On 6 Jan 2017, at 19:41, David Carlisle
d(_dot_)p(_dot_)carlisle(_at_)gmail(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
I'd have written it as a function rather than template, but the main
issue is you want your parameter to be (always) a sequence of elements
not sometimes a sequence of elements and sometimes a document node
with a sequence of child elements.
And the best way of ensuring that is to declare the types e.g.
<xsl:param name="regex" as="element(regex)*/>
which (a) documents what you are expecting for the benefit of the human reader,
(b) gives you a type error if the caller supplies the wrong type of value, and
(c) gives the optimizer more information to work with.
Michael Kay
Saxonica
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
exclude-result-prefixes="xs"
version="2.0">
<xsl:output indent="yes"/>
<xsl:param name="regexes">
<regex><find>a</find><change>x</change></regex>
<regex><find>b</find><change>y</change></regex>
<regex><find>c</find><change>z</change></regex>
</xsl:param>
<xsl:template match="/">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="p">
<p><xsl:apply-templates/></p>
</xsl:template>
<xsl:template match="text()"><!--[string-length(.)>0]-->
<xsl:message select="."></xsl:message>
<xsl:call-template name="applyRegexes">
<xsl:with-param name="nodeText" select="."/>
<xsl:with-param name="regex" select="$regexes/regex"/>
</xsl:call-template>
</xsl:template>
<xsl:template name="applyRegexes">
<xsl:param name="nodeText"/>
<xsl:param name="regex"/>
<xsl:message select="$regex"></xsl:message>
<xsl:message select="$regex[1]"/>
<xsl:message select="$regex[position()>1]"/>
<xsl:choose>
<xsl:when test="$regex">
<xsl:call-template name="applyRegexes">
<xsl:with-param name="nodeText"
select="replace($nodeText,$regex[1]/find,$regex[1]/change)"/>
<xsl:with-param name="regex"
select="$regex[position()>1]"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$nodeText"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
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