Getting list of props from a prop list?

Question

I need to loop through the properties in a property list. The
prop list is built dynamically so I don’t know what’s
in the list before I start. Is there a direct way of getting a list
of properties out of a property list? I suppose I could build a
linear list of property names at the same time I’m building
the actual property list but I would like to do this with just one
list if possible. The following example won’t work, but it
gives you an idea of what I’d like to do:
myTransportList = [#walk : ”free”, #car :
”expensive”, #plane : ”very expensive”]
repeat with myTransportType in myTransportList
myCost = myTransportList[symbol(myTransportType)]
end repeat
Thanks,
- Bob Gallo

Answer 1

How about a simple function that takes a propertyList as a
parameter and
returns a list of the proerties found in the list? That way
you don't have
to maintain a seperate list. You can just call your function
when needed?
on getListProps thePropList
returnList = []
repeat with i = 1 to thePropList.count
returnList.add(thePropList.getPropAt(i))
end repeat
return returnList
end