Differences between revisions 2 and 9 (spanning 7 versions)
⇤ ← Revision 2 as of 2008-06-20 13:26:42 →
Size: 1881
Editor: StephenTaylor
Comment:
← Revision 9 as of 2015-04-05 01:30:14 → ⇥
Size: 2135
Editor: PierreGilbert
Comment:
Deletions are marked like this. Additions are marked like this.
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      SRC←'C:\Temp\forecasts2008.xml'
      TGT←'C:\Temp\forecasts.inc'
      XSL←'C:\Temp\forecasts.xsl'		       SRC←'C:\Temp\source.xml'
      TGT←'C:\Temp\target.txt'
      XSL←'C:\Temp\stylesheet.xsl'
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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		       ⎕USING←'System' 'System.Xml,System.Xml.dll' 'System.Xml.Xsl,System.Xml.dll'
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.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. .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.
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{{{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. '''!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.
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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. 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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      SRC←'C:\Temp\forecasts2008.xml'
      TGT←'C:\Temp\forecasts.inc'
      XSL←'C:\Temp\forecasts.xsl'
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Author: StephenTaylor
<<AttachInfo>>
----
CategoryDotNet - CategoryDyalogDotNet - CategoryDyalogExamplesDotNet

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 TGT

Author: StephenTaylor

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CategoryDotNet - CategoryDyalogDotNet - CategoryDyalogExamplesDotNet

XsltTransform (last edited 2015-04-05 01:30:14 by PierreGilbert)