Re: Java 8 Parser

Hello, With Marpa::R2 it is possible to do exclusions at the lexeme level using user-defined character classes. Such an implementation was used in ECMAScript as mentionned indeed by Jeffrey, c.f; https://github.com/jddurand/MarpaX-Languages-ECMAScript-AST/blob/master/lib/MarpaX/Languages/ECMAS

Re: Java 8 Parser

Thanx. Typos fixed. -- You received this message because you are subscribed to the Google Groups "marpa parser" group. To unsubscribe from this group and stop receiving emails from it, send an email to marpa-parser+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/

Re: Java 8 Parser

Great, thanks. BTW, s/How to I/How do I/ on both. I'd file a PR, but couldn't find those entries at https://github.com/ronsavage/marpa.faq -- missing something perhaps. On Tue, Oct 18, 2016 at 3:12 AM, Ron Savage wrote: > Using this material, I've added 2 new questions to the FAQ: > http://sav

Re: Java 8 Parser

Using this material, I've added 2 new questions to the FAQ: http://savage.net.au/Perl-modules/html/marpa.faq/faq.html. Nos 144 and 145. -- You received this message because you are subscribed to the Google Groups "marpa parser" group. To unsubscribe from this group and stop receiving emails fr

Re: Java 8 Parser

On Thu, Oct 13, 2016 at 6:00 PM, Harry wrote: > > 1. Keyword vs Identifier: > http://stackoverflow.com/questions/27109840/marpa-can-i-explicitly-disallow-keywords-as-identifiers https://gist.github.com/rns/d19b40ffc5523659dec9 -- events can be used to analyze the string using Perl regexes and re

Re: Java 8 Parser

Harry's example depends on eager (shortest match) recognition. IIRC Perl regex named properties won't get him there. On Sat, Oct 15, 2016 at 9:06 PM, Paul Bennett wrote: > On Oct 15, 2016 13:01, "Jeffrey Kegler" > wrote: > > > > Re #4, why not implement Perl regexes? A full syntax of Perl reg

Re: Java 8 Parser

On Oct 15, 2016 13:01, "Jeffrey Kegler" wrote: > > Re #4, why not implement Perl regexes? A full syntax of Perl regexes is gruesomely complex, and much of it is symptoms rather than features. Somewhere deep within perldoc there's a howto on making your own \p{} named properties, which AFAICT are

Re: Java 8 Parser

And here's another tutorial with a short example of external lexing: http://jeffreykegler.github.io/Ocean-of-Awareness-blog/individual/2013/06/mixing-procedural.html On Sat, Oct 15, 2016 at 4:12 AM, Harry wrote: > Thanks, Jeffrey, for your responses. > > I've gone through the documentation of Ma

Re: Java 8 Parser

Re #4, why not implement Perl regexes? A full syntax of Perl regexes is gruesomely complex, and much of it is symptoms rather than features. But some of the features *are* useful, including eager matching, which is what your example depends on. The obstacle is that Perl regexes are deterministic

Re: Java 8 Parser

Here's a tutorial for small example of external lexing aka procedural parsing: http://jeffreykegler.github.io/Ocean-of-Awareness-blog/individual/2013/04/procedural.html On Sat, Oct 15, 2016 at 4:12 AM, Harry wrote: > Thanks, Jeffrey, for your responses. > > I've gone through the documentation o

Re: Java 8 Parser

Thanks, Jeffrey, for your responses. I've gone through the documentation of Marpa::R2::Scanless::R but it's not becoming fully clear how to 'connect' the external lexing routine of mine to Marpa's built-in G1 parser. I've looke

Re: Java 8 Parser

Your specific questions, of the top of my head: 1.) You may want to look at lexeme priorities. If not, yes, external lexing may be what you need. 2.) There are several examples of ways to write multi-line comments. One is in the FAQ: http://savage.net.au/Perl-modules/html/marpa.faq/faq.html#q11

Re: Java 8 Parser

Javascript is not Java I know, but Jean-Damien Durand has written several full language parsers, including ECMAScript: https://github.com/jddurand/MarpaX-Languages-ECMAScript-AST On Thu, Oct 13, 2016 at 8:00 AM, Harry wrote: > Hello, > > I'm very new to Marpa but, from its description, it looks