because its the integrated scripting language in my app. great for setting things in the app and can do things like proc a {} { puts "a"} proc b {} { puts "b"

because its the integrated scripting language in my app. great for setting things in the app and can do things like proc a {} { puts "a"} proc b {} { puts "b"} set c a $c ;# prints a set c b $c ;# prints c