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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.1 by pcg, Mon Nov 24 17:28:08 2003 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 * $Id: misc.C,v 1.1 2003/11/24 17:28:08 pcg Exp $
5 * 4 *
6 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
7 * 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
8 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> 7 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
9 * 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>
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 */ 29char *
31char * 30rxvt_wcstombs (const wchar_t *str, int len)
31{
32 if (len < 0) len = wcslen (str);
33
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
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 *
32rxvt_r_basename(const char *str) 171rxvt_basename (const char *str) NOTHROW
33{ 172{
34 char *base = STRRCHR(str, '/'); 173 const char *base = strrchr (str, '/');
35 174
36 return (char *)(base ? base + 1 : str); 175 return base ? base + 1 : str;
37} 176}
38 177
39/* 178/*
40 * Print an error message 179 * Print an error message
41 */ 180 */
42/* EXTPROTO */
43void 181void
44rxvt_print_error(const char *fmt,...) 182rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
45{ 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{
46 va_list arg_ptr; 197 va_list arg_ptr;
47 198
48 va_start(arg_ptr, fmt); 199 va_start (arg_ptr, fmt);
49 fprintf(stderr, APL_NAME ": "); 200 rxvt_vlog (fmt, arg_ptr);
50 vfprintf(stderr, fmt, arg_ptr);
51 fprintf(stderr, "\n");
52 va_end(arg_ptr); 201 va_end (arg_ptr);
53} 202}
54 203
55/* 204/*
56 * check that the first characters of S1 match S2 205 * Print an error message
57 *
58 * No Match
59 * return: 0
60 * Match
61 * return: STRLEN (S2)
62 */ 206 */
63/* EXTPROTO */ 207void
64int 208rxvt_warn (const char *fmt,...) NOTHROW
65rxvt_Str_match(const char *s1, const char *s2)
66{ 209{
67 int n = STRLEN(s2); 210 va_list arg_ptr;
68 211
69 return ((STRNCMP(s1, s2, n) == 0) ? n : 0); 212 rxvt_log ("%s: ", RESNAME);
70}
71 213
72/* EXTPROTO */ 214 va_start (arg_ptr, fmt);
73const char * 215 rxvt_vlog (fmt, arg_ptr);
74rxvt_Str_skip_space(const char *str) 216 va_end (arg_ptr);
217}
218
219void
220rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
75{ 221{
76 if (str) 222 va_list arg_ptr;
77 while (*str && isspace(*str)) 223
78 str++; 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);
238}
239
240/*
241 * remove leading/trailing space in place.
242 */
243char *
244rxvt_strtrim (char *str) NOTHROW
245{
246 char *r, *s;
247
248 if (!str || !*str) /* shortcut */
79 return str; 249 return str;
250
251 /* skip leading spaces */
252 for (s = str; *s && isspace (*s); s++) ;
253
254 /* goto end of string */
255 r = s + strlen (s) - 1;
256
257 /* dump return and other trailing whitespace */
258 while (r > s && isspace (*r))
259 r--;
260
261 memmove (str, s, r + 1 - s);
262 str[r + 1 - s] = 0;
263
264 return str;
80} 265}
81 266
82/* 267/*
83 * remove leading/trailing space and strip-off leading/trailing quotes. 268 * Split a string into an array based on the given delimiter, stripping leading and
84 * in place. 269 * trailing spaces from each entry. Empty strings are properly returned
85 */ 270 */
86/* EXTPROTO */ 271char **
87char * 272rxvt_strsplit (char delim, const char *str) NOTHROW
88rxvt_Str_trim(char *str)
89{ 273{
90 char *r, *s; 274 int l, n;
91 int n; 275 char *s, *t;
276 char **ret;
92 277
93 if (!str || !*str) /* shortcut */ 278 s = strdup (str ? str : "");
94 return str;
95 279
96/* skip leading spaces */
97 for (s = str; *s && isspace(*s); s++) ;
98/* goto end of string */
99 for (n = 0, r = s; *r++; n++) ; 280 for (n = 1, t = s; *t; t++)
100 r -= 2; 281 if (*t == delim)
101/* dump return */ 282 n++;
102 if (n > 0 && *r == '\n') 283
103 n--, r--; 284 ret = (char **)malloc ((n + 1) * sizeof (char *));
104/* backtrack along trailing spaces */ 285 ret[n] = NULL;
105 for (; n > 0 && isspace(*r); r--, n--) ; 286
106/* skip matching leading/trailing quotes */ 287 for (l = 0, t = s; l < n; l++)
107 if (*s == '"' && *r == '"' && n > 1) { 288 {
108 s++; 289 for (; *t && *t != delim; t++)
109 n -= 2; 290 ;
291 *t = '\0';
292 ret[l] = s;
293 rxvt_strtrim (ret[l]);
294 s = ++t;
110 } 295 }
111/* copy back over: forwards copy */
112 for (r = str; n; n--)
113 *r++ = *s++;
114 *r = '\0';
115 296
116 return str;
117}
118
119/*
120 * in-place interpretation of string:
121 *
122 * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
123 * Ctrl chars: ^@ .. ^_, ^?
