Thanks Jim! --Kaleb
http://twitter.com/kalebpederson http://kalebpederson.com On Thursday 01 October 2009 03:49:53 pm Jim Idle wrote: > Wiki - front page - lexing for dot, range, ..... > > http://www.antlr.org/wiki/display/ANTLR3/Lexer+grammar+for+floating+point%2C+dot%2C+range%2C+time+specs > > This grammar also caters for 999.toString() type things as it comes from > JavaFX. > > Jim > > > -----Original Message----- > > From: [email protected] [mailto:antlr-interest- > > [email protected]] On Behalf Of Kaleb Pederson > > Sent: Thursday, October 01, 2009 3:47 PM > > To: Gavin Lambert > > Cc: [email protected] > > Subject: Re: [antlr-interest] Disambiguating Decimal and Integer '.' > > > > On Thursday 01 October 2009 01:06:54 pm Gavin Lambert wrote: > > > At 08:12 2/10/2009, Kaleb Pederson wrote: > > > >INTEGER > > > > : NUMBER+; > > > > > > > >DECIMAL > > > > : INTEGER '.' INTEGER; > > > > > > You should have a look at the wiki and the mailing list > > > archives. This is a fairly common problem with a fairly simple > > > solution: > > > > I've looked, read, and re-read, but apparently I don't know exactly > > what to look for, so thanks for pointing it out. I'd be interested to > > any references in the wiki or archives if you have them. My google-fu > > and not-so-random searching didn't bring up anything useful. > > > > > fragment INTEGER : NUMBER+ ; > > > > > > DECIMAL > > > : INTEGER ('.' INTEGER | { $type = INTEGER; }) > > > ; > > > > This did not work, nor did adding an options {k=2;} statement. > > > > > If that doesn't work by itself, you can add a predicate to force a > > > two-character lookahead: > > > > > > DECIMAL > > > : INTEGER (('.' NUMBER) => '.' INTEGER | { $type = INTEGER; }) > > > ; > > > > This worked great, thank you! I would not have thought to try > > something like that. I was attempting to have the DECIMAL non-terminal > > avoided, rather than allowing it to match the same thing as an INTEGER > > and changing the type on it. Perhaps that caused some tunnel vision. > > > > --Kaleb > > > > http://twitter.com/kalebpederson > > http://kalebpederson.com > > > > 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 > List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en -~----------~----~----~----~------~----~------~--~---
