Re: [xsl] Recursive counting

[Steve <subsume@xxxxxxxxx>]

Grrrrrrrr should have mentioned the <people> tree is actually a
variable, so the simplicity of using a prefs key is out the window....

Thanks so much for your refined-twice solution, Ken.

-Steve

<out {@type} {count (of things belonging to @type) }>

On 7/18/06, G. Ken Holman <gkholman@xxxxxxxxxxxxxxxxxxxx> wrote:
> One more edit ... no need for the current()
> function ... that was left over from the variable version I posted.
>
> . . . . . . . . Ken
>
> T:\ftemp>type steve.xml
> <?xml version="1.0" encoding="US-ASCII"?>
> <data>
>    <options>
>      <o type="A">who</o>
>      <o type="A">what</o>
>      <o type="A">when</o>
>      <o type="B">how</o>
>      <o type="B">nexus</o>
>      <o type="B">triumph</o>
>      <o type="C">alligator</o>
>      <o type="C">spurn</o>
>    </options>
>    <people>
>      <person pref="who" />
>      <person pref="nexus" />
>      <person pref="how" />
>      <person pref="alligator" />
>      <person pref="spurn" />
>      <person pref="triumph" />
>      .... etc ....
>    </people>
> </data>
>
> T:\ftemp>type steve.xsl
> <?xml version="1.0" encoding="US-ASCII"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>                  version="1.0">
>
> <xsl:output indent="yes"/>
>
> <xsl:key name="options" match="o" use="@type"/>
> <xsl:key name="prefs" match="person" use="@pref"/>
>
> <xsl:template match="/data">
>    <output>
>      <xsl:for-each select="options/o[generate-id(.)=
generate-id(key('options',@type)[1])]">
>        <xsl:sort select="@type"/>
>        <out type="{@type}"
count="{count(key('prefs',key('options',@type)))}"/>
>      </xsl:for-each>
>    </output>
> </xsl:template>
>
> </xsl:stylesheet>
> T:\ftemp>xslt steve.xml steve.xsl con
> <?xml version="1.0" encoding="utf-8"?>
> <output>
>     <out type="A" count="1"/>
>     <out type="B" count="3"/>
>     <out type="C" count="2"/>
> </output>
> T:\ftemp>
>
> --
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