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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.7 by pcg, Fri Feb 13 12:16:21 2004 UTC vs.
Revision 1.55 by sf-exg, Mon Jan 10 14:07:19 2011 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) 2003-2006 Marc Lehmann <pcg@goof.com>
9 * 10 *
10 * 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
11 * 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
12 * the Free Software Foundation; either version 2 of the License, or 13 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version. 14 * (at your option) any later version.
… …
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *----------------------------------------------------------------------*/ 24 *----------------------------------------------------------------------*/
24 25
25#include "../config.h" /* NECESSARY */ 26#include "../config.h" /* NECESSARY */
26#include "rxvt.h" /* NECESSARY */ 27#include "rxvt.h" /* NECESSARY */
27#include "misc.intpro" /* PROTOS for internal routines */
28 28
29/* EXTPROTO */
30char * 29char *
31rxvt_strdup (const char *str) 30rxvt_wcstombs (const wchar_t *str, int len)
32{ 31{
33 return str ? strdup (str) : 0; 32 if (len < 0) len = wcslen (str);
34}
35 33
36/* EXTPROTO */ 34 mbstate mbs;
37char * 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
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 *
38rxvt_r_basename (const char *str) 171rxvt_basename (const char *str) NOTHROW
39{ 172{
40 char *base = STRRCHR (str, '/'); 173 const char *base = strrchr (str, '/');
41 174
42 return (char *) (base ? base + 1 : str); 175 return base ? base + 1 : str;
43} 176}
44 177
45/* 178/*
46 * Print an error message 179 * Print an error message
47 */ 180 */
48/* EXTPROTO */
49void 181void
50rxvt_print_error (const char *fmt,...) 182rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
51{ 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
196{
52 va_list arg_ptr; 197 va_list arg_ptr;
53 198
54 va_start (arg_ptr, fmt); 199 va_start (arg_ptr, fmt);
55 fprintf (stderr, APL_NAME ": "); 200 rxvt_vlog (fmt, arg_ptr);
56 vfprintf (stderr, fmt, arg_ptr);
57 fprintf (stderr, "\n");
58 va_end (arg_ptr); 201 va_end (arg_ptr);
59} 202}
60 203
61/* 204/*
62 * check that the first characters of S1 match S2 205 * Print an error message
63 *
64 * No Match
65 * return: 0
66 * Match
67 * return: STRLEN (S2)
68 */ 206 */
69/* EXTPROTO */ 207void
70int 208rxvt_warn (const char *fmt,...) NOTHROW
71rxvt_Str_match (const char *s1, const char *s2)
72{ 209{
73 int n = STRLEN (s2); 210 va_list arg_ptr;
74 211
75 return ((STRNCMP (s1, s2, n) == 0) ? n : 0); 212 rxvt_log ("%s: ", RESNAME);
76}
77 213
78/* EXTPROTO */ 214 va_start (arg_ptr, fmt);
79const char * 215 rxvt_vlog (fmt, arg_ptr);
80rxvt_Str_skip_space (const char *str) 216 va_end (arg_ptr);
217}
218
219void
220rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
81{ 221{
82 if (str) 222 va_list arg_ptr;
83 while (*str && isspace (*str)) 223
84 str++; 224 rxvt_log ("%s: ", RESNAME);
85 return str; 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);
86} 238}
87 239
88/* 240/*
89 * remove leading/trailing space and strip-off leading/trailing quotes. 241 * remove leading/trailing space in place.
90 * in place.
91 */ 242 */
92/* EXTPROTO */ 243char *
93char *
94rxvt_Str_trim (char *str) 244rxvt_strtrim (char *str) NOTHROW
95{ 245{
96 char *r, *s; 246 char *r, *s;
97 int n;
98 247
99 if (!str || !*str) /* shortcut */ 248 if (!str || !*str) /* shortcut */
100 return str; 249 return str;
101 250
102 /* skip leading spaces */ 251 /* skip leading spaces */
103 for (s = str; *s && isspace (*s); s++) ; 252 for (s = str; *s && isspace (*s); s++) ;
253
104 /* goto end of string */ 254 /* goto end of string */
105 for (n = 0, r = s; *r++; n++) ; 255 r = s + strlen (s) - 1;
106 r -= 2; 256
107 /* dump return */ 257 /* dump return and other trailing whitespace */
108 if (n > 0 && *r == '\n') 258 while (r > s && isspace (*r))
109 n--, r--; 259 r--;
110 /* backtrack along trailing spaces */ 260
111 for (; n > 0 && isspace (*r); r--, n--) ; 261 memmove (str, s, r + 1 - s);
112 /* skip matching leading/trailing quotes */ 262 str[r + 1 - s] = 0;
113 if (*s == '"' && *r == '"' && n > 1)
114 {
115 s++;
116 n -= 2;
117 }
118 /* copy back over: forwards copy */
119 for (r = str; n; n--)
120 *r++ = *s++;
121 *r = '\0';
122 263
123 return str; 264 return str;
124} 265}
125 266
126/* 267/*
127 * in-place interpretation of string: 268 * Split a string into an array based on the given delimiter, stripping leading and
128 * 269 * trailing spaces from each entry. Empty strings are properly returned
129 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
130 * Ctrl chars: ^@ .. ^_, ^?
