HCoop / bpt / emacs.git / blame
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|---|---|---|
| 6594deb0 ER |
1 | ;;; lisp-mode.el --- Lisp mode, and its idiosyncratic commands. |
| 2 | ||
| 535eadac | 3 | ;; Copyright (C) 1985, 1986, 1999, 2000 Free Software Foundation, Inc. |
| 3a801d0c | 4 | |
| e5167999 | 5 | ;; Maintainer: FSF |
| fd7fa35a | 6 | ;; Keywords: lisp, languages |
| e5167999 | 7 | |
| a90256cc BP |
8 | ;; This file is part of GNU Emacs. |
| 9 | ||
| 10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
| 11 | ;; it under the terms of the GNU General Public License as published by | |
| e5167999 | 12 | ;; the Free Software Foundation; either version 2, or (at your option) |
| a90256cc BP |
13 | ;; any later version. |
| 14 | ||
| 15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | ;; GNU General Public License for more details. | |
| 19 | ||
| 20 | ;; You should have received a copy of the GNU General Public License | |
| b578f267 EN |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
| 22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 23 | ;; Boston, MA 02111-1307, USA. | |
| a90256cc | 24 | |
| e41b2db1 ER |
25 | ;;; Commentary: |
| 26 | ||
| 27 | ;; The base major mode for editing Lisp code (used also for Emacs Lisp). | |
| 535eadac | 28 | ;; This mode is documented in the Emacs manual. |
| e41b2db1 ER |
29 | |
| 30 | ;;; Code: | |
| 31 | ||
| 535eadac | 32 | (defvar lisp-mode-abbrev-table nil) |
| a90256cc | 33 | |
| 535eadac DL |
34 | (defvar emacs-lisp-mode-syntax-table |
| 35 | (let ((table (make-syntax-table))) | |
| a90256cc | 36 | (let ((i 0)) |
| a90256cc | 37 | (while (< i ?0) |
| 535eadac | 38 | (modify-syntax-entry i "_ " table) |
| a90256cc BP |
39 | (setq i (1+ i))) |
| 40 | (setq i (1+ ?9)) | |
| 41 | (while (< i ?A) | |
| 535eadac | 42 | (modify-syntax-entry i "_ " table) |
| a90256cc BP |
43 | (setq i (1+ i))) |
| 44 | (setq i (1+ ?Z)) | |
| 45 | (while (< i ?a) | |
| 535eadac | 46 | (modify-syntax-entry i "_ " table) |
| a90256cc BP |
47 | (setq i (1+ i))) |
| 48 | (setq i (1+ ?z)) | |
| 49 | (while (< i 128) | |
| 535eadac | 50 | (modify-syntax-entry i "_ " table) |
| a90256cc | 51 | (setq i (1+ i))) |
| 535eadac DL |
52 | (modify-syntax-entry ? " " table) |
| 53 | (modify-syntax-entry ?\t " " table) | |
| 54 | (modify-syntax-entry ?\f " " table) | |
| 55 | (modify-syntax-entry ?\n "> " table) | |
| 910762b4 | 56 | ;; Give CR the same syntax as newline, for selective-display. |
| 535eadac DL |
57 | (modify-syntax-entry ?\^m "> " table) |
| 58 | (modify-syntax-entry ?\; "< " table) | |
| 59 | (modify-syntax-entry ?` "' " table) | |
| 60 | (modify-syntax-entry ?' "' " table) | |
| 61 | (modify-syntax-entry ?, "' " table) | |
| a90256cc | 62 | ;; Used to be singlequote; changed for flonums. |
| 535eadac DL |
63 | (modify-syntax-entry ?. "_ " table) |
| 64 | (modify-syntax-entry ?# "' " table) | |
| 65 | (modify-syntax-entry ?\" "\" " table) | |
| 66 | (modify-syntax-entry ?\\ "\\ " table) | |
| 67 | (modify-syntax-entry ?\( "() " table) | |
| 68 | (modify-syntax-entry ?\) ")( " table) | |
| 69 | (modify-syntax-entry ?\[ "(] " table) | |
| 1d3529b6 | 70 | (modify-syntax-entry ?\] ")[ " table)) |
| 535eadac DL |
71 | table)) |
| 72 | ||
| 73 | (defvar lisp-mode-syntax-table | |
| 74 | (let ((table (copy-syntax-table emacs-lisp-mode-syntax-table))) | |
| 535eadac DL |
75 | (modify-syntax-entry ?\[ "_ " table) |
| 76 | (modify-syntax-entry ?\] "_ " table) | |
| 77 | (modify-syntax-entry ?# "' 14bn" table) | |
| e5f597f0 | 78 | (modify-syntax-entry ?| "\" 23b" table) |
| 535eadac | 79 | table)) |
| ecca85de | 80 | |
| a90256cc BP |
81 | (define-abbrev-table 'lisp-mode-abbrev-table ()) |
| 82 | ||
| 6c2cf866 | 83 | (defvar lisp-imenu-generic-expression |
| 535eadac DL |
84 | (list |
| 85 | (list nil | |
| 86 | (purecopy "^\\s-*(def\\(un\\|subst\\|macro\\|advice\\|\ | |
| 87 | ine-skeleton\\|ine-minor-mode\\)\\s-+\\(\\sw\\(\\sw\\|\\s_\\)+\\)") 2) | |
| 88 | (list (purecopy "Variables") | |
| 89 | (purecopy "^\\s-*(def\\(var\\|const\\|custom\\)\\s-+\ | |
| 90 | \\(\\sw\\(\\sw\\|\\s_\\)+\\)") 2) | |
| 91 | (list (purecopy "Types") | |
| 92 | (purecopy "^\\s-*(def\\(group\\|type\\|struct\\|class\\|\ | |
| 93 | ine-condition\\|ine-widget\\|face\\)\\s-+'?\\(\\sw\\(\\sw\\|\\s_\\)+\\)") | |
| 6c2cf866 KH |
94 | 2)) |
| 95 | ||
| 96 | "Imenu generic expression for Lisp mode. See `imenu-generic-expression'.") | |
| 97 | ||
| a90256cc BP |
98 | (defun lisp-mode-variables (lisp-syntax) |
| 99 | (cond (lisp-syntax | |
| a90256cc BP |
100 | (set-syntax-table lisp-mode-syntax-table))) |
| 101 | (setq local-abbrev-table lisp-mode-abbrev-table) | |
| 102 | (make-local-variable 'paragraph-start) | |
| 763d1579 | 103 | (setq paragraph-start (concat page-delimiter "\\|$" )) |
| a90256cc BP |
104 | (make-local-variable 'paragraph-separate) |
| 105 | (setq paragraph-separate paragraph-start) | |
| 106 | (make-local-variable 'paragraph-ignore-fill-prefix) | |
| 107 | (setq paragraph-ignore-fill-prefix t) | |
| 35d132a8 RS |
108 | (make-local-variable 'fill-paragraph-function) |
| 109 | (setq fill-paragraph-function 'lisp-fill-paragraph) | |
| 3272c162 RS |
110 | ;; Adaptive fill mode gets in the way of auto-fill, |
| 111 | ;; and should make no difference for explicit fill | |
| 112 | ;; because lisp-fill-paragraph should do the job. | |
| 113 | (make-local-variable 'adaptive-fill-mode) | |
| 114 | (setq adaptive-fill-mode nil) | |
| 7eb67d79 RS |
115 | (make-local-variable 'normal-auto-fill-function) |
| 116 | (setq normal-auto-fill-function 'lisp-mode-auto-fill) | |
| a90256cc BP |
117 | (make-local-variable 'indent-line-function) |
| 118 | (setq indent-line-function 'lisp-indent-line) | |
| 119 | (make-local-variable 'indent-region-function) | |
| 120 | (setq indent-region-function 'lisp-indent-region) | |
| 121 | (make-local-variable 'parse-sexp-ignore-comments) | |
| 122 | (setq parse-sexp-ignore-comments t) | |
| 5847f861 | 123 | (make-local-variable 'outline-regexp) |
| a8050bff GM |
124 | (setq outline-regexp ";;;;* \\|(") |
| 125 | (make-local-variable 'outline-level) | |
| 126 | (setq outline-level 'lisp-outline-level) | |
| a90256cc BP |
127 | (make-local-variable 'comment-start) |
| 128 | (setq comment-start ";") | |
