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;;; wgrep-ack.el --- Writable ack-and-a-half buffer and apply the changes to files
;; Author: Masahiro Hayashi <mhayashi1120@gmail.com>
;; Contributor: Ivan Andrus <darthandrus@gmail.com>
;; Keywords: grep edit extensions
;; Package-Requires: ((wgrep "2.1.1"))
;; URL: http://github.com/mhayashi1120/Emacs-wgrep/raw/master/wgrep-ack.el
;; Emacs: GNU Emacs 22 or later
;; Version: 0.1.3
;; 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, 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.
;;; Commentary:
;; wgrep-ack allows you to edit a ack-and-a-half buffer and apply those
;; changes to the file buffer.
;;; Install:
;; 1. Install ack-and-a-half.el
;;
;; https://github.com/jhelwig/ack-and-a-half
;; 2. Install wgrep.el
;; 3. Put this file into load-path'ed directory, and byte compile it if
;; desired. And put the following expression into your ~/.emacs.
;;
;; (require 'wgrep-ack)
;;; Usage:
;; See wgrep.el
;;; Code:
(require 'wgrep)
;;;###autoload
(defun wgrep-ack-and-a-half-setup ()
;; ack-and-a-half-mode prints a column number too, so we catch that
;; if it exists. Here \2 is a colon + whitespace separator. This
;; might need to change if (caar grep-regexp-alist) does.
(set (make-local-variable 'wgrep-line-file-regexp)
(concat
wgrep-default-line-header-regexp
"\\(?:\\([1-9][0-9]*\\)\\2\\)?"))
(wgrep-setup-internal))
;;;###autoload
(defun wgrep-ack-setup ()
(set (make-local-variable 'wgrep-results-parser)
'wgrep-ack-prepare-command-results)
(wgrep-setup-internal))
(defun wgrep-ack-prepare-command-results ()
(let (fprop fn)
(while (not (eobp))
(cond
((null fn)
;; index of filename
(let ((bol (line-beginning-position))
(eol (line-end-position)))
(when (/= bol eol)
(setq fn (buffer-substring-no-properties bol eol))
(setq fprop (wgrep-construct-filename-property fn))
(put-text-property bol eol fprop fn)
(put-text-property bol eol 'wgrep-ignore t))))
((looking-at "^\\([0-9]+\\)[:-]")
(let ((start (match-beginning 0))
(end (match-end 0))
(line (string-to-number (match-string 1))))
(put-text-property start end 'wgrep-line-filename fn)
(put-text-property start end 'wgrep-line-number line)))
((looking-at "^$")
(setq fn nil)))
(forward-line 1))))
;;;###autoload
(add-hook 'ack-and-a-half-mode-hook 'wgrep-ack-and-a-half-setup)
;;;###autoload
(add-hook 'ack-mode-hook 'wgrep-ack-setup)
;; For `unload-feature'
(defun wgrep-ack-unload-function ()
(remove-hook 'ack-and-a-half-mode-hook 'wgrep-ack-and-a-half-setup)
(remove-hook 'ack-mode-hook 'wgrep-ack-setup))
(provide 'wgrep-ack)
;;; wgrep-ack.el ends here
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