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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.20 by root, Mon Dec 13 06:44:18 2004 UTC vs.
Revision 1.43 by ayin, Mon Aug 27 20:53:16 2007 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*----------------------------------------------------------------------*
2 * File: misc.C 2 * File: misc.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston 6 * Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston
7 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> 7 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
8 * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com> 8 * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com>
9 * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> 9 * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com>
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by 12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or 13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version. 14 * (at your option) any later version.
… …
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *----------------------------------------------------------------------*/ 24 *----------------------------------------------------------------------*/
25 25
26#include "../config.h" /* NECESSARY */ 26#include "../config.h" /* NECESSARY */
27#include "rxvt.h" /* NECESSARY */ 27#include "rxvt.h" /* NECESSARY */
28#include "misc.intpro" /* PROTOS for internal routines */
29 28
30char * 29char *
31rxvt_wcstombs (const wchar_t *str, int len) 30rxvt_wcstombs (const wchar_t *str, int len)
32{ 31{
33 if (len < 0) len = wcslen (str); 32 if (len < 0) len = wcslen (str);
… …
36 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1); 35 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1);
37 36
38 char *dst = r; 37 char *dst = r;
39 while (len--) 38 while (len--)
40 { 39 {
41 int l = wcrtomb (dst, *str++, mbs); 40 ssize_t l = wcrtomb (dst, *str++, mbs);
41
42 if (l < 0) 42 if (l < 0)
43 *dst++ = '?'; 43 *dst++ = '?';
44 else 44 else
45 dst += l; 45 dst += l;
46 } 46 }
47 47
48 *dst++ = 0; 48 *dst++ = 0;
49 49
50 return r; 50 return (char *)rxvt_realloc (r, dst - r);
51} 51}
52 52
53wchar_t * 53wchar_t *
54rxvt_mbstowcs (const char *str, int len) 54rxvt_mbstowcs (const char *str, int len)
55{ 55{
56 if (len < 0) len = strlen (str); 56 if (len < 0) len = strlen (str);
57 57
58 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)); 58 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t));
59 59
60 if (mbstowcs (r, str, len + 1) < 0) 60 if ((ssize_t)mbstowcs (r, str, len + 1) < 0)
61 *r = 0; 61 *r = 0;
62 62
63 return r; 63 return r;
64} 64}
65 65
… …
71 char *r = (char *)rxvt_malloc (len * 4 + 1); 71 char *r = (char *)rxvt_malloc (len * 4 + 1);
72 char *p = r; 72 char *p = r;
73 73
74 while (len--) 74 while (len--)
75 { 75 {
76 unicode_t w = *str++; 76 unicode_t w = *str++ & UNICODE_MASK;
77 77
78 if (w < 0x000080) 78 if (w < 0x000080)
79 *p++ = w; 79 *p++ = w;
80 else if (w < 0x000800) 80 else if (w < 0x000800)
81 *p++ = 0xc0 | ( w >> 6), 81 *p++ = 0xc0 | ( w >> 6),
… …