| 129 | (make-local-variable 'comment-start-skip) | |
| e56a043b MB |
130 | ;; Look within the line for a ; following an even number of backslashes |
| 131 | ;; after either a non-backslash or the line beginning. | |
| 132 | (setq comment-start-skip "\\(\\(^\\|[^\\\\\n]\\)\\(\\\\\\\\\\)*\\);+ *") | |
| 3f0c3d8b SM |
133 | (make-local-variable 'comment-add) |
| 134 | (setq comment-add 1) ;default to `;;' in comment-region | |
| a90256cc BP |
135 | (make-local-variable 'comment-column) |
| 136 | (setq comment-column 40) | |
| e41b2db1 | 137 | (make-local-variable 'comment-indent-function) |
| 6c2cf866 KH |
138 | (setq comment-indent-function 'lisp-comment-indent) |
| 139 | (make-local-variable 'imenu-generic-expression) | |
| 1d3529b6 KH |
140 | (setq imenu-generic-expression lisp-imenu-generic-expression) |
| 141 | (make-local-variable 'multibyte-syntax-as-symbol) | |
| 142 | (setq multibyte-syntax-as-symbol t)) | |
| a8050bff GM |
143 | |
| 144 | (defun lisp-outline-level () | |
| 145 | "Lisp mode `outline-level' function." | |
| 146 | (if (looking-at "(") | |
| 147 | 1000 | |
| 148 | (looking-at outline-regexp) | |
| 149 | (- (match-end 0) (match-beginning 0)))) | |
| 150 | ||
| a90256cc BP |
151 | \f |
| 152 | (defvar shared-lisp-mode-map () | |
| 153 | "Keymap for commands shared by all sorts of Lisp modes.") | |
| 154 | ||
| 155 | (if shared-lisp-mode-map | |
| 156 | () | |
| 157 | (setq shared-lisp-mode-map (make-sparse-keymap)) | |
| 158 | (define-key shared-lisp-mode-map "\e\C-q" 'indent-sexp) | |
| 3bdffa9e | 159 | (define-key shared-lisp-mode-map "\177" 'backward-delete-char-untabify)) |
| a90256cc BP |
160 | |
| 161 | (defvar emacs-lisp-mode-map () | |
| 162 | "Keymap for Emacs Lisp mode. | |
| 3bdffa9e | 163 | All commands in `shared-lisp-mode-map' are inherited by this map.") |
| a90256cc BP |
164 | |
| 165 | (if emacs-lisp-mode-map | |
| 166 | () | |
| b3a3cb63 | 167 | (let ((map (make-sparse-keymap "Emacs-Lisp"))) |
| b8bc6df2 RS |
168 | (setq emacs-lisp-mode-map (make-sparse-keymap)) |
| 169 | (set-keymap-parent emacs-lisp-mode-map shared-lisp-mode-map) | |
| b3a3cb63 KH |
170 | (define-key emacs-lisp-mode-map "\e\t" 'lisp-complete-symbol) |
| 171 | (define-key emacs-lisp-mode-map "\e\C-x" 'eval-defun) | |
| 172 | (define-key emacs-lisp-mode-map [menu-bar] (make-sparse-keymap)) | |
| 173 | (define-key emacs-lisp-mode-map [menu-bar emacs-lisp] | |
| 174 | (cons "Emacs-Lisp" map)) | |
| 175 | (define-key map [edebug-defun] | |
| 176 | '("Instrument Function for Debugging" . edebug-defun)) | |
| 177 | (define-key map [byte-recompile] | |
| 178 | '("Byte-recompile Directory..." . byte-recompile-directory)) | |
| 00e40cc9 | 179 | (define-key map [emacs-byte-compile-and-load] |
| eaec854f | 180 | '("Byte-compile And Load" . emacs-lisp-byte-compile-and-load)) |
| b3a3cb63 KH |
181 | (define-key map [byte-compile] |
| 182 | '("Byte-compile This File" . emacs-lisp-byte-compile)) | |
| 183 | (define-key map [separator-eval] '("--")) | |
| 184 | (define-key map [eval-buffer] '("Evaluate Buffer" . eval-current-buffer)) | |
| 185 | (define-key map [eval-region] '("Evaluate Region" . eval-region)) | |
| 186 | (define-key map [eval-sexp] '("Evaluate Last S-expression" . eval-last-sexp)) | |
| 187 | (define-key map [separator-format] '("--")) | |
| 188 | (define-key map [comment-region] '("Comment Out Region" . comment-region)) | |
| 189 | (define-key map [indent-region] '("Indent Region" . indent-region)) | |
| 4b619eca SM |
190 | (define-key map [indent-line] '("Indent Line" . lisp-indent-line)) |
| 191 | (put 'eval-region 'menu-enable 'mark-active) | |
| 192 | (put 'comment-region 'menu-enable 'mark-active) | |
| 193 | (put 'indent-region 'menu-enable 'mark-active))) | |
| b3a3cb63 KH |
194 | |
| 195 | (defun emacs-lisp-byte-compile () | |
| 196 | "Byte compile the file containing the current buffer." | |
| 197 | (interactive) | |
| 198 | (if buffer-file-name | |
| 199 | (byte-compile-file buffer-file-name) | |
| 767a1151 KH |
200 | (error "The buffer must be saved in a file first"))) |
| 201 | ||
| eaec854f | 202 | (defun emacs-lisp-byte-compile-and-load () |
| 767a1151 KH |
203 | "Byte-compile the current file (if it has changed), then load compiled code." |
| 204 | (interactive) | |
| 205 | (or buffer-file-name | |
| 206 | (error "The buffer must be saved in a file first")) | |
| 207 | (require 'bytecomp) | |
| 208 | ;; Recompile if file or buffer has changed since last compilation. | |
| eaec854f | 209 | (if (and (buffer-modified-p) |
| 535eadac | 210 | (y-or-n-p (format "Save buffer %s first? " (buffer-name)))) |
| eaec854f SM |
211 | (save-buffer)) |
| 212 | (let ((compiled-file-name (byte-compile-dest-file buffer-file-name))) | |
| 213 | (if (file-newer-than-file-p compiled-file-name buffer-file-name) | |
| 214 | (load-file compiled-file-name) | |
| 215 | (byte-compile-file buffer-file-name t)))) | |
| a90256cc | 216 | |
| e596094d DL |
217 | (defcustom emacs-lisp-mode-hook nil |
| 218 | "Hook run when entering Emacs Lisp mode." | |
| 535eadac | 219 | :options '(turn-on-eldoc-mode imenu-add-menubar-index checkdoc-minor-mode) |
| e596094d DL |
220 | :type 'hook |
| 221 | :group 'lisp) | |
| 222 | ||
| 223 | (defcustom lisp-mode-hook nil | |
| 224 | "Hook run when entering Lisp mode." | |
| 225 | :options '(imenu-add-menubar-index) | |
| 226 | :type 'hook | |
| 227 | :group 'lisp) | |
| 228 | ||
| 229 | (defcustom lisp-interaction-mode-hook nil | |
| 230 | "Hook run when entering Lisp Interaction mode." | |
| 231 | :options '(turn-on-eldoc-mode) | |
| 232 | :type 'hook | |
| 233 | :group 'lisp) | |
| 234 | ||
| a90256cc BP |
235 | (defun emacs-lisp-mode () |
| 236 | "Major mode for editing Lisp code to run in Emacs. | |
| 237 | Commands: | |
| 238 | Delete converts tabs to spaces as it moves back. | |
| 239 | Blank lines separate paragraphs. Semicolons start comments. | |
| 240 | \\{emacs-lisp-mode-map} | |
| 241 | Entry to this mode calls the value of `emacs-lisp-mode-hook' | |
| 242 | if that value is non-nil." | |
| 243 | (interactive) | |
| 244 | (kill-all-local-variables) | |
| 245 | (use-local-map emacs-lisp-mode-map) | |
| 246 | (set-syntax-table emacs-lisp-mode-syntax-table) | |
| 247 | (setq major-mode 'emacs-lisp-mode) | |
| 248 | (setq mode-name "Emacs-Lisp") | |
| 249 | (lisp-mode-variables nil) | |
