typeset -g -A key
key[Backspace]='^?'
key[CtrlBackspace]='^H'
key[Insert]='^[[2~'
key[Delete]='^[[3~'
key[Home]='^[[H'
key[End]='^[[F'
key[PageUp]='^[[5~'
key[PageDown]='^[[6~'
key[Up]='^[[A'
key[Left]='^[[D'
key[Down]='^[[B'
key[Right]='^[[C'
key[CtrlUp]='^[[1;5A'
key[CtrlDown]='^[[1;5B'
key[CtrlRight]='^[[1;5C'
key[CtrlLeft]='^[[1;5D'