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.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
14type = line;
15locale = en;
16
17
18AI = [:LineBreak =  Ambiguous:];
19AL = [:LineBreak =  Alphabetic:];
20BA = [:LineBreak =  Break_After:];
21BB = [:LineBreak =  Break_Before:];
22BK = [:LineBreak =  Mandatory_Break:];
23B2 = [:LineBreak =  Break_Both:];
24CB = [:LineBreak =  Contingent_Break:];
25CJ = [:LineBreak =  Conditional_Japanese_Starter:];
26CL = [:LineBreak =  Close_Punctuation:];
27CM = [:LineBreak =  Combining_Mark:];
28CP = [:LineBreak =  Close_Parenthesis:];
29CR = [:LineBreak =  Carriage_Return:];
30EB = [[:LineBreak =  EB:]\U0001F3C2\U0001F3C7\U0001F3CC\U0001F46A-\U0001F46D\U0001F46F\U0001F574\U0001F6CC];
31EM = [:LineBreak =  EM:];
32EX = [:LineBreak =  Exclamation:];
33GL = [:LineBreak =  Glue:];
34HL = [:LineBreak =  Hebrew_Letter:];
35HY = [:LineBreak =  Hyphen:];
36H2 = [:LineBreak =  H2:];
37H3 = [:LineBreak =  H3:];
38ID = [:LineBreak =  Ideographic:];
39IN = [:LineBreak =  Inseperable:];
40IS = [:LineBreak =  Infix_Numeric:];
41JL = [:LineBreak =  JL:];
42JV = [:LineBreak =  JV:];
43JT = [:LineBreak =  JT:];
44LF = [:LineBreak =  Line_Feed:];
45NL = [:LineBreak =  Next_Line:];
46NS = [[:LineBreak =  Nonstarter:] CJ];   # CSS Strict tailoring: CJ resolves to NS.
47NU = [:LineBreak =  Numeric:];
48OP = [:LineBreak =  Open_Punctuation:];
49PO = [:LineBreak =  Postfix_Numeric:];
50PR = [:LineBreak =  Prefix_Numeric:];
51QU = [:LineBreak =  Quotation:];
52RI = [:LineBreak =  Regional_Indicator:];
53SA = [:LineBreak =  Complex_Context:];
54SG = [:LineBreak =  Surrogate:];
55SP = [:LineBreak =  Space:];
56SY = [:LineBreak =  Break_Symbols:];
57WJ = [:LineBreak =  Word_Joiner:];
58XX = [:LineBreak =  Unknown:];
59ZW = [:LineBreak =  ZWSpace:];
60ZWJ = [:LineBreak =  ZWJ:];
61
62EmojiNRK = [[\p{Emoji}] - [[RI]\u002a\u00230-9©®™〰〽]];
63# Data for Extended Pictographic scraped from CLDR common/properties/ExtendedPictographic.txt, r12773
64Extended_Pict = [\U0001F774-\U0001F77F\u2700-\u2701\u2703-\u2704\u270E\u2710-\u2711\u2765-\u2767\U0001F030-\U0001F093\U0001F094-\U0001F09F\U0001F10D-\U0001F10F\U0001F12F\U0001F16C-\U0001F16F\U0001F1AD-\U0001F1E5\U0001F203-\U0001F20F\U0001F23C-\U0001F23F\U0001F249-\U0001F24F\U0001F252-\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\u2605\u2607-\u260D\u260F-\u2610\u2612\u2616-\u2617\u2619-\u261C\u261E-\u261F\u2621\u2624-\u2625\u2627-\u2629\u262B-\u262D\u2630-\u2637\u263B-\u2647\u2654-\u265F\u2661-\u2662\u2664\u2667\u2669-\u267A\u267C-\u267E\u2680-\u2691\u2695\u2698\u269A\u269D-\u269F\u26A2-\u26A9\u26AC-\u26AF\u26B2-\u26BC\u26BF-\u26C3\u26C6-\u26C7\u26C9-\u26CD\u26D0\u26D2\u26D5-\u26E8\u26EB-\u26EF\u26F6\u26FB-\u26FC\u26FE-\u26FF\u2388\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-\U0001F90F\U0001F91F\U0001F928-\U0001F92F\U0001F931-\U0001F932\U0001F93F\U0001F94C-\U0001F94F\U0001F95F-\U0001F97F\U0001F992-\U0001F9BF\U0001F9C1-\U0001F9FF\U0001F6C6-\U0001F6CA\U0001F6E6-\U0001F6E8\U0001F6EA\U0001F6F1-\U0001F6F2\U0001F6D3-\U0001F6DF\U0001F6ED-\U0001F6EF\U0001F6F7-\U0001F6FF];
65
66# LB1 - Resolve AI, CB, CJ, SA, SG, and XX into other line breaking classes
67AL = [AL AI SG XX ];
68dictionary = SA;
69
70# By LB9, a ZWJ also behaves as a CM. Including it in the definition of CM avoids having to explicitly
71#         list it in the numerous rules that use CM.
72CM = [CM ZWJ];
73
74LB4:        BK ÷;
75LB5:        CR LF;
76LB5.1:      CR ÷;
77LB5.2:      LF ÷;
78LB5.3:      NL ÷;
79
80LB6:        . (BK | CR | LF | NL);
81LB6.1:      [^BK CR LF NL SP ZW] CM* (BK | CR | LF | NL);
82
83# Rules LB14 - LB17.
