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Groups > comp.compilers > #1320
| From | George Neuner <gneuner2@comcast.net> |
|---|---|
| Newsgroups | comp.compilers |
| Subject | Re: LR(1) Parsing : Error Handling & Recovery |
| Date | 2014-07-17 18:49 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <14-07-030@comp.compilers> (permalink) |
| References | <14-07-023@comp.compilers> <14-07-024@comp.compilers> |
On Wed, 16 Jul 2014 16:39:09 -0400 (EDT), Ivan Godard <ivan@ootbcomp.com> wrote: >As a practical matter, natural languages are pretty much LL1 (German >verbs excepted) Obviously you haven't read any legal briefs lately 8-) Natural languages are contextual. Neither LL(1) nor (LA|S)LR(1) can parse a contextual language - both are limited to context-free languages. GLR and PEG theoretically can parse contextual languages. It is thought that LL(*) - LL with unlimited lookahead - may be able to as well, but AFAIK, there has been no formal proof offered for this. >so people are reasonably familiar to quasi-linear parsing. Studies have shown that human parsing of language is both top-town and bottom-up simultaneously. >Nearly all languages yield to LL1 techniques (the formal proofs >that a language is not LL1 are irrelevant) ... Yes ... most useful context free languages can be contorted into LL(1). But it's a lot easier just to use an LL(k) tool. In theory, any LL(k) language can be refactored to be LL(1), but refactoring a "greater than small k" language is usually impractical due to explosive growth of the resulting LL(1) grammar. George
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LR(1) Parsing : Error Handling & Recovery Seima Rao <seimarao@gmail.com> - 2014-07-10 05:30 +0530
Re: LR(1) Parsing : Error Handling & Recovery Ivan Godard <ivan@ootbcomp.com> - 2014-07-16 16:39 -0400
Re: LR(1) Parsing : Error Handling & Recovery Evangelos Drikos <drikosev@otenet.gr> - 2014-07-17 20:15 +0300
Re: LR(1) Parsing : Error Handling & Recovery Ivan Godard <ivan@ootbcomp.com> - 2014-07-17 13:03 -0700
Re: LR(1) Parsing : Error Handling & Recovery Ivan Godard <ivan@ootbcomp.com> - 2014-07-17 13:57 -0700
Re: LR(1) Parsing : Error Handling & Recovery wclodius@earthlink.net (William Clodius) - 2014-07-18 13:41 -0600
Re: LR(1) Parsing : Error Handling & Recovery Stefan Monnier <monnier@iro.umontreal.ca> - 2014-07-18 21:09 -0400
Re: LR(1) Parsing : Error Handling & Recovery Hans-Peter Diettrich <DrDiettrich1@aol.com> - 2014-07-19 12:04 +0200
Re: LR(1) Parsing : Error Handling & Recovery Stefan Monnier <monnier@iro.umontreal.ca> - 2014-07-20 10:28 -0400
Re: LR(1) Parsing : Error Handling & Recovery Hans-Peter Diettrich <DrDiettrich1@netscape.net> - 2014-07-21 10:46 +0200
Re: LR(1) Parsing : Error Handling & Recovery Stefan Monnier <monnier@iro.umontreal.ca> - 2014-08-06 21:32 -0400
Re: LR(1) Parsing : Error Handling & Recovery arnold@skeeve.com (Aharon Robbins) - 2014-07-20 06:05 +0000
Re: LR(1) Parsing : Error Handling & Recovery George Neuner <gneuner2@comcast.net> - 2014-07-17 18:49 -0400
Re: LR(1) Parsing : Error Handling & Recovery wclodius@earthlink.net (William Clodius) - 2014-07-18 13:41 -0600
Re: LR(1) Parsing : Error Handling & Recovery Hans Aberg <haberg-news@telia.com> - 2014-07-19 15:29 +0200
Re: LR(1) Parsing : Error Handling & Recovery Evangelos Drikos <drikosev@otenet.gr> - 2014-07-20 00:40 +0300
Re: LR(1) Parsing : Error Handling & Recovery Hans Aberg <haberg-news@telia.com> - 2014-07-20 01:38 +0200
Re: LR(1) Parsing : Error Handling & Recovery Evangelos Drikos <drikosev@otenet.gr> - 2014-07-21 15:20 +0300
Re: LR(1) Parsing : Error Handling & Recovery Hans Aberg <haberg-news@telia.com> - 2014-07-21 18:39 +0200
Re: LR(1) Parsing : Error Handling & Recovery Evangelos Drikos <drikosev@otenet.gr> - 2014-08-26 13:44 +0300
Re: LR(1) Parsing : Error Handling & Recovery Hans Aberg <haberg-news@telia.com> - 2014-08-29 11:13 +0200
Re: split tokens; was LR(1) Parsing : Error Handling & Recovery Evangelos Drikos <drikosev@otenet.gr> - 2014-09-03 16:57 +0300
Re: LR(1) Parsing : Error Handling & Recovery Hans Aberg <haberg-news@telia.com> - 2014-09-03 19:07 +0200
Re: LR(1) Parsing : Error Handling & Recovery George Neuner <gneuner2@comcast.net> - 2014-07-20 01:19 -0400
Re: LR(1) Parsing : Error Handling & Recovery wclodius@earthlink.net (William Clodius) - 2014-07-20 21:43 -0600
Re: LR(1) Parsing : Error Handling & Recovery wclodius@earthlink.net (William Clodius) - 2014-07-21 21:44 -0600
Re: LR(1) Parsing : Error Handling & Recovery Chris Dodd <cdodd@acm.org> - 2014-07-21 06:07 +0000
Re: LR(1) Parsing : Error Handling & Recovery George Neuner <gneuner2@comcast.net> - 2014-07-25 21:58 -0400
Re: LR(1) Parsing : Error Handling & Recovery Chris Dodd <cdodd@acm.org> - 2014-07-26 21:16 +0000
Re: LR(1) Parsing : Error Handling & Recovery Hans-Peter Diettrich <DrDiettrich1@netscape.net> - 2014-07-28 14:43 +0200
Re: LR(1) Parsing : Error Handling & Recovery Chris Dodd <cdodd@acm.org> - 2014-07-29 19:38 +0000
Re: LR(1) Parsing : Error Handling & Recovery Eric <news@fx29.iad.highwinds-media.com> - 2014-07-16 16:40 -0400
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