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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.10 by pcg, Sat Mar 6 00:05:01 2004 UTC vs.
Revision 1.45 by ayin, Sat Sep 8 20:55:49 2007 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 <pcg@goof.com>
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 2 of the License, or
14 * (at your option) any later version. 14 * (at your option) any later version.
… …
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_wcstombs (const wchar_t *str, int len) 30rxvt_wcstombs (const wchar_t *str, int len)
33{ 31{
32 if (len < 0) len = wcslen (str);
33
34 mbstate mbs; 34 mbstate mbs;
35 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1); 35 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1);
36 36
37 char *dst = r; 37 char *dst = r;
38 while (len--) 38 while (len--)
39 { 39 {
40 int l = wcrtomb (dst, *str++, mbs); 40 ssize_t l = wcrtomb (dst, *str++, mbs);
41
41 if (l < 0) 42 if (l < 0)
42 *dst++ = '?'; 43 *dst++ = '?';
43 else 44 else
44 dst += l; 45 dst += l;
45 } 46 }
46 47
47 *dst++ = 0; 48 *dst++ = 0;
48 49
50 return (char *)rxvt_realloc (r, dst - r);
51}
52
53wchar_t *
54rxvt_mbstowcs (const char *str, int len)
55{
56 if (len < 0) len = strlen (str);
57
58 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t));
59
60 if ((ssize_t)mbstowcs (r, str, len + 1) < 0)
61 *r = 0;
62
49 return r; 63 return r;
50} 64}
51 65
52/* EXTPROTO */
53char * 66char *
54rxvt_strdup (const char *str) 67rxvt_wcstoutf8 (const wchar_t *str, int len)
55{ 68{
56 return str ? strdup (str) : 0; 69 if (len < 0) len = wcslen (str);
57}
58 70
59/* EXTPROTO */ 71 char *r = (char *)rxvt_malloc (len * 4 + 1);
72 char *p = r;
73
74 while (len--)
75 {
76 unicode_t w = *str++ & UNICODE_MASK;
77
78 if (w < 0x000080)
79 *p++ = w;
80 else if (w < 0x000800)
81 *p++ = 0xc0 | ( w >> 6),
82 *p++ = 0x80 | ( w & 0x3f);
83 else if (w < 0x010000)
84 *p++ = 0xe0 | ( w >> 12 ),
85 *p++ = 0x80 | ((w >> 6) & 0x3f),
86 *p++ = 0x80 | ( w & 0x3f);
87 else if (w < 0x110000)
88 *p++ = 0xf0 | ( w >> 18),
89 *p++ = 0x80 | ((w >> 12) & 0x3f),
90 *p++ = 0x80 | ((w >> 6) & 0x3f),
91 *p++ = 0x80 | ( w & 0x3f);
92 else
93 *p++ = '?';
94 }
95
96 *p++ = 0;
97
98 return (char *)rxvt_realloc (r, p - r);
99}
100
101wchar_t *
102rxvt_utf8towcs (const char *str, int len)
103{
104 if (len < 0) len = strlen (str);
105
106 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)),
107 *p = r;
108
109 unsigned char *s = (unsigned char *)str,
110 *e = s + len;
111
112 for (;;)
113 {
114 len = e - s;
115
116 if (len == 0)
117 break;
118 else if (s[0] < 0x80)
119 *p++ = *s++;
120 else if (len >= 2
121 && s[0] >= 0xc2 && s[0] <= 0xdf
122 && (s[1] & 0xc0) == 0x80)
123 {
124 *p++ = ((s[0] & 0x1f) << 6)
125 | (s[1] & 0x3f);
126 s += 2;
127 }
128 else if (len >= 3
129 && ( (s[0] == 0xe0 && s[1] >= 0xa0 && s[1] <= 0xbf)
130 || (s[0] >= 0xe1 && s[0] <= 0xec && s[1] >= 0x80 && s[1] <= 0xbf)
131 || (s[0] == 0xed && s[1] >= 0x80 && s[1] <= 0x9f)
132 || (s[0] >= 0xee && s[0] <= 0xef && s[1] >= 0x80 && s[1] <= 0xbf)
133 )
134 && (s[2] & 0xc0) == 0x80)
135 {
136 *p++ = ((s[0] & 0x0f) << 12)
137 | ((s[1] & 0x3f) << 6)
138 | (s[2] & 0x3f);
139 s += 3;
140 }
141 else if (len >= 4
142 && ( (s[0] == 0xf0 && s[1] >= 0x90 && s[1] <= 0xbf)
143 || (s[0] >= 0xf1 && s[0] <= 0xf3 && s[1] >= 0x80 && s[1] <= 0xbf)
144 || (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f)
145 )
146 && (s[2] & 0xc0) == 0x80
147 && (s[3] & 0xc0) == 0x80)
148 {
149 *p++ = ((s[0] & 0x07) << 18)
150 | ((s[1] & 0x3f) << 12)
151 | ((s[2] & 0x3f) << 6)
152 | (s[3] & 0x3f);
153 s += 4;
154 }
155 else
156 {
157 *p++ = 0xfffd;
158 s++;
159 }
160 }
161
162 *p = 0;
163
164 return r;
