1 |
/*--------------------------------*-C-*---------------------------------* |
2 |
* File: misc.C |
3 |
*----------------------------------------------------------------------* |
4 |
* |
5 |
* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston |
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* Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> |
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* Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com> |
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* Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*----------------------------------------------------------------------*/ |
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|
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#include "../config.h" /* NECESSARY */ |
27 |
#include "rxvt.h" /* NECESSARY */ |
28 |
|
29 |
char * |
30 |
rxvt_wcstombs (const wchar_t *str, int len) |
31 |
{ |
32 |
if (len < 0) len = wcslen (str); |
33 |
|
34 |
mbstate mbs; |
35 |
char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1); |
36 |
|
37 |
char *dst = r; |
38 |
while (len--) |
39 |
{ |
40 |
ssize_t l = wcrtomb (dst, *str++, mbs); |
41 |
|
42 |
if (l < 0) |
43 |
*dst++ = '?'; |
44 |
else |
45 |
dst += l; |
46 |
} |
47 |
|
48 |
*dst++ = 0; |
49 |
|
50 |
return (char *)rxvt_realloc (r, dst - r); |
51 |
} |
52 |
|
53 |
wchar_t * |
54 |
rxvt_mbstowcs (const char *str, int len) |
55 |
{ |
56 |
if (len < 0) len = strlen (str); |
57 |
|
58 |
wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)); |
59 |
|
60 |
if ((ssize_t)mbstowcs (r, str, len + 1) < 0) |
61 |
*r = 0; |
62 |
|
63 |
return r; |
64 |
} |
65 |
|
66 |
char * |
67 |
rxvt_wcstoutf8 (const wchar_t *str, int len) |
68 |
{ |
69 |
if (len < 0) len = wcslen (str); |
70 |
|
71 |
char *r = (char *)rxvt_malloc (len * 4 + 1); |
72 |
char *p = r; |
73 |
|
74 |
while (len--) |
75 |
{ |
76 |
unicode_t w = *str++ & UNICODE_MASK; |
77 |
|
78 |
if (w < 0x000080) |
79 |
*p++ = w; |
80 |
else if (w < 0x000800) |
81 |
*p++ = 0xc0 | ( w >> 6), |
82 |
*p++ = 0x80 | ( w & 0x3f); |
83 |
else if (w < 0x010000) |
84 |
*p++ = 0xe0 | ( w >> 12 ), |
85 |
*p++ = 0x80 | ((w >> 6) & 0x3f), |
86 |
*p++ = 0x80 | ( w & 0x3f); |
87 |
else if (w < 0x110000) |
88 |
*p++ = 0xf0 | ( w >> 18), |
89 |
*p++ = 0x80 | ((w >> 12) & 0x3f), |
90 |
*p++ = 0x80 | ((w >> 6) & 0x3f), |
91 |
*p++ = 0x80 | ( w & 0x3f); |
92 |
else |
93 |
*p++ = '?'; |
94 |
} |
95 |
|
96 |
*p++ = 0; |
97 |
|
98 |
return (char *)rxvt_realloc (r, p - r); |
99 |
} |
100 |
|
101 |
wchar_t * |
102 |
rxvt_utf8towcs (const char *str, int len) |
103 |
{ |
104 |
if (len < 0) len = strlen (str); |
105 |
|
106 |
wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)), |
107 |
*p = r; |
108 |
|
109 |
unsigned char *s = (unsigned char *)str, |
110 |
*e = s + len; |
111 |
|
112 |
for (;;) |
113 |
{ |
114 |
len = e - s; |
115 |
|
116 |
if (len == 0) |
117 |
break; |
118 |
else if (s[0] < 0x80) |
119 |
*p++ = *s++; |
120 |
else if (len >= 2 |
121 |
&& s[0] >= 0xc2 && s[0] <= 0xdf |
122 |
&& (s[1] & 0xc0) == 0x80) |
123 |
{ |
124 |
*p++ = ((s[0] & 0x1f) << 6) |
125 |
| (s[1] & 0x3f); |
126 |
s += 2; |
127 |
} |
128 |
else if (len >= 3 |
129 |
&& ( (s[0] == 0xe0 && s[1] >= 0xa0 && s[1] <= 0xbf) |
130 |
|| (s[0] >= 0xe1 && s[0] <= 0xec && s[1] >= 0x80 && s[1] <= 0xbf) |
