Subject: Re: [xsl] Keeping a map in my XSL From: andrew welch <andrew.j.welch@xxxxxxxxx> Date: Tue, 13 Sep 2005 17:01:43 +0100 |
On 9/13/05, Kevin L. Cobb <kevin.cobb@xxxxxxxxxxxx> wrote: > I want to be able to set a variable that is retreived from my XML I am > parsing to a mapped values. For example, lets say I have an XML map that > looks like this: > > <map> > <key>12345</key><value>abcde</key> > <key>78910</key><value>lmnop</value> > </map> > > My source XML has the value '12345' in a certain field. I retreive the > field as usual in XSL and then I want to get the mapped value of this > field. The map above is "included" in my XSL. Is there a best way to do > this in XSL? yes, first restructure your map as associating a key and value by position is a bad idea, much better to use attributes: <map> <key name="12345" value="abcde"/> <key name="78910" value="lmnop"/> </map> then define a key to return a value for a given name: <xsl:key name="mappings" match="key" use="@name"/> then in xslt 1.0 use: <xsl:variable name="lookup" select="the_name_you_want_lookup"/> <xsl:for-each select="$map"> <xsl:value-of select="key('mappings', $lookup)/@value"/> </xsl:for-each> in 2.0 you don't have the hassle of switching the context node because key() can take it as the third argument: <xsl:value-of select="key('mappings', the_name_you_want_to_lookup, $mappings)/@value"/> cheers andrew
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