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[dmenu.git] / dmenu.c
1 /* See LICENSE file for copyright and license details. */
2 #include <ctype.h>
3 #include <locale.h>
4 #include <stdarg.h>
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <string.h>
8 #include <strings.h>
9 #include <unistd.h>
10 #include <X11/keysym.h>
11 #include <X11/Xlib.h>
12 #include <X11/Xutil.h>
13 #ifdef XINERAMA
14 #include <X11/extensions/Xinerama.h>
15 #endif
16
17 /* macros */
18 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
19 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
20 #define MIN(a, b) ((a) < (b) ? (a) : (b))
21 #define MAX(a, b) ((a) > (b) ? (a) : (b))
22
23 /* enums */
24 enum { ColFG, ColBG, ColLast };
25
26 /* typedefs */
27 typedef struct {
28 int x, y, w, h;
29 unsigned long norm[ColLast];
30 unsigned long sel[ColLast];
31 Drawable drawable;
32 GC gc;
33 struct {
34 XFontStruct *xfont;
35 XFontSet set;
36 int ascent;
37 int descent;
38 int height;
39 } font;
40 } DC; /* draw context */
41
42 typedef struct Item Item;
43 struct Item {
44 char *text;
45 Item *next; /* traverses all items */
46 Item *left, *right; /* traverses items matching current search pattern */
47 };
48
49 /* forward declarations */
50 static void appenditem(Item *i, Item **list, Item **last);
51 static void calcoffsetsh(void);
52 static void calcoffsetsv(void);
53 static char *cistrstr(const char *s, const char *sub);
54 static void cleanup(void);
55 static void drawcursor(void);
56 static void drawmenu(void);
57 static void drawmenuh(void);
58 static void drawmenuv(void);
59 static void drawtext(const char *text, unsigned long col[ColLast]);
60 static void eprint(const char *errstr, ...);
61 static unsigned long getcolor(const char *colstr);
62 static Bool grabkeyboard(void);
63 static void initfont(const char *fontstr);
64 static void kpress(XKeyEvent * e);
65 static void match(char *pattern);
66 static void readstdin(void);
67 static void run(void);
68 static void setup(Bool topbar);
69 static int textnw(const char *text, unsigned int len);
70 static int textw(const char *text);
71
72 #include "config.h"
73
74 /* variables */
75 static char *maxname = NULL;
76 static char *prompt = NULL;
77 static char text[4096];
78 static int cmdw = 0;
79 static int promptw = 0;
80 static int ret = 0;
81 static int cursor = 0;
82 static int screen;
83 static unsigned int mw, mh;
84 static unsigned int numlockmask = 0;
85 static Bool running = True;
86 static Display *dpy;
87 static DC dc;
88 static Item *allitems = NULL; /* first of all items */
89 static Item *item = NULL; /* first of pattern matching items */
90 static Item *sel = NULL;
91 static Item *next = NULL;
92 static Item *prev = NULL;
93 static Item *curr = NULL;
94 static Window root, win;
95 static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
96 static char *(*fstrstr)(const char *, const char *) = strstr;
97 static Bool vlist = False;
98 static unsigned int lines = 5;
99 static void (*calcoffsets)(void) = calcoffsetsh;
100
101 void
102 appenditem(Item *i, Item **list, Item **last) {
103 if(!(*last))
104 *list = i;
105 else
106 (*last)->right = i;
107 i->left = *last;
108 i->right = NULL;
109 *last = i;
110 }
111
112 void
113 calcoffsetsh(void) {
114 int tw;
115 unsigned int w;
116
117 if(!curr)
118 return;
119 w = promptw + cmdw + 2 * spaceitem;
120 for(next = curr; next; next=next->right) {
121 tw = MIN(textw(next->text), mw / 3);
122 w += tw;
123 if(w > mw)
124 break;
125 }
126 w = promptw + cmdw + 2 * spaceitem;
127 for(prev = curr; prev && prev->left; prev=prev->left) {
128 tw = MIN(textw(prev->left->text), mw / 3);
129 w += tw;
130 if(w > mw)
131 break;
132 }
133 }
134
135 void
136 calcoffsetsv(void) {
137 static unsigned int h;
138
139 if(!curr)
140 return;
141 h = (dc.font.height + 2) * (lines + 1);
142 for(next = curr; next; next=next->right) {
143 h -= dc.font.height + 2;
