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1;;; cl-indent.el --- enhanced lisp-indent mode
2
ba318903 3;; Copyright (C) 1987, 2000-2014 Free Software Foundation, Inc.
e41b2db1 4
a7acbbe4 5;; Author: Richard Mlynarik <mly@eddie.mit.edu>
e41b2db1 6;; Created: July 1987
34dc21db 7;; Maintainer: emacs-devel@gnu.org
fd7fa35a 8;; Keywords: lisp, tools
bd78fa1d 9;; Package: emacs
e5167999 10
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11;; This file is part of GNU Emacs.
12
d6cba7ae 13;; GNU Emacs is free software: you can redistribute it and/or modify
745bc783 14;; it under the terms of the GNU General Public License as published by
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15;; the Free Software Foundation, either version 3 of the License, or
16;; (at your option) any later version.
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17
18;; GNU Emacs is distributed in the hope that it will be useful,
19;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21;; GNU General Public License for more details.
22
23;; You should have received a copy of the GNU General Public License
d6cba7ae 24;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
745bc783 25
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26;;; Commentary:
27
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28;; This package supplies a single entry point, common-lisp-indent-function,
29;; which performs indentation in the preferred style for Common Lisp code.
30;; To enable it:
31;;
32;; (setq lisp-indent-function 'common-lisp-indent-function)
33
e5167999 34;;; Code:
745bc783 35
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36(eval-when-compile (require 'cl))
37
fcad5199 38(defgroup lisp-indent nil
ec0421f3 39 "Indentation in Lisp."
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40 :group 'lisp)
41
42
43(defcustom lisp-indent-maximum-backtracking 3
c66cd0ff 44 "Maximum depth to backtrack out from a sublist for structured indentation.
ec0421f3 45If this variable is 0, no backtracking will occur and forms such as `flet'
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46may not be correctly indented."
47 :type 'integer
48 :group 'lisp-indent)
745bc783 49
fcad5199 50(defcustom lisp-tag-indentation 1
c66cd0ff 51 "Indentation of tags relative to containing list.
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52This variable is used by the function `lisp-indent-tagbody'."
53 :type 'integer
54 :group 'lisp-indent)
745bc783 55
fcad5199 56(defcustom lisp-tag-body-indentation 3
c66cd0ff 57 "Indentation of non-tagged lines relative to containing list.
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58This variable is used by the function `lisp-indent-tagbody' to indent normal
59lines (lines without tags).
60The indentation is relative to the indentation of the parenthesis enclosing
61the special form. If the value is t, the body of tags will be indented
62as a block at the same indentation as the first s-expression following
63the tag. In this case, any forms before the first tag are indented
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64by `lisp-body-indent'."
65 :type 'integer
66 :group 'lisp-indent)
745bc783 67
59e0f579 68(defcustom lisp-backquote-indentation t
c66cd0ff 69 "Whether or not to indent backquoted lists as code.
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70If nil, indent backquoted lists as data, i.e., like quoted lists."
71 :type 'boolean
72 :group 'lisp-indent)
73
74
75(defcustom lisp-loop-keyword-indentation 3
c66cd0ff 76 "Indentation of loop keywords in extended loop forms."
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77 :type 'integer
78 :group 'lisp-indent)
79
80
81(defcustom lisp-loop-forms-indentation 5
c66cd0ff 82 "Indentation of forms in extended loop forms."
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83 :type 'integer
84 :group 'lisp-indent)
85
86
87(defcustom lisp-simple-loop-indentation 3
c66cd0ff 88 "Indentation of forms in simple loop forms."
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89 :type 'integer
90 :group 'lisp-indent)
91
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92(defcustom lisp-lambda-list-keyword-alignment nil
93 "Whether to vertically align lambda-list keywords together.
94If nil (the default), keyworded lambda-list parts are aligned
95with the initial mandatory arguments, like this:
96
97\(defun foo (arg1 arg2 &rest rest
98 &key key1 key2)
99 #|...|#)
100
101If non-nil, alignment is done with the first keyword
102\(or falls back to the previous case), as in:
103
104\(defun foo (arg1 arg2 &rest rest
105 &key key1 key2)
106 #|...|#)"
2bed3f04 107 :version "24.1"
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108 :type 'boolean
109 :group 'lisp-indent)
110
111(defcustom lisp-lambda-list-keyword-parameter-indentation 2
112 "Indentation of lambda list keyword parameters.
