use poper emacs namespace, move keys to dedicated minor mode

lang/clang.el

@@ -0,0 +1,36 @@
+;;; languages/clang.el --- summary
+;;; Commentary:
+;;; Code:
+
+(require 'icejam-pkg-projectile "$HOME/.emacs.d/pkg/projectile.el")
+(require 'icejam-pkg-ctags "$HOME/.emacs.d/pkg/ctags.el")
+(require 'icejam-pkg-prog-mode "$HOME/.emacs.d/pkg/prog-mode.el")
+
+(defun activate-clang-mode ()
+  "Goodies for editing c files."
+
+  ;; Set column width to 100
+  (column-enforce-n 100)
+
+  ;; Set indentation to 4 chars
+  (if (boundp 'c-basic-offset)
+      (setq-local c-basic-offset 4)
+    (defvar c-basic-offset 4))
+
+  (if (boundp 'c-default-style)
+      (setq-local c-default-style "bsd")
+    (defvar c-default-style "bsd"))
+
+  (add-to-list (make-local-variable 'company-backends)
+               '(company-etags company-yasnippet))
+
+  (setq-local
+   ctags/refresh-command
+   (format
+    "ctags -e -R --languages=C -f %sTAGS %s/*"
+    (projectile-project-root) (projectile-project-root))))
+
+(add-hook 'c-mode-hook 'activate-clang-mode)
+
+(provide 'icejam-lang-clang)
+;;; clang.el ends here