131 |
|| (s[0] == 0xed && s[1] >= 0x80 && s[1] <= 0x9f) |
132 |
|| (s[0] >= 0xee && s[0] <= 0xef && s[1] >= 0x80 && s[1] <= 0xbf) |
133 |
) |
134 |
&& (s[2] & 0xc0) == 0x80) |
135 |
{ |
136 |
*p++ = ((s[0] & 0x0f) << 12) |
137 |
| ((s[1] & 0x3f) << 6) |
138 |
| (s[2] & 0x3f); |
139 |
s += 3; |
140 |
} |
141 |
else if (len >= 4 |
142 |
&& ( (s[0] == 0xf0 && s[1] >= 0x90 && s[1] <= 0xbf) |
143 |
|| (s[0] >= 0xf1 && s[0] <= 0xf3 && s[1] >= 0x80 && s[1] <= 0xbf) |
144 |
|| (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f) |
145 |
) |
146 |
&& (s[2] & 0xc0) == 0x80 |
147 |
&& (s[3] & 0xc0) == 0x80) |
148 |
{ |
149 |
*p++ = ((s[0] & 0x07) << 18) |
150 |
| ((s[1] & 0x3f) << 12) |
151 |
| ((s[2] & 0x3f) << 6) |
152 |
| (s[3] & 0x3f); |
153 |
s += 4; |
154 |
} |
155 |
else |
156 |
{ |
157 |
*p++ = 0xfffd; |
158 |
s++; |
159 |
} |
160 |
} |
161 |
|
162 |
*p = 0; |
163 |
|
164 |
return r; |
165 |
} |
166 |
|
167 |
char * |
168 |
rxvt_strdup (const char *str) |
169 |
{ |
170 |
return str ? strdup (str) : 0; |
171 |
} |
172 |
|
173 |
char * |
174 |
rxvt_r_basename (const char *str) |
175 |
{ |
176 |
char *base = strrchr (str, '/'); |
177 |
|
178 |
return (char *) (base ? base + 1 : str); |
179 |
} |
180 |
|
181 |
/* |
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* Print an error message |
183 |
*/ |
184 |
void |
185 |
rxvt_vlog (const char *fmt, va_list arg_ptr) |
186 |
{ |
187 |
char msg[1024]; |
188 |
|
189 |
vsnprintf (msg, sizeof msg, fmt, arg_ptr); |
190 |
|
191 |
if (GET_R && GET_R->log_hook) |
192 |
(*GET_R->log_hook) (msg); |
193 |
else |
194 |
write (STDOUT_FILENO, msg, strlen (msg)); |
195 |
} |
196 |
|
197 |
void |
198 |
rxvt_log (const char *fmt,...) |
199 |
{ |
200 |
va_list arg_ptr; |
201 |
|
202 |
va_start (arg_ptr, fmt); |
203 |
rxvt_vlog (fmt, arg_ptr); |
204 |
va_end (arg_ptr); |
205 |
} |
206 |
|
207 |
/* |
208 |
* Print an error message |
209 |
*/ |
210 |
void |
211 |
rxvt_warn (const char *fmt,...) |
212 |
{ |
213 |
va_list arg_ptr; |
214 |
|
215 |
rxvt_log ("%s: ", RESNAME); |
216 |
|
217 |
va_start (arg_ptr, fmt); |
218 |
rxvt_vlog (fmt, arg_ptr); |
219 |
va_end (arg_ptr); |
220 |
} |
221 |
|
222 |
void |
223 |
rxvt_fatal (const char *fmt,...) |
224 |
{ |
225 |
va_list arg_ptr; |
226 |
|
227 |
rxvt_log ("%s: ", RESNAME); |
228 |
|
229 |
va_start (arg_ptr, fmt); |
230 |
rxvt_vlog (fmt, arg_ptr); |
231 |
va_end (arg_ptr); |
232 |
|
233 |
rxvt_exit_failure (); |
234 |
} |
235 |
|
236 |
class rxvt_failure_exception rxvt_failure_exception; |
237 |
|
238 |
void |
239 |
rxvt_exit_failure () |
240 |
{ |
241 |
throw (rxvt_failure_exception); |
242 |
} |
243 |
|
244 |
/* |
245 |
* check that the first characters of S1 match S2 |
246 |
* |
247 |
* No Match |
248 |
* return: 0 |
249 |
* Match |
250 |
* return: strlen (S2) |
251 |
*/ |
252 |
int |
253 |
rxvt_Str_match (const char *s1, const char *s2) |
254 |
{ |
255 |
int n = strlen (s2); |
256 |
|
257 |
return ((strncmp (s1, s2, n) == 0) ? n : 0); |
258 |
} |
259 |
|
260 |
const char * |
261 |
rxvt_Str_skip_space (const char *str) |
262 |
{ |
263 |
if (str) |
264 |
while (*str && isspace (*str)) |
265 |
str++; |
266 |
|
267 |
return str; |
268 |
} |
269 |
|
270 |
/* |
271 |
* remove leading/trailing space and strip-off leading/trailing quotes. |
272 |
