| 1 | ;;; simula.el --- SIMULA 87 code editing commands for Emacs |
| 2 | |
| 3 | ;; Copyright (C) 1992, 1994, 1996, 2001, 2002, 2003, 2004, 2005, 2006, |
| 4 | ;; 2007, 2008, 2009 Free Software Foundation, Inc. |
| 5 | |
| 6 | ;; Author: Hans Henrik Eriksen <hhe@ifi.uio.no> |
| 7 | ;; Maintainer: simula-mode@ifi.uio.no |
| 8 | ;; (above email addresses invalid as of April 2008) |
| 9 | ;; Adapted-By: ESR |
| 10 | ;; Keywords: languages |
| 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 | ;; A major mode for editing the Simula language. It knows about Simula |
| 30 | ;; syntax and standard indentation commands. It also provides convenient |
| 31 | ;; abbrevs for Simula keywords. |
| 32 | ;; |
| 33 | ;; Hans Henrik Eriksen (the author) may be reached at: |
| 34 | ;; Institutt for informatikk, |
| 35 | ;; Universitetet i Oslo |
| 36 | |
| 37 | ;;; Code: |
| 38 | |
| 39 | \f |
| 40 | (defgroup simula nil |
| 41 | "Major mode for editing Simula code." |
| 42 | :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces) |
| 43 | :prefix "simula-" |
| 44 | :group 'languages) |
| 45 | |
| 46 | (defconst simula-tab-always-indent-default nil |
| 47 | "Non-nil means TAB in SIMULA mode should always reindent the current line. |
| 48 | Otherwise TAB indents only when point is within |
| 49 | the run of whitespace at the beginning of the line.") |
| 50 | |
| 51 | (defcustom simula-tab-always-indent simula-tab-always-indent-default |
| 52 | "*Non-nil means TAB in SIMULA mode should always reindent the current line. |
| 53 | Otherwise TAB indents only when point is within |
| 54 | the run of whitespace at the beginning of the line." |
| 55 | :type 'boolean |
| 56 | :group 'simula) |
| 57 | |
| 58 | (defconst simula-indent-level-default 3 |
| 59 | "Indentation of SIMULA statements with respect to containing block.") |
| 60 | |
| 61 | (defcustom simula-indent-level simula-indent-level-default |
| 62 | "*Indentation of SIMULA statements with respect to containing block." |
| 63 | :type 'integer |
| 64 | :group 'simula) |
| 65 | |
| 66 | |
| 67 | (defconst simula-substatement-offset-default 3 |
| 68 | "Extra indentation after DO, THEN, ELSE, WHEN and OTHERWISE.") |
| 69 | |
| 70 | (defcustom simula-substatement-offset simula-substatement-offset-default |
| 71 | "*Extra indentation after DO, THEN, ELSE, WHEN and OTHERWISE." |
| 72 | :type 'integer |
| 73 | :group 'simula) |
| 74 | |
| 75 | (defconst simula-continued-statement-offset-default 3 |
| 76 | "Extra indentation for lines not starting a statement or substatement. |
| 77 | If value is a list, each line in a multipleline continued statement |
| 78 | will have the car of the list extra indentation with respect to |
| 79 | the previous line of the statement.") |
| 80 | |
| 81 | (defcustom simula-continued-statement-offset |
| 82 | simula-continued-statement-offset-default |
| 83 | "*Extra indentation for lines not starting a statement or substatement. |
| 84 | If value is a list, each line in a multipleline continued statement |
| 85 | will have the car of the list extra indentation with respect to |
| 86 | the previous line of the statement." |
| 87 | :type 'integer |
| 88 | :group 'simula) |
| 89 | |
| 90 | (defconst simula-label-offset-default -4711 |
| 91 | "Offset of SIMULA label lines relative to usual indentation.") |
| 92 | |
| 93 | (defcustom simula-label-offset simula-label-offset-default |
| 94 | "*Offset of SIMULA label lines relative to usual indentation." |
| 95 | :type 'integer |
| 96 | :group 'simula) |
| 97 | |
| 98 | (defconst simula-if-indent-default '(0 . 0) |
| 99 | "Extra indentation of THEN and ELSE with respect to the starting IF. |
| 100 | Value is a cons cell, the car is extra THEN indentation and the cdr |
| 101 | extra ELSE indentation. IF after ELSE is indented as the starting IF.") |
| 102 | |
| 103 | (defcustom simula-if-indent simula-if-indent-default |
| 104 | "*Extra indentation of THEN and ELSE with respect to the starting IF. |
| 105 | Value is a cons cell, the car is extra THEN indentation and the cdr |
| 106 | extra ELSE indentation. IF after ELSE is indented as the starting IF." |
| 107 | :type '(cons integer integer) |
| 108 | :group 'simula) |
| 109 | |
| 110 | (defconst simula-inspect-indent-default '(0 . 0) |
| 111 | "Extra indentation of WHEN and OTHERWISE with respect to the INSPECT. |
| 112 | Value is a cons cell, the car is extra WHEN indentation |
| 113 | and the cdr extra OTHERWISE indentation.") |
| 114 | |
| 115 | (defcustom simula-inspect-indent simula-inspect-indent-default |
| 116 | "*Extra indentation of WHEN and OTHERWISE with respect to the INSPECT. |
| 117 | Value is a cons cell, the car is extra WHEN indentation |
| 118 | and the cdr extra OTHERWISE indentation." |
| 119 | :type '(cons integer integer) |
| 120 | :group 'simula) |
| 121 | |
| 122 | (defconst simula-electric-indent-default nil |
| 123 | "Non-nil means `simula-indent-line' function may reindent previous line.") |
| 124 | |
| 125 | (defcustom simula-electric-indent simula-electric-indent-default |
| 126 | "*Non-nil means `simula-indent-line' function may reindent previous line." |
| 127 | :type 'boolean |
| 128 | :group 'simula) |
| 129 | |
| 130 | (defconst simula-abbrev-keyword-default 'upcase |
| 131 | "Specify how to convert case for SIMULA keywords. |
| 132 | Value is one of the symbols `upcase', `downcase', `capitalize', |
| 133 | \(as in) `abbrev-table' or nil if they should not be changed.") |
| 134 | |
| 135 | (defcustom simula-abbrev-keyword simula-abbrev-keyword-default |
| 136 | "*Specify how to convert case for SIMULA keywords. |
| 137 | Value is one of the symbols `upcase', `downcase', `capitalize', |
| 138 | \(as in) `abbrev-table' or nil if they should not be changed." |
| 139 | :type '(choice (const upcase) (const downcase) (const capitalize)(const nil)) |
| 140 | :group 'simula) |
| 141 | |
| 142 | (defconst simula-abbrev-stdproc-default 'abbrev-table |
| 143 | "Specify how to convert case for standard SIMULA procedure and class names. |
| 144 | Value is one of the symbols `upcase', `downcase', `capitalize', |
| 145 | \(as in) `abbrev-table', or nil if they should not be changed.") |
| 146 | |
| 147 | (defcustom simula-abbrev-stdproc simula-abbrev-stdproc-default |
| 148 | "*Specify how to convert case for standard SIMULA procedure and class names. |
| 149 | Value is one of the symbols `upcase', `downcase', `capitalize', |
| 150 | \(as in) `abbrev-table', or nil if they should not be changed." |
| 151 | :type '(choice (const upcase) (const downcase) (const capitalize) |
| 152 | (const abbrev-table) (const nil)) |
| 153 | :group 'simula) |
| 154 | |
| 155 | (defcustom simula-abbrev-file nil |
| 156 | "*File with extra abbrev definitions for use in SIMULA mode. |
| 157 | These are used together with the standard abbrev definitions for SIMULA. |
| 158 | Please note that the standard definitions are required |
| 159 | for SIMULA mode to function correctly." |
| 160 | :type '(choice file (const nil)) |
| 161 | :group 'simula) |
| 162 | |
| 163 | (defvar simula-mode-syntax-table nil |
| 164 | "Syntax table in SIMULA mode buffers.") |
| 165 | |
| 166 | (defconst simula-font-lock-syntactic-keywords |
| 167 | `(;; `comment' directive. |
| 168 | ("\\<\\(c\\)omment\\>" 1 "<") |
| 169 | ;; end comments |
| 170 | (,(concat "\\<end\\>\\([^;\n]\\).*?\\(\n\\|\\(.\\)\\(;\\|" |
| 171 | (regexp-opt '("end" "else" "when" "otherwise")) |
| 172 | "\\)\\)") |
| 173 | (1 "< b") |
| 174 | (3 "> b" nil t)) |
| 175 | ;; non-quoted single-quote char. |
| 176 | ("'\\('\\)'" 1 "."))) |
| 177 | |
| 178 | ;; Regexps written with help from Alf-Ivar Holm <alfh@ifi.uio.no>. |
| 179 | (defconst simula-font-lock-keywords-1 |
| 180 | '(;; |
| 181 | ;; Compiler directives. |
| 182 | ("^%\\([^ \t\n].*\\)" 1 font-lock-constant-face t) |
| 183 | ;; |
| 184 | ;; Class and procedure names. |
| 185 | ("\\<\\(class\\|procedure\\)\\>[ \t]*\\(\\sw+\\)?" |
| 186 | (1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))) |
| 187 | "Subdued level highlighting for Simula mode.") |
| 188 | |
| 189 | (defconst simula-font-lock-keywords-2 |
| 190 | (append simula-font-lock-keywords-1 |
| 191 | (list |
| 192 | ;; |
| 193 | ;; Constants. |
| 194 | '("\\<\\(false\\|none\\|notext\\|true\\)\\>" . font-lock-constant-face) |
| 195 | ;; |
| 196 | ;; Keywords. |
| 197 | (regexp-opt |
| 198 | '("activate" "after" "and" "at" "before" "begin" "delay" "do" |
| 199 | "else" "end" "eq" "eqv" "external" "for" "ge" "go" "goto" "gt" |
| 200 | "hidden" "if" "imp" "in" "inner" "inspect" "is" "label" "le" |
| 201 | "lt" "ne" "new" "not" "or" "otherwise" "prior" "protected" |
| 202 | "qua" "reactivate" "step" "switch" "then" "this" "to" "until" |
| 203 | "virtual" "when" "while") 'words) |
| 204 | ;; |
| 205 | ;; Types. |
| 206 | (cons (regexp-opt |
| 207 | '("array" "boolean" "character" "integer" |
| 208 | "long" "name" "real" "short" "text" "value" "ref") 'words) |
| 209 | 'font-lock-type-face))) |
