[antlr-interest] Catch all rule and warnings

[Hill, Robert]

Maybe this is another case for an island grammer?

I believe Ter put an example somewhere in the Antlr Distribution.

Regards, 

Rob

Robert Hill
Information Engineer
Agile Alliance Member
UKIMEA DWP ACU, Hallamshire Business Park, 100 Napier St, Sheffield. S11
8HD
email:	rhill03 at eds.com
Office:	+44 114 291 1928
Mobile:	+44 7903 185 516

 

>-----Original Message-----
>From: antlr-interest-bounces at antlr.org 
>[mailto:antlr-interest-bounces at antlr.org] On Behalf Of Andrei Vereha
>Sent: 13 December 2006 09:36
>To: antlr-interest at antlr.org
>Subject: [antlr-interest] Catch all rule and warnings
>
>I have a question about warnings.
>
>I took the "HTML Indexer" from Gramar list section. When I 
>generate the source with antlr, I get 3 warnings. Is a way to 
>avoid these warnings?
>
>I have have a similar problem to solve:  I need to look for a 
>lot of "custom" tags in a html file + the html content(I can't 
>ignore the HTML content !). If I use this aproach, I will get  
>more and more warnings. This is the only solution?
>
>In a simple case, (a JSP file), where I need to recognize just 
>the "<%" and "%>" tag, TEXT_BETWEEN_TAGS and TEXT(text outside 
>tags), I made a gramar without warnings, by writing a catch 
>all rule like this:
>
>JSPSTART:"<%" {this.in_jsp=true };
>JSPEND:"%>" {this.in_jsp=false };
>
>TEXT options{testLiterals=true} : (~( '<' |  '>' | '%'))+ {
> if(this.in_jsp) $setType(TEXT_BETWEEN_TAGS); };
>
>In a more complex case, where I need to regonize : <TAG1>, 
><TAG2>, the TEXT rule will be imposible to write.
>
>Do you have any suggestions?
>
>Thank you,
> Andrei
>