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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Which latest and greatest XML Standards Should I UseFor XM
 Hi Liam, On Tue, 13 Nov 2012 14:28:01 -0500 Liam R E Quin <liam@w3.org> wrote: > On Tue, 2012-11-13 at 20:45 +0200, Shlomi Fish wrote: > > Hi all, > > > > I have defined an XML grammar titled XML-Grammar-Fortune (see > > http://web-cpan.shlomifish.org/modules/XML-Grammar-Fortune/ ), which I use > > to mark up UNIX-like fortune cookies and quotations (see > > http://www.shlomifish.org/humour/fortunes/ for examples and resultant XHTML > > and plain text outputs), and which is based on XML. > > > > Now, I have considered modernising the grammar somewhat and possibly > > incorporate the following elements: > > > > 1. Using xml:id instead of a plain "id=""" attribute as well as xml:lang and > > other xml: standard attributes. > > The advantage of xml:id is questionable here; it's most likely to be > useful if documents in other formats point into your documents. > Well, they can, like in this: http://www.shlomifish.org/humour/fortunes/shlomif.html#hi-sophie So far I used plain id="..." attribute. > xml:lang, on the other hand, is a definite win. OK. > > xml:base can be used for resolving relative application-layer links, but > it seems unlikely you'll need that here. > I see. > > 2. Making a judicious use of XML namespaces. > > Unless people will be mixing your format with others, or you want to > include other formats in yours, namespaces will only complicate life for > no great benefit. XPath expressions will no longer match unless you > prefix every name, for example. It's a trade-off, though. > Ah. > > Right now the <screenplay>-typed > > tags were done in a hackish way by copy-pasting the RELAX NGs and XSLTs > > contents > > http://www.shlomifish.org/open-source/projects/XML-Grammar/Fiction/ , but > > they may be better doable using namespaces. One thing that worries me is > > whether I'll need to do sometihng like xmlns="[LONG URL HERE]" everytime I > > want to use them. > > Yes. > I see. > > 3. I have defined well-formed plaintext grammars for XML-Grammar-Fiction and > > XML-Grammar-Screenplay (see the above link), which gets translated to the > > custom XML grammars (and from there to other XMLs using XSLT), and I wonder > > whether I can do the same for XML-Grammar-Fortune. Is there a good tool for > > doing something like that with ease? > > I believe there's a parser generator that reads EBNF but don't know if > it can spit out XSD. > OK. > > 4. Should I use XSLT 2.0 and/or XPath 2.0? Right now I prefer to use Perl 5 > > with the XML::LibXSLT CPAN module that is in turn based on libxslt from the > > GNOME project, and from what I know, the only full open-source XSLT 2.0 > > implementation is Saxon, which is written in Java. > > I prefer to use XQuery from Perl, e.g. with the BaseX API, and can help > you with that if you like. There is also dbxml, but since Oracle > swallowed up Sleepycat I don't know if it's maintained actively. > Well, for what it's worth, I don't see how XQuery will help me here, and I'd prefer to stick with XSLT (even XSLT 1.0). > I don't know of an open source XSLT 2 processor that's easily used on > Linux from Perl. Saxon is the nearest, and you can get reasonable > performance if you run it with nailgun, which keeps a spare JVM started > all the time to avoid the startup cost, but it will still run in a > separate process. A few people have tried moving libxml towards XSLT 2, > but have not collaborated with each other, and in any case it'd probably > be better to start with getting XSLT 2 (and 3) into webkit. OK. I wasn't aware there was XSLT 3 already. Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ Freecell Solver - http://fc-solve.shlomifish.org/ Chuck Norris can end world hunger, but he thinks that hungry people make humanity a more challenging adversary. Please reply to list if it's a mailing list post - http://shlom.in/reply . 
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