python-el-expansions.el (3258B)
1 ;;; python-el-expansions.el --- Python-specific expansions for expand-region 2 3 ;; Copyright (C) 2012-2020 Free Software Foundation, Inc 4 5 ;; Authors: Ivan Andrus, Felix Geller, @edmccard 6 ;; Based on js-mode-expansions by: Magnar Sveen <magnars@gmail.com> 7 ;; Keywords: marking region python 8 9 ;; This program is free software; you can redistribute it and/or modify 10 ;; it under the terms of the GNU General Public License as published by 11 ;; the Free Software Foundation, either version 3 of the License, or 12 ;; (at your option) any later version. 13 14 ;; This program is distributed in the hope that it will be useful, 15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of 16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 ;; GNU General Public License for more details. 18 19 ;; You should have received a copy of the GNU General Public License 20 ;; along with this program. If not, see <http://www.gnu.org/licenses/>. 21 22 ;;; Commentary: 23 24 ;; For python.el included with GNU Emacs 25 ;; - Mark functionality taken from python.el: 26 ;; - `python-mark-block' 27 ;; - Additions implemented here: 28 ;; - `er/mark-python-statement' 29 ;; - `er/mark-inside-python-string' 30 ;; - `er/mark-outside-python-string' 31 ;; - Supports multi-line strings 32 33 ;; There is no need for a er/mark-python-defun since 34 ;; er/mark-python-block will mark it 35 36 ;; Feel free to contribute any other expansions for Python at 37 ;; 38 ;; https://github.com/magnars/expand-region.el 39 40 ;;; Code: 41 42 (require 'expand-region-core) 43 (require 'python) 44 45 (declare-function python-beginning-of-string "python-mode") 46 47 (defvar er--python-string-delimiter "'\"") 48 49 (defun er/mark-python-statement () 50 "Marks one Python statement, eg. x = 3" 51 (interactive) 52 (python-nav-end-of-statement) 53 (set-mark (point)) 54 (python-nav-beginning-of-statement)) 55 56 (defun er/mark-outside-python-string () 57 "Marks region outside a (possibly multi-line) Python string" 58 (interactive) 59 (python-beginning-of-string) 60 (set-mark (point)) 61 (forward-sexp) 62 (exchange-point-and-mark)) 63 64 (defun er/mark-inside-python-string () 65 "Marks region inside a (possibly multi-line) Python string" 66 (interactive) 67 (when (eq 'string (syntax-ppss-context (syntax-ppss))) 68 (python-beginning-of-string) 69 (let ((string-beginning (point))) 70 (forward-sexp) 71 (skip-chars-backward er--python-string-delimiter) 72 (set-mark (point)) 73 (goto-char string-beginning) 74 (skip-chars-forward er--python-string-delimiter)))) 75 76 (defun er/add-python-mode-expansions () 77 "Adds Python-specific expansions for buffers in python-mode" 78 (let ((try-expand-list-additions '(er/mark-python-statement 79 er/mark-inside-python-string 80 er/mark-outside-python-string 81 python-mark-block))) 82 (set (make-local-variable 'expand-region-skip-whitespace) nil) 83 (set (make-local-variable 'er/try-expand-list) 84 (remove 'er/mark-inside-quotes 85 (remove 'er/mark-outside-quotes 86 (append er/try-expand-list try-expand-list-additions)))))) 87 88 (er/enable-mode-expansions 'python-mode 'er/add-python-mode-expansions) 89 90 (provide 'python-el-expansions) 91 92 ;; python-el-expansions.el ends here