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Applications of XSLT. generating Word documents WordML provides formatting and content elements Word 2003 can read WordML files XSLT can be used to transform.

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Presentation on theme: "Applications of XSLT. generating Word documents WordML provides formatting and content elements Word 2003 can read WordML files XSLT can be used to transform."— Presentation transcript:

1 Applications of XSLT

2 generating Word documents WordML provides formatting and content elements Word 2003 can read WordML files XSLT can be used to transform XML data file into a WordML file

3 progid="Word.Document> XSLT, MSoffice and wordML namespaces root template sets up a WordML document

4 XML source content, MSOffice, WordML and XSLT elements all included in the template for chapter elements XSLT selects the title attributeMSOffice element defining document properties WordML elements defining a paragraph style

5 XSLT template for link elementsapply templates for source contentend of stylesheet

6

7 XSLT and SVG SVG - Scalable Vector Graphics XML data sources can be rendered in SVG for visualisation example: the data source 23 94 55

8 <xsl:stylesheet version= 1.0 xmlns:xsl= http://www.w3.org/1999/XSL/Transform > <svg xmlns:svg= http://www.w3.org/2000/svg viewBox= 0 0 {10*(count(data/datum)+1)} 100 > <rect x= {10*position()} y= {100-.} width= 10 height= {.} fill= red stroke= black />

9 Result

10 ChessGML is an XML vocabulary to encode chess games. Used by chess software but not easily readable otherwise. And it is not understood by browsers...... Using XSLT it is possible to write a transform to animated SVG for display in browsers. The stylesheet first generates the initial chess board. It also defines each chess piece as an SVG font glyph. Then, for each move, SMIL Animation elements are generated.

11 Result

12 serving content to multiple devices e.g. which image version, text-style features, etc... e.g. use of particular WMLScript features mobile phone, PDA, braille reader, web browser,...

13 Transform relational data to xml Statistically analyse xml data Generate an xml document based on business logic Render xml as HTML, WML, VXML Guided Adaptive Search Framework http://www-128.ibm.com/developerworks/xml/library/x-levxslt/

14 XI extracts data into an XML format XSLT adapts output for different devices XSLT transformations

15 XLink eXtensible Linking Language w3c-defined namespace XLink attributes can be attached to arbitrary XML elements they encode relationships and connections –simple hyperlinks –indices and tables of contents –text annotations –identify sub-networks

16 link types Defined by the xlink:type attribute simple extended locator arc title resource

17 Simple Links defines a one-way connection between two resources starting resource –the link element itself ending resource –identified by a URI defined by xlink:type and xlink:href attributes

18 The wonderful Wizard of Oz L. Frank Baum 1900 namespace can be defined in link element or any ancestor element xlink:type attribute indicates the type of xlink, in this case simple xlink:href is a URI for the xlink, in this case an ftp URL pointing at a plain text file.

19 Link behaviour under what circumstances is a link actuated? –onclick may be a meaningless concept –xlink:actuate attribute suggests when the link should be actuated onLoad onRequest other none

20 Link behaviour what should happen when a link is actuated? –xlink:show attribute suggests how an application should react new replace embed other none

21 Link semantics xlink may be used to represent many types of relationship parent - child previous - next employer - employee customer - supplier departure point - destination link semantics are text attributes that describe relationships

22 Link semantics xlink:title attribute –plain text –describes the ending resource xlink:role attribute –contains a URI –points to some sort of descriptive information about the ending resource

23 Link semantics The wonderful Wizard of Oz L. Frank Baum 1900

24 Extended links describes a collection of resources and a collection of paths between resources each path connects exactly two resources any resource may be connected to any other resource, including itself the extended link is a directed labelled graph made up of locators, arcs, resources and titles

25 Extended links

26 locator links indicates a remote resource xlink:type = locator located with href attribute, which is a URI labelled with a label attribute, which names the element of which it is an attribute can also have title and role attributes

27 The wonderful Wizard of Oz L. Frank Baum 1900 extended linklocator link

28 arc links arcs represent paths between resources xlink:type = arc xlink:from attribute identifies the source of the linl xlink:to attribute identifies the target of the link from and to take locator labels as values

29 The wonderful Wizard of Oz 1900 The Marvelous Land of Oz 1904

30 Ozma of Oz 1907

31 The Wizard Of Oz Ozma Of Oz The Marvellous Land Of Oz next prev extended link example

32 internal and external resources

33 resource links represent elements within the document containing the links xlink:type = resource also has label, role and title attributes resources are internal, locators are external arcs can be between any combination of locators and resources

34 title links used to contain more information than simply a title attribute the content of the element ought to be read as the title Xlink standards are only sparsely implemented

35 Linkbases documents linking only remote resources or inbound links are called linkbases linkbase

36 XSLT and XLink XSLT could be used to transform a linkbase into a structural representation (in SVG say) templates could be defined to detect xlink attributes:

37 Xlink and DTDs xlink attributes must be defined in DTDs for documents to be valid


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