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|
#!/bin/bash
BASH_ARGV0=write-tty
echo -n "$0" >/proc/$BASHPID/comm
output_filter()
{
tokenize | colorize | soft_cursor
}
chr()
{
declare -i n="$*"
printf "\\$(printf %o "$n")"
}
colorize()
{
BASH_ARGV0=colorize
echo -n "$0" >/proc/$BASHPID/comm
while read -r
do
case "$REPLY" in
\\[0-7][0-7][0-7] ) ;;
* )
printf '%s\n' "$REPLY"
continue
;;
esac
declare -i c=8#"${REPLY#?}"
if (( c > 128 + 127 ))
then
:
elif (( c > 128 + 32 ))
then
printf -v REPLY "M-$(chr c - 128)"
elif (( c > 127 ))
then
printf -v REPLY "M-^$(chr c - 128 + 64)"
elif (( c < 32 ))
then
printf -v REPLY "^$(chr c + 64)"
fi
printf $'\e[106m%s\e[m\n' "$REPLY"
done
}
tokenize()
{
BASH_ARGV0=tokenize
echo -n "$0" >/proc/$BASHPID/comm
while read -r -N1
do
if [[ "$REPLY" =~ [[:print:]] ]]
then
# Output one printable character per line. It may be a
# multibyte unicode character.
printf '%s\n' "$REPLY"
continue
else
# If it is a non-printable, then we output a
# multi-character line. In this case we colorize it
# later so that it won't be confused with multiple
# printable characters in the .
printf '\\%.3o\n' "'$REPLY"
continue
fi
done
}
soft_cursor()
{
BASH_ARGV0=soft_cursor
echo -n "$0" >/proc/$BASHPID/comm
FMT=$'%s \b\e[%sm \e[m\b'
REPLY=
color=101
while printf "$FMT" "$REPLY" "$color"
do
read -r || break
let '++color <= 105' || color=101
done
}
if [ -t 1 ]
then
output_filter
else
exec -a write-tty-raw socat - -
fi
|
