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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.42 by ayin, Mon Aug 27 20:00:26 2007 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
253/*
254 * remove leading/trailing space and strip-off leading/trailing quotes.
255 * in place.
256 */
257char *
258rxvt_Str_trim (char *str) NOTHROW
259{ 260{
260 char *r, *s; 261 char *r, *s;
261 262
262 if (!str || !*str) /* shortcut */ 263 if (!str || !*str) /* shortcut */
263 return str; 264 return str;
… …
270 271
271 /* dump return and other trailing whitespace */ 272 /* dump return and other trailing whitespace */
272 while (r > s && isspace (*r)) 273 while (r > s && isspace (*r))
273 r--; 274 r--;
274 275
275#if 0
276 /* skip matching leading/trailing quotes */
277 if (*s == '"' && *r == '"' && n > 1)
278 {
279 s++;
280 n -= 2;
281 }
282#endif
283
284 memmove (str, s, r + 1 - s); 276 memmove (str, s, r + 1 - s);
285 str[r + 1 - s] = 0; 277 str[r + 1 - s] = 0;
286 278
287 return str; 279 return str;
288} 280}
289 281
290/* 282/*
291 * in-place interpretation of string: 283 * Split a string into an array based on the given delimiter, stripping leading and
292 * 284 * trailing spaces from each entry. Empty strings are properly returned
293 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
294 * Ctrl chars: ^@ .. ^_, ^?
295 *
296 * Emacs-style: "M-" prefix
297 *
298 * Also,
299 * "M-x" prefixed strings, append "\r" if needed
300 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
301 *
302 * returns the converted string length
303 */ 285 */
304int 286char **
305rxvt_Str_escaped (char *str) NOTHROW 287rxvt_strsplit (char delim, const char *str) noexcept
306{ 288{
307 char ch, *s, *d; 289 int l, n;
308 int i, num, append = 0; 290 char *s, *t;
291 char **ret;
309 292
310 if (!str || !*str) 293 s = strdup (str ? str : "");
311 return 0;
312
313 d = s = str;
314
315 if (*s == 'M' && s[1] == '-')
316 {
317 /* Emacs convenience, replace leading `M-..' with `\E..' */
318 *d++ = C0_ESC;
319 s += 2;
320 if (toupper (*s) == 'X')
321 /* append carriage-return for `M-xcommand' */
322 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
323 }
324 for (; (ch = *s++);)
325 {
326 if (ch == '\\')
327 {
328 ch = *s++;
329 if (ch >= '0' && ch <= '7')
330 { /* octal */
331 num = ch - '0';
332 for (i = 0; i < 2; i++, s++)
333 {
334 ch = *s;
335 if (ch < '0' || ch > '7')
336 break;
337 num = num * 8 + ch - '0';
338 }
339 ch = (char)num;
340 }
341 else if (ch == 'a')
342 ch = C0_BEL; /* bell */
343 else if (ch == 'b')
344 ch = C0_BS; /* backspace */
345 else if (ch == 'E' || ch == 'e')
346 ch = C0_ESC; /* escape */
347 else if (ch == 'n')
348 ch = '\n'; /* newline */
349 else if (ch == 'r')
350 ch = '\r'; /* carriage-return */
351 else if (ch == 't')
352 ch = C0_HT; /* tab */
353 }
354 else if (ch == '^')
355 {
356 ch = *s++;
357 ch = toupper (ch);
358 ch = (ch == '?' ? 127 : (ch - '@'));
359 }
360 *d++ = ch;
361 }
362
363 /* ESC] is an XTerm escape sequence, must be terminated */
364 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
365 append = CHAR_ST;
366
367 /* add trailing character as required */
368 if (append && d[-1] != append)
369 *d++ = append;
370 *d = '\0';
371
372 return (d - str);
373}
374
375/*
376 * Split a comma-separated string into an array, stripping leading and
377 * trailing spaces from each entry. Empty strings are properly returned
378 * Caller should free each entry and array when done
379 */
380char **
381rxvt_splitcommastring (const char *cs) NOTHROW
382{
383 int l, n, p;
384 const char *s, *t;
385 char **ret;
386
387 if ((s = cs) == NULL)
388 s = "";
389 294
390 for (n = 1, t = s; *t; t++) 295 for (n = 1, t = s; *t; t++)
391 if (*t == ',') 296 if (*t == delim)
392 n++; 297 n++;
393 298
394 ret = (char **)malloc ((n + 1) * sizeof (char *)); 299 ret = (char **)malloc ((n + 1) * sizeof (char *));
395 ret[n] = NULL; 300 ret[n] = NULL;
396 301
397 for (l = 0, t = s; l < n; l++) 302 for (l = 0, t = s; l < n; l++)
398 { 303 {
399 for ( ; *t && *t != ','; t++) ; 304 for (; *t && *t != delim; t++)
400 p = t - s; 305 ;
401 ret[l] = (char *)malloc (p + 1); 306 *t = '\0';
402 strncpy (ret[l], s, p);
403 ret[l][p] = '\0'; 307 ret[l] = s;
404 rxvt_Str_trim (ret[l]); 308 rxvt_strtrim (ret[l]);
405 s = ++t; 309 s = ++t;
406 } 310 }
407 311
408 return ret; 312 return ret;
409} 313}
410 314
411void 315void *
412rxvt_freecommastring (char **cs) NOTHROW 316rxvt_malloc (size_t size)
413{ 317{
414 for (int i = 0; cs[i]; ++i) 318 void *p = malloc (size);
415 free (cs[i]);
416 319
417 free (cs); 320 if (!p)
418} 321 rxvt_fatal ("memory allocation failure. aborting.\n");
419 322
323 return p;
324}
420 325
326void *
327rxvt_calloc (size_t number, size_t size)
328{
329 void *p = calloc (number, size);
421 330
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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