1 # 2 # Copyright (C) 2016 and later: Unicode, Inc. and others. 3 # License & terms of use: http://www.unicode.org/copyright.html 4 # Copyright (c) 2016 International Business Machines Corporation and others. All Rights Reserved. 5 # 6 # file: line_normal_cj.txt 7 # 8 # Reference Line Break rules for intltest rbbi/RBBIMonkeyTest 9 # 10 # Note: Rule syntax and the monkey test itself are still a work in progress. 11 # They are expected to change with review and the addition of support for rule tailoring. 12 # 13 # Line Breaking Rules 14 # Implement default line breaking as defined by 15 # Unicode Standard Annex #14 Revision 34 for Unicode 8.0 16 # http://www.unicode.org/reports/tr14/ 17 # tailored as noted in 2nd paragraph below. 18 # 19 # TODO: Rule LB 8 remains as it was in Unicode 5.2 20 # This is only because of a limitation of ICU break engine implementation, 21 # not because the older behavior is desirable. 22 # 23 # This tailors the line break behavior to correspond to CSS 24 # line-break=normal (BCP47 -u-lb-normal) as defined for Chinese & Japanese. 25 # It sets characters of class CJ to behave like ID. 26 # In addition, it allows breaks: 27 # * before hyphens 2010 & 2013 (both BA) and 301C, 30A0 (both NS) 28 29 type = line; 30 locale = ja@lb=normal; 31 32 AI = [:LineBreak = Ambiguous:]; 33 AL = [:LineBreak = Alphabetic:]; 34 BAX = [\u2010 \u2013]; 35 BA = [[:LineBreak = Break_After:] - BAX]; 36 BB = [:LineBreak = Break_Before:]; 37 BK = [:LineBreak = Mandatory_Break:]; 38 B2 = [:LineBreak = Break_Both:]; 39 CB = [:LineBreak = Contingent_Break:]; 40 CJ = [:LineBreak = Conditional_Japanese_Starter:]; 41 CL = [:LineBreak = Close_Punctuation:]; 42 CM = [:LineBreak = Combining_Mark:]; 43 CP = [:LineBreak = Close_Parenthesis:]; 44 CR = [:LineBreak = Carriage_Return:]; 45 EB = [:LineBreak = EB:]; 46 EM = [:LineBreak = EM:]; 47 EX = [:LineBreak = Exclamation:]; 48 GL = [:LineBreak = Glue:]; 49 HL = [:LineBreak = Hebrew_Letter:]; 50 HY = [:LineBreak = Hyphen:]; 51 H2 = [:LineBreak = H2:]; 52 H3 = [:LineBreak = H3:]; 53 ID = [[:LineBreak = Ideographic:] CJ]; # CSS Normal tailoring: CJ resolves to ID 54 IN = [:LineBreak = Inseperable:]; 55 IS = [:LineBreak = Infix_Numeric:]; 56 JL = [:LineBreak = JL:]; 57 JV = [:LineBreak = JV:]; 58 JT = [:LineBreak = JT:]; 59 LF = [:LineBreak = Line_Feed:]; 60 NL = [:LineBreak = Next_Line:]; 61 NSX = [\u301C \u30A0]; 62 NS = [[:LineBreak = Nonstarter:] - NSX]; 63 NU = [:LineBreak = Numeric:]; 64 OP = [:LineBreak = Open_Punctuation:]; 65 PO = [:LineBreak = Postfix_Numeric:]; 66 PR = [:LineBreak = Prefix_Numeric:]; 67 QU = [:LineBreak = Quotation:]; 68 RI = [:LineBreak = Regional_Indicator:]; 69 SA = [:LineBreak = Complex_Context:]; 70 SG = [:LineBreak = Surrogate:]; 71 SP = [:LineBreak = Space:]; 72 SY = [:LineBreak = Break_Symbols:]; 73 WJ = [:LineBreak = Word_Joiner:]; 74 XX = [:LineBreak = Unknown:]; 75 ZW = [:LineBreak = ZWSpace:]; 76 ZWJ = [:LineBreak = ZWJ:]; 77 78 EmojiNRK = [[\p{Emoji}] - [[RI]\u002a\u00230-9]]; 79 # Data for Extended Pictographic scraped from CLDR common/properties/ExtendedPictographic.txt, r13267 80 Extended_Pict = [\U0001F774-\U0001F77F\U00002700-\U00002701\U00002703-\U00002704\U0000270E\U00002710-\U00002711\U00002765-\U00002767\U0001F030-\U0001F093\U0001F094-\U0001F09F\U0001F10D-\U0001F10F\U0001F12F\U0001F16C-\U0001F16F\U0001F1AD-\U0001F1E5\U0001F260-\U0001F265\U0001F203-\U0001F20F\U0001F23C-\U0001F23F\U0001F249-\U0001F24F\U0001F252-\U0001F25F\U0001F266-\U0001F2FF\U0001F7D5-\U0001F7FF\U0001F000-\U0001F003\U0001F005-\U0001F02B\U0001F02C-\U0001F02F\U0001F322-\U0001F323\U0001F394-\U0001F395\U0001F398\U0001F39C-\U0001F39D\U0001F3F1-\U0001F3F2\U0001F3F6\U0001F4FE\U0001F53E-\U0001F548\U0001F54F\U0001F568-\U0001F56E\U0001F571-\U0001F572\U0001F57B-\U0001F586\U0001F588-\U0001F589\U0001F58E-\U0001F58F\U0001F591-\U0001F594\U0001F597-\U0001F5A3\U0001F5A6-\U0001F5A7\U0001F5A9-\U0001F5B0\U0001F5B3-\U0001F5BB\U0001F5BD-\U0001F5C1\U0001F5C5-\U0001F5D0\U0001F5D4-\U0001F5DB\U0001F5DF-\U0001F5E0\U0001F5E2\U0001F5E4-\U0001F5E7\U0001F5E9-\U0001F5EE\U0001F5F0-\U0001F5F2\U0001F5F4-\U0001F5F9\U00002605\U00002607-\U0000260D\U0000260F-\U00002610\U00002612\U00002616-\U00002617\U00002619-\U0000261C\U0000261E-\U0000261F\U00002621\U00002624-\U00002625\U00002627-\U00002629\U0000262B-\U0000262D\U00002630-\U00002637\U0000263B-\U00002647\U00002654-\U0000265F\U00002661-\U00002662\U00002664\U00002667\U00002669-\U0000267A\U0000267C-\U0000267E\U00002680-\U00002691\U00002695\U00002698\U0000269A\U0000269D-\U0000269F\U000026A2-\U000026A9\U000026AC-\U000026AF\U000026B2-\U000026BC\U000026BF-\U000026C3\U000026C6-\U000026C7\U000026C9-\U000026CD\U000026D0\U000026D2\U000026D5-\U000026E8\U000026EB-\U000026EF\U000026F6\U000026FB-\U000026FC\U000026FE-\U000026FF\U00002388\U0001FA00-\U0001FFFD\U0001F0A0-\U0001F0AE\U0001F0B1-\U0001F0BF\U0001F0C1-\U0001F0CF\U0001F0D1-\U0001F0F5\U0001F0AF-\U0001F0B0\U0001F0C0\U0001F0D0\U0001F0F6-\U0001F0FF\U0001F80C-\U0001F80F\U0001F848-\U0001F84F\U0001F85A-\U0001F85F\U0001F888-\U0001F88F\U0001F8AE-\U0001F8FF\U0001F900-\U0001F90B\U0001F91F\U0001F928-\U0001F92F\U0001F931-\U0001F932\U0001F94C\U0001F95F-\U0001F96B\U0001F992-\U0001F997\U0001F9D0-\U0001F9E6\U0001F90C-\U0001F90F\U0001F93F\U0001F94D-\U0001F94F\U0001F96C-\U0001F97F\U0001F998-\U0001F9BF\U0001F9C1-\U0001F9CF\U0001F9E7-\U0001F9FF\U0001F6C6-\U0001F6CA\U0001F6D3-\U0001F6D4\U0001F6E6-\U0001F6E8\U0001F6EA\U0001F6F1-\U0001F6F2\U0001F6F7-\U0001F6F8\U0001F6D5-\U0001F6DF\U0001F6ED-\U0001F6EF\U0001F6F9-\U0001F6FF]; 81 82 # LB1 - Resolve AI, CB, CJ, SA, SG, and XX into other line breaking classes 83 AL = [AL AI SG XX ]; 84 dictionary = SA; 85 86 # By LB9, a ZWJ also behaves as a CM. Including it in the definition of CM avoids having to explicitly 87 # list it in the numerous rules that use CM. 88 CM = [CM ZWJ]; 89 90 LB4: BK ; 91 LB5: CR LF; 92 LB5.1: CR ; 93 LB5.2: LF ; 94 LB5.3: NL ; 95 96 LB6: . (BK | CR | LF | NL); 97 LB6.1: [^BK CR LF NL SP ZW] CM* (BK | CR | LF | NL); 98 99 # Rules LB14 - LB17. 100 # Moved before LB7, because they can match a longer sequence that would also match LB7, 101 # for example, the sequence "OP CM SP AL" matches LB14 while the prefix of it, 102 # "while only the prefix "OP CM SP" matches LB7.1 103 LB14: OP CM* SP* .; 104 LB15: QU CM* SP* OP; 105 106 # Do not break between closing punctuation and $NS, even with intervening spaces 107 # But DO allow a break between closing punctuation and $NSX, don't include it here 108 LB16: (CL | CP)CM* SP* NS; 109 LB17: B2 CM* SP* B2; 110 111 LB7.1: [^ZW SP] CM* [SP ZW]; 112 LB7.2: [ZW SP] [SP ZW]; 113 114 # LB8, ICU differs from UAX-14, 115 # ICU: ZW ; 116 # UAX 14: ZW SP* ; 117 LB8: ZW ; 118 119 # LB8a 120 # ZWJ x (ID | Extended_Pict | EmojiNRK) 121 LB8a: ZWJ (ID | Extended_Pict | EmojiNRK); 122 123 124 # LB9: X CM -> X 125 # LB10: Unattached CM -> AL 126 127 #LB11: WJ; 128 # WJ 129 130 LB11.1: [^BK CR LF NL SP ZW] CM* WJ; 131 LB11.2: SP WJ; 132 LB11.3: WJ CM* [^CM]; 133 134 LB12: GL CM* [^CM]; 135 136 LB12a: [^SP BA BAX HY] CM* GL; 137 138 # LB 13 ICU Tailoring, matches tailoring exmaple 8 from UAX 14. 