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From: Hans Hagen <pragma@wxs.nl>
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Subject: Re: ConTeXt + TEI (an SGML derivate)
Date: Thu, 27 Apr 2000 11:29:44 +0200
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Hi Tobias and Johannes, 

>> I would like to typeset some TEI documents (see
>> http://etext.lib.virginia.edu/TEI.html and
>> http://www.uic.edu:80/orgs/tei/ and http://www.tei-c.org/). What's the
>> best way to proceed? (Ok I could try to write a PERL phraser which
>> translates everything into ConTeXt constructs, but this doesn't seem to
>> be the best way.)
>
>I currently see two options, both of which take quite some work:
>
>- Convert the TEI source with some style sheet into visual markup which
>  is parsed by ConTeXt.
>
>- Re-write the original file, retaining the original structure, but in a 
>  ConTeXt syntax. That means: Replace "<mytag>foo bar</mytag>" by
>  "\startmytag foo bar\stopmytag". Next, write a module which does the
>  TeX formatting.
>
>I would opt for the second version if a stylesheet does not exist. If a
>stylesheet exists, I would rather go for plain TeX than ConTeXt as the
>output of the style sheet is rather visual than content related.

The last few months I've done quite some experiments with using xsl as well
as perl for going from xml to context (and pdf). I looked at a lot of dtd's
and also at tei. Both methods work ok. 

One way of doing it is to use a simple xslt style sheet that maps elements
onto context commands. In most cases one can ignore attributes, since they
are handled at the style level. Things like: 

<chapter>whatever</chapter>

are mapped by 

<xsl:template match="chapter">
\chapter{<xsl:apply-templates/>}
</xsl:template>

to 

\chapter{whatever}

Hans

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