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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.16 by root, Sun Nov 21 19:04:07 2004 UTC vs.
Revision 1.50 by ayin, Tue Dec 18 01:36:24 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
30/* INTPROTO */
31char * 29char *
32rxvt_wcstombs (const wchar_t *str, int len) 30rxvt_wcstombs (const wchar_t *str, int len)
33{ 31{
32 if (len < 0) len = wcslen (str);
33
34 mbstate mbs; 34 mbstate mbs;
35 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1); 35 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1);
36 36
37 char *dst = r; 37 char *dst = r;
38 while (len--) 38 while (len--)
39 { 39 {
40 int l = wcrtomb (dst, *str++, mbs); 40 ssize_t l = wcrtomb (dst, *str++, mbs);
41
41 if (l < 0) 42 if (l < 0)
42 *dst++ = '?'; 43 *dst++ = '?';
43 else 44 else
44 dst += l; 45 dst += l;
45 } 46 }
46 47
47 *dst++ = 0; 48 *dst++ = 0;
48 49
50 return (char *)rxvt_realloc (r, dst - r);
51}
52
53wchar_t *
54rxvt_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
49 return r; 63 return r;
50} 64}
51 65
52/* INTPROTO */
53char * 66char *
54rxvt_strdup (const char *str) 67rxvt_wcstoutf8 (const wchar_t *str, int len)
55{ 68{
56 return str ? strdup (str) : 0; 69 if (len < 0) len = wcslen (str);
57}
58 70
59/* INTPROTO */ 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
101wchar_t *
102rxvt_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
60char * 167char *
61rxvt_r_basename (const char *str) 168rxvt_basename (const char *str) NOTHROW
62{ 169{
63 char *base = strrchr (str, '/'); 170 char *base = strrchr (str, '/');
64 171
65 return (char *) (base ? base + 1 : str); 172 return (char *) (base ? base + 1 : str);
66} 173}
67 174
68/* 175/*
69 * Print an error message 176 * Print an error message
70 */ 177 */
71/* INTPROTO */
72void 178void
73rxvt_vlog (const char *fmt, va_list arg_ptr) 179rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
74{ 180{
75 char msg[1024]; 181 char msg[1024];
76 182
77 vsnprintf (msg, sizeof msg, fmt, arg_ptr); 183 vsnprintf (msg, sizeof msg, fmt, arg_ptr);
78 184
… …
80 (*GET_R->log_hook) (msg); 186 (*GET_R->log_hook) (msg);
81 else 187 else
82 write (STDOUT_FILENO, msg, strlen (msg)); 188 write (STDOUT_FILENO, msg, strlen (msg));
83} 189}
84 190
85/* INTPROTO */
86void 191void
87rxvt_log (const char *fmt,...) 192rxvt_log (const char *fmt,...) NOTHROW
88{ 193{
89 va_list arg_ptr; 194 va_list arg_ptr;
90 195
91 va_start (arg_ptr, fmt); 196 va_start (arg_ptr, fmt);
92 rxvt_vlog (fmt, arg_ptr); 197 rxvt_vlog (fmt, arg_ptr);
… …
94} 199}
95 200
96/* 201/*
97 * Print an error message 202 * Print an error message
98 */ 203 */
99/* INTPROTO */
100void 204void
101rxvt_warn (const char *fmt,...) 205rxvt_warn (const char *fmt,...) NOTHROW
102{ 206{
103 va_list arg_ptr; 207 va_list arg_ptr;
104 208
105 rxvt_log ("%s: ", RESNAME); 209 rxvt_log ("%s: ", RESNAME);
106 210
107 va_start (arg_ptr, fmt); 211 va_start (arg_ptr, fmt);
108 rxvt_vlog (fmt, arg_ptr); 212 rxvt_vlog (fmt, arg_ptr);
109 va_end (arg_ptr); 213 va_end (arg_ptr);
110} 214}
111 215
112/* INTPROTO */
113void 216void
114rxvt_fatal (const char *fmt,...) 217rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
115{ 218{
116 va_list arg_ptr; 219 va_list arg_ptr;
117 220
118 rxvt_log ("%s: ", RESNAME); 221 rxvt_log ("%s: ", RESNAME);
119 222
… …
122 va_end (arg_ptr); 225 va_end (arg_ptr);
123 226
124 rxvt_exit_failure (); 227 rxvt_exit_failure ();
125} 228}
126 229
230void
231rxvt_exit_failure () THROW ((class rxvt_failure_exception))
232{
127class rxvt_failure_exception rxvt_failure_exception; 233 static class rxvt_failure_exception rxvt_failure_exception;
128
129/* INTPROTO */
130void
131rxvt_exit_failure ()
132{
133 throw (rxvt_failure_exception); 234 throw (rxvt_failure_exception);
134} 235}
135 236
136/* 237/*
137 * check that the first characters of S1 match S2 238 * remove leading/trailing space in place.
