[antlr-interest] Found a BUG ! (maybe)

[Terence Parr]

On Mar 19, 2004, at 4:54 PM, rigpa_man wrote:

> Hi all,
>
> I used ANTLR (PCCTS) a few years ago and loved it. I have a use for
> it again so I'm picking it up to play with one more time.

welcome back, rigpa_man!

> Here is my problem:
> (bug appears in both antlr-2.7.2 and antlr-2.7.3rc2)
>
> The following lex rule...
>
> SCOLN
> 	:	';' (~'\n')* '\n'
> 	;
>
> ...gets converted to this... (parts removed for brevity)
>
> 	. . .
> 	match(';');
> 	{
> 	_loop6:
> 	do {
> 		if ((LA(1)==';')) {
> 			matchNot('\n');
> 		}
> 		else {
> 			break _loop6;
> 		}
> 	} while (true);
> 	}
> 	match('\n');
> 	. . .
>
> ...which does not work.

This indicates that you have not specified a charVocab='\003'..'\377' 
option in your lexer to tell it was ~'\n' means.  Give that a shot.

Ter
--
Professor Comp. Sci., University of San Francisco
Creator, ANTLR Parser Generator, http://www.antlr.org
Cofounder, http://www.jguru.com
Cofounder, http://www.knowspam.net enjoy email again!
Cofounder, http://www.peerscope.com pure link sharing





 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
     http://groups.yahoo.com/group/antlr-interest/

<*> To unsubscribe from this group, send an email to:
     antlr-interest-unsubscribe at yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
     http://docs.yahoo.com/info/terms/