165}
166
60char * 167char *
61rxvt_r_basename (const char *str) 168rxvt_r_basename (const char *str) NOTHROW
62{ 169{
63 char *base = STRRCHR (str, '/'); 170 char *base = strrchr (str, '/');
64 171
65 return (char *) (base ? base + 1 : str); 172 return (char *) (base ? base + 1 : str);
66} 173}
67 174
68/* 175/*
69 * Print an error message 176 * Print an error message
70 */ 177 */
71/* EXTPROTO */
72void 178void
73rxvt_print_error (const char *fmt,...) 179rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
180{
181 char msg[1024];
182
183 vsnprintf (msg, sizeof msg, fmt, arg_ptr);
184
185 if (GET_R && GET_R->log_hook)
186 (*GET_R->log_hook) (msg);
187 else
188 write (STDOUT_FILENO, msg, strlen (msg));
189}
190
191void
192rxvt_log (const char *fmt,...) NOTHROW
74{ 193{
75 va_list arg_ptr; 194 va_list arg_ptr;
76 195
77 va_start (arg_ptr, fmt); 196 va_start (arg_ptr, fmt);
78 fprintf (stderr, RESNAME ": "); 197 rxvt_vlog (fmt, arg_ptr);
79 vfprintf (stderr, fmt, arg_ptr);
80 fprintf (stderr, "\n");
81 va_end (arg_ptr); 198 va_end (arg_ptr);
82} 199}
83 200
84/* 201/*
85 * check that the first characters of S1 match S2 202 * Print an error message
86 *
87 * No Match
88 * return: 0
89 * Match
90 * return: STRLEN (S2)
91 */ 203 */
92/* EXTPROTO */ 204void
93int 205rxvt_warn (const char *fmt,...) NOTHROW
94rxvt_Str_match (const char *s1, const char *s2)
95{ 206{
96 int n = STRLEN (s2); 207 va_list arg_ptr;
97 208
98 return ((STRNCMP (s1, s2, n) == 0) ? n : 0); 209 rxvt_log ("%s: ", RESNAME);
99}
100 210
101/* EXTPROTO */ 211 va_start (arg_ptr, fmt);
102const char * 212 rxvt_vlog (fmt, arg_ptr);
103rxvt_Str_skip_space (const char *str) 213 va_end (arg_ptr);
104{ 214}
105 if (str)
106 while (*str && isspace (*str))
107 str++;
108 215
109 return str; 216void
217rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
218{
219 va_list arg_ptr;
220
221 rxvt_log ("%s: ", RESNAME);
222
223 va_start (arg_ptr, fmt);
224 rxvt_vlog (fmt, arg_ptr);
225 va_end (arg_ptr);
226
227 rxvt_exit_failure ();
228}
229
230void
231rxvt_exit_failure () THROW ((class rxvt_failure_exception))
232{
233 static class rxvt_failure_exception rxvt_failure_exception;
234 throw (rxvt_failure_exception);
110} 235}
111 236
112/* 237/*
113 * remove leading/trailing space and strip-off leading/trailing quotes. 238 * remove leading/trailing space in place.
114 * in place.
115 */ 239 */
116/* EXTPROTO */
117char * 240char *
118rxvt_Str_trim (char *str) 241rxvt_Str_trim (char *str) NOTHROW
119{ 242{
120 char *r, *s; 243 char *r, *s;
121 int n;
122 244
123 if (!str || !*str) /* shortcut */ 245 if (!str || !*str) /* shortcut */
124 return str; 246 return str;
125 247
126 /* skip leading spaces */ 248 /* skip leading spaces */
127 for (s = str; *s && isspace (*s); s++) ; 249 for (s = str; *s && isspace (*s); s++) ;
250
128 /* goto end of string */ 251 /* goto end of string */
129 for (n = 0, r = s; *r++; n++) ; 252 r = s + strlen (s) - 1;
130 r -= 2; 253
131 /* dump return */ 254 /* dump return and other trailing whitespace */
132 if (n > 0 && *r == '\n') 255 while (r > s && isspace (*r))
133 n--, r--; 256 r--;
134 /* backtrack along trailing spaces */
135 for (; n > 0 && isspace (*r); r--, n--) ;
136 /* skip matching leading/trailing quotes */
137 if (*s == '"' && *r == '"' && n > 1)
138 {
139 s++;
140 n -= 2;
141 }
142 257
143 /* copy back over: forwards copy */ 258 memmove (str, s, r + 1 - s);
144 for (r = str; n; n--) 259 str[r + 1 - s] = 0;
145 *r++ = *s++;
146 *r = '\0';
147 260
148 return str; 261 return str;
149}
150
151/*
152 * in-place interpretation of string:
153 *
154 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
155 * Ctrl chars: ^@ .. ^_, ^?
