icuSources/test/testdata/break_rules/line_loose_cj.txt

   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_loose_cj.txt
   7 #
   8 # Reference Line Break rules for intltest rbbi/RBBIMonkeyTest.
   9 # Rules derived from Unicode Standard Annex #14 Revision 40 for Unicode 11.0
  10 #
  11 # Note: Rule syntax and the monkey test itself are still a work in progress.
  12 #       They are expected to change with review and the addition of support for rule tailoring.
  13 #
  14 #         Line Breaking Rules
  15 #         Implement default line breaking as defined by
  16 #         Unicode Standard Annex #14 Revision 34 for Unicode 8.0
  17 #         http://www.unicode.org/reports/tr14/
  18 #         tailored as noted in 2nd paragraph below..
  19 #
  20 #         This tailors the line break behavior to correspond to CSS
  21 #         line-break=loose (BCP47 -u-lb-loose) as defined for Chinese & Japanese.
  22 #         It sets characters of class CJ to behave like ID.
  23 #         In addition, it allows breaks:
  24 #         * before hyphens 2010 & 2013 (both BA) and 301C, 30A0 (both NS)
  25 #         * before iteration marks 3005, 303B, 309D, 309E, 30FD, 30FE (all NS)
  26 #         * between characters of LineBreak class IN such as 2026
  27 #         * before some centered punct 203C, 2047, 2048, 2049, 30FB, FF1A, FF1B,
  28 #           FF65 (all NS) and FF01, FF1F (both EX).
  29 #         * before suffix characters with LineBreak class PO and EastAsianWidth A,F,W;
  30 #           this includes: 00B0 2030 2032 2033 2035 2103 2109 FE6A FF05 FFE0
  31 #         * after prefix characters with LineBreak class PR and EastAsianWidth A,F,W;
  32 #           this includes: 00A4 00B1 20AC 2116 FE69 FF04 FFE1 FFE5 FFE6
  33
  34
  35 type = line;
  36 locale = ja@lb=loose;
  37
  38
  39 AI = [:LineBreak =  Ambiguous:];
  40 AL = [[:LineBreak =  Alphabetic:]];
  41 BAX = [\u2010 \u2013];
  42 BA = [[:LineBreak =  Break_After:] - BAX];
  43 BB = [:LineBreak =  Break_Before:];
  44 BK = [:LineBreak =  Mandatory_Break:];
  45 B2 = [:LineBreak =  Break_Both:];
  46 CB = [:LineBreak =  Contingent_Break:];
  47 CJ = [:LineBreak =  Conditional_Japanese_Starter:];
  48 CL = [:LineBreak =  Close_Punctuation:];
  49 CM = [:LineBreak =  Combining_Mark:];
  50 CP = [:LineBreak =  Close_Parenthesis:];
  51 CR = [:LineBreak =  Carriage_Return:];
  52 EB = [[:LineBreak =  EB:] \U0001F46A-\U0001F46D\U0001F46F\U0001F91D\U0001F93C];
  53 EM = [:LineBreak =  EM:];
  54 EXX = [\uFF01 \uFF1F];
  55 EX = [[:LineBreak =  Exclamation:] - EXX];
  56 GL = [:LineBreak =  Glue:];
  57 HL = [:LineBreak =  Hebrew_Letter:];
  58 HY = [:LineBreak =  Hyphen:];
  59 H2 = [:LineBreak =  H2:];
  60 H3 = [:LineBreak =  H3:];
  61 ID = [[:LineBreak =  Ideographic:] CJ];  # CSS Loose tailoring: CJ resolves to ID
  62 IN = [:LineBreak =  Inseperable:];
  63 IS = [:LineBreak =  Infix_Numeric:];
  64 JL = [:LineBreak =  JL:];
  65 JV = [:LineBreak =  JV:];
  66 JT = [:LineBreak =  JT:];