91 *p++ = 0x80 | ( w & 0x3f); 91 *p++ = 0x80 | ( w & 0x3f);
92 else 92 else
93 *p++ = '?'; 93 *p++ = '?';
94 } 94 }
95 95
96 *p = 0; 96 *p++ = 0;
97 97
98 return r; 98 return (char *)rxvt_realloc (r, p - r);
99} 99}
100 100
101wchar_t * 101wchar_t *
102rxvt_utf8towcs (const char *str, int len) 102rxvt_utf8towcs (const char *str, int len)
103{ 103{
104 if (len < 0) len = strlen (str); 104 if (len < 0) len = strlen (str);
105 105
106 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)); 106 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)),
107 wchar_t *p = r; 107 *p = r;
108 108
109 unsigned char *s = (unsigned char *)str; 109 unsigned char *s = (unsigned char *)str,
110 *e = s + len;
110 111
111 while (len) 112 for (;;)
112 { 113 {
114 len = e - s;
115
116 if (len == 0)
117 break;
113 if (s[0] < 0x80) 118 else if (s[0] < 0x80)
114 {
115 *p++ = *s++; len--; 119 *p++ = *s++;
116 }
117 else if (len > 0 120 else if (len >= 2
118 && s[0] >= 0xc2 && s[0] <= 0xdf 121 && s[0] >= 0xc2 && s[0] <= 0xdf
119 && (s[1] & 0xc0) == 0x80) 122 && (s[1] & 0xc0) == 0x80)
120 { 123 {
121 *p++ = ((s[0] & 0x1f) << 6) 124 *p++ = ((s[0] & 0x1f) << 6)
122 | (s[1] & 0x3f); 125 | (s[1] & 0x3f);
123 s += 2; len -= 2; 126 s += 2;
124 } 127 }
125 else if (len > 1 128 else if (len >= 3
126 && ( (s[0] == 0xe0 && s[1] >= 0xa0 && s[1] <= 0xbf) 129 && ( (s[0] == 0xe0 && s[1] >= 0xa0 && s[1] <= 0xbf)
127 || (s[0] >= 0xe1 && s[0] <= 0xec && s[1] >= 0x80 && s[1] <= 0xbf) 130 || (s[0] >= 0xe1 && s[0] <= 0xec && s[1] >= 0x80 && s[1] <= 0xbf)
128 || (s[0] == 0xed && s[1] >= 0x80 && s[1] <= 0x9f) 131 || (s[0] == 0xed && s[1] >= 0x80 && s[1] <= 0x9f)
129 || (s[0] >= 0xee && s[0] <= 0xef && s[1] >= 0x80 && s[1] <= 0xbf) 132 || (s[0] >= 0xee && s[0] <= 0xef && s[1] >= 0x80 && s[1] <= 0xbf)
130 ) 133 )
131 && (s[2] & 0xc0) == 0x80) 134 && (s[2] & 0xc0) == 0x80)
132 { 135 {
133 *p++ = ((s[0] & 0x0f) << 12) 136 *p++ = ((s[0] & 0x0f) << 12)
134 | ((s[1] & 0x3f) << 6) 137 | ((s[1] & 0x3f) << 6)
135 | (s[2] & 0x3f); 138 | (s[2] & 0x3f);
136 s += 3; len -= 3; 139 s += 3;
137 } 140 }
138 else if (len > 2 141 else if (len >= 4
139 && ( (s[0] == 0xf0 && s[1] >= 0x90 && s[1] <= 0xbf) 142 && ( (s[0] == 0xf0 && s[1] >= 0x90 && s[1] <= 0xbf)
140 || (s[0] >= 0xf1 && s[0] <= 0xf3 && s[1] >= 0x80 && s[1] <= 0xbf) 143 || (s[0] >= 0xf1 && s[0] <= 0xf3 && s[1] >= 0x80 && s[1] <= 0xbf)
141 || (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f) 144 || (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f)
142 ) 145 )
143 && (s[2] & 0xc0) == 0x80 146 && (s[2] & 0xc0) == 0x80
… …
145 { 148 {
146 *p++ = ((s[0] & 0x07) << 18) 149 *p++ = ((s[0] & 0x07) << 18)
147 | ((s[1] & 0x3f) << 12) 150 | ((s[1] & 0x3f) << 12)
148 | ((s[2] & 0x3f) << 6) 151 | ((s[2] & 0x3f) << 6)
149 | (s[3] & 0x3f); 152 | (s[3] & 0x3f);
150 s += 4; len -= 4; 153 s += 4;
151 } 154 }
152 else 155 else
153 { 156 {
154 *p++ = 0xfffd; 157 *p++ = 0xfffd;
155 s++; len--; 158 s++;
156 } 159 }
157 } 160 }
158 161
159 *p = 0; 162 *p = 0;
160 163
161 return r; 164 return r;
162} 165}
163 166
164char * 167char *
165rxvt_strdup (const char *str)
166{
167 return str ? strdup (str) : 0;
