* thoughts: "formulas for timestamps" feature
@ 2007-06-01 14:20 Ruslan Kosolapov
2007-06-06 8:10 ` Carsten Dominik
0 siblings, 1 reply; 2+ messages in thread
From: Ruslan Kosolapov @ 2007-06-01 14:20 UTC (permalink / raw)
To: org-mode
Hi all, it's me again :)
My previous message
(http://www.mail-archive.com/emacs-orgmode@gnu.org/msg01685.html)
contains complains about ability to use formulas for timestamp (third
problem).
Yesterday I found http://www.cs.brown.edu/~gmarceau/spread.el
I think it is what I need. But one small problem blocks me.
In org-file I wrote:
** NEW Task1
DEADLINE: qwe <= (concat "<2007-05-15 Втр>") => task1
After M-x spread-recalc org file goes to:
** NEW Task1
DEADLINE: "<2007-05-15 Втр>" <= (concat "<2007-05-15 Втр>") => task1
But agenda do not determine dates in quotes (btw, shift-up works
well).
I see two solutions:
- fix regexp of dates determination for quotes support (in org-mode)
- fix spread-mode - remove quotes printing
I tried to fix spread-mode, and fail (there are many reasons of it).
But if I change org-deadline-time-regexp as follows:
- (concat "\\<" org-deadline-string " *<\\([^>]+\\)>")
+ (concat "\\<" org-deadline-string " *\"?<\\([^>]+\\)>\"?")
all works fine.
So, I have some questions:
1. Does org-mode uses symbols "<=" and "=>"?
2. Does org-mode contains functions for timestamp calculation? I need
something like
(add-to-timestamp "<2007-05-15 Втр>" "+1d") with result "<2007-05-16 Срд>"
Now I found only org-timestamp-change, but "Change the date in the
time stamp at point" is not what I need (I have no "point", I have a
string with timestamp). Of course, I can write such functions by
myself, but it is not the true way if such functions already exists.
PS: I'm a newbie in emacs lisp, so, sorry if my second question is
a stupid one :)
--
Ruslan Kosolapov
Plesk QA Department Second Manager
SWsoft, Inc.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: thoughts: "formulas for timestamps" feature
2007-06-01 14:20 thoughts: "formulas for timestamps" feature Ruslan Kosolapov
@ 2007-06-06 8:10 ` Carsten Dominik
0 siblings, 0 replies; 2+ messages in thread
From: Carsten Dominik @ 2007-06-06 8:10 UTC (permalink / raw)
To: Ruslan Kosolapov; +Cc: org-mode
On Jun 1, 2007, at 16:20, Ruslan Kosolapov wrote:
>
> Hi all, it's me again :)
>
> My previous message
> (http://www.mail-archive.com/emacs-orgmode@gnu.org/msg01685.html)
> contains complains about ability to use formulas for timestamp (third
> problem).
>
> Yesterday I found http://www.cs.brown.edu/~gmarceau/spread.el
>
> I think it is what I need. But one small problem blocks me.
>
> In org-file I wrote:
> ** NEW Task1
> DEADLINE: qwe <= (concat "<2007-05-15 Втр>") => task1
>
> After M-x spread-recalc org file goes to:
> ** NEW Task1
> DEADLINE: "<2007-05-15 Втр>" <= (concat "<2007-05-15 Втр>") => task1
>
> But agenda do not determine dates in quotes (btw, shift-up works
> well).
>
> I see two solutions:
> - fix regexp of dates determination for quotes support (in org-mode)
I would recommend against this. I am not sure what this would break,
but it may very well break something.
> - fix spread-mode - remove quotes printing
>
> I tried to fix spread-mode, and fail (there are many reasons of it).
>
> 1. Does org-mode uses symbols "<=" and "=>"?
Yes, => is used in CLOCK lines, and in tables (but there only as
a display property).
>
> 2. Does org-mode contains functions for timestamp calculation? I need
> something like
> (add-to-timestamp "<2007-05-15 Втр>" "+1d") with result "<2007-05-16
> Срд>"
Org itself uses time-date.el. There are no functions which would make
this easy - but it could be easy to write one - base it
on org-timestamp-change, but make it read and return strings.
- Carsten
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