Dummy example of using fzf with GNU readline in Bash

fzf-and-readline.sh

  fzfsimple () {
      local out
      
      out=$(echo -e 'pim\npam\npum' | fzf )
      
      # Append to current line.
      READLINE_LINE="${READLINE_LINE}${out}"
      # Optional: move cursor to end of line. 
      READLINE_POINT=${#READLINE_LINE}
  }
  
  fzfdemo () {
      local out
  
      out=$(echo -e 'pim\npam\npum' | fzf )
  
      # Insert into current line.
      pre="${READLINE_LINE:0:$READLINE_POINT}"
      post="${READLINE_LINE:$READLINE_POINT}"
      
      READLINE_LINE="${pre}${out}${post}"
      READLINE_POINT=$(( ${#pre} + ${#out} ))
  }
  
  # Bind to 'Alt+0' and 'Alt+1'.
  bind -x '"\e0":"fzfsimple"'
  bind -x '"\e1":"fzfdemo"'