144 if(h <= 0)
145 break;
146 }
147 h = (dc.font.height + 2) * (lines + 1);
148 for(prev = curr; prev && prev->left; prev=prev->left) {
149 h -= dc.font.height + 2;
150 if(h <= 0)
151 break;
152 }
153 }
154
155 char *
156 cistrstr(const char *s, const char *sub) {
157 int c, csub;
158 unsigned int len;
159
160 if(!sub)
161 return (char *)s;
162 if((c = *sub++) != 0) {
163 c = tolower(c);
164 len = strlen(sub);
165 do {
166 do {
167 if((csub = *s++) == 0)
168 return NULL;
169 }
170 while(tolower(csub) != c);
171 }
172 while(strncasecmp(s, sub, len) != 0);
173 s--;
174 }
175 return (char *)s;
176 }
177
178 void
179 cleanup(void) {
180 Item *itm;
181
182 while(allitems) {
183 itm = allitems->next;
184 free(allitems->text);
185 free(allitems);
186 allitems = itm;
187 }
188 if(dc.font.set)
189 XFreeFontSet(dpy, dc.font.set);
190 else
191 XFreeFont(dpy, dc.font.xfont);
192 XFreePixmap(dpy, dc.drawable);
193 XFreeGC(dpy, dc.gc);
194 XDestroyWindow(dpy, win);
195 XUngrabKeyboard(dpy, CurrentTime);
196 }
197
198 void
199 drawcursor(void) {
200 XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 };
201
202 r.x += textnw(text, cursor) + dc.font.height / 2;
203
204 XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
205 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
206 }
207
208 void
209 drawmenu(void) {
210 dc.x = 0;
211 dc.y = 0;
212 dc.w = mw;
213 dc.h = mh;
214 drawtext(NULL, dc.norm);
215 /* print prompt? */
216 if(promptw) {
217 dc.w = promptw;
218 drawtext(prompt, dc.sel);
219 }
220 dc.x += promptw;
221 dc.w = mw - promptw;
222 /* print command */
223 if(cmdw && item)
224 dc.w = cmdw;
225 drawtext(text[0] ? text : NULL, dc.norm);
226 drawcursor();
227 dc.x += cmdw;
228 if(curr) {
229 if(vlist)
230 drawmenuv();
231 else
232 drawmenuh();
233 }
234 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
235 XFlush(dpy);
236 }
237
238 void
239 drawmenuh(void) {
240 Item *i;
241
242 dc.w = spaceitem;
243 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
244 dc.x += dc.w;
245 /* determine maximum items */
246 for(i = curr; i != next; i=i->right) {
247 dc.w = MIN(textw(i->text), mw / 3);
248 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
249 dc.x += dc.w;
250 }
251 dc.x = mw - spaceitem;
252 dc.w = spaceitem;
253 drawtext(next ? ">" : NULL, dc.norm);
254 }
255
256 void
257 drawmenuv(void) {
258 Item *i;
259
260 dc.x = 0;
261 dc.w = mw;
262 dc.y += dc.font.height + 2;
263 /* determine maximum items */
264 for(i = curr; i != next; i=i->right) {
265 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
266 dc.y += dc.font.height + 2;
267 }
268 drawtext(NULL, dc.norm);
269 }
270
271 void
272 drawtext(const char *text, unsigned long col[ColLast]) {
273 char buf[256];
274 int i, x, y, h, len, olen;
275 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
276
277 XSetForeground(dpy, dc.gc, col[ColBG]);
278 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
279 if(!text)
280 return;
281 olen = strlen(text);
282 h = dc.font.height;
283 y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
284 x = dc.x + (h / 2);
285 /* shorten text if necessary */
286 for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
287 if(!len)
288 return;
289 memcpy(buf, text, len);
290 if(len < olen)
291 for(i = len; i && i > len - 3; buf[--i] = '.');
292 XSetForeground(dpy, dc.gc, col[ColFG]);
293 if(dc.font.set)
294 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
295 else
296 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
297 }
298
299 void
300 eprint(const char *errstr, ...) {
301 va_list ap;
302
303 va_start(ap, errstr);
304 vfprintf(stderr, errstr, ap);
305 va_end(ap);
306 exit(EXIT_FAILURE);
307 }
308
309 unsigned long
310 getcolor(const char *colstr) {
311 Colormap cmap = DefaultColormap(dpy, screen);
312 XColor color;
313
314 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
315 eprint("error, cannot allocate color '%s'\n", colstr);
