HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| d6a3febd MR |
1 | ;;; lisp-mode.el --- Lisp mode, and its idiosyncratic commands |
| 2 | ||
| acaf905b | 3 | ;; Copyright (C) 1985-1986, 1999-2012 Free Software Foundation, Inc. |
| d6a3febd MR |
4 | |
| 5 | ;; Maintainer: FSF | |
| 6 | ;; Keywords: lisp, languages | |
| bd78fa1d | 7 | ;; Package: emacs |
| d6a3febd MR |
8 | |
| 9 | ;; This file is part of GNU Emacs. | |
| 10 | ||
| 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 12 | ;; it under the terms of the GNU General Public License as published by | |
| 13 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 14 | ;; (at your option) any later version. | |
| 15 | ||
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | ;; GNU General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
| 23 | ||
| 24 | ;;; Commentary: | |
| 25 | ||
| 26 | ;; The base major mode for editing Lisp code (used also for Emacs Lisp). | |
| 27 | ;; This mode is documented in the Emacs manual. | |
| 28 | ||
| 29 | ;;; Code: | |
| 30 | ||
| 31 | (defvar font-lock-comment-face) | |
| 32 | (defvar font-lock-doc-face) | |
| 33 | (defvar font-lock-keywords-case-fold-search) | |
| 34 | (defvar font-lock-string-face) | |
| 35 | ||
| 36 | (defvar lisp-mode-abbrev-table nil) | |
| db174434 CY |
37 | (define-abbrev-table 'lisp-mode-abbrev-table () |
| 38 | "Abbrev table for Lisp mode.") | |
| d6a3febd | 39 | |
| db174434 CY |
40 | (defvar emacs-lisp-mode-abbrev-table nil) |
| 41 | (define-abbrev-table 'emacs-lisp-mode-abbrev-table () | |
| 42 | "Abbrev table for Emacs Lisp mode. | |
| 43 | It has `lisp-mode-abbrev-table' as its parent." | |
| 44 | :parents (list lisp-mode-abbrev-table)) | |
| d6a3febd MR |
45 | |
| 46 | (defvar emacs-lisp-mode-syntax-table | |
| da68c4c8 DD |
47 | (let ((table (make-syntax-table)) |
| 48 | (i 0)) | |
| 49 | (while (< i ?0) | |
| 50 | (modify-syntax-entry i "_ " table) | |
| 51 | (setq i (1+ i))) | |
| 52 | (setq i (1+ ?9)) | |
| 53 | (while (< i ?A) | |
| 54 | (modify-syntax-entry i "_ " table) | |
| 55 | (setq i (1+ i))) | |
| 56 | (setq i (1+ ?Z)) | |
| 57 | (while (< i ?a) | |
| 58 | (modify-syntax-entry i "_ " table) | |
| 59 | (setq i (1+ i))) | |
| 60 | (setq i (1+ ?z)) | |
| 61 | (while (< i 128) | |
| 62 | (modify-syntax-entry i "_ " table) | |
| 63 | (setq i (1+ i))) | |
| 64 | (modify-syntax-entry ?\s " " table) | |
| 65 | ;; Non-break space acts as whitespace. | |
| 66 | (modify-syntax-entry ?\x8a0 " " table) | |
| 67 | (modify-syntax-entry ?\t " " table) | |
| 68 | (modify-syntax-entry ?\f " " table) | |
| 69 | (modify-syntax-entry ?\n "> " table) | |
| 70 | ;; This is probably obsolete since nowadays such features use overlays. | |
| 71 | ;; ;; Give CR the same syntax as newline, for selective-display. | |
| 72 | ;; (modify-syntax-entry ?\^m "> " table) | |
| 73 | (modify-syntax-entry ?\; "< " table) | |
| 74 | (modify-syntax-entry ?` "' " table) | |
| 75 | (modify-syntax-entry ?' "' " table) | |
| 76 | (modify-syntax-entry ?, "' " table) | |
| 77 | (modify-syntax-entry ?@ "' " table) | |
| 78 | ;; Used to be singlequote; changed for flonums. | |
| 79 | (modify-syntax-entry ?. "_ " table) | |
| 80 | (modify-syntax-entry ?# "' " table) | |
| 81 | (modify-syntax-entry ?\" "\" " table) | |
| 82 | (modify-syntax-entry ?\\ "\\ " table) | |
| 83 | (modify-syntax-entry ?\( "() " table) | |
| 84 | (modify-syntax-entry ?\) ")( " table) | |
| 85 | (modify-syntax-entry ?\[ "(] " table) | |
| 86 | (modify-syntax-entry ?\] ")[ " table) | |
| e4a09a11 GM |
87 | table) |
| 88 | "Syntax table used in `emacs-lisp-mode'.") | |
| d6a3febd MR |
89 | |
| 90 | (defvar lisp-mode-syntax-table | |
| 91 | (let ((table (copy-syntax-table emacs-lisp-mode-syntax-table))) | |
| 92 | (modify-syntax-entry ?\[ "_ " table) | |
| 93 | (modify-syntax-entry ?\] "_ " table) | |
| c5683ceb | 94 | (modify-syntax-entry ?# "' 14" table) |
| d6a3febd | 95 | (modify-syntax-entry ?| "\" 23bn" table) |
| a8106aec GM |
96 | table) |
| 97 | "Syntax table used in `lisp-mode'.") | |
| d6a3febd MR |
98 | |
| 99 | (defvar lisp-imenu-generic-expression | |
| 100 | (list | |
| 101 | (list nil | |
| 102 | (purecopy (concat "^\\s-*(" | |
| 103 | (eval-when-compile | |
| 104 | (regexp-opt | |
| 105 | '("defun" "defun*" "defsubst" "defmacro" | |
| 106 | "defadvice" "define-skeleton" | |
| 107 | "define-minor-mode" "define-global-minor-mode" | |
| 108 | "define-globalized-minor-mode" | |
| 109 | "define-derived-mode" "define-generic-mode" | |
| 110 | "define-compiler-macro" "define-modify-macro" | |
| 111 | "defsetf" "define-setf-expander" | |
| 112 | "define-method-combination" | |
| 113 | "defgeneric" "defmethod") t)) | |
| 114 | "\\s-+\\(\\(\\sw\\|\\s_\\)+\\)")) | |
| 115 | 2) | |
| 116 | (list (purecopy "Variables") | |
| 117 | (purecopy (concat "^\\s-*(" | |
| 118 | (eval-when-compile | |
| 119 | (regexp-opt | |
| b7ccbdc2 | 120 | '("defconst" "defconstant" "defcustom" |
| d6a3febd MR |
121 | "defparameter" "define-symbol-macro") t)) |
| 122 | "\\s-+\\(\\(\\sw\\|\\s_\\)+\\)")) | |
| 123 | 2) | |
| b7ccbdc2 CY |
124 | ;; For `defvar', we ignore (defvar FOO) constructs. |
| 125 | (list (purecopy "Variables") | |
| 126 | (purecopy (concat "^\\s-*(defvar\\s-+\\(\\(\\sw\\|\\s_\\)+\\)" | |
| 127 | "[[:space:]\n]+[^)]")) | |
| 128 | 1) | |
| d6a3febd MR |
129 | (list (purecopy "Types") |
| 130 | (purecopy (concat "^\\s-*(" | |
| 131 | (eval-when-compile | |
| 132 | (regexp-opt | |
| 133 | '("defgroup" "deftheme" "deftype" "defstruct" | |
| 134 | "defclass" "define-condition" "define-widget" | |
| 135 | "defface" "defpackage") t)) | |
| 136 | "\\s-+'?\\(\\(\\sw\\|\\s_\\)+\\)")) | |
| 137 | 2)) | |
| 138 | ||
| 139 | "Imenu generic expression for Lisp mode. See `imenu-generic-expression'.") | |
| 140 | ||
| 141 | ;; This was originally in autoload.el and is still used there. | |
| 142 | (put 'autoload 'doc-string-elt 3) | |
| 98449af8 | 143 | (put 'defmethod 'doc-string-elt 3) |
| d6a3febd | 144 | (put 'defvar 'doc-string-elt 3) |
| d6a3febd | 145 | (put 'defconst 'doc-string-elt 3) |
| d6a3febd MR |
146 | (put 'defalias 'doc-string-elt 3) |
| 147 | (put 'defvaralias 'doc-string-elt 3) | |
| 148 | (put 'define-category 'doc-string-elt 2) | |
| 149 | ||
| 150 | (defvar lisp-doc-string-elt-property 'doc-string-elt | |
| 151 | "The symbol property that holds the docstring position info.") | |
| 152 | ||
| 153 | (defun lisp-font-lock-syntactic-face-function (state) | |
| 154 | (if (nth 3 state) | |
| 155 | ;; This might be a (doc)string or a |...| symbol. | |
| 156 | (let ((startpos (nth 8 state))) | |
| 157 | (if (eq (char-after startpos) ?|) | |
| 158 | ;; This is not a string, but a |...| symbol. | |
| 159 | nil | |
| 160 | (let* ((listbeg (nth 1 state)) | |
| 161 | (firstsym (and listbeg | |
| 162 | (save-excursion | |
| 163 | (goto-char listbeg) | |
| 164 | (and (looking-at "([ \t\n]*\\(\\(\\sw\\|\\s_\\)+\\)") | |
| 165 | (match-string 1))))) | |
| 7abaf5cc SM |
166 | (docelt (and firstsym |
| 167 | (function-get (intern-soft firstsym) | |
| d6a3febd MR |
168 | lisp-doc-string-elt-property)))) |
| 169 | (if (and docelt | |
| 170 | ;; It's a string in a form that can have a docstring. | |
| 171 | ;; Check whether it's in docstring position. | |
| 172 | (save-excursion | |
| 173 | (when (functionp docelt) | |
| 174 | (goto-char (match-end 1)) | |
| 175 | (setq docelt (funcall docelt))) | |
| 176 | (goto-char listbeg) | |
| 177 | (forward-char 1) | |
| 178 | (condition-case nil | |
| 179 | (while (and (> docelt 0) (< (point) startpos) | |
| 180 | (progn (forward-sexp 1) t)) | |
| 181 | (setq docelt (1- docelt))) | |
| 182 | (error nil)) | |
| 183 | (and (zerop docelt) (<= (point) startpos) | |
| 184 | (progn (forward-comment (point-max)) t) | |
| 185 | (= (point) (nth 8 state))))) | |
| 186 | font-lock-doc-face | |
| 187 | font-lock-string-face)))) | |
| 188 | font-lock-comment-face)) | |
| 189 | ||
| 94686171 DN |
190 | (defun lisp-mode-variables (&optional lisp-syntax keywords-case-insensitive) |
| 191 | "Common initialization routine for lisp modes. | |
| 192 | The LISP-SYNTAX argument is used by code in inf-lisp.el and is | |
| 5249a62d MR |
193 | \(uselessly) passed from pp.el, chistory.el, gnus-kill.el and |
| 194 | score-mode.el. KEYWORDS-CASE-INSENSITIVE non-nil means that for | |
| 195 | font-lock keywords will not be case sensitive." | |
| d6a3febd MR |
196 | (when lisp-syntax |
| 197 | (set-syntax-table lisp-mode-syntax-table)) | |
| 92eadba5 CY |
198 | (setq-local paragraph-ignore-fill-prefix t) |
| 199 | (setq-local fill-paragraph-function 'lisp-fill-paragraph) | |
| d6a3febd MR |
200 | ;; Adaptive fill mode gets the fill wrong for a one-line paragraph made of |
| 201 | ;; a single docstring. Let's fix it here. | |
| 92eadba5 CY |
202 | (setq-local adaptive-fill-function |
| 203 | (lambda () (if (looking-at "\\s-+\"[^\n\"]+\"\\s-*$") ""))) | |
| d6a3febd MR |
204 | ;; Adaptive fill mode gets in the way of auto-fill, |
| 205 | ;; and should make no difference for explicit fill | |
| 206 | ;; because lisp-fill-paragraph should do the job. | |
| 207 | ;; I believe that newcomment's auto-fill code properly deals with it -stef | |
| 208 | ;;(set (make-local-variable 'adaptive-fill-mode) nil) | |
