| /* |
| ******************************************************************************* |
| * Copyright (C) 2013, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| ******************************************************************************* |
| * file name: uscript_props.cpp |
| * encoding: US-ASCII |
| * tab size: 8 (not used) |
| * indentation:4 |
| * |
| * created on: 2013feb16 |
| * created by: Markus W. Scherer |
| */ |
| |
| #include "unicode/utypes.h" |
| #include "unicode/unistr.h" |
| #include "unicode/uscript.h" |
| #include "unicode/utf16.h" |
| #include "ustr_imp.h" |
| |
| #define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0])) |
| |
| namespace { |
| |
| // Script metadata (script properties). |
| // See http://unicode.org/cldr/trac/browser/trunk/common/properties/scriptMetadata.txt |
| |
| // 0 = NOT_ENCODED, no sample character, default false script properties. |
| // Bits 20.. 0: sample character |
| |
| // Bits 23..21: usage |
| const int32_t UNKNOWN = 1 << 21; |
| const int32_t EXCLUSION = 2 << 21; |
| const int32_t LIMITED_USE = 3 << 21; |
| const int32_t ASPIRATIONAL = 4 << 21; |
| const int32_t RECOMMENDED = 5 << 21; |
| |
| // Bits 31..24: Single-bit flags |
| const int32_t RTL = 1 << 24; |
| const int32_t LB_LETTERS = 1 << 25; |
| const int32_t CASED = 1 << 26; |
| |
| const int32_t SCRIPT_PROPS[] = { |
| // Begin copy-paste output from |
| // tools/trunk/unicode/py/parsescriptmetadata.py |
| 0x0040 | UNKNOWN, // Zyyy |
| 0x0308 | UNKNOWN, // Zinh |
| 0x0628 | RECOMMENDED | RTL, // Arab |
| 0x0531 | RECOMMENDED | CASED, // Armn |
| 0x0995 | RECOMMENDED, // Beng |
| 0x3105 | RECOMMENDED | LB_LETTERS, // Bopo |
| 0x13C4 | LIMITED_USE, // Cher |
| 0x03E2 | EXCLUSION | CASED, // Copt |
| 0x042F | RECOMMENDED | CASED, // Cyrl |
| 0x10414 | EXCLUSION | CASED, // Dsrt |
| 0x0905 | RECOMMENDED, // Deva |
| 0x12A0 | RECOMMENDED, // Ethi |
| 0x10D3 | RECOMMENDED, // Geor |
| 0x10330 | EXCLUSION, // Goth |
| 0x03A9 | RECOMMENDED | CASED, // Grek |
| 0x0A95 | RECOMMENDED, // Gujr |
| 0x0A15 | RECOMMENDED, // Guru |
| 0x5B57 | RECOMMENDED | LB_LETTERS, // Hani |
| 0xAC00 | RECOMMENDED, // Hang |
| 0x05D0 | RECOMMENDED | RTL, // Hebr |
| 0x304B | RECOMMENDED | LB_LETTERS, // Hira |
| 0x0C95 | RECOMMENDED, // Knda |
| 0x30AB | RECOMMENDED | LB_LETTERS, // Kana |
| 0x1780 | RECOMMENDED | LB_LETTERS, // Khmr |
| 0x0EA5 | RECOMMENDED | LB_LETTERS, // Laoo |
| 0x004C | RECOMMENDED | CASED, // Latn |
| 0x0D15 | RECOMMENDED, // Mlym |
| 0x1826 | ASPIRATIONAL, // Mong |
| 0x1000 | RECOMMENDED | LB_LETTERS, // Mymr |
| 0x168F | EXCLUSION, // Ogam |
| 0x10300 | EXCLUSION, // Ital |
| 0x0B15 | RECOMMENDED, // Orya |
| 0x16A0 | EXCLUSION, // Runr |
| 0x0D85 | RECOMMENDED, // Sinh |
| 0x0710 | LIMITED_USE | RTL, // Syrc |
| 0x0B95 | RECOMMENDED, // Taml |
| 0x0C15 | RECOMMENDED, // Telu |
| 0x078C | RECOMMENDED | RTL, // Thaa |
| 0x0E17 | RECOMMENDED | LB_LETTERS, // Thai |
| 0x0F40 | RECOMMENDED, // Tibt |
| 0x14C0 | ASPIRATIONAL, // Cans |
| 0xA288 | ASPIRATIONAL | LB_LETTERS, // Yiii |
| 0x1703 | EXCLUSION, // Tglg |
| 0x1723 | EXCLUSION, // Hano |
| 0x1743 | EXCLUSION, // Buhd |
| 0x1763 | EXCLUSION, // Tagb |
| 0x2800 | UNKNOWN, // Brai |
| 0x10800 | EXCLUSION | RTL, // Cprt |
| 0x1900 | LIMITED_USE, // Limb |
| 0x10000 | EXCLUSION, // Linb |
| 0x10480 | EXCLUSION, // Osma |
| 0x10450 | EXCLUSION, // Shaw |
| 0x1950 | LIMITED_USE | LB_LETTERS, // Tale |
| 0x10380 | EXCLUSION, // Ugar |
| 0, |
| 0x1A00 | EXCLUSION, // Bugi |
| 0x2C00 | EXCLUSION | CASED, // Glag |
| 0x10A00 | EXCLUSION | RTL, // Khar |
| 0xA800 | LIMITED_USE, // Sylo |
| 0x1980 | LIMITED_USE | LB_LETTERS, // Talu |
| 0x2D30 | ASPIRATIONAL, // Tfng |
| 0x103A0 | EXCLUSION, // Xpeo |
| 0x1B05 | LIMITED_USE | LB_LETTERS, // Bali |
