Re: [Orgmode] Re: SOLVED: elisp formulas in column view (without converting to tables)

2009-06-09 Thread Carsten Dominik 

Hi,

sorry for replying so late to this proposal, which is a very
nice idea.  However, specifying lisp formulas in a #+COLUMNS
definition might be a bit tedious.

In the mean time, we have installed (in version 6.27) a patch by
Mikael Fornius.  This patch defines new operators `min', `max',
and `mean', and special versions for time computations `min:',
`max:', and `mean:'.  The patch also captures all operator
definitions into a single variable, which does allow for
user-defined Lisp operators.

I have not tried, but I believe it might now be simple to add new
operators by just adding to the variable `org-columns-compile-map'.
I would be interested to hear if someone has amended this variable
successfully.  If yes, maybe we can expose it better by making
is a defcustom, or by introducing a buffer-local add-on to it.

Hope this helps

- Carsten

On Mar 16, 2009, at 9:15 PM, n...@aleblanc.cotse.net n...@aleblanc.cotse.net 
 wrote:



n...@aleblanc.cotse.net writes:


Hi,
  I have rewritten the org-columns-compute function to allow elisp
  formulas in column view.
  It allows you to specify how to accumulate values from child  
headers,

  and how to specify the value for the current header, based on other
  columns.


Have since discovered that my new version doesn't work with checkbox
formulas. The solution is to use the old version of org-columns- 
compute

if the formula is not an elisp formula. Rename the old function to
org-columns-compute-orig, and then use this code for
org-columns-compute:

(defun org-columns-compute (property)
 Sum the values of property PROPERTY hierarchically, for the entire  
buffer.

 (interactive)
 (let* ((re (concat ^ outline-regexp))
 (lmax 30) ; Does anyone use deeper levels???
 (level 0)
 (ass (assoc property org-columns-current-fmt-compiled))
 ;; parse elisp form if there is one
 (form (nth 3 ass))
 (uselisp (and ( (length form) 1)
   (or (equal ( (substring form 0 1))
   (equal ( (substring form 1 2)
 (form (if uselisp
   (replace-regexp-in-string
\$\\([^()\  ]+\\)
(string-to-number (or (org-entry-get nil \\\1\) \0\))
(nth 3 ass) t)))
 ;; vector to hold running totals for each level
 (lsum (make-vector lmax (if uselisp nil 0)))
 (format (nth 4 ass))
 (printf (nth 5 ass))
 (beg org-columns-top-level-marker)
	 last-level val valflag end sumpos sum-alist str str1 useval  
prevtotal curtotal newvals)

   (if uselisp
(save-excursion
  ;; Find the region to compute
  (goto-char beg)
	  (setq end (condition-case nil (org-end-of-subtree t) (error  
(point-max

  (goto-char end)
  ;; Walk the tree from the back and do the computations
  (while (re-search-backward re beg t)
(setq sumpos (match-beginning 0)
  last-level level
  level (org-outline-level)
  ;; total from children, or nil if there were none
  prevtotal (if ( level last-level) (aref lsum last-level) nil)
  ;; total at this level
  curtotal (aref lsum level)
  ;; current property value as string
  val (org-entry-get nil property)
  ;; is it non-empty?
  valflag (and val (string-match \\S- val))
  ;; current property value as number (or nil if empty)
  curval (if valflag (org-column-string-to-number val format) 
nil)
  ;; get values to replace current value and running total
  newvals (if uselisp (eval-expression (read form))
(list (or prevtotal curval 0)
  (+ curtotal (or prevtotal curval 0)
(cond
 (( level last-level) ; we have moved up to a parent
  (setq
   ;; new value, as string
	   str (if (nth 0 newvals) (org-columns-number-to-string (nth 0  
newvals) format printf) nil)

   ;; add text properties to it
	   useval (org-add-props (copy-sequence str) nil 'org-computed  
t 'face 'bold)

   ;; get current text properties
   sum-alist (get-text-property sumpos 'org-summaries))
  ;; put new value here as a text property
  (if (assoc property sum-alist)
  (setcdr (assoc property sum-alist) useval)
(push (cons property useval) sum-alist)
(org-unmodified
 (add-text-properties sumpos (1+ sumpos)
  (list 'org-summaries sum-alist
  ;; put new org property value
  (if (nth 0 newvals) (org-entry-put nil property str))
  ;; set value for current level total
  (when (or prevtotal valflag)

[Orgmode] Re: SOLVED: elisp formulas in column view (without converting to tables)

2009-03-16 Thread news 
n...@aleblanc.cotse.net writes:

 Hi,
I have rewritten the org-columns-compute function to allow elisp
formulas in column view.
It allows you to specify how to accumulate values from child headers,
and how to specify the value for the current header, based on other
columns.

