[antlr-interest] Puzzled by leading dot

[Juergen Weber]

Hi,

I want to parse lines of the form

.SE DATE = '03.02.2005';.SE TIME = '20:17'            
   

(basically a key value format, the .SE is to be
ignored).

If I parse the input with the grammar below, I got
this error message:

Exception in thread "main" line 1:1: unexpected char:
'.'

How could I specify a keyword with a leading dot?

Thanks for your help,
Juergen




class MyParser extends Parser;


line
	: item (SEMI item)*
	;

item 
	: DOTSE IDENT "=" STRING_LITERAL
	;

  

class MyLexer extends Lexer;

tokens {
        DOTSE=".SE";
}


IDENT
	:	('a'..'z'|'A'..'Z'|'_')
('a'..'z'|'A'..'Z'|'_'|'0'..'9')*
	;



STRING_LITERAL 	
	:
	'\'' 
	(~'\'')* 
	'\'' 
	;


SEMI:	';'
	;




		
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