Namespace-based Validation Dispatching Language, aka Namespace-based Validation Dispatching Language, is an actively used xml format created in 2006. Namespace-based Validation Dispatching Language (NVDL) is an XML schema language for validating XML documents that integrate with multiple namespaces. It is an ISO/IEC standard, and it is Part 4 of the DSDL schema specification. Much of the work on NVDL is based on the older Namespace Routing Language.. Read more on Wikipedia...

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Example code from the web:

<rules xmlns="http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0">
 <namespace ns="http://www.w3.org/1999/xhtml">
   <validate schema="xhtml.rng"/>
 </namespace>
 <namespace ns="http://www.w3.org/2000/svg/">
   <validate schema="svg.sch"/>
 </namespace>
 <anyNamespace>
   <reject/>
 </anyNamespace>
</rules>

Last updated August 9th, 2020

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