* using a simple numerical variable in an org text ocument
@ 2013-07-25 21:36 Matt Price
2013-07-25 21:55 ` Thorsten Jolitz
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Matt Price @ 2013-07-25 21:36 UTC (permalink / raw)
To: Org Mode
Hi,
I'm making a very simple org-document -- a packing list for a trip.
It has entries like
- 4 mugs
- for sleeping bags
- 4 thermarest pads
I'd like to replace the numbers there by a variable -- so if I make a
list for 4 people, the number displayed will be '4'; but if the list
is for 2 people, the number displayed will be 2. Better would be if I
could also do simple arithmetic manipulations (x * 6 dinners for a
week...). I there a really simple way to do this? if it's not really
easy, it won't really seem worth it, but if it is really easy, I will
use it a lot...
Thanks guys!
Matt
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: using a simple numerical variable in an org text ocument
2013-07-25 21:36 using a simple numerical variable in an org text ocument Matt Price
@ 2013-07-25 21:55 ` Thorsten Jolitz
2013-07-25 23:39 ` Thorsten Jolitz
2013-07-26 7:43 ` Sebastien Vauban
2 siblings, 0 replies; 7+ messages in thread
From: Thorsten Jolitz @ 2013-07-25 21:55 UTC (permalink / raw)
To: emacs-orgmode
Matt Price <moptop99@gmail.com> writes:
> Hi,
>
> I'm making a very simple org-document -- a packing list for a trip.
> It has entries like
>
> - 4 mugs
> - for sleeping bags
> - 4 thermarest pads
>
>
> I'd like to replace the numbers there by a variable -- so if I make a
> list for 4 people, the number displayed will be '4'; but if the list
> is for 2 people, the number displayed will be 2. Better would be if I
> could also do simple arithmetic manipulations (x * 6 dinners for a
> week...). I there a really simple way to do this? if it's not really
> easy, it won't really seem worth it, but if it is really easy, I will
> use it a lot...
Use a table with a named reference, e.g. stored as subtree property. See
[[http://orgmode.org/org.html#The-spreadsheet][Spreadsheets]].
,--------------------------------
| * My Trip
| :PROPERTIES:
| :people: 4
| :END:
|
| | item | factor | total |
| |------------+--------+-------|
| | toothbrush | 1 | 4 |
| | socks | 4 | 16 |
| #+TBLFM: $3=$2*$PROP_people
`--------------------------------
--
cheers,
Thorsten
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: using a simple numerical variable in an org text ocument
2013-07-25 21:36 using a simple numerical variable in an org text ocument Matt Price
2013-07-25 21:55 ` Thorsten Jolitz
@ 2013-07-25 23:39 ` Thorsten Jolitz
2013-07-26 1:16 ` Jonathan Leech-Pepin
2013-07-26 7:43 ` Sebastien Vauban
2 siblings, 1 reply; 7+ messages in thread
From: Thorsten Jolitz @ 2013-07-25 23:39 UTC (permalink / raw)
To: emacs-orgmode
Matt Price <moptop99@gmail.com> writes:
> Hi,
>
> I'm making a very simple org-document -- a packing list for a trip.
> It has entries like
>
> - 4 mugs
> - for sleeping bags
> - 4 thermarest pads
>
>
> I'd like to replace the numbers there by a variable -- so if I make a
> list for 4 people, the number displayed will be '4'; but if the list
> is for 2 people, the number displayed will be 2. Better would be if I
> could also do simple arithmetic manipulations (x * 6 dinners for a
> week...). I there a really simple way to do this? if it's not really
> easy, it won't really seem worth it, but if it is really easy, I will
> use it a lot...
Or, if you insist on checkboxes (private conversation), you might put this
function in your .emacs and run it to replace all numbers (that are either
factors or totals) with num * people (when people >= 0) or with num / people
(when people > 0).
#+begin_src emacs-lisp
(defun tj/calc-total-items (people)
"Replace factor cookies with factor * people totals."
