[notes]
This is a regression test for antlr/antlr4#248 "Including grammar with only
fragments breaks generated lexer".  https://github.com/antlr/antlr4/issues/248

[type]
CompositeParser

[grammar]
grammar Test;
import Unicode;

program : 'test' 'test';

WS : (UNICODE_CLASS_Zs)+ -> skip;

[slaveGrammar]
"""lexer grammar Unicode;

fragment
UNICODE_CLASS_Zs    : ' ' | ' ' | ' ' | '᠎'
    | ' '..' '
    | ' ' | ' ' | '　'
    ;

"""

[start]
program

[input]
test test