| 210 | "Medium level highlighting for Simula mode.") |
| 211 | |
| 212 | (defconst simula-font-lock-keywords-3 |
| 213 | (append simula-font-lock-keywords-2 |
| 214 | (list |
| 215 | ;; |
| 216 | ;; Super-class names and super-slow. |
| 217 | '("\\<\\(\\sw+\\)[ \t]+class\\>" 1 font-lock-function-name-face) |
| 218 | ;; |
| 219 | ;; Types and their declarations. |
| 220 | (list (concat "\\<\\(array\\|boolean\\|character\\|integer\\|" |
| 221 | "long\\|name\\|real\\|short\\|text\\|value\\)\\>" |
| 222 | "\\([ \t]+\\sw+\\>\\)*") |
| 223 | '(font-lock-match-c-style-declaration-item-and-skip-to-next |
| 224 | ;; Start with point after all type specifiers. |
| 225 | (goto-char (or (match-beginning 2) (match-end 1))) |
| 226 | ;; Finish with point after first type specifier. |
| 227 | (goto-char (match-end 1)) |
| 228 | ;; Fontify as a variable name. |
| 229 | (1 font-lock-variable-name-face))) |
| 230 | ;; |
| 231 | ;; Object references and their declarations. |
| 232 | '("\\<\\(ref\\)\\>[ \t]*\\((\\(\\sw+\\))\\)?" |
| 233 | (3 font-lock-function-name-face nil t) |
| 234 | (font-lock-match-c-style-declaration-item-and-skip-to-next nil nil |
| 235 | (1 font-lock-variable-name-face))) |
| 236 | )) |
| 237 | "Gaudy level highlighting for Simula mode.") |
| 238 | |
| 239 | (defvar simula-font-lock-keywords simula-font-lock-keywords-1 |
| 240 | "Default expressions to highlight in Simula mode.") |
| 241 | |
| 242 | ; The following function is taken from cc-mode.el, |
| 243 | ; it determines the flavor of the Emacs running |
| 244 | |
| 245 | (defvar simula-mode-menu |
| 246 | '(["Report Bug" simula-submit-bug-report t] |
| 247 | ["Indent Line" simula-indent-line t] |
| 248 | ["Backward Statement" simula-previous-statement t] |
| 249 | ["Forward Statement" simula-next-statement t] |
| 250 | ["Backward Up Level" simula-backward-up-level t] |
| 251 | ["Forward Down Statement" simula-forward-down-level t]) |
| 252 | "Lucid Emacs menu for SIMULA mode.") |
| 253 | |
| 254 | (if simula-mode-syntax-table |
| 255 | () |
| 256 | (setq simula-mode-syntax-table (copy-syntax-table (standard-syntax-table))) |
| 257 | (modify-syntax-entry ?! "<" simula-mode-syntax-table) |
| 258 | (modify-syntax-entry ?$ "." simula-mode-syntax-table) |
| 259 | (modify-syntax-entry ?% "< b" simula-mode-syntax-table) |
| 260 | (modify-syntax-entry ?\n "> b" simula-mode-syntax-table) |
| 261 | (modify-syntax-entry ?' "\"" simula-mode-syntax-table) |
| 262 | (modify-syntax-entry ?\( "()" simula-mode-syntax-table) |
| 263 | (modify-syntax-entry ?\) ")(" simula-mode-syntax-table) |
| 264 | (modify-syntax-entry ?\; ">" simula-mode-syntax-table) |
| 265 | (modify-syntax-entry ?\[ "." simula-mode-syntax-table) |
| 266 | (modify-syntax-entry ?\\ "." simula-mode-syntax-table) |
| 267 | (modify-syntax-entry ?\] "." simula-mode-syntax-table) |
| 268 | (modify-syntax-entry ?_ "_" simula-mode-syntax-table) |
| 269 | (modify-syntax-entry ?\| "." simula-mode-syntax-table) |
| 270 | (modify-syntax-entry ?\{ "." simula-mode-syntax-table) |
| 271 | (modify-syntax-entry ?\} "." simula-mode-syntax-table)) |
| 272 | |
| 273 | (defvar simula-mode-map |
| 274 | (let ((map (make-sparse-keymap))) |
| 275 | (define-key map "\C-c\C-u" 'simula-backward-up-level) |
| 276 | (define-key map "\C-c\C-p" 'simula-previous-statement) |
| 277 | (define-key map "\C-c\C-d" 'simula-forward-down-level) |
| 278 | (define-key map "\C-c\C-n" 'simula-next-statement) |
| 279 | ;; (define-key map "\C-c\C-g" 'simula-goto-definition) |
| 280 | ;; (define-key map "\C-c\C-h" 'simula-standard-help) |
| 281 | (define-key map "\177" 'backward-delete-char-untabify) |
| 282 | (define-key map ":" 'simula-electric-label) |
| 283 | (define-key map "\e\C-q" 'simula-indent-exp) |
| 284 | (define-key map "\t" 'simula-indent-command) |
| 285 | ;; Emacs 19 defines menus in the mode map |
| 286 | (define-key map [menu-bar simula] |
| 287 | (cons "SIMULA" (make-sparse-keymap "SIMULA"))) |
| 288 | (define-key map [menu-bar simula bug-report] |
| 289 | '("Submit Bug Report" . simula-submit-bug-report)) |
| 290 | (define-key map [menu-bar simula separator-indent] |
| 291 | '("--")) |
| 292 | (define-key map [menu-bar simula indent-exp] |
| 293 | '("Indent Expression" . simula-indent-exp)) |
| 294 | (define-key map [menu-bar simula indent-line] |
| 295 | '("Indent Line" . simula-indent-command)) |
| 296 | (define-key map [menu-bar simula separator-navigate] |
| 297 | '("--")) |
| 298 | (define-key map [menu-bar simula backward-stmt] |
| 299 | '("Previous Statement" . simula-previous-statement)) |
| 300 | (define-key map [menu-bar simula forward-stmt] |
| 301 | '("Next Statement" . simula-next-statement)) |
| 302 | (define-key map [menu-bar simula backward-up] |
| 303 | '("Backward Up Level" . simula-backward-up-level)) |
| 304 | (define-key map [menu-bar simula forward-down] |
| 305 | '("Forward Down Statement" . simula-forward-down-level)) |
| 306 | |
| 307 | (put 'simula-next-statement 'menu-enable '(not (eobp))) |
| 308 | (put 'simula-previous-statement 'menu-enable '(not (bobp))) |
| 309 | (put 'simula-forward-down-level 'menu-enable '(not (eobp))) |
| 310 | (put 'simula-backward-up-level 'menu-enable '(not (bobp))) |
| 311 | (put 'simula-indent-command 'menu-enable '(not buffer-read-only)) |
| 312 | (put 'simula-indent-exp 'menu-enable '(not buffer-read-only)) |
| 313 | |
| 314 | ;; RMS: mouse-3 should not select this menu. mouse-3's global |
| 315 | ;; definition is useful in SIMULA mode and we should not interfere |
| 316 | ;; with that. The menu is mainly for beginners, and for them, |
| 317 | ;; the menubar requires less memory than a special click. |
| 318 | ;; in Lucid Emacs, we want the menu to popup when the 3rd button is |
| 319 | ;; hit. In 19.10 and beyond this is done automatically if we put |
| 320 | ;; the menu on mode-popup-menu variable, see c-common-init [cc-mode.el] |
| 321 | ;;(if (not (boundp 'mode-popup-menu)) |
| 322 | ;; (define-key simula-mode-map 'button3 'simula-popup-menu)) |
| 323 | map) |
| 324 | "Keymap used in `simula-mode'.") |
| 325 | |
| 326 | ;; menus for Lucid |
| 327 | (defun simula-popup-menu (e) |
| 328 | "Pops up the SIMULA menu." |
| 329 | (interactive "@e") |
| 330 | (popup-menu (cons (concat mode-name " Mode Commands") simula-mode-menu))) |
| 331 | |
| 332 | ;;;###autoload |
| 333 | (define-derived-mode simula-mode nil "Simula" |
| 334 | "Major mode for editing SIMULA code. |
| 335 | \\{simula-mode-map} |
| 336 | Variables controlling indentation style: |
| 337 | `simula-tab-always-indent' |
| 338 | Non-nil means TAB in SIMULA mode should always reindent the current line, |
| 339 | regardless of where in the line point is when the TAB command is used. |
| 340 | `simula-indent-level' |
| 341 | Indentation of SIMULA statements with respect to containing block. |
| 342 | `simula-substatement-offset' |
| 343 | Extra indentation after DO, THEN, ELSE, WHEN and OTHERWISE. |
| 344 | `simula-continued-statement-offset' 3 |
| 345 | Extra indentation for lines not starting a statement or substatement, |
| 346 | e.g. a nested FOR-loop. If value is a list, each line in a multiple- |
| 347 | line continued statement will have the car of the list extra indentation |
| 348 | with respect to the previous line of the statement. |
| 349 | `simula-label-offset' -4711 |
| 350 | Offset of SIMULA label lines relative to usual indentation. |
| 351 | `simula-if-indent' '(0 . 0) |
| 352 | Extra indentation of THEN and ELSE with respect to the starting IF. |
| 353 | Value is a cons cell, the car is extra THEN indentation and the cdr |
| 354 | extra ELSE indentation. IF after ELSE is indented as the starting IF. |
| 355 | `simula-inspect-indent' '(0 . 0) |
| 356 | Extra indentation of WHEN and OTHERWISE with respect to the |
| 357 | corresponding INSPECT. Value is a cons cell, the car is |
| 358 | extra WHEN indentation and the cdr extra OTHERWISE indentation. |
| 359 | `simula-electric-indent' nil |
| 360 | If this variable is non-nil, `simula-indent-line' |
| 361 | will check the previous line to see if it has to be reindented. |
| 362 | `simula-abbrev-keyword' 'upcase |
| 363 | Determine how SIMULA keywords will be expanded. Value is one of |
| 364 | the symbols `upcase', `downcase', `capitalize', (as in) `abbrev-table', |
| 365 | or nil if they should not be changed. |
| 366 | `simula-abbrev-stdproc' 'abbrev-table |
| 367 | Determine how standard SIMULA procedure and class names will be |
| 368 | expanded. Value is one of the symbols `upcase', `downcase', `capitalize', |
| 369 | (as in) `abbrev-table', or nil if they should not be changed. |
| 370 | |
| 371 | Turning on SIMULA mode calls the value of the variable simula-mode-hook |
| 372 | with no arguments, if that value is non-nil." |
| 373 | (make-local-variable 'comment-column) |
| 374 | (setq comment-column 40) |
| 375 | ; (make-local-variable 'end-comment-column) |
| 376 | ; (setq end-comment-column 75) |
| 377 | (make-local-variable 'paragraph-start) |
