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38 lines
697 B
C
38 lines
697 B
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routines.
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*
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* Copyright (C) many different people.
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* If you wrote this, please acknowledge your work.
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*
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* Licensed under GPLv2 or later, see file LICENSE in this source tree.
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*/
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#include "libbb.h"
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char* FAST_FUNC trim(char *s)
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{
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size_t len = strlen(s);
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size_t old = len;
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/* trim trailing whitespace */
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while (len && isspace(s[len-1]))
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--len;
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/* trim leading whitespace */
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if (len) {
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char *nws = skip_whitespace(s);
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if ((nws - s) != 0) {
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len -= (nws - s);
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memmove(s, nws, len);
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}
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}
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s += len;
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/* If it was a "const char*" which does not need trimming,
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* avoid superfluous store */
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if (old != len)
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*s = '\0';
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return s;
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}
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