blob: e47fec74e4ccfa100cff62981d4133f40a1f5810 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) many different people.
* If you wrote this, please acknowledge your work.
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
char* FAST_FUNC trim(char *s)
{
size_t len = strlen(s);
size_t old = len;
/* trim trailing whitespace */
while (len && isspace(s[len-1]))
--len;
/* trim leading whitespace */
if (len) {
char *nws = skip_whitespace(s);
if ((nws - s) != 0) {
len -= (nws - s);
memmove(s, nws, len);
}
}
s += len;
/* If it was a "const char*" which does not need trimming,
* avoid superfluous store */
if (old != len)
*s = '\0';
return s;
}
|
