assign:variable

Evaluates an XPath expression and stores it in (= assigns it to) a named variable. The variable is global: from any later script section, you can refer to its value by writing $variable. If a variable by the same name is already in use, the value it currently holds is silently overwritten.

This directive is the same as pc:assign-var except that it is an XML attribute rather than an XML element.

Syntax

The required variable identifies the variable by name and the required expr is the value you provide for the variable. Expr may be submitted either as a literal or as an XPath expression presented as an attribute value template, ie., surrounded by curly braces ( { } ).

Example

This example executes a script ( ... ) for each of the "computer" elements found.

In each interation, the "name" attribute of "computer" is assigned to a variable called "result". This variable value may be referred to as $result.

<pc:each
   select="env/computers/computer"
   assign:result="@name"

   ...

/>

Note

In directives dedicated to assigning values to variables, the assign: namespace prefix is NOT used:

<pc:assign-var
workingdir="{directories:Get()}"
servername="{path:GetFileName(directories:Get())}" >