Merge from emacs--rel--22
[bpt/emacs.git] / lisp / emacs-lisp / cl.el
1 ;;; cl.el --- Common Lisp extensions for Emacs
2
3 ;; Copyright (C) 1993, 2001, 2002, 2003, 2004, 2005,
4 ;; 2006, 2007, 2008 Free Software Foundation, Inc.
5
6 ;; Author: Dave Gillespie <daveg@synaptics.com>
7 ;; Version: 2.02
8 ;; Keywords: extensions
9
10 ;; This file is part of GNU Emacs.
11
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 3, or (at your option)
15 ;; any later version.
16
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
21
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
26
27 ;;; Commentary:
28
29 ;; These are extensions to Emacs Lisp that provide a degree of
30 ;; Common Lisp compatibility, beyond what is already built-in
31 ;; in Emacs Lisp.
32 ;;
33 ;; This package was written by Dave Gillespie; it is a complete
34 ;; rewrite of Cesar Quiroz's original cl.el package of December 1986.
35 ;;
36 ;; Bug reports, comments, and suggestions are welcome!
37
38 ;; This file contains the portions of the Common Lisp extensions
39 ;; package which should always be present.
40
41
42 ;;; Future notes:
43
44 ;; Once Emacs 19 becomes standard, many things in this package which are
45 ;; messy for reasons of compatibility can be greatly simplified. For now,
46 ;; I prefer to maintain one unified version.
47
48
49 ;;; Change Log:
50
51 ;; Version 2.02 (30 Jul 93):
52 ;; * Added "cl-compat.el" file, extra compatibility with old package.
53 ;; * Added `lexical-let' and `lexical-let*'.
54 ;; * Added `define-modify-macro', `callf', and `callf2'.
55 ;; * Added `ignore-errors'.
56 ;; * Changed `(setf (nthcdr N PLACE) X)' to work when N is zero.
57 ;; * Merged `*gentemp-counter*' into `*gensym-counter*'.
58 ;; * Extended `subseq' to allow negative START and END like `substring'.
59 ;; * Added `in-ref', `across-ref', `elements of-ref' loop clauses.
60 ;; * Added `concat', `vconcat' loop clauses.
61 ;; * Cleaned up a number of compiler warnings.
62
63 ;; Version 2.01 (7 Jul 93):
64 ;; * Added support for FSF version of Emacs 19.
65 ;; * Added `add-hook' for Emacs 18 users.
66 ;; * Added `defsubst*' and `symbol-macrolet'.
67 ;; * Added `maplist', `mapc', `mapl', `mapcan', `mapcon'.
68 ;; * Added `map', `concatenate', `reduce', `merge'.
69 ;; * Added `revappend', `nreconc', `tailp', `tree-equal'.
70 ;; * Added `assert', `check-type', `typecase', `typep', and `deftype'.
71 ;; * Added destructuring and `&environment' support to `defmacro*'.
72 ;; * Added destructuring to `loop', and added the following clauses:
73 ;; `elements', `frames', `overlays', `intervals', `buffers', `key-seqs'.
74 ;; * Renamed `delete' to `delete*' and `remove' to `remove*'.
75 ;; * Completed support for all keywords in `remove*', `substitute', etc.
76 ;; * Added `most-positive-float' and company.
77 ;; * Fixed hash tables to work with latest Lucid Emacs.
78 ;; * `proclaim' forms are no longer compile-time-evaluating; use `declaim'.
79 ;; * Syntax for `warn' declarations has changed.
80 ;; * Improved implementation of `random*'.
81 ;; * Moved most sequence functions to a new file, cl-seq.el.
82 ;; * Moved `eval-when' into cl-macs.el.
83 ;; * Moved `pushnew' and `adjoin' to cl.el for most common cases.
84 ;; * Moved `provide' forms down to ends of files.
85 ;; * Changed expansion of `pop' to something that compiles to better code.
86 ;; * Changed so that no patch is required for Emacs 19 byte compiler.
87 ;; * Made more things dependent on `optimize' declarations.
88 ;; * Added a partial implementation of struct print functions.