124 *
125 * Emacs-style: "M-" prefix
126 *
127 * Also,
128 * "M-x" prefixed strings, append "\r" if needed
129 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
130 *
131 * returns the converted string length
132 */
133/* EXTPROTO */
134int
135rxvt_Str_escaped(char *str)
136{
137 char ch, *s, *d;
138 int i, num, append = 0;
139
140 if (!str || !*str)
141 return 0;
142
143 d = s = str;
144
145 if (*s == 'M' && s[1] == '-') {
146 /* Emacs convenience, replace leading `M-..' with `\E..' */
147 *d++ = C0_ESC;
148 s += 2;
149 if (toupper(*s) == 'X')
150 /* append carriage-return for `M-xcommand' */
151 for (*d++ = 'x', append = '\r', s++; isspace(*s); s++) ;
152 }
153 for (; (ch = *s++);) {
154 if (ch == '\\') {
155 ch = *s++;
156 if (ch >= '0' && ch <= '7') { /* octal */
157 num = ch - '0';
158 for (i = 0; i < 2; i++, s++) {
159 ch = *s;
160 if (ch < '0' || ch > '7')
161 break;
162 num = num * 8 + ch - '0';
163 }
164 ch = (char)num;
165 } else if (ch == 'a')
166 ch = C0_BEL; /* bell */
167 else if (ch == 'b')
168 ch = C0_BS; /* backspace */
169 else if (ch == 'E' || ch == 'e')
170 ch = C0_ESC; /* escape */
171 else if (ch == 'n')
172 ch = '\n'; /* newline */
173 else if (ch == 'r')
174 ch = '\r'; /* carriage-return */
175 else if (ch == 't')
176 ch = C0_HT; /* tab */
177 } else if (ch == '^') {
178 ch = *s++;
179 ch = toupper(ch);
180 ch = (ch == '?' ? 127 : (ch - '@'));
181 }
182 *d++ = ch;
183 }
184
185/* ESC] is an XTerm escape sequence, must be terminated */
186 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
187 append = CHAR_ST;
188
189/* add trailing character as required */
190 if (append && d[-1] != append)
191 *d++ = append;
192 *d = '\0';
193
194 return (d - str);
195}
196
197/*
198 * Split a comma-separated string into an array, stripping leading and
199 * trailing spaces (and paired quotes) from each entry. Empty strings
200 * are properly returned
201 * Caller should free each entry and array when done
202 */
203/* EXTPROTO */
204char **
205rxvt_splitcommastring(const char *cs)
206{
207 int l, n, p;
208 const char *s, *t;
209 char **ret;
210
211 if ((s = cs) == NULL)
212 s = "";
213
214 for (n = 1, t = s; *t; t++)
215 if (*t == ',')
216 n++;
217 ret = (char **)malloc((n + 1) * sizeof(char *));
218 ret[n] = NULL;
219
220 for (l = 0, t = s; l < n; l++) {
221 for ( ; *t && *t != ','; t++) ;
222 p = t - s;
223 ret[l] = (char *)malloc(p + 1);
224 strncpy(ret[l], s, p);
225 ret[l][p] = '\0';
226 rxvt_Str_trim(ret[l]);
227 s = ++t;
228 }
229 return ret; 297 return ret;
230} 298}
231 299
232/*----------------------------------------------------------------------* 300void *
233 * file searching 301rxvt_malloc (size_t size)
234 */
235
236/* #define DEBUG_SEARCH_PATH */
237
238#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
239/*
240 * search for FILE in the current working directory, and within the
241 * colon-delimited PATHLIST, adding the file extension EXT if required.
