HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| c7fbbc3c CY |
1 | ;;; ruby-mode.el --- Major mode for editing Ruby files |
| 2 | ||
| acaf905b | 3 | ;; Copyright (C) 1994-2012 Free Software Foundation, Inc. |
| c7fbbc3c | 4 | |
| c5220417 GM |
5 | ;; Authors: Yukihiro Matsumoto |
| 6 | ;; Nobuyoshi Nakada | |
| c7fbbc3c CY |
7 | ;; URL: http://www.emacswiki.org/cgi-bin/wiki/RubyMode |
| 8 | ;; Created: Fri Feb 4 14:49:13 JST 1994 | |
| 9 | ;; Keywords: languages ruby | |
| 10 | ;; Version: 1.0 | |
| 11 | ||
| 12 | ;; This file is part of GNU Emacs. | |
| 13 | ||
| 14 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 15 | ;; it under the terms of the GNU General Public License as published by | |
| 16 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 17 | ;; (at your option) any later version. | |
| 18 | ||
| 19 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 20 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 21 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 22 | ;; GNU General Public License for more details. | |
| 23 | ||
| 24 | ;; You should have received a copy of the GNU General Public License | |
| 25 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
| 26 | ||
| 27 | ;;; Commentary: | |
| 28 | ||
| 29 | ;; Provides font-locking, indentation support, and navigation for Ruby code. | |
| 30 | ;; | |
| 31 | ;; If you're installing manually, you should add this to your .emacs | |
| 32 | ;; file after putting it on your load path: | |
| 33 | ;; | |
| 34 | ;; (autoload 'ruby-mode "ruby-mode" "Major mode for ruby files" t) | |
| 35 | ;; (add-to-list 'auto-mode-alist '("\\.rb$" . ruby-mode)) | |
| 36 | ;; (add-to-list 'interpreter-mode-alist '("ruby" . ruby-mode)) | |
| 37 | ;; | |
| 38 | ;; Still needs more docstrings; search below for TODO. | |
| 39 | ||
| 40 | ;;; Code: | |
| 41 | ||
| 42 | (eval-when-compile (require 'cl)) | |
| 43 | ||
| 44a41a47 KR |
44 | (defgroup ruby nil |
| 45 | "Major mode for editing Ruby code." | |
| 46 | :prefix "ruby-" | |
| 47 | :group 'languages) | |
| 48 | ||
| c7fbbc3c CY |
49 | (defconst ruby-keyword-end-re |
| 50 | (if (string-match "\\_>" "ruby") | |
| 51 | "\\_>" | |
| 52 | "\\>")) | |
| 53 | ||
| 54 | (defconst ruby-block-beg-keywords | |
| 55 | '("class" "module" "def" "if" "unless" "case" "while" "until" "for" "begin" "do") | |
| 56 | "Keywords at the beginning of blocks.") | |
| 57 | ||
| 58 | (defconst ruby-block-beg-re | |
| 59 | (regexp-opt ruby-block-beg-keywords) | |
| 60 | "Regexp to match the beginning of blocks.") | |
| 61 | ||
| 62 | (defconst ruby-non-block-do-re | |
| 63 | (concat (regexp-opt '("while" "until" "for" "rescue") t) ruby-keyword-end-re) | |
| 64 | "Regexp to match keywords that nest without blocks.") | |
| 65 | ||
| 66 | (defconst ruby-indent-beg-re | |
| 0ba2d4b6 DG |
67 | (concat "^\\s *" (regexp-opt '("class" "module" "def" "if" "unless" "case" |
| 68 | "while" "until" "for" "begin")) "\\_>") | |
| c7fbbc3c CY |
69 | "Regexp to match where the indentation gets deeper.") |
| 70 | ||
| 71 | (defconst ruby-modifier-beg-keywords | |
| 72 | '("if" "unless" "while" "until") | |
| 73 | "Modifiers that are the same as the beginning of blocks.") | |
| 74 | ||
| 75 | (defconst ruby-modifier-beg-re | |
| 76 | (regexp-opt ruby-modifier-beg-keywords) | |
| 77 | "Regexp to match modifiers same as the beginning of blocks.") | |
| 78 | ||
| 79 | (defconst ruby-modifier-re | |
| 80 | (regexp-opt (cons "rescue" ruby-modifier-beg-keywords)) | |
| 81 | "Regexp to match modifiers.") | |
| 82 | ||
| 83 | (defconst ruby-block-mid-keywords | |
| 84 | '("then" "else" "elsif" "when" "rescue" "ensure") | |
| 85 | "Keywords where the indentation gets shallower in middle of block statements.") | |
| 86 | ||
| 87 | (defconst ruby-block-mid-re | |
| 88 | (regexp-opt ruby-block-mid-keywords) | |
| 89 | "Regexp to match where the indentation gets shallower in middle of block statements.") | |
| 90 | ||
| 91 | (defconst ruby-block-op-keywords | |
| 92 | '("and" "or" "not") | |
| 93 | "Regexp to match boolean keywords.") | |
| 94 | ||
| 95 | (defconst ruby-block-hanging-re | |
| 96 | (regexp-opt (append ruby-modifier-beg-keywords ruby-block-op-keywords)) | |
| 97 | "Regexp to match hanging block modifiers.") | |
| 98 | ||
| 39675016 | 99 | (defconst ruby-block-end-re "\\_<end\\_>") |
| c7fbbc3c | 100 | |
| 8f06acce DG |
101 | (defconst ruby-defun-beg-re |
| 102 | '"\\(def\\|class\\|module\\)" | |
| 103 | "Regexp to match the beginning of a defun, in the general sense.") | |
| 104 | ||
| bb808526 DG |
105 | (defconst ruby-singleton-class-re |
| 106 | "class\\s *<<" | |
| 107 | "Regexp to match the beginning of a singleton class context.") | |
| 108 | ||
| cf38dd42 SM |
109 | (eval-and-compile |
| 110 | (defconst ruby-here-doc-beg-re | |
| c7fbbc3c | 111 | "\\(<\\)<\\(-\\)?\\(\\([a-zA-Z0-9_]+\\)\\|[\"]\\([^\"]+\\)[\"]\\|[']\\([^']+\\)[']\\)" |
| c62792e7 DG |
112 | "Regexp to match the beginning of a heredoc.") |
| 113 | ||
| 114 | (defconst ruby-expression-expansion-re | |
| 115 | "[^\\]\\(\\\\\\\\\\)*\\(#\\({[^}\n\\\\]*\\(\\\\.[^}\n\\\\]*\\)*}\\|\\(\\$\\|@\\|@@\\)\\(\\w\\|_\\)+\\)\\)")) | |
| c7fbbc3c CY |
116 | |
| 117 | (defun ruby-here-doc-end-match () | |
| 118 | "Return a regexp to find the end of a heredoc. | |
| 119 | ||
| 120 | This should only be called after matching against `ruby-here-doc-beg-re'." | |
| 121 | (concat "^" | |
| 122 | (if (match-string 2) "[ \t]*" nil) | |
| 123 | (regexp-quote | |
| 124 | (or (match-string 4) | |
| 125 | (match-string 5) | |
| 126 | (match-string 6))))) | |
| 127 | ||
| c7fbbc3c | 128 | (defconst ruby-delimiter |
| 39675016 | 129 | (concat "[?$/%(){}#\"'`.:]\\|<<\\|\\[\\|\\]\\|\\_<\\(" |
| c7fbbc3c | 130 | ruby-block-beg-re |
| 39675016 | 131 | "\\)\\_>\\|" ruby-block-end-re |
| c7fbbc3c CY |
132 | "\\|^=begin\\|" ruby-here-doc-beg-re)) |
| 133 | ||
| 134 | (defconst ruby-negative | |
| 135 | (concat "^[ \t]*\\(\\(" ruby-block-mid-re "\\)\\>\\|" | |
| 136 | ruby-block-end-re "\\|}\\|\\]\\)") | |
| 137 | "Regexp to match where the indentation gets shallower.") | |
| 138 | ||
| 139 | (defconst ruby-operator-re "[-,.+*/%&|^~=<>:]" | |
| 140 | "Regexp to match operators.") | |
| 141 | ||
| 142 | (defconst ruby-symbol-chars "a-zA-Z0-9_" | |
| 143 | "List of characters that symbol names may contain.") | |
| 144 | (defconst ruby-symbol-re (concat "[" ruby-symbol-chars "]") | |
| 145 | "Regexp to match symbols.") | |
| 146 | ||
| 2122161f | 147 | (define-abbrev-table 'ruby-mode-abbrev-table () |
| ee61fe97 | 148 | "Abbrev table in use in Ruby mode buffers.") |
| c7fbbc3c | 149 | |
| c7fbbc3c CY |
150 | (defvar ruby-mode-map |
| 151 | (let ((map (make-sparse-keymap))) | |
| c7fbbc3c CY |
152 | (define-key map (kbd "M-C-b") 'ruby-backward-sexp) |
| 153 | (define-key map (kbd "M-C-f") 'ruby-forward-sexp) | |
| 154 | (define-key map (kbd "M-C-p") 'ruby-beginning-of-block) | |
| 155 | (define-key map (kbd "M-C-n") 'ruby-end-of-block) | |
| c7fbbc3c | 156 | (define-key map (kbd "M-C-q") 'ruby-indent-exp) |
| 0d9e2599 | 157 | (define-key map (kbd "C-c {") 'ruby-toggle-block) |
| c7fbbc3c | 158 | map) |
| ee61fe97 | 159 | "Keymap used in Ruby mode.") |
| c7fbbc3c CY |
160 | |
| 161 | (defvar ruby-mode-syntax-table | |
| 162 | (let ((table (make-syntax-table))) | |
| 163 | (modify-syntax-entry ?\' "\"" table) | |
| 164 | (modify-syntax-entry ?\" "\"" table) | |
| 165 | (modify-syntax-entry ?\` "\"" table) | |
| 166 | (modify-syntax-entry ?# "<" table) | |
| 167 | (modify-syntax-entry ?\n ">" table) | |
| 168 | (modify-syntax-entry ?\\ "\\" table) | |
| 169 | (modify-syntax-entry ?$ "." table) | |
| 170 | (modify-syntax-entry ?? "_" table) | |
| 171 | (modify-syntax-entry ?_ "_" table) | |
| 39675016 | 172 | (modify-syntax-entry ?: "_" table) |
| c7fbbc3c CY |
173 | (modify-syntax-entry ?< "." table) |
| 174 | (modify-syntax-entry ?> "." table) | |
| 175 | (modify-syntax-entry ?& "." table) | |
| 176 | (modify-syntax-entry ?| "." table) | |
| 177 | (modify-syntax-entry ?% "." table) | |
| 178 | (modify-syntax-entry ?= "." table) | |
| 179 | (modify-syntax-entry ?/ "." table) | |
| 180 | (modify-syntax-entry ?+ "." table) | |
| 181 | (modify-syntax-entry ?* "." table) | |
| 182 | (modify-syntax-entry ?- "." table) | |
| 183 | (modify-syntax-entry ?\; "." table) | |
| 184 | (modify-syntax-entry ?\( "()" table) | |
| 185 | (modify-syntax-entry ?\) ")(" table) | |
| 186 | (modify-syntax-entry ?\{ "(}" table) | |
| 187 | (modify-syntax-entry ?\} "){" table) | |
| 188 | (modify-syntax-entry ?\[ "(]" table) | |
| 189 | (modify-syntax-entry ?\] ")[" table) | |
| 190 | table) | |
| ee61fe97 | 191 | "Syntax table to use in Ruby mode.") |
| c7fbbc3c CY |
192 | |
| 193 | (defcustom ruby-indent-tabs-mode nil | |
| ee61fe97 | 194 | "Indentation can insert tabs in Ruby mode if this is non-nil." |
| c7fbbc3c CY |
195 | :type 'boolean :group 'ruby) |
| 196 | ||
| 197 | (defcustom ruby-indent-level 2 | |
| ee61fe97 | 198 | "Indentation of Ruby statements." |
| c7fbbc3c CY |
199 | :type 'integer :group 'ruby) |
| 200 | ||
| 201 | (defcustom ruby-comment-column 32 | |
| 202 | "Indentation column of comments." | |
| 203 | :type 'integer :group 'ruby) | |
| 204 | ||
| 205 | (defcustom ruby-deep-arglist t | |
| 206 | "Deep indent lists in parenthesis when non-nil. | |
| 207 | Also ignores spaces after parenthesis when 'space." | |
| 208 | :group 'ruby) | |
| 209 | ||
