blob: 4c13d19120ada1972d85d4aebe0cb4fd3db2c760 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
(in-package #:def)
(defun take-until (pred list)
"Returns two values: FRONT BACK.
FRONT contains the first N members X of LIST for which (PRED X) is NIL.
BACK contains everything after the members of FRONT.
(EQUALP LIST
(MULTIPLE-VALUE-BIND (FRONT BACK) (TAKE-UNTIL PRED LIST)
(APPEND FRONT BACK))
Is always T."
(loop :for (x . back) :on list
:for fx? := (funcall pred x)
:until fx?
:collect x :into front
:finally (return (values front (if fx? (cons x back) nil)))))
(defun partition (pred list)
"Returns two list values: YES NO.
YES is everything for which PRED is T, NO is everything else."
(loop :for e :in list
:when (funcall pred e)
:collect e :into yes
:else
:collect e :into no
:finally (return (values yes no))))
(defun good-muffed-var-name-p (name &key (muffer "*"))
(and (symbolp name)
(string= muffer name :end2 (length muffer))
(string= muffer name :start2 (- (length (symbol-name name))
(length muffer)))))
(defun lambda-opt-p (x)
(find x '(cl:&optional cl:&key cl:&aux cl:&allow-other-keys cl:&rest)
:test #'eq))
|