Have since discovered that my new version doesn't work with checkbox
formulas. The solution is to use the old version of org-columns-compute
if the formula is not an elisp formula. Rename the old function to
org-columns-compute-orig, and then use this code for
org-columns-compute:

(defun org-columns-compute (property)
  Sum the values of property PROPERTY hierarchically, for the entire buffer.
  (interactive)
  (let* ((re (concat ^ outline-regexp))
 (lmax 30) ; Does anyone use deeper levels???
 (level 0)
 (ass (assoc property org-columns-current-fmt-compiled))
 ;; parse elisp form if there is one
 (form (nth 3 ass))
 (uselisp (and ( (length form) 1)
   (or (equal ( (substring form 0 1)) 
   (equal ( (substring form 1 2)
 (form (if uselisp
   (replace-regexp-in-string 
\$\\([^()\]+\\) 
(string-to-number (or (org-entry-get nil \\\1\) \0\)) 
(nth 3 ass) t)))
 ;; vector to hold running totals for each level
 (lsum (make-vector lmax (if uselisp nil 0)))
 (format (nth 4 ass))
 (printf (nth 5 ass))
 (beg org-columns-top-level-marker)
 last-level val valflag end sumpos sum-alist str str1 useval prevtotal 
curtotal newvals)
(if uselisp
(save-excursion
  ;; Find the region to compute
  (goto-char beg)
  (setq end (condition-case nil (org-end-of-subtree t) (error 
(point-max
  (goto-char end)
  ;; Walk the tree from the back and do the computations
  (while (re-search-backward re beg t)
(setq sumpos (match-beginning 0)
  last-level level
  level (org-outline-level)
  ;; total from children, or nil if there were none
  prevtotal (if ( level last-level) (aref lsum last-level) nil)
  ;; total at this level
  curtotal (aref lsum level)
  ;; current property value as string
  val (org-entry-get nil property)
  ;; is it non-empty?
  valflag (and val (string-match \\S- val))
  ;; current property value as number (or nil if empty)
  curval (if valflag (org-column-string-to-number val format) 
nil)
  ;; get values to replace current value and running total
  newvals (if uselisp (eval-expression (read form))
(list (or prevtotal curval 0)
  (+ curtotal (or prevtotal curval 0)
(cond
 (( level last-level) ; we have moved up to a parent
  (setq 
   ;; new value, as string
   str (if (nth 0 newvals) (org-columns-number-to-string (nth 0 
newvals) format printf) nil)
   ;; add text properties to it
   useval (org-add-props (copy-sequence str) nil 'org-computed t 
'face 'bold)
   ;; get current text properties
   sum-alist (get-text-property sumpos 'org-summaries))
  ;; put new value here as a text property
  (if (assoc property sum-alist)
  (setcdr (assoc property sum-alist) useval)
(push (cons property useval) sum-alist)
(org-unmodified
 (add-text-properties sumpos (1+ sumpos)
  (list 'org-summaries sum-alist
  ;; put new org property value 
  (if (nth 0 newvals) (org-entry-put nil property str))
  ;; set value for current level total
  (when (or prevtotal valflag)
(aset lsum level (nth 1 newvals)))
  ;; clear totals for deeper levels
  (loop for l from (1+ level) to (1- lmax) do
(aset lsum l (if uselisp nil 0
 ((= level last-level) ; we have not moved up to a parent
  ;; set new org property value and add to total for this level
  (org-entry-put nil property (org-columns-number-to-string (nth 0 
newvals) format printf))
  (aset lsum level (nth 1 newvals)))
 (t (error This should not happen)
  (org-columns-compute-orig property



-- 
aleblanc



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[Orgmode] Re: SOLVED: elisp formulas in column view (without converting to tables)

2009-03-13 Thread news 
n...@aleblanc.cotse.net writes:

 Hi,
I have rewritten the org-columns-compute function to allow elisp
formulas in column view.
It allows you to specify how to accumulate values from child headers,
and how to specify the value for the current header, based on other
columns.
In the column specification you place elisp code between the braces
{} after the column name. This elisp should return a list of 2
values. The first value should be the value for that header, and the second
value should be the running total of values so far at that level, which 
 will
eventually be used to set the value for the parent header.

The following values may be referenced by your elisp code:

| $name | the value of the 'name' column for this header 
 (swap 'name' for whatever columns you have) |
| curval| the current value for this header
   |
| curtotal  | the running total from headers at the same level 
 as this one   |
| prevtotal | the total from headers below this level  
   |


I forgot to mention that curtotal will be nil if the current header is
the first header at the current level, and prevtotal will be nil if the
current header has no children. You can test for these in your elisp functions.

-- 
aleblanc



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