| c0b08eb0 | 250 | (setq imenu-case-fold-search nil) |
| a90256cc BP |
251 | (run-hooks 'emacs-lisp-mode-hook)) |
| 252 | ||
| 535eadac DL |
253 | (defvar lisp-mode-map |
| 254 | (let ((map (make-sparse-keymap))) | |
| 255 | (set-keymap-parent map shared-lisp-mode-map) | |
| 256 | (define-key map "\e\C-x" 'lisp-eval-defun) | |
| 257 | (define-key map "\C-c\C-z" 'run-lisp) | |
| 258 | map) | |
| a90256cc BP |
259 | "Keymap for ordinary Lisp mode. |
| 260 | All commands in `shared-lisp-mode-map' are inherited by this map.") | |
| 261 | ||
| a90256cc BP |
262 | (defun lisp-mode () |
| 263 | "Major mode for editing Lisp code for Lisps other than GNU Emacs Lisp. | |
| 264 | Commands: | |
| 265 | Delete converts tabs to spaces as it moves back. | |
| 266 | Blank lines separate paragraphs. Semicolons start comments. | |
| 267 | \\{lisp-mode-map} | |
| 268 | Note that `run-lisp' may be used either to start an inferior Lisp job | |
| 269 | or to switch back to an existing one. | |
| 270 | ||
| 271 | Entry to this mode calls the value of `lisp-mode-hook' | |
| 272 | if that value is non-nil." | |
| 273 | (interactive) | |
| 274 | (kill-all-local-variables) | |
| 275 | (use-local-map lisp-mode-map) | |
| 276 | (setq major-mode 'lisp-mode) | |
| 277 | (setq mode-name "Lisp") | |
| 278 | (lisp-mode-variables t) | |
| c0b08eb0 | 279 | (setq imenu-case-fold-search t) |
| a90256cc BP |
280 | (set-syntax-table lisp-mode-syntax-table) |
| 281 | (run-hooks 'lisp-mode-hook)) | |
| 282 | ||
| 5e871da0 DL |
283 | ;; This will do unless inf-lisp.el is loaded. |
| 284 | (defun lisp-eval-defun (&optional and-go) | |
| a90256cc BP |
285 | "Send the current defun to the Lisp process made by \\[run-lisp]." |
| 286 | (interactive) | |
| 287 | (error "Process lisp does not exist")) | |
| 288 | ||
| 535eadac DL |
289 | (defvar lisp-interaction-mode-map |
| 290 | (let ((map (make-sparse-keymap))) | |
| 291 | (set-keymap-parent map shared-lisp-mode-map) | |
| 292 | (define-key map "\e\C-x" 'eval-defun) | |
| 293 | (define-key map "\e\t" 'lisp-complete-symbol) | |
| 294 | (define-key map "\n" 'eval-print-last-sexp) | |
| 295 | map) | |
| bacd83a7 | 296 | "Keymap for Lisp Interaction mode. |
| a90256cc BP |
297 | All commands in `shared-lisp-mode-map' are inherited by this map.") |
| 298 | ||
| a90256cc BP |
299 | (defun lisp-interaction-mode () |
| 300 | "Major mode for typing and evaluating Lisp forms. | |
| 301 | Like Lisp mode except that \\[eval-print-last-sexp] evals the Lisp expression | |
| 302 | before point, and prints its value into the buffer, advancing point. | |
| 303 | ||
| 304 | Commands: | |
| 305 | Delete converts tabs to spaces as it moves back. | |
| 306 | Paragraphs are separated only by blank lines. | |
| 307 | Semicolons start comments. | |
| 308 | \\{lisp-interaction-mode-map} | |
| 309 | Entry to this mode calls the value of `lisp-interaction-mode-hook' | |
| 310 | if that value is non-nil." | |
| 311 | (interactive) | |
| 312 | (kill-all-local-variables) | |
| 313 | (use-local-map lisp-interaction-mode-map) | |
| 314 | (setq major-mode 'lisp-interaction-mode) | |
| 315 | (setq mode-name "Lisp Interaction") | |
| 316 | (set-syntax-table emacs-lisp-mode-syntax-table) | |
| 317 | (lisp-mode-variables nil) | |
| 318 | (run-hooks 'lisp-interaction-mode-hook)) | |
| 319 | ||
| 121f0d57 | 320 | (defun eval-print-last-sexp () |
| a90256cc | 321 | "Evaluate sexp before point; print value into current buffer." |
| 121f0d57 | 322 | (interactive) |
| f798d950 JB |
323 | (let ((standard-output (current-buffer))) |
| 324 | (terpri) | |
| 325 | (eval-last-sexp t) | |
| 326 | (terpri))) | |
| a90256cc | 327 | \f |
| 99c6d63b | 328 | (defun eval-last-sexp-1 (eval-last-sexp-arg-internal) |
| a90256cc BP |
329 | "Evaluate sexp before point; print value in minibuffer. |
| 330 | With argument, print output into current buffer." | |
| 99c6d63b | 331 | (let ((standard-output (if eval-last-sexp-arg-internal (current-buffer) t))) |
| efb195f0 RS |
332 | (let ((value |
| 333 | (eval (let ((stab (syntax-table)) | |
| 361721f2 | 334 | (opoint (point)) |
| 05e94d32 | 335 | ignore-quotes |
| 361721f2 KH |
336 | expr) |
| 337 | (unwind-protect | |
| 19b2f8f1 RM |
338 | (save-excursion |
| 339 | (set-syntax-table emacs-lisp-mode-syntax-table) | |
| 05e94d32 RS |
340 | ;; If this sexp appears to be enclosed in `...' |
| 341 | ;; then ignore the surrounding quotes. | |
| 342 | (setq ignore-quotes | |
| 343 | (or (eq (following-char) ?\') | |
| 344 | (eq (preceding-char) ?\'))) | |
| 19b2f8f1 | 345 | (forward-sexp -1) |
| 19b014e4 RS |
346 | ;; If we were after `?\e' (or similar case), |
| 347 | ;; use the whole thing, not just the `e'. | |
| 348 | (when (eq (preceding-char) ?\\) | |
| 349 | (forward-char -1) | |
| 350 | (when (eq (preceding-char) ??) | |
| 351 | (forward-char -1))) | |
| 07ca56eb GM |
352 | |
| 353 | ;; Skip over `#N='s. | |
| 354 | (when (eq (preceding-char) ?=) | |
| 355 | (let (labeled-p) | |
| 356 | (save-excursion | |
| 357 | (skip-chars-backward "0-9#=") | |
| 358 | (setq labeled-p (looking-at "\\(#[0-9]+=\\)+"))) | |
| 359 | (when labeled-p | |
| 360 | (forward-sexp -1)))) | |
| 361 | ||
| cfe158ab | 362 | (save-restriction |
| 05e94d32 RS |
363 | ;; vladimir@cs.ualberta.ca 30-Jul-1997: skip ` in |
| 364 | ;; `variable' so that the value is returned, not the | |
| 365 | ;; name | |
| 366 | (if (and ignore-quotes | |
| 367 | (eq (following-char) ?`)) | |
| 368 | (forward-char)) | |
| cfe158ab | 369 | (narrow-to-region (point-min) opoint) |
| 361721f2 KH |
370 | (setq expr (read (current-buffer))) |
| 371 | ;; If it's an (interactive ...) form, it's more | |
| 372 | ;; useful to show how an interactive call would | |
| 373 | ;; use it. | |
| 374 | (and (consp expr) | |
| 375 | (eq (car expr) 'interactive) | |
| 376 | (setq expr | |
| 377 | (list 'call-interactively | |
| 378 | (list 'quote | |
| 379 | (list 'lambda | |
| 380 | '(&rest args) | |
| 381 | expr | |
| 382 | 'args))))) | |
| 383 | expr)) | |
| efb195f0 RS |
384 | (set-syntax-table stab)))))) |
| 385 | (let ((print-length eval-expression-print-length) | |
| 386 | (print-level eval-expression-print-level)) | |
| 2e0a943f | 387 | (prin1 value))))) |
| a90256cc | 388 | |
| 99c6d63b GM |
389 | (defun eval-last-sexp (eval-last-sexp-arg-internal) |
