arg.h: remove unused ARGNUM* macros

This was always broken.

Reproduce:
	focus client on second monitor, spawn dmenu with -m 0.

Result:
	Old wrong behaviour: dmenu spawns on second monitor (focused client).
	Now: dmenu spawns on specified monitor (first).

.hgtags

@@ -1,47 +0,0 @@
-fcc8a282cb52c6a9343b461026b386825590cd31 0.1
-656be0f47df545dfdd2e1e0663663b8b1b26f031 0.2
-d352e9dc112ee96aa5cad961a0ed880ae9ce7276 0.3
-7acf0dde1120542917bae12e0e42293f9d2cc899 0.4
-4a0ecd881c4fc15de4a0bebd79308b064be020ef 0.5
-25f679fb19686140a907684ffcb423b9e9d44b53 0.6
-5fc20d7158bd16b4d5f8d1c25e177680b6d54252 0.7
-409667a57221f7e50ba8b5248f638915cd61b366 0.8
-d046c818ea467555cc338751c9bf3024609f1f12 0.9
-9e11140d4cc3eecac3b0ab752f91528fd5e04be8 1.0
-e8c1e9733752db12f2dbd1fa93c46f5806242ba9 1.1
-bee7fe6d1189174d0204ca3195b83cdc1bb4f82e 1.2
-2eb9997be51cb1b11a8900728ccc0904f9371157 1.3
-df3fbb050004c544d14e43c36f6a94cca6ed4a69 1.4
-e071fb045bd9e8574947acff7196360bc0270e68 1.5
-dcc5427f99f51a978386a0dd770467cd911ac84b 1.6
-58dbef4aef3d45c7a3da6945e53c9667c0f02d5b 1.7
-3696d77aaf02f5d15728dde3b9e35abcaf291496 1.7.1
-d3e6fa22ae45b38b1bdb0d813390365e5930360b 1.8
-c7f5f4d543170f03d70468e98a3a0ec8d2c4161b 1.9
-1fce5c464fcd870b9f024aa1853d5cf3a3eb371b 2.0
-7656557298c954469a6a9564e6649b1fb5db663e 2.1
-90f0e34e7f118c9ad3227a1606211ee825942b1c 2.2
-b6e09682c8adcb6569656bee73c311f9ab457715 2.3
-9e9036cbfb4b7306c6fb366249e81dc0e65bdfde 2.4
-03e83e2788c83ddd63b45a667939d7ec783c98cb 2.4.1
-1ca5d430524e838c52ede912533cb90108c5cd66 2.4.2
-041143e9fc544c62edc58af52cae9ac5237e5945 2.5
-775f761a5647a05038e091d1c99fc35d3034cd68 2.6
-fbd9e9d63f202afe6834ccfdf890904f1897ec0b 2.7
-dd3d02b07cac44fbafc074a361c1002cebe7aae4 2.8
-59b3024854db49739c6d237fa9077f04a2da847a 3.0
-8f0f917ac988164e1b4446236e3a6ab6cfcb8c67 3.1
-e4c81a78ffbad6ba4d1ad119cc654da6eca63a4c 3.2
-709df5a4bad7015a346b2b44b1b3b573ea3088ff 3.3
-9ab649b3b3e5bfccf1c8f352c59e5361e070a25f 3.4
-05e5bd706b3b3e61399d57c4bb43df296a20112d 3.5
-0bc2751d06e8b95e0138854c7815e154c5c3d990 3.6
-0508a3a6ee106f36d9b8ff07bb5b28584edfa89c 3.7
-644b0798fcccd570fd519899e1601c6857496b91 3.8
-21a1ed9a69b9541a355758a57103e294fb722c33 3.9
-78f9f72cc9c6bdb022ff8908486b61ef5e242aad 4.0
-844587572673cf6326c3f61737264a46b728fc0a 4.1
-72749a826cab0baa805620e44a22e54486c97a4e 4.1.1
-379813a051f03a1b20bdbfdc2d2d1d2d794ace48 4.2
-abb6579a324fffdf6a23c2fa4c32911277da594a 4.2.1
-14c79f054bdf43ff3213af8e60a783192e92a018 4.3

