XSLT copy parent element with attributes and change child elements - xslt

Question

This piece of HTML table
<tr>
<td>
<p>only one cell without break</p>
</td>
<td colspan="3">
<p>text 1</p>
<p>text 2</p>
<p>text 3</p>
</td>
<td colspan="3">
<list>
<list-item>
<p>list item 1</p>
</list-item>
<list-item>
<p>list item 2</p>
</list-item>
<list-item>
<p>list item 3</p>
</list-item>
</list>
</td>
</tr>
has to be translated into:
<tr>
<td>
only one cell without break
</td>
<td colspan="3">
text 1<break/>
text 2<break/>
text 3
</td>
<td colspan="3">
<list>
<list-item>
<p>list item 1</p>
</list-item>
<list-item>
<p>list item 2</p>
</list-item>
<list-item>
<p>list item 3</p>
</list-item>
</list>
</td>
</tr>
I'm using this piece of XSLT code:
<xsl:template match="td">
<td>
<xsl:for-each select="p">
<xsl:apply-templates/>
<xsl:if test="position() != last()">
<break/>
</xsl:if>
</xsl:for-each>
<xsl:apply-templates select="* except p"/>
</td>
</xsl:template>
I have to select <td> as parent node so I can change all <p> tags within one cell with <break/> tag for all elements except the last one, where there are more than one <p> inside a cell. Where there's only one <p> inside a cell, the <p> tag has to be removed as well, but <break/> doesn't need to be added. All other tags (i.e. list) stay intact. It works, but I am losing "colspan" attribute with this code.
For obvious reasons (manually setting up <td>) the attribute colspan isn't copied from parent.
Is it possible somehow to "fix" the code and copy parent <td> element with all attributes to output table somehow?

Answer 1

The only transformation represented by the samples is
<xsl:template match="tr/td/p">
<x>
<xsl:apply-templates select="#* | node()"/>
</x>
</xsl:template>
the rest can be handled by the identity transformation (e.g. <xsl:mode on-no-match="shallow-copy"/> in XSLT 3 or a template spelling that out in XSLT 2 or 1).
After the edit of the question the task is completely different but still in my view to be solved with push style apply-templates and template matching, the two transformations you want are expressed as two templates:
<xsl:template match="tr/td/p">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="tr/td/p[not(position() = last())]">
<xsl:apply-templates/>
<break/>
</xsl:template>
the rest will be handled by the identity transformation.
https://xsltfiddle.liberty-development.net/pNmCztv