Roy T. Fielding. Rfc2396. Extensible Markup Language (XML) 1.0 (Fifth Edition) 2 Documents [Definition: A data object is an XML document if it is well-formed, as defined in this specification. In addition, the XML document is valid if it meets certain further constraints.] Each XML document has both a logical and a physical structure. Physically, the document is composed of units called entities. An entity may refer to other entities to cause their inclusion in the document. A document begins in a "root" or document entity. 2.1 Well-Formed XML Documents [Definition: A textual object is a well-formed XML document if:] Taken as a whole, it matches the production labeled document.It meets all the well-formedness constraints given in this specification.Each of the parsed entities which is referenced directly or indirectly within the document is well-formed.
Document Matching the document production implies that: It contains one or more elements. 2.2 Characters Character Range The mechanism for encoding character code points into bit patterns may vary from entity to entity. <! Coding standards. Note: The Drupal Coding Standards apply to code within Drupal and its contributed modules. This document is loosely based on the PEAR Coding standards. Comments and names should use US English spelling (e.g., "color" not "colour"). Drupal coding standards are version-independent and "always-current". All new code should follow the current standards, regardless of (core) version. Existing code in older versions may be updated, but doesn't necessarily have to be.
Especially for larger code-bases (like Drupal core), updating the code of a previous version for the current standards may be too huge of a task. However, code in current versions should follow the current standards. Note: Do not squeeze coding standards updates/clean-ups into otherwise unrelated patches. See the Helper modules section at the bottom of this page for information on modules that can review code for coding standards problems (and in some cases, even fix the problems).
Contents of this Page # Indenting and Whitespace <? HTML 4.01 Specification. Abstract This specification defines the HyperText Markup Language (HTML), the publishing language of the World Wide Web. This specification defines HTML 4.01, which is a subversion of HTML 4. In addition to the text, multimedia, and hyperlink features of the previous versions of HTML (HTML 3.2 [HTML32] and HTML 2.0 [RFC1866]), HTML 4 supports more multimedia options, scripting languages, style sheets, better printing facilities, and documents that are more accessible to users with disabilities.
HTML 4 also takes great strides towards the internationalization of documents, with the goal of making the Web truly World Wide. HTML 4 is an SGML application conforming to International Standard ISO 8879 -- Standard Generalized Markup Language [ISO8879]. Status of this document This section describes the status of this document at the time of its publication.
This document has been reviewed by W3C Members and other interested parties and has been endorsed by the Director as a W3C Recommendation. HTML Tutorial. HTML5. A vocabulary and associated APIs for HTML and XHTML W3C Working Draft 29 March 2012 This Version: Latest Published Version: Latest Editor's Draft: Previous Versions: Editor: Ian Hickson , Google, Inc. This specification is available in the following formats: single page HTML , multipage HTML , web developer edition . Copyright © 2012 W3C ® ( MIT , ERCIM , Keio ), All Rights Reserved. Abstract 1 Introduction. XOM. The Cafes.