84# Moved before LB7, because they can match a longer sequence that would also match LB7,
85# for example, the sequence "OP CM SP AL" matches LB14 while the prefix of it,
86#                           "while only the prefix "OP CM SP" matches LB7.1
87LB14:        OP CM* SP* .;
88LB15:        QU CM* SP* OP;
89LB16:        (CL | CP)CM* SP* NS;
90LB17:        B2 CM* SP* B2;
91
92LB7.1:      [^ZW SP] CM* [SP ZW];
93LB7.2:      [ZW SP] [SP ZW];
94
95# LB8, ICU differs from UAX-14,
96#    ICU:    ZW ÷;
97#    UAX 14: ZW SP* ÷;
98LB8:        ZW ÷;
99
100# LB8a
101#      ZWJ x (ID | Extended_Pict | EmojiNRK)
102LB8a:       ZWJ (ID | Extended_Pict | EmojiNRK);
103
104
105# LB9:  X CM -> X
106# LB10: Unattached CM -> AL
107
108#LB11:       × WJ;
109#            WJ ×
110
111LB11.1:      [^BK CR LF NL SP ZW] CM* WJ;
112LB11.2:      SP WJ;
113LB11.3:      WJ CM* [^CM];
114
115LB12:        GL CM* [^CM];
116
117LB12a:       [^SP BA HY] CM* GL;
118
119# LB 13 ICU Tailoring, matches tailoring exmaple 8 from UAX 14.
120#
121#   LB13.1   [^SP] CM* [CL CP EX IS SY]    # original UAX 14 rule.
122#   LB13.2   SP    CM* [CL CP EX IS SY]
123
124LB13.1: [^NU SP] CM* [CL CP IS SY];
125LB13.2: [^SP] CM* EX;
126LB13.2: SP [CL CP EX IS SY];
127
128
129# LB 14-17 are moved above LB 7.
130
131LB18:        SP ÷;
132
133LB19:        . CM* QU;
134LB19.1:      QU CM* [^CM];
135
136# LB 20   Break before and after CB.
137#         Interaction with LB8a:  ZWJ x ID is tricky because CM includes ZWJ.
138#                                 ZWJ acts like a CM to the left, combining with CB.
139#                                 ZWJ acts independently to the right, no break from ID by LB8a.
140LB20:        . CM* ÷ CB;
141LB20.1a:     CB CM* ZWJ (ID | Extended_Pict | EmojiNRK);
142LB20.1b:      CB CM* ÷;
143
144# Note: Rule 21a must come before 21 to prevent 21.1 from matching HL BA, then
145#       not picking up the continuing match after the BA from 21a.
146LB21a:       HL CM* (HY | BA) CM* [^CM CB];
147
148LB21.1:      . CM* [BA HY NS];
149LB21.2:      BB CM* [^CM CB];
150
151LB21b:       SY CM* HL;
152
153LB22.1:        (AL | HL | CM) CM* IN;   # The CM is from LB10, treat an unattached CM as AL.
154LB22.2:       EX CM* IN;
155LB22.3:       (ID | EB | EM) CM* IN;
156LB22.4:       IN CM* IN;
157LB22.5:       NU CM* IN;
158
159LB23.1:      (AL | HL | CM) CM* NU;
160LB23.2:      NU CM* (AL | HL);
161
162LB23a.1:     PR CM* (ID | EB | EM);
163LB23a.2:     (ID | EB | EM) CM* PO;
164
165LB24.2:      (PR | PO) CM* (AL | HL);
166LB24.3:      (AL | HL | CM) CM* (PR | PO);
167
168# Numbers. Equivalent to Tailoring example 8 from UAX 14.
169LB25:        ((PR | PO)CM*)? ((OP | HY)CM*)? NU (CM*(NU | SY | IS))* (CM*(CL | CP))? (CM*(PR | PO))?;
170
171LB26.1:      JL CM* (JL | JV | H2 | H3);
172LB26.2:      (JV | H2) CM* (JV | JT);
173LB26.3:      (JT | H3) CM* JT;
174
175LB27.1:      (JL | JV | JT | H2 | H3) CM* IN;
176LB27.2:      (JL | JV | JT | H2 | H3) CM* PO;
177LB27.3:      PR CM* (JL | JV | JT | H2 | H3);
178
179# LB28 Do not break between Alphabetics.
180#      Unattached (leading) CM treated as AL.
181LB28:        (AL | HL | CM)CM* (AL | HL);
182
183LB29:        IS CM* (AL | HL);
184
185# LB30  is adjusted for unattached leading CM being treated as AL.
186LB30.1:      (AL | CM | HL | NU) CM* OP;
187LB30.2:      CP CM* (AL | HL | NU);
188
189# LB31  keep pairs of RI together.
190LB30a.1:     RI CM* RI CM* [BK CR LF NL SP ZW WJ GL CL CP EX IS SY QU BA HY NS];
191LB30a.2:     RI CM* RI CM* ZWJ (ID | Extended_Pict | EmojiNRK);
192LB30a.3:     RI CM* RI CM* ÷;
193
194# LB30b Do not break between Emoji Base and Emoji Modifier
195LB30b:       EB CM* EM;
196
197# LB31 Break Everywhere Else.
198#      Include combining marks
199LB31.1:        . CM* ZWJ (ID | Extended_Pict | EmojiNRK);
200LB31.2:        . CM* ÷;
201