| 92eadba5 CY |
209 | (setq-local indent-line-function 'lisp-indent-line) |
| 210 | (setq-local outline-regexp ";;;\\(;* [^ \t\n]\\|###autoload\\)\\|(") | |
| 211 | (setq-local outline-level 'lisp-outline-level) | |
| ba03d0d9 | 212 | (setq-local add-log-current-defun-function #'lisp-current-defun-name) |
| 92eadba5 | 213 | (setq-local comment-start ";") |
| d6a3febd MR |
214 | ;; Look within the line for a ; following an even number of backslashes |
| 215 | ;; after either a non-backslash or the line beginning. | |
| 92eadba5 | 216 | (setq-local comment-start-skip "\\(\\(^\\|[^\\\\\n]\\)\\(\\\\\\\\\\)*\\);+ *") |
| d6a3febd | 217 | ;; Font lock mode uses this only when it KNOWS a comment is starting. |
| 92eadba5 CY |
218 | (setq-local font-lock-comment-start-skip ";+ *") |
| 219 | (setq-local comment-add 1) ;default to `;;' in comment-region | |
| 220 | (setq-local comment-column 40) | |
| d6a3febd | 221 | ;; Don't get confused by `;' in doc strings when paragraph-filling. |
| 92eadba5 CY |
222 | (setq-local comment-use-global-state t) |
| 223 | (setq-local imenu-generic-expression lisp-imenu-generic-expression) | |
| 224 | (setq-local multibyte-syntax-as-symbol t) | |
| 225 | (setq-local syntax-begin-function 'beginning-of-defun) | |
| d6a3febd | 226 | (setq font-lock-defaults |
| 94686171 | 227 | `((lisp-font-lock-keywords |
| d6a3febd | 228 | lisp-font-lock-keywords-1 lisp-font-lock-keywords-2) |
| 94686171 | 229 | nil ,keywords-case-insensitive (("+-*/.<>=!?$%_&~^:@" . "w")) nil |
| d6a3febd MR |
230 | (font-lock-mark-block-function . mark-defun) |
| 231 | (font-lock-syntactic-face-function | |
| 232 | . lisp-font-lock-syntactic-face-function)))) | |
| 233 | ||
| 234 | (defun lisp-outline-level () | |
| 235 | "Lisp mode `outline-level' function." | |
| 236 | (let ((len (- (match-end 0) (match-beginning 0)))) | |
| 237 | (if (looking-at "(\\|;;;###autoload") | |
| 238 | 1000 | |
| 239 | len))) | |
| 240 | ||
| ba03d0d9 CY |
241 | (defun lisp-current-defun-name () |
| 242 | "Return the name of the defun at point, or nil." | |
| 243 | (let ((location (point))) | |
| 244 | ;; If we are now precisely at the beginning of a defun, make sure | |
| 245 | ;; beginning-of-defun finds that one rather than the previous one. | |
| 246 | (or (eobp) (forward-char 1)) | |
| 247 | (beginning-of-defun) | |
| 248 | ;; Make sure we are really inside the defun found, not after it. | |
| 249 | (when (and (looking-at "\\s(") | |
| 250 | (progn (end-of-defun) | |
| 251 | (< location (point))) | |
| 252 | (progn (forward-sexp -1) | |
| 253 | (>= location (point)))) | |
| 254 | (if (looking-at "\\s(") | |
| 255 | (forward-char 1)) | |
| 256 | ;; Skip the defining construct name, typically "defun" or | |
| 257 | ;; "defvar". | |
| 258 | (forward-sexp 1) | |
| 259 | ;; The second element is usually a symbol being defined. If it | |
| 260 | ;; is not, use the first symbol in it. | |
| 261 | (skip-chars-forward " \t\n'(") | |
| 262 | (buffer-substring-no-properties (point) | |
| 263 | (progn (forward-sexp 1) | |
| 264 | (point)))))) | |
| 265 | ||
| d6a3febd MR |
266 | (defvar lisp-mode-shared-map |
| 267 | (let ((map (make-sparse-keymap))) | |
| 268 | (define-key map "\e\C-q" 'indent-sexp) | |
| 269 | (define-key map "\177" 'backward-delete-char-untabify) | |
| 270 | ;; This gets in the way when viewing a Lisp file in view-mode. As | |
| 271 | ;; long as [backspace] is mapped into DEL via the | |
| 272 | ;; function-key-map, this should remain disabled!! | |
| 273 | ;;;(define-key map [backspace] 'backward-delete-char-untabify) | |
| 274 | map) | |
| 275 | "Keymap for commands shared by all sorts of Lisp modes.") | |
| 276 | ||
| 277 | (defvar emacs-lisp-mode-map | |
| 278 | (let ((map (make-sparse-keymap "Emacs-Lisp")) | |
| 279 | (menu-map (make-sparse-keymap "Emacs-Lisp")) | |
| a707eb05 | 280 | (lint-map (make-sparse-keymap)) |
| d6a3febd MR |
281 | (prof-map (make-sparse-keymap)) |
| 282 | (tracing-map (make-sparse-keymap))) | |
| 283 | (set-keymap-parent map lisp-mode-shared-map) | |
| 51ef56c4 | 284 | (define-key map "\e\t" 'completion-at-point) |
| d6a3febd MR |
285 | (define-key map "\e\C-x" 'eval-defun) |
| 286 | (define-key map "\e\C-q" 'indent-pp-sexp) | |
| 1ec4b7b2 SM |
287 | (bindings--define-key map [menu-bar emacs-lisp] |
| 288 | (cons "Emacs-Lisp" menu-map)) | |
| 289 | (bindings--define-key menu-map [eldoc] | |
| 290 | '(menu-item "Auto-Display Documentation Strings" eldoc-mode | |
| d6a3febd | 291 | :button (:toggle . (bound-and-true-p eldoc-mode)) |
| 1ec4b7b2 SM |
292 | :help "Display the documentation string for the item under cursor")) |
| 293 | (bindings--define-key menu-map [checkdoc] | |
| 294 | '(menu-item "Check Documentation Strings" checkdoc | |
| 295 | :help "Check documentation strings for style requirements")) | |
| 296 | (bindings--define-key menu-map [re-builder] | |
| 297 | '(menu-item "Construct Regexp" re-builder | |
| 298 | :help "Construct a regexp interactively")) | |
| 299 | (bindings--define-key menu-map [tracing] (cons "Tracing" tracing-map)) | |
| 300 | (bindings--define-key tracing-map [tr-a] | |
| 301 | '(menu-item "Untrace All" untrace-all | |
| 302 | :help "Untrace all currently traced functions")) | |
| 303 | (bindings--define-key tracing-map [tr-uf] | |
| 304 | '(menu-item "Untrace Function..." untrace-function | |
| 305 | :help "Untrace function, and possibly activate all remaining advice")) | |
| 306 | (bindings--define-key tracing-map [tr-sep] menu-bar-separator) | |
| 307 | (bindings--define-key tracing-map [tr-q] | |
| 308 | '(menu-item "Trace Function Quietly..." trace-function-background | |
| 309 | :help "Trace the function with trace output going quietly to a buffer")) | |
| 310 | (bindings--define-key tracing-map [tr-f] | |
| 311 | '(menu-item "Trace Function..." trace-function | |
| 312 | :help "Trace the function given as an argument")) | |
| 313 | (bindings--define-key menu-map [profiling] (cons "Profiling" prof-map)) | |
| 314 | (bindings--define-key prof-map [prof-restall] | |
| 315 | '(menu-item "Remove Instrumentation for All Functions" elp-restore-all | |
| 316 | :help "Restore the original definitions of all functions being profiled")) | |
| 317 | (bindings--define-key prof-map [prof-restfunc] | |
| 318 | '(menu-item "Remove Instrumentation for Function..." elp-restore-function | |
| 319 | :help "Restore an instrumented function to its original definition")) | |
| 320 | ||
| 321 | (bindings--define-key prof-map [sep-rem] menu-bar-separator) | |
| 322 | (bindings--define-key prof-map [prof-resall] | |
| 323 | '(menu-item "Reset Counters for All Functions" elp-reset-all | |
| 324 | :help "Reset the profiling information for all functions being profiled")) | |
| 325 | (bindings--define-key prof-map [prof-resfunc] | |
| 326 | '(menu-item "Reset Counters for Function..." elp-reset-function | |
| 327 | :help "Reset the profiling information for a function")) | |
| 328 | (bindings--define-key prof-map [prof-res] | |
| 329 | '(menu-item "Show Profiling Results" elp-results | |
| 330 | :help "Display current profiling results")) | |
| 331 | (bindings--define-key prof-map [prof-pack] | |
| 332 | '(menu-item "Instrument Package..." elp-instrument-package | |
| 333 | :help "Instrument for profiling all function that start with a prefix")) | |
| 334 | (bindings--define-key prof-map [prof-func] | |
| 335 | '(menu-item "Instrument Function..." elp-instrument-function | |
| 336 | :help "Instrument a function for profiling")) | |
| 337 | (bindings--define-key menu-map [lint] (cons "Linting" lint-map)) | |
| 338 | (bindings--define-key lint-map [lint-di] | |
| 339 | '(menu-item "Lint Directory..." elint-directory | |
| 340 | :help "Lint a directory")) | |
| 341 | (bindings--define-key lint-map [lint-f] | |
| 342 | '(menu-item "Lint File..." elint-file | |
| 343 | :help "Lint a file")) | |
| 344 | (bindings--define-key lint-map [lint-b] | |
| 345 | '(menu-item "Lint Buffer" elint-current-buffer | |
| 346 | :help "Lint the current buffer")) | |
| 347 | (bindings--define-key lint-map [lint-d] | |
| 348 | '(menu-item "Lint Defun" elint-defun | |
| 349 | :help "Lint the function at point")) | |
| 350 | (bindings--define-key menu-map [edebug-defun] | |
| 351 | '(menu-item "Instrument Function for Debugging" edebug-defun | |
| 352 | :help "Evaluate the top level form point is in, stepping through with Edebug" | |
| 353 | :keys "C-u C-M-x")) | |
| 354 | (bindings--define-key menu-map [separator-byte] menu-bar-separator) | |
| 355 | (bindings--define-key menu-map [disas] | |
| 356 | '(menu-item "Disassemble Byte Compiled Object..." disassemble | |
| 357 | :help "Print disassembled code for OBJECT in a buffer")) | |
| 358 | (bindings--define-key menu-map [byte-recompile] | |
| 359 | '(menu-item "Byte-recompile Directory..." byte-recompile-directory | |
| 360 | :help "Recompile every `.el' file in DIRECTORY that needs recompilation")) | |
| 361 | (bindings--define-key menu-map [emacs-byte-compile-and-load] | |
| 362 | '(menu-item "Byte-compile and Load" emacs-lisp-byte-compile-and-load | |
| 363 | :help "Byte-compile the current file (if it has changed), then load compiled code")) | |