  67 LF = [:LineBreak =  Line_Feed:];
  68 NL = [:LineBreak =  Next_Line:];
  69 NSX = [\u301C \u30A0 \u3005 \u303B \u309D \u309E \u30FD \u30FE \u203C \u2047 \u2048 \u2049 \u30FB \uFF1A \uFF1B \uFF65];
  70 NS = [[:LineBreak =  Nonstarter:] - NSX];
  71 NU = [:LineBreak =  Numeric:];
  72 OP = [:LineBreak =  Open_Punctuation:];
  73 POX = [\u00B0 \u2030 \u2032 \u2033 \u2035 \u2103 \u2109 \uFE6A \uFF05 \uFFE0];
  74 PO = [[:LineBreak =  Postfix_Numeric:] - POX];
  75 PRX = [\u00A4 \u00B1 \u20AC \u2116 \uFE69 \uFF04 \uFFE1 \uFFE5 \uFFE6];
  76 PR = [[:LineBreak =  Prefix_Numeric:] - PRX];
  77 QU = [:LineBreak =  Quotation:];
  78 RI = [:LineBreak =  Regional_Indicator:];
  79 SA = [:LineBreak =  Complex_Context:];
  80 SG = [:LineBreak =  Surrogate:];
  81 SP = [:LineBreak =  Space:];
  82 SY = [:LineBreak =  Break_Symbols:];
  83 WJ = [:LineBreak =  Word_Joiner:];
  84 XX = [:LineBreak =  Unknown:];
  85 ZW = [:LineBreak =  ZWSpace:];
  86 ZWJ = [:LineBreak =  ZWJ:];
  87
  88 # LB1 - Resolve AI, CB, CJ, SA, SG, and XX into other line breaking classes
  89 AL = [AL AI SG XX ];
  90 dictionary = SA;
  91
  92 # By LB9, a ZWJ also behaves as a CM. Including it in the definition of CM avoids having to explicitly
  93 #         list it in the numerous rules that use CM.
  94 CM = [CM ZWJ];
  95
  96 LB4:        BK ÷;
  97 LB5:        CR LF;
  98 LB5.1:      CR ÷;
  99 LB5.2:      LF ÷;
 100 LB5.3:      NL ÷;
 101
 102 LB6:        . (BK | CR | LF | NL);
 103 LB6.1:      [^BK CR LF NL SP ZW] CM* (BK | CR | LF | NL);
 104
 105 # Rules LB14 - LB17.
 106 # Moved before LB7, because they can match a longer sequence that would also match LB7,
 107 # for example, the sequence "OP CM SP AL" matches LB14 while the prefix of it,
 108 #                           "while only the prefix "OP CM SP" matches LB7.1
 109 LB14:        OP CM* SP* .;
 110 LB15:        QU CM* SP* OP;
 111 LB16:        (CL | CP)CM* SP* NS;
 112 LB17:        B2 CM* SP* B2;
 113
 114 LB7.1:      [^ZW SP] CM* [SP ZW];
 115 LB7.2:      [ZW SP] [SP ZW];
 116
 117 # LB8, ICU differs from UAX-14,
 118 #    ICU:    ZW ÷;
 119 #    UAX 14: ZW SP* ÷;
 120 LB8:        ZW ÷;
 121
 122 # LB8a
 123 #      ZWJ x
 124 #      Don't match a CM on the right - let other rules pick up CM sequences, where
 125 #      the ZWJ behaves as just another generic CM.
 126 LB8a:       ZWJ [^CM];
 127
 128
 129 # LB9:  X CM -> X
 130 # LB10: Unattached CM -> AL
 131
 132 #LB11:       × WJ;
 133 #            WJ ×
 134
 135 LB11.1:      [^SP] CM* WJ;
 136 LB11.2:      SP WJ;
 137 LB11.3:      WJ CM* [^CM];
 138
 139 LB12:        GL CM* [^CM];
 140
 141 LB12a:       [^SP BA BAX HY] CM* GL;
 142
 143 # LB 13 ICU Tailoring, matches tailoring exmaple 8 from UAX 14.
 144 #
 145 #   LB13.1   [^SP] CM* [CL CP EX IS SY]    # original UAX 14 rule.
 146 #   LB13.2   SP    CM* [CL CP EX IS SY]
 147
 148 LB13.1: [^NU SP] CM* [CL CP IS SY];
 149 LB13.2: [^SP] CM* EX;
 150 LB13.2: SP [CL CP EX IS SY];
 151
 152
 153 # LB 14-17 are moved above LB 7.
