Applescript - Escaping double quotes around variable text

string_escaping.applescript

set myString to "This is a \"quoted\" text."

Sample usgage:

on run {input, parameters}
	
	set filename to item 1 of input
	set desc to "\"" & item 2 of input & "\""
	
	--display dialog filename & desc
	
	(* Your script goes here *)
	do shell script "/usr/local/bin/gist -P -f " & filename & " -e -d " & desc
	--return input
end run