code / bb

   1 #!/bin/sh
   2 # A simple user-input asker. Result is output to stdout.
   3 #    Usage: ask [-1] [prompt [initial query]]
   4 if [ "$1" = '-1' ]; then
   5     # Get one character of input
   6     tput civis >/dev/tty;
   7     printf '\033[1m%s\033[0m' "$2" >/dev/tty;
   8     stty -icanon -echo >/dev/tty 2>/dev/tty;
   9     if [ "$(uname)" = "Darwin" ]; then
  10         read -n 1 REPLY </dev/tty >/dev/tty;
  11         echo $REPLY
  12     else
  13         dd bs=1 count=1 2>/dev/null </dev/tty
  14     fi
  15     stty icanon echo >/dev/tty 2>/dev/tty
  16     tput cvvis >/dev/tty
  17     true
  18 else
  19     # Get a line of input
  20     if command -v ask >/dev/null; then
  21         ask --history=bb.hist --prompt="$(printf '%s\033[?25h' "$1")" --query="$2"
  22     else
  23         printf "\033[1m%s\033[0m" "$1" >/dev/tty
  24         tput cvvis >/dev/tty
  25         if [ "$(uname)" = "Darwin" ]; then
  26             read -e REPLY </dev/tty >/dev/tty
  27         else
  28             read -r REPLY </dev/tty >/dev/tty
  29         fi
  30         echo $REPLY
  31     fi
  32 fi