ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/misc.C
(Generate patch)

Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.4 by pcg, Sat Jan 31 03:27:45 2004 UTC vs.
Revision 1.50 by ayin, Tue Dec 18 01:36:24 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) 2003-2006 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 *dst++ = '?';
44 else
45 dst += l;
46 }
47
48 *dst++ = 0;
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
63 return r;
64}
65
66char *
67rxvt_wcstoutf8 (const wchar_t *str, int len)
68{
69 if (len < 0) len = wcslen (str);
70
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
167char *
38rxvt_r_basename(const char *str) 168rxvt_basename (const char *str) NOTHROW
39{ 169{
40 char *base = STRRCHR(str, '/'); 170 char *base = strrchr (str, '/');
41 171
42 return (char *)(base ? base + 1 : str); 172 return (char *) (base ? base + 1 : str);
43} 173}
44 174
45/* 175/*
46 * Print an error message 176 * Print an error message
47 */ 177 */
48/* EXTPROTO */
49void 178void
50rxvt_print_error(const char *fmt,...) 179rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
51{ 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
193{
52 va_list arg_ptr; 194 va_list arg_ptr;
53 195
54 va_start(arg_ptr, fmt); 196 va_start (arg_ptr, fmt);
55 fprintf(stderr, APL_NAME ": "); 197 rxvt_vlog (fmt, arg_ptr);
56 vfprintf(stderr, fmt, arg_ptr);
57 fprintf(stderr, "\n");
58 va_end(arg_ptr); 198 va_end (arg_ptr);
59} 199}
60 200
61/* 201/*
62 * check that the first characters of S1 match S2 202 * Print an error message
63 *
64 * No Match
65 * return: 0
66 * Match
67 * return: STRLEN (S2)
68 */ 203 */
69/* EXTPROTO */ 204void
70int 205rxvt_warn (const char *fmt,...) NOTHROW
71rxvt_Str_match(const char *s1, const char *s2)
72{ 206{
73 int n = STRLEN(s2); 207 va_list arg_ptr;
74 208
75 return ((STRNCMP(s1, s2, n) == 0) ? n : 0); 209 rxvt_log ("%s: ", RESNAME);
76}
77 210
78/* EXTPROTO */ 211 va_start (arg_ptr, fmt);
79const char * 212 rxvt_vlog (fmt, arg_ptr);
80rxvt_Str_skip_space(const char *str) 213 va_end (arg_ptr);
214}
215
216void
217rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
81{ 218{
82 if (str) 219 va_list arg_ptr;
83 while (*str && isspace(*str)) 220
84 str++; 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);
235}
236
237/*
238 * remove leading/trailing space in place.
239 */
240char *
241rxvt_strtrim (char *str) NOTHROW
242{
243 char *r, *s;
244
245 if (!str || !*str) /* shortcut */
85 return str; 246 return str;
86}
87 247
88/*
89 * remove leading/trailing space and strip-off leading/trailing quotes.
90 * in place.
91 */
92/* EXTPROTO */
93char *
94rxvt_Str_trim(char *str)
95{
96 char *r, *s;
97 int n;
98
99 if (!str || !*str) /* shortcut */
100 return str;
101
102/* skip leading spaces */ 248 /* skip leading spaces */
103 for (s = str; *s && isspace(*s); s++) ; 249 for (s = str; *s && isspace (*s); s++) ;
250
104/* goto end of string */ 251 /* goto end of string */
105 for (n = 0, r = s; *r++; n++) ; 252 r = s + strlen (s) - 1;
106 r -= 2;
107/* dump return */
108 if (n > 0 && *r == '\n')
109 n--, r--;
110/* backtrack along trailing spaces */
111 for (; n > 0 && isspace(*r); r--, n--) ;
112/* skip matching leading/trailing quotes */
113 if (*s == '"' && *r == '"' && n > 1) {
114 s++;
115 n -= 2;
116 }
117/* copy back over: forwards copy */
118 for (r = str; n; n--)
119 *r++ = *s++;
120 *r = '\0';
121 253
254 /* dump return and other trailing whitespace */
255 while (r > s && isspace (*r))
256 r--;
257
258 memmove (str, s, r + 1 - s);
259 str[r + 1 - s] = 0;
260
122 return str; 261 return str;
123}
124
125/*
126 * in-place interpretation of string:
127 *
128 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
129 * Ctrl chars: ^@ .. ^_, ^?