| 378 | (setq paragraph-start "[ \t]*$\\|\\f") |
| 379 | (make-local-variable 'paragraph-separate) |
| 380 | (setq paragraph-separate paragraph-start) |
| 381 | (make-local-variable 'indent-line-function) |
| 382 | (setq indent-line-function 'simula-indent-line) |
| 383 | (make-local-variable 'require-final-newline) |
| 384 | (setq require-final-newline mode-require-final-newline) |
| 385 | (make-local-variable 'comment-start) |
| 386 | (setq comment-start "! ") |
| 387 | (make-local-variable 'comment-end) |
| 388 | (setq comment-end " ;") |
| 389 | (make-local-variable 'comment-start-skip) |
| 390 | (setq comment-start-skip "!+ *") |
| 391 | (make-local-variable 'parse-sexp-ignore-comments) |
| 392 | (setq parse-sexp-ignore-comments nil) |
| 393 | (make-local-variable 'comment-multi-line) |
| 394 | (setq comment-multi-line t) |
| 395 | (make-local-variable 'font-lock-defaults) |
| 396 | (setq font-lock-defaults |
| 397 | '((simula-font-lock-keywords simula-font-lock-keywords-1 |
| 398 | simula-font-lock-keywords-2 simula-font-lock-keywords-3) |
| 399 | nil t ((?_ . "w")) nil |
| 400 | (font-lock-syntactic-keywords . simula-font-lock-syntactic-keywords))) |
| 401 | (abbrev-mode 1)) |
| 402 | |
| 403 | (defun simula-indent-exp () |
| 404 | "Indent SIMULA expression following point." |
| 405 | (interactive) |
| 406 | (let ((here (point)) |
| 407 | (simula-electric-indent nil) |
| 408 | end) |
| 409 | (simula-skip-comment-forward) |
| 410 | (if (eobp) |
| 411 | (goto-char here) |
| 412 | (unwind-protect |
| 413 | (progn |
| 414 | (simula-next-statement 1) |
| 415 | (setq end (point-marker)) |
| 416 | (simula-previous-statement 1) |
| 417 | (beginning-of-line) |
| 418 | (while (< (point) end) |
| 419 | (if (not (looking-at "[ \t]*$")) |
| 420 | (simula-indent-line)) |
| 421 | (forward-line 1))) |
| 422 | (and end (set-marker end nil)))))) |
| 423 | |
| 424 | |
| 425 | (defun simula-indent-line () |
| 426 | "Indent this line as SIMULA code. |
| 427 | If `simula-electric-indent' is non-nil, indent previous line if necessary." |
| 428 | (let ((origin (- (point-max) (point))) |
| 429 | (indent (simula-calculate-indent)) |
| 430 | (case-fold-search t)) |
| 431 | (unwind-protect |
| 432 | (if simula-electric-indent |
| 433 | (progn |
| 434 | ;; |
| 435 | ;; manually expand abbrev on last line, if any |
| 436 | ;; |
| 437 | (end-of-line 0) |
| 438 | (expand-abbrev) |
| 439 | ;; now maybe we should reindent that line |
| 440 | (beginning-of-line) |
| 441 | (skip-chars-forward " \t\f") |
| 442 | (if (and |
| 443 | (looking-at |
| 444 | "\\(end\\|if\\|then\\|else\\|when\\|otherwise\\)\\>") |
| 445 | (not (simula-context))) |
| 446 | ;; yes - reindent |
| 447 | (let ((post-indent (simula-calculate-indent))) |
| 448 | (if (eq (current-indentation) post-indent) |
| 449 | () |
| 450 | (delete-horizontal-space) |
| 451 | (indent-to post-indent)))))) |
| 452 | (goto-char (- (point-max) origin)) |
| 453 | (if (eq (current-indentation) indent) |
| 454 | (back-to-indentation) |
| 455 | (delete-horizontal-space) |
| 456 | (indent-to indent))))) |
| 457 | |
| 458 | |
| 459 | (defun simula-indent-command (&optional whole-exp) |
| 460 | "Indent current line as SIMULA code, or insert TAB character. |
| 461 | If `simula-tab-always-indent' is non-nil, always indent current line. |
| 462 | Otherwise, indent only if point is before any non-whitespace |
| 463 | character on the line. |
| 464 | |
| 465 | A numeric argument, regardless of its value, means indent rigidly |
| 466 | all the lines of the SIMULA statement after point so that this line |
| 467 | becomes properly indented. |
| 468 | The relative indentation among the lines of the statement are preserved." |
| 469 | (interactive "P") |
| 470 | (let ((case-fold-search t)) |
| 471 | (if (or whole-exp simula-tab-always-indent |
| 472 | (save-excursion |
| 473 | (skip-chars-backward " \t\f") |
| 474 | (bolp))) |
| 475 | ;; reindent current line |
| 476 | (let ((indent (save-excursion |
| 477 | (beginning-of-line) |
| 478 | (simula-calculate-indent))) |
| 479 | (current (current-indentation)) |
| 480 | (origin (- (point-max) (point))) |
| 481 | (bol (save-excursion |
| 482 | (skip-chars-backward " \t\f") |
| 483 | (bolp))) |
| 484 | beg end) |
| 485 | (unwind-protect |
| 486 | (if (eq current indent) |
| 487 | (if (save-excursion |
| 488 | (skip-chars-backward " \t\f") |
| 489 | (bolp)) |
| 490 | (back-to-indentation)) |
| 491 | (beginning-of-line) |
| 492 | (delete-horizontal-space) |
| 493 | (indent-to indent)) |
| 494 | (if (not bol) |
| 495 | (goto-char (- (point-max) origin)))) |
| 496 | (setq origin (point)) |
| 497 | (if whole-exp |
| 498 | (save-excursion |
| 499 | (beginning-of-line 2) |
| 500 | (setq beg (point)) |
| 501 | (goto-char origin) |
| 502 | (simula-next-statement 1) |
| 503 | (setq end (point)) |
| 504 | (if (and (> end beg) (not (eq indent current))) |
| 505 | (indent-code-rigidly beg end (- indent current) "%"))))) |
| 506 | (insert-tab)))) |
| 507 | |
| 508 | |
| 509 | (defun simula-context () |
| 510 | "Return value according to syntactic SIMULA context of point. |
| 511 | 0 point inside COMMENT comment |
| 512 | 1 point on SIMULA-compiler directive line |
| 513 | 2 point inside END comment |
| 514 | 3 point inside string |
| 515 | 4 point inside character constant |
| 516 | nil otherwise." |
| 517 | ;; first, find out if this is a compiler directive line |
| 518 | (if (save-excursion |
| 519 | (beginning-of-line) |
| 520 | (eq (following-char) ?%)) |
| 521 | ;; YES - return 1 |
| 522 | 1 |
| 523 | (save-excursion |
| 524 | ;; The current line is NOT a compiler directive line. |
| 525 | ;; Now, the strategy is to search backward to find a semicolon |
| 526 | ;; that is NOT inside a string. The point after semicolon MUST be |
| 527 | ;; outside a comment, since semicolons are comment-ending and |
| 528 | ;; comments are non-recursive. We take advantage of the fact |
| 529 | ;; that strings MUST end on the same line as they started, so |
| 530 | ;; that we can easily decide whether we are inside a string or not. |
| 531 | (let (return-value (origin (point))) |
| 532 | (skip-chars-backward "^;" (point-min)) |
| 533 | ;; found semicolon or beginning of buffer |
| 534 | (let (loopvalue (saved-point origin)) |
| 535 | (while (and (not (bobp)) |
| 536 | (if (progn |
| 537 | (beginning-of-line) |
| 538 | ;; compiler directive line? If so, cont searching.. |
| 539 | (eq (following-char) ?%)) |
| 540 | t |
| 541 | (while (< (point) saved-point) |
| 542 | (skip-chars-forward "^;\"'") |
| 543 | (forward-char 1) |
| 544 | (cond |
| 545 | ((eq (preceding-char) ?\;) |
| 546 | (setq saved-point (point))) |
| 547 | ((eq (preceding-char) ?\") |
| 548 | (skip-chars-forward "^\";") |
| 549 | (if (eq (following-char) ?\;) |
| 550 | (setq saved-point (point) loopvalue t) |
| 551 | (forward-char 1))) |
| 552 | (t |
| 553 | (if (eq (following-char) ?') |
| 554 | (forward-char 1)) |
| 555 | (skip-chars-forward "^';") |
| 556 | (if (eq (following-char) ?\;) |
| 557 | (setq saved-point (point) loopvalue t) |
| 558 | (forward-char 1))))) |
| 559 | loopvalue)) |
| 560 | (backward-char 1) |
| 561 | (skip-chars-backward "^;") |
| 562 | (setq saved-point (point) loopvalue nil))) |
| 563 | ;; Now we are CERTAIN that we are outside comments and strings. |
| 564 | ;; The job now is to search forward again towards the origin |
| 565 | ;; skipping directives, comments and strings correctly, |
| 566 | ;; so that we know what context we are in when we find the origin. |
| 567 | (while (and |
| 568 | (< (point) origin) |
| 569 | (re-search-forward |
| 570 | "\\<end\\>\\|!\\|\"\\|'\\|^%\\|\\<comment\\>" origin 'move)) |
| 571 | (cond |
| 572 | ((memq (preceding-char) '(?d ?D)) |
| 573 | (setq return-value 2) |
| 574 | (while (and (re-search-forward |
| 575 | ";\\|\\<end\\>\\|\\<else\\>\\|\\<otherwise\\>\\|\\<when\\>\\|^%" |
| 576 | origin 'move) |
| 577 | ;; found another END? |
| 578 | (or (memq (preceding-char) '(?d ?D)) |
| 579 | ;; if directive, skip line |
| 580 | (and (eq (preceding-char) ?%) |
| 581 | (beginning-of-line 2)) |
| 582 | ;; found other keyword, out of END comment |
| 583 | (setq return-value nil)))) |
| 584 | (if (and (eq (char-syntax (preceding-char)) ?w) |
| 585 | (eq (char-syntax (following-char)) ?w)) |
| 586 | (save-excursion |
| 587 | (backward-word 1) |
| 588 | (if (looking-at "end\\>\\|else\\>\\|otherwise\\>\\|when\\>") |
| 589 | (setq return-value nil))))) |
| 590 | ((memq (preceding-char) '(?! ?t ?T)) |
| 591 | ; skip comment |
| 592 | (setq return-value 0) |
| 593 | (skip-chars-forward "^%;" origin) |
| 594 | (while (and return-value (< (point) origin)) |
| 595 | (if (eq (following-char) ?\;) |
| 596 | (setq return-value nil) |
| 597 | (if (bolp) |
| 598 | (beginning-of-line 2) ; skip directive inside comment |
| 599 | (forward-char 1)) ; or single '%' |
| 600 | (skip-chars-forward "^%;" origin)))) |
| 601 | ((eq (preceding-char) ?\") |
| 602 | (if (not (search-forward "\"" origin 'move)) |