(interactive "NPeople: ")
(save-excursion
(save-restriction
(save-match-data
(goto-char (point-min))
(widen)
(while (not (eobp))
(and (org-at-item-checkbox-p)
(looking-at
(concat
"\\(^[[:space:]]*-[[:space:]]"
"\\[[-X\s]\\][[:space:]]\\)"
"\\([[:digit:]]+\\)\\([[:space:]]+\\)"))
(let* ((num
(string-to-number
(match-string-no-properties 2)))
(total
(if (>= people 0)
(* num people)
(/ num (abs people)))))
(replace-match
(format "%s" total) nil nil nil 2)))
(forward-line))))))
#+end_src
#+results:
: tj/calc-total-items
Use either as
,----------------------------------
| M-x tj/calc-total-items RET 7 RET
`----------------------------------
or
,----------------------------------
| C-7 M-x tj/calc-total-items RET
`----------------------------------
in your org-buffer.
When there are e.g. 7 people, this checkbox list
- [ ] 1 toothbrushes
- [ ] 4 socks
turns into
- [ ] 7 toothbrushes
- [ ] 28 socks
after applying the above command in this buffer, and the change is
reversed when applying
,----------------------------------
| M-x tj/calc-total-items RET -7 RET
`----------------------------------
or
,----------------------------------
| C--7 M-x tj/calc-total-items RET
`----------------------------------
afterwards. Note that you must stick to the format
,--------------------------
| - [ ] <<digit>> text ....
`--------------------------
for this to work.
--
cheers,
Thorsten
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: using a simple numerical variable in an org text ocument
2013-07-25 23:39 ` Thorsten Jolitz
@ 2013-07-26 1:16 ` Jonathan Leech-Pepin
0 siblings, 0 replies; 7+ messages in thread
From: Jonathan Leech-Pepin @ 2013-07-26 1:16 UTC (permalink / raw)
To: Thorsten Jolitz; +Cc: emacs-orgmode
Hi,
Thorsten Jolitz writes:
> Matt Price <moptop99@gmail.com> writes:
>
>> Hi,
>>
>> I'm making a very simple org-document -- a packing list for a trip.
>> It has entries like
>>
>> - 4 mugs
>> - for sleeping bags
>> - 4 thermarest pads
>>
>>
>> I'd like to replace the numbers there by a variable -- so if I make a
>> list for 4 people, the number displayed will be '4'; but if the list
>> is for 2 people, the number displayed will be 2. Better would be if I
>> could also do simple arithmetic manipulations (x * 6 dinners for a
>> week...). I there a really simple way to do this? if it's not really
>> easy, it won't really seem worth it, but if it is really easy, I will
>> use it a lot...
>
> Or, if you insist on checkboxes (private conversation), you might put this
> function in your .emacs and run it to replace all numbers (that are either
> factors or totals) with num * people (when people >= 0) or with num / people
> (when people > 0).
>
If you want to use checkboxes, couldn't you use a babel code block and
then =call= it on each entry?
#+begin_src org
,#+MACRO: count call_Sample(x=$1)[:results raw]
,* Test
:PROPERTIES:
:var: people=5
:END:
- [ ] call_Sample(x=2)[:results raw] socks
- [ ] call_Sample(x=1)[:results raw] toothbrushes
- [ ] {{{count(3)}}} shoes
,#+name: Sample
,#+header: :var x=1 :results raw
,#+begin_src emacs-lisp
(* x people)
,#+end_src
,#+RESULTS: Sample
5
#+end_src
You can then wrap it in a macro to avoid having to write out quite as
much per line (as the last entry demonstrates.
Then just adjust the value of the =:var:= property to match how many
people, and your export will provide the correct values
> #+begin_src emacs-lisp
> (defun tj/calc-total-items (people)
> "Replace factor cookies with factor * people totals."
