initial import

LICENSE

@@ -0,0 +1,21 @@
+MIT/X Consortium License
+
+(C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the 
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software. 
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL 
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+DEALINGS IN THE SOFTWARE.

Makefile

@@ -0,0 +1,61 @@
+# dmenu - dynamic menu
+#   (C)opyright MMVI Anselm R. Garbe
+
+include config.mk
+
+SRC = draw.c main.c util.c
+OBJ = ${SRC:.c=.o}
+
+all: options dmenu
+	@echo finished
+
+options:
+	@echo dmenu build options:
+	@echo "CFLAGS   = ${CFLAGS}"
+	@echo "LDFLAGS  = ${LDFLAGS}"
+	@echo "CC       = ${CC}"
+
+.c.o:
+	@echo CC $<
+	@${CC} -c ${CFLAGS} $<
+
+${OBJ}: dmenu.h config.h
+
+config.h:
+	@echo creating $@ from config.default.h
+	@cp config.default.h $@
+
+dmenu: ${OBJ}
+	@echo LD $@
+	@${CC} -o $@ ${OBJ} ${LDFLAGS}
+
+clean:
+	@echo cleaning
+	@rm -f dmenu ${OBJ} dmenu-${VERSION}.tar.gz
+
+dist: clean
+	@echo creating dist tarball
+	@mkdir -p dmenu-${VERSION}
+	@cp -R LICENSE Makefile README config.mk \
+		dmenu.1 dmenu.h ${SRC} dmenu-${VERSION}
+	@tar -cf dmenu-${VERSION}.tar dmenu-${VERSION}
+	@gzip dmenu-${VERSION}.tar
+	@rm -rf dmenu-${VERSION}
+
+install: all
+	@echo installing executable file to ${DESTDIR}${PREFIX}/bin
+	@mkdir -p ${DESTDIR}${PREFIX}/bin
+	@cp -f dmenu ${DESTDIR}${PREFIX}/bin
+	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu
+	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
+	@mkdir -p ${DESTDIR}${MANPREFIX}/man1
+	@cp -f dmenu.1 ${DESTDIR}${MANPREFIX}/man1
+	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+
+uninstall:
+	@echo removing executable file from ${DESTDIR}${PREFIX}/bin
+	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu
+	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
+	@rm -f ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+
+.PHONY: all options clean dist install uninstall

README

@@ -0,0 +1,48 @@
+dwm - dynamic window manager
+----------------------------
+dwm is an extremely fast, small, and dynamic X11 window manager.
+
+
+Requirements
+------------
+In order to build dwm you need the Xlib header files.
+
+
+Installation
+------------
+Edit config.mk to match your local setup (dwm is installed into
+the /usr/local namespace by default).
+
+Afterwards enter the following command to build and install dwm (if
+necessary as root):
+
+    make clean install
+
+
+Running dwm
+-----------
+Add the following line to your .xinitrc to start dwm using startx:
+
+    exec dwm
+
+In order to connect dwm to a specific display, make sure that
+the DISPLAY environment variable is set correctly, e.g.:
+
+    DISPLAY=foo.bar:1 exec dwm
+
+(This will start dwm on display :1 of the host foo.bar.)
+
+In order to display status info in the bar, you can do something
+like this in your .xinitrc:
+
+    while true
+    do
+        echo `date` `uptime | sed 's/.*://; s/,//g'`
+        sleep 1
+    done | dwm
+
+
+Configuration
+-------------
+The configuration of dwm is done by creating a custom config.h
+and (re)compiling the source code.

config.arg.h

@@ -0,0 +1,9 @@
+/*
+ * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#define FONT			"-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*"
+#define BGCOLOR			"#0a2c2d"
+#define FGCOLOR			"#ddeeee"
+#define BORDERCOLOR		"#176164"

config.default.h

@@ -0,0 +1,9 @@
+/*
+ * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#define FONT			"fixed"
+#define BGCOLOR			"#666699"
+#define FGCOLOR			"#eeeeee"
+#define BORDERCOLOR		"#9999CC"

config.h

@@ -0,0 +1,9 @@
+/*
+ * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#define FONT			"-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*"
+#define BGCOLOR			"#0a2c2d"
+#define FGCOLOR			"#ddeeee"
+#define BORDERCOLOR		"#176164"

