search and replace an element, using xslt 3, the replacement phrase is the same - xslt-3.0

Question

while i have as input an xml file like:
<?xml version="1.0"?>
<catalog>
<book id="bk101">
<author>Gambardella, Matthew</author>
<title>XML Developer's Guide</title>
<genre>Computer</genre>
<price>44.95</price>
<publish_date>2000-10-01</publish_date>
<description>An in-depth look at creating applications
with XML.</description>
</book>
<book id="bk102">
<author>Ralls, Kim</author>
<title>Midnight Rain</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-12-16</publish_date>
<description>A former architect battles corporate zombies,
an evil sorceress, and her own childhood to become queen
of the world.</description>
</book>
<book id="bk103">
<author>Corets, Eva</author>
<title>Maeve Ascendant</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-11-17</publish_date>
<description>After the collapse of a nanotechnology
society in England, the young survivors lay the
foundation for a new society.</description>
</book>
</catalog>
and i try to find the best way to have the following info in a file, or in the xsl itself:
value to search for:
An in-depth look at creating applications with XML.
add location:
on the self
value to search for:
A former architect battles corporate zombies, an evil sorceress, and her own childhood to become queen of the world.
add location:
on the self
so if i made a comma separated input file, it would look like:
"An in-depth look at creating applications with XML.","on the self"
"A former architect battles corporate zombies, an evil sorceress, and her own childhood to become queen of the world.","on the self"
i have tried with xslt 2, but i keep getting errors like a sequence of more than one item is not allowed as the value of variable $search_phrase...
Desired output:
<?xml version="1.0"?>
<catalog>
<book id="bk101">
<author>Gambardella, Matthew</author>
<title>XML Developer's Guide</title>
<genre>Computer</genre>
<price>44.95</price>
<publish_date>2000-10-01</publish_date>
<description>to be checked</description>
<location>on the self</location>
</book>
<book id="bk102">
<author>Ralls, Kim</author>
<title>Midnight Rain</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-12-16</publish_date>
<description>to be checked</description>
<location>on the self</location>
</book>
<book id="bk103">
<author>Corets, Eva</author>
<title>Maeve Ascendant</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-11-17</publish_date>
<description>After the collapse of a nanotechnology
society in England, the young survivors lay the
foundation for a new society.</description>
</book>
</catalog>
Could someone give me an example with xslt-3.0 where probably i could replace the above phrases, and add the needed elements as well, wherever there is a match?
What i need to do:
in the full xml file, there are many records that can have the same description. I also need to make an exact match on the description: The phrase
"An in-depth look at creating applications with XML, authored by ..."
should not be matched. And in my case, i have also a description where the difference is only the case for instance, "an in-depth look at creating applications with XML." should not be also matched. Since in my code i use lowercase, this may also be the problem, but not sure... Whenever there is a match, the location specified along the search term, must be added into the location element, which currently does not exist in any record in the xml.

Answer 1

Here is a suggestion on how to compare the description elements to a sequence of strings passed in as a parameter (but you could of well read it in from a file):
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
exclude-result-prefixes="xs"
expand-text="yes"
version="3.0">
<xsl:param name="new" as="xs:string" select='"on the self"'/>
<xsl:param name="replace" as="xs:string" select="'to be checked'"/>
<xsl:param name="search" as="xs:string*"
select='"An in-depth look at creating applications with XML.",
"A former architect battles corporate zombies, an evil sorceress, and her own childhood to become queen of the world."'/>
<xsl:mode on-no-match="shallow-copy"/>
<xsl:output indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="description[. = $search]">
<xsl:copy>{$replace}</xsl:copy>
<location>{$new}</location>
</xsl:template>
</xsl:stylesheet>
Works fine at http://xsltfiddle.liberty-development.net/eiQZDbk, but only after editing the sample to have all description data on one line.
If that is not the case then changing the template to
<xsl:template match="description[normalize-space() = $search]">
<xsl:copy>{$replace}</xsl:copy>
<location>{$new}</location>
</xsl:template>
should help: http://xsltfiddle.liberty-development.net/eiQZDbk/1
If you have several terms to relate to each other than some XML format seems be more appropriate to structure the data, so in
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
exclude-result-prefixes="xs"
expand-text="yes"
version="3.0">
<xsl:param name="data-url" as="xs:string" select="'data.xml'"/>
<!-- if you want to load from a file use xsl:param name="replacement-doc" select="doc($data-url)" -->
<xsl:param name="replacement-doc">
<root>
<search>
<term>An in-depth look at creating applications with XML.</term>
<replacement>to be checked</replacement>
<new>on the self</new>
</search>
<search>
<term>A former architect battles corporate zombies, an evil sorceress, and her own childhood to become queen of the world.</term>
<replacement>whatelse</replacement>
<new>something</new>
</search>
</root>
</xsl:param>
<xsl:key name="search" match="search" use="term"/>
<xsl:mode on-no-match="shallow-copy"/>
<xsl:output indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="description[key('search', normalize-space(), $replacement-doc)]">
<xsl:variable name="search" select="key('search', normalize-space(), $replacement-doc)"/>
<xsl:copy>{$search/replacement}</xsl:copy>
<location>{$search/new}</location>
</xsl:template>
</xsl:stylesheet>
I have made some suggestion to do that and have adapted the template. Online sample is at http://xsltfiddle.liberty-development.net/eiQZDbk/2. As indicated there in a comment you can adapt that approach to load the data from a separate file instead of keeping it inline in the XSLT.