* Can this function be written better?
@ 2010-12-06 18:29 Nathan Neff
2010-12-06 21:53 ` Bernt Hansen
0 siblings, 1 reply; 3+ messages in thread
From: Nathan Neff @ 2010-12-06 18:29 UTC (permalink / raw)
To: emacs-orgmode
I'd like to be able to easily toggle the showing/hiding of CLOSED clock
items in the agenda.
I have a function that does exactly that. My Lisp is terrible (I bet that's
never been said before :-) and I want to try to improve it.
Any suggestions how to improve/refactor the following function?
(defun njn/agenda-toggle-show-closed()
"Toggle whether closed clock thingies are shown in the agenda"
(interactive)
(if (eq njn/org-agenda-show-closed 't)
(progn (setq org-agenda-log-mode-items (quote (clock)))
(setq njn/org-agenda-show-closed nil)
(message "NOT Showing closed clock entries in agenda"))
(progn (setq org-agenda-log-mode-items (quote (closed clock)))
(setq njn/org-agenda-show-closed 't)
(message "Showing closed clock entries in agenda"))
))
Thanks,
--Nate
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Can this function be written better?
2010-12-06 18:29 Can this function be written better? Nathan Neff
@ 2010-12-06 21:53 ` Bernt Hansen
2010-12-07 3:00 ` Nathan Neff
0 siblings, 1 reply; 3+ messages in thread
From: Bernt Hansen @ 2010-12-06 21:53 UTC (permalink / raw)
To: Nathan Neff; +Cc: emacs-orgmode
Nathan Neff <nathan.neff@gmail.com> writes:
> I'd like to be able to easily toggle the showing/hiding of CLOSED clock
> items in the agenda.
>
> I have a function that does exactly that. My Lisp is terrible (I bet that's
> never been said before :-) and I want to try to improve it.
>
> Any suggestions how to improve/refactor the following function?
>
> (defun njn/agenda-toggle-show-closed()
> "Toggle whether closed clock thingies are shown in the agenda"
> (interactive)
> (if (eq njn/org-agenda-show-closed 't)
> (progn (setq org-agenda-log-mode-items (quote (clock)))
> (setq njn/org-agenda-show-closed nil)
> (message "NOT Showing closed clock entries in agenda"))
> (progn (setq org-agenda-log-mode-items (quote (closed clock)))
> (setq njn/org-agenda-show-closed 't)
> (message "Showing closed clock entries in agenda"))
> ))
>
Hi Nate,
I would probably write it like this: (but I'm no emacs-lisp expert
either)
(defun njn/agenda-toggle-show-closed()
"Toggle whether closed clock thingies are shown in the agenda"
(interactive)
(setq njn/org-agenda-show-closed (not njn/org-agenda-show-closed))
(setq org-agenda-log-mode-items (if njn/org-agenda-show-closed
(quote (closed clock))
(quote (clock))))
(message "%sShowing closed clock entries in agenda" (if njn/org-agenda-show-closed "" "NOT ")))
You have a bug in your version - the test and report is backwards.
When njn/org-agenda-show-closed is t you don't show closed items and
when it's nil you do.
- You don't need to check for equality with 't (and you don't need to
quote t)
- everything non-nil is true
- you can just check that directly in the (if ... )
My version basically does this:
1. toggle the boolean njn/org-agenda-shot-closed
2. set org-agenda-log-mode-items based on the boolean
3. report the value
HTH,
Bernt
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Can this function be written better?
2010-12-06 21:53 ` Bernt Hansen
@ 2010-12-07 3:00 ` Nathan Neff
0 siblings, 0 replies; 3+ messages in thread
From: Nathan Neff @ 2010-12-07 3:00 UTC (permalink / raw)
To: Bernt Hansen; +Cc: emacs-orgmode
> Hi Nate,
>
> I would probably write it like this: (but I'm no emacs-lisp expert
> either)
>
> (defun njn/agenda-toggle-show-closed()
> "Toggle whether closed clock thingies are shown in the agenda"
> (interactive)
> (setq njn/org-agenda-show-closed (not njn/org-agenda-show-closed))
> (setq org-agenda-log-mode-items (if njn/org-agenda-show-closed
> (quote (closed clock))
> (quote (clock))))
> (message "%sShowing closed clock entries in agenda" (if njn/org-agenda-show-closed "" "NOT ")))
>
> You have a bug in your version - the test and report is backwards.
> When njn/org-agenda-show-closed is t you don't show closed items and
> when it's nil you do.
>
> - You don't need to check for equality with 't (and you don't need to
> quote t)
> - everything non-nil is true
> - you can just check that directly in the (if ... )
>
> My version basically does this:
> 1. toggle the boolean njn/org-agenda-shot-closed
> 2. set org-agenda-log-mode-items based on the boolean
> 3. report the value
Thanks Bernt -- hehe -- I never really noticed the bug.
I'd like to see if there's a way to avoid having a variable at all --
something like this (In functional language / Lisp speak, that is)
If org-agenda-log-mode-items contains (closed) then
org-agenda-log-mode-items = org-agenda-log-mode-items - (closed)
else
org-agenda-log-mode-items = org-agenda-log-mode-items + (closed)
end if
I'll try something on my own if I have 15-20 minutes to work on it tonight --
Thanks for the bugfix and this cool line:
(message "%sShowing closed clock entries in agenda" (if
njn/org-agenda-show-closed "" "NOT ")
--Nate
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-12-06 18:29 Can this function be written better? Nathan Neff
2010-12-06 21:53 ` Bernt Hansen
2010-12-07 3:00 ` Nathan Neff
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