| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_i18npool.hxx" |
| #include <breakiterator_th.hxx> |
| #include <wtt.h> |
| |
| #include <string.h> // for memset |
| |
| using namespace ::com::sun::star::uno; |
| using namespace ::com::sun::star::lang; |
| using namespace ::rtl; |
| |
| namespace com { namespace sun { namespace star { namespace i18n { |
| |
| // ---------------------------------------------------- |
| // class Breakiterator_th |
| // ----------------------------------------------------; |
| BreakIterator_th::BreakIterator_th() |
| { |
| cBreakIterator = "com.sun.star.i18n.BreakIterator_th"; |
| wordRule=lineRule=NULL; |
| } |
| |
| BreakIterator_th::~BreakIterator_th() |
| { |
| } |
| |
| #define SARA_AM 0x0E33 |
| |
| /* |
| * cell composition states |
| */ |
| |
| #define ST_COM 1 // Compose the following character with leading char and display in the same cell |
| #define ST_NXT 2 // display the following character in the next cell |
| #define ST_NDP 3 // non-display |
| |
| static const sal_Int16 thaiCompRel[MAX_CT][MAX_CT] = { |
| // C N C L F F F B B B T A A A A A A |
| // T O O V V V V V V D O D D D V V V |
| // R N N 1 2 3 1 2 N 1 2 3 1 2 3 |
| // L S E |
| // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| { 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 |
| |
| }; |
| |
| const sal_uInt32 is_ST_COM = (1<<CT_CTRL)|(1<<CT_NON)|(1<<CT_CONS)|(1<<CT_TONE); |
| |
| static sal_uInt16 SAL_CALL getCombState(const sal_Unicode *text, sal_Int32 pos) |
| { |
| sal_uInt16 ch1 = getCharType(text[pos]); |
| sal_uInt16 ch2 = getCharType(text[pos+1]); |
| |
| if (text[pos+1] == SARA_AM) { |
| if ((1 << ch1) & is_ST_COM) |
| return ST_COM; |
| else |
| ch2 = CT_AD1; |
| } |
| |
| return thaiCompRel[ch1][ch2]; |
| } |
| |
| |
| static sal_Int32 SAL_CALL getACell(const sal_Unicode *text, sal_Int32 pos, sal_Int32 len) |
| { |
| sal_uInt32 curr = 1; |
| for (; pos + 1 < len && getCombState(text, pos) == ST_COM; curr++, pos++) {} |
| return curr; |
| } |
| |
| #define is_Thai(c) (0x0e00 <= c && c <= 0x0e7f) // Unicode definition for Thai |
| |
| void SAL_CALL BreakIterator_th::makeIndex(const OUString& Text, sal_Int32 nStartPos) |
| throw(RuntimeException) |
| { |
| if (Text != cachedText) { |
| cachedText = Text; |
| if (cellIndexSize < cachedText.getLength()) { |
| cellIndexSize = cachedText.getLength(); |
| free(nextCellIndex); |
| free(previousCellIndex); |
| nextCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32)); |
| previousCellIndex = (sal_Int32*) calloc(cellIndexSize, sizeof(sal_Int32)); |
| } |
| // reset nextCell for new Text |
| memset(nextCellIndex, 0, cellIndexSize * sizeof(sal_Int32)); |
| } |
| else if (nextCellIndex[nStartPos] > 0 || ! is_Thai(Text[nStartPos])) |
| return; |
| |
| const sal_Unicode* str = cachedText.getStr(); |
| sal_Int32 len = cachedText.getLength(), startPos, endPos; |
| |
| startPos = nStartPos; |
| while (startPos > 0 && is_Thai(str[startPos-1])) startPos--; |
| endPos = nStartPos+1; |
| while (endPos < len && is_Thai(str[endPos])) endPos++; |
| |
| sal_Int32 start, end, pos; |
| pos = start = end = startPos; |
| |
| while (pos < endPos) { |
| end += getACell(str, start, endPos); |
| while (pos < end) { |
| nextCellIndex[pos] = end; |
| previousCellIndex[pos] = start; |
| pos++; |
| } |
| start = end; |
| } |
| } |
| |
| } } } } |
