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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.48 by ayin, Tue Oct 23 21:54:42 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;
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_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 * remove leading/trailing space in place. 256 * remove leading/trailing space in place.
239 */ 257 */
240char * 258char *
241rxvt_strtrim (char *str) NOTHROW 259rxvt_strtrim (char *str) noexcept
242{ 260{
243 char *r, *s; 261 char *r, *s;
244 262
245 if (!str || !*str) /* shortcut */ 263 if (!str || !*str) /* shortcut */
246 return str; 264 return str;
260 278
261 return str; 279 return str;
262} 280}
263 281
264/* 282/*
265 * Split a comma-separated string into an array, stripping leading and 283 * Split a string into an array based on the given delimiter, stripping leading and
266 * trailing spaces from each entry. Empty strings are properly returned 284 * trailing spaces from each entry. Empty strings are properly returned
267 */ 285 */
268char ** 286char **
269rxvt_splitcommastring (const char *cs) NOTHROW 287rxvt_strsplit (char delim, const char *str) noexcept
270{ 288{
271 int l, n, p; 289 int l, n;
272 const char *s, *t; 290 char *s, *t;
273 char **ret; 291 char **ret;
274 292
275 if ((s = cs) == NULL) 293 s = strdup (str ? str : "");
276 s = "";
277 294
278 for (n = 1, t = s; *t; t++) 295 for (n = 1, t = s; *t; t++)
279 if (*t == ',') 296 if (*t == delim)
280 n++; 297 n++;
281 298
282 ret = (char **)malloc ((n + 1) * sizeof (char *)); 299 ret = (char **)malloc ((n + 1) * sizeof (char *));
283 ret[n] = NULL; 300 ret[n] = NULL;
284 301
285 for (l = 0, t = s; l < n; l++) 302 for (l = 0, t = s; l < n; l++)
286 { 303 {
287 for ( ; *t && *t != ','; t++) ; 304 for (; *t && *t != delim; t++)
288 p = t - s; 305 ;
289 ret[l] = (char *)malloc (p + 1); 306 *t = '\0';
290 strncpy (ret[l], s, p);
291 ret[l][p] = '\0'; 307 ret[l] = s;
292 rxvt_strtrim (ret[l]); 308 rxvt_strtrim (ret[l]);
293 s = ++t; 309 s = ++t;
294 } 310 }
295 311
296 return ret; 312 return ret;
297} 313}
298 314
299void 315void *
300rxvt_freecommastring (char **cs) NOTHROW 316rxvt_malloc (size_t size)
301{ 317{
302 for (int i = 0; cs[i]; ++i) 318 void *p = malloc (size);
303 free (cs[i]);
304 319
305 free (cs); 320 if (!p)
306} 321 rxvt_fatal ("memory allocation failure. aborting.\n");
307 322
323 return p;
324}
308 325
326void *
327rxvt_calloc (size_t number, size_t size)
328{
329 void *p = calloc (number, size);
309 330
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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