config.mk

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+# dwm version
+VERSION = 0.0
+
+# Customize below to fit your system
+
+# paths
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/share/man
+
+X11INC = /usr/X11R6/include
+X11LIB = /usr/X11R6/lib
+
+# includes and libs
+INCS = -I/usr/lib -I${X11INC}
+LIBS = -L/usr/lib -lc -L${X11LIB} -lX11
+
+# flags
+CFLAGS = -O3 ${INCS} -DVERSION=\"${VERSION}\"
+LDFLAGS = ${LIBS}
+#CFLAGS = -g -Wall -O2 ${INCS} -DVERSION=\"${VERSION}\"
+#LDFLAGS = -g ${LIBS}
+
+# compiler
+CC = cc

dmenu.1

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+.TH DMENU 1 d-0.0
+.SH NAME
+dmenu \- dynamic menu
+.SH SYNOPSIS
+.B dmenu
+.RB [ \-v ]
+.RB [ \-t
+.IR title ]
+.SH DESCRIPTION
+.SS Overview
+.B dmenu
+is a generic, highly customizable, and efficient menu for the X Window System,
+originally designed for
+.BR dwm (1).
+It supports arbitrary, user defined menu contents.
+.SS Options
+.TP
+.B \-v
+prints version information to stdout, then exits.
+.TP
+.BI \-t " title"
+displays
+.I title
+above the menu.
+.SS Usage
+.B 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 Enter, his choice
+is printed to stdout and
+.B dmenu
+terminates.
+.SS Keyboard Control 
+.B dmenu
+is completely controlled by the keyboard.  The following keys are recognized:
+.TP 2
+Any printable character
+appends the character to the text in the input field. This works as a filter:
+only items containing this text will be displayed.
+.TP 2
+Left/Right (Control-p/Control-n)
+select the previous/next item.
+.TP 2
+Tab (Control-i)
+copy the selected item to the input field.
+.TP 2
+Enter (Control-j)
+confirm selection and quit (print the selected item to stdout).
+.TP 2
+Shift-Enter (Shift-Control-j)
+confirm selection and quit (print the text in the input field to stdout).
+.TP 2
+Escape (Control-[)
+quit without selecting an item.
+.TP 2
+Backspace (Control-h)
+remove enough characters from the input field to change its filtering effect.
+.TP 2
+Control-u
+remove all characters from the input field.
+.SS Exit codes
+.B dmenu
+returns
+.B 0
+if Enter is pressed on termination,
+.B 1
+if Escape is pressed.
+.SH SEE ALSO
+.BR dwm (1)

dmenu.h

@@ -0,0 +1,58 @@
+/*
+ * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#include "config.h"
+#include <X11/Xlib.h>
+#include <X11/Xlocale.h>
+
+typedef struct Brush Brush;
+typedef struct DC DC;
+typedef struct Fnt Fnt;
+
+struct Fnt {
+	XFontStruct *xfont;
+	XFontSet set;
+	int ascent;
+	int descent;
+	int height;
+};
+
+struct DC { /* draw context */
+	int x, y, w, h;
+	unsigned long bg;
+	unsigned long fg;
+	unsigned long border;
+	Drawable drawable;
+	Fnt font;
+	GC gc;
+};
+
+struct Brush {
+	GC gc;
+	Drawable drawable;
+	int x, y, w, h;
+	Fnt font;
+	unsigned long bg;
+	unsigned long fg;
+	unsigned long border;
+};
+
+
+
+/* draw.c */
+extern void draw(Display *dpy, Brush *b, Bool border, const char *text);
+extern void loadcolors(Display *dpy, int screen, Brush *b,
+		const char *bg, const char *fg, const char *bo);
+extern void loadfont(Display *dpy, Fnt *font, const char *fontstr);
+extern unsigned int textnw(Fnt *font, char *text, unsigned int len);
+extern unsigned int textw(Fnt *font, char *text);
+extern unsigned int texth(Fnt *font);
+
+/* util.c */
+extern void *emalloc(unsigned int size);
+extern void *emallocz(unsigned int size);
+extern void eprint(const char *errstr, ...);
+extern char *estrdup(const char *str);
+extern void swap(void **p1, void **p2);