| 210 | (defcustom ruby-deep-indent-paren '(?\( ?\[ ?\] t) | |
| ee61fe97 JB |
211 | "Deep indent lists in parenthesis when non-nil. |
| 212 | The value t means continuous line. | |
| c7fbbc3c CY |
213 | Also ignores spaces after parenthesis when 'space." |
| 214 | :group 'ruby) | |
| 215 | ||
| 216 | (defcustom ruby-deep-indent-paren-style 'space | |
| 217 | "Default deep indent style." | |
| 218 | :options '(t nil space) :group 'ruby) | |
| 219 | ||
| 220 | (defcustom ruby-encoding-map '((shift_jis . cp932) (shift-jis . cp932)) | |
| 221 | "Alist to map encoding name from Emacs to Ruby." | |
| 222 | :group 'ruby) | |
| 223 | ||
| 224 | (defcustom ruby-insert-encoding-magic-comment t | |
| ee61fe97 | 225 | "Insert a magic Emacs 'coding' comment upon save if this is non-nil." |
| c7fbbc3c CY |
226 | :type 'boolean :group 'ruby) |
| 227 | ||
| 228 | (defcustom ruby-use-encoding-map t | |
| 229 | "Use `ruby-encoding-map' to set encoding magic comment if this is non-nil." | |
| 230 | :type 'boolean :group 'ruby) | |
| 231 | ||
| 232 | ;; Safe file variables | |
| 233 | (put 'ruby-indent-tabs-mode 'safe-local-variable 'booleanp) | |
| 234 | (put 'ruby-indent-level 'safe-local-variable 'integerp) | |
| 235 | (put 'ruby-comment-column 'safe-local-variable 'integerp) | |
| 236 | (put 'ruby-deep-arglist 'safe-local-variable 'booleanp) | |
| 237 | ||
| 238 | (defun ruby-imenu-create-index-in-block (prefix beg end) | |
| 239 | "Create an imenu index of methods inside a block." | |
| 240 | (let ((index-alist '()) (case-fold-search nil) | |
| 241 | name next pos decl sing) | |
| 242 | (goto-char beg) | |
| 243 | (while (re-search-forward "^\\s *\\(\\(class\\s +\\|\\(class\\s *<<\\s *\\)\\|module\\s +\\)\\([^\(<\n ]+\\)\\|\\(def\\|alias\\)\\s +\\([^\(\n ]+\\)\\)" end t) | |
| 244 | (setq sing (match-beginning 3)) | |
| 245 | (setq decl (match-string 5)) | |
| 246 | (setq next (match-end 0)) | |
| 247 | (setq name (or (match-string 4) (match-string 6))) | |
| 248 | (setq pos (match-beginning 0)) | |
| 249 | (cond | |
| 250 | ((string= "alias" decl) | |
| 251 | (if prefix (setq name (concat prefix name))) | |
| 252 | (push (cons name pos) index-alist)) | |
| 253 | ((string= "def" decl) | |
| 254 | (if prefix | |
| 255 | (setq name | |
| 256 | (cond | |
| 257 | ((string-match "^self\." name) | |
| 258 | (concat (substring prefix 0 -1) (substring name 4))) | |
| 259 | (t (concat prefix name))))) | |
| 260 | (push (cons name pos) index-alist) | |
| 261 | (ruby-accurate-end-of-block end)) | |
| 262 | (t | |
| 263 | (if (string= "self" name) | |
| 264 | (if prefix (setq name (substring prefix 0 -1))) | |
| 265 | (if prefix (setq name (concat (substring prefix 0 -1) "::" name))) | |
| 266 | (push (cons name pos) index-alist)) | |
| 267 | (ruby-accurate-end-of-block end) | |
| 268 | (setq beg (point)) | |
| 269 | (setq index-alist | |
| 270 | (nconc (ruby-imenu-create-index-in-block | |
| 271 | (concat name (if sing "." "#")) | |
| 272 | next beg) index-alist)) | |
| 273 | (goto-char beg)))) | |
| 274 | index-alist)) | |
| 275 | ||
| 276 | (defun ruby-imenu-create-index () | |
| 277 | "Create an imenu index of all methods in the buffer." | |
| 278 | (nreverse (ruby-imenu-create-index-in-block nil (point-min) nil))) | |
| 279 | ||
| 280 | (defun ruby-accurate-end-of-block (&optional end) | |
| 281 | "TODO: document." | |
| 282 | (let (state | |
| 283 | (end (or end (point-max)))) | |
| 284 | (while (and (setq state (apply 'ruby-parse-partial end state)) | |
| 285 | (>= (nth 2 state) 0) (< (point) end))))) | |
| 286 | ||
| 287 | (defun ruby-mode-variables () | |
| ee61fe97 | 288 | "Set up initial buffer-local variables for Ruby mode." |
| c7fbbc3c CY |
289 | (set-syntax-table ruby-mode-syntax-table) |
| 290 | (setq local-abbrev-table ruby-mode-abbrev-table) | |
| 291 | (setq indent-tabs-mode ruby-indent-tabs-mode) | |
| 292 | (set (make-local-variable 'indent-line-function) 'ruby-indent-line) | |
| 293 | (set (make-local-variable 'require-final-newline) t) | |
| 294 | (set (make-local-variable 'comment-start) "# ") | |
| 295 | (set (make-local-variable 'comment-end) "") | |
| 296 | (set (make-local-variable 'comment-column) ruby-comment-column) | |
| 297 | (set (make-local-variable 'comment-start-skip) "#+ *") | |
| 298 | (set (make-local-variable 'parse-sexp-ignore-comments) t) | |
| 299 | (set (make-local-variable 'parse-sexp-lookup-properties) t) | |
| 300 | (set (make-local-variable 'paragraph-start) (concat "$\\|" page-delimiter)) | |
| 301 | (set (make-local-variable 'paragraph-separate) paragraph-start) | |
| 302 | (set (make-local-variable 'paragraph-ignore-fill-prefix) t)) | |
| 303 | ||
| 304 | (defun ruby-mode-set-encoding () | |
| 305 | "Insert a magic comment header with the proper encoding if necessary." | |
| 306 | (save-excursion | |
| 307 | (widen) | |
| 308 | (goto-char (point-min)) | |
| 309 | (when (re-search-forward "[^\0-\177]" nil t) | |
| 310 | (goto-char (point-min)) | |
| 311 | (let ((coding-system | |
| 312 | (or coding-system-for-write | |
| 313 | buffer-file-coding-system))) | |
| 314 | (if coding-system | |
| 315 | (setq coding-system | |
| 316 | (or (coding-system-get coding-system 'mime-charset) | |
| 317 | (coding-system-change-eol-conversion coding-system nil)))) | |
| 318 | (setq coding-system | |
| 319 | (if coding-system | |
| 320 | (symbol-name | |
| 321 | (or (and ruby-use-encoding-map | |
| 322 | (cdr (assq coding-system ruby-encoding-map))) | |
| 323 | coding-system)) | |
| 324 | "ascii-8bit")) | |
| cc9c9831 | 325 | (if (looking-at "^#!") (beginning-of-line 2)) |
| c7fbbc3c CY |
326 | (cond ((looking-at "\\s *#.*-\*-\\s *\\(en\\)?coding\\s *:\\s *\\([-a-z0-9_]*\\)\\s *\\(;\\|-\*-\\)") |
| 327 | (unless (string= (match-string 2) coding-system) | |
| 328 | (goto-char (match-beginning 2)) | |
| 329 | (delete-region (point) (match-end 2)) | |
| 330 | (and (looking-at "-\*-") | |
| 331 | (let ((n (skip-chars-backward " "))) | |
| 332 | (cond ((= n 0) (insert " ") (backward-char)) | |
| 333 | ((= n -1) (insert " ")) | |
| 334 | ((forward-char))))) | |
| 335 | (insert coding-system))) | |
| 336 | ((looking-at "\\s *#.*coding\\s *[:=]")) | |
| 337 | (t (when ruby-insert-encoding-magic-comment | |
| 338 | (insert "# -*- coding: " coding-system " -*-\n")))))))) | |
| 339 | ||
| 340 | (defun ruby-current-indentation () | |
| 341 | "Return the indentation level of current line." | |
| 342 | (save-excursion | |
| 343 | (beginning-of-line) | |
| 344 | (back-to-indentation) | |
| 345 | (current-column))) | |
| 346 | ||
| cf38dd42 | 347 | (defun ruby-indent-line (&optional ignored) |
| ee61fe97 | 348 | "Correct the indentation of the current Ruby line." |
| c7fbbc3c CY |
349 | (interactive) |
| 350 | (ruby-indent-to (ruby-calculate-indent))) | |
| 351 | ||
| 352 | (defun ruby-indent-to (column) | |
| 353 | "Indent the current line to COLUMN." | |
| 354 | (when column | |
| 355 | (let (shift top beg) | |
| 356 | (and (< column 0) (error "invalid nest")) | |
| 357 | (setq shift (current-column)) | |
| 358 | (beginning-of-line) | |
| 359 | (setq beg (point)) | |
| 360 | (back-to-indentation) | |
| 361 | (setq top (current-column)) | |
| 362 | (skip-chars-backward " \t") | |
| 363 | (if (>= shift top) (setq shift (- shift top)) | |
| 364 | (setq shift 0)) | |
| 365 | (if (and (bolp) | |
| 366 | (= column top)) | |
| 367 | (move-to-column (+ column shift)) | |
| 368 | (move-to-column top) | |
| 369 | (delete-region beg (point)) | |
| 370 | (beginning-of-line) | |
| 371 | (indent-to column) | |
| 372 | (move-to-column (+ column shift)))))) | |
| 373 | ||
| 374 | (defun ruby-special-char-p (&optional pos) | |
| 375 | "Return t if the character before POS is a special character. | |
| 376 | If omitted, POS defaults to the current point. | |
| 377 | Special characters are `?', `$', `:' when preceded by whitespace, | |
| 378 | and `\\' when preceded by `?'." | |
| 379 | (setq pos (or pos (point))) | |
| 380 | (let ((c (char-before pos)) (b (and (< (point-min) pos) | |
| 381 | (char-before (1- pos))))) | |
| 382 | (cond ((or (eq c ??) (eq c ?$))) | |
| 383 | ((and (eq c ?:) (or (not b) (eq (char-syntax b) ? )))) | |
| 384 | ((eq c ?\\) (eq b ??))))) | |
| 385 | ||
| 9cd80478 DG |
386 | (defun ruby-singleton-class-p (&optional pos) |
| 387 | (save-excursion | |
| 388 | (when pos (goto-char pos)) | |
| 389 | (forward-word -1) | |
| 390 | (and (or (bolp) (not (eq (char-before (point)) ?_))) | |
| bb808526 | 391 | (looking-at ruby-singleton-class-re)))) |
| 9cd80478 | 392 | |
| c7fbbc3c | 393 | (defun ruby-expr-beg (&optional option) |
| 8619323f DG |
394 | "Check if point is possibly at the beginning of an expression. |
| 395 | OPTION specifies the type of the expression. | |
| 396 | Can be one of `heredoc', `modifier', `expr-qstr', `expr-re'." | |
| c7fbbc3c CY |
397 | (save-excursion |
| 398 | (store-match-data nil) | |
| 9cd80478 DG |
399 | (let ((space (skip-chars-backward " \t")) |
| 400 | (start (point))) | |
| c7fbbc3c CY |
401 | (cond |
| 402 | ((bolp) t) | |
| 403 | ((progn | |
| 404 | (forward-char -1) | |
| 405 | (and (looking-at "\\?") | |
| 406 | (or (eq (char-syntax (char-before (point))) ?w) | |
| 407 | (ruby-special-char-p)))) | |
| 408 | nil) | |
| 8619323f DG |
409 | ((looking-at ruby-operator-re)) |
| 410 | ((eq option 'heredoc) | |
| 411 | (and (< space 0) (not (ruby-singleton-class-p start)))) | |
| 412 | ((or (looking-at "[\\[({,;]") | |
| c7fbbc3c CY |