113See `lisp-lambda-list-keyword-parameter-alignment'
114for more information."
2bed3f04 115 :version "24.1"
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116 :type 'integer
117 :group 'lisp-indent)
118
119(defcustom lisp-lambda-list-keyword-parameter-alignment nil
120 "Whether to vertically align lambda-list keyword parameters together.
121If nil (the default), the parameters are aligned
122with their corresponding keyword, plus the value of
123`lisp-lambda-list-keyword-parameter-indentation', like this:
124
125\(defun foo (arg1 arg2 &key key1 key2
126 key3 key4)
127 #|...|#)
128
129If non-nil, alignment is done with the first parameter
130\(or falls back to the previous case), as in:
131
132\(defun foo (arg1 arg2 &key key1 key2
133 key3 key4)
134 #|...|#)"
2bed3f04 135 :version "24.1"
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136 :type 'boolean
137 :group 'lisp-indent)
138
745bc783 139\f
0ae8ebe8 140(defvar lisp-indent-defun-method '(4 &lambda &body)
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141 "Defun-like indentation method.
142This applies when the value of the `common-lisp-indent-function' property
143is set to `defun'.")
bf92b5a4 144
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145
146(defun extended-loop-p (loop-start)
cb0fd101 147 "True if an extended loop form starts at LOOP-START."
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148 (condition-case ()
149 (save-excursion
150 (goto-char loop-start)
151 (forward-char 1)
152 (forward-sexp 2)
153 (backward-sexp 1)
154 (looking-at "\\sw"))
155 (error t)))
156
157
158(defun common-lisp-loop-part-indentation (indent-point state)
159 "Compute the indentation of loop form constituents."
160 (let* ((loop-indentation (save-excursion
161 (goto-char (elt state 1))
162 (current-column))))
163 (goto-char indent-point)
164 (beginning-of-line)
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165 (list
166 (cond ((not (extended-loop-p (elt state 1)))
167 (+ loop-indentation lisp-simple-loop-indentation))
168 ((looking-at "^\\s-*\\(:?\\sw+\\|;\\)")
169 (+ loop-indentation lisp-loop-keyword-indentation))
170 (t
171 (+ loop-indentation lisp-loop-forms-indentation)))
172 ;; Tell the caller that the next line needs recomputation, even
173 ;; though it doesn't start a sexp.
174 loop-indentation)))
a1506d29 175
59e0f579 176
b7556719 177;; Cf (info "(elisp)Specification List")
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178;;;###autoload
179(defun common-lisp-indent-function (indent-point state)
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180 "Function to indent the arguments of a Lisp function call.
181This is suitable for use as the value of the variable
182`lisp-indent-function'. INDENT-POINT is the point at which the
183indentation function is called, and STATE is the
184`parse-partial-sexp' state at that position. Browse the
185`lisp-indent' customize group for options affecting the behavior
186of this function.
187
188If the indentation point is in a call to a Lisp function, that
8497a297 189function's `common-lisp-indent-function' property specifies how
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190this function should indent it. Possible values for this
191property are:
192
193* defun, meaning indent according to `lisp-indent-defun-method';
194 i.e., like (4 &lambda &body), as explained below.
195
196* any other symbol, meaning a function to call. The function should
197 take the arguments: PATH STATE INDENT-POINT SEXP-COLUMN NORMAL-INDENT.
198 PATH is a list of integers describing the position of point in terms of
199 list-structure with respect to the containing lists. For example, in
200 ((a b c (d foo) f) g), foo has a path of (0 3 1). In other words,
201 to reach foo take the 0th element of the outermost list, then
202 the 3rd element of the next list, and finally the 1st element.
203 STATE and INDENT-POINT are as in the arguments to
204 `common-lisp-indent-function'. SEXP-COLUMN is the column of
205 the open parenthesis of the innermost containing list.
206 NORMAL-INDENT is the column the indentation point was
207 originally in. This function should behave like `lisp-indent-259'.