89 ;; * Miscellaneous minor changes.
90
91 ;; Version 2.00:
92 ;; * First public release of this package.
93
94
95 ;;; Code:
96
97 (defvar cl-optimize-speed 1)
98 (defvar cl-optimize-safety 1)
99
100
101 ;;;###autoload
102 (defvar custom-print-functions nil
103 "This is a list of functions that format user objects for printing.
104 Each function is called in turn with three arguments: the object, the
105 stream, and the print level (currently ignored). If it is able to
106 print the object it returns true; otherwise it returns nil and the
107 printer proceeds to the next function on the list.
108
109 This variable is not used at present, but it is defined in hopes that
110 a future Emacs interpreter will be able to use it.")
111
112 (defun cl-unload-function ()
113 "Stop unloading of the Common Lisp extensions."
114 (message "Cannot unload the feature `cl'")
115 ;; stop standard unloading!
116 t)
117
118 ;;; Generalized variables.
119 ;; These macros are defined here so that they
120 ;; can safely be used in .emacs files.
121
122 (defmacro incf (place &optional x)
123 "Increment PLACE by X (1 by default).
124 PLACE may be a symbol, or any generalized variable allowed by `setf'.
125 The return value is the incremented value of PLACE."
126 (if (symbolp place)
127 (list 'setq place (if x (list '+ place x) (list '1+ place)))
128 (list 'callf '+ place (or x 1))))
129
130 (defmacro decf (place &optional x)
131 "Decrement PLACE by X (1 by default).
132 PLACE may be a symbol, or any generalized variable allowed by `setf'.
133 The return value is the decremented value of PLACE."
134 (if (symbolp place)
135 (list 'setq place (if x (list '- place x) (list '1- place)))
136 (list 'callf '- place (or x 1))))
137
138 (defmacro pop (place)
139 "Remove and return the head of the list stored in PLACE.
140 Analogous to (prog1 (car PLACE) (setf PLACE (cdr PLACE))), though more
141 careful about evaluating each argument only once and in the right order.
142 PLACE may be a symbol, or any generalized variable allowed by `setf'."
143 (if (symbolp place)
144 (list 'car (list 'prog1 place (list 'setq place (list 'cdr place))))
145 (cl-do-pop place)))
146
147 (defmacro push (x place)
148 "Insert X at the head of the list stored in PLACE.
149 Analogous to (setf PLACE (cons X PLACE)), though more careful about
150 evaluating each argument only once and in the right order. PLACE may
151 be a symbol, or any generalized variable allowed by `setf'."
152 (if (symbolp place) (list 'setq place (list 'cons x place))
153 (list 'callf2 'cons x place)))
154
155 (defmacro pushnew (x place &rest keys)
156 "(pushnew X PLACE): insert X at the head of the list if not already there.
157 Like (push X PLACE), except that the list is unmodified if X is `eql' to
158 an element already on the list.
159 \nKeywords supported: :test :test-not :key
160 \n(fn X PLACE [KEYWORD VALUE]...)"
161 (if (symbolp place)
162 (if (null keys)
163 `(let ((x ,x))
164 (if (memql x ,place) ,place (setq ,place (cons x ,place))))
165 (list 'setq place (list* 'adjoin x place keys)))
166 (list* 'callf2 'adjoin x place keys)))
167
168 (defun cl-set-elt (seq n val)
169 (if (listp seq) (setcar (nthcdr n seq) val) (aset seq n val)))
170
171 (defun cl-set-nthcdr (n list x)
172 (if (<= n 0) x (setcdr (nthcdr (1- n) list) x) list))
173
174 (defun cl-set-buffer-substring (start end val)
175 (save-excursion (delete-region start end)
176 (goto-char start)
177 (insert val)
178 val))
179
180 (defun cl-set-substring (str start end val)
181 (if end (if (< end 0) (incf end (length str)))
182 (setq end (length str)))
183 (if (< start 0) (incf start (length str)))
184 (concat (and (> start 0) (substring str 0 start))
185 val
186 (and (< end (length str)) (substring str end))))
187
188
189 ;;; Control structures.
