|
|
- ;;; cider-scratch.el --- *scratch* buffer for Clojure -*- lexical-binding: t -*-
-
- ;; Copyright © 2014-2019 Bozhidar Batsov and CIDER contributors
- ;;
- ;; Author: Tim King <kingtim@gmail.com>
- ;; Phil Hagelberg <technomancy@gmail.com>
- ;; Bozhidar Batsov <bozhidar@batsov.com>
- ;; Artur Malabarba <bruce.connor.am@gmail.com>
- ;; Hugo Duncan <hugo@hugoduncan.org>
- ;; Steve Purcell <steve@sanityinc.com>
-
- ;; 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 this program. If not, see <http://www.gnu.org/licenses/>.
-
- ;; This file is not part of GNU Emacs.
-
- ;;; Commentary:
-
- ;; Imitate Emacs's *scratch* buffer.
-
- ;;; Code:
-
- (require 'cider-eval)
- (require 'clojure-mode)
- (require 'easymenu)
-
- (defcustom cider-scratch-initial-message
- ";; This buffer is for Clojure experiments and evaluation.\n
- ;; Press C-j to evaluate the last expression.\n
- ;; You can also press C-u C-j to evaluate the expression and pretty-print its result.\n\n"
- "The initial message displayed in new scratch buffers."
- :type 'string
- :group 'cider
- :package-version '(cider . "0.18.0"))
-
- (defvar cider-clojure-interaction-mode-map
- (let ((map (make-sparse-keymap)))
- (set-keymap-parent map clojure-mode-map)
- (define-key map (kbd "C-j") #'cider-eval-print-last-sexp)
- (define-key map [remap paredit-newline] #'cider-eval-print-last-sexp)
- (easy-menu-define cider-clojure-interaction-mode-menu map
- "Menu for Clojure Interaction mode"
- '("Clojure Interaction"
- (["Eval and print last sexp" #'cider-eval-print-last-sexp]
- "--"
- ["Reset" #'cider-scratch-reset])))
- map))
-
- (defconst cider-scratch-buffer-name "*cider-scratch*")
-
- ;;;###autoload
- (defun cider-scratch ()
- "Go to the scratch buffer named `cider-scratch-buffer-name'."
- (interactive)
- (pop-to-buffer (cider-scratch-find-or-create-buffer)))
-
- (defun cider-scratch-find-or-create-buffer ()
- "Find or create the scratch buffer."
- (or (get-buffer cider-scratch-buffer-name)
- (cider-scratch--create-buffer)))
-
- (define-derived-mode cider-clojure-interaction-mode clojure-mode "Clojure Interaction"
- "Major mode for typing and evaluating Clojure forms.
- Like clojure-mode except that \\[cider-eval-print-last-sexp] evals the Lisp expression
- before point, and prints its value into the buffer, advancing point.
-
- \\{cider-clojure-interaction-mode-map}"
- (setq-local sesman-system 'CIDER))
-
- (defun cider-scratch--insert-welcome-message ()
- "Insert the welcome message for the scratch buffer."
- (insert cider-scratch-initial-message))
-
- (defun cider-scratch--create-buffer ()
- "Create a new scratch buffer."
- (with-current-buffer (get-buffer-create cider-scratch-buffer-name)
- (cider-clojure-interaction-mode)
- (cider-scratch--insert-welcome-message)
- (current-buffer)))
-
- (defun cider-scratch-reset ()
- "Reset the current scratch buffer."
- (interactive)
- (erase-buffer)
- (cider-scratch--insert-welcome-message))
-
- (provide 'cider-scratch)
-
- ;;; cider-scratch.el ends here
|
