sh != ev->height);
+		sw = ev->width;
+		sh = ev->height;
+		if (updategeom() || dirty) {
+			drw_resize(drw, sw, bh);
+			updatebars();
+			for (m = mons; m; m = m->next) {
+				for (c = m->clients; c; c = c->next)
+					if (c->isfullscreen)
+						resizeclient(c, m->mx, m->my, m->mw, m->mh);
+				XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
+			}
+			focus(NULL);
+			arrange(NULL);
+		}
+	}
+}
+
+void
+configurerequest(XEvent *e)
+{
+	Client *c;
+	Monitor *m;
+	XConfigureRequestEvent *ev = &e->xconfigurerequest;
+	XWindowChanges wc;
+
+	if ((c = wintoclient(ev->window))) {
+		if (ev->value_mask & CWBorderWidth)
+			c->bw = ev->border_width;
+		else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
+			m = c->mon;
+			if (ev->value_mask & CWX) {
+				c->oldx = c->x;
+				c->x = m->mx + ev->x;
+			}
+			if (ev->value_mask & CWY) {
+				c->oldy = c->y;
+				c->y = m->my + ev->y;
+			}
+			if (ev->value_mask & CWWidth) {
+				c->oldw = c->w;
+				c->w = ev->width;
+			}
+			if (ev->value_mask & CWHeight) {
+				c->oldh = c->h;
+				c->h = ev->height;
+			}
+			if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
+				c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
+			if ((c->y + c->h) > m->my + m->mh && c->isfloating)
+				c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
+			if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
+				configure(c);
+			if (ISVISIBLE(c))
+				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
+		} else
+			configure(c);
+	} else {
+		wc.x = ev->x;
+		wc.y = ev->y;
+		wc.width = ev->width;
+		wc.height = ev->height;
+		wc.border_width = ev->border_width;
+		wc.sibling = ev->above;
+		wc.stack_mode = ev->detail;
+		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
+	}
+	XSync(dpy, False);
+}
+
+Monitor *
+createmon(void)
+{
+	Monitor *m;
+	int i;
+
+	m = ecalloc(1, sizeof(Monitor));
+	m->tagset[0] = m->tagset[1] = 1;
+	m->mfact = mfact;
+	m->nmaster = nmaster;
+	m->showbar = showbar;
+	m->topbar = topbar;
+	m->gappx = gappx;
+	m->lt[0] = &layouts[0];
+	m->lt[1] = &layouts[1 % LENGTH(layouts)];
+	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+	if (!(m->pertag = (Pertag *)calloc(1, sizeof(Pertag))))
+		die("fatal: could not malloc() %u bytes\n", sizeof(Pertag));
+	m->pertag->curtag = m->pertag->prevtag = 1;
+	for (i=0; i <= LENGTH(tags); i++) {
+		/* init nmaster */
+		m->pertag->nmasters[i] = m->nmaster;
+
+		/* init mfacts */
+		m->pertag->mfacts[i] = m->mfact;
+
+		/* init layouts */
+		m->pertag->ltidxs[i][0] = m->lt[0];
+		m->pertag->ltidxs[i][1] = m->lt[1];
+		m->pertag->sellts[i] = m->sellt;
+	}
+	return m;
+}
+
+void
+destroynotify(XEvent *e)
+{
+	Client *c;
+	XDestroyWindowEvent *ev = &e->xdestroywindow;
+
+	if ((c = wintoclient(ev->window)))
+		unmanage(c, 1);
+}
+
+void
+detach(Client *c)
+{
+	Client **tc;
+
+	for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
+	*tc = c->next;
+}
+
+void
+detachstack(Client *c)
+{
+	Client **tc, *t;
+
+	for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
+	*tc = c->snext;
+
+	if (c == c->mon->sel) {
+		for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
+		c->mon->sel = t;
+	}
+}
+
+Monitor *
+dirtomon(int dir)
+{
+	Monitor *m = NULL;
+
+	if (dir > 0) {
+		if (!(m = selmon->next))
+			m = mons;
+	} else if (selmon == mons)
+		for (m = mons; m->next; m = m->next);
+	else
+		for (m = mons; m->next != selmon; m = m->next);
+	return m;
+}
+
+void
+drawbar(Monitor *m)
+{
+	int x, w, tw = 0;
+	int boxs = drw->fonts->h / 9;
+	int boxw = drw->fonts->h / 6 + 2;
+	unsigned int i, occ = 0, urg = 0;
+	Client *c;
+
+	if (!m->showbar)
+		return;
+
+	/* draw status first so it can be overdrawn by tags later */
+	if (m == selmon) { /* status is only drawn on selected monitor */
+		drw_setscheme(drw, scheme[SchemeNorm]);
+		tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
+		drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);
+	}
+
+	for (c = m->clients; c; c = c->next) {
+		occ |= c->tags;
+		if (c->isurgent)
+			urg |= c->tags;
+	}
+	x = 0;
+	for (i = 0; i < LENGTH(tags); i++) {
+		w = TEXTW(tags[i]);
+		drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
+		drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
+		if (occ & 1 << i)
+			drw_rect(drw, x + boxs, boxs, boxw, boxw,
+				m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
+				urg & 1 << i);
+		x += w;
+	}
+	w = TEXTW(m->ltsymbol);
+	drw_setscheme(drw, scheme[SchemeNorm]);
+	x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
+
+	if ((w = m->ww - tw - x) > bh) {
+		if (m->sel) {
+			drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
+			drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
+			if (m->sel->isfloating)
+				drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
+		} else {
+			drw_setscheme(drw, scheme[SchemeNorm]);
+			drw_rect(drw, x, 0, w, bh, 1, 1);
+		}
+	}
+	drw_map(drw, m->barwin, 0, 0, m->ww, bh);
+}
+
+void
+drawbars(void)
+{
+	Monitor *m;
+
+	for (m = mons; m; m = m->next)
+		drawbar(m);
+}
+
+void
+expose(XEvent *e)
+{
+	Monitor *m;
+	XExposeEvent *ev = &e->xexpose;
+
+	if (ev->count == 0 && (m = wintomon(ev->window)))
+		drawbar(m);
+}
+
+void
+focus(Client *c)
+{
+	if (!c || !ISVISIBLE(c))
+		for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
+	if (selmon->sel && selmon->sel != c)
+		unfocus(selmon->sel, 0);
+	if (c) {
+		if (c->mon != selmon)
+			selmon = c->mon;
+		if (c->isurgent)
+			seturgent(c, 0);
+		detachstack(c);
+		attachstack(c);
+		grabbuttons(c, 1);
+		XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
+		setfocus(c);
+	} else {
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+	}
+	selmon->sel = c;
+	drawbars();
+}
+
+/* there are some broken focus acquiring clients needing extra handling */
+void
+focusin(XEvent *e)
+{
+	XFocusChangeEvent *ev = &e->xfocus;
+
+	if (selmon->sel && ev->window != selmon->sel->win)
+		setfocus(selmon->sel);
+}
+
+void
+focusmon(const Arg *arg)
+{
+	Monitor *m;
+
+	if (!mons->next)
+		return;
+	if ((m = dirtomon(arg->i)) == selmon)
+		return;
+	unfocus(selmon->sel, 0);
+	selmon = m;
+	focus(NULL);
+}
+
+void
+focusstack(const Arg *arg)
+{
+	Client *c = NULL, *i;
+
+	if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
+		return;
+	if (arg->i > 0) {
+		for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
+		if (!c)
+			for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
+	} else {
+		for (i = selmon->clients; i != selmon->sel; i = i->next)
+			if (ISVISIBLE(i))
+				c = i;
+		if (!c)
+			for (; i; i = i->next)
+				if (ISVISIBLE(i))
+					c = i;
+	}
+	if (c) {
+		focus(c);
+		restack(selmon);
+	}
+}
+
+Atom
+getatomprop(Client *c, Atom prop)
+{
+	int di;
+	unsigned long dl;
+	unsigned char *p = NULL;
+	Atom da, atom = None;
+
+	if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
+		&da, &di, &dl, &dl, &p) == Success && p) {
+		atom = *(Atom *)p;
+		XFree(p);
+	}
+	return atom;
+}
+
+int
+getrootptr(int *x, int *y)
+{
+	int di;
+	unsigned int dui;
+	Window dummy;
+
+	return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
+}
+
+long
+getstate(Window w)
+{
+	int format;
+	long result = -1;
+	unsigned char *p = NULL;
+	unsigned long n, extra;
+	Atom real;
+
+	if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