| 390 | "Evaluate sexp before point; print value in minibuffer. | |
| 391 | With argument, print output into current buffer." | |
| 392 | (interactive "P") | |
| 393 | (if (null eval-expression-debug-on-error) | |
| 394 | (eval-last-sexp-1 eval-last-sexp-arg-internal) | |
| 395 | (let ((old-value (make-symbol "t")) new-value value) | |
| 396 | (let ((debug-on-error old-value)) | |
| 397 | (setq value (eval-last-sexp-1 eval-last-sexp-arg-internal)) | |
| 398 | (setq new-value debug-on-error)) | |
| 399 | (unless (eq old-value new-value) | |
| 400 | (setq debug-on-error new-value)) | |
| 401 | value))) | |
| 402 | ||
| 151a410a RS |
403 | ;; Change defvar into defconst within FORM, |
| 404 | ;; and likewise for other constructs as necessary. | |
| 405 | (defun eval-defun-1 (form) | |
| 406 | (cond ((and (eq (car form) 'defvar) | |
| 407 | (cdr-safe (cdr-safe form))) | |
| 408 | ;; Force variable to be bound. | |
| 409 | (cons 'defconst (cdr form))) | |
| 5e871da0 DL |
410 | ;; `defcustom' is now macroexpanded to |
| 411 | ;; `custom-declare-variable' with a quoted value arg. | |
| 535eadac DL |
412 | ((and (eq (car form) 'custom-declare-variable) |
| 413 | (default-boundp (eval (nth 1 form)))) | |
| 151a410a | 414 | ;; Force variable to be bound. |
| 5e871da0 | 415 | (set-default (eval (nth 1 form)) (eval (nth 1 (nth 2 form)))) |
| 151a410a RS |
416 | form) |
| 417 | ((eq (car form) 'progn) | |
| 418 | (cons 'progn (mapcar 'eval-defun-1 (cdr form)))) | |
| 419 | (t form))) | |
| 420 | ||
| 105d6be1 | 421 | (defun eval-defun-2 () |
| 121f0d57 | 422 | "Evaluate defun that point is in or before. |
| ebc03d28 KH |
423 | The value is displayed in the minibuffer. |
| 424 | If the current defun is actually a call to `defvar', | |
| 425 | then reset the variable using the initial value expression | |
| 426 | even if the variable already has some other value. | |
| 427 | \(Normally `defvar' does not change the variable's value | |
| 428 | if it already has a value.\) | |
| 429 | ||
| 2298f9f7 KH |
430 | With argument, insert value in current buffer after the defun. |
| 431 | Return the result of evaluation." | |
| a90256cc | 432 | (interactive "P") |
| efb195f0 RS |
433 | (let ((debug-on-error eval-expression-debug-on-error) |
| 434 | (print-length eval-expression-print-length) | |
| 435 | (print-level eval-expression-print-level)) | |
| 436 | (save-excursion | |
| 437 | ;; Arrange for eval-region to "read" the (possibly) altered form. | |
| 438 | ;; eval-region handles recording which file defines a function or | |
| 439 | ;; variable. Re-written using `apply' to avoid capturing | |
| 440 | ;; variables like `end'. | |
| 441 | (apply | |
| 442 | #'eval-region | |
| 105d6be1 | 443 | (let ((standard-output t) |
| efb195f0 RS |
444 | beg end form) |
| 445 | ;; Read the form from the buffer, and record where it ends. | |
| 446 | (save-excursion | |
| 447 | (end-of-defun) | |
| 448 | (beginning-of-defun) | |
| 449 | (setq beg (point)) | |
| 450 | (setq form (read (current-buffer))) | |
| 451 | (setq end (point))) | |
| 452 | ;; Alter the form if necessary, changing defvar into defconst, etc. | |
| 453 | (setq form (eval-defun-1 (macroexpand form))) | |
| 454 | (list beg end standard-output | |
| 455 | `(lambda (ignore) | |
| 456 | ;; Skipping to the end of the specified region | |
| 457 | ;; will make eval-region return. | |
| 458 | (goto-char ,end) | |
| 459 | ',form)))))) | |
| 713c3fb1 DL |
460 | ;; The result of evaluation has been put onto VALUES. So return it. |
| 461 | (car values)) | |
| 99c6d63b | 462 | |
| 105d6be1 GM |
463 | (defun eval-defun (edebug-it) |
| 464 | "Evaluate the top-level form containing point, or after point. | |
| 99c6d63b | 465 | |
| 105d6be1 GM |
466 | If the current defun is actually a call to `defvar', then reset the |
| 467 | variable using its initial value expression even if the variable | |
| 468 | already has some other value. (Normally `defvar' does not change the | |
| 469 | variable's value if it already has a value.) | |
| 470 | ||
| 471 | With a prefix argument, instrument the code for Edebug. | |
| 472 | ||
| 473 | If acting on a `defun' for FUNCTION, and the function was | |
| 474 | instrumented, `Edebug: FUNCTION' is printed in the minibuffer. If not | |
| 475 | instrumented, just FUNCTION is printed. | |
| 476 | ||
| 477 | If not acting on a `defun', the result of evaluation is displayed in | |
| 478 | the minibuffer." | |
| 99c6d63b | 479 | (interactive "P") |
| 105d6be1 GM |
480 | (cond (edebug-it |
| 481 | (require 'edebug) | |
| 482 | (eval-defun (not edebug-all-defs))) | |
| 483 | (t | |
| 484 | (if (null eval-expression-debug-on-error) | |
| 485 | (eval-defun-2) | |
| 486 | (let ((old-value (make-symbol "t")) new-value value) | |
| 487 | (let ((debug-on-error old-value)) | |
| 488 | (setq value (eval-defun-2)) | |
| 489 | (setq new-value debug-on-error)) | |
| 490 | (unless (eq old-value new-value) | |
| 491 | (setq debug-on-error new-value)) | |
| 492 | value))))) | |
| 99c6d63b | 493 | |
| a90256cc BP |
494 | \f |
| 495 | (defun lisp-comment-indent () | |
| 496 | (if (looking-at "\\s<\\s<\\s<") | |
| 497 | (current-column) | |
| 498 | (if (looking-at "\\s<\\s<") | |
| 531cbff1 | 499 | (let ((tem (or (calculate-lisp-indent) (current-column)))) |
| a90256cc BP |
500 | (if (listp tem) (car tem) tem)) |
| 501 | (skip-chars-backward " \t") | |
| 502 | (max (if (bolp) 0 (1+ (current-column))) | |
| 503 | comment-column)))) | |
| 504 | ||
| 7eb67d79 RS |
505 | (defun lisp-mode-auto-fill () |
| 506 | (if (> (current-column) (current-fill-column)) | |
| 507 | (if (save-excursion | |
| 508 | (nth 4 (parse-partial-sexp (save-excursion | |
| 509 | (beginning-of-defun) | |
| 510 | (point)) | |
| 511 | (point)))) | |
| 512 | (do-auto-fill) | |
| 513 | (let ((comment-start nil) (comment-start-skip nil)) | |
| 514 | (do-auto-fill))))) | |
| 515 | ||
| 535eadac DL |
516 | (defvar lisp-indent-offset nil) |
| 517 | (defvar lisp-indent-function 'lisp-indent-function) | |
| a90256cc BP |
518 | |
| 519 | (defun lisp-indent-line (&optional whole-exp) | |
| 520 | "Indent current line as Lisp code. | |
| 521 | With argument, indent any additional lines of the same expression | |
| 522 | rigidly along with this one." | |
| 523 | (interactive "P") | |
