The XPath and XQuery Data Model (XDM) 3.1 defines the data model on which all operations of XPath 3.1, XQuery 3.1, and XSLT 3.1 operate.

This document defines serialization of an instance of the XQuery and XPath Data model Data Model into a sequence of octets, such as into XML, text, HTML, JSON.

XPath is an expression language that allows the processing of values conforming to the data model defined in the XQuery and Xpath Data Model.

XPath and XQuery Functions and Operators 3.0 defines a library of functions available for use in XPath, XQuery, XSLT and other languages.

This document defines the syntax and formal semantics of XQuery and XPath Full Text 3.0, which is a language that extends XQuery 3.0 [XQuery 3.0: An XML Query Language] and XPath 3.0 [XML Path Language (XPath) 3.0] with full-text search capabilities.

XPath and XQuery Functions and Operators 3.0 (renamed from XPath and XQuery Functions and Operators 1.1 to align with the family of "3.0" specifications) defines a library of functions available for use in XPath 3.0, XQuery 3.0, and XSLT 3.0. Some of the new features since XPath 2.0 and XQuery 1.0 Functions and Operators include:

• More than 30 new functions have been added, including functions transferred from the XSLT 2.0 specification into Functions and Operators 3.0 and additional versions of existing functions with different signatures
• The syntax for regular expressions was enhanced to allow for non-capturing groups; additionally, a new flag value was added for regular-expression-related functions that accept a flag argument
• Support for function items has been added in the form of a number of new functions
• The description of fn:error was rewritten to accommodate the addition of try/catch capabilities in XQuery 3.0

XPath 3.0 (renamed from XPath 2.1 to align with the family of "3.0" specifications) is an expression language that allows the processing of values conforming to the data model defined in [XQuery and XPath Data Model (XDM) 3.0]. Some of the important new features since XPath 2.0 are:

• Literal function items, inline functions, dynamic function invocations, and function item coercion
• Clarification of rules associated with sequence type matching
• let expressions
• EQNames (QNames with a namespace URI instead of a namespace prefix)
• Support for union types in casting and function arguments

XPath and XQuery Data Model (XDM) 3.0 (renamed from XPath and XQuery Functions and Operators (XDM) 1.1 to align with the family of "3.0" specifications) defines the data model on which all operations of XPath 3.0, XQuery 3.0, and XSLT 3.0 operate. In this version of XDM, two new data types have been added:

• From XML Schema 1.1 Part 2 (Datatypes), the xs:dateTimeStamp data type
• To support XPath 3.0's and XQuery 3.0's function item capabilities, a function item data type

This document defines the syntax and formal semantics of XQuery and XPath Full Text 1.0 which is a language that extends XQuery 1.0 [XQuery 1.0: An XML Query Language] and XPath 2.0 [XML Path Language (XPath) 2.0] with full-text search capabilities.

XPath is a way to refer to parts of an XML document. XPath 2.0 is based on the XQuery 1.0 and XPath 2.0 Data Model (XDM), and also introduces Schema awareness and data typing.

This document defines constructor functions, operators and functions on the datatypes defined in [XML Schema Part 2: Datatypes Second Edition] and the datatypes defined in [XQuery 1.0 and XPath 2.0 Data Model]. It also discusses functions and operators on nodes and node sequences as defined in the [XQuery 1.0 and XPath 2.0 Data Model]. These functions and operators are defined for use in [XML Path Language (XPath) 2.0], [XQuery 1.0: An XML Query Language] and [XSL Transformations (XSLT) Version 2.0] and other related XML standards. The signatures and summaries of functions defined in this document are available at: http://www.w3.org/2005/xpath-functions.

This document defines the W3C XQuery 1.0 and XPath 2.0 Data Model (XDM), which is the data model of [XPath 2.0], [XSLT 2.0], and [XQuery], and any other specifications that reference it. This data model is based on the [XPath 1.0] data model and earlier work on an [XML Query Data Model]. This document is the result of joint work by the [XSL Working Group] and the [XML Query Working Group].

This document defines formally the semantics of XQuery 1.0 [XQuery 1.0: An XML Query Language] and XPath 2.0 [XML Path Language (XPath) 2.0].

XPath is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer.

This document specifies requirements and use cases for Full-Text Search for use in XQuery 3.0 and XPath 3.0.

The document specifies requirements for Full-Text Search for use in XQuery [XQuery] and XPath [XPath].

This document specifies usage scenarios for full-text queries as part of XML Query [XQuery 1.0: An XML Query Language] and XPath [XML Path Language (XPath) 2.0].

Requirements for version 2.0 of XPath; we are now working on Version 2.1.

This document describes possible strategies for tokenizing the [XML Path Language (XPath) 2.0] and [XQuery 1.0: An XML Query Language] languages, and is provided as a helpful guide to those who are designing an implementation for these languages, and as background material for the normative EBNF found in the language specifications. In the future this document may be expanded to cover more general parsing strategies.