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/*--------------------------------*-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 |
if (l < 0) |
42 |
*dst++ = '?'; |
43 |
else |
44 |
dst += l; |
45 |
} |
46 |
|
47 |
*dst++ = 0; |
48 |
|
49 |
return (char *)rxvt_realloc (r, dst - r); |
50 |
} |
51 |
|
52 |
wchar_t * |
53 |
rxvt_mbstowcs (const char *str, int len) |
54 |
{ |
55 |
if (len < 0) len = strlen (str); |
56 |
|
57 |
wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)); |
58 |
|
59 |
if ((ssize_t)mbstowcs (r, str, len + 1) < 0) |
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*r = 0; |
61 |
|
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return r; |
63 |
} |
64 |
|
65 |
char * |
66 |
rxvt_wcstoutf8 (const wchar_t *str, int len) |
67 |
{ |
68 |
if (len < 0) len = wcslen (str); |
69 |
|
70 |
char *r = (char *)rxvt_malloc (len * 4 + 1); |
71 |
char *p = r; |
72 |
|
73 |
while (len--) |
74 |
{ |
75 |
unicode_t w = *str++ & UNICODE_MASK; |
76 |
|
77 |
if (w < 0x000080) |
78 |
*p++ = w; |
79 |
else if (w < 0x000800) |
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*p++ = 0xc0 | ( w >> 6), |
81 |
*p++ = 0x80 | ( w & 0x3f); |
82 |
else if (w < 0x010000) |
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*p++ = 0xe0 | ( w >> 12 ), |
84 |
*p++ = 0x80 | ((w >> 6) & 0x3f), |
85 |
*p++ = 0x80 | ( w & 0x3f); |
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else if (w < 0x110000) |
87 |
*p++ = 0xf0 | ( w >> 18), |
88 |
*p++ = 0x80 | ((w >> 12) & 0x3f), |
89 |
*p++ = 0x80 | ((w >> 6) & 0x3f), |
90 |
*p++ = 0x80 | ( w & 0x3f); |
91 |
else |
92 |
*p++ = '?'; |
93 |
} |
94 |
|
95 |
*p++ = 0; |
96 |
|
97 |
return (char *)rxvt_realloc (r, p - r); |
98 |
} |
99 |
|
100 |
wchar_t * |
101 |
rxvt_utf8towcs (const char *str, int len) |
102 |
{ |
103 |
if (len < 0) len = strlen (str); |
104 |
|
105 |
wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)), |
106 |
*p = r; |
107 |
|
108 |
unsigned char *s = (unsigned char *)str, |
109 |
*e = s + len; |
110 |
|
111 |
for (;;) |
112 |
{ |
113 |
len = e - s; |
114 |
|
115 |
if (len == 0) |
116 |
break; |
117 |
else if (s[0] < 0x80) |
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*p++ = *s++; |
119 |
else if (len >= 2 |
120 |
&& s[0] >= 0xc2 && s[0] <= 0xdf |
121 |
&& (s[1] & 0xc0) == 0x80) |
122 |
{ |
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*p++ = ((s[0] & 0x1f) << 6) |
124 |
| (s[1] & 0x3f); |
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s += 2; |
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} |
127 |
else if (len >= 3 |
128 |
&& ( (s[0] == 0xe0 && s[1] >= 0xa0 && s[1] <= 0xbf) |
129 |
|| (s[0] >= 0xe1 && s[0] <= 0xec && s[1] >= 0x80 && s[1] <= 0xbf) |
130 |
|| (s[0] == 0xed && s[1] >= 0x80 && s[1] <= 0x9f) |
131 |
|| (s[0] >= 0xee && s[0] <= 0xef && s[1] >= 0x80 && s[1] <= 0xbf) |
132 |
) |
133 |
&& (s[2] & 0xc0) == 0x80) |
134 |
{ |
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*p++ = ((s[0] & 0x0f) << 12) |
136 |
| ((s[1] & 0x3f) << 6) |
137 |
| (s[2] & 0x3f); |
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s += 3; |
139 |
} |
140 |
else if (len >= 4 |
141 |
&& ( (s[0] == 0xf0 && s[1] >= 0x90 && s[1] <= 0xbf) |
142 |
|| (s[0] >= 0xf1 && s[0] <= 0xf3 && s[1] >= 0x80 && s[1] <= 0xbf) |
143 |
|| (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f) |