316 return color.pixel;
317 }
318
319 Bool
320 grabkeyboard(void) {
321 unsigned int len;
322
323 for(len = 1000; len; len--) {
324 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
325 == GrabSuccess)
326 break;
327 usleep(1000);
328 }
329 return len > 0;
330 }
331
332 void
333 initfont(const char *fontstr) {
334 char *def, **missing;
335 int i, n;
336
337 if(!fontstr || fontstr[0] == '\0')
338 eprint("error, cannot load font: '%s'\n", fontstr);
339 missing = NULL;
340 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
341 if(missing)
342 XFreeStringList(missing);
343 if(dc.font.set) {
344 XFontSetExtents *font_extents;
345 XFontStruct **xfonts;
346 char **font_names;
347 dc.font.ascent = dc.font.descent = 0;
348 font_extents = XExtentsOfFontSet(dc.font.set);
349 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
350 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
351 dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
352 dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent);
353 xfonts++;
354 }
355 }
356 else {
357 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
358 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
359 eprint("error, cannot load font: '%s'\n", fontstr);
360 dc.font.ascent = dc.font.xfont->ascent;
361 dc.font.descent = dc.font.xfont->descent;
362 }
363 dc.font.height = dc.font.ascent + dc.font.descent;
364 }
365
366 void
367 kpress(XKeyEvent * e) {
368 char buf[sizeof text];
369 int i, num;
370 unsigned int len;
371 KeySym ksym;
372
373 len = strlen(text);
374 buf[0] = 0;
375 num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
376 if(IsKeypadKey(ksym)) {
377 if(ksym == XK_KP_Enter)
378 ksym = XK_Return;
379 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
380 ksym = (ksym - XK_KP_0) + XK_0;
381 }
382 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
383 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
384 || IsPrivateKeypadKey(ksym))
385 return;
386 /* first check if a control mask is omitted */
387 if(e->state & ControlMask) {
388 switch (ksym) {
389 default: /* ignore other control sequences */
390 return;
391 case XK_a:
392 case XK_A:
393 ksym = XK_Home;
394 break;
395 case XK_c:
396 case XK_C:
397 ksym = XK_Escape;
398 break;
399 case XK_e:
400 case XK_E:
401 ksym = XK_End;
402 break;
403 case XK_h:
404 case XK_H:
405 ksym = XK_BackSpace;
406 break;
407 case XK_i:
408 case XK_I:
409 ksym = XK_Tab;
410 break;
411 case XK_j:
412 case XK_J:
413 ksym = XK_Return;
414 break;
415 case XK_u:
416 case XK_U:
417 text[0] = 0;
418 match(text);
419 break;
420 case XK_w:
421 case XK_W:
422 if(cursor > 0) {
423 i = cursor;
424 while(i-- > 0 && text[i] == ' ');
425 while(i-- > 0 && text[i] != ' ');
426 memmove(text + i + 1, text + cursor, sizeof text - cursor + 1);
427 cursor = i + 1;
428 match(text);
429 }
430 break;
431 }
432 }
433 if(CLEANMASK(e->state) & Mod1Mask) {
434 switch(ksym) {
435 default: return;
436 case XK_h:
437 ksym = XK_Left;
438 break;
439 case XK_l:
440 ksym = XK_Right;
441 break;
442 case XK_j:
443 ksym = XK_Next;
444 break;
445 case XK_k:
446 ksym = XK_Prior;
447 break;
448 case XK_g:
449 ksym = XK_Home;
450 break;
451 case XK_G:
452 ksym = XK_End;
453 break;
454 case XK_p:
455 {
456 FILE *fp;
457 char *s;
458 if(!(fp = (FILE*)popen("sselp", "r")))
459 eprint("dmenu: Could not popen sselp\n");
460 s = fgets(buf, sizeof buf, fp);
461 pclose(fp);
462 if(s == NULL)
463 return;
464 }
465 num = strlen(buf);
466 if(num && buf[num-1] == '\n')
467 buf[--num] = '\0';
468 break;
469 }
470 }
471 switch(ksym) {
472 default:
473 num = MIN(num, sizeof text - cursor);
474 if(num && !iscntrl((int) buf[0])) {
475 memmove(text + cursor + num, text + cursor, sizeof text - cursor - num);
476 memcpy(text + cursor, buf, num);
477 cursor+=num;
478 match(text);
479 }
480 break;
481 case XK_BackSpace:
482 if(cursor > 0) {
483 memmove(text + cursor - 1, text + cursor, sizeof text - cursor + 1);
