[xml/sgml-pkgs] Bug#662091: help

Nicholas Bamber nicholas at periapt.co.uk
Tue Mar 6 20:21:28 UTC 2012

tag 662091 +patched

	Thanks for your help. Of course it never comes at the best time but I
will try and get back into this over the next few weeks. I could not
find anyone to talk to when I packaged this. I think
w3c-markup-validator is the only package that depends on it, even if it
is screwing up other packages so I need to think though the
implications. It should be possible to validate SGML through the markup
validator and that would be a good test. For my personal usage I only
ever test one narrow version of XHTML so I need to broaden my horizons.
Please be around when I get back to this as I will probably have questions.

On 06/03/12 19:48, Samuel Bronson wrote:
> On Mon, Mar 5, 2012 at 5:45 PM, Nicholas Bamber <nicholas at periapt.co.uk> wrote:
>> Samuel,
>>        I am sorry you had issues with w3c-sgml-lib. I put the package together
>> because what went before (w3c-dtd-xhtml) could not be kept up with the
>> w3C which I saw as the upstream. Some things I did in the package wee an
>> attempt at backwards compatibility. However I am now busy with quite a
>> few other things and I reckon you know how this stuff works better than
>> I do. So I would really appreciate it if you were able to offer a patch.
> Well, the simplest remedy for *this* problem would be to
> remove/comment out both lines in debian/sgmlcatalog, e.g. using the
> appended patch, but in poking around a bit, I ran into several other
> problems:
> First of all, there certainly *are* a bunch of broken symlinks:
> http://lintian.debian.org/full/debian-xml-sgml-pkgs@lists.alioth.debian.org.html#w3c-sgml-lib
> has a list of these.
> Second, it installs copies of/links to the top-level "catalog.xml"
> (and the translation to SGML Open Catalog format, "catalog") in
> subdirectories (in the name of "compatability") which, like the copies
> of sgml.soc and xml.soc presently installed in /usr/share/sgml/xhtml/,
> reference other files using relative paths and are thus broken by
> being relocated separately from them.
> Third, it installs all of the upstream files under
> /usr/share/xml/xhtml/schema/dtd/, even though:
>  * The name of the package is "w3c-sgml-lib", which leads one to
> expect things to be installed under /usr/share/sgml.
>  * Several of the directories actually concern SGML-based versions of
> HTML, and would seem more at home somewhere like /usr/share/sgml/html/
>  * There are also a few directories devoted to things like MathML and
> SVG, which, while they are XML applications, still aren't  XHTML and
> so still seem out of place where they are.
> Now, there *are* some good reasons to install this way:
>  * Upstream's catalog files (catalog.xml, sgml.soc, and xml.soc) cater
> to this layout.
>  * They could probably be split between /usr/share/sgml and
> /usr/share/xml, but it would be a pain to keep track of what went
> where, make sure that everything got installed somewhere, and perhaps
> also to get w3c-markup-validator to look in both places.
> So, considering all of this, and the fact that you don't include all
> of the same DTDs as w3c-dtd-xhtml, I would recommend that you relocate
> everything to /usr/share/sgml/w3c-sgml-lib, (perhaps symlinked from
> /usr/share/xml/w3c-sgml-lib ?), drop the Provides:/Conflicts: on
> w3c-dtd-xhtml, declare a Breaks: on existing versions of
> w3c-markup-validator, and upload a new version of the validator that
> requires the new version of w3c-sgml-lib.
> The justifications for this path being:
>  * XML is a kind of SGML, but not the other way 'round, so if we're
> going to install everything in one place, the SGML place is the better
> of the two.
>  * Since there is no one format [family] to name the directory after,
> we go with the traditional rule "just use the package name".
> Anyway, here's the patch to fix the immediate problem I encountered:
> Index: debian/sgmlcatalogs
> ===================================================================
> --- debian/sgmlcatalogs (revision 1916)
> +++ debian/sgmlcatalogs (working copy)
> @@ -1,3 +1,7 @@
> -htdocs/sgml-lib/sgml.soc /usr/share/sgml/xhtml/sgml.soc
> -htdocs/sgml-lib/xml.soc /usr/share/sgml/xhtml/xml.soc
> +# There may be useful stuff in these, but they also set some
> +# non-working default SGML declarations, so we can't safely add them
> +# to the system-wide /etc/sgml/catalog.
> +# htdocs/sgml-lib/sgml.soc /usr/share/sgml/xhtml/sgml.soc
> +# htdocs/sgml-lib/xml.soc /usr/share/sgml/xhtml/xml.soc
> +
> Index: debian/changelog
> ===================================================================
> --- debian/changelog    (revision 1916)
> +++ debian/changelog    (working copy)
> @@ -1,3 +1,14 @@
> +w3c-sgml-lib (1.2-2~naesten1) unstable; urgency=low
> +
> +  * Don't link sgml.soc and xml.soc into /etc/sgml/catalog -- they are
> +    specially crafted for use with w3c-markup-validator, and set things
> +    that shouldn't be set globally.
> +  * Also don't install sgml.soc and xml.soc into /etc/sgml/xhtml/ -- they
> +    don't work there anyway, since they refer to many other files by
> +    relative paths, none of which are found there.
> +
> + -- Samuel Bronson <naesten at gmail.com>  Tue, 06 Mar 2012 13:13:13 -0500
> +
>  w3c-sgml-lib (1.2-1) unstable; urgency=low
>    * New upstream release

Nicholas Bamber | http://www.periapt.co.uk/
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