I've been trying to sort out the icalendar export bits. I've noticed the docstring of (org-icalendar-exclude-tags) states that the tag can be set with the ICAL_EXCLUDE_TAGS keyword. (it doesn't work). However in the code of (org-export-define-derived-backend), the :exclude-tags of :options-alist uses "ICALENDAR_EXCLUDE_TAGS". The does work as a file level keyword.
In an org file: #+ICAL_EXCLUDE_TAGS: NOICAL * Headline to not export :NOICAL: (org-icalendar-combine-agenda-files) any dates in the headline are exported to the ics file. But instead: #+ICALENDAR_EXCLUDE_TAGS: NOICAL * Headline to not export :NOICAL: (org-icalendar-combine-agenda-files) does not export any dates in the headline to the ics file. Could the docstring be updated to say "ICALENDAR_EXCLUDE_TAGS"? It may save confusion for the next person looking at this. Thanks. Oh, and I realize I'm not on the HEAD, but ~/src/org-mode (stable) $ git diff origin/HEAD -- lisp/ox-icalendar.el ~/src/org-mode (stable) $ Emacs : GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.16.4) of 2015-06-28 on trouble, modified by Debian Package: Org-mode version 8.3.2 (release_8.3.2-1-g115c4b @ /home/james/src/org-mode/lisp/) Sent with my mu4e