144 |
) |
145 |
&& (s[2] & 0xc0) == 0x80 |
146 |
&& (s[3] & 0xc0) == 0x80) |
147 |
{ |
148 |
*p++ = ((s[0] & 0x07) << 18) |
149 |
| ((s[1] & 0x3f) << 12) |
150 |
| ((s[2] & 0x3f) << 6) |
151 |
| (s[3] & 0x3f); |
152 |
s += 4; |
153 |
} |
154 |
else |
155 |
{ |
156 |
*p++ = 0xfffd; |
157 |
s++; |
158 |
} |
159 |
} |
160 |
|
161 |
*p = 0; |
162 |
|
163 |
return r; |
164 |
} |
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|
166 |
char * |
167 |
rxvt_strdup (const char *str) |
168 |
{ |
169 |
return str ? strdup (str) : 0; |
170 |
} |
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|
172 |
char * |
173 |
rxvt_r_basename (const char *str) |
174 |
{ |
175 |
char *base = strrchr (str, '/'); |
176 |
|
177 |
return (char *) (base ? base + 1 : str); |
178 |
} |
179 |
|
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/* |
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* Print an error message |
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*/ |
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void |
184 |
rxvt_vlog (const char *fmt, va_list arg_ptr) |
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{ |
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char msg[1024]; |
187 |
|
188 |
vsnprintf (msg, sizeof msg, fmt, arg_ptr); |
189 |
|
190 |
if (GET_R && GET_R->log_hook) |
191 |
(*GET_R->log_hook) (msg); |
192 |
else |
193 |
write (STDOUT_FILENO, msg, strlen (msg)); |
194 |
} |
195 |
|
196 |
void |
197 |
rxvt_log (const char *fmt,...) |
198 |
{ |
199 |
va_list arg_ptr; |
200 |
|
201 |
va_start (arg_ptr, fmt); |
202 |
rxvt_vlog (fmt, arg_ptr); |
203 |
va_end (arg_ptr); |
204 |
} |
205 |
|
206 |
/* |
207 |
* Print an error message |
208 |
*/ |
209 |
void |
210 |
rxvt_warn (const char *fmt,...) |
211 |
{ |
212 |
va_list arg_ptr; |
213 |
|
214 |
rxvt_log ("%s: ", RESNAME); |
215 |
|
216 |
va_start (arg_ptr, fmt); |
217 |
rxvt_vlog (fmt, arg_ptr); |
218 |
va_end (arg_ptr); |
219 |
} |
220 |
|
221 |
void |
222 |
rxvt_fatal (const char *fmt,...) |
223 |
{ |
224 |
va_list arg_ptr; |
225 |
|
226 |
rxvt_log ("%s: ", RESNAME); |
227 |
|
228 |
va_start (arg_ptr, fmt); |
229 |
rxvt_vlog (fmt, arg_ptr); |
230 |
va_end (arg_ptr); |
231 |
|
232 |
rxvt_exit_failure (); |
233 |
} |
234 |
|
235 |
class rxvt_failure_exception rxvt_failure_exception; |
236 |
|
237 |
void |
238 |
rxvt_exit_failure () |
239 |
{ |
240 |
throw (rxvt_failure_exception); |
241 |
} |
242 |
|
243 |
/* |
244 |
* check that the first characters of S1 match S2 |
245 |
* |
246 |
* No Match |
247 |
* return: 0 |
248 |
* Match |
249 |
* return: strlen (S2) |
250 |
*/ |
251 |
int |
252 |
rxvt_Str_match (const char *s1, const char *s2) |
253 |
{ |
254 |
int n = strlen (s2); |
255 |
|
256 |
return ((strncmp (s1, s2, n) == 0) ? n : 0); |
257 |
} |
258 |
|
259 |
const char * |
260 |
rxvt_Str_skip_space (const char *str) |
261 |
{ |
262 |
if (str) |
263 |
while (*str && isspace (*str)) |
264 |
str++; |
265 |
|
266 |
return str; |
267 |
} |
268 |
|
269 |
/* |
270 |
* remove leading/trailing space and strip-off leading/trailing quotes. |
271 |
* in place. |
272 |
*/ |
273 |
char * |
274 |
rxvt_Str_trim (char *str) |
275 |
{ |
276 |
char *r, *s; |
277 |
|
278 |
if (!str || !*str) /* shortcut */ |
279 |
return str; |
280 |
|
281 |
/* skip leading spaces */ |
