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;;; org-table.el --- The table editor for Org-mode

;; Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.

;; Author: Carsten Dominik <carsten at orgmode dot org>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
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;; Version: 6.13a
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;;
;; This file is part of GNU Emacs.
;;
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Commentary:

;; This file contains the table editor and spreadsheed for Org-mode.

;; Watch out:  Here we are talking about two different kind of tables.
;; Most of the code is for the tables created with the Org-mode table editor.
;; Sometimes, we talk about tables created and edited with the table.el
;; Emacs package.  We call the former org-type tables, and the latter
;; table.el-type tables.

;;; Code:

(eval-when-compile
  (require 'cl))
(require 'org)

(declare-function org-table-clean-before-export "org-exp" (lines))
(declare-function org-format-org-table-html "org-exp" (lines &optional splice))
(defvar orgtbl-mode) ; defined below
(defvar orgtbl-mode-menu) ; defined when orgtbl mode get initialized
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(defvar org-export-html-table-tag) ; defined in org-exp.el
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(defvar constants-unit-system)

(defcustom orgtbl-optimized (eq org-enable-table-editor 'optimized)
  "Non-nil means, use the optimized table editor version for `orgtbl-mode'.
In the optimized version, the table editor takes over all simple keys that
normally just insert a character.  In tables, the characters are inserted
in a way to minimize disturbing the table structure (i.e. in overwrite mode
for empty fields).  Outside tables, the correct binding of the keys is
restored.

The default for this option is t if the optimized version is also used in
Org-mode.  See the variable `org-enable-table-editor' for details.  Changing
this variable requires a restart of Emacs to become effective."
  :group 'org-table
  :type 'boolean)

(defcustom orgtbl-radio-table-templates
  '((latex-mode "% BEGIN RECEIVE ORGTBL %n
% END RECEIVE ORGTBL %n
\\begin{comment}
#+ORGTBL: SEND %n orgtbl-to-latex :splice nil :skip 0
| | |
\\end{comment}\n")
    (texinfo-mode "@c BEGIN RECEIVE ORGTBL %n
@c END RECEIVE ORGTBL %n
@ignore
#+ORGTBL: SEND %n orgtbl-to-html :splice nil :skip 0
| | |
@end ignore\n")
    (html-mode "<!-- BEGIN RECEIVE ORGTBL %n -->
<!-- END RECEIVE ORGTBL %n -->
<!--
#+ORGTBL: SEND %n orgtbl-to-html :splice nil :skip 0
| | |
-->\n"))
  "Templates for radio tables in different major modes.
All occurrences of %n in a template will be replaced with the name of the
table, obtained by prompting the user."
  :group 'org-table
  :type '(repeat
	  (list (symbol :tag "Major mode")
		(string :tag "Format"))))

(defgroup org-table-settings nil
  "Settings for tables in Org-mode."
  :tag "Org Table Settings"
  :group 'org-table)

(defcustom org-table-default-size "5x2"
  "The default size for newly created tables, Columns x Rows."
  :group 'org-table-settings
   :type 'string)

(defcustom org-table-number-regexp
  "^\\([<>]?[-+^.0-9]*[0-9][-+^.0-9eEdDx()%:]*\\|\\(0[xX]\\)[0-9a-fA-F]+\\|nan\\)$"
  "Regular expression for recognizing numbers in table columns.
If a table column contains mostly numbers, it will be aligned to the
right.  If not, it will be aligned to the left.

The default value of this option is a regular expression which allows
anything which looks remotely like a number as used in scientific
context.  For example, all of the following will be considered a
number:
    12    12.2    2.4e-08    2x10^12    4.034+-0.02    2.7(10)  >3.5

Other options offered by the customize interface are more restrictive."
  :group 'org-table-settings
  :type '(choice
	  (const :tag "Positive Integers"
		 "^[0-9]+$")
	  (const :tag "Integers"
		 "^[-+]?[0-9]+$")
	  (const :tag "Floating Point Numbers"
		 "^[-+]?\\([0-9]*\\.[0-9]+\\|[0-9]+\\.[0-9]*\\)$")
	  (const :tag "Floating Point Number or Integer"
		 "^[-+]?\\([0-9]*\\.[0-9]+\\|[0-9]+\\.?[0-9]*\\)$")
	  (const :tag "Exponential, Floating point, Integer"
		 "^[-+]?[0-9.]+\\([eEdD][-+0-9]+\\)?$")
	  (const :tag "Very General Number-Like, including hex"
		 "^\\([<>]?[-+^.0-9]*[0-9][-+^.0-9eEdDx()%]*\\|\\(0[xX]\\)[0-9a-fA-F]+\\|nan\\)$")
	  (string :tag "Regexp:")))

(defcustom org-table-number-fraction 0.5
  "Fraction of numbers in a column required to make the column align right.
In a column all non-white fields are considered.  If at least this
fraction of fields is matched by `org-table-number-fraction',
alignment to the right border applies."
  :group 'org-table-settings
  :type 'number)

(defgroup org-table-editing nil
  "Behavior of tables during editing in Org-mode."
  :tag "Org Table Editing"
  :group 'org-table)

(defcustom org-table-automatic-realign t
  "Non-nil means, automatically re-align table when pressing TAB or RETURN.
When nil, aligning is only done with \\[org-table-align], or after column
removal/insertion."
  :group 'org-table-editing
  :type 'boolean)

(defcustom org-table-auto-blank-field t
  "Non-nil means, automatically blank table field when starting to type into it.
This only happens when typing immediately after a field motion
command (TAB, S-TAB or RET).
Only relevant when `org-enable-table-editor' is equal to `optimized'."
  :group 'org-table-editing
  :type 'boolean)

(defcustom org-table-tab-jumps-over-hlines t
  "Non-nil means, tab in the last column of a table with jump over a hline.
If a horizontal separator line is following the current line,
`org-table-next-field' can either create a new row before that line, or jump
over the line.  When this option is nil, a new line will be created before
this line."
  :group 'org-table-editing
  :type 'boolean)

(defgroup org-table-calculation nil
  "Options concerning tables in Org-mode."
  :tag "Org Table Calculation"
  :group 'org-table)

(defcustom org-table-use-standard-references t
  "Should org-mode work with table refrences like B3 instead of @3$2?
Possible values are:
nil     never use them
from    accept as input, do not present for editing
t:      accept as input and present for editing"
  :group 'org-table-calculation
  :type '(choice
	  (const :tag "Never, don't even check user input for them" nil)
	  (const :tag "Always, both as user input, and when editing" t)
	  (const :tag "Convert user input, don't offer during editing" 'from)))

(defcustom org-table-copy-increment t
  "Non-nil means, increment when copying current field with \\[org-table-copy-down]."
  :group 'org-table-calculation
  :type 'boolean)

(defcustom org-calc-default-modes
  '(calc-internal-prec 12
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    calc-float-format  (float 8)
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    calc-angle-mode    deg
    calc-prefer-frac   nil
    calc-symbolic-mode nil
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    calc-date-format (YYYY "-" MM "-" DD " " Www (" " hh ":" mm))
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    calc-display-working-message t
    )
  "List with Calc mode settings for use in calc-eval for table formulas.
The list must contain alternating symbols (Calc modes variables and values).
Don't remove any of the default settings, just change the values.  Org-mode
relies on the variables to be present in the list."
  :group 'org-table-calculation
  :type 'plist)

(defcustom org-table-formula-evaluate-inline t
  "Non-nil means, TAB and RET evaluate a formula in current table field.
If the current field starts with an equal sign, it is assumed to be a formula
which should be evaluated as described in the manual and in the documentation
string of the command `org-table-eval-formula'.  This feature requires the
Emacs calc package.
When this variable is nil, formula calculation is only available through
the command \\[org-table-eval-formula]."
  :group 'org-table-calculation
  :type 'boolean)

(defcustom org-table-formula-use-constants t
  "Non-nil means, interpret constants in formulas in tables.
A constant looks like `$c' or `$Grav' and will be replaced before evaluation
by the value given in `org-table-formula-constants', or by a value obtained
from the `constants.el' package."
  :group 'org-table-calculation
  :type 'boolean)

(defcustom org-table-formula-constants nil
  "Alist with constant names and values, for use in table formulas.
The car of each element is a name of a constant, without the `$' before it.
The cdr is the value as a string.  For example, if you'd like to use the
speed of light in a formula, you would configure

  (setq org-table-formula-constants '((\"c\" . \"299792458.\")))

and then use it in an equation like `$1*$c'.

