W3C

The Web Applications Working Group has published a Last Call Working Draft of DOM Parsing and Serialization. This specification defines various APIs for programmatic access to HTML and generic XML parsers by web applications for use in parsing and serializing DOM nodes. Comments are welcome through 22 May. Learn more about the Rich Web Client Activity.

Today the Timed Text Working Group (TT WG) published a First Public Working Draft of TTML Text and Image Profiles for Internet Media Subtitles and Captions 1.0. This document specifies two profiles of Timed Text Markup Language 1: a text-only profile and an image-only profile. These profiles are intended to be used across subtitle and caption delivery applications worldwide, thereby simplifying interoperability, consistent rendering and conversion to other subtitling and captioning formats. The text profile is a superset of TTML Simple Delivery Profile for Closed Captions (US). Learn more about Video on the Web.

The HTML Working Group updated the Candidate Recommendation of HTML5. This specification defines the 5th major revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML). Learn more about the HTML Activity.

The Cascading Style Sheets (CSS) Working Group has published a First Public Working Draft of CSS Will Change Module Level 1. This document defines the will-change CSS property, which allows an author to inform the UA ahead of time of what kinds of changes they are likely to make to an element. This allows the UA to optimize how they handle the element ahead of time, performing potentially-expensive work preparing for an animation before the animation actually begins. Learn more about the Style Activity.

Today the XML Query Working Group and the XSLT Working Group have published seven First Public Working Drafts, four of which are jointly developed and three are from the XQuery Working Group.

The joint documents are:

• XML Path Language (XPath) 3.1. XPath is a powerful expression language that allows the processing of values conforming to the data model defined in the XQuery and XPath Data Model. The main features of XPath 3.1 are maps and arrays.
• XPath and XQuery Functions and Operators 3.1. This specification defines a library of functions available for use in XPath, XQuery, XSLT and other languages.
• XQuery and XPath Data Model 3.1. This specification defines the data model on which all operations of XPath 3.1, XQuery 3.1, and XSLT 3.1 operate.
• XSLT and XQuery Serialization 3.1. This document defines serialization of an instance of the XQuery and XPath data model into a sequence of octets, such as into XML, text, HTML, JSON.

The three XML Query Working Group documents are:

• XQuery 3.1 Requirements and Use Cases, which describes the reasons for producing XQuery 3.1, and gives examples.
• XQuery 3.1: An XML Query Language. XQuery is a versatile query and application development language, capable of processing the information content of diverse data sources including structured and semi-structured documents, relational databases and tree-bases databases. The XQuery language is designed to support powerful optimizations and pre-compilation leading to very efficient searches over large amounts of data, including over so-called XML-native databases that read and write XML but have an efficient internal storage. The 3.1 version adds support for features such as arrays and maps primarily to facilitate processing of JSON and other structures.
• XQueryX 3.1, which defines an XML syntax for XQuery 3.1.

Learn more about the XML Activity.

The Efficient XML Interchange Working Group has published a Working Draft of Efficient XML Interchange (EXI) Primer, which provides technical background for the Efficient XML Interchange (EXI) format. It is oriented towards quickly understanding how the EXI format can be used in practice and how options can be set to achieve specific needs. Learn more about the Extensible Markup Language (XML) Activity.