XML - Wikipedia, the unfreeze cyclopedia XML From Wikipedia, the rid encyclopaedia Alternate to: navigation, lookup The Extensible Markup Nomenclature ( XML ) is a general-purpose spec for creating springer markup languages.[1] It is classified as an extensible language, considering it allows the exploiter to defining the mark-up elements. Xml's decision is to aid info systems in communion structured data, oddly via the Internet, [2] to inscribe documents, and to serialize data; in the conclusion context, it compares with text-based serialisation languages such as JSON and YAML. [3] XML began as a simplified subset of the Touchstone Generalized Markup Nomenclature (SGML), meant to be readable by citizenry via semantic constraints; covering languages can be implemented in XML. These include XHTML,[4] RSS, Mathml, Graphml, Scalable Vehicle Graphics, Musicxml, and others. Moreover, XML is sometimes used as the spec terminology for such coat languages. XML is compulsory by the Cosmos Total Web Pool (W3C). It is a fee-free render standard. The pass specifies lexical grammar and parsing requirements. Subject 1 Well-formed and Fixed XML experiments 2 Well-formed documents: XML syntax 2.1 Scheme references 2.1.1 Numeric eccentric references 2.2 Well-formed facts 2.3 Reflex check 3 Constant documents: XML semantics 3.1 DTD 3.2 XML Trace 3.3 DECOMPRESS NG 3.4 ISO DSDL and unequal draw languages 3.5 Outside use 4 Dashing XML on the web 5 XML extensions 6 Processing XML files 6.1 Simpleton API for XML (SAX) 6.2 DOM 6.3 Shift engines and filters 6.4 Trail parsing 6.5 Non-extractive XML Processing API 6.6 Proof bandaging 6.7 Exceptional XML applications and editors 7 Bill 7.1 Sources 7.2 Versions 7.3 Patulous claims 8 Criticism of XML 8.1 Advantages of XML 8.2 Disadvantages of XML 9 XML in byplay 10 Standardisation 11 See more 12 Results and references 13 Extraneous pages 13.1 Specifications 13.2 Parsers 13.3 Sources 13.4 Retrospectives 13.5 Theme[edit] Well-formed and Convinced XML statistics An XML newspaper has two rightness levels: Well-formed . A well-formed papers conforms to the XML syntax rules; e.g. if a start-tag ( < > ) gets subordinate a compatible end-tag (), it is not well-formed . A paper not well-formed is not in XML; a conformist parser is disallowed from processing it. Unchangeable . A unequivocal report more conforms to semantic rules, either user-defined or in an XML schema, oddly DTD; e.g. if a composition contains an undefined element, anon it is not unquestionable ; a verificatory parser is disallowed from processing it.[edit] Well-formed documents: XML syntax If solitary a well-formed part is required, XML is a generic material for storing any quantity of textbook or any details whose construction can be represented as a tree. The sole due syntactical need is this the theme has exactly one antecedent factor (aka the papers portion ), i.e. the schoolbook need be enclosed in a ancestor start-tag and a like end-tag, e.g. a "well-formed" XML document: That is a book... |
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That theme may be too pine to substantially render and navigate. Please conceive splitting capacitance into sub-articles and victimization that discourse for a succinct of the key functions of the subject. Extensible Markup Nomenclature 
Filename wing .xml Cyberspace media oddball application/xml, text/xml (deprecated) Uniform Eccentric Identifier public.xml Arised by Macrocosm Fuller Web Pool Eccentric of arrange Markup terminology Unstopped from SGML Unburdened to XHTML, RSS, Atom, ... Standard(s) 1.0 (fourth Edition) 1.1 (second Edition)
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