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Revision: 1.44
Committed: Mon Sep 3 07:31:12 2007 UTC (16 years, 8 months ago) by ayin
Content type: text/plain
Branch: MAIN
Changes since 1.43: +1 -11 lines
Log Message:
Remove dead code and fix comment.

File Contents

# User Rev Content
1 root 1.40 /*----------------------------------------------------------------------*
2 pcg 1.13 * File: misc.C
3 pcg 1.1 *----------------------------------------------------------------------*
4     *
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
7     * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
8     * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com>
9 root 1.39 * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com>
10 pcg 1.1 *
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
13     * the Free Software Foundation; either version 2 of the License, or
14     * (at your option) any later version.
15     *
16     * This program is distributed in the hope that it will be useful,
17     * but WITHOUT ANY WARRANTY; without even the implied warranty of
18     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19     * GNU General Public License for more details.
20     *
21     * You should have received a copy of the GNU General Public License
22     * along with this program; if not, write to the Free Software
23     * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24     *----------------------------------------------------------------------*/
25    
26     #include "../config.h" /* NECESSARY */
27     #include "rxvt.h" /* NECESSARY */
28    
29 pcg 1.3 char *
30 pcg 1.10 rxvt_wcstombs (const wchar_t *str, int len)
31     {
32 root 1.19 if (len < 0) len = wcslen (str);
33    
34 pcg 1.10 mbstate mbs;
35     char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1);
36    
37     char *dst = r;
38     while (len--)
39     {
40 root 1.24 ssize_t l = wcrtomb (dst, *str++, mbs);
41 root 1.31
42 pcg 1.10 if (l < 0)
43     *dst++ = '?';
44     else
45     dst += l;
46     }
47    
48     *dst++ = 0;
49    
50 root 1.24 return (char *)rxvt_realloc (r, dst - r);
51 pcg 1.10 }
52    
53 root 1.19 wchar_t *
54     rxvt_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 root 1.24 if ((ssize_t)mbstowcs (r, str, len + 1) < 0)
61 root 1.19 *r = 0;
62    
63     return r;
64     }
65    
66     char *
67     rxvt_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 root 1.22 unicode_t w = *str++ & UNICODE_MASK;
77 root 1.19
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 root 1.24 *p++ = 0;
97 root 1.19
98 root 1.24 return (char *)rxvt_realloc (r, p - r);
99 root 1.19 }
100    
101     wchar_t *
102     rxvt_utf8towcs (const char *str, int len)
103     {
104     if (len < 0) len = strlen (str);
105    
106 root 1.21 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)),
107     *p = r;
108 root 1.19
109 root 1.21 unsigned char *s = (unsigned char *)str,
110     *e = s + len;
111 root 1.19
112 root 1.21 for (;;)
113 root 1.19 {
114 root 1.21 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 root 1.19 && s[0] >= 0xc2 && s[0] <= 0xdf
122     && (s[1] & 0xc0) == 0x80)
123     {
124     *p++ = ((s[0] & 0x1f) << 6)
125     | (s[1] & 0x3f);
126 root 1.21 s += 2;
127 root 1.19 }
128 root 1.21 else if (len >= 3
129 root 1.19 && ( (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 root 1.21 s += 3;
140 root 1.19 }
141 root 1.21 else if (len >= 4
142 root 1.19 && ( (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 root 1.21 s += 4;
154 root 1.19 }
155     else
156     {
157     *p++ = 0xfffd;
158 root 1.21 s++;
159 root 1.19 }
160     }
161    
162     *p = 0;
163    
164     return r;
165     }
166    
167 pcg 1.10 char *
168 root 1.36 rxvt_r_basename (const char *str) NOTHROW
169 pcg 1.1 {
170 root 1.15 char *base = strrchr (str, '/');
171 pcg 1.1
172 pcg 1.7 return (char *) (base ? base + 1 : str);
173 pcg 1.1 }
174    
175     /*
176     * Print an error message
177     */
178     void
179 root 1.36 rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
180 pcg 1.12 {
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    
191     void
192 root 1.36 rxvt_log (const char *fmt,...) NOTHROW
193 pcg 1.1 {
194 pcg 1.8 va_list arg_ptr;
195 pcg 1.1
196 pcg 1.7 va_start (arg_ptr, fmt);
197 pcg 1.12 rxvt_vlog (fmt, arg_ptr);
198 pcg 1.7 va_end (arg_ptr);
199 pcg 1.1 }
200    
201     /*
202 pcg 1.12 * Print an error message
203     */
204     void
205 root 1.36 rxvt_warn (const char *fmt,...) NOTHROW
206 pcg 1.12 {
207     va_list arg_ptr;
208    
209     rxvt_log ("%s: ", RESNAME);
210    
211     va_start (arg_ptr, fmt);
212     rxvt_vlog (fmt, arg_ptr);
213     va_end (arg_ptr);
214     }
215    
216     void
217 root 1.36 rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
218 pcg 1.12 {
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    
230     void
231 root 1.36 rxvt_exit_failure () THROW ((class rxvt_failure_exception))
232 pcg 1.12 {
233 root 1.36 static class rxvt_failure_exception rxvt_failure_exception;
234 pcg 1.12 throw (rxvt_failure_exception);
235     }
236    
237     /*
238 ayin 1.44 * remove leading/trailing space in place.
