mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-15 03:00:30 +00:00
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
/* detectu2.c */
|
|
|
|
#include "intlpriv.h"
|
|
#include "xp.h"
|
|
#include "libi18n.h"
|
|
|
|
|
|
/*
|
|
This function returns csid if it finds that the data is UCS-2 or
|
|
UCS-2 needs swap.
|
|
*/
|
|
#define UCS2_GIVEUP_COUNT 512 /* Test at most 512 byte */
|
|
#define UCS2_00_TRIGGER 8 /* Need at least 4 0x00 to make our sample meanful */
|
|
#define UCS2_DETECT_DIFF 4
|
|
|
|
MODULE_PRIVATE int DetectUCS2(CCCDataObject obj, unsigned char *pSrc, int len)
|
|
{
|
|
/* need to fix DetectUCS2 to look for UTF8 */
|
|
if(len < 2) return(CS_DEFAULT);
|
|
|
|
if(((pSrc[0]<<8) | pSrc[1]) == BYTE_ORDER_MARK)
|
|
return(CS_UCS2);
|
|
|
|
if(((pSrc[0]<<8) | pSrc[1]) == NEEDS_SWAP_MARK)
|
|
return(CS_UCS2_SWAP);
|
|
return(CS_DEFAULT);
|
|
}
|
|
|
|
|
|
|
|
|
|
|