Garrett A. Wollman
Philip Greenspun's Homepage : Community member
A member of the Philip Greenspun's Homepage community since January 26, 1998
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- April 6, 1998, on Learn to Program HTML in 21 Minutes :
To expand a little bit on the discussion:
HTML is an application of SGML. SGML is good.
Part of the definition of HTML (in SGML) specifies:
MINIMIZE
OMITTAG YES
SHORTTAG YES
In SGML-speak, this specifies two useful features.
First, any tag which could be deduced from the
structure of the document may be omitted. This
includes not only , but also ,
,
, and many others. The second feature,
SHORTTAG, allows markup to be expressed more
concisely, e.g., Shortened
End Tags for Fun and Profit.
Unfortunately, since very few Web browsers
actually implement HTML as is it formally defined,
these features cannot be relied upon. However,
it is a Simple Matter of Programming to combine
existing SGML tools with `make' and a copy of the
HTML DTD to automatically process Web documents
through an SGML normalizer which transforms HTML
into a common subset understood by all browsers.
At the same time, other advanced SGML feat...
- April 14, 1998, on Communications:
You describe MPEG-2 as ``better than a VCR but
not HDTV''. Sorry to disappoint, but HDTV
(more correctly called DTV or ATV) *is* MPEG-2.
The TV broadcasters are finally figuring out that
there's a lot more money to be made in delivering
five streams of slightly-better-than-NTSC than
there is in delivering one stream of
quite-a-lot-better-than-NTSC.
philg@mit.edu