[Fix #371] Add : to the list of forbidden 1st-chars for symbols

Author: Malabarba

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## master (unreleased)
 
+### Bugs fixed
+
+* [#371](https://github.com/clojure-emacs/clojure-mode/issues/371): Don't font-lock `:foo/def` like a `def` form.
+
 ### New features
 
 * [#370](https://github.com/clojure-emacs/clojure-mode/issues/370): Warn the user if they seem to have activated the wrong major-mode.

clojure-mode.el

@@ -489,7 +489,7 @@ Called by `imenu--generic-function'."
   (defconst clojure--sym-forbidden-rest-chars "][\";\'@\\^`~\(\)\{\}\\,\s\t\n\r"
     "A list of chars that a Clojure symbol cannot contain.
 See definition of 'macros': URL `http://git.io/vRGLD'.")
-  (defconst clojure--sym-forbidden-1st-chars (concat clojure--sym-forbidden-rest-chars "0-9")
+  (defconst clojure--sym-forbidden-1st-chars (concat clojure--sym-forbidden-rest-chars "0-9:")
     "A list of chars that a Clojure symbol cannot start with.
 See the for-loop: URL `http://git.io/vRGTj' lines: URL
 `http://git.io/vRGIh', URL `http://git.io/vRGLE' and value