@mike-lischke/antlr-tgen
Version:
A generator for antlr-ng runtime test cases
37 lines (29 loc) • 674 B
Plain Text
[type]
Parser
[grammar]
grammar T;
s
@init {<LL_EXACT_AMBIG_DETECTION()>}
@after {<DumpDFA()>}
: '{' stat* '}' ;
stat: 'if' ID 'then' stat ('else' ID)?
| 'return'
;
ID : 'a'..'z'+ ;
WS : (' '|'\t'|'\n')+ -> skip ;
[start]
s
[input]
{ if x then return else foo
if x then if y then return else foo }
[output]
Decision 1:
s0-'}'->:s2=>2
s0-'else'->:s1^=>1
[errors]
line 1:19 reportAttemptingFullContext d=1 (stat), input='else'
line 1:19 reportContextSensitivity d=1 (stat), input='else'
line 2:27 reportAttemptingFullContext d=1 (stat), input='else'
line 2:36 reportAmbiguity d=1 (stat): ambigAlts={1, 2}, input='elsefoo}'
[flags]
showDiagnosticErrors