X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/72a8eb412f48edb6c3b113d2582722d1bc7c68ce..a662fc6e0abeacb64b5b37cedccaeee782f9454e:/dmenu.c?ds=inline

diff --git a/dmenu.c b/dmenu.c
index b28a548..40b220c 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -1,455 +1,341 @@
 /* See LICENSE file for copyright and license details. */
 #include <ctype.h>
-#include <locale.h>
-#include <stdarg.h>
-#include <stdlib.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <X11/Xlib.h>
+#include <X11/Xatom.h>
 #include <X11/Xutil.h>
-#include <X11/keysym.h>
-
-/* macros */
-#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
-
-/* enums */
-enum { ColFG, ColBG, ColLast };
-
-/* typedefs */
-typedef struct {
-	int x, y, w, h;
-	unsigned long norm[ColLast];
-	unsigned long sel[ColLast];
-	Drawable drawable;
-	GC gc;
-	struct {
-		XFontStruct *xfont;
-		XFontSet set;
-		int ascent;
-		int descent;
-		int height;
-	} font;
-} DC; /* draw context */
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif
+#include "draw.h"
+
+#define INRECT(x,y,rx,ry,rw,rh) ((x) >= (rx) && (x) < (rx)+(rw) && (y) >= (ry) && (y) < (ry)+(rh))
+#define MIN(a,b)                ((a) < (b) ? (a) : (b))
+#define MAX(a,b)                ((a) > (b) ? (a) : (b))
 
 typedef struct Item Item;
 struct Item {
-	Item *next;		/* traverses all items */
-	Item *left, *right;	/* traverses items matching current search pattern */
 	char *text;
-	Bool matched;
+	Item *left, *right;
 };
 
-/* forward declarations */
-Item *appenditem(Item *i, Item *last);
-void calcoffsets(void);
-void cleanup(void);
-void drawmenu(void);
-void drawtext(const char *text, unsigned long col[ColLast]);
-void *emalloc(unsigned int size);
-void eprint(const char *errstr, ...);
-char *estrdup(const char *str);
-unsigned long getcolor(const char *colstr);
-Bool grabkeyboard(void);
-void initfont(const char *fontstr);
-void kpress(XKeyEvent * e);
-void match(char *pattern);
-void readstdin(void);
-void run(void);
-void setup(Bool bottom);
-int strcaseido(const char *text, const char *pattern);
-unsigned int textnw(const char *text, unsigned int len);
-unsigned int textw(const char *text);
-
-#include "config.h"
-
-/* variables */
-char *font = FONT;
-char *maxname = NULL;
-char *normbg = NORMBGCOLOR;
-char *normfg = NORMFGCOLOR;
-char *prompt = NULL;
-char *selbg = SELBGCOLOR;
-char *selfg = SELFGCOLOR;
-char text[4096];
-int screen;
-int ret = 0;
-unsigned int cmdw = 0;
-unsigned int mw, mh;
-unsigned int promptw = 0;
-unsigned int nitem = 0;
-unsigned int numlockmask = 0;
-Bool idomatch = False;
-Bool running = True;
-Display *dpy;
-DC dc = {0};
-Item *allitems = NULL;	/* first of all items */
-Item *item = NULL;	/* first of pattern matching items */
-Item *sel = NULL;
-Item *next = NULL;
-Item *prev = NULL;
-Item *curr = NULL;
-Window root, win;
-
-Item *
-appenditem(Item *i, Item *last) {
-	if(!last)
-		item = i;
-	else
-		last->right = i;
-	i->matched = True;
-	i->left = last;
-	i->right = NULL;
-	last = i;
-	nitem++;
-	return last;
-}
+static void appenditem(Item *item, Item **list, Item **last);
+static void calcoffsets(void);
+static void drawmenu(void);
+static char *fstrstr(const char *s, const char *sub);
+static void grabkeyboard(void);
+static void insert(const char *s, ssize_t n);
+static void keypress(XKeyEvent *ev);
+static void match(void);
+static size_t nextrune(int incr);
+static void paste(void);
+static void readstdin(void);
+static void run(void);
+static void setup(void);
+
+static char text[BUFSIZ] = "";
+static int bh, mw, mh;
+static int inputw = 0;
+static int lines = 0;
+static int monitor = -1;
+static int promptw;
+static size_t cursor = 0;
+static const char *font = NULL;
+static const char *prompt = NULL;
+static const char *normbgcolor = "#cccccc";
+static const char *normfgcolor = "#000000";
+static const char *selbgcolor  = "#0066ff";
+static const char *selfgcolor  = "#ffffff";
+static unsigned long normcol[ColLast];
+static unsigned long selcol[ColLast];
+static Atom utf8;
+static Bool topbar = True;
+static DC *dc;
+static Item *items = NULL;
+static Item *matches, *matchend;
+static Item *prev, *curr, *next, *sel;
+static Window root, win;
+
+static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
 
