[antlr-interest] Delimited identifiers and suffix functions
Martin Probst
mail at martin-probst.com
Mon Dec 12 11:28:29 PST 2005
Depending on the rest of your grammar you might be able to lex the DOT
together with the preceding element. E.g. "ident0." becomes IDENT_W_DOT
instead of IDENT DOT, and your rule would be
(IDENT_W_DOT)* ( IDENT | LAG OPEN_PAREN ... )*
Martin
Am Montag, den 12.12.2005, 12:22 -0500 schrieb John.Ericson at thomson.com:
> I am having a problem with parser nondeterminism between alt 1 and the
> exit branch of the following rule (simplified)...
>
> member : identifier (DOT identifier)*
> (DOT LASTCHILD
> | DOT LAG OPEN_PAREN index CLOSE_PAREN)*
> ;
>
> I want to successfully parse the following types of members...
>
> ident0.ident1.ident2.identN
> ident0.ident1.ident2.identN.lastchild
> ident0.ident1.ident2.identN.lastchild.lag(1)
>
>
> Any ideas?
>
> John Ericson
> Sr. Programmer/Analyst
> Thomson Medstat
>
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