Perl 6 - the future is here, just unevenly distributed

IRC log for #marpa, 2016-03-05

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Time Nick Message
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02:48 Topic for #marpa is now Start here: http://savage.net.au/Marpa.html - Pastebin: http://scsys.co.uk:8002/marpa - Jeffrey's Marpa site: http://jeffreykegler.github.io/Marpa-web-site/ - IRC log: http://irclog.perlgeek.de/marpa/today
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08:13 pczarn a cool tool for grammars: http://mdaines.github.io/grammophone/
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17:45 idiosyncrat_ pczarn: re http://irclog.perlgeek.de/m​arpa/2016-03-05#i_12141379 -- very cool
17:46 idiosyncrat_ Note that if he's used Marpa to parse his grammar, he would not need a terminator for the rules.
17:46 idiosyncrat_ That is, he requires you to write:
17:47 idiosyncrat_ S -> a S b . S -> .
17:47 idiosyncrat_ With Marpa, you can write:
17:47 idiosyncrat_ S -> a S b S ->
18:53 idiosyncrat_ A relatively simply exercise for those trying to get their bearings with Marpa.
18:54 idiosyncrat_ Write a preprocessor that takes a SLIF grammar and transforms it into the grammophone format.
18:55 idiosyncrat_ There is already a self-describing SLIF grammar: https://github.com/jeffreykegler/Marpa--R2/b​lob/master/cpan/lib/Marpa/R2/meta/metag.bnf
18:56 idiosyncrat_ Actually, now that I reflect, the exercise is not all that simple, because of precedenced rules and sequences, which you'd have to do the rewrite for.
18:57 idiosyncrat_ But that makes it all the more rewarding, because an obstacle has been Marpa's upper layers, which are in Perl and Perl/XS -- most folks want all this sugar on top.
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