[antlr-interest] Context Sensitive Keyword Support?

[Scott Stanchfield]

Has anyone looked at the context-sensitive-scanning proposal I sent a
while back?

    http://javadude.com/articles/antlr-context-sensitive-scanner.html

-- Scott

----------------------------------------
Scott Stanchfield
http://javadude.com



On Wed, Feb 16, 2011 at 4:38 PM, Jim Idle <jimi at temporal-wave.com> wrote:
> No you do this in the parser by allowing the keywords where ID is expected
> then by predicating the WHERE keyword in the LINQ rules:
>
>
> .... ((WHERE)=>where_clause)? ....
>
>
> id : ID | WHERE | ....
>
>
> I have fully working C# lexer, parser, tree walker if that is what you are
> trying to build. It is a commercial product though.
>
> Jim
>
>> -----Original Message-----
>> From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
>> bounces at antlr.org] On Behalf Of chris king
>> Sent: Wednesday, February 16, 2011 1:32 PM
>> To: antlr-interest at antlr.org
>> Subject: [antlr-interest] Context Sensitive Keyword Support?
>>
>> Does ANTLR support context sensitive keywords? For example, in C#
>> "where" is a keyword only in a LINQ expression. To support this ANTLR
>> would need to change the lexer behavior given feedback from the parser
>> letting it know what context it is in. From what I hear ANTLR lexes the
>> entire file before passing it onto the parser. If that's true than I
>> guess it doesn't support this language concept. In that case, is there
>> a way to work around?
>>
>> Thanks,
>> Chris
>>
>> List: http://www.antlr.org/mailman/listinfo/antlr-interest
>> Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-
>> email-address
>
> List: http://www.antlr.org/mailman/listinfo/antlr-interest
> Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address
>