nxml-mode-expansions.el (4137B)
1 ;;; nxml-mode-expansions.el --- Nxml-specific expansions for expand-region 2 3 ;; Copyright (C) 2012-2020 Free Software Foundation, Inc 4 5 ;; Author: Ivan Andrus 6 ;; Based on js-mode-expansions by: Magnar Sveen <magnars@gmail.com> 7 ;; Keywords: marking region 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 ;; Feel free to contribute any other expansions for Nxml at 25 ;; 26 ;; https://github.com/magnars/expand-region.el 27 28 ;;; Code: 29 30 (require 'cl-lib) 31 (require 'expand-region-core) 32 (require 'html-mode-expansions) 33 (require 'nxml-mode) 34 35 (defun er/mark-nxml-tag () 36 "Marks one nxml element e.g. <p>" 37 (interactive) 38 (cond ((looking-at "<") 39 (nxml-mark-token-after)) 40 ((er/looking-back-exact ">") 41 (backward-char 1) 42 (nxml-mark-token-after)) 43 ((er/looking-back-max "<[^<>]*" 1000) 44 (nxml-mark-token-after)))) 45 46 (defun er/mark-nxml-element () 47 "Marks one nxml element e.g. <p>...</p>" 48 (interactive) 49 (if (not (looking-at "<[^/]")) 50 (er/mark-nxml-containing-element) 51 (set-mark (point)) 52 (nxml-forward-element) 53 (exchange-point-and-mark))) 54 55 (defun er/mark-nxml-containing-element () 56 "Marks one nxml element, but always e.g. <p>...</p>" 57 (interactive) 58 (nxml-up-element) 59 (set-mark (point)) 60 (nxml-backward-element)) 61 62 (defun er/mark-nxml-inside-element () 63 "Marks the inside Nxml statement, eg. <p>...</p>" 64 (interactive) 65 (let ((nxml-sexp-element-flag nil)) 66 (nxml-up-element) 67 (nxml-forward-balanced-item -1) 68 (set-mark (point)) 69 (nxml-backward-up-element) 70 (nxml-forward-balanced-item 1))) 71 72 (defun er/inside-nxml-attribute-string? () 73 "Returns the attribute from `xmltok-attributes' array that 74 point is in, or otherwise nil" 75 (save-excursion 76 (forward-char 1) 77 (nxml-token-before)) 78 (cl-find-if (lambda (att) 79 (and (<= (xmltok-attribute-value-start att) (point)) 80 (>= (xmltok-attribute-value-end att) (point)))) 81 xmltok-attributes)) 82 83 (defun er/mark-nxml-attribute-inner-string () 84 "Marks an attribute string" 85 (interactive) 86 (let ((attr (er/inside-nxml-attribute-string?))) 87 (when attr 88 (set-mark (xmltok-attribute-value-start attr)) 89 (goto-char (xmltok-attribute-value-end attr)) 90 (exchange-point-and-mark)))) 91 92 (defun er/mark-nxml-attribute-string () 93 "Marks an attribute string inside quotes." 94 (interactive) 95 (let ((attr (er/inside-nxml-attribute-string?))) 96 (when attr 97 (set-mark (1- (xmltok-attribute-value-start attr))) 98 (goto-char (1+ (xmltok-attribute-value-end attr))) 99 (exchange-point-and-mark)))) 100 101 (defun er/add-nxml-mode-expansions () 102 "Adds Nxml-specific expansions for buffers in nxml-mode" 103 (interactive) 104 (set (make-local-variable 'er/try-expand-list) 105 (append 106 '(nxml-mark-paragraph 107 ;; nxml-mark-token-after ;; Marks the current tag, etc. It's a bit schizophrenic 108 er/mark-nxml-tag 109 er/mark-nxml-inside-element 110 er/mark-nxml-element 111 er/mark-nxml-containing-element 112 er/mark-nxml-attribute-string 113 er/mark-nxml-attribute-inner-string 114 ;; Steal from html-mode-expansions 115 er/mark-html-attribute) 116 ;; some normal marks are more hindrance than help: 117 (remove 'er/mark-method-call 118 (remove 'er/mark-symbol-with-prefix 119 (remove 'er/mark-symbol er/try-expand-list)))))) 120 121 (er/enable-mode-expansions 'nxml-mode 'er/add-nxml-mode-expansions) 122 123 (provide 'nxml-mode-expansions) 124 125 ;; nxml-mode-expansions.el ends here