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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.4 by pcg, Sat Jan 31 03:27:45 2004 UTC vs.
Revision 1.52 by root, Sat Apr 26 03:37:18 2008 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
170char *
38rxvt_r_basename(const char *str) 171rxvt_basename (const char *str) NOTHROW
39{ 172{
40 char *base = STRRCHR(str, '/'); 173 char *base = strrchr (str, '/');
41 174
42 return (char *)(base ? base + 1 : str); 175 return (char *) (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);
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 */
85 return str; 249 return str;
86}
87 250
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 */ 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;
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';
121 256
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
122 return str; 264 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} 265}
202 266
203/* 267/*
204 * Split a comma-separated string into an array, stripping leading and 268 * Split a comma-separated string into an array, stripping leading and
205 * trailing spaces (and paired quotes) from each entry. Empty strings 269 * 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 */ 270 */
209/* EXTPROTO */ 271char **
210char **
211rxvt_splitcommastring(const char *cs) 272rxvt_splitcommastring (const char *cs) NOTHROW
212{ 273{
213 int l, n, p; 274 int l, n, p;
214 const char *s, *t; 275 const char *s, *t;
215 char **ret; 276 char **ret;
216 277
217 if ((s = cs) == NULL) 278 if ((s = cs) == NULL)
218 s = ""; 279 s = "";
219 280
220 for (n = 1, t = s; *t; t++) 281 for (n = 1, t = s; *t; t++)
221 if (*t == ',') 282 if (*t == ',')
222 n++; 283 n++;
284
223 ret = (char **)malloc((n + 1) * sizeof(char *)); 285 ret = (char **)malloc ((n + 1) * sizeof (char *));
224 ret[n] = NULL; 286 ret[n] = NULL;
225 287
226 for (l = 0, t = s; l < n; l++) { 288 for (l = 0, t = s; l < n; l++)
289 {
227 for ( ; *t && *t != ','; t++) ; 290 for ( ; *t && *t != ','; t++) ;
228 p = t - s; 291 p = t - s;
229 ret[l] = (char *)malloc(p + 1); 292 ret[l] = (char *)malloc (p + 1);
230 strncpy(ret[l], s, p); 293 memcpy (ret[l], s, p);
231 ret[l][p] = '\0'; 294 ret[l][p] = '\0';
232 rxvt_Str_trim(ret[l]); 295 rxvt_strtrim (ret[l]);
233 s = ++t; 296 s = ++t;
234 } 297 }
298
235 return ret; 299 return ret;
236} 300}
237 301
238/*----------------------------------------------------------------------* 302void
239 * file searching 303rxvt_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{ 304{
255 int maxpath, len; 305 for (int i = 0; cs[i]; ++i)
256 const char *p, *path; 306 free (cs[i]);
257 char name[256];
258 307
259 if (!access(file, R_OK)) /* found (plain name) in current directory */ 308 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} 309}
319 310
320/* EXTPROTO */ 311void *
321char * 312rxvt_malloc (size_t size)
322rxvt_File_find(const char *file, const char *ext, const char *path)
323{ 313{
324 char *f; 314 void *p = malloc (size);
325 315
326 if (file == NULL || *file == '\0') 316 if (!p)
327 return NULL; 317 rxvt_fatal ("memory allocation failure. aborting.\n");
328 318
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; 319 return p;
342} 320}
343#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
344 321
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 322void *
355rxvt_Draw_Shadow(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) 323rxvt_calloc (size_t number, size_t size)
356{ 324{
357 int shadow; 325 void *p = calloc (number, size);
358 326
359 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 327 if (!p)
360 w += x - 1; 328 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
370 329
371/* button shapes */ 330 return p;
372#ifdef MENUBAR 331}
373/* EXTPROTO */ 332
374void 333void *
375rxvt_Draw_Triangle(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) 334rxvt_realloc (void *ptr, size_t size)
376{ 335{
377 switch (type) { 336 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;
383 337
384 case 'l': /* left triangle */ 338 if (!p)
385 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w, y); 339 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;
389 340
390 case 'd': /* down triangle */ 341 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} 342}
411#endif
412/*----------------------- end-of-file (C source) -----------------------*/

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