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| = Applying and XSLT transformation = | = Applying an XSLT transformation = |
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{{{ SRC←'C:\Temp\source.xml' TGT←'C:\Temp\target.txt' XSL←'C:\Temp\stylesheet.xsl' ⎕USING←'System' 'System.Xml,System.Xml.dll' 'System.Xml.Xsl,System.Xml.dll' xslt←⎕NEW XslCompiledTransform xslt.Load⊂XSL xslt.Transform SRC TGT }}} == XslCompiledTransform replaces XslTransform == .Net 2.0 replaced the '''!XslTransform''' class with '''!XslCompiledTransform''' ([[http://msdn.microsoft.com/en-us/library/system.xml.xsl.xslcompiledtransform.aspx|MSDN article]]), making '''!XslTransform''' obsolete. '''!XslCompiledTransform''' is faster than its predecessor and also closes some [[http://msdn.microsoft.com/en-us/library/ms172414.aspx|security]] loopholes in its predecessor, which should be avoided. == Processing Document Type Definitions == The simple example above will not process the files attached to this article. The stylesheet processor rejects the forecast.xsl stylesheet, because it contains a short [[wikipedia:Document_Type_Definition|DTD]] section declaring an entity. Accepting the DTD gives the stylesheet processor a bit a of a blank cheque. Entity declarations can be used to include other files. So the processor is prohibited from processing DTD by default. But this stylesheet comes from a trusted source and we want the stylesheet processor to accept it. This is a common situation when processing your own XML files; for example, in converting [[http://www.docbook.org|DocBook]] source into either web pages or camera-ready PDF files. So this otherwise minimal example extends to permitting DTD processing. |
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| +⎕USING←'System' 'System.Xml,System.Xml.dll' 'System.Xml.Xsl,System.Xml.dll' System System.Xml,System.Xml.dll System.Xml.Xsl,System.Xml.dll xslt←⎕NEW XslCompiledTransform xslt.Load⊂XSL xslt.Transform SRC TGT }}} .Net 2.0 replaced the {{{XslTransform}}} class with {{{[:http://msdn.microsoft.com/en-us/library/system.xml.xsl.xslcompiledtransform.aspx:XslCompiledTransform]}}}, making {{{XslTransform}}} obsolete. {{{XslCompiledTransform}}} is faster than its predecessor and also closes some [:http://msdn.microsoft.com/en-us/library/ms172414.aspx:security] loopholes in its predecessor, which should be avoided. == Processing Document Type Definitions == This second example deals with an XSL stylesheet that contains a short [:http://en.wikipedia.org/wiki/Document_Type_Definition:DTD] section declaring an entity. Because the stylesheet comes from a trusted source we want the stylesheet processor to accept it. (Accepting the DTD gives the stylesheet processor a bit a of a blank cheque. Entity declarations can be used to include other files. So the processor is prohibited from processing DTD by default.) This is a common situation when processing your own XML files; for example, in converting [:http://www.docbook.org:DocBook] source into either web pages or camera-ready PDF files. So this otherwise minimal example extends to permitting DTD processing. {{{ |
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Author: StephenTaylor <<AttachInfo>> ---- CategoryDyalogExamplesDotNet CategoryDotNet |
Applying an XSLT transformation
Simple case
SRC←'C:\Temp\source.xml'
TGT←'C:\Temp\target.txt'
XSL←'C:\Temp\stylesheet.xsl'
⎕USING←'System' 'System.Xml,System.Xml.dll' 'System.Xml.Xsl,System.Xml.dll'
xslt←⎕NEW XslCompiledTransform
xslt.Load⊂XSL
xslt.Transform SRC TGT
XslCompiledTransform replaces XslTransform
.Net 2.0 replaced the XslTransform class with XslCompiledTransform (MSDN article), making XslTransform obsolete.
XslCompiledTransform is faster than its predecessor and also closes some security loopholes in its predecessor, which should be avoided.
Processing Document Type Definitions
The simple example above will not process the files attached to this article. The stylesheet processor rejects the forecast.xsl stylesheet, because it contains a short DTD section declaring an entity.
Accepting the DTD gives the stylesheet processor a bit a of a blank cheque. Entity declarations can be used to include other files. So the processor is prohibited from processing DTD by default. But this stylesheet comes from a trusted source and we want the stylesheet processor to accept it.
This is a common situation when processing your own XML files; for example, in converting DocBook source into either web pages or camera-ready PDF files. So this otherwise minimal example extends to permitting DTD processing.
SRC←'C:\Temp\forecasts2008.xml'
TGT←'C:\Temp\forecasts.inc'
XSL←'C:\Temp\forecasts.xsl'
xrs←⎕NEW XmlReaderSettings
xrs.ProhibitDtd←0
rdr←XmlReader.Create XSL xrs
xslt←⎕NEW XslCompiledTransform
xslt.Load rdr
xslt.Transform SRC TGTAuthor: StephenTaylor
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