[antlr-interest] strangeness parsing comments

[Raymer David-fdr017]

well .. this was a symptom, not the problem.  The problem is actually another lexer rule ...  it appears that rule is a misuse of the lexer, and should be implemented as a parser rule.
 

Dave Raymer
D: (817)-245-6834       M:(817)501-2665         ICBM: 32.9° N 97.2° W
All that is necessary for the triumph of evil is for good men to do nothing
-- attributed to Edmund Burke 


 


________________________________

	From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-bounces at antlr.org] On Behalf Of Raymer David-fdr017
	Sent: Wednesday, May 21, 2008 2:47 PM
	To: antlr-interest at antlr.org
	Subject: [antlr-interest] strangeness parsing comments
	
	
	Gentlebeings,
	 
	 
	Given the following lexer construct in a grammar file ...
	 
	INLINE_COMMENT
	     :  '/*' ( options {greedy=false;} : . )* '*/'   { $channel=HIDDEN; }
	     |  '//' ~('\n'|'\r')* '\r'? '\n'  { $channel=HIDDEN; }
	     ;    
	
	If this rule executes on the "/* .... */" construct, it seems as tho my parser is stuck in "not greedy" mode -- that is the match of the any subsequent rules fail.  If I remove the "/* ... */" from the input file everying works. 
	 
	I'm using AntlrWorks 1.1.7 and Antlr 3.0.1 on Windoze(tm) with JDK 1.6.0_05 
	 
	thanks for any thoughts on what I am doing wrong ..

	Dave Raymer
	D: (817)-245-6834       M:(817)501-2665         ICBM: 32.9° N 97.2° W
	All that is necessary for the triumph of evil is for good men to do nothing
	-- attributed to Edmund Burke 


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