282 |
for (s = str; *s && isspace (*s); s++) ; |
283 |
|
284 |
/* goto end of string */ |
285 |
r = s + strlen (s) - 1; |
286 |
|
287 |
/* dump return and other trailing whitespace */ |
288 |
while (r > s && isspace (*r)) |
289 |
r--; |
290 |
|
291 |
#if 0 |
292 |
/* skip matching leading/trailing quotes */ |
293 |
if (*s == '"' && *r == '"' && n > 1) |
294 |
{ |
295 |
s++; |
296 |
n -= 2; |
297 |
} |
298 |
#endif |
299 |
|
300 |
memmove (str, s, r + 1 - s); |
301 |
str[r + 1 - s] = 0; |
302 |
|
303 |
return str; |
304 |
} |
305 |
|
306 |
/* |
307 |
* in-place interpretation of string: |
308 |
* |
309 |
* backslash-escaped: "\a\b\E\e\n\r\t", "\octal" |
310 |
* Ctrl chars: ^@ .. ^_, ^? |
311 |
* |
312 |
* Emacs-style: "M-" prefix |
313 |
* |
314 |
* Also, |
315 |
* "M-x" prefixed strings, append "\r" if needed |
316 |
* "\E]" prefixed strings (XTerm escape sequence) append ST if needed |
317 |
* |
318 |
* returns the converted string length |
319 |
*/ |
320 |
int |
321 |
rxvt_Str_escaped (char *str) |
322 |
{ |
323 |
char ch, *s, *d; |
324 |
int i, num, append = 0; |
325 |
|
326 |
if (!str || !*str) |
327 |
return 0; |
328 |
|
329 |
d = s = str; |
330 |
|
331 |
if (*s == 'M' && s[1] == '-') |
332 |
{ |
333 |
/* Emacs convenience, replace leading `M-..' with `\E..' */ |
334 |
*d++ = C0_ESC; |
335 |
s += 2; |
336 |
if (toupper (*s) == 'X') |
337 |
/* append carriage-return for `M-xcommand' */ |
338 |
for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ; |
339 |
} |
340 |
for (; (ch = *s++);) |
341 |
{ |
342 |
if (ch == '\\') |
343 |
{ |
344 |
ch = *s++; |
345 |
if (ch >= '0' && ch <= '7') |
346 |
{ /* octal */ |
347 |
num = ch - '0'; |
348 |
for (i = 0; i < 2; i++, s++) |
349 |
{ |
350 |
ch = *s; |
351 |
if (ch < '0' || ch > '7') |
352 |
break; |
353 |
num = num * 8 + ch - '0'; |
354 |
} |
355 |
ch = (char)num; |
356 |
} |
357 |
else if (ch == 'a') |
358 |
ch = C0_BEL; /* bell */ |
359 |
else if (ch == 'b') |
360 |
ch = C0_BS; /* backspace */ |
361 |
else if (ch == 'E' || ch == 'e') |
362 |
ch = C0_ESC; /* escape */ |
363 |
else if (ch == 'n') |
364 |
ch = '\n'; /* newline */ |
365 |
else if (ch == 'r') |
366 |
ch = '\r'; /* carriage-return */ |
367 |
else if (ch == 't') |
368 |
ch = C0_HT; /* tab */ |
369 |
} |
370 |
else if (ch == '^') |
371 |
{ |
372 |
ch = *s++; |
373 |
ch = toupper (ch); |
374 |
ch = (ch == '?' ? 127 : (ch - '@')); |
375 |
} |
376 |
*d++ = ch; |
377 |
} |
378 |
|
379 |
/* ESC] is an XTerm escape sequence, must be terminated */ |
380 |
if (*str == '\0' && str[1] == C0_ESC && str[2] == ']') |
381 |
append = CHAR_ST; |
382 |
|
383 |
/* add trailing character as required */ |
384 |
if (append && d[-1] != append) |
385 |
*d++ = append; |
386 |
*d = '\0'; |
387 |
|
388 |
return (d - str); |
389 |
} |
390 |
|
391 |
/* |
392 |
* Split a comma-separated string into an array, stripping leading and |
393 |
* trailing spaces from each entry. Empty strings are properly returned |
394 |
* Caller should free each entry and array when done |
395 |
*/ |
396 |
char ** |
397 |
rxvt_splitcommastring (const char *cs) |
398 |
{ |
399 |
int l, n, p; |
400 |
const char *s, *t; |
401 |
char **ret; |
402 |
|
403 |
if ((s = cs) == NULL) |
404 |
s = ""; |
405 |
|
406 |
for (n = 1, t = s; *t; t++) |
407 |
if (*t == ',') |
408 |
n++; |
409 |
|
410 |
