1
0
mirror of https://github.com/mpv-player/mpv synced 2024-12-23 23:32:26 +00:00
mpv/bstr.h
Uoti Urpala 28b3cc0efe bstr.h: change BSTR() from macro to inline function
Change BSTR() from a macro producing a compound literal to an inline
function returning the same value. This works for all existing uses,
and avoids a warning from BSTR(NULL) (the macro expansion contained
strlen(NULL); this was valid code because the strlen call was never
evaluated, but still triggered a GCC warning).
2011-04-24 03:05:24 +03:00

87 lines
2.6 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_BSTR_H
#define MPLAYER_BSTR_H
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <stdbool.h>
#include "talloc.h"
/* NOTE: 'len' is size_t, but most string-handling functions below assume
* that input size has been sanity checked and len fits in an int.
*/
struct bstr {
unsigned char *start;
size_t len;
};
int bstrcmp(struct bstr str1, struct bstr str2);
int bstrcasecmp(struct bstr str1, struct bstr str2);
int bstrchr(struct bstr str, int c);
int bstrrchr(struct bstr str, int c);
int bstr_find(struct bstr haystack, struct bstr needle);
struct bstr *bstr_splitlines(void *talloc_ctx, struct bstr str);
struct bstr bstr_strip(struct bstr str);
struct bstr bstr_split(struct bstr str, char *sep, struct bstr *rest);
struct bstr bstr_splice(struct bstr str, int start, int end);
long long bstrtoll(struct bstr str, struct bstr *rest, int base);
void bstr_lower(struct bstr str);
static inline struct bstr bstr_cut(struct bstr str, int n)
{
return (struct bstr){str.start + n, str.len - n};
}
static inline bool bstr_startswith(struct bstr str, struct bstr prefix)
{
if (str.len < prefix.len)
return false;
return !memcmp(str.start, prefix.start, prefix.len);
}
// demux_rtp.cpp (live555) C++ compilation workaround
#ifndef __cplusplus
static inline char *bstrdup0(void *talloc_ctx, struct bstr str)
{
return talloc_strndup(talloc_ctx, (char *)str.start, str.len);
}
static inline struct bstr bstrdup(void *talloc_ctx, struct bstr str)
{
struct bstr r = { talloc_strndup(talloc_ctx, str.start, str.len), str.len };
return r;
}
static inline struct bstr BSTR(const unsigned char *s)
{
return (struct bstr){(unsigned char *)s, s ? strlen(s) : 0};
}
#endif
// create a pair (not single value!) for "%.*s" printf syntax
#define BSTR_P(bstr) (int)((bstr).len), (bstr).start
#define WHITESPACE " \f\n\r\t\v"
#endif /* MPLAYER_BSTR_H */