Revert "Simplified _agkozak_prompt_dirtrim() logic"

This reverts commit 0b0245e.

Author: agkozak

agkozak-zsh-theme.plugin.zsh

@@ -95,11 +95,12 @@ _agkozak_prompt_dirtrim() {
   [[ $1 -ge 1 ]] || set 2
   local abbreviated_path
   case $PWD in
+    $HOME) print -n '~' ;;  # For TrueOS
     $HOME*)
-      abbreviated_path=$(print -Pn "%($(($1 + ${#HOME//[^\/]/}-1))~|~/.../%$1~|%~)")
+      abbreviated_path=$(print -Pn "%($(($1 + 2))~|~/.../%${1}~|%~)")
       ;;
     *)
-      abbreviated_path=$(print -Pn "%($(($1 + 1))~|.../%$1~|%~)")
+      abbreviated_path=$(print -Pn "%($(($1 + 1))~|.../%${1}~|%~)")
       ;;
   esac
   print -n "$abbreviated_path"