+		&real, &format, &n, &extra, (unsigned char **)&p) != Success)
+		return -1;
+	if (n != 0)
+		result = *p;
+	XFree(p);
+	return result;
+}
+
+int
+gettextprop(Window w, Atom atom, char *text, unsigned int size)
+{
+	char **list = NULL;
+	int n;
+	XTextProperty name;
+
+	if (!text || size == 0)
+		return 0;
+	text[0] = '\0';
+	if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
+		return 0;
+	if (name.encoding == XA_STRING) {
+		strncpy(text, (char *)name.value, size - 1);
+	} else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
+		strncpy(text, *list, size - 1);
+		XFreeStringList(list);
+	}
+	text[size - 1] = '\0';
+	XFree(name.value);
+	return 1;
+}
+
+void
+grabbuttons(Client *c, int focused)
+{
+	updatenumlockmask();
+	{
+		unsigned int i, j;
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+		if (!focused)
+			XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
+				BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
+		for (i = 0; i < LENGTH(buttons); i++)
+			if (buttons[i].click == ClkClientWin)
+				for (j = 0; j < LENGTH(modifiers); j++)
+					XGrabButton(dpy, buttons[i].button,
+						buttons[i].mask | modifiers[j],
+						c->win, False, BUTTONMASK,
+						GrabModeAsync, GrabModeSync, None, None);
+	}
+}
+
+void
+grabkeys(void)
+{
+	updatenumlockmask();
+	{
+		unsigned int i, j;
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+		KeyCode code;
+
+		XUngrabKey(dpy, AnyKey, AnyModifier, root);
+		for (i = 0; i < LENGTH(keys); i++)
+			if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
+				for (j = 0; j < LENGTH(modifiers); j++)
+					XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
+						True, GrabModeAsync, GrabModeAsync);
+	}
+}
+
+/*void
+incnmaster(const Arg *arg)
+{
+	(void)arg;
+	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
+	arrange(selmon);
+}*/
+
+#ifdef XINERAMA
+static int
+isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
+{
+	while (n--)
+		if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
+		&& unique[n].width == info->width && unique[n].height == info->height)
+			return 0;
+	return 1;
+}
+#endif /* XINERAMA */
+
+void
+keypress(XEvent *e)
+{
+	unsigned int i;
+	KeySym keysym;
+	XKeyEvent *ev;
+
+	ev = &e->xkey;
+	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
+	for (i = 0; i < LENGTH(keys); i++)
+		if (keysym == keys[i].keysym
+		&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
+		&& keys[i].func)
+			keys[i].func(&(keys[i].arg));
+}
+
+void
+killclient(const Arg *arg)
+{
+	if (!selmon->sel)
+		return;
+	if (!sendevent(selmon->sel, wmatom[WMDelete])) {
+		XGrabServer(dpy);
+		XSetErrorHandler(xerrordummy);
+		XSetCloseDownMode(dpy, DestroyAll);
+		XKillClient(dpy, selmon->sel->win);
+		XSync(dpy, False);
+		XSetErrorHandler(xerror);
+		XUngrabServer(dpy);
+	}
+}
+
+void
+manage(Window w, XWindowAttributes *wa)
+{
+	Client *c, *t = NULL;
+	Window trans = None;
+	XWindowChanges wc;
+
+	c = ecalloc(1, sizeof(Client));
+	c->win = w;
+	/* geometry */
+	c->x = c->oldx = wa->x;
+	c->y = c->oldy = wa->y;
+	c->w = c->oldw = wa->width;
+	c->h = c->oldh = wa->height;
+	c->oldbw = wa->border_width;
+
+	updatetitle(c);
+	if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
+		c->mon = t->mon;
+		c->tags = t->tags;
+	} else {
+		c->mon = selmon;
+		applyrules(c);
+	}
+
+	if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
+		c->x = c->mon->wx + c->mon->ww - WIDTH(c);
+	if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
+		c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
+	c->x = MAX(c->x, c->mon->wx);
+	c->y = MAX(c->y, c->mon->wy);
+	c->bw = borderpx;
+
+	wc.border_width = c->bw;
+	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
+	XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
+	configure(c); /* propagates border_width, if size doesn't change */
+	updatewindowtype(c);
+	updatesizehints(c);
+	updatewmhints(c);
+	c->x = c->mon->mx + (c->mon->mw - WIDTH(c)) / 2;
+	c->y = c->mon->my + (c->mon->mh - HEIGHT(c)) / 2;
+	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
+	grabbuttons(c, 0);
+	if (!c->isfloating)
+		c->isfloating = c->oldstate = trans != None || c->isfixed;
+	if (c->isfloating)
+		XRaiseWindow(dpy, c->win);
+	attachaside(c);
+	attachstack(c);
+	XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
+		(unsigned char *) &(c->win), 1);
+	XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
+	setclientstate(c, NormalState);
+	if (c->mon == selmon)
+		unfocus(selmon->sel, 0);
+	c->mon->sel = c;
+	arrange(c->mon);
+	XMapWindow(dpy, c->win);
+	focus(NULL);
+}
+
+void
+mappingnotify(XEvent *e)
+{
+	XMappingEvent *ev = &e->xmapping;
+
+	XRefreshKeyboardMapping(ev);
+	if (ev->request == MappingKeyboard)
+		grabkeys();
+}
+
+void
+maprequest(XEvent *e)
+{
+	static XWindowAttributes wa;
+	XMapRequestEvent *ev = &e->xmaprequest;
+
+	if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
+		return;
+	if (!wintoclient(ev->window))
+		manage(ev->window, &wa);
+}
+
+void
+monocle(Monitor *m)
+{
+	unsigned int n = 0;
+	Client *c;
+
+	for (c = m->clients; c; c = c->next)
+		if (ISVISIBLE(c))
+			n++;
+	if (n > 0) /* override layout symbol */
+		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
+	for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
+		resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
+}
+
+void
+movemouse(const Arg *arg)
+{
+	int x, y, ocx, ocy, nx, ny;
+	Client *c;
+	Monitor *m;
+	XEvent ev;
+	Time lasttime = 0;
+
+	if (!(c = selmon->sel))
+		return;
+	if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
+		return;
+	restack(selmon);
+	ocx = c->x;
+	ocy = c->y;
+	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+		None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
+		return;
+	if (!getrootptr(&x, &y))
+		return;
+	do {
+		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
+		switch(ev.type) {
+		case ConfigureRequest:
+		case Expose:
+		case MapRequest:
+			handler[ev.type](&ev);
+			break;
+		case MotionNotify:
+			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+				continue;
+			lasttime = ev.xmotion.time;
+
+			nx = ocx + (ev.xmotion.x - x);
+			ny = ocy + (ev.xmotion.y - y);
+			if (abs(selmon->wx - nx) < snap)
+				nx = selmon->wx;
+			else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
+				nx = selmon->wx + selmon->ww - WIDTH(c);
+			if (abs(selmon->wy - ny) < snap)
+				ny = selmon->wy;
+			else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
+				ny = selmon->wy + selmon->wh - HEIGHT(c);
+			if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
+			&& (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
+				togglefloating(NULL);
+			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
+				resize(c, nx, ny, c->w, c->h, 1);
+			break;
+		}
+	} while (ev.type != ButtonRelease);
+	XUngrabPointer(dpy, CurrentTime);
+	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
+		sendmon(c, m);
+		selmon = m;
+		focus(NULL);
+	}
+}
+
+Client *
+nexttagged(Client *c) {
+	Client *walked = c->mon->clients;
+	for(;
+		walked && (walked->isfloating || !ISVISIBLEONTAG(walked, c->tags));
+		walked = walked->next
+	);
+	return walked;
+}
+
+Client *
+nexttiled(Client *c)
+{
+	for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