Constants can also be defined on a per-file basis using a line like

#+CONSTANTS: c=299792458. pi=3.14 eps=2.4e-6"
  :group 'org-table-calculation
  :type '(repeat
	  (cons (string :tag "name")
		(string :tag "value"))))

(defcustom org-table-allow-automatic-line-recalculation t
  "Non-nil means, lines marked with |#| or |*| will be recomputed automatically.
Automatically means, when TAB or RET or C-c C-c are pressed in the line."
  :group 'org-table-calculation
  :type 'boolean)

(defgroup org-table-import-export nil
  "Options concerning table import and export in Org-mode."
  :tag "Org Table Import Export"
  :group 'org-table)

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(defcustom org-table-export-default-format "orgtbl-to-tsv"
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  "Default export parameters for org-table-export. These can be
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overridden on for a specific table by setting the TABLE_EXPORT_FORMAT
property.  See the manual section on orgtbl radio tables for the different
export transformations and available parameters."
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  :group 'org-table-import-export
  :type 'string)

(defconst org-table-auto-recalculate-regexp "^[ \t]*| *# *\\(|\\|$\\)"
  "Detects a table line marked for automatic recalculation.")
(defconst org-table-recalculate-regexp "^[ \t]*| *[#*] *\\(|\\|$\\)"
  "Detects a table line marked for automatic recalculation.")
(defconst org-table-calculate-mark-regexp "^[ \t]*| *[!$^_#*] *\\(|\\|$\\)"
  "Detects a table line marked for automatic recalculation.")
(defconst org-table-border-regexp "^[ \t]*[^| \t]"
  "Searching from within a table (any type) this finds the first line
outside the table.")
(defvar org-table-last-highlighted-reference nil)
(defvar org-table-formula-history nil)

(defvar org-table-column-names nil
  "Alist with column names, derived from the `!' line.")
(defvar org-table-column-name-regexp nil
  "Regular expression matching the current column names.")
(defvar org-table-local-parameters nil
  "Alist with parameter names, derived from the `$' line.")
(defvar org-table-named-field-locations nil
  "Alist with locations of named fields.")

(defvar org-table-current-line-types nil
  "Table row types, non-nil only for the duration of a comand.")
(defvar org-table-current-begin-line nil
  "Table begin line, non-nil only for the duration of a comand.")
(defvar org-table-current-begin-pos nil
  "Table begin position, non-nil only for the duration of a comand.")
(defvar org-table-dlines nil
  "Vector of data line line numbers in the current table.")
(defvar org-table-hlines nil
  "Vector of hline line numbers in the current table.")

(defconst org-table-range-regexp
   "@\\([-+]?I*[-+]?[0-9]*\\)?\\(\\$[-+]?[0-9]+\\)?\\(\\.\\.@?\\([-+]?I*[-+]?[0-9]*\\)?\\(\\$[-+]?[0-9]+\\)?\\)?"
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  "Regular expression for matching ranges in formulas.")

(defconst org-table-range-regexp2
  (concat
   "\\(" "@[-0-9I$&]+" "\\|" "[a-zA-Z]\\{1,2\\}\\([0-9]+\\|&\\)" "\\|" "\\$[a-zA-Z0-9]+" "\\)"
   "\\.\\."
   "\\(" "@?[-0-9I$&]+" "\\|" "[a-zA-Z]\\{1,2\\}\\([0-9]+\\|&\\)" "\\|" "\\$[a-zA-Z0-9]+" "\\)")
  "Match a range for reference display.")

(defconst org-table-translate-regexp
  (concat "\\(" "@[-0-9I$]+" "\\|" "[a-zA-Z]\\{1,2\\}\\([0-9]+\\|&\\)" "\\)")
  "Match a reference that needs translation, for reference display.")

(defun org-table-create-with-table.el ()
  "Use the table.el package to insert a new table.
If there is already a table at point, convert between Org-mode tables
and table.el tables."
  (interactive)
  (require 'table)
  (cond
   ((org-at-table.el-p)
    (if (y-or-n-p "Convert table to Org-mode table? ")
	(org-table-convert)))
   ((org-at-table-p)
    (if (y-or-n-p "Convert table to table.el table? ")
	(org-table-convert)))
   (t (call-interactively 'table-insert))))

(defun org-table-create-or-convert-from-region (arg)
  "Convert region to table, or create an empty table.
If there is an active region, convert it to a table, using the function
`org-table-convert-region'.  See the documentation of that function
to learn how the prefix argument is interpreted to determine the field
separator.
If there is no such region, create an empty table with `org-table-create'."
  (interactive "P")
  (if (org-region-active-p)
      (org-table-convert-region (region-beginning) (region-end) arg)
    (org-table-create arg)))

(defun org-table-create (&optional size)
  "Query for a size and insert a table skeleton.
SIZE is a string Columns x Rows like for example \"3x2\"."
  (interactive "P")
  (unless size
    (setq size (read-string
		(concat "Table size Columns x Rows [e.g. "
			org-table-default-size "]: ")
		"" nil org-table-default-size)))

  (let* ((pos (point))
	 (indent (make-string (current-column) ?\ ))
	 (split (org-split-string size " *x *"))
	 (rows (string-to-number (nth 1 split)))
	 (columns (string-to-number (car split)))
	 (line (concat (apply 'concat indent "|" (make-list columns "  |"))
		       "\n")))
    (if (string-match "^[ \t]*$" (buffer-substring-no-properties
				  (point-at-bol) (point)))
	(beginning-of-line 1)
      (newline))
    ;; (mapcar (lambda (x) (insert line)) (make-list rows t))
    (dotimes (i rows) (insert line))
    (goto-char pos)
    (if (> rows 1)
	;; Insert a hline after the first row.
	(progn
	  (end-of-line 1)
	  (insert "\n|-")
	  (goto-char pos)))
    (org-table-align)))

(defun org-table-convert-region (beg0 end0 &optional separator)
  "Convert region to a table.
The region goes from BEG0 to END0, but these borders will be moved
slightly, to make sure a beginning of line in the first line is included.

SEPARATOR specifies the field separator in the lines.  It can have the
following values:

'(4)     Use the comma as a field separator
'(16)    Use a TAB as field separator
integer  When a number, use that many spaces as field separator
nil      When nil, the command tries to be smart and figure out the
         separator in the following way:
         - when each line contains a TAB, assume TAB-separated material
         - when each line contains a comme, assume CSV material
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         - else, assume one or more SPACE characters as separator."
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  (interactive "rP")
  (let* ((beg (min beg0 end0))
	 (end (max beg0 end0))
	 re)
    (goto-char beg)
    (beginning-of-line 1)
    (setq beg (move-marker (make-marker) (point)))
    (goto-char end)
    (if (bolp) (backward-char 1) (end-of-line 1))
    (setq end (move-marker (make-marker) (point)))
    ;; Get the right field separator
    (unless separator
      (goto-char beg)
      (setq separator
	    (cond
	     ((not (re-search-forward "^[^\n\t]+$" end t)) '(16))
	     ((not (re-search-forward "^[^\n,]+$" end t)) '(4))
	     (t 1))))
    (setq re (cond
	      ((equal separator '(4)) "^\\|\"?[ \t]*,[ \t]*\"?")
	      ((equal separator '(16)) "^\\|\t")
	      ((integerp separator)
	       (format "^ *\\| *\t *\\| \\{%d,\\}" separator))
	      (t (error "This should not happen"))))
    (goto-char beg)
    (while (re-search-forward re end t)
      (replace-match "| " t t))
    (goto-char beg)
    (insert " ")
    (org-table-align)))

(defun org-table-import (file arg)
  "Import FILE as a table.
The file is assumed to be tab-separated.  Such files can be produced by most
spreadsheet and database applications.  If no tabs (at least one per line)
are found, lines will be split on whitespace into fields."
  (interactive "f\nP")
  (or (bolp) (newline))
  (let ((beg (point))
	(pm (point-max)))
    (insert-file-contents file)
    (org-table-convert-region beg (+ (point) (- (point-max) pm)) arg)))


(defvar org-table-last-alignment)
(defvar org-table-last-column-widths)
(defun org-table-export (&optional file format)
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  "Export table to a file, with configurable format.
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Such a file can be imported into a spreadsheet program like Excel.
FILE can be the output file name.  If not given, it will be taken from
a TABLE_EXPORT_FILE property in the current entry or higher up in the
hierarchy, or the user will be prompted for a file name.
FORMAT can be an export format, of the same kind as it used when
orgtbl-mode sends a table in a different format.  The default format can
be found in the variable `org-table-export-default-format', but the function
first checks if there is an export format specified in a TABLE_EXPORT_FORMAT
property, locally or anywhere up in the hierarchy."
  (interactive)
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  (unless (org-at-table-p)
    (error "No table at point"))
  (require 'org-exp)
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  (org-table-align) ;; make sure we have everything we need
  (let* ((beg (org-table-begin))
	 (end (org-table-end))
	 (txt (buffer-substring-no-properties beg end))
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	 (file (or file
		   (condition-case nil
		       (org-entry-get beg "TABLE_EXPORT_FILE" t)
		     (error nil))))
	 (format (or format
		     (condition-case nil
			 (org-entry-get beg "TABLE_EXPORT_FORMAT" t)
		       (error nil))))
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	 buf deffmt-readable)
    (unless file
      (setq file (read-file-name "Export table to: "))
      (unless (or (not (file-exists-p file))
		  (y-or-n-p (format "Overwrite file %s? " file)))
	(error "Abort")))
    (if (file-directory-p file)
	(error "This is a directory path, not a file"))
    (if (equal (file-truename file)
	       (file-truename (buffer-file-name)))
	(error "Please specify a file name that is different from current"))
    (unless format
      (setq deffmt-readable org-table-export-default-format)
      (while (string-match "\t" deffmt-readable)
	(setq deffmt-readable (replace-match "\\t" t t deffmt-readable)))
      (while (string-match "\n" deffmt-readable)
	(setq deffmt-readable (replace-match "\\n" t t deffmt-readable)))
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      (setq format (org-completing-read
		    "Format: "
		    '("orgtbl-to-tsv" "orgtbl-to-csv"
		      "orgtbl-to-latex" "orgtbl-to-html"
		      "orgtbl-to-generic" "orgtbl-to-texinfo"
		      "orgtbl-to-orgtbl") nil nil
		      deffmt-readable)))
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    (if (string-match "\\([^ \t\r\n]+\\)\\( +.*\\)?" format)
	(let* ((transform (intern (match-string 1 format)))
	       (params (if (match-end 2)
			   (read (concat "(" (match-string 2 format) ")"))))
	       (skip (plist-get params :skip))
	       (skipcols (plist-get params :skipcols))
	       (lines (nthcdr (or skip 0) (org-split-string txt "[ \t]*\n[ \t]*")))
	       (lines (org-table-clean-before-export lines))
	       (i0 (if org-table-clean-did-remove-column 2 1))
	       (table (mapcar
		       (lambda (x)
			 (if (string-match org-table-hline-regexp x)
			     'hline
			   (org-remove-by-index
			    (org-split-string (org-trim x) "\\s-*|\\s-*")
			    skipcols i0)))
		       lines))
	       (fun (if (= i0 2) 'cdr 'identity))
	       (org-table-last-alignment
		(org-remove-by-index (funcall fun org-table-last-alignment)
				     skipcols i0))
	       (org-table-last-column-widths
		(org-remove-by-index (funcall fun org-table-last-column-widths)
				     skipcols i0)))

