[antlr-interest] Unterminated html comments

[Jim Idle]

> -----Original Message-----
> From: Steve Bennett [mailto:stevagewp at gmail.com]
> Sent: Sunday, February 17, 2008 8:46 PM
> To: antlr-interest
> Subject: [antlr-interest] Unterminated html comments
> 
> Can anyone think how to lex both terminated and unterminated HTML
> comments? That is:
> 
> <!-- this should all be one token -->
> 
> <!-- this should all be one token <EOF>
> 
> I have this:
> 
> HTML_COMMENT:
>     (('<!--') => '<!--' .* ('-->' | EOF) { $channel=HIDDEN; })
>     | '<' { $type=LT; };
> 
> But it doesn't work. On a line like: <!-- foo -->, the "<!-- f" gets
> lost (doesn't form a token in ANTLRworks).

You probably want the greedy=false option on that .* rule: ( options 
{greedy=false;} : . )*

Jim


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