[antlr-interest] Nested multi-line comments

[Graham Wideman]

Peter:

I surmise from this that your main test routine is trying to call g.ML_COMMENT, when it should be calling the top level (starting) lexer rule method:

   g.code();

-- Graham

At 10/25/2009 01:03 AM, Peter Boughton wrote:
>Thanks John, but this doesn't appear to be working.
>(I'm using antlr 3.2 with antlrworks 1.3)
>
>I tried it both as provided and with changing the comment start/end
>characters, and both of these give the same error in the generated
>Java code:
>
>	C:\tmp\antlr\__Test__.java:14: cannot find symbol
>	symbol  : method ML_COMMENT()
>	location: class cfml_comment_testParser
>	            g.ML_COMMENT();
>	             ^
>	1 error
>
>I'm testing this with a very basic set of rules at the moment:
>
>	grammar cfml_comment_test;
>	
>	ML_COMMENT : NESTED_COMMENTARY { $channel=HIDDEN; } ;
>	
>	fragment NESTED_COMMENTARY :
>	     '<!---'
>	     ( options {greedy=false;} : . )*
>	     ( NESTED_COMMENTARY ( options {greedy=false;} : . )* )*
>	     '--->'
>	  ;
>	
>	WS : ( ' ' | '\t' | '\n' | '\r' ) {$channel=HIDDEN;} ;
>	
>	TEXT: ~'<' ;
>	
>	code: ( ML_COMMENT | WS | TEXT )+;