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/*
* This file is part of the XForms library package.
*
* XForms is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1, or
* (at your option) any later version.
*
* XForms 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with XForms. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* \file space.c
*
* Copyright(c) 1993,1994 by T.C. Zhao
* All rights reserved.
*
* Remove unescaped leadingi/trailing spaces from a string.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "include/forms.h"
#include "flinternal.h"
#include "ulib.h"
/***************************************
* Remove leading space
***************************************/
char *
fli_de_space( char * s )
{
char *p;
/* Not all isspace considers '\t' a white space */
for ( p = s; p && ( isspace( ( unsigned char ) *p ) || *p == '\t' ); p++ )
/* empty */ ;
return p == s ? s : memmove( s, p, strlen( p ) + 1 );
}
/***************************************
* remove trailing space
***************************************/
char *
fli_space_de( char * s )
{
char *p,
*q;
if ( ! s || ! *s )
return s;
q = p = s + strlen( s ) - 1;
/* maybe replace \ with space ? */
for ( q--;
p >= s && isspace( ( unsigned char ) *p ) && ( q < s || *q != '\\' );
p--,q-- )
/* empty */ ;
*++p = '\0';
return s;
}
/***************************************
* Remove space from both ends
***************************************/
char *
fli_de_space_de( char * p )
{
return fli_space_de( fli_de_space( p ) );
}
/***************************************
* remove non-alphanumericals from string
***************************************/
char *
fli_nuke_all_non_alnum( char * s )
{
char *p = s,
*q = s + strlen( s ),
*b;
char buf[ 1024 ];
for ( b = buf; p < q; p++ )
if ( isalnum( ( unsigned char ) *p ) )
*b++ = *p;
*b = '\0';
return strcpy( s, buf );
}
/*
* Local variables:
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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