bool Character::isCJKIdeograph(UChar32 c)
{
static const UChar32 cjkIdeographRanges[] = {
// CJK Radicals Supplement and Kangxi Radicals.
0x2E80, 0x2FDF,
// CJK Strokes.
0x31C0, 0x31EF,
// CJK Unified Ideographs Extension A.
0x3400, 0x4DBF,
// The basic CJK Unified Ideographs block.
0x4E00, 0x9FFF,
// CJK Compatibility Ideographs.
0xF900, 0xFAFF,
// CJK Unified Ideographs Extension B.
0x20000, 0x2A6DF,
// CJK Unified Ideographs Extension C.
// CJK Unified Ideographs Extension D.
0x2A700, 0x2B81F,
// CJK Compatibility Ideographs Supplement.
0x2F800, 0x2FA1F
};
static size_t cjkIdeographRangesCount = WTF_ARRAY_LENGTH(cjkIdeographRanges);
// Early out
if (c < cjkIdeographRanges[0] || c > cjkIdeographRanges[cjkIdeographRangesCount - 1])
return false;
return valueInIntervalList(cjkIdeographRanges, c);
}
bool Character::isCJKIdeographOrSymbol(UChar32 c)
{
// Likely common case
if (c < 0x2C7)
return false;
// Hash lookup for isolated symbols (those not part of a contiguous range)
static HashSet<UChar32>* cjkIsolatedSymbols = 0;
if (!cjkIsolatedSymbols) {
cjkIsolatedSymbols = new HashSet<UChar32>();
for (size_t i = 0; i < WTF_ARRAY_LENGTH(cjkIsolatedSymbolsArray); ++i)
cjkIsolatedSymbols->add(cjkIsolatedSymbolsArray[i]);
}
if (cjkIsolatedSymbols->contains(c))
return true;
if (isCJKIdeograph(c))
return true;
static const UChar32 cjkSymbolRanges[] = {
0x2156, 0x215A,
0x2160, 0x216B,
0x2170, 0x217B,
0x23BE, 0x23CC,
0x2460, 0x2492,
0x249C, 0x24FF,
0x25CE, 0x25D3,
0x25E2, 0x25E6,
0x2600, 0x2603,
0x2660, 0x266F,
0x2672, 0x267D,
0x2776, 0x277F,
// Ideographic Description Characters, with CJK Symbols and Punctuation, excluding 0x3030.
// Then Hiragana 0x3040 .. 0x309F, Katakana 0x30A0 .. 0x30FF, Bopomofo 0x3100 .. 0x312F
0x2FF0, 0x302F,
0x3031, 0x312F,
// More Bopomofo and Bopomofo Extended 0x31A0 .. 0x31BF
0x3190, 0x31BF,
// Enclosed CJK Letters and Months (0x3200 .. 0x32FF).
// CJK Compatibility (0x3300 .. 0x33FF).
0x3200, 0x33FF,
0xF860, 0xF862,
// CJK Compatibility Forms.
0xFE30, 0xFE4F,
// Halfwidth and Fullwidth Forms
// Usually only used in CJK
0xFF00, 0xFF0C,
0xFF0E, 0xFF1A,
0xFF1F, 0xFFEF,
// Emoji.
0x1F110, 0x1F129,
0x1F130, 0x1F149,
0x1F150, 0x1F169,
0x1F170, 0x1F189,
0x1F200, 0x1F6FF
};
return valueInIntervalList(cjkSymbolRanges, c);
}
CodePath Character::characterRangeCodePath(const UChar* characters, unsigned len)
{
static const UChar complexCodePathRanges[] = {
// U+02E5 through U+02E9 (Modifier Letters : Tone letters)
0x2E5, 0x2E9,
// U+0300 through U+036F Combining diacritical marks
0x300, 0x36F,
// U+0591 through U+05CF excluding U+05BE Hebrew combining marks, ...
