[antlr-interest] ANTLR 3 output=AST for tree parser?

[Werner Lehmann]

for a few hours now I have been trying to get a tree parser out of 
Terence's Java 1.5 grammar. I thought I was doing something wrong being 
not very experienced with ANTLR. Is it true that ASTs are not yet supported?

I need to update my Java 1.4 parser (based on ANTLR 2.7.6) to Java 1.5 
and it seemed to be a good idea to use ANTLR3 and this new grammar but 
maybe not so. By the way, the separate examples download has a more 
recent version of Java.g. The version available from the grammars list 
on the site is older and produces uncompilable code which pushed me off 
track for some time.

If ANTLR3 would not yet provide an AST should I then use the Java 1.5 
grammar created by Michael Studman or Michael Stahl (any experience with 
either)?

FranklinChen at cmu.edu wrote:
> I noticed that output=AST for tree parsers in 3.0b6 isn't working
> yet.  When will this be available?  I have large ANTLR 2 projects that
> make extensive use of multiple passes gradually transforming an AST
> until the final pass generates output, and I would like to convert
> them to ANTLR 3.