| 603 | (setq return-value 3))) |
| 604 | ((eq (preceding-char) ?\') |
| 605 | (if (or (eq (point) origin) (eobp)) |
| 606 | (setq return-value 4) |
| 607 | (forward-char 1) |
| 608 | (if (not (search-forward "'" origin 'move)) |
| 609 | (setq return-value 4)))) |
| 610 | ;; compiler directive line - skip |
| 611 | (t (beginning-of-line 2)))) |
| 612 | return-value) |
| 613 | ))) |
| 614 | |
| 615 | |
| 616 | (defun simula-electric-label () |
| 617 | "If this is a label that starts the line, reindent the line." |
| 618 | (interactive) |
| 619 | (expand-abbrev) |
| 620 | (insert ?:) |
| 621 | (let ((origin (- (point-max) (point))) |
| 622 | (case-fold-search t) |
| 623 | ;; don't mix a label with an assignment operator := :- |
| 624 | ;; therefore take a peek at next typed character... |
| 625 | (next-char (read-event))) |
| 626 | (unwind-protect |
| 627 | (setq unread-command-events (append unread-command-events |
| 628 | (list next-char))) |
| 629 | ;; Problem: find out if character just read is a command char |
| 630 | ;; that would insert something after ':' making it a label. |
| 631 | ;; At least \n, \r (and maybe \t) falls into this category. |
| 632 | ;; This is a real crock, it depends on traditional keymap |
| 633 | ;; bindings, that is, printing characters doing self-insert, |
| 634 | ;; and no other command sequence inserting '-' or '='. |
| 635 | ;; simula-electric-label can be easily fooled... |
| 636 | (if (and (not (memq next-char '(?= ?-))) |
| 637 | (or (memq next-char '(?\n ?\r)) |
| 638 | (and (eq next-char ?\t) |
| 639 | simula-tab-always-indent) |
| 640 | (not (memq (following-char) '(?= ?-)))) |
| 641 | (not (simula-context)) |
| 642 | ;; label? |
| 643 | (progn |
| 644 | (backward-char 1) |
| 645 | (skip-chars-backward " \t\f") |
| 646 | (skip-chars-backward "a-zA-Z0-9_") |
| 647 | (if (looking-at "virtual\\>") |
| 648 | nil |
| 649 | (skip-chars-backward " \t\f") |
| 650 | (bolp)))) |
| 651 | (let ((amount (simula-calculate-indent))) |
| 652 | (delete-horizontal-space) |
| 653 | (indent-to amount))) |
| 654 | (goto-char (- (point-max) origin))))) |
| 655 | |
| 656 | |
| 657 | (defun simula-backward-up-level (count) |
| 658 | "Move backward up COUNT block levels. |
| 659 | If COUNT is negative, move forward up block level instead." |
| 660 | (interactive "p") |
| 661 | (let ((origin (point)) |
| 662 | (case-fold-search t)) |
| 663 | (condition-case () |
| 664 | (if (> count 0) |
| 665 | (while (> count 0) |
| 666 | (re-search-backward "\\<begin\\>\\|\\<end\\>") |
| 667 | (if (not (simula-context)) |
| 668 | (setq count (if (memq (following-char) '(?b ?B)) |
| 669 | (1- count) |
| 670 | (1+ count))))) |
| 671 | (while (< count 0) |
| 672 | (re-search-forward "\\<begin\\>\\|\\<end\\>") |
| 673 | (backward-word 1) |
| 674 | (if (not (simula-context)) |
| 675 | (setq count (if (memq (following-char) '(?e ?E)) |
| 676 | (1+ count) |
| 677 | (1- count)))) |
| 678 | (backward-word -1))) |
| 679 | ;; If block level not found, jump back to origin and signal an error |
| 680 | (error (progn |
| 681 | (goto-char origin) |
| 682 | (error "No higher block level"))) |
| 683 | (quit (progn |
| 684 | (goto-char origin) |
| 685 | (signal 'quit nil)))))) |
| 686 | |
| 687 | |
| 688 | (defun simula-forward-down-level (count) |
| 689 | "Move forward down COUNT block levels. |
| 690 | If COUNT is negative, move backward down block level instead." |
| 691 | (interactive "p") |
| 692 | ;; When we search for a deeper block level, we must never |
| 693 | ;; get out of the block where we started -> count >= start-count |
| 694 | (let ((start-count count) |
| 695 | (origin (point)) |
| 696 | (case-fold-search t)) |
| 697 | (condition-case () |
| 698 | (if (< count 0) |
| 699 | (while (< count 0) |
| 700 | (re-search-backward "\\<begin\\>\\|\\<end\\>") |
| 701 | (if (not (simula-context)) |
| 702 | (setq count (if (memq (following-char) '(?e ?E)) |
| 703 | (1+ count) |
| 704 | (1- count)))) |
| 705 | (if (< count start-count) (signal 'error nil))) |
| 706 | (while (> count 0) |
| 707 | (re-search-forward "\\<begin\\>\\|\\<end\\>") |
| 708 | (backward-word 1) |
| 709 | (if (not (simula-context)) |
| 710 | (setq count (if (memq (following-char) '(?b ?B)) |
| 711 | (1- count) |
| 712 | (1+ count)))) |
| 713 | (backward-word -1) |
| 714 | ;; deeper level has to be found within starting block |
| 715 | (if (> count start-count) (signal 'error nil)))) |
| 716 | ;; If block level not found, jump back to origin and signal an error |
| 717 | (error (progn |
| 718 | (goto-char origin) |
| 719 | (error "No containing block level"))) |
| 720 | (quit (progn |
| 721 | (goto-char origin) |
| 722 | (signal 'quit nil)))))) |
| 723 | |
| 724 | |
| 725 | (defun simula-previous-statement (count) |
| 726 | "Move backward COUNT statements. |
| 727 | If COUNT is negative, move forward instead." |
| 728 | (interactive "p") |
| 729 | (if (< count 0) |
| 730 | (simula-next-statement (- count)) |
| 731 | (let (status |
| 732 | (case-fold-search t) |
| 733 | (origin (point))) |
| 734 | (condition-case () |
| 735 | ;; |
| 736 | (progn |
| 737 | (simula-skip-comment-backward) |
| 738 | (if (memq (preceding-char) '(?n ?N)) |
| 739 | (progn |
| 740 | (backward-word 1) |
| 741 | (if (not (looking-at "\\<begin\\>")) |
| 742 | (backward-word -1))) |
| 743 | (if (eq (preceding-char) ?\;) |
| 744 | (backward-char 1)) |
| 745 | ) |
| 746 | (while (and (natnump (setq count (1- count))) |
| 747 | (setq status (simula-search-backward |
| 748 | ";\\|\\<begin\\>" nil 'move)))) |
| 749 | (if status |
| 750 | (progn |
| 751 | (if (eq (following-char) ?\;) |
| 752 | (forward-char 1) |
| 753 | (backward-word -1)))) |
| 754 | (simula-skip-comment-forward)) |
| 755 | (error (progn (goto-char origin) |
| 756 | (error "Incomplete statement (too many ENDs)"))) |
| 757 | (quit (progn (goto-char origin) (signal 'quit nil))))))) |
| 758 | |
| 759 | |
| 760 | (defun simula-next-statement (count) |
| 761 | "Move forward COUNT statements. |
| 762 | If COUNT is negative, move backward instead." |
| 763 | (interactive "p") |
| 764 | (if (< count 0) |
| 765 | (simula-previous-statement (- count)) |
| 766 | (let (status |
| 767 | (case-fold-search t) |
| 768 | (origin (point))) |
| 769 | (condition-case () |
| 770 | (progn |
| 771 | (simula-skip-comment-forward) |
| 772 | (if (looking-at "\\<end\\>") (forward-word 1)) |
| 773 | (while (and (natnump (setq count (1- count))) |
| 774 | (setq status (simula-search-forward |
| 775 | ";\\|\\<end\\>" (point-max) 'move)))) |
| 776 | (if (and status (/= (preceding-char) ?\;)) |
| 777 | (progn |
| 778 | (backward-word 1) |
| 779 | (simula-skip-comment-backward)))) |
| 780 | (error (progn (goto-char origin) |
| 781 | (error "Incomplete statement (too few ENDs)"))) |
| 782 | (quit (progn (goto-char origin) (signal 'quit nil))))))) |
| 783 | |
| 784 | |
| 785 | (defun simula-skip-comment-backward (&optional stop-at-end) |
| 786 | "Search towards bob to find first char that is outside a comment." |
| 787 | (interactive) |
| 788 | (catch 'simula-out |
| 789 | (let (context) |
| 790 | (while t |
| 791 | (skip-chars-backward " \t\n\f") |
| 792 | (if (eq (preceding-char) ?\;) |
| 793 | (save-excursion |
| 794 | (backward-char 1) |
| 795 | (setq context (simula-context)) |
| 796 | (if (and stop-at-end (eq context 2)) |
| 797 | (setq context nil))) |
| 798 | (setq context (simula-context))) |
| 799 | (cond |
| 800 | ((memq context '(nil 3 4)) |
| 801 | ;; check to see if we found a label |
| 802 | (if (and (eq (preceding-char) ?:) |
| 803 | (not (memq (following-char) '(?- ?=))) |
| 804 | (save-excursion |
| 805 | (skip-chars-backward ": \t\fa-zA-Z0-9_") |
| 806 | (not (looking-at "virtual\\>")))) |
| 807 | (skip-chars-backward ": \t\fa-zA-Z0-9_") |
| 808 | (throw 'simula-out nil))) |
| 809 | ((eq context 0) |
| 810 | ;; since we are inside a comment, it must start somewhere! |
| 811 | (while (and (re-search-backward "!\\|\\<comment\\>") |
| 812 | (memq (simula-context) '(0 1))))) |
| 813 | ((eq context 1) |
| 814 | (beginning-of-line) |
| 815 | (if (bobp) |
| 816 | (throw 'simula-out nil) |
| 817 | (backward-char))) |
| 818 | ((eq context 2) |
| 819 | ;; an END-comment must belong to an END |
| 820 | (re-search-backward "\\<end\\>") |
| 821 | (forward-word 1) |
| 822 | (throw 'simula-out nil)) |
| 823 | ;; should be impossible to get here.. |
| 824 | ))))) |
| 825 | |
| 826 | |
| 827 | (defun simula-skip-comment-forward () |
| 828 | "Search towards eob to find first char that is outside a comment." |
| 829 | ;; this function assumes we start with point .outside a comment |
| 830 | (interactive) |
| 831 | (catch 'simula-out |
| 832 | (while t |
| 833 | (skip-chars-forward " \t\n\f") |
| 834 | ;; BUG: the following (0 2) branches don't take into account intermixing |
| 835 | ;; directive lines |
| 836 | (cond |
| 837 | ((looking-at "!\\|\\<comment\\>") |
| 838 | (search-forward ";" nil 'move)) |
| 839 | ((and (bolp) (eq (following-char) ?%)) |
| 840 | (beginning-of-line 2)) |
