New set of patches for 0.6.0

Terje, thanks for looking into my patches again; here's some comments
and a new set of them.

> * base-css.patch
> - Applied (apart from the style for "label" that I forgot,
>   but will be in the next checkin).

Not necessary, I think, see the updated HTML patch below.

> * check-cfg.patch:
> - Applied and expanded on.

Ok.  There may be something weird in the CVS, check.cfg and tips.cfg are
shown in the Attic?  However, checkout of validator-0_6_0 works ok and
fetches these files too.
http://dev.w3.org/cvsweb/validator/htdocs/config/?hideattic=0&only_with_tag=validator-0_6_0

> * check-protocols.patch:
> - Applied.
> - Also led to some infrastructure work that was much needed.
>   I reworked your patch slightly to fit into this new scheme.

I realized that this patch was pretty ugly and insufficient, and
accidentally found out that the same functionality is actually in
libwww-perl 5.53_94 and newer.  The new version below still takes
advantage of the new "exception framework", but also adds a
configuration option for allowed protocols, defaulting to HTTP and
HTTPS.

Also, a similar implementation for checklink.pl, using
$ua->protocols_allowed() would clean it up somewhat.

Quick comments about the new patches:
- check-html.patch: HTML related fixes.
- check-paths.patch: Portability patch.
- check-protocols.patch: Cleaner and better supported/allowed protocol
handling.
- checklink-options.patch: Improved command line option handling.
- checklink-cleanup.patch: General cleanups and HTML fixes.
- also available from http://cachalot.ods.org/patches/w3c-validator/ and
http://koti.welho.com/vskytta/patches/w3c-validator/

Then, a few comments to the TODO list at
http://validator.w3.org:8001/todo.html
[0.6.0, 1.]
- I tried the absolute URI fixup a few months ago to make validator
easier to install locally, and found it generally possible, but the
currently used SSI's are a problem.  Also the http://foo/check/referer
needs to be taken care of (at least if there is a "Revalidate" link on
the page).

[Misc, 25,33.]
- SSL/TLS and the error count seem to be already covered by recent
updates.

[Misc, new entry]
- Check if this needs a fix:
http://lists.w3.org/Archives/Public/www-validator/2002Mar/0055.html

Cheers,
-- 
Ville Skyttä
ville.skytta@iki.fi