зеркало из https://github.com/mozilla/pjs.git
225 строки
8.5 KiB
C
225 строки
8.5 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* jeroen.dobbelaere@acunia.com
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* #include "PRIntlpriv.h" */
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#include "unicpriv.h"
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typedef PRUint16 (* MapFormatFunc)(PRUint16 in,const uTable *uT,const uMapCell *cell);
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typedef PRBool (* HitFormateFunc)(PRUint16 in,const uMapCell *cell);
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typedef void (* FillInfoFormateFunc)(const uTable *uT, const uMapCell *cell, PRUint32* info);
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PRIVATE PRBool uHitFormate0(PRUint16 in,const uMapCell *cell);
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PRIVATE PRBool uHitFormate2(PRUint16 in,const uMapCell *cell);
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PRIVATE PRUint16 uMapFormate0(PRUint16 in,const uTable *uT,const uMapCell *cell);
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PRIVATE PRUint16 uMapFormate1(PRUint16 in,const uTable *uT,const uMapCell *cell);
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PRIVATE PRUint16 uMapFormate2(PRUint16 in,const uTable *uT,const uMapCell *cell);
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PRIVATE void uFillInfoFormate0(const uTable *uT,const uMapCell *cell,PRUint32* aInfo);
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PRIVATE void uFillInfoFormate1(const uTable *uT,const uMapCell *cell,PRUint32* aInfo);
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PRIVATE void uFillInfoFormate2(const uTable *uT,const uMapCell *cell,PRUint32* aInfo);
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PRIVATE const uMapCell *uGetMapCell(const uTable *uT, PRInt16 item);
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PRIVATE char uGetFormat(const uTable *uT, PRInt16 item);
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/*=================================================================================
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=================================================================================*/
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PRIVATE const MapFormatFunc m_map[uNumFormatTag] =
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{
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uMapFormate0,
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uMapFormate1,
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uMapFormate2,
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};
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/*=================================================================================
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=================================================================================*/
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PRIVATE const FillInfoFormateFunc m_fillinfo[uNumFormatTag] =
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{
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uFillInfoFormate0,
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uFillInfoFormate1,
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uFillInfoFormate2,
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};
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/*=================================================================================
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=================================================================================*/
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PRIVATE const HitFormateFunc m_hit[uNumFormatTag] =
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{
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uHitFormate0,
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uHitFormate0,
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uHitFormate2,
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};
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#define uHit(format,in,cell) (* m_hit[(format)])((in),(cell))
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#define uMap(format,in,uT,cell) (* m_map[(format)])((in),(uT),(cell))
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#define uFillInfoCell(format,uT,cell,info) (* m_fillinfo[(format)])((uT),(cell),(info))
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#define uGetMapCell(uT, item) ((uMapCell *)(((PRUint16 *)uT) + (uT)->offsetToMapCellArray + (item)*(UMAPCELL_SIZE/sizeof(PRUint16))))
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#define uGetFormat(uT, item) (((((PRUint16 *)uT) + (uT)->offsetToFormatArray)[(item)>> 2 ] >> (((item)% 4 ) << 2)) & 0x0f)
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/*=================================================================================
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=================================================================================*/
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MODULE_PRIVATE void uFillInfo(const uTable *uT, PRUint32* aInfo)
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{
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PRUint16 itemOfList = uT->itemOfList;
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PRUint16 i;
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for(i=0;i<itemOfList;i++)
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{
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const uMapCell* uCell;
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PRInt8 format = uGetFormat(uT,i);
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uCell = uGetMapCell(uT,i);
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uFillInfoCell(format, uT, uCell, aInfo);
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}
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}
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/*=================================================================================
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=================================================================================*/
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MODULE_PRIVATE PRBool uMapCode(const uTable *uT, PRUint16 in, PRUint16* out)
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{
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PRBool done = PR_FALSE;
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PRUint16 itemOfList = uT->itemOfList;
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PRUint16 i;
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*out = NOMAPPING;
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for(i=0;i<itemOfList;i++)
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{
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const uMapCell* uCell;
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PRInt8 format = uGetFormat(uT,i);
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uCell = uGetMapCell(uT,i);
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if(uHit(format, in, uCell))
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{
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*out = uMap(format, in, uT,uCell);
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done = PR_TRUE;
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break;
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}
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}
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return ( done && (*out != NOMAPPING));
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}
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/*
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member function
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*/
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/*=================================================================================
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=================================================================================*/
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PRIVATE PRBool uHitFormate0(PRUint16 in,const uMapCell *cell)
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{
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return ( (in >= cell->fmt.format0.srcBegin) &&
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(in <= cell->fmt.format0.srcEnd) ) ;
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}
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/*=================================================================================
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=================================================================================*/
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PRIVATE PRBool uHitFormate2(PRUint16 in,const uMapCell *cell)
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{
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return (in == cell->fmt.format2.srcBegin);
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}
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/*=================================================================================
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=================================================================================*/
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PRIVATE PRUint16 uMapFormate0(PRUint16 in,const uTable *uT,const uMapCell *cell)
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{
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return ((in - cell->fmt.format0.srcBegin) + cell->fmt.format0.destBegin);
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}
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/*=================================================================================
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=================================================================================*/
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PRIVATE PRUint16 uMapFormate1(PRUint16 in,const uTable *uT,const uMapCell *cell)
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{
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return (*(((PRUint16 *)uT) + uT->offsetToMappingTable
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+ cell->fmt.format1.mappingOffset + in - cell->fmt.format1.srcBegin));
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}
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/*=================================================================================
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=================================================================================*/
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PRIVATE PRUint16 uMapFormate2(PRUint16 in,const uTable *uT,const uMapCell *cell)
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{
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return (cell->fmt.format2.destBegin);
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}
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#define SET_REPRESENTABLE(info, c) (info)[(c) >> 5] |= (1L << ((c) & 0x1f))
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/*=================================================================================
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=================================================================================*/
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PRIVATE void uFillInfoFormate0(const uTable *uT,const uMapCell *cell,PRUint32* info)
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{
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PRUint16 begin, end, i;
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begin = cell->fmt.format0.srcBegin;
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end = cell->fmt.format0.srcEnd;
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if( (begin >> 5) == (end >> 5)) /* High 17 bits are the same */
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{
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for(i = begin; i <= end; i++)
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SET_REPRESENTABLE(info, i);
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}
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else {
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PRUint32 b = begin >> 5;
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PRUint32 e = end >> 5;
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info[ b ] |= (0xFFFFFFFFL << ((begin) & 0x1f));
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info[ e ] |= (0xFFFFFFFFL >> (31 - ((end) & 0x1f)));
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for(b++ ; b < e ; b++)
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info[b] |= 0xFFFFFFFFL;
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}
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}
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/*=================================================================================
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=================================================================================*/
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PRIVATE void uFillInfoFormate1(const uTable *uT,const uMapCell *cell,PRUint32* info)
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{
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PRUint16 begin, end, i;
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PRUint16 *base;
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begin = cell->fmt.format0.srcBegin;
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end = cell->fmt.format0.srcEnd;
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base = (((PRUint16 *)uT) + uT->offsetToMappingTable + cell->fmt.format1.mappingOffset);
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for(i = begin; i <= end; i++)
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{
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if(0xFFFD != base[i - begin]) /* check every item */
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SET_REPRESENTABLE(info, i);
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}
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}
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/*=================================================================================
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=================================================================================*/
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PRIVATE void uFillInfoFormate2(const uTable *uT,const uMapCell *cell,PRUint32* info)
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{
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SET_REPRESENTABLE(info, cell->fmt.format2.srcBegin);
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}
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