;;;; -- WHN 20000127
(declaim (maybe-inline
- tree-equal list-length nth %setnth nthcdr last make-list append
- copy-list copy-alist copy-tree revappend nconc nreconc butlast
- nbutlast ldiff member member-if member-if-not tailp adjoin union
+ tree-equal nth %setnth nthcdr last make-list append
+ nconc member member-if member-if-not tailp adjoin union
nunion intersection nintersection set-difference nset-difference
- set-exclusive-or nset-exclusive-or subsetp acons pairlis assoc
+ set-exclusive-or nset-exclusive-or subsetp acons assoc
assoc-if assoc-if-not rassoc rassoc-if rassoc-if-not subst subst-if
subst-if-not nsubst nsubst-if nsubst-if-not sublis nsublis))
list))))
(defun ldiff (list object)
- "Returns a new list, whose elements are those of List that appear before
- Object. If Object is not a tail of List, a copy of List is returned.
- List must be a proper list or a dotted list."
+ "Return a new list, whose elements are those of LIST that appear before
+ OBJECT. If OBJECT is not a tail of LIST, a copy of LIST is returned.
+ LIST must be a proper list or a dotted list."
(do* ((list list (cdr list))
(result (list ()))
(splice result))
(defun rplaca (x y)
#!+sb-doc
- "Changes the car of x to y and returns the new x."
+ "Change the CAR of X to Y and return the new X."
(rplaca x y))
(defun rplacd (x y)
#!+sb-doc
- "Changes the cdr of x to y and returns the new x."
+ "Change the CDR of X to Y and return the new X."
(rplacd x y))
;;; The following are for use by SETF.
(defun %rplacd (x val) (rplacd x val) val)
+;;; Set the Nth element of LIST to NEWVAL.
(defun %setnth (n list newval)
(declare (type index n))
- #!+sb-doc
- "Sets the Nth element of List (zero based) to Newval."
(do ((count n (1- count))
(list list (cdr list)))
((endp list)
(defun identity (thing)
#!+sb-doc
- "Returns what was passed to it."
+ "This function simply returns what was passed to it."
thing)
(defun complement (function)
#!+sb-doc
- "Builds a new function that returns T whenever FUNCTION returns NIL and
+ "Return a new function that returns T whenever FUNCTION returns NIL and
NIL whenever FUNCTION returns non-NIL."
(lambda (&optional (arg0 nil arg0-p) (arg1 nil arg1-p) (arg2 nil arg2-p)
&rest more-args)
(defun assoc-if-not (predicate alist &key key)
#!+sb-doc
- "Returns the first cons in alist whose car does not satisfiy the Predicate.
- If key is supplied, apply it to the car of each cons before testing."
+ "Returns the first cons in ALIST whose car does not satisfy the PREDICATE.
+ If KEY is supplied, apply it to the car of each cons before testing."
(if key
(assoc-guts (not (funcall predicate (funcall key (caar alist)))))
(assoc-guts (not (funcall predicate (caar alist))))))
(defun rassoc (item alist &key key test test-not)
(declare (list alist))
#!+sb-doc
- "Returns the cons in alist whose cdr is equal (by a given test or EQL) to
- the Item."
+ "Returns the cons in ALIST whose cdr is equal (by a given test or EQL) to
+ the ITEM."
(cond (test
(if key
(assoc-guts (funcall test item (funcall key (cdar alist))))