org.antlr.v4.test.runtime.templates.LeftRecursion.MultipleActionsPredicatesOptions.stg Maven / Gradle / Ivy

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A collection of tests for ANTLR 4 Runtime libraries.

There is a newer version: 4.9.0

/*
 * This is a regression test for antlr/antlr4#625 "Duplicate action breaks
 * operator precedence"
 * https://github.com/antlr/antlr4/issues/625
 */

TestType() ::= "Parser"

Options ::= [
	"Debug": false
]

Grammar ::= [
	"T": {}
]

Rule() ::= "s"

grammar(grammarName) ::= <<
grammar ;
s @after {} : e ;
e : a=e op=('*'|'/') b=e  {}{}?
  | a=e op=('+'|'-') b=e  {}\{}?\
  | INT {}{}
  | '(' x=e ')' {}{}
  ;
INT : '0'..'9'+ ;
WS : (' '|'\n') -> skip ;
>>