wtf/unicode/brew/UnicodeBrew.cpp

   1 /*
   2  *  Copyright (C) 2006 George Staikos <staikos@kde.org>
   3  *  Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>
   4  *  Copyright (C) 2007-2009 Torch Mobile, Inc.
   5  *  Copyright (C) 2010 Company 100, Inc.
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Library General Public
   9  *  License as published by the Free Software Foundation; either
  10  *  version 2 of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Library General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Library General Public License
  18  *  along with this library; see the file COPYING.LIB.  If not, write to
  19  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  *  Boston, MA 02110-1301, USA.
  21  */
  22
  23 #include "config.h"
  24 #include "UnicodeBrew.h"
  25
  26 #include <wchar.h>
  27 #include <wctype.h>
  28
  29 namespace WTF {
  30 namespace Unicode {
  31
  32 UChar toLower(UChar c)
  33 {
  34     return towlower(c);
  35 }
  36
  37 UChar toUpper(UChar c)
  38 {
  39     return towupper(c);
  40 }
  41
  42 UChar foldCase(UChar c)
  43 {
  44     return towlower(c);
  45 }
  46
  47 bool isPrintableChar(UChar c)
  48 {
  49     return !!iswprint(c);
  50 }
  51
  52 bool isUpper(UChar c)
  53 {
  54     return !!iswupper(c);
  55 }
  56
  57 bool isLower(UChar c)
  58 {
  59     return !!iswlower(c);
  60 }
  61
  62 bool isDigit(UChar c)
  63 {
  64     return !!iswdigit(c);
  65 }
  66
  67 bool isPunct(UChar c)
  68 {
  69     return !!iswpunct(c);
  70 }
  71
  72 bool isAlphanumeric(UChar c)
  73 {
  74     return !!iswalnum(c);
  75 }
  76
  77 int toLower(UChar* result, int resultLength, const UChar* source, int sourceLength, bool* isError)
  78 {
  79     const UChar* sourceIterator = source;
  80     const UChar* sourceEnd = source + sourceLength;
  81     UChar* resultIterator = result;
  82     UChar* resultEnd = result + resultLength;
  83
  84     if (sourceLength <= resultLength) {
  85         while (sourceIterator < sourceEnd)
  86             *resultIterator++ = towlower(*sourceIterator++);
  87     } else {
  88         while (resultIterator < resultEnd)
  89             *resultIterator++ = towlower(*sourceIterator++);
  90     }
  91
  92     int remainingCharacters = sourceIterator < sourceEnd ? sourceEnd - sourceIterator : 0;
  93     *isError = !!remainingCharacters;
  94     if (resultIterator < resultEnd)
  95         *resultIterator = 0;
  96
  97     return (resultIterator - result) + remainingCharacters;
  98 }
  99
 100 int toUpper(UChar* result, int resultLength, const UChar* source, int sourceLength, bool* isError)
 101 {
 102     const UChar* sourceIterator = source;
 103     const UChar* sourceEnd = source + sourceLength;
 104     UChar* resultIterator = result;
 105     UChar* resultEnd = result + resultLength;
 106
 107     if (sourceLength <= resultLength) {
 108         while (sourceIterator < sourceEnd)
 109             *resultIterator++ = towupper(*sourceIterator++);
 110     } else {
 111         while (resultIterator < resultEnd)
 112             *resultIterator++ = towupper(*sourceIterator++);
 113     }
 114
 115     int remainingCharacters = sourceIterator < sourceEnd ? sourceEnd - sourceIterator : 0;
 116     *isError = !!remainingCharacters;
 117     if (resultIterator < resultEnd)
 118         *resultIterator = 0;
 119
 120     return (resultIterator - result) + remainingCharacters;
 121 }
 122
 123 int foldCase(UChar* result, int resultLength, const UChar* source, int sourceLength, bool* isError)
 124 {
 125     *isError = false;
 126     if (resultLength < sourceLength) {
 127         *isError = true;
 128         return sourceLength;
 129     }
 130     for (int i = 0; i < sourceLength; ++i)
 131         result[i] = foldCase(source[i]);
 132     return sourceLength;
 133 }
 134
 135 UChar toTitleCase(UChar c)
 136 {
 137     return towupper(c);
 138 }
 139
 140 Direction direction(UChar32 c)
 141 {
 142     return static_cast<Direction>(ICU::direction(c));
 143 }
 144
 145 CharCategory category(unsigned int c)
 146 {
 147     return static_cast<CharCategory>(TO_MASK((int8_t) ICU::category(c)));
 148 }
 149
 150 DecompositionType decompositionType(UChar32 c)
 151 {
 152     return static_cast<DecompositionType>(ICU::decompositionType(c));
 153 }
 154
 155 unsigned char combiningClass(UChar32 c)
 156 {
 157     return ICU::combiningClass(c);
 158 }
 159
 160 UChar mirroredChar(UChar32 c)
 161 {
 162     return ICU::mirroredChar(c);
 163 }
 164
 165 int digitValue(UChar c)
 166 {
 167     return ICU::digitValue(c);
 168 }
 169
 170 bool isSpace(UChar c)
 171 {
 172     return !!iswspace(c);
 173 }
 174
 175 bool isLetter(UChar c)
 176 {
 177     return !!iswalpha(c);
 178 }
 179
 180 } // namespace Unicode
 181 } // namespace WTF