	  (unless (fboundp transform)
	    (error "No such transformation function %s" transform))
	  (setq txt (funcall transform table params))

	  (with-current-buffer (find-file-noselect file)
	    (setq buf (current-buffer))
	    (erase-buffer)
	    (fundamental-mode)
	    (insert txt "\n")
	    (save-buffer))
	  (kill-buffer buf)
	  (message "Export done."))
      (error "TABLE_EXPORT_FORMAT invalid"))))

(defvar org-table-aligned-begin-marker (make-marker)
  "Marker at the beginning of the table last aligned.
Used to check if cursor still is in that table, to minimize realignment.")
(defvar org-table-aligned-end-marker (make-marker)
  "Marker at the end of the table last aligned.
Used to check if cursor still is in that table, to minimize realignment.")
(defvar org-table-last-alignment nil
  "List of flags for flushright alignment, from the last re-alignment.
This is being used to correctly align a single field after TAB or RET.")
(defvar org-table-last-column-widths nil
  "List of max width of fields in each column.
This is being used to correctly align a single field after TAB or RET.")
(defvar org-table-formula-debug nil
  "Non-nil means, debug table formulas.
When nil, simply write \"#ERROR\" in corrupted fields.")
(make-variable-buffer-local 'org-table-formula-debug)
(defvar org-table-overlay-coordinates nil
  "Overlay coordinates after each align of a table.")
(make-variable-buffer-local 'org-table-overlay-coordinates)

(defvar org-last-recalc-line nil)
(defconst org-narrow-column-arrow "=>"
  "Used as display property in narrowed table columns.")

(defun org-table-align ()
  "Align the table at point by aligning all vertical bars."
  (interactive)
  (let* (
	 ;; Limits of table
	 (beg (org-table-begin))
	 (end (org-table-end))
	 ;; Current cursor position
	 (linepos (org-current-line))
	 (colpos (org-table-current-column))
	 (winstart (window-start))
	 (winstartline (org-current-line (min winstart (1- (point-max)))))
	 lines (new "") lengths l typenums ty fields maxfields i
	 column
	 (indent "") cnt frac
	 rfmt hfmt
	 (spaces '(1 . 1))
	 (sp1 (car spaces))
	 (sp2 (cdr spaces))
	 (rfmt1 (concat
		 (make-string sp2 ?\ ) "%%%s%ds" (make-string sp1 ?\ ) "|"))
	 (hfmt1 (concat
		 (make-string sp2 ?-) "%s" (make-string sp1 ?-) "+"))
	 emptystrings links dates emph narrow fmax f1 len c e)
    (untabify beg end)
    (remove-text-properties beg end '(org-cwidth t org-dwidth t display t))
    ;; Check if we have links or dates
    (goto-char beg)
    (setq links (re-search-forward org-bracket-link-regexp end t))
    (goto-char beg)
    (setq emph (and org-hide-emphasis-markers
		    (re-search-forward org-emph-re end t)))
    (goto-char beg)
    (setq dates (and org-display-custom-times
		     (re-search-forward org-ts-regexp-both end t)))
    ;; Make sure the link properties are right
    (when links (goto-char beg) (while (org-activate-bracket-links end)))
    ;; Make sure the date properties are right
    (when dates (goto-char beg) (while (org-activate-dates end)))
    (when emph (goto-char beg) (while (org-do-emphasis-faces end)))

    ;; Check if we are narrowing any columns
    (goto-char beg)
    (setq narrow (and org-format-transports-properties-p
		      (re-search-forward "<[0-9]+>" end t)))
    ;; Get the rows
    (setq lines (org-split-string
		 (buffer-substring beg end) "\n"))
    ;; Store the indentation of the first line
    (if (string-match "^ *" (car lines))
	(setq indent (make-string (- (match-end 0) (match-beginning 0)) ?\ )))
    ;; Mark the hlines by setting the corresponding element to nil
    ;; At the same time, we remove trailing space.
    (setq lines (mapcar (lambda (l)
			  (if (string-match "^ *|-" l)
			      nil
			    (if (string-match "[ \t]+$" l)
				(substring l 0 (match-beginning 0))
			      l)))
			lines))
    ;; Get the data fields by splitting the lines.
    (setq fields (mapcar
		  (lambda (l)
		      (org-split-string l " *| *"))
		  (delq nil (copy-sequence lines))))
    ;; How many fields in the longest line?
    (condition-case nil
	(setq maxfields (apply 'max (mapcar 'length fields)))
      (error
       (kill-region beg end)
       (org-table-create org-table-default-size)
       (error "Empty table - created default table")))
    ;; A list of empty strings to fill any short rows on output
    (setq emptystrings (make-list maxfields ""))
    ;; Check for special formatting.
    (setq i -1)
    (while (< (setq i (1+ i)) maxfields)   ;; Loop over all columns
      (setq column (mapcar (lambda (x) (or (nth i x) "")) fields))
      ;; Check if there is an explicit width specified
      (when narrow
	(setq c column fmax nil)
	(while c
	  (setq e (pop c))
	  (if (and (stringp e) (string-match "^<\\([0-9]+\\)>$" e))
	      (setq fmax (string-to-number (match-string 1 e)) c nil)))
	;; Find fields that are wider than fmax, and shorten them
	(when fmax
	  (loop for xx in column do
		(when (and (stringp xx)
			   (> (org-string-width xx) fmax))
		  (org-add-props xx nil
		    'help-echo
		    (concat "Clipped table field, use C-c ` to edit. Full value is:\n" (org-no-properties (copy-sequence xx))))
		  (setq f1 (min fmax (or (string-match org-bracket-link-regexp xx) fmax)))
		  (unless (> f1 1)
		    (error "Cannot narrow field starting with wide link \"%s\""
			   (match-string 0 xx)))
		  (add-text-properties f1 (length xx) (list 'org-cwidth t) xx)
		  (add-text-properties (- f1 2) f1
				       (list 'display org-narrow-column-arrow)
				       xx)))))
      ;; Get the maximum width for each column
      (push (apply 'max 1 (mapcar 'org-string-width column)) lengths)
      ;; Get the fraction of numbers, to decide about alignment of the column
      (setq cnt 0 frac 0.0)
      (loop for x in column do
	    (if (equal x "")
		nil
	      (setq frac ( / (+ (* frac cnt)
				(if (string-match org-table-number-regexp x) 1 0))
			     (setq cnt (1+ cnt))))))
      (push (>= frac org-table-number-fraction) typenums))
    (setq lengths (nreverse lengths) typenums (nreverse typenums))

    ;; Store the alignment of this table, for later editing of single fields
    (setq org-table-last-alignment typenums
	  org-table-last-column-widths lengths)

    ;; With invisible characters, `format' does not get the field width right
    ;; So we need to make these fields wide by hand.
    (when (or links emph)
      (loop for i from 0 upto (1- maxfields) do
	    (setq len (nth i lengths))
	    (loop for j from 0 upto (1- (length fields)) do
		  (setq c (nthcdr i (car (nthcdr j fields))))
		  (if (and (stringp (car c))
			   (text-property-any 0 (length (car c)) 'invisible 'org-link (car c))
;			   (string-match org-bracket-link-regexp (car c))
			   (< (org-string-width (car c)) len))
		      (setcar c (concat (car c) (make-string (- len (org-string-width (car c))) ?\ )))))))

    ;; Compute the formats needed for output of the table
    (setq rfmt (concat indent "|") hfmt (concat indent "|"))
    (while (setq l (pop lengths))
      (setq ty (if (pop typenums) "" "-")) ; number types flushright
      (setq rfmt (concat rfmt (format rfmt1 ty l))
	    hfmt (concat hfmt (format hfmt1 (make-string l ?-)))))
    (setq rfmt (concat rfmt "\n")
	  hfmt (concat (substring hfmt 0 -1) "|\n"))

