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TinyXML is a small, simple, operating system-independent [1] XML parser for the C++ language. [2] It is free and open source software, distributed under the terms of the zlib License. [3] TinyXML-2 replaces TinyXML-1 completely and only this version should be used.
This article lists the character entity references that are valid in HTML and XML documents. A character entity reference refers to the content of a named entity. An entity declaration is created in XML, SGML and HTML documents (before HTML5) by using the <!ENTITY name "value"> syntax in a Document type definition (DTD).
The oldest schema language for XML is the document type definition (DTD), inherited from SGML. DTDs have the following benefits: DTD support is ubiquitous due to its inclusion in the XML 1.0 standard. DTDs are terse compared to element-based schema languages and consequently present more information in a single screen.
A document type declaration, or DOCTYPE, is an instruction that associates a particular XML or SGML document (for example, a web page) with a document type definition (DTD) (for example, the formal definition of a particular version of HTML 2.0 - 4.0). [1]
A document type definition (DTD) is a specification file that contains set of markup declarations that define a document type for an SGML-family markup language (GML, SGML, XML, HTML). The DTD specification file can be used to validate documents. A DTD defines the valid building blocks of an XML document.
The Markup Validation Service is a validator by the World Wide Web Consortium (W3C) that allows Internet users to check pre-HTML5 HTML and XHTML documents for well-formed markup against a document type definition (DTD). Markup validation is an important step towards ensuring the technical quality of web pages.
HTML 4 is an SGML application conforming to ISO 8879 – SGML. [20] April 24, 1998 HTML 4.0 [21] was reissued with minor edits without incrementing the version number. December 24, 1999 HTML 4.01 [22] was published as a W3C Recommendation.
The lowercase form is a generic term and may refer to any type of schema, including DTD, XML Schema (aka XSD), RELAX NG, or others, and should always be written using lowercase except when appearing at the start of a sentence. The form "Schema" (capitalized) in common use in the XML community always refers to W3C XML Schema.