190
191 ;; These macros are so simple and so often-used that it's better to have
192 ;; them all the time than to load them from cl-macs.el.
193
194 (defun cl-map-extents (&rest cl-args)
195 (apply 'cl-map-overlays cl-args))
196
197
198 ;;; Blocks and exits.
199
200 (defalias 'cl-block-wrapper 'identity)
201 (defalias 'cl-block-throw 'throw)
202
203
204 ;;; Multiple values.
205 ;; True multiple values are not supported, or even
206 ;; simulated. Instead, multiple-value-bind and friends simply expect
207 ;; the target form to return the values as a list.
208
209 (defsubst values (&rest values)
210 "Return multiple values, Common Lisp style.
211 The arguments of `values' are the values
212 that the containing function should return."
213 values)
214
215 (defsubst values-list (list)
216 "Return multiple values, Common Lisp style, taken from a list.
217 LIST specifies the list of values
218 that the containing function should return."
219 list)
220
221 (defsubst multiple-value-list (expression)
222 "Return a list of the multiple values produced by EXPRESSION.
223 This handles multiple values in Common Lisp style, but it does not
224 work right when EXPRESSION calls an ordinary Emacs Lisp function
225 that returns just one value."
226 expression)
227
228 (defsubst multiple-value-apply (function expression)
229 "Evaluate EXPRESSION to get multiple values and apply FUNCTION to them.
230 This handles multiple values in Common Lisp style, but it does not work
231 right when EXPRESSION calls an ordinary Emacs Lisp function that returns just
232 one value."
233 (apply function expression))
234
235 (defalias 'multiple-value-call 'apply
236 "Apply FUNCTION to ARGUMENTS, taking multiple values into account.
237 This implementation only handles the case where there is only one argument.")
238
239 (defsubst nth-value (n expression)
240 "Evaluate EXPRESSION to get multiple values and return the Nth one.
241 This handles multiple values in Common Lisp style, but it does not work
242 right when EXPRESSION calls an ordinary Emacs Lisp function that returns just
243 one value."
244 (nth n expression))
245
246 ;;; Macros.
247
248 (defvar cl-macro-environment nil)
249 (defvar cl-old-macroexpand (prog1 (symbol-function 'macroexpand)
250 (defalias 'macroexpand 'cl-macroexpand)))
251
252 (defun cl-macroexpand (cl-macro &optional cl-env)
253 "Return result of expanding macros at top level of FORM.
254 If FORM is not a macro call, it is returned unchanged.
255 Otherwise, the macro is expanded and the expansion is considered
256 in place of FORM. When a non-macro-call results, it is returned.
257
258 The second optional arg ENVIRONMENT specifies an environment of macro
259 definitions to shadow the loaded ones for use in file byte-compilation.
260 \n(fn FORM &optional ENVIRONMENT)"
261 (let ((cl-macro-environment cl-env))
262 (while (progn (setq cl-macro (funcall cl-old-macroexpand cl-macro cl-env))
263 (and (symbolp cl-macro)
264 (cdr (assq (symbol-name cl-macro) cl-env))))
265 (setq cl-macro (cadr (assq (symbol-name cl-macro) cl-env))))
266 cl-macro))
267
268
269 ;;; Declarations.
270
271 (defvar cl-compiling-file nil)
272 (defun cl-compiling-file ()
273 (or cl-compiling-file
274 (and (boundp 'outbuffer) (bufferp (symbol-value 'outbuffer))
275 (equal (buffer-name (symbol-value 'outbuffer))
276 " *Compiler Output*"))))
277
278 (defvar cl-proclaims-deferred nil)
279
280 (defun proclaim (spec)
281 (if (fboundp 'cl-do-proclaim) (cl-do-proclaim spec t)
282 (push spec cl-proclaims-deferred))
283 nil)
284
285 (defmacro declaim (&rest specs)
286 (let ((body (mapcar (function (lambda (x) (list 'proclaim (list 'quote x))))
287 specs)))
288 (if (cl-compiling-file) (list* 'eval-when '(compile load eval) body)
289 (cons 'progn body)))) ; avoid loading cl-macs.el for eval-when
290
291
292 ;;; Symbols.
