From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Subject: Re: org-block-regexp questions
Date: Thu, 22 Jan 2015 18:48:27 +0100
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In-Reply-To: <87twzjircy.fsf@wmi.amu.edu.pl> (Marcin Borkowski's message of
	"Thu, 22 Jan 2015 01:36:13 +0100")
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To: Marcin Borkowski <mbork@wmi.amu.edu.pl>
Cc: Org-Mode mailing list <emacs-orgmode@gnu.org>

Hello,

Marcin Borkowski <mbork@wmi.amu.edu.pl> writes:

> I'm studying org-block-regexp.  One thing that bugs me is this part:
>
> #\\+begin_?
>
> It suggests to me that the underscore after "begin" might be optional;
> but a quick experiment with the exporter shows that this is not the
> case.

This is the case for dynamic blocks

  (info "(org) Dynamic blocks")

> Next, this part:
>
> \\([^ \n]+\\)
>
> would suggest that TAB is a valid part of the name of the block.
> Strange, isn't it?

It is. "\\(\\S-+\\)" would be more appropriate I think (this is also
what is used in "org-element.el").

> Finally, the rationale behind
>
> \\(\\([^\n]+\\)\\)?
>
> escapes me completely.  What's the use of groups nested like this?

This looks like a plain bug, a minor one, tho. Before fixing it, Someone
has to make sure it doesn't break matching groups somewhere.


Regards,

-- 
Nicolas Goaziou