LICENSE

@@ -1,12 +1,13 @@
 MIT/X Consortium License
 
-© 2010-2011 Connor Lane Smith <cls@lubutu.com>
-© 2006-2011 Anselm R Garbe <anselm@garbe.us>
+© 2006-2014 Anselm R Garbe <anselm@garbe.us>
+© 2010-2012 Connor Lane Smith <cls@lubutu.com>
 © 2009 Gottox <gottox@s01.de>
 © 2009 Markus Schnalke <meillo@marmaro.de>
 © 2009 Evan Gates <evan.gates@gmail.com>
 © 2006-2008 Sander van Dijk <a dot h dot vandijk at gmail dot com>
 © 2006-2007 Michał Janeczek <janeczek at gmail dot com>
+© 2014-2015 Hiltjo Posthuma <hiltjo@codemadness.org>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),

Makefile

@@ -3,10 +3,10 @@
 
 include config.mk
 
-SRC = dmenu.c draw.c
+SRC = drw.c dmenu.c stest.c util.c
 OBJ = ${SRC:.c=.o}
 
-all: options dmenu
+all: options dmenu stest
 
 options:
 	@echo dmenu build options:
@@ -15,23 +15,33 @@ options:
 	@echo "CC       = ${CC}"
 
 .c.o:
-	@echo CC -c $<
-	@${CC} -c $< ${CFLAGS}
+	@echo CC $<
+	@${CC} -c ${CFLAGS} $<
 
-${OBJ}: config.mk
+config.h:
+	@echo creating $@ from config.def.h
+	@cp config.def.h $@
 
-dmenu: ${OBJ}
+${OBJ}: arg.h config.h config.mk drw.h
+
+dmenu: dmenu.o drw.o util.o
 	@echo CC -o $@
-	@${CC} -o $@ ${OBJ} ${LDFLAGS}
+	@${CC} -o $@ dmenu.o drw.o util.o ${LDFLAGS}
+
+stest: stest.o
+	@echo CC -o $@
+	@${CC} -o $@ stest.o ${LDFLAGS}
 
 clean:
 	@echo cleaning
-	@rm -f dmenu ${OBJ} dmenu-${VERSION}.tar.gz
+	@rm -f dmenu stest ${OBJ} dmenu-${VERSION}.tar.gz
 
 dist: clean
 	@echo creating dist tarball
 	@mkdir -p dmenu-${VERSION}
-	@cp LICENSE Makefile README config.mk dmenu.1 draw.h dmenu_path dmenu_run ${SRC} dmenu-${VERSION}
+	@cp LICENSE Makefile README arg.h config.def.h config.mk dmenu.1 \
+		drw.h util.h dmenu_path dmenu_run stest.1 ${SRC} \
+		dmenu-${VERSION}
 	@tar -cf dmenu-${VERSION}.tar dmenu-${VERSION}
 	@gzip dmenu-${VERSION}.tar
 	@rm -rf dmenu-${VERSION}
@@ -39,21 +49,26 @@ dist: clean
 install: all
 	@echo installing executables to ${DESTDIR}${PREFIX}/bin
 	@mkdir -p ${DESTDIR}${PREFIX}/bin
-	@cp -f dmenu dmenu_path dmenu_run ${DESTDIR}${PREFIX}/bin
+	@cp -f dmenu dmenu_path dmenu_run stest ${DESTDIR}${PREFIX}/bin
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu_path
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu_run
-	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
+	@chmod 755 ${DESTDIR}${PREFIX}/bin/stest
+	@echo installing manual pages to ${DESTDIR}${MANPREFIX}/man1
 	@mkdir -p ${DESTDIR}${MANPREFIX}/man1
 	@sed "s/VERSION/${VERSION}/g" < dmenu.1 > ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+	@sed "s/VERSION/${VERSION}/g" < stest.1 > ${DESTDIR}${MANPREFIX}/man1/stest.1
 	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/stest.1
 
 uninstall:
 	@echo removing executables from ${DESTDIR}${PREFIX}/bin
 	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu
 	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu_path
 	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu_run
+	@rm -f ${DESTDIR}${PREFIX}/bin/stest
 	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
 	@rm -f ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+	@rm -f ${DESTDIR}${MANPREFIX}/man1/stest.1
 