413 | (and (looking-at "[!?]") |
| 414 | (or (not (eq option 'modifier)) | |
| 415 | (bolp) | |
| 416 | (save-excursion (forward-char -1) (looking-at "\\Sw$")))) | |
| 417 | (and (looking-at ruby-symbol-re) | |
| 418 | (skip-chars-backward ruby-symbol-chars) | |
| 419 | (cond | |
| 420 | ((looking-at (regexp-opt | |
| 421 | (append ruby-block-beg-keywords | |
| 422 | ruby-block-op-keywords | |
| 423 | ruby-block-mid-keywords) | |
| 424 | 'words)) | |
| 425 | (goto-char (match-end 0)) | |
| 9cd80478 | 426 | (not (looking-at "\\s_\\|!"))) |
| c7fbbc3c CY |
427 | ((eq option 'expr-qstr) |
| 428 | (looking-at "[a-zA-Z][a-zA-z0-9_]* +%[^ \t]")) | |
| 429 | ((eq option 'expr-re) | |
| 430 | (looking-at "[a-zA-Z][a-zA-z0-9_]* +/[^ \t]")) | |
| 431 | (t nil))))))))) | |
| 432 | ||
| 433 | (defun ruby-forward-string (term &optional end no-error expand) | |
| 434 | "TODO: document." | |
| 435 | (let ((n 1) (c (string-to-char term)) | |
| 436 | (re (if expand | |
| 437 | (concat "[^\\]\\(\\\\\\\\\\)*\\([" term "]\\|\\(#{\\)\\)") | |
| 438 | (concat "[^\\]\\(\\\\\\\\\\)*[" term "]")))) | |
| 439 | (while (and (re-search-forward re end no-error) | |
| 440 | (if (match-beginning 3) | |
| 441 | (ruby-forward-string "}{" end no-error nil) | |
| 442 | (> (setq n (if (eq (char-before (point)) c) | |
| 443 | (1- n) (1+ n))) 0))) | |
| 444 | (forward-char -1)) | |
| 445 | (cond ((zerop n)) | |
| 446 | (no-error nil) | |
| 447 | ((error "unterminated string"))))) | |
| 448 | ||
| 449 | (defun ruby-deep-indent-paren-p (c) | |
| ee61fe97 | 450 | "TODO: document." |
| c7fbbc3c CY |
451 | (cond ((listp ruby-deep-indent-paren) |
| 452 | (let ((deep (assoc c ruby-deep-indent-paren))) | |
| 453 | (cond (deep | |
| 454 | (or (cdr deep) ruby-deep-indent-paren-style)) | |
| 455 | ((memq c ruby-deep-indent-paren) | |
| 456 | ruby-deep-indent-paren-style)))) | |
| 457 | ((eq c ruby-deep-indent-paren) ruby-deep-indent-paren-style) | |
| 458 | ((eq c ?\( ) ruby-deep-arglist))) | |
| 459 | ||
| 460 | (defun ruby-parse-partial (&optional end in-string nest depth pcol indent) | |
| ee61fe97 | 461 | "TODO: document throughout function body." |
| c7fbbc3c CY |
462 | (or depth (setq depth 0)) |
| 463 | (or indent (setq indent 0)) | |
| 464 | (when (re-search-forward ruby-delimiter end 'move) | |
| 465 | (let ((pnt (point)) w re expand) | |
| 466 | (goto-char (match-beginning 0)) | |
| 467 | (cond | |
| 468 | ((and (memq (char-before) '(?@ ?$)) (looking-at "\\sw")) | |
| 469 | (goto-char pnt)) | |
| 470 | ((looking-at "[\"`]") ;skip string | |
| 471 | (cond | |
| 472 | ((and (not (eobp)) | |
| 473 | (ruby-forward-string (buffer-substring (point) (1+ (point))) end t t)) | |
| 474 | nil) | |
| 475 | (t | |
| 476 | (setq in-string (point)) | |
| 477 | (goto-char end)))) | |
| 478 | ((looking-at "'") | |
| 479 | (cond | |
| 480 | ((and (not (eobp)) | |
| 481 | (re-search-forward "[^\\]\\(\\\\\\\\\\)*'" end t)) | |
| 482 | nil) | |
| 483 | (t | |
| 484 | (setq in-string (point)) | |
| 485 | (goto-char end)))) | |
| 486 | ((looking-at "/=") | |
| 487 | (goto-char pnt)) | |
| 488 | ((looking-at "/") | |
| 489 | (cond | |
| 490 | ((and (not (eobp)) (ruby-expr-beg 'expr-re)) | |
| 491 | (if (ruby-forward-string "/" end t t) | |
| 492 | nil | |
| 493 | (setq in-string (point)) | |
| 494 | (goto-char end))) | |
| 495 | (t | |
| 496 | (goto-char pnt)))) | |
| 497 | ((looking-at "%") | |
| 498 | (cond | |
| 499 | ((and (not (eobp)) | |
| 500 | (ruby-expr-beg 'expr-qstr) | |
| 501 | (not (looking-at "%=")) | |
| 502 | (looking-at "%[QqrxWw]?\\([^a-zA-Z0-9 \t\n]\\)")) | |
| 503 | (goto-char (match-beginning 1)) | |
| 504 | (setq expand (not (memq (char-before) '(?q ?w)))) | |
| 505 | (setq w (match-string 1)) | |
| 506 | (cond | |
| 507 | ((string= w "[") (setq re "][")) | |
| 508 | ((string= w "{") (setq re "}{")) | |
| 509 | ((string= w "(") (setq re ")(")) | |
| 510 | ((string= w "<") (setq re "><")) | |
| 511 | ((and expand (string= w "\\")) | |
| 512 | (setq w (concat "\\" w)))) | |
| 513 | (unless (cond (re (ruby-forward-string re end t expand)) | |
| 514 | (expand (ruby-forward-string w end t t)) | |
| 515 | (t (re-search-forward | |
| 516 | (if (string= w "\\") | |
| 517 | "\\\\[^\\]*\\\\" | |
| 518 | (concat "[^\\]\\(\\\\\\\\\\)*" w)) | |
| 519 | end t))) | |
| 520 | (setq in-string (point)) | |
| 521 | (goto-char end))) | |
| 522 | (t | |
| 523 | (goto-char pnt)))) | |
| 524 | ((looking-at "\\?") ;skip ?char | |
| 525 | (cond | |
| 526 | ((and (ruby-expr-beg) | |
| 527 | (looking-at "?\\(\\\\C-\\|\\\\M-\\)*\\\\?.")) | |
| 528 | (goto-char (match-end 0))) | |
| 529 | (t | |
| 530 | (goto-char pnt)))) | |
| 531 | ((looking-at "\\$") ;skip $char | |
| 532 | (goto-char pnt) | |
| 533 | (forward-char 1)) | |
| 534 | ((looking-at "#") ;skip comment | |
| 535 | (forward-line 1) | |
| 536 | (goto-char (point)) | |
| 537 | ) | |
| 538 | ((looking-at "[\\[{(]") | |
| 539 | (let ((deep (ruby-deep-indent-paren-p (char-after)))) | |
| 540 | (if (and deep (or (not (eq (char-after) ?\{)) (ruby-expr-beg))) | |
| 541 | (progn | |
| 542 | (and (eq deep 'space) (looking-at ".\\s +[^# \t\n]") | |
| 543 | (setq pnt (1- (match-end 0)))) | |
| 544 | (setq nest (cons (cons (char-after (point)) pnt) nest)) | |
| 545 | (setq pcol (cons (cons pnt depth) pcol)) | |
| 546 | (setq depth 0)) | |
| 547 | (setq nest (cons (cons (char-after (point)) pnt) nest)) | |
| 548 | (setq depth (1+ depth)))) | |
| 549 | (goto-char pnt) | |
| 550 | ) | |
| 551 | ((looking-at "[])}]") | |
| 552 | (if (ruby-deep-indent-paren-p (matching-paren (char-after))) | |
| 553 | (setq depth (cdr (car pcol)) pcol (cdr pcol)) | |
| 554 | (setq depth (1- depth))) | |
| 555 | (setq nest (cdr nest)) | |
| 556 | (goto-char pnt)) | |
| 557 | ((looking-at ruby-block-end-re) | |
| 558 | (if (or (and (not (bolp)) | |
| 559 | (progn | |
| 560 | (forward-char -1) | |
| 561 | (setq w (char-after (point))) | |
| 562 | (or (eq ?_ w) | |
| 563 | (eq ?. w)))) | |
| 564 | (progn | |
| 565 | (goto-char pnt) | |
| 566 | (setq w (char-after (point))) | |
| 567 | (or (eq ?_ w) | |
| 568 | (eq ?! w) | |
| 569 | (eq ?? w)))) | |
| 570 | nil | |
| 571 | (setq nest (cdr nest)) | |
| 572 | (setq depth (1- depth))) | |
| 573 | (goto-char pnt)) | |
| 574 | ((looking-at "def\\s +[^(\n;]*") | |
| 575 | (if (or (bolp) | |
| 576 | (progn | |
| 577 | (forward-char -1) | |
| 578 | (not (eq ?_ (char-after (point)))))) | |
| 579 | (progn | |
| 580 | (setq nest (cons (cons nil pnt) nest)) | |
| 581 | (setq depth (1+ depth)))) | |
| 582 | (goto-char (match-end 0))) | |
| 39675016 | 583 | ((looking-at (concat "\\_<\\(" ruby-block-beg-re "\\)\\_>")) |
| c7fbbc3c CY |
584 | (and |
| 585 | (save-match-data | |
| 586 | (or (not (looking-at (concat "do" ruby-keyword-end-re))) | |
| 587 | (save-excursion | |
| 588 | (back-to-indentation) | |
| 589 | (not (looking-at ruby-non-block-do-re))))) | |
| 590 | (or (bolp) | |
| 591 | (progn | |
| 592 | (forward-char -1) | |
| 593 | (setq w (char-after (point))) | |
| 594 | (not (or (eq ?_ w) | |
| 595 | (eq ?. w))))) | |
| 596 | (goto-char pnt) | |
| 597 | (setq w (char-after (point))) | |
| c7fbbc3c | 598 | (not (eq ?! w)) |
| c7fbbc3c CY |
599 | (skip-chars-forward " \t") |
| 600 | (goto-char (match-beginning 0)) | |
| 601 | (or (not (looking-at ruby-modifier-re)) | |
| 602 | (ruby-expr-beg 'modifier)) | |
| 603 | (goto-char pnt) | |
| 604 | (setq nest (cons (cons nil pnt) nest)) | |
| 605 | (setq depth (1+ depth))) | |
| 606 | (goto-char pnt)) | |
| 607 | ((looking-at ":\\(['\"]\\)") | |
| 608 | (goto-char (match-beginning 1)) | |
| c28662a8 | 609 | (ruby-forward-string (match-string 1) end t)) |
| 11473529 | 610 | ((looking-at ":\\([-,.+*/%&|^~<>]=?\\|===?\\|<=>\\|![~=]?\\)") |
| c7fbbc3c CY |
611 | (goto-char (match-end 0))) |
| 612 | ((looking-at ":\\([a-zA-Z_][a-zA-Z_0-9]*[!?=]?\\)?") | |
| 613 | (goto-char (match-end 0))) | |
| 614 | ((or (looking-at "\\.\\.\\.?") | |
| 615 | (looking-at "\\.[0-9]+") | |
| 616 | (looking-at "\\.[a-zA-Z_0-9]+") | |
| 617 | (looking-at "\\.")) | |
| 618 | (goto-char (match-end 0))) | |
| 619 | ((looking-at "^=begin") | |
| 620 | (if (re-search-forward "^=end" end t) | |
| 621 | (forward-line 1) | |
| 622 | (setq in-string (match-end 0)) | |
| 623 | (goto-char end))) | |
| 624 | ((looking-at "<<") | |
| 625 | (cond | |
| 626 | ((and (ruby-expr-beg 'heredoc) | |
| 627 | (looking-at "<<\\(-\\)?\\(\\([\"'`]\\)\\([^\n]+?\\)\\3\\|\\(?:\\sw\\|\\s_\\)+\\)")) | |
| 628 | (setq re (regexp-quote (or (match-string 4) (match-string 2)))) | |
| 629 | (if (match-beginning 1) (setq re (concat "\\s *" re))) | |
| 630 | (let* ((id-end (goto-char (match-end 0))) | |
| e180ab9f | 631 | (line-end-position (point-at-eol)) |
| c7fbbc3c CY |
632 | (state (list in-string nest depth pcol indent))) |
| 633 | ;; parse the rest of the line | |
| 634 | (while (and (> line-end-position (point)) | |
| 635 | (setq state (apply 'ruby-parse-partial | |
| 636 | line-end-position state)))) | |
| 637 | (setq in-string (car state) | |
| 638 | nest (nth 1 state) | |
| 639 | depth (nth 2 state) | |
| 640 | pcol (nth 3 state) | |
| 641 | indent (nth 4 state)) | |
| 642 | ;; skip heredoc section | |
| 643 | (if (re-search-forward (concat "^" re "$") end 'move) | |
| 644 | (forward-line 1) | |
| 645 | (setq in-string id-end) | |
| 646 | (goto-char end)))) | |
| 647 | (t | |
| 648 | (goto-char pnt)))) | |
| 649 | ((looking-at "^__END__$") | |
| 650 | (goto-char pnt)) | |