+	return c;
+}
+
+void
+pop(Client *c)
+{
+	detach(c);
+	attach(c);
+	focus(c);
+	arrange(c->mon);
+}
+
+void
+propertynotify(XEvent *e)
+{
+	Client *c;
+	Window trans;
+	XPropertyEvent *ev = &e->xproperty;
+
+	if ((ev->window == root) && (ev->atom == XA_WM_NAME))
+		updatestatus();
+	else if (ev->state == PropertyDelete)
+		return; /* ignore */
+	else if ((c = wintoclient(ev->window))) {
+		switch(ev->atom) {
+		default: break;
+		case XA_WM_TRANSIENT_FOR:
+			if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
+				(c->isfloating = (wintoclient(trans)) != NULL))
+				arrange(c->mon);
+			break;
+		case XA_WM_NORMAL_HINTS:
+			c->hintsvalid = 0;
+			break;
+		case XA_WM_HINTS:
+			updatewmhints(c);
+			drawbars();
+			break;
+		}
+		if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
+			updatetitle(c);
+			if (c == c->mon->sel)
+				drawbar(c->mon);
+		}
+		if (ev->atom == netatom[NetWMWindowType])
+			updatewindowtype(c);
+	}
+}
+
+void
+quit(const Arg *arg)
+{
+	if(arg->i) restart = 1;
+	running = 0;
+}
+
+Monitor *
+recttomon(int x, int y, int w, int h)
+{
+	Monitor *m, *r = selmon;
+	int a, area = 0;
+
+	for (m = mons; m; m = m->next)
+		if ((a = INTERSECT(x, y, w, h, m)) > area) {
+			area = a;
+			r = m;
+		}
+	return r;
+}
+
+void
+resize(Client *c, int x, int y, int w, int h, int interact)
+{
+	if (applysizehints(c, &x, &y, &w, &h, interact))
+		resizeclient(c, x, y, w, h);
+}
+
+void
+resizeclient(Client *c, int x, int y, int w, int h)
+{
+	XWindowChanges wc;
+
+	c->oldx = c->x; c->x = wc.x = x;
+	c->oldy = c->y; c->y = wc.y = y;
+	c->oldw = c->w; c->w = wc.width = w;
+	c->oldh = c->h; c->h = wc.height = h;
+	wc.border_width = c->bw;
+	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
+	configure(c);
+	XSync(dpy, False);
+}
+
+void
+resizemouse(const Arg *arg)
+{
+	int ocx, ocy, nw, nh;
+	Client *c;
+	Monitor *m;
+	XEvent ev;
+	Time lasttime = 0;
+
+	if (!(c = selmon->sel))
+		return;
+	if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
+		return;
+	restack(selmon);
+	ocx = c->x;
+	ocy = c->y;
+	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+		None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
+		return;
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+	do {
+		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
+		switch(ev.type) {
+		case ConfigureRequest:
+		case Expose:
+		case MapRequest:
+			handler[ev.type](&ev);
+			break;
+		case MotionNotify:
+			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+				continue;
+			lasttime = ev.xmotion.time;
+
+			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
+			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
+			if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
+			&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
+			{
+				if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
+				&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
+					togglefloating(NULL);
+			}
+			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
+				resize(c, c->x, c->y, nw, nh, 1);
+			break;
+		}
+	} while (ev.type != ButtonRelease);
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+	XUngrabPointer(dpy, CurrentTime);
+	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
+		sendmon(c, m);
+		selmon = m;
+		focus(NULL);
+	}
+}
+
+void
+restack(Monitor *m)
+{
+	Client *c;
+	XEvent ev;
+	XWindowChanges wc;
+
+	drawbar(m);
+	if (!m->sel)
+		return;
+	if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
+		XRaiseWindow(dpy, m->sel->win);
+	if (m->lt[m->sellt]->arrange) {
+		wc.stack_mode = Below;
+		wc.sibling = m->barwin;
+		for (c = m->stack; c; c = c->snext)
+			if (!c->isfloating && ISVISIBLE(c)) {
+				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
+				wc.sibling = c->win;
+			}
+	}
+	XSync(dpy, False);
+	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+void
+run(void)
+{
+	XEvent ev;
+	/* main event loop */
+	XSync(dpy, False);
+	while (running && !XNextEvent(dpy, &ev))
+		if (handler[ev.type])
+			handler[ev.type](&ev); /* call handler */
+}
+
+void
+scan(void)
+{
+	unsigned int i, num;
+	Window d1, d2, *wins = NULL;
+	XWindowAttributes wa;
+
+	if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
+		for (i = 0; i < num; i++) {
+			if (!XGetWindowAttributes(dpy, wins[i], &wa)
+			|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
+				continue;
+			if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
+				manage(wins[i], &wa);
+		}
+		for (i = 0; i < num; i++) { /* now the transients */
+			if (!XGetWindowAttributes(dpy, wins[i], &wa))
+				continue;
+			if (XGetTransientForHint(dpy, wins[i], &d1)
+			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
+				manage(wins[i], &wa);
+		}
+		if (wins)
+			XFree(wins);
+	}
+}
+
+void
+sendmon(Client *c, Monitor *m)
+{
+	if (c->mon == m)
+		return;
+	unfocus(c, 1);
+	detach(c);
+	detachstack(c);
+	c->mon = m;
+	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
+	attachaside(c);
+	attachstack(c);
+	focus(NULL);
+	arrange(NULL);
+}
+
+void
+setclientstate(Client *c, long state)
+{
+	long data[] = { state, None };
+
+	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
+		PropModeReplace, (unsigned char *)data, 2);
+}
+
+int
+sendevent(Client *c, Atom proto)
+{
+	int n;
+	Atom *protocols;
+	int exists = 0;
+	XEvent ev;
+
+	if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
+		while (!exists && n--)
+			exists = protocols[n] == proto;
+		XFree(protocols);
+	}
+	if (exists) {
+		ev.type = ClientMessage;
+		ev.xclient.window = c->win;
+		ev.xclient.message_type = wmatom[WMProtocols];
+		ev.xclient.format = 32;
+		ev.xclient.data.l[0] = proto;
+		ev.xclient.data.l[1] = CurrentTime;
+		XSendEvent(dpy, c->win, False, NoEventMask, &ev);
+	}
+	return exists;
+}
+
+void
+setfocus(Client *c)
+{
+	if (!c->neverfocus) {
+		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+		XChangeProperty(dpy, root, netatom[NetActiveWindow],
+			XA_WINDOW, 32, PropModeReplace,
+			(unsigned char *) &(c->win), 1);
+	}
+	sendevent(c, wmatom[WMTakeFocus]);
+}
+
+void
+setfullscreen(Client *c, int fullscreen)
+{
+	if (fullscreen && !c->isfullscreen) {
+		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
+			PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
+		c->isfullscreen = 1;
+		c->oldstate = c->isfloating;
+		c->oldbw = c->bw;
+		c->bw = 0;
+		c->isfloating = 1;
+		resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
+		XRaiseWindow(dpy, c->win);
+	} else if (!fullscreen && c->isfullscreen){
+		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
+			PropModeReplace, (unsigned char*)0, 0);
+		c->isfullscreen = 0;
+		c->isfloating = c->oldstate;
+		c->bw = c->oldbw;
+		c->x = c->oldx;
+		c->y = c->oldy;
+		c->w = c->oldw;
+		c->h = c->oldh;
+		resizeclient(c, c->x, c->y, c->w, c->h);
+		arrange(c->mon);
+	}
+}
+
+void
+setgaps(const Arg *arg)
+{
+	if ((arg->i == 0) || (selmon->gappx + arg->i < 0))
+		selmon->gappx = 0;
+	else
+		selmon->gappx += arg->i;
+	arrange(selmon);
+}
+
+void
+setlayout(const Arg *arg)
+{
+	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) {
+		selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
+		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
+	}
+	if (arg && arg->v)