    (setq new (mapconcat
	       (lambda (l)
		 (if l (apply 'format rfmt
			      (append (pop fields) emptystrings))
		   hfmt))
	       lines ""))
    ;; Replace the old one
    (delete-region beg end)
    (move-marker end nil)
    (move-marker org-table-aligned-begin-marker (point))
    (insert new)
    (move-marker org-table-aligned-end-marker (point))
    (when (and orgtbl-mode (not (org-mode-p)))
      (goto-char org-table-aligned-begin-marker)
      (while (org-hide-wide-columns org-table-aligned-end-marker)))
    ;; Try to move to the old location
    (goto-line winstartline)
    (setq winstart (point-at-bol))
    (goto-line linepos)
    (set-window-start (selected-window) winstart 'noforce)
    (org-table-goto-column colpos)
    (and org-table-overlay-coordinates (org-table-overlay-coordinates))
    (setq org-table-may-need-update nil)
    ))









(defun org-table-begin (&optional table-type)
  "Find the beginning of the table and return its position.
With argument TABLE-TYPE, go to the beginning of a table.el-type table."
  (save-excursion
    (if (not (re-search-backward
	      (if table-type org-table-any-border-regexp
		org-table-border-regexp)
	      nil t))
	(progn (goto-char (point-min)) (point))
      (goto-char (match-beginning 0))
      (beginning-of-line 2)
      (point))))

(defun org-table-end (&optional table-type)
  "Find the end of the table and return its position.
With argument TABLE-TYPE, go to the end of a table.el-type table."
  (save-excursion
    (if (not (re-search-forward
	      (if table-type org-table-any-border-regexp
		org-table-border-regexp)
	      nil t))
	(goto-char (point-max))
      (goto-char (match-beginning 0)))
    (point-marker)))

(defun org-table-justify-field-maybe (&optional new)
  "Justify the current field, text to left, number to right.
Optional argument NEW may specify text to replace the current field content."
  (cond
   ((and (not new) org-table-may-need-update)) ; Realignment will happen anyway
   ((org-at-table-hline-p))
   ((and (not new)
	 (or (not (equal (marker-buffer org-table-aligned-begin-marker)
			 (current-buffer)))
	     (< (point) org-table-aligned-begin-marker)
	     (>= (point) org-table-aligned-end-marker)))
    ;; This is not the same table, force a full re-align
    (setq org-table-may-need-update t))
   (t ;; realign the current field, based on previous full realign
    (let* ((pos (point)) s
	   (col (org-table-current-column))
	   (num (if (> col 0) (nth (1- col) org-table-last-alignment)))
	   l f n o e)
      (when (> col 0)
	(skip-chars-backward "^|\n")
	(if (looking-at " *\\([^|\n]*?\\) *\\(|\\|$\\)")
	    (progn
	      (setq s (match-string 1)
		    o (match-string 0)
		    l (max 1 (- (match-end 0) (match-beginning 0) 3))
		    e (not (= (match-beginning 2) (match-end 2))))
	      (setq f (format (if num " %%%ds %s" " %%-%ds %s")
			      l (if e "|" (setq org-table-may-need-update t) ""))
		    n (format f s))
	      (if new
		  (if (<= (length new) l)      ;; FIXME: length -> str-width?
		      (setq n (format f new))
		    (setq n (concat new "|") org-table-may-need-update t)))
	      (or (equal n o)
		  (let (org-table-may-need-update)
		    (replace-match n t t))))
	  (setq org-table-may-need-update t))
	(goto-char pos))))))

(defun org-table-next-field ()
  "Go to the next field in the current table, creating new lines as needed.
Before doing so, re-align the table if necessary."
  (interactive)
  (org-table-maybe-eval-formula)
  (org-table-maybe-recalculate-line)
  (if (and org-table-automatic-realign
	   org-table-may-need-update)
      (org-table-align))
  (let ((end (org-table-end)))
    (if (org-at-table-hline-p)
	(end-of-line 1))
    (condition-case nil
	(progn
	  (re-search-forward "|" end)
	  (if (looking-at "[ \t]*$")
	      (re-search-forward "|" end))
	  (if (and (looking-at "-")
		   org-table-tab-jumps-over-hlines
		   (re-search-forward "^[ \t]*|\\([^-]\\)" end t))
	      (goto-char (match-beginning 1)))
	  (if (looking-at "-")
	      (progn
		(beginning-of-line 0)
		(org-table-insert-row 'below))
	    (if (looking-at " ") (forward-char 1))))
      (error
       (org-table-insert-row 'below)))))

(defun org-table-previous-field ()
  "Go to the previous field in the table.
Before doing so, re-align the table if necessary."
  (interactive)
  (org-table-justify-field-maybe)
  (org-table-maybe-recalculate-line)
  (if (and org-table-automatic-realign
	   org-table-may-need-update)
      (org-table-align))
  (if (org-at-table-hline-p)
      (end-of-line 1))
  (re-search-backward "|" (org-table-begin))
  (re-search-backward "|" (org-table-begin))
  (while (looking-at "|\\(-\\|[ \t]*$\\)")
    (re-search-backward "|" (org-table-begin)))
  (if (looking-at "| ?")
      (goto-char (match-end 0))))

(defun org-table-next-row ()
  "Go to the next row (same column) in the current table.
Before doing so, re-align the table if necessary."
  (interactive)
  (org-table-maybe-eval-formula)
  (org-table-maybe-recalculate-line)
  (if (or (looking-at "[ \t]*$")
	  (save-excursion (skip-chars-backward " \t") (bolp)))
      (newline)
    (if (and org-table-automatic-realign
	     org-table-may-need-update)
	(org-table-align))
    (let ((col (org-table-current-column)))
      (beginning-of-line 2)
      (if (or (not (org-at-table-p))
	      (org-at-table-hline-p))
	  (progn
	    (beginning-of-line 0)
	    (org-table-insert-row 'below)))
      (org-table-goto-column col)
      (skip-chars-backward "^|\n\r")
      (if (looking-at " ") (forward-char 1)))))

(defun org-table-copy-down (n)
  "Copy a field down in the current column.
If the field at the cursor is empty, copy into it the content of the nearest
non-empty field above.  With argument N, use the Nth non-empty field.
If the current field is not empty, it is copied down to the next row, and
the cursor is moved with it.  Therefore, repeating this command causes the
column to be filled row-by-row.
If the variable `org-table-copy-increment' is non-nil and the field is an
integer or a timestamp, it will be incremented while copying.  In the case of
a timestamp, if the cursor is on the year, change the year.  If it is on the
month or the day, change that.  Point will stay on the current date field
in order to easily repeat the interval."
  (interactive "p")
  (let* ((colpos (org-table-current-column))
	 (col (current-column))
	 (field (org-table-get-field))
	 (non-empty (string-match "[^ \t]" field))
	 (beg (org-table-begin))
868
	 (orig-n n)
869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884
	 txt)
    (org-table-check-inside-data-field)
    (if non-empty
	(progn
	  (setq txt (org-trim field))
	  (org-table-next-row)
	  (org-table-blank-field))
      (save-excursion
	(setq txt
	      (catch 'exit
		(while (progn (beginning-of-line 1)
			      (re-search-backward org-table-dataline-regexp
						  beg t))
		  (org-table-goto-column colpos t)
		  (if (and (looking-at
			    "|[ \t]*\\([^| \t][^|]*?\\)[ \t]*|")
885
			   (<= (setq n (1- n)) 0))
886 887 888 889
		      (throw 'exit (match-string 1))))))))
    (if txt
	(progn
	  (if (and org-table-copy-increment
890 891 892
		   (not (equal orig-n 0))
		   (string-match "^[0-9]+$" txt)
		   (< (string-to-number txt) 100000000))
893 894 895 896
	      (setq txt (format "%d" (+ (string-to-number txt) 1))))
	  (insert txt)
	  (org-move-to-column col)
	  (if (and org-table-copy-increment (org-at-timestamp-p t))
897
	      (org-timestamp-up-day)
898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646
	    (org-table-maybe-recalculate-line))
	  (org-table-align)
	  (org-move-to-column col))
      (error "No non-empty field found"))))

(defun org-table-check-inside-data-field ()
  "Is point inside a table data field?
I.e. not on a hline or before the first or after the last column?
This actually throws an error, so it aborts the current command."
  (if (or (not (org-at-table-p))
	  (= (org-table-current-column) 0)
	  (org-at-table-hline-p)
	  (looking-at "[ \t]*$"))
      (error "Not in table data field")))

(defvar org-table-clip nil
  "Clipboard for table regions.")