| 364 | (bindings--define-key menu-map [byte-compile] | |
| 365 | '(menu-item "Byte-compile This File" emacs-lisp-byte-compile | |
| 366 | :help "Byte compile the file containing the current buffer")) | |
| 367 | (bindings--define-key menu-map [separator-eval] menu-bar-separator) | |
| 368 | (bindings--define-key menu-map [ielm] | |
| 369 | '(menu-item "Interactive Expression Evaluation" ielm | |
| 370 | :help "Interactively evaluate Emacs Lisp expressions")) | |
| 371 | (bindings--define-key menu-map [eval-buffer] | |
| 372 | '(menu-item "Evaluate Buffer" eval-buffer | |
| 373 | :help "Execute the current buffer as Lisp code")) | |
| 374 | (bindings--define-key menu-map [eval-region] | |
| 375 | '(menu-item "Evaluate Region" eval-region | |
| 376 | :help "Execute the region as Lisp code" | |
| d6a3febd | 377 | :enable mark-active)) |
| 1ec4b7b2 SM |
378 | (bindings--define-key menu-map [eval-sexp] |
| 379 | '(menu-item "Evaluate Last S-expression" eval-last-sexp | |
| 380 | :help "Evaluate sexp before point; print value in minibuffer")) | |
| 381 | (bindings--define-key menu-map [separator-format] menu-bar-separator) | |
| 382 | (bindings--define-key menu-map [comment-region] | |
| 383 | '(menu-item "Comment Out Region" comment-region | |
| 384 | :help "Comment or uncomment each line in the region" | |
| d6a3febd | 385 | :enable mark-active)) |
| 1ec4b7b2 SM |
386 | (bindings--define-key menu-map [indent-region] |
| 387 | '(menu-item "Indent Region" indent-region | |
| 388 | :help "Indent each nonblank line in the region" | |
| d6a3febd | 389 | :enable mark-active)) |
| 1ec4b7b2 SM |
390 | (bindings--define-key menu-map [indent-line] |
| 391 | '(menu-item "Indent Line" lisp-indent-line)) | |
| d6a3febd MR |
392 | map) |
| 393 | "Keymap for Emacs Lisp mode. | |
| 394 | All commands in `lisp-mode-shared-map' are inherited by this map.") | |
| 395 | ||
| 396 | (defun emacs-lisp-byte-compile () | |
| 397 | "Byte compile the file containing the current buffer." | |
| 398 | (interactive) | |
| 399 | (if buffer-file-name | |
| 400 | (byte-compile-file buffer-file-name) | |
| 401 | (error "The buffer must be saved in a file first"))) | |
| 402 | ||
| 403 | (defun emacs-lisp-byte-compile-and-load () | |
| 404 | "Byte-compile the current file (if it has changed), then load compiled code." | |
| 405 | (interactive) | |
| 406 | (or buffer-file-name | |
| 407 | (error "The buffer must be saved in a file first")) | |
| 408 | (require 'bytecomp) | |
| 409 | ;; Recompile if file or buffer has changed since last compilation. | |
| 410 | (if (and (buffer-modified-p) | |
| 411 | (y-or-n-p (format "Save buffer %s first? " (buffer-name)))) | |
| 412 | (save-buffer)) | |
| 430e7297 | 413 | (byte-recompile-file buffer-file-name nil 0 t)) |
| d6a3febd MR |
414 | |
| 415 | (defcustom emacs-lisp-mode-hook nil | |
| 416 | "Hook run when entering Emacs Lisp mode." | |
| 417 | :options '(turn-on-eldoc-mode imenu-add-menubar-index checkdoc-minor-mode) | |
| 418 | :type 'hook | |
| 419 | :group 'lisp) | |
| 420 | ||
| 421 | (defcustom lisp-mode-hook nil | |
| 422 | "Hook run when entering Lisp mode." | |
| 423 | :options '(imenu-add-menubar-index) | |
| 424 | :type 'hook | |
| 425 | :group 'lisp) | |
| 426 | ||
| 427 | (defcustom lisp-interaction-mode-hook nil | |
| 428 | "Hook run when entering Lisp Interaction mode." | |
| 429 | :options '(turn-on-eldoc-mode) | |
| 430 | :type 'hook | |
| 431 | :group 'lisp) | |
| 432 | ||
| 10dcc561 | 433 | (define-derived-mode emacs-lisp-mode prog-mode "Emacs-Lisp" |
| d6a3febd MR |
434 | "Major mode for editing Lisp code to run in Emacs. |
| 435 | Commands: | |
| 436 | Delete converts tabs to spaces as it moves back. | |
| 437 | Blank lines separate paragraphs. Semicolons start comments. | |
| a3c40f60 | 438 | |
| d6a3febd MR |
439 | \\{emacs-lisp-mode-map} |
| 440 | Entry to this mode calls the value of `emacs-lisp-mode-hook' | |
| 441 | if that value is non-nil." | |
| 51ef56c4 | 442 | :group 'lisp |
| d6a3febd MR |
443 | (lisp-mode-variables) |
| 444 | (setq imenu-case-fold-search nil) | |
| 51ef56c4 SM |
445 | (add-hook 'completion-at-point-functions |
| 446 | 'lisp-completion-at-point nil 'local)) | |
| d6a3febd | 447 | |
| 9b851e25 SM |
448 | ;;; Emacs Lisp Byte-Code mode |
| 449 | ||
| 450 | (eval-and-compile | |
| 451 | (defconst emacs-list-byte-code-comment-re | |
| 452 | (concat "\\(#\\)@\\([0-9]+\\) " | |
| 453 | ;; Make sure it's a docstring and not a lazy-loaded byte-code. | |
| 454 | "\\(?:[^(]\\|([^\"]\\)"))) | |
| 455 | ||
| 456 | (defun emacs-lisp-byte-code-comment (end &optional _point) | |
| 457 | "Try to syntactically mark the #@NNN ....^_ docstrings in byte-code files." | |
| 458 | (let ((ppss (syntax-ppss))) | |
| 459 | (when (and (nth 4 ppss) | |
| 460 | (eq (char-after (nth 8 ppss)) ?#)) | |
| 461 | (let* ((n (save-excursion | |
| 462 | (goto-char (nth 8 ppss)) | |
| 463 | (when (looking-at emacs-list-byte-code-comment-re) | |
| 464 | (string-to-number (match-string 2))))) | |
| 465 | ;; `maxdiff' tries to make sure the loop below terminates. | |
| 466 | (maxdiff n)) | |
| 467 | (when n | |
| 468 | (let* ((bchar (match-end 2)) | |
| 469 | (b (position-bytes bchar))) | |
| 470 | (goto-char (+ b n)) | |
| 471 | (while (let ((diff (- (position-bytes (point)) b n))) | |
| 472 | (unless (zerop diff) | |
| 473 | (when (> diff maxdiff) (setq diff maxdiff)) | |
| 474 | (forward-char (- diff)) | |
| 475 | (setq maxdiff (if (> diff 0) diff | |
| 476 | (max (1- maxdiff) 1))) | |
| 477 | t)))) | |
| 478 | (if (<= (point) end) | |
| 479 | (put-text-property (1- (point)) (point) | |
| 480 | 'syntax-table | |
| 481 | (string-to-syntax "> b")) | |
| 482 | (goto-char end))))))) | |
| 483 | ||
| 484 | (defun emacs-lisp-byte-code-syntax-propertize (start end) | |
| 485 | (emacs-lisp-byte-code-comment end (point)) | |
| 486 | (funcall | |
| 487 | (syntax-propertize-rules | |
| 488 | (emacs-list-byte-code-comment-re | |
| 489 | (1 (prog1 "< b" (emacs-lisp-byte-code-comment end (point)))))) | |
| 490 | start end)) | |
| 491 | ||
| 492 | (add-to-list 'auto-mode-alist '("\\.elc\\'" . emacs-lisp-byte-code-mode)) | |
| 493 | (define-derived-mode emacs-lisp-byte-code-mode emacs-lisp-mode | |
| 494 | "Elisp-Byte-Code" | |
| 495 | "Major mode for *.elc files." | |
| 496 | ;; TODO: Add way to disassemble byte-code under point. | |
| 497 | (setq-local open-paren-in-column-0-is-defun-start nil) | |
| 498 | (setq-local syntax-propertize-function | |
| 499 | #'emacs-lisp-byte-code-syntax-propertize)) | |
| 500 | ||
| 501 | ;;; Generic Lisp mode. | |
| 502 | ||
| d6a3febd MR |
503 | (defvar lisp-mode-map |
| 504 | (let ((map (make-sparse-keymap)) | |
| 505 | (menu-map (make-sparse-keymap "Lisp"))) | |
| 506 | (set-keymap-parent map lisp-mode-shared-map) | |
| 507 | (define-key map "\e\C-x" 'lisp-eval-defun) | |
| 508 | (define-key map "\C-c\C-z" 'run-lisp) | |
| 1ec4b7b2 SM |
509 | (bindings--define-key map [menu-bar lisp] (cons "Lisp" menu-map)) |
| 510 | (bindings--define-key menu-map [run-lisp] | |
| 511 | '(menu-item "Run inferior Lisp" run-lisp | |
| 512 | :help "Run an inferior Lisp process, input and output via buffer `*inferior-lisp*'")) | |
| 513 | (bindings--define-key menu-map [ev-def] | |
| 514 | '(menu-item "Eval defun" lisp-eval-defun | |
| 515 | :help "Send the current defun to the Lisp process made by M-x run-lisp")) | |
| 516 | (bindings--define-key menu-map [ind-sexp] | |
| 517 | '(menu-item "Indent sexp" indent-sexp | |
| 518 | :help "Indent each line of the list starting just after point")) | |
| d6a3febd MR |
519 | map) |
| 520 | "Keymap for ordinary Lisp mode. | |
| 521 | All commands in `lisp-mode-shared-map' are inherited by this map.") | |
| 522 | ||
| 10dcc561 | 523 | (define-derived-mode lisp-mode prog-mode "Lisp" |
| d6a3febd MR |
524 | "Major mode for editing Lisp code for Lisps other than GNU Emacs Lisp. |
| 525 | Commands: | |
| 526 | Delete converts tabs to spaces as it moves back. | |
| 527 | Blank lines separate paragraphs. Semicolons start comments. | |
| a3c40f60 | 528 | |
| d6a3febd MR |
529 | \\{lisp-mode-map} |
| 530 | Note that `run-lisp' may be used either to start an inferior Lisp job | |
| 531 | or to switch back to an existing one. | |
| 532 | ||
| 533 | Entry to this mode calls the value of `lisp-mode-hook' | |
| 534 | if that value is non-nil." | |
| 94686171 | 535 | (lisp-mode-variables nil t) |
| 92eadba5 CY |
536 | (setq-local find-tag-default-function 'lisp-find-tag-default) |
| 537 | (setq-local comment-start-skip | |
| 538 | "\\(\\(^\\|[^\\\\\n]\\)\\(\\\\\\\\\\)*\\)\\(;+\\|#|\\) *") | |
| f3a47002 | 539 | (setq imenu-case-fold-search t)) |
| d6a3febd MR |
540 | |
| 541 | (defun lisp-find-tag-default () | |
| 542 | (let ((default (find-tag-default))) | |
| 543 | (when (stringp default) | |
| 544 | (if (string-match ":+" default) | |
| 545 | (substring default (match-end 0)) | |
| 546 | default)))) | |
| 547 | ||
| 548 | ;; Used in old LispM code. | |
| 549 | (defalias 'common-lisp-mode 'lisp-mode) | |
| 550 | ||
| 551 | ;; This will do unless inf-lisp.el is loaded. | |
| 552 | (defun lisp-eval-defun (&optional and-go) | |
| 553 | "Send the current defun to the Lisp process made by \\[run-lisp]." | |
| 554 | (interactive) | |