-void
-calcoffsets(void) {
-	unsigned int tw, w;
+int
+main(int argc, char *argv[]) {
+	Bool fast = False;
+	int i;
 
-	if(!curr)
-		return;
-	w = promptw + cmdw + 2 * SPACE;
-	for(next = curr; next; next=next->right) {
-		tw = textw(next->text);
-		if(tw > mw / 3)
-			tw = mw / 3;
-		w += tw;
-		if(w > mw)
-			break;
+	for(i = 1; i < argc; i++)
+		/* single flags */
+		if(!strcmp(argv[i], "-v")) {
+			fputs("dmenu-"VERSION", © 2006-2011 dmenu engineers, see LICENSE for details\n", stdout);
+			exit(EXIT_SUCCESS);
+		}
+		else if(!strcmp(argv[i], "-b"))
+			topbar = False;
+		else if(!strcmp(argv[i], "-f"))
+			fast = True;
+		else if(!strcmp(argv[i], "-i"))
+			fstrncmp = strncasecmp;
+		else if(i == argc-1)
+			goto usage;
+		/* double flags */
+		else if(!strcmp(argv[i], "-l"))
+			lines = atoi(argv[++i]);
+		else if(!strcmp(argv[i], "-m"))
+			monitor = atoi(argv[++i]);
+		else if(!strcmp(argv[i], "-p"))
+			prompt = argv[++i];
+		else if(!strcmp(argv[i], "-fn"))
+			font = argv[++i];
+		else if(!strcmp(argv[i], "-nb"))
+			normbgcolor = argv[++i];
+		else if(!strcmp(argv[i], "-nf"))
+			normfgcolor = argv[++i];
+		else if(!strcmp(argv[i], "-sb"))
+			selbgcolor = argv[++i];
+		else if(!strcmp(argv[i], "-sf"))
+			selfgcolor = argv[++i];
+		else
+			goto usage;
+
+	dc = initdc();
+	initfont(dc, font);
+
+	if(fast) {
+		setup();
+		readstdin();
 	}
-	w = promptw + cmdw + 2 * SPACE;
-	for(prev = curr; prev && prev->left; prev=prev->left) {
-		tw = textw(prev->left->text);
-		if(tw > mw / 3)
-			tw = mw / 3;
-		w += tw;
-		if(w > mw)
-			break;
+	else {
+		readstdin();
+		setup();
 	}
+	match();
+	run();
+	return EXIT_FAILURE;
+
+usage:
+	fputs("usage: dmenu [-b] [-f] [-i] [-l lines] [-m monitor] [-p prompt] [-fn font]\n"
+	      "             [-nb color] [-nf color] [-sb color] [-sf color] [-v]\n", stderr);
+	return EXIT_FAILURE;
 }
 
 void
-cleanup(void) {
-	Item *itm;
-
-	while(allitems) {
-		itm = allitems->next;
-		free(allitems->text);
-		free(allitems);
-		allitems = itm;
-	}
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
+appenditem(Item *item, Item **list, Item **last) {
+	if(!*last)
+		*list = item;
 	else
-		XFreeFont(dpy, dc.font.xfont);
-	XFreePixmap(dpy, dc.drawable);
-	XFreeGC(dpy, dc.gc);
-	XDestroyWindow(dpy, win);
-	XUngrabKeyboard(dpy, CurrentTime);
+		(*last)->right = item;
+	item->left = *last;
+	item->right = NULL;
+	*last = item;
 }
 