208
209* an integer N, meaning indent the first N arguments like
210 function arguments, and any further arguments like a body.
211 This is equivalent to (4 4 ... &body).
212
213* a list. The list element in position M specifies how to indent the Mth
214 function argument. If there are fewer elements than function arguments,
215 the last list element applies to all remaining arguments. The accepted
216 list elements are:
217
218 * nil, meaning the default indentation.
219
220 * an integer, specifying an explicit indentation.
221
222 * &lambda. Indent the argument (which may be a list) by 4.
223
224 * &rest. When used, this must be the penultimate element. The
225 element after this one applies to all remaining arguments.
226
227 * &body. This is equivalent to &rest lisp-body-indent, i.e., indent
228 all remaining elements by `lisp-body-indent'.
229
230 * &whole. This must be followed by nil, an integer, or a
231 function symbol. This indentation is applied to the
232 associated argument, and as a base indent for all remaining
233 arguments. For example, an integer P means indent this
234 argument by P, and all remaining arguments by P, plus the
235 value specified by their associated list element.
236
237 * a symbol. A function to call, with the 6 arguments specified above.
238
239 * a list, with elements as described above. This applies when the
240 associated function argument is itself a list. Each element of the list
241 specifies how to indent the associated argument.
242
243For example, the function `case' has an indent property
244\(4 &rest (&whole 2 &rest 1)), meaning:
245 * indent the first argument by 4.
246 * arguments after the first should be lists, and there may be any number
247 of them. The first list element has an offset of 2, all the rest
248 have an offset of 2+1=3."
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249 (if (save-excursion (goto-char (elt state 1))
250 (looking-at "([Ll][Oo][Oo][Pp]"))
251 (common-lisp-loop-part-indentation indent-point state)
252 (common-lisp-indent-function-1 indent-point state)))
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253
254
59e0f579 255(defun common-lisp-indent-function-1 (indent-point state)
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256 (let ((normal-indent (current-column)))
257 ;; Walk up list levels until we see something
258 ;; which does special things with subforms.
259 (let ((depth 0)
260 ;; Path describes the position of point in terms of
eb8c3be9 261 ;; list-structure with respect to containing lists.
8497a297 262 ;; `foo' has a path of (0 3 1) in `((a b c (d foo) f) g)'.
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263 (path ())
264 ;; set non-nil when somebody works out the indentation to use
265 calculated
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266 ;; If non-nil, this is an indentation to use
267 ;; if nothing else specifies it more firmly.
268 tentative-calculated
269 (last-point indent-point)
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270 ;; the position of the open-paren of the innermost containing list
271 (containing-form-start (elt state 1))
272 ;; the column of the above
273 sexp-column)
274 ;; Move to start of innermost containing list
275 (goto-char containing-form-start)
276 (setq sexp-column (current-column))
59e0f579 277
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278 ;; Look over successively less-deep containing forms
279 (while (and (not calculated)
280 (< depth lisp-indent-maximum-backtracking))
281 (let ((containing-sexp (point)))
282 (forward-char 1)
283 (parse-partial-sexp (point) indent-point 1 t)
284 ;; Move to the car of the relevant containing form
f620e5e2 285 (let (tem function method tentative-defun)
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286 (if (not (looking-at "\\sw\\|\\s_"))
287 ;; This form doesn't seem to start with a symbol
288 (setq function nil method nil)
289 (setq tem (point))
290 (forward-sexp 1)
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291 (setq function (downcase (buffer-substring-no-properties
292 tem (point))))
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293 (goto-char tem)
294 (setq tem (intern-soft function)
295 method (get tem 'common-lisp-indent-function))
296 (cond ((and (null method)
297 (string-match ":[^:]+" function))
298 ;; The pleblisp package feature
299 (setq function (substring function
300 (1+ (match-beginning 0)))
301 method (get (intern-soft function)
302 'common-lisp-indent-function)))
303 ((and (null method))
304 ;; backwards compatibility
305 (setq method (get tem 'lisp-indent-function)))))
306 (let ((n 0))
307 ;; How far into the containing form is the current form?
