[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Whence XQL?
Sorry for the cross post. I read most of those position papers as well. But the one by Jonathan Robie, Texcel, Inc. Joe Lapp, webMethods, Inc. and David Schach, Microsoft Corporation seemed the most complete. It even has a BNF for a parser for XQL. It occurred to me that someone might have taken that BNF and made it into something by now. One assumes that MS or the one other co-author's companies might be doing that in the their skunk works, about to release something. The papers described different syntatical forms. The XSLish one of XQL(MS) seemed useful especially in light of embedding it in CGI-like urls. I am just experimenting, but in the hope that this might become another xml-dev mini-project. So far I have the BNF translated to a ANTLR grammer. I had to fix one infinite recursive definition in the original file (filter). I also had to decide which things were tokens and which were true productions. It is still broken at this point because it generates many non-determinisms. Most of these are due to the tendancy to represent things like Text and NCName as starting out with Letter and continuing through to Letters again via some path. I'm going to have to research how to do this better. I'd like to preserve the nomenclature of the article so everybody is operating with the same documentation, which is at http://www.w3.org/TandS/QL/QL98/pp/xql.html BTW. The parser it generates works on a few items but not entirely. If anybody shows any interest and has experience with ANTLR, I'll post it and we can collaborate. Ed -----Original Message----- From: Avi Rappoport [mailto:avirr@L...] Sent: Wednesday, March 24, 1999 9:53 PM To: Ed Howland; 'xml-dev@i...'; 'xsl-list@m...' Subject: Re: Whence XQL? At 7:24 PM -0800 3/24/1999, Ed Howland wrote: >Ok, so now it is April (or thereabouts) and still no XQL. I've read all the >hypeware about this and I understand that its just a suggestion for a >proposal for a note for a draft for a recommendation. Whatever. >I want my XQL! There's a great article by Lisa Rein on the W3C Query Workshop late last year -- I'm sure it's still at XML.com. There are links from the article to the position papers of the participants, and I found them fascinating and enlightening. There are a *lot* of issues to be solved! Avi ________________________________________________________________ Avi Rappoport, Search Tools Maven: <mailto:avirr@l...> Guide to Site Indexing and Local Search Engines: <http://www.searchtools.com> xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...) xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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