better yesno function

2019-01-02 14:22:28 +11:00 · 2019-01-02 14:22:28 +11:00 · 52ace7f214
parent 21688e4fd9
commit 52ace7f214
1 changed files with 4 additions and 3 deletions
--- a/7
+++ b/7
@ -563,13 +563,14 @@ edit_config () {
 }

 yesno () {
-  printf "%s [yN]" "$1"
-  read -r yn
+  old_stty_cfg=$(stty -g)
+  stty raw -echo
+  yn=$(while ! head -c 1 | grep -i '[ny]'; do true; done)
+  stty "$old_stty_cfg"
  case $yn in
    y ) result=0 ;;
    * ) result=1 ;;
  esac
-  printf "\n"
  return $result
 }