forked from amazingfate/loongoffice
2a42d5ec29
Change-Id: I1cd4254713ce9c1bc7c232414c24e926f1f8a653 Reviewed-on: https://gerrit.libreoffice.org/8269 Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>
151 lines
6.7 KiB
C++
151 lines
6.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <breakiterator_th.hxx>
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#include <wtt.h>
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#include <string.h>
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::lang;
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using namespace ::rtl;
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namespace com { namespace sun { namespace star { namespace i18n {
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// class Breakiterator_th
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// ----------------------------------------------------;
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BreakIterator_th::BreakIterator_th()
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{
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cBreakIterator = "com.sun.star.i18n.BreakIterator_th";
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wordRule=lineRule=NULL;
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}
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BreakIterator_th::~BreakIterator_th()
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{
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}
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#define SARA_AM 0x0E33
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/*
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* cell composition states
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*/
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#define ST_COM 1 // Compose the following character with leading char and display in the same cell
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#define ST_NXT 2 // display the following character in the next cell
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#define ST_NDP 3 // non-display
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static const sal_Int16 thaiCompRel[MAX_CT][MAX_CT] = {
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// C N C L F F F B B B T A A A A A A
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// T O O V V V V V V D O D D D V V V
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// R N N 1 2 3 1 2 N 1 2 3 1 2 3
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// L S E
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // CTRL 0
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // NON 1
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_COM, ST_COM, ST_COM, ST_COM, ST_COM, ST_COM, ST_COM, ST_COM, ST_COM, ST_COM }, // CONS 2
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // LV 3
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // FV1 4
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // FV2 5
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // FV3 6
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_COM, ST_COM, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // BV1 7
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_COM, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // BV2 8
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // BD 9
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // TONE 10
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // AD1 11
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // AD2 12
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // AD3 13
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_COM, ST_COM, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // AV1 14
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_COM, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT }, // AV2 15
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{ ST_NDP, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_NXT, ST_COM, ST_NXT, ST_COM, ST_NXT, ST_NXT, ST_NXT, ST_NXT } // AV3 16
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};
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const sal_uInt32 is_ST_COM = (1<<CT_CTRL)|(1<<CT_NON)|(1<<CT_CONS)|(1<<CT_TONE);
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static sal_uInt16 SAL_CALL getCombState(const sal_Unicode *text, sal_Int32 pos)
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{
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sal_uInt16 ch1 = getCharType(text[pos]);
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sal_uInt16 ch2 = getCharType(text[pos+1]);
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if (text[pos+1] == SARA_AM) {
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if ((1 << ch1) & is_ST_COM)
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return ST_COM;
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else
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ch2 = CT_AD1;
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}
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return thaiCompRel[ch1][ch2];
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}
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static sal_Int32 SAL_CALL getACell(const sal_Unicode *text, sal_Int32 pos, sal_Int32 len)
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{
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sal_uInt32 curr = 1;
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for (; pos + 1 < len && getCombState(text, pos) == ST_COM; curr++, pos++) {}
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return curr;
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}
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#define is_Thai(c) (0x0e00 <= c && c <= 0x0e7f) // Unicode definition for Thai
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void SAL_CALL BreakIterator_th::makeIndex(const OUString& Text, sal_Int32 nStartPos)
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throw(RuntimeException)
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{
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if (Text != cachedText) {
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cachedText = Text;
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if (cellIndexSize < cachedText.getLength()) {
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cellIndexSize = cachedText.getLength();
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free(nextCellIndex);
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free(previousCellIndex);
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nextCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32));
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previousCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32));
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}
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// reset nextCell for new Text
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memset(nextCellIndex, 0, cellIndexSize * sizeof(sal_Int32));
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}
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else if (nStartPos >= Text.getLength() || nextCellIndex[nStartPos] > 0
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|| !is_Thai(Text[nStartPos]))
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return;
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const sal_Unicode* str = cachedText.getStr();
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sal_Int32 len = cachedText.getLength(), startPos, endPos;
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startPos = nStartPos;
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while (startPos > 0 && is_Thai(str[startPos-1])) startPos--;
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endPos = nStartPos+1;
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while (endPos < len && is_Thai(str[endPos])) endPos++;
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sal_Int32 start, end, pos;
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pos = start = end = startPos;
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while (pos < endPos) {
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end += getACell(str, start, endPos);
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while (pos < end) {
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nextCellIndex[pos] = end;
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previousCellIndex[pos] = start;
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pos++;
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}
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start = end;
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}
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}
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} } } }
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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