source: MondoRescue/branches/2.2.5/mindi-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 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");
        memmove(s, s + lws, len -= lws);
    }
    s[len] = '\0';
}