 void
-drawmenu(void) {
-	Item *i;
-
-	dc.x = 0;
-	dc.y = 0;
-	dc.w = mw;
-	dc.h = mh;
-	drawtext(NULL, dc.norm);
-	/* print prompt? */
-	if(promptw) {
-		dc.w = promptw;
-		drawtext(prompt, dc.sel);
-	}
-	dc.x += promptw;
-	dc.w = mw - promptw;
-	/* print command */
-	if(cmdw && item)
-		dc.w = cmdw;
-	drawtext(text[0] ? text : NULL, dc.norm);
-	dc.x += cmdw;
-	if(curr) {
-		dc.w = SPACE;
-		drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
-		dc.x += dc.w;
-		/* determine maximum items */
-		for(i = curr; i != next; i=i->right) {
-			dc.w = textw(i->text);
-			if(dc.w > mw / 3)
-				dc.w = mw / 3;
-			drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
-			dc.x += dc.w;
-		}
-		dc.x = mw - SPACE;
-		dc.w = SPACE;
-		drawtext(next ? ">" : NULL, dc.norm);
-	}
-	XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
-	XFlush(dpy);
-}
+calcoffsets(void) {
+	unsigned int i, n;
 
-void
-drawtext(const char *text, unsigned long col[ColLast]) {
-	int x, y, w, h;
-	static char buf[256];
-	unsigned int len, olen;
-	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-
-	XSetForeground(dpy, dc.gc, col[ColBG]);
-	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
-	if(!text)
-		return;
-	w = 0;
-	olen = len = strlen(text);
-	if(len >= sizeof buf)
-		len = sizeof buf - 1;
-	memcpy(buf, text, len);
-	buf[len] = 0;
-	h = dc.font.ascent + dc.font.descent;
-	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
-	x = dc.x + (h / 2);
-	/* shorten text if necessary */
-	while(len && (w = textnw(buf, len)) > dc.w - h)
-		buf[--len] = 0;
-	if(len < olen) {
-		if(len > 1)
-			buf[len - 1] = '.';
-		if(len > 2)
-			buf[len - 2] = '.';
-		if(len > 3)
-			buf[len - 3] = '.';
-	}
-	if(w > dc.w)
-		return; /* too long */
-	XSetForeground(dpy, dc.gc, col[ColFG]);
-	if(dc.font.set)
-		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
+	if(lines > 0)
+		n = lines * bh;
 	else
-		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
-}
-
-void *
-emalloc(unsigned int size) {
-	void *res = malloc(size);
+		n = mw - (promptw + inputw + textw(dc, "<") + textw(dc, ">"));
 
-	if(!res)
-		eprint("fatal: could not malloc() %u bytes\n", size);
-	return res;
+	for(i = 0, next = curr; next; next = next->right)
+		if((i += (lines > 0) ? bh : MIN(textw(dc, next->text), n)) > n)
+			break;
+	for(i = 0, prev = curr; prev && prev->left; prev = prev->left)
+		if((i += (lines > 0) ? bh : MIN(textw(dc, prev->left->text), n)) > n)
+			break;
 }
 