484 cursor--;
485 match(text);
486 }
487 break;
488 case XK_Delete:
489 memmove(text + cursor, text + cursor + 1, sizeof text - cursor);
490 match(text);
491 break;
492 case XK_End:
493 if(cursor < len) {
494 cursor = len;
495 break;
496 }
497 while(next) {
498 sel = curr = next;
499 calcoffsets();
500 }
501 while(sel && sel->right)
502 sel = sel->right;
503 break;
504 case XK_Escape:
505 ret = 1;
506 running = False;
507 break;
508 case XK_Home:
509 if(sel == item) {
510 cursor = 0;
511 break;
512 }
513 sel = curr = item;
514 calcoffsets();
515 break;
516 case XK_Left:
517 case XK_Up:
518 if(sel && sel->left){
519 sel=sel->left;
520 if(sel->right == curr) {
521 curr = prev;
522 calcoffsets();
523 }
524 }
525 else if(cursor > 0)
526 cursor--;
527 else
528 return;
529 break;
530 case XK_Next:
531 if(!next)
532 return;
533 sel = curr = next;
534 calcoffsets();
535 break;
536 case XK_Prior:
537 if(!prev)
538 return;
539 sel = curr = prev;
540 calcoffsets();
541 break;
542 case XK_Return:
543 if((e->state & ShiftMask) || !sel)
544 fprintf(stdout, "%s", text);
545 else
546 fprintf(stdout, "%s", sel->text);
547 fflush(stdout);
548 running = False;
549 break;
550 case XK_Right:
551 case XK_Down:
552 if(cursor < len)
553 cursor++;
554 else if(sel && sel->right) {
555 sel=sel->right;
556 if(sel == next) {
557 curr = next;
558 calcoffsets();
559 }
560 }
561 else
562 return;
563 break;
564 case XK_Tab:
565 if(!sel)
566 return;
567 strncpy(text, sel->text, sizeof text);
568 cursor = strlen(text);
569 match(text);
570 break;
571 }
572 drawmenu();
573 }
574
575 void
576 match(char *pattern) {
577 unsigned int plen;
578 Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
579
580 if(!pattern)
581 return;
582 plen = strlen(pattern);
583 item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
584 for(i = allitems; i; i = i->next)
585 if(!fstrncmp(pattern, i->text, plen + 1))
586 appenditem(i, &lexact, &exactend);
587 else if(!fstrncmp(pattern, i->text, plen))
588 appenditem(i, &lprefix, &prefixend);
589 else if(fstrstr(i->text, pattern))
590 appenditem(i, &lsubstr, &substrend);
591 if(lexact) {
592 item = lexact;
593 itemend = exactend;
594 }
595 if(lprefix) {
596 if(itemend) {
597 itemend->right = lprefix;
598 lprefix->left = itemend;
599 }
600 else
601 item = lprefix;
602 itemend = prefixend;
603 }
604 if(lsubstr) {
605 if(itemend) {
606 itemend->right = lsubstr;
607 lsubstr->left = itemend;
608 }
609 else
610 item = lsubstr;
611 }
612 curr = prev = next = sel = item;
613 calcoffsets();
614 }
615
616 void
617 readstdin(void) {
618 char *p, buf[sizeof text];
619 unsigned int len = 0, max = 0;
620 Item *i, *new;
621
622 i = NULL;
623 while(fgets(buf, sizeof buf, stdin)) {
624 len = strlen(buf);
625 if(buf[len-1] == '\n')
626 buf[--len] = '\0';
627 if(!(p = strdup(buf)))
628 eprint("fatal: could not strdup() %u bytes\n", len);
629 if(max < len) {
630 maxname = p;
631 max = len;
632 }
633 if(!(new = (Item *)malloc(sizeof(Item))))
634 eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
635 new->next = new->left = new->right = NULL;
636 new->text = p;
637 if(!i)
638 allitems = new;
639 else
640 i->next = new;
641 i = new;
642 }
643 }
644
645 void
646 run(void) {
647 XEvent ev;
648
649 /* main event loop */
650 while(running && !XNextEvent(dpy, &ev))
651 switch (ev.type) {
652 default: /* ignore all crap */
653 break;
654 case KeyPress:
655 kpress(&ev.xkey);
656 break;
657 case Expose:
658 if(ev.xexpose.count == 0)
659 drawmenu();
660 break;
661 }
662 }
663
664 void
665 setup(Bool topbar) {
666 int i, j, x, y;
667 #if XINERAMA
668 int n;
669 XineramaScreenInfo *info = NULL;
670 #endif
671 XModifierKeymap *modmap;
672 XSetWindowAttributes wa;
673
674 /* init modifier map */
675 modmap = XGetModifierMapping(dpy);
676 for(i = 0; i < 8; i++)
677 for(j = 0; j < modmap->max_keypermod; j++) {
