parsing title for target monitor instead of following part_strut spec

alt-strut-handling.sh

#!/bin/bash
getrootgeo() {
    xwininfo -root | awk '$1 ~ /-geometry/{
        split($2, a, "[x+-]", s);
        printf("%d\n%d\n",a[1],a[2]);
        printf("%s%d\n%s%d\n",s[2],a[3],s[3],a[4]);'
}
getbspwminfo() {
    < <(bspc wm -d) \
    jq -r --arg m "$1" '
        .monitors[] | select(.name == $m) |
        (.rectangle | .height, .y), (.padding | .top, .bottom)'
}
strut2padding() {
    declare -a strut mon_info root_geo
    local a d
    a="$(xprop -id $wid _NET_WM_STRUT_PARTIAL)"
    [[ "$a" =~ "not found."$ ]] && return 1
    IFS=',' read -ra strut <<<"${a/_NET_WM_STRUT_PARTIAL(CARDINAL) =/}"
    readarray -t mon_info < <(getbspwminfo "$1")
    for a in 2 3; do
        (( strut[$a] == 0 )) && continue
        case "$a" in
            2)
                d=$(( strut[2] - mon_info[1] ))
                d=$(( mon_info[2] < 0 ? d + mon_info[2] : ( d > mon_info[2] ? d : mon_info[2] ) ))
                [[ "$d" != "${mon_info[2]}" ]] && bspc config -m "$1" top_padding "$d"
                ;;
            3)
                root_geo=( $(getrootgeo) )
                d=$(( (mon_info[1] + mon_info[0]) - root_geo[1] + strut[3] ))
                d=$(( mon_info[3] < 0 ? d + mon_info[3] : (d > mon_info[3] ? d : mon_info[3]) ))
                [[ "$d" != "${mon_info[3]}" ]] && bspc config -m "$1" bottom_padding "$d"
                ;;
        esac
    done
}
wid=$1 class=$2 instance=$3

case "${class}:${instance}" in
    'Polybar:polybar')
        title="$(xprop -id "$wid" WM_NAME)"
        title="${title/WM_NAME(STRING) = \"/}"
        title="${title::-1}"
        strut2padding "${title##*_}"
        ;;
esac