From mboxrd@z Thu Jan  1 00:00:00 1970
From: Glenn Morris <rgm@gnu.org>
Subject: Re: org-export raises stringp nil error
Date: Thu, 07 Mar 2013 16:14:51 -0500
Message-ID: <ccwqtiq5dg.fsf@fencepost.gnu.org>
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In-Reply-To: <87ip539io1.fsf@nautilus.nautilus> (Lele Gaifax's message of
	"Thu, 07 Mar 2013 19:19:42 +0100")
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Cc: Lele Gaifax <lele@metapensiero.it>, emacs-devel@gnu.org
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Assuming this is a recent regression, then if anyone from Org wants this
fixed in Emacs 24.3, they should investigate this very quickly and
suggest the _minimum_ change.

See also the possibly related, unanswered
http://lists.gnu.org/archive/html/emacs-orgmode/2013-03/msg00028.html

Lele Gaifax wrote:

> Using current emacs-snapshot[1], trying to export even the following
> very simple file:
>
>   # -*- mode: org; coding: utf-8 -*-
>
>   * hi
>
>     http://www.gnu.org/
>
> to HTML results in this error:
>
>   org-export-protect-sub-super: Wrong type argument: stringp, nil
>
> with the following traceback:
>
>   string-match("\\([^\\\\]\\)\\([_^]\\)" nil)
>   org-export-protect-sub-super(nil)
>   org-export-normalize-links()
>   org-export-preprocess-string(#("# -*- mode: org; coding: utf-8 -*-\n\n*=
 hi\n\n  http://www.gnu.org/\n" 0 34 (fontified t font-lock-fontified t fac=
e font-lock-comment-face) 34 36 (fontified t) 36 38 (fontified t face org-l=
evel-1) 38 40 (fontified t face org-level-1) 40 44 (fontified t) 44 62 (fon=
tified t org-no-flyspell t mouse-face highlight face org-link keymap (keyma=
p (follow-link . mouse-face) (mouse-3 . org-find-file-at-mouse) (mouse-2 . =
org-open-at-mouse))) 62 63 (fontified t org-no-flyspell t mouse-face highli=
ght face org-link keymap (keymap (follow-link . mouse-face) (mouse-3 . org-=
find-file-at-mouse) (mouse-2 . org-open-at-mouse)) rear-nonsticky (mouse-fa=
ce highlight keymap invisible intangible help-echo org-linked-text htmlize-=
link)) 63 64 (fontified t)) :emph-multiline t :for-backend html :skip-befor=
e-1st-heading nil :drawers nil :todo-keywords t :tasks t :tags not-in-toc :=
priority nil :footnotes t :timestamps t :archived-trees headline :select-ta=
gs ("export") :exclude-tags ("noexport") :add-text nil :LaTeX-fragments t)
>   org-export-as-html(nil)
>   call-interactively(org-export-as-html)
>   org-export(nil)
>   call-interactively(org-export nil nil)
>   command-execute(org-export)
>
> If this isn't already known/fixed, should I report it as a bug? And
> eventually, on Emacs itself or on org-mode?
>
> thanks in advance,
> bye, lele.
>
> [1] GNU Emacs 24.3.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.4.2) of 2013=
-03-04 on dex, modified by Debian