| 555 | (error "Process lisp does not exist")) | |
| 556 | ||
| 557 | (defvar lisp-interaction-mode-map | |
| 558 | (let ((map (make-sparse-keymap)) | |
| 559 | (menu-map (make-sparse-keymap "Lisp-Interaction"))) | |
| 560 | (set-keymap-parent map lisp-mode-shared-map) | |
| 561 | (define-key map "\e\C-x" 'eval-defun) | |
| 562 | (define-key map "\e\C-q" 'indent-pp-sexp) | |
| 51ef56c4 | 563 | (define-key map "\e\t" 'completion-at-point) |
| d6a3febd | 564 | (define-key map "\n" 'eval-print-last-sexp) |
| 1ec4b7b2 SM |
565 | (bindings--define-key map [menu-bar lisp-interaction] |
| 566 | (cons "Lisp-Interaction" menu-map)) | |
| 567 | (bindings--define-key menu-map [eval-defun] | |
| 568 | '(menu-item "Evaluate Defun" eval-defun | |
| 569 | :help "Evaluate the top-level form containing point, or after point")) | |
| 570 | (bindings--define-key menu-map [eval-print-last-sexp] | |
| 571 | '(menu-item "Evaluate and Print" eval-print-last-sexp | |
| 572 | :help "Evaluate sexp before point; print value into current buffer")) | |
| 573 | (bindings--define-key menu-map [edebug-defun-lisp-interaction] | |
| 574 | '(menu-item "Instrument Function for Debugging" edebug-defun | |
| 575 | :help "Evaluate the top level form point is in, stepping through with Edebug" | |
| 576 | :keys "C-u C-M-x")) | |
| 577 | (bindings--define-key menu-map [indent-pp-sexp] | |
| 578 | '(menu-item "Indent or Pretty-Print" indent-pp-sexp | |
| 579 | :help "Indent each line of the list starting just after point, or prettyprint it")) | |
| 580 | (bindings--define-key menu-map [complete-symbol] | |
| 581 | '(menu-item "Complete Lisp Symbol" completion-at-point | |
| 582 | :help "Perform completion on Lisp symbol preceding point")) | |
| d6a3febd MR |
583 | map) |
| 584 | "Keymap for Lisp Interaction mode. | |
| 585 | All commands in `lisp-mode-shared-map' are inherited by this map.") | |
| 586 | ||
| d6a3febd MR |
587 | (define-derived-mode lisp-interaction-mode emacs-lisp-mode "Lisp Interaction" |
| 588 | "Major mode for typing and evaluating Lisp forms. | |
| 589 | Like Lisp mode except that \\[eval-print-last-sexp] evals the Lisp expression | |
| 590 | before point, and prints its value into the buffer, advancing point. | |
| 591 | Note that printing is controlled by `eval-expression-print-length' | |
| 592 | and `eval-expression-print-level'. | |
| 593 | ||
| 594 | Commands: | |
| 595 | Delete converts tabs to spaces as it moves back. | |
| 596 | Paragraphs are separated only by blank lines. | |
| 597 | Semicolons start comments. | |
| a3c40f60 | 598 | |
| d6a3febd MR |
599 | \\{lisp-interaction-mode-map} |
| 600 | Entry to this mode calls the value of `lisp-interaction-mode-hook' | |
| db174434 CY |
601 | if that value is non-nil." |
| 602 | :abbrev-table nil) | |
| d6a3febd MR |
603 | |
| 604 | (defun eval-print-last-sexp () | |
| 605 | "Evaluate sexp before point; print value into current buffer. | |
| 606 | ||
| 607 | If `eval-expression-debug-on-error' is non-nil, which is the default, | |
| 608 | this command arranges for all errors to enter the debugger. | |
| 609 | ||
| 610 | Note that printing the result is controlled by the variables | |
| 611 | `eval-expression-print-length' and `eval-expression-print-level', | |
| 612 | which see." | |
| 613 | (interactive) | |
| 614 | (let ((standard-output (current-buffer))) | |
| 615 | (terpri) | |
| 616 | (eval-last-sexp t) | |
| 617 | (terpri))) | |
| 618 | ||
| 619 | ||
| 620 | (defun last-sexp-setup-props (beg end value alt1 alt2) | |
| 621 | "Set up text properties for the output of `eval-last-sexp-1'. | |
| 622 | BEG and END are the start and end of the output in current-buffer. | |
| 623 | VALUE is the Lisp value printed, ALT1 and ALT2 are strings for the | |
| 624 | alternative printed representations that can be displayed." | |
| 625 | (let ((map (make-sparse-keymap))) | |
| 626 | (define-key map "\C-m" 'last-sexp-toggle-display) | |
| 627 | (define-key map [down-mouse-2] 'mouse-set-point) | |
| 628 | (define-key map [mouse-2] 'last-sexp-toggle-display) | |
| 629 | (add-text-properties | |
| 630 | beg end | |
| 631 | `(printed-value (,value ,alt1 ,alt2) | |
| 632 | mouse-face highlight | |
| 633 | keymap ,map | |
| 634 | help-echo "RET, mouse-2: toggle abbreviated display" | |
| 635 | rear-nonsticky (mouse-face keymap help-echo | |
| 636 | printed-value))))) | |
| 637 | ||
| 638 | ||
| 639 | (defun last-sexp-toggle-display (&optional arg) | |
| 640 | "Toggle between abbreviated and unabbreviated printed representations." | |
| 641 | (interactive "P") | |
| 642 | (save-restriction | |
| 643 | (widen) | |
| 644 | (let ((value (get-text-property (point) 'printed-value))) | |
| 645 | (when value | |
| 646 | (let ((beg (or (previous-single-property-change (min (point-max) (1+ (point))) | |
| 647 | 'printed-value) | |
| 648 | (point))) | |
| 649 | (end (or (next-single-char-property-change (point) 'printed-value) (point))) | |
| 650 | (standard-output (current-buffer)) | |
| 651 | (point (point))) | |
| 652 | (delete-region beg end) | |
| 653 | (insert (nth 1 value)) | |
| 654 | (or (= beg point) | |
| 655 | (setq point (1- (point)))) | |
| 656 | (last-sexp-setup-props beg (point) | |
| 657 | (nth 0 value) | |
| 658 | (nth 2 value) | |
| 659 | (nth 1 value)) | |
| 660 | (goto-char (min (point-max) point))))))) | |
| 661 | ||
| 662 | (defun prin1-char (char) | |
| 663 | "Return a string representing CHAR as a character rather than as an integer. | |
| 664 | If CHAR is not a character, return nil." | |
| 665 | (and (integerp char) | |
| 666 | (eventp char) | |
| 667 | (let ((c (event-basic-type char)) | |
| 668 | (mods (event-modifiers char)) | |
| 669 | string) | |
| 670 | ;; Prevent ?A from turning into ?\S-a. | |
| 671 | (if (and (memq 'shift mods) | |
| 672 | (zerop (logand char ?\S-\^@)) | |
| 673 | (not (let ((case-fold-search nil)) | |
| 674 | (char-equal c (upcase c))))) | |
| 675 | (setq c (upcase c) mods nil)) | |
| 676 | ;; What string are we considering using? | |
| 677 | (condition-case nil | |
| 678 | (setq string | |
| 679 | (concat | |
| 680 | "?" | |
| 681 | (mapconcat | |
| 682 | (lambda (modif) | |
| 683 | (cond ((eq modif 'super) "\\s-") | |
| 684 | (t (string ?\\ (upcase (aref (symbol-name modif) 0)) ?-)))) | |
| 685 | mods "") | |
| 686 | (cond | |
| 687 | ((memq c '(?\; ?\( ?\) ?\{ ?\} ?\[ ?\] ?\" ?\' ?\\)) (string ?\\ c)) | |
| 688 | ((eq c 127) "\\C-?") | |
| 689 | (t | |
| 690 | (string c))))) | |
| 691 | (error nil)) | |
| 692 | ;; Verify the string reads a CHAR, not to some other character. | |
| 693 | ;; If it doesn't, return nil instead. | |
| 694 | (and string | |
| 695 | (= (car (read-from-string string)) char) | |
| 696 | string)))) | |
| 697 | ||
| 698 | ||
| 699 | (defun preceding-sexp () | |
| 700 | "Return sexp before the point." | |
| 701 | (let ((opoint (point)) | |
| 702 | ignore-quotes | |
| 703 | expr) | |
| 704 | (save-excursion | |
| 705 | (with-syntax-table emacs-lisp-mode-syntax-table | |
| 706 | ;; If this sexp appears to be enclosed in `...' | |
| 707 | ;; then ignore the surrounding quotes. | |
| 708 | (setq ignore-quotes | |
| 709 | (or (eq (following-char) ?\') | |
| 710 | (eq (preceding-char) ?\'))) | |
| 711 | (forward-sexp -1) | |
| 712 | ;; If we were after `?\e' (or similar case), | |
| 713 | ;; use the whole thing, not just the `e'. | |
| 714 | (when (eq (preceding-char) ?\\) | |
| 715 | (forward-char -1) | |
| 716 | (when (eq (preceding-char) ??) | |
| 717 | (forward-char -1))) | |
| 718 | ||
| 7346a407 CY |
719 | ;; Skip over hash table read syntax. |
| 720 | (and (> (point) (1+ (point-min))) | |
| 721 | (looking-back "#s" (- (point) 2)) | |
| 722 | (forward-char -2)) | |
| 723 | ||
| d6a3febd MR |
724 | ;; Skip over `#N='s. |
| 725 | (when (eq (preceding-char) ?=) | |
| 726 | (let (labeled-p) | |
| 727 | (save-excursion | |
| 728 | (skip-chars-backward "0-9#=") | |
| 729 | (setq labeled-p (looking-at "\\(#[0-9]+=\\)+"))) | |
| 730 | (when labeled-p | |
| 731 | (forward-sexp -1)))) | |
| 732 | ||
| 733 | (save-restriction | |
| 734 | ;; vladimir@cs.ualberta.ca 30-Jul-1997: skip ` in | |
| 735 | ;; `variable' so that the value is returned, not the | |
| 736 | ;; name | |
| 737 | (if (and ignore-quotes | |
| 738 | (eq (following-char) ?`)) | |
| 739 | (forward-char)) | |
| 740 | (narrow-to-region (point-min) opoint) | |
| 741 | (setq expr (read (current-buffer))) | |
| 742 | ;; If it's an (interactive ...) form, it's more | |
| 743 | ;; useful to show how an interactive call would | |
| 744 | ;; use it. | |
| 745 | (and (consp expr) | |
| 746 | (eq (car expr) 'interactive) | |
| 747 | (setq expr | |
| 748 | (list 'call-interactively | |
| 749 | (list 'quote | |
| 750 | (list 'lambda | |
| 751 | '(&rest args) | |
| 752 | expr | |
| 753 | 'args))))) | |
| 754 | expr))))) | |
| 755 | ||
| 756 | ||
| 757 | (defun eval-last-sexp-1 (eval-last-sexp-arg-internal) | |
| 758 | "Evaluate sexp before point; print value in minibuffer. | |
| 759 | With argument, print output into current buffer." | |
| a0ee6f27 | 760 | (let ((standard-output (if eval-last-sexp-arg-internal (current-buffer) t))) |
| b9598260 | 761 | ;; Setup the lexical environment if lexical-binding is enabled. |
| 06788a55 SM |