(defun org-table-blank-field ()
  "Blank the current table field or active region."
  (interactive)
  (org-table-check-inside-data-field)
  (if (and (interactive-p) (org-region-active-p))
      (let (org-table-clip)
	(org-table-cut-region (region-beginning) (region-end)))
    (skip-chars-backward "^|")
    (backward-char 1)
    (if (looking-at "|[^|\n]+")
	(let* ((pos (match-beginning 0))
	       (match (match-string 0))
	       (len (org-string-width match)))
	  (replace-match (concat "|" (make-string (1- len) ?\ )))
	  (goto-char (+ 2 pos))
	  (substring match 1)))))

(defun org-table-get-field (&optional n replace)
  "Return the value of the field in column N of current row.
N defaults to current field.
If REPLACE is a string, replace field with this value.  The return value
is always the old value."
  (and n (org-table-goto-column n))
  (skip-chars-backward "^|\n")
  (backward-char 1)
  (if (looking-at "|[^|\r\n]*")
      (let* ((pos (match-beginning 0))
	     (val (buffer-substring (1+ pos) (match-end 0))))
	(if replace
	    (replace-match (concat "|" replace) t t))
	(goto-char (min (point-at-eol) (+ 2 pos)))
	val)
    (forward-char 1) ""))

(defun org-table-field-info (arg)
  "Show info about the current field, and highlight any reference at point."
  (interactive "P")
  (org-table-get-specials)
  (save-excursion
    (let* ((pos (point))
	   (col (org-table-current-column))
	   (cname (car (rassoc (int-to-string col) org-table-column-names)))
	   (name (car (rassoc (list (org-current-line) col)
			      org-table-named-field-locations)))
	   (eql (org-table-get-stored-formulas))
	   (dline (org-table-current-dline))
	   (ref (format "@%d$%d" dline col))
	   (ref1 (org-table-convert-refs-to-an ref))
	   (fequation (or (assoc name eql) (assoc ref eql)))
	   (cequation (assoc (int-to-string col) eql))
	   (eqn (or fequation cequation)))
      (goto-char pos)
      (condition-case nil
	  (org-table-show-reference 'local)
	(error nil))
      (message "line @%d, col $%s%s, ref @%d$%d or %s%s%s"
	       dline col
	       (if cname (concat " or $" cname) "")
	       dline col ref1
	       (if name (concat " or $" name) "")
	       ;; FIXME: formula info not correct if special table line
	       (if eqn
		   (concat ", formula: "
			   (org-table-formula-to-user
			    (concat
			     (if (string-match "^[$@]"(car eqn)) "" "$")
			     (car eqn) "=" (cdr eqn))))
		 "")))))

(defun org-table-current-column ()
  "Find out which column we are in."
  (save-excursion
    (let ((cnt 0) (pos (point)))
      (beginning-of-line 1)
      (while (search-forward "|" pos t)
	(setq cnt (1+ cnt)))
      cnt)))

(defun org-table-current-dline ()
  "Find out what table data line we are in.
Only datalins count for this."
  (interactive)
  (if (interactive-p) (org-table-check-inside-data-field))
  (save-excursion
    (let ((cnt 0) (pos (point)))
      (goto-char (org-table-begin))
      (while (<= (point) pos)
	(if (looking-at org-table-dataline-regexp) (setq cnt (1+ cnt)))
	(beginning-of-line 2))
      (if (interactive-p) (message "This is table line %d" cnt))
      cnt)))

(defun org-table-goto-column (n &optional on-delim force)
  "Move the cursor to the Nth column in the current table line.
With optional argument ON-DELIM, stop with point before the left delimiter
of the field.
If there are less than N fields, just go to after the last delimiter.
However, when FORCE is non-nil, create new columns if necessary."
  (interactive "p")
  (let ((pos (point-at-eol)))
    (beginning-of-line 1)
    (when (> n 0)
      (while (and (> (setq n (1- n)) -1)
		  (or (search-forward "|" pos t)
		      (and force
			   (progn (end-of-line 1)
				  (skip-chars-backward "^|")
				  (insert " | "))))))
;                                  (backward-char 2) t)))))
      (when (and force (not (looking-at ".*|")))
	(save-excursion (end-of-line 1) (insert " | ")))
      (if on-delim
	  (backward-char 1)
	(if (looking-at " ") (forward-char 1))))))


(defun org-table-insert-column ()
  "Insert a new column into the table."
  (interactive)
  (if (not (org-at-table-p))
      (error "Not at a table"))
  (org-table-find-dataline)
  (let* ((col (max 1 (org-table-current-column)))
	 (beg (org-table-begin))
	 (end (org-table-end))
	 ;; Current cursor position
	 (linepos (org-current-line))
	 (colpos col))
    (goto-char beg)
    (while (< (point) end)
      (if (org-at-table-hline-p)
	  nil
	(org-table-goto-column col t)
	(insert "|   "))
      (beginning-of-line 2))
    (move-marker end nil)
    (goto-line linepos)
    (org-table-goto-column colpos)
    (org-table-align)
    (org-table-fix-formulas "$" nil (1- col) 1)))

(defun org-table-find-dataline ()
  "Find a dataline in the current table, which is needed for column commands."
  (if (and (org-at-table-p)
	   (not (org-at-table-hline-p)))
      t
    (let ((col (current-column))
	  (end (org-table-end)))
      (org-move-to-column col)
      (while (and (< (point) end)
		  (or (not (= (current-column) col))
		      (org-at-table-hline-p)))
	(beginning-of-line 2)
	(org-move-to-column col))
      (if (and (org-at-table-p)
	       (not (org-at-table-hline-p)))
	  t
	(error
	 "Please position cursor in a data line for column operations")))))

(defun org-table-delete-column ()
  "Delete a column from the table."
  (interactive)
  (if (not (org-at-table-p))
      (error "Not at a table"))
  (org-table-find-dataline)
  (org-table-check-inside-data-field)
  (let* ((col (org-table-current-column))
	 (beg (org-table-begin))
	 (end (org-table-end))
	 ;; Current cursor position
	 (linepos (org-current-line))
	 (colpos col))
    (goto-char beg)
    (while (< (point) end)
      (if (org-at-table-hline-p)
	  nil
	(org-table-goto-column col t)
	(and (looking-at "|[^|\n]+|")
	     (replace-match "|")))
      (beginning-of-line 2))
    (move-marker end nil)
    (goto-line linepos)
    (org-table-goto-column colpos)
    (org-table-align)
    (org-table-fix-formulas "$" (list (cons (number-to-string col) "INVALID"))
			    col -1 col)))

(defun org-table-move-column-right ()
  "Move column to the right."
  (interactive)
  (org-table-move-column nil))
(defun org-table-move-column-left ()
  "Move column to the left."
  (interactive)
  (org-table-move-column 'left))

(defun org-table-move-column (&optional left)
  "Move the current column to the right.  With arg LEFT, move to the left."
  (interactive "P")
  (if (not (org-at-table-p))
      (error "Not at a table"))
  (org-table-find-dataline)
  (org-table-check-inside-data-field)
  (let* ((col (org-table-current-column))
	 (col1 (if left (1- col) col))
	 (beg (org-table-begin))
	 (end (org-table-end))
	 ;; Current cursor position
	 (linepos (org-current-line))
	 (colpos (if left (1- col) (1+ col))))
    (if (and left (= col 1))
	(error "Cannot move column further left"))
    (if (and (not left) (looking-at "[^|\n]*|[^|\n]*$"))
	(error "Cannot move column further right"))
    (goto-char beg)
    (while (< (point) end)
      (if (org-at-table-hline-p)
	  nil
	(org-table-goto-column col1 t)
	(and (looking-at "|\\([^|\n]+\\)|\\([^|\n]+\\)|")
	     (replace-match "|\\2|\\1|")))
      (beginning-of-line 2))
    (move-marker end nil)
    (goto-line linepos)
    (org-table-goto-column colpos)
    (org-table-align)
    (org-table-fix-formulas
     "$" (list (cons (number-to-string col) (number-to-string colpos))
	       (cons (number-to-string colpos) (number-to-string col))))))

(defun org-table-move-row-down ()
  "Move table row down."
  (interactive)
  (org-table-move-row nil))
(defun org-table-move-row-up ()
  "Move table row up."
  (interactive)
  (org-table-move-row 'up))

(defun org-table-move-row (&optional up)
  "Move the current table line down.  With arg UP, move it up."
  (interactive "P")
  (let* ((col (current-column))
	 (pos (point))
	 (hline1p (save-excursion (beginning-of-line 1)
				  (looking-at org-table-hline-regexp)))
	 (dline1 (org-table-current-dline))
	 (dline2 (+ dline1 (if up -1 1)))
	 (tonew (if up 0 2))
	 txt hline2p)
    (beginning-of-line tonew)
    (unless (org-at-table-p)
      (goto-char pos)
      (error "Cannot move row further"))
    (setq hline2p (looking-at org-table-hline-regexp))
    (goto-char pos)
    (beginning-of-line 1)
    (setq pos (point))
    (setq txt (buffer-substring (point) (1+ (point-at-eol))))
    (delete-region (point) (1+ (point-at-eol)))
    (beginning-of-line tonew)
    (insert txt)
    (beginning-of-line 0)
    (org-move-to-column col)
    (unless (or hline1p hline2p)
      (org-table-fix-formulas
       "@" (list (cons (number-to-string dline1) (number-to-string dline2))
		 (cons (number-to-string dline2) (number-to-string dline1)))))))

(defun org-table-insert-row (&optional arg)
  "Insert a new row above the current line into the table.
With prefix ARG, insert below the current line."
  (interactive "P")
  (if (not (org-at-table-p))
      (error "Not at a table"))
  (let* ((line (buffer-substring (point-at-bol) (point-at-eol)))
	 (new (org-table-clean-line line)))
    ;; Fix the first field if necessary
    (if (string-match "^[ \t]*| *[#$] *|" line)
	(setq new (replace-match (match-string 0 line) t t new)))
    (beginning-of-line (if arg 2 1))
    (let (org-table-may-need-update) (insert-before-markers new "\n"))
    (beginning-of-line 0)
    (re-search-forward "| ?" (point-at-eol) t)
    (and (or org-table-may-need-update org-table-overlay-coordinates)
	 (org-table-align))
    (org-table-fix-formulas "@" nil (1- (org-table-current-dline)) 1)))

