MODERATE -- georgehernando@hotmail.com posted to antlr-interest

Yahoo!Groups Notification antlr-interest-accept-q3m5pF776yMrdDNB98564Oo at yahoogroups.com
Tue Sep 21 08:15:42 PDT 2004


Hello,

A message has been sent to the antlr-interest group from

  georgehernando at hotmail.com 

The message summary:
--------------------
FROM: georgehernando at hotmail.com 
DATE: Tue, 21 Sep 2004 15:15:38 -0000 
SUBJECT: Use each token Once -- All required 

How can I specify a compact syntax for the parser that will 
define a list of token types from the lexer where each type 
must appear, but only one time? 

XXX : (TokenType1 | TokenType2 | TokenType3 | TokenType4)+; 

doesn't limit the token types to appearing only one time. 

Do I have to specify all permutations? 

--------------------

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