Tucker and Henry and Jim, and Oliver if you're out there, can you give an estimate of the ratio of (well engineered, should be preserved, necessary) to (cruft, messy, needs maintenance badly) in the schema generation process?
Can anyone recommend a source for learning about the relationships between XML Schemas, Relax NG, and DTD? On May 10, 2006, at 9:07 PM, Jim Grandy wrote: > On May 10, 2006, at 7:51 PM, Benjamin Shine wrote: >> So, let me ask the meta-question: what do we do with all these >> schemas? Do we need all the different dialects that we're producing? >> > > Well, my understanding may be only partial, or it may be entirely > incorrect since I didn't write the code, but here's what I think is > going on. > > There is a core schema (lzx.rnc), written in "RELAX NG" compact > syntax, describing basically what is in the LFC. We use Jing/Trang > to convert this specification into a full schema (the dtd). > > When the tag compiler encounters a new class definition, it > generates a schema extension that is effectively appended to the > DTD and reprocessed to form a new DTD. This DTD is used for > validation while processing LZX markup. > > (There is a separate DTD, manually maintained, that is used for > validation and symbol completion in IDE4Laszlo.) > > In addition, we do schema-like things in order to generate the > RefGuide. We pull most of what would go into a DTD out of the LFC > sources, and also (using a slightly different code path) out of the > components. This information is used to generate an XML document -- > not a DTD, I don't think -- that is combined with the (manually > written) wrapper pages to generate the final RefGuide pages. > > I think that's going on. Anyone who knows this stuff better: please > correct me! > > jim > >> >> On May 10, 2006, at 4:22 PM, Jim Grandy wrote: >> >>> On May 10, 2006, at 3:05 PM, Benjamin Shine wrote: >>> >>>> >>>> Who is the owner/caretaker of trang? >>>> >>> I think at this point some combination of Henry, Tucker, and me. >>> >>>> It seems to be another legacy 3rd party library complicating >>>> deployment... and it was last updated in 2003. >>>> >>> According to http://www.thaiopensource.com/relaxng/trang.html, >>> that's the most recent release. >>>> It's purpose seems to be convert lzx.rnc (Relax NG compact schema) >>>> into rng, dtd, and xsd. I bet that there is something more modern/ >>>> supported that does that, which our build can invoke. Any >>>> suggestions? >>>> >>> I spent some time looking into this for jing, and I don't think >>> there's anything more modern. >>>> -ben >>>> _______________________________________________ >>>> Laszlo-dev mailing list >>>> [email protected] >>>> http://www.openlaszlo.org/mailman/listinfo/laszlo-dev >>> >> >> benjamin shine >> software engineer >> [EMAIL PROTECTED] >> >> >> > benjamin shine software engineer [EMAIL PROTECTED] _______________________________________________ Laszlo-dev mailing list [email protected] http://www.openlaszlo.org/mailman/listinfo/laszlo-dev
