[antlr-interest] TreeParsing with various roots

[Bryan Ewbank]

From: "Monty Zukowski" <monty at codetransform.com>
To: <antlr-interest at yahoogroups.com>
Sent: Wednesday, November 03, 2004 17:48
Subject: Re: [antlr-interest] TreeParsing with various roots


>
> On Nov 3, 2004, at 2:31 PM, Paul J. Lucas wrote:
>
> > But having to use the text of the original token seems a bit
> > hokey to me.  Is there a better way?
>
> Not saying it's better, but you could also introduce an imaginary root
> to do the same thing.  Makes your tree bigger, though.

Perhaps an OPERATOR type, as you suggest, but and introduce a subtype member
to preserve the original.  It at least avoids looking at the text and
preserves the information.



 
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