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99 lines
3.4 KiB
99 lines
3.4 KiB
;;; cider-scratch.el --- *scratch* buffer for Clojure -*- lexical-binding: t -*-
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;; Copyright © 2014-2019 Bozhidar Batsov and CIDER contributors
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;;
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;; Author: Tim King <kingtim@gmail.com>
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;; Phil Hagelberg <technomancy@gmail.com>
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;; Bozhidar Batsov <bozhidar@batsov.com>
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;; Artur Malabarba <bruce.connor.am@gmail.com>
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;; Hugo Duncan <hugo@hugoduncan.org>
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;; Steve Purcell <steve@sanityinc.com>
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;; This file is not part of GNU Emacs.
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;;; Commentary:
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;; Imitate Emacs's *scratch* buffer.
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;;; Code:
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(require 'cider-eval)
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(require 'clojure-mode)
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(require 'easymenu)
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(defcustom cider-scratch-initial-message
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";; This buffer is for Clojure experiments and evaluation.\n
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;; Press C-j to evaluate the last expression.\n
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;; You can also press C-u C-j to evaluate the expression and pretty-print its result.\n\n"
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"The initial message displayed in new scratch buffers."
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:type 'string
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:group 'cider
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:package-version '(cider . "0.18.0"))
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(defvar cider-clojure-interaction-mode-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map clojure-mode-map)
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(define-key map (kbd "C-j") #'cider-eval-print-last-sexp)
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(define-key map [remap paredit-newline] #'cider-eval-print-last-sexp)
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(easy-menu-define cider-clojure-interaction-mode-menu map
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"Menu for Clojure Interaction mode"
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'("Clojure Interaction"
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(["Eval and print last sexp" #'cider-eval-print-last-sexp]
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"--"
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["Reset" #'cider-scratch-reset])))
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map))
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(defconst cider-scratch-buffer-name "*cider-scratch*")
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;;;###autoload
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(defun cider-scratch ()
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"Go to the scratch buffer named `cider-scratch-buffer-name'."
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(interactive)
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(pop-to-buffer (cider-scratch-find-or-create-buffer)))
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(defun cider-scratch-find-or-create-buffer ()
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"Find or create the scratch buffer."
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(or (get-buffer cider-scratch-buffer-name)
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(cider-scratch--create-buffer)))
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(define-derived-mode cider-clojure-interaction-mode clojure-mode "Clojure Interaction"
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"Major mode for typing and evaluating Clojure forms.
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Like clojure-mode except that \\[cider-eval-print-last-sexp] evals the Lisp expression
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before point, and prints its value into the buffer, advancing point.
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\\{cider-clojure-interaction-mode-map}"
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(setq-local sesman-system 'CIDER))
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(defun cider-scratch--insert-welcome-message ()
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"Insert the welcome message for the scratch buffer."
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(insert cider-scratch-initial-message))
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(defun cider-scratch--create-buffer ()
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"Create a new scratch buffer."
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(with-current-buffer (get-buffer-create cider-scratch-buffer-name)
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(cider-clojure-interaction-mode)
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(cider-scratch--insert-welcome-message)
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(current-buffer)))
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(defun cider-scratch-reset ()
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"Reset the current scratch buffer."
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(interactive)
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(erase-buffer)
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(cider-scratch--insert-welcome-message))
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(provide 'cider-scratch)
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;;; cider-scratch.el ends here
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