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https://issues.apache.org/jira/browse/XALANJ-2738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17850268#comment-17850268
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Mukul Gandhi commented on XALANJ-2738:
--------------------------------------
[~martin.honnen], hoping to look at this issue at earliest. just been busy with
few other tasks.
> getting error "The 1st argument of array:get function call, needs to be an
> xdm array" on map:get of XDM map returned by parse-json which should be XDM
> array
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: XALANJ-2738
> URL: https://issues.apache.org/jira/browse/XALANJ-2738
> Project: XalanJ2
> Issue Type: Bug
> Security Level: No security risk; visible to anyone(Ordinary problems in
> Xalan projects. Anybody can view the issue.)
> Components: Xalan-interpretive
> Affects Versions: The Latest Development Code
> Environment: Windows 11, Java 8
> Reporter: Martin Honnen
> Assignee: Mukul Gandhi
> Priority: Major
> Attachments: parse-json-test1.xsl, xml-sample-with-json-data1.xml
>
>
> This is a bug report on the XSLT 3.0 development branch of Xalan.
>
> I have tried to use an XPath 3.1 array function like array:get on the result
> of calling map:get on the result of parse-json and while that works fine in
> an XSLT 3 processor like Saxon HE 12 for Xalan it fails with "The 1st
> argument of array:get function call, needs to be an xdm array".
>
> Here is the code, XML sample:
> {code:java}
> <root>
> <data>{ "foo" : "bar", "data" : [1,2,3] }</data>
> </root>{code}
>
> XSLT:
>
> {code:java}
> <?xml version="1.0" encoding="utf-8"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> version="3.0"
> xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns:map="http://www.w3.org/2005/xpath-functions/map";
> xmlns:array="http://www.w3.org/2005/xpath-functions/array";
> exclude-result-prefixes="xs map array">
> <xsl:output method="html" indent="no"/>
> <xsl:template match="@* | node()" name="identity">
> <xsl:copy>
> <xsl:apply-templates select="@* | node()"/>
> </xsl:copy>
> </xsl:template>
>
> <xsl:template match="data">
> <xsl:call-template name="identity"/>
> <xsl:variable name="json-map" select="parse-json(.)"/>
> <xsl:comment>
> <xsl:value-of select="array:get(map:get($json-map, 'data'), 1)"/>
> </xsl:comment>
> </xsl:template>
> <xsl:template match="/">
> <xsl:copy>
> <xsl:apply-templates/>
> <xsl:comment>Run with <xsl:value-of
> select="system-property('xsl:vendor')"/> at <xsl:value-of
> select="current-dateTime()"/></xsl:comment>
> </xsl:copy>
> </xsl:template>
> </xsl:stylesheet>
> {code}
>
>
> Results in error
> {noformat}
> file:///C:/Users/marti/IdeaProjects/xalan-java/../../OneDrive/Documents/xslt/blog-xslt-3-by-example/xalan-xslt3-tests/parse-json-test1.xsl;
> Zeilennummer21; Spaltennummer72; javax.xml.transform.TransformerException:
> FORG0006 : The 1st argument of array:get function call, needs to be an xdm
> array{noformat}
>
> The expected result is the value 1 in the comment as the expression
> `array:get(map:get($json-map, 'data'), 1)` should just select the XDM array
> and read out its first array item, the number value 1.
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