(defun org-table-insert-hline (&optional above)
  "Insert a horizontal-line below the current line into the table.
With prefix ABOVE, insert above the current line."
  (interactive "P")
  (if (not (org-at-table-p))
      (error "Not at a table"))
  (let ((line (org-table-clean-line
	       (buffer-substring (point-at-bol) (point-at-eol))))
	(col (current-column)))
    (while (string-match "|\\( +\\)|" line)
      (setq line (replace-match
		  (concat "+" (make-string (- (match-end 1) (match-beginning 1))
					   ?-) "|") t t line)))
    (and (string-match "\\+" line) (setq line (replace-match "|" t t line)))
    (beginning-of-line (if above 1 2))
    (insert line "\n")
    (beginning-of-line (if above 1 -1))
    (org-move-to-column col)
    (and org-table-overlay-coordinates (org-table-align))))

(defun org-table-hline-and-move (&optional same-column)
  "Insert a hline and move to the row below that line."
  (interactive "P")
  (let ((col (org-table-current-column)))
    (org-table-maybe-eval-formula)
    (org-table-maybe-recalculate-line)
    (org-table-insert-hline)
    (end-of-line 2)
    (if (looking-at "\n[ \t]*|-")
	(progn (insert "\n|") (org-table-align))
      (org-table-next-field))
    (if same-column (org-table-goto-column col))))

(defun org-table-clean-line (s)
  "Convert a table line S into a string with only \"|\" and space.
In particular, this does handle wide and invisible characters."
  (if (string-match "^[ \t]*|-" s)
      ;; It's a hline, just map the characters
      (setq s (mapconcat (lambda (x) (if (member x '(?| ?+)) "|" " ")) s ""))
    (while (string-match "|\\([ \t]*?[^ \t\r\n|][^\r\n|]*\\)|" s)
      (setq s (replace-match
	       (concat "|" (make-string (org-string-width (match-string 1 s))
					?\ ) "|")
	       t t s)))
    s))

(defun org-table-kill-row ()
  "Delete the current row or horizontal line from the table."
  (interactive)
  (if (not (org-at-table-p))
      (error "Not at a table"))
  (let ((col (current-column))
	(dline (org-table-current-dline)))
    (kill-region (point-at-bol) (min (1+ (point-at-eol)) (point-max)))
    (if (not (org-at-table-p)) (beginning-of-line 0))
    (org-move-to-column col)
    (org-table-fix-formulas "@" (list (cons (number-to-string dline) "INVALID"))
			    dline -1 dline)))

(defun org-table-sort-lines (with-case &optional sorting-type)
  "Sort table lines according to the column at point.

The position of point indicates the column to be used for
sorting, and the range of lines is the range between the nearest
horizontal separator lines, or the entire table of no such lines
exist.  If point is before the first column, you will be prompted
for the sorting column.  If there is an active region, the mark
specifies the first line and the sorting column, while point
should be in the last line to be included into the sorting.

The command then prompts for the sorting type which can be
alphabetically, numerically, or by time (as given in a time stamp
in the field).  Sorting in reverse order is also possible.

With prefix argument WITH-CASE, alphabetic sorting will be case-sensitive.

If SORTING-TYPE is specified when this function is called from a Lisp
program, no prompting will take place.  SORTING-TYPE must be a character,
any of (?a ?A ?n ?N ?t ?T) where the capital letter indicate that sorting
should be done in reverse order."
  (interactive "P")
  (let* ((thisline (org-current-line))
	 (thiscol (org-table-current-column))
	 beg end bcol ecol tend tbeg column lns pos)
    (when (equal thiscol 0)
      (if (interactive-p)
	  (setq thiscol
		(string-to-number
		 (read-string "Use column N for sorting: ")))
	(setq thiscol 1))
      (org-table-goto-column thiscol))
    (org-table-check-inside-data-field)
    (if (org-region-active-p)
	(progn
	  (setq beg (region-beginning) end (region-end))
	  (goto-char beg)
	  (setq column (org-table-current-column)
		beg (point-at-bol))
	  (goto-char end)
	  (setq end (point-at-bol 2)))
      (setq column (org-table-current-column)
	    pos (point)
	    tbeg (org-table-begin)
	    tend (org-table-end))
      (if (re-search-backward org-table-hline-regexp tbeg t)
	  (setq beg (point-at-bol 2))
	(goto-char tbeg)
	(setq beg (point-at-bol 1)))
      (goto-char pos)
      (if (re-search-forward org-table-hline-regexp tend t)
	  (setq end (point-at-bol 1))
	(goto-char tend)
	(setq end (point-at-bol))))
    (setq beg (move-marker (make-marker) beg)
	  end (move-marker (make-marker) end))
    (untabify beg end)
    (goto-char beg)
    (org-table-goto-column column)
    (skip-chars-backward "^|")
    (setq bcol (current-column))
    (org-table-goto-column (1+ column))
    (skip-chars-backward "^|")
    (setq ecol (1- (current-column)))
    (org-table-goto-column column)
    (setq lns (mapcar (lambda(x) (cons
				  (org-sort-remove-invisible
				   (nth (1- column)
					(org-split-string x "[ \t]*|[ \t]*")))
				  x))
		      (org-split-string (buffer-substring beg end) "\n")))
    (setq lns (org-do-sort lns "Table" with-case sorting-type))
    (delete-region beg end)
    (move-marker beg nil)
    (move-marker end nil)
    (insert (mapconcat 'cdr lns "\n") "\n")
    (goto-line thisline)
    (org-table-goto-column thiscol)
    (message "%d lines sorted, based on column %d" (length lns) column)))


(defun org-table-cut-region (beg end)
  "Copy region in table to the clipboard and blank all relevant fields."
  (interactive "r")
  (org-table-copy-region beg end 'cut))

(defun org-table-copy-region (beg end &optional cut)
  "Copy rectangular region in table to clipboard.
A special clipboard is used which can only be accessed
with `org-table-paste-rectangle'."
  (interactive "rP")
  (let* (l01 c01 l02 c02 l1 c1 l2 c2 ic1 ic2
	 region cols
	 (rpl (if cut "  " nil)))
    (goto-char beg)
    (org-table-check-inside-data-field)
    (setq l01 (org-current-line)
	  c01 (org-table-current-column))
    (goto-char end)
    (org-table-check-inside-data-field)
    (setq l02 (org-current-line)
	  c02 (org-table-current-column))
    (setq l1 (min l01 l02) l2 (max l01 l02)
	  c1 (min c01 c02) c2 (max c01 c02))
    (catch 'exit
      (while t
	(catch 'nextline
	  (if (> l1 l2) (throw 'exit t))
	  (goto-line l1)
	  (if (org-at-table-hline-p) (throw 'nextline (setq l1 (1+ l1))))
	  (setq cols nil ic1 c1 ic2 c2)
	  (while (< ic1 (1+ ic2))
	    (push (org-table-get-field ic1 rpl) cols)
	    (setq ic1 (1+ ic1)))
	  (push (nreverse cols) region)
	  (setq l1 (1+ l1)))))
    (setq org-table-clip (nreverse region))
    (if cut (org-table-align))
    org-table-clip))

(defun org-table-paste-rectangle ()
  "Paste a rectangular region into a table.
The upper right corner ends up in the current field.  All involved fields
will be overwritten.  If the rectangle does not fit into the present table,
the table is enlarged as needed.  The process ignores horizontal separator
lines."
  (interactive)
  (unless (and org-table-clip (listp org-table-clip))
    (error "First cut/copy a region to paste!"))
  (org-table-check-inside-data-field)
  (let* ((clip org-table-clip)
	 (line (org-current-line))
	 (col (org-table-current-column))
	 (org-enable-table-editor t)
	 (org-table-automatic-realign nil)
	 c cols field)
    (while (setq cols (pop clip))
      (while (org-at-table-hline-p) (beginning-of-line 2))
      (if (not (org-at-table-p))
	  (progn (end-of-line 0) (org-table-next-field)))
      (setq c col)
      (while (setq field (pop cols))
	(org-table-goto-column c nil 'force)
	(org-table-get-field nil field)
	(setq c (1+ c)))
      (beginning-of-line 2))
    (goto-line line)
    (org-table-goto-column col)
    (org-table-align)))

(defun org-table-convert ()
  "Convert from `org-mode' table to table.el and back.
Obviously, this only works within limits.  When an Org-mode table is
converted to table.el, all horizontal separator lines get lost, because
table.el uses these as cell boundaries and has no notion of horizontal lines.
A table.el table can be converted to an Org-mode table only if it does not
do row or column spanning.  Multiline cells will become multiple cells.
Beware, Org-mode does not test if the table can be successfully converted - it
blindly applies a recipe that works for simple tables."
  (interactive)
  (require 'table)
  (if (org-at-table.el-p)
      ;; convert to Org-mode table
      (let ((beg (move-marker (make-marker) (org-table-begin t)))
	    (end (move-marker (make-marker) (org-table-end t))))
	(table-unrecognize-region beg end)
	(goto-char beg)
	(while (re-search-forward "^\\([ \t]*\\)\\+-.*\n" end t)
	  (replace-match ""))
	(goto-char beg))
    (if (org-at-table-p)
	;; convert to table.el table
	(let ((beg (move-marker (make-marker) (org-table-begin)))
	      (end (move-marker (make-marker) (org-table-end))))
	  ;; first, get rid of all horizontal lines
	  (goto-char beg)
	  (while (re-search-forward "^\\([ \t]*\\)|-.*\n" end t)
	    (replace-match ""))
	  ;; insert a hline before first
	  (goto-char beg)
	  (org-table-insert-hline 'above)
	  (beginning-of-line -1)
	  ;; insert a hline after each line
	  (while (progn (beginning-of-line 3) (< (point) end))
	    (org-table-insert-hline))
	  (goto-char beg)
	  (setq end (move-marker end (org-table-end)))
	  ;; replace "+" at beginning and ending of hlines
	  (while (re-search-forward "^\\([ \t]*\\)|-" end t)
	    (replace-match "\\1+-"))
	  (goto-char beg)
	  (while (re-search-forward "-|[ \t]*$" end t)
	    (replace-match "-+"))
	  (goto-char beg)))))

(defun org-table-wrap-region (arg)
  "Wrap several fields in a column like a paragraph.
This is useful if you'd like to spread the contents of a field over several
lines, in order to keep the table compact.

