Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 244 insertions, 0 deletions

diff --git a/i18nutil/source/utility/widthfolding.cxx b/i18nutil/source/utility/widthfolding.cxx
new file mode 100644
index 000000000..6a1b52d16
--- /dev/null
+++ b/i18nutil/source/utility/widthfolding.cxx
@@ -0,0 +1,244 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#include <i18nutil/widthfolding.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include "widthfolding_data.h"
+
+using namespace com::sun::star::uno;
+
+
+namespace i18nutil {
+
+sal_Unicode widthfolding::decompose_ja_voiced_sound_marksChar2Char (sal_Unicode inChar)
+{
+    if (0x30a0 <= inChar && inChar <= 0x30ff) {
+      sal_Int16 i = inChar - 0x3040;
+      if (decomposition_table[i].decomposited_character_1)
+          return 0xFFFF;
+    }
+    return inChar;
+}
+
+/**
+ * Decompose Japanese specific voiced and semi-voiced sound marks.
+ */
+OUString widthfolding::decompose_ja_voiced_sound_marks (const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset )
+{
+  // Create a string buffer which can hold nCount * 2 + 1 characters.
+  // Its size may become double of nCount.
+  // The reference count is 1 now.
+  rtl_uString * newStr = rtl_uString_alloc(nCount * 2);
+
+  sal_Int32 *p = nullptr;
+  sal_Int32 position = 0;
+  if (pOffset) {
+      // Allocate double of nCount length to offset argument.
+      pOffset->realloc( nCount * 2 );
+      p = pOffset->getArray();
+      position = startPos;
+  }
+
+  // Prepare pointers of unicode character arrays.
+  const sal_Unicode* src = inStr.getStr() + startPos;
+  sal_Unicode* dst = newStr->buffer;
+
+  // Decomposition: GA --> KA + voice-mark
+  while (nCount -- > 0) {
+    sal_Unicode c = *src++;
+    // see http://charts.unicode.org/Web/U3040.html Hiragana (U+3040..U+309F)
+    // see http://charts.unicode.org/Web/U30A0.html Katakana (U+30A0..U+30FF)
+    // Hiragana is not applied to decomposition.
+    // Only Katakana is applied to decomposition
+    if (0x30a0 <= c && c <= 0x30ff) {
+      int i = int(c - 0x3040);
+      sal_Unicode first = decomposition_table[i].decomposited_character_1;
+      if (first != 0x0000) {
+        *dst ++ = first;
+        *dst ++ = decomposition_table[i].decomposited_character_2; // second
+        if (pOffset) {
+            *p ++ = position;
+            *p ++ = position ++;
+        }
+        continue;
+      }
+    }
+    *dst ++ = c;
+    if (pOffset)
+        *p ++ = position ++;
+  }
+  *dst = u'\0';
+
+  newStr->length = sal_Int32(dst - newStr->buffer);
+  if (pOffset)
+      pOffset->realloc(newStr->length);
+  return OUString(newStr, SAL_NO_ACQUIRE); // take ownership
+}
+
+oneToOneMapping& widthfolding::getfull2halfTable()
+{
+    static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_NORMAL);
+    table.makeIndex();
+    return table;
+}
+
+/**
+ * Compose Japanese specific voiced and semi-voiced sound marks.
+ */
+OUString widthfolding::compose_ja_voiced_sound_marks (const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset, sal_Int32 nFlags )
+{
+  // Create a string buffer which can hold nCount + 1 characters.
+  // Its size may become equal to nCount or smaller.
+  // The reference count is 1 now.
+  rtl_uString * newStr = rtl_uString_alloc(nCount);
+
+  // Prepare pointers of unicode character arrays.
+  const sal_Unicode* src = inStr.getStr() + startPos;
+  sal_Unicode* dst = newStr->buffer;
+
+  // This conversion algorithm requires at least one character.
