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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "plstr.h"
#include <string.h>
PR_IMPLEMENT(char *)
PL_strchr(const char *s, char c)
{
if( (const char *)0 == s ) return (char *)0;
return strchr(s, c);
}
PR_IMPLEMENT(char *)
PL_strrchr(const char *s, char c)
{
if( (const char *)0 == s ) return (char *)0;
return strrchr(s, c);
}
PR_IMPLEMENT(char *)
PL_strnchr(const char *s, char c, PRUint32 n)
{
if( (const char *)0 == s ) return (char *)0;
for( ; n && *s; s++, n-- )
if( *s == c )
return (char *)s;
if( ((char)0 == c) && (n > 0) && ((char)0 == *s) ) return (char *)s;
return (char *)0;
}
PR_IMPLEMENT(char *)
PL_strnrchr(const char *s, char c, PRUint32 n)
{
const char *p;
if( (const char *)0 == s ) return (char *)0;
for( p = s; n && *p; p++, n-- )
;
if( ((char)0 == c) && (n > 0) && ((char)0 == *p) ) return (char *)p;
for( p--; p >= s; p-- )
if( *p == c )
return (char *)p;
return (char *)0;
}