If there is an active region, and both point and mark are in the same column,
the text in the column is wrapped to minimum width for the given number of
lines.  Generally, this makes the table more compact.  A prefix ARG may be
used to change the number of desired lines.  For example, `C-2 \\[org-table-wrap]'
formats the selected text to two lines.  If the region was longer than two
lines, the remaining lines remain empty.  A negative prefix argument reduces
the current number of lines by that amount.  The wrapped text is pasted back
into the table.  If you formatted it to more lines than it was before, fields
further down in the table get overwritten - so you might need to make space in
the table first.

If there is no region, the current field is split at the cursor position and
the text fragment to the right of the cursor is prepended to the field one
line down.

If there is no region, but you specify a prefix ARG, the current field gets
blank, and the content is appended to the field above."
  (interactive "P")
  (org-table-check-inside-data-field)
  (if (org-region-active-p)
      ;; There is a region:  fill as a paragraph
      (let* ((beg (region-beginning))
	     (cline (save-excursion (goto-char beg) (org-current-line)))
	     (ccol (save-excursion (goto-char beg) (org-table-current-column)))
	     nlines)
	(org-table-cut-region (region-beginning) (region-end))
	(if (> (length (car org-table-clip)) 1)
	    (error "Region must be limited to single column"))
	(setq nlines (if arg
			 (if (< arg 1)
			     (+ (length org-table-clip) arg)
			   arg)
		       (length org-table-clip)))
	(setq org-table-clip
	      (mapcar 'list (org-wrap (mapconcat 'car org-table-clip " ")
				      nil nlines)))
	(goto-line cline)
	(org-table-goto-column ccol)
	(org-table-paste-rectangle))
    ;; No region, split the current field at point
    (unless (org-get-alist-option org-M-RET-may-split-line 'table)
      (skip-chars-forward "^\r\n|"))
    (if arg
	;; combine with field above
	(let ((s (org-table-blank-field))
	      (col (org-table-current-column)))
	  (beginning-of-line 0)
	  (while (org-at-table-hline-p) (beginning-of-line 0))
	  (org-table-goto-column col)
	  (skip-chars-forward "^|")
	  (skip-chars-backward " ")
	  (insert " " (org-trim s))
	  (org-table-align))
      ;;  split field
      (if (looking-at "\\([^|]+\\)+|")
	  (let ((s (match-string 1)))
	    (replace-match " |")
	    (goto-char (match-beginning 0))
	    (org-table-next-row)
	    (insert (org-trim s) " ")
	    (org-table-align))
	(org-table-next-row)))))

(defvar org-field-marker nil)

(defun org-table-edit-field (arg)
  "Edit table field in a different window.
This is mainly useful for fields that contain hidden parts.
When called with a \\[universal-argument] prefix, just make the full field visible so that
it can be edited in place."
  (interactive "P")
  (if arg
      (let ((b (save-excursion (skip-chars-backward "^|") (point)))
	    (e (save-excursion (skip-chars-forward "^|\r\n") (point))))
	(remove-text-properties b e '(org-cwidth t invisible t
						 display t intangible t))
	(if (and (boundp 'font-lock-mode) font-lock-mode)
	    (font-lock-fontify-block)))
    (let ((pos (move-marker (make-marker) (point)))
	  (field (org-table-get-field))
	  (cw (current-window-configuration))
	  p)
      (org-switch-to-buffer-other-window "*Org tmp*")
      (erase-buffer)
      (insert "#\n# Edit field and finish with C-c C-c\n#\n")
      (let ((org-inhibit-startup t)) (org-mode))
      (goto-char (setq p (point-max)))
      (insert (org-trim field))
      (remove-text-properties p (point-max)
			      '(invisible t org-cwidth t display t
					  intangible t))
      (goto-char p)
      (org-set-local 'org-finish-function 'org-table-finish-edit-field)
      (org-set-local 'org-window-configuration cw)
      (org-set-local 'org-field-marker pos)
      (message "Edit and finish with C-c C-c"))))

(defun org-table-finish-edit-field ()
  "Finish editing a table data field.
Remove all newline characters, insert the result into the table, realign
the table and kill the editing buffer."
  (let ((pos org-field-marker)
	(cw org-window-configuration)
	(cb (current-buffer))
	text)
    (goto-char (point-min))
    (while (re-search-forward "^#.*\n?" nil t) (replace-match ""))
    (while (re-search-forward "\\([ \t]*\n[ \t]*\\)+" nil t)
      (replace-match " "))
    (setq text (org-trim (buffer-string)))
    (set-window-configuration cw)
    (kill-buffer cb)
    (select-window (get-buffer-window (marker-buffer pos)))
    (goto-char pos)
    (move-marker pos nil)
    (org-table-check-inside-data-field)
    (org-table-get-field nil text)
    (org-table-align)
    (message "New field value inserted")))


















(defvar org-timecnt) ; dynamically scoped parameter

(defun org-table-sum (&optional beg end nlast)
  "Sum numbers in region of current table column.
The result will be displayed in the echo area, and will be available
as kill to be inserted with \\[yank].

If there is an active region, it is interpreted as a rectangle and all
numbers in that rectangle will be summed.  If there is no active
region and point is located in a table column, sum all numbers in that
column.

If at least one number looks like a time HH:MM or HH:MM:SS, all other
numbers are assumed to be times as well (in decimal hours) and the
numbers are added as such.

If NLAST is a number, only the NLAST fields will actually be summed."
  (interactive)
  (save-excursion
    (let (col (org-timecnt 0) diff h m s org-table-clip)
      (cond
       ((and beg end))   ; beg and end given explicitly
       ((org-region-active-p)
	(setq beg (region-beginning) end (region-end)))
       (t
	(setq col (org-table-current-column))
	(goto-char (org-table-begin))
	(unless (re-search-forward "^[ \t]*|[^-]" nil t)
	  (error "No table data"))
	(org-table-goto-column col)
	(setq beg (point))
	(goto-char (org-table-end))
	(unless (re-search-backward "^[ \t]*|[^-]" nil t)
	  (error "No table data"))
	(org-table-goto-column col)
	(setq end (point))))
      (let* ((items (apply 'append (org-table-copy-region beg end)))
	     (items1 (cond ((not nlast) items)
			   ((>= nlast (length items)) items)
			   (t (setq items (reverse items))
			      (setcdr (nthcdr (1- nlast) items) nil)
			      (nreverse items))))
	     (numbers (delq nil (mapcar 'org-table-get-number-for-summing
					items1)))
	     (res (apply '+ numbers))
	     (sres (if (= org-timecnt 0)
1647
		       (number-to-string res)
1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880
		     (setq diff (* 3600 res)
			   h (floor (/ diff 3600)) diff (mod diff 3600)
			   m (floor (/ diff 60)) diff (mod diff 60)
			   s diff)
		     (format "%d:%02d:%02d" h m s))))
	(kill-new sres)
	(if (interactive-p)
	    (message "%s"
		     (substitute-command-keys
		      (format "Sum of %d items: %-20s     (\\[yank] will insert result into buffer)"
			      (length numbers) sres))))
	sres))))

(defun org-table-get-number-for-summing (s)
  (let (n)
    (if (string-match "^ *|? *" s)
	(setq s (replace-match "" nil nil s)))
    (if (string-match " *|? *$" s)
	(setq s (replace-match "" nil nil s)))
    (setq n (string-to-number s))
    (cond
     ((and (string-match "0" s)
	   (string-match "\\`[-+ \t0.edED]+\\'" s)) 0)
     ((string-match "\\`[ \t]+\\'" s)         nil)
     ((string-match "\\`\\([0-9]+\\):\\([0-9]+\\)\\(:\\([0-9]+\\)\\)?\\'" s)
      (let ((h (string-to-number (or (match-string 1 s) "0")))
	    (m (string-to-number (or (match-string 2 s) "0")))
	    (s (string-to-number (or (match-string 4 s) "0"))))
	(if (boundp 'org-timecnt) (setq org-timecnt (1+ org-timecnt)))
	(* 1.0 (+ h (/ m 60.0) (/ s 3600.0)))))
     ((equal n 0)                             nil)
     (t n))))

