Add support for directories with spaces

Add support for directories with spaces when launching the
scratchpad-terminal.
NOTE: The exact same command but with 6 backlashes instead of 8 seems to
work just fine. That makes no sense in my head. Either I'm missing
something or there is a bug in the escaping of backslashes in i3.

.config/i3/config

@@ -217,10 +217,12 @@ for_window [class="st-256color" title="^scratchpad-terminal$"] \
 	resize set 1600 900,   \
 	border none,           \
 	move position center
-# hide scratchpad-terminal again when restarting i3
+# Hide scratchpad-terminal again when restarting i3
 exec_always i3-msg '[class="St" title="^scratchpad-terminal$"] scratchpad show'
-# show scratchpad-terminal or create one if none exists
-bindsym $mod+comma exec ~/.config/i3/scratchpad-terminal.sh -s -c st-256color -n scratchpad-terminal -e 'st -d "$(xcwd)"'
+# Show scratchpad-terminal or create one if none exists
+# Pass current working directory of the focused window but escape spaces.
+# Layers of escaping: i3, sh, sed
+bindsym $mod+comma exec /bin/sh -c '~/.config/i3/scratchpad-terminal.sh -s -c st-256color -n scratchpad-terminal -e -- st -d $(xcwd | sed "s/ /\\\\\\\\ /g")'
 # hide scratchpad-terminal indepedent of where the focus sits
 bindsym $mod+Shift+comma exec ~/.config/i3/scratchpad-terminal.sh -h -c st-256color -n scratchpad-terminal
 

.config/i3/scratchpad-terminal.sh

@@ -12,7 +12,11 @@ while getopts "c:e:hn:s" FLAGS; do
         *)  exit 1;;
     esac
 done
-shift $(($OPTIND - 1 ))
+shift $(($OPTIND - 1))
+
+if [ "$COMMAND" = "--" ]; then
+	COMMAND="$@"
+fi
 
 [ -n "$W_CLASS" ] || return 1
 [ -n "$W_NAME" ] || return 1