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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.40 by root, Mon Feb 20 22:42:00 2006 UTC vs.
Revision 1.60 by sf-exg, Thu May 13 19:40:19 2021 UTC

… …
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) 2003-2006 Marc Lehmann <pcg@goof.com> 9 * Copyright (c) 2003-2006 Marc Lehmann <schmorp@schmorp.de>
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 3 of the License, or
14 * (at your option) any later version. 14 * (at your option) any later version.
15 * 15 *
16 * This program is distributed in the hope that it will be useful, 16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
… …
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 28
29#include <new>
30
31// alas new/delete cannot be specified as inline in C++11 (see 17.6.4.6)
32void *
33operator new (size_t s)
34{
35 return rxvt_malloc (s);
36}
37
38void
39operator delete (void *p) noexcept
40{
41 free (p);
42}
43
29char * 44char *
30rxvt_wcstombs (const wchar_t *str, int len) 45rxvt_wcstombs (const wchar_t *str, int len)
31{ 46{
32 if (len < 0) len = wcslen (str); 47 if (len < 0) len = wcslen (str);
33 48
… …
38 while (len--) 53 while (len--)
39 { 54 {
40 ssize_t l = wcrtomb (dst, *str++, mbs); 55 ssize_t l = wcrtomb (dst, *str++, mbs);
41 56
42 if (l < 0) 57 if (l < 0)
58 {
43 *dst++ = '?'; 59 *dst++ = '?';
60 wcrtomb (0, 0, mbs); // reset undefined state
61 }
44 else 62 else
45 dst += l; 63 dst += l;
46 } 64 }
47 65
48 *dst++ = 0; 66 *dst++ = 0;
… …
79 *p++ = w; 97 *p++ = w;
80 else if (w < 0x000800) 98 else if (w < 0x000800)
81 *p++ = 0xc0 | ( w >> 6), 99 *p++ = 0xc0 | ( w >> 6),
82 *p++ = 0x80 | ( w & 0x3f); 100 *p++ = 0x80 | ( w & 0x3f);
83 else if (w < 0x010000) 101 else if (w < 0x010000)
84 *p++ = 0xe0 | ( w >> 12 ), 102 *p++ = 0xe0 | ( w >> 12),
85 *p++ = 0x80 | ((w >> 6) & 0x3f), 103 *p++ = 0x80 | ((w >> 6) & 0x3f),
86 *p++ = 0x80 | ( w & 0x3f); 104 *p++ = 0x80 | ( w & 0x3f);
87 else if (w < 0x110000) 105 else if (w < 0x110000)
88 *p++ = 0xf0 | ( w >> 18), 106 *p++ = 0xf0 | ( w >> 18),
89 *p++ = 0x80 | ((w >> 12) & 0x3f), 107 *p++ = 0x80 | ((w >> 12) & 0x3f),
… …
116 if (len == 0) 134 if (len == 0)
117 break; 135 break;
118 else if (s[0] < 0x80) 136 else if (s[0] < 0x80)
119 *p++ = *s++; 137 *p++ = *s++;
120 else if (len >= 2 138 else if (len >= 2
121 && s[0] >= 0xc2 && s[0] <= 0xdf 139 && s[0] >= 0xc2 && s[0] <= 0xdf
122 && (s[1] & 0xc0) == 0x80) 140 && (s[1] & 0xc0) == 0x80)
123 { 141 {
124 *p++ = ((s[0] & 0x1f) << 6) 142 *p++ = ((s[0] & 0x1f) << 6)
125 | (s[1] & 0x3f); 143 | (s[1] & 0x3f);
126 s += 2; 144 s += 2;
… …
144 || (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f) 162 || (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f)
145 ) 163 )
146 && (s[2] & 0xc0) == 0x80 164 && (s[2] & 0xc0) == 0x80
147 && (s[3] & 0xc0) == 0x80) 165 && (s[3] & 0xc0) == 0x80)
148 { 166 {
149 *p++ = ((s[0] & 0x07) << 18) 167 *p++ = ((s[0] & 0x07) << 18)
150 | ((s[1] & 0x3f) << 12) 168 | ((s[1] & 0x3f) << 12)
151 | ((s[2] & 0x3f) << 6) 169 | ((s[2] & 0x3f) << 6)
