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/* 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;
}
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