help xml-ifying a script attribute definition ?

[Brent Putman]

On 1/24/12 5:01 PM, Tom Zeller wrote:

> 
> The attribute definition returns the value of returnAttr if the
> sourceAttr contains a string. In other words, if foo =~ bar, return
> cat.
> 


Unless I'm misunderstaing, I think that's pretty much what the Mapped
attribute def does, i.e.

within a ValueMap:
if (sourceAttributeID matches any SourceValue)
  return ReturnValue
else
  return DefaultValue