| 524 | (let ((indent (calculate-lisp-indent)) shift-amt beg end | |
| 525 | (pos (- (point-max) (point)))) | |
| 526 | (beginning-of-line) | |
| 527 | (setq beg (point)) | |
| 528 | (skip-chars-forward " \t") | |
| 531cbff1 RS |
529 | (if (or (null indent) (looking-at "\\s<\\s<\\s<")) |
| 530 | ;; Don't alter indentation of a ;;; comment line | |
| 531 | ;; or a line that starts in a string. | |
| 328561fc | 532 | (goto-char (- (point-max) pos)) |
| a90256cc BP |
533 | (if (and (looking-at "\\s<") (not (looking-at "\\s<\\s<"))) |
| 534 | ;; Single-semicolon comment lines should be indented | |
| 535 | ;; as comment lines, not as code. | |
| 536 | (progn (indent-for-comment) (forward-char -1)) | |
| 537 | (if (listp indent) (setq indent (car indent))) | |
| 538 | (setq shift-amt (- indent (current-column))) | |
| 539 | (if (zerop shift-amt) | |
| 540 | nil | |
| 541 | (delete-region beg (point)) | |
| 542 | (indent-to indent))) | |
| 543 | ;; If initial point was within line's indentation, | |
| 544 | ;; position after the indentation. Else stay at same point in text. | |
| 545 | (if (> (- (point-max) pos) (point)) | |
| 546 | (goto-char (- (point-max) pos))) | |
| 547 | ;; If desired, shift remaining lines of expression the same amount. | |
| 548 | (and whole-exp (not (zerop shift-amt)) | |
| 549 | (save-excursion | |
| 550 | (goto-char beg) | |
| 551 | (forward-sexp 1) | |
| 552 | (setq end (point)) | |
| 553 | (goto-char beg) | |
| 554 | (forward-line 1) | |
| 555 | (setq beg (point)) | |
| 556 | (> end beg)) | |
| 557 | (indent-code-rigidly beg end shift-amt))))) | |
| 558 | ||
| 22486a7f | 559 | (defvar calculate-lisp-indent-last-sexp) |
| c0df1d61 | 560 | |
| a90256cc BP |
561 | (defun calculate-lisp-indent (&optional parse-start) |
| 562 | "Return appropriate indentation for current line as Lisp code. | |
| 563 | In usual case returns an integer: the column to indent to. | |
| 531cbff1 RS |
564 | If the value is nil, that means don't change the indentation |
| 565 | because the line starts inside a string. | |
| 566 | ||
| 567 | The value can also be a list of the form (COLUMN CONTAINING-SEXP-START). | |
| a90256cc | 568 | This means that following lines at the same level of indentation |
| 531cbff1 RS |
569 | should not necessarily be indented the same as this line. |
| 570 | Then COLUMN is the column to indent to, and CONTAINING-SEXP-START | |
| 571 | is the buffer position of the start of the containing expression." | |
| a90256cc BP |
572 | (save-excursion |
| 573 | (beginning-of-line) | |
| 574 | (let ((indent-point (point)) | |
| 575 | state paren-depth | |
| 576 | ;; setting this to a number inhibits calling hook | |
| 577 | (desired-indent nil) | |
| 578 | (retry t) | |
| c0df1d61 | 579 | calculate-lisp-indent-last-sexp containing-sexp) |
| a90256cc BP |
580 | (if parse-start |
| 581 | (goto-char parse-start) | |
| 582 | (beginning-of-defun)) | |
| 583 | ;; Find outermost containing sexp | |
| 584 | (while (< (point) indent-point) | |
| 585 | (setq state (parse-partial-sexp (point) indent-point 0))) | |
| 586 | ;; Find innermost containing sexp | |
| 587 | (while (and retry | |
| 588 | state | |
| 589 | (> (setq paren-depth (elt state 0)) 0)) | |
| 590 | (setq retry nil) | |
| c0df1d61 | 591 | (setq calculate-lisp-indent-last-sexp (elt state 2)) |
| a90256cc BP |
592 | (setq containing-sexp (elt state 1)) |
| 593 | ;; Position following last unclosed open. | |
| 594 | (goto-char (1+ containing-sexp)) | |
| 595 | ;; Is there a complete sexp since then? | |
| c0df1d61 RS |
596 | (if (and calculate-lisp-indent-last-sexp |
| 597 | (> calculate-lisp-indent-last-sexp (point))) | |
| a90256cc | 598 | ;; Yes, but is there a containing sexp after that? |
| c0df1d61 RS |
599 | (let ((peek (parse-partial-sexp calculate-lisp-indent-last-sexp |
| 600 | indent-point 0))) | |
| a90256cc BP |
601 | (if (setq retry (car (cdr peek))) (setq state peek))))) |
| 602 | (if retry | |
| 603 | nil | |
| 604 | ;; Innermost containing sexp found | |
| 605 | (goto-char (1+ containing-sexp)) | |
| c0df1d61 | 606 | (if (not calculate-lisp-indent-last-sexp) |
| a90256cc BP |
607 | ;; indent-point immediately follows open paren. |
| 608 | ;; Don't call hook. | |
| 609 | (setq desired-indent (current-column)) | |
| 610 | ;; Find the start of first element of containing sexp. | |
| c0df1d61 | 611 | (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t) |
| a90256cc BP |
612 | (cond ((looking-at "\\s(") |
| 613 | ;; First element of containing sexp is a list. | |
| 614 | ;; Indent under that list. | |
| 615 | ) | |
| 616 | ((> (save-excursion (forward-line 1) (point)) | |
| c0df1d61 | 617 | calculate-lisp-indent-last-sexp) |
| a90256cc BP |
618 | ;; This is the first line to start within the containing sexp. |
| 619 | ;; It's almost certainly a function call. | |
| c0df1d61 | 620 | (if (= (point) calculate-lisp-indent-last-sexp) |
| a90256cc BP |
621 | ;; Containing sexp has nothing before this line |
| 622 | ;; except the first element. Indent under that element. | |
| 623 | nil | |
| 624 | ;; Skip the first element, find start of second (the first | |
| 625 | ;; argument of the function call) and indent under. | |
| 626 | (progn (forward-sexp 1) | |
| c0df1d61 RS |
627 | (parse-partial-sexp (point) |
| 628 | calculate-lisp-indent-last-sexp | |
| 629 | 0 t))) | |
| a90256cc BP |
630 | (backward-prefix-chars)) |
| 631 | (t | |
| c0df1d61 | 632 | ;; Indent beneath first sexp on same line as |
| 535eadac | 633 | ;; `calculate-lisp-indent-last-sexp'. Again, it's |
| c0df1d61 RS |
634 | ;; almost certainly a function call. |
| 635 | (goto-char calculate-lisp-indent-last-sexp) | |
| a90256cc | 636 | (beginning-of-line) |
| c0df1d61 RS |
637 | (parse-partial-sexp (point) calculate-lisp-indent-last-sexp |
| 638 | 0 t) | |
| a90256cc BP |
639 | (backward-prefix-chars))))) |
| 640 | ;; Point is at the point to indent under unless we are inside a string. | |
| eb8c3be9 | 641 | ;; Call indentation hook except when overridden by lisp-indent-offset |
| a90256cc BP |
642 | ;; or if the desired indentation has already been computed. |
| 643 | (let ((normal-indent (current-column))) | |
| 644 | (cond ((elt state 3) | |
| 645 | ;; Inside a string, don't change indentation. | |
| 531cbff1 | 646 | nil) |
| a90256cc BP |
