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<p><b>New page</b></p><div>'''XHTML modularization''' is a methodology for producing modularized markup languages in a number of different schema languages (currently [[Document Type Definition|DTD]]s, [[XML Schema (W3C)|XML Schema]] and [[Relax NG]]) so that the modules can easily be plugged together to create markup languages.<ref>{{cite web|url=http://www.w3.org/TR/xhtml-modularization/ |title=Modularization of XHTML - W3 Consortium}}</ref><br />
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Although it was originally designed to help manage the development of various XHTML Profiles, such as XHTML 1.1, [[XHTML Basic]] for mobile devices, and XHTML Print for sending to printers,<br />
the methodology is independent of XHTML, and has been used for the definition of other markup languages as well, such as [[Scalable Vector Graphics|SVG]] and [[MathML]].<br />
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==Method==<br />
XHTML Modularization consists of three essential parts<br />
# a technique or methodology (as explained, actually independent of XHTML, and applicable to any XML-based markup language) for defining abstract modules of a markup language, and implementing those modules in various schema languages, such as [[Document Type Definition|DTD]]s, [[XML Schema (W3C)|XML Schema]], and [[Relax NG]].<br />
# a collection of abstract modules<br />
# a number of implementations of those modules in various schema languages.<br />
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To define a language using these modules, you only have to define a ''driver'' in one or more of the implementation schema languages, that causes the necessary modules to be loaded.<br />
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==Application to XHTML==<br />
In its application to XHTML, it provides a means for defining modules of [[XHTML]] to allow subsetting and extending XHTML in a controlled way.<ref>{{cite web|url=http://www.thaiopensource.com/relaxng/xhtml/ |title=Modularization of XHTML in Relax NG}}</ref><br />
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Core modules are:<br />
* '''Structure''' (html, head, body, title...)<br />
* '''Text''' (h1, h2, h3... p, pre...)<br />
* '''Hypertext''' (a)<br />
* '''List''' (ul, li...)<br />
Other modules include applet, image, forms and basic forms.<br />
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== References ==<br />
{{Reflist}}<br />
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{{DEFAULTSORT:Xhtml Modularization}}<br />
[[Category:XML-based standards]]<br />
[[Category:XHTML]]<br />
[[Category:World Wide Web Consortium standards]]</div>imported>Certes