308 (if (< (point) indent-point)
309 (while (condition-case ()
310 (progn
311 (forward-sexp 1)
312 (if (>= (point) indent-point)
313 nil
314 (parse-partial-sexp (point)
315 indent-point 1 t)
316 (setq n (1+ n))
317 t))
318 (error nil))))
319 (setq path (cons n path)))
320
321 ;; backwards compatibility.
322 (cond ((null function))
323 ((null method)
bbf1ae49 324 (when (null (cdr path))
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325 ;; (package prefix was stripped off above)
326 (cond ((string-match "\\`def"
327 function)
328 (setq tentative-defun t))
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329 ((string-match
330 (eval-when-compile
331 (concat "\\`\\("
332 (regexp-opt '("with" "without" "do"))
333 "\\)-"))
334 function)
f620e5e2 335 (setq method '(&lambda &body))))))
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336 ;; backwards compatibility. Bletch.
337 ((eq method 'defun)
bbf1ae49 338 (setq method lisp-indent-defun-method)))
745bc783 339
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340 (cond ((and (or (eq (char-after (1- containing-sexp)) ?\')
341 (and (not lisp-backquote-indentation)
342 (eq (char-after (1- containing-sexp)) ?\`)))
893d4ef0 343 (not (eq (char-after (- containing-sexp 2)) ?\#)))
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344 ;; No indentation for "'(...)" elements
345 (setq calculated (1+ sexp-column)))
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346 ((or (eq (char-after (1- containing-sexp)) ?\,)
347 (and (eq (char-after (1- containing-sexp)) ?\@)
348 (eq (char-after (- containing-sexp 2)) ?\,)))
349 ;; ",(...)" or ",@(...)"
350 (setq calculated normal-indent))
893d4ef0 351 ((eq (char-after (1- containing-sexp)) ?\#)
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352 ;; "#(...)"
353 (setq calculated (1+ sexp-column)))
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354 ((null method)
355 ;; If this looks like a call to a `def...' form,
356 ;; think about indenting it as one, but do it
357 ;; tentatively for cases like
358 ;; (flet ((defunp ()
359 ;; nil)))
360 ;; Set both normal-indent and tentative-calculated.
361 ;; The latter ensures this value gets used
362 ;; if there are no relevant containing constructs.
363 ;; The former ensures this value gets used
364 ;; if there is a relevant containing construct
365 ;; but we are nested within the structure levels
366 ;; that it specifies indentation for.
367 (if tentative-defun
368 (setq tentative-calculated
369 (common-lisp-indent-call-method
370 function lisp-indent-defun-method
371 path state indent-point
372 sexp-column normal-indent)
373 normal-indent tentative-calculated)))
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374 ((integerp method)
375 ;; convenient top-level hack.
376 ;; (also compatible with lisp-indent-function)
377 ;; The number specifies how many `distinguished'
378 ;; forms there are before the body starts
379 ;; Equivalent to (4 4 ... &body)
380 (setq calculated (cond ((cdr path)
381 normal-indent)
382 ((<= (car path) method)
383 ;; `distinguished' form
384 (list (+ sexp-column 4)
385 containing-form-start))
386 ((= (car path) (1+ method))
387 ;; first body form.
388 (+ sexp-column lisp-body-indent))
389 (t
390 ;; other body form
391 normal-indent))))
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392 (t
393 (setq calculated
394 (common-lisp-indent-call-method
395 function method path state indent-point
396 sexp-column normal-indent)))))
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397 (goto-char containing-sexp)
398 (setq last-point containing-sexp)
bbf1ae49 399 (unless calculated
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400 (condition-case ()
401 (progn (backward-up-list 1)
402 (setq depth (1+ depth)))
403 (error (setq depth lisp-indent-maximum-backtracking))))))
404 (or calculated tentative-calculated))))
405
406
407(defun common-lisp-indent-call-method (function method path state indent-point
408 sexp-column normal-indent)
409 (let ((lisp-indent-error-function function))
410 (if (symbolp method)
411 (funcall method
412 path state indent-point
413 sexp-column normal-indent)
414 (lisp-indent-259 method path state indent-point
415 sexp-column normal-indent))))
745bc783 416
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417;; Dynamically bound in common-lisp-indent-call-method.
