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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 <unicode/uchar.h>
     27 #include <unicode/ustring.h>
     28 
     29 namespace WTF {
     30 
     31 namespace Unicode {
     32 
     33 enum Direction {
     34     LeftToRight = U_LEFT_TO_RIGHT,
     35     RightToLeft = U_RIGHT_TO_LEFT,
     36     EuropeanNumber = U_EUROPEAN_NUMBER,
     37     EuropeanNumberSeparator = U_EUROPEAN_NUMBER_SEPARATOR,
     38     EuropeanNumberTerminator = U_EUROPEAN_NUMBER_TERMINATOR,
     39     ArabicNumber = U_ARABIC_NUMBER,
     40     CommonNumberSeparator = U_COMMON_NUMBER_SEPARATOR,
     41     BlockSeparator = U_BLOCK_SEPARATOR,
     42     SegmentSeparator = U_SEGMENT_SEPARATOR,
     43     WhiteSpaceNeutral = U_WHITE_SPACE_NEUTRAL,
     44     OtherNeutral = U_OTHER_NEUTRAL,
     45     LeftToRightEmbedding = U_LEFT_TO_RIGHT_EMBEDDING,
     46     LeftToRightOverride = U_LEFT_TO_RIGHT_OVERRIDE,
     47     RightToLeftArabic = U_RIGHT_TO_LEFT_ARABIC,
     48     RightToLeftEmbedding = U_RIGHT_TO_LEFT_EMBEDDING,
     49     RightToLeftOverride = U_RIGHT_TO_LEFT_OVERRIDE,
     50     PopDirectionalFormat = U_POP_DIRECTIONAL_FORMAT,
     51     NonSpacingMark = U_DIR_NON_SPACING_MARK,
     52     BoundaryNeutral = U_BOUNDARY_NEUTRAL
     53 };
     54 
     55 enum DecompositionType {
     56     DecompositionNone = U_DT_NONE,
     57     DecompositionCanonical = U_DT_CANONICAL,
     58     DecompositionCompat = U_DT_COMPAT,
     59     DecompositionCircle = U_DT_CIRCLE,
     60     DecompositionFinal = U_DT_FINAL,
     61     DecompositionFont = U_DT_FONT,
     62     DecompositionFraction = U_DT_FRACTION,
     63     DecompositionInitial = U_DT_INITIAL,
     64     DecompositionIsolated = U_DT_ISOLATED,
     65     DecompositionMedial = U_DT_MEDIAL,
     66     DecompositionNarrow = U_DT_NARROW,
     67     DecompositionNoBreak = U_DT_NOBREAK,
     68     DecompositionSmall = U_DT_SMALL,
     69     DecompositionSquare = U_DT_SQUARE,
     70     DecompositionSub = U_DT_SUB,
     71     DecompositionSuper = U_DT_SUPER,
     72     DecompositionVertical = U_DT_VERTICAL,
     73     DecompositionWide = U_DT_WIDE,
     74 };
     75 
     76 enum CharCategory {
     77     NoCategory =  0,
     78     Other_NotAssigned = U_MASK(U_GENERAL_OTHER_TYPES),
     79     Letter_Uppercase = U_MASK(U_UPPERCASE_LETTER),
     80     Letter_Lowercase = U_MASK(U_LOWERCASE_LETTER),
     81     Letter_Titlecase = U_MASK(U_TITLECASE_LETTER),
     82     Letter_Modifier = U_MASK(U_MODIFIER_LETTER),
     83     Letter_Other = U_MASK(U_OTHER_LETTER),
     84 
     85     Mark_NonSpacing = U_MASK(U_NON_SPACING_MARK),
     86     Mark_Enclosing = U_MASK(U_ENCLOSING_MARK),
     87     Mark_SpacingCombining = U_MASK(U_COMBINING_SPACING_MARK),
     88 
     89     Number_DecimalDigit = U_MASK(U_DECIMAL_DIGIT_NUMBER),
     90     Number_Letter = U_MASK(U_LETTER_NUMBER),
     91     Number_Other = U_MASK(U_OTHER_NUMBER),
     92 
     93     Separator_Space = U_MASK(U_SPACE_SEPARATOR),
     94     Separator_Line = U_MASK(U_LINE_SEPARATOR),
     95     Separator_Paragraph = U_MASK(U_PARAGRAPH_SEPARATOR),
     96 
     97     Other_Control = U_MASK(U_CONTROL_CHAR),
     98     Other_Format = U_MASK(U_FORMAT_CHAR),
     99     Other_PrivateUse = U_MASK(U_PRIVATE_USE_CHAR),
    100     Other_Surrogate = U_MASK(U_SURROGATE),
    101 
    102     Punctuation_Dash = U_MASK(U_DASH_PUNCTUATION),
    103     Punctuation_Open = U_MASK(U_START_PUNCTUATION),
    104     Punctuation_Close = U_MASK(U_END_PUNCTUATION),
    105     Punctuation_Connector = U_MASK(U_CONNECTOR_PUNCTUATION),
    106     Punctuation_Other = U_MASK(U_OTHER_PUNCTUATION),