239 pcg 1.1 */
240     char *
241 root 1.36 rxvt_Str_trim (char *str) NOTHROW
242 pcg 1.1 {
243 pcg 1.8 char *r, *s;
244 pcg 1.1
245 pcg 1.5 if (!str || !*str) /* shortcut */
246     return str;
247 pcg 1.1
248 pcg 1.5 /* skip leading spaces */
249 pcg 1.7 for (s = str; *s && isspace (*s); s++) ;
250 root 1.25
251 pcg 1.5 /* goto end of string */
252 root 1.25 r = s + strlen (s) - 1;
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 pcg 1.1
261 pcg 1.5 return str;
262 pcg 1.1 }
263    
264     /*
265     * in-place interpretation of string:
266     *
267     * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
268     * Ctrl chars: ^@ .. ^_, ^?
269     *
270     * Emacs-style: "M-" prefix
271     *
272     * Also,
273     * "M-x" prefixed strings, append "\r" if needed
274     * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
275     *
276     * returns the converted string length
277     */
278     int
279 root 1.36 rxvt_Str_escaped (char *str) NOTHROW
280 pcg 1.1 {
281 pcg 1.5 char ch, *s, *d;
282     int i, num, append = 0;
283 pcg 1.1
284 pcg 1.5 if (!str || !*str)
285     return 0;
286 pcg 1.1
287 pcg 1.5 d = s = str;
288 pcg 1.1
289 pcg 1.5 if (*s == 'M' && s[1] == '-')
290     {
291     /* Emacs convenience, replace leading `M-..' with `\E..' */
292     *d++ = C0_ESC;
293     s += 2;
294 pcg 1.7 if (toupper (*s) == 'X')
295 pcg 1.5 /* append carriage-return for `M-xcommand' */
296 pcg 1.7 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
297 pcg 1.1 }
298 pcg 1.5 for (; (ch = *s++);)
299     {
300     if (ch == '\\')
301     {
302     ch = *s++;
303     if (ch >= '0' && ch <= '7')
304     { /* octal */
305     num = ch - '0';
306     for (i = 0; i < 2; i++, s++)
307     {
308     ch = *s;
309     if (ch < '0' || ch > '7')
310     break;
311     num = num * 8 + ch - '0';
312     }
313     ch = (char)num;
314     }
315     else if (ch == 'a')
316     ch = C0_BEL; /* bell */
317     else if (ch == 'b')
318     ch = C0_BS; /* backspace */
319     else if (ch == 'E' || ch == 'e')
320     ch = C0_ESC; /* escape */
321     else if (ch == 'n')
322     ch = '\n'; /* newline */
323     else if (ch == 'r')
324     ch = '\r'; /* carriage-return */
325     else if (ch == 't')
326     ch = C0_HT; /* tab */
327     }
328     else if (ch == '^')
329     {
330     ch = *s++;
331 pcg 1.7 ch = toupper (ch);
332 pcg 1.5 ch = (ch == '?' ? 127 : (ch - '@'));
333     }
334     *d++ = ch;
335 pcg 1.1 }
336    
337 pcg 1.5 /* ESC] is an XTerm escape sequence, must be terminated */
338     if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
339     append = CHAR_ST;
340    
341     /* add trailing character as required */
342     if (append && d[-1] != append)
343     *d++ = append;
344     *d = '\0';
345 pcg 1.1
346 pcg 1.5 return (d - str);
347 pcg 1.1 }
348    
349     /*
350     * Split a comma-separated string into an array, stripping leading and
351 root 1.25 * trailing spaces from each entry. Empty strings are properly returned
352 pcg 1.1 * Caller should free each entry and array when done
353     */
354     char **
355 root 1.36 rxvt_splitcommastring (const char *cs) NOTHROW
356 pcg 1.1 {
357 pcg 1.5 int l, n, p;
358     const char *s, *t;
359     char **ret;
360    
361     if ((s = cs) == NULL)
362     s = "";
363    
364     for (n = 1, t = s; *t; t++)
365     if (*t == ',')
366     n++;
367 root 1.25
368 pcg 1.7 ret = (char **)malloc ((n + 1) * sizeof (char *));
369 pcg 1.5 ret[n] = NULL;
370    
371     for (l = 0, t = s; l < n; l++)
372     {
373     for ( ; *t && *t != ','; t++) ;
374     p = t - s;
375 pcg 1.7 ret[l] = (char *)malloc (p + 1);
376     strncpy (ret[l], s, p);
377 pcg 1.5 ret[l][p] = '\0';
378 pcg 1.7 rxvt_Str_trim (ret[l]);
379 pcg 1.5 s = ++t;
380 pcg 1.1 }
381 root 1.25
382 pcg 1.5 return ret;
383 pcg 1.1 }
384    
385 root 1.16 void
386 root 1.36 rxvt_freecommastring (char **cs) NOTHROW
387 root 1.16 {
388     for (int i = 0; cs[i]; ++i)
389     free (cs[i]);
390    
391     free (cs);
392     }
393    
394 pcg 1.1
395 root 1.28