130 *
131 * Emacs-style: "M-" prefix
132 *
133 * Also,
134 * "M-x" prefixed strings, append "\r" if needed
135 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
136 *
137 * returns the converted string length
138 */
139/* EXTPROTO */
140int
141rxvt_Str_escaped(char *str)
142{
143 char ch, *s, *d;
144 int i, num, append = 0;
145
146 if (!str || !*str)
147 return 0;
148
149 d = s = str;
150
151 if (*s == 'M' && s[1] == '-') {
152 /* Emacs convenience, replace leading `M-..' with `\E..' */
153 *d++ = C0_ESC;
154 s += 2;
155 if (toupper(*s) == 'X')
156 /* append carriage-return for `M-xcommand' */
157 for (*d++ = 'x', append = '\r', s++; isspace(*s); s++) ;
158 }
159 for (; (ch = *s++);) {
160 if (ch == '\\') {
161 ch = *s++;
162 if (ch >= '0' && ch <= '7') { /* octal */
163 num = ch - '0';
164 for (i = 0; i < 2; i++, s++) {
165 ch = *s;
166 if (ch < '0' || ch > '7')
167 break;
168 num = num * 8 + ch - '0';
169 }
170 ch = (char)num;
171 } else if (ch == 'a')
172 ch = C0_BEL; /* bell */
173 else if (ch == 'b')
174 ch = C0_BS; /* backspace */
175 else if (ch == 'E' || ch == 'e')
176 ch = C0_ESC; /* escape */
177 else if (ch == 'n')
178 ch = '\n'; /* newline */
179 else if (ch == 'r')
180 ch = '\r'; /* carriage-return */
181 else if (ch == 't')
182 ch = C0_HT; /* tab */
183 } else if (ch == '^') {
184 ch = *s++;
185 ch = toupper(ch);
186 ch = (ch == '?' ? 127 : (ch - '@'));
187 }
188 *d++ = ch;
189 }
190
191/* ESC] is an XTerm escape sequence, must be terminated */
192 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
193 append = CHAR_ST;
194
195/* add trailing character as required */
196 if (append && d[-1] != append)
197 *d++ = append;
198 *d = '\0';
199
200 return (d - str);
201} 262}
202 263
203/* 264/*
204 * Split a comma-separated string into an array, stripping leading and 265 * Split a comma-separated string into an array, stripping leading and
205 * trailing spaces (and paired quotes) from each entry. Empty strings 266 * trailing spaces from each entry. Empty strings are properly returned
206 * are properly returned
207 * Caller should free each entry and array when done
208 */ 267 */
209/* EXTPROTO */ 268char **
210char **
211rxvt_splitcommastring(const char *cs) 269rxvt_splitcommastring (const char *cs) NOTHROW
212{ 270{
213 int l, n, p; 271 int l, n, p;
214 const char *s, *t; 272 const char *s, *t;
215 char **ret; 273 char **ret;
216 274
217 if ((s = cs) == NULL) 275 if ((s = cs) == NULL)
218 s = ""; 276 s = "";
219 277
220 for (n = 1, t = s; *t; t++) 278 for (n = 1, t = s; *t; t++)
221 if (*t == ',') 279 if (*t == ',')
222 n++; 280 n++;
281
223 ret = (char **)malloc((n + 1) * sizeof(char *)); 282 ret = (char **)malloc ((n + 1) * sizeof (char *));
224 ret[n] = NULL; 283 ret[n] = NULL;
225 284
226 for (l = 0, t = s; l < n; l++) { 285 for (l = 0, t = s; l < n; l++)
286 {
227 for ( ; *t && *t != ','; t++) ; 287 for ( ; *t && *t != ','; t++) ;
228 p = t - s; 288 p = t - s;
229 ret[l] = (char *)malloc(p + 1); 289 ret[l] = (char *)malloc (p + 1);
230 strncpy(ret[l], s, p); 290 strncpy (ret[l], s, p);
231 ret[l][p] = '\0'; 291 ret[l][p] = '\0';
232 rxvt_Str_trim(ret[l]); 292 rxvt_strtrim (ret[l]);
233 s = ++t; 293 s = ++t;
234 } 294 }
295
235 return ret; 296 return ret;
236} 297}
237 298
238/*----------------------------------------------------------------------* 299void
239 * file searching 300rxvt_freecommastring (char **cs) NOTHROW
240 */
241
242/* #define DEBUG_SEARCH_PATH */
243
244#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
245/*
246 * search for FILE in the current working directory, and within the
247 * colon-delimited PATHLIST, adding the file extension EXT if required.