+		selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
+	selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
+	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
+	if (selmon->sel)
+		arrange(selmon);
+	else
+		drawbar(selmon);
+}
+
+/* arg > 1.0 will set mfact absolutely */
+void
+setmfact(const Arg *arg)
+{
+	float f;
+
+	if (!arg || !selmon->lt[selmon->sellt]->arrange)
+		return;
+	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
+	if (f < 0.05 || f > 0.95)
+		return;
+	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
+	arrange(selmon);
+}
+
+void
+setup(void)
+{
+	int i;
+	XSetWindowAttributes wa;
+	Atom utf8string;
+
+	/* clean up any zombies immediately */
+	sigchld(0);
+
+	signal(SIGHUP, sighup);
+	signal(SIGTERM, sigterm);
+
+	/* init screen */
+	screen = DefaultScreen(dpy);
+	sw = DisplayWidth(dpy, screen);
+	sh = DisplayHeight(dpy, screen);
+	root = RootWindow(dpy, screen);
+	drw = drw_create(dpy, screen, root, sw, sh);
+	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
+		die("no fonts could be loaded.");
+	lrpad = drw->fonts->h;
+	bh = drw->fonts->h + 2;
+	updategeom();
+	/* init atoms */
+	utf8string = XInternAtom(dpy, "UTF8_STRING", False);
+	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
+	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
+	wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
+	wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
+	netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
+	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
+	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
+	netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
+	netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
+	netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
+	netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
+	netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
+	netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
+	/* init cursors */
+	cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
+	cursor[CurResize] = drw_cur_create(drw, XC_sizing);
+	cursor[CurMove] = drw_cur_create(drw, XC_fleur);
+	/* init appearance */
+	scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
+	for (i = 0; i < LENGTH(colors); i++)
+		scheme[i] = drw_scm_create(drw, colors[i], 3);
+	/* init bars */
+	updatebars();
+	updatestatus();
+	/* supporting window for NetWMCheck */
+	wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
+	XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
+		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
+	XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
+		PropModeReplace, (unsigned char *) "dwm", 3);
+	XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
+		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
+	/* EWMH support per view */
+	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
+		PropModeReplace, (unsigned char *) netatom, NetLast);
+	XDeleteProperty(dpy, root, netatom[NetClientList]);
+	/* select events */
+	wa.cursor = cursor[CurNormal]->cursor;
+	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
+		|ButtonPressMask|PointerMotionMask|EnterWindowMask
+		|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
+	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
+	XSelectInput(dpy, root, wa.event_mask);
+	grabkeys();
+	focus(NULL);
+}
+
+void
+seturgent(Client *c, int urg)
+{
+	XWMHints *wmh;
+
+	c->isurgent = urg;
+	if (!(wmh = XGetWMHints(dpy, c->win)))
+		return;
+	wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
+	XSetWMHints(dpy, c->win, wmh);
+	XFree(wmh);
+}
+
+void
+showhide(Client *c)
+{
+	if (!c)
+		return;
+	if (ISVISIBLE(c)) {
+		/* show clients top down */
+		XMoveWindow(dpy, c->win, c->x, c->y);
+		if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
+			resize(c, c->x, c->y, c->w, c->h, 0);
+		showhide(c->snext);
+	} else {
+		/* hide clients bottom up */
+		showhide(c->snext);
+		XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
+	}
+}
+
+void
+sigchld(int unused)
+{
+	if (signal(SIGCHLD, sigchld) == SIG_ERR)
+		die("can't install SIGCHLD handler:");
+	while (0 < waitpid(-1, NULL, WNOHANG));
+}
+
+void
+sighup(int unused)
+{
+	Arg a = {.i = 1};
+	quit(&a);
+}
+
+void
+sigterm(int unused)
+{
+	Arg a = {.i = 0};
+	quit(&a);
+}
+
+void
+spawn(const Arg *arg)
+{
+	if (fork() == 0) {
+		if (dpy)
+			close(ConnectionNumber(dpy));
+		setsid();
+		execvp(((char **)arg->v)[0], (char **)arg->v);
+		die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
+	}
+}
+
+void
+tag(const Arg *arg)
+{
+	if (selmon->sel && arg->ui & TAGMASK) {
+		selmon->sel->tags = arg->ui & TAGMASK;
+		focus(NULL);
+		arrange(selmon);
+	}
+}
+
+void
+tagmon(const Arg *arg)
+{
+	if (!selmon->sel || !mons->next)
+		return;
+	sendmon(selmon->sel, dirtomon(arg->i));
+}
+void
+tagfocusmon(const Arg *arg)
+{
+	tagmon (arg);
+	focusmon (arg);
+}
+
+void
+tile(Monitor *m)
+{
+	unsigned int i, n, h, mw, my, ty;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	if (n > m->nmaster)
+		mw = m->nmaster ? m->ww * m->mfact : 0;
+	else
+		mw = m->ww - m->gappx;
+	for (i = 0, my = ty = m->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), ++i) {
+		if (i < m->nmaster) {
+			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gappx;
+			resize(c, m->wx + m->gappx, m->wy + my, mw - (2*c->bw) - m->gappx, h - (2*c->bw), 0);
+			if (my + HEIGHT(c) < m->wh)
+				my += HEIGHT(c) + m->gappx;
+		} else {
+			h = (m->wh - ty) / (n - i) - m->gappx;
+			resize(c, m->wx + mw + m->gappx, m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->gappx, h - (2*c->bw), 0);
+			if (ty + HEIGHT(c) < m->wh)
+				ty += HEIGHT(c) + m->gappx;
+		}
+	}
+}
+
+void
+togglebar(const Arg *arg)
+{
+	selmon->showbar = !selmon->showbar;
+	updatebarpos(selmon);
+	XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
+	arrange(selmon);
+}
+
+void
+togglefloating(const Arg *arg)
+{
+	if (!selmon->sel)
+		return;
+	if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
+		return;
+	selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
+	if (selmon->sel->isfloating)
+		resize(selmon->sel, selmon->sel->x, selmon->sel->y,
+			selmon->sel->w, selmon->sel->h, 0);
+	arrange(selmon);
+}
+
+void
+toggletag(const Arg *arg)
+{
+	unsigned int newtags;
+
+	if (!selmon->sel)
+		return;
+	newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
+	if (newtags) {
+		selmon->sel->tags = newtags;
+		focus(NULL);
+		arrange(selmon);
+	}
+}
+
+void
+toggleview(const Arg *arg)
+{
+	unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
+	int i;
+
+	if (newtagset) {
+		if (newtagset == ~0) {
+			selmon->pertag->prevtag = selmon->pertag->curtag;
+			selmon->pertag->curtag = 0;
+		}
+		/* test if the user did not select the same tag */
+		if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
+			selmon->pertag->prevtag = selmon->pertag->curtag;
+			for (i=0; !(newtagset & 1 << i); i++) ;
+			selmon->pertag->curtag = i + 1;
+		}
+		selmon->tagset[selmon->seltags] = newtagset;
+
+		/* apply settings for this view */
+		selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
+		selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
+		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
+		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
