Dynamic/Generic XSLT for Verical and Horizontal Layouts - xslt

Question

I have the following XSLT. It works great for horizontal layouts. However when there are too many columns I need it to flip to a vertical layout. Ultimately being able to configure or specify the number of columns in a variable would be best. Can anyone kindly help?
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="html" indent="yes"/>
<xsl:template match="/*">
<table>
<thead>
<tr>
<xsl:apply-templates select="*[1]/*" mode="th"/>
</tr>
</thead>
<tbody>
<xsl:apply-templates select="*"/>
</tbody>
</table>
</xsl:template>
<xsl:template match="/*/*/*" mode="th">
<th>
<xsl:value-of select="name()"/>
</th>
</xsl:template>
<xsl:template match="/*/*">
<tr>
<xsl:apply-templates select="*"/>
</tr>
</xsl:template>
<xsl:template match="/*/*/*">
<td>
<xsl:value-of select="."/>
</td>
</xsl:template>
</xsl:stylesheet>

Answer 1

I am not sure I have understood the question correctly but if you just want to output several tables, each having $cols-per-table columns, then I think the adaption of the presented code to
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:param name="cols-per-table" select="10"/>
<xsl:output method="html" indent="yes" doctype-system="about:legacy-doctype"/>
<xsl:template match="/">
<xsl:apply-templates select="*/*[1]/*[position() mod $cols-per-table = 1]" mode="page"/>
</xsl:template>
<xsl:template match="*" mode="page">
<xsl:param name="page-no" select="position()"/>
<table border="1">
<thead>
<xsl:apply-templates select=". | following-sibling::*[position() < $cols-per-table]" mode="th"/>
</thead>
<tbody>
<xsl:apply-templates select="/*/*">
<xsl:with-param name="page-no" select="$page-no"/>
</xsl:apply-templates>
</tbody>
</table>
</xsl:template>
<xsl:template match="/*/*/*" mode="th">
<th>
<xsl:value-of select="name()"/>
</th>
</xsl:template>
<xsl:template match="/*/*">
<xsl:param name="page-no"/>
<xsl:variable name="first-col" select="1 + $cols-per-table * ($page-no - 1)"/>
<xsl:variable name="last-col" select="$first-col + $cols-per-table - 1"/>
<tr>
<xsl:apply-templates select="*[position() >= $first-col and position() <= $last-col]"/>
</tr>
</xsl:template>
<xsl:template match="/*/*/*">
<td>
<xsl:value-of select="."/>
</td>
</xsl:template>
</xsl:stylesheet>
https://xsltfiddle.liberty-development.net/jyRYYjr/1
I have used XSLT 1.0 as the original code used that version although with XSLT 2/3 and positional grouping using for-each-group and/or a key computing the "pag" a "column" element belongs to might be more efficient:
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
exclude-result-prefixes="#all"
version="3.0">
<xsl:param name="cols-per-table" as="xs:integer" select="10"/>
<xsl:output method="html" indent="yes" html-version="5"/>
<xsl:key name="page-no" match="/*/*/*">
<xsl:variable name="index" as="xs:integer">
<xsl:number/>
</xsl:variable>
<xsl:sequence select="($index - 1) idiv $cols-per-table + 1"/>
</xsl:key>
<xsl:template match="/">
<xsl:for-each-group select="*/*[1]/*" group-adjacent="(position() - 1) idiv $cols-per-table">
<xsl:apply-templates select="." mode="page">
<xsl:with-param name="page-no" select="position()" tunnel="yes"/>
</xsl:apply-templates>
</xsl:for-each-group>
</xsl:template>
<xsl:template match="*" mode="page">
<xsl:param name="page-no" tunnel="yes"/>
<table border="1">
<thead>
<xsl:apply-templates select="current-group()" mode="th"/>
</thead>
<tbody>
<xsl:apply-templates select="/*/*"/>
</tbody>
</table>
</xsl:template>
<xsl:template match="/*/*/*" mode="th">
<th>
<xsl:value-of select="name()"/>
</th>
</xsl:template>
<xsl:template match="/*/*">
<xsl:param name="page-no" tunnel="yes"/>
<tr>
<xsl:apply-templates select="key('page-no', $page-no, .)"/>
</tr>
</xsl:template>
<xsl:template match="/*/*/*">
<td>
<xsl:value-of select="."/>
</td>
</xsl:template>
</xsl:stylesheet>
https://xsltfiddle.liberty-development.net/jyRYYjr/4
At https://xsltfiddle.liberty-development.net/jyRYYjr/5 I have implemented a pure XSLT 3 approach solely using for-each-group and storing the "pages" and "columns" in a map.