Re: Strange behavior of macro

[Andreas Schwab]

"Herbert Euler" <address@hidden> writes:

>>From: Andreas Schwab <address@hidden>
>>To: "Herbert Euler" <address@hidden>
>>CC: address@hidden
>>Subject: Re: Strange behavior of macro
>>Date: Tue, 30 May 2006 12:23:49 +0200
>>
>>"Herbert Euler" <address@hidden> writes:
>>
>> > Is the following in Emacs a expected behavior of macro?
>> >
>> >    (defmacro m1 (v)
>> >      (let ((len (length (eval v))))
>> >        `(quote ,len)))
>> >         => m1
>>[...]
>> >    (m1 v)
>> >         => error: (wrong-type-argument sequencep v)
>>
>>See (elisp)Eval During Expansion.
>
> OK, so it's an accepted behavior.  Btw, in the test of GNU clisp,
> it's safe to write such a macro:

Emacs Lisp is using dynamic binding, not lexical binding.

Andreas.

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Andreas Schwab, SuSE Labs, address@hidden
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