LCOV - code coverage report
Current view: top level - i18nutil/source/utility - widthfolding.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 125 0.0 %
Date: 2014-04-14 Functions: 0 10 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : // prevent internal compiler error with MSVC6SP3
      21             : #include <utility>
      22             : #include <i18nutil/widthfolding.hxx>
      23             : #include <comphelper/string.hxx>
      24             : #include "widthfolding_data.h"
      25             : 
      26             : using namespace com::sun::star::uno;
      27             : 
      28             : 
      29             : namespace com { namespace sun { namespace star { namespace i18n {
      30             : 
      31           0 : sal_Unicode widthfolding::decompose_ja_voiced_sound_marksChar2Char (sal_Unicode inChar)
      32             : {
      33           0 :     if (0x30a0 <= inChar && inChar <= 0x30ff) {
      34           0 :       sal_Int16 i = inChar - 0x3040;
      35           0 :       if (decomposition_table[i].decomposited_character_1)
      36           0 :           return 0xFFFF;
      37             :     }
      38           0 :     return inChar;
      39             : }
      40             : 
      41             : /**
      42             :  * Decompose Japanese specific voiced and semi-voiced sound marks.
      43             :  */
      44           0 : OUString widthfolding::decompose_ja_voiced_sound_marks (const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset, bool useOffset )
      45             : {
      46             :   // Create a string buffer which can hold nCount * 2 + 1 characters.
      47             :   // Its size may become double of nCount.
      48             :   // The reference count is 1 now.
      49           0 :   rtl_uString * newStr = rtl_uString_alloc(nCount * 2);
      50             : 
      51           0 :   sal_Int32 *p = NULL;
      52           0 :   sal_Int32 position = 0;
      53           0 :   if (useOffset) {
      54             :       // Allocate double of nCount length to offset argument.
      55           0 :       offset.realloc( nCount * 2 );
      56           0 :       p = offset.getArray();
      57           0 :       position = startPos;
      58             :   }
      59             : 
      60             :   // Prepare pointers of unicode character arrays.
      61           0 :   const sal_Unicode* src = inStr.getStr() + startPos;
      62           0 :   sal_Unicode* dst = newStr->buffer;
      63             : 
      64             :   // Decomposition: GA --> KA + voice-mark
      65           0 :   while (nCount -- > 0) {
      66           0 :     sal_Unicode c = *src++;
      67             :     // see http://charts.unicode.org/Web/U3040.html Hiragana (U+3040..U+309F)
      68             :     // see http://charts.unicode.org/Web/U30A0.html Katakana (U+30A0..U+30FF)
      69             :     // Hiragana is not applied to decomposition.
      70             :     // Only Katakana is applied to decomposition
      71           0 :     if (0x30a0 <= c && c <= 0x30ff) {
      72           0 :       int i = int(c - 0x3040);
      73           0 :       sal_Unicode first = decomposition_table[i].decomposited_character_1;
      74           0 :       if (first != 0x0000) {
      75           0 :     *dst ++ = first;
      76           0 :     *dst ++ = decomposition_table[i].decomposited_character_2; // second
      77           0 :         if (useOffset) {
      78           0 :             *p ++ = position;
      79           0 :             *p ++ = position ++;
      80             :         }
      81           0 :     continue;
      82             :       }
      83             :     }
      84           0 :     *dst ++ = c;
      85           0 :     if (useOffset)
      86           0 :         *p ++ = position ++;
      87             :   }
      88           0 :   *dst = (sal_Unicode) 0;
      89             : 
      90           0 :   newStr->length = sal_Int32(dst - newStr->buffer);
      91           0 :   if (useOffset)
      92           0 :       offset.realloc(newStr->length);
      93           0 :   return OUString(newStr, SAL_NO_ACQUIRE); // take ownership
      94             : }
      95             : 
      96           0 : oneToOneMapping& widthfolding::getfull2halfTable(void)
      97             : {
      98           0 :     static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_NORMAL);
      99           0 :     table.makeIndex();
     100           0 :     return table;
     101             : }
     102             : 
     103             : /**
     104             :  * Compose Japanese specific voiced and semi-voiced sound marks.
     105             :  */
     106           0 : OUString widthfolding::compose_ja_voiced_sound_marks (const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset, bool useOffset, sal_Int32 nFlags )
     107             : {
     108             :   // Create a string buffer which can hold nCount + 1 characters.
