uniformizing shell config

zsh/profile

@@ -1,4 +1,14 @@
+# zprofile, called for login shells
+
+# dotfiles locations
+DOTFILES_HOME_DIR="$(cd -P "$(dirname "$(readlink ~/.zprofile)")" && pwd)"
+DOTFILES_ROOT_DIR="$( dirname "$DOTFILES_HOME_DIR" )"
+DOTFILES_ZSH_DIR="$DOTFILES_ROOT_DIR/zsh"
+
 emulate sh
-. ~/.profile
+source ~/.profile
 emulate zsh
 
+# zshrc will be called automatically for interactive shells
+
+# vim: ft=zsh

zsh/rc

@@ -1,5 +1,6 @@
-# Set up the prompt
+# zshrc, called for interactive shells
 
+# Set up the prompt
 
 # Set terminal title
 set_term_title() {
@@ -139,3 +140,4 @@ chpwd() {
     set_term_title
 }
 
+# vim: ft=zsh