/* -*- 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
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#include "plstr.h"
PR_IMPLEMENT(char *)
PL_strcasestr(const char *big, const char *little)
{
PRUint32 ll;
if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
ll = PL_strlen(little);
for( ; *big; big++ )
/* obvious improvement available here */
if( 0 == PL_strncasecmp(big, little, ll) )
return (char *)big;
return (char *)0;
}
PR_IMPLEMENT(char *)
PL_strcaserstr(const char *big, const char *little)
{
const char *p;
PRUint32 ll;
if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
ll = PL_strlen(little);
p = &big[ PL_strlen(big) - ll ];
if( p < big ) return (char *)0;
for( ; p >= big; p-- )
/* obvious improvement available here */
if( 0 == PL_strncasecmp(p, little, ll) )
return (char *)p;
return (char *)0;
}
PR_IMPLEMENT(char *)
PL_strncasestr(const char *big, const char *little, PRUint32 max)
{
PRUint32 ll;
if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
ll = PL_strlen(little);
if( ll > max ) return (char *)0;
max -= ll;
max++;
for( ; max && *big; big++, max-- )
/* obvious improvement available here */
if( 0 == PL_strncasecmp(big, little, ll) )
return (char *)big;
return (char *)0;
}
PR_IMPLEMENT(char *)
PL_strncaserstr(const char *big, const char *little, PRUint32 max)
{
const char *p;
PRUint32 ll;
if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
ll = PL_strlen(little);
for( p = big; max && *p; p++, max-- )
;
p -= ll;
if( p < big ) return (char *)0;
for( ; p >= big; p-- )
/* obvious improvement available here */
if( 0 == PL_strncasecmp(p, little, ll) )
return (char *)p;
return (char *)0;
}