draw.c

@@ -0,0 +1,171 @@
+/*
+ * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "dmenu.h"
+
+static void
+drawborder(Display *dpy, Brush *b)
+{
+	XPoint points[5];
+	XSetLineAttributes(dpy, b->gc, 1, LineSolid, CapButt, JoinMiter);
+	XSetForeground(dpy, b->gc, b->border);
+	points[0].x = b->x;
+	points[0].y = b->y;
+	points[1].x = b->w - 1;
+	points[1].y = 0;
+	points[2].x = 0;
+	points[2].y = b->h - 1;
+	points[3].x = -(b->w - 1);
+	points[3].y = 0;
+	points[4].x = 0;
+	points[4].y = -(b->h - 1);
+	XDrawLines(dpy, b->drawable, b->gc, points, 5, CoordModePrevious);
+}
+
+void
+draw(Display *dpy, Brush *b, Bool border, const char *text)
+{
+	unsigned int x, y, w, h, len;
+	static char buf[256];
+	XGCValues gcv;
+	XRectangle r = { b->x, b->y, b->w, b->h };
+
+	XSetForeground(dpy, b->gc, b->bg);
+	XFillRectangles(dpy, b->drawable, b->gc, &r, 1);
+
+	w = 0;
+	if(border)
+		drawborder(dpy, b);
+
+	if(!text)
+		return;
+
+	len = strlen(text);
+	if(len >= sizeof(buf))
+		len = sizeof(buf) - 1;
+	memcpy(buf, text, len);
+	buf[len] = 0;
+
+	h = b->font.ascent + b->font.descent;
+	y = b->y + (b->h / 2) - (h / 2) + b->font.ascent;
+	x = b->x + (h / 2);
+
+	/* shorten text if necessary */
+	while(len && (w = textnw(&b->font, buf, len)) > b->w - h)
+		buf[--len] = 0;
+
+	if(w > b->w)
+		return; /* too long */
+
+	gcv.foreground = b->fg;
+	gcv.background = b->bg;
+	if(b->font.set) {
+		XChangeGC(dpy, b->gc, GCForeground | GCBackground, &gcv);
+		XmbDrawImageString(dpy, b->drawable, b->font.set, b->gc,
+				x, y, buf, len);
+	}
+	else {
+		gcv.font = b->font.xfont->fid;
+		XChangeGC(dpy, b->gc, GCForeground | GCBackground | GCFont, &gcv);
+		XDrawImageString(dpy, b->drawable, b->gc, x, y, buf, len);
+	}
+}
+
+static unsigned long
+xloadcolors(Display *dpy, Colormap cmap, const char *colstr)
+{
+	XColor color;
+	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
+	return color.pixel;
+}
+
+void
+loadcolors(Display *dpy, int screen, Brush *b,
+		const char *bg, const char *fg, const char *border)
+{
+	Colormap cmap = DefaultColormap(dpy, screen);
+	b->bg = xloadcolors(dpy, cmap, bg);
+	b->fg = xloadcolors(dpy, cmap, fg);
+	b->border = xloadcolors(dpy, cmap, border);
+}
+
+unsigned int
+textnw(Fnt *font, char *text, unsigned int len)
+{
+	XRectangle r;
+	if(font->set) {
+		XmbTextExtents(font->set, text, len, NULL, &r);
+		return r.width;
+	}
+	return XTextWidth(font->xfont, text, len);
+}
+
+unsigned int
+textw(Fnt *font, char *text)
+{
+	return textnw(font, text, strlen(text));
+}
+
+unsigned int
+texth(Fnt *font)
+{
+	return font->height + 4;
+}
+
+void
+loadfont(Display *dpy, Fnt *font, const char *fontstr)
+{
+	char **missing, *def;
+	int n;
+
+	missing = NULL;
+	def = "?";
+	setlocale(LC_ALL, "");
+	if(font->set)
+		XFreeFontSet(dpy, font->set);
+	font->set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
+	if(missing) {
+		while(n--)
+			fprintf(stderr, "missing fontset: %s\n", missing[n]);
+		XFreeStringList(missing);
+		if(font->set) {
+			XFreeFontSet(dpy, font->set);
+			font->set = NULL;
+		}
+	}
+	if(font->set) {
+		XFontSetExtents *font_extents;
+		XFontStruct **xfonts;
+		char **font_names;
+		unsigned int i;
+
+		font->ascent = font->descent = 0;
+		font_extents = XExtentsOfFontSet(font->set);
+		n = XFontsOfFontSet(font->set, &xfonts, &font_names);
+		for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) {
+			if(font->ascent < (*xfonts)->ascent)
+				font->ascent = (*xfonts)->ascent;
+			if(font->descent < (*xfonts)->descent)
+				font->descent = (*xfonts)->descent;
+			xfonts++;
+		}
+	}
+	else {
+		if(font->xfont)
+			XFreeFont(dpy, font->xfont);
+		font->xfont = NULL;
+		font->xfont = XLoadQueryFont(dpy, fontstr);
+		if (!font->xfont)
+			font->xfont = XLoadQueryFont(dpy, "fixed");
+		if (!font->xfont)
+			eprint("error, cannot load 'fixed' font\n");
+		font->ascent = font->xfont->ascent;
+		font->descent = font->xfont->descent;
+	}
+	font->height = font->ascent + font->descent;
+}

