A couple of things come to mind:
<xsl:template name='get_attributes'>
<xsl:param name='string' select='zip'/>
<xsl:variable name='blip'
as='xs:string*'
select="for $h in ('bold', 'italic') return
if (contains($string, $h)) then $h
else ()"/>
<xsl:sequence select="for $h in $blip return if ($h =
'bold') then
'BLD' else
if ($h = 'italic') then 'ITA'
else ()" />
</xsl:template>
I would tend to write that as
<xsl:function name="get-attributes" as="xs:string*">
<xsl:param name="string" as="xs:string"/>
<xsl:sequence select="'BLD'[contains($string, 'bold')],
'ITA'[contains($string, 'italic')]"/>
</xsl:function>
or if it were a longer list of names then
<xsl:variable name="styles" as="element(style)">
<style name="BLD" code="bold"/>
<style name="ITA" code="italic"/>
</xsl:variable>
<xsl:function name="get-attributes" as="xs:string*">
<xsl:param name="string" as="xs:string"/>
<xsl:sequence select="$styles[contains($string, @code)]/@name"/>
</xsl:function>
Either way, this:
<xsl:variable name='blop' as='xs:string*'>
<xsl:call-template name='get_attributes'>
<!-- make sequence of strings -->
<xsl:with-param name='string'
select='"style: italic;bold"'/>
</xsl:call-template>
</xsl:variable>
becomes
<xsl:variable name="blop" as="xs:string*"
select="get-attributes('style: italic;bold')"/>
I don't think there's much you can do about the main recursive template
(name="nest").
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: Ruud Grosmann [mailto:r(_dot_)grosmann(_at_)sdu(_dot_)nl]
Sent: 02 December 2008 13:18
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] sequence of strings
hi group,
I have made a test style sheet to examine how I can use a
string value to create nested elements (xslt2, saxon9).
The string contains one or more style descriptors; the needed
elements have a different name than the corresponding styles.
My strategy is to convert the string to a sequence of
relevant substrings and then to map the sequence to the right
element name.
Below I have pasted my stylesheet. For the input document
<root/>
it creates the expected output
<?xml version="1.0" encoding="utf-8"?>
<document>
<BLD>
<ITA/>
</BLD>
</document>
My question is: this solution looks clumsy. How can I improve
it? My focus is not on the nest-template itself, but on the
get_attributes-template and the calling of the nest-template
(is the extra blop variable needed?)...
thanks in advance, Ruud
<?xml version="1.0" encoding="UTF-8"?>
<!-- maak een stack van strings -->
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
exclude-result-prefixes="xs">
<xsl:output method="xml" version="1.0" encoding="utf-8"
indent="yes"/>
<xsl:template match="/root">
<xsl:variable name='blop' as='xs:string*'>
<xsl:call-template name='get_attributes'>
<!-- make sequence of strings -->
<xsl:with-param name='string'
select='"style: italic;bold"'/>
</xsl:call-template>
</xsl:variable>
<document>
<xsl:call-template name='nest'>
<xsl:with-param name='lijst' select='$blop'/>
</xsl:call-template>
</document>
</xsl:template>
<xsl:template name='nest'>
<xsl:param name='lijst' select='zip'/>
<xsl:choose>
<xsl:when test="empty($lijst)">
<!-- end recursion -->
<xsl:sequence select="()"/>
</xsl:when>
<xsl:otherwise>
<xsl:element name="{$lijst[1]}">
<xsl:call-template name='nest'>
<xsl:with-param name='lijst'
select='$lijst[position() != 1]'/>
</xsl:call-template>
</xsl:element>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name='get_attributes'>
<xsl:param name='string' select='zip'/>
<xsl:variable name='blip'
as='xs:string*'
select="for $h in ('bold', 'italic') return
if (contains($string, $h)) then $h
else ()"/>
<xsl:sequence select="for $h in $blip return if ($h =
'bold') then
'BLD' else
if ($h = 'italic') then 'ITA'
else ()" />
</xsl:template>
--~------------------------------------------------------------------
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail:
<mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--
--~------------------------------------------------------------------
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail: <mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--