How to exclude some elements from XSL output indent?

Question

I need to transform an xml doc and I want the output to be formatted so I use <xsl:output indent="yes" /> . But I want a specific element to not indent. For example, my xml (after any transformation, like removing elements etc) is unformatted like this:

<root><code><run><formula>xyz</formula></code></root>

with <xsl:output indent="yes" /> I getting output like this:

<root>
<code>
<run>
<formula>xyz</formula>
</run>
</code>
</root>

I am looking for output like this:

<root>
<code>
<run><formula>xyz</formula></run>
</code>
</root>

basically I don't want <run> (and elements inside it) to format.

Can this be done with XSL? Or I need to parse the file, after XSL transformation, to remove \\n after <run> and before </run> ?

(note: my xml is big with hundreds of elements. The above is just an example) (note 2: I am using java. Thus the java tag)

Answer 1

XSLT 3.0 allows you to say <xsl:output indent="yes" suppress-indentation="run"/> . For this you will need to switch to an XSLT 3.0 processor, which in the Java world means Saxon.