alias charlist {
var %x 1
while (%x < 256) {
echo -s chr %x is: $chr(%x)
inc %x
}
}

Just type /charlist anywhere and it will display all the $chr's in the status window in this format:

chr 38 is: &
chr 39 is: '
chr 40 is: (
chr 41 is: )

Starting from 1 to 255