(defun org-table-current-field-formula (&optional key noerror)
  "Return the formula active for the current field.
Assumes that specials are in place.
If KEY is given, return the key to this formula.
Otherwise return the formula preceeded with \"=\" or \":=\"."
  (let* ((name (car (rassoc (list (org-current-line)
				  (org-table-current-column))
			    org-table-named-field-locations)))
	 (col (org-table-current-column))
	 (scol (int-to-string col))
	 (ref (format "@%d$%d" (org-table-current-dline) col))
	 (stored-list (org-table-get-stored-formulas noerror))
	 (ass (or (assoc name stored-list)
		  (assoc ref stored-list)
		  (assoc scol stored-list))))
    (if key
	(car ass)
      (if ass (concat (if (string-match "^[0-9]+$" (car ass)) "=" ":=")
		      (cdr ass))))))

(defun org-table-get-formula (&optional equation named)
  "Read a formula from the minibuffer, offer stored formula as default.
When NAMED is non-nil, look for a named equation."
  (let* ((stored-list (org-table-get-stored-formulas))
	 (name (car (rassoc (list (org-current-line)
				  (org-table-current-column))
			    org-table-named-field-locations)))
	 (ref (format "@%d$%d" (org-table-current-dline)
		      (org-table-current-column)))
	 (refass (assoc ref stored-list))
	 (scol (if named
		   (if name name ref)
		 (int-to-string (org-table-current-column))))
	 (dummy (and (or name refass) (not named)
		     (not (y-or-n-p "Replace field formula with column formula? " ))
		     (error "Abort")))
	 (name (or name ref))
	 (org-table-may-need-update nil)
	 (stored (cdr (assoc scol stored-list)))
	 (eq (cond
	      ((and stored equation (string-match "^ *=? *$" equation))
	       stored)
	      ((stringp equation)
	       equation)
	      (t (org-table-formula-from-user
		  (read-string
		   (org-table-formula-to-user
		    (format "%s formula %s%s="
			    (if named "Field" "Column")
			    (if (member (string-to-char scol) '(?$ ?@)) "" "$")
			    scol))
		   (if stored (org-table-formula-to-user stored) "")
		   'org-table-formula-history
		   )))))
	 mustsave)
    (when (not (string-match "\\S-" eq))
      ;; remove formula
      (setq stored-list (delq (assoc scol stored-list) stored-list))
      (org-table-store-formulas stored-list)
      (error "Formula removed"))
    (if (string-match "^ *=?" eq) (setq eq (replace-match "" t t eq)))
    (if (string-match " *$" eq) (setq eq (replace-match "" t t eq)))
    (if (and name (not named))
	;; We set the column equation, delete the named one.
	(setq stored-list (delq (assoc name stored-list) stored-list)
	      mustsave t))
    (if stored
	(setcdr (assoc scol stored-list) eq)
      (setq stored-list (cons (cons scol eq) stored-list)))
    (if (or mustsave (not (equal stored eq)))
	(org-table-store-formulas stored-list))
    eq))

(defun org-table-store-formulas (alist)
  "Store the list of formulas below the current table."
  (setq alist (sort alist 'org-table-formula-less-p))
  (save-excursion
    (goto-char (org-table-end))
    (if (looking-at "\\([ \t]*\n\\)*#\\+TBLFM:\\(.*\n?\\)")
	(progn
	  ;; don't overwrite TBLFM, we might use text properties to store stuff
	  (goto-char (match-beginning 2))
	  (delete-region (match-beginning 2) (match-end 0)))
      (insert "#+TBLFM:"))
    (insert " "
	    (mapconcat (lambda (x)
			 (concat
			  (if (equal (string-to-char (car x)) ?@) "" "$")
			  (car x) "=" (cdr x)))
		       alist "::")
	    "\n")))

(defsubst org-table-formula-make-cmp-string (a)
  (when (string-match "^\\(@\\([0-9]+\\)\\)?\\(\\$?\\([0-9]+\\)\\)?\\(\\$?[a-zA-Z0-9]+\\)?" a)
    (concat
     (if (match-end 2) (format "@%05d" (string-to-number (match-string 2 a))) "")
     (if (match-end 4) (format "$%05d" (string-to-number (match-string 4 a))) "")
     (if (match-end 5) (concat "@@" (match-string 5 a))))))

(defun org-table-formula-less-p (a b)
  "Compare two formulas for sorting."
  (let ((as (org-table-formula-make-cmp-string (car a)))
	(bs (org-table-formula-make-cmp-string (car b))))
    (and as bs (string< as bs))))

(defun org-table-get-stored-formulas (&optional noerror)
  "Return an alist with the stored formulas directly after current table."
  (interactive)
  (let (scol eq eq-alist strings string seen)
    (save-excursion
      (goto-char (org-table-end))
      (when (looking-at "\\([ \t]*\n\\)*#\\+TBLFM: *\\(.*\\)")
	(setq strings (org-split-string (match-string 2) " *:: *"))
	(while (setq string (pop strings))
	  (when (string-match "\\`\\(@[0-9]+\\$[0-9]+\\|\\$\\([a-zA-Z0-9]+\\)\\) *= *\\(.*[^ \t]\\)" string)
	    (setq scol (if (match-end 2)
			   (match-string 2 string)
			 (match-string 1 string))
		  eq (match-string 3 string)
		  eq-alist (cons (cons scol eq) eq-alist))
	    (if (member scol seen)
                (if noerror
                    (progn
                      (message "Double definition `$%s=' in TBLFM line, please fix by hand" scol)
                      (ding)
                      (sit-for 2))
                  (error "Double definition `$%s=' in TBLFM line, please fix by hand" scol))
	      (push scol seen))))))
    (nreverse eq-alist)))

(defun org-table-fix-formulas (key replace &optional limit delta remove)
  "Modify the equations after the table structure has been edited.
KEY is \"@\" or \"$\".  REPLACE is an alist of numbers to replace.
For all numbers larger than LIMIT, shift them by DELTA."
  (save-excursion
    (goto-char (org-table-end))
    (when (looking-at "#\\+TBLFM:")
      (let ((re (concat key "\\([0-9]+\\)"))
	    (re2
	     (when remove
	       (if (equal key "$")
		   (format "\\(@[0-9]+\\)?\\$%d=.*?\\(::\\|$\\)" remove)
		 (format "@%d\\$[0-9]+=.*?\\(::\\|$\\)" remove))))
	    s n a)
	(when remove
	  (while (re-search-forward re2 (point-at-eol) t)
	    (replace-match "")))
	(while (re-search-forward re (point-at-eol) t)
	  (setq s (match-string 1) n (string-to-number s))
	  (cond
	   ((setq a (assoc s replace))
	    (replace-match (concat key (cdr a)) t t))
	   ((and limit (> n limit))
	    (replace-match (concat key (int-to-string (+ n delta))) t t))))))))

(defun org-table-get-specials ()
  "Get the column names and local parameters for this table."
  (save-excursion
    (let ((beg (org-table-begin)) (end (org-table-end))
	  names name fields fields1 field cnt
	  c v l line col types dlines hlines)
      (setq org-table-column-names nil
	    org-table-local-parameters nil
	    org-table-named-field-locations nil
	    org-table-current-begin-line nil
	    org-table-current-begin-pos nil
	    org-table-current-line-types nil)
      (goto-char beg)
      (when (re-search-forward "^[ \t]*| *! *\\(|.*\\)" end t)
	(setq names (org-split-string (match-string 1) " *| *")
	      cnt 1)
	(while (setq name (pop names))
	  (setq cnt (1+ cnt))
	  (if (string-match "^[a-zA-Z][a-zA-Z0-9]*$" name)
	      (push (cons name (int-to-string cnt)) org-table-column-names))))
      (setq org-table-column-names (nreverse org-table-column-names))
      (setq org-table-column-name-regexp
	    (concat "\\$\\(" (mapconcat 'car org-table-column-names "\\|") "\\)\\>"))
      (goto-char beg)
      (while (re-search-forward "^[ \t]*| *\\$ *\\(|.*\\)" end t)
	(setq fields (org-split-string (match-string 1) " *| *"))
	(while (setq field (pop fields))
	  (if (string-match "^\\([a-zA-Z][_a-zA-Z0-9]*\\|%\\) *= *\\(.*\\)" field)
	      (push (cons (match-string 1 field) (match-string 2 field))
		    org-table-local-parameters))))
      (goto-char beg)
      (while (re-search-forward "^[ \t]*| *\\([_^]\\) *\\(|.*\\)" end t)
	(setq c (match-string 1)
	      fields (org-split-string (match-string 2) " *| *"))
	(save-excursion
	  (beginning-of-line (if (equal c "_") 2 0))
	  (setq line (org-current-line) col 1)
	  (and (looking-at "^[ \t]*|[^|]*\\(|.*\\)")
	       (setq fields1 (org-split-string (match-string 1) " *| *"))))
	(while (and fields1 (setq field (pop fields)))
	  (setq v (pop fields1) col (1+ col))
	  (when (and (stringp field) (stringp v)
		     (string-match "^[a-zA-Z][a-zA-Z0-9]*$" field))
	      (push (cons field v) org-table-local-parameters)
	      (push (list field line col) org-table-named-field-locations))))
1881
      ;; Analyse the line types
1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082