[antlr-interest] Semantik Predicates

Zachary Palmer zep_antlr at bahj.com
Sun Oct 24 13:24:07 PDT 2010

... Wow.  That's... convenient.  Thanks.  :)

May I recommend that we document this feature?  I've only found two 
mentions of it online (under the miscellaneous release notes at 
http://www.antlr.org/wiki/display/ANTLR3/ANTLR+3.1+Release+Notes and at 
http://www.antlr.org/wiki/display/ANTLR3/ANTLR+Cheat+Sheet where it 
seems to have been entered incorrectly into the wiki).  I have a copy of 
The Definitive ANTLR Reference and I couldn't find any mention of the 
syntax in there.

This is going to save me at least a week of refactoring.  I'm really 
quite relieved... thanks!


> On Oct 24, 2010, at 8:37 AM, Zachary Palmer wrote:
>> My personal feeling is that ANTLR should have some syntax describing
>> whether or not a given action should be run during backtracking or not.
> {{exec even if backtracking}}
> :)
> Ter

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