main.c

@@ -0,0 +1,426 @@
+/*
+ * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * (C)opyright MMVI Sander van Dijk <a dot h dot vandijk at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#include "dmenu.h"
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <X11/cursorfont.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+
+typedef struct Item Item;
+
+struct Item {
+	Item *next;		/* traverses all items */
+	Item *left, *right;	/* traverses items matching current search pattern */
+	char *text;
+};
+
+static Display *dpy;
+static Window root;
+static Window win;
+static Bool done = False;
+
+static Item *allitem = NULL;	/* first of all items */
+static Item *item = NULL;	/* first of pattern matching items */
+static Item *sel = NULL;
+static Item *nextoff = NULL;
+static Item *prevoff = NULL;
+static Item *curroff = NULL;
+
+static int screen, mx, my, mw, mh;
+static char *title = NULL;
+static char text[4096];
+static int ret = 0;
+static int nitem = 0;
+static unsigned int cmdw = 0;
+static unsigned int tw = 0;
+static unsigned int cw = 0;
+static const int seek = 30;		/* 30px */
+
+static Brush brush = {0};
+
+static void draw_menu();
+static void kpress(XKeyEvent * e);
+
+static char version[] = "dmenu - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
+
+static void
+update_offsets()
+{
+	unsigned int tw, w = cmdw + 2 * seek;
+
+	if(!curroff)
+		return;
+
+	for(nextoff = curroff; nextoff; nextoff=nextoff->right) {
+		tw = textw(&brush.font, nextoff->text);
+		if(tw > mw / 3)
+			tw = mw / 3;
+		w += tw + brush.font.height;
+		if(w > mw)
+			break;
+	}
+
+	w = cmdw + 2 * seek;
+	for(prevoff = curroff; prevoff && prevoff->left; prevoff=prevoff->left) {
+		tw = textw(&brush.font, prevoff->left->text);
+		if(tw > mw / 3)
+			tw = mw / 3;
+		w += tw + brush.font.height;
+		if(w > mw)
+			break;
+	}
+}
+
+static void
+update_items(char *pattern)
+{
+	unsigned int plen = strlen(pattern);
+	Item *i, *j;
+
+	if(!pattern)
+		return;
+
+	if(!title || *pattern)
+		cmdw = cw;
+	else
+		cmdw = tw;
+
+	item = j = NULL;
+	nitem = 0;
+
+	for(i = allitem; i; i=i->next)
+		if(!plen || !strncmp(pattern, i->text, plen)) {
+			if(!j)
+				item = i;
+			else
+				j->right = i;
+			i->left = j;
+			i->right = NULL;
+			j = i;
+			nitem++;
+		}
+	for(i = allitem; i; i=i->next)
+		if(plen && strncmp(pattern, i->text, plen)
+				&& strstr(i->text, pattern)) {
+			if(!j)
+				item = i;
+			else
+				j->right = i;
+			i->left = j;
+			i->right = NULL;
+			j = i;
+			nitem++;
+		}
+
+	curroff = prevoff = nextoff = sel = item;
+
+	update_offsets();
+}
+
+/* creates brush structs for brush mode drawing */
+static void
+draw_menu()
+{
+	Item *i;
+
+	brush.x = 0;
+	brush.y = 0;
+	brush.w = mw;
+	brush.h = mh;
+	draw(dpy, &brush, False, 0);
+
+	/* print command */
+	if(!title || text[0]) {
+		cmdw = cw;
+		if(cmdw && item)
+			brush.w = cmdw;
+		draw(dpy, &brush, False, text);
+	}
+	else {
+		cmdw = tw;
+		brush.w = cmdw;
+		draw(dpy, &brush, False, title);
+	}
+	brush.x += brush.w;
+
+	if(curroff) {
+		brush.w = seek;
+		draw(dpy, &brush, False, (curroff && curroff->left) ? "<" : 0);
+		brush.x += brush.w;
+
+		/* determine maximum items */
