tags|nodes with conditional content

Thanks to some great help for my first ever post on this formum [
Fetch a node based on a value of another node. ] I am now recursively traversing through my XML data where nodes are related to each other.

Example XML
<gedcom> <INDI ID="@I001@"> ... <FAMC>@F001@</FAMC> </INDI> <INDI ID="@I002@"> ... <FAMC>@F002@</FAMC> </INDI> <INDI ID="@I003@"> ... <FAMC>@F003@</FAMC> </INDI> ... <FAM ID="@F001@</FAM> ... <HUSB>@I002@</HUSB> <WIFE>@I003@</WIFE> </FAM> <FAM ID="@F002@</FAM> ... <HUSB>@I004@</HUSB> <WIFE>@I005@</WIFE> </FAM> <FAM ID="@F003@</FAM> ... <HUSB>@I006@</HUSB> <WIFE>@I007@</WIFE> </FAM> ... </gedcom>

Here is my current XSLT code <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output indent="yes" method="html"/> <xsl:template match="/"> <html> <head> <title>Pedigree Chart</title> </head> <body> <table> <tr> <xsl:apply-templates select="/gedcom/INDI[@ID='@I001@']"> <xsl:with-param name="generation">0</xsl:with-param> </xsl:apply-templates> </tr> </table> </body> </html> </xsl:template> <xsl:template match="INDI"> <xsl:param name="generation"/> <td> <xsl:value-of select="$generation"/> <xsl:value-of select="./NAME/text()"/><br/> </td> <xsl:apply-templates select="FAMC"> <xsl:with-param name="generation"> <xsl:value-of select="$generation"/> </xsl:with-param> </xsl:apply-templates> </xsl:template> <xsl:template match="FAMC"> <xsl:param name="generation"/> <xsl:if test="$generation < 4"> <xsl:variable name="data" select="."/> <xsl:apply-templates select="../../FAM[@ID=$data]"> <xsl:with-param name="generation"> <xsl:value-of select="$generation + 1"/> </xsl:with-param> </xsl:apply-templates> </xsl:if> </xsl:template> <xsl:template match="FAM"> <xsl:param name="generation"/> <xsl:apply-templates select="HUSB|WIFE"> <xsl:with-param name="generation"> <xsl:value-of select="$generation"/> </xsl:with-param> </xsl:apply-templates> </xsl:template> <xsl:template match="HUSB|WIFE"> <xsl:param name="generation"/> <xsl:variable name="data" select="."/> <xsl:apply-templates select="../../INDI[@ID=$data]"> <xsl:with-param name="generation"> <xsl:value-of select="$generation"/> </xsl:with-param> </xsl:apply-templates> </xsl:template> </xsl:stylesheet>

This produces all the desired xml nodes in the output, but they are all in a single table row. What I desire is a table row once each 5th generation is reached ($generations = 4).

It should look something like this:

<table>
  <tr>
    <td rowspan="16">generation 0</td>
    <td rowspan="8">generation 1</td>
    <td rowspan="4">generation 2</td>
    <td rowspan="2">generation 3</td>
    <td rowspan="1">generation 4</td>
  </tr>
  <tr>
    <td rowspan="1">generation 4</td>
  </tr>
  <tr>
    <td rowspan="2">generation 3</td>
    <td rowspan="1">generation 4</td>
  </tr>
  <tr>
    <td rowspan="1">generation 4</td>
  </tr>
  <tr>
    <td rowspan="4">generation 2</td>
    <td rowspan="2">generation 3</td>
    <td rowspan="1">generation 4</td>
  </tr>
  <tr>
    <td rowspan="1">generation 4</td>
  </tr>
  <tr>
    <td rowspan="2">generation 3</td>
    <td rowspan="1">generation 4</td>
  </tr>
  <tr>
    <td rowspan="1">generation 4</td>
  </tr>
  ...
</table>

I have XSLT logic to properly calculate the rowspan attributes of each cell and to substitute content of the nodes with actual data from the XML document. But I have no idea how to properly wrap the correct number of cells in table rows.

I tried a trick I often use in procedural programming, but the XSLT parser did not like it as it does not properly nest tags.

<xsl:template match="INDI">
  <xsl:param name="generation"/>

    <td>
      <xsl:value-of select="$generation"/>
      <xsl:value-of select="./NAME/text()"/><br/>
    </td>
    <xsl:apply-templates select="FAMC">
      <xsl:with-param name="generation">
        <xsl:value-of select="$generation"/>
      </xsl:with-param>
    </xsl:apply-templates>

  <xsl:if test="$generation = 4">
    <!-- reached the end of a row, close the current row tag and open a new row -->
    </tr>
    <tr>
  </xsl:if>
</xsl:template>

Can anybody guide me to the XSLT method to do this type of logic.

TIA
Ian

iskinner

Newbie Poster

6 posts since Feb 2011

Reputation Points: 10

Solved Threads: 0

tags|nodes with conditional content

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