#
# Copyright (c) 2016, International Business Machines Corporation and others. All Rights Reserved.

# file: grapheme.txt
#
# Reference Grapheme Break rules for intltest rbbi/RBBIMonkeyTest
#
#
# Note: Rule syntax and the monkey test itself are still a work in progress.
#       They are expected to change with review and the addition of support for rule tailoring.

type = grapheme;      # one of grapheme | word | line | sentence
locale = en;

CR                 = [\u000d];
LF                 = [\u000a];

Control            = [[\p{Grapheme_Cluster_Break = Control}]-[:Block=Tags:]];
Extend             = [[\p{Grapheme_Cluster_Break = Extend}][:Block=Tags:]];
ZWJ                = [\u200D];
Regional_Indicator = [\p{Grapheme_Cluster_Break = Regional_Indicator}];
Prepend            = [];
SpacingMark        = [\p{Grapheme_Cluster_Break = SpacingMark}];

#
# Korean Syllable Definitions
#
L       = [\p{Grapheme_Cluster_Break = L}];
V       = [\p{Grapheme_Cluster_Break = V}];
T       = [\p{Grapheme_Cluster_Break = T}];
LV      = [\p{Grapheme_Cluster_Break = LV}];
LVT     = [\p{Grapheme_Cluster_Break = LVT}];

# Emoji defintions

E_Base             = [\u261D\u26F9\u270A-\u270D\U0001F385\U0001F3C2-\U0001F3C4\U0001F3C7\U0001F3CA-\U0001F3CC\U0001F442-\U0001F443\U0001F446-\U0001F450\U0001F466-\U0001F478\U0001F47C\U0001F481-\U0001F483\U0001F485-\U0001F487\U0001F4AA\U0001F574-\U0001F575\U0001F57A\U0001F590\U0001F595-\U0001F596\U0001F645-\U0001F647\U0001F64B-\U0001F64F\U0001F6A3\U0001F6B4-\U0001F6B6\U0001F6C0\U0001F6CC\U0001F918-\U0001F91E\U0001F926\U0001F930\U0001F933-\U0001F939\U0001F93C-\U0001F93E];
E_Modifier         = [\U0001F3FB-\U0001F3FF];
GAZ                = [\u2640\u2642\u2764\u2695-\u2696\u2708\U0001F308\U0001F33E\U0001F373\U0001F393\U0001F3A4\U0001F3A8\U0001F3EB\U0001F3ED\U0001F466-\U0001F469\U0001F48B\U0001F4BB-\U0001F4BC\U0001F527\U0001F52C\U0001F5E8\U0001F680\U0001F692];

GB3:     CR LF;
GB4:     (Control | CR | LF) ÷;
GB5:     . ÷ (Control | CR | LF);

GB6:     L (L | V | LV | LVT);
GB7:     (LV | V) (V | T);
GB8:     (LVT | T) T;

GB10:    (E_Base | GAZ) Extend* E_Modifier;
GB9:     . (Extend | ZWJ);

GB9a:    . SpacingMark;
GB9b:    Prepend .;
GB11:    ZWJ GAZ;

# Regional Indicators, split into pairs.
#      Note that a pair of RIs that is not followed by a third RI will fall into
#      the normal rules for Extend, etc.
#
GB12:  Regional_Indicator Regional_Indicator ÷ Regional_Indicator;
GB13:  Regional_Indicator Regional_Indicator;

GB999:     . ÷;