     109             :   // Its size may become equal to nCount or smaller.
     110             :   // The reference count is 1 now.
     111           0 :   rtl_uString * newStr = rtl_uString_alloc(nCount);
     112             : 
     113             :   // Prepare pointers of unicode character arrays.
     114           0 :   const sal_Unicode* src = inStr.getStr() + startPos;
     115           0 :   sal_Unicode* dst = newStr->buffer;
     116             : 
     117             :   // This conversion algorithm requires at least one character.
     118           0 :  if (nCount > 0) {
     119             : 
     120             :   // .. .. KA         VOICE .. ..
     121             :   //       ^          ^
     122             :   //       previousChar   currentChar
     123             :   //       ^
     124             :   //       position
     125             :   //
     126             :   // will be converted to
     127             :   // .. .. GA       .. ..
     128             : 
     129           0 :   sal_Int32 *p = NULL;
     130           0 :   sal_Int32 position = 0;
     131           0 :   if (useOffset) {
     132             :       // Allocate nCount length to offset argument.
     133           0 :       offset.realloc( nCount );
     134           0 :       p = offset.getArray();
     135           0 :       position = startPos;
     136             :   }
     137             : 
     138             :   //
     139           0 :   sal_Unicode previousChar = *src ++;
     140             :   sal_Unicode currentChar;
     141             : 
     142             :   // Composition: KA + voice-mark --> GA
     143           0 :   while (-- nCount > 0) {
     144           0 :     currentChar = *src ++;
     145             :     // see http://charts.unicode.org/Web/U3040.html Hiragana (U+3040..U+309F)
     146             :     // see http://charts.unicode.org/Web/U30A0.html Katakana (U+30A0..U+30FF)
     147             :     // 0x3099 COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK
     148             :     // 0x309a COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
     149             :     // 0x309b KATAKANA-HIRAGANA VOICED SOUND MARK
     150             :     // 0x309c KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
     151           0 :     int j = currentChar - 0x3099; // 0x3099, 0x309a, 0x309b, 0x309c ?
     152             : 
     153           0 :     if (2 <= j && j <= 3) // 0x309b or 0x309c
     154           0 :         j -= 2;
     155             : 
     156           0 :     if (0 <= j && j <= 1) {
     157             :       // 0 addresses a code point regarding 0x3099 or 0x309b (voiced sound mark),
     158             :       // 1 is 0x309a or 0x309c (semi-voiced sound mark)
     159           0 :       int i = int(previousChar - 0x3040); // i acts as an index of array
     160           0 :       bool bCompose = false;
     161             : 
     162           0 :       if (0 <= i && i <= (0x30ff - 0x3040) && composition_table[i][j])
     163           0 :         bCompose = true;
     164             : 
     165             :       // not to use combined KATAKANA LETTER VU
     166           0 :       if ( previousChar == 0x30a6 && (nFlags & WIDTHFOLDNIG_DONT_USE_COMBINED_VU) )
     167           0 :         bCompose = false;
     168             : 
     169           0 :       if( bCompose ){
     170           0 :         if (useOffset) {
     171           0 :             position ++;
     172           0 :             *p ++ = position ++;
     173             :         }
     174           0 :     *dst ++ =  composition_table[i][j];
     175           0 :     previousChar = *src ++;
     176           0 :     nCount --;
     177           0 :     continue;
     178             :       }
     179             :     }
     180           0 :     if (useOffset)
     181           0 :         *p ++ = position ++;
     182           0 :     *dst ++ = previousChar;
     183           0 :     previousChar = currentChar;
     184             :   }
     185             : 
     186           0 :   if (nCount == 0) {
     187           0 :     if (useOffset)
     188           0 :         *p = position;
     189           0 :     *dst ++ = previousChar;
     190             :   }
     191             : 
     192           0 :   *dst = (sal_Unicode) 0;
     193             : 
     194           0 :   newStr->length = sal_Int32(dst - newStr->buffer);
     195             :  }
     196           0 :   if (useOffset)
     197           0 :       offset.realloc(newStr->length);
     198           0 :   return OUString(newStr, SAL_NO_ACQUIRE); // take ownership
     199             : }
     200             : 
     201           0 : oneToOneMapping& widthfolding::gethalf2fullTable(void)
     202             : {
     203           0 :     static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_NORMAL);
     204           0 :     table.makeIndex();
     205           0 :     return table;
     206             : }
     207             : 
     208           0 : sal_Unicode widthfolding::getCompositionChar(sal_Unicode c1, sal_Unicode c2)
     209             : {
     210           0 :     return composition_table[c1 - 0x3040][c2 - 0x3099];
     211             : }
     212             : 
     213             : 
     214           0 : oneToOneMapping& widthfolding::getfull2halfTableForASC()
     215             : {
     216           0 :     static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_ASC_FUNCTION);
     217           0 :     table.makeIndex();
     218             : 
     219             :     // bluedwarf: dirty hack!
