------ Original Message (Wednesday, August 04, 2010 9:53:09 AM) From: Junkman ------ Subject: Re: [antlr-interest] Tree parser eats up DOWN node when navigating optional child node > >> parent: ^(parent_a B?) ; >> parent_a: ^(PARENT A?) ; >> -------------------------------------------- >
. . . is the same as parent: ^( ^(PARENT A?) B? ) ; which will not match ^(PARENT B), but will match ^( ^(PARENT) B). BTW, a subtree match() will always properly consume the UP DOWN subtree delimiters. You probably want parent: ^(parent_a B?) ; parent_a: PARENT A? ; List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