> (interactive "NPeople: ")
> (save-excursion
> (save-restriction
> (save-match-data
> (goto-char (point-min))
> (widen)
> (while (not (eobp))
> (and (org-at-item-checkbox-p)
> (looking-at
> (concat
> "\\(^[[:space:]]*-[[:space:]]"
> "\\[[-X\s]\\][[:space:]]\\)"
> "\\([[:digit:]]+\\)\\([[:space:]]+\\)"))
> (let* ((num
> (string-to-number
> (match-string-no-properties 2)))
> (total
> (if (>= people 0)
> (* num people)
> (/ num (abs people)))))
> (replace-match
> (format "%s" total) nil nil nil 2)))
> (forward-line))))))
> #+end_src
>
> #+results:
> : tj/calc-total-items
>
>
> Use either as
>
> ,----------------------------------
> | M-x tj/calc-total-items RET 7 RET
> `----------------------------------
>
> or
>
> ,----------------------------------
> | C-7 M-x tj/calc-total-items RET
> `----------------------------------
>
> in your org-buffer.
>
> When there are e.g. 7 people, this checkbox list
>
> - [ ] 1 toothbrushes
> - [ ] 4 socks
>
> turns into
>
> - [ ] 7 toothbrushes
> - [ ] 28 socks
>
> after applying the above command in this buffer, and the change is
> reversed when applying
>
> ,----------------------------------
> | M-x tj/calc-total-items RET -7 RET
> `----------------------------------
>
> or
>
> ,----------------------------------
> | C--7 M-x tj/calc-total-items RET
> `----------------------------------
>
> afterwards. Note that you must stick to the format
>
> ,--------------------------
> | - [ ] <<digit>> text ....
> `--------------------------
>
> for this to work.
Regards,
--
Jonathan
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: using a simple numerical variable in an org text ocument
2013-07-25 21:36 using a simple numerical variable in an org text ocument Matt Price
2013-07-25 21:55 ` Thorsten Jolitz
2013-07-25 23:39 ` Thorsten Jolitz
@ 2013-07-26 7:43 ` Sebastien Vauban
2013-07-27 18:19 ` Dieter Wilhelm
2 siblings, 1 reply; 7+ messages in thread
From: Sebastien Vauban @ 2013-07-26 7:43 UTC (permalink / raw)
To: emacs-orgmode-mXXj517/zsQ
Matt Price wrote:
> I'm making a very simple org-document -- a packing list for a trip.
> It has entries like
>
> - 4 mugs
> - for sleeping bags
> - 4 thermarest pads
>
>
> I'd like to replace the numbers there by a variable -- so if I make a
> list for 4 people, the number displayed will be '4'; but if the list
> is for 2 people, the number displayed will be 2. Better would be if I
> could also do simple arithmetic manipulations (x * 6 dinners for a
> week...). I there a really simple way to do this? if it's not really
> easy, it won't really seem worth it, but if it is really easy, I will
> use it a lot...
As macros are expanded before Babel code is evaluated, I would
try #+scr_calc{...} with MACRO constants in the formula (untested).
Best regards,
Seb
--
Sebastien Vauban
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: using a simple numerical variable in an org text ocument
2013-07-26 7:43 ` Sebastien Vauban
@ 2013-07-27 18:19 ` Dieter Wilhelm
2013-08-14 5:54 ` Sebastien Vauban
0 siblings, 1 reply; 7+ messages in thread
From: Dieter Wilhelm @ 2013-07-27 18:19 UTC (permalink / raw)
To: Sebastien Vauban; +Cc: emacs-orgmode
"Sebastien Vauban" <sva-news@mygooglest.com> writes:
> Matt Price wrote:
>> I'm making a very simple org-document -- a packing list for a trip.
>> It has entries like
>> - 4 mugs
>> - for sleeping bags
>> - 4 thermarest pads
>> I'd like to replace the numbers there by a variable -- so if I make a
>> list for 4 people, the number displayed will be '4'; but if the list
>> is for 2 people, the number displayed will be 2. Better would be if I
>> could also do simple arithmetic manipulations (x * 6 dinners for a
>> week...). I there a really simple way to do this? if it's not really
>> easy, it won't really seem worth it, but if it is really easy, I will
>> use it a lot...