0x0591, 0x05BD,
// ... Hebrew punctuation Paseq, Sof Pasuq and Nun Hafukha
0x05BF, 0x05CF,
// U+0600 through U+109F Arabic, Syriac, Thaana, NKo, Samaritan, Mandaic,
// Devanagari, Bengali, Gurmukhi, Gujarati, Oriya, Tamil, Telugu, Kannada,
// Malayalam, Sinhala, Thai, Lao, Tibetan, Myanmar
0x0600, 0x109F,
// U+1100 through U+11FF Hangul Jamo (only Ancient Korean should be left
// here if you precompose; Modern Korean will be precomposed as a result of step A)
0x1100, 0x11FF,
// U+135D through U+135F Ethiopic combining marks
0x135D, 0x135F,
// U+1780 through U+18AF Tagalog, Hanunoo, Buhid, Taghanwa,Khmer, Mongolian
0x1700, 0x18AF,
// U+1900 through U+194F Limbu (Unicode 4.0)
0x1900, 0x194F,
// U+1980 through U+19DF New Tai Lue
0x1980, 0x19DF,
// U+1A00 through U+1CFF Buginese, Tai Tham, Balinese, Batak, Lepcha, Vedic
0x1A00, 0x1CFF,
// U+1DC0 through U+1DFF Comining diacritical mark supplement
0x1DC0, 0x1DFF,
// U+20D0 through U+20FF Combining marks for symbols
0x20D0, 0x20FF,
// U+2CEF through U+2CF1 Combining marks for Coptic
0x2CEF, 0x2CF1,
// U+302A through U+302F Ideographic and Hangul Tone marks
0x302A, 0x302F,
// U+A67C through U+A67D Combining marks for old Cyrillic
0xA67C, 0xA67D,
// U+A6F0 through U+A6F1 Combining mark for Bamum
0xA6F0, 0xA6F1,
// U+A800 through U+ABFF Nagri, Phags-pa, Saurashtra, Devanagari Extended,
// Hangul Jamo Ext. A, Javanese, Myanmar Extended A, Tai Viet, Meetei Mayek
0xA800, 0xABFF,
// U+D7B0 through U+D7FF Hangul Jamo Ext. B
0xD7B0, 0xD7FF,
// U+FE00 through U+FE0F Unicode variation selectors
0xFE00, 0xFE0F,
// U+FE20 through U+FE2F Combining half marks
0xFE20, 0xFE2F
};
CodePath result = SimplePath;
for (unsigned i = 0; i < len; i++) {
const UChar c = characters[i];
// Shortcut for common case
if (c < 0x2E5)
continue;
// U+1E00 through U+2000 characters with diacritics and stacked diacritics
if (c >= 0x1E00 && c <= 0x2000) {
result = SimpleWithGlyphOverflowPath;
continue;
}
// Surrogate pairs
if (c > 0xD7FF && c <= 0xDBFF) {
if (i == len - 1)
continue;
UChar next = characters[++i];
if (!U16_IS_TRAIL(next))
continue;
UChar32 supplementaryCharacter = U16_GET_SUPPLEMENTARY(c, next);
if (supplementaryCharacter < 0x1F1E6) // U+1F1E6 through U+1F1FF Regional Indicator Symbols
continue;
if (supplementaryCharacter <= 0x1F1FF)
return ComplexPath;
if (supplementaryCharacter < 0xE0100) // U+E0100 through U+E01EF Unicode variation selectors.
continue;
if (supplementaryCharacter <= 0xE01EF)
return ComplexPath;
// FIXME: Check for Brahmi (U+11000 block), Kaithi (U+11080 block) and other complex scripts
// in plane 1 or higher.