293
294 (defun cl-random-time ()
295 (let* ((time (copy-sequence (current-time-string))) (i (length time)) (v 0))
296 (while (>= (decf i) 0) (setq v (+ (* v 3) (aref time i))))
297 v))
298
299 (defvar *gensym-counter* (* (logand (cl-random-time) 1023) 100))
300
301
302 ;;; Numbers.
303
304 (defun floatp-safe (object)
305 "Return t if OBJECT is a floating point number.
306 On Emacs versions that lack floating-point support, this function
307 always returns nil."
308 (and (numberp object) (not (integerp object))))
309
310 (defun plusp (number)
311 "Return t if NUMBER is positive."
312 (> number 0))
313
314 (defun minusp (number)
315 "Return t if NUMBER is negative."
316 (< number 0))
317
318 (defun oddp (integer)
319 "Return t if INTEGER is odd."
320 (eq (logand integer 1) 1))
321
322 (defun evenp (integer)
323 "Return t if INTEGER is even."
324 (eq (logand integer 1) 0))
325
326 (defvar *random-state* (vector 'cl-random-state-tag -1 30 (cl-random-time)))
327
328 ;; The following are actually set by cl-float-limits.
329 (defconst most-positive-float nil)
330 (defconst most-negative-float nil)
331 (defconst least-positive-float nil)
332 (defconst least-negative-float nil)
333 (defconst least-positive-normalized-float nil)
334 (defconst least-negative-normalized-float nil)
335 (defconst float-epsilon nil)
336 (defconst float-negative-epsilon nil)
337
338
339 ;;; Sequence functions.
340
341 (defalias 'copy-seq 'copy-sequence)
342
343 (defun mapcar* (cl-func cl-x &rest cl-rest)
344 "Apply FUNCTION to each element of SEQ, and make a list of the results.
345 If there are several SEQs, FUNCTION is called with that many arguments,
346 and mapping stops as soon as the shortest list runs out. With just one
347 SEQ, this is like `mapcar'. With several, it is like the Common Lisp
348 `mapcar' function extended to arbitrary sequence types.
349 \n(fn FUNCTION SEQ...)"
350 (if cl-rest
351 (if (or (cdr cl-rest) (nlistp cl-x) (nlistp (car cl-rest)))
352 (cl-mapcar-many cl-func (cons cl-x cl-rest))
353 (let ((cl-res nil) (cl-y (car cl-rest)))
354 (while (and cl-x cl-y)
355 (push (funcall cl-func (pop cl-x) (pop cl-y)) cl-res))
356 (nreverse cl-res)))
357 (mapcar cl-func cl-x)))
358
359 (defalias 'svref 'aref)
360
361 ;;; List functions.
362
363 (defalias 'first 'car)
364 (defalias 'second 'cadr)
365 (defalias 'rest 'cdr)
366 (defalias 'endp 'null)
367
368 (defun third (x)
369 "Return the third element of the list X."
370 (car (cdr (cdr x))))
371
372 (defun fourth (x)
373 "Return the fourth element of the list X."
374 (nth 3 x))
375
376 (defun fifth (x)
377 "Return the fifth element of the list X."
378 (nth 4 x))
379
380 (defun sixth (x)
381 "Return the sixth element of the list X."
382 (nth 5 x))
383
384 (defun seventh (x)
385 "Return the seventh element of the list X."
386 (nth 6 x))
387
388 (defun eighth (x)
389 "Return the eighth element of the list X."
390 (nth 7 x))
391
392 (defun ninth (x)
393 "Return the ninth element of the list X."
394 (nth 8 x))
395
396 (defun tenth (x)
397 "Return the tenth element of the list X."
398 (nth 9 x))
399
400 (defun caaar (x)
401 "Return the `car' of the `car' of the `car' of X."
402 (car (car (car x))))
403
404 (defun caadr (x)
405 "Return the `car' of the `car' of the `cdr' of X."
