Sam Steingold wrote:
Hi,
I maintain clisp (http://clisp.cons.org), in particular, the clisp
manual ("implementation notes") in DocBook/xml format.
the manual has a lot of links to the CLHS (Common Lisp HyperSpec, the
HTML version of the ANSI standard).
I keep them in the form
<ulink role="clhs" url="sec_11-1-2-1-2"/>
which is converted by
<xsl:param name="clhs.top" select="'http://www.lisp.org/HyperSpec/'"/>
<xsl:param name="clhs.body" select="concat($clhs.top, 'Body/')"/>
<xsl:template match="[EMAIL PROTECTED]'clhs']">
<xsl:choose><xsl:when test=".=''">
<a class="[EMAIL PROTECTED]" href="[EMAIL PROTECTED]"><xsl:text>[</xsl:text>
<xsl:value-of select="@url"/>
<xsl:text>]</xsl:text></a></xsl:when>
<xsl:otherwise>
<a class="[EMAIL PROTECTED]"
href="[EMAIL PROTECTED]"><xsl:apply-templates/></a>
</xsl:otherwise></xsl:choose></xsl:template>
alas, there are two versions of CLHS around, the older one (for which
the above is geared) and the newer one, with a different page naming
system.
specifically, section 11.1.2.1.2 which is sec_11-1-2-1-2.html is the
older version is now 11_abab.html while chap-11.html is now 11_.html.
I want to be able to generate clisp impnotes which link to either
version based on a variable setting at processing time.
This would mean that I would have to write an xslt function mapping an
array of integers #(11 1 2 1 2) to either sec_11-1-2-1-2 or 11_abab.
How do I do that?
To begin with, I don't even know how to iterate (or recurse) in xslt.
I use xsltproc on linux.
<xsl:variable name='ver' select="'1.0'"/>
<xsl:template match="[EMAIL PROTECTED]'clhs']">
<xsl:variable name='target'>
<xsl:choose>
<xsl:when test="$ver = '1.0'>
<xsl:value-of select="$ver1URL">
<xsl:otherwise>
<xsl:value-of select="$ver2URL">
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:choose><xsl:when test=".=''">
<a class="[EMAIL PROTECTED]" href="[EMAIL PROTECTED]"><xsl:text>[</xsl:text>
<xsl:value-of select="@url"/>
<xsl:text>]</xsl:text></a></xsl:when>
<xsl:otherwise>
<a class="[EMAIL PROTECTED]" href="[EMAIL PROTECTED]">
<xsl:apply-templates/></a>
</xsl:otherwise></xsl:choose></xsl:template>
Which assumes $ver1URL points to version 1 of CLHS
and $ver2URL points to version 2 of CLHS
HTH
regards
--
Dave Pawson
XSLT XSL-FO FAQ.
http://www.dpawson.co.uk
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