ret = (char **)malloc ((n + 1) * sizeof (char *)); |
411 |
ret[n] = NULL; |
412 |
|
413 |
for (l = 0, t = s; l < n; l++) |
414 |
{ |
415 |
for ( ; *t && *t != ','; t++) ; |
416 |
p = t - s; |
417 |
ret[l] = (char *)malloc (p + 1); |
418 |
strncpy (ret[l], s, p); |
419 |
ret[l][p] = '\0'; |
420 |
rxvt_Str_trim (ret[l]); |
421 |
s = ++t; |
422 |
} |
423 |
|
424 |
return ret; |
425 |
} |
426 |
|
427 |
void |
428 |
rxvt_freecommastring (char **cs) |
429 |
{ |
430 |
for (int i = 0; cs[i]; ++i) |
431 |
free (cs[i]); |
432 |
|
433 |
free (cs); |
434 |
} |
435 |
|
436 |
/*----------------------------------------------------------------------* |
437 |
* file searching |
438 |
*/ |
439 |
|
440 |
/* #define DEBUG_SEARCH_PATH */ |
441 |
|
442 |
#if defined (XPM_BACKGROUND) || (MENUBAR_MAX) |
443 |
/* |
444 |
* search for FILE in the current working directory, and within the |
445 |
* colon-delimited PATHLIST, adding the file extension EXT if required. |
446 |
* |
447 |
* FILE is either semi-colon or zero terminated |
448 |
*/ |
449 |
char * |
450 |
rxvt_File_search_path (const char *pathlist, const char *file, const char *ext) |
451 |
{ |
452 |
int maxpath, len; |
453 |
const char *p, *path; |
454 |
char name[256]; |
455 |
|
456 |
if (!access (file, R_OK)) /* found (plain name) in current directory */ |
457 |
return strdup (file); |
458 |
|
459 |
/* semi-colon delimited */ |
460 |
if ((p = strchr (file, ';'))) |
461 |
len = (p - file); |
462 |
else |
463 |
len = strlen (file); |
464 |
|
465 |
#ifdef DEBUG_SEARCH_PATH |
466 |
getcwd (name, sizeof (name)); |
467 |
fprintf (stderr, "pwd: \"%s\"\n", name); |
468 |
fprintf (stderr, "find: \"%.*s\"\n", len, file); |
469 |
#endif |
470 |
|
471 |
/* leave room for an extra '/' and trailing '\0' */ |
472 |
maxpath = sizeof (name) - (len + (ext ? strlen (ext) : 0) + 2); |
473 |
if (maxpath <= 0) |
474 |
return NULL; |
475 |
|
476 |
/* check if we can find it now */ |
477 |
strncpy (name, file, len); |
478 |
name[len] = '\0'; |
479 |
|
480 |
if (!access (name, R_OK)) |
481 |
return strdup (name); |
482 |
if (ext) |
483 |
{ |
484 |
strcat (name, ext); |
485 |
if (!access (name, R_OK)) |
486 |
return strdup (name); |
487 |
} |
488 |
for (path = pathlist; path != NULL && *path != '\0'; path = p) |
489 |
{ |
490 |
int n; |
491 |
|
492 |
/* colon delimited */ |
493 |
if ((p = strchr (path, ':')) == NULL) |
494 |
p = strchr (path, '\0'); |
495 |
|
496 |
n = (p - path); |
497 |
if (*p != '\0') |
498 |
p++; |
499 |
|
500 |
if (n > 0 && n <= maxpath) |
501 |
{ |
502 |
strncpy (name, path, n); |
503 |
if (name[n - 1] != '/') |
504 |
name[n++] = '/'; |
505 |
name[n] = '\0'; |
506 |
strncat (name, file, len); |
507 |
|
508 |
if (!access (name, R_OK)) |
509 |
return strdup (name); |
510 |
if (ext) |
511 |
{ |
512 |
strcat (name, ext); |
513 |
if (!access (name, R_OK)) |
514 |
return strdup (name); |
515 |
} |
516 |
} |
517 |
} |
518 |
return NULL; |
519 |
} |
520 |
|
521 |
char * |
522 |
rxvt_File_find (const char *file, const char *ext, const char *path) |
523 |
{ |
524 |
char *f; |
525 |
|
526 |
if (file == NULL || *file == '\0') |
527 |
return NULL; |
528 |
|
529 |
/* search environment variables here too */ |
530 |
if ((f = rxvt_File_search_path (path, file, ext)) == NULL) |
531 |
#ifdef PATH_ENV |
532 |