156 *
157 * Emacs-style: "M-" prefix
158 *
159 * Also,
160 * "M-x" prefixed strings, append "\r" if needed
161 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
162 *
163 * returns the converted string length
164 */
165/* EXTPROTO */
166int
167rxvt_Str_escaped (char *str)
168{
169 char ch, *s, *d;
170 int i, num, append = 0;
171
172 if (!str || !*str)
173 return 0;
174
175 d = s = str;
176
177 if (*s == 'M' && s[1] == '-')
178 {
179 /* Emacs convenience, replace leading `M-..' with `\E..' */
180 *d++ = C0_ESC;
181 s += 2;
182 if (toupper (*s) == 'X')
183 /* append carriage-return for `M-xcommand' */
184 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
185 }
186 for (; (ch = *s++);)
187 {
188 if (ch == '\\')
189 {
190 ch = *s++;
191 if (ch >= '0' && ch <= '7')
192 { /* octal */
193 num = ch - '0';
194 for (i = 0; i < 2; i++, s++)
195 {
196 ch = *s;
197 if (ch < '0' || ch > '7')
198 break;
199 num = num * 8 + ch - '0';
200 }
201 ch = (char)num;
202 }
203 else if (ch == 'a')
204 ch = C0_BEL; /* bell */
205 else if (ch == 'b')
206 ch = C0_BS; /* backspace */
207 else if (ch == 'E' || ch == 'e')
208 ch = C0_ESC; /* escape */
209 else if (ch == 'n')
210 ch = '\n'; /* newline */
211 else if (ch == 'r')
212 ch = '\r'; /* carriage-return */
213 else if (ch == 't')
214 ch = C0_HT; /* tab */
215 }
216 else if (ch == '^')
217 {
218 ch = *s++;
219 ch = toupper (ch);
220 ch = (ch == '?' ? 127 : (ch - '@'));
221 }
222 *d++ = ch;
223 }
224
225 /* ESC] is an XTerm escape sequence, must be terminated */
226 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
227 append = CHAR_ST;
228
229 /* add trailing character as required */
230 if (append && d[-1] != append)
231 *d++ = append;
232 *d = '\0';
233
234 return (d - str);
235} 262}
236 263
237/* 264/*
238 * Split a comma-separated string into an array, stripping leading and 265 * Split a comma-separated string into an array, stripping leading and
239 * trailing spaces (and paired quotes) from each entry. Empty strings 266 * trailing spaces from each entry. Empty strings are properly returned
240 * are properly returned
241 * Caller should free each entry and array when done 267 * Caller should free each entry and array when done
242 */ 268 */
243/* EXTPROTO */
244char ** 269char **
245rxvt_splitcommastring (const char *cs) 270rxvt_splitcommastring (const char *cs) NOTHROW
246{ 271{
247 int l, n, p; 272 int l, n, p;
248 const char *s, *t; 273 const char *s, *t;
249 char **ret; 274 char **ret;
250 275
… …
252 s = ""; 277 s = "";
253 278
254 for (n = 1, t = s; *t; t++) 279 for (n = 1, t = s; *t; t++)
255 if (*t == ',') 280 if (*t == ',')
256 n++; 281 n++;
282
257 ret = (char **)malloc ((n + 1) * sizeof (char *)); 283 ret = (char **)malloc ((n + 1) * sizeof (char *));
258 ret[n] = NULL; 284 ret[n] = NULL;
259 285
260 for (l = 0, t = s; l < n; l++) 286 for (l = 0, t = s; l < n; l++)
261 { 287 {
… …
265 strncpy (ret[l], s, p); 291 strncpy (ret[l], s, p);
266 ret[l][p] = '\0'; 292 ret[l][p] = '\0';
267 rxvt_Str_trim (ret[l]); 293 rxvt_Str_trim (ret[l]);
268 s = ++t; 294 s = ++t;
269 } 295 }
296
270 return ret; 297 return ret;
271} 298}
272 299
273/*----------------------------------------------------------------------*
274 * file searching
275 */
276
277/* #define DEBUG_SEARCH_PATH */
278
279#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
280/*
281 * search for FILE in the current working directory, and within the
282 * colon-delimited PATHLIST, adding the file extension EXT if required.