 .PHONY: all options clean dist install uninstall

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][1]\
+					&& argv[0][0] == '-';\
+					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

config.def.h

@@ -0,0 +1,17 @@
+/* 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     */
+/* -fn option overrides fonts[0]; default X11 font or font set */
+static const char *fonts[] = {
+	"monospace:size=10"
+};
+static const char *prompt      = NULL;      /* -p  option; prompt to the elft of input field */
+static const char *normbgcolor = "#222222"; /* -nb option; normal background                 */
+static const char *normfgcolor = "#bbbbbb"; /* -nf option; normal foreground                 */
+static const char *selbgcolor  = "#005577"; /* -sb option; selected background               */
+static const char *selfgcolor  = "#eeeeee"; /* -sf option; selected foreground               */
+static const char *outbgcolor  = "#00ffff";
+static const char *outfgcolor  = "#000000";
+/* -l option; if nonzero, dmenu uses vertical list with given number of lines */
+static unsigned int lines      = 0;

config.mk

@@ -1,5 +1,5 @@
 # dmenu version
-VERSION = 4.3.1
+VERSION = 4.6
 
 # paths
 PREFIX = /usr/local
@@ -12,13 +12,19 @@ X11LIB = /usr/X11R6/lib
 XINERAMALIBS  = -lXinerama
 XINERAMAFLAGS = -DXINERAMA
 
+# freetype
+FREETYPELIBS = -lfontconfig -lXft
+FREETYPEINC = /usr/include/freetype2
+# OpenBSD (uncomment)
+#FREETYPEINC = ${X11INC}/freetype2
+
 # includes and libs
-INCS = -I${X11INC}
-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS}
+INCS = -I${X11INC} -I${FREETYPEINC}
+LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
 
 # flags
-CPPFLAGS = -D_BSD_SOURCE -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
-CFLAGS   = -ansi -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+CPPFLAGS = -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
+CFLAGS   = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
 LDFLAGS  = -s ${LIBS}
 
 # compiler and linker

dmenu.1

@@ -7,6 +7,8 @@ dmenu \- dynamic menu
 .RB [ \-f ]
 .RB [ \-i ]
 .RB [ \-l
+.RB [ \-m
+.IR monitor ]
 .IR lines ]
 .RB [ \-p
 .IR prompt ]
@@ -23,32 +25,25 @@ dmenu \- dynamic menu
 .RB [ \-v ]
 .P
 .BR dmenu_run " ..."
-.P
-.B dmenu_path
 .SH DESCRIPTION
 .B dmenu
-is a dynamic menu for X, originally designed for
-.BR dwm (1).
-It manages huge numbers of user\-defined menu items efficiently.
-.P
-dmenu reads a list of newline\-separated items from stdin and creates a menu.
-When the user selects an item or enters any text and presses Return, their
-choice is printed to stdout and dmenu terminates.
+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 dmenu script used by dwm which lists programs in the user's PATH and
-executes the selected item.
-.P
-.B dmenu_path
-is a script used by dmenu_run to find and cache a list of executables.
+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.  This is faster, but may lock up
-X if stdin is from a terminal.
+dmenu grabs the keyboard before reading stdin.  This is faster, but will lock up
+X until stdin reaches end\-of\-file.
 .TP
 .B \-i
 dmenu matches menu items case insensitively.
@@ -56,6 +51,10 @@ dmenu matches menu items case insensitively.
 .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
@@ -80,24 +79,102 @@ defines the selected foreground color.
 .B \-v
 prints version information to stdout, then exits.
 .SH USAGE
-dmenu is completely controlled by the keyboard.  Besides standard Unix line
-editing and item selection (arrow keys, page up/down, home and end), the
-following keys are recognized:
+dmenu is completely controlled by the keyboard.  Items are selected using the
+arrow keys, page up, page down, home, and end.
 .TP
-.B Tab (Ctrl\-i)
+.B Tab
 Copy the selected item to the input field.
 .TP
-.B Return (Ctrl\-j)
+.B Return
 Confirm selection.  Prints the selected item to stdout and exits, returning
 success.
 .TP
-.B Shift\-Return (Ctrl\-Shift\-j)
+.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 (Ctrl\-c)
+.B Escape
 Exit without selecting an item, returning failure.
 .TP
-.B Ctrl\-y
-Paste the current X selection into the input field.
+C\-a
+Home
+.TP
+C\-b
+Left
+.TP
+C\-c
+Escape
+.TP
+C\-d
+Delete
+.TP
+C\-e
+End
+.TP
+C\-f
+Right
+.TP
+C\-g
+Escape
+.TP
+C\-h
+Backspace
+.TP
+C\-i
+Tab
+.TP
+C\-j
+Return
+.TP
+C\-J
+Shift-Return
+.TP
+C\-k
+Delete line right
+.TP
+C\-m
+Return
+.TP
+C\-M
+Shift-Return
+.TP
+C\-n
+Down
+.TP
+C\-p
+Up
+.TP
+C\-u
+Delete line left
+.TP
+C\-w
+Delete word left
+.TP
+C\-y
+Paste from primary X selection
+.TP
+C\-Y
+Paste from X clipboard
+.TP
+M\-g
+Home
+.TP
+M\-G
+End
+.TP
+M\-h
+Up
+.TP
+M\-j
+Page down
+.TP
+M\-k
+Page up
+.TP
+M\-l
+Down
 .SH SEE ALSO
-.BR dwm (1)
+.IR dwm (1),
+.IR stest (1)