418(defvar lisp-indent-error-function)
419
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420(defun lisp-indent-report-bad-format (m)
421 (error "%s has a badly-formed %s property: %s"
422 ;; Love those free variable references!!
bf92b5a4 423 lisp-indent-error-function 'common-lisp-indent-function m))
745bc783 424
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425
426;; Lambda-list indentation is now done in LISP-INDENT-LAMBDA-LIST.
427;; See also `lisp-lambda-list-keyword-alignment',
428;; `lisp-lambda-list-keyword-parameter-alignment' and
429;; `lisp-lambda-list-keyword-parameter-indentation' -- dvl
430
431(defvar lisp-indent-lambda-list-keywords-regexp
432 "&\\(\
433optional\\|rest\\|key\\|allow-other-keys\\|aux\\|whole\\|body\\|environment\
434\\)\\([ \t]\\|$\\)"
435 "Regular expression matching lambda-list keywords.")
436
437(defun lisp-indent-lambda-list
438 (indent-point sexp-column containing-form-start)
439 (let (limit)
440 (cond ((save-excursion
441 (goto-char indent-point)
442 (beginning-of-line)
443 (skip-chars-forward " \t")
444 (setq limit (point))
445 (looking-at lisp-indent-lambda-list-keywords-regexp))
446 ;; We're facing a lambda-list keyword.
447 (if lisp-lambda-list-keyword-alignment
448 ;; Align to the first keyword if any, or to the beginning of
449 ;; the lambda-list.
450 (save-excursion
451 (goto-char containing-form-start)
452 (save-match-data
453 (if (re-search-forward
454 lisp-indent-lambda-list-keywords-regexp
455 limit t)
456 (progn
457 (goto-char (match-beginning 0))
458 (current-column))
459 (1+ sexp-column))))
460 ;; Align to the beginning of the lambda-list.
461 (1+ sexp-column)))
462 (t
463 ;; Otherwise, align to the first argument of the last lambda-list
464 ;; keyword, the keyword itself, or the beginning of the
465 ;; lambda-list.
466 (save-excursion
467 (goto-char indent-point)
468 (forward-line -1)
469 (end-of-line)
470 (save-match-data
471 (if (re-search-backward lisp-indent-lambda-list-keywords-regexp
472 containing-form-start t)
473 (let* ((keyword-posn
474 (progn
475 (goto-char (match-beginning 0))
476 (current-column)))
477 (indented-keyword-posn
478 (+ keyword-posn
479 lisp-lambda-list-keyword-parameter-indentation)))
480 (goto-char (match-end 0))
481 (skip-chars-forward " \t")
482 (if (eolp)
483 indented-keyword-posn
484 (if lisp-lambda-list-keyword-parameter-alignment
485 (current-column)
486 indented-keyword-posn)))
487 (1+ sexp-column))))))))
488
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489;; Blame the crufty control structure on dynamic scoping
490;; -- not on me!
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491(defun lisp-indent-259
492 (method path state indent-point sexp-column normal-indent)
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493 (catch 'exit
494 (let ((p path)
495 (containing-form-start (elt state 1))
496 n tem tail)
497 ;; Isn't tail-recursion wonderful?
498 (while p
499 ;; This while loop is for destructuring.
500 ;; p is set to (cdr p) each iteration.
501 (if (not (consp method)) (lisp-indent-report-bad-format method))
502 (setq n (1- (car p))
503 p (cdr p)
504 tail nil)
505 (while n
506 ;; This while loop is for advancing along a method
507 ;; until the relevant (possibly &rest/&body) pattern
508 ;; is reached.
509 ;; n is set to (1- n) and method to (cdr method)
510 ;; each iteration.
511 (setq tem (car method))
512
513 (or (eq tem 'nil) ;default indentation
5d80cc9c 514 (eq tem '&lambda) ;lambda list
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515 (and (eq tem '&body) (null (cdr method)))
516 (and (eq tem '&rest)
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517 (consp (cdr method))
518 (null (cddr method)))
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519 (integerp tem) ;explicit indentation specified
520 (and (consp tem) ;destructuring
521 (eq (car tem) '&whole)
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522 (or (symbolp (cadr tem))
523 (integerp (cadr tem))))
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524 (and (symbolp tem) ;a function to call to do the work.
