# [plt-scheme] elementary macro question

Hi all,
I review basics of scheme using Dybvig's book (The
Scheme Programming Language), and noticed that people
here discussing macros. On page 60, the author gives
an incorrect version of *and macro*:
(define-syntax and
(syntax-rules ()
((_) #t)
((_ e1 e2 e3 ...)
(if e1 (and e2 e3 ...) #f))))
Then he goes on to explain why this is wrong. Namely,
it's claimed in the book that this macro expands as
follows in the case we call (and (not (= x 0)) (/ 1
x)):
(if (not (= x 0)) (and (/ 1 x)) #f)
....
etc.
I don't understand how this can happen, as there is no
pattern taking exactly one parameter: so how can (and
(/ 1 x)) not trigger an error? Namely, I believe the
author that this macro is incorrect, but the reason he
gives... :/ ?? Most probably I am missing something
very basic and elementary, but...
Could someone please help me, what am I missing here?
Thank you!
Nusret
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