[antlr-interest] Question about recursion

Anthony Brenelière abreneliere at telys.com
Mon Feb 3 09:18:44 PST 2003


I just noticed recursion was rejected when the rule was the first rule
of the right part.
 
expr
            :           MINUS expr
;
 
..is ok
 
expr
            :           expr MINUS 
;
 
..is not okay
 
If there a way to allow the second example in an ANTLR grammar ?
therorically that ahould be accepted, it’s a correct rule of the BNF.
 
-----Message d'origine-----
De : Anthony Brenelière [mailto:abreneliere at telys.com] 
Envoyé : lundi 3 février 2003 18:06
À : Antlr Yahoogroups
Objet : [antlr-interest] Questions about recursion...
 
Why is there no recursion in ANLR grammars ?
 
Is it by design or not implemeted yet ?
 
 
 

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