[antlr-interest] Duplicate nodes on a parse tree

Markus Kuhla bace.spam at gmx.net
Thu Jun 21 17:07:40 PDT 2007


Hi!

Vadim Tropashko vadimtro at yahoo.com wrote:
> OK, I see the coloring (when tree is in chart form).
> It must be the Tree.getType() method that does this.
(http://www.antlr.org/pipermail/antlr-interest/2007-March/019566.html)

I'm using the ParseTree and was wondering if there is a way to remove these duplicate nodes (for backtracking) from the ParseTree? As I checked the above described getType() for each node in the tree, I always got 0 (zero).


Thanks folks for you help!!!
Best,
Markus
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