2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
3 * Copyright (c) 2007 Mans Rullgard
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
33 int av_strstart(const char *str, const char *pfx, const char **ptr)
35 while (*pfx && *pfx == *str) {
44 int av_stristart(const char *str, const char *pfx, const char **ptr)
46 while (*pfx && toupper((unsigned)*pfx) == toupper((unsigned)*str)) {
55 char *av_stristr(const char *s1, const char *s2)
61 if (av_stristart(s1, s2, NULL))
68 char *av_strnstr(const char *haystack, const char *needle, size_t hay_length)
70 size_t needle_len = strlen(needle);
73 while (hay_length >= needle_len) {
75 if (!memcmp(haystack, needle, needle_len))
82 size_t av_strlcpy(char *dst, const char *src, size_t size)
85 while (++len < size && *src)
89 return len + strlen(src) - 1;
92 size_t av_strlcat(char *dst, const char *src, size_t size)
94 size_t len = strlen(dst);
96 return len + strlen(src);
97 return len + av_strlcpy(dst + len, src, size - len);
100 size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
102 int len = strlen(dst);
106 len += vsnprintf(dst + len, size > len ? size - len : 0, fmt, vl);
112 char *av_d2str(double d)
114 char *str = av_malloc(16);
116 snprintf(str, 16, "%f", d);
120 #define WHITESPACES " \n\t"
122 char *av_get_token(const char **buf, const char *term)
124 char *out = av_malloc(strlen(*buf) + 1);
125 char *ret = out, *end = out;
126 const char *p = *buf;
129 p += strspn(p, WHITESPACES);
131 while (*p && !strspn(p, term)) {
133 if (c == '\\' && *p) {
136 } else if (c == '\'') {
137 while (*p && *p != '\'')
150 while (out >= end && strspn(out, WHITESPACES));
157 int av_strcasecmp(const char *a, const char *b)
161 c1 = av_tolower(*a++);
162 c2 = av_tolower(*b++);
163 } while (c1 && c1 == c2);
167 int av_strncasecmp(const char *a, const char *b, size_t n)
169 const char *end = a + n;
172 c1 = av_tolower(*a++);
173 c2 = av_tolower(*b++);
174 } while (a < end && c1 && c1 == c2);
178 const char *av_basename(const char *path)
180 char *p = strrchr(path, '/');
183 char *q = strrchr(path, '\\');
184 char *d = strchr(path, ':');
195 const char *av_dirname(char *path)
197 char *p = strrchr(path, '/');
200 char *q = strrchr(path, '\\');
201 char *d = strchr(path, ':');
221 const char *strings[] = {
237 "'foo : ' :blahblah",
243 " foo bar : blahblah",
245 "'foo : \\ \\ ' : blahblah",
246 "'\\fo\\o:': blahblah",
247 "\\'fo\\o\\:': foo ' :blahblah"
250 printf("Testing av_get_token()\n");
251 for (i = 0; i < FF_ARRAY_ELEMS(strings); i++) {
252 const char *p = strings[i], *q;
254 q = av_get_token(&p, ":");
255 printf(" -> |%s|", q);
256 printf(" + |%s|\n", p);