152 | (s[3] & 0x3f); 170 | (s[3] & 0x3f);
153 s += 4; 171 s += 4;
154 } 172 }
155 else 173 else
156 { 174 {
… …
162 *p = 0; 180 *p = 0;
163 181
164 return r; 182 return r;
165} 183}
166 184
167char * 185const char *
168rxvt_r_basename (const char *str) NOTHROW 186rxvt_basename (const char *str) noexcept
169{ 187{
170 char *base = strrchr (str, '/'); 188 const char *base = strrchr (str, '/');
171 189
172 return (char *) (base ? base + 1 : str); 190 return base ? base + 1 : str;
173} 191}
174 192
175/* 193/*
176 * Print an error message 194 * Print an error message
177 */ 195 */
178void 196void
179rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW 197rxvt_vlog (const char *fmt, va_list arg_ptr) noexcept
180{ 198{
181 char msg[1024]; 199 char msg[1024];
182 200
183 vsnprintf (msg, sizeof msg, fmt, arg_ptr); 201 vsnprintf (msg, sizeof msg, fmt, arg_ptr);
184 202
… …
187 else 205 else
188 write (STDOUT_FILENO, msg, strlen (msg)); 206 write (STDOUT_FILENO, msg, strlen (msg));
189} 207}
190 208
191void 209void
192rxvt_log (const char *fmt,...) NOTHROW 210rxvt_log (const char *fmt,...) noexcept
193{ 211{
194 va_list arg_ptr; 212 va_list arg_ptr;
195 213
196 va_start (arg_ptr, fmt); 214 va_start (arg_ptr, fmt);
197 rxvt_vlog (fmt, arg_ptr); 215 rxvt_vlog (fmt, arg_ptr);
… …
200 218
201/* 219/*
202 * Print an error message 220 * Print an error message
203 */ 221 */
204void 222void
205rxvt_warn (const char *fmt,...) NOTHROW 223rxvt_warn (const char *fmt,...) noexcept
206{ 224{
207 va_list arg_ptr; 225 va_list arg_ptr;
208 226
209 rxvt_log ("%s: ", RESNAME); 227 rxvt_log ("%s: ", RESNAME);
210 228
… …
212 rxvt_vlog (fmt, arg_ptr); 230 rxvt_vlog (fmt, arg_ptr);
213 va_end (arg_ptr); 231 va_end (arg_ptr);
214} 232}
215 233
216void 234void
217rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception)) 235rxvt_fatal (const char *fmt,...)
218{ 236{
219 va_list arg_ptr; 237 va_list arg_ptr;
220 238
221 rxvt_log ("%s: ", RESNAME); 239 rxvt_log ("%s: ", RESNAME);
222 240
… …
226 244
227 rxvt_exit_failure (); 245 rxvt_exit_failure ();
228} 246}
229 247
230void 248void
231rxvt_exit_failure () THROW ((class rxvt_failure_exception)) 249rxvt_exit_failure ()
232{ 250{
233 static class rxvt_failure_exception rxvt_failure_exception; 251 static class rxvt_failure_exception rxvt_failure_exception;
234 throw (rxvt_failure_exception); 252 throw (rxvt_failure_exception);
235} 253}
236 254
237/* 255/*
238 * check that the first characters of S1 match S2 256 * remove leading/trailing space in place.
239 *
240 * No Match
241 * return: 0
242 * Match
243 * return: strlen (S2)
244 */ 257 */
245int 258char *
246rxvt_Str_match (const char *s1, const char *s2) NOTHROW 259rxvt_strtrim (char *str) noexcept
247{
248 int n = strlen (s2);
249
250 return ((strncmp (s1, s2, n) == 0) ? n : 0);
251}
252
253const char *
254rxvt_Str_skip_space (const char *str) NOTHROW
255{
256 if (str)
257 while (*str && isspace (*str))
258 str++;
259
260 return str;
261}
262
263/*
264 * remove leading/trailing space and strip-off leading/trailing quotes.
265 * in place.