+		for(i = curroff; i != nextoff; i=i->right) {
+			brush.border = False;
+			brush.w = textw(&brush.font, i->text);
+			if(brush.w > mw / 3)
+				brush.w = mw / 3;
+			brush.w += brush.font.height;
+			if(sel == i) {
+				swap((void **)&brush.fg, (void **)&brush.bg);
+				draw(dpy, &brush, True, i->text);
+				swap((void **)&brush.fg, (void **)&brush.bg);
+			}
+			else
+				draw(dpy, &brush, False, i->text);
+			brush.x += brush.w;
+		}
+
+		brush.x = mw - seek;
+		brush.w = seek;
+		draw(dpy, &brush, False, nextoff ? ">" : 0);
+	}
+	XCopyArea(dpy, brush.drawable, win, brush.gc, 0, 0, mw, mh, 0, 0);
+	XFlush(dpy);
+}
+
+static void
+kpress(XKeyEvent * e)
+{
+	KeySym ksym;
+	char buf[32];
+	int num, prev_nitem;
+	unsigned int i, len = strlen(text);
+
+	buf[0] = 0;
+	num = XLookupString(e, buf, sizeof(buf), &ksym, 0);
+
+	if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
+			|| IsMiscFunctionKey(ksym) || IsPFKey(ksym)
+			|| IsPrivateKeypadKey(ksym))
+		return;
+
+	/* first check if a control mask is omitted */
+	if(e->state & ControlMask) {
+		switch (ksym) {
+		default:	/* ignore other control sequences */
+			return;
+			break;
+		case XK_h:
+			ksym = XK_BackSpace;
+			break;
+		case XK_U:
+		case XK_u:
+			text[0] = 0;
+			update_items(text);
+			draw_menu();
+			return;
+			break;
+		case XK_bracketleft:
+			ksym = XK_Escape;
+			break;
+		}
+	}
+	switch(ksym) {
+	case XK_Left:
+		if(!(sel && sel->left))
+			return;
+		sel=sel->left;
+		if(sel->right == curroff) {
+			curroff = prevoff;
+			update_offsets();
+		}
+		break;
+	case XK_Tab:
+		if(!sel)
+			return;
+		strncpy(text, sel->text, sizeof(text));
+		update_items(text);
+		break;
+	case XK_Right:
+		if(!(sel && sel->right))
+			return;
+		sel=sel->right;
+		if(sel == nextoff) {
+			curroff = nextoff;
+			update_offsets();
+		}
+		break;
+	case XK_Return:
+		if(e->state & ShiftMask) {
+			if(text)
+				fprintf(stdout, "%s", text);
+		}
+		else if(sel)
+			fprintf(stdout, "%s", sel->text);
+		else if(text)
+			fprintf(stdout, "%s", text);
+		fflush(stdout);
+		done = True;
+		break;
+	case XK_Escape:
+		ret = 1;
+		done = True;
+		break;
+	case XK_BackSpace:
+		if((i = len)) {
+			prev_nitem = nitem;
+			do {
+				text[--i] = 0;
+				update_items(text);
+			} while(i && nitem && prev_nitem == nitem);
+			update_items(text);
+		}
+		break;
+	default:
+		if(num && !iscntrl((int) buf[0])) {
+			buf[num] = 0;
+			if(len > 0)
+				strncat(text, buf, sizeof(text));
+			else
+				strncpy(text, buf, sizeof(text));
+			update_items(text);
+		}
+	}
+	draw_menu();
+}
+
+static char *
+read_allitems()
+{
+	static char *maxname = NULL;
+	char *p, buf[1024];
+	unsigned int len = 0, max = 0;
+	Item *i, *new;
+
+	i = 0;
+	while(fgets(buf, sizeof(buf), stdin)) {
+		len = strlen(buf);
+		if (buf[len - 1] == '\n')
+			buf[len - 1] = 0;
+		p = estrdup(buf);
+		if(max < len) {
+			maxname = p;
+			max = len;
+		}
+
+		new = emalloc(sizeof(Item));
+		new->next = new->left = new->right = NULL;
+		new->text = p;
+		if(!i)
+			allitem = new;
+		else 
+			i->next = new;
+		i = new;
+	}
+
+	return maxname;
+}
+
+int
+main(int argc, char *argv[])
+{
+	int i;
+	XSetWindowAttributes wa;
+	char *maxname;