138 *
139 * No Match
140 * return: 0
141 * Match
142 * return: strlen (S2)
143 */ 239 */
144/* INTPROTO */ 240char *
145int
146rxvt_Str_match (const char *s1, const char *s2)
147{
148 int n = strlen (s2);
149
150 return ((strncmp (s1, s2, n) == 0) ? n : 0);
151}
152
153/* INTPROTO */
154const char *
155rxvt_Str_skip_space (const char *str)
156{
157 if (str)
158 while (*str && isspace (*str))
159 str++;
160
161 return str;
162}
163
164/*
165 * remove leading/trailing space and strip-off leading/trailing quotes.
166 * in place.
167 */
168/* INTPROTO */
169char *
170rxvt_Str_trim (char *str) 241rxvt_strtrim (char *str) NOTHROW
171{ 242{
172 char *r, *s; 243 char *r, *s;
173 int n;
174 244
175 if (!str || !*str) /* shortcut */ 245 if (!str || !*str) /* shortcut */
176 return str; 246 return str;
177 247
178 /* skip leading spaces */ 248 /* skip leading spaces */
179 for (s = str; *s && isspace (*s); s++) ; 249 for (s = str; *s && isspace (*s); s++) ;
250
180 /* goto end of string */ 251 /* goto end of string */
181 for (n = 0, r = s; *r++; n++) ; 252 r = s + strlen (s) - 1;
182 r -= 2; 253
183 /* dump return */ 254 /* dump return and other trailing whitespace */
184 if (n > 0 && *r == '\n') 255 while (r > s && isspace (*r))
185 n--, r--; 256 r--;
186 /* backtrack along trailing spaces */
187 for (; n > 0 && isspace (*r); r--, n--) ;
188 /* skip matching leading/trailing quotes */
189 if (*s == '"' && *r == '"' && n > 1)
190 {
191 s++;
192 n -= 2;
193 }
194 257
195 /* copy back over: forwards copy */ 258 memmove (str, s, r + 1 - s);
196 for (r = str; n; n--) 259 str[r + 1 - s] = 0;
197 *r++ = *s++;
198 *r = '\0';
199 260
200 return str; 261 return str;
201}
202
203/*
204 * in-place interpretation of string:
205 *
206 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
207 * Ctrl chars: ^@ .. ^_, ^?
208 *
209 * Emacs-style: "M-" prefix
210 *
211 * Also,
212 * "M-x" prefixed strings, append "\r" if needed
213 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
214 *
215 * returns the converted string length
216 */
217/* INTPROTO */
218int
219rxvt_Str_escaped (char *str)
220{
221 char ch, *s, *d;
222 int i, num, append = 0;
223
224 if (!str || !*str)
225 return 0;
226
227 d = s = str;
228
229 if (*s == 'M' && s[1] == '-')
230 {
231 /* Emacs convenience, replace leading `M-..' with `\E..' */
232 *d++ = C0_ESC;
233 s += 2;
234 if (toupper (*s) == 'X')
235 /* append carriage-return for `M-xcommand' */
236 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
237 }
238 for (; (ch = *s++);)
239 {
240 if (ch == '\\')
241 {
242 ch = *s++;
243 if (ch >= '0' && ch <= '7')
244 { /* octal */
245 num = ch - '0';
246 for (i = 0; i < 2; i++, s++)
247 {
248 ch = *s;
249 if (ch < '0' || ch > '7')
250 break;
251 num = num * 8 + ch - '0';
252 }
253 ch = (char)num;
254 }
255 else if (ch == 'a')
256 ch = C0_BEL; /* bell */
257 else if (ch == 'b')
