[ php-blog-Bugs-1474290 ] dashes in title causes XHTML error

Bugs item #1474290, was opened at 2006-04-21 16:41
Message generated for change (Comment added) made by garvinhicking
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Category: None
Group: None
Status: Open
>Resolution: Accepted
>Priority: 2
Submitted By: Rhett Robinson (rhett_robinson)
Assigned to: Garvin Hicking (garvinhicking)
Summary: dashes in title causes XHTML error

Initial Comment:
I am running serendipity-1.0-beta2 (upgraded from
0.8-beta4 where I noticed the bug), and found the
following:  if I put dashes in a title (e.g.
"Title--more details") it causes the page to not
validate as XHTML 1.0 Transitional.

In particular, the following comments appear in the HTML:

<!--
        <rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
                
xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/"
                
xmlns:dc="http://purl.org/dc/elements/1.1/">
        <rdf:Description
                
rdf:about="http://mysite.com/blog/index.php?/feeds/ei_148.rdf"
                
trackback:ping="http://mysite.com/blog/comment.php?type=trackback&amp;entry_id=148"
                 dc:title="Title--more details"
                
dc:identifier="http://mysite.com/blog/index.php?/archives/148-Title-more-details.html"
/>
        </rdf:RDF>
        -->

and, in particular, the appearance of "--" in
'dc:title="Title--more details"' seems to cause a
validation error.

This results, for example, in Firefox 1.5.0.2
displaying --> after the entry.

----------------------------------------------------------------------

>Comment By: Garvin Hicking (garvinhicking)
Date: 2006-04-22 12:28

Message:
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Hi!

Sadly, printing the RDF comment title is done in the
entries.tpl templates, so we cannot fix it out of the box
for all templates. We'd need to modify every existing
template to replace "--" with "-". I'll try to do that with
out bundled and additional themes the next days.

Thanks for pointing me to the URL!

----------------------------------------------------------------------

Comment By: Rhett Robinson (rhett_robinson)
Date: 2006-04-21 20:54

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The document linked to below explicitly states that for
compatibility (with SGML) the string "--" (double-hyphen)
must not occur within comments.  Having the double-hyphen in
the comments therefore violates well-formedness.  And, as I
have mentioned, including the double-hyphen in a comment
does cause the validator at validator.w3.org to fail.  I'm
not entirely sure of where the fault lies (admittedly
Firefox could probably handle this non-well-formedness
better), but I thought I'd bring this to your attention
again.  Thanks. 

http://www.w3.org/TR/REC-xml/#sec-comments

----------------------------------------------------------------------

Comment By: Garvin Hicking (garvinhicking)
Date: 2006-04-21 18:11

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Sadly this is a strange display issue of Firefox. There's no
reason it turns those "--" into invalid characters. I also
cannot find any RFC that says "--" are forbidden in XHTML
(metadata). So honestly I think this is a thing that needs
fixing in Firefox. It does not show in RSS readers or other
browser AFAIK.

----------------------------------------------------------------------

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