+	XEvent ev;
+
+	/* command line args */
+	for(i = 1; i < argc; i++) {
+		if (argv[i][0] == '-')
+			switch (argv[i][1]) {
+			case 'v':
+				fprintf(stdout, "%s", version);
+				exit(0);
+				break;
+			case 't':
+				if(++i < argc) {
+					title = argv[i];
+					break;
+				}
+			default:
+				eprint("usage: dmenu [-v] [-t <title>]\n");
+				break;
+			}
+		else
+			eprint("usage: dmenu [-v] [-t <title>]\n");
+	}
+
+	dpy = XOpenDisplay(0);
+	if(!dpy)
+		eprint("dmenu: cannot open dpy\n");
+	screen = DefaultScreen(dpy);
+	root = RootWindow(dpy, screen);
+
+	maxname = read_allitems();
+
+	/* grab as early as possible, but after reading all items!!! */
+	while(XGrabKeyboard(dpy, root, True, GrabModeAsync,
+			 GrabModeAsync, CurrentTime) != GrabSuccess)
+		usleep(1000);
+
+	/* style */
+	loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
+	loadfont(dpy, &brush.font, FONT);
+
+	wa.override_redirect = 1;
+	wa.background_pixmap = ParentRelative;
+	wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
+
+	mx = my = 0;
+	mw = DisplayWidth(dpy, screen);
+	mh = texth(&brush.font);
+
+	win = XCreateWindow(dpy, root, mx, my, mw, mh, 0,
+			DefaultDepth(dpy, screen), CopyFromParent,
+			DefaultVisual(dpy, screen),
+			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
+	XDefineCursor(dpy, win, XCreateFontCursor(dpy, XC_xterm));
+	XFlush(dpy);
+
+	/* pixmap */
+	brush.gc = XCreateGC(dpy, root, 0, 0);
+	brush.drawable = XCreatePixmap(dpy, win, mw, mh,
+			DefaultDepth(dpy, screen));
+	XFlush(dpy);
+
+	if(maxname)
+		cw = textw(&brush.font, maxname) + brush.font.height;
+	if(cw > mw / 3)
+		cw = mw / 3;
+
+	if(title) {
+		tw = textw(&brush.font, title) + brush.font.height;
+		if(tw > mw / 3)
+			tw = mw / 3;
+	}
+
+	cmdw = title ? tw : cw;
+
+	text[0] = 0;
+	update_items(text);
+	XMapRaised(dpy, win);
+	draw_menu();
+	XFlush(dpy);
+
+	/* main event loop */
+	while(!done && !XNextEvent(dpy, &ev)) {
+		switch (ev.type) {
+		case KeyPress:
+			kpress(&ev.xkey);
+			break;
+		case Expose:
+			if(ev.xexpose.count == 0)
+				draw_menu();
+			break;
+		default:
+			break;
+		}
+	}
+
+	XUngrabKeyboard(dpy, CurrentTime);
+	XFreePixmap(dpy, brush.drawable);
+	XFreeGC(dpy, brush.gc);
+	XDestroyWindow(dpy, win);
+	XCloseDisplay(dpy);
+
+	return ret;
+}

util.c

@@ -0,0 +1,68 @@
+/*
+ * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+#include "dmenu.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+/* static */
+
+static void
+bad_malloc(unsigned int size)
+{
+	eprint("fatal: could not malloc() %u bytes\n", size);
+}
+
+/* extern */
+
+void *
+emalloc(unsigned int size)
+{
+	void *res = malloc(size);
+	if(!res)
+		bad_malloc(size);
+	return res;
+}
+
+void *
+emallocz(unsigned int size)
+{
+	void *res = calloc(1, size);
+
+	if(!res)
+		bad_malloc(size);
+	return res;
+}
+
+void
+eprint(const char *errstr, ...)
+{
+	va_list ap;
+
+	va_start(ap, errstr);
+	vfprintf(stderr, errstr, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+char *
+estrdup(const char *str)
+{
+	void *res = strdup(str);
+	if(!res)
+		bad_malloc(strlen(str));
+	return res;
+}
+
+void
+swap(void **p1, void **p2)
+{
+	void *tmp = *p1;
+	*p1 = *p2;
+	*p2 = tmp;
+}