How do I escape a slash in AppleScript? The documentation seems to suggest that
set target_string to "\\"
should return a single \, but in fact it returns \\\\. On the other hand,
set target_string to "\"
gives an error. I've tried this on Mac OS X v10.6 (Snow Leopard) and older versions of Mac OS X.

set target_string to "\\"returns a single \ for me on Snow Leopard (10.6.4) – ghoppe Jul 28 '10 at 15:48