 void
-eprint(const char *errstr, ...) {
-	va_list ap;
-
-	va_start(ap, errstr);
-	vfprintf(stderr, errstr, ap);
-	va_end(ap);
-	exit(EXIT_FAILURE);
+drawmenu(void) {
+	int curpos;
+	Item *item;
+
+	dc->x = 0;
+	dc->y = 0;
+	dc->h = bh;
+	drawrect(dc, 0, 0, mw, mh, True, BG(dc, normcol));
+
+	if(prompt) {
+		dc->w = promptw;
+		drawtext(dc, prompt, selcol);
+		dc->x = dc->w;
+	}
+	dc->w = (lines > 0 || !matches) ? mw - dc->x : inputw;
+	drawtext(dc, text, normcol);
+	if((curpos = textnw(dc, text, cursor) + dc->h/2 - 2) < dc->w)
+		drawrect(dc, curpos, 2, 1, dc->h - 4, True, FG(dc, normcol));
+
+	if(lines > 0) {
+		dc->w = mw - dc->x;
+		for(item = curr; item != next; item = item->right) {
+			dc->y += dc->h;
+			drawtext(dc, item->text, (item == sel) ? selcol : normcol);
+		}
+	}
+	else if(matches) {
+		dc->x += inputw;
+		dc->w = textw(dc, "<");
+		if(curr->left)
+			drawtext(dc, "<", normcol);
+		for(item = curr; item != next; item = item->right) {
+			dc->x += dc->w;
+			dc->w = MIN(textw(dc, item->text), mw - dc->x - textw(dc, ">"));
+			drawtext(dc, item->text, (item == sel) ? selcol : normcol);
+		}
+		dc->w = textw(dc, ">");
+		dc->x = mw - dc->w;
+		if(next)
+			drawtext(dc, ">", normcol);
+	}
+	mapdc(dc, win, mw, mh);
 }
 
 char *
-estrdup(const char *str) {
-	void *res = strdup(str);
-
-	if(!res)
-		eprint("fatal: could not malloc() %u bytes\n", strlen(str));
-	return res;
-}
-
-unsigned long
-getcolor(const char *colstr) {
-	Colormap cmap = DefaultColormap(dpy, screen);
-	XColor color;
+fstrstr(const char *s, const char *sub) {
+	size_t len;
 
-	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
-		eprint("error, cannot allocate color '%s'\n", colstr);
-	return color.pixel;
+	for(len = strlen(sub); *s; s++)
+		if(!fstrncmp(s, sub, len))
+			return (char *)s;
+	return NULL;
 }
 
-Bool
+void
 grabkeyboard(void) {
-	unsigned int len;
+	int i;
 
-	for(len = 1000; len; len--) {
-		if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
-			== GrabSuccess)
-			break;
+	for(i = 0; i < 1000; i++) {
+		if(!XGrabKeyboard(dc->dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime))
+			return;
 		usleep(1000);
 	}
-	return len > 0;
+	eprintf("cannot grab keyboard\n");
 }
 
 void
-initfont(const char *fontstr) {
-	char *def, **missing;
-	int i, n;
-
-	if(!fontstr || fontstr[0] == '\0')
-		eprint("error, cannot load font: '%s'\n", fontstr);
-	missing = NULL;
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
-	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
-	if(missing)
-		XFreeStringList(missing);
-	if(dc.font.set) {
-		XFontSetExtents *font_extents;
-		XFontStruct **xfonts;
-		char **font_names;
-		dc.font.ascent = dc.font.descent = 0;
-		font_extents = XExtentsOfFontSet(dc.font.set);
-		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
-		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
-			if(dc.font.ascent < (*xfonts)->ascent)
-				dc.font.ascent = (*xfonts)->ascent;
-			if(dc.font.descent < (*xfonts)->descent)
-				dc.font.descent = (*xfonts)->descent;
-			xfonts++;
-		}
-	}
-	else {
-		if(dc.font.xfont)
-			XFreeFont(dpy, dc.font.xfont);
-		dc.font.xfont = NULL;
-		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
-		&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
-			eprint("error, cannot load font: '%s'\n", fontstr);
-		dc.font.ascent = dc.font.xfont->ascent;
-		dc.font.descent = dc.font.xfont->descent;
-	}
-	dc.font.height = dc.font.ascent + dc.font.descent;
+insert(const char *s, ssize_t n) {
+	if(strlen(text) + n > sizeof text - 1)
+		return;
+	memmove(text + cursor + n, text + cursor, sizeof text - cursor - MAX(n, 0));
+	if(n > 0)
+		memcpy(text + cursor, s, n);
+	cursor += n;
+	match();
 }
 
 void
-kpress(XKeyEvent * e) {
+keypress(XKeyEvent *ev) {
 	char buf[32];
-	int i, num;
-	unsigned int len;
+	size_t len;
 	KeySym ksym;
 
