@mike-lischke/antlr-tgen
Version:
A generator for antlr-ng runtime test cases
26 lines (20 loc) • 388 B
Plain Text
[type]
Parser
[grammar]
grammar T;
s @after {<ToStringTree("$ctx"):writeln()>} : e EOF ; // must indicate EOF can follow or 'a\<EOF>' won't match
e : e '*' e
| e '+' e
|\<assoc=right> e '?' e ':' e
|\<assoc=right> e '=' e
| ID
;
ID : 'a'..'z'+ ;
WS : (' '|'\n') -> skip ;
[start]
s
[input]
a?b: c?d:e
[output]
"""(s (e (e a) ? (e b) : (e (e c) ? (e d) : (e e))) <EOF>)
"""