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
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)
60 if (av_stristart(s1, s2, NULL))
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_d2str(double d)
99 char *str= av_malloc(16);
100 if(str) snprintf(str, 16, "%f", d);
104 #define WHITESPACES " \n\t"
106 char *av_get_token(const char **buf, const char *term)
108 char *out = av_malloc(strlen(*buf) + 1);
109 char *ret= out, *end= out;
110 const char *p = *buf;
111 if (!out) return NULL;
112 p += strspn(p, WHITESPACES);
114 while(*p && !strspn(p, term)) {
120 while(*p && *p != '\'')
133 }while(out >= end && strspn(out, WHITESPACES));
140 int av_strcasecmp(const char *a, const char *b)
144 c1 = av_tolower(*a++);
145 c2 = av_tolower(*b++);
146 } while (c1 && c1 == c2);
150 int av_strncasecmp(const char *a, const char *b, size_t n)
152 const char *end = a + n;
155 c1 = av_tolower(*a++);
156 c2 = av_tolower(*b++);
157 } while (a < end && c1 && c1 == c2);
161 const char *av_basename(const char *path)
163 char *p = strrchr(path, '/');
166 char *q = strrchr(path, '\\');
167 char *d = strchr(path, ':');
178 const char *av_dirname(char *path)
180 char *p = strrchr(path, '/');
183 char *q = strrchr(path, '\\');
184 char *d = strchr(path, ':');
208 printf("Testing av_get_token()\n");
210 const char *strings[] = {
226 "'foo : ' :blahblah",
232 " foo bar : blahblah",
234 "'foo : \\ \\ ' : blahblah",
235 "'\\fo\\o:': blahblah",
236 "\\'fo\\o\\:': foo ' :blahblah"
239 for (i=0; i < FF_ARRAY_ELEMS(strings); i++) {
240 const char *p = strings[i], *q;
242 q = av_get_token(&p, ":");
243 printf(" -> |%s|", q);
244 printf(" + |%s|\n", p);