emacs-prelude/modules/prelude-programming.el

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;;; prelude-programming.el --- Emacs Prelude: prog-mode configuration
;;
;; Copyright (c) 2011-2012 Bozhidar Batsov
;;
;; Author: Bozhidar Batsov <bozhidar@batsov.com>
;; URL: http://batsov.com/emacs-prelude
;; Version: 1.0.0
;; Keywords: convenience
;; Package-Requires: ((guru-mode "0.1"))
;; This file is not part of GNU Emacs.
;;; Commentary:
;; Some basic prog-mode configuration and programming related utilities.
;;; License:
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License
;; as published by the Free Software Foundation; either version 3
;; of the License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Code:
(defun prelude-ido-goto-symbol (&optional symbol-list)
"Refresh imenu and jump to a place in the buffer using Ido."
(interactive)
(unless (featurep 'imenu)
(require 'imenu nil t))
(cond
((not symbol-list)
(let ((ido-mode ido-mode)
(ido-enable-flex-matching
(if (boundp 'ido-enable-flex-matching)
ido-enable-flex-matching t))
name-and-pos symbol-names position)
(unless ido-mode
(ido-mode 1)
(setq ido-enable-flex-matching t))
(while (progn
(imenu--cleanup)
(setq imenu--index-alist nil)
(prelude-ido-goto-symbol (imenu--make-index-alist))
(setq selected-symbol
(ido-completing-read "Symbol? " symbol-names))
(string= (car imenu--rescan-item) selected-symbol)))
(unless (and (boundp 'mark-active) mark-active)
(push-mark nil t nil))
(setq position (cdr (assoc selected-symbol name-and-pos)))
(cond
((overlayp position)
(goto-char (overlay-start position)))
(t
(goto-char position)))))
((listp symbol-list)
(dolist (symbol symbol-list)
(let (name position)
(cond
((and (listp symbol) (imenu--subalist-p symbol))
(prelude-ido-goto-symbol symbol))
((listp symbol)
(setq name (car symbol))
(setq position (cdr symbol)))
((stringp symbol)
(setq name symbol)
(setq position
(get-text-property 1 'org-imenu-marker symbol))))
(unless (or (null position) (null name)
(string= (car imenu--rescan-item) name))
(add-to-list 'symbol-names name)
(add-to-list 'name-and-pos (cons name position))))))))
;; add a shortcut for prelude-ido-goto-symbol
(eval-after-load 'prelude-mode
'(define-key prelude-mode-map (kbd "C-c i") 'prelude-ido-goto-symbol))
(defun prelude-local-comment-auto-fill ()
(set (make-local-variable 'comment-auto-fill-only-comments) t))
(defun prelude-add-watchwords ()
(font-lock-add-keywords
nil '(("\\<\\(FIX\\|TODO\\|FIXME\\|HACK\\|REFACTOR\\):"
1 font-lock-warning-face t))))
;; show the name of the current function definition in the modeline
(require 'which-func)
(which-function-mode 1)
;; in Emacs 24 programming major modes generally derive from a common
;; mode named prog-mode; for others, we'll arrange for our mode
;; defaults function to run prelude-prog-mode-hook directly. To
;; augment and/or counteract these defaults your own function
;; to prelude-prog-mode-hook, using:
;;
;; (add-hook 'prelude-prog-mode-hook 'my-prog-mode-defaults t)
;;
;; (the final optional t sets the *append* argument)
(defun prelude-prog-mode-defaults ()
"Default coding hook, useful with any programming language."
(when (and (executable-find ispell-program-name)
prelude-flyspell)
(flyspell-prog-mode))
(when prelude-guru
(guru-mode +1))
(when prelude-whitespace
(whitespace-mode +1))
(prelude-local-comment-auto-fill)
(prelude-add-watchwords)
;; keep the whitespace decent all the time (in this buffer)
(add-hook 'before-save-hook 'whitespace-cleanup nil t))
(setq prelude-prog-mode-hook 'prelude-prog-mode-defaults)
(add-hook 'prog-mode-hook (lambda ()
(run-hooks 'prelude-prog-mode-hook)))
(provide 'prelude-programming)
;;; prelude-programming.el ends here