reworked pane / tty introspection (2)

fixed implementation and calls to _root()

.tmux.conf

@@ -497,10 +497,10 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #
 # _pane_info() {
 #   pane_pid="$1"
-#   tty="${2##/dev/}"
+#   pane_tty="${2##/dev/}"
 #   case "$_uname_s" in
 #     *CYGWIN*)
-#       ps -al | tail -n +2 | awk -v pane_pid="$pane_pid" -v tty="$tty" '
+#       ps -al | tail -n +2 | awk -v pane_pid="$pane_pid" -v tty="$pane_tty" '
 #         ((/ssh/ && !/-W/) || !/ssh/) && $5 == tty {
 #           user[$1] = $6; parent[$1] = $2; child[$2] = $1
 #         }
@@ -518,7 +518,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #       '
 #       ;;
 #     *)
-#       ps -t "$tty" -o user=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX -o pid= -o ppid= -o command= | awk -v pane_pid="$pane_pid" '
+#       ps -t "$pane_tty" -o user=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX -o pid= -o ppid= -o command= | awk -v pane_pid="$pane_pid" '
 #         NR > 1 && ((/ssh/ && !/-W/) || !/ssh/) {
 #           user[$2] = $1; parent[$2] = $3; child[$3] = $2; pid=$2; $1 = $2 = $3 = ""; command[pid] = substr($0,4)
 #         }
@@ -549,10 +549,10 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #
 # _username() {
 #   pane_pid=${1:-$(tmux display -p '#{pane_pid}')}
-#   tty=${2:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
+#   pane_tty=${2:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
 #   ssh_only=$3
 #
-#   pane_info=$(_pane_info "$pane_pid" "$tty")
+#   pane_info=$(_pane_info "$pane_pid" "$pane_tty")
 #   command=${pane_info#*:}
 #   command=${command#*:}
 #
@@ -574,12 +574,12 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #
 # _hostname() {
 #   pane_pid=${1:-$(tmux display -p '#{pane_pid}')}
-#   tty=${2:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
+#   pane_tty=${2:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
 #   ssh_only=$3
 #   full=$4
 #   h_or_H=$5
 #
-#   pane_info=$(_pane_info "$pane_pid" "$tty")
+#   pane_info=$(_pane_info "$pane_pid" "$pane_tty")
 #   command=${pane_info#*:}
 #   command=${command#*:}
 #
@@ -610,10 +610,11 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 # }
 #
 # _root() {
-#   tty=${1:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
-#   root=$2
+#   pane_pid=${1:-$(tmux display -p '#{pane_pid}')}
+#   pane_tty=${2:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
+#   root=$3
 #
-#   username=$(_username "$tty" false)
+#   username=$(_username "$pane_id" "$pane_tty" false)
 #
 #   [ x"$username" = x"root" ] && echo "$root"
 # }
@@ -668,10 +669,10 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #
 # _split_window_ssh() {
 #   pane_pid=${1:-$(tmux display -p '#{pane_pid}')}
-#   tty=${2:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
+#   pane_tty=${2:-$(tmux display -p '#{s,/dev/,,:pane_tty}')}
 #   shift
 #
-#   pane_info=$(_pane_info "$pane_pid" "$tty")
+#   pane_info=$(_pane_info "$pane_pid" "$pane_tty")
 #   command=${pane_info#*:}
 #   command=${command#*:}
 #
@@ -1030,7 +1031,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #         -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#{?#{==:#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_pid} #{s,/dev/,,:pane_tty} #D),root},$tmux_conf_theme_root,}#[inherit]%g")
 #     else
 #       status_left=$(echo "$status_left" | sed \
-#         -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{s,/dev/,,:pane_tty} $tmux_conf_theme_root #D)#[inherit]%g")
+#         -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{pane_pid} #{s,/dev/,,:pane_tty} $tmux_conf_theme_root #D)#[inherit]%g")
 #     fi
 #
 #     status_left=$(printf '%s' "$status_left" | awk \
@@ -1113,12 +1114,12 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #       -e "s%#{synchronized}%#[fg=$tmux_conf_theme_synchronized_fg]#[bg=$tmux_conf_theme_synchronized_bg]#[$tmux_conf_theme_synchronized_attr]#{?pane_synchronized,$tmux_conf_theme_synchronized ,}%g" \
 #       -e 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled #S)%g')
 #
-#     if [ -n "$(tmux display -p '#{version}')" ]; then
+#     if [ -z "$(tmux display -p '#{version}')" ]; then
 #       status_right=$(echo "$status_right" | sed \
 #         -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#{?#{==:#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_pid} #{s,/dev/,,:pane_tty} #D),root},$tmux_conf_theme_root,}#[inherit]%g")
 #     else
 #       status_right=$(echo "$status_right" | sed \
-#         -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{s,/dev/,,:pane_tty} $tmux_conf_theme_root #D)#[inherit]%g")
+#         -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{pane_pid} #{s,/dev/,,:pane_tty} $tmux_conf_theme_root #D)#[inherit]%g")
 #     fi
 #
 #     status_right=$(printf '%s' "$status_right" | awk \