1// Copyright (C) 2016 and later: Unicode, Inc. and others. 2// License & terms of use: http://www.unicode.org/copyright.html 3/* 4******************************************************************************* 5* Copyright (C) 2013-2016, International Business Machines 6* Corporation and others. All Rights Reserved. 7******************************************************************************* 8* file name: uscript_props.cpp 9* encoding: US-ASCII 10* tab size: 8 (not used) 11* indentation:4 12* 13* created on: 2013feb16 14* created by: Markus W. Scherer 15*/ 16 17#include "unicode/utypes.h" 18#include "unicode/unistr.h" 19#include "unicode/uscript.h" 20#include "unicode/utf16.h" 21#include "ustr_imp.h" 22#include "cmemory.h" 23 24namespace { 25 26// Script metadata (script properties). 27// See http://unicode.org/cldr/trac/browser/trunk/common/properties/scriptMetadata.txt 28 29// 0 = NOT_ENCODED, no sample character, default false script properties. 30// Bits 20.. 0: sample character 31 32// Bits 23..21: usage 33const int32_t UNKNOWN = 1 << 21; 34const int32_t EXCLUSION = 2 << 21; 35const int32_t LIMITED_USE = 3 << 21; 36const int32_t ASPIRATIONAL = 4 << 21; 37const int32_t RECOMMENDED = 5 << 21; 38 39// Bits 31..24: Single-bit flags 40const int32_t RTL = 1 << 24; 41const int32_t LB_LETTERS = 1 << 25; 42const int32_t CASED = 1 << 26; 43 44const int32_t SCRIPT_PROPS[] = { 45 // Begin copy-paste output from 46 // tools/trunk/unicode/py/parsescriptmetadata.py 47 0x0040 | RECOMMENDED, // Zyyy 48 0x0308 | RECOMMENDED, // Zinh 49 0x0628 | RECOMMENDED | RTL, // Arab 50 0x0531 | RECOMMENDED | CASED, // Armn 51 0x0995 | RECOMMENDED, // Beng 52 0x3105 | RECOMMENDED | LB_LETTERS, // Bopo 53 0x13C4 | LIMITED_USE | CASED, // Cher 54 0x03E2 | EXCLUSION | CASED, // Copt 55 0x042F | RECOMMENDED | CASED, // Cyrl 56 0x10414 | EXCLUSION | CASED, // Dsrt 57 0x0905 | RECOMMENDED, // Deva 58 0x12A0 | RECOMMENDED, // Ethi 59 0x10D3 | RECOMMENDED, // Geor 60 0x10330 | EXCLUSION, // Goth 61 0x03A9 | RECOMMENDED | CASED, // Grek 62 0x0A95 | RECOMMENDED, // Gujr 63 0x0A15 | RECOMMENDED, // Guru 64 0x5B57 | RECOMMENDED | LB_LETTERS, // Hani 65 0xAC00 | RECOMMENDED, // Hang 66 0x05D0 | RECOMMENDED | RTL, // Hebr 67 0x304B | RECOMMENDED | LB_LETTERS, // Hira 68 0x0C95 | RECOMMENDED, // Knda 69 0x30AB | RECOMMENDED | LB_LETTERS, // Kana 70 0x1780 | RECOMMENDED | LB_LETTERS, // Khmr 71 0x0EA5 | RECOMMENDED | LB_LETTERS, // Laoo 72 0x004C | RECOMMENDED | CASED, // Latn 73 0x0D15 | RECOMMENDED, // Mlym 74 0x1826 | ASPIRATIONAL, // Mong 75 0x1000 | RECOMMENDED | LB_LETTERS, // Mymr 76 0x168F | EXCLUSION, // Ogam 77 0x10300 | EXCLUSION, // Ital 78 0x0B15 | RECOMMENDED, // Orya 79 0x16A0 | EXCLUSION, // Runr 80 0x0D85 | RECOMMENDED, // Sinh 81 0x0710 | LIMITED_USE | RTL, // Syrc 82 0x0B95 | RECOMMENDED, // Taml 83 0x0C15 | RECOMMENDED, // Telu 84 0x078C | RECOMMENDED | RTL, // Thaa 85 0x0E17 | RECOMMENDED | LB_LETTERS, // Thai 86 0x0F40 | RECOMMENDED, // Tibt 87 0x14C0 | ASPIRATIONAL, // Cans 88 0xA288 | ASPIRATIONAL | LB_LETTERS, // Yiii 89 0x1703 | EXCLUSION, // Tglg 90 0x1723 | EXCLUSION, // Hano 91 0x1743 | EXCLUSION, // Buhd 92 0x1763 | EXCLUSION, // Tagb 93 0x280E | UNKNOWN, // Brai 94 0x10800 | EXCLUSION | RTL, // Cprt 95 0x1900 | LIMITED_USE, // Limb 96 0x10000 | EXCLUSION, // Linb 97 0x10480 | EXCLUSION, // Osma 98 0x10450 | EXCLUSION, // Shaw 99 0x1950 | LIMITED_USE | LB_LETTERS, // Tale 100 0x10380 | EXCLUSION, // Ugar 101 0, 102 0x1A00 | EXCLUSION, // Bugi 103 0x2C00 | EXCLUSION | CASED, // Glag 104 0x10A00 | EXCLUSION | RTL, // Khar 105 0xA800 | LIMITED_USE, // Sylo 106 0x1980 | LIMITED_USE | LB_LETTERS, // Talu 107 0x2D30 | ASPIRATIONAL, // Tfng 108 0x103A0 | EXCLUSION, // Xpeo 109 0x1B05 | LIMITED_USE, // Bali 110 0x1BC0 | LIMITED_USE, // Batk 111 0, 112 0x11005 | EXCLUSION, // Brah 113 0xAA00 | LIMITED_USE, // Cham 114 0, 115 0, 116 0, 117 0, 118 0x13153 | EXCLUSION, // Egyp 119 0, 120 0x5B57 | RECOMMENDED | LB_LETTERS, // Hans 121 0x5B57 | RECOMMENDED | LB_LETTERS, // Hant 122 0x16B1C | EXCLUSION, // Hmng 123 0x10CA1 | EXCLUSION | RTL | CASED, // Hung 124 0, 125 0xA984 | LIMITED_USE, // Java 126 0xA90A | LIMITED_USE, // Kali 127 0, 128 0, 129 0x1C00 | LIMITED_USE, // Lepc 130 0x10647 | EXCLUSION, // Lina 131 0x0840 | LIMITED_USE | RTL, // Mand 132 0, 133 0x10980 | EXCLUSION | RTL, // Mero 134 0x07CA | LIMITED_USE | RTL, // Nkoo 135 0x10C00 | EXCLUSION | RTL, // Orkh 136 0x1036B | EXCLUSION, // Perm 137 0xA840 | EXCLUSION, // Phag 138 0x10900 | EXCLUSION | RTL, // Phnx 139 0x16F00 | ASPIRATIONAL, // Plrd 140 0, 141 0, 142 0, 143 0, 144 0, 145 0, 146 0xA549 | LIMITED_USE, // Vaii 147 0, 148 0x12000 | EXCLUSION, // Xsux 149 0, 150 0xFDD0 | UNKNOWN, // Zzzz 151 0x102A0 | EXCLUSION, // Cari 152 0x304B | RECOMMENDED | LB_LETTERS, // Jpan 153 0x1A20 | LIMITED_USE | LB_LETTERS, // Lana 154 0x10280 | EXCLUSION, // Lyci 155 0x10920 | EXCLUSION | RTL, // Lydi 156 0x1C5A | LIMITED_USE, // Olck 157 0xA930 | EXCLUSION, // Rjng 158 0xA882 | LIMITED_USE, // Saur 159 0x1D850 | EXCLUSION, // Sgnw 160 0x1B83 | LIMITED_USE, // Sund 161 0, 162 0xABC0 | LIMITED_USE, // Mtei 163 0x10840 | EXCLUSION | RTL, // Armi 164 0x10B00 | EXCLUSION | RTL, // Avst 165 0x11103 | LIMITED_USE, // Cakm 166 0xAC00 | RECOMMENDED, // Kore 167 0x11083 | EXCLUSION, // Kthi 168 0x10AD8 | EXCLUSION | RTL, // Mani 169 0x10B60 | EXCLUSION | RTL, // Phli 170 0x10B8F | EXCLUSION | RTL, // Phlp 171 0, 172 0x10B40 | EXCLUSION | RTL, // Prti 173 0x0800 | EXCLUSION | RTL, // Samr 174 0xAA80 | LIMITED_USE | LB_LETTERS, // Tavt 175 0, 176 0, 177 0xA6A0 | LIMITED_USE, // Bamu 178 0xA4D0 | LIMITED_USE, // Lisu 179 0, 180 0x10A60 | EXCLUSION | RTL, // Sarb 181 0x16AE6 | EXCLUSION, // Bass 182 0x1BC20 | EXCLUSION, // Dupl 183 0x10500 | EXCLUSION, // Elba 184 0x11315 | EXCLUSION, // Gran 185 