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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.8 by pcg, Fri Feb 27 02:52:51 2004 UTC vs.
Revision 1.58 by sf-exg, Fri Sep 5 19:02:53 2014 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 <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
… …
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/* EXTPROTO */
31char * 29char *
32rxvt_strdup (const char *str) 30rxvt_wcstombs (const wchar_t *str, int len)
33{ 31{
34 return str ? strdup (str) : 0; 32 if (len < 0) len = wcslen (str);
35}
36 33
37/* EXTPROTO */ 34 mbstate mbs;
35 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1);
36
37 char *dst = r;
38 while (len--)
39 {
40 ssize_t l = wcrtomb (dst, *str++, mbs);
41
42 if (l < 0)
43 {
44 *dst++ = '?';
45 wcrtomb (0, 0, mbs); // reset undefined state
46 }
47 else
48 dst += l;
49 }
50
51 *dst++ = 0;
52
53 return (char *)rxvt_realloc (r, dst - r);
54}
55
56wchar_t *
57rxvt_mbstowcs (const char *str, int len)
58{
59 if (len < 0) len = strlen (str);
60
61 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t));
62
63 if ((ssize_t)mbstowcs (r, str, len + 1) < 0)
64 *r = 0;
65
66 return r;
67}
68
38char * 69char *
70rxvt_wcstoutf8 (const wchar_t *str, int len)
71{
72 if (len < 0) len = wcslen (str);
73
74 char *r = (char *)rxvt_malloc (len * 4 + 1);
75 char *p = r;
76
77 while (len--)
78 {
79 unicode_t w = *str++ & UNICODE_MASK;
80
81 if (w < 0x000080)
82 *p++ = w;
83 else if (w < 0x000800)
84 *p++ = 0xc0 | ( w >> 6),
85 *p++ = 0x80 | ( w & 0x3f);
86 else if (w < 0x010000)
87 *p++ = 0xe0 | ( w >> 12),
88 *p++ = 0x80 | ((w >> 6) & 0x3f),
89 *p++ = 0x80 | ( w & 0x3f);
90 else if (w < 0x110000)
91 *p++ = 0xf0 | ( w >> 18),
92 *p++ = 0x80 | ((w >> 12) & 0x3f),
93 *p++ = 0x80 | ((w >> 6) & 0x3f),
94 *p++ = 0x80 | ( w & 0x3f);
95 else
96 *p++ = '?';
97 }
98
99 *p++ = 0;
100
101 return (char *)rxvt_realloc (r, p - r);
102}
103
104wchar_t *
105rxvt_utf8towcs (const char *str, int len)
106{
107 if (len < 0) len = strlen (str);
108
109 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)),
110 *p = r;
111
112 unsigned char *s = (unsigned char *)str,
113 *e = s + len;
114
115 for (;;)
116 {
117 len = e - s;
118
119 if (len == 0)
120 break;
121 else if (s[0] < 0x80)
122 *p++ = *s++;
123 else if (len >= 2
124 && s[0] >= 0xc2 && s[0] <= 0xdf
125 && (s[1] & 0xc0) == 0x80)
126 {
127 *p++ = ((s[0] & 0x1f) << 6)
128 | (s[1] & 0x3f);
129 s += 2;
130 }
131 else if (len >= 3
132 && ( (s[0] == 0xe0 && s[1] >= 0xa0 && s[1] <= 0xbf)
133 || (s[0] >= 0xe1 && s[0] <= 0xec && s[1] >= 0x80 && s[1] <= 0xbf)
134 || (s[0] == 0xed && s[1] >= 0x80 && s[1] <= 0x9f)
135 || (s[0] >= 0xee && s[0] <= 0xef && s[1] >= 0x80 && s[1] <= 0xbf)
136 )
137 && (s[2] & 0xc0) == 0x80)
138 {
139 *p++ = ((s[0] & 0x0f) << 12)
140 | ((s[1] & 0x3f) << 6)
141 | (s[2] & 0x3f);