242 *
243 * FILE is either semi-colon or zero terminated
244 */
245/* INTPROTO */
246char *
247rxvt_File_search_path(const char *pathlist, const char *file, const char *ext)
248{ 302{
249 int maxpath, len; 303 void *p = malloc (size);
250 const char *p, *path;
251 char name[256];
252 304
253 if (!access(file, R_OK)) /* found (plain name) in current directory */ 305 if (!p)
254 return STRDUP(file); 306 rxvt_fatal ("memory allocation failure. aborting.\n");
255 307
256/* semi-colon delimited */
257 if ((p = STRCHR(file, ';')))
258 len = (p - file);
259 else
260 len = STRLEN(file);
261
262#ifdef DEBUG_SEARCH_PATH
263 getcwd(name, sizeof(name));
264 fprintf(stderr, "pwd: \"%s\"\n", name);
265 fprintf(stderr, "find: \"%.*s\"\n", len, file);
266#endif
267
268/* leave room for an extra '/' and trailing '\0' */
269 maxpath = sizeof(name) - (len + (ext ? STRLEN(ext) : 0) + 2);
270 if (maxpath <= 0)
271 return NULL;
272
273/* check if we can find it now */
274 STRNCPY(name, file, len);
275 name[len] = '\0';
276
277 if (!access(name, R_OK))
278 return STRDUP(name);
279 if (ext) {
280 STRCAT(name, ext);
281 if (!access(name, R_OK))
282 return STRDUP(name);
283 }
284 for (path = pathlist; path != NULL && *path != '\0'; path = p) {
285 int n;
286
287 /* colon delimited */
288 if ((p = STRCHR(path, ':')) == NULL)
289 p = STRCHR(path, '\0');
290
291 n = (p - path);
292 if (*p != '\0')
293 p++;
294
295 if (n > 0 && n <= maxpath) {
296 STRNCPY(name, path, n);
297 if (name[n - 1] != '/')
298 name[n++] = '/';
299 name[n] = '\0';
300 STRNCAT(name, file, len);
301
302 if (!access(name, R_OK))
303 return STRDUP(name);
304 if (ext) {
305 STRCAT(name, ext);
306 if (!access(name, R_OK))
307 return STRDUP(name);
308 }
309 }
310 }
311 return NULL;
312}
313
314/* EXTPROTO */
315char *
316rxvt_File_find(const char *file, const char *ext, const char *path)
317{
318 char *f;
319
320 if (file == NULL || *file == '\0')
321 return NULL;
322
323/* search environment variables here too */
324 if ((f = rxvt_File_search_path(path, file, ext)) == NULL)
325#ifdef PATH_ENV
326 if ((f = rxvt_File_search_path(getenv(PATH_ENV), file, ext)) == NULL)
327#endif
328 f = rxvt_File_search_path(getenv("PATH"), file, ext);
329
330#ifdef DEBUG_SEARCH_PATH
331 if (f)
332 fprintf(stderr, "found: \"%s\"\n", f);
333#endif
334
335 return f; 308 return p;
336} 309}
337#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
338 310
339/*----------------------------------------------------------------------*
340 * miscellaneous drawing routines
341 */
342
343/*
344 * Draw top/left and bottom/right border shadows around windows
345 */
346#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
347/* EXTPROTO */
348void 311void *
349rxvt_Draw_Shadow(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) 312rxvt_calloc (size_t number, size_t size)
350{ 313{
351 int shadow; 314 void *p = calloc (number, size);
352 315
353 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 316 if (!p)
354 w += x - 1; 317 rxvt_fatal ("memory allocation failure. aborting.\n");
355 h += y - 1;
356 for (; shadow-- > 0; x++, y++, w--, h--) {
357 XDrawLine(Xdisplay, win, topShadow, x, y, w, y);
358 XDrawLine(Xdisplay, win, topShadow, x, y, x, h);
359 XDrawLine(Xdisplay, win, botShadow, w, h, w, y + 1);
360 XDrawLine(Xdisplay, win, botShadow, w, h, x + 1, h);
361 }
362}
363#endif
364 318
365/* button shapes */ 319 return p;
366#ifdef MENUBAR 320}
367/* EXTPROTO */ 321
368void 322void *
369rxvt_Draw_Triangle(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) 323rxvt_realloc (void *ptr, size_t size)
370{ 324{
371 switch (type) { 325 void *p = realloc (ptr, size);
372 case 'r': /* right triangle */
373 XDrawLine(Xdisplay, win, topShadow, x, y, x, y + w);
374 XDrawLine(Xdisplay, win, topShadow, x, y, x + w, y + w / 2);
375 XDrawLine(Xdisplay, win, botShadow, x, y + w, x + w, y + w / 2);
376 break;
377 326
378 case 'l': /* left triangle */ 327 if (!p)
379 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w, y); 328 rxvt_fatal ("memory allocation failure. aborting.\n");
380 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x, y + w / 2);
381 XDrawLine(Xdisplay, win, topShadow, x, y + w / 2, x + w, y);
382 break;
383 329
384 case 'd': /* down triangle */ 330 return p;
385 XDrawLine(Xdisplay, win, topShadow, x, y, x + w / 2, y + w);
386 XDrawLine(Xdisplay, win, topShadow, x, y, x + w, y);
387 XDrawLine(Xdisplay, win, botShadow, x + w, y, x + w / 2, y + w);
388 break;
389
390 case 'u': /* up triangle */
391 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w / 2, y);
392 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x, y + w);
393 XDrawLine(Xdisplay, win, topShadow, x, y + w, x + w / 2, y);
394 break;
395#if 0
396 case 's': /* square */
397 XDrawLine(Xdisplay, win, topShadow, x + w, y, x, y);
398 XDrawLine(Xdisplay, win, topShadow, x, y, x, y + w);
399 XDrawLine(Xdisplay, win, botShadow, x, y + w, x + w, y + w);
400 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w, y);
401 break;
402#endif
403 }
404} 331}
405#endif
406/*----------------------- end-of-file (C source) -----------------------*/

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