> As macros are expanded before Babel code is evaluated, I would
> try #+scr_calc{...} with MACRO constants in the formula (untested).
Hi Seb(astien),
it seems that you're working with calc source blocks! :-) I'd like to
leverage calc in org-mode (I'm thinking of unit conversions, etc.:
Mathematica for free men) but I'm not getting it. I assume that in an
#+src_calc block the mode of operation of calc is algebraic, isn't it?
#+BEGIN_SRC calc
2 + 2
sqrt(8)
# above is working, by the way, does a calc block have a comment sign?
2 cm
calc-convert-units(mm)
#+END_SRC
#+RESULTS:
: calc - convert - units(mm)
Above attempt is not working. Is it also possible to use the RPN? Like
in this fictive block:
#+BEGIN_SRC calc :mode rpn
2 2 +
2 'mm 8 'cm + 'in u c
#+END_SRC
And the *Calc Trail* buffer seems not to reflect any operations, despite
Calc showing the block results in its calculator buffer!
Thanks
Dieter
> Best regards,
> Seb
--
Best wishes
H. Dieter Wilhelm
Darmstadt
Germany
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: using a simple numerical variable in an org text ocument
2013-07-27 18:19 ` Dieter Wilhelm
@ 2013-08-14 5:54 ` Sebastien Vauban
0 siblings, 0 replies; 7+ messages in thread
From: Sebastien Vauban @ 2013-08-14 5:54 UTC (permalink / raw)
To: emacs-orgmode-mXXj517/zsQ
Hi Dieter,
Dieter Wilhelm wrote:
> "Sebastien Vauban" <sva-news-D0wtAvR13HarG/iDocfnWg@public.gmane.org> writes:
>> As macros are expanded before Babel code is evaluated, I would
>> try #+scr_calc{...} with MACRO constants in the formula (untested).
>
> it seems that you're working with calc source blocks! :-) I'd like to
> leverage calc in org-mode (I'm thinking of unit conversions, etc.:
> Mathematica for free men) but I'm not getting it. I assume that in an
> #+src_calc block the mode of operation of calc is algebraic, isn't it?
>
> #+BEGIN_SRC calc
> 2 + 2
> sqrt(8)
> # above is working, by the way, does a calc block have a comment sign?
> 2 cm
> calc-convert-units(mm)
> #+END_SRC
>
> #+RESULTS:
> : calc - convert - units(mm)
>
> Above attempt is not working. Is it also possible to use the RPN? Like
> in this fictive block:
>
> #+BEGIN_SRC calc :mode rpn
> 2 2 +
> 2 'mm 8 'cm + 'in u c
> #+END_SRC
>
> And the *Calc Trail* buffer seems not to reflect any operations, despite
> Calc showing the block results in its calculator buffer!
Sorry to come back to this with a huge delay, but in fact I don't have any
experience with Calc mode at all! I can't answer your questions without
digging the manuals.
The only thing I make use of is inline Calc for simple computations, to avoid
making mistakes in prices (fictitious example):
--8<---------------cut here---------------start------------->8---
The work will last 20 days and cost src_calc[:results raw]{20 * 498} USD at
the base rate.
--8<---------------cut here---------------end--------------->8---
Best regards,
Seb
--
Sebastien Vauban
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-08-14 5:54 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-07-25 21:36 using a simple numerical variable in an org text ocument Matt Price
2013-07-25 21:55 ` Thorsten Jolitz
2013-07-25 23:39 ` Thorsten Jolitz
2013-07-26 1:16 ` Jonathan Leech-Pepin
2013-07-26 7:43 ` Sebastien Vauban
2013-07-27 18:19 ` Dieter Wilhelm
2013-08-14 5:54 ` Sebastien Vauban
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