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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) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
      5  *
      6  *  This library is free software; you can redistribute it and/or
      7  *  modify it under the terms of the GNU Library General Public
      8  *  License as published by the Free Software Foundation; either
      9  *  version 2 of the License, or (at your option) any later version.
     10  *
     11  *  This library is distributed in the hope that it will be useful,
     12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  *  Library General Public License for more details.
     15  *
     16  *  You should have received a copy of the GNU Library General Public License
     17  *  along with this library; see the file COPYING.LIB.  If not, write to
     18  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  *  Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #ifndef WTF_UNICODE_ICU_H
     24 #define WTF_UNICODE_ICU_H
     25 
     26 #include <stdlib.h>
     27 #include <unicode/uchar.h>
     28 #include <unicode/uscript.h>
     29 #include <unicode/ustring.h>
     30 #include <unicode/utf16.h>
     31 
     32 namespace WTF {
     33 
     34 namespace Unicode {
     35 
     36 enum Direction {
     37     LeftToRight = U_LEFT_TO_RIGHT,
     38     RightToLeft = U_RIGHT_TO_LEFT,
     39     EuropeanNumber = U_EUROPEAN_NUMBER,
     40     EuropeanNumberSeparator = U_EUROPEAN_NUMBER_SEPARATOR,
     41     EuropeanNumberTerminator = U_EUROPEAN_NUMBER_TERMINATOR,
     42     ArabicNumber = U_ARABIC_NUMBER,
     43     CommonNumberSeparator = U_COMMON_NUMBER_SEPARATOR,
     44     BlockSeparator = U_BLOCK_SEPARATOR,
     45     SegmentSeparator = U_SEGMENT_SEPARATOR,
     46     WhiteSpaceNeutral = U_WHITE_SPACE_NEUTRAL,
     47     OtherNeutral = U_OTHER_NEUTRAL,
     48     LeftToRightEmbedding = U_LEFT_TO_RIGHT_EMBEDDING,
     49     LeftToRightOverride = U_LEFT_TO_RIGHT_OVERRIDE,
     50     RightToLeftArabic = U_RIGHT_TO_LEFT_ARABIC,
     51     RightToLeftEmbedding = U_RIGHT_TO_LEFT_EMBEDDING,
     52     RightToLeftOverride = U_RIGHT_TO_LEFT_OVERRIDE,
     53     PopDirectionalFormat = U_POP_DIRECTIONAL_FORMAT,
     54     NonSpacingMark = U_DIR_NON_SPACING_MARK,
     55     BoundaryNeutral = U_BOUNDARY_NEUTRAL
     56 };
     57 
     58 enum DecompositionType {
     59     DecompositionNone = U_DT_NONE,
     60     DecompositionCanonical = U_DT_CANONICAL,
     61     DecompositionCompat = U_DT_COMPAT,
     62     DecompositionCircle = U_DT_CIRCLE,
     63     DecompositionFinal = U_DT_FINAL,
     64     DecompositionFont = U_DT_FONT,
     65     DecompositionFraction = U_DT_FRACTION,
     66     DecompositionInitial = U_DT_INITIAL,
     67     DecompositionIsolated = U_DT_ISOLATED,
     68     DecompositionMedial = U_DT_MEDIAL,
     69     DecompositionNarrow = U_DT_NARROW,
     70     DecompositionNoBreak = U_DT_NOBREAK,
     71     DecompositionSmall = U_DT_SMALL,
     72     DecompositionSquare = U_DT_SQUARE,
     73     DecompositionSub = U_DT_SUB,
     74     DecompositionSuper = U_DT_SUPER,
     75     DecompositionVertical = U_DT_VERTICAL,
     76     DecompositionWide = U_DT_WIDE,
     77 };
     78 
     79 enum CharCategory {
     80     NoCategory =  0,
     81     Other_NotAssigned = U_MASK(U_GENERAL_OTHER_TYPES),
     82     Letter_Uppercase = U_MASK(U_UPPERCASE_LETTER),
     83     Letter_Lowercase = U_MASK(U_LOWERCASE_LETTER),
     84     Letter_Titlecase = U_MASK(U_TITLECASE_LETTER),
     85     Letter_Modifier = U_MASK(U_MODIFIER_LETTER),
     86     Letter_Other = U_MASK(U_OTHER_LETTER),
     87 
     88     Mark_NonSpacing = U_MASK(U_NON_SPACING_MARK),
     89     Mark_Enclosing = U_MASK(U_ENCLOSING_MARK),
     90     Mark_SpacingCombining = U_MASK(U_COMBINING_SPACING_MARK),
     91 
     92     Number_DecimalDigit = U_MASK(U_DECIMAL_DIGIT_NUMBER),
     93     Number_Letter = U_MASK(U_LETTER_NUMBER),
     94     Number_Other = U_MASK(U_OTHER_NUMBER),
     95 
     96     Separator_Space = U_MASK(U_SPACE_SEPARATOR),
     97     Separator_Line = U_MASK(U_LINE_SEPARATOR),
     98     Separator_Paragraph = U_MASK(U_PARAGRAPH_SEPARATOR),