+		selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
+		focus(NULL);
+		arrange(selmon);
+	}
+}
+
+void
+unfocus(Client *c, int setfocus)
+{
+	if (!c)
+		return;
+	grabbuttons(c, 0);
+	XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
+	if (setfocus) {
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+	}
+}
+
+void
+unmanage(Client *c, int destroyed)
+{
+	Monitor *m = c->mon;
+	XWindowChanges wc;
+
+	detach(c);
+	detachstack(c);
+	if (!destroyed) {
+		wc.border_width = c->oldbw;
+		XGrabServer(dpy); /* avoid race conditions */
+		XSetErrorHandler(xerrordummy);
+		XSelectInput(dpy, c->win, NoEventMask);
+		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
+		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+		setclientstate(c, WithdrawnState);
+		XSync(dpy, False);
+		XSetErrorHandler(xerror);
+		XUngrabServer(dpy);
+	}
+	free(c);
+	focus(NULL);
+	updateclientlist();
+	arrange(m);
+}
+
+void
+unmapnotify(XEvent *e)
+{
+	Client *c;
+	XUnmapEvent *ev = &e->xunmap;
+
+	if ((c = wintoclient(ev->window))) {
+		if (ev->send_event)
+			setclientstate(c, WithdrawnState);
+		else
+			unmanage(c, 0);
+	}
+}
+
+void
+updatebars(void)
+{
+	Monitor *m;
+	XSetWindowAttributes wa = {
+		.override_redirect = True,
+		.background_pixmap = ParentRelative,
+		.event_mask = ButtonPressMask|ExposureMask
+	};
+	XClassHint ch = {"dwm", "dwm"};
+	for (m = mons; m; m = m->next) {
+		if (m->barwin)
+			continue;
+		m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
+				CopyFromParent, DefaultVisual(dpy, screen),
+				CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
+		XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
+		XMapRaised(dpy, m->barwin);
+		XSetClassHint(dpy, m->barwin, &ch);
+	}
+}
+
+void
+updatebarpos(Monitor *m)
+{
+	m->wy = m->my;
+	m->wh = m->mh;
+	if (m->showbar) {
+		m->wh -= bh;
+		m->by = m->topbar ? m->wy : m->wy + m->wh;
+		m->wy = m->topbar ? m->wy + bh : m->wy;
+	} else
+		m->by = -bh;
+}
+
+void
+updateclientlist(void)
+{
+	Client *c;
+	Monitor *m;
+
+	XDeleteProperty(dpy, root, netatom[NetClientList]);
+	for (m = mons; m; m = m->next)
+		for (c = m->clients; c; c = c->next)
+			XChangeProperty(dpy, root, netatom[NetClientList],
+				XA_WINDOW, 32, PropModeAppend,
+				(unsigned char *) &(c->win), 1);
+}
+
+int
+updategeom(void)
+{
+	int dirty = 0;
+
+#ifdef XINERAMA
+	if (XineramaIsActive(dpy)) {
+		int i, j, n, nn;
+		Client *c;
+		Monitor *m;
+		XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
+		XineramaScreenInfo *unique = NULL;
+
+		for (n = 0, m = mons; m; m = m->next, n++);
+		/* only consider unique geometries as separate screens */
+		unique = ecalloc(nn, sizeof(XineramaScreenInfo));
+		for (i = 0, j = 0; i < nn; i++)
+			if (isuniquegeom(unique, j, &info[i]))
+				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
+		XFree(info);
+		nn = j;
+
+		/* new monitors if nn > n */
+		for (i = n; i < nn; i++) {
+			for (m = mons; m && m->next; m = m->next);
+			if (m)
+				m->next = createmon();
+			else
+				mons = createmon();
+		}
+		for (i = 0, m = mons; i < nn && m; m = m->next, i++)
+			if (i >= n
+			|| unique[i].x_org != m->mx || unique[i].y_org != m->my
+			|| unique[i].width != m->mw || unique[i].height != m->mh)
+			{
+				dirty = 1;
+				m->num = i;
+				m->mx = m->wx = unique[i].x_org;
+				m->my = m->wy = unique[i].y_org;
+				m->mw = m->ww = unique[i].width;
+				m->mh = m->wh = unique[i].height;
+				updatebarpos(m);
+			}
+		/* removed monitors if n > nn */
+		for (i = nn; i < n; i++) {
+			for (m = mons; m && m->next; m = m->next);
+			while ((c = m->clients)) {
+				dirty = 1;
+				m->clients = c->next;
+				detachstack(c);
+				c->mon = mons;
+				attachaside(c);
+				attachstack(c);
+			}
+			if (m == selmon)
+				selmon = mons;
+			cleanupmon(m);
+		}
+		free(unique);
+	} else
+#endif /* XINERAMA */
+	{ /* default monitor setup */
+		if (!mons)
+			mons = createmon();
+		if (mons->mw != sw || mons->mh != sh) {
+			dirty = 1;
+			mons->mw = mons->ww = sw;
+			mons->mh = mons->wh = sh;
+			updatebarpos(mons);
+		}
+	}
+	if (dirty) {
+		selmon = mons;
+		selmon = wintomon(root);
+	}
+	return dirty;
+}
+
+void
+updatenumlockmask(void)
+{
+	unsigned int i, j;
+	XModifierKeymap *modmap;
+
+	numlockmask = 0;
+	modmap = XGetModifierMapping(dpy);
+	for (i = 0; i < 8; i++)
+		for (j = 0; j < modmap->max_keypermod; j++)
+			if (modmap->modifiermap[i * modmap->max_keypermod + j]
+				== XKeysymToKeycode(dpy, XK_Num_Lock))
+				numlockmask = (1 << i);
+	XFreeModifiermap(modmap);
+}
+
+void
+updatesizehints(Client *c)
+{
+	long msize;
+	XSizeHints size;
+
+	if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
+		/* size is uninitialized, ensure that size.flags aren't used */
+		size.flags = PSize;
+	if (size.flags & PBaseSize) {
+		c->basew = size.base_width;
+		c->baseh = size.base_height;
+	} else if (size.flags & PMinSize) {
+		c->basew = size.min_width;
+		c->baseh = size.min_height;
+	} else
+		c->basew = c->baseh = 0;
+	if (size.flags & PResizeInc) {
+		c->incw = size.width_inc;
+		c->inch = size.height_inc;
+	} else
+		c->incw = c->inch = 0;
+	if (size.flags & PMaxSize) {
+		c->maxw = size.max_width;
+		c->maxh = size.max_height;
+	} else
+		c->maxw = c->maxh = 0;
+	if (size.flags & PMinSize) {
+		c->minw = size.min_width;
+		c->minh = size.min_height;
+	} else if (size.flags & PBaseSize) {
+		c->minw = size.base_width;
+		c->minh = size.base_height;
+	} else
+		c->minw = c->minh = 0;
+	if (size.flags & PAspect) {
+		c->mina = (float)size.min_aspect.y / size.min_aspect.x;
+		c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
+	} else
+		c->maxa = c->mina = 0.0;
+	c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
+	c->hintsvalid = 1;
+}
+
+void
+updatestatus(void)
+{
+	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
+		strcpy(stext, "dwm-"VERSION);
+	drawbar(selmon);
+}
+
+void
+updatetitle(Client *c)
+{
+	if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
+		gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
+	if (c->name[0] == '\0') /* hack to mark broken clients */
+		strcpy(c->name, broken);
+}
+
+void
+updatewindowtype(Client *c)
+{
+	Atom state = getatomprop(c, netatom[NetWMState]);
+	Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
+
+	if (state == netatom[NetWMFullscreen])
+		setfullscreen(c, 1);
+	if (wtype == netatom[NetWMWindowTypeDialog])
+		c->isfloating = 1;
+}
+
+void
+updatewmhints(Client *c)
+{
+	XWMHints *wmh;
+
+	if ((wmh = XGetWMHints(dpy, c->win))) {
+		if (c == selmon->sel && wmh->flags & XUrgencyHint) {
+			wmh->flags &= ~XUrgencyHint;
+			XSetWMHints(dpy, c->win, wmh);
+		} else
+			c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
+		if (wmh->flags & InputHint)
+			c->neverfocus = !wmh->input;
+		else
+			c->neverfocus = 0;
+		XFree(wmh);
+	}
+}
+
+void
+view(const Arg *arg)
+{
+	int i;
+	unsigned int tmptag;
+
+	if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
+		return;
+	selmon->seltags ^= 1; /* toggle sel tagset */
+	if (arg->ui & TAGMASK) {
+		selmon->pertag->prevtag = selmon->pertag->curtag;
+		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
+		if (arg->ui == ~0)
+			selmon->pertag->curtag = 0;
+		else {
+			for (i=0; !(arg->ui & 1 << i); i++) ;