678 if(modmap->modifiermap[i * modmap->max_keypermod + j]
679 == XKeysymToKeycode(dpy, XK_Num_Lock))
680 numlockmask = (1 << i);
681 }
682 XFreeModifiermap(modmap);
683
684 /* style */
685 dc.norm[ColBG] = getcolor(normbgcolor);
686 dc.norm[ColFG] = getcolor(normfgcolor);
687 dc.sel[ColBG] = getcolor(selbgcolor);
688 dc.sel[ColFG] = getcolor(selfgcolor);
689 initfont(font);
690
691 /* menu window */
692 wa.override_redirect = True;
693 wa.background_pixmap = ParentRelative;
694 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
695
696 /* menu window geometry */
697 mh = dc.font.height + 2;
698 mh = vlist ? mh * (lines+1) : mh;
699 #if XINERAMA
700 if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
701 i = 0;
702 if(n > 1) {
703 int di;
704 unsigned int dui;
705 Window dummy;
706 if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
707 for(i = 0; i < n; i++)
708 if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
709 break;
710 }
711 x = info[i].x_org;
712 y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
713 mw = info[i].width;
714 XFree(info);
715 }
716 else
717 #endif
718 {
719 x = 0;
720 y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
721 mw = DisplayWidth(dpy, screen);
722 }
723
724 win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
725 DefaultDepth(dpy, screen), CopyFromParent,
726 DefaultVisual(dpy, screen),
727 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
728
729 /* pixmap */
730 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
731 dc.gc = XCreateGC(dpy, root, 0, NULL);
732 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
733 if(!dc.font.set)
734 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
735 if(maxname)
736 cmdw = MIN(textw(maxname), mw / 3);
737 if(prompt)
738 promptw = MIN(textw(prompt), mw / 5);
739 text[0] = 0;
740 match(text);
741 XMapRaised(dpy, win);
742 }
743
744 int
745 textnw(const char *text, unsigned int len) {
746 XRectangle r;
747
748 if(dc.font.set) {
749 XmbTextExtents(dc.font.set, text, len, NULL, &r);
750 return r.width;
751 }
752 return XTextWidth(dc.font.xfont, text, len);
753 }
754
755 int
756 textw(const char *text) {
757 return textnw(text, strlen(text)) + dc.font.height;
758 }
759
760 int
761 main(int argc, char *argv[]) {
762 unsigned int i;
763 Bool topbar = True;
764
765 /* command line args */
766 for(i = 1; i < argc; i++)
767 if(!strcmp(argv[i], "-i")) {
768 fstrncmp = strncasecmp;
769 fstrstr = cistrstr;
770 }
771 else if(!strcmp(argv[i], "-b"))
772 topbar = False;
773 else if(!strcmp(argv[i], "-e")) {
774 if(++i < argc) root = atoi(argv[i]);
775 }
776 else if(!strcmp(argv[i], "-l")) {
777 vlist = True;
778 calcoffsets = calcoffsetsv;
779 if(++i < argc) lines = atoi(argv[i]);
780 }
781 else if(!strcmp(argv[i], "-fn")) {
782 if(++i < argc) font = argv[i];
783 }
784 else if(!strcmp(argv[i], "-nb")) {
785 if(++i < argc) normbgcolor = argv[i];
786 }
787 else if(!strcmp(argv[i], "-nf")) {
788 if(++i < argc) normfgcolor = argv[i];
789 }
790 else if(!strcmp(argv[i], "-p")) {
791 if(++i < argc) prompt = argv[i];
792 }
793 else if(!strcmp(argv[i], "-sb")) {
794 if(++i < argc) selbgcolor = argv[i];
795 }
796 else if(!strcmp(argv[i], "-sf")) {
797 if(++i < argc) selfgcolor = argv[i];
798 }
799 else if(!strcmp(argv[i], "-v"))
800 eprint("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
801 else
802 eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
803 " [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
804 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
805 fprintf(stderr, "warning: no locale support\n");
806 if(!(dpy = XOpenDisplay(NULL)))
807 eprint("dmenu: cannot open display\n");
808 screen = DefaultScreen(dpy);
809 if(!root)
810 root = RootWindow(dpy, screen);
811
812 readstdin();
813 running = grabkeyboard();
814
815 setup(topbar);
816 drawmenu();
817 XSync(dpy, False);
818 run();
819 cleanup();
820 XCloseDisplay(dpy);
821 return ret;
822 }