762 | (eval-last-sexp-print-value |
| 763 | (eval (eval-sexp-add-defvars (preceding-sexp)) lexical-binding)))) | |
| d6a3febd MR |
764 | |
| 765 | ||
| 766 | (defun eval-last-sexp-print-value (value) | |
| 767 | (let ((unabbreviated (let ((print-length nil) (print-level nil)) | |
| 768 | (prin1-to-string value))) | |
| 769 | (print-length eval-expression-print-length) | |
| 770 | (print-level eval-expression-print-level) | |
| 771 | (beg (point)) | |
| 772 | end) | |
| 773 | (prog1 | |
| 774 | (prin1 value) | |
| 775 | (let ((str (eval-expression-print-format value))) | |
| 776 | (if str (princ str))) | |
| 777 | (setq end (point)) | |
| 778 | (when (and (bufferp standard-output) | |
| 779 | (or (not (null print-length)) | |
| 780 | (not (null print-level))) | |
| 781 | (not (string= unabbreviated | |
| 782 | (buffer-substring-no-properties beg end)))) | |
| 783 | (last-sexp-setup-props beg end value | |
| 784 | unabbreviated | |
| 785 | (buffer-substring-no-properties beg end)) | |
| 786 | )))) | |
| 787 | ||
| 788 | ||
| 789 | (defvar eval-last-sexp-fake-value (make-symbol "t")) | |
| 790 | ||
| 06788a55 SM |
791 | (defun eval-sexp-add-defvars (exp &optional pos) |
| 792 | "Prepend EXP with all the `defvar's that precede it in the buffer. | |
| 793 | POS specifies the starting position where EXP was found and defaults to point." | |
| 794 | (if (not lexical-binding) | |
| 795 | exp | |
| 796 | (save-excursion | |
| 797 | (unless pos (setq pos (point))) | |
| 798 | (let ((vars ())) | |
| 799 | (goto-char (point-min)) | |
| 800 | (while (re-search-forward | |
| 9b851e25 | 801 | "(def\\(?:var\\|const\\|custom\\)[ \t\n]+\\([^; '()\n\t]+\\)" |
| 06788a55 SM |
802 | pos t) |
| 803 | (let ((var (intern (match-string 1)))) | |
| 9b851e25 SM |
804 | (and (not (special-variable-p var)) |
| 805 | (save-excursion | |
| 806 | (zerop (car (syntax-ppss (match-beginning 0))))) | |
| 06788a55 SM |
807 | (push var vars)))) |
| 808 | `(progn ,@(mapcar (lambda (v) `(defvar ,v)) vars) ,exp))))) | |
| 7200d79c | 809 | |
| d6a3febd MR |
810 | (defun eval-last-sexp (eval-last-sexp-arg-internal) |
| 811 | "Evaluate sexp before point; print value in minibuffer. | |
| 812 | Interactively, with prefix argument, print output into current buffer. | |
| 16ac2e61 GM |
813 | Truncates long output according to the value of the variables |
| 814 | `eval-expression-print-length' and `eval-expression-print-level'. | |
| d6a3febd MR |
815 | |
| 816 | If `eval-expression-debug-on-error' is non-nil, which is the default, | |
| 817 | this command arranges for all errors to enter the debugger." | |
| 818 | (interactive "P") | |
| 819 | (if (null eval-expression-debug-on-error) | |
| 820 | (eval-last-sexp-1 eval-last-sexp-arg-internal) | |
| 821 | (let ((value | |
| 822 | (let ((debug-on-error eval-last-sexp-fake-value)) | |
| 823 | (cons (eval-last-sexp-1 eval-last-sexp-arg-internal) | |
| 824 | debug-on-error)))) | |
| 825 | (unless (eq (cdr value) eval-last-sexp-fake-value) | |
| 826 | (setq debug-on-error (cdr value))) | |
| 827 | (car value)))) | |
| 828 | ||
| 829 | (defun eval-defun-1 (form) | |
| 830 | "Treat some expressions specially. | |
| 831 | Reset the `defvar' and `defcustom' variables to the initial value. | |
| 832 | Reinitialize the face according to the `defface' specification." | |
| 833 | ;; The code in edebug-defun should be consistent with this, but not | |
| 53964682 | 834 | ;; the same, since this gets a macroexpanded form. |
| d6a3febd MR |
835 | (cond ((not (listp form)) |
| 836 | form) | |
| 837 | ((and (eq (car form) 'defvar) | |
| 838 | (cdr-safe (cdr-safe form)) | |
| 839 | (boundp (cadr form))) | |
| 840 | ;; Force variable to be re-set. | |
| 841 | `(progn (defvar ,(nth 1 form) nil ,@(nthcdr 3 form)) | |
| 842 | (setq-default ,(nth 1 form) ,(nth 2 form)))) | |
| 843 | ;; `defcustom' is now macroexpanded to | |
| 844 | ;; `custom-declare-variable' with a quoted value arg. | |
| 845 | ((and (eq (car form) 'custom-declare-variable) | |
| a0ee6f27 | 846 | (default-boundp (eval (nth 1 form) lexical-binding))) |
| d6a3febd | 847 | ;; Force variable to be bound. |
| a0ee6f27 | 848 | (set-default (eval (nth 1 form) lexical-binding) |
| 4250fdf5 SM |
849 | ;; The second arg is an expression that evaluates to |
| 850 | ;; an expression. The second evaluation is the one | |
| 851 | ;; normally performed not be normal execution but by | |
| 852 | ;; custom-initialize-set (for example), which does not | |
| 853 | ;; use lexical-binding. | |
| 854 | (eval (eval (nth 2 form) lexical-binding))) | |
| d6a3febd MR |
855 | form) |
| 856 | ;; `defface' is macroexpanded to `custom-declare-face'. | |
| 857 | ((eq (car form) 'custom-declare-face) | |
| 858 | ;; Reset the face. | |
| f4f73198 LMI |
859 | (let ((face-symbol (eval (nth 1 form) lexical-binding))) |
| 860 | (setq face-new-frame-defaults | |
| 861 | (assq-delete-all face-symbol face-new-frame-defaults)) | |
| 862 | (put face-symbol 'face-defface-spec nil) | |
| 1c4f115d CY |
863 | (put face-symbol 'face-override-spec nil)) |
| 864 | form) | |
| d6a3febd MR |
865 | ((eq (car form) 'progn) |
| 866 | (cons 'progn (mapcar 'eval-defun-1 (cdr form)))) | |
| 867 | (t form))) | |
| 868 | ||
| 869 | (defun eval-defun-2 () | |
| 870 | "Evaluate defun that point is in or before. | |
| 871 | The value is displayed in the minibuffer. | |
| 872 | If the current defun is actually a call to `defvar', | |
| 873 | then reset the variable using the initial value expression | |
| 874 | even if the variable already has some other value. | |
| 875 | \(Normally `defvar' does not change the variable's value | |
| 876 | if it already has a value.\) | |
| 877 | ||
| 878 | With argument, insert value in current buffer after the defun. | |
| 879 | Return the result of evaluation." | |
| d6a3febd MR |
880 | ;; FIXME: the print-length/level bindings should only be applied while |
| 881 | ;; printing, not while evaluating. | |
| 882 | (let ((debug-on-error eval-expression-debug-on-error) | |
| 883 | (print-length eval-expression-print-length) | |
| 884 | (print-level eval-expression-print-level)) | |
| 885 | (save-excursion | |
| 886 | ;; Arrange for eval-region to "read" the (possibly) altered form. | |
| 887 | ;; eval-region handles recording which file defines a function or | |
| 888 | ;; variable. Re-written using `apply' to avoid capturing | |
| 889 | ;; variables like `end'. | |
| 890 | (apply | |
| 891 | #'eval-region | |
| 892 | (let ((standard-output t) | |
| 893 | beg end form) | |
| 894 | ;; Read the form from the buffer, and record where it ends. | |
| 895 | (save-excursion | |
| 896 | (end-of-defun) | |
| 897 | (beginning-of-defun) | |
| 898 | (setq beg (point)) | |
| e4d4f539 | 899 | (setq form (read (current-buffer))) |
| d6a3febd MR |
900 | (setq end (point))) |
| 901 | ;; Alter the form if necessary. | |
| e4d4f539 | 902 | (setq form (eval-sexp-add-defvars (eval-defun-1 (macroexpand form)))) |
| d6a3febd MR |
903 | (list beg end standard-output |
| 904 | `(lambda (ignore) | |
| 905 | ;; Skipping to the end of the specified region | |
| 906 | ;; will make eval-region return. | |
| 907 | (goto-char ,end) | |
| 908 | ',form)))))) | |
| 909 | ;; The result of evaluation has been put onto VALUES. So return it. | |
| 910 | (car values)) | |
| 911 | ||
| 912 | (defun eval-defun (edebug-it) | |
| 913 | "Evaluate the top-level form containing point, or after point. | |
| 914 | ||
| 915 | If the current defun is actually a call to `defvar' or `defcustom', | |
| 916 | evaluating it this way resets the variable using its initial value | |
| 917 | expression even if the variable already has some other value. | |
| 918 | \(Normally `defvar' and `defcustom' do not alter the value if there | |
| 919 | already is one.) In an analogous way, evaluating a `defface' | |
| 920 | overrides any customizations of the face, so that it becomes | |
| 921 | defined exactly as the `defface' expression says. | |
| 922 | ||
| 923 | If `eval-expression-debug-on-error' is non-nil, which is the default, | |
| 924 | this command arranges for all errors to enter the debugger. | |
| 925 | ||
| 926 | With a prefix argument, instrument the code for Edebug. | |
| 927 | ||
| 928 | If acting on a `defun' for FUNCTION, and the function was | |
| 929 | instrumented, `Edebug: FUNCTION' is printed in the minibuffer. If not | |
| 930 | instrumented, just FUNCTION is printed. | |
| 931 | ||
| 932 | If not acting on a `defun', the result of evaluation is displayed in | |
| 933 | the minibuffer. This display is controlled by the variables | |
| 934 | `eval-expression-print-length' and `eval-expression-print-level', | |
| 935 | which see." | |
| 936 | (interactive "P") | |
| 937 | (cond (edebug-it | |
| 938 | (require 'edebug) | |
| 939 | (eval-defun (not edebug-all-defs))) | |
| 940 | (t | |
| 941 | (if (null eval-expression-debug-on-error) | |
| 942 | (eval-defun-2) | |
| 943 | (let ((old-value (make-symbol "t")) new-value value) | |
| 944 | (let ((debug-on-error old-value)) | |
| 945 | (setq value (eval-defun-2)) | |
| 946 | (setq new-value debug-on-error)) | |
| 947 | (unless (eq old-value new-value) | |
| 948 | (setq debug-on-error new-value)) | |
| 949 | value))))) | |
