+;; constants
+;; (defconst root-dir "~/Private/blog/")
+(defconst root-dir (file-name-directory (or load-file-name buffer-file-name)))
+(defconst publish-dir (concat root-dir "_site/"))
+(defconst res-dir (concat root-dir "res/"))
+(defconst css-file (concat res-dir "worg.css"))