647 | ((and (integerp lisp-indent-offset) containing-sexp) |
| 648 | ;; Indent by constant offset | |
| 649 | (goto-char containing-sexp) | |
| 650 | (+ (current-column) lisp-indent-offset)) | |
| 651 | (desired-indent) | |
| 652 | ((and (boundp 'lisp-indent-function) | |
| 653 | lisp-indent-function | |
| 654 | (not retry)) | |
| 655 | (or (funcall lisp-indent-function indent-point state) | |
| 656 | normal-indent)) | |
| 657 | (t | |
| f30ff39f | 658 | normal-indent)))))) |
| a90256cc BP |
659 | |
| 660 | (defun lisp-indent-function (indent-point state) | |
| 661 | (let ((normal-indent (current-column))) | |
| 662 | (goto-char (1+ (elt state 1))) | |
| c0df1d61 | 663 | (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t) |
| a90256cc BP |
664 | (if (and (elt state 2) |
| 665 | (not (looking-at "\\sw\\|\\s_"))) | |
| 666 | ;; car of form doesn't seem to be a a symbol | |
| 667 | (progn | |
| 668 | (if (not (> (save-excursion (forward-line 1) (point)) | |
| c0df1d61 RS |
669 | calculate-lisp-indent-last-sexp)) |
| 670 | (progn (goto-char calculate-lisp-indent-last-sexp) | |
| a90256cc | 671 | (beginning-of-line) |
| c0df1d61 RS |
672 | (parse-partial-sexp (point) |
| 673 | calculate-lisp-indent-last-sexp 0 t))) | |
| 674 | ;; Indent under the list or under the first sexp on the same | |
| 675 | ;; line as calculate-lisp-indent-last-sexp. Note that first | |
| 676 | ;; thing on that line has to be complete sexp since we are | |
| 677 | ;; inside the innermost containing sexp. | |
| a90256cc BP |
678 | (backward-prefix-chars) |
| 679 | (current-column)) | |
| 680 | (let ((function (buffer-substring (point) | |
| 681 | (progn (forward-sexp 1) (point)))) | |
| 682 | method) | |
| 2dab7802 RS |
683 | (setq method (or (get (intern-soft function) 'lisp-indent-function) |
| 684 | (get (intern-soft function) 'lisp-indent-hook))) | |
| a90256cc BP |
685 | (cond ((or (eq method 'defun) |
| 686 | (and (null method) | |
| 687 | (> (length function) 3) | |
| 688 | (string-match "\\`def" function))) | |
| 689 | (lisp-indent-defform state indent-point)) | |
| 690 | ((integerp method) | |
| 691 | (lisp-indent-specform method state | |
| 692 | indent-point normal-indent)) | |
| 693 | (method | |
| 694 | (funcall method state indent-point))))))) | |
| 695 | ||
| d7fa5aa2 | 696 | (defvar lisp-body-indent 2 |
| ab69b2fb | 697 | "Number of columns to indent the second line of a `(def...)' form.") |
| a90256cc BP |
698 | |
| 699 | (defun lisp-indent-specform (count state indent-point normal-indent) | |
| 700 | (let ((containing-form-start (elt state 1)) | |
| 701 | (i count) | |
| 702 | body-indent containing-form-column) | |
| 703 | ;; Move to the start of containing form, calculate indentation | |
| 704 | ;; to use for non-distinguished forms (> count), and move past the | |
| 705 | ;; function symbol. lisp-indent-function guarantees that there is at | |
| 706 | ;; least one word or symbol character following open paren of containing | |
| 707 | ;; form. | |
| 708 | (goto-char containing-form-start) | |
| 709 | (setq containing-form-column (current-column)) | |
| 710 | (setq body-indent (+ lisp-body-indent containing-form-column)) | |
| 711 | (forward-char 1) | |
| 712 | (forward-sexp 1) | |
| 713 | ;; Now find the start of the last form. | |
| 714 | (parse-partial-sexp (point) indent-point 1 t) | |
| 715 | (while (and (< (point) indent-point) | |
| 716 | (condition-case () | |
| 717 | (progn | |
| 718 | (setq count (1- count)) | |
| 719 | (forward-sexp 1) | |
| 720 | (parse-partial-sexp (point) indent-point 1 t)) | |
| 721 | (error nil)))) | |
| 722 | ;; Point is sitting on first character of last (or count) sexp. | |
| 723 | (if (> count 0) | |
| 724 | ;; A distinguished form. If it is the first or second form use double | |
| 725 | ;; lisp-body-indent, else normal indent. With lisp-body-indent bound | |
| 726 | ;; to 2 (the default), this just happens to work the same with if as | |
| 727 | ;; the older code, but it makes unwind-protect, condition-case, | |
| 728 | ;; with-output-to-temp-buffer, et. al. much more tasteful. The older, | |
| 729 | ;; less hacked, behavior can be obtained by replacing below with | |
| 730 | ;; (list normal-indent containing-form-start). | |
| 731 | (if (<= (- i count) 1) | |
| 732 | (list (+ containing-form-column (* 2 lisp-body-indent)) | |
| 733 | containing-form-start) | |
| 734 | (list normal-indent containing-form-start)) | |
| 735 | ;; A non-distinguished form. Use body-indent if there are no | |
| 736 | ;; distinguished forms and this is the first undistinguished form, | |
| 737 | ;; or if this is the first undistinguished form and the preceding | |
| 738 | ;; distinguished form has indentation at least as great as body-indent. | |
| 739 | (if (or (and (= i 0) (= count 0)) | |
| 740 | (and (= count 0) (<= body-indent normal-indent))) | |
| 741 | body-indent | |
| 742 | normal-indent)))) | |
| 743 | ||
| 744 | (defun lisp-indent-defform (state indent-point) | |
| 745 | (goto-char (car (cdr state))) | |
| 746 | (forward-line 1) | |
| 747 | (if (> (point) (car (cdr (cdr state)))) | |
| 748 | (progn | |
| 749 | (goto-char (car (cdr state))) | |
| 750 | (+ lisp-body-indent (current-column))))) | |
| 751 | ||
| 752 | \f | |
| 753 | ;; (put 'progn 'lisp-indent-function 0), say, causes progn to be indented | |
| 754 | ;; like defun if the first form is placed on the next line, otherwise | |
| 755 | ;; it is indented like any other form (i.e. forms line up under first). | |
| 756 | ||
| 757 | (put 'lambda 'lisp-indent-function 'defun) | |
| 758 | (put 'autoload 'lisp-indent-function 'defun) | |
| 759 | (put 'progn 'lisp-indent-function 0) | |
| 760 | (put 'prog1 'lisp-indent-function 1) | |
| 761 | (put 'prog2 'lisp-indent-function 2) | |
| 762 | (put 'save-excursion 'lisp-indent-function 0) | |
| 763 | (put 'save-window-excursion 'lisp-indent-function 0) | |
| 4b619eca | 764 | (put 'save-selected-window 'lisp-indent-function 0) |
| a90256cc | 765 | (put 'save-restriction 'lisp-indent-function 0) |
| cfe158ab | 766 | (put 'save-match-data 'lisp-indent-function 0) |
| 38f16fe1 | 767 | (put 'save-current-buffer 'lisp-indent-function 0) |
| 54c014f0 | 768 | (put 'with-current-buffer 'lisp-indent-function 1) |
| 488a0b05 | 769 | (put 'combine-after-change-calls 'lisp-indent-function 0) |