| 950 | ||
| 951 | ;; May still be used by some external Lisp-mode variant. | |
| 952 | (define-obsolete-function-alias 'lisp-comment-indent | |
| 953 | 'comment-indent-default "22.1") | |
| 954 | (define-obsolete-function-alias 'lisp-mode-auto-fill 'do-auto-fill "23.1") | |
| 955 | ||
| 956 | (defcustom lisp-indent-offset nil | |
| 957 | "If non-nil, indent second line of expressions that many more columns." | |
| 958 | :group 'lisp | |
| 959 | :type '(choice (const nil) integer)) | |
| 3fde45af | 960 | (put 'lisp-indent-offset 'safe-local-variable |
| d6a3febd MR |
961 | (lambda (x) (or (null x) (integerp x)))) |
| 962 | ||
| 3fde45af | 963 | (defcustom lisp-indent-function 'lisp-indent-function |
| c4ea8f00 GM |
964 | "A function to be called by `calculate-lisp-indent'. |
| 965 | It indents the arguments of a Lisp function call. This function | |
| 966 | should accept two arguments: the indent-point, and the | |
| 967 | `parse-partial-sexp' state at that position. One option for this | |
| 3fde45af GM |
968 | function is `common-lisp-indent-function'." |
| 969 | :type 'function | |
| 970 | :group 'lisp) | |
| d6a3febd MR |
971 | |
| 972 | (defun lisp-indent-line (&optional whole-exp) | |
| 973 | "Indent current line as Lisp code. | |
| 974 | With argument, indent any additional lines of the same expression | |
| 975 | rigidly along with this one." | |
| 976 | (interactive "P") | |
| 977 | (let ((indent (calculate-lisp-indent)) shift-amt end | |
| 978 | (pos (- (point-max) (point))) | |
| 979 | (beg (progn (beginning-of-line) (point)))) | |
| 980 | (skip-chars-forward " \t") | |
| 981 | (if (or (null indent) (looking-at "\\s<\\s<\\s<")) | |
| 982 | ;; Don't alter indentation of a ;;; comment line | |
| 983 | ;; or a line that starts in a string. | |
| 9b851e25 | 984 | ;; FIXME: inconsistency: comment-indent moves ;;; to column 0. |
| d6a3febd MR |
985 | (goto-char (- (point-max) pos)) |
| 986 | (if (and (looking-at "\\s<") (not (looking-at "\\s<\\s<"))) | |
| 987 | ;; Single-semicolon comment lines should be indented | |
| 988 | ;; as comment lines, not as code. | |
| 989 | (progn (indent-for-comment) (forward-char -1)) | |
| 990 | (if (listp indent) (setq indent (car indent))) | |
| 991 | (setq shift-amt (- indent (current-column))) | |
| 992 | (if (zerop shift-amt) | |
| 993 | nil | |
| 994 | (delete-region beg (point)) | |
| 995 | (indent-to indent))) | |
| 996 | ;; If initial point was within line's indentation, | |
| 997 | ;; position after the indentation. Else stay at same point in text. | |
| 998 | (if (> (- (point-max) pos) (point)) | |
| 9b851e25 | 999 | (goto-char (- (point-max) pos)))))) |
| d6a3febd MR |
1000 | |
| 1001 | (defvar calculate-lisp-indent-last-sexp) | |
| 1002 | ||
| 1003 | (defun calculate-lisp-indent (&optional parse-start) | |
| 1004 | "Return appropriate indentation for current line as Lisp code. | |
| 1005 | In usual case returns an integer: the column to indent to. | |
| 1006 | If the value is nil, that means don't change the indentation | |
| 1007 | because the line starts inside a string. | |
| 1008 | ||
| 1009 | The value can also be a list of the form (COLUMN CONTAINING-SEXP-START). | |
| 1010 | This means that following lines at the same level of indentation | |
| 1011 | should not necessarily be indented the same as this line. | |
| 1012 | Then COLUMN is the column to indent to, and CONTAINING-SEXP-START | |
| 1013 | is the buffer position of the start of the containing expression." | |
| 1014 | (save-excursion | |
| 1015 | (beginning-of-line) | |
| 1016 | (let ((indent-point (point)) | |
| 1017 | state paren-depth | |
| 1018 | ;; setting this to a number inhibits calling hook | |
| 1019 | (desired-indent nil) | |
| 1020 | (retry t) | |
| 1021 | calculate-lisp-indent-last-sexp containing-sexp) | |
| 1022 | (if parse-start | |
| 1023 | (goto-char parse-start) | |
| 1024 | (beginning-of-defun)) | |
| 1025 | ;; Find outermost containing sexp | |
| 1026 | (while (< (point) indent-point) | |
| 1027 | (setq state (parse-partial-sexp (point) indent-point 0))) | |
| 1028 | ;; Find innermost containing sexp | |
| 1029 | (while (and retry | |
| 1030 | state | |
| 1031 | (> (setq paren-depth (elt state 0)) 0)) | |
| 1032 | (setq retry nil) | |
| 1033 | (setq calculate-lisp-indent-last-sexp (elt state 2)) | |
| 1034 | (setq containing-sexp (elt state 1)) | |
| 1035 | ;; Position following last unclosed open. | |
| 1036 | (goto-char (1+ containing-sexp)) | |
| 1037 | ;; Is there a complete sexp since then? | |
| 1038 | (if (and calculate-lisp-indent-last-sexp | |
| 1039 | (> calculate-lisp-indent-last-sexp (point))) | |
| 1040 | ;; Yes, but is there a containing sexp after that? | |
| 1041 | (let ((peek (parse-partial-sexp calculate-lisp-indent-last-sexp | |
| 1042 | indent-point 0))) | |
| 1043 | (if (setq retry (car (cdr peek))) (setq state peek))))) | |
| 1044 | (if retry | |
| 1045 | nil | |
| 1046 | ;; Innermost containing sexp found | |
| 1047 | (goto-char (1+ containing-sexp)) | |
| 1048 | (if (not calculate-lisp-indent-last-sexp) | |
| 1049 | ;; indent-point immediately follows open paren. | |
| 1050 | ;; Don't call hook. | |
| 1051 | (setq desired-indent (current-column)) | |
| 1052 | ;; Find the start of first element of containing sexp. | |
| 1053 | (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t) | |
| 1054 | (cond ((looking-at "\\s(") | |
| 1055 | ;; First element of containing sexp is a list. | |
| 1056 | ;; Indent under that list. | |
| 1057 | ) | |
| 1058 | ((> (save-excursion (forward-line 1) (point)) | |
| 1059 | calculate-lisp-indent-last-sexp) | |
| 1060 | ;; This is the first line to start within the containing sexp. | |
| 1061 | ;; It's almost certainly a function call. | |
| 1062 | (if (= (point) calculate-lisp-indent-last-sexp) | |
| 1063 | ;; Containing sexp has nothing before this line | |
| 1064 | ;; except the first element. Indent under that element. | |
| 1065 | nil | |
| 1066 | ;; Skip the first element, find start of second (the first | |
| 1067 | ;; argument of the function call) and indent under. | |
| 1068 | (progn (forward-sexp 1) | |
| 1069 | (parse-partial-sexp (point) | |
| 1070 | calculate-lisp-indent-last-sexp | |
| 1071 | 0 t))) | |
| 1072 | (backward-prefix-chars)) | |
| 1073 | (t | |
| 1074 | ;; Indent beneath first sexp on same line as | |
| 1075 | ;; `calculate-lisp-indent-last-sexp'. Again, it's | |
| 1076 | ;; almost certainly a function call. | |
| 1077 | (goto-char calculate-lisp-indent-last-sexp) | |
| 1078 | (beginning-of-line) | |
| 1079 | (parse-partial-sexp (point) calculate-lisp-indent-last-sexp | |
| 1080 | 0 t) | |
| 1081 | (backward-prefix-chars))))) | |
| 1082 | ;; Point is at the point to indent under unless we are inside a string. | |
| 1083 | ;; Call indentation hook except when overridden by lisp-indent-offset | |
| 1084 | ;; or if the desired indentation has already been computed. | |
| 1085 | (let ((normal-indent (current-column))) | |
| 1086 | (cond ((elt state 3) | |
| 1087 | ;; Inside a string, don't change indentation. | |
| 1088 | nil) | |
| 1089 | ((and (integerp lisp-indent-offset) containing-sexp) | |
| 1090 | ;; Indent by constant offset | |
| 1091 | (goto-char containing-sexp) | |
| 1092 | (+ (current-column) lisp-indent-offset)) | |
| 1093 | ;; in this case calculate-lisp-indent-last-sexp is not nil | |
| 1094 | (calculate-lisp-indent-last-sexp | |
| 1095 | (or | |
| 1096 | ;; try to align the parameters of a known function | |
| 1097 | (and lisp-indent-function | |
| 1098 | (not retry) | |
| 1099 | (funcall lisp-indent-function indent-point state)) | |
| 1100 | ;; If the function has no special alignment | |
| 1101 | ;; or it does not apply to this argument, | |
| 1102 | ;; try to align a constant-symbol under the last | |
| 1103 | ;; preceding constant symbol, if there is such one of | |
| 1104 | ;; the last 2 preceding symbols, in the previous | |
| 1105 | ;; uncommented line. | |
| 1106 | (and (save-excursion | |
| 1107 | (goto-char indent-point) | |
| 1108 | (skip-chars-forward " \t") | |
| 1109 | (looking-at ":")) | |
| 1110 | ;; The last sexp may not be at the indentation | |
| 1111 | ;; where it begins, so find that one, instead. | |
| 1112 | (save-excursion | |
| 1113 | (goto-char calculate-lisp-indent-last-sexp) | |
| 1114 | ;; Handle prefix characters and whitespace | |
| 1115 | ;; following an open paren. (Bug#1012) | |
| 1116 | (backward-prefix-chars) | |
| 1117 | (while (and (not (looking-back "^[ \t]*\\|([ \t]+")) | |
| 1118 | (or (not containing-sexp) | |
| 1119 | (< (1+ containing-sexp) (point)))) | |
| 1120 | (forward-sexp -1) | |
| 1121 | (backward-prefix-chars)) | |
| 1122 | (setq calculate-lisp-indent-last-sexp (point))) | |
| 1123 | (> calculate-lisp-indent-last-sexp | |
| 1124 | (save-excursion | |
| 1125 | (goto-char (1+ containing-sexp)) | |
| 1126 | (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t) | |
| 1127 | (point))) | |
| 1128 | (let ((parse-sexp-ignore-comments t) | |
| 1129 | indent) | |
| 1130 | (goto-char calculate-lisp-indent-last-sexp) | |
| 1131 | (or (and (looking-at ":") | |
| 1132 | (setq indent (current-column))) | |
| 5ed619e0 | 1133 | (and (< (line-beginning-position) |
| d6a3febd MR |
