Library: XML and parsing, XSLT support (OMXSLT) Import: omxslt.xmd

Return type: output Returns:  An OmniMark output object to the XSLT processor

Declaration

  export external output function writer
                with value     stylesheet stylesheet
          parameters read-only stream     parameters optional
                into value     output    xml-output

Argument definitions

stylesheet

is the XSLT stylesheet that will be applied to the input data,

parameters

is a shelf of parameters required by the stylesheet, and

xml-output

is a destination to which the XSLT processor will write its data.

Use writer to apply an XSLT stylesheet to a well-formed XML instance that is generated by the execution of your OmniMark program. The result of the transformation is written to xml-output, from where further processing can be performed.

Example

An XSLT stylesheet stored in a file stylesheet1.xsl can be applied to a well-formed XML instance stored in file input1.xml using the following program. Before passing the data through the XSLT processor, the program uses pattern-matching to uppercase all element names in the input data. It is the output of the pattern matching engine is fed to the XSLT processor.

          import "omxslt.xmd" prefixed by xslt.

          process
             local stream processor
             local xslt.stylesheet stylesheet initial { xslt.compile file "stylesheet1.xsl" }

             open processor as xslt.writer with stylesheet into file "input1.out"
             using output as processor
                submit file "input1.xml"
             close s

          find ("</" | "<")  => start-marker
                letter+      => element-name
                ("/>" | ">") => end-marker
             output start-marker || "ug" % element-name || end-marker

If the stylesheet is being applied only once, there is no need to declare a shelf of type stylesheet. OmniMark can convert a stream representation of the stylesheet into the appropriate format. The above example can then be modified to read

          open processor as xslt.writer with file "stylesheet1.xsl" into file "input1.out"

Other Library Functions    xslt.compile    xslt.omxslt-version    xslt.reader    xslt.stylesheet    xslt.writer

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