 154
 155 LB18:        SP ÷;
 156
 157 LB19:        . CM* QU;
 158 LB19.1:      QU CM* [^CM];
 159
 160 # LB 20   Break before and after CB.
 161 #         Interaction with LB8a:  ZWJ x . is tricky because CM includes ZWJ.
 162 #                                 ZWJ acts like a CM to the left, combining with CB.
 163 #                                 ZWJ acts independently to the right, no break after by LB8a.
 164 LB20.1:      . CM* ZWJ CB;
 165 LB20.2:      . CM* ÷ CB;
 166
 167 LB20.3:      CB CM* ZWJ [^CM];
 168 LB20.4:      CB CM* ÷;
 169
 170 # Note: Rule 21a must come before 21 to prevent 21.1 from matching HL BA, then
 171 #       not picking up the continuing match after the BA from 21a.
 172 # LB 21a Don't break after Hebrew + Hyphen
 173 #   HL (HY | BA) x
 174
 175 LB21a:       HL CM* (HY | BA | BAX) CM* [^CM CB]?;
 176
 177 LB21.1:      . CM* [BA HY NS];
 178 LB21.2:      BB CM* [^CM CB];
 179
 180 LB21b:       SY CM* HL;
 181
 182 LB22.1:        (AL | HL | CM) CM* IN;   # The CM is from LB10, treat an unattached CM as AL.
 183 LB22.2:       EX CM* IN;
 184 LB22.3:       (ID | EB | EM) CM* IN;
 185 # LB22.4:       IN CM* IN;  # delete this rule for CSS loose.
 186 LB22.5:       NU CM* IN;
 187
 188 LB23.1:      (AL | HL | CM) CM* NU;
 189 LB23.2:      NU CM* (AL | HL);
 190
 191 LB23a.1:     PR CM* (ID | EB | EM);
 192 LB23a.2:     (ID | EB | EM) CM* PO;
 193
 194 LB24.2:      (PR | PO | POX) CM* (AL | HL);
 195 LB24.3:      (AL | HL | CM) CM* (PR | PO | POX);
 196
 197 # Numbers. Equivalent to Tailoring example 8 from UAx 14.
 198 #          Loose_cj tailoring: do not include $PRX at the beginning or $POX at the end.
 199 LB25:        ((PR | PO | POX)CM*)? ((OP | HY)CM*)? NU (CM*(NU | SY | IS))* (CM*(CL | CP))? (CM*(PR | PRX | PO))?;
 200
 201 LB26.1:      JL CM* (JL | JV | H2 | H3);
 202 LB26.2:      (JV | H2) CM* (JV | JT);
 203 LB26.3:      (JT | H3) CM* JT;
 204
 205 LB27.1:      (JL | JV | JT | H2 | H3) CM* IN;
 206 LB27.2:      (JL | JV | JT | H2 | H3) CM* PO;
 207 LB27.3:      PR CM* (JL | JV | JT | H2 | H3);
 208
 209 # LB28 Do not break between Alphabetics.
 210 #      Unattached (leading) CM treated as AL.
 211 LB28:        (AL | HL | CM)CM* (AL | HL);
 212
 213 LB29:        IS CM* (AL | HL);
 214
 215 # LB30  is adjusted for unattached leading CM being treated as AL.
 216 LB30.1:      (AL | CM | HL | NU) CM* OP;
 217 LB30.2:      CP CM* (AL | HL | NU);
 218
 219 # LB30a  keep pairs of RI together.
 220 LB30a.1:     RI CM* RI              ÷ [^BK CR LF NL SP ZW WJ CL CP EX IS SY GL QU BA HY NS CM];
 221 LB30a.2:     RI CM* RI CM* [CM-ZWJ] ÷ [^BK CR LF NL SP ZW WJ CL CP EX IS SY GL QU BA HY NS CM];
 222 LB30a.3:     RI CM* RI CM* [BK CR LF NL SP ZW WJ GL CL CP EX IS SY QU BA HY NS ZWJ]?;
 223
 224 # LB30b Do not break between Emoji Base and Emoji Modifier
 225 LB30b:       EB CM* EM;
 226
 227 # LB31 Break Everywhere Else.
 228 #      Include combining marks
 229 LB31.1:        . CM* ZWJ [^CM];
 230 LB31.2:        . CM* ÷;