1134 | (prog2 (backward-sexp) (point))) |
| 1135 | (looking-at ":") | |
| 1136 | (setq indent (current-column)))) | |
| 1137 | indent)) | |
| 1138 | ;; another symbols or constants not preceded by a constant | |
| 1139 | ;; as defined above. | |
| 1140 | normal-indent)) | |
| 1141 | ;; in this case calculate-lisp-indent-last-sexp is nil | |
| 1142 | (desired-indent) | |
| 1143 | (t | |
| 1144 | normal-indent)))))) | |
| 1145 | ||
| 1146 | (defun lisp-indent-function (indent-point state) | |
| 1147 | "This function is the normal value of the variable `lisp-indent-function'. | |
| b7556719 GM |
1148 | The function `calculate-lisp-indent' calls this to determine |
| 1149 | if the arguments of a Lisp function call should be indented specially. | |
| d6a3febd MR |
1150 | |
| 1151 | INDENT-POINT is the position where the user typed TAB, or equivalent. | |
| 1152 | Point is located at the point to indent under (for default indentation); | |
| 1153 | STATE is the `parse-partial-sexp' state for that position. | |
| 1154 | ||
| b7556719 GM |
1155 | If the current line is in a call to a Lisp function that has a non-nil |
| 1156 | property `lisp-indent-function' (or the deprecated `lisp-indent-hook'), | |
| 1157 | it specifies how to indent. The property value can be: | |
| 1158 | ||
| 1159 | * `defun', meaning indent `defun'-style | |
| 1160 | \(this is also the case if there is no property and the function | |
| 1161 | has a name that begins with \"def\", and three or more arguments); | |
| 1162 | ||
| d6a3febd | 1163 | * an integer N, meaning indent the first N arguments specially |
| b7556719 | 1164 | (like ordinary function arguments), and then indent any further |
| d6a3febd | 1165 | arguments like a body; |
| d6a3febd | 1166 | |
| b7556719 GM |
1167 | * a function to call that returns the indentation (or nil). |
| 1168 | `lisp-indent-function' calls this function with the same two arguments | |
| 1169 | that it itself received. | |
| 1170 | ||
| 1171 | This function returns either the indentation to use, or nil if the | |
| 1172 | Lisp function does not specify a special indentation." | |
| d6a3febd MR |
1173 | (let ((normal-indent (current-column))) |
| 1174 | (goto-char (1+ (elt state 1))) | |
| 1175 | (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t) | |
| 1176 | (if (and (elt state 2) | |
| 1177 | (not (looking-at "\\sw\\|\\s_"))) | |
| 1178 | ;; car of form doesn't seem to be a symbol | |
| 1179 | (progn | |
| 1180 | (if (not (> (save-excursion (forward-line 1) (point)) | |
| 1181 | calculate-lisp-indent-last-sexp)) | |
| 1182 | (progn (goto-char calculate-lisp-indent-last-sexp) | |
| 1183 | (beginning-of-line) | |
| 1184 | (parse-partial-sexp (point) | |
| 1185 | calculate-lisp-indent-last-sexp 0 t))) | |
| 1186 | ;; Indent under the list or under the first sexp on the same | |
| 1187 | ;; line as calculate-lisp-indent-last-sexp. Note that first | |
| 1188 | ;; thing on that line has to be complete sexp since we are | |
| 1189 | ;; inside the innermost containing sexp. | |
| 1190 | (backward-prefix-chars) | |
| 1191 | (current-column)) | |
| 1192 | (let ((function (buffer-substring (point) | |
| 1193 | (progn (forward-sexp 1) (point)))) | |
| 1194 | method) | |
| 7abaf5cc SM |
1195 | (setq method (or (function-get (intern-soft function) |
| 1196 | 'lisp-indent-function) | |
| d6a3febd MR |
1197 | (get (intern-soft function) 'lisp-indent-hook))) |
| 1198 | (cond ((or (eq method 'defun) | |
| 1199 | (and (null method) | |
| 1200 | (> (length function) 3) | |
| 1201 | (string-match "\\`def" function))) | |
| 1202 | (lisp-indent-defform state indent-point)) | |
| 1203 | ((integerp method) | |
| 1204 | (lisp-indent-specform method state | |
| 1205 | indent-point normal-indent)) | |
| 1206 | (method | |
| 1207 | (funcall method indent-point state))))))) | |
| 1208 | ||
| 1209 | (defcustom lisp-body-indent 2 | |
| 1210 | "Number of columns to indent the second line of a `(def...)' form." | |
| 1211 | :group 'lisp | |
| 1212 | :type 'integer) | |
| 1213 | (put 'lisp-body-indent 'safe-local-variable 'integerp) | |
| 1214 | ||
| 1215 | (defun lisp-indent-specform (count state indent-point normal-indent) | |
| 1216 | (let ((containing-form-start (elt state 1)) | |
| 1217 | (i count) | |
| 1218 | body-indent containing-form-column) | |
| 1219 | ;; Move to the start of containing form, calculate indentation | |
| 1220 | ;; to use for non-distinguished forms (> count), and move past the | |
| 1221 | ;; function symbol. lisp-indent-function guarantees that there is at | |
| 1222 | ;; least one word or symbol character following open paren of containing | |
| 1223 | ;; form. | |
| 1224 | (goto-char containing-form-start) | |
| 1225 | (setq containing-form-column (current-column)) | |
| 1226 | (setq body-indent (+ lisp-body-indent containing-form-column)) | |
| 1227 | (forward-char 1) | |
| 1228 | (forward-sexp 1) | |
| 1229 | ;; Now find the start of the last form. | |
| 1230 | (parse-partial-sexp (point) indent-point 1 t) | |
| 1231 | (while (and (< (point) indent-point) | |
| 1232 | (condition-case () | |
| 1233 | (progn | |
| 1234 | (setq count (1- count)) | |
| 1235 | (forward-sexp 1) | |
| 1236 | (parse-partial-sexp (point) indent-point 1 t)) | |
| 1237 | (error nil)))) | |
| 1238 | ;; Point is sitting on first character of last (or count) sexp. | |
| 1239 | (if (> count 0) | |
| 1240 | ;; A distinguished form. If it is the first or second form use double | |
| 1241 | ;; lisp-body-indent, else normal indent. With lisp-body-indent bound | |
| 1242 | ;; to 2 (the default), this just happens to work the same with if as | |
| 1243 | ;; the older code, but it makes unwind-protect, condition-case, | |
| 1244 | ;; with-output-to-temp-buffer, et. al. much more tasteful. The older, | |
| 1245 | ;; less hacked, behavior can be obtained by replacing below with | |
| 1246 | ;; (list normal-indent containing-form-start). | |
| 1247 | (if (<= (- i count) 1) | |
| 1248 | (list (+ containing-form-column (* 2 lisp-body-indent)) | |
| 1249 | containing-form-start) | |
| 1250 | (list normal-indent containing-form-start)) | |
| 1251 | ;; A non-distinguished form. Use body-indent if there are no | |
| 1252 | ;; distinguished forms and this is the first undistinguished form, | |
| 1253 | ;; or if this is the first undistinguished form and the preceding | |
| 1254 | ;; distinguished form has indentation at least as great as body-indent. | |
| 1255 | (if (or (and (= i 0) (= count 0)) | |
| 1256 | (and (= count 0) (<= body-indent normal-indent))) | |
| 1257 | body-indent | |
| 1258 | normal-indent)))) | |
| 1259 | ||
| 1260 | (defun lisp-indent-defform (state indent-point) | |
| 1261 | (goto-char (car (cdr state))) | |
| 1262 | (forward-line 1) | |
| 1263 | (if (> (point) (car (cdr (cdr state)))) | |
| 1264 | (progn | |
| 1265 | (goto-char (car (cdr state))) | |
| 1266 | (+ lisp-body-indent (current-column))))) | |
| 1267 | ||
| 1268 | ||
| 1269 | ;; (put 'progn 'lisp-indent-function 0), say, causes progn to be indented | |
| 1270 | ;; like defun if the first form is placed on the next line, otherwise | |
| 1271 | ;; it is indented like any other form (i.e. forms line up under first). | |
| 1272 | ||
| d6a3febd MR |
1273 | (put 'autoload 'lisp-indent-function 'defun) |
| 1274 | (put 'progn 'lisp-indent-function 0) | |
| 1275 | (put 'prog1 'lisp-indent-function 1) | |
| 1276 | (put 'prog2 'lisp-indent-function 2) | |
| 1277 | (put 'save-excursion 'lisp-indent-function 0) | |
| d6a3febd | 1278 | (put 'save-restriction 'lisp-indent-function 0) |
| d6a3febd | 1279 | (put 'save-current-buffer 'lisp-indent-function 0) |
| d6a3febd MR |
1280 | (put 'let 'lisp-indent-function 1) |
| 1281 | (put 'let* 'lisp-indent-function 1) | |
| 1282 | (put 'while 'lisp-indent-function 1) | |
| 1283 | (put 'if 'lisp-indent-function 2) | |
| d6a3febd MR |
1284 | (put 'catch 'lisp-indent-function 1) |
| 1285 | (put 'condition-case 'lisp-indent-function 2) | |
| 1286 | (put 'unwind-protect 'lisp-indent-function 1) | |
| 1287 | (put 'with-output-to-temp-buffer 'lisp-indent-function 1) | |
| d6a3febd MR |
1288 | |
| 1289 | (defun indent-sexp (&optional endpos) | |
| 1290 | "Indent each line of the list starting just after point. | |
| 1291 | If optional arg ENDPOS is given, indent each line, stopping when | |
| 1292 | ENDPOS is encountered." | |
| 1293 | (interactive) | |
| 1294 | (let ((indent-stack (list nil)) | |
| 1295 | (next-depth 0) | |
| 1296 | ;; If ENDPOS is non-nil, use nil as STARTING-POINT | |
| 1297 | ;; so that calculate-lisp-indent will find the beginning of | |
| 1298 | ;; the defun we are in. | |
| 1299 | ;; If ENDPOS is nil, it is safe not to scan before point | |
| 1300 | ;; since every line we indent is more deeply nested than point is. | |
| 1301 | (starting-point (if endpos nil (point))) | |
| 1302 | (last-point (point)) | |
| 1303 | last-depth bol outer-loop-done inner-loop-done state this-indent) | |
| 1304 | (or endpos | |
| 1305 | ;; Get error now if we don't have a complete sexp after point. | |
| 1306 | (save-excursion (forward-sexp 1))) | |
| 1307 | (save-excursion | |
| 1308 | (setq outer-loop-done nil) | |
| 1309 | (while (if endpos (< (point) endpos) | |
| 1310 | (not outer-loop-done)) | |
