| 1 | ;;; python.el --- silly walks for Python -*- coding: iso-8859-1 -*- |
| 2 | |
| 3 | ;; Copyright (C) 2003-2011 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Author: Dave Love <fx@gnu.org> |
| 6 | ;; Maintainer: FSF |
| 7 | ;; Created: Nov 2003 |
| 8 | ;; Keywords: languages |
| 9 | |
| 10 | ;; This file is part of GNU Emacs. |
| 11 | |
| 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 13 | ;; it under the terms of the GNU General Public License as published by |
| 14 | ;; the Free Software Foundation, either version 3 of the License, or |
| 15 | ;; (at your option) any later version. |
| 16 | |
| 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | ;; GNU General Public License for more details. |
| 21 | |
| 22 | ;; You should have received a copy of the GNU General Public License |
| 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 24 | |
| 25 | ;;; Commentary: |
| 26 | |
| 27 | ;; Major mode for editing Python, with support for inferior processes. |
| 28 | |
| 29 | ;; There is another Python mode, python-mode.el: |
| 30 | ;; http://launchpad.net/python-mode |
| 31 | ;; used by XEmacs, and originally maintained with Python. |
| 32 | ;; That isn't covered by an FSF copyright assignment (?), unlike this |
| 33 | ;; code, and seems not to be well-maintained for Emacs (though I've |
| 34 | ;; submitted fixes). This mode is rather simpler and is better in |
| 35 | ;; other ways. In particular, using the syntax functions with text |
| 36 | ;; properties maintained by font-lock makes it more correct with |
| 37 | ;; arbitrary string and comment contents. |
| 38 | |
| 39 | ;; This doesn't implement all the facilities of python-mode.el. Some |
| 40 | ;; just need doing, e.g. catching exceptions in the inferior Python |
| 41 | ;; buffer (but see M-x pdb for debugging). [Actually, the use of |
| 42 | ;; `compilation-shell-minor-mode' now is probably enough for that.] |
| 43 | ;; Others don't seem appropriate. For instance, |
| 44 | ;; `forward-into-nomenclature' should be done separately, since it's |
| 45 | ;; not specific to Python, and I've installed a minor mode to do the |
| 46 | ;; job properly in Emacs 23. [CC mode 5.31 contains an incompatible |
| 47 | ;; feature, `subword-mode' which is intended to have a similar |
| 48 | ;; effect, but actually only affects word-oriented keybindings.] |
| 49 | |
| 50 | ;; Other things seem more natural or canonical here, e.g. the |
| 51 | ;; {beginning,end}-of-defun implementation dealing with nested |
| 52 | ;; definitions, and the inferior mode following `cmuscheme'. (The |
| 53 | ;; inferior mode can find the source of errors from |
| 54 | ;; `python-send-region' & al via `compilation-shell-minor-mode'.) |
| 55 | ;; There is (limited) symbol completion using lookup in Python and |
| 56 | ;; Eldoc support also using the inferior process. Successive TABs |
| 57 | ;; cycle between possible indentations for the line. |
| 58 | |
| 59 | ;; Even where it has similar facilities, this mode is incompatible |
| 60 | ;; with python-mode.el in some respects. For instance, various key |
| 61 | ;; bindings are changed to obey Emacs conventions. |
| 62 | |
| 63 | ;; TODO: See various Fixmes below. |
| 64 | |
| 65 | ;; Fixme: This doesn't support (the nascent) Python 3 . |
| 66 | |
| 67 | ;;; Code: |
| 68 | |
| 69 | (require 'comint) |
| 70 | |
| 71 | (eval-when-compile |
| 72 | (require 'compile) |
| 73 | (require 'hippie-exp)) |
| 74 | |
| 75 | (autoload 'comint-mode "comint") |
| 76 | |
| 77 | (defgroup python nil |
| 78 | "Silly walks in the Python language." |
| 79 | :group 'languages |
| 80 | :version "22.1" |
| 81 | :link '(emacs-commentary-link "python")) |
| 82 | \f |
| 83 | ;;;###autoload |
| 84 | (add-to-list 'interpreter-mode-alist (cons (purecopy "jython") 'jython-mode)) |
| 85 | ;;;###autoload |
| 86 | (add-to-list 'interpreter-mode-alist (cons (purecopy "python") 'python-mode)) |
| 87 | ;;;###autoload |
| 88 | (add-to-list 'auto-mode-alist (cons (purecopy "\\.py\\'") 'python-mode)) |
| 89 | \f |
| 90 | ;;;; Font lock |
| 91 | |
| 92 | (defvar python-font-lock-keywords |
| 93 | `(,(rx symbol-start |
| 94 |