0, 186 0, 187 0x1E802 | EXCLUSION | RTL, // Mend 188 0x109A0 | EXCLUSION | RTL, // Merc 189 0x10A95 | EXCLUSION | RTL, // Narb 190 0x10896 | EXCLUSION | RTL, // Nbat 191 0x10873 | EXCLUSION | RTL, // Palm 192 0x112BE | EXCLUSION, // Sind 193 0x118B4 | EXCLUSION | CASED, // Wara 194 0, 195 0, 196 0x16A4F | EXCLUSION, // Mroo 197 0, 198 0x11183 | EXCLUSION, // Shrd 199 0x110D0 | EXCLUSION, // Sora 200 0x11680 | EXCLUSION, // Takr 201 0x18229 | EXCLUSION | LB_LETTERS, // Tang 202 0, 203 0x14400 | EXCLUSION, // Hluw 204 0x11208 | EXCLUSION, // Khoj 205 0x11484 | EXCLUSION, // Tirh 206 0x10537 | EXCLUSION, // Aghb 207 0x11152 | EXCLUSION, // Mahj 208 0x11717 | EXCLUSION | LB_LETTERS, // Ahom 209 0x108F4 | EXCLUSION | RTL, // Hatr 210 0x1160E | EXCLUSION, // Modi 211 0x1128F | EXCLUSION, // Mult 212 0x11AC0 | EXCLUSION, // Pauc 213 0x1158E | EXCLUSION, // Sidd 214 0x1E909 | LIMITED_USE | RTL | CASED, // Adlm 215 0x11C0E | EXCLUSION, // Bhks 216 0x11C72 | EXCLUSION, // Marc 217 0x11412 | LIMITED_USE, // Newa 218 0x104B5 | LIMITED_USE | CASED, // Osge 219 0x5B57 | RECOMMENDED | LB_LETTERS, // Hanb 220 0x1112 | RECOMMENDED, // Jamo 221 0, 222 // End copy-paste from parsescriptmetadata.py 223}; 224 225int32_t getScriptProps(UScriptCode script) { 226 if (0 <= script && script < UPRV_LENGTHOF(SCRIPT_PROPS)) { 227 return SCRIPT_PROPS[script]; 228 } else { 229 return 0; 230 } 231} 232 233} // namespace 234 235U_CAPI int32_t U_EXPORT2 236uscript_getSampleString(UScriptCode script, UChar *dest, int32_t capacity, UErrorCode *pErrorCode) { 237 if(U_FAILURE(*pErrorCode)) { return 0; } 238 if(capacity < 0 || (capacity > 0 && dest == NULL)) { 239 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR; 240 return 0; 241 } 242 int32_t sampleChar = getScriptProps(script) & 0x1fffff; 243 int32_t length; 244 if(sampleChar == 0) { 245 length = 0; 246 } else { 247 length = U16_LENGTH(sampleChar); 248 if(length <= capacity) { 249 int32_t i = 0; 250 U16_APPEND_UNSAFE(dest, i, sampleChar); 251 } 252 } 253 return u_terminateUChars(dest, capacity, length, pErrorCode); 254} 255 256U_COMMON_API icu::UnicodeString U_EXPORT2 257uscript_getSampleUnicodeString(UScriptCode script) { 258 icu::UnicodeString sample; 259 int32_t sampleChar = getScriptProps(script) & 0x1fffff; 260 if(sampleChar != 0) { 261 sample.append(sampleChar); 262 } 263 return sample; 264} 265 266U_CAPI UScriptUsage U_EXPORT2 267uscript_getUsage(UScriptCode script) { 268 return (UScriptUsage)((getScriptProps(script) >> 21) & 7); 269} 270 271U_CAPI UBool U_EXPORT2 272uscript_isRightToLeft(UScriptCode script) { 273 return (getScriptProps(script) & RTL) != 0; 274} 275 276U_CAPI UBool U_EXPORT2 277uscript_breaksBetweenLetters(UScriptCode script) { 278 return (getScriptProps(script) & LB_LETTERS) != 0; 279} 280 281U_CAPI UBool U_EXPORT2 282uscript_isCased(UScriptCode script) { 283 return (getScriptProps(script) & CASED) != 0; 284} 285