dmenu_path

@@ -1,9 +1,13 @@
 #!/bin/sh
-CACHE=$HOME/.dmenu_cache
-IFS=:
-
-if ! test -f "$CACHE" || find $PATH -type d -newer "$CACHE" | grep -q .; then
-	find $PATH ! -type d \( -perm -1 -o -perm -10 -o -perm -100 \) | sed 's/.*\///' | sort -u > "$CACHE"
+cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}
+if [ -d "$cachedir" ]; then
+	cache=$cachedir/dmenu_run
+else
+	cache=$HOME/.dmenu_cache # if no xdg dir, fall back to dotfile in ~
+fi
+IFS=:
+if stest -dqr -n "$cache" $PATH; then
+	stest -flx $PATH | sort -u | tee "$cache"
+else
+	cat "$cache"
 fi
-
-cat "$CACHE"

dmenu_run

@@ -1,2 +1,2 @@
 #!/bin/sh
-exe=`dmenu_path | dmenu ${1+"$@"}` && exec $exe
+dmenu_path | dmenu "$@" | ${SHELL:-"/bin/sh"} &

draw.c

@@ -1,177 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-#include <locale.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include "draw.h"
-
-#define MAX(a, b)  ((a) > (b) ? (a) : (b))
-#define MIN(a, b)  ((a) < (b) ? (a) : (b))
-#define DEFAULTFN  "fixed"
-
-static Bool loadfont(DC *dc, const char *fontstr);
-
-void
-drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill, unsigned long color) {
-	XSetForeground(dc->dpy, dc->gc, color);
-	if(fill)
-		XFillRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y + y, w, h);
-	else
-		XDrawRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y + y, w-1, h-1);
-}
-
-void
-drawtext(DC *dc, const char *text, unsigned long col[ColLast]) {
-	char buf[BUFSIZ];
-	size_t mn, n = strlen(text);
-
-	/* shorten text if necessary */
-	for(mn = MIN(n, sizeof buf); textnw(dc, text, mn) + dc->font.height/2 > dc->w; mn--)
-		if(mn == 0)
-			return;
-	memcpy(buf, text, mn);
-	if(mn < n)
-		for(n = MAX(mn-3, 0); n < mn; buf[n++] = '.');
-
-	drawrect(dc, 0, 0, dc->w, dc->h, True, BG(dc, col));
-	drawtextn(dc, buf, mn, col);
-}
-
-void
-drawtextn(DC *dc, const char *text, size_t n, unsigned long col[ColLast]) {
-	int x = dc->x + dc->font.height/2;
-	int y = dc->y + dc->font.ascent+1;
-
-	XSetForeground(dc->dpy, dc->gc, FG(dc, col));
-	if(dc->font.set)
-		XmbDrawString(dc->dpy, dc->canvas, dc->font.set, dc->gc, x, y, text, n);
-	else {
-		XSetFont(dc->dpy, dc->gc, dc->font.xfont->fid);
-		XDrawString(dc->dpy, dc->canvas, dc->gc, x, y, text, n);
-	}
-}
-
-void
-eprintf(const char *fmt, ...) {
-	va_list ap;
-
-	va_start(ap, fmt);
-	vfprintf(stderr, fmt, ap);
-	va_end(ap);
-
-	if(fmt[0] != '\0' && fmt[strlen(fmt)-1] == ':') {
-		fputc(' ', stderr);
-		perror(NULL);
-	}
-	exit(EXIT_FAILURE);
-}
-
-void
-freedc(DC *dc) {
-	if(dc->font.set)
-		XFreeFontSet(dc->dpy, dc->font.set);
-	if(dc->font.xfont)
-		XFreeFont(dc->dpy, dc->font.xfont);
-	if(dc->canvas)
-		XFreePixmap(dc->dpy, dc->canvas);
-	XFreeGC(dc->dpy, dc->gc);
-	XCloseDisplay(dc->dpy);
-	free(dc);
-}
-
-unsigned long
-getcolor(DC *dc, const char *colstr) {
-	Colormap cmap = DefaultColormap(dc->dpy, DefaultScreen(dc->dpy));
-	XColor color;
-
-	if(!XAllocNamedColor(dc->dpy, cmap, colstr, &color, &color))
-		eprintf("cannot allocate color '%s'\n", colstr);
-	return color.pixel;
-}
-
-DC *
-initdc(void) {
-	DC *dc;
-
-	if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
-		fprintf(stderr, "no locale support\n");
-	if(!(dc = calloc(1, sizeof *dc)))
-		eprintf("cannot malloc %u bytes:", sizeof *dc);
-	if(!(dc->dpy = XOpenDisplay(NULL)))
-		eprintf("cannot open display\n");
-
-	dc->gc = XCreateGC(dc->dpy, DefaultRootWindow(dc->dpy), 0, NULL);
-	XSetLineAttributes(dc->dpy, dc->gc, 1, LineSolid, CapButt, JoinMiter);
-	return dc;
-}
-
-void
-initfont(DC *dc, const char *fontstr) {
-	if(!loadfont(dc, fontstr ? fontstr : DEFAULTFN)) {
-		if(fontstr != NULL)
-			fprintf(stderr, "cannot load font '%s'\n", fontstr);
-		if(fontstr == NULL || !loadfont(dc, DEFAULTFN))
-			eprintf("cannot load font '%s'\n", DEFAULTFN);
-	}
-	dc->font.height = dc->font.ascent + dc->font.descent;
-}
-
-Bool
-loadfont(DC *dc, const char *fontstr) {
-	char *def, **missing;
-	int i, n;
-
-	if(!*fontstr)
-		return False;
-	if((dc->font.set = XCreateFontSet(dc->dpy, fontstr, &missing, &n, &def))) {
-		char **names;
-		XFontStruct **xfonts;
-
-		n = XFontsOfFontSet(dc->font.set, &xfonts, &names);
-		for(i = dc->font.ascent = dc->font.descent = 0; i < n; i++) {
-			dc->font.ascent = MAX(dc->font.ascent, xfonts[i]->ascent);
-			dc->font.descent = MAX(dc->font.descent, xfonts[i]->descent);
-		}
-	}
-	else if((dc->font.xfont = XLoadQueryFont(dc->dpy, fontstr))) {
-		dc->font.ascent = dc->font.xfont->ascent;
-		dc->font.descent = dc->font.xfont->descent;
-	}
-	if(missing)
-		XFreeStringList(missing);
-	return (dc->font.set || dc->font.xfont);
-}
-
-void
-mapdc(DC *dc, Window win, unsigned int w, unsigned int h) {
-	XCopyArea(dc->dpy, dc->canvas, win, dc->gc, 0, 0, w, h, 0, 0);
-}
-
-void
-resizedc(DC *dc, unsigned int w, unsigned int h) {
-	if(dc->canvas)
-		XFreePixmap(dc->dpy, dc->canvas);
-
-	dc->canvas = XCreatePixmap(dc->dpy, DefaultRootWindow(dc->dpy), w, h,
-	                           DefaultDepth(dc->dpy, DefaultScreen(dc->dpy)));
-	dc->w = w;
-	dc->h = h;
-}
-
-int
-textnw(DC *dc, const char *text, size_t len) {
-	if(dc->font.set) {
-		XRectangle r;
-
-		XmbTextExtents(dc->font.set, text, len, NULL, &r);
-		return r.width;
-	}
-	return XTextWidth(dc->font.xfont, text, len);
-}
-
-int
-textw(DC *dc, const char *text) {
-	return textnw(dc, text, strlen(text)) + dc->font.height;
-}