525 (null (cdr method)))
526 (lisp-indent-report-bad-format method))
527
528 (cond ((and tail (not (consp tem)))
529 ;; indent tail of &rest in same way as first elt of rest
530 (throw 'exit normal-indent))
531 ((eq tem '&body)
532 ;; &body means (&rest <lisp-body-indent>)
533 (throw 'exit
534 (if (and (= n 0) ;first body form
535 (null p)) ;not in subforms
536 (+ sexp-column
537 lisp-body-indent)
538 normal-indent)))
539 ((eq tem '&rest)
540 ;; this pattern holds for all remaining forms
541 (setq tail (> n 0)
542 n 0
543 method (cdr method)))
544 ((> n 0)
545 ;; try next element of pattern
546 (setq n (1- n)
547 method (cdr method))
548 (if (< n 0)
549 ;; Too few elements in pattern.
550 (throw 'exit normal-indent)))
551 ((eq tem 'nil)
6655e16d
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552 (throw 'exit (if (consp normal-indent)
553 normal-indent
554 (list normal-indent containing-form-start))))
bec9dc7b
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555 ((eq tem '&lambda)
556 (throw 'exit
557 (cond ((null p)
558 (list (+ sexp-column 4) containing-form-start))
559 ((null (cdr p))
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560 ;; Indentation within a lambda-list. -- dvl
561 (list (lisp-indent-lambda-list
562 indent-point
563 sexp-column
564 containing-form-start)
565 containing-form-start))
566 (t
567 normal-indent))))
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568 ((integerp tem)
569 (throw 'exit
570 (if (null p) ;not in subforms
571 (list (+ sexp-column tem) containing-form-start)
572 normal-indent)))
573 ((symbolp tem) ;a function to call
574 (throw 'exit
575 (funcall tem path state indent-point
576 sexp-column normal-indent)))
577 (t
578 ;; must be a destructing frob
579 (if (not (null p))
580 ;; descend
bbf1ae49 581 (setq method (cddr tem)
745bc783 582 n nil)
bbf1ae49 583 (setq tem (cadr tem))
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584 (throw 'exit
585 (cond (tail
586 normal-indent)
587 ((eq tem 'nil)
588 (list normal-indent
589 containing-form-start))
590 ((integerp tem)
591 (list (+ sexp-column tem)
592 containing-form-start))
593 (t
594 (funcall tem path state indent-point
595 sexp-column normal-indent))))))))))))
596\f
597(defun lisp-indent-tagbody (path state indent-point sexp-column normal-indent)
598 (if (not (null (cdr path)))
599 normal-indent
600 (save-excursion
601 (goto-char indent-point)
602 (beginning-of-line)
603 (skip-chars-forward " \t")
604 (list (cond ((looking-at "\\sw\\|\\s_")
605 ;; a tagbody tag
606 (+ sexp-column lisp-tag-indentation))
607 ((integerp lisp-tag-body-indentation)
608 (+ sexp-column lisp-tag-body-indentation))
609 ((eq lisp-tag-body-indentation 't)
610 (condition-case ()
611 (progn (backward-sexp 1) (current-column))
612 (error (1+ sexp-column))))
613 (t (+ sexp-column lisp-body-indent)))
614; (cond ((integerp lisp-tag-body-indentation)
615; (+ sexp-column lisp-tag-body-indentation))
616; ((eq lisp-tag-body-indentation 't)
617; normal-indent)
618; (t
619; (+ sexp-column lisp-body-indent)))
620 (elt state 1)
621 ))))
622
623(defun lisp-indent-do (path state indent-point sexp-column normal-indent)
624 (if (>= (car path) 3)
625 (let ((lisp-tag-body-indentation lisp-body-indent))
626 (funcall (function lisp-indent-tagbody)
5d80cc9c 627 path state indent-point sexp-column normal-indent))
745bc783 628 (funcall (function lisp-indent-259)
5d80cc9c
SS
629 '((&whole nil &rest
630 ;; the following causes weird indentation
631 ;;(&whole 1 1 2 nil)
632 )
633 (&whole nil &rest 1))
634 path state indent-point sexp-column normal-indent)))
745bc783 635
59e0f579 636
8497a297
DV
637;; LISP-INDENT-DEFMETHOD now supports the presence of more than one method
638;; qualifier and indents the method's lambda list properly. -- dvl
639(defun lisp-indent-defmethod
640 (path state indent-point sexp-column normal-indent)
641 (lisp-indent-259
642 (let ((nqual 0))
643 (if (and (>= (car path) 3)
644 (save-excursion
645 (beginning-of-defun)
646 (forward-char 1)
647 (forward-sexp 2)
648 (skip-chars-forward " \t\n")
649 (while (looking-at "\\sw\\|\\s_")
650 (incf nqual)
651 (forward-sexp)
652 (skip-chars-forward " \t\n"))
653 (> nqual 0)))
654 (append '(4) (make-list nqual 4) '(&lambda &body))
655 (get 'defun 'common-lisp-indent-function)))
656 path state indent-point sexp-column normal-indent))
ec69d5ec
GM
657
658
745bc783
JB
659(defun lisp-indent-function-lambda-hack (path state indent-point
660 sexp-column normal-indent)
661 ;; indent (function (lambda () <newline> <body-forms>)) kludgily.
