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;;; flusspferd.el --- Interactive interface to the Flusspferd REPL
;; Copyright (C) 2008, 2009 Flusspferd contributors (see "CONTRIBUTORS" or
;; http://flusspferd.org/contributors.txt)
;;
;; Author: Flusspferd contributors (see "CONTRIBUTORS" or
;; http://flusspferd.org/contributors.txt)
;; Homepage: http://flusspferd.org
;;
;; This file is NOT part of GNU Emacs.
;;
;; Permission is hereby granted, free of charge, to any person obtaining a copy
;; of this software and associated documentation files (the "Software"), to deal
;; in the Software without restriction, including without limitation the rights
;; to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
;; copies of the Software, and to permit persons to whom the Software is
;; furnished to do so, subject to the following conditions:
;; The above copyright notice and this permission notice shall be included in
;; all copies or substantial portions of the Software.
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
;; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
;; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
;; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
;; THE SOFTWARE.
;;; Commentary:
;;
;; ...
;;; Code:
(require 'comint)
(require 'easymenu)
;; Options
(defgroup flusspferd nil
"Flusspferd (Javascript interpreter) REPL"
:version "0.9"
:link '(url-link "http://flusspferd.org")
:prefix "flusspferd-"
:group 'external)
(defcustom flusspferd-executable "flusspferd"
"Flusspferd executable."
:group 'flusspferd
:type '(string))
(defcustom flusspferd-options ""
"Options for the Flusspferd executable."
:group 'flusspferd
:type '(string))
(defcustom flusspferd-buffer-name "*Flusspferd*"
"Name of the Flusspferd buffer."
:group 'flusspferd
:type '(string))
(defun flusspferd-is-running-p ()
"Check if Flusspferd is already running."
(comint-check-proc flusspferd-buffer-name))
(defun flusspferd-switch-to ()
"Switch to Flusspferd buffer."
(interactive)
(switch-to-buffer flusspferd-buffer-name))
(defmacro flusspferd-defun-and-go (name arglist docstring &rest body)
"Create two function with name NAME and NAME-and-go.
The NAME-and-go version calls (switch-to-buffer flusspferd-buffer-name) when done."
(let ((name-and-go (intern (concat (symbol-name name) "-and-go")))
(new-docstring
(concat docstring " Switches to Flusspferd buffer when finished.")))
`(progn
(defun ,name ,arglist ,docstring ,@body)
(defun ,name-and-go ,arglist ,new-docstring
,@body (list 'flusspferd-switch-to)))))
(flusspferd-defun-and-go flusspferd-eval-region (start end)
"Evaluates the region between START and END with flusspferd."
(interactive "r")
(unless (flusspferd-is-running-p)
(flusspferd))
(comint-send-region flusspferd-buffer-name start end)
(comint-send-string flusspferd-buffer-name "\n"))
(flusspferd-defun-and-go flusspferd-eval-last-defun ()
"Evaluate the function definition as determined by c-mark-function/js2-mark-defun."
(interactive)
(save-excursion
(if (functionp 'js2-mark-defun)
(js2-mark-defun)
(c-mark-function))
(flusspferd-eval-region (point) (mark))))
(flusspferd-defun-and-go flusspferd-eval-last-sexp ()
"Evaluate last sexp."
(interactive)
(flusspferd-eval-region
(save-excursion (backward-sexp) (point))
(point)))
(flusspferd-defun-and-go flusspferd-eval-buffer ()
"Evaluate buffer with Flusspferd."
(interactive)
(flusspferd-eval-region (point-min) (point-max)))
(flusspferd-defun-and-go flusspferd-eval-line ()
"Evaluate current line with Flusspferd."
(interactive)
(flusspferd-eval-region
(save-excursion (move-beginning-of-line nil) (point))
(save-excursion (move-end-of-line nil) (point))))
(defvar flusspferd-minor-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-x\C-e" 'flusspferd-eval-last-sexp)
(define-key map "\C-c\C-c" 'flusspferd-eval-buffer)
(define-key map "\C-c\C-r" 'flusspferd-eval-region)
map))
(defun flusspferd-helper-mark-active ()
"Check if there is an active region."
(if (functionp 'use-region-p)
(use-region-p)
(and transient-mark-mode mark-active)))
(easy-menu-define flusspferd-minor-mode-menu flusspferd-minor-mode-map
"Flusspferd menu"
'("Flusspferd"
["Evaluate Last S-Expression" flusspferd-eval-last-sexp t]
["Evaluate Region" flusspferd-eval-region
:active (flusspferd-helper-mark-active)]
["Evaluate Buffer" flusspferd-eval-buffer t]
["Evaluate Line" flusspferd-eval-line t :active (not (and (eolp) (bolp)))]
["Evaluate Last Function Definition" flusspferd-eval-last-defun t]
"--"
["Go to Flusspferd buffer" flusspferd-switch-to
:visible (flusspferd-is-running-p)
:active (not (string= (buffer-name) flusspferd-buffer-name))]
["Start Flusspferd Shell" flusspferd
:visible (not (flusspferd-is-running-p))]))
;;;###autoload
(define-minor-mode flusspferd-minor-mode
"Flusspferd minor mode. Provides keymap to evaluate Javascript code with Flusspferd."
:init-value nil
:lighter "Flusspferd"
:keymap flusspferd-minor-mode-map
(easy-menu-add flusspferd-minor-mode-menu))
(defvar inferior-flusspferd-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-a" 'comint-bol)
map))
(defun inferior-flusspferd-mode-quit (&optional arg)
"Quit inferior flusspferd mode."
(interactive "P")
(when (and (or arg (y-or-n-p "Really quit Flusspferd? "))
(flusspferd-is-running-p))
(delete-process flusspferd-buffer-name)
(kill-buffer flusspferd-buffer-name)))
(easy-menu-define inferior-flusspferd-mode-menu inferior-flusspferd-mode-map
"Inferior Flusspferd Mode menu."
'("Inferior Flusspferd"
["Quit Flusspferd" inferior-flusspferd-mode-quit t]))
(define-derived-mode inferior-flusspferd-mode comint-mode "Inferior Flusspferd"
"Embeds Flusspferd as a Javascript REPL into Emacs."
:group 'flusspferd
(setq comint-prompt-regexp "^[>\\?] ")
(setq comint-use-prompt-regexp t)
(setq comint-process-echoes t)
(easy-menu-add inferior-flusspferd-mode-menu))
;;;###autoload
(defun flusspferd ()
"Flusspferd (Javascript interpreter) REPL."
(interactive)
(unless (flusspferd-is-running-p)
(let ((flusspferd-buffer
(apply 'make-comint-in-buffer "Flusspferd" flusspferd-buffer-name
flusspferd-executable nil
(split-string flusspferd-options))))
(save-excursion
(set-buffer flusspferd-buffer)
(inferior-flusspferd-mode))))
(when (interactive-p)
(switch-to-buffer flusspferd-buffer-name)))
(provide 'flusspferd)
;;; flusspferd.el ends here
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