168}
169
170/* INTPROTO */
171char *
172rxvt_r_basename (const char *str) 168rxvt_r_basename (const char *str) NOTHROW
173{ 169{
174 char *base = strrchr (str, '/'); 170 char *base = strrchr (str, '/');
175 171
176 return (char *) (base ? base + 1 : str); 172 return (char *) (base ? base + 1 : str);
177} 173}
178 174
179/* 175/*
180 * Print an error message 176 * Print an error message
181 */ 177 */
182/* INTPROTO */
183void 178void
184rxvt_vlog (const char *fmt, va_list arg_ptr) 179rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
185{ 180{
186 char msg[1024]; 181 char msg[1024];
187 182
188 vsnprintf (msg, sizeof msg, fmt, arg_ptr); 183 vsnprintf (msg, sizeof msg, fmt, arg_ptr);
189 184
… …
191 (*GET_R->log_hook) (msg); 186 (*GET_R->log_hook) (msg);
192 else 187 else
193 write (STDOUT_FILENO, msg, strlen (msg)); 188 write (STDOUT_FILENO, msg, strlen (msg));
194} 189}
195 190
196/* INTPROTO */
197void 191void
198rxvt_log (const char *fmt,...) 192rxvt_log (const char *fmt,...) NOTHROW
199{ 193{
200 va_list arg_ptr; 194 va_list arg_ptr;
201 195
202 va_start (arg_ptr, fmt); 196 va_start (arg_ptr, fmt);
203 rxvt_vlog (fmt, arg_ptr); 197 rxvt_vlog (fmt, arg_ptr);
… …
205} 199}
206 200
207/* 201/*
208 * Print an error message 202 * Print an error message
209 */ 203 */
210/* INTPROTO */
211void 204void
212rxvt_warn (const char *fmt,...) 205rxvt_warn (const char *fmt,...) NOTHROW
213{ 206{
214 va_list arg_ptr; 207 va_list arg_ptr;
215 208
216 rxvt_log ("%s: ", RESNAME); 209 rxvt_log ("%s: ", RESNAME);
217 210
218 va_start (arg_ptr, fmt); 211 va_start (arg_ptr, fmt);
219 rxvt_vlog (fmt, arg_ptr); 212 rxvt_vlog (fmt, arg_ptr);
220 va_end (arg_ptr); 213 va_end (arg_ptr);
221} 214}
222 215
223/* INTPROTO */
224void 216void
225rxvt_fatal (const char *fmt,...) 217rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
226{ 218{
227 va_list arg_ptr; 219 va_list arg_ptr;
228 220
229 rxvt_log ("%s: ", RESNAME); 221 rxvt_log ("%s: ", RESNAME);
230 222
… …
233 va_end (arg_ptr); 225 va_end (arg_ptr);
234 226
235 rxvt_exit_failure (); 227 rxvt_exit_failure ();
236} 228}
237 229
230void
231rxvt_exit_failure () THROW ((class rxvt_failure_exception))
232{
238class rxvt_failure_exception rxvt_failure_exception; 233 static class rxvt_failure_exception rxvt_failure_exception;
239
240/* INTPROTO */
241void
242rxvt_exit_failure ()
243{
244 throw (rxvt_failure_exception); 234 throw (rxvt_failure_exception);
245}
246
247/*
248 * check that the first characters of S1 match S2
249 *
250 * No Match
251 * return: 0
252 * Match
253 * return: strlen (S2)
254 */
255/* INTPROTO */
256int
257rxvt_Str_match (const char *s1, const char *s2)
258{
259 int n = strlen (s2);
260
261 return ((strncmp (s1, s2, n) == 0) ? n : 0);
262}
263
264/* INTPROTO */
265const char *
266rxvt_Str_skip_space (const char *str)
267{
268 if (str)
269 while (*str && isspace (*str))
270 str++;
271
272 return str;
273} 235}
274 236
275/* 237/*
276 * remove leading/trailing space and strip-off leading/trailing quotes. 238 * remove leading/trailing space and strip-off leading/trailing quotes.
277 * in place. 239 * in place.