draw.h

@@ -1,34 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-
-#define FG(dc, col)  ((col)[(dc)->invert ? ColBG : ColFG])
-#define BG(dc, col)  ((col)[(dc)->invert ? ColFG : ColBG])
-
-enum { ColBG, ColFG, ColBorder, ColLast };
-
-typedef struct {
-	int x, y, w, h;
-	Bool invert;
-	Display *dpy;
-	GC gc;
-	Pixmap canvas;
-	struct {
-		int ascent;
-		int descent;
-		int height;
-		XFontSet set;
-		XFontStruct *xfont;
-	} font;
-} DC;  /* draw context */
-
-void drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill, unsigned long color);
-void drawtext(DC *dc, const char *text, unsigned long col[ColLast]);
-void drawtextn(DC *dc, const char *text, size_t n, unsigned long col[ColLast]);
-void eprintf(const char *fmt, ...);
-void freedc(DC *dc);
-unsigned long getcolor(DC *dc, const char *colstr);
-DC *initdc(void);
-void initfont(DC *dc, const char *fontstr);
-void mapdc(DC *dc, Window win, unsigned int w, unsigned int h);
-void resizedc(DC *dc, unsigned int w, unsigned int h);
-int textnw(DC *dc, const char *text, size_t len);
-int textw(DC *dc, const char *text);

