Subject: [xsl] Challenge: do better than my implementation of "update map" and "print map" From: "Costello, Roger L." <costello@xxxxxxxxx> Date: Wed, 28 Aug 2013 21:52:27 +0000 |
Hi Folks, Below is a stylesheet that implements two functions on maps: 1. Update an existing map with another key/value pair 2. Print the contents of a map I'm mighty proud of these two functions. But I'm willing to believe that there exists an even better implementation. Challenge: can you create a better implementation of these two functions? /Roger ----------------------------------------------------------------------------- ---- <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:map="http://www.w3.org/2005/xpath-functions/map" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:f="function" version="3.0"> <!-- Test the two map functions --> <xsl:template match="/"> <xsl:variable name="m" select="map{'Linda' := 'Rosie'}" /> <xsl:variable name="m1" select="f:add-entry-to-map('Sally', 'Betsy', $m)" /> <xsl:variable name="m2" select="f:add-entry-to-map('Barb', 'Sue', $m1)" /> <xsl:variable name="m3" select="f:add-entry-to-map('Nadia', 'Valerie', $m2)" /> <xsl:variable name="m4" select="f:add-entry-to-map('Faye', 'Carol', $m3)" /> <xsl:sequence select="f:print-map($m4)" /> </xsl:template> <xsl:function name="f:add-entry-to-map" as="map(xs:string, item())"> <xsl:param name="key" as="xs:string" /> <xsl:param name="value" as="item()" /> <xsl:param name="m" as="map(xs:string, item())" /> <xsl:sequence select="map:new((for $i in map:keys($m) return map:entry($i, map:get($m, $i)), map:entry($key, $value)))" /> </xsl:function> <xsl:function name="f:print-map" as="xs:string*"> <xsl:param name="m" as="map(xs:string, item())" /> <xsl:for-each select="map:keys($m)"> <xsl:value-of select="." /> <xsl:text> - </xsl:text> <xsl:value-of select="map:get($m, .)" /> </xsl:for-each> </xsl:function> </xsl:stylesheet>
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