* in place. |
273 |
*/ |
274 |
char * |
275 |
rxvt_Str_trim (char *str) |
276 |
{ |
277 |
char *r, *s; |
278 |
|
279 |
if (!str || !*str) /* shortcut */ |
280 |
return str; |
281 |
|
282 |
/* skip leading spaces */ |
283 |
for (s = str; *s && isspace (*s); s++) ; |
284 |
|
285 |
/* goto end of string */ |
286 |
r = s + strlen (s) - 1; |
287 |
|
288 |
/* dump return and other trailing whitespace */ |
289 |
while (r > s && isspace (*r)) |
290 |
r--; |
291 |
|
292 |
#if 0 |
293 |
/* skip matching leading/trailing quotes */ |
294 |
if (*s == '"' && *r == '"' && n > 1) |
295 |
{ |
296 |
s++; |
297 |
n -= 2; |
298 |
} |
299 |
#endif |
300 |
|
301 |
memmove (str, s, r + 1 - s); |
302 |
str[r + 1 - s] = 0; |
303 |
|
304 |
return str; |
305 |
} |
306 |
|
307 |
/* |
308 |
* in-place interpretation of string: |
309 |
* |
310 |
* backslash-escaped: "\a\b\E\e\n\r\t", "\octal" |
311 |
* Ctrl chars: ^@ .. ^_, ^? |
312 |
* |
313 |
* Emacs-style: "M-" prefix |
314 |
* |
315 |
* Also, |
316 |
* "M-x" prefixed strings, append "\r" if needed |
317 |
* "\E]" prefixed strings (XTerm escape sequence) append ST if needed |
318 |
* |
319 |
* returns the converted string length |
320 |
*/ |
321 |
int |
322 |
rxvt_Str_escaped (char *str) |
323 |
{ |
324 |
char ch, *s, *d; |
325 |
int i, num, append = 0; |
326 |
|
327 |
if (!str || !*str) |
328 |
return 0; |
329 |
|
330 |
d = s = str; |
331 |
|
332 |
if (*s == 'M' && s[1] == '-') |
333 |
{ |
334 |
/* Emacs convenience, replace leading `M-..' with `\E..' */ |
335 |
*d++ = C0_ESC; |
336 |
s += 2; |
337 |
if (toupper (*s) == 'X') |
338 |
/* append carriage-return for `M-xcommand' */ |
339 |
for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ; |
340 |
} |
341 |
for (; (ch = *s++);) |
342 |
{ |
343 |
if (ch == '\\') |
344 |
{ |
345 |
ch = *s++; |
346 |
if (ch >= '0' && ch <= '7') |
347 |
{ /* octal */ |
348 |
num = ch - '0'; |
349 |
for (i = 0; i < 2; i++, s++) |
350 |
{ |
351 |
ch = *s; |
352 |
if (ch < '0' || ch > '7') |
353 |
break; |
354 |
num = num * 8 + ch - '0'; |
355 |
} |
356 |
ch = (char)num; |
357 |
} |
358 |
else if (ch == 'a') |
359 |
ch = C0_BEL; /* bell */ |
360 |
else if (ch == 'b') |
361 |
ch = C0_BS; /* backspace */ |
362 |
else if (ch == 'E' || ch == 'e') |
363 |
ch = C0_ESC; /* escape */ |
364 |
else if (ch == 'n') |
365 |
ch = '\n'; /* newline */ |
366 |
else if (ch == 'r') |
367 |
ch = '\r'; /* carriage-return */ |
368 |
else if (ch == 't') |
369 |
ch = C0_HT; /* tab */ |
370 |
} |
371 |
else if (ch == '^') |
372 |
{ |
373 |
ch = *s++; |
374 |
ch = toupper (ch); |
375 |
ch = (ch == '?' ? 127 : (ch - '@')); |
376 |
} |
377 |
*d++ = ch; |
378 |
} |
379 |
|
380 |
/* ESC] is an XTerm escape sequence, must be terminated */ |
381 |
if (*str == '\0' && str[1] == C0_ESC && str[2] == ']') |
382 |
append = CHAR_ST; |
383 |
|
384 |
/* add trailing character as required */ |
385 |
if (append && d[-1] != append) |
386 |
*d++ = append; |
387 |
*d = '\0'; |
388 |
|
389 |
return (d - str); |
390 |
} |
391 |
|
392 |
/* |
393 |
* Split a comma-separated string into an array, stripping leading and |
394 |
* trailing spaces from each entry. Empty strings are properly returned |
395 |
* Caller should free each entry and array when done |
396 |
*/ |
397 |
char ** |
398 |
rxvt_splitcommastring (const char *cs) |
399 |
{ |
400 |