406 (car (car (cdr x))))
407
408 (defun cadar (x)
409 "Return the `car' of the `cdr' of the `car' of X."
410 (car (cdr (car x))))
411
412 (defun caddr (x)
413 "Return the `car' of the `cdr' of the `cdr' of X."
414 (car (cdr (cdr x))))
415
416 (defun cdaar (x)
417 "Return the `cdr' of the `car' of the `car' of X."
418 (cdr (car (car x))))
419
420 (defun cdadr (x)
421 "Return the `cdr' of the `car' of the `cdr' of X."
422 (cdr (car (cdr x))))
423
424 (defun cddar (x)
425 "Return the `cdr' of the `cdr' of the `car' of X."
426 (cdr (cdr (car x))))
427
428 (defun cdddr (x)
429 "Return the `cdr' of the `cdr' of the `cdr' of X."
430 (cdr (cdr (cdr x))))
431
432 (defun caaaar (x)
433 "Return the `car' of the `car' of the `car' of the `car' of X."
434 (car (car (car (car x)))))
435
436 (defun caaadr (x)
437 "Return the `car' of the `car' of the `car' of the `cdr' of X."
438 (car (car (car (cdr x)))))
439
440 (defun caadar (x)
441 "Return the `car' of the `car' of the `cdr' of the `car' of X."
442 (car (car (cdr (car x)))))
443
444 (defun caaddr (x)
445 "Return the `car' of the `car' of the `cdr' of the `cdr' of X."
446 (car (car (cdr (cdr x)))))
447
448 (defun cadaar (x)
449 "Return the `car' of the `cdr' of the `car' of the `car' of X."
450 (car (cdr (car (car x)))))
451
452 (defun cadadr (x)
453 "Return the `car' of the `cdr' of the `car' of the `cdr' of X."
454 (car (cdr (car (cdr x)))))
455
456 (defun caddar (x)
457 "Return the `car' of the `cdr' of the `cdr' of the `car' of X."
458 (car (cdr (cdr (car x)))))
459
460 (defun cadddr (x)
461 "Return the `car' of the `cdr' of the `cdr' of the `cdr' of X."
462 (car (cdr (cdr (cdr x)))))
463
464 (defun cdaaar (x)
465 "Return the `cdr' of the `car' of the `car' of the `car' of X."
466 (cdr (car (car (car x)))))
467
468 (defun cdaadr (x)
469 "Return the `cdr' of the `car' of the `car' of the `cdr' of X."
470 (cdr (car (car (cdr x)))))
471
472 (defun cdadar (x)
473 "Return the `cdr' of the `car' of the `cdr' of the `car' of X."
474 (cdr (car (cdr (car x)))))
475
476 (defun cdaddr (x)
477 "Return the `cdr' of the `car' of the `cdr' of the `cdr' of X."
478 (cdr (car (cdr (cdr x)))))
479
480 (defun cddaar (x)
481 "Return the `cdr' of the `cdr' of the `car' of the `car' of X."
482 (cdr (cdr (car (car x)))))
483
484 (defun cddadr (x)
485 "Return the `cdr' of the `cdr' of the `car' of the `cdr' of X."
486 (cdr (cdr (car (cdr x)))))
487
488 (defun cdddar (x)
489 "Return the `cdr' of the `cdr' of the `cdr' of the `car' of X."
490 (cdr (cdr (cdr (car x)))))
491
492 (defun cddddr (x)
493 "Return the `cdr' of the `cdr' of the `cdr' of the `cdr' of X."
494 (cdr (cdr (cdr (cdr x)))))
495
496 ;;(defun last* (x &optional n)
497 ;; "Returns the last link in the list LIST.
498 ;;With optional argument N, returns Nth-to-last link (default 1)."
499 ;; (if n
500 ;; (let ((m 0) (p x))
501 ;; (while (consp p) (incf m) (pop p))
502 ;; (if (<= n 0) p
503 ;; (if (< n m) (nthcdr (- m n) x) x)))
504 ;; (while (consp (cdr x)) (pop x))
505 ;; x))
506
507 (defun list* (arg &rest rest) ; See compiler macro in cl-macs.el
508 "Return a new list with specified ARGs as elements, consed to last ARG.