drw.c

@@ -0,0 +1,398 @@
+/* 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;
+
+	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);
+	drw->fontcount = 0;
+	XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);
+
+	return drw;
+}
+
+void
+drw_resize(Drw *drw, unsigned int w, unsigned int h)
+{
+	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)
+{
+	size_t i;
+
+	for (i = 0; i < drw->fontcount; i++)
+		drw_font_free(drw->fonts[i]);
+	XFreePixmap(drw->dpy, drw->drawable);
+	XFreeGC(drw->dpy, drw->gc);
+	free(drw);
+}
+
+/* This function is an implementation detail. Library users should use
+ * drw_font_create instead.
+ */
+static Fnt *
+drw_font_xcreate(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 same
+		 * 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: '%s'\n", fontname);
+			return NULL;
+		}
+		if (!(pattern = FcNameParse((FcChar8 *) fontname))) {
+			fprintf(stderr, "error, cannot load font: '%s'\n", fontname);
+			XftFontClose(drw->dpy, xfont);
+			return NULL;
+		}
+	} else if (fontpattern) {
+		if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) {
+			fprintf(stderr, "error, cannot load font pattern.\n");
+			return NULL;
+		}
+	} else {
+		die("no font specified.\n");
+	}
+
+	font = ecalloc(1, sizeof(Fnt));
+	font->xfont = xfont;
+	font->pattern = pattern;
+	font->ascent = xfont->ascent;
+	font->descent = xfont->descent;
+	font->h = font->ascent + font->descent;
+	font->dpy = drw->dpy;
+
+	return font;
+}
+
+Fnt*
+drw_font_create(Drw *drw, const char *fontname)
+{
+	return drw_font_xcreate(drw, fontname, NULL);
+}
+
+void
+drw_load_fonts(Drw* drw, const char *fonts[], size_t fontcount)
+{
+	size_t i;
+	Fnt *font;
+
+	for (i = 0; i < fontcount; i++) {
+		if (drw->fontcount >= DRW_FONT_CACHE_SIZE) {
+			die("Font cache exhausted.\n");
+		} else if ((font = drw_font_xcreate(drw, fonts[i], NULL))) {
+			drw->fonts[drw->fontcount++] = font;
+		}
+	}
+}
+
+void
+drw_font_free(Fnt *font)
+{
+	if (!font)
+		return;
+	if (font->pattern)
+		FcPatternDestroy(font->pattern);
+	XftFontClose(font->dpy, font->xfont);
+	free(font);
+}
+
+Clr *
+drw_clr_create(Drw *drw, const char *clrname)
+{
+	Clr *clr;
+
+	clr = ecalloc(1, sizeof(Clr));
+	if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
+	                       DefaultColormap(drw->dpy, drw->screen),
+	                       clrname, &clr->rgb))
+		die("error, cannot allocate color '%s'\n", clrname);
+	clr->pix = clr->rgb.pixel;
+
+	return clr;
+}
+
+void
+drw_clr_free(Clr *clr)
+{
+	free(clr);
+}
+
+void
+drw_setscheme(Drw *drw, ClrScheme *scheme)
+{
+	drw->scheme = scheme;
+}
+
+void
+drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int empty, int invert)
+{
+	if (!drw->scheme)
+		return;
+	XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->bg->pix : drw->scheme->fg->pix);
+	if (filled)
+		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w + 1, h + 1);
+	else if (empty)
+		XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
+}
+
+int
+drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, const char *text, int invert)
+{
+	char buf[1024];
+	int tx, ty, th;
+	Extnts tex;
+	XftDraw *d = NULL;
+	Fnt *curfont, *nextfont;
+	size_t i, len;
+	int utf8strlen, utf8charlen, render;
+	long utf8codepoint = 0;
+	const char *utf8str;
+	FcCharSet *fccharset;
+	FcPattern *fcpattern;
+	FcPattern *match;
+	XftResult result;
+	int charexists = 0;
