mirror of https://github.com/mpv-player/mpv
143 lines
3.5 KiB
C
143 lines
3.5 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.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <libavutil/avutil.h>
|
|
#include <assert.h>
|
|
|
|
#include "talloc.h"
|
|
|
|
#include "bstr.h"
|
|
|
|
int bstrcmp(struct bstr str1, struct bstr str2)
|
|
{
|
|
int ret = memcmp(str1.start, str2.start, FFMIN(str1.len, str2.len));
|
|
|
|
if (!ret) {
|
|
if (str1.len == str2.len)
|
|
return 0;
|
|
else if (str1.len > str2.len)
|
|
return 1;
|
|
else
|
|
return -1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int bstrcasecmp(struct bstr str1, struct bstr str2)
|
|
{
|
|
int ret = strncasecmp(str1.start, str2.start, FFMIN(str1.len, str2.len));
|
|
|
|
if (!ret) {
|
|
if (str1.len == str2.len)
|
|
return 0;
|
|
else if (str1.len > str2.len)
|
|
return 1;
|
|
else
|
|
return -1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int bstrchr(struct bstr str, int c)
|
|
{
|
|
for (int i = 0; i < str.len; i++)
|
|
if (str.start[i] == c)
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
struct bstr bstr_strip(struct bstr str)
|
|
{
|
|
while (str.len && isspace(*str.start)) {
|
|
str.start++;
|
|
str.len--;
|
|
}
|
|
while (str.len && isspace(str.start[str.len - 1]))
|
|
str.len--;
|
|
return str;
|
|
}
|
|
|
|
struct bstr bstr_split(struct bstr str, char *sep, struct bstr *rest)
|
|
{
|
|
int start, end;
|
|
for (start = 0; start < str.len; start++)
|
|
if (!strchr(sep, str.start[start]))
|
|
break;
|
|
for (end = start; end < str.len; end++)
|
|
if (strchr(sep, str.start[end]))
|
|
break;
|
|
if (rest) {
|
|
*rest = bstr_cut(str, end);
|
|
}
|
|
str.start += start;
|
|
str.len = end - start;
|
|
return str;
|
|
}
|
|
|
|
|
|
struct bstr bstr_splice(struct bstr str, int start, int end)
|
|
{
|
|
if (start < 0)
|
|
start += str.len;
|
|
if (end < 0)
|
|
end += str.len;
|
|
end = FFMIN(end, str.len);
|
|
start = FFMAX(start, 0);
|
|
if (start >= end)
|
|
return (struct bstr){NULL, 0};
|
|
str.start += start;
|
|
str.len = end - start;
|
|
return str;
|
|
}
|
|
|
|
long long bstrtoll(struct bstr str, struct bstr *rest, int base)
|
|
{
|
|
char buf[51];
|
|
int len = FFMIN(str.len, 50);
|
|
memcpy(buf, str.start, len);
|
|
buf[len] = 0;
|
|
char *endptr;
|
|
long long r = strtoll(buf, &endptr, base);
|
|
if (rest)
|
|
*rest = bstr_cut(str, endptr - buf);
|
|
return r;
|
|
}
|
|
|
|
struct bstr *bstr_splitlines(void *talloc_ctx, struct bstr str)
|
|
{
|
|
if (str.len == 0)
|
|
return NULL;
|
|
int count = 0;
|
|
for (int i = 0; i < str.len; i++)
|
|
if (str.start[i] == '\n')
|
|
count++;
|
|
if (str.start[str.len - 1] != '\n')
|
|
count++;
|
|
struct bstr *r = talloc_array_ptrtype(talloc_ctx, r, count);
|
|
unsigned char *p = str.start;
|
|
for (int i = 0; i < count - 1; i++) {
|
|
r[i].start = p;
|
|
while (*p++ != '\n');
|
|
r[i].len = p - r[i].start;
|
|
}
|
|
r[count - 1].start = p;
|
|
r[count - 1].len = str.start + str.len - p;
|
|
return r;
|
|
}
|