| 841 | ((and (looking-at "[a-z0-9_]*[ \t\f]*:[^-=]") |
| 842 | (not (looking-at "virtual\\>"))) |
| 843 | (skip-chars-forward "a-zA-Z0-9_ \t\f:")) |
| 844 | (t |
| 845 | (throw 'simula-out t)))))) |
| 846 | |
| 847 | |
| 848 | (defun simula-forward-up-level () |
| 849 | (let ((continue-loop t) |
| 850 | (origin (point)) |
| 851 | (case-fold-search t) |
| 852 | return-value |
| 853 | temp) |
| 854 | (while continue-loop |
| 855 | (if (re-search-backward "\\<begin\\>\\|\\<end\\>" (point-min) 'move) |
| 856 | (setq temp (simula-context) |
| 857 | return-value (and (memq (preceding-char) '(?d ?D)) |
| 858 | (memq temp '(nil 2))) |
| 859 | continue-loop (and (not return-value) |
| 860 | (simula-forward-up-level))) |
| 861 | (setq continue-loop nil))) |
| 862 | (if return-value |
| 863 | t |
| 864 | (goto-char origin) |
| 865 | nil))) |
| 866 | |
| 867 | |
| 868 | (defun simula-calculate-indent () |
| 869 | (save-excursion |
| 870 | (let ((where (simula-context)) |
| 871 | (origin (point)) |
| 872 | (indent 0) |
| 873 | continued |
| 874 | start-line |
| 875 | temp |
| 876 | found-end |
| 877 | prev-cont) |
| 878 | (cond |
| 879 | ((eq where 0) |
| 880 | ;; |
| 881 | ;; Comment. |
| 882 | ;; If comment started on previous non-blank line, indent to the |
| 883 | ;; column where the comment started, else indent as that line. |
| 884 | ;; |
| 885 | (skip-chars-backward " \t\n\f") |
| 886 | (while (and (not (bolp)) (eq (simula-context) 0)) |
| 887 | (re-search-backward "^\\|!\\|\\<comment\\>")) |
| 888 | (skip-chars-forward " \t\n\f") |
| 889 | (prog1 |
| 890 | (current-column) |
| 891 | (goto-char origin))) |
| 892 | ((eq where 1) |
| 893 | ;; |
| 894 | ;; Directive. Always 0. |
| 895 | ;; |
| 896 | 0) |
| 897 | ;; |
| 898 | ;; Detect missing string delimiters |
| 899 | ;; |
| 900 | ((eq where 3) |
| 901 | (error "Inside string")) |
| 902 | ((eq where 4) |
| 903 | (error "Inside character constant")) |
| 904 | ;; |
| 905 | ;; check to see if inside ()'s |
| 906 | ;; |
| 907 | ((setq temp (simula-inside-parens)) |
| 908 | temp) |
| 909 | ;; |
| 910 | ;; Calculate non-comment indentation |
| 911 | (t |
| 912 | ;; first, find out if this line starts with something that needs |
| 913 | ;; special indentation (END/IF/THEN/ELSE/WHEN/OTHERWISE or label) |
| 914 | ;; |
| 915 | (skip-chars-forward " \t\f") |
| 916 | (cond |
| 917 | ;; |
| 918 | ;; END |
| 919 | ;; |
| 920 | ((looking-at "end\\>") |
| 921 | (setq indent (- simula-indent-level) |
| 922 | found-end t)) |
| 923 | ;; |
| 924 | ;; IF/THEN/ELSE |
| 925 | ;; |
| 926 | ((looking-at "if\\>\\|then\\>\\|else\\>") |
| 927 | ;; search for the *starting* IF |
| 928 | (cond |
| 929 | ((memq (following-char) '(?T ?t)) |
| 930 | (setq indent (car simula-if-indent))) |
| 931 | ((memq (following-char) '(?E ?e)) |
| 932 | (setq indent (cdr simula-if-indent))) |
| 933 | (t |
| 934 | (forward-word 1) |
| 935 | (setq indent 0))) |
| 936 | (simula-find-if)) |
| 937 | ;; |
| 938 | ;; WHEN/OTHERWISE |
| 939 | ;; |
| 940 | ((looking-at "when\\>\\|otherwise\\>") |
| 941 | ;; search for corresponding INSPECT |
| 942 | (if (memq (following-char) '(?W ?w)) |
| 943 | (setq indent (car simula-inspect-indent)) |
| 944 | (setq indent (cdr simula-inspect-indent))) |
| 945 | (simula-find-inspect)) |
| 946 | ;; |
| 947 | ;; label: |
| 948 | ;; |
| 949 | ((and (not (looking-at "virtual\\>")) |
| 950 | (looking-at "[a-z0-9_]*[ \t\f]*:[^-=]")) |
| 951 | (setq indent simula-label-offset))) |
| 952 | ;; find line with non-comment text |
| 953 | (simula-skip-comment-backward 'dont-skip-end) |
| 954 | (if (and found-end |
| 955 | (not (eq (preceding-char) ?\;)) |
| 956 | (if (memq (preceding-char) '(?N ?n)) |
| 957 | (save-excursion |
| 958 | (backward-word 1) |
| 959 | (not (looking-at "begin\\>"))) |
| 960 | t)) |
| 961 | (progn |
| 962 | (simula-previous-statement 1) |
| 963 | (simula-skip-comment-backward))) |
| 964 | (setq start-line |
| 965 | (save-excursion (beginning-of-line) (point)) |
| 966 | ;; - perhaps this is a continued statement |
| 967 | continued |
| 968 | (save-excursion |
| 969 | (and (not (bobp)) |
| 970 | ;; (not found-end) |
| 971 | (if (eq (char-syntax (preceding-char)) ?w) |
| 972 | (progn |
| 973 | (backward-word 1) |
| 974 | (not (looking-at |
| 975 | "begin\\|then\\|else\\|when\\|otherwise\\|do" |
| 976 | ))) |
| 977 | (not (memq (preceding-char) '(?: ?\;))))))) |
| 978 | ;; |
| 979 | ;; MAIN calculation loop - count BEGIN/DO etc. |
| 980 | ;; |
| 981 | (while (not (bolp)) |
| 982 | (if (re-search-backward |
| 983 | ";\\|\\<\\(begin\\|end\\|if\\|else\\|then\\|when\\|otherwise\\|do\\)\\>" |
| 984 | start-line 'move) |
| 985 | (if (simula-context) |
| 986 | ();; found something in a comment/string - ignore |
| 987 | (setq temp (following-char)) |
| 988 | (cond |
| 989 | ((eq temp ?\;) |
| 990 | (simula-previous-statement 1)) |
| 991 | ((looking-at "begin\\>") |
| 992 | (setq indent (+ indent simula-indent-level))) |
| 993 | ((looking-at "end\\>") |
| 994 | (forward-word 1) |
| 995 | (simula-previous-statement 1)) |
| 996 | ((looking-at "do\\>") |
| 997 | (setq indent (+ indent simula-substatement-offset)) |
| 998 | (simula-find-do-match)) |
| 999 | ((looking-at "\\(if\\|then\\|else\\)\\>") |
| 1000 | (if (memq temp '(?I ?i)) |
| 1001 | (forward-word 1) |
| 1002 | (setq indent (+ indent |
| 1003 | simula-substatement-offset |
| 1004 | (if (memq temp '(?T ?t)) |
| 1005 | (car simula-if-indent) |
| 1006 | (cdr simula-if-indent))))) |
| 1007 | (simula-find-if)) |
| 1008 | ((looking-at "\\<when\\>\\|\\<otherwise\\>") |
| 1009 | (setq indent (+ indent |
| 1010 | simula-substatement-offset |
| 1011 | (if (memq temp '(?W ?w)) |
| 1012 | (car simula-if-indent) |
| 1013 | (cdr simula-if-indent)))) |
| 1014 | (simula-find-inspect))) |
| 1015 | ;; found the start of a [sub]statement |
| 1016 | ;; add indentation for continued statement |
| 1017 | (if continued |
| 1018 | (setq indent |
| 1019 | (+ indent |
| 1020 | (if (listp simula-continued-statement-offset) |
| 1021 | (car simula-continued-statement-offset) |
| 1022 | simula-continued-statement-offset)))) |
| 1023 | (setq start-line |
| 1024 | (save-excursion (beginning-of-line) (point)) |
| 1025 | continued nil)) |
| 1026 | ;; search failed .. point is at beginning of line |
| 1027 | ;; determine if we should continue searching |
| 1028 | ;; (at or before comment or label) |
| 1029 | ;; temp = t means finished |
| 1030 | (setq temp |
| 1031 | (and (not (simula-context)) |
| 1032 | (save-excursion |
| 1033 | (skip-chars-forward " \t\f") |
| 1034 | (or (looking-at "virtual") |
| 1035 | (not |
| 1036 | (looking-at |
| 1037 | "!\\|comment\\>\\|[a-z0-9_]*[ \t\f]*:[^-=]"))))) |
| 1038 | prev-cont continued) |
| 1039 | ;; if we are finished, find current line's indentation |
| 1040 | (if temp |
| 1041 | (setq indent (+ indent (current-indentation)))) |
| 1042 | ;; find next line with non-comment SIMULA text |
| 1043 | ;; maybe indent extra if statement continues |
| 1044 | (simula-skip-comment-backward) |
| 1045 | (setq continued |
| 1046 | (and (not (bobp)) |
| 1047 | (if (eq (char-syntax (preceding-char)) ?w) |
| 1048 | (save-excursion |
| 1049 | (backward-word 1) |
| 1050 | (not (looking-at |
| 1051 | "begin\\|then\\|else\\|when\\|otherwise\\|do"))) |
| 1052 | (not (memq (preceding-char) '(?: ?\;)))))) |
| 1053 | ;; if we the state of the continued-variable |
| 1054 | ;; changed, add indentation for continued statement |
| 1055 | (if (or (and prev-cont (not continued)) |
| 1056 | (and continued |
| 1057 | (listp simula-continued-statement-offset))) |
| 1058 | (setq indent |
| 1059 | (+ indent |
| 1060 | (if (listp simula-continued-statement-offset) |
| 1061 | (car simula-continued-statement-offset) |
| 1062 | simula-continued-statement-offset)))) |
| 1063 | ;; while ends if point is at beginning of line at loop test |
| 1064 | (if (not temp) |
| 1065 | (setq start-line (save-excursion (beginning-of-line) (point))) |
| 1066 | (beginning-of-line)))) |
| 1067 | ;; |
| 1068 | ;; return indentation |
| 1069 | ;; |
| 1070 | indent))))) |
| 1071 | |
| 1072 | |
| 1073 | (defun simula-find-if () |
| 1074 | "Find starting IF of a IF-THEN[-ELSE[-IF-THEN...]] statement." |
| 1075 | (catch 'simula-out |
| 1076 | (while t |
| 1077 | (if (and (simula-search-backward "\\<if\\>\\|;\\|\\<begin\\>"nil t) |
| 1078 | (memq (following-char) '(?I ?i))) |
| 1079 | (save-excursion |
| 1080 | ;; |
| 1081 | ;; find out if this IF was really the start of the IF statement |
| 1082 | ;; |
| 1083 | (simula-skip-comment-backward) |
| 1084 | (if (and (eq (char-syntax (preceding-char)) ?w) |
| 1085 | (progn |
| 1086 | (backward-word 1) |
| 1087 | (looking-at "else\\>"))) |
| 1088 | () |
| 1089 | (throw 'simula-out t))) |
| 1090 | (if (not (looking-at "\\<if\\>")) |
| 1091 | (error "Missing IF or misplaced BEGIN or ';' (can't find IF)") |
| 1092 | ;; |
| 1093 | ;; we were at the starting IF in the first place.. |
| 1094 | ;; |
| 1095 | (throw 'simula-out t)))))) |
| 1096 | |