283 *
284 * FILE is either semi-colon or zero terminated
285 */
286/* INTPROTO */
287char *
288rxvt_File_search_path (const char *pathlist, const char *file, const char *ext)
289{
290 int maxpath, len;
291 const char *p, *path;
292 char name[256];
293
294 if (!access (file, R_OK)) /* found (plain name) in current directory */
295 return STRDUP (file);
296
297 /* semi-colon delimited */
298 if ((p = STRCHR (file, ';')))
299 len = (p - file);
300 else
301 len = STRLEN (file);
302
303#ifdef DEBUG_SEARCH_PATH
304 getcwd (name, sizeof (name));
305 fprintf (stderr, "pwd: \"%s\"\n", name);
306 fprintf (stderr, "find: \"%.*s\"\n", len, file);
307#endif
308
309 /* leave room for an extra '/' and trailing '\0' */
310 maxpath = sizeof (name) - (len + (ext ? STRLEN (ext) : 0) + 2);
311 if (maxpath <= 0)
312 return NULL;
313
314 /* check if we can find it now */
315 STRNCPY (name, file, len);
316 name[len] = '\0';
317
318 if (!access (name, R_OK))
319 return STRDUP (name);
320 if (ext)
321 {
322 STRCAT (name, ext);
323 if (!access (name, R_OK))
324 return STRDUP (name);
325 }
326 for (path = pathlist; path != NULL && *path != '\0'; path = p)
327 {
328 int n;
329
330 /* colon delimited */
331 if ((p = STRCHR (path, ':')) == NULL)
332 p = STRCHR (path, '\0');
333
334 n = (p - path);
335 if (*p != '\0')
336 p++;
337
338 if (n > 0 && n <= maxpath)
339 {
340 STRNCPY (name, path, n);
341 if (name[n - 1] != '/')
342 name[n++] = '/';
343 name[n] = '\0';
344 STRNCAT (name, file, len);
345
346 if (!access (name, R_OK))
347 return STRDUP (name);
348 if (ext)
349 {
350 STRCAT (name, ext);
351 if (!access (name, R_OK))
352 return STRDUP (name);
353 }
354 }
355 }
356 return NULL;
357}
358
359/* EXTPROTO */
360char *
361rxvt_File_find (const char *file, const char *ext, const char *path)
362{
363 char *f;
364
365 if (file == NULL || *file == '\0')
366 return NULL;
367
368 /* search environment variables here too */
369 if ((f = rxvt_File_search_path (path, file, ext)) == NULL)
370#ifdef PATH_ENV
371 if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL)
372#endif
373 f = rxvt_File_search_path (getenv ("PATH"), file, ext);
374
375#ifdef DEBUG_SEARCH_PATH
376 if (f)
377 fprintf (stderr, "found: \"%s\"\n", f);
378#endif
379
380 return f;
381}
382#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
383
384/*----------------------------------------------------------------------*
385 * miscellaneous drawing routines
386 */
387
388/*
389 * Draw top/left and bottom/right border shadows around windows
390 */
391#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
392/* EXTPROTO */
393void 300void
394rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) 301rxvt_freecommastring (char **cs) NOTHROW
395{ 302{
396 int shadow; 303 for (int i = 0; cs[i]; ++i)
304 free (cs[i]);
397 305
398 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 306 free (cs);
399 w += x - 1;
400 h += y - 1;
401 for (; shadow-- > 0; x++, y++, w--, h--)
402 {
403 XDrawLine (display, win, topShadow, x, y, w, y);
404 XDrawLine (display, win, topShadow, x, y, x, h);
405 XDrawLine (display, win, botShadow, w, h, w, y + 1);
406 XDrawLine (display, win, botShadow, w, h, x + 1, h);
407 }
408} 307}
409#endif
410 308
411/* button shapes */
412#ifdef MENUBAR
413/* EXTPROTO */
414void
415rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type)
416{
417 switch (type)
418 {
419 case 'r': /* right triangle */
420 XDrawLine (display, win, topShadow, x, y, x, y + w);
421 XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2);
422 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2);
423 break;
424 309
425 case 'l': /* left triangle */
426 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y);
427 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2);
428 XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y);
429 break;
430 310
431 case 'd': /* down triangle */
432 XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w);
433 XDrawLine (display, win, topShadow, x, y, x + w, y);
434 XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w);
435 break;
436
437 case 'u': /* up triangle */
438 XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y);
439 XDrawLine (display, win, botShadow, x + w, y + w, x, y + w);
440 XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y);
441 break;
442#if 0
443 case 's': /* square */
444 XDrawLine (display, win, topShadow, x + w, y, x, y);
445 XDrawLine (display, win, topShadow, x, y, x, y + w);
446 XDrawLine (display, win, botShadow, x, y + w, x + w, y + w);
447 XDrawLine (display, win, botShadow, x + w, y + w, x + w, y);
448 break;
449#endif
450
451 }
452}
453#endif
454/*----------------------- end-of-file (C source) -----------------------*/

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