map C-c and C-z in bash

mappings

#!/bin/bash

# map C-c to kill-whole-line like in fish and C-z to fg

saved_stty=$(command stty -g)
stty () {
  local status
  command stty "$@"
  status=$?
  saved_stty=$(command stty -g)
  return "$status"
}

# use a function to avoid calling the DEBUG trap more than once
PROMPT_COMMAND=prompt_command
prompt_command () {
  # other commands here
  undefC-cC-z
}

# use the prompt flag to avoid calling stty several times
# in the DEBUG trap with compound commands
undefC-cC-z () {
  (( ! prompt_flag )) && command stty intr undef susp undef
  prompt_flag=1
}

resetC-cC-z () {
  (( prompt_flag )) && command stty "$saved_stty"
  prompt_flag=0
}

bind '\C-z: "\C-cfg\C-m"' '\C-c: kill-whole-line'
bind -m vi-command '\C-z: "\C-cifg\C-m"'
bind -m vi-move '\C-z: "\C-cifg\C-m"'

# save the last arg in  __ then restore it
trap '__=$_; resetC-cC-z; : "$__"' DEBUG