Perl 6 - the future is here, just unevenly distributed

IRC log for #marpa, 2015-09-09

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All times shown according to UTC.

Time Nick Message
00:26 ronsavage spacebat: You can always show us a gist of the grammar.
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00:31 idiosyncrat spacebat: if you post a link to a whole grammar, it'll raise the likelihood of a useful answer.
00:31 idiosyncrat in a perfect world, that grammar would be a minimal example, but that's not necessary.
00:34 idiosyncrat ronsavage: "I have a grammar where EOL is significant.  How do I deal with that?" is certainly a FAQ.
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01:57 ronsavage jk: Indeed. I'm just starting lunch, so I'll think about it.
02:10 ronsavage jk: Errr. Do we have a definitive answer?
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02:17 idiosyncrat I've just gotten a set of books that will be very useful: The Cmake manual, and some Lua manuals.
02:17 idiosyncrat They are a gift from Ron Savage, for which many thanks.
02:28 idiosyncrat ronsavage: re the EOL-oriented grammar FAQ:
02:28 idiosyncrat I don't think a definitive answer is possible -- there are lots of special cases.
02:29 idiosyncrat My guess is the answer would be pointers to tutorials, plus maybe a few lines outlining the techniques in various terms.
02:29 idiosyncrat By the way, EOL-oriented languages were important in Marpa's history --
02:30 idiosyncrat My two inspirations to do the SLIF were Andrew Rodland's TAP grammar, and a grammar by Peter Stuifzand.
02:31 idiosyncrat Peter wrote an interface which I adopted as the basis for the SLIF ...
02:31 idiosyncrat and Andrew was the first to use a dual-parser strategy -- one Marpa parser feeding another
04:14 ronsavage jk: OK.
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05:29 idiosyncrat On the topic of how word of Marpa gets around, it would be useful I think to know how the newest users in this channel first heard of Marpa, and (if it's different), what first made them take it seriously.
05:30 idiosyncrat I'm most interested in hearing from folks who either first heard, or first decided to really make use of Marpa in the past 2 years.
05:30 idiosyncrat rns, ronsavage, jdurand, I already know how you found out. :-)
05:31 idiosyncrat At one point it was clear to me exactly how each person I heard from first heard of Marpa, but in the recent months the process has become quite mysterious to me.
05:32 idiosyncrat Word *is* getting around, but it's done below my radars.
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05:33 ernimril idiosyncrat, google search for better ways to build a parser. recursive decent and LALR did not work out well for my compiler project (not using marpa directly, building my own project in java that takes inspiration)
05:34 idiosyncrat ernimril: so you then heard of us how?
05:35 ernimril idiosyncrat, I found the web site
05:35 idiosyncrat by searching for parser and/or parsing?
05:36 ernimril idiosyncrat, yes, I do not remember the exact search, I did quite a few before I found useful things
05:37 idiosyncrat OK, that's good enough.  So just general kind of searches on parsing related words and eventually we popped up is what I take happened.
05:37 ernimril correct
05:38 ernimril I was mostly interested in dealing with conflicts/ambigous rules and things like that.
05:38 ernimril the java language has quite a few rules that are problematic for parsers that use k-lookahead
05:38 idiosyncrat hmmm
05:40 idiosyncrat It's now sign off time for me,
05:41 idiosyncrat but if folks leave answers on the channel, the backlog bot will save them for me,
05:41 idiosyncrat and I will see them in the morning.
05:41 idiosyncrat Thanks! and good night!
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06:11 ronsavage Re http://irclog.perlgeek.de/marpa/2015-09-09#i_11188072. Is there any Marpa code/grammar which deals with ("\n" is special) languages?
06:14 pczarn idiosyncrat: /r/programming post, one year ago.
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