You might also be interested in my paper on JSON transformation from XML
Prague 2016, which examines some more complex transformations

http://www.saxonica.com/papers/xmlprague-2016mhk.pdf

Michael Kay
Saxonica

> On 15 Mar 2019, at 10:42, Mukul Gandhi gandhi.mukul@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Hi all,
>     XPath 3.1 has functions json-to-xml() and xml-to-json(). I thought of
using these two functions in a XSLT 3.0 stylesheet, to do json to json
transformations. Below is an example of this,
>
> Input JSON file person.txt:
>
> {
>    "id" : 105,
>    "medals" : [1, 2, 3],
>    "fName" : "Mukul",
>    "lName" : "Gandhi",
>    "address" : {
>       "street1" : "xyz",
>       "street2" : "maddison avenue",
>       "country" : "C1"
>     }
> }
>
> I wish to transform above JSON document, into another JSON document which
should look like following,
>
> {
>    "id" : 105,
>    "medals" : [1, 2, 3],
>    "name" : "Mukul Gandhi",
>    "address" : {
>       "street1" : "xyz",
>       "street2" : "maddison avenue",
>       "country" : "C1"
>     }
> }
>
> Everything in second JSON document is same as the first one, except that
"fName" and "lName" fields have been merged into one "name" field. Following
is a XSLT stylesheet I've written for the mentioned requirements,
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform
<http://www.w3.org/1999/XSL/Transform>"
>                          xmlns:xs="http://www.w3.org/2001/XMLSchema
<http://www.w3.org/2001/XMLSchema>"
>                          xmlns:fn="http://www.w3.org/2005/xpath-functions
<http://www.w3.org/2005/xpath-functions>"
>                          exclude-result-prefixes="xs fn"
>                          version="3.0">
>
>     <xsl:variable name="inpJson" select="unparsed-text('person.txt')"
as="xs:string"/>
>
>     <xsl:output method="text" />
>
>     <xsl:template match="/">
>        <xsl:variable name="inpXml" select="json-to-xml($inpJson)"/>
>        <xsl:variable name="intermediate">
>           <xsl:apply-templates select="$inpXml/fn:map" mode="M0"/>
>        </xsl:variable>
>        <xsl:copy-of select="xml-to-json($intermediate, map{'indent':
true()})"/>
>     </xsl:template>
>
>     <xsl:template match="node() | @*" mode="M0">
>         <xsl:copy>
>             <xsl:apply-templates select="node() | @*" mode="M0"/>
>         </xsl:copy>
>     </xsl:template>
>
>     <xsl:template match="fn:string[@key = 'fName']" mode="M0">
>        <fn:string key="name"><xsl:value-of select="concat(., ' ',
following-sibling::fn:string[1])"/></fn:string>
>     </xsl:template>
>
>     <xsl:template match="fn:string[@key = 'lName']" mode="M0"/>
>
> </xsl:stylesheet>
>
> The above mentioned stylesheet, produces the wanted results.
>
> Just thought of sharing these facts with members here, for any comments,
suggestions.
>
>
>
>
> --
> Regards,
> Mukul Gandhi
>
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