Six Drafts Published Related to XSLT, XQuery, Xpath

W3C published six documents related to XSLT, XQuery, and XPath:

• XSLT and XQuery Serialization 3.0

This document defines serialization of an instance of the data model as defined in [XQuery and XPath Data Model (XDM) 3.0] into a sequence of octets. Serialization is designed to be a component that can be used by other specifications such as [XSL Transformations (XSLT) Version 3.0] or [XQuery 3.0: An XML Query Language].

• XQueryX 3.0

This document defines an XML Syntax for [XQuery 3.0: An XML Query Language] .

• XQuery 3.0: An XML Query Language

XML is a versatile markup language, capable of labeling the information content of diverse data sources including structured and semi-structured documents, relational databases, and object repositories. A query language that uses the structure of XML intelligently can express queries across all these kinds of data, whether physically stored in XML or viewed as XML via middleware. This specification describes a query language called XQuery, which is designed to be broadly applicable across many types of XML data sources.

• XPath and XQuery Functions and Operators 3.0

This is a draft for internal review. Change markings are relative to the Recommendation of 23 January 2007.

• XQuery and XPath Data Model 3.0

This document defines the XQuery and XPath Data Model 3.0, which is the data model of [XML Path Language (XPath) 3.0], [XSL Transformations (XSLT) Version 3.0], and [XQuery 3.0: An XML Query Language] , and any other specifications that reference it. This document is the result of joint work by the [XSL Working Group] and the [XML Query Working Group].

• XML Path Language (XPath) 3.0

XPath 3.0 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]. The data model provides a tree representation of XML documents as well as atomic values such as integers, strings, and booleans, and sequences that may contain both references to nodes in an XML document and atomic values. The result of an XPath expression may be a selection of nodes from the input documents, or an atomic value, or more generally, any sequence allowed by the data model. The name of the language derives from its most distinctive feature, the path expression, which provides a means of hierarchic addressing of the nodes in an XML tree. XPath 3.0 is a superset of [XML Path Language (XPath) Version 1.0], with the added capability to support a richer set of data types, and to take advantage of the type information that becomes available when documents are validated using XML Schema. A backwards compatibility mode is provided to ensure that nearly all XPath 1.0 expressions continue to deliver the same result with XPath 3.0; exceptions to this policy are noted in [I Backwards Compatibility with XPath 1.0].