| 1097 | |
| 1098 | (defun simula-find-inspect () |
| 1099 | "Find INSPECT matching WHEN or OTHERWISE." |
| 1100 | (catch 'simula-out |
| 1101 | (let ((level 0)) |
| 1102 | ;; |
| 1103 | ;; INSPECTs can be nested, have to find the corresponding one |
| 1104 | ;; |
| 1105 | (while t |
| 1106 | (if (and (simula-search-backward "\\<inspect\\>\\|\\<otherwise\\>\\|;" |
| 1107 | nil t) |
| 1108 | (/= (following-char) ?\;)) |
| 1109 | (if (memq (following-char) '(?O ?o)) |
| 1110 | (setq level (1+ level)) |
| 1111 | (if (zerop level) |
| 1112 | (throw 'simula-out t) |
| 1113 | (setq level (1- level)))) |
| 1114 | (error "Missing INSPECT or misplaced ';' (can't find INSPECT)")))))) |
| 1115 | |
| 1116 | |
| 1117 | (defun simula-find-do-match () |
| 1118 | "Find keyword matching DO: FOR, WHILE, INSPECT or WHEN." |
| 1119 | (while (and (re-search-backward |
| 1120 | "\\<\\(do\\|for\\|while\\|inspect\\|when\\|end\\|begin\\)\\>\\|;" |
| 1121 | nil 'move) |
| 1122 | (simula-context))) |
| 1123 | (if (and (looking-at "\\<\\(for\\|while\\|inspect\\|when\\)\\>") |
| 1124 | (not (simula-context))) |
| 1125 | () ;; found match |
| 1126 | (error "No matching FOR, WHILE or INSPECT for DO, or misplaced ';'"))) |
| 1127 | |
| 1128 | |
| 1129 | (defun simula-inside-parens () |
| 1130 | "Return position after `(' on line if inside parentheses, nil otherwise." |
| 1131 | (save-excursion |
| 1132 | (let ((parlevel 0)) |
| 1133 | (catch 'simula-out |
| 1134 | (while t |
| 1135 | (if (re-search-backward "(\\|)\\|;" nil t) |
| 1136 | (if (eq (simula-context) nil) |
| 1137 | ;; found something - check it out |
| 1138 | (cond |
| 1139 | ((eq (following-char) ?\;) |
| 1140 | (if (zerop parlevel) |
| 1141 | (throw 'simula-out nil) |
| 1142 | (error "Parenthesis mismatch or misplaced ';'"))) |
| 1143 | ((eq (following-char) ?\() |
| 1144 | (if (zerop parlevel) |
| 1145 | (throw 'simula-out (1+ (current-column))) |
| 1146 | (setq parlevel (1- parlevel)))) |
| 1147 | (t (setq parlevel (1+ parlevel)))) |
| 1148 | );; nothing - inside comment or string |
| 1149 | ;; search failed |
| 1150 | (throw 'simula-out nil))))))) |
| 1151 | |
| 1152 | |
| 1153 | (defun simula-goto-definition () |
| 1154 | "Goto point of definition of variable, procedure or class." |
| 1155 | (interactive)) |
| 1156 | |
| 1157 | |
| 1158 | (defun simula-expand-stdproc () |
| 1159 | (if (or (not simula-abbrev-stdproc) (simula-context)) |
| 1160 | (unexpand-abbrev) |
| 1161 | (cond |
| 1162 | ((eq simula-abbrev-stdproc 'upcase) (upcase-word -1)) |
| 1163 | ((eq simula-abbrev-stdproc 'downcase) (downcase-word -1)) |
| 1164 | ((eq simula-abbrev-stdproc 'capitalize) (capitalize-word -1)) |
| 1165 | ((eq simula-abbrev-stdproc 'abbrev-table) |
| 1166 | ;; If not in lowercase, expansions are always capitalized. |
| 1167 | ;; We then want to replace with the exact expansion. |
| 1168 | (if (equal (symbol-name last-abbrev) last-abbrev-text) |
| 1169 | () |
| 1170 | (downcase-word -1) |
| 1171 | (expand-abbrev)))))) |
| 1172 | |
| 1173 | |
| 1174 | (defun simula-expand-keyword () |
| 1175 | (if (or (not simula-abbrev-keyword) (simula-context)) |
| 1176 | (unexpand-abbrev) |
| 1177 | (cond |
| 1178 | ((eq simula-abbrev-keyword 'upcase) (upcase-word -1)) |
| 1179 | ((eq simula-abbrev-keyword 'downcase) (downcase-word -1)) |
| 1180 | ((eq simula-abbrev-keyword 'capitalize) (capitalize-word -1)) |
| 1181 | ((eq simula-abbrev-stdproc 'abbrev-table) |
| 1182 | (if (equal (symbol-name last-abbrev) last-abbrev-text) |
| 1183 | () |
| 1184 | (downcase-word -1) |
| 1185 | (expand-abbrev)))))) |
| 1186 | |
| 1187 | |
| 1188 | (defun simula-electric-keyword () |
| 1189 | "Expand SIMULA keyword. If it starts the line, reindent." |
| 1190 | ;; redisplay |
| 1191 | (let ((show-char (eq this-command 'self-insert-command))) |
| 1192 | ;; If the abbrev expansion results in reindentation, the user may have |
| 1193 | ;; to wait some time before the character he typed is displayed |
| 1194 | ;; (the char causing the expansion is inserted AFTER the hook function |
| 1195 | ;; is called). This is annoying in case of normal characters. |
| 1196 | ;; However, if the user pressed a key bound to newline, it is better |
| 1197 | ;; to have the line inserted after the begin-end match. |
| 1198 | (if show-char |
| 1199 | (progn |
| 1200 | (insert-char last-command-event 1) |
| 1201 | (sit-for 0) |
| 1202 | (backward-char 1))) |
| 1203 | (if (let ((where (simula-context)) |
| 1204 | (case-fold-search t)) |
| 1205 | (if where |
| 1206 | (if (and (eq where 2) (eq (char-syntax (preceding-char)) ?w)) |
| 1207 | (save-excursion |
| 1208 | (backward-word 1) |
| 1209 | (not (looking-at "end\\>")))))) |
| 1210 | (unexpand-abbrev) |
| 1211 | (cond |
| 1212 | ((not simula-abbrev-keyword) (unexpand-abbrev)) |
| 1213 | ((eq simula-abbrev-keyword 'upcase) (upcase-word -1)) |
| 1214 | ((eq simula-abbrev-keyword 'downcase) (downcase-word -1)) |
| 1215 | ((eq simula-abbrev-keyword 'capitalize) (capitalize-word -1))) |
| 1216 | (let ((pos (- (point-max) (point))) |
| 1217 | (case-fold-search t) |
| 1218 | null) |
| 1219 | (condition-case null |
| 1220 | (progn |
| 1221 | ;; check if the expanded word is on the beginning of the line. |
| 1222 | (if (and (eq (char-syntax (preceding-char)) ?w) |
| 1223 | (progn |
| 1224 | (backward-word 1) |
| 1225 | (if (looking-at "end\\>") |
| 1226 | (save-excursion |
| 1227 | (simula-backward-up-level 1) |
| 1228 | (if (pos-visible-in-window-p) |
| 1229 | (sit-for 1) |
| 1230 | (message "Matches %s" |
| 1231 | (buffer-substring |
| 1232 | (point) |
| 1233 | (+ (point) (window-width))))))) |
| 1234 | (skip-chars-backward " \t\f") |
| 1235 | (bolp))) |
| 1236 | (let ((indent (simula-calculate-indent))) |
| 1237 | (if (eq indent (current-indentation)) |
| 1238 | () |
| 1239 | (delete-horizontal-space) |
| 1240 | (indent-to indent))) |
| 1241 | (skip-chars-forward " \t\f")) |
| 1242 | ;; check for END - blow whistles and ring bells |
| 1243 | |
| 1244 | (goto-char (- (point-max) pos)) |
| 1245 | (if show-char |
| 1246 | (delete-char 1))) |
| 1247 | (quit (goto-char (- (point-max) pos)))))))) |
| 1248 | |
| 1249 | |
| 1250 | (defun simula-search-backward (regexp &optional bound noerror) |
| 1251 | "Search backward from point for regular expression REGEXP, |
| 1252 | ignoring matches found inside SIMULA comments, string literals, |
| 1253 | and BEGIN..END blocks. |
| 1254 | Set point to the end of the occurrence found, and return point. |
| 1255 | An optional second argument BOUND bounds the search, it is a buffer position. |
| 1256 | The match found must not extend after that position. Optional third argument |
| 1257 | NOERROR, if t, means if fail just return nil (no error). |
| 1258 | If not nil and not t, move to limit of search and return nil." |
| 1259 | (let (begin end context (comb-regexp (concat regexp "\\|\\<end\\>")) |
| 1260 | match (start-point (point))) |
| 1261 | (catch 'simula-backward |
| 1262 | (while (re-search-backward comb-regexp bound 1) |
| 1263 | ;; We have a match, check SIMULA context at match-beginning |
| 1264 | ;; to see if we are outside comments etc. |
| 1265 | ;; Set MATCH to t if we found a true match, |
| 1266 | ;; set MATCH to 'BLOCK if we found a BEGIN..END block, |
| 1267 | ;; else set MATCH to nil. |
| 1268 | (save-match-data |
| 1269 | (setq context (simula-context)) |
| 1270 | (cond |
| 1271 | ((eq context nil) |
| 1272 | (setq match (if (looking-at regexp) t 'BLOCK))) |
| 1273 | ;; A comment-ending `;' is part of the comment, and shouldn't match. |
| 1274 | ;; ((eq context 0) |
| 1275 | ;; (setq match (if (eq (following-char) ?\;) t nil))) |
| 1276 | ((eq context 2) |
| 1277 | (setq match (if (and (looking-at regexp) |
| 1278 | (looking-at ";\\|\\<end\\>\\|\\<else\\>\\|\\<otherwise\\>\\|\\<when\\>")) |
| 1279 | t |
| 1280 | (if (looking-at "\\<end\\>") 'BLOCK nil)))) |
| 1281 | (t (setq match nil)))) |
| 1282 | ;; Exit if true match |
| 1283 | (if (eq match t) (throw 'simula-backward (point))) |
| 1284 | (if (eq match 'BLOCK) |
| 1285 | ;; We found the END of a block |
| 1286 | (let ((level 0)) |
| 1287 | (while (natnump level) |
| 1288 | (if (re-search-backward "\\<begin\\>\\|\\<end\\>" bound 1) |
| 1289 | (let ((context (simula-context))) |
| 1290 | ;; We found a BEGIN -> decrease level count |
| 1291 | (cond ((and (eq context nil) |
| 1292 | (memq (following-char) '(?b ?B))) |
| 1293 | (setq level (1- level))) |
| 1294 | ;; END -> increase level count |
| 1295 | ((and (memq context '(nil 2)) |
| 1296 | (memq (following-char) '(?e ?E))) |
| 1297 | (setq level (1+ level))))) |
| 1298 | ;; Block search failed. Action depends on noerror. |
| 1299 | (if (or (not noerror) (eq noerror t)) |
| 1300 | (goto-char start-point)) |
| 1301 | (if (not noerror) |
| 1302 | (signal 'search-failed (list regexp))) |
| 1303 | (throw 'simula-backward nil)))))) |
| 1304 | ;; Search failed. Action depends on noerror. |
| 1305 | (if (or (not noerror) (eq noerror t)) |
| 1306 | (goto-char start-point)) |