| 651 | ((and (looking-at ruby-here-doc-beg-re) | |
| 652 | (boundp 'ruby-indent-point)) | |
| 653 | (if (re-search-forward (ruby-here-doc-end-match) | |
| 654 | ruby-indent-point t) | |
| 655 | (forward-line 1) | |
| 656 | (setq in-string (match-end 0)) | |
| 657 | (goto-char ruby-indent-point))) | |
| 658 | (t | |
| 659 | (error (format "bad string %s" | |
| 660 | (buffer-substring (point) pnt) | |
| 661 | )))))) | |
| 662 | (list in-string nest depth pcol)) | |
| 663 | ||
| 664 | (defun ruby-parse-region (start end) | |
| 665 | "TODO: document." | |
| 666 | (let (state) | |
| 667 | (save-excursion | |
| 668 | (if start | |
| 669 | (goto-char start) | |
| 670 | (ruby-beginning-of-indent)) | |
| 671 | (save-restriction | |
| 672 | (narrow-to-region (point) end) | |
| 673 | (while (and (> end (point)) | |
| 674 | (setq state (apply 'ruby-parse-partial end state)))))) | |
| 675 | (list (nth 0 state) ; in-string | |
| 676 | (car (nth 1 state)) ; nest | |
| 677 | (nth 2 state) ; depth | |
| 678 | (car (car (nth 3 state))) ; pcol | |
| 679 | ;(car (nth 5 state)) ; indent | |
| 680 | ))) | |
| 681 | ||
| 682 | (defun ruby-indent-size (pos nest) | |
| ee61fe97 | 683 | "Return the indentation level in spaces NEST levels deeper than POS." |
| c7fbbc3c CY |
684 | (+ pos (* (or nest 1) ruby-indent-level))) |
| 685 | ||
| 686 | (defun ruby-calculate-indent (&optional parse-start) | |
| ee61fe97 | 687 | "Return the proper indentation level of the current line." |
| c7fbbc3c CY |
688 | ;; TODO: Document body |
| 689 | (save-excursion | |
| 690 | (beginning-of-line) | |
| 691 | (let ((ruby-indent-point (point)) | |
| 692 | (case-fold-search nil) | |
| cf38dd42 | 693 | state eol begin op-end |
| c7fbbc3c CY |
694 | (paren (progn (skip-syntax-forward " ") |
| 695 | (and (char-after) (matching-paren (char-after))))) | |
| 696 | (indent 0)) | |
| 697 | (if parse-start | |
| 698 | (goto-char parse-start) | |
| 699 | (ruby-beginning-of-indent) | |
| 700 | (setq parse-start (point))) | |
| 701 | (back-to-indentation) | |
| 702 | (setq indent (current-column)) | |
| 703 | (setq state (ruby-parse-region parse-start ruby-indent-point)) | |
| 704 | (cond | |
| 705 | ((nth 0 state) ; within string | |
| 706 | (setq indent nil)) ; do nothing | |
| 707 | ((car (nth 1 state)) ; in paren | |
| 708 | (goto-char (setq begin (cdr (nth 1 state)))) | |
| 709 | (let ((deep (ruby-deep-indent-paren-p (car (nth 1 state))))) | |
| 710 | (if deep | |
| 711 | (cond ((and (eq deep t) (eq (car (nth 1 state)) paren)) | |
| 712 | (skip-syntax-backward " ") | |
| 713 | (setq indent (1- (current-column)))) | |
| 714 | ((let ((s (ruby-parse-region (point) ruby-indent-point))) | |
| 715 | (and (nth 2 s) (> (nth 2 s) 0) | |
| 716 | (or (goto-char (cdr (nth 1 s))) t))) | |
| 717 | (forward-word -1) | |
| 718 | (setq indent (ruby-indent-size (current-column) | |
| 719 | (nth 2 state)))) | |
| 720 | (t | |
| 721 | (setq indent (current-column)) | |
| 722 | (cond ((eq deep 'space)) | |
| 723 | (paren (setq indent (1- indent))) | |
| 724 | (t (setq indent (ruby-indent-size (1- indent) 1)))))) | |
| 725 | (if (nth 3 state) (goto-char (nth 3 state)) | |
| 726 | (goto-char parse-start) (back-to-indentation)) | |
| 727 | (setq indent (ruby-indent-size (current-column) (nth 2 state)))) | |
| 728 | (and (eq (car (nth 1 state)) paren) | |
| 729 | (ruby-deep-indent-paren-p (matching-paren paren)) | |
| 730 | (search-backward (char-to-string paren)) | |
| 731 | (setq indent (current-column))))) | |
| 732 | ((and (nth 2 state) (> (nth 2 state) 0)) ; in nest | |
| 733 | (if (null (cdr (nth 1 state))) | |
| 734 | (error "invalid nest")) | |
| 735 | (goto-char (cdr (nth 1 state))) | |
| 736 | (forward-word -1) ; skip back a keyword | |
| 737 | (setq begin (point)) | |
| 738 | (cond | |
| 739 | ((looking-at "do\\>[^_]") ; iter block is a special case | |
| 740 | (if (nth 3 state) (goto-char (nth 3 state)) | |
| 741 | (goto-char parse-start) (back-to-indentation)) | |
| 742 | (setq indent (ruby-indent-size (current-column) (nth 2 state)))) | |
| 743 | (t | |
| 744 | (setq indent (+ (current-column) ruby-indent-level))))) | |
| ee61fe97 | 745 | |
| c7fbbc3c CY |
746 | ((and (nth 2 state) (< (nth 2 state) 0)) ; in negative nest |
| 747 | (setq indent (ruby-indent-size (current-column) (nth 2 state))))) | |
| 748 | (when indent | |
| 749 | (goto-char ruby-indent-point) | |
| 750 | (end-of-line) | |
| 751 | (setq eol (point)) | |
| 752 | (beginning-of-line) | |
| 753 | (cond | |
| 754 | ((and (not (ruby-deep-indent-paren-p paren)) | |
| 755 | (re-search-forward ruby-negative eol t)) | |
| 756 | (and (not (eq ?_ (char-after (match-end 0)))) | |
| 757 | (setq indent (- indent ruby-indent-level)))) | |
| 758 | ((and | |
| 759 | (save-excursion | |
| 760 | (beginning-of-line) | |
| 761 | (not (bobp))) | |
| 762 | (or (ruby-deep-indent-paren-p t) | |
| 763 | (null (car (nth 1 state))))) | |
| 764 | ;; goto beginning of non-empty no-comment line | |
| 765 | (let (end done) | |
| 766 | (while (not done) | |
| 767 | (skip-chars-backward " \t\n") | |
| 768 | (setq end (point)) | |
| 769 | (beginning-of-line) | |
| 770 | (if (re-search-forward "^\\s *#" end t) | |
| 771 | (beginning-of-line) | |
| 772 | (setq done t)))) | |
| c7fbbc3c CY |
773 | (end-of-line) |
| 774 | ;; skip the comment at the end | |
| 775 | (skip-chars-backward " \t") | |
| 776 | (let (end (pos (point))) | |
| 777 | (beginning-of-line) | |
| 778 | (while (and (re-search-forward "#" pos t) | |
| 779 | (setq end (1- (point))) | |
| 780 | (or (ruby-special-char-p end) | |
| 781 | (and (setq state (ruby-parse-region parse-start end)) | |
| 782 | (nth 0 state)))) | |
| 783 | (setq end nil)) | |
| 784 | (goto-char (or end pos)) | |
| 785 | (skip-chars-backward " \t") | |
| 786 | (setq begin (if (and end (nth 0 state)) pos (cdr (nth 1 state)))) | |
| 787 | (setq state (ruby-parse-region parse-start (point)))) | |
| 788 | (or (bobp) (forward-char -1)) | |
| 789 | (and | |
| 790 | (or (and (looking-at ruby-symbol-re) | |
| 791 | (skip-chars-backward ruby-symbol-chars) | |
| 792 | (looking-at (concat "\\<\\(" ruby-block-hanging-re "\\)\\>")) | |
| 793 | (not (eq (point) (nth 3 state))) | |
| 794 | (save-excursion | |
| 795 | (goto-char (match-end 0)) | |
| 796 | (not (looking-at "[a-z_]")))) | |
| 797 | (and (looking-at ruby-operator-re) | |
| 798 | (not (ruby-special-char-p)) | |
| dfbd787f | 799 | ;; Operator at the end of line. |
| c7fbbc3c CY |
800 | (let ((c (char-after (point)))) |
| 801 | (and | |
| 802 | ;; (or (null begin) | |
| 803 | ;; (save-excursion | |
| 804 | ;; (goto-char begin) | |
| 805 | ;; (skip-chars-forward " \t") | |
| 806 | ;; (not (or (eolp) (looking-at "#") | |
| 807 | ;; (and (eq (car (nth 1 state)) ?{) | |
| 808 | ;; (looking-at "|")))))) | |
| e636fafe | 809 | ;; Not a regexp or percent literal. |
| dfbd787f SM |
810 | (null (nth 0 (ruby-parse-region (or begin parse-start) |
| 811 | (point)))) | |
| c7fbbc3c CY |
812 | (or (not (eq ?| (char-after (point)))) |
| 813 | (save-excursion | |
| 814 | (or (eolp) (forward-char -1)) | |
| 815 | (cond | |
| 816 | ((search-backward "|" nil t) | |
| 817 | (skip-chars-backward " \t\n") | |
| 818 | (and (not (eolp)) | |
| 819 | (progn | |
| 820 | (forward-char -1) | |
| 821 | (not (looking-at "{"))) | |
| 822 | (progn | |
| 823 | (forward-word -1) | |
| 824 | (not (looking-at "do\\>[^_]"))))) | |
| 825 | (t t)))) | |
| 826 | (not (eq ?, c)) | |
| 827 | (setq op-end t))))) | |
| 828 | (setq indent | |
| 829 | (cond | |
| 830 | ((and | |
| 831 | (null op-end) | |
| 832 | (not (looking-at (concat "\\<\\(" ruby-block-hanging-re "\\)\\>"))) | |
| 833 | (eq (ruby-deep-indent-paren-p t) 'space) | |
| 834 | (not (bobp))) | |
| 835 | (widen) | |
| 836 | (goto-char (or begin parse-start)) | |
| 837 | (skip-syntax-forward " ") | |
| 838 | (current-column)) | |
| 839 | ((car (nth 1 state)) indent) | |
| 840 | (t | |
| 841 | (+ indent ruby-indent-level)))))))) | |
| 842 | (goto-char ruby-indent-point) | |
| 843 | (beginning-of-line) | |
| 844 | (skip-syntax-forward " ") | |
| 845 | (if (looking-at "\\.[^.]") | |
| 846 | (+ indent ruby-indent-level) | |
| 847 | indent)))) | |
| 848 | ||
| c7fbbc3c CY |
849 | (defun ruby-beginning-of-defun (&optional arg) |
| 850 | "Move backward to the beginning of the current top-level defun. | |
| ee61fe97 | 851 | With ARG, move backward multiple defuns. Negative ARG means |
| c7fbbc3c CY |
852 | move forward." |
| 853 | (interactive "p") | |
| 8f06acce | 854 | (and (re-search-backward (concat "^\\s *" ruby-defun-beg-re "\\_>") |
| d81ceaaf | 855 | nil t (or arg 1)) |
| c7fbbc3c CY |
856 | (beginning-of-line))) |
| 857 | ||
| 858 | (defun ruby-end-of-defun (&optional arg) | |
| 859 | "Move forward to the end of the current top-level defun. | |
| ee61fe97 | 860 | With ARG, move forward multiple defuns. Negative ARG means |
| c7fbbc3c CY |
861 | move backward." |
| 862 | (interactive "p") | |
| 8f06acce DG |
863 | (ruby-forward-sexp) |
| 864 | (when (looking-back (concat "^\\s *" ruby-block-end-re)) | |
| 865 | (forward-line 1))) | |
| c7fbbc3c CY |
866 | |
| 867 | (defun ruby-beginning-of-indent () | |
| 0ba2d4b6 DG |
868 | "Backtrack to a line which can be used as a reference for |
| 869 | calculating indentation on the lines after it." | |
| 870 | (while (and (re-search-backward ruby-indent-beg-re nil 'move) | |
| 871 | (if (ruby-in-ppss-context-p 'anything) | |
| 872 | t | |
