CODEWITHSUNDEEP
xmlxquerymarklogicxslt-3.0marklogic-10
Madoantony
Madoantony

Reputation: 195

XSLT 3.0 support in Marklogic xml transformation

I'm new to Marklogic XSLT transformations and I have the below questions.

What XSLT engine does Marklogic use to transform document using xdmp:xslt-invoke() function?Is there a way that we can support XSLT 3.0 version in Marklogic?

I'm trying to use XSLT 3.0 version that has the below variable for transformation

<xsl:variable name="format-map" as="map(xs:string,xs:string)">

and I'm getting below error when using xdmp:xslt-invoke() function in Marklogic

XSLT-BADSEQTYPE: (err:XTSE0020) /*:stylesheet/*:variable[1] -- Invalid sequence type: /*:stylesheet/*:variable[1]/@as (XDMP-UNEXPECTED: (err:XPST0003) Unexpected token syntax error, unexpected Lpar_, expecting $end)

Please let me know how to resolve this

Upvotes: 0

Views: 298

Answers (1)

Charles Foster
Charles Foster

Reputation: 338

MarkLogic supports XSLT 2.0, but that doesn't stop you from using in-memory style maps.

Just declare the MarkLogic map namespace in the stylesheet, then you've got access to MarkLogic's map functions. Just watch out for 1 key difference which is that MarkLogic's maps are mutable, where as maps in XSLT 3.0 are immutable.

In other words, if you add/change/delete content to a MarkLogic map, with say map:put($map, "a", "b"), the map $map is changed directly, in-place - and when you try to do map:get($map, "a") later, you'll get the most recent version of what a is, i.e. "b".

If you try to update a map in XSLT 3.0, you'll get a whole new updated immutable copy.

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:map="http://marklogic.com/xdmp/map"
  exclude-result-prefixes="map"                                                                                                                                                                         
  version="2.0">

  <xsl:variable name="my-map" as="map:map" select="map:map()" />

  <xsl:template match="/">
    <xsl:sequence select="map:put($my-map, 'a', 'b')"/>
    <xsl:value-of select="map:get($my-map, 'a')"/>
  </xsl:template>

</xsl:stylesheet>

Upvotes: 3

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