Re: [xsl] Hierarchy to Flat Structure

[Geert Bormans <geert@xxxxxxxxxxxxxxxxxxx>]

Hi Rick,

As I said, I would use sibling recursion.

Start at the first Category element and walk the following-sibling 
axis, like this

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>

    <xsl:output indent="yes" />

    <xsl:template match="Cases/Cases">
        <Cases>
            <xsl:apply-templates select="Category[1]" />
        </Cases>
    </xsl:template>

    <xsl:template match="Category">
        <Case>
            <xsl:copy-of select="." />
            <xsl:apply-templates 
select="following-sibling::*[1][not(self::Category)]" mode="in-case-siblings"/>
        </Case>
        <xsl:apply-templates select="following-sibling::Category[1]"/>
    </xsl:template>

    <xsl:template match="*" mode="in-case-siblings">
        <xsl:copy-of select="." />
        <xsl:apply-templates 
select="following-sibling::*[1][not(self::Category)]" mode="in-case-siblings"/>
    </xsl:template>

    <xsl:template match="Category" mode="in-case-siblings"/>

 </xsl:stylesheet>

Cheers

Geert





At 02:57 17/03/2013, you wrote:
> I am trying to add hierarchy to a flat structure and have it basically
> working. But I am wondering if there is a way to generalize the children
> that I am adding. Hopefully an example will help illustrate what I am doing.
>
> Input:
>
> <Cases>
>         <Cases>
>                 <Category>Category One</Category>
>                 <CaseTitle>Category One Title</CaseTitle>
>                 <Institution>Category One Institution</Institution >
>                 <Author>Category One Author</Author>
>                 <History>Category One History</History>
>                 <Category>Category Two</Category>
>                 <CaseTitle>Category Two Title</CaseTitle>
>                 <Institution>Category Two Institution</Institution >
>                 <Author>Category Two Author</Author>
>                 <History>Category Two History</History>
>         </Cases>
> </Cases>
>
> Output:
>
> <Cases>
>         <Case>
>                 <Category>Category One</Category>
>                 <CaseTitle>Category One Title</CaseTitle>
>                 <Institution>Category One Institution</Institution >
>         </Case>
>         <Case>
>                 <Category>Category Two</Category>
>                 <CaseTitle>Category Two Title</CaseTitle>
>                 <Institution>Category Two Institution</Institution >
>         </Case>
> </Cases>
>
> Stylesheet:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
>     xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
>
>     <xsl:output indent="yes" />
>
>     <xsl:template match="Cases/Cases">
>     <Cases>
>         <xsl:apply-templates select="Category" />
>     </Cases>
>     </xsl:template>
>
>     <xsl:template match="Category">
>         <Case>
>             <Category><xsl:value-of select="." /></Category>
>             <xsl:apply-templates
>                 select="following-sibling::CaseTitle
>                 [generate-id(preceding-sibling::Category[1])
>                 = generate-id(current())]" />
>             <xsl:apply-templates
>                 select="following-sibling::Institution
>                 [generate-id(preceding-sibling::Category[1])
>                 = generate-id(current())]" />
>         </Case>
>     </xsl:template>
>
>     <xsl:template match="CaseTitle">
>         <xsl:copy-of select="." />
>     </xsl:template>
>
>     <xsl:template match="Institution">
>         <xsl:copy-of select="." />
>     </xsl:template>
>
> </xsl:stylesheet>
>
> I have template rules for each of the following siblings of Category and I
> can add more for Author, etc., but it seems like there should be a way to
> generalize this for any number of elements. Any help would be appreciated.
>
> Rick