 	len = strlen(text);
-	buf[0] = 0;
-	num = XLookupString(e, buf, sizeof buf, &ksym, 0);
-	if(IsKeypadKey(ksym)) { 
-		if(ksym == XK_KP_Enter) {
-			ksym = XK_Return;
-		} else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) {
-			ksym = (ksym - XK_KP_0) + XK_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 */
+	XLookupString(ev, buf, sizeof buf, &ksym, NULL);
+	if(ev->state & ControlMask)
+		switch(tolower(ksym)) {
+		default:
 			return;
-		case XK_bracketleft:
+		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_h:
-		case XK_H:
 			ksym = XK_BackSpace;
 			break;
 		case XK_i:
-		case XK_I:
 			ksym = XK_Tab;
 			break;
 		case XK_j:
-		case XK_J:
 			ksym = XK_Return;
 			break;
-		case XK_u:
-		case XK_U:
-			text[0] = 0;
-			match(text);
-			drawmenu();
-			return;
-		case XK_w:
-		case XK_W:
-			if(len) {
-				i = len - 1;
-				while(i >= 0 && text[i] == ' ')
-					text[i--] = 0;
-				while(i >= 0 && text[i] != ' ')
-					text[i--] = 0;
-				match(text);
-				drawmenu();
-			}
-			return;
-		}
-	}
-	if(CLEANMASK(e->state) & Mod1Mask) {
-		switch(ksym) {
-		default: return;
-		case XK_h:
-			ksym = XK_Left;
+		case XK_k:  /* delete right */
+			text[cursor] = '\0';
+			match();
 			break;
-		case XK_l:
-			ksym = XK_Right;
-			break;
-		case XK_j:
-			ksym = XK_Next;
+		case XK_n:
+			ksym = XK_Down;
 			break;
-		case XK_k:
-			ksym = XK_Prior;
+		case XK_p:
+			ksym = XK_Up;
 			break;
-		case XK_g:
-			ksym = XK_Home;
+		case XK_u:  /* delete left */
+			insert(NULL, 0 - cursor);
 			break;
-		case XK_G:
-			ksym = XK_End;
+		case XK_w:  /* delete word */
+			while(cursor > 0 && text[nextrune(-1)] == ' ')
+				insert(NULL, nextrune(-1) - cursor);
+			while(cursor > 0 && text[nextrune(-1)] != ' ')
+				insert(NULL, nextrune(-1) - cursor);
 			break;
+		case XK_y:  /* paste selection */
+			XConvertSelection(dc->dpy, XA_PRIMARY, utf8, utf8, win, CurrentTime);
+			return;
 		}
-	}
 	switch(ksym) {
 	default:
-		if(num && !iscntrl((int) buf[0])) {
-			buf[num] = 0;
-			if(len > 0)
-				strncat(text, buf, sizeof text);
-			else
-				strncpy(text, buf, sizeof text);
-			match(text);
-		}
+		if(!iscntrl(*buf))
+			insert(buf, strlen(buf));
 		break;
+	case XK_Delete:
+		if(cursor == len)
+			return;
+		cursor = nextrune(+1);
 	case XK_BackSpace:
-		if(len) {
-			text[--len] = 0;
-			match(text);
-		}
+		if(cursor > 0)
+			insert(NULL, nextrune(-1) - cursor);
 		break;
 	case XK_End:
-		if(!item)
-			return;
-		while(next) {
-			sel = curr = next;
+		if(cursor < len) {
+			cursor = len;
+			break;
+		}
+		if(next) {
+			curr = matchend;
+			calcoffsets();
+			curr = prev;
 			calcoffsets();
+			while(next && (curr = curr->right))
+				calcoffsets();
 		}
-		while(sel && sel->right)
-			sel = sel->right;
+		sel = matchend;
 		break;
 	case XK_Escape:
-		ret = 1;
-		running = False;
-		break;
+		exit(EXIT_FAILURE);
 	case XK_Home:
-		if(!item)
-			return;
-		sel = curr = item;
+		if(sel == matches) {
+			cursor = 0;
+			break;
+		}
+		sel = curr = matches;
 		calcoffsets();
 		break;
 	case XK_Left:
-		if(!(sel && sel->left))
+		if(cursor > 0 && (!sel || !sel->left || lines > 0)) {
+			cursor = nextrune(-1);
+			break;
+		}
+		else if(lines > 0)
 			return;
-		sel=sel->left;
-		if(sel->right == curr) {
+	case XK_Up:
+		if(sel && sel->left && (sel = sel->left)->right == curr) {
 			curr = prev;
 			calcoffsets();
 		}
@@ -467,20 +353,18 @@ kpress(XKeyEvent * e) {
 		calcoffsets();
 		break;
 	case XK_Return:
-		if((e->state & ShiftMask) && text)
-			fprintf(stdout, "%s", text);
-		else if(sel)
-			fprintf(stdout, "%s", sel->text);
-		else if(text)
-			fprintf(stdout, "%s", text);
-		fflush(stdout);
-		running = False;
-		break;
+	case XK_KP_Enter:
+		fputs((sel && !(ev->state & ShiftMask)) ? sel->text : text, stdout);
+		exit(EXIT_SUCCESS);
 	case XK_Right:
-		if(!(sel && sel->right))
+		if(cursor < len) {
+			cursor = nextrune(+1);
+			break;
+		}
+		else if(lines > 0)
 			return;
-		sel=sel->right;
-		if(sel == next) {
+	case XK_Down:
+		if(sel && sel->right && (sel = sel->right) == next) {
 			curr = next;
 			calcoffsets();
 		}
@@ -489,62 +373,89 @@ kpress(XKeyEvent * e) {
 		if(!sel)
 			return;
 		strncpy(text, sel->text, sizeof text);
-		match(text);
+		cursor = strlen(text);
+		match();
 		break;
 	}
 	drawmenu();
 }
 