142 s += 3;
143 }
144 else if (len >= 4
145 && ( (s[0] == 0xf0 && s[1] >= 0x90 && s[1] <= 0xbf)
146 || (s[0] >= 0xf1 && s[0] <= 0xf3 && s[1] >= 0x80 && s[1] <= 0xbf)
147 || (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f)
148 )
149 && (s[2] & 0xc0) == 0x80
150 && (s[3] & 0xc0) == 0x80)
151 {
152 *p++ = ((s[0] & 0x07) << 18)
153 | ((s[1] & 0x3f) << 12)
154 | ((s[2] & 0x3f) << 6)
155 | (s[3] & 0x3f);
156 s += 4;
157 }
158 else
159 {
160 *p++ = 0xfffd;
161 s++;
162 }
163 }
164
165 *p = 0;
166
167 return r;
168}
169
170const char *
39rxvt_r_basename (const char *str) 171rxvt_basename (const char *str) NOTHROW
40{ 172{
41 char *base = STRRCHR (str, '/'); 173 const char *base = strrchr (str, '/');
42 174
43 return (char *) (base ? base + 1 : str); 175 return base ? base + 1 : str;
44} 176}
45 177
46/* 178/*
47 * Print an error message 179 * Print an error message
48 */ 180 */
49/* EXTPROTO */
50void 181void
51rxvt_print_error (const char *fmt,...) 182rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
183{
184 char msg[1024];
185
186 vsnprintf (msg, sizeof msg, fmt, arg_ptr);
187
188 if (GET_R && GET_R->log_hook)
189 (*GET_R->log_hook) (msg);
190 else
191 write (STDOUT_FILENO, msg, strlen (msg));
192}
193
194void
195rxvt_log (const char *fmt,...) NOTHROW
52{ 196{
53 va_list arg_ptr; 197 va_list arg_ptr;
54 198
55 va_start (arg_ptr, fmt); 199 va_start (arg_ptr, fmt);
56 fprintf (stderr, APL_NAME ": "); 200 rxvt_vlog (fmt, arg_ptr);
57 vfprintf (stderr, fmt, arg_ptr);
58 fprintf (stderr, "\n");
59 va_end (arg_ptr); 201 va_end (arg_ptr);
60} 202}
61 203
62/* 204/*
63 * check that the first characters of S1 match S2 205 * Print an error message
64 *
65 * No Match
66 * return: 0
67 * Match
68 * return: STRLEN (S2)
69 */ 206 */
70/* EXTPROTO */ 207void
71int 208rxvt_warn (const char *fmt,...) NOTHROW
72rxvt_Str_match (const char *s1, const char *s2)
73{ 209{
74 int n = STRLEN (s2); 210 va_list arg_ptr;
75 211
76 return ((STRNCMP (s1, s2, n) == 0) ? n : 0); 212 rxvt_log ("%s: ", RESNAME);
77}
78 213
79/* EXTPROTO */ 214 va_start (arg_ptr, fmt);
80const char * 215 rxvt_vlog (fmt, arg_ptr);
81rxvt_Str_skip_space (const char *str) 216 va_end (arg_ptr);
82{ 217}
83 if (str)
84 while (*str && isspace (*str))
85 str++;
86 218
87 return str; 219void
220rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
221{
222 va_list arg_ptr;
223
224 rxvt_log ("%s: ", RESNAME);
225
226 va_start (arg_ptr, fmt);
227 rxvt_vlog (fmt, arg_ptr);
228 va_end (arg_ptr);
229
230 rxvt_exit_failure ();
231}
232
233void
234rxvt_exit_failure () THROW ((class rxvt_failure_exception))
235{
236 static class rxvt_failure_exception rxvt_failure_exception;
237 throw (rxvt_failure_exception);
88} 238}
89 239
90/* 240/*
91 * remove leading/trailing space and strip-off leading/trailing quotes. 241 * remove leading/trailing space in place.
