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|
#!/bin/sh
entered_text=""
text="the quick brown fox jumps over the lazy dog"
tty_init () {
tput clear
export SAVED_TTY_SETTINGS=$(stty -g)
stty raw -echo
trap typr_cleanup 1 2 3 6
printf "[3 q[0;0H"
}
tty_cleanup () {
tput clear
stty $SAVED_TTY_SETTINGS
}
tty_readc () {
stty -echo -icanon min 1 time 0
s="$(dd bs=1 count=1 of=/dev/stdout 2>/dev/null)"
stty -icanon min 0 time 0
[ "$s" = "" ] && {
s="$s$(dd bs=1 count=2 of=/dev/stdout 2>/dev/null)"
}
printf "$s"
}
typr_draw_text () {
tput civis
tput clear
printf "[0;0H"
t="$text"
e="$entered_text"
while [ "$t" ] ; do
ct=${t%${t#?}}
ce=${e%${e#?}}
t="${t#?}"
e="${e#?}"
[ "$ct" = "$ce" ] \
&& printf "[0;32m" \
|| {
[ "$e" ] \
&& printf "[0;31m" \
|| printf "[0;37m"
}
printf "$ct"
done
printf "[1;$((${#entered_text} + 1))H"
tput cnorm
}
typr_main () {
while true; do
typr_draw_text
c="$(tty_readc)"
case "$c" in
'
') break;;
'')
entered_text="${entered_text%?}"
;;
*)
echo "$c" >> LOG
entered_text="$entered_text$c"
;;
esac
done
}
typr_init () {
tty_init
typr_main
tty_cleanup
}
typr_init
|