 void
-match(char *pattern) {
-	unsigned int plen;
-	Item *i, *j;
-
-	if(!pattern)
-		return;
-	plen = strlen(pattern);
-	item = j = NULL;
-	nitem = 0;
-	for(i = allitems; i; i=i->next)
-		i->matched = False;
-	for(i = allitems; i; i = i->next)
-		if(!i->matched && !strncasecmp(pattern, i->text, plen))
-			j = appenditem(i, j);
-	for(i = allitems; i; i = i->next)
-		if(!i->matched && strcasestr(i->text, pattern))
-			j = appenditem(i, j);
-	if(idomatch)
-		for(i = allitems; i; i = i->next)
-			if(!i->matched && strcaseido(i->text, pattern))
-				j = appenditem(i, j);
-	curr = prev = next = sel = item;
+match(void) {
+	size_t len = strlen(text);
+	Item *item, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
+
+	matches = lexact = lprefix = lsubstr = matchend = exactend = prefixend = substrend = NULL;
+	for(item = items; item && item->text; item++)
+		if(!fstrncmp(text, item->text, len + 1))
+			appenditem(item, &lexact, &exactend);
+		else if(!fstrncmp(text, item->text, len))
+			appenditem(item, &lprefix, &prefixend);
+		else if(fstrstr(item->text, text))
+			appenditem(item, &lsubstr, &substrend);
+
+	if(lexact) {
+		matches = lexact;
+		matchend = exactend;
+	}
+	if(lprefix) {
+		if(matchend) {
+			matchend->right = lprefix;
+			lprefix->left = matchend;
+		}
+		else
+			matches = lprefix;
+		matchend = prefixend;
+	}
+	if(lsubstr) {
+		if(matchend) {
+			matchend->right = lsubstr;
+			lsubstr->left = matchend;
+		}
+		else
+			matches = lsubstr;
+		matchend = substrend;
+	}
+	curr = sel = matches;
 	calcoffsets();
 }
 
