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FROM: hst_12345 at yahoo.com 
DATE: Sat, 06 Nov 2004 02:21:02 -0000 
SUBJECT: multiple lexer 

I am wokring on a project to parse expressions which is part
of the doc. So I wrote a seperate parser for the expression.
And use multiple lexer. The problem I have is that when 
switch back, one token is eaten from the expression parser. 
Here is my doc syntax: main parser: 

EXP { '1.2+3.5' T; '3.6+6.8' H;} So the main parser rule: 
expression: EXP LCURLY ( SINGLE_QUOTE { 
_selector.select("expressionLex"); expressionParser.Parse();

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From: "hst_12345" <hst_12345 at yahoo.com>
Subject: multiple lexer
Date: Sat, 06 Nov 2004 02:21:02 -0000
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