| 1307 | (if noerror |
| 1308 | nil |
| 1309 | (signal 'search-failed (list regexp)))))) |
| 1310 | |
| 1311 | |
| 1312 | (defun simula-search-forward (regexp &optional bound noerror) |
| 1313 | "Search forward from point for regular expression REGEXP, |
| 1314 | ignoring matches found inside SIMULA comments, string literals, |
| 1315 | and BEGIN..END blocks. |
| 1316 | Set point to the end of the occurrence found, and return point. |
| 1317 | An optional second argument BOUND bounds the search, it is a buffer position. |
| 1318 | The match found must not extend after that position. Optional third argument |
| 1319 | NOERROR, if t, means if fail just return nil (no error). |
| 1320 | If not nil and not t, move to limit of search and return nil." |
| 1321 | (let (begin end context (comb-regexp (concat regexp "\\|\\<begin\\>")) |
| 1322 | match (start-point (point))) |
| 1323 | (catch 'simula-forward |
| 1324 | (while (re-search-forward comb-regexp bound 1) |
| 1325 | ;; We have a match, check SIMULA context at match-beginning |
| 1326 | ;; to see if we are outside comments. |
| 1327 | ;; Set MATCH to t if we found a true match, |
| 1328 | ;; set MATCH to 'BLOCK if we found a BEGIN..END block, |
| 1329 | ;; else set MATCH to nil. |
| 1330 | (save-match-data |
| 1331 | (save-excursion |
| 1332 | (goto-char (match-beginning 0)) |
| 1333 | (setq context (simula-context)) |
| 1334 | (cond |
| 1335 | ((not context) |
| 1336 | (setq match (if (looking-at regexp) t 'BLOCK))) |
| 1337 | ;; Comment-ending `;' is part of the comment, and shouldn't match. |
| 1338 | ;; ((eq context 0) |
| 1339 | ;; (setq match (if (eq (following-char) ?\;) t nil))) |
| 1340 | ((eq context 2) |
| 1341 | (setq match (if (and (looking-at regexp) |
| 1342 | (looking-at ";\\|\\<end\\>\\|\\<else\\>\\|\\<otherwise\\>\\|\\<when\\>")) t nil))) |
| 1343 | (t (setq match nil))))) |
| 1344 | ;; Exit if true match |
| 1345 | (if (eq match t) (throw 'simula-forward (point))) |
| 1346 | (if (eq match 'BLOCK) |
| 1347 | ;; We found the BEGINning of a block |
| 1348 | (let ((level 0)) |
| 1349 | (while (natnump level) |
| 1350 | (if (re-search-forward "\\<begin\\>\\|\\<end\\>" bound 1) |
| 1351 | (let ((context (simula-context))) |
| 1352 | ;; We found a BEGIN -> increase level count |
| 1353 | (cond ((eq context nil) (setq level (1+ level))) |
| 1354 | ;; END -> decrease level count |
| 1355 | ((and (eq context 2) |
| 1356 | ;; Don't match BEGIN inside END comment |
| 1357 | (memq (preceding-char) '(?d ?D))) |
| 1358 | (setq level (1- level))))) |
| 1359 | ;; Block search failed. Action depends on noerror. |
| 1360 | (if (or (not noerror) (eq noerror t)) |
| 1361 | (goto-char start-point)) |
| 1362 | (if (not noerror) |
| 1363 | (signal 'search-failed (list regexp))) |
| 1364 | (throw 'simula-forward nil)))))) |
| 1365 | ;; Search failed. Action depends on noerror. |
| 1366 | (if (or (not noerror) (eq noerror t)) |
| 1367 | (goto-char start-point)) |
| 1368 | (if noerror |
| 1369 | nil |
| 1370 | (signal 'search-failed (list regexp)))))) |
| 1371 | |
| 1372 | |
| 1373 | (defun simula-install-standard-abbrevs () |
| 1374 | "Define Simula keywords, procedures and classes in local abbrev table." |
| 1375 | ;; procedure and class names are as of the SIMULA 87 standard. |
| 1376 | (interactive) |
| 1377 | (dolist (args |
| 1378 | '(("abs" "Abs" simula-expand-stdproc) |
| 1379 | ("accum" "Accum" simula-expand-stdproc) |
| 1380 | ("activate" "ACTIVATE" simula-expand-keyword) |
| 1381 | ("addepsilon" "AddEpsilon" simula-expand-stdproc) |
| 1382 | ("after" "AFTER" simula-expand-keyword) |
| 1383 | ("and" "AND" simula-expand-keyword) |
| 1384 | ("arccos" "ArcCos" simula-expand-stdproc) |
| 1385 | ("arcsin" "ArcSin" simula-expand-stdproc) |
| 1386 | ("arctan" "ArcTan" simula-expand-stdproc) |
| 1387 | ("arctan2" "ArcTan2" simula-expand-stdproc) |
| 1388 | ("array" "ARRAY" simula-expand-keyword) |
| 1389 | ("at" "AT" simula-expand-keyword) |
| 1390 | ("before" "BEFORE" simula-expand-keyword) |
| 1391 | ("begin" "BEGIN" simula-expand-keyword) |
| 1392 | ("blanks" "Blanks" simula-expand-stdproc) |
| 1393 | ("boolean" "BOOLEAN" simula-expand-keyword) |
| 1394 | ("breakoutimage" "BreakOutImage" simula-expand-stdproc) |
| 1395 | ("bytefile" "ByteFile" simula-expand-stdproc) |
| 1396 | ("call" "Call" simula-expand-stdproc) |
| 1397 | ("cancel" "Cancel" simula-expand-stdproc) |
| 1398 | ("cardinal" "Cardinal" simula-expand-stdproc) |
| 1399 | ("char" "Char" simula-expand-stdproc) |
| 1400 | ("character" "CHARACTER" simula-expand-keyword) |
| 1401 | ("checkpoint" "CheckPoint" simula-expand-stdproc) |
| 1402 | ("class" "CLASS" simula-expand-keyword) |
| 1403 | ("clear" "Clear" simula-expand-stdproc) |
| 1404 | ("clocktime" "ClockTime" simula-expand-stdproc) |
| 1405 | ("close" "Close" simula-expand-stdproc) |
| 1406 | ("comment" "COMMENT" simula-expand-keyword) |
| 1407 | ("constant" "Constant" simula-expand-stdproc) |
| 1408 | ("copy" "Copy" simula-expand-stdproc) |
| 1409 | ("cos" "Cos" simula-expand-stdproc) |
| 1410 | ("cosh" "CosH" simula-expand-stdproc) |
| 1411 | ("cotan" "CoTan" simula-expand-stdproc) |
| 1412 | ("cputime" "CpuTime" simula-expand-stdproc) |
| 1413 | ("current" "Current" simula-expand-stdproc) |
| 1414 | ("datetime" "DateTime" simula-expand-stdproc) |
| 1415 | ("decimalmark" "DecimalMark" simula-expand-stdproc) |
| 1416 | ("delay" "DELAY" simula-expand-keyword) |
| 1417 | ("deleteimage" "DeleteImage" simula-expand-stdproc) |
| 1418 | ("detach" "Detach" simula-expand-stdproc) |
| 1419 | ("digit" "Digit" simula-expand-stdproc) |
| 1420 | ("directbytefile" "DirectByteFile" simula-expand-stdproc) |
| 1421 | ("directfile" "DirectFile" simula-expand-stdproc) |
| 1422 | ("discrete" "Discrete" simula-expand-stdproc) |
| 1423 | ("do" "DO" simula-expand-keyword) |
| 1424 | ("downcase" "Downcase" simula-expand-stdproc) |
| 1425 | ("draw" "Draw" simula-expand-stdproc) |
| 1426 | ("eject" "Eject" simula-expand-stdproc) |
| 1427 | ("else" "ELSE" simula-electric-keyword) |
| 1428 | ("empty" "Empty" simula-expand-stdproc) |
| 1429 | ("end" "END" simula-electric-keyword) |
| 1430 | ("endfile" "Endfile" simula-expand-stdproc) |
| 1431 | ("entier" "Entier" simula-expand-stdproc) |
| 1432 | ("eq" "EQ" simula-expand-keyword) |
| 1433 | ("eqv" "EQV" simula-expand-keyword) |
| 1434 | ("erlang" "Erlang" simula-expand-stdproc) |
| 1435 | ("error" "Error" simula-expand-stdproc) |
| 1436 | ("evtime" "EvTime" simula-expand-stdproc) |
| 1437 | ("exp" "Exp" simula-expand-stdproc) |
| 1438 | ("external" "EXTERNAL" simula-expand-keyword) |
| 1439 | ("false" "FALSE" simula-expand-keyword) |
| 1440 | ("field" "Field" simula-expand-stdproc) |
| 1441 | ("file" "File" simula-expand-stdproc) |
| 1442 | ("first" "First" simula-expand-stdproc) |
| 1443 | ("follow" "Follow" simula-expand-stdproc) |
| 1444 | ("for" "FOR" simula-expand-keyword) |
| 1445 | ("ge" "GE" simula-expand-keyword) |
| 1446 | ("getchar" "GetChar" simula-expand-stdproc) |
| 1447 | ("getfrac" "GetFrac" simula-expand-stdproc) |
| 1448 | ("getint" "GetInt" simula-expand-stdproc) |
| 1449 | ("getreal" "GetReal" simula-expand-stdproc) |
| 1450 | ("go" "GO" simula-expand-keyword) |
| 1451 | ("goto" "GOTO" simula-expand-keyword) |
| 1452 | ("gt" "GT" simula-expand-keyword) |
| 1453 | ("head" "Head" simula-expand-stdproc) |
| 1454 | ("hidden" "HIDDEN" simula-expand-keyword) |
| 1455 | ("histd" "HistD" simula-expand-stdproc) |
| 1456 | ("histo" "Histo" simula-expand-stdproc) |
| 1457 | ("hold" "Hold" simula-expand-stdproc) |
| 1458 | ("idle" "Idle" simula-expand-stdproc) |
| 1459 | ("if" "IF" simula-expand-keyword) |
| 1460 | ("image" "Image" simula-expand-stdproc) |
| 1461 | ("imagefile" "ImageFile" simula-expand-stdproc) |
| 1462 | ("imp" "IMP" simula-expand-keyword) |
| 1463 | ("in" "IN" simula-expand-keyword) |
| 1464 | ("inbyte" "InByte" simula-expand-stdproc) |
| 1465 | ("inbytefile" "InByteFile" simula-expand-stdproc) |
| 1466 | ("inchar" "InChar" simula-expand-stdproc) |
| 1467 | ("infile" "InFile" simula-expand-stdproc) |
| 1468 | ("infrac" "InFrac" simula-expand-stdproc) |
| 1469 | ("inimage" "InImage" simula-expand-stdproc) |
| 1470 | ("inint" "InInt" simula-expand-stdproc) |
| 1471 | ("inner" "INNER" simula-expand-keyword) |
| 1472 | ("inreal" "InReal" simula-expand-stdproc) |
| 1473 | ("inrecord" "InRecord" simula-expand-stdproc) |
| 1474 | ("inspect" "INSPECT" simula-expand-keyword) |
| 1475 | ("integer" "INTEGER" simula-expand-keyword) |
| 1476 | ("intext" "InText" simula-expand-stdproc) |
| 1477 | ("into" "Into" simula-expand-stdproc) |
| 1478 | ("is" "IS" simula-expand-keyword) |
| 1479 | ("isochar" "ISOChar" simula-expand-stdproc) |
| 1480 | ("isopen" "IsOpen" simula-expand-stdproc) |
| 1481 | ("isorank" "ISORank" simula-expand-stdproc) |
| 1482 | ("label" "LABEL" simula-expand-keyword) |
| 1483 | ("last" "Last" simula-expand-stdproc) |
| 1484 | ("lastitem" "LastItem" simula-expand-stdproc) |
