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;;; starter-kit-lisp.el --- Some helpful Lisp code
;;
;; Part of the Emacs Starter Kit

(define-key read-expression-map (kbd "TAB") 'lisp-complete-symbol)
(define-key lisp-mode-shared-map (kbd "C-c l") "lambda")
(define-key lisp-mode-shared-map (kbd "RET") 'reindent-then-newline-and-indent)
(define-key lisp-mode-shared-map (kbd "C-\\") 'lisp-complete-symbol)
(define-key lisp-mode-shared-map (kbd "C-c v") 'eval-buffer)

(defface esk-paren-face
   '((((class color) (background dark))
      (:foreground "grey50"))
     (((class color) (background light))
      (:foreground "grey55")))
   "Face used to dim parentheses."
   :group 'starter-kit-faces)

;;; Emacs Lisp

(add-hook 'emacs-lisp-mode-hook 'turn-on-eldoc-mode)
(add-hook 'emacs-lisp-mode-hook 'esk-remove-elc-on-save)

(defun esk-remove-elc-on-save ()
  "If you're saving an elisp file, likely the .elc is no longer valid."
  (make-local-variable 'after-save-hook)
  (add-hook 'after-save-hook
            (lambda ()
              (if (file-exists-p (concat buffer-file-name "c"))
                  (delete-file (concat buffer-file-name "c"))))))

(define-key emacs-lisp-mode-map (kbd "M-.") 'find-function-at-point)

;;; Clojure

(eval-after-load 'find-file-in-project
  '(add-to-list 'ffip-patterns "*.clj"))

(defun clojure-project ()
  (interactive)
  (message "Deprecated in favour of M-x swank-clojure-project. Install swank-clojure from ELPA."))

;;; Enhance Lisp Modes

(eval-after-load 'paredit
  ;; need a binding that works in the terminal
  '(define-key paredit-mode-map (kbd "M-)") 'paredit-forward-slurp-sexp))

(dolist (x '(scheme emacs-lisp lisp clojure))
  (when window-system
    (font-lock-add-keywords
     (intern (concat (symbol-name x) "-mode"))
     '(("(\\|)" . 'esk-paren-face))))
  (add-hook
   (intern (concat (symbol-name x) "-mode-hook")) 'turn-on-paredit)
  (add-hook
   (intern (concat (symbol-name x) "-mode-hook")) 'run-coding-hook))

(eval-after-load 'clojure-mode
  '(font-lock-add-keywords
    'clojure-mode `(("(\\(fn\\>\\)"
                     (0 (progn (compose-region (match-beginning 1)
                                               (match-end 1) "ƒ")
                               nil))))))

(eval-after-load 'slime
  '(define-key slime-mode-map (kbd "C-c p")
     'slime-pprint-eval-last-expression))

(eval-after-load 'slime-repl
  '(define-key slime-repl-mode-map (kbd "C-c p")
     'slime-pprint-eval-last-expression))

(provide 'starter-kit-lisp)
;; starter-kit-lisp.el ends here
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