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      1 /*
      2  *  Copyright (C) 2006 George Staikos <staikos (at) kde.org>
      3  *  Copyright (C) 2006 Alexey Proskuryakov <ap (at) 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
    182