662 (if (or (cdr path) ; wtf?
663 (> (car path) 3))
664 ;; line up under previous body form
665 normal-indent
666 ;; line up under function rather than under lambda in order to
667 ;; conserve horizontal space. (Which is what #' is for.)
668 (condition-case ()
669 (save-excursion
670 (backward-up-list 2)
671 (forward-char 1)
672 (if (looking-at "\\(lisp:+\\)?function\\(\\Sw\\|\\S_\\)")
673 (+ lisp-body-indent -1 (current-column))
674 (+ sexp-column lisp-body-indent)))
675 (error (+ sexp-column lisp-body-indent)))))
676
59e0f579 677
745bc783
JB
678\f
679(let ((l '((block 1)
5d80cc9c 680 (case (4 &rest (&whole 2 &rest 1)))
c66cd0ff
GM
681 (ccase . case)
682 (ecase . case)
683 (typecase . case)
684 (etypecase . case)
685 (ctypecase . case)
5d80cc9c
SS
686 (catch 1)
687 (cond (&rest (&whole 2 &rest 1)))
688 (defvar (4 2 2))
5e9e032a 689 (defclass (6 4 (&whole 2 &rest 1) (&whole 2 &rest 1)))
5d80cc9c 690 (defconstant . defvar)
2ac6f2c8 691 (defcustom (4 2 2 2))
5d80cc9c 692 (defparameter . defvar)
5e9e032a
SS
693 (defconst . defcustom)
694 (define-condition . defclass)
b6f053c6 695 (define-modify-macro (4 &lambda &body))
5d80cc9c
SS
696 (defsetf (4 &lambda 4 &body))
697 (defun (4 &lambda &body))
8497a297 698 (defgeneric (4 &lambda &body))
5d80cc9c
SS
699 (define-setf-method . defun)
700 (define-setf-expander . defun)
c66cd0ff
GM
701 (defmacro . defun)
702 (defsubst . defun)
703 (deftype . defun)
ec69d5ec 704 (defmethod lisp-indent-defmethod)
5d80cc9c
SS
705 (defpackage (4 2))
706 (defstruct ((&whole 4 &rest (&whole 2 &rest 1))
707 &rest (&whole 2 &rest 1)))
708 (destructuring-bind
709 ((&whole 6 &rest 1) 4 &body))
710 (do lisp-indent-do)
711 (do* . do)
712 (dolist ((&whole 4 2 1) &body))
713 (dotimes . dolist)
714 (eval-when 1)
715 (flet ((&whole 4 &rest (&whole 1 &lambda &body)) &body))
716 (labels . flet)
717 (macrolet . flet)
c66cd0ff
GM
718 (generic-flet . flet)
719 (generic-labels . flet)
bbf1ae49 720 (handler-case (4 &rest (&whole 2 &lambda &body)))
09a4d958 721 (restart-case . handler-case)
5d80cc9c
SS
722 ;; `else-body' style
723 (if (nil nil &body))
724 ;; single-else style (then and else equally indented)
725 (if (&rest nil))
726 (lambda (&lambda &rest lisp-indent-function-lambda-hack))
727 (let ((&whole 4 &rest (&whole 1 1 2)) &body))
728 (let* . let)
729 (compiler-let . let) ;barf
c66cd0ff
GM
730 (handler-bind . let)
731 (restart-bind . let)
5d80cc9c 732 (locally 1)
59e0f579 733 ;(loop lisp-indent-loop)
2180ea97 734 (:method (&lambda &body)) ; in `defgeneric'
5e9e032a
SS
735 (multiple-value-bind ((&whole 6 &rest 1) 4 &body))
