searching for PUA characters

[Lorna Priest]

The recent discussion on PUA characters reminded me of a question I've 
had. I am wondering if anyone has a tool whereby we could search for all 
documents on a local computer (or server) that use PUA codepoints. I 
suppose what I'd like is to be able to identify beginning and ending 
codepoints to search for, such as "F130..F32F" or something along that 
line.

SIL has a corporate PUA, however many (most) of the characters are now 
in Unicode and I'd like to be able to help people identify which 
documents need converting to the official USVs.

Lorna Priest