Perl 6 - the future is here, just unevenly distributed

IRC log for #marpa, 2016-06-09

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All times shown according to UTC.

Time Nick Message
02:30 ronsavage joined #marpa
05:16 idiosyncrat_ Good night!
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05:55 ronsavage After a long and sometimes frustrating struggle to rewrite WWW::Scraper::Wikipedia::ISO3166, I've release V 2.00, clearing the decks for a return to working on the parsertron for Perl regexps. Just 1 issue: An odd failure of SVG::GRID to be investigated.
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19:54 jdurand Jeffrey, at the libmarpa level, if precompute fails, if there a way to get the first symbolid and/or ruleid where the error was caught ?
19:54 jdurand "is there a way"
19:56 jdurand (ps: I am currently working on the ISO EBNF at the thin libmarpa level)
20:07 jdurand ... And no pb if you say I have to introspect it - I'm thinking to do that anyway -; Thanx & AFK
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21:04 rns jdurand: re http://irclog.perlgeek.de/m​arpa/2016-06-09#i_12637637 -- MARPA_EVENT_COUNTED_NULLABLE and MARPA_EVENT_NULLING_TERMINAL that can be queried via marpa_g_event() have offending symbol ID as event value --
21:05 rns http://jeffreykegler.github.io/Marpa-web-site/li​bmarpa_api/stable/api_one_page.html#Event-codes
21:05 rns http://jeffreykegler.github.io/Marpa​-web-site/libmarpa_api/stable/api_on​e_page.html#Grammar-precomputation
21:08 rns jdurand: re http://irclog.perlgeek.de/m​arpa/2016-06-09#i_12637650 -- cool, do you plan to make it a lib bindable to an HLL, such as perl?
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22:09 idiosyncrat_ rns: Thanks!
22:11 idiosyncrat_ jdurand: re http://irclog.perlgeek.de/m​arpa/2016-06-09#i_12637637 -- yes, rns essentially provided the answer.
22:11 idiosyncrat_ Other described in the docs are about the start symbol, as can be determined from the error code ...
22:12 idiosyncrat_ or have no rule/symbol especially relevant.
22:13 idiosyncrat_ There are probably error codes not listed in the doc (the list does not claim to be exhaustive), and they'd have to be found by going through the source.
22:17 idiosyncrat_ And there's an event -- MARPA_EVENT_LOOP_RULES -- from which you can find out which rules are involved in a cycle, if a cycle is reported.
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