131 *
132 * Emacs-style: "M-" prefix
133 *
134 * Also,
135 * "M-x" prefixed strings, append "\r" if needed
136 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
137 *
138 * returns the converted string length
139 */ 270 */
140/* EXTPROTO */ 271char **
141int 272rxvt_strsplit (char delim, const char *str) NOTHROW
142rxvt_Str_escaped (char *str)
143{ 273{
144 char ch, *s, *d; 274 int l, n;
145 int i, num, append = 0; 275 char *s, *t;
276 char **ret;
146 277
147 if (!str || !*str) 278 s = strdup (str ? str : "");
148 return 0;
149
150 d = s = str;
151
152 if (*s == 'M' && s[1] == '-')
153 {
154 /* Emacs convenience, replace leading `M-..' with `\E..' */
155 *d++ = C0_ESC;
156 s += 2;
157 if (toupper (*s) == 'X')
158 /* append carriage-return for `M-xcommand' */
159 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
160 }
161 for (; (ch = *s++);)
162 {
163 if (ch == '\\')
164 {
165 ch = *s++;
166 if (ch >= '0' && ch <= '7')
167 { /* octal */
168 num = ch - '0';
169 for (i = 0; i < 2; i++, s++)
170 {
171 ch = *s;
172 if (ch < '0' || ch > '7')
173 break;
174 num = num * 8 + ch - '0';
175 }
176 ch = (char)num;
177 }
178 else if (ch == 'a')
179 ch = C0_BEL; /* bell */
180 else if (ch == 'b')
181 ch = C0_BS; /* backspace */
182 else if (ch == 'E' || ch == 'e')
183 ch = C0_ESC; /* escape */
184 else if (ch == 'n')
185 ch = '\n'; /* newline */
186 else if (ch == 'r')
187 ch = '\r'; /* carriage-return */
188 else if (ch == 't')
189 ch = C0_HT; /* tab */
190 }
191 else if (ch == '^')
192 {
193 ch = *s++;
194 ch = toupper (ch);
195 ch = (ch == '?' ? 127 : (ch - '@'));
196 }
197 *d++ = ch;
198 }
199
200 /* ESC] is an XTerm escape sequence, must be terminated */
201 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
202 append = CHAR_ST;
203
204 /* add trailing character as required */
205 if (append && d[-1] != append)
206 *d++ = append;
207 *d = '\0';
208
209 return (d - str);
210}
211
212/*
213 * Split a comma-separated string into an array, stripping leading and
214 * trailing spaces (and paired quotes) from each entry. Empty strings
215 * are properly returned
216 * Caller should free each entry and array when done
217 */
218/* EXTPROTO */
219char **
220rxvt_splitcommastring (const char *cs)
221{
222 int l, n, p;
223 const char *s, *t;
224 char **ret;
225
226 if ((s = cs) == NULL)
227 s = "";
228 279
229 for (n = 1, t = s; *t; t++) 280 for (n = 1, t = s; *t; t++)
230 if (*t == ',') 281 if (*t == delim)
231 n++; 282 n++;
283
232 ret = (char **)malloc ((n + 1) * sizeof (char *)); 284 ret = (char **)malloc ((n + 1) * sizeof (char *));
233 ret[n] = NULL; 285 ret[n] = NULL;
234 286
235 for (l = 0, t = s; l < n; l++) 287 for (l = 0, t = s; l < n; l++)
236 { 288 {
237 for ( ; *t && *t != ','; t++) ; 289 for (; *t && *t != delim; t++)
238 p = t - s; 290 ;
239 ret[l] = (char *)malloc (p + 1); 291 *t = '\0';
240 strncpy (ret[l], s, p);
241 ret[l][p] = '\0'; 292 ret[l] = s;
242 rxvt_Str_trim (ret[l]); 293 rxvt_strtrim (ret[l]);
243 s = ++t; 294 s = ++t;
244 } 295 }
296
245 return ret; 297 return ret;
246} 298}
247 299
248/*----------------------------------------------------------------------* 300void *
249 * file searching 301rxvt_malloc (size_t size)
250 */
251
252/* #define DEBUG_SEARCH_PATH */
253
254#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
255/*
256 * search for FILE in the current working directory, and within the
257 * colon-delimited PATHLIST, adding the file extension EXT if required.