258 ch = C0_BS; /* backspace */
259 else if (ch == 'E' || ch == 'e')
260 ch = C0_ESC; /* escape */
261 else if (ch == 'n')
262 ch = '\n'; /* newline */
263 else if (ch == 'r')
264 ch = '\r'; /* carriage-return */
265 else if (ch == 't')
266 ch = C0_HT; /* tab */
267 }
268 else if (ch == '^')
269 {
270 ch = *s++;
271 ch = toupper (ch);
272 ch = (ch == '?' ? 127 : (ch - '@'));
273 }
274 *d++ = ch;
275 }
276
277 /* ESC] is an XTerm escape sequence, must be terminated */
278 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
279 append = CHAR_ST;
280
281 /* add trailing character as required */
282 if (append && d[-1] != append)
283 *d++ = append;
284 *d = '\0';
285
286 return (d - str);
287} 262}
288 263
289/* 264/*
290 * Split a comma-separated string into an array, stripping leading and 265 * Split a comma-separated string into an array, stripping leading and
291 * trailing spaces (and paired quotes) from each entry. Empty strings 266 * trailing spaces from each entry. Empty strings are properly returned
292 * are properly returned
293 * Caller should free each entry and array when done
294 */ 267 */
295/* INTPROTO */ 268char **
296char **
297rxvt_splitcommastring (const char *cs) 269rxvt_splitcommastring (const char *cs) NOTHROW
298{ 270{
299 int l, n, p; 271 int l, n, p;
300 const char *s, *t; 272 const char *s, *t;
301 char **ret; 273 char **ret;
302 274
… …
304 s = ""; 276 s = "";
305 277
306 for (n = 1, t = s; *t; t++) 278 for (n = 1, t = s; *t; t++)
307 if (*t == ',') 279 if (*t == ',')
308 n++; 280 n++;
281
309 ret = (char **)malloc ((n + 1) * sizeof (char *)); 282 ret = (char **)malloc ((n + 1) * sizeof (char *));
310 ret[n] = NULL; 283 ret[n] = NULL;
311 284
312 for (l = 0, t = s; l < n; l++) 285 for (l = 0, t = s; l < n; l++)
313 { 286 {
314 for ( ; *t && *t != ','; t++) ; 287 for ( ; *t && *t != ','; t++) ;
315 p = t - s; 288 p = t - s;
316 ret[l] = (char *)malloc (p + 1); 289 ret[l] = (char *)malloc (p + 1);
317 strncpy (ret[l], s, p); 290 strncpy (ret[l], s, p);
318 ret[l][p] = '\0'; 291 ret[l][p] = '\0';
319 rxvt_Str_trim (ret[l]); 292 rxvt_strtrim (ret[l]);
320 s = ++t; 293 s = ++t;
321 } 294 }
295
322 return ret; 296 return ret;
323} 297}
324 298
325void 299void
326rxvt_freecommastring (char **cs) 300rxvt_freecommastring (char **cs) NOTHROW
327{ 301{
328 for (int i = 0; cs[i]; ++i) 302 for (int i = 0; cs[i]; ++i)
329 free (cs[i]); 303 free (cs[i]);
330 304
331 free (cs); 305 free (cs);
332} 306}
333 307
334/*----------------------------------------------------------------------* 308void *
335 * file searching 309rxvt_malloc (size_t size)
336 */
337
338/* #define DEBUG_SEARCH_PATH */
339
340#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
341/*
342 * search for FILE in the current working directory, and within the
343 * colon-delimited PATHLIST, adding the file extension EXT if required.