| 873 | ;; We can stop, then. | |
| 874 | (beginning-of-line))))) | |
| c7fbbc3c CY |
875 | |
| 876 | (defun ruby-move-to-block (n) | |
| 5e9419e8 DG |
877 | "Move to the beginning (N < 0) or the end (N > 0) of the |
| 878 | current block, a sibling block, or an outer block. Do that (abs N) times." | |
| 0d9e2599 NN |
879 | (let ((orig (point)) |
| 880 | (start (ruby-calculate-indent)) | |
| 5e9419e8 DG |
881 | (signum (if (> n 0) 1 -1)) |
| 882 | (backward (< n 0)) | |
| 883 | down pos done) | |
| 884 | (dotimes (_ (abs n)) | |
| 885 | (setq done nil) | |
| 886 | (setq down (save-excursion | |
| 887 | (back-to-indentation) | |
| 888 | ;; There is a block start or block end keyword on this | |
| 889 | ;; line, don't need to look for another block. | |
| 890 | (and (re-search-forward | |
| 891 | (if backward ruby-block-end-re | |
| 892 | (concat "\\_<\\(" ruby-block-beg-re "\\)\\_>")) | |
| 893 | (line-end-position) t) | |
| 894 | (not (nth 8 (syntax-ppss)))))) | |
| 895 | (while (and (not done) (not (if backward (bobp) (eobp)))) | |
| 896 | (forward-line signum) | |
| c7fbbc3c | 897 | (cond |
| 5e9419e8 DG |
898 | ;; Skip empty and commented out lines. |
| 899 | ((looking-at "^\\s *$")) | |
| 900 | ((looking-at "^\\s *#")) | |
| 901 | ;; Skip block comments; | |
| 902 | ((and (not backward) (looking-at "^=begin\\>")) | |
| 903 | (re-search-forward "^=end\\>")) | |
| 904 | ((and backward (looking-at "^=end\\>")) | |
| 905 | (re-search-backward "^=begin\\>")) | |
| 906 | (t | |
| 907 | (setq pos (current-indentation)) | |
| 908 | (cond | |
| 7831fb1b | 909 | ;; Deeper indentation, we found a block. |
| 5e9419e8 DG |
910 | ;; FIXME: We can't recognize empty blocks this way. |
| 911 | ((< start pos) | |
| 912 | (setq down t)) | |
| 913 | ;; Block found, and same indentation as when started, stop. | |
| 914 | ((and down (= pos start)) | |
| 915 | (setq done t)) | |
| 916 | ;; Shallower indentation, means outer block, can stop now. | |
| 917 | ((> start pos) | |
| 918 | (setq done t))))) | |
| 919 | (if done | |
| 920 | (save-excursion | |
| 921 | (back-to-indentation) | |
| 922 | ;; Not really at the first or last line of the block, move on. | |
| 923 | (if (looking-at (concat "\\<\\(" ruby-block-mid-re "\\)\\>")) | |
| 924 | (setq done nil)))))) | |
| d1e1e53d | 925 | (back-to-indentation))) |
| c7fbbc3c CY |
926 | |
| 927 | (defun ruby-beginning-of-block (&optional arg) | |
| 928 | "Move backward to the beginning of the current block. | |
| 929 | With ARG, move up multiple blocks." | |
| 930 | (interactive "p") | |
| 931 | (ruby-move-to-block (- (or arg 1)))) | |
| 932 | ||
| 933 | (defun ruby-end-of-block (&optional arg) | |
| 934 | "Move forward to the end of the current block. | |
| 935 | With ARG, move out of multiple blocks." | |
| 5e9419e8 | 936 | (interactive "p") |
| c7fbbc3c CY |
937 | (ruby-move-to-block (or arg 1))) |
| 938 | ||
| 939 | (defun ruby-forward-sexp (&optional arg) | |
| 940 | "Move forward across one balanced expression (sexp). | |
| ee61fe97 | 941 | With ARG, do it many times. Negative ARG means move backward." |
| c7fbbc3c CY |
942 | ;; TODO: Document body |
| 943 | (interactive "p") | |
| 944 | (if (and (numberp arg) (< arg 0)) | |
| 945 | (ruby-backward-sexp (- arg)) | |
| 946 | (let ((i (or arg 1))) | |
| 947 | (condition-case nil | |
| 948 | (while (> i 0) | |
| 949 | (skip-syntax-forward " ") | |
| cc9c9831 | 950 | (if (looking-at ",\\s *") (goto-char (match-end 0))) |
| c7fbbc3c CY |
951 | (cond ((looking-at "\\?\\(\\\\[CM]-\\)*\\\\?\\S ") |
| 952 | (goto-char (match-end 0))) | |
| 953 | ((progn | |
| 954 | (skip-chars-forward ",.:;|&^~=!?\\+\\-\\*") | |
| 955 | (looking-at "\\s(")) | |
| 956 | (goto-char (scan-sexps (point) 1))) | |
| 957 | ((and (looking-at (concat "\\<\\(" ruby-block-beg-re "\\)\\>")) | |
| 958 | (not (eq (char-before (point)) ?.)) | |
| 959 | (not (eq (char-before (point)) ?:))) | |
| 960 | (ruby-end-of-block) | |
| 961 | (forward-word 1)) | |
| 962 | ((looking-at "\\(\\$\\|@@?\\)?\\sw") | |
| 963 | (while (progn | |
| 964 | (while (progn (forward-word 1) (looking-at "_"))) | |
| 965 | (cond ((looking-at "::") (forward-char 2) t) | |
| 966 | ((> (skip-chars-forward ".") 0)) | |
| 967 | ((looking-at "\\?\\|!\\(=[~=>]\\|[^~=]\\)") | |
| 968 | (forward-char 1) nil))))) | |
| 969 | ((let (state expr) | |
| 970 | (while | |
| 971 | (progn | |
| 972 | (setq expr (or expr (ruby-expr-beg) | |
| 973 | (looking-at "%\\sw?\\Sw\\|[\"'`/]"))) | |
| 974 | (nth 1 (setq state (apply 'ruby-parse-partial nil state)))) | |
| 975 | (setq expr t) | |
| 976 | (skip-chars-forward "<")) | |
| 977 | (not expr)))) | |
| 978 | (setq i (1- i))) | |
| 979 | ((error) (forward-word 1))) | |
| 980 | i))) | |
| 981 | ||
| 982 | (defun ruby-backward-sexp (&optional arg) | |
| 983 | "Move backward across one balanced expression (sexp). | |
| ee61fe97 | 984 | With ARG, do it many times. Negative ARG means move forward." |
| c7fbbc3c CY |
985 | ;; TODO: Document body |
| 986 | (interactive "p") | |
| 987 | (if (and (numberp arg) (< arg 0)) | |
| 988 | (ruby-forward-sexp (- arg)) | |
| 989 | (let ((i (or arg 1))) | |
| 990 | (condition-case nil | |
| 991 | (while (> i 0) | |
| 992 | (skip-chars-backward " \t\n,.:;|&^~=!?\\+\\-\\*") | |
| 993 | (forward-char -1) | |
| 994 | (cond ((looking-at "\\s)") | |
| 995 | (goto-char (scan-sexps (1+ (point)) -1)) | |
| 996 | (case (char-before) | |
| 997 | (?% (forward-char -1)) | |
| 0adf5618 | 998 | ((?q ?Q ?w ?W ?r ?x) |
| c7fbbc3c CY |
999 | (if (eq (char-before (1- (point))) ?%) (forward-char -2)))) |
| 1000 | nil) | |
| 1001 | ((looking-at "\\s\"\\|\\\\\\S_") | |
| 1002 | (let ((c (char-to-string (char-before (match-end 0))))) | |
| 1003 | (while (and (search-backward c) | |
| 1004 | (eq (logand (skip-chars-backward "\\") 1) | |
| 1005 | 1)))) | |
| 1006 | nil) | |
| 1007 | ((looking-at "\\s.\\|\\s\\") | |
| 1008 | (if (ruby-special-char-p) (forward-char -1))) | |
| 1009 | ((looking-at "\\s(") nil) | |
| 1010 | (t | |
| 1011 | (forward-char 1) | |
| 1012 | (while (progn (forward-word -1) | |
| 1013 | (case (char-before) | |
| 1014 | (?_ t) | |
| 1015 | (?. (forward-char -1) t) | |
| 1016 | ((?$ ?@) | |
| 1017 | (forward-char -1) | |
| 1018 | (and (eq (char-before) (char-after)) (forward-char -1))) | |
| 1019 | (?: | |
| 1020 | (forward-char -1) | |
| 1021 | (eq (char-before) :))))) | |
| 1022 | (if (looking-at ruby-block-end-re) | |
| 1023 | (ruby-beginning-of-block)) | |
| 1024 | nil)) | |
| 1025 | (setq i (1- i))) | |
| 1026 | ((error))) | |
| 1027 | i))) | |
| 1028 | ||
| cf38dd42 SM |
1029 | (defun ruby-indent-exp (&optional ignored) |
| 1030 | "Indent each line in the balanced expression following the point." | |
| c7fbbc3c CY |
1031 | (interactive "*P") |
| 1032 | (let ((here (point-marker)) start top column (nest t)) | |
| 1033 | (set-marker-insertion-type here t) | |
| 1034 | (unwind-protect | |
| 1035 | (progn | |
| 1036 | (beginning-of-line) | |
| 1037 | (setq start (point) top (current-indentation)) | |
| 1038 | (while (and (not (eobp)) | |
| 1039 | (progn | |
| 1040 | (setq column (ruby-calculate-indent start)) | |
| 1041 | (cond ((> column top) | |
| 1042 | (setq nest t)) | |
| 1043 | ((and (= column top) nest) | |
| 1044 | (setq nest nil) t)))) | |
| 1045 | (ruby-indent-to column) | |
| 1046 | (beginning-of-line 2))) | |
| 1047 | (goto-char here) | |
| 1048 | (set-marker here nil)))) | |
| 1049 | ||
| 1050 | (defun ruby-add-log-current-method () | |
| ee61fe97 | 1051 | "Return the current method name as a string. |
| c7fbbc3c CY |
1052 | This string includes all namespaces. |
| 1053 | ||
| 1054 | For example: | |
| 1055 | ||
| 1056 | #exit | |
| 1057 | String#gsub | |
| 1058 | Net::HTTP#active? | |
| 5745cae6 | 1059 | File.open |
| c7fbbc3c CY |
1060 | |
| 1061 | See `add-log-current-defun-function'." | |
| c7fbbc3c CY |
1062 | (condition-case nil |
| 1063 | (save-excursion | |
| bb808526 DG |
1064 | (let ((indent 0) mname mlist |
| 1065 | (start (point)) | |
| 1066 | (definition-re | |
| 1067 | (concat "^[ \t]*" ruby-defun-beg-re "[ \t]+" | |
| 1068 | "\\(" | |
| 1069 | ;; \\. and :: for class methods | |
| 1070 | "\\([A-Za-z_]" ruby-symbol-re "*\\|\\.\\|::" "\\)" | |
| 1071 | "+\\)"))) | |
| 5745cae6 | 1072 | ;; Get the current method definition (or class/module). |
| bb808526 DG |
1073 | (when (re-search-backward definition-re nil t) |
| 1074 | (goto-char (match-beginning 1)) | |
| 1075 | (when (ruby-block-contains-point start) | |
| 1076 | ;; We're inside the method, class or module. | |
| 1077 | (setq mname (match-string 2)) | |
| 1078 | (unless (string-equal "def" (match-string 1)) | |
| 1079 | (setq mlist (list mname) mname nil))) | |
| 1080 | (setq indent (current-column)) | |
| 1081 | (beginning-of-line)) | |
| 5745cae6 | 1082 | ;; Walk up the class/module nesting. |
| c7fbbc3c | 1083 | (while (and (> indent 0) |
| bb808526 | 1084 | (re-search-backward definition-re nil t)) |
| c7fbbc3c | 1085 | (goto-char (match-beginning 1)) |
| bb808526 DG |
1086 | (when (ruby-block-contains-point start) |
| 1087 | (setq mlist (cons (match-string 2) mlist)) | |
| 1088 | (setq indent (current-column)) | |
| 1089 | (beginning-of-line))) | |
| 5745cae6 | 1090 | ;; Process the method name. |
| c7fbbc3c CY |
1091 | (when mname |
| 1092 | (let ((mn (split-string mname "\\.\\|::"))) | |
| 1093 | (if (cdr mn) | |
| 1094 | (progn | |
| 5745cae6 DG |
1095 | (unless (string-equal "self" (car mn)) ; def self.foo |
