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Re: [O] Get total number of items
From: |
Thorsten Jolitz |
Subject: |
Re: [O] Get total number of items |
Date: |
Sun, 22 Jun 2014 09:59:45 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Chris Henderson <address@hidden> writes:
> Is there a way to get the total number of items at the parent level? I
> have lots of ** under a * and I'd like to see the number at a glance.
that was asked before, here is what I came up with [using (apply '+ ...)
instead of (eval (append (list '+ ...) ...)) would even be better]:
> Here is a generalised form:
>
> #+begin_src emacs-lisp
> (defun count-org-items (&optional level operator match scope skip)
> "Print a counting of outline items."
> (interactive)
> (let ((headline-level (or level 1)) ; 1-8
> (op (or operator '=))) ; '>= '<= '> '<
> (save-excursion
> (message "Counting of level%s%d outline items (match=%s, scope=%s,
> skip=%s): %d"
> op headline-level match scope skip
> (eval (append (list '+)
> (org-map-entries
> `(lambda () (if (,op (org-outline-level)
> ,headline-level) 1 0))
> match scope skip)))))))
> #+end_src
>
> usage:
>
> ,----------------------------------------
> | (count-org-items 2 '<= "WAITING" 'file)
> `----------------------------------------
>
> result:
>
> ,------------------------------------------------------------------------------
> | "Counting of level<=2 outline items (match=WAITING, scope=file,
> | skip=nil): 3"
> `------------------------------------------------------------------------------
>
> see C-h f org-map-entries for more info, its very powerful. Use it
> with M-: (count-org-items ...) or write a more sophisticated
> (interactive) spec.
--
cheers,
Thorsten