+size_t
+nextrune(int incr) {
+	size_t n, len = strlen(text);
+
+	for(n = cursor + incr; n >= 0 && n < len && (text[n] & 0xc0) == 0x80; n += incr);
+	return n;
+}
+
+void
+paste(void) {
+	char *p, *q;
+	int di;
+	unsigned long dl;
+	Atom da;
+
+	XGetWindowProperty(dc->dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
+	                   utf8, &da, &di, &dl, &dl, (unsigned char **)&p);
+	insert(p, (q = strchr(p, '\n')) ? q-p : strlen(p));
+	XFree(p);
+	drawmenu();
+}
+
 void
 readstdin(void) {
-	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)
-			allitems = new;
-		else 
-			i->next = new;
-		i = new;
+	char buf[sizeof text], *p;
+	size_t i, size = 0;
+
+	for(i = 0; fgets(buf, sizeof buf, stdin); items[++i].text = NULL) {
+		if(i+1 == size / sizeof *items || !items)
+			if(!(items = realloc(items, (size += BUFSIZ))))
+				eprintf("cannot realloc %u bytes:", size);
+		if((p = strchr(buf, '\n')))
+			*p = '\0';
+		if(!(items[i].text = strdup(buf)))
+			eprintf("cannot strdup %u bytes:", strlen(buf)+1);
+		inputw = MAX(inputw, textw(dc, items[i].text));
 	}
 }
 
@@ -552,155 +463,83 @@ void
 run(void) {
 	XEvent ev;
 
-	/* main event loop */
-	while(running && !XNextEvent(dpy, &ev))
-		switch (ev.type) {
-		default:	/* ignore all crap */
-			break;
-		case KeyPress:
-			kpress(&ev.xkey);
-			break;
+	while(!XNextEvent(dc->dpy, &ev))
+		switch(ev.type) {
 		case Expose:
 			if(ev.xexpose.count == 0)
 				drawmenu();
 			break;
+		case KeyPress:
+			keypress(&ev.xkey);
+			break;
+		case SelectionNotify:
+			if(ev.xselection.property == utf8)
+				paste();
+			break;
+		case VisibilityNotify:
+			if(ev.xvisibility.state != VisibilityUnobscured)
+				XRaiseWindow(dc->dpy, win);
+			break;
 		}
 }
 
