RE: [xsl] XSLT2, collection(), and xsl:key

["Michael Kay" <mike@xxxxxxxxxxxx>]

OK, I misunderstood. I thought that's what you meant by doing it manually,
and that that wasn't what you wanted to do.

To make it data-driven like this, you get rid of the outer
xsl:for-each-group and replace it with an <xsl:for-each select="table">, and
then you do something like

<xsl:variable name="table" select="."/>
<xsl:variable name="pop"
select="collection('...')//*[name()=$table/@element[@*[name()=$table/@att]]]
"/>

and then 

<xsl:variable name="types"
select="distinct-values($pop/@*[name()=$table/@att)"/>

Michael Kay
http://www.saxonica.com/

> -----Original Message-----
> From: James Cummings [mailto:cummings.james@xxxxxxxxx] 
> Sent: 01 February 2008 18:07
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [xsl] XSLT2, collection(), and xsl:key
> 
> Hi again,
> 
> I must be missing something (I usually am), if I'm reading 
> this (and Andrew's grouping in a variable version), they both 
> apply to all elements, and here all elements with only a 
> @type.  Part of my problem is that I definitely *don't* want 
> to do all elements, and in some cases more than one attribute 
> on some elements.  So I really need to feed it a list of 
> element/@attrib rather than just do everything matching a pattern.
> 
> I mean I could build a list in the xslt in a variable something like:
> <xsl:variable name="tables">
> <table element="seg" att="type"/>
> <table element="seg" att="sub-type"/>
> <table element="other" att="type"/>
> <table element="thing" att="name"/>
> <!-- etc -->
> </xsl:variable>
> 
> And then try the grouping selecting each $tables/table ?  
> Would that work?
> 
> -James
> 
> On Feb 1, 2008 5:45 PM, Michael Kay <mike@xxxxxxxxxxxx> wrote:
> > Looks to me something like this:
> >
> > <xsl:variable name="pop" select="collection('...')//*[@type]"/>
> >
> > <xsl:for-each-group select="$pop" group-by="node-name(.)">
> >   <h1><xsl:value-of select="current-grouping-key()"/></h1>
> >   <table>
> >     <tr>
> >       <td>document</td>
> >       <xsl:variable name="types"
> > select="distinct-values(current-group()/@type)"/>
> >       <xsl:for-each select="$types">
> >         <td><xsl:value-of select="."/></td>
> >       </xsl:for-each>
> >     </tr>
> >     <xsl:for-each-group select="current-group()"
> > group-by="ancestor::p/@xml:id">
> >     <tr>
> >       <td><xsl:value-of select="current-grouping-key()"/></td>
> >       <xsl:for-each select="$types">
> >         <td><xsl:value-of
> > select="count(current-group()[@type=current()])"/></td>
> >       </xsl:for-each>
> >     </tr>
> >   </table>
> > </xsl:for-each-group>
> >
> > Michael Kay
> > http://www.saxonica.com/
> >
> >
> > > -----Original Message-----
> > > From: James Cummings [mailto:cummings.james@xxxxxxxxx]
> > > Sent: 01 February 2008 17:23
> > > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > > Subject: [xsl] XSLT2, collection(), and xsl:key
> > >
> > > Hiya,
> > >
> > > I'm using the collection() function and Saxon to produce some 
> > > statistics about how many of which elements of which type in a 
> > > particular set of documents.
> > >
> > > Let's say that document one has something like:
> > >
> > > <p xml:id="doc1" type="hypothetical"> There is some text 
> with <seg 
> > > type="foo">some foo</seg> and occasionally <seg 
> > > type="blort">blort</seg> and <other 
> type="wibble">wibble</other></p>
> > >
> > >
> > > and document two (and up to some really large number) is like:
> > >
> > > <p xml:id="doc2">
> > > There is another doc with <seg type="foo">some foo</seg> and 
> > > occasionally <seg type="notBlort">notBlort</seg> and <other 
> > > type="fluffy">fluffy other</other> and <some
> > >   name="thing">someThing</some></p>
> > >
> > > What I want to produce are tables of counts of specific 
> elements, by 
> > > document and type. So something like the following (though using 
> > > table/row/cell xml markup):
> > >
> > >
> > > table: other
> > > document | fluffy | wibble | stuff
> > > doc1 | 0 | 1 | 0
> > > doc2 | 1 | 0 | 0
> > > doc3 | 20 | 12 | 54
> > >
> > > table: seg
> > > document | blort | foo | notBlort
> > > doc1 | 1 | 1 | 0
> > > doc2 | 0 | 1| 1
> > > doc3 | 23 | 44 | 58
> > >
> > > table: some
> > > document | thing | else | now
> > > doc1 | 0 | 0 | 0
> > > doc2 | 1 | 0 | 0
> > > doc3 | 12 | 5 | 24
> > >
> > > I can build this manually (and for one element I have done
> > > so) by doing:
> > >
> > > <xsl:variable name="docs"
> > > select="collection('../../working/xml/docs.xml')"/>
> > > <xsl:template name="main">
> > > <table><head>seg by type</head>
> > > <row rend="label">
> > > <cell>document</cell>
> > > <cell>blort</cell>
> > > <cell>foo</cell>
> > > <cell>notBlort</cell>
> > > </row>
> > > <xsl:for-each select="$docs//p"> <!-- let's pretend p is the root 
> > > element --> <row> <xsl:variable name="doc"
> > > select="@xml:id"/> <cell><xsl:value-of select="$doc"/></cell> 
> > > <cell><xsl:value-of select="count(.//seg[@type='blort'])</cell>
> > > <cell><xsl:value-of select="count(.//seg[@type='foo'])</cell>
> > > <cell><xsl:value-of select="count(.//seg[@type='notBlort'])</cell>
> > > </row>
> > > </xsl:for-each>
> > > </table>
> > > </xsl:template>
> > >
> > > But that isn't really the point now is it?  I tried to 
> use <xsl:key> 
> > > but I ran into the problem of it not liking the
> > > collection() function as part of the match.
> > >
> > > What I want to do is be able to say for-each doc, build 
> me a table 
> > > of all the (let's pretend unknown) values of this 
> attribute on this 
> > > element.  So something like:
> > >
> > > <xsl:for-each select="$docs//p">
> > > <xsl:value-of select="my:function(other/@type, seg/@type, 
> > > thing/@name, new/@type)"/> </xsl:for-each>
> > >
> > > and without knowing the values of @type in advance it 
> makes a table 
> > > like above of them (using distinct-values()?) and counting their 
> > > occurrences.
> > >
> > > This is a case where I know it must be possible, and I 
> could just go 
> > > and do it manually, (in reality there are about 10 
> elements with a 
> > > number of attributes, with around 20 values each), but it 
> just seems
> > > *wrong* to do it that way. ;-)
> > >
> > > Suggestions?
> > >
> > > Thanks,
> > >
> > > -James