So you've just written a new macro for your Clojure DSL, and now you have something like:
(defwidget my-widget
...)And you'd love to add syntax highlighting to Emacs so that it gets highlighted the way defn and defmacro do. Here are the magic words:
;;; Adds new defn-esque keyword highlighting.
(add-hook 'clojure-mode-hook
'(lambda ()
(font-lock-add-keywords
nil
'(("(\\(defwidget\\)\\s-+\\(\\w+\\)"
(1 font-lock-keyword-face)
(2 font-lock-function-name-face))))))What's going on here? Well, let's break it down:
;;; Add a function that runs for any Clojure buffer.
(add-hook 'clojure-mode-hook
;; An anonymous function that takes no arguments.
'(lambda ()
;; Set some new syntax-highlighting rules.
(font-lock-add-keywords nil
;; So many escape codes! But we're really just saying:
;; Match the '(' character.
;; Match and group the string 'defwidget'.
;; Match some whitespace. \\s-+
;; Match and group some word characters. \\w+
'(("(\\(defwidget\\)\\s-+\\(\\w+\\)"
;; The first regexp group is a keyword.
(1 font-lock-keyword-face)
;; The second regexp group is a name.
(2 font-lock-function-name-face)
))))) ; Close up the patient.