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- From: James Clark <jjc@jclark.com>
- To: Roger Costello <costello@mitre.org>
- Date: Sat, 05 Jun 1999 19:38:23 +0700
You have to use the variables feature of the current WD. Replace the
second TR element in your attempted solution by the following:
<TR>
<xsl:variable name="cols" expr="Column"/>
<xsl:for-each select="../../Columns/Column">
<TD>
<xsl:variable name="colname" expr="@name"/>
<xsl:value-of select="$cols[@name=$colname]"/>
</TD>
</xsl:for-each>
</TR>
Roger Costello wrote:
>
> Hi Folks,
>
> Are you up for a mind-bending XSL problem? Someone presented
> me with this problem several weeks ago and I have yet to find
> a solution. It looks simple. It is deceptively challenging.
>
> An XML document stores database data as follows:
>
> <?xml version="1.0"?>
> <DynamicTable>
> <Columns>
> <Column name="col1"/>
> <Column name="col2"/>
> </Columns>
> <Rows>
> <Row>
> <Column name="col1">A</Column>
> <Column name="col3">B</Column>
> <Column name="col2">C</Column>
> </Row>
> <Row>
> <Column name="col2">S</Column>
> <Column name="col1">E</Column>
> </Row>
> <Row>
> <Column name="col5">R</Column>
> <Column name="col2">G</Column>
> <Column name="col1">Q</Column>
> </Row>
> </Rows>
> </DynamicTable>
>
> Note that the columns that we are interested in are col1 and col2.
> A <Row> element may contain data from columns not of interest.
> But, it will always contain at least data for col1 and col2.
>
> The problem is to create an XSL stylesheet that generates an
> HTML table with a table header:
>
> col1 col2
>
> and within the table it has the row data. So the HTML table
> should look like this:
>
> col1 col2
> A C
> E S
> Q G
>
> I have shown an XML document which has just two columns. However,
> the XSL stylesheet needs to be generic and capable of handling
> XML documents with any number of columns (as listed in the <Columns>
> section).
> /Roger
>
> P.S. Below is what I tried, which doesn't work.
>
> <?xml version="1.0"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl"
> result-ns="html">
> <xsl:template match="DynamicTable">
> <HTML>
> <HEAD>
> <TITLE>Dynamic Table</TITLE>
> </HEAD>
> <BODY>
> <TABLE BORDER="1" WIDTH="50%">
> <TR>
> <xsl:for-each select="Columns/Column">
> <TH><xsl:value-of select="@name"/></TH>
> </xsl:for-each>
> </TR>
> <xsl:for-each select="Rows/Row">
> <TR>
> <xsl:for-each select="../../Columns/Column">
> <TD><xsl:value-of
>
> select="../../Rows/Row/Column[@name='{@name}']"/></TD>
> </xsl:for-each>
> </TR>
> </xsl:for-each>
> </TABLE>
> </BODY>
> </HTML>
> </xsl:template>
> </xsl:stylesheet>
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