Aw: Re: Re: [xsl] passing a function as a parameter to transform()

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

The parameter passing needs to use the URI of the namespace
xmlns:local="data:,dpc" e.g.QName('data:,dpc','functionname&# 39;)

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gesendet.Am 14.05.21, 15:06 schrieb "Graydon graydon@xxxxxxxxx"
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>:

  On Fri, May 14, 2021 at 12:39:53PM -0000, Martin Honnen
  martin.honnen@xxxxxx scripsit:
  > Use $local:function

  Progress!

  If I invoke the passed-as-a-parameter function as

  <xsl:sequence select="$local:tiny('away')" />

  in the stylesheet called by transform(), it changes the error.

  <xsl:param as="function(xs:string) as text()" name="local:tiny" />
  now
  returns the error

  Engine name: Saxon-EE 10.3 (External)
  Severity: error
  Description: A value must be supplied for parameter $local:tiny
  because there is no default value for the required type

  oXygen binds the error to the parameter definition in the called
  stylesheet.

  Putting a default value in the select attribute via an anonymous
  function appears to override the passed-in function. It also gets
  impractically complex for a non-toy-example function, so that can't
  be
  right.

  required="no" does not help. Removing the "as" attribute changes the
  error to:

  The required item type of the target of the dynamic function call is
  function(*); the supplied value "" is an atomic value

  so I conclude that I can't have the param rely on the definition of
  whatever function gets passed to it.

  Trying to search for "function parameter" gets the parameters of
  functions, rather than this case, so I haven't been able to find an
  example.

  Thank you! being able to change the error produces hope.

  --
  Graydon Saunders | graydonish@xxxxxxxxx
  CC&s oferC)ode, C0isses swC! mC&g.
  -- Deor ("That passed, so may this.")

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