1) Backtracking will not work in lexers 2) Don't advise people to use backtrack mode 3) That rule will give warnings anyway
BTW Guys, don't forget antlr.markmail.org !!! Jim > -----Original Message----- > From: [email protected] [mailto:antlr-interest- > [email protected]] On Behalf Of Bart Kiers > Sent: Thursday, March 25, 2010 6:51 AM > To: Anders Sollander > Cc: [email protected] > Subject: Re: [antlr-interest] Lexer rule for strings with quoted > strings within > > On Thu, Mar 25, 2010 at 2:01 PM, Anders Sollander < > [email protected]> wrote: > > > Hi, > > > > I've been trying to write a lexer rule for strings with strings in > them, > > like > > > > "This has a ""quoted string"" within" > > > > Is there a simple lexer rule for this, or do I need some kind of look > > ahead? > > > > > You could enable the `backtrack` option: > > String > options { backtrack = true; } > : '"' ('""' | ~'"')+ '"' > ; > > Regards, > > Bart. > > 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.
