mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-11-30 07:00:48 +00:00
38 lines
697 B
C
38 lines
697 B
C
/* 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;
|
|
}
|