+
+	if (!drw->scheme || !drw->fontcount)
+		return 0;
+
+	if (!(render = x || y || w || h)) {
+		w = ~w;
+	} else {
+		XSetForeground(drw->dpy, drw->gc, invert ?
+		               drw->scheme->fg->pix : drw->scheme->bg->pix);
+		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));
+	}
+
+	curfont = drw->fonts[0];
+	while (1) {
+		utf8strlen = 0;
+		utf8str = text;
+		nextfont = NULL;
+		while (*text) {
+			utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
+			for (i = 0; i < drw->fontcount; i++) {
+				charexists = charexists || XftCharExists(drw->dpy, drw->fonts[i]->xfont, utf8codepoint);
+				if (charexists) {
+					if (drw->fonts[i] == curfont) {
+						utf8strlen += utf8charlen;
+						text += utf8charlen;
+					} else {
+						nextfont = drw->fonts[i];
+					}
+					break;
+				}
+			}
+
+			if (!charexists || (nextfont && nextfont != curfont))
+				break;
+			else
+				charexists = 0;
+		}
+
+		if (utf8strlen) {
+			drw_font_getexts(curfont, utf8str, utf8strlen, &tex);
+			/* shorten text if necessary */
+			for (len = MIN(utf8strlen, (sizeof buf) - 1); len && (tex.w > w - drw->fonts[0]->h || w < drw->fonts[0]->h); len--)
+				drw_font_getexts(curfont, utf8str, len, &tex);
+
+			if (len) {
+				memcpy(buf, utf8str, len);
+				buf[len] = '\0';
+				if (len < utf8strlen)
+					for (i = len; i && i > len - 3; buf[--i] = '.');
+
+				if (render) {
+					th = curfont->ascent + curfont->descent;
+					ty = y + (h / 2) - (th / 2) + curfont->ascent;
+					tx = x + (h / 2);
+					XftDrawStringUtf8(d, invert ? &drw->scheme->bg->rgb : &drw->scheme->fg->rgb, curfont->xfont, tx, ty, (XftChar8 *)buf, len);
+				}
+				x += tex.w;
+				w -= tex.w;
+			}
+		}
+
+		if (!*text) {
+			break;
+		} else if (nextfont) {
+			charexists = 0;
+			curfont = nextfont;
+		} else {
+			/* Regardless of whether or not a fallback font is found, the
+			 * character must be drawn.
+			 */
+			charexists = 1;
+
+			if (drw->fontcount >= DRW_FONT_CACHE_SIZE)
+				continue;
+
+			fccharset = FcCharSetCreate();
+			FcCharSetAddChar(fccharset, utf8codepoint);
+
+			if (!drw->fonts[0]->pattern) {
+				/* Refer to the comment in drw_font_xcreate for more
+				 * information. */
+				die("the first font in the cache must be loaded from a font string.\n");
+			}
+
+			fcpattern = FcPatternDuplicate(drw->fonts[0]->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) {
+				curfont = drw_font_xcreate(drw, NULL, match);
+				if (curfont && XftCharExists(drw->dpy, curfont->xfont, utf8codepoint)) {
+					drw->fonts[drw->fontcount++] = curfont;
+				} else {
+					drw_font_free(curfont);
+					curfont = drw->fonts[0];
+				}
+			}
+		}
+	}
+	if (d)
+		XftDrawDestroy(d);
+
+	return x;
+}
+
+void
+drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h)
+{
+	XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
+	XSync(drw->dpy, False);
+}
+
+void
+drw_font_getexts(Fnt *font, const char *text, unsigned int len, Extnts *tex)
+{
+	XGlyphInfo ext;
+
+	XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext);
+	tex->h = font->h;
+	tex->w = ext.xOff;
+}
+
+unsigned int
+drw_font_getexts_width(Fnt *font, const char *text, unsigned int len)
+{
+	Extnts tex;
+
+	drw_font_getexts(font, text, len, &tex);
+
+	return tex.w;
+}
+
+Cur *
+drw_cur_create(Drw *drw, int shape)
+{
+	Cur *cur;
+
+	cur = ecalloc(1, sizeof(Cur));
+	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);
+}