266 */
267char *
268rxvt_Str_trim (char *str) NOTHROW
269{ 260{
270 char *r, *s; 261 char *r, *s;
271 262
272 if (!str || !*str) /* shortcut */ 263 if (!str || !*str) /* shortcut */
273 return str; 264 return str;
… …
280 271
281 /* dump return and other trailing whitespace */ 272 /* dump return and other trailing whitespace */
282 while (r > s && isspace (*r)) 273 while (r > s && isspace (*r))
283 r--; 274 r--;
284 275
285#if 0
286 /* skip matching leading/trailing quotes */
287 if (*s == '"' && *r == '"' && n > 1)
288 {
289 s++;
290 n -= 2;
291 }
292#endif
293
294 memmove (str, s, r + 1 - s); 276 memmove (str, s, r + 1 - s);
295 str[r + 1 - s] = 0; 277 str[r + 1 - s] = 0;
296 278
297 return str; 279 return str;
298} 280}
299 281
300/* 282/*
301 * in-place interpretation of string: 283 * Split a string into an array based on the given delimiter, stripping leading and
302 * 284 * trailing spaces from each entry. Empty strings are properly returned
303 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
304 * Ctrl chars: ^@ .. ^_, ^?
305 *
306 * Emacs-style: "M-" prefix
307 *
308 * Also,
309 * "M-x" prefixed strings, append "\r" if needed
310 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
311 *
312 * returns the converted string length
313 */ 285 */
314int 286char **
315rxvt_Str_escaped (char *str) NOTHROW 287rxvt_strsplit (char delim, const char *str) noexcept
316{ 288{
317 char ch, *s, *d; 289 int l, n;
318 int i, num, append = 0; 290 char *s, *t;
291 char **ret;
319 292
320 if (!str || !*str) 293 s = strdup (str ? str : "");
321 return 0;
322
323 d = s = str;
324
325 if (*s == 'M' && s[1] == '-')
326 {
327 /* Emacs convenience, replace leading `M-..' with `\E..' */
328 *d++ = C0_ESC;
329 s += 2;
330 if (toupper (*s) == 'X')
331 /* append carriage-return for `M-xcommand' */
332 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
333 }
334 for (; (ch = *s++);)
335 {
336 if (ch == '\\')
337 {
338 ch = *s++;
339 if (ch >= '0' && ch <= '7')
340 { /* octal */
341 num = ch - '0';
342 for (i = 0; i < 2; i++, s++)
343 {
344 ch = *s;
345 if (ch < '0' || ch > '7')
346 break;
347 num = num * 8 + ch - '0';
348 }
349 ch = (char)num;
350 }
351 else if (ch == 'a')
352 ch = C0_BEL; /* bell */
353 else if (ch == 'b')
354 ch = C0_BS; /* backspace */
355 else if (ch == 'E' || ch == 'e')
356 ch = C0_ESC; /* escape */
357 else if (ch == 'n')
358 ch = '\n'; /* newline */
359 else if (ch == 'r')
360 ch = '\r'; /* carriage-return */
361 else if (ch == 't')
362 ch = C0_HT; /* tab */
363 }
364 else if (ch == '^')
365 {
366 ch = *s++;
367 ch = toupper (ch);
368 ch = (ch == '?' ? 127 : (ch - '@'));
369 }
370 *d++ = ch;
371 }
372
373 /* ESC] is an XTerm escape sequence, must be terminated */
374 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
375 append = CHAR_ST;
376
377 /* add trailing character as required */
378 if (append && d[-1] != append)
379 *d++ = append;
380 *d = '\0';
381
382 return (d - str);
383}
384
385/*
386 * Split a comma-separated string into an array, stripping leading and
387 * trailing spaces from each entry. Empty strings are properly returned
388 * Caller should free each entry and array when done
389 */
390char **
391rxvt_splitcommastring (const char *cs) NOTHROW
392{
393 int l, n, p;
394 const char *s, *t;
395 char **ret;
396
397 if ((s = cs) == NULL)
398 s = "";
399 294
400 for (n = 1, t = s; *t; t++) 295 for (n = 1, t = s; *t; t++)
401 if (*t == ',') 296 if (*t == delim)
402 n++; 297 n++;
403 298
404 ret = (char **)malloc ((n + 1) * sizeof (char *)); 299 ret = (char **)malloc ((n + 1) * sizeof (char *));
405 ret[n] = NULL; 300 ret[n] = NULL;
406 301
407 for (l = 0, t = s; l < n; l++) 302 for (l = 0, t = s; l < n; l++)
408 { 303 {
409 for ( ; *t && *t != ','; t++) ; 304 for (; *t && *t != delim; t++)
410 p = t - s; 305 ;
411 ret[l] = (char *)malloc (p + 1); 306 *t = '\0';
412 strncpy (ret[l], s, p);
413 ret[l][p] = '\0'; 307 ret[l] = s;
414 rxvt_Str_trim (ret[l]); 308 rxvt_strtrim (ret[l]);
415 s = ++t; 309 s = ++t;
416 } 310 }
417 311
418 return ret; 312 return ret;
419} 313}
420 314
421void 315void *
422rxvt_freecommastring (char **cs) NOTHROW 316rxvt_malloc (size_t size)
423{ 317{
424 for (int i = 0; cs[i]; ++i) 318 void *p = malloc (size);
425 free (cs[i]);
426 319
427 free (cs); 320 if (!p)
428} 321 rxvt_fatal ("memory allocation failure. aborting.\n");
429 322
430/*----------------------------------------------------------------------*
431 * file searching
432 */
433
434#ifdef XPM_BACKGROUND
435/*
436 * search for FILE in the current working directory, and within the
437 * colon-delimited PATHLIST, adding the file extension EXT if required.