344 *
345 * FILE is either semi-colon or zero terminated
346 */
347/* INTPROTO */
348char *
349rxvt_File_search_path (const char *pathlist, const char *file, const char *ext)
350{ 310{
351 int maxpath, len; 311 void *p = malloc (size);
352 const char *p, *path;
353 char name[256];
354 312
355 if (!access (file, R_OK)) /* found (plain name) in current directory */
356 return strdup (file);
357
358 /* semi-colon delimited */
359 if ((p = strchr (file, ';')))
360 len = (p - file);
361 else
362 len = strlen (file);
363
364#ifdef DEBUG_SEARCH_PATH
365 getcwd (name, sizeof (name));
366 fprintf (stderr, "pwd: \"%s\"\n", name);
367 fprintf (stderr, "find: \"%.*s\"\n", len, file);
368#endif
369
370 /* leave room for an extra '/' and trailing '\0' */
371 maxpath = sizeof (name) - (len + (ext ? strlen (ext) : 0) + 2);
372 if (maxpath <= 0)
373 return NULL;
374
375 /* check if we can find it now */
376 strncpy (name, file, len);
377 name[len] = '\0';
378
379 if (!access (name, R_OK))
380 return strdup (name);
381 if (ext)
382 {
383 strcat (name, ext);
384 if (!access (name, R_OK))
385 return strdup (name);
386 }
387 for (path = pathlist; path != NULL && *path != '\0'; path = p)
388 {
389 int n;
390
391 /* colon delimited */
392 if ((p = strchr (path, ':')) == NULL)
393 p = strchr (path, '\0');
394
395 n = (p - path);
396 if (*p != '\0')
397 p++;
398
399 if (n > 0 && n <= maxpath)
400 {
401 strncpy (name, path, n);
402 if (name[n - 1] != '/')
403 name[n++] = '/';
404 name[n] = '\0';
405 strncat (name, file, len);
406
407 if (!access (name, R_OK))
408 return strdup (name);
409 if (ext)
410 {
411 strcat (name, ext);
412 if (!access (name, R_OK))
413 return strdup (name);
414 }
415 }
416 }
417 return NULL;
418}
419
420/* INTPROTO */
421char *
422rxvt_File_find (const char *file, const char *ext, const char *path)
423{
424 char *f;
425
426 if (file == NULL || *file == '\0')
427 return NULL;
428
429 /* search environment variables here too */
430 if ((f = rxvt_File_search_path (path, file, ext)) == NULL)
431#ifdef PATH_ENV
432 if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL)
433#endif
434 f = rxvt_File_search_path (getenv ("PATH"), file, ext);
435
436#ifdef DEBUG_SEARCH_PATH
437 if (f) 313 if (!p)
438 fprintf (stderr, "found: \"%s\"\n", f); 314 rxvt_fatal ("memory allocation failure. aborting.\n");
439#endif
440 315
441 return f; 316 return p;
442} 317}
443#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
444 318
445/*----------------------------------------------------------------------*
446 * miscellaneous drawing routines
447 */
448
449/*
450 * Draw top/left and bottom/right border shadows around windows
451 */
452#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
453/* INTPROTO */
454void 319void *
455rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) 320rxvt_calloc (size_t number, size_t size)
456{ 321{
457 int shadow; 322 void *p = calloc (number, size);
458 323
459 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 324 if (!p)
460 w += x - 1; 325 rxvt_fatal ("memory allocation failure. aborting.\n");
461 h += y - 1;
462 for (; shadow-- > 0; x++, y++, w--, h--)
463 {
464 XDrawLine (display, win, topShadow, x, y, w, y);
465 XDrawLine (display, win, topShadow, x, y, x, h);
466 XDrawLine (display, win, botShadow, w, h, w, y + 1);
467 XDrawLine (display, win, botShadow, w, h, x + 1, h);
468 }
469}
470#endif
471 326
472/* button shapes */ 327 return p;
473#ifdef MENUBAR 328}
474/* INTPROTO */ 329
475void 330void *
476rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) 331rxvt_realloc (void *ptr, size_t size)
477{ 332{
478 switch (type) 333 void *p = realloc (ptr, size);
479 {
480 case 'r': /* right triangle */
481 XDrawLine (display, win, topShadow, x, y, x, y + w);
482 XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2);
483 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2);
484 break;
485 334
486 case 'l': /* left triangle */ 335 if (!p)
487 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); 336 rxvt_fatal ("memory allocation failure. aborting.\n");
488 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2);
489 XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y);
490 break;
491 337
492 case 'd': /* down triangle */ 338 return p;
493 XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w);
494 XDrawLine (display, win, topShadow, x, y, x + w, y);
495 XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w);
496 break;
497
498 case 'u': /* up triangle */
499 XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y);
500 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w);
501 XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y);
502 break;
503#if 0
504 case 's': /* square */
505 XDrawLine (display, win, topShadow, x + w, y, x, y);
506 XDrawLine (display, win, topShadow, x, y, x, y + w);
507 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w);
508 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y);
509 break;
510#endif
511
512 }
513} 339}
514#endif
515/*----------------------- end-of-file (C source) -----------------------*/

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