258 *
259 * FILE is either semi-colon or zero terminated
260 */
261/* INTPROTO */
262char *
263rxvt_File_search_path (const char *pathlist, const char *file, const char *ext)
264{ 302{
265 int maxpath, len; 303 void *p = malloc (size);
266 const char *p, *path;
267 char name[256];
268 304
269 if (!access (file, R_OK)) /* found (plain name) in current directory */
270 return STRDUP (file);
271
272 /* semi-colon delimited */
273 if ((p = STRCHR (file, ';')))
274 len = (p - file);
275 else
276 len = STRLEN (file);
277
278#ifdef DEBUG_SEARCH_PATH
279 getcwd (name, sizeof (name));
280 fprintf (stderr, "pwd: \"%s\"\n", name);
281 fprintf (stderr, "find: \"%.*s\"\n", len, file);
282#endif
283
284 /* leave room for an extra '/' and trailing '\0' */
285 maxpath = sizeof (name) - (len + (ext ? STRLEN (ext) : 0) + 2);
286 if (maxpath <= 0)
287 return NULL;
288
289 /* check if we can find it now */
290 STRNCPY (name, file, len);
291 name[len] = '\0';
292
293 if (!access (name, R_OK))
294 return STRDUP (name);
295 if (ext)
296 {
297 STRCAT (name, ext);
298 if (!access (name, R_OK))
299 return STRDUP (name);
300 }
301 for (path = pathlist; path != NULL && *path != '\0'; path = p)
302 {
303 int n;
304
305 /* colon delimited */
306 if ((p = STRCHR (path, ':')) == NULL)
307 p = STRCHR (path, '\0');
308
309 n = (p - path);
310 if (*p != '\0')
311 p++;
312
313 if (n > 0 && n <= maxpath)
314 {
315 STRNCPY (name, path, n);
316 if (name[n - 1] != '/')
317 name[n++] = '/';
318 name[n] = '\0';
319 STRNCAT (name, file, len);
320
321 if (!access (name, R_OK))
322 return STRDUP (name);
323 if (ext)
324 {
325 STRCAT (name, ext);
326 if (!access (name, R_OK))
327 return STRDUP (name);
328 }
329 }
330 }
331 return NULL;
332}
333
334/* EXTPROTO */
335char *
336rxvt_File_find (const char *file, const char *ext, const char *path)
337{
338 char *f;
339
340 if (file == NULL || *file == '\0')
341 return NULL;
342
343 /* search environment variables here too */
344 if ((f = rxvt_File_search_path (path, file, ext)) == NULL)
345#ifdef PATH_ENV
346 if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL)
347#endif
348 f = rxvt_File_search_path (getenv ("PATH"), file, ext);
349
350#ifdef DEBUG_SEARCH_PATH
351 if (f) 305 if (!p)
352 fprintf (stderr, "found: \"%s\"\n", f); 306 rxvt_fatal ("memory allocation failure. aborting.\n");
353#endif
354 307
355 return f; 308 return p;
356} 309}
357#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
358 310
359/*----------------------------------------------------------------------*
360 * miscellaneous drawing routines
361 */
362
363/*
364 * Draw top/left and bottom/right border shadows around windows
365 */
366#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
367/* EXTPROTO */
368void 311void *
369rxvt_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)
370{ 313{
371 int shadow; 314 void *p = calloc (number, size);
372 315
373 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 316 if (!p)
374 w += x - 1; 317 rxvt_fatal ("memory allocation failure. aborting.\n");
375 h += y - 1;
376 for (; shadow-- > 0; x++, y++, w--, h--)
377 {
378 XDrawLine (display, win, topShadow, x, y, w, y);
379 XDrawLine (display, win, topShadow, x, y, x, h);
380 XDrawLine (display, win, botShadow, w, h, w, y + 1);
381 XDrawLine (display, win, botShadow, w, h, x + 1, h);
382 }
383}
384#endif
385 318
386/* button shapes */ 319 return p;
387#ifdef MENUBAR 320}
388/* EXTPROTO */ 321
389void 322void *
390rxvt_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)
391{ 324{
392 switch (type) 325 void *p = realloc (ptr, size);
393 {
394 case 'r': /* right triangle */
395 XDrawLine (display, win, topShadow, x, y, x, y + w);
396 XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2);
397 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2);
398 break;
399 326
400 case 'l': /* left triangle */ 327 if (!p)
401 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); 328 rxvt_fatal ("memory allocation failure. aborting.\n");
402 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2);
403 XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y);
404 break;
405 329
406 case 'd': /* down triangle */ 330 return p;
407 XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w);
408 XDrawLine (display, win, topShadow, x, y, x + w, y);
409 XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w);
410 break;
411
412 case 'u': /* up triangle */
413 XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y);
414 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w);
415 XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y);
416 break;
417#if 0
418 case 's': /* square */
419 XDrawLine (display, win, topShadow, x + w, y, x, y);
420 XDrawLine (display, win, topShadow, x, y, x, y + w);
421 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w);
422 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y);
423 break;
424#endif
425
426 }
427} 331}
428#endif
429/*----------------------- end-of-file (C source) -----------------------*/

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