[antlr-interest] non-existed char met

[=?gb2312?q?=CB=EF=BC=CD=B8=D5=20Jigang=20(Robert)=20Sun?=]

With parser rule
 
    symbolId:( FunnyID) EOF;

and lexer rule

OP: ( '@' | '#' | '$' | '%' | '^' | '&'| '?' | '*' | '/' | '='| '<' | '>' | '_' | '.'| '`' |  
'\''|'\"'){$setType(FunnyID);} ;

DenotOrFunnyID: (('+'|'-') {$setType(FunnyID);})? NUM{$setType(IntDenot);} ( '.' NUM ( 'E'
('+'|'-')?    NUM)? {$setType(RealDenot);})?;

protected NUM:(Digit)+;

I put only one char in source file, '*' could be parsed normally, but when I replaced it with '-',
after a windows popped described in my previuos email, the attached picture popped up. I swear
there is only one character in source file. I expect both '*' and '-' are recognised as FunnyID. 

Robert

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