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Re: [O] org table calc and lisp for hh:mm timetable
From: |
Eric Schulte |
Subject: |
Re: [O] org table calc and lisp for hh:mm timetable |
Date: |
Wed, 23 Mar 2011 19:18:43 -0600 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
Christian Moe <address@hidden> writes:
> Hi,
>
> If we're not just looking for a neat workaround for some special cases
> anymore, but looking at making org-tables aware of time-like strings
> by default, a better strategy than to convert them into integers might
> be to translate them into Calc time format and back again.
>
> After all, Calc and hence the Org spreadsheet already handles time
> arithmetic perfectly well, it's just that it would be nice to have
> this functionality with the extra option to enter and display times as
> =12:45= rather than =12@ 45'= or =12h 45m=.
>
I did not realize that calc (and hence Org) already supported operating
on time values. The =7@ 30'= format does indeed work well for time
table formulas (although the =12h 5m= format does not), e.g.,
| 1@ 20' | 2 | 0@ 40' 0." |
| 2@ 5' | 3 | 0@ 41' 40." |
#+TBLFM: $3=$1/$2
Maybe all that is needed is explicit mention of this syntax somewhere in
the table section of the Org-mode manual.
The only remaining reason to support a %d:%d time format is that it is
what I (and I expect most users) would first think of to represent time,
and supporting such a format would allow time calculation in a table to
"just work" -- meaning users could likely manipulate time without having
to first look in the manual for the appropriate Calc format.
However as Carsten mentioned such an automatic translation of e.g.,
=7:20= to =7@ 20'= would be a bit bold, and (as mentioned elsewhere) it
would result in having to make some denomination decisions, namely does
=7:20= convert to =7@ 20'= or =7' 20"=.
For now I've posted my `with-time' macro up to Worg.
Cheers -- Eric
- Re: [O] org table calc and lisp for hh:mm timetable, (continued)
- Re: [O] org table calc and lisp for hh:mm timetable, Christian Moe, 2011/03/15
- Re: [O] org table calc and lisp for hh:mm timetable, Martin Halder, 2011/03/16
- Re: [O] org table calc and lisp for hh:mm timetable, Bastien, 2011/03/17
- Re: [O] org table calc and lisp for hh:mm timetable, Eric Schulte, 2011/03/20
- Re: [O] org table calc and lisp for hh:mm timetable, Eric S Fraga, 2011/03/20
- Re: [O] org table calc and lisp for hh:mm timetable, Eric Schulte, 2011/03/20
- Re: [O] org table calc and lisp for hh:mm timetable, Christian Moe, 2011/03/20
- Re: [O] org table calc and lisp for hh:mm timetable, Eric Schulte, 2011/03/20
- Re: [O] org table calc and lisp for hh:mm timetable, Eric Schulte, 2011/03/22
- Re: [O] org table calc and lisp for hh:mm timetable, Christian Moe, 2011/03/22
- Re: [O] org table calc and lisp for hh:mm timetable,
Eric Schulte <=
- Re: [O] org table calc and lisp for hh:mm timetable, Martin Halder, 2011/03/24
- Re: [O] org table calc and lisp for hh:mm timetable, Carsten Dominik, 2011/03/22
- Re: [O] org table calc and lisp for hh:mm timetable, Eric S Fraga, 2011/03/16