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Mastering XSLT and DOM Technologies for XML Transformations

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Explore the power of XSLT and DOM technologies for efficient XML transformations. Learn about stylesheet programming, simple API for XML (SAX), Document Object Model principles, and declarative-based transformations. Get insights into XSL, XSLFO, and programming-free document processing.

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Mastering XSLT and DOM Technologies for XML Transformations

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  1. XML Transformations Eugenia Fernandez IUPUI

  2. Stylesheet Technologies • Browser-based Presentation • HTML • Cascading Stylesheets • Programming-based Transformation • Simple API for XML (SAX) • Document Object Model (DOM) • Declarative-based Transformation • XSL Transformations (XSLT) • Pagination-based Presentation • XSL Formatting Objects (XSLFO) • Document Style and Semantics Specifications Language (DSSSL)

  3. XSLT XSL XSLFO XSL: XSLT and XSLFO • XSL – Extensible Stylesheet Language • XSLT – XSL Transformations • vocabulary for transforming XML instances into other vocabularies • XSLFO – XSL Formatting Objects • vocabulary for paginated formatting of information • Technically, XSL = XSLFO but more commonly used as

  4. XSLT Stylesheets & DTDs • Independent of any DTD • XSLT processor can process well-formed XML documents without a DTD • one stylesheet can process multiple instances of a DTD • different stylesheets can process a given XML document to produce different results

  5. Stylesheet XSL XML Result Node Tree Source Source Node Tree XML XSLFO InstructionExecution HTML Non-XML XSL Processor XSLT Processing Result

  6. Simple API for XML (SAX) • stream-oriented, platform- and language-independent specification of functions that allow programs to process XML • SAX Principles • document is ordered series of events • XML processor generates events • application writes handlers for each event • Plus/Minus • + fast transformation • - programming needed • - changes in document require changes in program

  7. Document Object Model (DOM) • tree-oriented, platform- and language-neutral programming interface • DOM principles • implements transformation by code • models objects for XML and HTML • standard interface for manipulating the objects

  8. Sources • “XML and Stylesheets”, G. Ken Holman, presentation at XML One Conference, Chicago, IL, May, 2001.

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