| 1096 | ;; def C.foo | |
| 1097 | (let ((ml (nreverse mlist))) | |
| 1098 | ;; If the method name references one of the | |
| 1099 | ;; containing modules, drop the more nested ones. | |
| c7fbbc3c CY |
1100 | (while ml |
| 1101 | (if (string-equal (car ml) (car mn)) | |
| 1102 | (setq mlist (nreverse (cdr ml)) ml nil)) | |
| 5745cae6 DG |
1103 | (or (setq ml (cdr ml)) (nreverse mlist)))) |
| 1104 | (if mlist | |
| 1105 | (setcdr (last mlist) (butlast mn)) | |
| 1106 | (setq mlist (butlast mn)))) | |
| 1107 | (setq mname (concat "." (car (last mn))))) | |
| bb808526 DG |
1108 | ;; See if the method is in singleton class context. |
| 1109 | (let ((in-singleton-class | |
| 1110 | (when (re-search-forward ruby-singleton-class-re start t) | |
| 1111 | (goto-char (match-beginning 0)) | |
| 1112 | (ruby-block-contains-point start)))) | |
| 1113 | (setq mname (concat | |
| 1114 | (if in-singleton-class "." "#") | |
| 1115 | mname)))))) | |
| 5745cae6 | 1116 | ;; Generate the string. |
| c7fbbc3c CY |
1117 | (if (consp mlist) |
| 1118 | (setq mlist (mapconcat (function identity) mlist "::"))) | |
| 1119 | (if mname | |
| 1120 | (if mlist (concat mlist mname) mname) | |
| 1121 | mlist))))) | |
| 1122 | ||
| bb808526 DG |
1123 | (defun ruby-block-contains-point (pt) |
| 1124 | (save-excursion | |
| 1125 | (save-match-data | |
| 1126 | (ruby-forward-sexp) | |
| 1127 | (> (point) pt)))) | |
| 1128 | ||
| c3268831 DG |
1129 | (defun ruby-brace-to-do-end (orig end) |
| 1130 | (let (beg-marker end-marker) | |
| 1131 | (goto-char end) | |
| 1132 | (when (eq (char-before) ?\}) | |
| 1133 | (delete-char -1) | |
| 32fb8162 DG |
1134 | (when (save-excursion |
| 1135 | (skip-chars-backward " \t") | |
| 1136 | (not (bolp))) | |
| c3268831 DG |
1137 | (insert "\n")) |
| 1138 | (insert "end") | |
| 1139 | (setq end-marker (point-marker)) | |
| 1140 | (when (and (not (eobp)) (eq (char-syntax (char-after)) ?w)) | |
| 1141 | (insert " ")) | |
| 1142 | (goto-char orig) | |
| 1143 | (delete-char 1) | |
| 1144 | (when (eq (char-syntax (char-before)) ?w) | |
| 1145 | (insert " ")) | |
| 1146 | (insert "do") | |
| 1147 | (setq beg-marker (point-marker)) | |
| 1148 | (when (looking-at "\\(\\s \\)*|") | |
| 1149 | (unless (match-beginning 1) | |
| 1150 | (insert " ")) | |
| 1151 | (goto-char (1+ (match-end 0))) | |
| 1152 | (search-forward "|")) | |
| 1153 | (unless (looking-at "\\s *$") | |
| 1154 | (insert "\n")) | |
| 1155 | (indent-region beg-marker end-marker) | |
| 1156 | (goto-char beg-marker) | |
| 1157 | t))) | |
| 1158 | ||
| 1159 | (defun ruby-do-end-to-brace (orig end) | |
| 32fb8162 DG |
1160 | (let (beg-marker end-marker beg-pos end-pos) |
| 1161 | (goto-char (- end 3)) | |
| 1162 | (when (looking-at ruby-block-end-re) | |
| 1163 | (delete-char 3) | |
| 1164 | (setq end-marker (point-marker)) | |
| 1165 | (insert "}") | |
| 1166 | (goto-char orig) | |
| 1167 | (delete-char 2) | |
| 1168 | (insert "{") | |
| 1169 | (setq beg-marker (point-marker)) | |
| 1170 | (when (looking-at "\\s +|") | |
| 1171 | (delete-char (- (match-end 0) (match-beginning 0) 1)) | |
| 1172 | (forward-char) | |
| 1173 | (re-search-forward "|" (line-end-position) t)) | |
| 1174 | (save-excursion | |
| 1175 | (skip-chars-forward " \t\n\r") | |
| 1176 | (setq beg-pos (point)) | |
| 1177 | (goto-char end-marker) | |
| 1178 | (skip-chars-backward " \t\n\r") | |
| 1179 | (setq end-pos (point))) | |
| 1180 | (when (or | |
| 1181 | (< end-pos beg-pos) | |
| 1182 | (and (= (line-number-at-pos beg-pos) (line-number-at-pos end-pos)) | |
| 1183 | (< (+ (current-column) (- end-pos beg-pos) 2) fill-column))) | |
| 1184 | (just-one-space -1) | |
| 1185 | (goto-char end-marker) | |
| 1186 | (just-one-space -1)) | |
| 1187 | (goto-char beg-marker) | |
| 1188 | t))) | |
| 0d9e2599 NN |
1189 | |
| 1190 | (defun ruby-toggle-block () | |
| c3268831 DG |
1191 | "Toggle block type from do-end to braces or back. |
| 1192 | The block must begin on the current line or above it and end after the point. | |
| 1193 | If the result is do-end block, it will always be multiline." | |
| 0d9e2599 | 1194 | (interactive) |
| c3268831 DG |
1195 | (let ((start (point)) beg end) |
| 1196 | (end-of-line) | |
| 1197 | (unless | |
| 1198 | (if (and (re-search-backward "\\({\\)\\|\\_<do\\(\\s \\|$\\||\\)") | |
| 1199 | (progn | |
| 1200 | (setq beg (point)) | |
| 1201 | (save-match-data (ruby-forward-sexp)) | |
| 1202 | (setq end (point)) | |
| 1203 | (> end start))) | |
| 1204 | (if (match-beginning 1) | |
| 1205 | (ruby-brace-to-do-end beg end) | |
| 1206 | (ruby-do-end-to-brace beg end))) | |
| 1207 | (goto-char start)))) | |
| 0d9e2599 | 1208 | |
| f4ff702e | 1209 | (declare-function ruby-syntax-propertize-heredoc "ruby-mode" (limit)) |
| e636fafe DG |
1210 | (declare-function ruby-syntax-enclosing-percent-literal "ruby-mode" (limit)) |
| 1211 | (declare-function ruby-syntax-propertize-percent-literal "ruby-mode" (limit)) | |
| f4ff702e | 1212 | |
| cf38dd42 SM |
1213 | (if (eval-when-compile (fboundp #'syntax-propertize-rules)) |
| 1214 | ;; New code that works independently from font-lock. | |
| 1215 | (progn | |
| e636fafe DG |
1216 | (eval-and-compile |
| 1217 | (defconst ruby-percent-literal-beg-re | |
| 1218 | "\\(%\\)[qQrswWx]?\\([[:punct:]]\\)" | |
| f063063a DG |
1219 | "Regexp to match the beginning of percent literal.") |
| 1220 | ||
| 1221 | (defconst ruby-syntax-methods-before-regexp | |
| 1222 | '("gsub" "gsub!" "sub" "sub!" "scan" "split" "split!" "index" "match" | |
| 1223 | "assert_match" "Given" "Then" "When") | |
| 1224 | "Methods that can take regexp as the first argument. | |
| 1225 | It will be properly highlighted even when the call omits parens.")) | |
| e636fafe | 1226 | |
| cf38dd42 SM |
1227 | (defun ruby-syntax-propertize-function (start end) |
| 1228 | "Syntactic keywords for Ruby mode. See `syntax-propertize-function'." | |
| 1229 | (goto-char start) | |
| 1230 | (ruby-syntax-propertize-heredoc end) | |
| e636fafe | 1231 | (ruby-syntax-enclosing-percent-literal end) |
| cf38dd42 SM |
1232 | (funcall |
| 1233 | (syntax-propertize-rules | |
| dfbd787f SM |
1234 | ;; $' $" $` .... are variables. |
| 1235 | ;; ?' ?" ?` are ascii codes. | |
| 21bb5ce0 SM |
1236 | ("\\([?$]\\)[#\"'`]" |
| 1237 | (1 (unless (save-excursion | |
| 1238 | ;; Not within a string. | |
| 1239 | (nth 3 (syntax-ppss (match-beginning 0)))) | |
| 1240 | (string-to-syntax "\\")))) | |
| f063063a DG |
1241 | ;; Regexps: regexps are distinguished from division because |
| 1242 | ;; of the keyword, symbol, or method name before them. | |
| dfbd787f SM |
1243 | ((concat |
| 1244 | ;; Special tokens that can't be followed by a division operator. | |
| f063063a DG |
1245 | "\\(^\\|[[=(,~?:;<>]" |
| 1246 | ;; Control flow keywords and operators following bol or whitespace. | |
| 1247 | "\\|\\(?:^\\|\\s \\)" | |
| dfbd787f | 1248 | (regexp-opt '("if" "elsif" "unless" "while" "until" "when" "and" |
| f063063a DG |
1249 | "or" "not" "&&" "||")) |
| 1250 | ;; Method name from the list. | |
| 1251 | "\\|\\_<" | |
| 1252 | (regexp-opt ruby-syntax-methods-before-regexp) | |
| 1253 | "\\)\\s *" | |
| dfbd787f | 1254 | ;; The regular expression itself. |
| f063063a DG |
1255 | "\\(/\\)[^/\n\\\\]*\\(?:\\\\.[^/\n\\\\]*\\)*\\(/\\)") |
| 1256 | (2 (string-to-syntax "\"/")) | |
| 1257 | (3 (string-to-syntax "\"/"))) | |
| cf38dd42 SM |
1258 | ("^=en\\(d\\)\\_>" (1 "!")) |
| 1259 | ("^\\(=\\)begin\\_>" (1 "!")) | |
| 1260 | ;; Handle here documents. | |
| 1261 | ((concat ruby-here-doc-beg-re ".*\\(\n\\)") | |
| 9cd80478 DG |
1262 | (7 (unless (ruby-singleton-class-p (match-beginning 0)) |
| 1263 | (put-text-property (match-beginning 7) (match-end 7) | |
| 1264 | 'syntax-table (string-to-syntax "\"")) | |
| 1265 | (ruby-syntax-propertize-heredoc end)))) | |
| 85222d44 | 1266 | ;; Handle percent literals: %w(), %q{}, etc. |
| e636fafe DG |
1267 | ((concat "\\(?:^\\|[[ \t\n<+(,=]\\)" ruby-percent-literal-beg-re) |
| 1268 | (1 (prog1 "|" (ruby-syntax-propertize-percent-literal end))))) | |
| c62792e7 | 1269 | (point) end) |
| dbb530d9 | 1270 | (ruby-syntax-propertize-expansions start end)) |
| cf38dd42 SM |
1271 | |
| 1272 | (defun ruby-syntax-propertize-heredoc (limit) | |
| 1273 | (let ((ppss (syntax-ppss)) | |
| 1274 | (res '())) | |
| 1275 | (when (eq ?\n (nth 3 ppss)) | |
| 1276 | (save-excursion | |
| 1277 | (goto-char (nth 8 ppss)) | |
| 1278 | (beginning-of-line) | |
| 1279 | (while (re-search-forward ruby-here-doc-beg-re | |
| 1280 | (line-end-position) t) | |
| 9cd80478 DG |
1281 | (unless (ruby-singleton-class-p (match-beginning 0)) |
| 1282 | (push (concat (ruby-here-doc-end-match) "\n") res)))) | |
| cf38dd42 SM |
1283 | (let ((start (point))) |
| 1284 | ;; With multiple openers on the same line, we don't know in which | |
| 1285 | ;; part `start' is, so we have to go back to the beginning. | |
| 1286 | (when (cdr res) | |
| 1287 | (goto-char (nth 8 ppss)) | |
| 1288 | (setq res (nreverse res))) | |
| 1289 | (while (and res (re-search-forward (pop res) limit 'move)) | |
| 1290 | (if (null res) | |
| 1291 | (put-text-property (1- (point)) (point) | |
| 1292 | 'syntax-table (string-to-syntax "\"")))) | |
| 1293 | ;; Make extra sure we don't move back, lest we could fall into an | |
| 1294 | ;; inf-loop. | |
| 1295 | (if (< (point) start) (goto-char start)))))) | |
| 85222d44 | 1296 | |
| e636fafe DG |
1297 | (defun ruby-syntax-enclosing-percent-literal (limit) |
