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Presentation Section II

Managing Web Content With Core Focus And HTML/XML Part II Summit 2001, Orlando Desert, California Bob Hughes and Laura Voss-Allen, California State University, Hayward rhughes@csuhayward.edu , lvoss-allen@csuhayward.edu NORCAL FUSE: http://www.csuhayward.edu/FOCUS/ncalibug.htm.

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Presentation Section II

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  1. Managing Web Content With Core FocusAnd HTML/XML Part IISummit 2001, Orlando Desert, California Bob Hughes and Laura Voss-Allen, California State University, Haywardrhughes@csuhayward.edu, lvoss-allen@csuhayward.eduNORCAL FUSE: http://www.csuhayward.edu/FOCUS/ncalibug.htm

  2. Presentation Section II • Custom XML Content and Data Generation with Core FOCUS • HTML and XML Integration • Data Separation and Binding • True Paging with JavaScript Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  3. What is XML? • XML = Extensible Markup Language • Per W3C – “XML is a subset of SGML…XML has been designed for ease of use…with both SGML and HTML.” • Unlike HTML, XML does not have a fixed set of predefined elements. Instead XML has only a very basic syntax allowing the XML author to create elements and name them. • XML Syntax is flexible but strict (not forgiving like HTML) • XML is not a replacement for HTML, it is complementary Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  4. What is XML? (cont’d) • XML documents are structured in a Treelike hierarchy • Element names can and should be descriptive • Elements are nested within other elements • Can be used to describe chapters in a book, database fields, etc… • Supports HRMML, CML, MathML, GedML, MusicMl and more… Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  5. Basic XML Rules • Document must have only one top-level/root element • Elements must be properly nested • Elements must have start and end tags and tag names must match(case sensitive) Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  6. XML Notes… • Easy to learn – choose applications wisely - may not benefit much, depending on app • Separation of data from formatting code - i.e. "data islands" - a big benefit! • Paging buttons + other HTML/Java/JavaScript/VBScript Integration an advantage • hrefs not bindable - disadvantage Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  7. Simple XML Layout • Uses Minimum Amount Of XML Code To Convert Focus Report To XML Format • Unlike HTML Minimum Effort, Results Produces only Rough Looking Tree Based Expandable View • Requires Very Little Effort Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  8. XML Tag Elements XML Declaration Document/Root Element Elements Nested With Document Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  9. Simple XML Layout Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  10. Display Methods for XML Documents • Style Sheet Linking • CSS (standard HTML Style sheet language) • XSL,XSLT (newer, more powerful XML oriented) • Data Binding** • Link from HTML Page • Bind standard HTML Elements • e.g. SPAN, TABLE • Scripting • After linking from HTML Page use JavaScript, VBScript etc. for access and manipulation Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  11. XML Formatting with CSS Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  12. XML Formatting with CSS CSS File Reference Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  13. XML Formatting with CSS Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  14. XML Formatting with XSL • XSL=Extensible Stylesheet Language • Linked to an XML document like CSS • XSL provides more power • Present data in any order or arrangement • Freely modify or add information • Sort and Filter XML Data • May include scripts Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  15. XML Formatting with XSL Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  16. XML Formatting with XSL Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  17. HTML/XML DATA BINDING • Used for displaying XML Data from within a conventional HTML page. • Links HTML elements to XML Data File elements • Works only with symmetric XML Documents such as a database with records and fields Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  18. Main HTML/XML Binding Steps with Core Focus... • Use DEFINE Facility For XML and HTML Tag Creation • Incorporate XML and HTML Tags into Focexec for XML and HTML Files • Save XML and HTML Files via WP Hold • Use FTP Dynamic Focexec to move to any IP address (Web Server, etc.) Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  19. XML TAG DEFINES Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  20. HTML/XML Data Binding • Tables Used For Data Presentation • Font Sizing and Color Control • XML Links added to HTML Page • HTML and XML Files Generated • Javascript Contols Used For Paging against Bound XML Data File Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  21. HTML with XML Data Binding(1) Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  22. HTML with XML Data Binding(2) Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  23. HTML with XML Data Binding(3) Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  24. HTML with XML Data Binding(4) Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  25. HTML > HTML/XML Links Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  26. HTML W/ All Data Embedded Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  27. HTML with XML Data Binding Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  28. XML Parsers • MS IE v5.5 (built-in parser) • MSXML v4.0 • MS XML Validation Tool (command line) • Xmlint.exe @www.microsoft.com/xml • Netscape v6.01 (built-in parser) • Online Brown University XML Validator • Wide Variety of XML Parsers/Validators written in Java ‘on the web’ Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  29. XML Parsers-MS XML Validation Tool (command line) Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  30. XML Parsers-MSIE v5.5 Element Tag Name Mismatch Error Found Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  31. XML Parsers-Netscape v6.01 Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  32. XML Validation-Brown Univ http://www.stg.brown.edu/service/xmlvalid/ Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  33. XML Validation-Brown Univ http://www.stg.brown.edu/service/xmlvalid/ Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

  34. References • Books • MS Press Step by Step XML • Addison-Wesley XSLT Working with XML and HTML • Web Sites • www.microsoft.com/xml • www.w3c.org/xml • www.xml.com • www.xml.org • Presentation Update • www.csuhayward.edu/FOCUS/summit01 Summit 2001 - Bob Hughes & Laura Voss-Allen, Cal State Univ., Hayward

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