[antlr-interest] Removing parse trees from antlr grammars.

[Ymo]

Hi.

I discovered this tool ...
http://www.antlr.org/wiki/display/ANTLR3/Tool+showing+grammatical+structure+of+Java+code

This tool depends on the Antlrv3 grammar with all the tree construction code
striped.

1) is there a way i can automatically remove all the tree construction code
from any grammar? I don't know if the person that wrote the tool did this by
hand but i found it was very tedious.

2) Is there an API in the antlr source code for parsing and "visiting" antlr
grammars ? Where should i start in the source code if there is no such API ?

3) I saw few versions of the Java.g grammar. Which one is the "official" or
recommended one ?

First there is http://antlr.org/grammar/1152141644268/Java.g
And then http://antlr.org/grammar/1207932239307/Java1_5Grammars
and now there is the Java.g grammar at :
http://openjdk.java.net/projects/compiler-grammar/
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