Sunday, February 1, 2015

what is xslt

XSLT (Extensible Stylesheet Language Transformations) is a language for transforming XML documents into other XML documents, or other formats such as HTML for web pages, plain text or into XSL Formatting Objects, which may subsequently be converted to other formats, such as PDF PostScript and PNG.

Extensible Stylesheet Language Transformations (XSLT) has evolved from the early Extensible Stylesheet Language (XSL) standard. XSL specifies a language definition for XML data presentation and data transformations. Data presentation means displaying data in some format and/or medium. Presentation is about style. Data transformation means parsing an input XML document into a tree of nodes, and then converting the source tree into a result tree. Transformation is about data exchange.

Because these functionalities serve two distinct purposes, XSLT was proposed and later accepted as a separate standard for XML data transformation only. XSL is now generally referred to as XSL Formatting Objects (XSL-FO), to distinguish it from XSLT. The future of XSL-FO as a standard is uncertain, because much of its functionality overlaps with that provided by cascading style sheets (CSS) and the HTML tag set. If cross-vendor compatibility is important, you might want to avoid XSL-FO until it becomes a standard fully accepted by the Worldwide Web Consortium.

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