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
);