+			selmon->pertag->curtag = i + 1;
+		}
+	} else {
+		tmptag = selmon->pertag->prevtag;
+		selmon->pertag->prevtag = selmon->pertag->curtag;
+		selmon->pertag->curtag = tmptag;
+	}
+	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
+	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
+	selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
+	selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
+	selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
+	focus(NULL);
+	arrange(selmon);
+}
+
+Client *
+wintoclient(Window w)
+{
+	Client *c;
+	Monitor *m;
+
+	for (m = mons; m; m = m->next)
+		for (c = m->clients; c; c = c->next)
+			if (c->win == w)
+				return c;
+	return NULL;
+}
+
+Monitor *
+wintomon(Window w)
+{
+	int x, y;
+	Client *c;
+	Monitor *m;
+
+	if (w == root && getrootptr(&x, &y))
+		return recttomon(x, y, 1, 1);
+	for (m = mons; m; m = m->next)
+		if (w == m->barwin)
+			return m;
+	if ((c = wintoclient(w)))
+		return c->mon;
+	return selmon;
+}
+
+/* There's no way to check accesses to destroyed windows, thus those cases are
+ * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
+ * default error handler, which may call exit. */
+int
+xerror(Display *dpy, XErrorEvent *ee)
+{
+	if (ee->error_code == BadWindow
+	|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
+	|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
+	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
+	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
+	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
+	|| (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
+	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
+	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
+		return 0;
+	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
+		ee->request_code, ee->error_code);
+	return xerrorxlib(dpy, ee); /* may call exit */
+}
+
+int
+xerrordummy(Display *dpy, XErrorEvent *ee)
+{
+	return 0;
+}
+
+/* Startup Error handler to check if another window manager
+ * is already running. */
+int
+xerrorstart(Display *dpy, XErrorEvent *ee)
+{
+	die("dwm: another window manager is already running");
+	return -1;
+}
+
+void
+zoom(const Arg *arg)
+{
+	Client *c = selmon->sel;
+
+	if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
+		return;
+	if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
+		return;
+	pop(c);
+}
+
+int
+main(int argc, char *argv[])
+{
+	if (argc == 2 && !strcmp("-v", argv[1]))
+		die("dwm-"VERSION);
+	else if (argc != 1)
+		die("usage: dwm [-v]");
+	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
+		fputs("warning: no locale support\n", stderr);
+	if (!(dpy = XOpenDisplay(NULL)))
+		die("dwm: cannot open display");
+	checkotherwm();
+	setup();
+#ifdef __OpenBSD__
+	if (pledge("stdio inet rpath proc exec", NULL) == -1)
+		die("pledge");
+#endif /* __OpenBSD__ */
+	scan();
+	run();
+	if(restart) execvp(argv[0], argv);
+	cleanup();
+	XCloseDisplay(dpy);
+	return EXIT_SUCCESS;
+}
+
+void
+insertclient(Client *item, Client *insertItem, int after) {
+	Client *c;
+	if (item == NULL || insertItem == NULL || item == insertItem) return;
+	detach(insertItem);
+	if (!after && selmon->clients == item) {
+		attach(insertItem);
+		return;
+	}
+	if (after) {
+		c = item;
+	} else {
+		for (c = selmon->clients; c; c = c->next) { if (c->next == item) break; }
+	}
+	insertItem->next = c->next;
+	c->next = insertItem;
+}
+
+void
+inplacerotate(const Arg *arg)
+{
+	if(!selmon->sel || (selmon->sel->isfloating && !arg->f)) return;
+
+	unsigned int selidx = 0, i = 0;
+	Client *c = NULL, *stail = NULL, *mhead = NULL, *mtail = NULL, *shead = NULL;
+
+	// Determine positionings for insertclient
+	for (c = selmon->clients; c; c = c->next) {
+		if (ISVISIBLE(c) && !(c->isfloating)) {
+		if (selmon->sel == c) { selidx = i; }
+		if (i == selmon->nmaster - 1) { mtail = c; }
+		if (i == selmon->nmaster) { shead = c; }
+		if (mhead == NULL) { mhead = c; }
+		stail = c;
+		i++;
+		}
+	}
+
+	// All clients rotate
+	if (arg->i == 2) insertclient(selmon->clients, stail, 0);
+	if (arg->i == -2) insertclient(stail, selmon->clients, 1);
+	// Stack xor master rotate
+	if (arg->i == -1 && selidx >= selmon->nmaster) insertclient(stail, shead, 1);
+	if (arg->i == 1 && selidx >= selmon->nmaster) insertclient(shead, stail, 0);
+	if (arg->i == -1 && selidx < selmon->nmaster)  insertclient(mtail, mhead, 1);
+	if (arg->i == 1 && selidx < selmon->nmaster)  insertclient(mhead, mtail, 0);
+
+	// Restore focus position
+	/*i = 0;
+	for (c = selmon->clients; c; c = c->next) {
+		if (!ISVISIBLE(c) || (c->isfloating)) continue;
+		if (i == selidx) { focus(c); break; }
+		i++;
+	}*/
+	arrange(selmon);
+	focus(c);
+}
blob - /dev/null
blob + 040adb5b3c94d5838689d28f7714ec23297fb30a (mode 644)
--- /dev/null
+++ dwm/transient.c
@@ -0,0 +1,42 @@
+/* cc transient.c -o transient -lX11 */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+int main(void) {
+	Display *d;
+	Window r, f, t = None;
+	XSizeHints h;
+	XEvent e;
+
+	d = XOpenDisplay(NULL);
+	if (!d)
+		exit(1);
+	r = DefaultRootWindow(d);
+
+	f = XCreateSimpleWindow(d, r, 100, 100, 400, 400, 0, 0, 0);
+	h.min_width = h.max_width = h.min_height = h.max_height = 400;
+	h.flags = PMinSize | PMaxSize;
+	XSetWMNormalHints(d, f, &h);
+	XStoreName(d, f, "floating");
+	XMapWindow(d, f);
+
+	XSelectInput(d, f, ExposureMask);
+	while (1) {
+		XNextEvent(d, &e);
+
+		if (t == None) {
+			sleep(5);
+			t = XCreateSimpleWindow(d, r, 50, 50, 100, 100, 0, 0, 0);
+			XSetTransientForHint(d, t, f);
+			XStoreName(d, t, "transient");
+			XMapWindow(d, t);
+			XSelectInput(d, t, ExposureMask);
+		}
+	}
+
+	XCloseDisplay(d);
+	exit(0);
+}
blob - /dev/null
blob + 96b82c980c4ce304d329fc60e582379ab0400993 (mode 644)
--- /dev/null
+++ dwm/util.c
@@ -0,0 +1,36 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+
+void
+die(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	} else {
+		fputc('\n', stderr);
+	}
+
+	exit(1);
+}
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		die("calloc:");
+	return p;
+}
blob - /dev/null
blob + f633b5173ad2b5058d48574d5a18fe3f135c4193 (mode 644)
--- /dev/null
+++ dwm/util.h
@@ -0,0 +1,8 @@
+/* See LICENSE file for copyright and license details. */
+
+#define MAX(A, B)               ((A) > (B) ? (A) : (B))
+#define MIN(A, B)               ((A) < (B) ? (A) : (B))
+#define BETWEEN(X, A, B)        ((A) <= (X) && (X) <= (B))
+
+void die(const char *fmt, ...);
+void *ecalloc(size_t nmemb, size_t size);
blob - /dev/null
blob + 570dea50544b6e875641110fb4722134d882f932 (mode 755)
--- /dev/null
+++ scripts/dmenu_man
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+choice=$(man -k . | dmenu -l 20 -p "Manual:" "$@" | sed 's/^\([^(]*\)(\([^)]*\)).*$/\2;\1/')
+[ -z "$choice" ] && exit 1
+
+section=$(echo "$choice" | cut -d ';' -f2)
+page=$(echo "$choice" | cut -d: -f2 | cut -d ';' -f1)
+
+st -- man "$section" "$page"
blob - /dev/null
blob + f8528d3dbfd4a54d7d0aad3a43d8d2b106ac2ca3 (mode 755)
--- /dev/null
+++ scripts/dmenu_pass
@@ -0,0 +1,68 @@
+#/bin/sh
+
+usage() {
+	echo "Usage: $0 test|paste|copy|login_enter|login_tab|paste_username|copy_username"
+	exit 1
+}
+
+paste() {
+	xdotool type "$1"
+}
+
+paste_enter() {
+	xdotool key Enter
+}
+
+paste_tab() {
