On Apr 5, 2007, at 1:49 PM, Charles Iliya Krempeaux wrote:
You can do other sophisticated stuff with the "type" attribute to...
since it holds a "Content Type" and not just a "MIME type". So you
can add parameters to it too.
The distinction between "content type" and "MIME type" doesn't seem
very clear in the HTML spec:
http://www.w3.org/TR/html401/types.html#type-content-type
The header "Content types (MIME types)" seems to suggest they're
interchangeable terms, though they're apparently not as "text/html;
charset=UTF-8" is a valid content type, but not a valid MIME type.
Does anyone know of a reference where the definition of "content
type" is made more clear? Are there any existing standards around
sub-parameters of content types?
I also wonder whether this is appropriate when the additional human-
readable file information is published somewhere other than the
link. For example, this is a snippet from a screen-scraping tool I
made to provide download links for video files:
<div>
<div>
<img src="http://www.comedycentral.com/images/shows/tds/videos/
wilmore/12044_wilmore_m1.jpg"/>
<p>3:32</p>
</div>
<h1>Frog Princess</h1>
<p>Larry Wilmore explains that when you wish upon a star, it makes a
difference who you are.</p>
<ul>
<li><a href="http://a1136.c.akamai.net/n/1136/9950/v001/
comedystor.download.akamai.com/9951/_!/com/dailyshow/wilmore/
wilmore_12044_480.flv?
__gda__=1175813754_e1a844fd4dfd872bf13b8bc96b430a04">Download Low
Quality Flash Video File</a></li>
<li><a href="http://a1136.c.akamai.net/n/1136/9950/v001/
comedystor.download.akamai.com/9951/_!/com/dailyshow/wilmore/
wilmore_12044_480.flv?
__gda__=1175813224_a83ec303f5e664e4f66c006e4deba362">Download High
Quality Flash Video File</a></li>
</ul>
</div>
I publish human-readable file types, bitrates (low vs. high quality),
and lengths, so it would be nice to have machine-readable versions of
all of that information. I could add type="application/x-shockwave-
flash; length: 212; bitrate=128" to the links, and that would seem to
make sense for the MIME type and bitrate, which are published in
human-readable form within the link. But the length is published
outside the link, so it seems a little awkward to be publishing the
machine-readable version of that in the link.
--
Scott Reynen
MakeDataMakeSense.com
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