139 # 140 # LB13.1 [^SP] CM* [CL CP EX IS SY] # original UAX 14 rule. 141 # LB13.2 SP CM* [CL CP EX IS SY] 142 143 LB13.1: [^NU SP] CM* [CL CP IS SY]; 144 LB13.2: [^SP] CM* EX; 145 LB13.2: SP [CL CP EX IS SY]; 146 147 148 # LB 14-17 are moved above LB 7. 149 150 LB18: SP ; 151 152 LB19: . CM* QU; 153 LB19.1: QU CM* [^CM]; 154 155 # LB 20 Break before and after CB. 156 # Interaction with LB8a: ZWJ x ID is tricky because CM includes ZWJ. 157 # ZWJ acts like a CM to the left, combining with CB. 158 # ZWJ acts independently to the right, no break from ID by LB8a. 159 LB20: . CM* CB; 160 LB20.1a: CB CM* ZWJ (ID | Extended_Pict | EmojiNRK); 161 LB20.1b: CB CM* ; 162 163 # Note: Rule 21a must come before 21 to prevent 21.1 from matching HL BA, then 164 # not picking up the continuing match after the BA from 21a. 165 # TODO: For CJ tailorings (with BAX) does this rule want to include BAX? If so, 166 # should "HL BAX" not break when followed by a CB? Thats what the current 167 # rules do, which is why "[^CM CB]?" includes the ?. 168 LB21a: HL CM* (HY | BA | BAX) CM* [^CM CB]?; 169 170 # DO allow breaks here before $BAXcm and $NSXcm, so don't include them 171 LB21.1: . CM* [BA HY NS]; 172 LB21.2: BB CM* [^CM CB]; 173 174 LB21b: SY CM* HL; 175 176 LB22.1: (AL | HL | CM) CM* IN; # The CM is from LB10, treat an unattached CM as AL. 177 LB22.2: EX CM* IN; 178 LB22.3: (ID | EB | EM) CM* IN; 179 LB22.4: IN CM* IN; 180 LB22.5: NU CM* IN; 181 182 LB23.1: (AL | HL | CM) CM* NU; 183 LB23.2: NU CM* (AL | HL); 184 185 LB23a.1: PR CM* (ID | EB | EM); 186 LB23a.2: (ID | EB | EM) CM* PO; 187 188 LB24.2: (PR | PO) CM* (AL | HL); 189 LB24.3: (AL | HL | CM) CM* (PR | PO); 190 191 # Numbers. Equivalent to Tailoring example 8 from UAx 14. 192 LB25: ((PR | PO)CM*)? ((OP | HY)CM*)? NU (CM*(NU | SY | IS))* (CM*(CL | CP))? (CM*(PR | PO))?; 193 194 LB26.1: JL CM* (JL | JV | H2 | H3); 195 LB26.2: (JV | H2) CM* (JV | JT); 196 LB26.3: (JT | H3) CM* JT; 197 198 LB27.1: (JL | JV | JT | H2 | H3) CM* IN; 199 LB27.2: (JL | JV | JT | H2 | H3) CM* PO; 200 LB27.3: PR CM* (JL | JV | JT | H2 | H3); 201 202 # LB28 Do not break between Alphabetics. 203 # Unattached (leading) CM treated as AL. 204 LB28: (AL | HL | CM)CM* (AL | HL); 205 206 LB29: IS CM* (AL | HL); 207 208 # LB30 is adjusted for unattached leading CM being treated as AL. 209 LB30.1: (AL | CM | HL | NU) CM* OP; 210 LB30.2: CP CM* (AL | HL | NU); 211 212 # LB31 keep pairs of RI together. 213 LB30a.1: RI CM* RI CM* [BK CR LF NL SP ZW WJ GL CL CP EX IS SY QU BA HY NS]; 214 LB30a.2: RI CM* RI CM* ZWJ (ID | Extended_Pict | EmojiNRK); 215 LB30a.3: RI CM* RI CM* ; 216 217 # LB30b Do not break between Emoji Base and Emoji Modifier 218 LB30b: EB CM* EM; 219 220 # LB31 Break Everywhere Else. 221 # Include combining marks 222 LB31.1: . CM* ZWJ (ID | Extended_Pict | EmojiNRK); 223 LB31.2: . CM* ; 224
