busybox/libbb/trim.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 tarball for details.
 */

#include "libbb.h"

void FAST_FUNC trim(char *s)
{
	size_t len = strlen(s);
	size_t lws;

	/* trim trailing whitespace */
	while (len && isspace(s[len-1]))
		--len;

	/* trim leading whitespace */
	if (len) {
		lws = strspn(s, " \n\r\t\v");
		if (lws) {
			len -= lws;
			memmove(s, s + lws, len);
		}
	}
	s[len] = '\0';
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* Utility routines.
4	*
5	* Copyright (C) many different people.
6	* If you wrote this, please acknowledge your work.
7	*
8	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
9	*/
10
11	#include "libbb.h"
12
13	void FAST_FUNC trim(char *s)
14	{
15	size_t len = strlen(s);
16	size_t lws;
17
18	/* trim trailing whitespace */
19	while (len && isspace(s[len-1]))
20	--len;
21
22	/* trim leading whitespace */
23	if (len) {
24	lws = strspn(s, " \n\r\t\v");
25	if (lws) {
26	len -= lws;
27	memmove(s, s + lws, len);
28	}
29	}
30	s[len] = '\0';
31	}