| 1298 | (let ((state (syntax-ppss)) | |
| 1299 | (start (point))) | |
| 1300 | ;; When already inside percent literal, re-propertize it. | |
| 85222d44 DG |
1301 | (when (eq t (nth 3 state)) |
| 1302 | (goto-char (nth 8 state)) | |
| e636fafe DG |
1303 | (when (looking-at ruby-percent-literal-beg-re) |
| 1304 | (ruby-syntax-propertize-percent-literal limit)) | |
| 1305 | (when (< (point) start) (goto-char start))))) | |
| 85222d44 | 1306 | |
| e636fafe | 1307 | (defun ruby-syntax-propertize-percent-literal (limit) |
| 85222d44 | 1308 | (goto-char (match-beginning 2)) |
| e636fafe DG |
1309 | ;; Not inside a simple string or comment. |
| 1310 | (when (eq t (nth 3 (syntax-ppss))) | |
| 1311 | (let* ((op (char-after)) | |
| 1312 | (ops (char-to-string op)) | |
| 1313 | (cl (or (cdr (aref (syntax-table) op)) | |
| 1314 | (cdr (assoc op '((?< . ?>)))))) | |
| 1315 | parse-sexp-lookup-properties) | |
| 1316 | (condition-case nil | |
| 1317 | (progn | |
| 1318 | (if cl ; Paired delimiters. | |
| 1319 | ;; Delimiter pairs of the same kind can be nested | |
| 1320 | ;; inside the literal, as long as they are balanced. | |
| 1321 | ;; Create syntax table that ignores other characters. | |
| 1322 | (with-syntax-table (make-char-table 'syntax-table nil) | |
| 1323 | (modify-syntax-entry op (concat "(" (char-to-string cl))) | |
| 1324 | (modify-syntax-entry cl (concat ")" ops)) | |
| 1325 | (modify-syntax-entry ?\\ "\\") | |
| 1326 | (save-restriction | |
| 1327 | (narrow-to-region (point) limit) | |
| 1328 | (forward-list))) ; skip to the paired character | |
| 1329 | ;; Single character delimiter. | |
| 1330 | (re-search-forward (concat "[^\\]\\(?:\\\\\\\\\\)*" | |
| 1331 | (regexp-quote ops)) limit nil)) | |
| 1332 | ;; Found the closing delimiter. | |
| 1333 | (put-text-property (1- (point)) (point) 'syntax-table | |
| 1334 | (string-to-syntax "|"))) | |
| 1335 | ;; Unclosed literal, leave the following text unpropertized. | |
| 1336 | ((scan-error search-failed) (goto-char limit)))))) | |
| dbb530d9 DG |
1337 | |
| 1338 | (defun ruby-syntax-propertize-expansions (start end) | |
| 1339 | (remove-text-properties start end '(ruby-expansion-match-data)) | |
| 1340 | (goto-char start) | |
| 1341 | ;; Find all expression expansions and | |
| 1342 | ;; - save the match data to a text property, for font-locking later, | |
| cccaebd2 | 1343 | ;; - set the syntax of all double quotes and backticks to punctuation. |
| dbb530d9 DG |
1344 | (while (re-search-forward ruby-expression-expansion-re end 'move) |
| 1345 | (let ((beg (match-beginning 2)) | |
| 1346 | (end (match-end 2))) | |
| 1347 | (when (and beg (save-excursion (nth 3 (syntax-ppss beg)))) | |
| 1348 | (put-text-property beg (1+ beg) 'ruby-expansion-match-data | |
| 1349 | (match-data)) | |
| 1350 | (goto-char beg) | |
| 1351 | (while (re-search-forward "[\"`]" end 'move) | |
| 1352 | (put-text-property (match-beginning 0) (match-end 0) | |
| 1353 | 'syntax-table (string-to-syntax "."))))))) | |
| cf38dd42 | 1354 | ) |
| f4ff702e | 1355 | |
| cf38dd42 SM |
1356 | ;; For Emacsen where syntax-propertize-rules is not (yet) available, |
| 1357 | ;; fallback on the old font-lock-syntactic-keywords stuff. | |
| 1358 | ||
| 1359 | (defconst ruby-here-doc-end-re | |
| 1360 | "^\\([ \t]+\\)?\\(.*\\)\\(\n\\)" | |
| 1361 | "Regexp to match the end of heredocs. | |
| 1362 | ||
| 1363 | This will actually match any line with one or more characters. | |
| 1364 | It's useful in that it divides up the match string so that | |
| 1365 | `ruby-here-doc-beg-match' can search for the beginning of the heredoc.") | |
| 1366 | ||
| 1367 | (defun ruby-here-doc-beg-match () | |
| 1368 | "Return a regexp to find the beginning of a heredoc. | |
| 1369 | ||
| 1370 | This should only be called after matching against `ruby-here-doc-end-re'." | |
| 06d8ace5 GM |
1371 | (let ((contents (concat |
| 1372 | (regexp-quote (concat (match-string 2) (match-string 3))) | |
| 1373 | (if (string= (match-string 3) "_") "\\B" "\\b")))) | |
| cf38dd42 SM |
1374 | (concat "<<" |
| 1375 | (let ((match (match-string 1))) | |
| 1376 | (if (and match (> (length match) 0)) | |
| 06d8ace5 GM |
1377 | (concat "\\(?:-\\([\"']?\\)\\|\\([\"']\\)" |
| 1378 | (match-string 1) "\\)" | |
| 1379 | contents "\\(\\1\\|\\2\\)") | |
| 1380 | (concat "-?\\([\"']\\|\\)" contents "\\1")))))) | |
| cf38dd42 SM |
1381 | |
| 1382 | (defconst ruby-font-lock-syntactic-keywords | |
| 0ba2d4b6 | 1383 | `( |
| c7fbbc3c CY |
1384 | ;; the last $', $", $` in the respective string is not variable |
| 1385 | ;; the last ?', ?", ?` in the respective string is not ascii code | |
| 1386 | ("\\(^\\|[\[ \t\n<+\(,=]\\)\\(['\"`]\\)\\(\\\\.\\|\\2\\|[^'\"`\n\\\\]\\)*?\\\\?[?$]\\(\\2\\)" | |
| 1387 | (2 (7 . nil)) | |
| 1388 | (4 (7 . nil))) | |
| 1389 | ;; $' $" $` .... are variables | |
| 1390 | ;; ?' ?" ?` are ascii codes | |
| 1391 | ("\\(^\\|[^\\\\]\\)\\(\\\\\\\\\\)*[?$]\\([#\"'`]\\)" 3 (1 . nil)) | |
| 1392 | ;; regexps | |
| cc9c9831 | 1393 | ("\\(^\\|[[=(,~?:;<>]\\|\\(^\\|\\s \\)\\(if\\|elsif\\|unless\\|while\\|until\\|when\\|and\\|or\\|&&\\|||\\)\\|g?sub!?\\|scan\\|split!?\\)\\s *\\(/\\)[^/\n\\\\]*\\(\\\\.[^/\n\\\\]*\\)*\\(/\\)" |
| c7fbbc3c CY |
1394 | (4 (7 . ?/)) |
| 1395 | (6 (7 . ?/))) | |
| 1396 | ("^=en\\(d\\)\\_>" 1 "!") | |
| e636fafe | 1397 | ;; Percent literal. |
| 85222d44 DG |
1398 | ("\\(^\\|[[ \t\n<+(,=]\\)\\(%[xrqQwW]?\\([^<[{(a-zA-Z0-9 \n]\\)[^\n\\\\]*\\(\\\\.[^\n\\\\]*\\)*\\(\\3\\)\\)" |
| 1399 | (3 "\"") | |
| 1400 | (5 "\"")) | |
| c7fbbc3c CY |
1401 | ("^\\(=\\)begin\\_>" 1 (ruby-comment-beg-syntax)) |
| 1402 | ;; Currently, the following case is highlighted incorrectly: | |
| 1403 | ;; | |
| 1404 | ;; <<FOO | |
| 1405 | ;; FOO | |
| 1406 | ;; <<BAR | |
| 1407 | ;; <<BAZ | |
| 1408 | ;; BAZ | |
| 1409 | ;; BAR | |
| 1410 | ;; | |
| 1411 | ;; This is because all here-doc beginnings are highlighted before any endings, | |
| 1412 | ;; so although <<BAR is properly marked as a beginning, when we get to <<BAZ | |
| 1413 | ;; it thinks <<BAR is part of a string so it's marked as well. | |
| 1414 | ;; | |
| 1415 | ;; This may be fixable by modifying ruby-in-here-doc-p to use | |
| 1416 | ;; ruby-in-non-here-doc-string-p rather than syntax-ppss-context, | |
| 1417 | ;; but I don't want to try that until we've got unit tests set up | |
| 1418 | ;; to make sure I don't break anything else. | |
| 1419 | (,(concat ruby-here-doc-beg-re ".*\\(\n\\)") | |
| 1420 | ,(+ 1 (regexp-opt-depth ruby-here-doc-beg-re)) | |
| 1421 | (ruby-here-doc-beg-syntax)) | |
| 1422 | (,ruby-here-doc-end-re 3 (ruby-here-doc-end-syntax))) | |
| 94584c34 | 1423 | "Syntactic keywords for Ruby mode. See `font-lock-syntactic-keywords'.") |
| cf38dd42 SM |
1424 | |
| 1425 | (defun ruby-comment-beg-syntax () | |
| ee61fe97 | 1426 | "Return the syntax cell for a the first character of a =begin. |
| c7fbbc3c CY |
1427 | See the definition of `ruby-font-lock-syntactic-keywords'. |
| 1428 | ||
| 1429 | This returns a comment-delimiter cell as long as the =begin | |
| 1430 | isn't in a string or another comment." | |
| cf38dd42 SM |
1431 | (when (not (nth 3 (syntax-ppss))) |
| 1432 | (string-to-syntax "!"))) | |
| 1433 | ||
| 1434 | (defun ruby-in-here-doc-p () | |
| 1435 | "Return whether or not the point is in a heredoc." | |
| 1436 | (save-excursion | |
| 1437 | (let ((old-point (point)) (case-fold-search nil)) | |
| 1438 | (beginning-of-line) | |
| 1439 | (catch 'found-beg | |
| 9cd80478 DG |
1440 | (while (and (re-search-backward ruby-here-doc-beg-re nil t) |
| 1441 | (not (ruby-singleton-class-p))) | |
| cf38dd42 SM |
1442 | (if (not (or (ruby-in-ppss-context-p 'anything) |
| 1443 | (ruby-here-doc-find-end old-point))) | |
| 1444 | (throw 'found-beg t))))))) | |
| 1445 | ||
| 1446 | (defun ruby-here-doc-find-end (&optional limit) | |
| 1447 | "Expects the point to be on a line with one or more heredoc openers. | |
| 1448 | Returns the buffer position at which all heredocs on the line | |
| 1449 | are terminated, or nil if they aren't terminated before the | |
| 1450 | buffer position `limit' or the end of the buffer." | |
| 1451 | (save-excursion | |
| 1452 | (beginning-of-line) | |
| 1453 | (catch 'done | |
| e180ab9f | 1454 | (let ((eol (point-at-eol)) |
| cf38dd42 SM |
1455 | (case-fold-search nil) |
| 1456 | ;; Fake match data such that (match-end 0) is at eol | |
| 1457 | (end-match-data (progn (looking-at ".*$") (match-data))) | |
| 1458 | beg-match-data end-re) | |
| 1459 | (while (re-search-forward ruby-here-doc-beg-re eol t) | |
| 1460 | (setq beg-match-data (match-data)) | |
| 1461 | (setq end-re (ruby-here-doc-end-match)) | |
| 1462 | ||
| 1463 | (set-match-data end-match-data) | |
| 1464 | (goto-char (match-end 0)) | |
| 1465 | (unless (re-search-forward end-re limit t) (throw 'done nil)) | |
| 1466 | (setq end-match-data (match-data)) | |
| 1467 | ||
| 1468 | (set-match-data beg-match-data) | |
| 1469 | (goto-char (match-end 0))) | |
| 1470 | (set-match-data end-match-data) | |
| 1471 | (goto-char (match-end 0)) | |
| 1472 | (point))))) | |
| 1473 | ||
| 1474 | (defun ruby-here-doc-beg-syntax () | |
| 1475 | "Return the syntax cell for a line that may begin a heredoc. | |
| 1476 | See the definition of `ruby-font-lock-syntactic-keywords'. | |
| 1477 | ||
| 1478 | This sets the syntax cell for the newline ending the line | |
| 1479 | containing the heredoc beginning so that cases where multiple | |
