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Re: Grouping lists from flat to nested

Subject: Re: Grouping lists from flat to nested
From: Stefanie Haupt <st.haupt@xxxxxxxxx>
Date: Mon, 31 Jan 2011 16:47:07 +0100
Re:  Grouping lists from flat to nested
Dear Martin,

this looks great, thank you!  - the only downside is that the input to
this grouping attempt is a variable containing the input. So I fear I
can't use <template match="text"> here. I think I would need a new
transformation document in the pipeline with this attempt - which I
would love to avoid. - Or am I mistaken?

Kind regards,
Stefanie

On Mon, Jan 31, 2011 at 3:05 PM, Martin Honnen <Martin.Honnen@xxxxxx> wrote:

>
> Based on your explanation and the required result I think you should rather
> use group-adjacent than group-starting-with.
> Here is an example stylesheet:
>
> <xsl:stylesheet
> B xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> B xmlns:xs="http://www.w3.org/2001/XMLSchema"
> B xmlns:mf="http://example.com/mf"
> B version="2.0"
> B exclude-result-prefixes="xs mf">
>
> B <xsl:strip-space elements="*"/>
> B <xsl:output indent="yes"/>
>
> B <xsl:function name="mf:group" as="node()*">
> B  B <xsl:param name="nodes" as="node()*"/>
> B  B <xsl:param name="level" as="xs:integer"/>
> B  B <xsl:if test="$nodes">
> B  B  B <list type="ul">
> B  B  B  B <xsl:for-each-group select="$nodes"
> group-adjacent="boolean(self::*[@level = $level])">
> B  B  B  B  B <xsl:choose>
> B  B  B  B  B  B <xsl:when test="current-grouping-key()">
> B  B  B  B  B  B  B <xsl:apply-templates select="current-group()"/>
> B  B  B  B  B  B </xsl:when>
> B  B  B  B  B  B <xsl:otherwise>
> B  B  B  B  B  B  B <xsl:sequence select="mf:group(current-group(), $level +
1)"/>
> B  B  B  B  B  B </xsl:otherwise>
> B  B  B  B  B </xsl:choose>
> B  B  B  B </xsl:for-each-group>
> B  B  B </list>
> B  B </xsl:if>
> B </xsl:function>
>
> B <xsl:template match="@* | node()">
> B  B <xsl:copy>
> B  B  B <xsl:apply-templates select="@*, node()"/>
> B  B </xsl:copy>
> B </xsl:template>
>
> B <xsl:template match="item[@level]">
> B  B <item>
> B  B  B <xsl:apply-templates/>
> B  B </item>
> B </xsl:template>
>
> B <xsl:template match="test">
> B  B <xsl:copy>
> B  B  B <xsl:for-each-group select="*"
group-adjacent="boolean(self::item)">
> B  B  B  B <xsl:choose>
> B  B  B  B  B <xsl:when test="current-grouping-key()">
> B  B  B  B  B  B <xsl:sequence select="mf:group(current-group(), 0)"/>
> B  B  B  B  B </xsl:when>
> B  B  B  B  B <xsl:otherwise>
> B  B  B  B  B  B <xsl:apply-templates select="current-group()"/>
> B  B  B  B  B </xsl:otherwise>
> B  B  B  B </xsl:choose>
> B  B  B </xsl:for-each-group>
> B  B </xsl:copy>
> B </xsl:template>
>
> </xsl:stylesheet>
>
> When applied to the input
>
> <test>
> <p level="0">Der als Filmregisseur B <hi rend="bo">Alan Smithee</hi>
> ist ein.. </p>
> <p level="0">Das Pseudonym.. .</p>
> <p level="0">Der Regisseur...</p>
> <head2 level="0">Wissenswertes</head2>
> <item level="0" type="ul">Alternative Schreibweisen..</item>
> <item level="0" type="ul">Eine alternative Theorie...</item>
> <item level="0" type="ul">Zu den ... </item>
> <item level="1" type="ul">Don B </item>
> <item level="1" type="ul">David Lynch </item>
> <item level="1" type="ul">Chris Christensen </item>
> <item level="1" type="ul">Stuart Rosenberg</item>
> <item level="1" type="ul">Richard C. Sarafian</item>
> <item level="1" type="ul">Dennis Hopper B </item>
> <item level="2" type="ul"> level 3 ulitem</item>
> <item level="1" type="ul">Arthur Hiller (fC<r ), </item>
> <item level="1" type="ul">Rick Rosenthal (Birds II) und </item>
> <item level="1" type="ul">Kevin Yagher </item>
> <item level="0" type="ul">Zu den Drehbuchautoren </item>
> <item level="1" type="ul">Sam Raimi und Ivan Raimi </item>
> <head2 level="0">Weblinks</head2>
> </test>
>
>
> Saxon 9.3 outputs
>
> <test>
> B  <p level="0">Der als Filmregisseur B <hi rend="bo">Alan Smithee</hi>
> ist ein.. </p>
> B  <p level="0">Das Pseudonym.. .</p>
> B  <p level="0">Der Regisseur...</p>
> B  <head2 level="0">Wissenswertes</head2>
> B  <list type="ul">
> B  B  B <item>Alternative Schreibweisen..</item>
> B  B  B <item>Eine alternative Theorie...</item>
> B  B  B <item>Zu den ... </item>
> B  B  B <list type="ul">
> B  B  B  B  <item>Don B </item>
> B  B  B  B  <item>David Lynch </item>
> B  B  B  B  <item>Chris Christensen </item>
> B  B  B  B  <item>Stuart Rosenberg</item>
> B  B  B  B  <item>Richard C. Sarafian</item>
> B  B  B  B  <item>Dennis Hopper B </item>
> B  B  B  B  <list type="ul">
> B  B  B  B  B  B <item> level 3 ulitem</item>
> B  B  B  B  </list>
> B  B  B  B  <item>Arthur Hiller (fbbr ), </item>
> B  B  B  B  <item>Rick Rosenthal (Birds II) und </item>
> B  B  B  B  <item>Kevin Yagher </item>
> B  B  B </list>
> B  B  B <item>Zu den Drehbuchautoren </item>
> B  B  B <list type="ul">
> B  B  B  B  <item>Sam Raimi und Ivan Raimi </item>
> B  B  B </list>
> B  </list>
> B  <head2 level="0">Weblinks</head2>
> </test>
>
>
>
>
> --
>
> B  B  B  B Martin Honnen
> B  B  B  B http://msmvps.com/blogs/martin_honnen/
>
>



--
Stefanie Haupt, M.A.

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