     220             :     // There is an exception. Additional conversion is required following:
     221             :     //  0xFFE5 (FULLWIDTH YEN SIGN)  --> 0x005C (REVERSE SOLIDUS)
     222             :     //
     223             :     //  See the following page for detail:
     224             :     // http://wiki.openoffice.org/wiki/Calc/Features/JIS_and_ASC_functions
     225             :     int i, j, high, low;
     226           0 :     int n = sizeof(full2halfASCException) / sizeof(UnicodePairWithFlag);
     227           0 :     for( i = 0; i < n; i++ )
     228             :     {
     229           0 :         high = (full2halfASCException[i].first >> 8) & 0xFF;
     230           0 :         low  = (full2halfASCException[i].first)      & 0xFF;
     231             : 
     232           0 :         if( !table.mpIndex[high] )
     233             :         {
     234           0 :             table.mpIndex[high] = new UnicodePairWithFlag*[256];
     235             : 
     236           0 :             for( j = 0; j < 256; j++ )
     237           0 :                 table.mpIndex[high][j] = NULL;
     238             :         }
     239           0 :         table.mpIndex[high][low] = &full2halfASCException[i];
     240             :     }
     241             : 
     242           0 :     return table;
     243             : }
     244             : 
     245           0 : oneToOneMapping& widthfolding::gethalf2fullTableForJIS()
     246             : {
     247           0 :     static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_JIS_FUNCTION);
     248           0 :     table.makeIndex();
     249             : 
     250             :     // bluedwarf: dirty hack!
     251             :     //  There are some exceptions. Additional conversion are required following:
     252             :     //  0x0022 (QUOTATION MARK)  --> 0x201D (RIGHT DOUBLE QUOTATION MARK)
     253             :     //  0x0027 (APOSTROPHE)      --> 0x2019 (RIGHT SINGLE QUOTATION MARK)
     254             :     //  0x005C (REVERSE SOLIDUS) --> 0xFFE5 (FULLWIDTH YEN SIGN)
     255             :     //  0x0060 (GRAVE ACCENT)    --> 0x2018 (LEFT SINGLE QUOTATION MARK)
     256             :     //
     257             :     //  See the following page for detail:
     258             :     // http://wiki.openoffice.org/wiki/Calc/Features/JIS_and_ASC_functions
     259             :     int i, j, high, low;
     260           0 :     int n = sizeof(half2fullJISException) / sizeof(UnicodePairWithFlag);
     261           0 :     for( i = 0; i < n; i++ )
     262             :     {
     263           0 :         high = (half2fullJISException[i].first >> 8) & 0xFF;
     264           0 :         low  = (half2fullJISException[i].first)      & 0xFF;
     265             : 
     266           0 :         if( !table.mpIndex[high] )
     267             :         {
     268           0 :             table.mpIndex[high] = new UnicodePairWithFlag*[256];
     269             : 
     270           0 :             for( j = 0; j < 256; j++ )
     271           0 :                 table.mpIndex[high][j] = NULL;
     272             :         }
     273           0 :         table.mpIndex[high][low] = &half2fullJISException[i];
     274             :     }
     275             : 
     276           0 :     return table;
     277             : }
     278             : 
     279           0 : oneToOneMapping& widthfolding::getfullKana2halfKanaTable()
     280             : {
     281           0 :     static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_KATAKANA_ONLY);
     282           0 :     table.makeIndex();
     283           0 :     return table;
     284             : }
     285             : 
     286           0 : oneToOneMapping& widthfolding::gethalfKana2fullKanaTable()
     287             : {
     288           0 :     static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_KATAKANA_ONLY);
     289           0 :     table.makeIndex();
     290           0 :     return table;
     291             : }
     292             : 
     293             : } } } }
     294             : 
     295             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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