     99 
    100     Other_Control = U_MASK(U_CONTROL_CHAR),
    101     Other_Format = U_MASK(U_FORMAT_CHAR),
    102     Other_PrivateUse = U_MASK(U_PRIVATE_USE_CHAR),
    103     Other_Surrogate = U_MASK(U_SURROGATE),
    104 
    105     Punctuation_Dash = U_MASK(U_DASH_PUNCTUATION),
    106     Punctuation_Open = U_MASK(U_START_PUNCTUATION),
    107     Punctuation_Close = U_MASK(U_END_PUNCTUATION),
    108     Punctuation_Connector = U_MASK(U_CONNECTOR_PUNCTUATION),
    109     Punctuation_Other = U_MASK(U_OTHER_PUNCTUATION),
    110 
    111     Symbol_Math = U_MASK(U_MATH_SYMBOL),
    112     Symbol_Currency = U_MASK(U_CURRENCY_SYMBOL),
    113     Symbol_Modifier = U_MASK(U_MODIFIER_SYMBOL),
    114     Symbol_Other = U_MASK(U_OTHER_SYMBOL),
    115 
    116     Punctuation_InitialQuote = U_MASK(U_INITIAL_PUNCTUATION),
    117     Punctuation_FinalQuote = U_MASK(U_FINAL_PUNCTUATION)
    118 };
    119 
    120 inline UChar32 foldCase(UChar32 c)
    121 {
    122     return u_foldCase(c, U_FOLD_CASE_DEFAULT);
    123 }
    124 
    125 inline int foldCase(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
    126 {
    127     UErrorCode status = U_ZERO_ERROR;
    128     int realLength = u_strFoldCase(result, resultLength, src, srcLength, U_FOLD_CASE_DEFAULT, &status);
    129     *error = !U_SUCCESS(status);
    130     return realLength;
    131 }
    132 
    133 inline int toLower(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
    134 {
    135     UErrorCode status = U_ZERO_ERROR;
    136     int realLength = u_strToLower(result, resultLength, src, srcLength, "", &status);
    137     *error = !!U_FAILURE(status);
    138     return realLength;
    139 }
    140 
    141 inline UChar32 toLower(UChar32 c)
    142 {
    143     return u_tolower(c);
    144 }
    145 
    146 inline UChar32 toUpper(UChar32 c)
    147 {
    148     return u_toupper(c);
    149 }
    150 
    151 inline int toUpper(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
    152 {
    153     UErrorCode status = U_ZERO_ERROR;
    154     int realLength = u_strToUpper(result, resultLength, src, srcLength, "", &status);
    155     *error = !!U_FAILURE(status);
    156     return realLength;
    157 }
    158 
    159 inline UChar32 toTitleCase(UChar32 c)
    160 {
    161     return u_totitle(c);
    162 }
    163 
    164 inline bool isArabicChar(UChar32 c)
    165 {
    166       return ublock_getCode(c) == UBLOCK_ARABIC;
    167 }
    168 
    169 inline bool isAlphanumeric(UChar32 c)
    170 {
    171     return u_isalnum(c);
    172 }
    173 
    174 inline bool isSeparatorSpace(UChar32 c)
    175 {
    176     return u_charType(c) == U_SPACE_SEPARATOR;
    177 }
    178 
    179 inline bool isPrintableChar(UChar32 c)
    180 {
    181     return !!u_isprint(c);
    182 }
    183 
    184 inline bool isPunct(UChar32 c)
    185 {
    186     return !!u_ispunct(c);
    187 }
    188 
    189 inline bool hasLineBreakingPropertyComplexContext(UChar32 c)
    190 {
    191     return u_getIntPropertyValue(c, UCHAR_LINE_BREAK) == U_LB_COMPLEX_CONTEXT;
    192 }
    193 
    194 inline UChar32 mirroredChar(UChar32 c)
    195 {
    196     return u_charMirror(c);
    197 }
    198 
    199 inline CharCategory category(UChar32 c)
    200 {
    201     return static_cast<CharCategory>(U_GET_GC_MASK(c));
    202 }
    203 
    204 inline Direction direction(UChar32 c)
    205 {
    206     return static_cast<Direction>(u_charDirection(c));
    207 }
    208 
    209 inline bool isLower(UChar32 c)
    210 {
    211     return !!u_islower(c);
    212 }
    213 
    214 inline uint8_t combiningClass(UChar32 c)
    215 {
    216     return u_getCombiningClass(c);
    217 }
    218 
    219 inline DecompositionType decompositionType(UChar32 c)
    220 {
    221     return static_cast<DecompositionType>(u_getIntPropertyValue(c, UCHAR_DECOMPOSITION_TYPE));
    222 }
    223 
    224 inline int umemcasecmp(const UChar* a, const UChar* b, int len)
    225 {
    226     return u_memcasecmp(a, b, len, U_FOLD_CASE_DEFAULT);
    227 }
    228 
    229 } // namespace Unicode
    230 
    231 } // namespace WTF
    232 
    233 #endif // WTF_UNICODE_ICU_H
    234