[antlr-interest] (unknown)

[Pete Forman]

At 2003-03-18 14:47 +0100, Christian CORMIER wrote:
>I have in an AST a rule like this :
>A : B (C)? ;
>When B is recognized, a semantic action is necessary only if C is present.

A : B ( C {do_action;}
       | // empty
       ) ;

-- 
Pete Forman                -./\.-  Disclaimer: This post is originated
WesternGeco                  -./\.-   by myself and does not represent
pete.forman at westerngeco.com    -./\.-   opinion of Schlumberger, Baker
http://petef.port5.com           -./\.-   Hughes or their divisions.


 

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