278 */ 240 */
279/* INTPROTO */
280char * 241char *
281rxvt_Str_trim (char *str) 242rxvt_Str_trim (char *str) NOTHROW
282{ 243{
283 char *r, *s; 244 char *r, *s;
284 int n;
285 245
286 if (!str || !*str) /* shortcut */ 246 if (!str || !*str) /* shortcut */
287 return str; 247 return str;
288 248
289 /* skip leading spaces */ 249 /* skip leading spaces */
290 for (s = str; *s && isspace (*s); s++) ; 250 for (s = str; *s && isspace (*s); s++) ;
251
291 /* goto end of string */ 252 /* goto end of string */
292 for (n = 0, r = s; *r++; n++) ; 253 r = s + strlen (s) - 1;
293 r -= 2; 254
294 /* dump return */ 255 /* dump return and other trailing whitespace */
295 if (n > 0 && *r == '\n') 256 while (r > s && isspace (*r))
296 n--, r--; 257 r--;
297 /* backtrack along trailing spaces */ 258
298 for (; n > 0 && isspace (*r); r--, n--) ; 259#if 0
299 /* skip matching leading/trailing quotes */ 260 /* skip matching leading/trailing quotes */
300 if (*s == '"' && *r == '"' && n > 1) 261 if (*s == '"' && *r == '"' && n > 1)
301 { 262 {
302 s++; 263 s++;
303 n -= 2; 264 n -= 2;
304 } 265 }
266#endif
305 267
306 /* copy back over: forwards copy */ 268 memmove (str, s, r + 1 - s);
307 for (r = str; n; n--) 269 str[r + 1 - s] = 0;
308 *r++ = *s++;
309 *r = '\0';
310 270
311 return str; 271 return str;
312} 272}
313 273
314/* 274/*
… …
323 * "M-x" prefixed strings, append "\r" if needed 283 * "M-x" prefixed strings, append "\r" if needed
324 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed 284 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
325 * 285 *
326 * returns the converted string length 286 * returns the converted string length
327 */ 287 */
328/* INTPROTO */
329int 288int
330rxvt_Str_escaped (char *str) 289rxvt_Str_escaped (char *str) NOTHROW
331{ 290{
332 char ch, *s, *d; 291 char ch, *s, *d;
333 int i, num, append = 0; 292 int i, num, append = 0;
334 293
335 if (!str || !*str) 294 if (!str || !*str)
… …
397 return (d - str); 356 return (d - str);
398} 357}
399 358
400/* 359/*
401 * Split a comma-separated string into an array, stripping leading and 360 * Split a comma-separated string into an array, stripping leading and
402 * trailing spaces (and paired quotes) from each entry. Empty strings 361 * trailing spaces from each entry. Empty strings are properly returned
403 * are properly returned
404 * Caller should free each entry and array when done 362 * Caller should free each entry and array when done
405 */ 363 */
406/* INTPROTO */
407char ** 364char **
408rxvt_splitcommastring (const char *cs) 365rxvt_splitcommastring (const char *cs) NOTHROW
409{ 366{
410 int l, n, p; 367 int l, n, p;
411 const char *s, *t; 368 const char *s, *t;
412 char **ret; 369 char **ret;
413 370
… …
415 s = ""; 372 s = "";
416 373
417 for (n = 1, t = s; *t; t++) 374 for (n = 1, t = s; *t; t++)
418 if (*t == ',') 375 if (*t == ',')
419 n++; 376 n++;
377
420 ret = (char **)malloc ((n + 1) * sizeof (char *)); 378 ret = (char **)malloc ((n + 1) * sizeof (char *));
421 ret[n] = NULL; 379 ret[n] = NULL;
422 380
423 for (l = 0, t = s; l < n; l++) 381 for (l = 0, t = s; l < n; l++)
424 { 382 {
… …
428 strncpy (ret[l], s, p); 386 strncpy (ret[l], s, p);
429 ret[l][p] = '\0'; 387 ret[l][p] = '\0';
430 rxvt_Str_trim (ret[l]); 388 rxvt_Str_trim (ret[l]);
431 s = ++t; 389 s = ++t;
432 } 390 }
391
433 return ret; 392 return ret;
434} 393}
435 394
436void 395void
437rxvt_freecommastring (char **cs) 396rxvt_freecommastring (char **cs) NOTHROW
438{ 397{
439 for (int i = 0; cs[i]; ++i) 398 for (int i = 0; cs[i]; ++i)
440 free (cs[i]); 399 free (cs[i]);
441 400
442 free (cs); 401 free (cs);
443} 402}
444 403
445/*----------------------------------------------------------------------*
446 * file searching
447 */
448 404
449/* #define DEBUG_SEARCH_PATH */
450 405
451#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
452/*
453 * search for FILE in the current working directory, and within the
454 * colon-delimited PATHLIST, adding the file extension EXT if required.
