i18npool/source/transliteration/ignoreKiKuFollowedBySa_ja_JP.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
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  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
  21 #include <utility>
  22 #include <comphelper/string.hxx>
  23 #define TRANSLITERATION_KiKuFollowedBySa_ja_JP
  24 #include <transliteration_Ignore.hxx>
  25
  26 using namespace com::sun::star::uno;
  27 using namespace com::sun::star::lang;
  28
  29
  30 namespace com { namespace sun { namespace star { namespace i18n {
  31
  32 OUString SAL_CALL
  33 ignoreKiKuFollowedBySa_ja_JP::folding( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset )
  34   throw(RuntimeException)
  35 {
  36     // Create a string buffer which can hold nCount + 1 characters.
  37     // The reference count is 1 now.
  38     rtl_uString * newStr = rtl_uString_alloc(nCount);
  39     sal_Unicode * dst = newStr->buffer;
  40     const sal_Unicode * src = inStr.getStr() + startPos;
  41
  42     sal_Int32 *p = 0;
  43     sal_Int32 position = 0;
  44     if (useOffset) {
  45         // Allocate nCount length to offset argument.
  46         offset.realloc( nCount );
  47         p = offset.getArray();
  48         position = startPos;
  49     }
  50
  51     //
  52     sal_Unicode previousChar = *src ++;
  53     sal_Unicode currentChar;
  54
  55     // Translation
  56     while (-- nCount > 0) {
  57         currentChar = *src ++;
  58
  59         // KU + Sa-So --> KI + Sa-So
  60         if (previousChar == 0x30AF ) { // KATAKANA LETTER KU
  61             if (0x30B5 <= currentChar && // KATAKANA LETTER SA
  62                     currentChar <= 0x30BE) { // KATAKANA LETTER ZO
  63                 if (useOffset) {
  64                     *p ++ = position++;
  65                     *p ++ = position++;
  66                 }
  67                 *dst ++ = 0x30AD;          // KATAKANA LETTER KI
  68                 *dst ++ = currentChar;
  69                 previousChar = *src ++;
  70                 nCount --;
  71                 continue;
  72             }
  73         }
  74
  75         if (useOffset)
  76             *p ++ = position++;
  77         *dst ++ = previousChar;
  78         previousChar = currentChar;
  79     }
  80
  81     if (nCount == 0) {
  82         if (useOffset)
  83             *p = position;
  84         *dst ++ = previousChar;
  85     }
  86
  87     *dst = (sal_Unicode) 0;
  88
  89     newStr->length = sal_Int32(dst - newStr->buffer);
  90     if (useOffset)
  91         offset.realloc(newStr->length);
  92     return OUString(newStr, SAL_NO_ACQUIRE); // take ownership
  93 }
  94
  95 } } } }
  96
  97 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */