uiipager

#!/bin/sh
# read <http://www.gnu.org/software/termutils/manual/termutils-2.0/html_chapter/tput_1.html#SEC8>
echo "USAGE: $0 OUTFILE INFILE HIGHLIGHT PROMPT"
test -n "$1" && test -n "$2" && test -e "$1" && test -e "$2" || exit 1;
trap "kill 0" 0 1 2 5 15
BOLD=`tput bold`; RESET=`tput sgr0`; BANNED=`printf "\001-\011\013-\037"`
init () {
    COLS=`tput cols`; LINES=`tput lines`; TAILLINES=`expr $LINES - 2`
    TAILAREA=`expr "$COLS" \* "$TAILLINES"`; FOOTER=`tput rev; \
        printf "%${COLS}s"; tput cr; tput sgr0`
}; init; tput clear; tput cup "$LINES" 0
tput hs && echo `tput tsl`"$5"`tput fsl`;
redraw() {
    tput sc; tput home; printf "%${TAILAREA}s"; tput home;
    tail -n "$TAILLINES" "$1" | tr -d "$BANNED" | fold -sw "$COLS" | \
        sed -e "$ s/\(^\|\s\|\$\)\($3\)/\1$BOLD\2\a$RESET/gi" \
            -e "s/\(^\|\s\|\$\)\($3\)/\1$BOLD\2$RESET/gi" | \
        tail -n "$TAILLINES"
    echo "$FOOTER"; tput rc;
}
(while true; do
    trap 'init' 28; redraw "$1" "$2" "$3"; inotifywait "$1" -e MODIFY -qq;
done) &
rlwrap -i -p'0;37' -r -S "$4 " cat >> "$2" 2>/dev/null