2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
3 * Copyright (c) 2007 Mans Rullgard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
32 int av_strstart(const char *str, const char *pfx, const char **ptr)
34 while (*pfx && *pfx == *str) {
43 int av_stristart(const char *str, const char *pfx, const char **ptr)
45 while (*pfx && toupper((unsigned)*pfx) == toupper((unsigned)*str)) {
54 char *av_stristr(const char *s1, const char *s2)
57 return (char*)(intptr_t)s1;
60 if (av_stristart(s1, s2, NULL))
61 return (char*)(intptr_t)s1;
67 size_t av_strlcpy(char *dst, const char *src, size_t size)
70 while (++len < size && *src)
74 return len + strlen(src) - 1;
77 size_t av_strlcat(char *dst, const char *src, size_t size)
79 size_t len = strlen(dst);
81 return len + strlen(src);
82 return len + av_strlcpy(dst + len, src, size - len);
85 size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
87 int len = strlen(dst);
91 len += vsnprintf(dst + len, size > len ? size - len : 0, fmt, vl);
97 char *av_asprintf(const char *fmt, ...)
104 len = vsnprintf(NULL, 0, fmt, va);
109 p = av_malloc(len + 1);
114 len = vsnprintf(p, len + 1, fmt, va);
123 char *av_d2str(double d)
125 char *str= av_malloc(16);
126 if(str) snprintf(str, 16, "%f", d);
130 #define WHITESPACES " \n\t"
132 char *av_get_token(const char **buf, const char *term)
134 char *out = av_malloc(strlen(*buf) + 1);
135 char *ret= out, *end= out;
136 const char *p = *buf;
137 if (!out) return NULL;
138 p += strspn(p, WHITESPACES);
140 while(*p && !strspn(p, term)) {
146 while(*p && *p != '\'')
159 }while(out >= end && strspn(out, WHITESPACES));
166 char *av_strtok(char *s, const char *delim, char **saveptr)
170 if (!s && !(s = *saveptr))
173 /* skip leading delimiters */
174 s += strspn(s, delim);
176 /* s now points to the first non delimiter char, or to the end of the string */
183 /* skip non delimiters */
184 s += strcspn(s, delim);
195 int av_strcasecmp(const char *a, const char *b)
199 c1 = av_tolower(*a++);
200 c2 = av_tolower(*b++);
201 } while (c1 && c1 == c2);
205 int av_strncasecmp(const char *a, const char *b, size_t n)
207 const char *end = a + n;
210 c1 = av_tolower(*a++);
211 c2 = av_tolower(*b++);
212 } while (a < end && c1 && c1 == c2);
216 const char *av_basename(const char *path)
218 char *p = strrchr(path, '/');
221 char *q = strrchr(path, '\\');
222 char *d = strchr(path, ':');
233 const char *av_dirname(char *path)
235 char *p = strrchr(path, '/');
238 char *q = strrchr(path, '\\');
239 char *d = strchr(path, ':');
263 printf("Testing av_get_token()\n");
265 const char *strings[] = {
281 "'foo : ' :blahblah",
287 " foo bar : blahblah",
289 "'foo : \\ \\ ' : blahblah",
290 "'\\fo\\o:': blahblah",
291 "\\'fo\\o\\:': foo ' :blahblah"
294 for (i=0; i < FF_ARRAY_ELEMS(strings); i++) {
295 const char *p = strings[i];
298 q = av_get_token(&p, ":");
299 printf(" -> |%s|", q);
300 printf(" + |%s|\n", p);