92 * in place.
93 */ 242 */
94/* EXTPROTO */ 243char *
95char *
96rxvt_Str_trim (char *str) 244rxvt_strtrim (char *str) NOTHROW
97{ 245{
98 char *r, *s; 246 char *r, *s;
99 int n;
100 247
101 if (!str || !*str) /* shortcut */ 248 if (!str || !*str) /* shortcut */
102 return str; 249 return str;
103 250
104 /* skip leading spaces */ 251 /* skip leading spaces */
105 for (s = str; *s && isspace (*s); s++) ; 252 for (s = str; *s && isspace (*s); s++) ;
253
106 /* goto end of string */ 254 /* goto end of string */
107 for (n = 0, r = s; *r++; n++) ; 255 r = s + strlen (s) - 1;
108 r -= 2; 256
109 /* dump return */ 257 /* dump return and other trailing whitespace */
110 if (n > 0 && *r == '\n') 258 while (r > s && isspace (*r))
111 n--, r--; 259 r--;
112 /* backtrack along trailing spaces */
113 for (; n > 0 && isspace (*r); r--, n--) ;
114 /* skip matching leading/trailing quotes */
115 if (*s == '"' && *r == '"' && n > 1)
116 {
117 s++;
118 n -= 2;
119 }
120 260
121 /* copy back over: forwards copy */ 261 memmove (str, s, r + 1 - s);
122 for (r = str; n; n--) 262 str[r + 1 - s] = 0;
123 *r++ = *s++;
124 *r = '\0';
125 263
126 return str; 264 return str;
127} 265}
128 266
129/* 267/*
130 * in-place interpretation of string: 268 * Split a string into an array based on the given delimiter, stripping leading and
131 * 269 * trailing spaces from each entry. Empty strings are properly returned
132 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
133 * Ctrl chars: ^@ .. ^_, ^?
134 *
135 * Emacs-style: "M-" prefix
136 *
137 * Also,
138 * "M-x" prefixed strings, append "\r" if needed
139 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
140 *
141 * returns the converted string length
142 */ 270 */
143/* EXTPROTO */ 271char **
144int 272rxvt_strsplit (char delim, const char *str) NOTHROW
145rxvt_Str_escaped (char *str)
146{ 273{
147 char ch, *s, *d; 274 int l, n;
148 int i, num, append = 0; 275 char *s, *t;
276 char **ret;
149 277
150 if (!str || !*str) 278 s = strdup (str ? str : "");
151 return 0;
152
153 d = s = str;
154
155 if (*s == 'M' && s[1] == '-')
156 {
157 /* Emacs convenience, replace leading `M-..' with `\E..' */
158 *d++ = C0_ESC;
159 s += 2;
160 if (toupper (*s) == 'X')
161 /* append carriage-return for `M-xcommand' */
162 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
163 }
164 for (; (ch = *s++);)
165 {
166 if (ch == '\\')
167 {
168 ch = *s++;
169 if (ch >= '0' && ch <= '7')
170 { /* octal */
171 num = ch - '0';
172 for (i = 0; i < 2; i++, s++)
173 {
174 ch = *s;
175 if (ch < '0' || ch > '7')
176 break;
177 num = num * 8 + ch - '0';
178 }
179 ch = (char)num;
180 }
181 else if (ch == 'a')
182 ch = C0_BEL; /* bell */
183 else if (ch == 'b')
184 ch = C0_BS; /* backspace */
185 else if (ch == 'E' || ch == 'e')
186 ch = C0_ESC; /* escape */
187 else if (ch == 'n')
188 ch = '\n'; /* newline */
189 else if (ch == 'r')
190 ch = '\r'; /* carriage-return */
191 else if (ch == 't')
192 ch = C0_HT; /* tab */
193 }
194 else if (ch == '^')
195 {
196 ch = *s++;
197 ch = toupper (ch);
198 ch = (ch == '?' ? 127 : (ch - '@'));
199 }
200 *d++ = ch;
201 }
202
203 /* ESC] is an XTerm escape sequence, must be terminated */
204 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
205 append = CHAR_ST;
206
207 /* add trailing character as required */
208 if (append && d[-1] != append)
209 *d++ = append;
210 *d = '\0';
211
212 return (d - str);
213}
214
215/*
216 * Split a comma-separated string into an array, stripping leading and