736 (multiple-value-call (4 &body))
5d80cc9c
SS
737 (multiple-value-prog1 1)
738 (multiple-value-setq (4 2))
739 (multiple-value-setf . multiple-value-setq)
7dd21017 740 (pprint-logical-block (4 2))
5d80cc9c
SS
741 (print-unreadable-object ((&whole 4 1 &rest 1) &body))
742 ;; Combines the worst features of BLOCK, LET and TAGBODY
743 (prog (&lambda &rest lisp-indent-tagbody))
744 (prog* . prog)
745 (prog1 1)
746 (prog2 2)
747 (progn 0)
748 (progv (4 4 &body))
749 (return 0)
750 (return-from (nil &body))
10b97bf7 751 (symbol-macrolet . let)
5d80cc9c
SS
752 (tagbody lisp-indent-tagbody)
753 (throw 1)
754 (unless 1)
755 (unwind-protect (5 &body))
f0d527fc 756 (when 1)
e7c8c428
SS
757 (with-accessors . multiple-value-bind)
758 (with-condition-restarts . multiple-value-bind)
ef9dd188 759 (with-compilation-unit (&lambda &body))
44c705d4 760 (with-output-to-string (4 2))
5e9e032a 761 (with-slots . multiple-value-bind)
f0d527fc 762 (with-standard-io-syntax (2)))))
e7c8c428
SS
763 (dolist (el l)
764 (put (car el) 'common-lisp-indent-function
765 (if (symbolp (cdr el))
766 (get (cdr el) 'common-lisp-indent-function)
767 (car (cdr el))))))
745bc783
JB
768
769\f
770;(defun foo (x)
771; (tagbody
772; foo
773; (bar)
774; baz
775; (when (losing)
776; (with-big-loser
777; (yow)
778; ((lambda ()
779; foo)
780; big)))
781; (flet ((foo (bar baz zap)
782; (zip))
783; (zot ()
784; quux))
785; (do ()
786; ((lose)
787; (foo 1))
788; (quux)
789; foo
790; (lose))
791; (cond ((x)
792; (win 1 2
793; (foo)))
794; (t
795; (lose
796; 3))))))
5d80cc9c 797
745bc783
JB
798
799;(put 'while 'common-lisp-indent-function 1)
800;(put 'defwrapper'common-lisp-indent-function ...)
801;(put 'def 'common-lisp-indent-function ...)
802;(put 'defflavor 'common-lisp-indent-function ...)
803;(put 'defsubst 'common-lisp-indent-function ...)
804
805;(put 'with-restart 'common-lisp-indent-function '((1 4 ((* 1))) (2 &body)))
806;(put 'restart-case 'common-lisp-indent-function '((1 4) (* 2 ((0 1) (* 1)))))
968880c4 807;(put 'define-condition 'common-lisp-indent-function '((1 6) (2 6 ((&whole 1))) (3 4 ((&whole 1))) (4 &body)))
745bc783
JB
808;(put 'with-condition-handler 'common-lisp-indent-function '((1 4 ((* 1))) (2 &body)))
809;(put 'condition-case 'common-lisp-indent-function '((1 4) (* 2 ((0 1) (1 3) (2 &body)))))
968880c4
DL
810;(put 'defclass 'common-lisp-indent-function '((&whole 2 &rest (&whole 2 &rest 1) &rest (&whole 2 &rest 1)))
811;(put 'defgeneric 'common-lisp-indent-function 'defun)
745bc783 812
36f84c37
GM
813(provide 'cl-indent)
814
c0274f38 815;;; cl-indent.el ends here