| 38f16fe1 | 770 | (put 'with-output-to-string 'lisp-indent-function 0) |
| 08adb099 | 771 | (put 'with-temp-file 'lisp-indent-function 1) |
| e0119683 | 772 | (put 'with-temp-buffer 'lisp-indent-function 0) |
| bacd83a7 | 773 | (put 'with-temp-message 'lisp-indent-function 1) |
| 83c8f461 | 774 | (put 'with-syntax-table 'lisp-indent-function 1) |
| a90256cc BP |
775 | (put 'let 'lisp-indent-function 1) |
| 776 | (put 'let* 'lisp-indent-function 1) | |
| 777 | (put 'while 'lisp-indent-function 1) | |
| 778 | (put 'if 'lisp-indent-function 2) | |
| 779 | (put 'catch 'lisp-indent-function 1) | |
| 780 | (put 'condition-case 'lisp-indent-function 2) | |
| 781 | (put 'unwind-protect 'lisp-indent-function 1) | |
| 782 | (put 'with-output-to-temp-buffer 'lisp-indent-function 1) | |
| b6b4c8bd | 783 | (put 'eval-after-load 'lisp-indent-function 1) |
| 05c71036 DL |
784 | (put 'dolist 'lisp-indent-function 1) |
| 785 | (put 'dotimes 'lisp-indent-function 1) | |
| 786 | (put 'when 'lisp-indent-function 1) | |
| 787 | (put 'unless 'lisp-indent-function 1) | |
| a90256cc BP |
788 | |
| 789 | (defun indent-sexp (&optional endpos) | |
| 790 | "Indent each line of the list starting just after point. | |
| 791 | If optional arg ENDPOS is given, indent each line, stopping when | |
| 792 | ENDPOS is encountered." | |
| 793 | (interactive) | |
| daa37602 JB |
794 | (let ((indent-stack (list nil)) |
| 795 | (next-depth 0) | |
| 33f268ec RS |
796 | ;; If ENDPOS is non-nil, use nil as STARTING-POINT |
| 797 | ;; so that calculate-lisp-indent will find the beginning of | |
| 798 | ;; the defun we are in. | |
| 799 | ;; If ENDPOS is nil, it is safe not to scan before point | |
| 800 | ;; since every line we indent is more deeply nested than point is. | |
| 801 | (starting-point (if endpos nil (point))) | |
| daa37602 JB |
802 | (last-point (point)) |
| 803 | last-depth bol outer-loop-done inner-loop-done state this-indent) | |
| 33f268ec RS |
804 | (or endpos |
| 805 | ;; Get error now if we don't have a complete sexp after point. | |
| 806 | (save-excursion (forward-sexp 1))) | |
| a90256cc BP |
807 | (save-excursion |
| 808 | (setq outer-loop-done nil) | |
| 809 | (while (if endpos (< (point) endpos) | |
| 810 | (not outer-loop-done)) | |
| 811 | (setq last-depth next-depth | |
| 812 | inner-loop-done nil) | |
| 813 | ;; Parse this line so we can learn the state | |
| 814 | ;; to indent the next line. | |
| 815 | ;; This inner loop goes through only once | |
| 816 | ;; unless a line ends inside a string. | |
| 817 | (while (and (not inner-loop-done) | |
| 818 | (not (setq outer-loop-done (eobp)))) | |
| 819 | (setq state (parse-partial-sexp (point) (progn (end-of-line) (point)) | |
| 820 | nil nil state)) | |
| 821 | (setq next-depth (car state)) | |
| 822 | ;; If the line contains a comment other than the sort | |
| 823 | ;; that is indented like code, | |
| 824 | ;; indent it now with indent-for-comment. | |
| 825 | ;; Comments indented like code are right already. | |
| 826 | ;; In any case clear the in-comment flag in the state | |
| 827 | ;; because parse-partial-sexp never sees the newlines. | |
| 828 | (if (car (nthcdr 4 state)) | |
| 829 | (progn (indent-for-comment) | |
| 830 | (end-of-line) | |
| 831 | (setcar (nthcdr 4 state) nil))) | |
| 832 | ;; If this line ends inside a string, | |
| 833 | ;; go straight to next line, remaining within the inner loop, | |
| 834 | ;; and turn off the \-flag. | |
| 835 | (if (car (nthcdr 3 state)) | |
| 836 | (progn | |
| 837 | (forward-line 1) | |
| 838 | (setcar (nthcdr 5 state) nil)) | |
| 839 | (setq inner-loop-done t))) | |
| 840 | (and endpos | |
| daa37602 JB |
841 | (<= next-depth 0) |
| 842 | (progn | |
| 843 | (setq indent-stack (append indent-stack | |
| 844 | (make-list (- next-depth) nil)) | |
| 845 | last-depth (- last-depth next-depth) | |
| 846 | next-depth 0))) | |
| 33f268ec | 847 | (or outer-loop-done endpos |
| a90256cc BP |
848 | (setq outer-loop-done (<= next-depth 0))) |
| 849 | (if outer-loop-done | |
| 1f5038b5 | 850 | (forward-line 1) |
| a90256cc BP |
851 | (while (> last-depth next-depth) |
| 852 | (setq indent-stack (cdr indent-stack) | |
| 853 | last-depth (1- last-depth))) | |
| 854 | (while (< last-depth next-depth) | |
| 855 | (setq indent-stack (cons nil indent-stack) | |
| 856 | last-depth (1+ last-depth))) | |
| 857 | ;; Now go to the next line and indent it according | |
| 858 | ;; to what we learned from parsing the previous one. | |
| 859 | (forward-line 1) | |
| 860 | (setq bol (point)) | |
| 861 | (skip-chars-forward " \t") | |
| 862 | ;; But not if the line is blank, or just a comment | |
| 863 | ;; (except for double-semi comments; indent them as usual). | |
| 864 | (if (or (eobp) (looking-at "\\s<\\|\n")) | |
| 865 | nil | |
| 866 | (if (and (car indent-stack) | |
| 867 | (>= (car indent-stack) 0)) | |
| 868 | (setq this-indent (car indent-stack)) | |
| 869 | (let ((val (calculate-lisp-indent | |
| 870 | (if (car indent-stack) (- (car indent-stack)) | |
| daa37602 | 871 | starting-point)))) |
| 531cbff1 RS |
872 | (if (null val) |
| 873 | (setq this-indent val) | |
| 874 | (if (integerp val) | |
| 875 | (setcar indent-stack | |
| 876 | (setq this-indent val)) | |
| 877 | (setcar indent-stack (- (car (cdr val)))) | |
| 878 | (setq this-indent (car val)))))) | |
| 879 | (if (and this-indent (/= (current-column) this-indent)) | |
| a90256cc BP |
880 | (progn (delete-region bol (point)) |
| 881 | (indent-to this-indent))))) | |
| 882 | (or outer-loop-done | |
| 883 | (setq outer-loop-done (= (point) last-point)) | |
| 884 | (setq last-point (point))))))) | |
| 885 | ||
| a90256cc | 886 | (defun lisp-indent-region (start end) |
| 535eadac | 887 | "Indent every line whose first char is between START and END inclusive." |
| a90256cc | 888 | (save-excursion |
| a90256cc | 889 | (let ((endmark (copy-marker end))) |
| 33f268ec RS |
890 | (goto-char start) |
| 891 | (and (bolp) (not (eolp)) | |
| 892 | (lisp-indent-line)) | |
| a90256cc BP |
893 | (indent-sexp endmark) |
| 894 | (set-marker endmark nil)))) | |
| 895 | \f | |
| 6338c7ba JB |
896 | ;;;; Lisp paragraph filling commands. |
| 897 | ||
| 898 | (defun lisp-fill-paragraph (&optional justify) | |
| 899 | "Like \\[fill-paragraph], but handle Emacs Lisp comments. | |
