er-basic-expansions.el (7529B)
1 ;;; er-basic-expansions.el --- Words, symbols, strings, et al 2 3 ;; Copyright (C) 2011-2020 Free Software Foundation, Inc 4 5 ;; Author: Magnar Sveen <magnars@gmail.com> 6 ;; Keywords: marking region 7 8 ;; This program is free software; you can redistribute it and/or modify 9 ;; it under the terms of the GNU General Public License as published by 10 ;; the Free Software Foundation, either version 3 of the License, or 11 ;; (at your option) any later version. 12 13 ;; This program is distributed in the hope that it will be useful, 14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of 15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 ;; GNU General Public License for more details. 17 18 ;; You should have received a copy of the GNU General Public License 19 ;; along with this program. If not, see <http://www.gnu.org/licenses/>. 20 21 ;;; Commentary: 22 23 ;; Expansions that are useful in any major mode. 24 25 ;;; Code: 26 27 (require 'expand-region-core) 28 29 (defun er/mark-word () 30 "Mark the entire word around or in front of point." 31 (interactive) 32 (let ((word-regexp "\\sw")) 33 (when (or (looking-at word-regexp) 34 (er/looking-back-on-line word-regexp)) 35 (skip-syntax-forward "w") 36 (set-mark (point)) 37 (skip-syntax-backward "w")))) 38 39 (defun er/mark-symbol () 40 "Mark the entire symbol around or in front of point." 41 (interactive) 42 (let ((symbol-regexp "\\s_\\|\\sw")) 43 (when (or (looking-at symbol-regexp) 44 (er/looking-back-on-line symbol-regexp)) 45 (skip-syntax-forward "_w") 46 (set-mark (point)) 47 (skip-syntax-backward "_w")))) 48 49 (defun er/mark-symbol-with-prefix () 50 "Mark the entire symbol around or in front of point, including prefix." 51 (interactive) 52 (let ((symbol-regexp "\\s_\\|\\sw") 53 (prefix-regexp "\\s'")) 54 (when (or (looking-at prefix-regexp) 55 (looking-at symbol-regexp) 56 (er/looking-back-on-line symbol-regexp)) 57 (skip-syntax-forward "'") 58 (skip-syntax-forward "_w") 59 (set-mark (point)) 60 (skip-syntax-backward "_w") 61 (skip-syntax-backward "'")))) 62 63 ;; Mark method call 64 65 (defun er/mark-next-accessor () 66 "Presumes that current symbol is already marked, skips over one 67 period and marks next symbol." 68 (interactive) 69 (when (use-region-p) 70 (when (< (point) (mark)) 71 (exchange-point-and-mark)) 72 (let ((symbol-regexp "\\s_\\|\\sw")) 73 (when (looking-at "\\.") 74 (forward-char 1) 75 (skip-syntax-forward "_w") 76 (exchange-point-and-mark))))) 77 78 (defun er/mark-method-call () 79 "Mark the current symbol (including dots) and then paren to closing paren." 80 (interactive) 81 (let ((symbol-regexp "\\(\\s_\\|\\sw\\|\\.\\)+")) 82 (when (or (looking-at symbol-regexp) 83 (er/looking-back-on-line symbol-regexp)) 84 (skip-syntax-backward "_w.") 85 (set-mark (point)) 86 (when (looking-at symbol-regexp) 87 (goto-char (match-end 0))) 88 (if (looking-at "(") 89 (forward-list)) 90 (exchange-point-and-mark)))) 91 92 ;; Comments 93 94 (defun er--point-is-in-comment-p () 95 "t if point is in comment, otherwise nil" 96 (or (nth 4 (syntax-ppss)) 97 (memq (get-text-property (point) 'face) '(font-lock-comment-face font-lock-comment-delimiter-face)))) 98 99 (defun er/mark-comment () 100 "Mark the entire comment around point." 101 (interactive) 102 (when (er--point-is-in-comment-p) 103 (let ((p (point))) 104 (while (and (er--point-is-in-comment-p) (not (eobp))) 105 (forward-char 1)) 106 (skip-chars-backward "\n\r") 107 (set-mark (point)) 108 (goto-char p) 109 (while (er--point-is-in-comment-p) 110 (forward-char -1)) 111 (forward-char 1)))) 112 113 ;; Quotes 114 115 (defun er--current-quotes-char () 116 "The char that is the current quote delimiter" 117 (nth 3 (syntax-ppss))) 118 119 (defalias 'er--point-inside-string-p 'er--current-quotes-char) 120 121 (defun er--move-point-forward-out-of-string () 122 "Move point forward until it exits the current quoted string." 