Escaping Double Quotes, Space and Allowing for an Extra Forward Slash - xslt

Question

I have XML
<?xml version="1.0" encoding="UTF-8"?>
<icestats>
<stats_connections>0</stats_connections>
<source mount="/live">
<bitrate>Some data</bitrate>
<server_description>This is what I want to return</server_description>
</source>
</icestats>
And I have XSL
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:template match="/">
<xsl:copy-of select="/icestats/source mount="/live"/server_description/node()" />
</xsl:template>
</xsl:stylesheet>
I want the output
This is what I want to return
If I remove the double quotes, space and forward slash from the source it works, but I haven't been able to successfully escape the non standard characters yet using suggested methods in other posts.
For clarity, below is the solution thanks to Lego Stormtroopr
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:template match="/">
<xsl:copy-of select="/icestats/source[#mount='/live']/server_description/node()" />
</xsl:template>
</xsl:stylesheet>

Answer 1

There are a couple of issues you will need to resolve before your processor will produce the output you're looking for.
1) Your XML input must be made well-formed. The closing tag of the source element should not include the mount attribute that is specified on the opening tag.
<source mount="/live">
...
</source>
2) The XPath on your xsl:copy-of element must be made valid. The syntax for an XPath expression is (fortunately) not like the syntax for XML elements and attributes. Specifying which source element to match is done by predicating on an attribute value, like you have done, except that you need to use square brackets:
/icestats/source[#mount="/live"]/server_description
In order to use this XPath expression in an XSLT select statement, you will need to make sure that you enclose the entire select attribute value with one type of quotes, and use the other type of quotes within the attribute value, e.g.:
<xsl:value-of select="/icestats/source[#mount='/live']/server_description" />
With This input
<?xml version="1.0" encoding="UTF-8"?>
<icestats>
<stats_connections>0</stats_connections>
<source mount="/live">
<bitrate>Some data</bitrate>
<server_description>This is what I want to return</server_description>
</source>
</icestats>
and this stylesheet
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:value-of select="/icestats/source[#mount='/live']/server_description" />
</xsl:template>
</xsl:stylesheet>
I get the following line of text from xsltproc and saxon:
This is what I want to return
The xsl:value-of element will return the string value of an element (here, that one text node). If you actually wanted the server_description element, then you can use xsl:copy-of to get the whole thing, tags and all. (You would have to update xsl:output as well.)

Answer 2

It looks like you are doing a select based on the attribute, so you just need to properly capture the attribute in the XPath. The quotes you use in the document and the XPath don't need to match, so you can switch them to single quotes ('):
<xsl:copy-of select="/icestats/source[#mount='/live']/server_description/node()" />
(Edited to correct the the missing / from the mount attribute.)
Also, your original document isn't valid XML, as XML doesn't allow attributes in the closing tag.

Answer 3

I think all you need to do is escape the quotes in the attribute string with ":
<xsl:copy-of select="/icestats/source mount="/live"/server_description/node()" />