+	xdotool key Tab
+}
+
+copy() {
+	echo "$1" | xclip -in -sel clipboard
+}
+
+mode=$1	# test, paste, copy, login_enter, login_tab
+
+[ -z "$mode" ] && usage
+
+cd "$HOME/.password-store"
+name=$(find . -type f -name '*.gpg' | sed 's/^\.\/\(.*\)\.gpg/\1/' | dmenu -l 10 -p Password) || exit 1
+creds=$(pass show "$name") || exit 1
+username=$(echo "$creds" | sed -n '/^username: /s///p')
+password=$(echo "$creds" | sed -n '/^password: /s///p')
+
+case "$mode" in
+test)
+	echo "Username: $username"
+	echo "Password: $password"
+	;;
+paste)
+	paste "$password"
+	paste_enter
+	;;
+copy)
+	copy "$password"
+	;;
+paste_username)
+	paste "$username"
+	paste_enter
+	;;
+copy_username)
+	copy "$username"
+	;;
+login_tab)
+	paste "$username"
+	paste_tab
+	paste "$password"
+	paste_tab
+	;;
+login_enter)
+	paste "$username"
+	paste_enter
+	paste "$password"
+	paste_enter
+	;;
+*)
+	usage
+	;;
+esac
blob - /dev/null
blob + 3a7cda79273778642accd4221aa6f1419a1f221d (mode 755)
--- /dev/null
+++ scripts/dmenu_path
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+cachedir="${XDG_CACHE_HOME:-"$HOME/.cache"}"
+cache="$cachedir/dmenu_run"
+
+[ ! -e "$cachedir" ] && mkdir -p "$cachedir"
+
+IFS=:
+if stest -dqr -n "$cache" $PATH; then
+	stest -flx $PATH | sort -u | tee "$cache"
+else
+	cat "$cache"
+fi
blob - /dev/null
blob + 1d1a951274aa289680a8bf588a63d09eadaa11d5 (mode 755)
--- /dev/null
+++ scripts/dmenu_power
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+case "$(printf 'Lock\nShutdown\nReboot\n' | dmenu -l 3 "$@")" in
+Lock)
+	slock
+	;;
+Shutdown)
+	doas shutdown -p now
+	;;
+Reboot)
+	doas reboot
+	;;
+esac
blob - /dev/null
blob + f3be64d74f1a3809d6f066a0144e152e8b5178e9 (mode 755)
--- /dev/null
+++ scripts/dmenu_run
@@ -0,0 +1,2 @@
+#!/bin/sh
+@SCRIPTS@/dmenu_path | dmenu "$@" | ${SHELL:-"/bin/sh"} &
blob - /dev/null
blob + f5dc2378ec3a57342c1027fb74815f6651f3e55a (mode 755)
--- /dev/null
+++ scripts/dmenu_surf
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+url=$(grep -vE '^\s*(#.*)?$' "$HOME/.surf/urls" | grep -E '^https?://.*$' | dmenu "$@" -l 10 -p "URL:")
+[ "$url" ] || exit 1
+
+xdg-open "$url"
blob - /dev/null
blob + 598f4b5d4e678bf4acfd653ec8894742eda5affc (mode 755)
--- /dev/null
+++ scripts/dmenu_surf_history
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+urlify() {
+	awk '
+BEGIN {
+	for (n = 0; n < 256; ++n)
+		ord[sprintf("%c", n)] = n
+}
+
+{
+	split($0, chars, "")
+	for (i=1; i <= length($0); ++i) {
+		ch = chars[i];
+		if (ch~"[a-zA-Z./_:]") {
+			printf("%c", ch);
+		} else {
+			n = ord[ch];
+			printf("%%%02x", n);
+		}
+	}
+}
+'
+}
+
+file=$HOME/.surf/history
+entry=$(grep -vE '^\s*(#.*)?$' "$file" | dmenu "$@" -l 10 -p "Search:")
+
+[ "$entry" ] || exit 1
+
+if ! grep -F "$entry" "$file"; then
+	echo "$entry" >> "$file"
+fi
+
+if ! echo "$entry" | grep -E '^https?://'; then
+	e=$(echo "$entry" | urlify)
+	entry=https://search.brave.com/search?q=$e
+fi
+
+xdg-open "$entry"
blob - /dev/null
blob + 73d4fd35c903573b1ba356439d05cf396e0e6040 (mode 755)
--- /dev/null
+++ scripts/dmenu_word
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+#choice=$(cat /usr/share/dict/{american,propernames,words} | tr '[[:upper:]]' '[[:lower:]]' | sort | uniq | dmenu -l 10)
+choice=$(dmenu -l 32 < "$HOME/.local/share/dict")
+[ "$choice" ] && xdotool type --delay 0 "$choice"
+
blob - /dev/null
blob + dc16ee5533b81651c7c0e05a023fe63d8dc525c2 (mode 755)
--- /dev/null
+++ scripts/launch-tabbed-st
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if ! pgrep tabbed >/dev/null; then
+	rm -f /tmp/tabbed.pid
+	nohup sh -c 'set -o pipefail; tabbed -r 1 echo ID 2>/dev/null | sed -n "2p;2q" > /tmp/tabbed.pid' &
+	sleep 1
+fi
+
+nohup st -w "$(cat /tmp/tabbed.pid)" -- "$@" >/dev/null 2>&1 &
blob - /dev/null
blob + 3b86818416e9bc28eb0d5bf562c96cdcbe149bfa (mode 755)
--- /dev/null
+++ scripts/launch-tabbed-surf
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if ! pgrep tabbed >/dev/null; then
+	rm -f /tmp/tabbed.pid
+	nohup sh -c 'set -o pipefail; tabbed -r 1 echo ID 2>/dev/null | sed -n "2p;2q" > /tmp/tabbed.pid' &
+	sleep 1
+fi
+
+nohup surf -e "$(cat /tmp/tabbed.pid)" -- "$@" >/dev/null 2>&1 &
blob - /dev/null
blob + dbfcc0badc3fec55d261bb12916223d0ed791678 (mode 755)
--- /dev/null
+++ scripts/restore-keybinds
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+setxkbmap de us
+xmodmap -e 'keycode 66 = Escape'
blob - /dev/null
blob + 0e1fd7b2d4bd00453a34dcf64f7cc83dde439dfd (mode 755)
--- /dev/null
+++ scripts/toggle_touchpad
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+case "$(uname)" in
+OpenBSD)
+	doas wsconsctl "mouse.tp.disable=$(doas wsconsctl mouse.tp.disable | cut -d'=' -f2 | awk '{print !$0}')"
+	;;
+*)
+	echo "Unsupported OS: $(uname)"
+	exit 1
+	;;
+esac
+
blob - /dev/null
blob + 3cbf420ca5ceda831ffaef386c05e276219577d9 (mode 644)
--- /dev/null
+++ 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.
blob - /dev/null
blob + a22e019e36f180cec5e5bb003a924f5ec11203ad (mode 644)
--- /dev/null
+++ 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
blob - /dev/null
blob + fd857807174bf0b90257bb0afd0267793042d961 (mode 644)
--- /dev/null
+++ st/config.h
@@ -0,0 +1,482 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char *font = "Liberation Mono:pixelsize=12: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 = 8;
+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 = 0.85;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+	/* 8 normal colors */
+	"#1c1f2b",
+	"#ff5370",
+	"#c3e88d",
+	"yellow3",
+	"#7986E7",
+	"#bb80b3",
+	"#80cbc4",
+	"#676E95",
+
+	/* 8 bright colors */
+	"#4E5579",
+	"#f78c6c",
+	"#44b9b1",
+	"#ffcb6b",
+	"#5c5cff",
+	"#c792ea",
+	"#89DDFF",
+	"#BFC7D5",
+
+	[255] = 0,
+
+	/* more colors can be added after 255 to use with DefaultXX */
+	"#cccccc",
+	"#555555",
+	"#BFC7D5", /* default foreground colour */
+	"#242837", /* 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;
+
+/*
+ * 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.
+ */
+const unsigned int mousescrollincrement = 5;
+static MouseShortcut mshortcuts[] = {
+	/* mask                 button   function        argument       release */
+	{ XK_ANY_MOD,           Button4, kscrollup,      {.i = mousescrollincrement} },
+	{ XK_ANY_MOD,           Button5, kscrolldown,    {.i = mousescrollincrement} },
+	{ 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 (ControlMask|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} },
+	{ TERMMOD,              XK_Prior,       zoom,           {.f = +1} },
+	{ TERMMOD,              XK_Next,        zoom,           {.f = -1} },
+	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
+	{ TERMMOD,              XK_C,           clipcopy,       {.i =  0} },
+	{ TERMMOD,              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_Page_Up,     kscrollup,      {.i = -1} },
+	{ ShiftMask,            XK_Page_Down,   kscrolldown,    {.i = -1} },
+};
+
+/*
+ * 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{|}~";
blob - /dev/null
blob + 39120b4848c1dd055724e0d8345c515d641ec7d4 (mode 644)
--- /dev/null
+++ st/st.1
@@ -0,0 +1,177 @@
+.TH ST 1 st\-VERSION
+.SH NAME
+st \- simple terminal
+.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.
