[antlr-interest] Seperating parsing phase from action execution

[Tomasz Belina]

Hi,

I wrote grammer for expression evaluator and this grammer contains
actions resposible for evalutions. Single expression will be evaluated
more then once so I want to avoid multiple parsing the same
expression. It would be greate to build syntax tree on time and use
this tree to evaluated expression in multiple contexts. Is there
simple way in antlr to do such thing ?

Tomasz