continue;
}
// Search for other Complex cases
if (valueInIntervalList(complexCodePathRanges, c))
return ComplexPath;
}
return result;
}
bool Character::isUprightInMixedVertical(UChar32 character)
{
// Fast path for common non-CJK
if (character < 0x000A7)
return false;
// Fast path for common CJK
if (isInRange(character, 0x02E80, 0x0A4CF))
return true;
if (isInRange(character, 0x0FF01, 0x0FFE7)) {
if (character <= 0x0FF0C || isInRange(character, 0x0FF0E, 0x0FF1B)
|| isInRange(character, 0x0FF1F, 0x0FF60) || character >= 0x0FFE0)
return true;
return false;
}
// Fast path for medium-common non-CJK
if (character == 0x000A7 || character == 0x000A9 || character == 0x000AE)
return true;
if (character == 0x000B1 || character == 0x000BC || character == 0x000BD || character == 0x000BE)
return true;
if (character == 0x000D7 || character == 0x000F7)
return true;
if (character < 0x002EA)
return false;
static const UChar32 uprightRanges[] = {
// Spacing Modifier Letters (Part of)
0x002EA, 0x002EB,
// Hangul Jamo
0x01100, 0x011FF,
// Unified Canadian Aboriginal Syllabics
0x01401, 0x0167F,
// Unified Canadian Aboriginal Syllabics Extended
0x018B0, 0x018FF,
// General Punctuation (Part of)
0x02016, 0x02016,
0x02020, 0x02021,
0x02030, 0x02031,
0x0203B, 0x0203C,
0x02042, 0x02042,
0x02047, 0x02049,
0x02051, 0x02051,
0x02065, 0x02069,
// Combining Diacritical Marks for Symbols (Part of)
0x020DD, 0x020E0,
0x020E2, 0x020E4,
// Letterlike Symbols (Part of)/Number Forms
0x02100, 0x02101,
0x02103, 0x02109,
0x0210F, 0x0210F,
0x02113, 0x02114,
0x02116, 0x02117,
0x0211E, 0x02123,
0x02125, 0x02125,
0x02127, 0x02127,
0x02129, 0x02129,
0x0212E, 0x0212E,
0x02135, 0x0213F,
0x02145, 0x0214A,
0x0214C, 0x0214D,
0x0214F, 0x0218F,
// Mathematical Operators (Part of)
0x0221E, 0x0221E,
0x02234, 0x02235,
// Miscellaneous Technical (Part of)
0x02300, 0x02307,
0x0230C, 0x0231F,
0x02324, 0x0232B,
0x0237D, 0x0239A,
0x023BE, 0x023CD,
0x023CF, 0x023CF,
0x023D1, 0x023DB,
0x023E2, 0x02422,
// Control Pictures (Part of)/Optical Character Recognition/Enclosed Alphanumerics
0x02424, 0x024FF,
// Geometric Shapes/Miscellaneous Symbols (Part of)
0x025A0, 0x02619,
0x02620, 0x02767,
0x02776, 0x02793,
// Miscellaneous Symbols and Arrows (Part of)
0x02B12, 0x02B2F,
0x02B50, 0x02B59,
0x02BB8, 0x02BFF,
// Hangul Jamo Extended-A
0x0A960, 0x0A97F,
// Hangul Syllables/Hangul Jamo Extended-B
0x0AC00, 0x0D7FF,
// Private Use Area/CJK Compatibility Ideographs
0x0E000, 0x0FAFF,
// Vertical Forms
0x0FE10, 0x0FE1F,
// CJK Compatibility Forms (Part of)
0x0FE30, 0x0FE48,
// Small Form Variants (Part of)
0x0FE50, 0x0FE57,
0x0FE59, 0x0FE62,
0x0FE67, 0x0FE6F,
// Specials (Part of)
0x0FFF0, 0x0FFF8,
0x0FFFC, 0x0FFFD,
// Meroitic Hieroglyphs
0x10980, 0x1099F,
// Siddham
0x11580, 0x115FF,
// Egyptian Hieroglyphs
0x13000, 0x1342F,
// Kana Supplement
0x1B000, 0x1B0FF,
// Byzantine Musical Symbols/Musical Symbols
0x1D000, 0x1D1FF,
// Tai Xuan Jing Symbols/Counting Rod Numerals
0x1D300, 0x1D37F,
// Mahjong Tiles/Domino Tiles/Playing Cards/Enclosed Alphanumeric Supplement
// Enclosed Ideographic Supplement/Enclosed Ideographic Supplement
// Emoticons/Ornamental Dingbats/Transport and Map Symbols/Alchemical Symbols
// Alchemical Symbols
0x1F000, 0x1F7FF,
// CJK Unified Ideographs Extension B/C/D
// CJK Compatibility Ideographs Supplement
0x20000, 0x2FFFD,
0x30000, 0x3FFFD,
// Supplementary Private Use Area-A
0xF0000, 0xFFFFD,
// Supplementary Private Use Area-B
0x100000, 0x10FFFD,
};
return valueInIntervalList(uprightRanges, character);
}