Add and Subtract to numerical suffix

[JackFrost]

Any suggestion for an XSLT script where I can transfor this:

<a href="chapter-15.xhtml#b838"><span id="b235"/>


to this:

<a href="chapter-15.xhtml#b840"><span id="b232"/>


I just added 2 to the a href tag and subtracted 2 from the span id tag

Thanks in advance

[Radu]

Hi,

The XSLT stylesheet would need to look something like this:

Code: Select all

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <xsl:output method="xml" indent="no"/>

    <!-- Match document -->

    

    <xsl:template match="a[contains(@href, '#b')][span]" mode="copy">

        <a>

            <xsl:variable name="base" select="substring-before(@href, '#b')"/>

            <xsl:variable name="numericAnchor" select="xs:integer(substring-after(@href, '#b')) + 2"/>

            <xsl:attribute name="href">

                <xsl:value-of select="concat($base, '#b', $numericAnchor)"/>

            </xsl:attribute>

            <xsl:apply-templates mode="copy"/>

        </a>

    </xsl:template>

    <xsl:template match="span[starts-with(@id, 'b')][parent::a[contains(@href, '#b')]]" mode="copy">

        <a>

            <xsl:variable name="numericAnchor" select="xs:integer(substring-after(@id, 'b')) - 2"/>

            <xsl:attribute name="href">

                <xsl:value-of select="concat('b', $numericAnchor)"/>

            </xsl:attribute>

            <xsl:apply-templates mode="copy"/>

        </a>

    </xsl:template>

    

    <xsl:template match="/">

        <xsl:apply-templates mode="copy" select="."/>

    </xsl:template>

    <!-- Deep copy template -->

    <xsl:template match="*|text()|@*" mode="copy">

        <xsl:copy>

            <xsl:apply-templates mode="copy" select="@*"/>

            <xsl:apply-templates mode="copy"/>

        </xsl:copy>

    </xsl:template>

    <!-- Handle default matching -->

    <xsl:template match="*"/>

</xsl:stylesheet>

Ideally you should pose XSLT-related issues on the XSLT mailing list:

http://www.mulberrytech.com/xsl/xsl-list/

Regards,
Radu