| 0x1BC0 | LIMITED_USE, // Batk |
| 0, |
| 0x11005 | EXCLUSION, // Brah |
| 0xAA00 | LIMITED_USE, // Cham |
| 0, |
| 0, |
| 0, |
| 0, |
| 0x13153 | EXCLUSION, // Egyp |
| 0, |
| 0x5B57 | RECOMMENDED | LB_LETTERS, // Hans |
| 0x5B57 | RECOMMENDED | LB_LETTERS, // Hant |
| 0, |
| 0, |
| 0, |
| 0xA984 | LIMITED_USE | LB_LETTERS, // Java |
| 0xA90A | LIMITED_USE, // Kali |
| 0, |
| 0, |
| 0x1C00 | LIMITED_USE, // Lepc |
| 0, |
| 0x0840 | LIMITED_USE | RTL, // Mand |
| 0, |
| 0x10980 | EXCLUSION | RTL, // Mero |
| 0x07CA | LIMITED_USE | RTL, // Nkoo |
| 0x10C00 | EXCLUSION | RTL, // Orkh |
| 0, |
| 0xA840 | EXCLUSION, // Phag |
| 0x10900 | EXCLUSION | RTL, // Phnx |
| 0x16F00 | ASPIRATIONAL, // Plrd |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0xA549 | LIMITED_USE, // Vaii |
| 0, |
| 0x12000 | EXCLUSION, // Xsux |
| 0, |
| 0xFDD0 | UNKNOWN, // Zzzz |
| 0x102A0 | EXCLUSION, // Cari |
| 0x304B | RECOMMENDED | LB_LETTERS, // Jpan |
| 0x1A20 | LIMITED_USE | LB_LETTERS, // Lana |
| 0x10280 | EXCLUSION, // Lyci |
| 0x10920 | EXCLUSION | RTL, // Lydi |
| 0x1C5A | LIMITED_USE, // Olck |
| 0xA930 | EXCLUSION, // Rjng |
| 0xA882 | LIMITED_USE, // Saur |
| 0, |
| 0x1B83 | LIMITED_USE, // Sund |
| 0, |
| 0xABC0 | LIMITED_USE, // Mtei |
| 0x10840 | EXCLUSION | RTL, // Armi |
| 0x10B00 | EXCLUSION | RTL, // Avst |
| 0x11103 | LIMITED_USE, // Cakm |
| 0xAC00 | RECOMMENDED, // Kore |
| 0x11083 | EXCLUSION, // Kthi |
| 0, |
| 0x10B60 | EXCLUSION | RTL, // Phli |
| 0, |
| 0, |
| 0x10B40 | EXCLUSION | RTL, // Prti |
| 0x0800 | EXCLUSION | RTL, // Samr |
| 0xAA80 | LIMITED_USE | LB_LETTERS, // Tavt |
| 0, |
| 0, |
| 0xA6A0 | LIMITED_USE, // Bamu |
| 0xA4D0 | LIMITED_USE, // Lisu |
| 0, |
| 0x10A60 | EXCLUSION | RTL, // Sarb |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0x109A0 | EXCLUSION | RTL, // Merc |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0x11183 | EXCLUSION, // Shrd |
| 0x110D0 | EXCLUSION, // Sora |
| 0x11680 | EXCLUSION, // Takr |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| // End copy-paste from parsescriptmetadata.py |
| }; |
| |
| int32_t getScriptProps(UScriptCode script) { |
| if (0 <= script && script < LENGTHOF(SCRIPT_PROPS)) { |
| return SCRIPT_PROPS[script]; |
| } else { |
| return 0; |
| } |
| } |
| |
| } // namespace |
| |
| U_CAPI int32_t U_EXPORT2 |
| uscript_getSampleString(UScriptCode script, UChar *dest, int32_t capacity, UErrorCode *pErrorCode) { |
| if(U_FAILURE(*pErrorCode)) { return 0; } |
| if(capacity < 0 || (capacity > 0 && dest == NULL)) { |
| *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| int32_t sampleChar = getScriptProps(script) & 0x1fffff; |
| int32_t length; |
| if(sampleChar == 0) { |
| length = 0; |
| } else { |
| length = U16_LENGTH(sampleChar); |
| if(length <= capacity) { |
| int32_t i = 0; |
| U16_APPEND_UNSAFE(dest, i, sampleChar); |
| } |
| } |
| return u_terminateUChars(dest, capacity, length, pErrorCode); |
| } |
| |
| U_COMMON_API icu::UnicodeString U_EXPORT2 |
| uscript_getSampleUnicodeString(UScriptCode script) { |
| icu::UnicodeString sample; |
| int32_t sampleChar = getScriptProps(script) & 0x1fffff; |
| if(sampleChar != 0) { |
| sample.append(sampleChar); |
| } |
| return sample; |
| } |
| |
| U_CAPI UScriptUsage U_EXPORT2 |
| uscript_getUsage(UScriptCode script) { |
| return (UScriptUsage)((getScriptProps(script) >> 21) & 7); |
| } |
| |
| U_CAPI UBool U_EXPORT2 |
| uscript_isRightToLeft(UScriptCode script) { |
| return (getScriptProps(script) & RTL) != 0; |
| } |
| |
| U_CAPI UBool U_EXPORT2 |
| uscript_breaksBetweenLetters(UScriptCode script) { |
| return (getScriptProps(script) & LB_LETTERS) != 0; |
| } |
| |
| U_CAPI UBool U_EXPORT2 |
| uscript_isCased(UScriptCode script) { |
| return (getScriptProps(script) & CASED) != 0; |
| } |