| 900 | If any of the current line is a comment, fill the comment or the | |
| 901 | paragraph of it that point is in, preserving the comment's indentation | |
| 902 | and initial semicolons." | |
| 903 | (interactive "P") | |
| 904 | (let ( | |
| 905 | ;; Non-nil if the current line contains a comment. | |
| 906 | has-comment | |
| 907 | ||
| 4d2790ad RS |
908 | ;; Non-nil if the current line contains code and a comment. |
| 909 | has-code-and-comment | |
| 910 | ||
| 6338c7ba JB |
911 | ;; If has-comment, the appropriate fill-prefix for the comment. |
| 912 | comment-fill-prefix | |
| 913 | ) | |
| 914 | ||
| 915 | ;; Figure out what kind of comment we are looking at. | |
| 916 | (save-excursion | |
| 917 | (beginning-of-line) | |
| 918 | (cond | |
| 919 | ||
| 920 | ;; A line with nothing but a comment on it? | |
| 921 | ((looking-at "[ \t]*;[; \t]*") | |
| 922 | (setq has-comment t | |
| 923 | comment-fill-prefix (buffer-substring (match-beginning 0) | |
| 924 | (match-end 0)))) | |
| 925 | ||
| 926 | ;; A line with some code, followed by a comment? Remember that the | |
| 927 | ;; semi which starts the comment shouldn't be part of a string or | |
| 928 | ;; character. | |
| 93353fea KH |
929 | ((condition-case nil |
| 930 | (save-restriction | |
| 931 | (narrow-to-region (point-min) | |
| 932 | (save-excursion (end-of-line) (point))) | |
| 933 | (while (not (looking-at ";\\|$")) | |
| 934 | (skip-chars-forward "^;\n\"\\\\?") | |
| 935 | (cond | |
| 936 | ((eq (char-after (point)) ?\\) (forward-char 2)) | |
| 937 | ((memq (char-after (point)) '(?\" ??)) (forward-sexp 1)))) | |
| 938 | (looking-at ";+[\t ]*")) | |
| 939 | (error nil)) | |
| 4d2790ad | 940 | (setq has-comment t has-code-and-comment t) |
| 6338c7ba | 941 | (setq comment-fill-prefix |
| 93353fea KH |
942 | (concat (make-string (/ (current-column) 8) ?\t) |
| 943 | (make-string (% (current-column) 8) ?\ ) | |
| 6338c7ba JB |
944 | (buffer-substring (match-beginning 0) (match-end 0))))))) |
| 945 | ||
| 946 | (if (not has-comment) | |
| fe3188ec DL |
947 | ;; `paragraph-start' is set here (not in the buffer-local |
| 948 | ;; variable so that `forward-paragraph' et al work as | |
| 949 | ;; expected) so that filling (doc) strings works sensibly. | |
| 950 | ;; Adding the opening paren to avoid the following sexp being | |
| 951 | ;; filled means that sexps generally aren't filled as normal | |
| 952 | ;; text, which is probably sensible. The `;' and `:' stop the | |
| 953 | ;; filled para at following comment lines and keywords | |
| 954 | ;; (typically in `defcustom'). | |
| 955 | (let ((paragraph-start (concat paragraph-start | |
| 956 | "\\|\\s-*[\(;:\"]"))) | |
| 957 | (fill-paragraph justify)) | |
| 6338c7ba JB |
958 | |
| 959 | ;; Narrow to include only the comment, and then fill the region. | |
| 4c06fbee KH |
960 | (save-excursion |
| 961 | (save-restriction | |
| 962 | (beginning-of-line) | |
| 963 | (narrow-to-region | |
| 964 | ;; Find the first line we should include in the region to fill. | |
| 965 | (save-excursion | |
| 966 | (while (and (zerop (forward-line -1)) | |
| 6338c7ba | 967 | (looking-at "^[ \t]*;"))) |
| 4c06fbee KH |
968 | ;; We may have gone too far. Go forward again. |
| 969 | (or (looking-at ".*;") | |
| 970 | (forward-line 1)) | |
| 971 | (point)) | |
| 972 | ;; Find the beginning of the first line past the region to fill. | |
| 973 | (save-excursion | |
| 974 | (while (progn (forward-line 1) | |
| 975 | (looking-at "^[ \t]*;"))) | |
| 976 | (point))) | |
| 977 | ||
| 978 | ;; Lines with only semicolons on them can be paragraph boundaries. | |
| 979 | (let* ((paragraph-start (concat paragraph-start "\\|[ \t;]*$")) | |
| 980 | (paragraph-separate (concat paragraph-start "\\|[ \t;]*$")) | |
| 981 | (paragraph-ignore-fill-prefix nil) | |
| 982 | (fill-prefix comment-fill-prefix) | |
| 4d2790ad RS |
983 | (after-line (if has-code-and-comment |
| 984 | (save-excursion | |
| 985 | (forward-line 1) (point)))) | |
| 4c06fbee KH |
986 | (end (progn |
| 987 | (forward-paragraph) | |
| 988 | (or (bolp) (newline 1)) | |
| 989 | (point))) | |
| 4d2790ad RS |
990 | ;; If this comment starts on a line with code, |
| 991 | ;; include that like in the filling. | |
| 992 | (beg (progn (backward-paragraph) | |
| 993 | (if (eq (point) after-line) | |
| 994 | (forward-line -1)) | |
| 995 | (point)))) | |
| 4c06fbee KH |
996 | (fill-region-as-paragraph beg end |
| 997 | justify nil | |
| 998 | (save-excursion | |
| 999 | (goto-char beg) | |
| 1000 | (if (looking-at fill-prefix) | |
| 1001 | nil | |
| 1002 | (re-search-forward comment-start-skip) | |
| 1003 | (point)))))))) | |
| 2b4483bb | 1004 | t)) |
| 6338c7ba | 1005 | \f |
| a90256cc BP |
1006 | (defun indent-code-rigidly (start end arg &optional nochange-regexp) |
| 1007 | "Indent all lines of code, starting in the region, sideways by ARG columns. | |
| 1008 | Does not affect lines starting inside comments or strings, assuming that | |
| 1009 | the start of the region is not inside them. | |
| 1010 | ||
| 1011 | Called from a program, takes args START, END, COLUMNS and NOCHANGE-REGEXP. | |
| 1012 | The last is a regexp which, if matched at the beginning of a line, | |
| 1013 | means don't indent that line." | |
| 1014 | (interactive "r\np") | |
| 1015 | (let (state) | |
| 1016 | (save-excursion | |
| 1017 | (goto-char end) | |
| 1018 | (setq end (point-marker)) | |
| 1019 | (goto-char start) | |
| 1020 | (or (bolp) | |
| 1021 | (setq state (parse-partial-sexp (point) | |
| 1022 | (progn | |
| 1023 | (forward-line 1) (point)) | |
| 1024 | nil nil state))) | |
| 1025 | (while (< (point) end) | |
| 1026 | (or (car (nthcdr 3 state)) | |
| 1027 | (and nochange-regexp | |
| 1028 | (looking-at nochange-regexp)) | |
| 1029 | ;; If line does not start in string, indent it | |
| 1030 | (let ((indent (current-indentation))) | |
| 1031 | (delete-region (point) (progn (skip-chars-forward " \t") (point))) | |
| 1032 | (or (eolp) | |
| 1033 | (indent-to (max 0 (+ indent arg)) 0)))) | |
| 1034 | (setq state (parse-partial-sexp (point) | |
| 1035 | (progn | |
| 1036 | (forward-line 1) (point)) | |
| 1037 | nil nil state)))))) | |
| 49116ac0 JB |
1038 | |
| 1039 | (provide 'lisp-mode) | |
| 1040 | ||
| 6594deb0 | 1041 | ;;; lisp-mode.el ends here |