int l, n, p; |
401 |
const char *s, *t; |
402 |
char **ret; |
403 |
|
404 |
if ((s = cs) == NULL) |
405 |
s = ""; |
406 |
|
407 |
for (n = 1, t = s; *t; t++) |
408 |
if (*t == ',') |
409 |
n++; |
410 |
|
411 |
ret = (char **)malloc ((n + 1) * sizeof (char *)); |
412 |
ret[n] = NULL; |
413 |
|
414 |
for (l = 0, t = s; l < n; l++) |
415 |
{ |
416 |
for ( ; *t && *t != ','; t++) ; |
417 |
p = t - s; |
418 |
ret[l] = (char *)malloc (p + 1); |
419 |
strncpy (ret[l], s, p); |
420 |
ret[l][p] = '\0'; |
421 |
rxvt_Str_trim (ret[l]); |
422 |
s = ++t; |
423 |
} |
424 |
|
425 |
return ret; |
426 |
} |
427 |
|
428 |
void |
429 |
rxvt_freecommastring (char **cs) |
430 |
{ |
431 |
for (int i = 0; cs[i]; ++i) |
432 |
free (cs[i]); |
433 |
|
434 |
free (cs); |
435 |
} |
436 |
|
437 |
/*----------------------------------------------------------------------* |
438 |
* file searching |
439 |
*/ |
440 |
|
441 |
/* #define DEBUG_SEARCH_PATH */ |
442 |
|
443 |
#if defined (XPM_BACKGROUND) || (MENUBAR_MAX) |
444 |
/* |
445 |
* search for FILE in the current working directory, and within the |
446 |
* colon-delimited PATHLIST, adding the file extension EXT if required. |
447 |
* |
448 |
* FILE is either semi-colon or zero terminated |
449 |
*/ |
450 |
char * |
451 |
rxvt_File_search_path (const char *pathlist, const char *file, const char *ext) |
452 |
{ |
453 |
int maxpath, len; |
454 |
const char *p, *path; |
455 |
char name[256]; |
456 |
|
457 |
if (!access (file, R_OK)) /* found (plain name) in current directory */ |
458 |
return strdup (file); |
459 |
|
460 |
/* semi-colon delimited */ |
461 |
if ((p = strchr (file, ';'))) |
462 |
len = (p - file); |
463 |
else |
464 |
len = strlen (file); |
465 |
|
466 |
#ifdef DEBUG_SEARCH_PATH |
467 |
getcwd (name, sizeof (name)); |
468 |
fprintf (stderr, "pwd: \"%s\"\n", name); |
469 |
fprintf (stderr, "find: \"%.*s\"\n", len, file); |
470 |
#endif |
471 |
|
472 |
/* leave room for an extra '/' and trailing '\0' */ |
473 |
maxpath = sizeof (name) - (len + (ext ? strlen (ext) : 0) + 2); |
474 |
if (maxpath <= 0) |
475 |
return NULL; |
476 |
|
477 |
/* check if we can find it now */ |
478 |
strncpy (name, file, len); |
479 |
name[len] = '\0'; |
480 |
|
481 |
if (!access (name, R_OK)) |
482 |
return strdup (name); |
483 |
if (ext) |
484 |
{ |
485 |
strcat (name, ext); |
486 |
if (!access (name, R_OK)) |
487 |
return strdup (name); |
488 |
} |
489 |
for (path = pathlist; path != NULL && *path != '\0'; path = p) |
490 |
{ |
491 |
int n; |
492 |
|
493 |
/* colon delimited */ |
494 |
if ((p = strchr (path, ':')) == NULL) |
495 |
p = strchr (path, '\0'); |
496 |
|
497 |
n = (p - path); |
498 |
if (*p != '\0') |
499 |
p++; |
500 |
|
501 |
if (n > 0 && n <= maxpath) |
502 |
{ |
503 |
strncpy (name, path, n); |
504 |
if (name[n - 1] != '/') |
505 |
name[n++] = '/'; |
506 |
name[n] = '\0'; |
507 |
strncat (name, file, len); |
508 |
|
509 |
if (!access (name, R_OK)) |
510 |
return strdup (name); |
511 |
if (ext) |
512 |
{ |
513 |
strcat (name, ext); |
514 |
if (!access (name, R_OK)) |
515 |
return strdup (name); |
516 |
} |
517 |
} |
518 |
} |
519 |
return NULL; |
520 |
} |
521 |
|
522 |
char * |
523 |
rxvt_File_find (const char *file, const char *ext, const char *path) |
524 |
{ |
525 |
char *f; |
526 |
|
527 |
if (file == NULL || *file == '\0') |