248 *
249 * FILE is either semi-colon or zero terminated
250 */
251/* INTPROTO */
252char *
253rxvt_File_search_path(const char *pathlist, const char *file, const char *ext)
254{ 301{
255 int maxpath, len; 302 for (int i = 0; cs[i]; ++i)
256 const char *p, *path; 303 free (cs[i]);
257 char name[256];
258 304
259 if (!access(file, R_OK)) /* found (plain name) in current directory */ 305 free (cs);
260 return STRDUP(file);
261
262/* semi-colon delimited */
263 if ((p = STRCHR(file, ';')))
264 len = (p - file);
265 else
266 len = STRLEN(file);
267
268#ifdef DEBUG_SEARCH_PATH
269 getcwd(name, sizeof(name));
270 fprintf(stderr, "pwd: \"%s\"\n", name);
271 fprintf(stderr, "find: \"%.*s\"\n", len, file);
272#endif
273
274/* leave room for an extra '/' and trailing '\0' */
275 maxpath = sizeof(name) - (len + (ext ? STRLEN(ext) : 0) + 2);
276 if (maxpath <= 0)
277 return NULL;
278
279/* check if we can find it now */
280 STRNCPY(name, file, len);
281 name[len] = '\0';
282
283 if (!access(name, R_OK))
284 return STRDUP(name);
285 if (ext) {
286 STRCAT(name, ext);
287 if (!access(name, R_OK))
288 return STRDUP(name);
289 }
290 for (path = pathlist; path != NULL && *path != '\0'; path = p) {
291 int n;
292
293 /* colon delimited */
294 if ((p = STRCHR(path, ':')) == NULL)
295 p = STRCHR(path, '\0');
296
297 n = (p - path);
298 if (*p != '\0')
299 p++;
300
301 if (n > 0 && n <= maxpath) {
302 STRNCPY(name, path, n);
303 if (name[n - 1] != '/')
304 name[n++] = '/';
305 name[n] = '\0';
306 STRNCAT(name, file, len);
307
308 if (!access(name, R_OK))
309 return STRDUP(name);
310 if (ext) {
311 STRCAT(name, ext);
312 if (!access(name, R_OK))
313 return STRDUP(name);
314 }
315 }
316 }
317 return NULL;
318} 306}
319 307
320/* EXTPROTO */ 308void *
321char * 309rxvt_malloc (size_t size)
322rxvt_File_find(const char *file, const char *ext, const char *path)
323{ 310{
324 char *f; 311 void *p = malloc (size);
325 312
326 if (file == NULL || *file == '\0') 313 if (!p)
327 return NULL; 314 rxvt_fatal ("memory allocation failure. aborting.\n");
328 315
329/* search environment variables here too */
330 if ((f = rxvt_File_search_path(path, file, ext)) == NULL)
331#ifdef PATH_ENV
332 if ((f = rxvt_File_search_path(getenv(PATH_ENV), file, ext)) == NULL)
333#endif
334 f = rxvt_File_search_path(getenv("PATH"), file, ext);
335
336#ifdef DEBUG_SEARCH_PATH
337 if (f)
338 fprintf(stderr, "found: \"%s\"\n", f);
339#endif
340
341 return f; 316 return p;
342} 317}
343#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
344 318
345/*----------------------------------------------------------------------*
346 * miscellaneous drawing routines
347 */
348
349/*
350 * Draw top/left and bottom/right border shadows around windows
351 */
352#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
353/* EXTPROTO */
354void 319void *
355rxvt_Draw_Shadow(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) 320rxvt_calloc (size_t number, size_t size)
356{ 321{
357 int shadow; 322 void *p = calloc (number, size);
358 323
359 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 324 if (!p)
360 w += x - 1; 325 rxvt_fatal ("memory allocation failure. aborting.\n");
361 h += y - 1;
362 for (; shadow-- > 0; x++, y++, w--, h--) {
363 XDrawLine(Xdisplay, win, topShadow, x, y, w, y);
364 XDrawLine(Xdisplay, win, topShadow, x, y, x, h);
365 XDrawLine(Xdisplay, win, botShadow, w, h, w, y + 1);
366 XDrawLine(Xdisplay, win, botShadow, w, h, x + 1, h);
367 }
368}
369#endif
370 326
371/* button shapes */ 327 return p;
372#ifdef MENUBAR 328}
373/* EXTPROTO */ 329
374void 330void *
375rxvt_Draw_Triangle(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) 331rxvt_realloc (void *ptr, size_t size)
376{ 332{
377 switch (type) { 333 void *p = realloc (ptr, size);
378 case 'r': /* right triangle */
379 XDrawLine(Xdisplay, win, topShadow, x, y, x, y + w);
380 XDrawLine(Xdisplay, win, topShadow, x, y, x + w, y + w / 2);
381 XDrawLine(Xdisplay, win, botShadow, x, y + w, x + w, y + w / 2);
382 break;
383 334
384 case 'l': /* left triangle */ 335 if (!p)
385 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w, y); 336 rxvt_fatal ("memory allocation failure. aborting.\n");
386 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x, y + w / 2);
387 XDrawLine(Xdisplay, win, topShadow, x, y + w / 2, x + w, y);
388 break;
389 337
390 case 'd': /* down triangle */ 338 return p;
391 XDrawLine(Xdisplay, win, topShadow, x, y, x + w / 2, y + w);
392 XDrawLine(Xdisplay, win, topShadow, x, y, x + w, y);
393 XDrawLine(Xdisplay, win, botShadow, x + w, y, x + w / 2, y + w);
394 break;
395
396 case 'u': /* up triangle */
397 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w / 2, y);
398 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x, y + w);
399 XDrawLine(Xdisplay, win, topShadow, x, y + w, x + w / 2, y);
400 break;
401#if 0
402 case 's': /* square */
403 XDrawLine(Xdisplay, win, topShadow, x + w, y, x, y);
404 XDrawLine(Xdisplay, win, topShadow, x, y, x, y + w);
405 XDrawLine(Xdisplay, win, botShadow, x, y + w, x + w, y + w);
406 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w, y);
407 break;
408#endif
409 }
410} 339}
411#endif
412/*----------------------- end-of-file (C source) -----------------------*/

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines