bug#16587: 24.3.50; max-specpdl-size exceeded + crash with gnus (shr).

[Katsumi Yamaoka <yamaoka@jpl.org>]

Nicolas Richard wrote:
> I do this :
> 1. run emacs -Q

> 2. evaluate the following lines (which happen to be in my ~/.emacs) :
> (setq gnus-select-method (quote (nntp "eu.news.astraweb.com")))
> (setq gnus-secondary-select-methods (quote ((nntp "news.gmane.org") (nntp "news.zoo-logique.org"))))

> 3. M-x gnus

> 4. navigate to Rotem Yaari's initial report for bug #16577 in nntp+news.gmane.org:gmane.emacs.bugs

> 5. hit RET

> I get the error:
> shr-descend: Variable binding depth exceeds max-specpdl-size

This seems to be due to a mailer (Airmail?) that sends a broken
html part, not an Emacs bug.  Here is the `Recent input' section
of the bug report embedded in the html part:

<br>Recent input:
<br>e s t <return> C-d <down> <down> <down> <down> <down>  
<br><down> <down> <down> <down> <down> <down> <down> <down>  
<br><down> <down> <down> <down> <down> <down> <down> <down>  
<br><up> <up> <up> <up> <up> <up> <up> <up> <up> <return>  
<br><up> <return> <down> <down> <down> <down> <down> <down>  
<br><return> <down> <down> <down> <down> <down> <down>  
<br><down> <down> <down> <down> <down> <down> <down> <down>  
<br><down> <down> <up> <up> <up> <up> <up> <up> <up> <up>  
[...]

Those keystrokes should have been quoted as: &lt;key&gt;