From: Samuel Wales <samologist@gmail.com>
To: emacs-orgmode@gnu.org
Subject: org-entry-get bugs etc.
Date: Wed, 13 Jan 2010 16:09:16 -0700 [thread overview]
Message-ID: <20524da71001131509r72741172k95c54abf80776b32@mail.gmail.com> (raw)
I ran into a bug in which org-entry-get returns the wrong
value. It brought up some other points.
1) org-entry-get of "TODO" returns the wrong value when
there is a lower case version of a todo kw on a
headline. Example:
* neowhen
I have "NEOWHEN" as a todo kw.
What it returns is "neowhen". What I think it should
return is the value for a blank state. Currently, this
value is nil.
2) This is the 5th bug that I have reported of this type.
In all 5 cases, the lower case version of a todo kw at
the beginning of a headline caused incorrect behavior.
This suggests separate matches. At least as a
possibility.
This in turn suggests to me that it might be possible
to refactor org. By this I mean create a wrapper to do
the matching and call that wrapper in all of those
places. I wish I could help here, but I cannot.
3) For the user, I think it is more convenient to use
org-entry-get for metadata than to parse manually.
This is a useful function.
4) Perhaps Lisp keywords can be allowed instead of strings
for speed. For example,
(org-entry-get point-or-marker :todo)
Instead of:
(org-entry-get point-or-marker "TODO")
I don't know if it would be significant.
5) This isn't directly related, but the value for a blank
state is currently nil, not "". I have not thought
about this deeply, but as nil is not a string, it is a
special case (i.e. the only state that is not a
string). In my experience, special cases in return
values cause complicated code, because calling code
needs to special-case the special case instead of
merely composing, funcalling, or applying. Perhaps
it's too late to change that. Or perhaps there is a
special reason to use nil. But seems worth mentioning
just in case it triggers an idea.
Thanks.
Samuel
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next reply other threads:[~2010-01-13 23:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-13 23:09 Samuel Wales [this message]
2010-01-14 18:42 ` org-entry-get bugs etc Carsten Dominik
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