From mboxrd@z Thu Jan  1 00:00:00 1970
From: James Harkins <jamshark70@gmail.com>
Subject: "ignoreheading" for non-beamer export
Date: Thu, 25 Jul 2013 17:42:00 -0400
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To: orgmode <emacs-orgmode@gnu.org>

Hi, I found an inventive solution by Suvayu to discard headlines from export here [1], but the 8.0+ solution throws an error in my environment.

(defun sa-ignore-headline (contents backend info)
  "Ignore headlines with tag `ignoreheading'."
  (when (and (org-export-derived-backend-p backend 'latex 'html 'ascii)
          (string-match "\\`.*ignoreheading.*\n"
                (downcase headline)))
    (replace-match "" nil nil headline)))

(add-to-list 'org-export-filter-headline-functions 'sa-ignore-headline)

--> string-match: Symbol's value as variable is void: headline

It seems it should actually be:

(defun sa-ignore-headline (contents backend info)
  "Ignore headlines with tag `ignoreheading'."
  (when (and (org-export-derived-backend-p backend 'latex 'html 'ascii)
          (string-match "\\`.*ignoreheading.*\n"
                (downcase contents)))
    (replace-match "" nil nil contents)))

(add-to-list 'org-export-filter-headline-functions 'sa-ignore-headline)

I'm not allowed to reply to the answer on stackexchange, so I'm posting here.

Thanks.
hjh

[1] http://stackoverflow.com/questions/10295177/is-there-an-equivalent-of-org-modes-b-ignoreheading-for-non-beamer-documents