438 *
439 * FILE is either semi-colon or zero terminated
440 */
441char *
442rxvt_File_search_path (const char *pathlist, const char *file, const char *ext) NOTHROW
443{
444 int maxpath, len;
445 const char *p, *path;
446 char name[256];
447
448 if (!access (file, R_OK)) /* found (plain name) in current directory */
449 return strdup (file);
450
451 /* semi-colon delimited */
452 if ((p = strchr (file, ';')))
453 len = (p - file);
454 else
455 len = strlen (file);
456
457 /* leave room for an extra '/' and trailing '\0' */
458 maxpath = sizeof (name) - (len + (ext ? strlen (ext) : 0) + 2);
459 if (maxpath <= 0)
460 return NULL;
461
462 /* check if we can find it now */
463 strncpy (name, file, len);
464 name[len] = '\0';
465
466 if (!access (name, R_OK))
467 return strdup (name);
468 if (ext)
469 {
470 strcat (name, ext);
471 if (!access (name, R_OK))
472 return strdup (name);
473 }
474 for (path = pathlist; path != NULL && *path != '\0'; path = p)
475 {
476 int n;
477
478 /* colon delimited */
479 if ((p = strchr (path, ':')) == NULL)
480 p = strchr (path, '\0');
481
482 n = (p - path);
483 if (*p != '\0')
484 p++;
485
486 if (n > 0 && n <= maxpath)
487 {
488 strncpy (name, path, n);
489 if (name[n - 1] != '/')
490 name[n++] = '/';
491 name[n] = '\0';
492 strncat (name, file, len);
493
494 if (!access (name, R_OK))
495 return strdup (name);
496 if (ext)
497 {
498 strcat (name, ext);
499 if (!access (name, R_OK))
500 return strdup (name);
501 }
502 }
503 }
504 return NULL;
505}
506
507char *
508rxvt_File_find (const char *file, const char *ext, const char *path) NOTHROW
509{
510 char *f;
511
512 if (file == NULL || *file == '\0')
513 return NULL;
514
515 f = rxvt_File_search_path (path, file, ext);
516
517 return f; 323 return p;
518} 324}
519#endif
520 325
326void *
327rxvt_calloc (size_t number, size_t size)
328{
329 void *p = calloc (number, size);
521 330
331 if (!p)
332 rxvt_fatal ("memory allocation failure. aborting.\n");
333
334 return p;
335}
336
337void *
338rxvt_realloc (void *ptr, size_t size)
339{
340 void *p = realloc (ptr, size);
341
342 if (!p)
343 rxvt_fatal ("memory allocation failure. aborting.\n");
344
345 return p;
346}
347
348KeySym
349rxvt_XKeycodeToKeysym (Display *dpy, KeyCode code, int index)
350{
351 int size;
352 KeySym *mapping = XGetKeyboardMapping (dpy, code, 1, &size);
353 KeySym keysym = IN_RANGE_EXC (index, 0, size) ? mapping[index] : NoSymbol;
354 XFree (mapping);
355 return keysym;
356}

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