123 (er--move-point-backward-out-of-string) 124 (forward-sexp)) 125 126 (defun er--move-point-backward-out-of-string () 127 "Move point backward until it exits the current quoted string." 128 (goto-char (nth 8 (syntax-ppss)))) 129 130 (defun er/mark-inside-quotes () 131 "Mark the inside of the current string, not including the quotation marks." 132 (interactive) 133 (when (er--point-inside-string-p) 134 (er--move-point-backward-out-of-string) 135 (forward-char) 136 (set-mark (point)) 137 (er--move-point-forward-out-of-string) 138 (backward-char) 139 (exchange-point-and-mark))) 140 141 (defun er/mark-outside-quotes () 142 "Mark the current string, including the quotation marks." 143 (interactive) 144 (if (er--point-inside-string-p) 145 (er--move-point-backward-out-of-string) 146 (when (and (not (use-region-p)) 147 (er/looking-back-on-line "\\s\"")) 148 (backward-char) 149 (er--move-point-backward-out-of-string))) 150 (when (looking-at "\\s\"") 151 (set-mark (point)) 152 (forward-char) 153 (er--move-point-forward-out-of-string) 154 (exchange-point-and-mark))) 155 156 ;; Pairs - ie [] () {} etc 157 158 (defun er--point-inside-pairs-p () 159 "Is point inside any pairs?" 160 (> (car (syntax-ppss)) 0)) 161 162 (defun er/mark-inside-pairs () 163 "Mark inside pairs (as defined by the mode), not including the pairs." 164 (interactive) 165 (when (er--point-inside-pairs-p) 166 (goto-char (nth 1 (syntax-ppss))) 167 (set-mark (save-excursion 168 (forward-char 1) 169 (skip-chars-forward er--space-str) 170 (point))) 171 (forward-list) 172 (backward-char) 173 (skip-chars-backward er--space-str) 174 (exchange-point-and-mark))) 175 176 (defun er--looking-at-pair () 177 "Is point looking at an opening pair char?" 178 (looking-at "\\s(")) 179 180 (defun er--looking-at-marked-pair () 181 "Is point looking at a pair that is entirely marked?" 182 (and (er--looking-at-pair) 183 (use-region-p) 184 (>= (mark) 185 (save-excursion 186 (forward-list) 187 (point))))) 188 189 (defun er/mark-outside-pairs () 190 "Mark pairs (as defined by the mode), including the pair chars." 191 (interactive) 192 (if (and (er/looking-back-on-line "\\s)+\\=") 193 (not (er--looking-at-pair))) 194 (ignore-errors (backward-list 1)) 195 (skip-chars-forward er--space-str)) 196 (when (and (er--point-inside-pairs-p) 197 (or (not (er--looking-at-pair)) 198 (er--looking-at-marked-pair))) 199 (goto-char (nth 1 (syntax-ppss)))) 200 (when (er--looking-at-pair) 201 (set-mark (point)) 202 (forward-list) 203 (exchange-point-and-mark))) 204 205 (require 'thingatpt) 206 207 (defun er/mark-url () 208 (interactive) 209 (end-of-thing 'url) 210 (set-mark (point)) 211 (beginning-of-thing 'url)) 212 213 (defun er/mark-email () 214 (interactive) 215 (end-of-thing 'email) 216 (set-mark (point)) 217 (beginning-of-thing 'email)) 218 219 (defun er/mark-defun () 220 "Mark defun around or in front of point." 221 (interactive) 222 (end-of-defun) 223 (skip-chars-backward er--space-str) 224 (set-mark (point)) 225 (beginning-of-defun) 226 (skip-chars-forward er--space-str)) 227 228 ;; Methods to try expanding to 229 (setq er/try-expand-list 230 (append '(er/mark-word 231 er/mark-symbol 232 er/mark-symbol-with-prefix 233 er/mark-next-accessor 234 er/mark-method-call 235 er/mark-inside-quotes 236 er/mark-outside-quotes 237 er/mark-inside-pairs 238 er/mark-outside-pairs 239 er/mark-comment 240 er/mark-url 241 er/mark-email 242 er/mark-defun) 243 er/try-expand-list)) 244 245 (provide 'er-basic-expansions) 246 ;;; er-basic-expansions.el ends here