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/*
* rtrim.c
*
* $Id: rtrim.c,v 1.1.1.1 2006/04/11 17:56:16 source Exp $
*
* rtrim () -- Remove spaces & tabs from the right end of a string
*
* usage:
* char *rtrim (char *string)
* returns:
* pointer to character before terminating \0, or NULL if string
* was entirely blank
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2006 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*
*/
#include "libutil.h"
char *
rtrim (char *str)
{
char *endPtr;
if (str == NULL || *str == '\0')
return NULL;
for (endPtr = &str[strlen (str) - 1]; endPtr >= str && isspace((unsigned char)*endPtr); endPtr--)
;
endPtr[1] = 0;
return endPtr >= str ? endPtr : NULL;
}
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