455 *
456 * FILE is either semi-colon or zero terminated
457 */
458/* INTPROTO */
459char *
460rxvt_File_search_path (const char *pathlist, const char *file, const char *ext)
461{
462 int maxpath, len;
463 const char *p, *path;
464 char name[256];
465
466 if (!access (file, R_OK)) /* found (plain name) in current directory */
467 return strdup (file);
468
469 /* semi-colon delimited */
470 if ((p = strchr (file, ';')))
471 len = (p - file);
472 else
473 len = strlen (file);
474
475#ifdef DEBUG_SEARCH_PATH
476 getcwd (name, sizeof (name));
477 fprintf (stderr, "pwd: \"%s\"\n", name);
478 fprintf (stderr, "find: \"%.*s\"\n", len, file);
479#endif
480
481 /* leave room for an extra '/' and trailing '\0' */
482 maxpath = sizeof (name) - (len + (ext ? strlen (ext) : 0) + 2);
483 if (maxpath <= 0)
484 return NULL;
485
486 /* check if we can find it now */
487 strncpy (name, file, len);
488 name[len] = '\0';
489
490 if (!access (name, R_OK))
491 return strdup (name);
492 if (ext)
493 {
494 strcat (name, ext);
495 if (!access (name, R_OK))
496 return strdup (name);
497 }
498 for (path = pathlist; path != NULL && *path != '\0'; path = p)
499 {
500 int n;
501
502 /* colon delimited */
503 if ((p = strchr (path, ':')) == NULL)
504 p = strchr (path, '\0');
505
506 n = (p - path);
507 if (*p != '\0')
508 p++;
509
510 if (n > 0 && n <= maxpath)
511 {
512 strncpy (name, path, n);
513 if (name[n - 1] != '/')
514 name[n++] = '/';
515 name[n] = '\0';
516 strncat (name, file, len);
517
518 if (!access (name, R_OK))
519 return strdup (name);
520 if (ext)
521 {
522 strcat (name, ext);
523 if (!access (name, R_OK))
524 return strdup (name);
525 }
526 }
527 }
528 return NULL;
529}
530
531/* INTPROTO */
532char *
533rxvt_File_find (const char *file, const char *ext, const char *path)
534{
535 char *f;
536
537 if (file == NULL || *file == '\0')
538 return NULL;
539
540 /* search environment variables here too */
541 if ((f = rxvt_File_search_path (path, file, ext)) == NULL)
542#ifdef PATH_ENV
543 if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL)
544#endif
545 f = rxvt_File_search_path (getenv ("PATH"), file, ext);
546
547#ifdef DEBUG_SEARCH_PATH
548 if (f)
549 fprintf (stderr, "found: \"%s\"\n", f);
550#endif
551
552 return f;
553}
554#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
555
556/*----------------------------------------------------------------------*
557 * miscellaneous drawing routines
558 */
559
560/*
561 * Draw top/left and bottom/right border shadows around windows
562 */
563#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
564/* INTPROTO */
565void
566rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h)
567{
568 int shadow;
569
570 shadow = (w == 0 || h == 0) ? 1 : SHADOW;
571 w += x - 1;
572 h += y - 1;
573 for (; shadow-- > 0; x++, y++, w--, h--)
574 {
575 XDrawLine (display, win, topShadow, x, y, w, y);
576 XDrawLine (display, win, topShadow, x, y, x, h);
577 XDrawLine (display, win, botShadow, w, h, w, y + 1);
578 XDrawLine (display, win, botShadow, w, h, x + 1, h);
579 }
580}
581#endif
582
583/* button shapes */
584#ifdef MENUBAR
585/* INTPROTO */
586void
587rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type)
588{
589 switch (type)
590 {
591 case 'r': /* right triangle */
592 XDrawLine (display, win, topShadow, x, y, x, y + w);
593 XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2);
594 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2);
595 break;
596
597 case 'l': /* left triangle */
598 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y);
599 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2);
600 XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y);
601 break;
602
603 case 'd': /* down triangle */
604 XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w);
605 XDrawLine (display, win, topShadow, x, y, x + w, y);
606 XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w);
607 break;
608
609 case 'u': /* up triangle */
610 XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y);
611 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w);
612 XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y);
613 break;
614#if 0
615 case 's': /* square */
616 XDrawLine (display, win, topShadow, x + w, y, x, y);
617 XDrawLine (display, win, topShadow, x, y, x, y + w);
618 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w);
619 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y);
620 break;
621#endif
622
623 }
624}
625#endif
626/*----------------------- end-of-file (C source) -----------------------*/

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