Subject: bug#15405: 24.3; #[] freezes emacs

From: Eli Zaretskii <[email-masked]>
Date: Thu, 19 Sep 2013 10:00:47 +0300

> Date: Wed, 18 Sep 2013 19:20:35 -0400
> From: Barry OReilly <[email-masked]>
> Cc: Leo Liu <[email-masked]>, [email-masked], [email-masked]
> 
> The eq function seems pretty harmless, so perhaps it's worth looking
> at the reader that makes a Lisp_Object out of #[]. Where would I find
> that?

In lread.c:readevalloop, I guess.  Specifically, anything that begins
with "#[" is handled in read1 around line 2595.