| 1480 | heredocs are started on one line are handled correctly." | |
| 1481 | (save-excursion | |
| 1482 | (goto-char (match-beginning 0)) | |
| 1483 | (unless (or (ruby-in-ppss-context-p 'non-heredoc) | |
| 1484 | (ruby-in-here-doc-p)) | |
| 1485 | (string-to-syntax "\"")))) | |
| 1486 | ||
| 1487 | (defun ruby-here-doc-end-syntax () | |
| 1488 | "Return the syntax cell for a line that may end a heredoc. | |
| 1489 | See the definition of `ruby-font-lock-syntactic-keywords'." | |
| 1490 | (let ((pss (syntax-ppss)) (case-fold-search nil)) | |
| 1491 | ;; If we aren't in a string, we definitely aren't ending a heredoc, | |
| 1492 | ;; so we can just give up. | |
| 1493 | ;; This means we aren't doing a full-document search | |
| 1494 | ;; every time we enter a character. | |
| 1495 | (when (ruby-in-ppss-context-p 'heredoc pss) | |
| 1496 | (save-excursion | |
| 1497 | (goto-char (nth 8 pss)) ; Go to the beginning of heredoc. | |
| 1498 | (let ((eol (point))) | |
| 1499 | (beginning-of-line) | |
| 1500 | (if (and (re-search-forward (ruby-here-doc-beg-match) eol t) ; If there is a heredoc that matches this line... | |
| 1501 | (not (ruby-in-ppss-context-p 'anything)) ; And that's not inside a heredoc/string/comment... | |
| 1502 | (progn (goto-char (match-end 0)) ; And it's the last heredoc on its line... | |
| 1503 | (not (re-search-forward ruby-here-doc-beg-re eol t)))) | |
| 1504 | (string-to-syntax "\""))))))) | |
| c7fbbc3c | 1505 | |
| cf38dd42 SM |
1506 | (unless (functionp 'syntax-ppss) |
| 1507 | (defun syntax-ppss (&optional pos) | |
| 1508 | (parse-partial-sexp (point-min) (or pos (point))))) | |
| 1509 | ) | |
| c7fbbc3c CY |
1510 | |
| 1511 | (defun ruby-in-ppss-context-p (context &optional ppss) | |
| 1512 | (let ((ppss (or ppss (syntax-ppss (point))))) | |
| 1513 | (if (cond | |
| 1514 | ((eq context 'anything) | |
| 1515 | (or (nth 3 ppss) | |
| 1516 | (nth 4 ppss))) | |
| 1517 | ((eq context 'string) | |
| 1518 | (nth 3 ppss)) | |
| 1519 | ((eq context 'heredoc) | |
| cf38dd42 | 1520 | (eq ?\n (nth 3 ppss))) |
| c7fbbc3c CY |
1521 | ((eq context 'non-heredoc) |
| 1522 | (and (ruby-in-ppss-context-p 'anything) | |
| 1523 | (not (ruby-in-ppss-context-p 'heredoc)))) | |
| 1524 | ((eq context 'comment) | |
| 1525 | (nth 4 ppss)) | |
| 1526 | (t | |
| 1527 | (error (concat | |
| 1528 | "Internal error on `ruby-in-ppss-context-p': " | |
| 1529 | "context name `" (symbol-name context) "' is unknown")))) | |
| 1530 | t))) | |
| 1531 | ||
| c7fbbc3c CY |
1532 | (if (featurep 'xemacs) |
| 1533 | (put 'ruby-mode 'font-lock-defaults | |
| 1534 | '((ruby-font-lock-keywords) | |
| 1535 | nil nil nil | |
| 1536 | beginning-of-line | |
| 1537 | (font-lock-syntactic-keywords | |
| 1538 | . ruby-font-lock-syntactic-keywords)))) | |
| 1539 | ||
| 1540 | (defvar ruby-font-lock-syntax-table | |
| 1541 | (let ((tbl (copy-syntax-table ruby-mode-syntax-table))) | |
| 1542 | (modify-syntax-entry ?_ "w" tbl) | |
| 1543 | tbl) | |
| ee61fe97 | 1544 | "The syntax table to use for fontifying Ruby mode buffers. |
| c7fbbc3c CY |
1545 | See `font-lock-syntax-table'.") |
| 1546 | ||
| 1547 | (defconst ruby-font-lock-keywords | |
| 1548 | (list | |
| 1549 | ;; functions | |
| 1550 | '("^\\s *def\\s +\\([^( \t\n]+\\)" | |
| 1551 | 1 font-lock-function-name-face) | |
| 1552 | ;; keywords | |
| 1553 | (cons (concat | |
| 1554 | "\\(^\\|[^_:.@$]\\|\\.\\.\\)\\b\\(defined\\?\\|" | |
| 1555 | (regexp-opt | |
| 1556 | '("alias_method" | |
| 1557 | "alias" | |
| 1558 | "and" | |
| 1559 | "begin" | |
| 1560 | "break" | |
| 1561 | "case" | |
| 1562 | "catch" | |
| 1563 | "class" | |
| 1564 | "def" | |
| 1565 | "do" | |
| 1566 | "elsif" | |
| 1567 | "else" | |
| 1568 | "fail" | |
| 1569 | "ensure" | |
| 1570 | "for" | |
| 1571 | "end" | |
| 1572 | "if" | |
| 1573 | "in" | |
| 1574 | "module_function" | |
| 1575 | "module" | |
| 1576 | "next" | |
| 1577 | "not" | |
| 1578 | "or" | |
| 1579 | "public" | |
| 1580 | "private" | |
| 1581 | "protected" | |
| 1582 | "raise" | |
| 1583 | "redo" | |
| 1584 | "rescue" | |
| 1585 | "retry" | |
| 1586 | "return" | |
| 1587 | "then" | |
| 1588 | "throw" | |
| 1589 | "super" | |
| 1590 | "unless" | |
| 1591 | "undef" | |
| 1592 | "until" | |
| 1593 | "when" | |
| 1594 | "while" | |
| 1595 | "yield") | |
| 1596 | t) | |
| 1597 | "\\)" | |
| 1598 | ruby-keyword-end-re) | |
| 1599 | 2) | |
| 1600 | ;; here-doc beginnings | |
| f178c32d DG |
1601 | `(,ruby-here-doc-beg-re 0 (unless (ruby-singleton-class-p (match-beginning 0)) |
| 1602 | 'font-lock-string-face)) | |
| c7fbbc3c CY |
1603 | ;; variables |
| 1604 | '("\\(^\\|[^_:.@$]\\|\\.\\.\\)\\b\\(nil\\|self\\|true\\|false\\)\\>" | |
| 1605 | 2 font-lock-variable-name-face) | |
| 0ba2d4b6 DG |
1606 | ;; symbols |
| 1607 | '("\\(^\\|[^:]\\)\\(:\\([-+~]@?\\|[/%&|^`]\\|\\*\\*?\\|<\\(<\\|=>?\\)?\\|>[>=]?\\|===?\\|=~\\|![~=]?\\|\\[\\]=?\\|@?\\(\\w\\|_\\)+\\([!?=]\\|\\b_*\\)\\|#{[^}\n\\\\]*\\(\\\\.[^}\n\\\\]*\\)*}\\)\\)" | |
| 6c27f0f8 | 1608 | 2 font-lock-constant-face) |
| c7fbbc3c CY |
1609 | ;; variables |
| 1610 | '("\\(\\$\\([^a-zA-Z0-9 \n]\\|[0-9]\\)\\)\\W" | |
| 1611 | 1 font-lock-variable-name-face) | |
| 1612 | '("\\(\\$\\|@\\|@@\\)\\(\\w\\|_\\)+" | |
| 1613 | 0 font-lock-variable-name-face) | |
| c7fbbc3c CY |
1614 | ;; constants |
| 1615 | '("\\(^\\|[^_]\\)\\b\\([A-Z]+\\(\\w\\|_\\)*\\)" | |
| 1616 | 2 font-lock-type-face) | |
| 6c27f0f8 | 1617 | '("\\(^\\s *\\|[\[\{\(,]\\s *\\|\\sw\\s +\\)\\(\\(\\sw\\|_\\)+\\):[^:]" 2 font-lock-constant-face) |
| c7fbbc3c | 1618 | ;; expression expansion |
| 0ba2d4b6 | 1619 | '(ruby-match-expression-expansion |
| c62792e7 | 1620 | 2 font-lock-variable-name-face t) |
| c7fbbc3c CY |
1621 | ;; warn lower camel case |
| 1622 | ;'("\\<[a-z]+[a-z0-9]*[A-Z][A-Za-z0-9]*\\([!?]?\\|\\>\\)" | |
| 1623 | ; 0 font-lock-warning-face) | |
| 1624 | ) | |
| ee61fe97 | 1625 | "Additional expressions to highlight in Ruby mode.") |
| c7fbbc3c | 1626 | |
| 0ba2d4b6 | 1627 | (defun ruby-match-expression-expansion (limit) |
| dbb530d9 DG |
1628 | (let* ((prop 'ruby-expansion-match-data) |
| 1629 | (pos (next-single-char-property-change (point) prop nil limit)) | |
| 1630 | value) | |
| 1631 | (when (and pos (> pos (point))) | |
| c62792e7 DG |
1632 | (goto-char pos) |
| 1633 | (or (and (setq value (get-text-property pos prop)) | |
| 1634 | (progn (set-match-data value) t)) | |
| 1635 | (ruby-match-expression-expansion limit))))) | |
| 0ba2d4b6 | 1636 | |
| c7fbbc3c | 1637 | ;;;###autoload |
| cf38dd42 | 1638 | (define-derived-mode ruby-mode prog-mode "Ruby" |
| c7fbbc3c CY |
1639 | "Major mode for editing Ruby scripts. |
| 1640 | \\[ruby-indent-line] properly indents subexpressions of multi-line | |
| 1641 | class, module, def, if, while, for, do, and case statements, taking | |
| 1642 | nesting into account. | |
| 1643 | ||
| ee61fe97 JB |
1644 | The variable `ruby-indent-level' controls the amount of indentation. |
| 1645 | ||
| c7fbbc3c | 1646 | \\{ruby-mode-map}" |
| c7fbbc3c CY |
1647 | (ruby-mode-variables) |
| 1648 | ||
| 1649 | (set (make-local-variable 'imenu-create-index-function) | |
| 1650 | 'ruby-imenu-create-index) | |
| 1651 | (set (make-local-variable 'add-log-current-defun-function) | |
| 1652 | 'ruby-add-log-current-method) | |
| 4489104f DG |
1653 | (set (make-local-variable 'beginning-of-defun-function) |
| 1654 | 'ruby-beginning-of-defun) | |
| 1655 | (set (make-local-variable 'end-of-defun-function) | |
| 1656 | 'ruby-end-of-defun) | |
| c7fbbc3c CY |
1657 | |
| 1658 | (add-hook | |
| cf38dd42 | 1659 | (cond ((boundp 'before-save-hook) 'before-save-hook) |
| c7fbbc3c CY |
1660 | ((boundp 'write-contents-functions) 'write-contents-functions) |
| 1661 | ((boundp 'write-contents-hooks) 'write-contents-hooks)) | |
| cf38dd42 SM |
1662 | 'ruby-mode-set-encoding nil 'local) |
| 1663 | ||
| 1664 | (set (make-local-variable 'electric-indent-chars) | |
| 2122161f | 1665 | (append '(?\{ ?\}) electric-indent-chars)) |
| c7fbbc3c CY |
1666 | |
| 1667 | (set (make-local-variable 'font-lock-defaults) | |
| 1668 | '((ruby-font-lock-keywords) nil nil)) | |
| 1669 | (set (make-local-variable 'font-lock-keywords) | |
| 1670 | ruby-font-lock-keywords) | |
| 1671 | (set (make-local-variable 'font-lock-syntax-table) | |
| 1672 | ruby-font-lock-syntax-table) | |
| c7fbbc3c | 1673 | |
| cf38dd42 SM |
1674 | (if (eval-when-compile (fboundp 'syntax-propertize-rules)) |
| 1675 | (set (make-local-variable 'syntax-propertize-function) | |
| 1676 | #'ruby-syntax-propertize-function) | |
| 1677 | (set (make-local-variable 'font-lock-syntactic-keywords) | |
| 1678 | ruby-font-lock-syntactic-keywords))) | |
| c7fbbc3c CY |
1679 | |
| 1680 | ;;; Invoke ruby-mode when appropriate | |
| 1681 | ||
| 1682 | ;;;###autoload | |
| a7610c52 | 1683 | (add-to-list 'auto-mode-alist (cons (purecopy "\\.rb\\'") 'ruby-mode)) |
| cabc040a | 1684 | ;;;###autoload |
| 78269b95 DG |
1685 | (add-to-list 'auto-mode-alist (cons (purecopy "Rakefile\\'") 'ruby-mode)) |
| 1686 | ;;;###autoload | |
| 1687 | (add-to-list 'auto-mode-alist (cons (purecopy "\\.gemspec\\'") 'ruby-mode)) | |
| c7fbbc3c CY |
1688 | |
| 1689 | ;;;###autoload | |
| 4d270537 | 1690 | (dolist (name (list "ruby" "rbx" "jruby" "ruby1.9" "ruby1.8")) |
| a7610c52 | 1691 | (add-to-list 'interpreter-mode-alist (cons (purecopy name) 'ruby-mode))) |
| c7fbbc3c CY |
1692 | |
| 1693 | (provide 'ruby-mode) | |
| 1694 | ||
| 1695 | ;;; ruby-mode.el ends here |