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XSLT

XSLT. Susanne Sherba. October 12, 2000. Overview. What is XSLT? Related Recommendations XSLT Elements Associating Stylesheets with Documents Additional Information. What is XSLT?. A language for transforming XML documents into other XML documents

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XSLT

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  1. XSLT Susanne Sherba October 12, 2000

  2. Overview • What is XSLT? • Related Recommendations • XSLT Elements • Associating Stylesheets with Documents • Additional Information

  3. What is XSLT? • A language for transforming XML documents into other XML documents • Designed for use both as part of XSL and independently of XSL • Not intended as a completely general-purpose XML transformation language. [W3C XSLT Recommendation]

  4. XSLT Process

  5. XSLT Status • W3C Recommendation - November 16, 1999 • Version 1.0

  6. Related Recommendations • XPath • XSL • XML Stylesheet Recommendation

  7. XSLT Stylesheet Element <stylesheet version= “1.0”> <transform> allowed as synonym

  8. XSLT Template Element <templatematch = expressionname = namepriority = numbermode = name>

  9. Applying Templates <apply-templatesselect = expressionmode = name> <call-template name = name>

  10. Example 1 <?xml version="1.0"?> <?xml-stylesheet href="style1.xsl” type="text/xsl"?> <items> <item partNum="123-AB"> <productName>Porsche</productName> <quantity>1</quantity> </item> <item> <productName>Ferrari</productName> <quantity>2</quantity> </item> </items> <?xml version="1.0"?> <xsl:stylesheet version=“1.0” xmlns:xsl="http://www.w3.org/TR/WD-xsl"> <xsl:template match="/"> <html> <head></head> <body> <ol> <li>Root</li> <xsl:apply-templates/> </ol> </body> </html> </xsl:template> <xsl:template match="items"> <li>Items</li> <xsl:apply-templates/> </xsl:template> <xsl:template match="item"> <li>Item: <xsl:value-of select="productName"/></li> </xsl:template> </xsl:stylesheet>

  11. Example 1

  12. Example 2 <?xml version="1.0"?> <?xml-stylesheet href="style2.xsl” type="text/xsl"?> <items> <item partNum="123-AB"> <productName>Porsche</productName> <quantity>1</quantity> </item> <item> <productName>Ferrari</productName> <quantity>2</quantity> </item> </items> <?xml version="1.0"?> <xsl:stylesheet version=“1.0” xmlns:xsl="http://www.w3.org/TR/WD-xsl"> <xsl:template match="/"> <html> <head></head> <body> <ol> <xsl:apply-templates/> <li>Root</li> </ol> </body> </html> </xsl:template> <xsl:template match="items"> <xsl:apply-templates/> <li>Items</li> </xsl:template> <xsl:template match="item"> <li>Item: <xsl:value-of select="productName"/></li> </xsl:template> </xsl:stylesheet>

  13. Example 2

  14. Repetition <for-eachselect = “item”> Do something here ... </for-each>

  15. Example 3 <?xml version="1.0"?> <?xml-stylesheet href="style3.xsl” type="text/xsl"?> <items> <item partNum="123-AB"> <productName>Porsche</productName> <quantity>1</quantity> </item> <item> <productName>Ferrari</productName> <quantity>2</quantity> </item> </items> <?xml version="1.0"?> <xsl:stylesheet version=“1.0” xmlns:xsl="http://www.w3.org/TR/WD-xsl"> <xsl:template match="/"> <html> <head></head> <body> <ol> <li>Root</li> <xsl:apply-templates/> </ol> </body> </html> </xsl:template> <xsl:template match="items"> <li>Items</li> <xsl:for-each select="item"> <li>Item: <xsl:value-of select="productName"/> </li> </xsl:for-each> </xsl:template> </xsl:stylesheet>

  16. Example 3

  17. Conditional Processing <if test = “position()=last()”> Do something … </if>

  18. Conditional Processing <choose> <whentest = “position()=last()”> Do something for last element </when> <whentest = “position()=first()”> Do something for first element </when> <otherwise> Do something for other elements </otherwise> </choose>

  19. Creating the result tree <value-of select=expression> <element name=string> <attribute name=string> <processing-instruction name=string> <comment> <text>

  20. Example 4 <xsl:template match="/"> <html> <head></head> <xsl:comment> Set the background to red </xsl:comment> <xsl:element name="body"> <xsl:attribute name="bgcolor"> red </xsl:attribute> <ol> <li>Root</li> <xsl:apply-templates/> </ol> </xsl:element> </html> </xsl:template> ... XSL output: <html><head></head><!--Set the background to red--><body bgcolor="red"><ol><li>Root</li><li>Items</li><li>Item: Porsche</li><li>Item: Ferrari</li></ol></body></html>

  21. Numbering <numbercount = patternfrom = patternvalue = number-expressionformat = string/>

  22. Combining Stylesheets <include href = uri /> <import href = uri />

  23. Some Other Elements <copy> <copy-of> <sort select=“expression”> <variable> <param> <output>

  24. Associating Stylesheets with Documents W3C Stylesheets Recommendation Version 1.0 In the xml document: <?xml-stylesheet href=uri type=“text/xsl”?>

  25. Additional Information • XSLT Recommendation Version 1.0 - http://www.w3.org/TR/xslt • XSLT.com - http://www.xslt.com • XSLT Reference - http://www.zvon.org/xxl/XSLTreference/Output/index.html

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