509 Thus, `(list* A B C D)' is equivalent to `(nconc (list A B C) D)', or to
510 `(cons A (cons B (cons C D)))'.
511 \n(fn ARG...)"
512 (cond ((not rest) arg)
513 ((not (cdr rest)) (cons arg (car rest)))
514 (t (let* ((n (length rest))
515 (copy (copy-sequence rest))
516 (last (nthcdr (- n 2) copy)))
517 (setcdr last (car (cdr last)))
518 (cons arg copy)))))
519
520 (defun ldiff (list sublist)
521 "Return a copy of LIST with the tail SUBLIST removed."
522 (let ((res nil))
523 (while (and (consp list) (not (eq list sublist)))
524 (push (pop list) res))
525 (nreverse res)))
526
527 (defun copy-list (list)
528 "Return a copy of LIST, which may be a dotted list.
529 The elements of LIST are not copied, just the list structure itself."
530 (if (consp list)
531 (let ((res nil))
532 (while (consp list) (push (pop list) res))
533 (prog1 (nreverse res) (setcdr res list)))
534 (car list)))
535
536 (defun cl-maclisp-member (item list)
537 (while (and list (not (equal item (car list)))) (setq list (cdr list)))
538 list)
539
540 (defalias 'cl-member 'memq) ; for compatibility with old CL package
541 (defalias 'cl-floor 'floor*)
542 (defalias 'cl-ceiling 'ceiling*)
543 (defalias 'cl-truncate 'truncate*)
544 (defalias 'cl-round 'round*)
545 (defalias 'cl-mod 'mod*)
546
547 (defun adjoin (cl-item cl-list &rest cl-keys) ; See compiler macro in cl-macs
548 "Return ITEM consed onto the front of LIST only if it's not already there.
549 Otherwise, return LIST unmodified.
550 \nKeywords supported: :test :test-not :key
551 \n(fn ITEM LIST [KEYWORD VALUE]...)"
552 (cond ((or (equal cl-keys '(:test eq))
553 (and (null cl-keys) (not (numberp cl-item))))
554 (if (memq cl-item cl-list) cl-list (cons cl-item cl-list)))
555 ((or (equal cl-keys '(:test equal)) (null cl-keys))
556 (if (member cl-item cl-list) cl-list (cons cl-item cl-list)))
557 (t (apply 'cl-adjoin cl-item cl-list cl-keys))))
558
559 (defun subst (cl-new cl-old cl-tree &rest cl-keys)
560 "Substitute NEW for OLD everywhere in TREE (non-destructively).
561 Return a copy of TREE with all elements `eql' to OLD replaced by NEW.
562 \nKeywords supported: :test :test-not :key
563 \n(fn NEW OLD TREE [KEYWORD VALUE]...)"
564 (if (or cl-keys (and (numberp cl-old) (not (integerp cl-old))))
565 (apply 'sublis (list (cons cl-old cl-new)) cl-tree cl-keys)
566 (cl-do-subst cl-new cl-old cl-tree)))
567
568 (defun cl-do-subst (cl-new cl-old cl-tree)
569 (cond ((eq cl-tree cl-old) cl-new)
570 ((consp cl-tree)
571 (let ((a (cl-do-subst cl-new cl-old (car cl-tree)))
572 (d (cl-do-subst cl-new cl-old (cdr cl-tree))))
573 (if (and (eq a (car cl-tree)) (eq d (cdr cl-tree)))
574 cl-tree (cons a d))))
575 (t cl-tree)))
576
577 (defun acons (key value alist)
578 "Add KEY and VALUE to ALIST.
579 Return a new list with (cons KEY VALUE) as car and ALIST as cdr."
580 (cons (cons key value) alist))
581
582 (defun pairlis (keys values &optional alist)
583 "Make an alist from KEYS and VALUES.
