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;;; erc-yank --- Automagically create a Gist if pasting more than 5 lines
;; Copyright (C) 2012 John Wiegley
;; Author: John Wiegley <>
;; Created: 17 Jun 2012
;; Version: 1.0
;; Keywords: erc yank gist
;; X-URL:
;; 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 2, 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
;; 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., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; Automagically create a Gist if pasting more than 5 lines.
;; Hook in as follows:
;; (add-hook 'erc-mode-hook
;; (lambda () (define-key erc-mode-map [(control ?y)] 'erc-yank)))
;; Or, if you want to use my `use-package' macro:
;; (use-package erc
;; :commands erc
;; :config
;; (use-package erc-yank
;; :init
;; (bind-key "C-y" 'erc-yank erc-mode-map)))
;; This module requires gist.el, from:
;;; Code:
(require 'gist)
(defgroup erc-yank nil
"Automagically create a Gist if pasting more than 5 lines"
:group 'erc)
(defcustom erc-yank-flood-limit 5
"Maximum number of lines allowed to yank to an erc buffer."
:type 'integer
:group 'erc-yank)
(defcustom erc-yank-query-before-gisting t
"If non-nil, ask the user before creating a new Gist."
:type 'boolean
:group 'erc-yank)
(defcustom erc-yank-display-text-on-prompt t
"If non-nil, show the text to yank in another buffer when prompting."
:type 'boolean
:group 'erc-yank)
(defun erc-yank (&optional arg)
"Yank or make a gist depending on the size of the yanked text."
(interactive "*P")
(let* ((kill-text (current-kill (cond
((listp arg) 0)
((eq arg '-) -2)
(t (1- arg)))))
(lines (length (split-string kill-text "\n"))))
(if (and (> lines erc-yank-flood-limit)
(or (not erc-yank-query-before-gisting)
(let ((query
(format (concat "Text to yank is %d lines;"
" create a Gist instead? ") lines)))
(if erc-yank-display-text-on-prompt
(with-current-buffer (get-buffer-create "*Yank*")
(delete-region (point-min) (point-max))
(insert kill-text)
(goto-char (point-min))
(display-buffer (current-buffer))
(get-buffer-window (current-buffer)))
(y-or-n-p query)
(kill-buffer (current-buffer)))))
(y-or-n-p query)))))
(let ((buf (current-buffer)))
(insert kill-text)
(gist-region (point-min) (point-max) nil
`(lambda (gist)
(with-current-buffer ,buf
(insert (oref gist :html-url)))))))
(yank arg))))
(provide 'erc-yank)
;;; erc-yank.el ends here
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