Is it possible to evaluate the elements of an class in whose clause

Scripting Forums AppleScript | Mac OS X
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#1

To achieve something like the following:

tell application "Finder" to get every file of folder (choose folder) where name extension of every files of it is "pdf"
#2

Yes. It’s possible to filter for that, and you were pretty close.

tell application "Finder" to get every file of folder (choose folder) where its name extension = "pdf"
#3

What about something like this

tell application "Address Book"
every person whose values of its one of its emails contains "@gmail.com"
end tell
#4

In addition, how about this sort of filter reference:

tell application "Address Book"
	every person where (count of its emails) is 2
end tell
#5

email is an element of a Person, not a property, so you can’t do that – You’d find them this way:

set doubleEmails to {}
tell application "Address Book"
	set V to value of email of every person
	set N to name of every person
	repeat with k from 1 to count N
		if (count (item k of V)) is 2 then set end of D to item k of N
	end repeat
end tell
#6

So the whose/where clause can only evaluate properties of the object itself, but not properties of its elements, right?