Re: [xsl] conditional declaretion of a variable

[David Carlisle <davidc@xxxxxxxxx>]

  <xsl:when test="@valueField">
    <xsl:variable name="valueField" select="@valueField" />
  </xsl:when>

that does work but the scope of a variable binding is its containing
element, which is xsl:when in this case, so you could have used that
variable later in the when clause but it can not be used outside that
xsl:when.

You don't conditionally want to assign a variable, you want to
definitely assign a variable, to a value that depends on a condition.
So the more natural (and legal) way is

<xsl:variable name="valueField" select="@valueField|@field[not(@valueField)]"/>

David

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