Re: [gentoo-project] Call for Agenda Items -- Council Meeting 2016-02-14

[Ulrich Mueller <ulm@gentoo.org>]

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>>>>> On Tue, 2 Feb 2016, Robin H Johnson wrote:

> Is Trang still actively maintained by upstream? Last release looks
> like 2009?

No idea. It seems to work just fine, though.

> It also cannot convert FROM XML-Schema, only TO XML-Schema.
> There is also MSV, dev-java/msv, with a last release in 2013.

Hm, how does one use MSV for conversion? There's little documentation
included with the package.

>> >>>>> On Wed, 27 Jan 2016, Ulrich Mueller wrote:
>> > Do we have a tool (i.e. a package in the tree) for automatic
>> > conversion from XML Schema to RNC?
>> Since nobody has replied to this, I suppose that we have no such
>> tool? That would be a strong argument for RNG as the source format.

> All you need is xsltproc, which is part of libxslt/libxml.

> XSL transform: XSD -> RNG
> https://github.com/epiasini/xsdtorng

> XSL Transform: XSD -> DTD
> http://bsp.mits.ch/code/xslt/zxsd2dtd
> http://crism.maden.org/consulting/pub/xsl/xsd2dtd.xsl
> These two are very similar, differing only in a comment block
> warning that some RNG/XML-Schema constraints cannot be represented
> in DTD.

It would be nicer if these were released under a free software
license. I don't think that http://bsp.mits.ch/download/lizenz
qualifies (as it allows only private use and distribution at no
charge). Sorry to be pedantic.

> Both Trang and MSV are also Java, whereas the XSLT transforms are
> usable without Java.

Please correct me if I'm wrong, but my general impression is that
the situation with respect to converters leaves much to be desired.
At least, if we require a tool that is both well maintained and free
software.

Ulrich

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