blob: ac990561c6c53cef75d432853dac424f8b938083 (
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
|
(in-package #:gtwiwtg.anaphora)
(defmacro afor (generator &body body)
"Anaphoric FOR. Binds the values produced by GENERATOR to the variable IT.
Example:
> (afor (times 3) (print it))
0
1
2
"
`(for it ,expr ,@body))
(defmacro afold (init generator update)
"Anaphoric FOLD. Binds the values produced by GENERATOR to IT, and
binds the accumulating variable to ACC.
Example:
> (afold 0 (times 10) (+ acc it))
45
"
`(fold (acc ,init) (it ,generator) ,update))
|