+
blob - /dev/null
blob + 4b7de246c8f974888a0f6f54d24bf7a51e088ba5 (mode 644)
--- /dev/null
+++ st/st.c
@@ -0,0 +1,2803 @@
+/* See LICENSE for license details. */
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <pwd.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.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;
+	memset (&term, 0, sizeof (term));
+	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)
+		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;
+
+	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 (*p != ';' || 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, 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 */
+		DEFAULT(csiescseq.arg[0], 1);
+		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 */
+		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 (cursor position) */
+		if (csiescseq.arg[0] == 6) {
+			len = snprintf(buf, sizeof(buf), "\033[%i;%iR",
+					term.c.y+1, term.c.x+1);
+			ttywrite(buf, len, 0);
+		}
+		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;
+	case 't': /* title stack operations */
+		switch (csiescseq.arg[0]) {
+		case 22: /* pust current title on stack */
+			switch (csiescseq.arg[1]) {
+			case 0:
+			case 1:
+			case 2:
+				xpushtitle();
+				break;
+			default:
+				goto unknown;
+			}
+			break;
+		case 23: /* pop last title from stack */
+			switch (csiescseq.arg[1]) {
+			case 0:
+			case 1:
+			case 2:
+				xsettitle(NULL, 1);
+				break;
+			default:
+				goto unknown;
+			}
+			break;
+		default:
+			goto unknown;
+		}
+	}
+}
+
+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], 0);
+				xseticontitle(strescseq.args[1]);
+			}
+			return;
+		case 1:
+			if (narg > 1)
+				xseticontitle(strescseq.args[1]);
+			return;
+		case 2:
+			if (narg > 1)
+				xsettitle(strescseq.args[1], 0);
+			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)
+					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], 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();
+		xfreetitlestack();
+		resettitle();
+		xloadcols();
+		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) {
+		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));
+
+	if (term.c.x+width > term.col) {
+		tnewline(1);
+		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, 0);
+}
+
+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]);
+	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();
+}
blob - /dev/null
blob + 073851ab14123409aa3584d853f6d2acaee37669 (mode 644)
--- /dev/null
+++ st/st.h
@@ -0,0 +1,128 @@
+/* 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 != (b).mode || (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;
blob - /dev/null
blob + 2a40aa06f43448feb78ab7381bc34aa1a165b79e (mode 644)
--- /dev/null
+++ st/win.h
@@ -0,0 +1,43 @@
+/* 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);
+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 xfreetitlestack(void);
+void xsettitle(char *, int);
+void xpushtitle(void);
+int xsetcursor(int);
+void xsetmode(int, unsigned int);
+void xsetpointermotion(int);
+void xsetsel(char *);
+int xstartdraw(void);
+void xximspot(int, int);
blob - /dev/null
blob + ac2bc3c2e3921902680fa838a6b4d3c08de9cc48 (mode 644)
--- /dev/null
+++ st/x.c
@@ -0,0 +1,2160 @@
+/* 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>
+
+char *argv0;
+#include "arg.h"
+#include "st.h"
+#include "win.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 *);
+void kscrollup(const Arg *);
+void kscrolldown(const Arg *);
+
+/* config.h for applying patches and the configuration. */
+#include "config.h"
+
+/* size of title stack */
+#define TITLESTACKSIZE 8
+
+/* 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 hborderpx, vborderpx;
+	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 int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
+static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, 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;
+static int tstki; /* title stack index */
+static char *titlestack[TITLESTACKSIZE]; /* title stack */
+
+/* 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 - win.hborderpx;
+	LIMIT(x, 0, win.tw - 1);
+	return x / win.cw;
+}
+
+int
+evrow(XEvent *e)
+{
+	int y = e->xbutton.y - win.vborderpx;
+	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);
+
+	win.hborderpx = (win.w - col * win.cw) / 2;
+	win.vborderpx = (win.h - row * win.ch) / 2;
+
+	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));
+}
+
+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))
+		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))
+		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 = 1;
+	sizeh->width_inc = 1;
+	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)
+{
+	/* 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;
+	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);
+
+	/* colors */
+	xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
+	xloadcols();
+
+	/* adjust fixed window geometry */
+	win.w = 2 * win.hborderpx + 2 * borderpx + cols * win.cw;
+	win.h = 2 * win.vborderpx + 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;
+
+	xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
+			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;
+	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));
+
+	/* 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;
+}
+
+int
+xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
+{
+	float winx = win.hborderpx + x * win.cw, winy = win.vborderpx + 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, numspecs = 0;
+
+	for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
+		/* Fetch rune and mode for current glyph. */
+		rune = glyphs[i].u;
+		mode = glyphs[i].mode;
+
+		/* Skip dummy wide-character spacing. */
+		if (mode == ATTR_WDUMMY)
+			continue;
+
+		/* Determine font for glyph if different from previous glyph. */
+		if (prevmode != mode) {
+			prevmode = mode;
+			font = &dc.font;
+			frcflags = FRC_NORMAL;
+			runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f);
+			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;
+			}
+			yp = winy + font->ascent;
+		}
+
+		/* Lookup character index with default font. */
+		glyphidx = XftCharIndex(xw.dpy, font->match, rune);
+		if (glyphidx) {
+			specs[numspecs].font = font->match;
+			specs[numspecs].glyph = glyphidx;
+			specs[numspecs].x = (short)xp;
+			specs[numspecs].y = (short)yp;
+			xp += runewidth;
+			numspecs++;
+			continue;
+		}
+
+		/* Fallback on font cache, search the font cache for match. */
+		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;
+		xp += runewidth;
+		numspecs++;
+	}
+
+	return numspecs;
+}
+
+void
+xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
+{
+	int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
+	int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + 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, win.hborderpx,
+			winy + win.ch +
+			((winy + win.ch >= win.vborderpx + win.th)? win.h : 0));
+	}
+	if (winx + width >= win.hborderpx + win.tw) {
+		xclear(winx + width, (y == 0)? 0 : winy, win.w,
+			((winy + win.ch >= win.vborderpx + win.th)? win.h : (winy + win.ch)));
+	}
+	if (y == 0)
+		xclear(winx, 0, winx + width, win.vborderpx);
+	if (winy + win.ch >= win.vborderpx + 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 spec;
+
+	numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
+	xdrawglyphfontspecs(&spec, g, numspecs, x, y);
+}
+
+void
+xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
+{
+	Color drawcol;
+
+	/* remove the old cursor */
+	if (selected(ox, oy))
+		og.mode ^= ATTR_REVERSE;
+	xdrawglyph(og, ox, oy);
+
+	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,
+					win.hborderpx + cx * win.cw,
+					win.vborderpx + (cy + 1) * win.ch - \
+						cursorthickness,
+					win.cw, cursorthickness);
+			break;
+		case 5: /* Blinking bar */
+		case 6: /* Steady bar */
+			XftDrawRect(xw.draw, &drawcol,
+					win.hborderpx + cx * win.cw,
+					win.vborderpx + cy * win.ch,
+					cursorthickness, win.ch);
+			break;
+		}
+	} else {
+		XftDrawRect(xw.draw, &drawcol,
+				win.hborderpx + cx * win.cw,
+				win.vborderpx + cy * win.ch,
+				win.cw - 1, 1);
+		XftDrawRect(xw.draw, &drawcol,
+				win.hborderpx + cx * win.cw,
+				win.vborderpx + cy * win.ch,
+				1, win.ch - 1);
+		XftDrawRect(xw.draw, &drawcol,
+				win.hborderpx + (cx + 1) * win.cw - 1,
+				win.vborderpx + cy * win.ch,
+				1, win.ch - 1);
+		XftDrawRect(xw.draw, &drawcol,
+				win.hborderpx + cx * win.cw,
+				win.vborderpx + (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 (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
+xfreetitlestack(void)
+{
+	for (int i = 0; i < LEN(titlestack); i++) {
+		free(titlestack[i]);
+		titlestack[i] = NULL;
+	}
+}
+
+void
+xsettitle(char *p, int pop)
+{
+ 	XTextProperty prop;
+ 
+	free(titlestack[tstki]);
+	if (pop) {
+		titlestack[tstki] = NULL;
+		tstki = (tstki - 1 + TITLESTACKSIZE) % TITLESTACKSIZE;
+		p = titlestack[tstki] ? titlestack[tstki] : opt_title;
+	} else if (p) {
+		titlestack[tstki] = xstrdup(p);
+	} else {
+		titlestack[tstki] = NULL;
+		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);
+}
+
+void
+xpushtitle(void)
+{
+	int tstkin = (tstki + 1) % TITLESTACKSIZE;
+
+	free(titlestack[tstkin]);
+	titlestack[tstkin] = titlestack[tstki] ? xstrdup(titlestack[tstki]) : NULL;
+	tstki = tstkin;
+}
+
+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;
+
+	numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
+	i = ox = 0;
+	for (x = x1; x < x2 && i < numspecs; x++) {
+		new = line[x];
+		if (new.mode == ATTR_WDUMMY)
+			continue;
+		if (selected(x, y1))
+			new.mode ^= ATTR_REVERSE;
+		if (i > 0 && ATTRCMP(base, new)) {
+			xdrawglyphfontspecs(specs, base, i, ox, y1);
+			specs += i;
+			numspecs -= i;
+			i = 0;
+		}
+		if (i == 0) {
+			ox = x;
+			base = new;
+		}
+		i++;
+	}
+	if (i > 0)
+		xdrawglyphfontspecs(specs, base, i, ox, y1);
+}
+
+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;
+	}
+}
+
+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("");
+	cols = MAX(cols, 1);
+	rows = MAX(rows, 1);
+	tnew(cols, rows);
+	xinit(cols, rows);
+	xsetenv();
+	selinit();
+	run();
+
+	return 0;
+}