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XPath (XML Path Language) is an expression language designed to support the query or transformation of XML documents. It was defined by the World Wide Web Consortium (W3C) in 1999, [1] and can be used to compute values (e.g., strings, numbers, or Boolean values) from the content of an XML document.
XSLT 3.0 will work with either XPath 3.0 or 3.1. In the case of 1.0 and 2.0, the XSLT and XPath specifications were published on the same date. With 3.0, however, they were no longer synchronized; XPath 3.0 became a Recommendation in April 2014, followed by XPath 3.1 in February 2017; XSLT 3.0 followed in June 2017.
The fourth technology platform is JavaScript. Previously the open-source XSLT processor Saxon-CE was cross-compiled from the common Java source using GWT. SaxonJS is a completely new implementation in JavaScript. The XSLT sources can either be compiled using Saxon-EE or using a built-in XSLT-based XSLT compiler, which creates less optimized code.
I.e. the matching elements by select attribute in xsl:apply-templates correspond to the template that match the same elements. If mode is specified, only the templates that have the same “mode” and have an appropriate “match” will be applied.
T4 Template/Text File: Any text format such as XML, XAML, C# files or just plain text files. Umple: Umple, Java, Javascript, PHP Active Tier Umple code embedding one or more of Java, Python, C++, PHP or Ruby Pure Umple code describing associations, patterns, state machines, etc.
XSLT elements are recognized and drawn in a different color from non-XSLT XML elements. It also provides special validation services for XSLT documents. For example, it can validate that an attribute containing an XPath string is a valid XPath. oXygen XML automatically assumes that documents with the .xsl and .xslt extensions are XSLT files ...
XPath 3 is the latest version of the XML Path Language, a query language for selecting nodes in XML documents. It supersedes XPath 1.0 and XPath 2.0 . XPath 3.0 became a W3C Recommendation on 8 April 2014, while XPath 3.1 became a W3C Recommendation on 21 March 2017.
The data modeling language comes with a number of built-in data types. Additional application specific data types can be derived from the built-in data types. More complex reusable data structures can be represented as groupings. YANG data models can use XPATH expressions to define constraints on the elements of a YANG data model.