528 |
return NULL; |
529 |
|
530 |
f = rxvt_File_search_path (path, file, ext); |
531 |
|
532 |
#ifdef DEBUG_SEARCH_PATH |
533 |
if (f) |
534 |
fprintf (stderr, "found: \"%s\"\n", f); |
535 |
#endif |
536 |
|
537 |
return f; |
538 |
} |
539 |
#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */ |
540 |
|
541 |
/*----------------------------------------------------------------------* |
542 |
* miscellaneous drawing routines |
543 |
*/ |
544 |
|
545 |
/* |
546 |
* Draw top/left and bottom/right border shadows around windows |
547 |
*/ |
548 |
#if defined(RXVT_SCROLLBAR) || defined(MENUBAR) |
549 |
void |
550 |
rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) |
551 |
{ |
552 |
int shadow; |
553 |
|
554 |
shadow = (w == 0 || h == 0) ? 1 : MENU_SHADOW; |
555 |
w += x - 1; |
556 |
h += y - 1; |
557 |
for (; shadow-- > 0; x++, y++, w--, h--) |
558 |
{ |
559 |
XDrawLine (display, win, topShadow, x, y, w, y); |
560 |
XDrawLine (display, win, topShadow, x, y, x, h); |
561 |
XDrawLine (display, win, botShadow, w, h, w, y + 1); |
562 |
XDrawLine (display, win, botShadow, w, h, x + 1, h); |
563 |
} |
564 |
} |
565 |
#endif |
566 |
|
567 |
/* button shapes */ |
568 |
#ifdef MENUBAR |
569 |
void |
570 |
rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) |
571 |
{ |
572 |
switch (type) |
573 |
{ |
574 |
case 'r': /* right triangle */ |
575 |
XDrawLine (display, win, topShadow, x, y, x, y + w); |
576 |
XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2); |
577 |
XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2); |
578 |
break; |
579 |
|
580 |
case 'l': /* left triangle */ |
581 |
XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
582 |
XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2); |
583 |
XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y); |
584 |
break; |
585 |
|
586 |
case 'd': /* down triangle */ |
587 |
XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w); |
588 |
XDrawLine (display, win, topShadow, x, y, x + w, y); |
589 |
XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w); |
590 |
break; |
591 |
|
592 |
case 'u': /* up triangle */ |
593 |
XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y); |
594 |
XDrawLine (display, win, botShadow, x + w, y + w, x, y + w); |
595 |
XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y); |
596 |
break; |
597 |
#if 0 |
598 |
case 's': /* square */ |
599 |
XDrawLine (display, win, topShadow, x + w, y, x, y); |
600 |
XDrawLine (display, win, topShadow, x, y, x, y + w); |
601 |
XDrawLine (display, win, botShadow, x, y + w, x + w, y + w); |
602 |
XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
603 |
break; |
604 |
#endif |
605 |
|
606 |
} |
607 |
} |
608 |
#endif |
609 |
|
610 |
// should not be used in interactive programs, for obvious reasons |
611 |
void rxvt_usleep (int usecs) |
612 |
{ |
613 |
#if HAVE_NANOSLEEP |
614 |
struct timespec ts; |
615 |
|
616 |
ts.tv_sec = 0; |
617 |
ts.tv_nsec = usecs * 1000; |
618 |
nanosleep (&ts, NULL); |
619 |
#else |
620 |
/* use select for timing */ |
621 |
struct timeval tv; |
622 |
|
623 |
tv.tv_sec = 0; |
624 |
tv.tv_usec = usecs; |
625 |
select (0, NULL, NULL, NULL, &tv); |
626 |
#endif |
627 |
} |
628 |
|
629 |
/*----------------------- end-of-file (C source) -----------------------*/ |
630 |
|