[antlr-interest] Suppress output of org.antlr.runtime.tree.TreeRewriter

[Viktor Lioutyi]

Hi Stefan,

ANTLR comes with the source code. For issues like this I created patch.jar file with small fixes to ANTLR and put on a classpath before ANTLR jar files. For ANTLR 3.1.3 this output is in antlr-3.1.3/runtime/Java/src/main/java/org/antlr/runtime/tree/TreeRewriter.java, method

    public Object applyOnce(Object t, fptr whichRule) {


Thanks,
Viktor

-----Original Message-----
From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-bounces at antlr.org] On Behalf Of Stefan Bischof
Sent: Tuesday, June 30, 2009 7:28 AM
To: antlr-interest at antlr.org
Subject: [antlr-interest] Suppress output of org.antlr.runtime.tree.TreeRewriter

Hi guys,

I'm currently using a rewriting tree grammar (rewrite=true, filter=true)
which means my parser is extending org.antlr.runtime.tree.TreeRewriter.

I want to feed output of my program directly to another program with an
unnamed pipe | on the command line. Unfortunately that's not possible
now because the TreeRewriter shows every rewriting on stdout (like a ->
b).

So, is there a possibility to suppress this output (yes, it's using
System.out.println)?

regards
Stefan Bischof



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