584 Return a new alist composed by associating KEYS to corresponding VALUES;
585 the process stops as soon as KEYS or VALUES run out.
586 If ALIST is non-nil, the new pairs are prepended to it."
587 (nconc (mapcar* 'cons keys values) alist))
588
589
590 ;;; Miscellaneous.
591
592 ;; Define data for indentation and edebug.
593 (dolist (entry
594 '(((defun* defmacro*) 2)
595 ((function*) nil
596 (&or symbolp ([&optional 'macro] 'lambda (&rest sexp) &rest form)))
597 ((eval-when) 1 (sexp &rest form))
598 ((declare) nil (&rest sexp))
599 ((the) 1 (sexp &rest form))
600 ((case ecase typecase etypecase) 1 (form &rest (sexp &rest form)))
601 ((block return-from) 1 (sexp &rest form))
602 ((return) nil (&optional form))
603 ((do do*) 2 ((&rest &or symbolp (symbolp &optional form form))
604 (form &rest form)
605 &rest form))
606 ((do-symbols) 1 ((symbolp form &optional form form) &rest form))
607 ((do-all-symbols) 1 ((symbolp form &optional form) &rest form))
608 ((psetq setf psetf) nil edebug-setq-form)
609 ((progv) 2 (&rest form))
610 ((flet labels macrolet) 1
611 ((&rest (sexp sexp &rest form)) &rest form))
612 ((symbol-macrolet lexical-let lexical-let*) 1
613 ((&rest &or symbolp (symbolp form)) &rest form))
614 ((multiple-value-bind) 2 ((&rest symbolp) &rest form))
615 ((multiple-value-setq) 1 ((&rest symbolp) &rest form))
616 ((incf decf remf pushnew shiftf rotatef) nil (&rest form))
617 ((letf letf*) 1 ((&rest (&rest form)) &rest form))
618 ((callf destructuring-bind) 2 (sexp form &rest form))
619 ((callf2) 3 (sexp form form &rest form))
620 ((loop) nil (&rest &or symbolp form))
621 ((ignore-errors) 0 (&rest form))))
622 (dolist (func (car entry))
623 (put func 'lisp-indent-function (nth 1 entry))
624 (put func 'lisp-indent-hook (nth 1 entry))
625 (or (get func 'edebug-form-spec)
626 (put func 'edebug-form-spec (nth 2 entry)))))
627
628 ;; Autoload the other portions of the package.
629 ;; We want to replace the basic versions of dolist, dotimes, declare below.
630 (fmakunbound 'dolist)
631 (fmakunbound 'dotimes)
632 (fmakunbound 'declare)
633 (load "cl-loaddefs" nil 'quiet)
634
635 ;; This goes here so that cl-macs can find it if it loads right now.
636 (provide 'cl-19) ; usage: (require 'cl-19 "cl")
637
638 ;; Things to do after byte-compiler is loaded.
639 ;; As a side effect, we cause cl-macs to be loaded when compiling, so
640 ;; that the compiler-macros defined there will be present.
641
642 (defvar cl-hacked-flag nil)
643 (defun cl-hack-byte-compiler ()
644 (if (and (not cl-hacked-flag) (fboundp 'byte-compile-file-form))
645 (progn
646 (setq cl-hacked-flag t) ; Do it first, to prevent recursion.
647 (cl-compile-time-init)))) ; In cl-macs.el.
648
649 ;; Try it now in case the compiler has already been loaded.
650 (cl-hack-byte-compiler)
651
652 ;; Also make a hook in case compiler is loaded after this file.
653 (add-hook 'bytecomp-load-hook 'cl-hack-byte-compiler)
654
655
656 ;; The following ensures that packages which expect the old-style cl.el
657 ;; will be happy with this one.
658
659 (provide 'cl)
660
661 (run-hooks 'cl-load-hook)
662
663 ;; Local variables:
664 ;; byte-compile-dynamic: t
665 ;; byte-compile-warnings: (not cl-functions)
666 ;; End:
667
668 ;; arch-tag: 5f07fa74-f153-4524-9303-21f5be125851
669 ;;; cl.el ends here