| 1311 | (setq last-depth next-depth | |
| 1312 | inner-loop-done nil) | |
| 1313 | ;; Parse this line so we can learn the state | |
| 1314 | ;; to indent the next line. | |
| 1315 | ;; This inner loop goes through only once | |
| 1316 | ;; unless a line ends inside a string. | |
| 1317 | (while (and (not inner-loop-done) | |
| 1318 | (not (setq outer-loop-done (eobp)))) | |
| 1319 | (setq state (parse-partial-sexp (point) (progn (end-of-line) (point)) | |
| 1320 | nil nil state)) | |
| 1321 | (setq next-depth (car state)) | |
| 1322 | ;; If the line contains a comment other than the sort | |
| 1323 | ;; that is indented like code, | |
| 1324 | ;; indent it now with indent-for-comment. | |
| 1325 | ;; Comments indented like code are right already. | |
| 1326 | ;; In any case clear the in-comment flag in the state | |
| 1327 | ;; because parse-partial-sexp never sees the newlines. | |
| 1328 | (if (car (nthcdr 4 state)) | |
| 1329 | (progn (indent-for-comment) | |
| 1330 | (end-of-line) | |
| 1331 | (setcar (nthcdr 4 state) nil))) | |
| 1332 | ;; If this line ends inside a string, | |
| 1333 | ;; go straight to next line, remaining within the inner loop, | |
| 1334 | ;; and turn off the \-flag. | |
| 1335 | (if (car (nthcdr 3 state)) | |
| 1336 | (progn | |
| 1337 | (forward-line 1) | |
| 1338 | (setcar (nthcdr 5 state) nil)) | |
| 1339 | (setq inner-loop-done t))) | |
| 1340 | (and endpos | |
| 1341 | (<= next-depth 0) | |
| 1342 | (progn | |
| 1343 | (setq indent-stack (nconc indent-stack | |
| 1344 | (make-list (- next-depth) nil)) | |
| 1345 | last-depth (- last-depth next-depth) | |
| 1346 | next-depth 0))) | |
| 1347 | (forward-line 1) | |
| 1348 | ;; Decide whether to exit. | |
| 1349 | (if endpos | |
| 1350 | ;; If we have already reached the specified end, | |
| 1351 | ;; give up and do not reindent this line. | |
| 1352 | (if (<= endpos (point)) | |
| 1353 | (setq outer-loop-done t)) | |
| 1354 | ;; If no specified end, we are done if we have finished one sexp. | |
| 1355 | (if (<= next-depth 0) | |
| 1356 | (setq outer-loop-done t))) | |
| 1357 | (unless outer-loop-done | |
| 1358 | (while (> last-depth next-depth) | |
| 1359 | (setq indent-stack (cdr indent-stack) | |
| 1360 | last-depth (1- last-depth))) | |
| 1361 | (while (< last-depth next-depth) | |
| 1362 | (setq indent-stack (cons nil indent-stack) | |
| 1363 | last-depth (1+ last-depth))) | |
| 1364 | ;; Now indent the next line according | |
| 1365 | ;; to what we learned from parsing the previous one. | |
| 1366 | (setq bol (point)) | |
| 1367 | (skip-chars-forward " \t") | |
| 1368 | ;; But not if the line is blank, or just a comment | |
| 1369 | ;; (except for double-semi comments; indent them as usual). | |
| 1370 | (if (or (eobp) (looking-at "\\s<\\|\n")) | |
| 1371 | nil | |
| 1372 | (if (and (car indent-stack) | |
| 1373 | (>= (car indent-stack) 0)) | |
| 1374 | (setq this-indent (car indent-stack)) | |
| 1375 | (let ((val (calculate-lisp-indent | |
| 1376 | (if (car indent-stack) (- (car indent-stack)) | |
| 1377 | starting-point)))) | |
| 1378 | (if (null val) | |
| 1379 | (setq this-indent val) | |
| 1380 | (if (integerp val) | |
| 1381 | (setcar indent-stack | |
| 1382 | (setq this-indent val)) | |
| 1383 | (setcar indent-stack (- (car (cdr val)))) | |
| 1384 | (setq this-indent (car val)))))) | |
| 1385 | (if (and this-indent (/= (current-column) this-indent)) | |
| 1386 | (progn (delete-region bol (point)) | |
| 1387 | (indent-to this-indent))))) | |
| 1388 | (or outer-loop-done | |
| 1389 | (setq outer-loop-done (= (point) last-point)) | |
| 1390 | (setq last-point (point))))))) | |
| 1391 | ||
| d6a3febd MR |
1392 | (defun indent-pp-sexp (&optional arg) |
| 1393 | "Indent each line of the list starting just after point, or prettyprint it. | |
| 1394 | A prefix argument specifies pretty-printing." | |
| 1395 | (interactive "P") | |
| 1396 | (if arg | |
| 1397 | (save-excursion | |
| 1398 | (save-restriction | |
| 1399 | (narrow-to-region (point) (progn (forward-sexp 1) (point))) | |
| 1400 | (pp-buffer) | |
| 1401 | (goto-char (point-max)) | |
| 1402 | (if (eq (char-before) ?\n) | |
| 1403 | (delete-char -1))))) | |
| 1404 | (indent-sexp)) | |
| 1405 | ||
| 1406 | ;;;; Lisp paragraph filling commands. | |
| 1407 | ||
| 1408 | (defcustom emacs-lisp-docstring-fill-column 65 | |
| 1409 | "Value of `fill-column' to use when filling a docstring. | |
| 1410 | Any non-integer value means do not use a different value of | |
| 1411 | `fill-column' when filling docstrings." | |
| 1412 | :type '(choice (integer) | |
| 1413 | (const :tag "Use the current `fill-column'" t)) | |
| 1414 | :group 'lisp) | |
| 1415 | ||
| 1416 | (defun lisp-fill-paragraph (&optional justify) | |
| 1417 | "Like \\[fill-paragraph], but handle Emacs Lisp comments and docstrings. | |
| 1418 | If any of the current line is a comment, fill the comment or the | |
| 1419 | paragraph of it that point is in, preserving the comment's indentation | |
| 1420 | and initial semicolons." | |
| 1421 | (interactive "P") | |
| 1422 | (or (fill-comment-paragraph justify) | |
| 1423 | ;; Since fill-comment-paragraph returned nil, that means we're not in | |
| 1424 | ;; a comment: Point is on a program line; we are interested | |
| 1425 | ;; particularly in docstring lines. | |
| 1426 | ;; | |
| 1427 | ;; We bind `paragraph-start' and `paragraph-separate' temporarily. They | |
| 1428 | ;; are buffer-local, but we avoid changing them so that they can be set | |
| 1429 | ;; to make `forward-paragraph' and friends do something the user wants. | |
| 1430 | ;; | |
| 1431 | ;; `paragraph-start': The `(' in the character alternative and the | |
| 1432 | ;; left-singlequote plus `(' sequence after the \\| alternative prevent | |
| 1433 | ;; sexps and backquoted sexps that follow a docstring from being filled | |
| 1434 | ;; with the docstring. This setting has the consequence of inhibiting | |
| 1435 | ;; filling many program lines that are not docstrings, which is sensible, | |
| 1436 | ;; because the user probably asked to fill program lines by accident, or | |
| 1437 | ;; expecting indentation (perhaps we should try to do indenting in that | |
| 1438 | ;; case). The `;' and `:' stop the paragraph being filled at following | |
| 1439 | ;; comment lines and at keywords (e.g., in `defcustom'). Left parens are | |
| 1440 | ;; escaped to keep font-locking, filling, & paren matching in the source | |
| 1441 | ;; file happy. | |
| 1442 | ;; | |
| 1443 | ;; `paragraph-separate': A clever regexp distinguishes the first line of | |
| 1444 | ;; a docstring and identifies it as a paragraph separator, so that it | |
| 1445 | ;; won't be filled. (Since the first line of documentation stands alone | |
| 1446 | ;; in some contexts, filling should not alter the contents the author has | |
| 1447 | ;; chosen.) Only the first line of a docstring begins with whitespace | |
| 1448 | ;; and a quotation mark and ends with a period or (rarely) a comma. | |
| 1449 | ;; | |
| 1450 | ;; The `fill-column' is temporarily bound to | |
| 1451 | ;; `emacs-lisp-docstring-fill-column' if that value is an integer. | |
| 1452 | (let ((paragraph-start (concat paragraph-start | |
| 1453 | "\\|\\s-*\\([(;:\"]\\|`(\\|#'(\\)")) | |
| 1454 | (paragraph-separate | |
| 1455 | (concat paragraph-separate "\\|\\s-*\".*[,\\.]$")) | |
| 1456 | (fill-column (if (and (integerp emacs-lisp-docstring-fill-column) | |
| 1457 | (derived-mode-p 'emacs-lisp-mode)) | |
| 1458 | emacs-lisp-docstring-fill-column | |
| 1459 | fill-column))) | |
| 1460 | (fill-paragraph justify)) | |
| 1461 | ;; Never return nil. | |
| 1462 | t)) | |
| 1463 | ||
| 1464 | (defun indent-code-rigidly (start end arg &optional nochange-regexp) | |
| 1465 | "Indent all lines of code, starting in the region, sideways by ARG columns. | |
| 1466 | Does not affect lines starting inside comments or strings, assuming that | |
| 1467 | the start of the region is not inside them. | |
| 1468 | ||
| 1469 | Called from a program, takes args START, END, COLUMNS and NOCHANGE-REGEXP. | |
| 1470 | The last is a regexp which, if matched at the beginning of a line, | |
| 1471 | means don't indent that line." | |
| 1472 | (interactive "r\np") | |
| 1473 | (let (state) | |
| 1474 | (save-excursion | |
| 1475 | (goto-char end) | |
| 1476 | (setq end (point-marker)) | |
| 1477 | (goto-char start) | |
| 1478 | (or (bolp) | |
| 1479 | (setq state (parse-partial-sexp (point) | |
| 1480 | (progn | |
| 1481 | (forward-line 1) (point)) | |
| 1482 | nil nil state))) | |
| 1483 | (while (< (point) end) | |
| 1484 | (or (car (nthcdr 3 state)) | |
| 1485 | (and nochange-regexp | |
| 1486 | (looking-at nochange-regexp)) | |
| 1487 | ;; If line does not start in string, indent it | |
| 1488 | (let ((indent (current-indentation))) | |
| 1489 | (delete-region (point) (progn (skip-chars-forward " \t") (point))) | |
| 1490 | (or (eolp) | |
| 1491 | (indent-to (max 0 (+ indent arg)) 0)))) | |
| 1492 | (setq state (parse-partial-sexp (point) | |
| 1493 | (progn | |
| 1494 | (forward-line 1) (point)) | |
| 1495 | nil nil state)))))) | |
| 1496 | ||
| 1497 | (provide 'lisp-mode) | |
| 1498 | ||
| d6a3febd | 1499 | ;;; lisp-mode.el ends here |