 void
-setup(Bool bottom) {
-	unsigned int i, j;
-	XModifierKeymap *modmap;
+setup(void) {
+	int x, y, screen;
 	XSetWindowAttributes wa;
-
-	/* init modifier map */
-	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);
-
-	/* style */
-	dc.norm[ColBG] = getcolor(normbg);
-	dc.norm[ColFG] = getcolor(normfg);
-	dc.sel[ColBG] = getcolor(selbg);
-	dc.sel[ColFG] = getcolor(selfg);
-	initfont(font);
-
-	/* menu window */
-	wa.override_redirect = 1;
-	wa.background_pixmap = ParentRelative;
-	wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
-	mw = DisplayWidth(dpy, screen);
-	mh = dc.font.height + 2;
-	win = XCreateWindow(dpy, root, 0,
-			bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
-			DefaultDepth(dpy, screen), CopyFromParent,
-			DefaultVisual(dpy, screen),
-			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
-
-	/* pixmap */
-	dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
-	dc.gc = XCreateGC(dpy, root, 0, 0);
-	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
-	if(!dc.font.set)
-		XSetFont(dpy, dc.gc, dc.font.xfont->fid);
-	if(maxname)
-		cmdw = textw(maxname);
-	if(cmdw > mw / 3)
-		cmdw = mw / 3;
-	if(prompt)
-		promptw = textw(prompt);
-	if(promptw > mw / 5)
-		promptw = mw / 5;
-	text[0] = 0;
-	match(text);
-	XMapRaised(dpy, win);
-}
-
-int
-strcaseido(const char *text, const char *pattern) {
-	for(; *text && *pattern; text++)
-		if(tolower((int)*text) == tolower((int)*pattern))
-			pattern++;
-	return !*pattern;
-}                                  
-
-unsigned int
-textnw(const char *text, unsigned int len) {
-	XRectangle r;
-
-	if(dc.font.set) {
-		XmbTextExtents(dc.font.set, text, len, NULL, &r);
-		return r.width;
+#ifdef XINERAMA
+	int n;
+	XineramaScreenInfo *info;
+#endif
+
+	screen = DefaultScreen(dc->dpy);
+	root = RootWindow(dc->dpy, screen);
+	utf8 = XInternAtom(dc->dpy, "UTF8_STRING", False);
+
+	normcol[ColBG] = getcolor(dc, normbgcolor);
+	normcol[ColFG] = getcolor(dc, normfgcolor);
+	selcol[ColBG] = getcolor(dc, selbgcolor);
+	selcol[ColFG] = getcolor(dc, selfgcolor);
+
+	/* menu geometry */
+	bh = dc->font.height + 2;
+	lines = MAX(lines, 0);
+	mh = (lines + 1) * bh;
+#ifdef XINERAMA
+	if((info = XineramaQueryScreens(dc->dpy, &n))) {
+		int i, di;
+		unsigned int du;
+		Window dw;
+
+		XQueryPointer(dc->dpy, root, &dw, &dw, &x, &y, &di, &di, &du);
+		for(i = 0; i < n-1; i++)
+			if((monitor == info[i].screen_number)
+			|| (monitor < 0 && INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height)))
+				break;
+		x = info[i].x_org;
+		y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
+		mw = info[i].width;
+		XFree(info);
 	}
-	return XTextWidth(dc.font.xfont, text, len);
-}
-
-unsigned int
-textw(const char *text) {
-	return textnw(text, strlen(text)) + dc.font.height;
-}
-
-int
-main(int argc, char *argv[]) {
-	Bool bottom = False;
-	unsigned int i;
-
-	/* command line args */
-	for(i = 1; i < argc; i++)
-		if(!strcmp(argv[i], "-b")) {
-			bottom = True;
-		}
-		else if(!strcmp(argv[i], "-i"))
-			idomatch = True;
-		else if(!strcmp(argv[i], "-fn")) {
-			if(++i < argc) font = argv[i];
-		}
-		else if(!strcmp(argv[i], "-nb")) {
-			if(++i < argc) normbg = argv[i];
-		}
-		else if(!strcmp(argv[i], "-nf")) {
-			if(++i < argc) normfg = argv[i];
-		}
-		else if(!strcmp(argv[i], "-p")) {
-			if(++i < argc) prompt = argv[i];
-		}
-		else if(!strcmp(argv[i], "-sb")) {
-			if(++i < argc) selbg = argv[i];
-		}
-		else if(!strcmp(argv[i], "-sf")) {
-			if(++i < argc) selfg = argv[i];
-		}
-		else if(!strcmp(argv[i], "-v"))
-			eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, Michał Janeczek\n");
-		else
-			eprint("usage: dmenu [-b] [-i] [-fn <font>] [-nb <color>] [-nf <color>]\n"
-			"             [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
-	setlocale(LC_CTYPE, "");
-	dpy = XOpenDisplay(0);
-	if(!dpy)
-		eprint("dmenu: cannot open display\n");
-	screen = DefaultScreen(dpy);
-	root = RootWindow(dpy, screen);
-
-	if(isatty(STDIN_FILENO)) {
-		readstdin();
-		running = grabkeyboard();
-	}
-	else { /* prevent keypress loss */
-		running = grabkeyboard();
-		readstdin();
+	else
+#endif
+	{
+		x = 0;
+		y = topbar ? 0 : DisplayHeight(dc->dpy, screen) - mh;
+		mw = DisplayWidth(dc->dpy, screen);
 	}
-
-	setup(bottom);
-	drawmenu();
-	XSync(dpy, False);
-	run();
-	cleanup();
-	XCloseDisplay(dpy);
-	return ret;
+	/* menu window */
+	wa.override_redirect = True;
+	wa.background_pixmap = ParentRelative;
+	wa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
+	win = XCreateWindow(dc->dpy, root, x, y, mw, mh, 0,
+	                    DefaultDepth(dc->dpy, screen), CopyFromParent,
+	                    DefaultVisual(dc->dpy, screen),
+	                    CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
+
+	grabkeyboard();
+	resizedc(dc, mw, mh);
+	inputw = MIN(inputw, mw/3);
+	promptw = prompt ? textw(dc, prompt) : 0;
+	XMapRaised(dc->dpy, win);
 }