Subject: RE: using substring-functions more than once in a node?
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Tue, 26 Mar 2002 14:25:55 -0500
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Mario--
Of course, if your footnotes appeared as markup (e.g. <fn> elements) this
would be *so* much easier.
In effect, you're having to use XSLT to parse your own custom markup. Hence
the recursive template in David's solution.
You might consider a pre-pass over the data before you use XSLT on it,
changing, for example, the regular expression (I use a syntax my text
editor knows) "(FN \([0-9]+\))" to "<FN no="\1"/> so you have <FN no="99"/>
in your data instead of (FN 99). The transform would then be trivial.
Cheers,
Wendell
At 01:47 PM 3/26/2002, David McNally wrote:
Hi.
You can define a template that matches a footnote, and calls itself
recursively so that it gets them all. Something like this (untested):
<xsl:template name="doFootnotes">
<xsl:param name="string"/>
<xsl:choose>
<xsl:when test="contains($string,'(FN ')">
<xsl:variable name="before">
<xsl:value-of
select="substring-before($string,'(FN ')"/>
</xsl:variable>
<xsl:variable name="number">
<xsl:value-of
select="substring(substring-after($string,'(FN '),1,1)"/>
</xsl:variable>
<xsl:variable name="after">
<xsl:value-of
select="substring(substring-after($string,'(FN '),2)"/>
</xsl:variable>
<xsl:value-of select="$before"/>
<xsl:text>(FN </xsl:text>
<a>
<xsl:attribute name="href">
<xsl:text>#FN_target_</xsl:text>
<xsl:value-of select="$number"/>
</xsl:attribute>
<xsl:value-of select="$number"/>
</a>
<xsl:call-template name="doFootnotes">
<xsl:with-param name="string"
select="$after"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
You would then call it somthing like this:
<xsl:template match="para">
<xsl:call-template name="doFootnotes">
<xsl:with-param name="string" select="."/>
</xsl:call-template>
</xsl:template>
This template only works because you say the footnote numbers are only one
digit - if you reached footnote 10, you'd need something cleverer....
Hope this helps,
David.
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Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc. http://www.mulberrytech.com
17 West Jefferson Street Direct Phone: 301/315-9635
Suite 207 Phone: 301/315-9631
Rockville, MD 20850 Fax: 301/315-8285
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