    107 
    108     Symbol_Math = U_MASK(U_MATH_SYMBOL),
    109     Symbol_Currency = U_MASK(U_CURRENCY_SYMBOL),
    110     Symbol_Modifier = U_MASK(U_MODIFIER_SYMBOL),
    111     Symbol_Other = U_MASK(U_OTHER_SYMBOL),
    112 
    113     Punctuation_InitialQuote = U_MASK(U_INITIAL_PUNCTUATION),
    114     Punctuation_FinalQuote = U_MASK(U_FINAL_PUNCTUATION)
    115 };
    116 
    117 inline UChar32 foldCase(UChar32 c)
    118 {
    119     return u_foldCase(c, U_FOLD_CASE_DEFAULT);
    120 }
    121 
    122 inline int foldCase(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
    123 {
    124     UErrorCode status = U_ZERO_ERROR;
    125     int realLength = u_strFoldCase(result, resultLength, src, srcLength, U_FOLD_CASE_DEFAULT, &status);
    126     *error = !U_SUCCESS(status);
    127     return realLength;
    128 }
    129 
    130 inline int toLower(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
    131 {
    132     UErrorCode status = U_ZERO_ERROR;
    133     int realLength = u_strToLower(result, resultLength, src, srcLength, "", &status);
    134     *error = !!U_FAILURE(status);
    135     return realLength;
    136 }
    137 
    138 inline UChar32 toLower(UChar32 c)
    139 {
    140     return u_tolower(c);
    141 }
    142 
    143 inline UChar32 toUpper(UChar32 c)
    144 {
    145     return u_toupper(c);
    146 }
    147 
    148 inline int toUpper(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
    149 {
    150     UErrorCode status = U_ZERO_ERROR;
    151     int realLength = u_strToUpper(result, resultLength, src, srcLength, "", &status);
    152     *error = !!U_FAILURE(status);
    153     return realLength;
    154 }
    155 
    156 inline UChar32 toTitleCase(UChar32 c)
    157 {
    158     return u_totitle(c);
    159 }
    160 
    161 inline bool isArabicChar(UChar32 c)
    162 {
    163       return ublock_getCode(c) == UBLOCK_ARABIC;
    164 }
    165 
    166 inline bool isAlphanumeric(UChar32 c)
    167 {
    168     return u_isalnum(c);
    169 }
    170 
    171 inline bool isSeparatorSpace(UChar32 c)
    172 {
    173     return u_charType(c) == U_SPACE_SEPARATOR;
    174 }
    175 
    176 inline bool isPrintableChar(UChar32 c)
    177 {
    178     return !!u_isprint(c);
    179 }
    180 
    181 inline bool isPunct(UChar32 c)
    182 {
    183     return !!u_ispunct(c);
    184 }
    185 
    186 inline bool hasLineBreakingPropertyComplexContext(UChar32 c)
    187 {
    188     return u_getIntPropertyValue(c, UCHAR_LINE_BREAK) == U_LB_COMPLEX_CONTEXT;
    189 }
    190 
    191 inline UChar32 mirroredChar(UChar32 c)
    192 {
    193     return u_charMirror(c);
    194 }
    195 
    196 inline CharCategory category(UChar32 c)
    197 {
    198     return static_cast<CharCategory>(U_GET_GC_MASK(c));
    199 }
    200 
    201 inline Direction direction(UChar32 c)
    202 {
    203     return static_cast<Direction>(u_charDirection(c));
    204 }
    205 
    206 inline bool isLower(UChar32 c)
    207 {
    208     return !!u_islower(c);
    209 }
    210 
    211 inline uint8_t combiningClass(UChar32 c)
    212 {
    213     return u_getCombiningClass(c);
    214 }
    215 
    216 inline DecompositionType decompositionType(UChar32 c)
    217 {
    218     return static_cast<DecompositionType>(u_getIntPropertyValue(c, UCHAR_DECOMPOSITION_TYPE));
    219 }
    220 
    221 inline int umemcasecmp(const UChar* a, const UChar* b, int len)
    222 {
    223     return u_memcasecmp(a, b, len, U_FOLD_CASE_DEFAULT);
    224 }
    225 
    226 } // namespace Unicode
    227 
    228 } // namespace WTF
    229 
    230 #endif // WTF_UNICODE_ICU_H
    231