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RE: [xsl] using substring-functions more than once in a node?

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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
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Suite 207                                          Phone: 301/315-9631
Rockville, MD  20850                                 Fax: 301/315-8285
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