if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL) |
533 |
#endif |
534 |
f = rxvt_File_search_path (getenv ("PATH"), file, ext); |
535 |
|
536 |
#ifdef DEBUG_SEARCH_PATH |
537 |
if (f) |
538 |
fprintf (stderr, "found: \"%s\"\n", f); |
539 |
#endif |
540 |
|
541 |
return f; |
542 |
} |
543 |
#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */ |
544 |
|
545 |
/*----------------------------------------------------------------------* |
546 |
* miscellaneous drawing routines |
547 |
*/ |
548 |
|
549 |
/* |
550 |
* Draw top/left and bottom/right border shadows around windows |
551 |
*/ |
552 |
#if defined(RXVT_SCROLLBAR) || defined(MENUBAR) |
553 |
void |
554 |
rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) |
555 |
{ |
556 |
int shadow; |
557 |
|
558 |
shadow = (w == 0 || h == 0) ? 1 : SHADOW; |
559 |
w += x - 1; |
560 |
h += y - 1; |
561 |
for (; shadow-- > 0; x++, y++, w--, h--) |
562 |
{ |
563 |
XDrawLine (display, win, topShadow, x, y, w, y); |
564 |
XDrawLine (display, win, topShadow, x, y, x, h); |
565 |
XDrawLine (display, win, botShadow, w, h, w, y + 1); |
566 |
XDrawLine (display, win, botShadow, w, h, x + 1, h); |
567 |
} |
568 |
} |
569 |
#endif |
570 |
|
571 |
/* button shapes */ |
572 |
#ifdef MENUBAR |
573 |
void |
574 |
rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) |
575 |
{ |
576 |
switch (type) |
577 |
{ |
578 |
case 'r': /* right triangle */ |
579 |
XDrawLine (display, win, topShadow, x, y, x, y + w); |
580 |
XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2); |
581 |
XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2); |
582 |
break; |
583 |
|
584 |
case 'l': /* left triangle */ |
585 |
XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
586 |
XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2); |
587 |
XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y); |
588 |
break; |
589 |
|
590 |
case 'd': /* down triangle */ |
591 |
XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w); |
592 |
XDrawLine (display, win, topShadow, x, y, x + w, y); |
593 |
XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w); |
594 |
break; |
595 |
|
596 |
case 'u': /* up triangle */ |
597 |
XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y); |
598 |
XDrawLine (display, win, botShadow, x + w, y + w, x, y + w); |
599 |
XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y); |
600 |
break; |
601 |
#if 0 |
602 |
case 's': /* square */ |
603 |
XDrawLine (display, win, topShadow, x + w, y, x, y); |
604 |
XDrawLine (display, win, topShadow, x, y, x, y + w); |
605 |
XDrawLine (display, win, botShadow, x, y + w, x + w, y + w); |
606 |
XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
607 |
break; |
608 |
#endif |
609 |
|
610 |
} |
611 |
} |
612 |
#endif |
613 |
|
614 |
// should not be used in interactive programs, for obvious reasons |
615 |
void rxvt_usleep (int usecs) |
616 |
{ |
617 |
#if HAVE_NANOSLEEP |
618 |
struct timespec ts; |
619 |
|
620 |
ts.tv_sec = 0; |
621 |
ts.tv_nsec = usecs * 1000; |
622 |
nanosleep (&ts, NULL); |
623 |
#else |
624 |
/* use select for timing */ |
625 |
struct timeval tv; |
626 |
|
627 |
tv.tv_sec = 0; |
628 |
tv.tv_usec = usecs; |
629 |
select (0, NULL, NULL, NULL, &tv); |
630 |
#endif |
631 |
} |
632 |
|
633 |
/*----------------------- end-of-file (C source) -----------------------*/ |
634 |
|