217 * trailing spaces (and paired quotes) from each entry. Empty strings
218 * are properly returned
219 * Caller should free each entry and array when done
220 */
221/* EXTPROTO */
222char **
223rxvt_splitcommastring (const char *cs)
224{
225 int l, n, p;
226 const char *s, *t;
227 char **ret;
228
229 if ((s = cs) == NULL)
230 s = "";
231 279
232 for (n = 1, t = s; *t; t++) 280 for (n = 1, t = s; *t; t++)
233 if (*t == ',') 281 if (*t == delim)
234 n++; 282 n++;
283
235 ret = (char **)malloc ((n + 1) * sizeof (char *)); 284 ret = (char **)malloc ((n + 1) * sizeof (char *));
236 ret[n] = NULL; 285 ret[n] = NULL;
237 286
238 for (l = 0, t = s; l < n; l++) 287 for (l = 0, t = s; l < n; l++)
239 { 288 {
240 for ( ; *t && *t != ','; t++) ; 289 for (; *t && *t != delim; t++)
241 p = t - s; 290 ;
242 ret[l] = (char *)malloc (p + 1); 291 *t = '\0';
243 strncpy (ret[l], s, p);
244 ret[l][p] = '\0'; 292 ret[l] = s;
245 rxvt_Str_trim (ret[l]); 293 rxvt_strtrim (ret[l]);
246 s = ++t; 294 s = ++t;
247 } 295 }
296
248 return ret; 297 return ret;
249} 298}
250 299
251/*----------------------------------------------------------------------* 300void *
252 * file searching 301rxvt_malloc (size_t size)
253 */
254
255/* #define DEBUG_SEARCH_PATH */
256
257#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
258/*
259 * search for FILE in the current working directory, and within the
260 * colon-delimited PATHLIST, adding the file extension EXT if required.
261 *
262 * FILE is either semi-colon or zero terminated
263 */
264/* INTPROTO */
265char *
266rxvt_File_search_path (const char *pathlist, const char *file, const char *ext)
267{ 302{
268 int maxpath, len; 303 void *p = malloc (size);
269 const char *p, *path;
270 char name[256];
271 304
272 if (!access (file, R_OK)) /* found (plain name) in current directory */
273 return STRDUP (file);
274
275 /* semi-colon delimited */
276 if ((p = STRCHR (file, ';')))
277 len = (p - file);
278 else
279 len = STRLEN (file);
280
281#ifdef DEBUG_SEARCH_PATH
282 getcwd (name, sizeof (name));
283 fprintf (stderr, "pwd: \"%s\"\n", name);
284 fprintf (stderr, "find: \"%.*s\"\n", len, file);
285#endif
286
287 /* leave room for an extra '/' and trailing '\0' */
288 maxpath = sizeof (name) - (len + (ext ? STRLEN (ext) : 0) + 2);
289 if (maxpath <= 0)
290 return NULL;
291
292 /* check if we can find it now */
293 STRNCPY (name, file, len);
294 name[len] = '\0';
295
296 if (!access (name, R_OK))
297 return STRDUP (name);
298 if (ext)
299 {
300 STRCAT (name, ext);
301 if (!access (name, R_OK))
302 return STRDUP (name);
303 }
304 for (path = pathlist; path != NULL && *path != '\0'; path = p)
305 {
306 int n;
307
308 /* colon delimited */
309 if ((p = STRCHR (path, ':')) == NULL)
310 p = STRCHR (path, '\0');
311
312 n = (p - path);
313 if (*p != '\0')
314 p++;
315
316 if (n > 0 && n <= maxpath)
317 {
318 STRNCPY (name, path, n);
319 if (name[n - 1] != '/')
320 name[n++] = '/';
321 name[n] = '\0';
322 STRNCAT (name, file, len);
323
324 if (!access (name, R_OK))
325 return STRDUP (name);
326 if (ext)
327 {
328 STRCAT (name, ext);
329 if (!access (name, R_OK))
330 return STRDUP (name);
331 }
332 }
333 }
334 return NULL;
335}
336
337/* EXTPROTO */
338char *
339rxvt_File_find (const char *file, const char *ext, const char *path)
340{
341 char *f;
342
343 if (file == NULL || *file == '\0')
344 return NULL;
345
346 /* search environment variables here too */