| 1485 | ("lastloc" "LastLoc" simula-expand-stdproc) |
| 1486 | ("le" "LE" simula-expand-keyword) |
| 1487 | ("length" "Length" simula-expand-stdproc) |
| 1488 | ("letter" "Letter" simula-expand-stdproc) |
| 1489 | ("line" "Line" simula-expand-stdproc) |
| 1490 | ("linear" "Linear" simula-expand-stdproc) |
| 1491 | ("linesperpage" "LinesPerPage" simula-expand-stdproc) |
| 1492 | ("link" "Link" simula-expand-stdproc) |
| 1493 | ("linkage" "Linkage" simula-expand-stdproc) |
| 1494 | ("ln" "Ln" simula-expand-stdproc) |
| 1495 | ("locate" "Locate" simula-expand-stdproc) |
| 1496 | ("location" "Location" simula-expand-stdproc) |
| 1497 | ("lock" "Lock" simula-expand-stdproc) |
| 1498 | ("locked" "Locked" simula-expand-stdproc) |
| 1499 | ("log10" "Log10" simula-expand-stdproc) |
| 1500 | ("long" "LONG" simula-expand-keyword) |
| 1501 | ("lowcase" "LowCase" simula-expand-stdproc) |
| 1502 | ("lowerbound" "LowerBound" simula-expand-stdproc) |
| 1503 | ("lowten" "LowTen" simula-expand-stdproc) |
| 1504 | ("lt" "LT" simula-expand-keyword) |
| 1505 | ("main" "Main" simula-expand-stdproc) |
| 1506 | ("max" "Max" simula-expand-stdproc) |
| 1507 | ("maxint" "MaxInt" simula-expand-stdproc) |
| 1508 | ("maxlongreal" "MaxLongReal" simula-expand-stdproc) |
| 1509 | ("maxloc" "MaxLoc" simula-expand-stdproc) |
| 1510 | ("maxrank" "MaxRank" simula-expand-stdproc) |
| 1511 | ("maxreal" "MaxReal" simula-expand-stdproc) |
| 1512 | ("min" "Min" simula-expand-stdproc) |
| 1513 | ("minint" "MinInt" simula-expand-stdproc) |
| 1514 | ("minlongreal" "MinLongReal" simula-expand-stdproc) |
| 1515 | ("minrank" "MinRank" simula-expand-stdproc) |
| 1516 | ("minreal" "MinReal" simula-expand-stdproc) |
| 1517 | ("mod" "Mod" simula-expand-stdproc) |
| 1518 | ("more" "More" simula-expand-stdproc) |
| 1519 | ("name" "NAME" simula-expand-keyword) |
| 1520 | ("ne" "NE" simula-expand-keyword) |
| 1521 | ("negexp" "NegExp" simula-expand-stdproc) |
| 1522 | ("new" "NEW" simula-expand-keyword) |
| 1523 | ("nextev" "NextEv" simula-expand-stdproc) |
| 1524 | ("none" "NONE" simula-expand-keyword) |
| 1525 | ("normal" "Normal" simula-expand-stdproc) |
| 1526 | ("not" "NOT" simula-expand-keyword) |
| 1527 | ("notext" "NOTEXT" simula-expand-keyword) |
| 1528 | ("open" "Open" simula-expand-stdproc) |
| 1529 | ("or" "OR" simula-expand-keyword) |
| 1530 | ("otherwise" "OTHERWISE" simula-electric-keyword) |
| 1531 | ("out" "Out" simula-expand-stdproc) |
| 1532 | ("outbyte" "OutByte" simula-expand-stdproc) |
| 1533 | ("outbytefile" "OutByteFile" simula-expand-stdproc) |
| 1534 | ("outchar" "OutChar" simula-expand-stdproc) |
| 1535 | ("outfile" "OutFile" simula-expand-stdproc) |
| 1536 | ("outfix" "OutFix" simula-expand-stdproc) |
| 1537 | ("outfrac" "OutFrac" simula-expand-stdproc) |
| 1538 | ("outimage" "OutImage" simula-expand-stdproc) |
| 1539 | ("outint" "OutInt" simula-expand-stdproc) |
| 1540 | ("outreal" "OutReal" simula-expand-stdproc) |
| 1541 | ("outrecord" "OutRecord" simula-expand-stdproc) |
| 1542 | ("outtext" "OutText" simula-expand-stdproc) |
| 1543 | ("page" "Page" simula-expand-stdproc) |
| 1544 | ("passivate" "Passivate" simula-expand-stdproc) |
| 1545 | ("poisson" "Poisson" simula-expand-stdproc) |
| 1546 | ("pos" "Pos" simula-expand-stdproc) |
| 1547 | ("precede" "Precede" simula-expand-stdproc) |
| 1548 | ("pred" "Pred" simula-expand-stdproc) |
| 1549 | ("prev" "Prev" simula-expand-stdproc) |
| 1550 | ("printfile" "PrintFile" simula-expand-stdproc) |
| 1551 | ("prior" "PRIOR" simula-expand-keyword) |
| 1552 | ("procedure" "PROCEDURE" simula-expand-keyword) |
| 1553 | ("process" "Process" simula-expand-stdproc) |
| 1554 | ("protected" "PROTECTED" simula-expand-keyword) |
| 1555 | ("putchar" "PutChar" simula-expand-stdproc) |
| 1556 | ("putfix" "PutFix" simula-expand-stdproc) |
| 1557 | ("putfrac" "PutFrac" simula-expand-stdproc) |
| 1558 | ("putint" "PutInt" simula-expand-stdproc) |
| 1559 | ("putreal" "PutReal" simula-expand-stdproc) |
| 1560 | ("qua" "QUA" simula-expand-keyword) |
| 1561 | ("randint" "RandInt" simula-expand-stdproc) |
| 1562 | ("rank" "Rank" simula-expand-stdproc) |
| 1563 | ("reactivate" "REACTIVATE" simula-expand-keyword) |
| 1564 | ("real" "REAL" simula-expand-keyword) |
| 1565 | ("ref" "REF" simula-expand-keyword) |
| 1566 | ("resume" "Resume" simula-expand-stdproc) |
| 1567 | ("setaccess" "SetAccess" simula-expand-stdproc) |
| 1568 | ("setpos" "SetPos" simula-expand-stdproc) |
| 1569 | ("short" "SHORT" simula-expand-keyword) |
| 1570 | ("sign" "Sign" simula-expand-stdproc) |
| 1571 | ("simset" "SimSet" simula-expand-stdproc) |
| 1572 | ("simulaid" "SimulaId" simula-expand-stdproc) |
| 1573 | ("simulation" "Simulation" simula-expand-stdproc) |
| 1574 | ("sin" "Sin" simula-expand-stdproc) |
| 1575 | ("sinh" "SinH" simula-expand-stdproc) |
| 1576 | ("sourceline" "SourceLine" simula-expand-stdproc) |
| 1577 | ("spacing" "Spacing" simula-expand-stdproc) |
| 1578 | ("sqrt" "Sqrt" simula-expand-stdproc) |
| 1579 | ("start" "Start" simula-expand-stdproc) |
| 1580 | ("step" "STEP" simula-expand-keyword) |
| 1581 | ("strip" "Strip" simula-expand-stdproc) |
| 1582 | ("sub" "Sub" simula-expand-stdproc) |
| 1583 | ("subepsilon" "SubEpsilon" simula-expand-stdproc) |
| 1584 | ("suc" "Suc" simula-expand-stdproc) |
| 1585 | ("switch" "SWITCH" simula-expand-keyword) |
| 1586 | ("sysin" "SysIn" simula-expand-stdproc) |
| 1587 | ("sysout" "SysOut" simula-expand-stdproc) |
| 1588 | ("tan" "Tan" simula-expand-stdproc) |
| 1589 | ("tanh" "TanH" simula-expand-stdproc) |
| 1590 | ("terminate_program" "Terminate_Program" simula-expand-stdproc) |
| 1591 | ("terminated" "Terminated" simula-expand-stdproc) |
| 1592 | ("text" "TEXT" simula-expand-keyword) |
| 1593 | ("then" "THEN" simula-electric-keyword) |
| 1594 | ("this" "THIS" simula-expand-keyword) |
| 1595 | ("time" "Time" simula-expand-stdproc) |
| 1596 | ("to" "TO" simula-expand-keyword) |
| 1597 | ("true" "TRUE" simula-expand-keyword) |
| 1598 | ("uniform" "Uniform" simula-expand-stdproc) |
| 1599 | ("unlock" "Unlock" simula-expand-stdproc) |
| 1600 | ("until" "UNTIL" simula-expand-keyword) |
| 1601 | ("upcase" "Upcase" simula-expand-stdproc) |
| 1602 | ("upperbound" "UpperBound" simula-expand-stdproc) |
| 1603 | ("value" "VALUE" simula-expand-keyword) |
| 1604 | ("virtual" "VIRTUAL" simula-expand-keyword) |
| 1605 | ("wait" "Wait" simula-expand-stdproc) |
| 1606 | ("when" "WHEN" simula-electric-keyword) |
| 1607 | ("while" "WHILE" simula-expand-keyword))) |
| 1608 | (define-abbrev simula-mode-abbrev-table |
| 1609 | (nth 0 args) (nth 1 args) (nth 2 args) nil 'system))) |
| 1610 | |
| 1611 | (if simula-abbrev-file |
| 1612 | (read-abbrev-file simula-abbrev-file)) |
| 1613 | (let (abbrevs-changed) |
| 1614 | (simula-install-standard-abbrevs)) |
| 1615 | |
| 1616 | ;; Hilit mode support. |
| 1617 | (when (fboundp 'hilit-set-mode-patterns) |
| 1618 | (when (and (boundp 'hilit-patterns-alist) |
| 1619 | (not (assoc 'simula-mode hilit-patterns-alist))) |
| 1620 | (hilit-set-mode-patterns |
| 1621 | 'simula-mode |
| 1622 | '( |
| 1623 | ("^%\\([ \t\f].*\\)?$" nil comment) |
| 1624 | ("^%include\\>" nil include) |
| 1625 | ("\"[^\"\n]*\"\\|'.'\\|'![0-9]+!'" nil string) |
| 1626 | ("\\<\\(ACTIVATE\\|AFTER\\|AND\\|ARRAY\\|AT\\|BEFORE\\|BEGIN\\|BOOLEAN\\|CHARACTER\\|CLASS\\|DELAY\\|DO\\|ELSE\\|END\\|EQ\\|EQV\\|EXTERNAL\\|FALSE\\|FOR\\|GE\\|GO\\|GOTO\\|GT\\|HIDDEN\\|IF\\|IMP\\|IN\\|INNER\\|INSPECT\\|INTEGER\\|IS\\|LABEL\\|LE\\|LONG\\|LT\\|NAME\\|NE\\|NEW\\|NONE\\|NOT\\|NOTEXT\\|OR\\|OTHERWISE\\|PRIOR\\|PROCEDURE\\|PROTECTED\\|QUA\\|REACTIVATE\\|REAL\\|REF\\|SHORT\\|STEP\\|SWITCH\\|TEXT\\|THEN\\|THIS\\|TO\\|TRUE\\|UNTIL\\|VALUE\\|VIRTUAL\\|WHEN\\|WHILE\\)\\>" nil keyword) |
| 1627 | ("!\\|\\<COMMENT\\>" ";" comment)) |
| 1628 | nil 'case-insensitive))) |
| 1629 | \f |
| 1630 | ;; defuns for submitting bug reports |
| 1631 | |
| 1632 | (defconst simula-mode-help-address "bug-gnu-emacs@gnu.org" |
| 1633 | "Address accepting submission of `simula-mode' bug reports.") |
| 1634 | |
| 1635 | (defun simula-submit-bug-report () |
| 1636 | "Submit via mail a bug report on `simula-mode'." |
| 1637 | (interactive) |
| 1638 | (and |
| 1639 | (y-or-n-p "Do you want to submit a report on simula-mode? ") |
| 1640 | (reporter-submit-bug-report |
| 1641 | simula-mode-help-address |
| 1642 | (concat "simula-mode from Emacs " emacs-version) |
| 1643 | (list |
| 1644 | ;; report only the vars that affect indentation |
| 1645 | 'simula-indent-level |
| 1646 | 'simula-substatement-offset |
| 1647 | 'simula-continued-statement-offset |
| 1648 | 'simula-label-offset |
| 1649 | 'simula-if-indent |
| 1650 | 'simula-inspect-indent |
| 1651 | 'simula-electric-indent |
| 1652 | 'simula-abbrev-keyword |
| 1653 | 'simula-abbrev-stdproc |
| 1654 | 'simula-abbrev-file |
| 1655 | 'simula-tab-always-indent |
| 1656 | )))) |
| 1657 | |
| 1658 | (provide 'simula) |
| 1659 | |
| 1660 | ;; arch-tag: 488c1bb0-eebf-4f06-93df-1df603f06255 |
| 1661 | ;;; simula.el ends here |