drw.h

@@ -0,0 +1,74 @@
+/* See LICENSE file for copyright and license details. */
+#define DRW_FONT_CACHE_SIZE 32
+
+typedef struct {
+	unsigned long pix;
+	XftColor rgb;
+} Clr;
+
+typedef struct {
+	Cursor cursor;
+} Cur;
+
+typedef struct {
+	Display *dpy;
+	int ascent;
+	int descent;
+	unsigned int h;
+	XftFont *xfont;
+	FcPattern *pattern;
+} Fnt;
+
+typedef struct {
+	Clr *fg;
+	Clr *bg;
+	Clr *border;
+} ClrScheme;
+
+typedef struct {
+	unsigned int w, h;
+	Display *dpy;
+	int screen;
+	Window root;
+	Drawable drawable;
+	GC gc;
+	ClrScheme *scheme;
+	size_t fontcount;
+	Fnt *fonts[DRW_FONT_CACHE_SIZE];
+} Drw;
+
+typedef struct {
+	unsigned int w;
+	unsigned int h;
+} Extnts;
+
+/* Drawable abstraction */
+Drw *drw_create(Display *, int, Window, unsigned int, unsigned int);
+void drw_resize(Drw *, unsigned int, unsigned int);
+void drw_free(Drw *);
+
+/* Fnt abstraction */
+Fnt *drw_font_create(Drw *, const char *);
+void drw_load_fonts(Drw *, const char *[], size_t);
+void drw_font_free(Fnt *);
+void drw_font_getexts(Fnt *, const char *, unsigned int, Extnts *);
+unsigned int drw_font_getexts_width(Fnt *, const char *, unsigned int);
+
+/* Colour abstraction */
+Clr *drw_clr_create(Drw *, const char *);
+void drw_clr_free(Clr *);
+
+/* Cursor abstraction */
+Cur *drw_cur_create(Drw *, int);
+void drw_cur_free(Drw *, Cur *);
+
+/* Drawing context manipulation */
+void drw_setfont(Drw *, Fnt *);
+void drw_setscheme(Drw *, ClrScheme *);
+
+/* Drawing functions */
+void drw_rect(Drw *, int, int, unsigned int, unsigned int, int, int, int);
+int drw_text(Drw *, int, int, unsigned int, unsigned int, const char *, int);
+
+/* Map functions */
+void drw_map(Drw *, Window, int, int, unsigned int, unsigned int);

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)

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 (n && 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;
+}

util.c

@@ -0,0 +1,33 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		perror(NULL);
+	return p;
+}
+
+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);
+	}
+
+	exit(1);
+}

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 *errstr, ...);
+void *ecalloc(size_t, size_t);