347 if ((f = rxvt_File_search_path (path, file, ext)) == NULL)
348#ifdef PATH_ENV
349 if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL)
350#endif
351 f = rxvt_File_search_path (getenv ("PATH"), file, ext);
352
353#ifdef DEBUG_SEARCH_PATH
354 if (f) 305 if (!p)
355 fprintf (stderr, "found: \"%s\"\n", f); 306 rxvt_fatal ("memory allocation failure. aborting.\n");
356#endif
357 307
358 return f; 308 return p;
359} 309}
360#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
361 310
362/*----------------------------------------------------------------------*
363 * miscellaneous drawing routines
364 */
365
366/*
367 * Draw top/left and bottom/right border shadows around windows
368 */
369#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
370/* EXTPROTO */
371void 311void *
372rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) 312rxvt_calloc (size_t number, size_t size)
373{ 313{
374 int shadow; 314 void *p = calloc (number, size);
375 315
376 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 316 if (!p)
377 w += x - 1; 317 rxvt_fatal ("memory allocation failure. aborting.\n");
378 h += y - 1;
379 for (; shadow-- > 0; x++, y++, w--, h--)
380 {
381 XDrawLine (display, win, topShadow, x, y, w, y);
382 XDrawLine (display, win, topShadow, x, y, x, h);
383 XDrawLine (display, win, botShadow, w, h, w, y + 1);
384 XDrawLine (display, win, botShadow, w, h, x + 1, h);
385 }
386}
387#endif
388 318
389/* button shapes */ 319 return p;
390#ifdef MENUBAR 320}
391/* EXTPROTO */ 321
392void 322void *
393rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) 323rxvt_realloc (void *ptr, size_t size)
394{ 324{
395 switch (type) 325 void *p = realloc (ptr, size);
396 {
397 case 'r': /* right triangle */
398 XDrawLine (display, win, topShadow, x, y, x, y + w);
399 XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2);
400 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2);
401 break;
402 326
403 case 'l': /* left triangle */ 327 if (!p)
404 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); 328 rxvt_fatal ("memory allocation failure. aborting.\n");
405 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2);
406 XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y);
407 break;
408 329
409 case 'd': /* down triangle */ 330 return p;
410 XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w);
411 XDrawLine (display, win, topShadow, x, y, x + w, y);
412 XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w);
413 break;
414
415 case 'u': /* up triangle */
416 XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y);
417 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w);
418 XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y);
419 break;
420#if 0
421 case 's': /* square */
422 XDrawLine (display, win, topShadow, x + w, y, x, y);
423 XDrawLine (display, win, topShadow, x, y, x, y + w);
424 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w);
425 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y);
426 break;
427#endif
428
429 }
430} 331}
431#endif 332
432/*----------------------- end-of-file (C source) -----------------------*/ 333KeySym
334rxvt_XKeycodeToKeysym (Display *dpy, KeyCode code, int index)
335{
336 int size;
337 KeySym *mapping = XGetKeyboardMapping (dpy, code, 1, &size);
338 KeySym keysym = IN_RANGE_EXC (index, 0, size) ? mapping[index] : NoSymbol;
339 XFree (mapping);
340 return keysym;
341}

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