GNU bug report logs - #22961
The read function does not support a lambda argument

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#22961: closed (The read function does not support a lambda
 argument)
Date: Wed, 09 Mar 2016 18:47:01 +0000

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Your message dated Wed, 09 Mar 2016 19:46:41 +0100
with message-id <87y49ro5f2.fsf <at> linux-m68k.org>
and subject line Re: bug#22961: The read function does not support a lambda argument
has caused the debbugs.gnu.org bug report #22961,
regarding The read function does not support a lambda argument
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Mihai Călin Bazon <mihai.bazon <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: The read function does not support a lambda argument
Date: Wed, 9 Mar 2016 10:37:28 +0200

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Example, I eval this in the scratch buffer (with lexical-binding set true):

    (read (let ((str "TEST")
                (pos 0)
                (prev nil))
            (lambda (ch)
              (cond
                (ch (push ch prev))
                (prev (pop prev))
                ((< pos (length str))
                 (prog1 (aref str pos)
                   (setq pos (1+ pos))))))))

According to the docs [1] an input stream can be a function.  I would
expect the above to return the symbol TEST, but instead I get an error
("end of file during parsing").

[1]
http://www.gnu.org/software/emacs/manual/html_node/elisp/Input-Streams.html#Input-Streams

-- 
Mihai Bazon,
http://lisperator.net/

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From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Mihai Călin Bazon <mihai.bazon <at> gmail.com>
Cc: 22961-done <at> debbugs.gnu.org
Subject: Re: bug#22961: The read function does not support a lambda argument
Date: Wed, 09 Mar 2016 19:46:41 +0100

Should be fixed in commit 711ca36.

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
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