+  if (nCount > 0) {
+
+      // .. .. KA         VOICE .. ..
+      //       ^          ^
+      //       previousChar   currentChar
+      //       ^
+      //       position
+      //
+      // will be converted to
+      // .. .. GA       .. ..
+
+      sal_Int32 *p = nullptr;
+      sal_Int32 position = 0;
+      if (pOffset) {
+          // Allocate nCount length to offset argument.
+          pOffset->realloc( nCount );
+          p = pOffset->getArray();
+          position = startPos;
+      }
+
+      //
+      sal_Unicode previousChar = *src ++;
+      sal_Unicode currentChar;
+
+      // Composition: KA + voice-mark --> GA
+      while (-- nCount > 0) {
+        currentChar = *src ++;
+        // see http://charts.unicode.org/Web/U3040.html Hiragana (U+3040..U+309F)
+        // see http://charts.unicode.org/Web/U30A0.html Katakana (U+30A0..U+30FF)
+        // 0x3099 COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK
+        // 0x309a COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
+        // 0x309b KATAKANA-HIRAGANA VOICED SOUND MARK
+        // 0x309c KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
+        int j = currentChar - 0x3099; // 0x3099, 0x309a, 0x309b, 0x309c ?
+
+        if (2 <= j && j <= 3) // 0x309b or 0x309c
+            j -= 2;
+
+        if (0 <= j && j <= 1) {
+          // 0 addresses a code point regarding 0x3099 or 0x309b (voiced sound mark),
+          // 1 is 0x309a or 0x309c (semi-voiced sound mark)
+          int i = int(previousChar - 0x3040); // i acts as an index of array
+          bool bCompose = false;
+
+          if (0 <= i && i <= (0x30ff - 0x3040) && composition_table[i][j])
+            bCompose = true;
+
+          // not to use combined KATAKANA LETTER VU
+          if ( previousChar == 0x30a6 && (nFlags & WIDTHFOLDING_DONT_USE_COMBINED_VU) )
+            bCompose = false;
+
+          if( bCompose ){
+            if (pOffset) {
+                position ++;
+                *p ++ = position ++;
+            }
+            *dst ++ =  composition_table[i][j];
+            previousChar = *src ++;
+            nCount --;
+            continue;
+          }
+        }
+        if (pOffset)
+            *p ++ = position ++;
+        *dst ++ = previousChar;
+        previousChar = currentChar;
+      }
+
+      if (nCount == 0) {
+        if (pOffset)
+            *p = position;
+        *dst ++ = previousChar;
+      }
+
+      *dst = u'\0';
+
+      newStr->length = sal_Int32(dst - newStr->buffer);
+  }
+  if (pOffset)
+      pOffset->realloc(newStr->length);
+  return OUString(newStr, SAL_NO_ACQUIRE); // take ownership
+}
+
+oneToOneMapping& widthfolding::gethalf2fullTable()
+{
+    static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_NORMAL);
+    table.makeIndex();
+    return table;
+}
+
+sal_Unicode widthfolding::getCompositionChar(sal_Unicode c1, sal_Unicode c2)
+{
+    return composition_table[c1 - 0x3040][c2 - 0x3099];
+}
+
+
+oneToOneMapping& widthfolding::getfull2halfTableForASC()
+{
+    static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_ASC_FUNCTION);
+    table.makeIndex();
+
+    return table;
+}
+
+oneToOneMapping& widthfolding::gethalf2fullTableForJIS()
+{
+    static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_JIS_FUNCTION);
+    table.makeIndex();
+
+    return table;
+}
+
+oneToOneMapping& widthfolding::getfullKana2halfKanaTable()
+{
+    static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_KATAKANA_ONLY);
+    table.makeIndex();
+    return table;
+}
+
+oneToOneMapping& widthfolding::gethalfKana2fullKanaTable()
+{
+    static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_KATAKANA_ONLY);
+    table.makeIndex();
+    return table;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */