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58cf70d3 | 1 | ;;; ses.el -- Simple Emacs Spreadsheet -*- coding: utf-8 -*- |
7ed9159a | 2 | |
acaf905b | 3 | ;; Copyright (C) 2002-2012 Free Software Foundation, Inc. |
7ed9159a | 4 | |
df961c06 | 5 | ;; Author: Jonathan Yavner <jyavner@member.fsf.org> |
2bb63e81 VB |
6 | ;; Maintainer: Vincent Belaïche <vincentb1@users.sourceforge.net> |
7 | ;; Keywords: spreadsheet Dijkstra | |
7ed9159a JY |
8 | |
9 | ;; This file is part of GNU Emacs. | |
10 | ||
eb3fa2cf | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
7ed9159a | 12 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
7ed9159a JY |
15 | |
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
7ed9159a | 23 | |
58cf70d3 SM |
24 | ;;; Commentary: |
25 | ||
7ed9159a | 26 | ;;; To-do list: |
58cf70d3 | 27 | |
90ca8b49 | 28 | ;; * split (catch 'cycle ...) call back into one or more functions |
94be2532 JY |
29 | ;; * Use $ or … for truncated fields |
30 | ;; * Add command to make a range of columns be temporarily invisible. | |
31 | ;; * Allow paste of one cell to a range of cells -- copy formula to each. | |
7ed9159a | 32 | ;; * Do something about control characters & octal codes in cell print |
94be2532 | 33 | ;; areas. Use string-width? |
7ed9159a | 34 | ;; * Input validation functions. How specified? |
7ed9159a JY |
35 | ;; * Faces (colors & styles) in print cells. |
36 | ;; * Move a column by dragging its letter in the header line. | |
37 | ;; * Left-margin column for row number. | |
38 | ;; * Move a row by dragging its number in the left-margin. | |
39 | ||
90ca8b49 VB |
40 | ;;; Cycle detection |
41 | ||
42 | ;; Cycles used to be detected by stationarity of ses--deferred-recalc. This was | |
43 | ;; working fine in most cases, however failed in some cases of several path | |
44 | ;; racing together. | |
45 | ;; | |
4bdf2ad2 | 46 | ;; The current algorithm is based on Dijkstra's algorithm. The cycle length is |
90ca8b49 VB |
47 | ;; stored in some cell property. In order not to reset in all cells such |
48 | ;; property at each update, the cycle length is stored in this property along | |
49 | ;; with some update attempt id that is incremented at each update. The current | |
50 | ;; update id is ses--Dijkstra-attempt-nb. In case there is a cycle the cycle | |
51 | ;; length diverge to infinite so it will exceed ses--Dijkstra-weight-bound at | |
52 | ;; some point of time that allows detection. Otherwise it converges to the | |
53 | ;; longest path length in the update tree. | |
54 | ||
58cf70d3 SM |
55 | |
56 | ;;; Code: | |
57 | ||
7ed9159a | 58 | (require 'unsafep) |
3076b24e | 59 | (eval-when-compile (require 'cl)) |
7ed9159a JY |
60 | |
61 | ||
58cf70d3 SM |
62 | ;;---------------------------------------------------------------------------- |
63 | ;; User-customizable variables | |
64 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
65 | |
66 | (defgroup ses nil | |
51616cd5 | 67 | "Simple Emacs Spreadsheet." |
cf20dee0 | 68 | :tag "SES" |
7ed9159a JY |
69 | :group 'applications |
70 | :prefix "ses-" | |
71 | :version "21.1") | |
72 | ||
73 | (defcustom ses-initial-size '(1 . 1) | |
74 | "Initial size of a new spreadsheet, as a cons (NUMROWS . NUMCOLS)." | |
75 | :group 'ses | |
76 | :type '(cons (integer :tag "numrows") (integer :tag "numcols"))) | |
77 | ||
9e2d29b6 | 78 | (defcustom ses-initial-column-width 7 |
7ed9159a JY |
79 | "Initial width of columns in a new spreadsheet." |
80 | :group 'ses | |
81 | :type '(integer :match (lambda (widget value) (> value 0)))) | |
82 | ||
83 | (defcustom ses-initial-default-printer "%.7g" | |
84 | "Initial default printer for a new spreadsheet." | |
85 | :group 'ses | |
86 | :type '(choice string | |
87 | (list :tag "Parenthesized string" string) | |
88 | function)) | |
89 | ||
90 | (defcustom ses-after-entry-functions '(forward-char) | |
58cf70d3 SM |
91 | "Things to do after entering a value into a cell. |
92 | An abnormal hook that usually runs a cursor-movement function. | |
93 | Each function is called with ARG=1." | |
7ed9159a JY |
94 | :group 'ses |
95 | :type 'hook | |
96 | :options '(forward-char backward-char next-line previous-line)) | |
97 | ||
98 | (defcustom ses-mode-hook nil | |
99 | "Hook functions to be run upon entering SES mode." | |
100 | :group 'ses | |
101 | :type 'hook) | |
102 | ||
103 | ||
58cf70d3 SM |
104 | ;;---------------------------------------------------------------------------- |
105 | ;; Global variables and constants | |
106 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
107 | |
108 | (defvar ses-read-cell-history nil | |
109 | "List of formulas that have been typed in.") | |
110 | ||
111 | (defvar ses-read-printer-history nil | |
112 | "List of printer functions that have been typed in.") | |
113 | ||
94be2532 JY |
114 | (easy-menu-define ses-header-line-menu nil |
115 | "Context menu when mouse-3 is used on the header-line in an SES buffer." | |
116 | '("SES header row" | |
117 | ["Set current row" ses-set-header-row t] | |
58cf70d3 | 118 | ["Unset row" ses-unset-header-row (> ses--header-row 0)])) |
7ed9159a | 119 | |
94be2532 JY |
120 | (defconst ses-mode-map |
121 | (let ((keys `("\C-c\M-\C-l" ses-reconstruct-all | |
122 | "\C-c\C-l" ses-recalculate-all | |
123 | "\C-c\C-n" ses-renarrow-buffer | |
124 | "\C-c\C-c" ses-recalculate-cell | |
125 | "\C-c\M-\C-s" ses-sort-column | |
126 | "\C-c\M-\C-h" ses-set-header-row | |
127 | "\C-c\C-t" ses-truncate-cell | |
128 | "\C-c\C-j" ses-jump | |
129 | "\C-c\C-p" ses-read-default-printer | |
130 | "\M-\C-l" ses-reprint-all | |
131 | [?\S-\C-l] ses-reprint-all | |
132 | [header-line down-mouse-3] ,ses-header-line-menu | |
133 | [header-line mouse-2] ses-sort-column-click)) | |
134 | (newmap (make-sparse-keymap))) | |
135 | (while keys | |
136 | (define-key (1value newmap) (car keys) (cadr keys)) | |
137 | (setq keys (cddr keys))) | |
138 | newmap) | |
139 | "Local keymap for Simple Emacs Spreadsheet.") | |
7ed9159a | 140 | |
94be2532 JY |
141 | (easy-menu-define ses-menu ses-mode-map |
142 | "Menu bar menu for SES." | |
143 | '("SES" | |
144 | ["Insert row" ses-insert-row (ses-in-print-area)] | |
145 | ["Delete row" ses-delete-row (ses-in-print-area)] | |
146 | ["Insert column" ses-insert-column (ses-in-print-area)] | |
147 | ["Delete column" ses-delete-column (ses-in-print-area)] | |
148 | ["Set column printer" ses-read-column-printer t] | |
149 | ["Set column width" ses-set-column-width t] | |
150 | ["Set default printer" ses-read-default-printer t] | |
151 | ["Jump to cell" ses-jump t] | |
152 | ["Set cell printer" ses-read-cell-printer t] | |
153 | ["Recalculate cell" ses-recalculate-cell t] | |
154 | ["Truncate cell display" ses-truncate-cell t] | |
155 | ["Export values" ses-export-tsv t] | |
156 | ["Export formulas" ses-export-tsf t])) | |
157 | ||
158 | (defconst ses-mode-edit-map | |
159 | (let ((keys '("\C-c\C-r" ses-insert-range | |
160 | "\C-c\C-s" ses-insert-ses-range | |
161 | [S-mouse-3] ses-insert-range-click | |
162 | [C-S-mouse-3] ses-insert-ses-range-click | |
163 | "\M-\C-i" lisp-complete-symbol)) | |
164 | (newmap (make-sparse-keymap))) | |
165 | (set-keymap-parent newmap minibuffer-local-map) | |
166 | (while keys | |
1e3b6bec | 167 | (define-key newmap (pop keys) (pop keys))) |
94be2532 | 168 | newmap) |
7ed9159a JY |
169 | "Local keymap for SES minibuffer cell-editing.") |
170 | ||
94be2532 JY |
171 | ;Local keymap for SES print area |
172 | (defalias 'ses-mode-print-map | |
173 | (let ((keys '([backtab] backward-char | |
174 | [tab] ses-forward-or-insert | |
2bb63e81 | 175 | "\C-i" ses-forward-or-insert ; Needed for ses-coverage.el? |
94be2532 JY |
176 | "\M-o" ses-insert-column |
177 | "\C-o" ses-insert-row | |
178 | "\C-m" ses-edit-cell | |
179 | "\M-k" ses-delete-column | |
180 | "\M-y" ses-yank-pop | |
181 | "\C-k" ses-delete-row | |
182 | "\C-j" ses-append-row-jump-first-column | |
183 | "\M-h" ses-mark-row | |
184 | "\M-H" ses-mark-column | |
185 | "\C-d" ses-clear-cell-forward | |
186 | "\C-?" ses-clear-cell-backward | |
187 | "(" ses-read-cell | |
188 | "\"" ses-read-cell | |
189 | "'" ses-read-symbol | |
190 | "=" ses-edit-cell | |
4eb3897c | 191 | "c" ses-recalculate-cell |
94be2532 JY |
192 | "j" ses-jump |
193 | "p" ses-read-cell-printer | |
4eb3897c | 194 | "t" ses-truncate-cell |
94be2532 JY |
195 | "w" ses-set-column-width |
196 | "x" ses-export-keymap | |
197 | "\M-p" ses-read-column-printer)) | |
198 | (repl '(;;We'll replace these wherever they appear in the keymap | |
199 | clipboard-kill-region ses-kill-override | |
200 | end-of-line ses-end-of-line | |
201 | kill-line ses-delete-row | |
202 | kill-region ses-kill-override | |
203 | open-line ses-insert-row)) | |
204 | (numeric "0123456789.-") | |
205 | (newmap (make-keymap))) | |
206 | ;;Get rid of printables | |
207 | (suppress-keymap newmap t) | |
208 | ;;These keys insert themselves as the beginning of a numeric value | |
209 | (dotimes (x (length numeric)) | |
210 | (define-key newmap (substring numeric x (1+ x)) 'ses-read-cell)) | |
211 | ;;Override these global functions wherever they're bound | |
212 | (while repl | |
213 | (substitute-key-definition (car repl) (cadr repl) newmap | |
214 | (current-global-map)) | |
215 | (setq repl (cddr repl))) | |
216 | ;;Apparently substitute-key-definition doesn't catch this? | |
217 | (define-key newmap [(menu-bar) edit cut] 'ses-kill-override) | |
218 | ;;Define our other local keys | |
219 | (while keys | |
220 | (define-key newmap (car keys) (cadr keys)) | |
221 | (setq keys (cddr keys))) | |
222 | newmap)) | |
223 | ||
224 | ;;Helptext for ses-mode wants keymap as variable, not function | |
225 | (defconst ses-mode-print-map (symbol-function 'ses-mode-print-map)) | |
226 | ||
227 | ;;Key map used for 'x' key. | |
7ed9159a JY |
228 | (defalias 'ses-export-keymap |
229 | (let ((map (make-sparse-keymap "SES export"))) | |
230 | (define-key map "T" (cons " tab-formulas" 'ses-export-tsf)) | |
231 | (define-key map "t" (cons " tab-values" 'ses-export-tsv)) | |
232 | map)) | |
233 | ||
234 | (defconst ses-print-data-boundary "\n\014\n" | |
58cf70d3 | 235 | "Marker string denoting the boundary between print area and data area.") |
7ed9159a JY |
236 | |
237 | (defconst ses-initial-global-parameters | |
238 | "\n( ;Global parameters (these are read first)\n 2 ;SES file-format\n 1 ;numrows\n 1 ;numcols\n)\n\n" | |
58cf70d3 | 239 | "Initial contents for the three-element list at the bottom of the data area.") |
7ed9159a JY |
240 | |
241 | (defconst ses-initial-file-trailer | |
58cf70d3 | 242 | ";; Local Variables:\n;; mode: ses\n;; End:\n" |
7ed9159a JY |
243 | "Initial contents for the file-trailer area at the bottom of the file.") |
244 | ||
245 | (defconst ses-initial-file-contents | |
2bb63e81 | 246 | (concat " \n" ; One blank cell in print area. |
7ed9159a | 247 | ses-print-data-boundary |
2bb63e81 VB |
248 | "(ses-cell A1 nil nil nil nil)\n" ; One blank cell in data area. |
249 | "\n" ; End-of-row terminator for the one row in data area. | |
7ed9159a JY |
250 | "(ses-column-widths [7])\n" |
251 | "(ses-column-printers [nil])\n" | |
252 | "(ses-default-printer \"%.7g\")\n" | |
253 | "(ses-header-row 0)\n" | |
254 | ses-initial-global-parameters | |
255 | ses-initial-file-trailer) | |
256 | "The initial contents of an empty spreadsheet.") | |
257 | ||
7ed9159a JY |
258 | (defconst ses-box-prop '(:box (:line-width 2 :style released-button)) |
259 | "Display properties to create a raised box for cells in the header line.") | |
260 | ||
261 | (defconst ses-standard-printer-functions | |
262 | '(ses-center ses-center-span ses-dashfill ses-dashfill-span | |
263 | ses-tildefill-span) | |
264 | "List of print functions to be included in initial history of printer | |
265 | functions. None of these standard-printer functions is suitable for use as a | |
266 | column printer or a global-default printer because they invoke the column or | |
267 | default printer and then modify its output.") | |
268 | ||
ddd1c214 JY |
269 | |
270 | ;;---------------------------------------------------------------------------- | |
271 | ;; Local variables and constants | |
272 | ;;---------------------------------------------------------------------------- | |
273 | ||
7ed9159a JY |
274 | (eval-and-compile |
275 | (defconst ses-localvars | |
90ca8b49 | 276 | '(ses--blank-line ses--cells ses--col-printers |
3076b24e | 277 | ses--col-widths ses--curcell ses--curcell-overlay |
90ca8b49 | 278 | ses--default-printer |
3076b24e GM |
279 | ses--deferred-narrow ses--deferred-recalc |
280 | ses--deferred-write ses--file-format | |
90ca8b49 VB |
281 | (ses--header-hscroll . -1) ; Flag for "initial recalc needed" |
282 | ses--header-row ses--header-string ses--linewidth | |
283 | ses--numcols ses--numrows ses--symbolic-formulas | |
3076b24e GM |
284 | ses--data-marker ses--params-marker (ses--Dijkstra-attempt-nb . 0) |
285 | ses--Dijkstra-weight-bound | |
4bdf2ad2 VB |
286 | ;; This list is useful to speed-up clean-up of symbols when |
287 | ;; an area containing renamed cell is deleted. | |
288 | ses--renamed-cell-symb-list | |
90ca8b49 | 289 | ;; Global variables that we override |
94be2532 | 290 | mode-line-process next-line-add-newlines transient-mark-mode) |
3076b24e | 291 | "Buffer-local variables used by SES.") |
7ed9159a | 292 | |
90ca8b49 VB |
293 | (defun ses-set-localvars () |
294 | "Set buffer-local and initialize some SES variables." | |
7ed9159a | 295 | (dolist (x ses-localvars) |
90ca8b49 VB |
296 | (cond |
297 | ((symbolp x) | |
298 | (set (make-local-variable x) nil)) | |
299 | ((consp x) | |
3076b24e GM |
300 | (set (make-local-variable (car x)) (cdr x))) |
301 | (t (error "Unexpected elements `%S' in list `ses-localvars'" x)))))) | |
302 | ||
303 | (eval-when-compile ; silence compiler | |
304 | (ses-set-localvars)) | |
7ed9159a | 305 | |
2bb63e81 | 306 | ;;; This variable is documented as being permitted in file-locals: |
4eb3897c JY |
307 | (put 'ses--symbolic-formulas 'safe-local-variable 'consp) |
308 | ||
ddd1c214 JY |
309 | (defconst ses-paramlines-plist |
310 | '(ses--col-widths -5 ses--col-printers -4 ses--default-printer -3 | |
311 | ses--header-row -2 ses--file-format 1 ses--numrows 2 | |
312 | ses--numcols 3) | |
313 | "Offsets from 'Global parameters' line to various parameter lines in the | |
314 | data area of a spreadsheet.") | |
315 | ||
7ed9159a | 316 | |
58cf70d3 SM |
317 | ;; |
318 | ;; "Side-effect variables". They are set in one function, altered in | |
319 | ;; another as a side effect, then read back by the first, as a way of | |
320 | ;; passing back more than one value. These declarations are just to make | |
321 | ;; the compiler happy, and to conform to standard Emacs-Lisp practice (I | |
322 | ;; think the make-local-variable trick above is cleaner). | |
323 | ;; | |
7ed9159a JY |
324 | |
325 | (defvar ses-relocate-return nil | |
326 | "Set by `ses-relocate-formula' and `ses-relocate-range', read by | |
327 | `ses-relocate-all'. Set to 'delete if a cell-reference was deleted from a | |
328 | formula--so the formula needs recalculation. Set to 'range if the size of a | |
329 | `ses-range' was changed--so both the formula's value and list of dependents | |
330 | need to be recalculated.") | |
331 | ||
332 | (defvar ses-call-printer-return nil | |
333 | "Set to t if last cell printer invoked by `ses-call-printer' requested | |
4bdf2ad2 | 334 | left-justification of the result. Set to error-signal if `ses-call-printer' |
f1a0e330 | 335 | encountered an error during printing. Otherwise nil.") |
7ed9159a JY |
336 | |
337 | (defvar ses-start-time nil | |
338 | "Time when current operation started. Used by `ses-time-check' to decide | |
339 | when to emit a progress message.") | |
340 | ||
341 | ||
58cf70d3 SM |
342 | ;;---------------------------------------------------------------------------- |
343 | ;; Macros | |
344 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
345 | |
346 | (defmacro ses-get-cell (row col) | |
347 | "Return the cell structure that stores information about cell (ROW,COL)." | |
94be2532 | 348 | `(aref (aref ses--cells ,row) ,col)) |
7ed9159a | 349 | |
58cf70d3 SM |
350 | ;; We might want to use defstruct here, but cells are explicitly used as |
351 | ;; arrays in ses-set-cell, so we'd need to fix this first. --Stef | |
90ca8b49 VB |
352 | (defsubst ses-make-cell (&optional symbol formula printer references |
353 | property-list) | |
354 | (vector symbol formula printer references property-list)) | |
58cf70d3 | 355 | |
7ed9159a JY |
356 | (defmacro ses-cell-symbol (row &optional col) |
357 | "From a CELL or a pair (ROW,COL), get the symbol that names the local-variable holding its value. (0,0) => A1." | |
358 | `(aref ,(if col `(ses-get-cell ,row ,col) row) 0)) | |
5e5d49b6 | 359 | (put 'ses-cell-symbol 'safe-function t) |
7ed9159a JY |
360 | |
361 | (defmacro ses-cell-formula (row &optional col) | |
362 | "From a CELL or a pair (ROW,COL), get the function that computes its value." | |
363 | `(aref ,(if col `(ses-get-cell ,row ,col) row) 1)) | |
364 | ||
365 | (defmacro ses-cell-printer (row &optional col) | |
366 | "From a CELL or a pair (ROW,COL), get the function that prints its value." | |
367 | `(aref ,(if col `(ses-get-cell ,row ,col) row) 2)) | |
368 | ||
369 | (defmacro ses-cell-references (row &optional col) | |
370 | "From a CELL or a pair (ROW,COL), get the list of symbols for cells whose | |
371 | functions refer to its value." | |
372 | `(aref ,(if col `(ses-get-cell ,row ,col) row) 3)) | |
373 | ||
90ca8b49 VB |
374 | (defun ses-cell-property-get-fun (property-name cell) |
375 | ;; To speed up property fetching, each time a property is found it is placed | |
376 | ;; in the first position. This way, after the first get, the full property | |
377 | ;; list needs to be scanned only when the property does not exist for that | |
378 | ;; cell. | |
379 | (let* ((plist (aref cell 4)) | |
380 | (ret (plist-member plist property-name))) | |
381 | (if ret | |
382 | ;; Property was found. | |
383 | (let ((val (cadr ret))) | |
384 | (if (eq ret plist) | |
385 | ;; Property found is already in the first position, so just return | |
386 | ;; its value. | |
387 | val | |
388 | ;; Property is not in the first position, the following will move it | |
389 | ;; there before returning its value. | |
390 | (let ((next (cddr ret))) | |
391 | (if next | |
392 | (progn | |
393 | (setcdr ret (cdr next)) | |
394 | (setcar ret (car next))) | |
395 | (setcdr (last plist 1) nil))) | |
396 | (aset cell 4 | |
397 | `(,property-name ,val ,@plist)) | |
398 | val))))) | |
399 | ||
400 | (defmacro ses-cell-property-get (property-name row &optional col) | |
4bdf2ad2 | 401 | "Get property named PROPERTY-NAME from a CELL or a pair (ROW,COL). |
90ca8b49 VB |
402 | |
403 | When COL is omitted, CELL=ROW is a cell object. When COL is | |
404 | present ROW and COL are the integer coordinates of the cell of | |
405 | interest." | |
406 | (declare (debug t)) | |
407 | `(ses-cell-property-get-fun | |
408 | ,property-name | |
409 | ,(if col `(ses-get-cell ,row ,col) row))) | |
410 | ||
411 | (defun ses-cell-property-delq-fun (property-name cell) | |
412 | (let ((ret (plist-get (aref cell 4) property-name))) | |
413 | (if ret | |
414 | (setcdr ret (cddr ret))))) | |
415 | ||
416 | (defun ses-cell-property-set-fun (property-name property-val cell) | |
417 | (let* ((plist (aref cell 4)) | |
418 | (ret (plist-member plist property-name))) | |
419 | (if ret | |
420 | (setcar (cdr ret) property-val) | |
421 | (aset cell 4 `(,property-name ,property-val ,@plist))))) | |
422 | ||
423 | (defmacro ses-cell-property-set (property-name property-value row &optional col) | |
424 | "From a CELL or a pair (ROW,COL), set the property value of | |
425 | the corresponding cell with name PROPERTY-NAME to PROPERTY-VALUE." | |
426 | (if property-value | |
427 | `(ses-cell-property-set-fun ,property-name ,property-value | |
428 | ,(if col `(ses-get-cell ,row ,col) row)) | |
429 | `(ses-cell-property-delq-fun ,property-name | |
430 | ,(if col `(ses-get-cell ,row ,col) row)))) | |
431 | ||
432 | (defun ses-cell-property-pop-fun (property-name cell) | |
433 | (let* ((plist (aref cell 4)) | |
434 | (ret (plist-member plist property-name))) | |
435 | (if ret | |
436 | (prog1 (cadr ret) | |
437 | (let ((next (cddr ret))) | |
438 | (if next | |
439 | (progn | |
440 | (setcdr ret (cdr next)) | |
441 | (setcar ret (car next))) | |
442 | (if (eq plist ret) | |
443 | (aset cell 4 nil) | |
444 | (setcdr (last plist 2) nil)))))))) | |
445 | ||
446 | ||
447 | (defmacro ses-cell-property-pop (property-name row &optional col) | |
448 | "From a CELL or a pair (ROW,COL), get and remove the property value of | |
449 | the corresponding cell with name PROPERTY-NAME." | |
450 | `(ses-cell-property-pop-fun ,property-name | |
451 | ,(if col `(ses-get-cell ,row ,col) row))) | |
452 | ||
453 | (defun ses-cell-property-get-handle-fun (property-name cell) | |
454 | (let* ((plist (aref cell 4)) | |
455 | (ret (plist-member plist property-name))) | |
456 | (if ret | |
457 | (if (eq ret plist) | |
458 | (cdr ret) | |
459 | (let ((val (cadr ret)) | |
460 | (next (cddr ret))) | |
461 | (if next | |
462 | (progn | |
463 | (setcdr ret (cdr next)) | |
464 | (setcar ret (car next))) | |
465 | (setcdr (last plist 2) nil)) | |
466 | (setq ret (cons val plist)) | |
467 | (aset cell 4 (cons property-name ret)) | |
468 | ret)) | |
469 | (setq ret (cons nil plist)) | |
470 | (aset cell 4 (cons property-name ret)) | |
471 | ret))) | |
472 | ||
473 | (defmacro ses-cell-property-get-handle (property-name row &optional col) | |
474 | "From a CELL or a pair (ROW,COL), get a cons cell whose car is | |
475 | the property value of the corresponding cell property with name | |
476 | PROPERTY-NAME." | |
477 | `(ses-cell-property-get-handle-fun ,property-name | |
478 | ,(if col `(ses-get-cell ,row ,col) row))) | |
479 | ||
480 | ||
481 | (defalias 'ses-cell-property-handle-car 'car) | |
482 | (defalias 'ses-cell-property-handle-setcar 'setcar) | |
483 | ||
7ed9159a JY |
484 | (defmacro ses-cell-value (row &optional col) |
485 | "From a CELL or a pair (ROW,COL), get the current value for that cell." | |
486 | `(symbol-value (ses-cell-symbol ,row ,col))) | |
487 | ||
488 | (defmacro ses-col-width (col) | |
489 | "Return the width for column COL." | |
94be2532 | 490 | `(aref ses--col-widths ,col)) |
7ed9159a JY |
491 | |
492 | (defmacro ses-col-printer (col) | |
493 | "Return the default printer for column COL." | |
94be2532 | 494 | `(aref ses--col-printers ,col)) |
7ed9159a JY |
495 | |
496 | (defmacro ses-sym-rowcol (sym) | |
4bdf2ad2 VB |
497 | "From a cell-symbol SYM, gets the cons (row . col). A1 => (0 . 0). |
498 | Result is nil if SYM is not a symbol that names a cell." | |
7ed9159a JY |
499 | `(and (symbolp ,sym) (get ,sym 'ses-cell))) |
500 | ||
501 | (defmacro ses-cell (sym value formula printer references) | |
502 | "Load a cell SYM from the spreadsheet file. Does not recompute VALUE from | |
503 | FORMULA, does not reprint using PRINTER, does not check REFERENCES. This is a | |
504 | macro to prevent propagate-on-load viruses. Safety-checking for FORMULA and | |
505 | PRINTER are deferred until first use." | |
506 | (let ((rowcol (ses-sym-rowcol sym))) | |
507 | (ses-formula-record formula) | |
508 | (ses-printer-record printer) | |
509 | (or (atom formula) | |
510 | (eq safe-functions t) | |
511 | (setq formula `(ses-safe-formula ,formula))) | |
512 | (or (not printer) | |
513 | (stringp printer) | |
514 | (eq safe-functions t) | |
515 | (setq printer `(ses-safe-printer ,printer))) | |
94be2532 | 516 | (aset (aref ses--cells (car rowcol)) |
7ed9159a | 517 | (cdr rowcol) |
58cf70d3 | 518 | (ses-make-cell sym formula printer references))) |
7ed9159a JY |
519 | (set sym value) |
520 | sym) | |
521 | ||
522 | (defmacro ses-column-widths (widths) | |
523 | "Load the vector of column widths from the spreadsheet file. This is a | |
524 | macro to prevent propagate-on-load viruses." | |
94be2532 | 525 | (or (and (vectorp widths) (= (length widths) ses--numcols)) |
7ed9159a JY |
526 | (error "Bad column-width vector")) |
527 | ;;To save time later, we also calculate the total width of each line in the | |
528 | ;;print area (excluding the terminating newline) | |
94be2532 JY |
529 | (setq ses--col-widths widths |
530 | ses--linewidth (apply '+ -1 (mapcar '1+ widths)) | |
51616cd5 | 531 | ses--blank-line (concat (make-string ses--linewidth ?\s) "\n")) |
7ed9159a JY |
532 | t) |
533 | ||
534 | (defmacro ses-column-printers (printers) | |
535 | "Load the vector of column printers from the spreadsheet file and checks | |
536 | them for safety. This is a macro to prevent propagate-on-load viruses." | |
94be2532 | 537 | (or (and (vectorp printers) (= (length printers) ses--numcols)) |
7ed9159a | 538 | (error "Bad column-printers vector")) |
94be2532 | 539 | (dotimes (x ses--numcols) |
7ed9159a | 540 | (aset printers x (ses-safe-printer (aref printers x)))) |
94be2532 | 541 | (setq ses--col-printers printers) |
7ed9159a JY |
542 | (mapc 'ses-printer-record printers) |
543 | t) | |
544 | ||
545 | (defmacro ses-default-printer (def) | |
546 | "Load the global default printer from the spreadsheet file and checks it | |
547 | for safety. This is a macro to prevent propagate-on-load viruses." | |
94be2532 | 548 | (setq ses--default-printer (ses-safe-printer def)) |
7ed9159a JY |
549 | (ses-printer-record def) |
550 | t) | |
551 | ||
552 | (defmacro ses-header-row (row) | |
553 | "Load the header row from the spreadsheet file and checks it | |
554 | for safety. This is a macro to prevent propagate-on-load viruses." | |
bd93e3e1 | 555 | (or (and (wholenump row) (or (zerop ses--numrows) (< row ses--numrows))) |
7ed9159a | 556 | (error "Bad header-row")) |
94be2532 | 557 | (setq ses--header-row row) |
7ed9159a JY |
558 | t) |
559 | ||
7ed9159a JY |
560 | (defmacro ses-dorange (curcell &rest body) |
561 | "Execute BODY repeatedly, with the variables `row' and `col' set to each | |
562 | cell in the range specified by CURCELL. The range is available in the | |
563 | variables `minrow', `maxrow', `mincol', and `maxcol'." | |
ddd1c214 | 564 | (declare (indent defun) (debug (form body))) |
7ed9159a JY |
565 | (let ((cur (make-symbol "cur")) |
566 | (min (make-symbol "min")) | |
567 | (max (make-symbol "max")) | |
568 | (r (make-symbol "r")) | |
569 | (c (make-symbol "c"))) | |
570 | `(let* ((,cur ,curcell) | |
571 | (,min (ses-sym-rowcol (if (consp ,cur) (car ,cur) ,cur))) | |
572 | (,max (ses-sym-rowcol (if (consp ,cur) (cdr ,cur) ,cur)))) | |
573 | (let ((minrow (car ,min)) | |
574 | (maxrow (car ,max)) | |
575 | (mincol (cdr ,min)) | |
576 | (maxcol (cdr ,max)) | |
577 | row col) | |
578 | (if (or (> minrow maxrow) (> mincol maxcol)) | |
579 | (error "Empty range")) | |
580 | (dotimes (,r (- maxrow minrow -1)) | |
581 | (setq row (+ ,r minrow)) | |
582 | (dotimes (,c (- maxcol mincol -1)) | |
583 | (setq col (+ ,c mincol)) | |
584 | ,@body)))))) | |
585 | ||
7ed9159a JY |
586 | ;;Support for coverage testing. |
587 | (defmacro 1value (form) | |
588 | "For code-coverage testing, indicate that FORM is expected to always have | |
589 | the same value." | |
590 | form) | |
591 | (defmacro noreturn (form) | |
592 | "For code-coverage testing, indicate that FORM will always signal an error." | |
593 | form) | |
594 | ||
595 | ||
58cf70d3 SM |
596 | ;;---------------------------------------------------------------------------- |
597 | ;; Utility functions | |
598 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
599 | |
600 | (defun ses-vector-insert (array idx new) | |
601 | "Create a new vector which is one larger than ARRAY and has NEW inserted | |
602 | before element IDX." | |
603 | (let* ((len (length array)) | |
604 | (result (make-vector (1+ len) new))) | |
605 | (dotimes (x len) | |
606 | (aset result | |
607 | (if (< x idx) x (1+ x)) | |
608 | (aref array x))) | |
609 | result)) | |
610 | ||
611 | ;;Allow ARRAY to be a symbol for use in buffer-undo-list | |
612 | (defun ses-vector-delete (array idx count) | |
613 | "Create a new vector which is a copy of ARRAY with COUNT objects removed | |
614 | starting at element IDX. ARRAY is either a vector or a symbol whose value | |
615 | is a vector--if a symbol, the new vector is assigned as the symbol's value." | |
616 | (let* ((a (if (arrayp array) array (symbol-value array))) | |
617 | (len (- (length a) count)) | |
618 | (result (make-vector len nil))) | |
619 | (dotimes (x len) | |
620 | (aset result x (aref a (if (< x idx) x (+ x count))))) | |
621 | (if (symbolp array) | |
622 | (set array result)) | |
623 | result)) | |
624 | ||
625 | (defun ses-delete-line (count) | |
626 | "Like `kill-line', but no kill ring." | |
627 | (let ((pos (point))) | |
628 | (forward-line count) | |
629 | (delete-region pos (point)))) | |
630 | ||
631 | (defun ses-printer-validate (printer) | |
4bdf2ad2 | 632 | "Signal an error if PRINTER is not a valid SES cell printer." |
7ed9159a JY |
633 | (or (not printer) |
634 | (stringp printer) | |
635 | (functionp printer) | |
636 | (and (stringp (car-safe printer)) (not (cdr printer))) | |
637 | (error "Invalid printer function")) | |
638 | printer) | |
639 | ||
640 | (defun ses-printer-record (printer) | |
641 | "Add PRINTER to `ses-read-printer-history' if not already there, after first | |
642 | checking that it is a valid printer function." | |
643 | (ses-printer-validate printer) | |
644 | ;;To speed things up, we avoid calling prin1 for the very common "nil" case. | |
645 | (if printer | |
646 | (add-to-list 'ses-read-printer-history (prin1-to-string printer)))) | |
647 | ||
648 | (defun ses-formula-record (formula) | |
4bdf2ad2 | 649 | "If FORMULA is of the form 'symbol, add it to the list of symbolic formulas |
7ed9159a JY |
650 | for this spreadsheet." |
651 | (when (and (eq (car-safe formula) 'quote) | |
652 | (symbolp (cadr formula))) | |
94be2532 | 653 | (add-to-list 'ses--symbolic-formulas |
7ed9159a JY |
654 | (list (symbol-name (cadr formula)))))) |
655 | ||
656 | (defun ses-column-letter (col) | |
4eb3897c JY |
657 | "Return the alphabetic name of column number COL. |
658 | 0-25 become A-Z; 26-701 become AA-ZZ, and so on." | |
659 | (let ((units (char-to-string (+ ?A (% col 26))))) | |
660 | (if (< col 26) | |
2bb63e81 | 661 | units |
4eb3897c | 662 | (concat (ses-column-letter (1- (/ col 26))) units)))) |
7ed9159a JY |
663 | |
664 | (defun ses-create-cell-symbol (row col) | |
665 | "Produce a symbol that names the cell (ROW,COL). (0,0) => 'A1." | |
666 | (intern (concat (ses-column-letter col) (number-to-string (1+ row))))) | |
667 | ||
668 | (defun ses-create-cell-variable-range (minrow maxrow mincol maxcol) | |
669 | "Create buffer-local variables for cells. This is undoable." | |
63f3351c | 670 | (push `(apply ses-destroy-cell-variable-range ,minrow ,maxrow ,mincol ,maxcol) |
7ed9159a JY |
671 | buffer-undo-list) |
672 | (let (sym xrow xcol) | |
673 | (dotimes (row (1+ (- maxrow minrow))) | |
674 | (dotimes (col (1+ (- maxcol mincol))) | |
675 | (setq xrow (+ row minrow) | |
676 | xcol (+ col mincol) | |
677 | sym (ses-create-cell-symbol xrow xcol)) | |
678 | (put sym 'ses-cell (cons xrow xcol)) | |
679 | (make-local-variable sym))))) | |
680 | ||
4bdf2ad2 VB |
681 | (defun ses-create-cell-variable (sym row col) |
682 | "Create a buffer-local variable `SYM' for cell at position (ROW, COL). | |
683 | ||
684 | SYM is the symbol for that variable, ROW and COL are integers for | |
685 | row and column of the cell, with numbering starting from 0. | |
686 | ||
687 | Return nil in case of failure." | |
688 | (unless (local-variable-p sym) | |
689 | (make-local-variable sym) | |
690 | (put sym 'ses-cell (cons row col)))) | |
691 | ||
b6458526 VB |
692 | ;; We do not delete the ses-cell properties for the cell-variables, in |
693 | ;; case a formula that refers to this cell is in the kill-ring and is | |
694 | ;; later pasted back in. | |
7ed9159a JY |
695 | (defun ses-destroy-cell-variable-range (minrow maxrow mincol maxcol) |
696 | "Destroy buffer-local variables for cells. This is undoable." | |
697 | (let (sym) | |
698 | (dotimes (row (1+ (- maxrow minrow))) | |
699 | (dotimes (col (1+ (- maxcol mincol))) | |
4bdf2ad2 VB |
700 | (let ((xrow (+ row minrow)) (xcol (+ col mincol))) |
701 | (setq sym (if (and (< xrow ses--numrows) (< xcol ses--numcols)) | |
702 | (ses-cell-symbol xrow xcol) | |
703 | (ses-create-cell-symbol xrow xcol)))) | |
7ed9159a | 704 | (if (boundp sym) |
63f3351c | 705 | (push `(apply ses-set-with-undo ,sym ,(symbol-value sym)) |
7ed9159a JY |
706 | buffer-undo-list)) |
707 | (kill-local-variable sym)))) | |
63f3351c | 708 | (push `(apply ses-create-cell-variable-range ,minrow ,maxrow ,mincol ,maxcol) |
7ed9159a JY |
709 | buffer-undo-list)) |
710 | ||
711 | (defun ses-reset-header-string () | |
4bdf2ad2 | 712 | "Flag the header string for update. Upon undo, the header string will be |
7ed9159a | 713 | updated again." |
63f3351c | 714 | (push '(apply ses-reset-header-string) buffer-undo-list) |
94be2532 | 715 | (setq ses--header-hscroll -1)) |
7ed9159a JY |
716 | |
717 | ;;Split this code off into a function to avoid coverage-testing difficulties | |
718 | (defun ses-time-check (format arg) | |
719 | "If `ses-start-time' is more than a second ago, call `message' with FORMAT | |
720 | and (eval ARG) and reset `ses-start-time' to the current time." | |
721 | (when (> (- (float-time) ses-start-time) 1.0) | |
722 | (message format (eval arg)) | |
723 | (setq ses-start-time (float-time))) | |
724 | nil) | |
725 | ||
726 | ||
58cf70d3 SM |
727 | ;;---------------------------------------------------------------------------- |
728 | ;; The cells | |
729 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
730 | |
731 | (defun ses-set-cell (row col field val) | |
732 | "Install VAL as the contents for field FIELD (named by a quoted symbol) of | |
733 | cell (ROW,COL). This is undoable. The cell's data will be updated through | |
734 | `post-command-hook'." | |
735 | (let ((cell (ses-get-cell row col)) | |
736 | (elt (plist-get '(value t symbol 0 formula 1 printer 2 references 3) | |
737 | field)) | |
738 | change) | |
739 | (or elt (signal 'args-out-of-range nil)) | |
740 | (setq change (if (eq elt t) | |
741 | (ses-set-with-undo (ses-cell-symbol cell) val) | |
742 | (ses-aset-with-undo cell elt val))) | |
743 | (if change | |
94be2532 | 744 | (add-to-list 'ses--deferred-write (cons row col)))) |
2bb63e81 | 745 | nil) ; Make coverage-tester happy. |
7ed9159a JY |
746 | |
747 | (defun ses-cell-set-formula (row col formula) | |
4bdf2ad2 | 748 | "Store a new formula for (ROW . COL) and enqueue the cell for |
7ed9159a JY |
749 | recalculation via `post-command-hook'. Updates the reference lists for the |
750 | cells that this cell refers to. Does not update cell value or reprint the | |
751 | cell. To avoid inconsistencies, this function is not interruptible, which | |
752 | means Emacs will crash if FORMULA contains a circular list." | |
753 | (let* ((cell (ses-get-cell row col)) | |
754 | (old (ses-cell-formula cell))) | |
755 | (let ((sym (ses-cell-symbol cell)) | |
756 | (oldref (ses-formula-references old)) | |
757 | (newref (ses-formula-references formula)) | |
758 | (inhibit-quit t) | |
759 | x xrow xcol) | |
94be2532 | 760 | (add-to-list 'ses--deferred-recalc sym) |
7ed9159a JY |
761 | ;;Delete old references from this cell. Skip the ones that are also |
762 | ;;in the new list. | |
763 | (dolist (ref oldref) | |
764 | (unless (memq ref newref) | |
765 | (setq x (ses-sym-rowcol ref) | |
766 | xrow (car x) | |
767 | xcol (cdr x)) | |
768 | (ses-set-cell xrow xcol 'references | |
769 | (delq sym (ses-cell-references xrow xcol))))) | |
770 | ;;Add new ones. Skip ones left over from old list | |
771 | (dolist (ref newref) | |
772 | (setq x (ses-sym-rowcol ref) | |
773 | xrow (car x) | |
774 | xcol (cdr x) | |
775 | x (ses-cell-references xrow xcol)) | |
776 | (or (memq sym x) | |
777 | (ses-set-cell xrow xcol 'references (cons sym x)))) | |
778 | (ses-formula-record formula) | |
779 | (ses-set-cell row col 'formula formula)))) | |
780 | ||
5e5d49b6 VB |
781 | |
782 | (defun ses-repair-cell-reference-all () | |
783 | "Repair cell reference and warn if there was some reference corruption." | |
784 | (interactive "*") | |
785 | (let (errors) | |
786 | ;; Step 1, reset :ses-repair-reference cell property in the whole sheet. | |
787 | (dotimes (row ses--numrows) | |
788 | (dotimes (col ses--numcols) | |
789 | (let ((references (ses-cell-property-pop :ses-repair-reference | |
790 | row col))) | |
791 | (when references | |
792 | (push (list | |
793 | (ses-cell-symbol row col) | |
794 | :corrupt-property | |
795 | references) errors))))) | |
796 | ||
797 | ;; Step 2, build new. | |
798 | (dotimes (row ses--numrows) | |
799 | (dotimes (col ses--numcols) | |
800 | (let* ((cell (ses-get-cell row col)) | |
801 | (sym (ses-cell-symbol cell)) | |
802 | (formula (ses-cell-formula cell)) | |
803 | (new-ref (ses-formula-references formula))) | |
804 | (dolist (ref new-ref) | |
805 | (let* ((rowcol (ses-sym-rowcol ref)) | |
806 | (h (ses-cell-property-get-handle :ses-repair-reference | |
807 | (car rowcol) (cdr rowcol)))) | |
808 | (unless (memq ref (ses-cell-property-handle-car h)) | |
809 | (ses-cell-property-handle-setcar | |
810 | h | |
811 | (cons sym | |
812 | (ses-cell-property-handle-car h))))))))) | |
813 | ||
814 | ;; Step 3, overwrite with check. | |
815 | (dotimes (row ses--numrows) | |
816 | (dotimes (col ses--numcols) | |
817 | (let* ((cell (ses-get-cell row col)) | |
818 | (irrelevant (ses-cell-references cell)) | |
819 | (new-ref (ses-cell-property-pop :ses-repair-reference cell)) | |
820 | missing) | |
821 | (dolist (ref new-ref) | |
822 | (if (memq ref irrelevant) | |
823 | (setq irrelevant (delq ref irrelevant)) | |
824 | (push ref missing))) | |
825 | (ses-set-cell row col 'references new-ref) | |
826 | (when (or missing irrelevant) | |
827 | (push `( ,(ses-cell-symbol cell) | |
828 | ,@(and missing (list :missing missing)) | |
829 | ,@(and irrelevant (list :irrelevant irrelevant))) | |
830 | errors))))) | |
831 | (if errors | |
832 | (warn "---------------------------------------------------------------- | |
4bdf2ad2 | 833 | Some references were corrupted. |
5e5d49b6 | 834 | |
4bdf2ad2 | 835 | The following is a list where each element ELT is such |
5e5d49b6 VB |
836 | that (car ELT) is the reference of cell CELL with corruption, |
837 | and (cdr ELT) is a property list where | |
838 | ||
839 | * property `:corrupt-property' means that | |
840 | property `:ses-repair-reference' of cell CELL was initially non | |
841 | nil, | |
842 | ||
843 | * property `:missing' is a list of missing references | |
844 | ||
845 | * property `:irrelevant' is a list of non needed references | |
846 | ||
847 | %S" errors) | |
848 | (message "No reference corruption found")))) | |
849 | ||
7ed9159a JY |
850 | (defun ses-calculate-cell (row col force) |
851 | "Calculate and print the value for cell (ROW,COL) using the cell's formula | |
852 | function and print functions, if any. Result is nil for normal operation, or | |
853 | the error signal if the formula or print function failed. The old value is | |
854 | left unchanged if it was *skip* and the new value is nil. | |
855 | Any cells that depend on this cell are queued for update after the end of | |
856 | processing for the current keystroke, unless the new value is the same as | |
857 | the old and FORCE is nil." | |
858 | (let ((cell (ses-get-cell row col)) | |
90ca8b49 | 859 | cycle-error formula-error printer-error) |
58cf70d3 | 860 | (let ((oldval (ses-cell-value cell)) |
7ed9159a | 861 | (formula (ses-cell-formula cell)) |
90ca8b49 VB |
862 | newval |
863 | this-cell-Dijkstra-attempt-h | |
864 | this-cell-Dijkstra-attempt | |
865 | this-cell-Dijkstra-attempt+1 | |
866 | ref-cell-Dijkstra-attempt-h | |
867 | ref-cell-Dijkstra-attempt | |
868 | ref-rowcol) | |
66ba97ee GM |
869 | (when (eq (car-safe formula) 'ses-safe-formula) |
870 | (setq formula (ses-safe-formula (cadr formula))) | |
871 | (ses-set-cell row col 'formula formula)) | |
7ed9159a JY |
872 | (condition-case sig |
873 | (setq newval (eval formula)) | |
874 | (error | |
90ca8b49 VB |
875 | ;; Variable `sig' can't be nil. |
876 | (nconc sig (list (ses-cell-symbol cell))) | |
7ed9159a JY |
877 | (setq formula-error sig |
878 | newval '*error*))) | |
879 | (if (and (not newval) (eq oldval '*skip*)) | |
2bb63e81 | 880 | ;; Don't lose the *skip* --- previous field spans this one. |
7ed9159a | 881 | (setq newval '*skip*)) |
90ca8b49 VB |
882 | (catch 'cycle |
883 | (when (or force (not (eq newval oldval))) | |
884 | (add-to-list 'ses--deferred-write (cons row col)) ; In case force=t. | |
885 | (setq this-cell-Dijkstra-attempt-h | |
886 | (ses-cell-property-get-handle :ses-Dijkstra-attempt cell); | |
887 | this-cell-Dijkstra-attempt | |
888 | (ses-cell-property-handle-car this-cell-Dijkstra-attempt-h)) | |
889 | (if (null this-cell-Dijkstra-attempt) | |
890 | (ses-cell-property-handle-setcar | |
891 | this-cell-Dijkstra-attempt-h | |
892 | (setq this-cell-Dijkstra-attempt | |
893 | (cons ses--Dijkstra-attempt-nb 0))) | |
894 | (unless (= ses--Dijkstra-attempt-nb | |
895 | (car this-cell-Dijkstra-attempt)) | |
896 | (setcar this-cell-Dijkstra-attempt ses--Dijkstra-attempt-nb) | |
897 | (setcdr this-cell-Dijkstra-attempt 0))) | |
898 | (setq this-cell-Dijkstra-attempt+1 | |
899 | (1+ (cdr this-cell-Dijkstra-attempt))) | |
900 | (ses-set-cell row col 'value newval) | |
901 | (dolist (ref (ses-cell-references cell)) | |
902 | (add-to-list 'ses--deferred-recalc ref) | |
903 | (setq ref-rowcol (ses-sym-rowcol ref) | |
904 | ref-cell-Dijkstra-attempt-h | |
905 | (ses-cell-property-get-handle | |
906 | :ses-Dijkstra-attempt | |
907 | (car ref-rowcol) (cdr ref-rowcol)) | |
908 | ref-cell-Dijkstra-attempt | |
909 | (ses-cell-property-handle-car ref-cell-Dijkstra-attempt-h)) | |
910 | ||
911 | (if (null ref-cell-Dijkstra-attempt) | |
912 | (ses-cell-property-handle-setcar | |
913 | ref-cell-Dijkstra-attempt-h | |
914 | (setq ref-cell-Dijkstra-attempt | |
915 | (cons ses--Dijkstra-attempt-nb | |
916 | this-cell-Dijkstra-attempt+1))) | |
917 | (if (= (car ref-cell-Dijkstra-attempt) ses--Dijkstra-attempt-nb) | |
918 | (setcdr ref-cell-Dijkstra-attempt | |
919 | (max (cdr ref-cell-Dijkstra-attempt) | |
920 | this-cell-Dijkstra-attempt+1)) | |
921 | (setcar ref-cell-Dijkstra-attempt ses--Dijkstra-attempt-nb) | |
922 | (setcdr ref-cell-Dijkstra-attempt | |
923 | this-cell-Dijkstra-attempt+1))) | |
924 | ||
925 | (when (> this-cell-Dijkstra-attempt+1 ses--Dijkstra-weight-bound) | |
926 | ;; Update print of this cell. | |
927 | (throw 'cycle (setq formula-error | |
928 | `(error ,(format "Found cycle on cells %S" | |
929 | (ses-cell-symbol cell))) | |
930 | cycle-error formula-error))))))) | |
7ed9159a | 931 | (setq printer-error (ses-print-cell row col)) |
90ca8b49 VB |
932 | (or |
933 | (and cycle-error | |
934 | (error (error-message-string cycle-error))) | |
935 | formula-error printer-error))) | |
7ed9159a JY |
936 | |
937 | (defun ses-clear-cell (row col) | |
938 | "Delete formula and printer for cell (ROW,COL)." | |
939 | (ses-set-cell row col 'printer nil) | |
940 | (ses-cell-set-formula row col nil)) | |
941 | ||
90ca8b49 | 942 | (defcustom ses-self-reference-early-detection nil |
4bdf2ad2 | 943 | "True if cycle detection is early for cells that refer to themselves." |
2bed3f04 | 944 | :version "24.1" |
90ca8b49 VB |
945 | :type 'boolean |
946 | :group 'ses) | |
947 | ||
7ed9159a JY |
948 | (defun ses-update-cells (list &optional force) |
949 | "Recalculate cells in LIST, checking for dependency loops. Prints | |
950 | progress messages every second. Dependent cells are not recalculated | |
ddd1c214 | 951 | if the cell's value is unchanged and FORCE is nil." |
94be2532 JY |
952 | (let ((ses--deferred-recalc list) |
953 | (nextlist list) | |
954 | (pos (point)) | |
90ca8b49 | 955 | curlist prevlist this-sym this-rowcol formula) |
7ed9159a | 956 | (with-temp-message " " |
90ca8b49 VB |
957 | (while ses--deferred-recalc |
958 | ;; In each loop, recalculate cells that refer only to other cells that | |
959 | ;; have already been recalculated or aren't in the recalculation region. | |
960 | ;; Repeat until all cells have been processed or until the set of cells | |
961 | ;; being worked on stops changing. | |
7ed9159a JY |
962 | (if prevlist |
963 | (message "Recalculating... (%d cells left)" | |
94be2532 JY |
964 | (length ses--deferred-recalc))) |
965 | (setq curlist ses--deferred-recalc | |
966 | ses--deferred-recalc nil | |
967 | prevlist nextlist) | |
7ed9159a | 968 | (while curlist |
90ca8b49 VB |
969 | ;; this-sym has to be popped from curlist *BEFORE* the check, and not |
970 | ;; after because of the case of cells referring to themselves. | |
971 | (setq this-sym (pop curlist) | |
972 | this-rowcol (ses-sym-rowcol this-sym) | |
973 | formula (ses-cell-formula (car this-rowcol) | |
974 | (cdr this-rowcol))) | |
7ed9159a JY |
975 | (or (catch 'ref |
976 | (dolist (ref (ses-formula-references formula)) | |
90ca8b49 VB |
977 | (if (and ses-self-reference-early-detection (eq ref this-sym)) |
978 | (error "Cycle found: cell %S is self-referring" this-sym) | |
979 | (when (or (memq ref curlist) | |
980 | (memq ref ses--deferred-recalc)) | |
981 | ;; This cell refers to another that isn't done yet | |
982 | (add-to-list 'ses--deferred-recalc this-sym) | |
983 | (throw 'ref t))))) | |
984 | ;; ses-update-cells is called from post-command-hook, so | |
985 | ;; inhibit-quit is implicitly bound to t. | |
7ed9159a | 986 | (when quit-flag |
2bb63e81 | 987 | ;; Abort the recalculation. User will probably undo now. |
7ed9159a | 988 | (error "Quit")) |
90ca8b49 | 989 | (ses-calculate-cell (car this-rowcol) (cdr this-rowcol) force))) |
94be2532 | 990 | (dolist (ref ses--deferred-recalc) |
90ca8b49 | 991 | (add-to-list 'nextlist ref))) |
94be2532 | 992 | (when ses--deferred-recalc |
2bb63e81 | 993 | ;; Just couldn't finish these. |
94be2532 | 994 | (dolist (x ses--deferred-recalc) |
90ca8b49 VB |
995 | (let ((this-rowcol (ses-sym-rowcol x))) |
996 | (ses-set-cell (car this-rowcol) (cdr this-rowcol) 'value '*error*) | |
997 | (1value (ses-print-cell (car this-rowcol) (cdr this-rowcol))))) | |
94be2532 | 998 | (error "Circular references: %s" ses--deferred-recalc)) |
7ed9159a | 999 | (message " ")) |
2bb63e81 | 1000 | ;; Can't use save-excursion here: if the cell under point is updated, |
4bdf2ad2 | 1001 | ;; save-excursion's marker will move past the cell. |
7ed9159a JY |
1002 | (goto-char pos))) |
1003 | ||
1004 | ||
58cf70d3 SM |
1005 | ;;---------------------------------------------------------------------------- |
1006 | ;; The print area | |
1007 | ;;---------------------------------------------------------------------------- | |
7ed9159a | 1008 | |
94be2532 | 1009 | (defun ses-in-print-area () |
4bdf2ad2 | 1010 | "Return t if point is in print area of spreadsheet." |
ddd1c214 | 1011 | (<= (point) ses--data-marker)) |
94be2532 | 1012 | |
2bb63e81 VB |
1013 | ;; We turn off point-motion-hooks and explicitly position the cursor, in case |
1014 | ;; the intangible properties have gotten screwed up (e.g., when ses-goto-print | |
1015 | ;; is called during a recursive ses-print-cell). | |
7ed9159a JY |
1016 | (defun ses-goto-print (row col) |
1017 | "Move point to print area for cell (ROW,COL)." | |
c0c30dd1 JY |
1018 | (let ((inhibit-point-motion-hooks t) |
1019 | (n 0)) | |
94be2532 | 1020 | (goto-char (point-min)) |
7ed9159a | 1021 | (forward-line row) |
2bb63e81 | 1022 | ;; Calculate column position. |
7ed9159a | 1023 | (dotimes (c col) |
c0c30dd1 | 1024 | (setq n (+ n (ses-col-width c) 1))) |
2bb63e81 | 1025 | ;; Move to the position. |
c0c30dd1 JY |
1026 | (and (> n (move-to-column n)) |
1027 | (eolp) | |
2bb63e81 | 1028 | ;; Move point to the bol of next line (for TAB at the last cell). |
c0c30dd1 | 1029 | (forward-char)))) |
7ed9159a JY |
1030 | |
1031 | (defun ses-set-curcell () | |
4bdf2ad2 | 1032 | "Set `ses--curcell' to the current cell symbol, or a cons (BEG,END) for a |
7ed9159a JY |
1033 | region, or nil if cursor is not at a cell." |
1034 | (if (or (not mark-active) | |
1035 | deactivate-mark | |
1036 | (= (region-beginning) (region-end))) | |
2bb63e81 | 1037 | ;; Single cell. |
94be2532 | 1038 | (setq ses--curcell (get-text-property (point) 'intangible)) |
2bb63e81 | 1039 | ;; Range. |
7ed9159a JY |
1040 | (let ((bcell (get-text-property (region-beginning) 'intangible)) |
1041 | (ecell (get-text-property (1- (region-end)) 'intangible))) | |
4eb3897c | 1042 | (when (= (region-end) ses--data-marker) |
2bb63e81 | 1043 | ;; Correct for overflow. |
4eb3897c | 1044 | (setq ecell (get-text-property (- (region-end) 2) 'intangible))) |
94be2532 JY |
1045 | (setq ses--curcell (if (and bcell ecell) |
1046 | (cons bcell ecell) | |
1047 | nil)))) | |
7ed9159a JY |
1048 | nil) |
1049 | ||
1050 | (defun ses-check-curcell (&rest args) | |
4bdf2ad2 VB |
1051 | "Signal an error if `ses--curcell' is inappropriate. |
1052 | The end marker is appropriate if some argument is 'end. | |
1053 | A range is appropriate if some argument is 'range. | |
1054 | A single cell is appropriate unless some argument is 'needrange." | |
94be2532 | 1055 | (if (eq ses--curcell t) |
2bb63e81 | 1056 | ;; curcell recalculation was postponed, but user typed ahead. |
7ed9159a JY |
1057 | (ses-set-curcell)) |
1058 | (cond | |
94be2532 | 1059 | ((not ses--curcell) |
7ed9159a JY |
1060 | (or (memq 'end args) |
1061 | (error "Not at cell"))) | |
94be2532 | 1062 | ((consp ses--curcell) |
7ed9159a JY |
1063 | (or (memq 'range args) |
1064 | (memq 'needrange args) | |
1065 | (error "Can't use a range"))) | |
1066 | ((memq 'needrange args) | |
1067 | (error "Need a range")))) | |
1068 | ||
1069 | (defun ses-print-cell (row col) | |
58cf70d3 SM |
1070 | "Format and print the value of cell (ROW,COL) to the print area. |
1071 | Use the cell's printer function. If the cell's new print form is too wide, | |
1072 | it will spill over into the following cell, but will not run off the end of the | |
1073 | row or overwrite the next non-nil field. Result is nil for normal operation, | |
1074 | or the error signal if the printer function failed and the cell was formatted | |
7ed9159a JY |
1075 | with \"%s\". If the cell's value is *skip*, nothing is printed because the |
1076 | preceding cell has spilled over." | |
1077 | (catch 'ses-print-cell | |
1078 | (let* ((cell (ses-get-cell row col)) | |
1079 | (value (ses-cell-value cell)) | |
1080 | (printer (ses-cell-printer cell)) | |
1081 | (maxcol (1+ col)) | |
1082 | text sig startpos x) | |
2bb63e81 | 1083 | ;; Create the string to print. |
7ed9159a JY |
1084 | (cond |
1085 | ((eq value '*skip*) | |
2bb63e81 | 1086 | ;; Don't print anything. |
7ed9159a JY |
1087 | (throw 'ses-print-cell nil)) |
1088 | ((eq value '*error*) | |
1089 | (setq text (make-string (ses-col-width col) ?#))) | |
1090 | (t | |
2bb63e81 | 1091 | ;; Deferred safety-check on printer. |
7ed9159a JY |
1092 | (if (eq (car-safe printer) 'ses-safe-printer) |
1093 | (ses-set-cell row col 'printer | |
1094 | (setq printer (ses-safe-printer (cadr printer))))) | |
2bb63e81 | 1095 | ;; Print the value. |
7ed9159a JY |
1096 | (setq text (ses-call-printer (or printer |
1097 | (ses-col-printer col) | |
94be2532 | 1098 | ses--default-printer) |
7ed9159a JY |
1099 | value)) |
1100 | (if (consp ses-call-printer-return) | |
2bb63e81 | 1101 | ;; Printer returned an error. |
7ed9159a | 1102 | (setq sig ses-call-printer-return)))) |
2bb63e81 | 1103 | ;; Adjust print width to match column width. |
7ed9159a | 1104 | (let ((width (ses-col-width col)) |
c0c30dd1 | 1105 | (len (string-width text))) |
7ed9159a JY |
1106 | (cond |
1107 | ((< len width) | |
2bb63e81 | 1108 | ;; Fill field to length with spaces. |
51616cd5 | 1109 | (setq len (make-string (- width len) ?\s) |
7ed9159a JY |
1110 | text (if (eq ses-call-printer-return t) |
1111 | (concat text len) | |
1112 | (concat len text)))) | |
1113 | ((> len width) | |
2bb63e81 | 1114 | ;; Spill over into following cells, if possible. |
7ed9159a JY |
1115 | (let ((maxwidth width)) |
1116 | (while (and (> len maxwidth) | |
94be2532 | 1117 | (< maxcol ses--numcols) |
7ed9159a JY |
1118 | (or (not (setq x (ses-cell-value row maxcol))) |
1119 | (eq x '*skip*))) | |
1120 | (unless x | |
2bb63e81 | 1121 | ;; Set this cell to '*skip* so it won't overwrite our spillover. |
7ed9159a JY |
1122 | (ses-set-cell row maxcol 'value '*skip*)) |
1123 | (setq maxwidth (+ maxwidth (ses-col-width maxcol) 1) | |
1124 | maxcol (1+ maxcol))) | |
1125 | (if (<= len maxwidth) | |
2bb63e81 | 1126 | ;; Fill to complete width of all the fields spanned. |
51616cd5 | 1127 | (setq text (concat text (make-string (- maxwidth len) ?\s))) |
2bb63e81 VB |
1128 | ;; Not enough room to end of line or next non-nil field. Truncate |
1129 | ;; if string or decimal; otherwise fill with error indicator. | |
7ed9159a | 1130 | (setq sig `(error "Too wide" ,text)) |
9e2d29b6 JY |
1131 | (cond |
1132 | ((stringp value) | |
c0c30dd1 | 1133 | (setq text (truncate-string-to-width text maxwidth 0 ?\s))) |
9e2d29b6 JY |
1134 | ((and (numberp value) |
1135 | (string-match "\\.[0-9]+" text) | |
1136 | (>= 0 (setq width | |
1137 | (- len maxwidth | |
1138 | (- (match-end 0) (match-beginning 0)))))) | |
1139 | ;; Turn 6.6666666666e+49 into 6.66e+49. Rounding is too hard! | |
1140 | (setq text (concat (substring text | |
1141 | 0 | |
1142 | (- (match-beginning 0) width)) | |
1143 | (substring text (match-end 0))))) | |
1144 | (t | |
1145 | (setq text (make-string maxwidth ?#))))))))) | |
2bb63e81 VB |
1146 | ;; Substitute question marks for tabs and newlines. Newlines are used as |
1147 | ;; row-separators; tabs could confuse the reimport logic. | |
7ed9159a JY |
1148 | (setq text (replace-regexp-in-string "[\t\n]" "?" text)) |
1149 | (ses-goto-print row col) | |
1150 | (setq startpos (point)) | |
2bb63e81 | 1151 | ;; Install the printed result. This is not interruptible. |
7ed9159a JY |
1152 | (let ((inhibit-read-only t) |
1153 | (inhibit-quit t)) | |
c0c30dd1 JY |
1154 | (let ((inhibit-point-motion-hooks t)) |
1155 | (delete-region (point) (progn | |
1156 | (move-to-column (+ (current-column) | |
1157 | (string-width text))) | |
1158 | (1+ (point))))) | |
2bb63e81 VB |
1159 | ;; We use concat instead of inserting separate strings in order to |
1160 | ;; reduce the number of cells in the undo list. | |
94be2532 | 1161 | (setq x (concat text (if (< maxcol ses--numcols) " " "\n"))) |
2bb63e81 VB |
1162 | ;; We use set-text-properties to prevent a wacky print function from |
1163 | ;; inserting rogue properties, and to ensure that the keymap property is | |
4bdf2ad2 | 1164 | ;; inherited (is it a bug that only unpropertized strings actually |
2bb63e81 | 1165 | ;; inherit from surrounding text?) |
7ed9159a JY |
1166 | (set-text-properties 0 (length x) nil x) |
1167 | (insert-and-inherit x) | |
1168 | (put-text-property startpos (point) 'intangible | |
1169 | (ses-cell-symbol cell)) | |
1170 | (when (and (zerop row) (zerop col)) | |
2bb63e81 | 1171 | ;; Reconstruct special beginning-of-buffer attributes. |
94be2532 JY |
1172 | (put-text-property (point-min) (point) 'keymap 'ses-mode-print-map) |
1173 | (put-text-property (point-min) (point) 'read-only 'ses) | |
1174 | (put-text-property (point-min) (1+ (point-min)) 'front-sticky t))) | |
1175 | (if (= row (1- ses--header-row)) | |
2bb63e81 | 1176 | ;; This line is part of the header --- force recalc. |
7ed9159a | 1177 | (ses-reset-header-string)) |
2bb63e81 VB |
1178 | ;; If this cell (or a preceding one on the line) previously spilled over |
1179 | ;; and has gotten shorter, redraw following cells on line recursively. | |
94be2532 JY |
1180 | (when (and (< maxcol ses--numcols) |
1181 | (eq (ses-cell-value row maxcol) '*skip*)) | |
7ed9159a JY |
1182 | (ses-set-cell row maxcol 'value nil) |
1183 | (ses-print-cell row maxcol)) | |
2bb63e81 | 1184 | ;; Return to start of cell. |
7ed9159a JY |
1185 | (goto-char startpos) |
1186 | sig))) | |
1187 | ||
1188 | (defun ses-call-printer (printer &optional value) | |
4bdf2ad2 | 1189 | "Invoke PRINTER (a string or parenthesized string or function-symbol or |
5e29464c JB |
1190 | lambda of one argument) on VALUE. Result is the printed cell as a string. |
1191 | The variable `ses-call-printer-return' is set to t if the printer used | |
1192 | parenthesis to request left-justification, or the error-signal if the | |
d0f6a32f | 1193 | printer signaled one (and \"%s\" is used as the default printer), else nil." |
7ed9159a | 1194 | (setq ses-call-printer-return nil) |
7ed9159a JY |
1195 | (condition-case signal |
1196 | (cond | |
1197 | ((stringp printer) | |
b6458526 VB |
1198 | (if value |
1199 | (format printer value) | |
1200 | "")) | |
7ed9159a JY |
1201 | ((stringp (car-safe printer)) |
1202 | (setq ses-call-printer-return t) | |
b6458526 VB |
1203 | (if value |
1204 | (format (car printer) value) | |
1205 | "")) | |
7ed9159a | 1206 | (t |
b6458526 | 1207 | (setq value (funcall printer (or value ""))) |
7ed9159a JY |
1208 | (if (stringp value) |
1209 | value | |
1210 | (or (stringp (car-safe value)) | |
1211 | (error "Printer should return \"string\" or (\"string\")")) | |
1212 | (setq ses-call-printer-return t) | |
1213 | (car value)))) | |
1214 | (error | |
1215 | (setq ses-call-printer-return signal) | |
1216 | (prin1-to-string value t)))) | |
1217 | ||
1218 | (defun ses-adjust-print-width (col change) | |
1219 | "Insert CHANGE spaces in front of column COL, or at end of line if | |
1220 | COL=NUMCOLS. Deletes characters if CHANGE < 0. Caller should bind | |
4bdf2ad2 | 1221 | `inhibit-quit' to t." |
7ed9159a | 1222 | (let ((inhibit-read-only t) |
51616cd5 | 1223 | (blank (if (> change 0) (make-string change ?\s))) |
94be2532 JY |
1224 | (at-end (= col ses--numcols))) |
1225 | (ses-set-with-undo 'ses--linewidth (+ ses--linewidth change)) | |
2bb63e81 | 1226 | ;; ses-set-with-undo always returns t for strings. |
94be2532 | 1227 | (1value (ses-set-with-undo 'ses--blank-line |
51616cd5 | 1228 | (concat (make-string ses--linewidth ?\s) "\n"))) |
94be2532 | 1229 | (dotimes (row ses--numrows) |
7ed9159a JY |
1230 | (ses-goto-print row col) |
1231 | (when at-end | |
2bb63e81 | 1232 | ;; Insert new columns before newline. |
7ed9159a JY |
1233 | (let ((inhibit-point-motion-hooks t)) |
1234 | (backward-char 1))) | |
1235 | (if blank | |
1236 | (insert blank) | |
1237 | (delete-char (- change)))))) | |
1238 | ||
1239 | (defun ses-print-cell-new-width (row col) | |
4bdf2ad2 VB |
1240 | "Same as `ses-print-cell', except if the cell's value is *skip*, |
1241 | the preceding nonskipped cell is reprinted. This function is used | |
1242 | when the width of cell (ROW,COL) has changed." | |
7ed9159a JY |
1243 | (if (not (eq (ses-cell-value row col) '*skip*)) |
1244 | (ses-print-cell row col) | |
1245 | ;;Cell was skipped over - reprint previous | |
1246 | (ses-goto-print row col) | |
1247 | (backward-char 1) | |
1248 | (let ((rowcol (ses-sym-rowcol (get-text-property (point) 'intangible)))) | |
1249 | (ses-print-cell (car rowcol) (cdr rowcol))))) | |
1250 | ||
1251 | ||
58cf70d3 SM |
1252 | ;;---------------------------------------------------------------------------- |
1253 | ;; The data area | |
1254 | ;;---------------------------------------------------------------------------- | |
1255 | ||
1256 | (defun ses-narrowed-p () (/= (- (point-max) (point-min)) (buffer-size))) | |
7ed9159a | 1257 | |
bd93e3e1 JY |
1258 | (defun ses-widen () |
1259 | "Turn off narrowing, to be reenabled at end of command loop." | |
1260 | (if (ses-narrowed-p) | |
1261 | (setq ses--deferred-narrow t)) | |
1262 | (widen)) | |
1263 | ||
7ed9159a | 1264 | (defun ses-goto-data (def &optional col) |
94be2532 JY |
1265 | "Move point to data area for (DEF,COL). If DEF is a row |
1266 | number, COL is the column number for a data cell -- otherwise DEF | |
1267 | is one of the symbols ses--col-widths, ses--col-printers, | |
1268 | ses--default-printer, ses--numrows, or ses--numcols." | |
bd93e3e1 | 1269 | (ses-widen) |
2bb63e81 | 1270 | (let ((inhibit-point-motion-hooks t)) ; In case intangible attrs are wrong. |
7ed9159a | 1271 | (if col |
2bb63e81 | 1272 | ;; It's a cell. |
ddd1c214 JY |
1273 | (progn |
1274 | (goto-char ses--data-marker) | |
1275 | (forward-line (+ 1 (* def (1+ ses--numcols)) col))) | |
2bb63e81 | 1276 | ;; Convert def-symbol to offset. |
ddd1c214 JY |
1277 | (setq def (plist-get ses-paramlines-plist def)) |
1278 | (or def (signal 'args-out-of-range nil)) | |
1279 | (goto-char ses--params-marker) | |
1280 | (forward-line def)))) | |
7ed9159a JY |
1281 | |
1282 | (defun ses-set-parameter (def value &optional elem) | |
58cf70d3 SM |
1283 | "Set parameter DEF to VALUE (with undo) and write the value to the data area. |
1284 | See `ses-goto-data' for meaning of DEF. Newlines in the data are escaped. | |
1285 | If ELEM is specified, it is the array subscript within DEF to be set to VALUE." | |
7ed9159a | 1286 | (save-excursion |
2bb63e81 VB |
1287 | ;; We call ses-goto-data early, using the old values of numrows and numcols |
1288 | ;; in case one of them is being changed. | |
7ed9159a | 1289 | (ses-goto-data def) |
7ed9159a | 1290 | (let ((inhibit-read-only t) |
c21c3d89 | 1291 | (fmt (plist-get '(ses--col-widths "(ses-column-widths %S)" |
94be2532 JY |
1292 | ses--col-printers "(ses-column-printers %S)" |
1293 | ses--default-printer "(ses-default-printer %S)" | |
1294 | ses--header-row "(ses-header-row %S)" | |
1295 | ses--file-format " %S ;SES file-format" | |
1296 | ses--numrows " %S ;numrows" | |
1297 | ses--numcols " %S ;numcols") | |
bd93e3e1 JY |
1298 | def)) |
1299 | oldval) | |
1300 | (if elem | |
1301 | (progn | |
1302 | (setq oldval (aref (symbol-value def) elem)) | |
1303 | (aset (symbol-value def) elem value)) | |
1304 | (setq oldval (symbol-value def)) | |
1305 | (set def value)) | |
2bb63e81 | 1306 | ;; Special undo since it's outside the narrowed buffer. |
bd93e3e1 JY |
1307 | (let (buffer-undo-list) |
1308 | (delete-region (point) (line-end-position)) | |
1309 | (insert (format fmt (symbol-value def)))) | |
1310 | (push `(apply ses-set-parameter ,def ,oldval ,elem) buffer-undo-list)))) | |
1311 | ||
7ed9159a JY |
1312 | |
1313 | (defun ses-write-cells () | |
58cf70d3 SM |
1314 | "Write cells in `ses--deferred-write' from local variables to data area. |
1315 | Newlines in the data are escaped." | |
7ed9159a JY |
1316 | (let* ((inhibit-read-only t) |
1317 | (print-escape-newlines t) | |
1318 | rowcol row col cell sym formula printer text) | |
1319 | (setq ses-start-time (float-time)) | |
1320 | (with-temp-message " " | |
1321 | (save-excursion | |
94be2532 | 1322 | (while ses--deferred-write |
7ed9159a | 1323 | (ses-time-check "Writing... (%d cells left)" |
94be2532 JY |
1324 | '(length ses--deferred-write)) |
1325 | (setq rowcol (pop ses--deferred-write) | |
7ed9159a JY |
1326 | row (car rowcol) |
1327 | col (cdr rowcol) | |
1328 | cell (ses-get-cell row col) | |
1329 | sym (ses-cell-symbol cell) | |
1330 | formula (ses-cell-formula cell) | |
1331 | printer (ses-cell-printer cell)) | |
1332 | (if (eq (car-safe formula) 'ses-safe-formula) | |
1333 | (setq formula (cadr formula))) | |
1334 | (if (eq (car-safe printer) 'ses-safe-printer) | |
1335 | (setq printer (cadr printer))) | |
4bdf2ad2 | 1336 | ;; This is noticeably faster than (format "%S %S %S %S %S") |
7ed9159a JY |
1337 | (setq text (concat "(ses-cell " |
1338 | (symbol-name sym) | |
1339 | " " | |
1340 | (prin1-to-string (symbol-value sym)) | |
1341 | " " | |
1342 | (prin1-to-string formula) | |
1343 | " " | |
1344 | (prin1-to-string printer) | |
1345 | " " | |
1346 | (if (atom (ses-cell-references cell)) | |
1347 | "nil" | |
1348 | (concat "(" | |
1349 | (mapconcat 'symbol-name | |
1350 | (ses-cell-references cell) | |
1351 | " ") | |
1352 | ")")) | |
1353 | ")")) | |
1354 | (ses-goto-data row col) | |
1355 | (delete-region (point) (line-end-position)) | |
1356 | (insert text))) | |
1357 | (message " ")))) | |
1358 | ||
1359 | ||
58cf70d3 SM |
1360 | ;;---------------------------------------------------------------------------- |
1361 | ;; Formula relocation | |
1362 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
1363 | |
1364 | (defun ses-formula-references (formula &optional result-so-far) | |
4bdf2ad2 | 1365 | "Produce a list of symbols for cells that this FORMULA's value |
90ca8b49 VB |
1366 | refers to. For recursive calls, RESULT-SO-FAR is the list being |
1367 | constructed, or t to get a wrong-type-argument error when the | |
1368 | first reference is found." | |
1369 | (if (ses-sym-rowcol formula) | |
1370 | ;;Entire formula is one symbol | |
1371 | (add-to-list 'result-so-far formula) | |
1372 | (if (consp formula) | |
1373 | (cond | |
1374 | ((eq (car formula) 'ses-range) | |
1375 | (dolist (cur | |
1376 | (cdr (funcall 'macroexpand | |
1377 | (list 'ses-range (nth 1 formula) | |
1378 | (nth 2 formula))))) | |
1379 | (add-to-list 'result-so-far cur))) | |
1380 | ((null (eq (car formula) 'quote)) | |
1381 | ;;Recursive call for subformulas | |
1382 | (dolist (cur formula) | |
1383 | (setq result-so-far (ses-formula-references cur result-so-far)))) | |
1384 | (t | |
1385 | ;;Ignore other stuff | |
1386 | )) | |
1387 | ;; other type of atom are ignored | |
1388 | )) | |
1389 | result-so-far) | |
7ed9159a | 1390 | |
ddd1c214 | 1391 | (defsubst ses-relocate-symbol (sym rowcol startrow startcol rowincr colincr) |
4bdf2ad2 | 1392 | "Relocate one symbol SYM, which corresponds to ROWCOL (a cons of ROW and |
ddd1c214 JY |
1393 | COL). Cells starting at (STARTROW,STARTCOL) are being shifted |
1394 | by (ROWINCR,COLINCR)." | |
1395 | (let ((row (car rowcol)) | |
1396 | (col (cdr rowcol))) | |
1397 | (if (or (< row startrow) (< col startcol)) | |
1398 | sym | |
1399 | (setq row (+ row rowincr) | |
1400 | col (+ col colincr)) | |
1401 | (if (and (>= row startrow) (>= col startcol) | |
1402 | (< row ses--numrows) (< col ses--numcols)) | |
1403 | ;;Relocate this variable | |
1404 | (ses-create-cell-symbol row col) | |
1405 | ;;Delete reference to a deleted cell | |
1406 | nil)))) | |
1407 | ||
7ed9159a JY |
1408 | (defun ses-relocate-formula (formula startrow startcol rowincr colincr) |
1409 | "Produce a copy of FORMULA where all symbols that refer to cells in row | |
4bdf2ad2 VB |
1410 | STARTROW or above, and col STARTCOL or above, are altered by adding ROWINCR |
1411 | and COLINCR. STARTROW and STARTCOL are 0-based. Example: | |
7ed9159a JY |
1412 | (ses-relocate-formula '(+ A1 B2 D3) 1 2 1 -1) |
1413 | => (+ A1 B2 C4) | |
1414 | If ROWINCR or COLINCR is negative, references to cells being deleted are | |
1415 | removed. Example: | |
1416 | (ses-relocate-formula '(+ A1 B2 D3) 0 1 0 -1) | |
1417 | => (+ A1 C3) | |
1418 | Sets `ses-relocate-return' to 'delete if cell-references were removed." | |
1419 | (let (rowcol result) | |
1420 | (if (or (atom formula) (eq (car formula) 'quote)) | |
4bdf2ad2 VB |
1421 | (if (and (setq rowcol (ses-sym-rowcol formula)) |
1422 | (string-match "\\`[A-Z]+[0-9]+\\'" (symbol-name formula))) | |
7ed9159a JY |
1423 | (ses-relocate-symbol formula rowcol |
1424 | startrow startcol rowincr colincr) | |
2bb63e81 | 1425 | formula) ; Pass through as-is. |
7ed9159a JY |
1426 | (dolist (cur formula) |
1427 | (setq rowcol (ses-sym-rowcol cur)) | |
1428 | (cond | |
1429 | (rowcol | |
1430 | (setq cur (ses-relocate-symbol cur rowcol | |
1431 | startrow startcol rowincr colincr)) | |
1432 | (if cur | |
1433 | (push cur result) | |
2bb63e81 VB |
1434 | ;; Reference to a deleted cell. Set a flag in ses-relocate-return. |
1435 | ;; don't change the flag if it's already 'range, since range implies | |
1436 | ;; 'delete. | |
7ed9159a JY |
1437 | (unless ses-relocate-return |
1438 | (setq ses-relocate-return 'delete)))) | |
1439 | ((eq (car-safe cur) 'ses-range) | |
1440 | (setq cur (ses-relocate-range cur startrow startcol rowincr colincr)) | |
1441 | (if cur | |
1442 | (push cur result))) | |
1443 | ((or (atom cur) (eq (car cur) 'quote)) | |
2bb63e81 | 1444 | ;; Constants pass through unchanged. |
7ed9159a JY |
1445 | (push cur result)) |
1446 | (t | |
2bb63e81 | 1447 | ;; Recursively copy and alter subformulas. |
7ed9159a JY |
1448 | (push (ses-relocate-formula cur startrow startcol |
1449 | rowincr colincr) | |
1450 | result)))) | |
1451 | (nreverse result)))) | |
1452 | ||
7ed9159a JY |
1453 | (defun ses-relocate-range (range startrow startcol rowincr colincr) |
1454 | "Relocate one RANGE, of the form '(ses-range min max). Cells starting | |
1455 | at (STARTROW,STARTCOL) are being shifted by (ROWINCR,COLINCR). Result is the | |
1456 | new range, or nil if the entire range is deleted. If new rows are being added | |
1457 | just beyond the end of a row range, or new columns just beyond a column range, | |
1458 | the new rows/columns will be added to the range. Sets `ses-relocate-return' | |
1459 | if the range was altered." | |
1460 | (let* ((minorig (cadr range)) | |
1461 | (minrowcol (ses-sym-rowcol minorig)) | |
1462 | (min (ses-relocate-symbol minorig minrowcol | |
1463 | startrow startcol | |
1464 | rowincr colincr)) | |
1465 | (maxorig (nth 2 range)) | |
1466 | (maxrowcol (ses-sym-rowcol maxorig)) | |
1467 | (max (ses-relocate-symbol maxorig maxrowcol | |
1468 | startrow startcol | |
1469 | rowincr colincr)) | |
1470 | field) | |
1471 | (cond | |
1472 | ((and (not min) (not max)) | |
2bb63e81 | 1473 | (setq range nil)) ; The entire range is deleted. |
7ed9159a | 1474 | ((zerop colincr) |
2bb63e81 | 1475 | ;; Inserting or deleting rows. |
7ed9159a JY |
1476 | (setq field 'car) |
1477 | (if (not min) | |
2bb63e81 | 1478 | ;; Chopped off beginning of range. |
7ed9159a JY |
1479 | (setq min (ses-create-cell-symbol startrow (cdr minrowcol)) |
1480 | ses-relocate-return 'range)) | |
1481 | (if (not max) | |
1482 | (if (> rowincr 0) | |
2bb63e81 | 1483 | ;; Trying to insert a nonexistent row. |
94be2532 JY |
1484 | (setq max (ses-create-cell-symbol (1- ses--numrows) |
1485 | (cdr minrowcol))) | |
2bb63e81 | 1486 | ;; End of range is being deleted. |
7ed9159a JY |
1487 | (setq max (ses-create-cell-symbol (1- startrow) (cdr minrowcol)) |
1488 | ses-relocate-return 'range)) | |
1489 | (and (> rowincr 0) | |
1490 | (= (car maxrowcol) (1- startrow)) | |
1491 | (= (cdr minrowcol) (cdr maxrowcol)) | |
2bb63e81 | 1492 | ;; Insert after ending row of vertical range --- include it. |
7ed9159a JY |
1493 | (setq max (ses-create-cell-symbol (+ startrow rowincr -1) |
1494 | (cdr maxrowcol)))))) | |
1495 | (t | |
2bb63e81 | 1496 | ;; Inserting or deleting columns. |
7ed9159a JY |
1497 | (setq field 'cdr) |
1498 | (if (not min) | |
2bb63e81 | 1499 | ;; Chopped off beginning of range. |
7ed9159a JY |
1500 | (setq min (ses-create-cell-symbol (car minrowcol) startcol) |
1501 | ses-relocate-return 'range)) | |
1502 | (if (not max) | |
1503 | (if (> colincr 0) | |
2bb63e81 | 1504 | ;; Trying to insert a nonexistent column. |
94be2532 JY |
1505 | (setq max (ses-create-cell-symbol (car maxrowcol) |
1506 | (1- ses--numcols))) | |
2bb63e81 | 1507 | ;; End of range is being deleted. |
7ed9159a JY |
1508 | (setq max (ses-create-cell-symbol (car maxrowcol) (1- startcol)) |
1509 | ses-relocate-return 'range)) | |
1510 | (and (> colincr 0) | |
1511 | (= (cdr maxrowcol) (1- startcol)) | |
1512 | (= (car minrowcol) (car maxrowcol)) | |
2bb63e81 | 1513 | ;; Insert after ending column of horizontal range --- include it. |
7ed9159a JY |
1514 | (setq max (ses-create-cell-symbol (car maxrowcol) |
1515 | (+ startcol colincr -1))))))) | |
1516 | (when range | |
1517 | (if (/= (- (funcall field maxrowcol) | |
1518 | (funcall field minrowcol)) | |
1519 | (- (funcall field (ses-sym-rowcol max)) | |
1520 | (funcall field (ses-sym-rowcol min)))) | |
2bb63e81 | 1521 | ;; This range has changed size. |
7ed9159a | 1522 | (setq ses-relocate-return 'range)) |
cedc73f2 | 1523 | `(ses-range ,min ,max ,@(cdddr range))))) |
7ed9159a JY |
1524 | |
1525 | (defun ses-relocate-all (minrow mincol rowincr colincr) | |
1526 | "Alter all cell values, symbols, formulas, and reference-lists to relocate | |
1527 | the rectangle (MINROW,MINCOL)..(NUMROWS,NUMCOLS) by adding ROWINCR and COLINCR | |
1528 | to each symbol." | |
1529 | (let (reform) | |
4bdf2ad2 | 1530 | (let (mycell newval xrow) |
7c018923 | 1531 | (dotimes-with-progress-reporter |
90ca8b49 | 1532 | (row ses--numrows) "Relocating formulas..." |
94be2532 | 1533 | (dotimes (col ses--numcols) |
7ed9159a JY |
1534 | (setq ses-relocate-return nil |
1535 | mycell (ses-get-cell row col) | |
1536 | newval (ses-relocate-formula (ses-cell-formula mycell) | |
4bdf2ad2 VB |
1537 | minrow mincol rowincr colincr) |
1538 | xrow (- row rowincr)) | |
7ed9159a JY |
1539 | (ses-set-cell row col 'formula newval) |
1540 | (if (eq ses-relocate-return 'range) | |
2bb63e81 VB |
1541 | ;; This cell contains a (ses-range X Y) where a cell has been |
1542 | ;; inserted or deleted in the middle of the range. | |
7ed9159a JY |
1543 | (push (cons row col) reform)) |
1544 | (if ses-relocate-return | |
2bb63e81 VB |
1545 | ;; This cell referred to a cell that's been deleted or is no |
1546 | ;; longer part of the range. We can't fix that now because | |
1547 | ;; reference lists cells have been partially updated. | |
94be2532 | 1548 | (add-to-list 'ses--deferred-recalc |
7ed9159a JY |
1549 | (ses-create-cell-symbol row col))) |
1550 | (setq newval (ses-relocate-formula (ses-cell-references mycell) | |
1551 | minrow mincol rowincr colincr)) | |
1552 | (ses-set-cell row col 'references newval) | |
1553 | (and (>= row minrow) (>= col mincol) | |
4bdf2ad2 VB |
1554 | (let ((sym (ses-cell-symbol row col)) |
1555 | (xcol (- col colincr))) | |
1556 | (if (and | |
1557 | sym | |
1558 | (>= xrow 0) | |
1559 | (>= xcol 0) | |
1560 | (null (eq sym | |
1561 | (ses-create-cell-symbol xrow xcol)))) | |
1562 | ;; This is a renamed cell, do not update the cell | |
1563 | ;; name, but just update the coordinate property. | |
1564 | (put sym 'ses-cell (cons row col)) | |
1565 | (ses-set-cell row col 'symbol | |
1566 | (setq sym (ses-create-cell-symbol row col))) | |
1567 | (unless (and (boundp sym) (local-variable-p sym)) | |
1568 | (set (make-local-variable sym) nil) | |
1569 | (put sym 'ses-cell (cons row col)))))) ))) | |
2bb63e81 | 1570 | ;; Relocate the cell values. |
7ed9159a JY |
1571 | (let (oldval myrow mycol xrow xcol) |
1572 | (cond | |
1573 | ((and (<= rowincr 0) (<= colincr 0)) | |
2bb63e81 | 1574 | ;; Deletion of rows and/or columns. |
7c018923 | 1575 | (dotimes-with-progress-reporter |
2bb63e81 | 1576 | (row (- ses--numrows minrow)) "Relocating variables..." |
7ed9159a | 1577 | (setq myrow (+ row minrow)) |
94be2532 | 1578 | (dotimes (col (- ses--numcols mincol)) |
7ed9159a JY |
1579 | (setq mycol (+ col mincol) |
1580 | xrow (- myrow rowincr) | |
1581 | xcol (- mycol colincr)) | |
4bdf2ad2 VB |
1582 | (let ((sym (ses-cell-symbol myrow mycol)) |
1583 | (xsym (ses-create-cell-symbol xrow xcol))) | |
1584 | ;; Make the value relocation only when if the cell is not | |
1585 | ;; a renamed cell. Otherwise this is not needed. | |
1586 | (and (eq sym xsym) | |
1587 | (ses-set-cell myrow mycol 'value | |
1588 | (if (and (< xrow ses--numrows) (< xcol ses--numcols)) | |
1589 | (ses-cell-value xrow xcol) | |
1590 | ;;Cell is off the end of the array | |
1591 | (symbol-value xsym)))))))) | |
1592 | ||
7ed9159a | 1593 | ((and (wholenump rowincr) (wholenump colincr)) |
2bb63e81 | 1594 | ;; Insertion of rows and/or columns. Run the loop backwards. |
94be2532 JY |
1595 | (let ((disty (1- ses--numrows)) |
1596 | (distx (1- ses--numcols)) | |
7ed9159a | 1597 | myrow mycol) |
7c018923 SM |
1598 | (dotimes-with-progress-reporter |
1599 | (row (- ses--numrows minrow)) "Relocating variables..." | |
7ed9159a | 1600 | (setq myrow (- disty row)) |
94be2532 | 1601 | (dotimes (col (- ses--numcols mincol)) |
7ed9159a JY |
1602 | (setq mycol (- distx col) |
1603 | xrow (- myrow rowincr) | |
1604 | xcol (- mycol colincr)) | |
1605 | (if (or (< xrow minrow) (< xcol mincol)) | |
2bb63e81 | 1606 | ;; Newly-inserted value. |
7ed9159a | 1607 | (setq oldval nil) |
2bb63e81 | 1608 | ;; Transfer old value. |
7ed9159a JY |
1609 | (setq oldval (ses-cell-value xrow xcol))) |
1610 | (ses-set-cell myrow mycol 'value oldval))) | |
2bb63e81 | 1611 | t)) ; Make testcover happy by returning non-nil here. |
7ed9159a JY |
1612 | (t |
1613 | (error "ROWINCR and COLINCR must have the same sign")))) | |
2bb63e81 VB |
1614 | ;; Reconstruct reference lists for cells that contain ses-ranges that have |
1615 | ;; changed size. | |
7ed9159a JY |
1616 | (when reform |
1617 | (message "Fixing ses-ranges...") | |
1618 | (let (row col) | |
1619 | (setq ses-start-time (float-time)) | |
1620 | (while reform | |
1621 | (ses-time-check "Fixing ses-ranges... (%d left)" '(length reform)) | |
1622 | (setq row (caar reform) | |
1623 | col (cdar reform) | |
1624 | reform (cdr reform)) | |
1625 | (ses-cell-set-formula row col (ses-cell-formula row col)))) | |
1626 | (message nil)))) | |
1627 | ||
1628 | ||
58cf70d3 SM |
1629 | ;;---------------------------------------------------------------------------- |
1630 | ;; Undo control | |
1631 | ;;---------------------------------------------------------------------------- | |
7ed9159a | 1632 | |
7ed9159a | 1633 | (defun ses-begin-change () |
137e4002 | 1634 | "For undo, remember point before we start changing hidden stuff." |
7ed9159a JY |
1635 | (let ((inhibit-read-only t)) |
1636 | (insert-and-inherit "X") | |
1637 | (delete-region (1- (point)) (point)))) | |
1638 | ||
1639 | (defun ses-set-with-undo (sym newval) | |
1640 | "Like set, but undoable. Result is t if value has changed." | |
2bb63e81 VB |
1641 | ;; We try to avoid adding redundant entries to the undo list, but this is |
1642 | ;; unavoidable for strings because equal ignores text properties and there's | |
1643 | ;; no easy way to get the whole property list to see if it's different! | |
7ed9159a JY |
1644 | (unless (and (boundp sym) |
1645 | (equal (symbol-value sym) newval) | |
1646 | (not (stringp newval))) | |
1647 | (push (if (boundp sym) | |
63f3351c KS |
1648 | `(apply ses-set-with-undo ,sym ,(symbol-value sym)) |
1649 | `(apply ses-unset-with-undo ,sym)) | |
7ed9159a JY |
1650 | buffer-undo-list) |
1651 | (set sym newval) | |
1652 | t)) | |
1653 | ||
1654 | (defun ses-unset-with-undo (sym) | |
1655 | "Set SYM to be unbound. This is undoable." | |
2bb63e81 | 1656 | (when (1value (boundp sym)) ; Always bound, except after a programming error. |
63f3351c | 1657 | (push `(apply ses-set-with-undo ,sym ,(symbol-value sym)) buffer-undo-list) |
7ed9159a JY |
1658 | (makunbound sym))) |
1659 | ||
1660 | (defun ses-aset-with-undo (array idx newval) | |
4bdf2ad2 VB |
1661 | "Like `aset', but undoable. |
1662 | Result is t if element has changed." | |
7ed9159a | 1663 | (unless (equal (aref array idx) newval) |
2bb63e81 VB |
1664 | (push `(apply ses-aset-with-undo ,array ,idx |
1665 | ,(aref array idx)) buffer-undo-list) | |
7ed9159a JY |
1666 | (aset array idx newval) |
1667 | t)) | |
1668 | ||
1669 | ||
58cf70d3 SM |
1670 | ;;---------------------------------------------------------------------------- |
1671 | ;; Startup for major mode | |
1672 | ;;---------------------------------------------------------------------------- | |
7ed9159a | 1673 | |
7ed9159a | 1674 | (defun ses-load () |
4bdf2ad2 VB |
1675 | "Parse the current buffer and set up buffer-local variables. |
1676 | Does not execute cell formulas or print functions." | |
7ed9159a | 1677 | (widen) |
2bb63e81 | 1678 | ;; Read our global parameters, which should be a 3-element list. |
7ed9159a | 1679 | (goto-char (point-max)) |
58cf70d3 | 1680 | (search-backward ";; Local Variables:\n" nil t) |
7ed9159a | 1681 | (backward-list 1) |
ddd1c214 | 1682 | (setq ses--params-marker (point-marker)) |
58cf70d3 | 1683 | (let ((params (condition-case nil (read (current-buffer)) (error nil)))) |
7ed9159a JY |
1684 | (or (and (= (safe-length params) 3) |
1685 | (numberp (car params)) | |
1686 | (numberp (cadr params)) | |
bd93e3e1 | 1687 | (>= (cadr params) 0) |
7ed9159a JY |
1688 | (numberp (nth 2 params)) |
1689 | (> (nth 2 params) 0)) | |
1690 | (error "Invalid SES file")) | |
94be2532 JY |
1691 | (setq ses--file-format (car params) |
1692 | ses--numrows (cadr params) | |
1693 | ses--numcols (nth 2 params)) | |
1694 | (when (= ses--file-format 1) | |
2bb63e81 | 1695 | (let (buffer-undo-list) ; This is not undoable. |
94be2532 | 1696 | (ses-goto-data 'ses--header-row) |
7ed9159a | 1697 | (insert "(ses-header-row 0)\n") |
94be2532 | 1698 | (ses-set-parameter 'ses--file-format 2) |
7ed9159a | 1699 | (message "Upgrading from SES-1 file format"))) |
94be2532 | 1700 | (or (= ses--file-format 2) |
e20bb629 | 1701 | (error "This file needs a newer version of the SES library code")) |
2bb63e81 | 1702 | ;; Initialize cell array. |
94be2532 JY |
1703 | (setq ses--cells (make-vector ses--numrows nil)) |
1704 | (dotimes (row ses--numrows) | |
1705 | (aset ses--cells row (make-vector ses--numcols nil)))) | |
2bb63e81 | 1706 | ;; Skip over print area, which we assume is correct. |
94be2532 JY |
1707 | (goto-char (point-min)) |
1708 | (forward-line ses--numrows) | |
7ed9159a JY |
1709 | (or (looking-at ses-print-data-boundary) |
1710 | (error "Missing marker between print and data areas")) | |
ddd1c214 JY |
1711 | (forward-char 1) |
1712 | (setq ses--data-marker (point-marker)) | |
1713 | (forward-char (1- (length ses-print-data-boundary))) | |
2bb63e81 | 1714 | ;; Initialize printer and symbol lists. |
7ed9159a | 1715 | (mapc 'ses-printer-record ses-standard-printer-functions) |
94be2532 | 1716 | (setq ses--symbolic-formulas nil) |
2bb63e81 | 1717 | ;; Load cell definitions. |
94be2532 JY |
1718 | (dotimes (row ses--numrows) |
1719 | (dotimes (col ses--numcols) | |
7ed9159a | 1720 | (let* ((x (read (current-buffer))) |
4bdf2ad2 | 1721 | (sym (car-safe (cdr-safe x)))) |
7ed9159a JY |
1722 | (or (and (looking-at "\n") |
1723 | (eq (car-safe x) 'ses-cell) | |
4bdf2ad2 | 1724 | (ses-create-cell-variable sym row col)) |
7ed9159a JY |
1725 | (error "Cell-def error")) |
1726 | (eval x))) | |
1727 | (or (looking-at "\n\n") | |
1728 | (error "Missing blank line between rows"))) | |
2bb63e81 | 1729 | ;; Load global parameters. |
7ed9159a JY |
1730 | (let ((widths (read (current-buffer))) |
1731 | (n1 (char-after (point))) | |
1732 | (printers (read (current-buffer))) | |
1733 | (n2 (char-after (point))) | |
1734 | (def-printer (read (current-buffer))) | |
1735 | (n3 (char-after (point))) | |
1736 | (head-row (read (current-buffer))) | |
1737 | (n4 (char-after (point)))) | |
1738 | (or (and (eq (car-safe widths) 'ses-column-widths) | |
1739 | (= n1 ?\n) | |
1740 | (eq (car-safe printers) 'ses-column-printers) | |
1741 | (= n2 ?\n) | |
1742 | (eq (car-safe def-printer) 'ses-default-printer) | |
1743 | (= n3 ?\n) | |
1744 | (eq (car-safe head-row) 'ses-header-row) | |
1745 | (= n4 ?\n)) | |
1746 | (error "Invalid SES global parameters")) | |
1747 | (1value (eval widths)) | |
1748 | (1value (eval def-printer)) | |
1749 | (1value (eval printers)) | |
1750 | (1value (eval head-row))) | |
2bb63e81 | 1751 | ;; Should be back at global-params. |
7ed9159a JY |
1752 | (forward-char 1) |
1753 | (or (looking-at (replace-regexp-in-string "1" "[0-9]+" | |
1754 | ses-initial-global-parameters)) | |
1755 | (error "Problem with column-defs or global-params")) | |
2bb63e81 | 1756 | ;; Check for overall newline count in definitions area. |
7ed9159a JY |
1757 | (forward-line 3) |
1758 | (let ((start (point))) | |
94be2532 | 1759 | (ses-goto-data 'ses--numrows) |
7ed9159a JY |
1760 | (or (= (point) start) |
1761 | (error "Extraneous newlines someplace?")))) | |
1762 | ||
1763 | (defun ses-setup () | |
1764 | "Set up for display of only the printed cell values. | |
1765 | ||
1766 | Narrows the buffer to show only the print area. Gives it `read-only' and | |
1767 | `intangible' properties. Sets up highlighting for current cell." | |
1768 | (interactive) | |
94be2532 | 1769 | (let ((end (point-min)) |
7ed9159a | 1770 | (inhibit-read-only t) |
c0c30dd1 | 1771 | (inhibit-point-motion-hooks t) |
7ed9159a JY |
1772 | (was-modified (buffer-modified-p)) |
1773 | pos sym) | |
2bb63e81 VB |
1774 | (ses-goto-data 0 0) ; Include marker between print-area and data-area. |
1775 | (set-text-properties (point) (point-max) nil) ; Delete garbage props. | |
94be2532 | 1776 | (mapc 'delete-overlay (overlays-in (point-min) (point-max))) |
2bb63e81 VB |
1777 | ;; The print area is read-only (except for our special commands) and uses a |
1778 | ;; special keymap. | |
94be2532 JY |
1779 | (put-text-property (point-min) (1- (point)) 'read-only 'ses) |
1780 | (put-text-property (point-min) (1- (point)) 'keymap 'ses-mode-print-map) | |
2bb63e81 VB |
1781 | ;; For the beginning of the buffer, we want the read-only and keymap |
1782 | ;; attributes to be inherited from the first character. | |
94be2532 | 1783 | (put-text-property (point-min) (1+ (point-min)) 'front-sticky t) |
2bb63e81 VB |
1784 | ;; Create intangible properties, which also indicate which cell the text |
1785 | ;; came from. | |
7c018923 | 1786 | (dotimes-with-progress-reporter (row ses--numrows) "Finding cells..." |
94be2532 | 1787 | (dotimes (col ses--numcols) |
7ed9159a JY |
1788 | (setq pos end |
1789 | sym (ses-cell-symbol row col)) | |
2bb63e81 | 1790 | ;; Include skipped cells following this one. |
94be2532 | 1791 | (while (and (< col (1- ses--numcols)) |
7ed9159a JY |
1792 | (eq (ses-cell-value row (1+ col)) '*skip*)) |
1793 | (setq end (+ end (ses-col-width col) 1) | |
1794 | col (1+ col))) | |
c0c30dd1 JY |
1795 | (setq end (save-excursion |
1796 | (goto-char pos) | |
1797 | (move-to-column (+ (current-column) (- end pos) | |
1798 | (ses-col-width col))) | |
1799 | (if (eolp) | |
1800 | (+ end (ses-col-width col) 1) | |
1801 | (forward-char) | |
1802 | (point)))) | |
7ed9159a | 1803 | (put-text-property pos end 'intangible sym))) |
2bb63e81 | 1804 | ;; Adding these properties did not actually alter the text. |
7ed9159a | 1805 | (unless was-modified |
58cf70d3 | 1806 | (restore-buffer-modified-p nil) |
7ed9159a JY |
1807 | (buffer-disable-undo) |
1808 | (buffer-enable-undo))) | |
2bb63e81 VB |
1809 | ;; Create the underlining overlay. It's impossible for (point) to be 2, |
1810 | ;; because column A must be at least 1 column wide. | |
94be2532 JY |
1811 | (setq ses--curcell-overlay (make-overlay (1+ (point-min)) (1+ (point-min)))) |
1812 | (overlay-put ses--curcell-overlay 'face 'underline)) | |
7ed9159a JY |
1813 | |
1814 | (defun ses-cleanup () | |
ae59e888 SM |
1815 | "Cleanup when changing a buffer from SES mode to something else. |
1816 | Delete overlays, remove special text properties." | |
7ed9159a JY |
1817 | (widen) |
1818 | (let ((inhibit-read-only t) | |
2bb63e81 VB |
1819 | ;; When reverting, hide the buffer name, otherwise Emacs will ask the |
1820 | ;; user "the file is modified, do you really want to make modifications | |
1821 | ;; to this buffer", where the "modifications" refer to the irrelevant | |
1822 | ;; set-text-properties below. | |
1823 | (buffer-file-name nil) | |
58cf70d3 | 1824 | (was-modified (buffer-modified-p))) |
2bb63e81 | 1825 | ;; Delete read-only, keymap, and intangible properties. |
94be2532 | 1826 | (set-text-properties (point-min) (point-max) nil) |
2bb63e81 | 1827 | ;; Delete overlay. |
94be2532 | 1828 | (mapc 'delete-overlay (overlays-in (point-min) (point-max))) |
7ed9159a | 1829 | (unless was-modified |
ae59e888 | 1830 | (restore-buffer-modified-p nil)))) |
7ed9159a JY |
1831 | |
1832 | ;;;###autoload | |
1833 | (defun ses-mode () | |
94be2532 | 1834 | "Major mode for Simple Emacs Spreadsheet. |
e27dad25 | 1835 | See \"ses-example.ses\" (in `data-directory') for more info. |
7ed9159a JY |
1836 | |
1837 | Key definitions: | |
1838 | \\{ses-mode-map} | |
1839 | These key definitions are active only in the print area (the visible part): | |
1840 | \\{ses-mode-print-map} | |
1841 | These are active only in the minibuffer, when entering or editing a formula: | |
1842 | \\{ses-mode-edit-map}" | |
1843 | (interactive) | |
94be2532 JY |
1844 | (unless (and (boundp 'ses--deferred-narrow) |
1845 | (eq ses--deferred-narrow 'ses-mode)) | |
7ed9159a | 1846 | (kill-all-local-variables) |
90ca8b49 | 1847 | (ses-set-localvars) |
7ed9159a JY |
1848 | (setq major-mode 'ses-mode |
1849 | mode-name "SES" | |
1850 | next-line-add-newlines nil | |
1851 | truncate-lines t | |
2bb63e81 | 1852 | ;; SES deliberately puts lots of trailing whitespace in its buffer. |
7ed9159a | 1853 | show-trailing-whitespace nil |
2bb63e81 | 1854 | ;; Cell ranges do not work reasonably without this. |
c0c30dd1 | 1855 | transient-mark-mode t |
2bb63e81 VB |
1856 | ;; Not to use tab characters for safe (tabs may do bad for column |
1857 | ;; calculation). | |
c0c30dd1 | 1858 | indent-tabs-mode nil) |
7ed9159a JY |
1859 | (1value (add-hook 'change-major-mode-hook 'ses-cleanup nil t)) |
1860 | (1value (add-hook 'before-revert-hook 'ses-cleanup nil t)) | |
90ca8b49 | 1861 | (setq header-line-format '(:eval (progn |
94be2532 JY |
1862 | (when (/= (window-hscroll) |
1863 | ses--header-hscroll) | |
2bb63e81 VB |
1864 | ;; Reset ses--header-hscroll first, |
1865 | ;; to avoid recursion problems when | |
1866 | ;; debugging ses-create-header-string | |
94be2532 JY |
1867 | (setq ses--header-hscroll |
1868 | (window-hscroll)) | |
1869 | (ses-create-header-string)) | |
1870 | ses--header-string))) | |
7ed9159a JY |
1871 | (let ((was-empty (zerop (buffer-size))) |
1872 | (was-modified (buffer-modified-p))) | |
1873 | (save-excursion | |
1874 | (if was-empty | |
2bb63e81 | 1875 | ;; Initialize buffer to contain one cell, for now. |
7ed9159a JY |
1876 | (insert ses-initial-file-contents)) |
1877 | (ses-load) | |
1878 | (ses-setup)) | |
1879 | (when was-empty | |
2bb63e81 VB |
1880 | (unless (equal ses-initial-default-printer |
1881 | (1value ses--default-printer)) | |
7ed9159a JY |
1882 | (1value (ses-read-default-printer ses-initial-default-printer))) |
1883 | (unless (= ses-initial-column-width (1value (ses-col-width 0))) | |
1884 | (1value (ses-set-column-width 0 ses-initial-column-width))) | |
1885 | (ses-set-curcell) | |
94be2532 | 1886 | (if (> (car ses-initial-size) (1value ses--numrows)) |
7ed9159a | 1887 | (1value (ses-insert-row (1- (car ses-initial-size))))) |
94be2532 | 1888 | (if (> (cdr ses-initial-size) (1value ses--numcols)) |
7ed9159a JY |
1889 | (1value (ses-insert-column (1- (cdr ses-initial-size))))) |
1890 | (ses-write-cells) | |
94be2532 | 1891 | (restore-buffer-modified-p was-modified) |
7ed9159a JY |
1892 | (buffer-disable-undo) |
1893 | (buffer-enable-undo) | |
94be2532 | 1894 | (goto-char (point-min)))) |
7ed9159a | 1895 | (use-local-map ses-mode-map) |
2bb63e81 VB |
1896 | ;; Set the deferred narrowing flag (we can't narrow until after |
1897 | ;; after-find-file completes). If .ses is on the auto-load alist and the | |
1898 | ;; file has "mode: ses", our ses-mode function will be called twice! Use a | |
1899 | ;; special flag to detect this (will be reset by ses-command-hook). For | |
1900 | ;; find-alternate-file, post-command-hook doesn't get run for some reason, | |
1901 | ;; so use an idle timer to make sure. | |
94be2532 | 1902 | (setq ses--deferred-narrow 'ses-mode) |
7ed9159a JY |
1903 | (1value (add-hook 'post-command-hook 'ses-command-hook nil t)) |
1904 | (run-with-idle-timer 0.01 nil 'ses-command-hook) | |
859540e3 | 1905 | (run-mode-hooks 'ses-mode-hook))) |
7ed9159a JY |
1906 | |
1907 | (put 'ses-mode 'mode-class 'special) | |
1908 | ||
1909 | (defun ses-command-hook () | |
1910 | "Invoked from `post-command-hook'. If point has moved to a different cell, | |
1911 | moves the underlining overlay. Performs any recalculations or cell-data | |
1912 | writes that have been deferred. If buffer-narrowing has been deferred, | |
1913 | narrows the buffer now." | |
1914 | (condition-case err | |
2bb63e81 | 1915 | (when (eq major-mode 'ses-mode) ; Otherwise, not our buffer anymore. |
94be2532 | 1916 | (when ses--deferred-recalc |
2bb63e81 VB |
1917 | ;; We reset the deferred list before starting on the recalc --- in |
1918 | ;; case of error, we don't want to retry the recalc after every | |
1919 | ;; keystroke! | |
90ca8b49 | 1920 | (ses-initialize-Dijkstra-attempt) |
94be2532 JY |
1921 | (let ((old ses--deferred-recalc)) |
1922 | (setq ses--deferred-recalc nil) | |
7ed9159a | 1923 | (ses-update-cells old))) |
bd93e3e1 | 1924 | (when ses--deferred-write |
2bb63e81 VB |
1925 | ;; We don't reset the deferred list before starting --- the most |
1926 | ;; likely error is keyboard-quit, and we do want to keep trying these | |
1927 | ;; writes after a quit. | |
bd93e3e1 JY |
1928 | (ses-write-cells) |
1929 | (push '(apply ses-widen) buffer-undo-list)) | |
94be2532 | 1930 | (when ses--deferred-narrow |
2bb63e81 VB |
1931 | ;; We're not allowed to narrow the buffer until after-find-file has |
1932 | ;; read the local variables at the end of the file. Now it's safe to | |
1933 | ;; do the narrowing. | |
ddd1c214 | 1934 | (narrow-to-region (point-min) ses--data-marker) |
94be2532 | 1935 | (setq ses--deferred-narrow nil)) |
2bb63e81 | 1936 | ;; Update the modeline. |
94be2532 | 1937 | (let ((oldcell ses--curcell)) |
7ed9159a | 1938 | (ses-set-curcell) |
94be2532 | 1939 | (unless (eq ses--curcell oldcell) |
7ed9159a | 1940 | (cond |
94be2532 | 1941 | ((not ses--curcell) |
7ed9159a | 1942 | (setq mode-line-process nil)) |
94be2532 JY |
1943 | ((atom ses--curcell) |
1944 | (setq mode-line-process (list " cell " | |
1945 | (symbol-name ses--curcell)))) | |
7ed9159a JY |
1946 | (t |
1947 | (setq mode-line-process (list " range " | |
94be2532 | 1948 | (symbol-name (car ses--curcell)) |
7ed9159a | 1949 | "-" |
94be2532 | 1950 | (symbol-name (cdr ses--curcell)))))) |
7ed9159a | 1951 | (force-mode-line-update))) |
2bb63e81 | 1952 | ;; Use underline overlay for single-cells only, turn off otherwise. |
94be2532 JY |
1953 | (if (listp ses--curcell) |
1954 | (move-overlay ses--curcell-overlay 2 2) | |
7ed9159a | 1955 | (let ((next (next-single-property-change (point) 'intangible))) |
94be2532 | 1956 | (move-overlay ses--curcell-overlay (point) (1- next)))) |
7ed9159a | 1957 | (when (not (pos-visible-in-window-p)) |
2bb63e81 | 1958 | ;; Scrolling will happen later. |
7ed9159a | 1959 | (run-with-idle-timer 0.01 nil 'ses-command-hook) |
94be2532 | 1960 | (setq ses--curcell t))) |
2bb63e81 | 1961 | ;; Prevent errors in this post-command-hook from silently erasing the hook! |
7ed9159a JY |
1962 | (error |
1963 | (unless executing-kbd-macro | |
1964 | (ding)) | |
8a26c165 | 1965 | (message "%s" (error-message-string err)))) |
2bb63e81 | 1966 | nil) ; Make coverage-tester happy. |
7ed9159a JY |
1967 | |
1968 | (defun ses-create-header-string () | |
58cf70d3 SM |
1969 | "Set up `ses--header-string' as the buffer's header line. |
1970 | Based on the current set of columns and `window-hscroll' position." | |
1971 | (let ((totwidth (- (window-hscroll))) | |
1972 | result width x) | |
2bb63e81 | 1973 | ;; Leave room for the left-side fringe and scrollbar. |
58cf70d3 | 1974 | (push (propertize " " 'display '((space :align-to 0))) result) |
94be2532 | 1975 | (dotimes (col ses--numcols) |
7ed9159a JY |
1976 | (setq width (ses-col-width col) |
1977 | totwidth (+ totwidth width 1)) | |
58cf70d3 | 1978 | (if (= totwidth 1) |
2bb63e81 | 1979 | ;; Scrolled so intercolumn space is leftmost. |
7ed9159a | 1980 | (push " " result)) |
58cf70d3 | 1981 | (when (> totwidth 1) |
94be2532 | 1982 | (if (> ses--header-row 0) |
7ed9159a | 1983 | (save-excursion |
94be2532 | 1984 | (ses-goto-print (1- ses--header-row) col) |
7ed9159a JY |
1985 | (setq x (buffer-substring-no-properties (point) |
1986 | (+ (point) width))) | |
58cf70d3 SM |
1987 | ;; Strip trailing space. |
1988 | (if (string-match "[ \t]+\\'" x) | |
1989 | (setq x (substring x 0 (match-beginning 0)))) | |
1990 | ;; Cut off excess text. | |
1991 | (if (>= (length x) totwidth) | |
1992 | (setq x (substring x 0 (- totwidth -1))))) | |
1993 | (setq x (ses-column-letter col))) | |
7ed9159a | 1994 | (push (propertize x 'face ses-box-prop) result) |
58cf70d3 | 1995 | (push (propertize "." |
7ed9159a JY |
1996 | 'display `((space :align-to ,(1- totwidth))) |
1997 | 'face ses-box-prop) | |
58cf70d3 | 1998 | result) |
2bb63e81 VB |
1999 | ;; Allow the following space to be squished to make room for the 3-D box |
2000 | ;; Coverage test ignores properties, thinks this is always a space! | |
7ed9159a JY |
2001 | (push (1value (propertize " " 'display `((space :align-to ,totwidth)))) |
2002 | result))) | |
94be2532 JY |
2003 | (if (> ses--header-row 0) |
2004 | (push (propertize (format " [row %d]" ses--header-row) | |
7ed9159a JY |
2005 | 'display '((height (- 1)))) |
2006 | result)) | |
94be2532 | 2007 | (setq ses--header-string (apply 'concat (nreverse result))))) |
7ed9159a JY |
2008 | |
2009 | ||
58cf70d3 SM |
2010 | ;;---------------------------------------------------------------------------- |
2011 | ;; Redisplay and recalculation | |
2012 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
2013 | |
2014 | (defun ses-jump (sym) | |
2015 | "Move point to cell SYM." | |
2016 | (interactive "SJump to cell: ") | |
2017 | (let ((rowcol (ses-sym-rowcol sym))) | |
2018 | (or rowcol (error "Invalid cell name")) | |
2019 | (if (eq (symbol-value sym) '*skip*) | |
2020 | (error "Cell is covered by preceding cell")) | |
2021 | (ses-goto-print (car rowcol) (cdr rowcol)))) | |
2022 | ||
2023 | (defun ses-jump-safe (cell) | |
2024 | "Like `ses-jump', but no error if invalid cell." | |
2025 | (condition-case nil | |
2026 | (ses-jump cell) | |
2027 | (error))) | |
2028 | ||
2029 | (defun ses-reprint-all (&optional nonarrow) | |
2030 | "Recreate the display area. Calls all printer functions. Narrows to | |
2031 | print area if NONARROW is nil." | |
2032 | (interactive "*P") | |
2033 | (widen) | |
2034 | (unless nonarrow | |
94be2532 | 2035 | (setq ses--deferred-narrow t)) |
7ed9159a JY |
2036 | (let ((startcell (get-text-property (point) 'intangible)) |
2037 | (inhibit-read-only t)) | |
2038 | (ses-begin-change) | |
94be2532 | 2039 | (goto-char (point-min)) |
7ed9159a JY |
2040 | (search-forward ses-print-data-boundary) |
2041 | (backward-char (length ses-print-data-boundary)) | |
94be2532 | 2042 | (delete-region (point-min) (point)) |
2bb63e81 VB |
2043 | ;; Insert all blank lines before printing anything, so ses-print-cell can |
2044 | ;; find the data area when inserting or deleting *skip* values for cells. | |
94be2532 JY |
2045 | (dotimes (row ses--numrows) |
2046 | (insert-and-inherit ses--blank-line)) | |
7c018923 | 2047 | (dotimes-with-progress-reporter (row ses--numrows) "Reprinting..." |
7ed9159a | 2048 | (if (eq (ses-cell-value row 0) '*skip*) |
2bb63e81 | 2049 | ;; Column deletion left a dangling skip. |
7ed9159a | 2050 | (ses-set-cell row 0 'value nil)) |
94be2532 | 2051 | (dotimes (col ses--numcols) |
7ed9159a JY |
2052 | (ses-print-cell row col)) |
2053 | (beginning-of-line 2)) | |
2054 | (ses-jump-safe startcell))) | |
2055 | ||
90ca8b49 VB |
2056 | (defun ses-initialize-Dijkstra-attempt () |
2057 | (setq ses--Dijkstra-attempt-nb (1+ ses--Dijkstra-attempt-nb) | |
2058 | ses--Dijkstra-weight-bound (* ses--numrows ses--numcols))) | |
2059 | ||
7ed9159a JY |
2060 | (defun ses-recalculate-cell () |
2061 | "Recalculate and reprint the current cell or range. | |
2062 | ||
2063 | For an individual cell, shows the error if the formula or printer | |
2064 | signals one, or otherwise shows the cell's complete value. For a range, the | |
2065 | cells are recalculated in \"natural\" order, so cells that other cells refer | |
2066 | to are recalculated first." | |
2067 | (interactive "*") | |
2068 | (ses-check-curcell 'range) | |
2069 | (ses-begin-change) | |
90ca8b49 VB |
2070 | (ses-initialize-Dijkstra-attempt) |
2071 | (let (sig cur-rowcol) | |
7ed9159a | 2072 | (setq ses-start-time (float-time)) |
94be2532 | 2073 | (if (atom ses--curcell) |
90ca8b49 VB |
2074 | (when |
2075 | (setq cur-rowcol (ses-sym-rowcol ses--curcell) | |
2076 | sig (progn | |
2077 | (ses-cell-property-set :ses-Dijkstra-attempt | |
2078 | (cons ses--Dijkstra-attempt-nb 0) | |
2079 | (car cur-rowcol) (cdr cur-rowcol) ) | |
2080 | (ses-calculate-cell (car cur-rowcol) (cdr cur-rowcol) t))) | |
2081 | (nconc sig (list (ses-cell-symbol (car cur-rowcol) | |
2082 | (cdr cur-rowcol))))) | |
2bb63e81 VB |
2083 | ;; First, recalculate all cells that don't refer to other cells and |
2084 | ;; produce a list of cells with references. | |
94be2532 | 2085 | (ses-dorange ses--curcell |
7ed9159a JY |
2086 | (ses-time-check "Recalculating... %s" '(ses-cell-symbol row col)) |
2087 | (condition-case nil | |
2088 | (progn | |
2bb63e81 VB |
2089 | ;; The t causes an error if the cell has references. If no |
2090 | ;; references, the t will be the result value. | |
7ed9159a | 2091 | (1value (ses-formula-references (ses-cell-formula row col) t)) |
90ca8b49 VB |
2092 | (ses-cell-property-set :ses-Dijkstra-attempt |
2093 | (cons ses--Dijkstra-attempt-nb 0) | |
2094 | row col) | |
2095 | (when (setq sig (ses-calculate-cell row col t)) | |
2096 | (nconc sig (list (ses-cell-symbol row col))))) | |
7ed9159a | 2097 | (wrong-type-argument |
2bb63e81 | 2098 | ;; The formula contains a reference. |
94be2532 | 2099 | (add-to-list 'ses--deferred-recalc (ses-cell-symbol row col)))))) |
2bb63e81 | 2100 | ;; Do the update now, so we can force recalculation. |
94be2532 JY |
2101 | (let ((x ses--deferred-recalc)) |
2102 | (setq ses--deferred-recalc nil) | |
7ed9159a JY |
2103 | (condition-case hold |
2104 | (ses-update-cells x t) | |
2105 | (error (setq sig hold)))) | |
2106 | (cond | |
2107 | (sig | |
8a26c165 | 2108 | (message "%s" (error-message-string sig))) |
94be2532 | 2109 | ((consp ses--curcell) |
7ed9159a JY |
2110 | (message " ")) |
2111 | (t | |
94be2532 | 2112 | (princ (symbol-value ses--curcell)))))) |
7ed9159a JY |
2113 | |
2114 | (defun ses-recalculate-all () | |
2115 | "Recalculate and reprint all cells." | |
2116 | (interactive "*") | |
94be2532 JY |
2117 | (let ((startcell (get-text-property (point) 'intangible)) |
2118 | (ses--curcell (cons 'A1 (ses-cell-symbol (1- ses--numrows) | |
2119 | (1- ses--numcols))))) | |
7ed9159a JY |
2120 | (ses-recalculate-cell) |
2121 | (ses-jump-safe startcell))) | |
2122 | ||
2123 | (defun ses-truncate-cell () | |
4bdf2ad2 | 2124 | "Reprint current cell, but without spillover into any following blank cells." |
7ed9159a JY |
2125 | (interactive "*") |
2126 | (ses-check-curcell) | |
94be2532 | 2127 | (let* ((rowcol (ses-sym-rowcol ses--curcell)) |
7ed9159a JY |
2128 | (row (car rowcol)) |
2129 | (col (cdr rowcol))) | |
94be2532 | 2130 | (when (and (< col (1- ses--numcols)) ;;Last column can't spill over, anyway |
7ed9159a | 2131 | (eq (ses-cell-value row (1+ col)) '*skip*)) |
2bb63e81 VB |
2132 | ;; This cell has spill-over. We'll momentarily pretend the following cell |
2133 | ;; has a `t' in it. | |
7ed9159a JY |
2134 | (eval `(let ((,(ses-cell-symbol row (1+ col)) t)) |
2135 | (ses-print-cell row col))) | |
2bb63e81 | 2136 | ;; Now remove the *skip*. ses-print-cell is always nil here. |
7ed9159a JY |
2137 | (ses-set-cell row (1+ col) 'value nil) |
2138 | (1value (ses-print-cell row (1+ col)))))) | |
2139 | ||
2140 | (defun ses-reconstruct-all () | |
2141 | "Reconstruct buffer based on cell data stored in Emacs variables." | |
2142 | (interactive "*") | |
2143 | (ses-begin-change) | |
2144 | ;;Reconstruct reference lists. | |
58cf70d3 | 2145 | (let (x yrow ycol) |
7ed9159a | 2146 | ;;Delete old reference lists |
7c018923 | 2147 | (dotimes-with-progress-reporter |
2bb63e81 | 2148 | (row ses--numrows) "Deleting references..." |
94be2532 | 2149 | (dotimes (col ses--numcols) |
7ed9159a JY |
2150 | (ses-set-cell row col 'references nil))) |
2151 | ;;Create new reference lists | |
7c018923 | 2152 | (dotimes-with-progress-reporter |
2bb63e81 | 2153 | (row ses--numrows) "Computing references..." |
94be2532 | 2154 | (dotimes (col ses--numcols) |
7ed9159a JY |
2155 | (dolist (ref (ses-formula-references (ses-cell-formula row col))) |
2156 | (setq x (ses-sym-rowcol ref) | |
2157 | yrow (car x) | |
2158 | ycol (cdr x)) | |
2159 | (ses-set-cell yrow ycol 'references | |
2160 | (cons (ses-cell-symbol row col) | |
2161 | (ses-cell-references yrow ycol))))))) | |
2bb63e81 | 2162 | ;; Delete everything and reconstruct basic data area. |
bd93e3e1 | 2163 | (ses-widen) |
7ed9159a JY |
2164 | (let ((inhibit-read-only t)) |
2165 | (goto-char (point-max)) | |
58cf70d3 | 2166 | (if (search-backward ";; Local Variables:\n" nil t) |
94be2532 | 2167 | (delete-region (point-min) (point)) |
2bb63e81 VB |
2168 | ;; Buffer is quite screwed up --- can't even save the user-specified |
2169 | ;; locals. | |
94be2532 | 2170 | (delete-region (point-min) (point-max)) |
7ed9159a | 2171 | (insert ses-initial-file-trailer) |
94be2532 | 2172 | (goto-char (point-min))) |
2bb63e81 | 2173 | ;; Create a blank display area. |
94be2532 JY |
2174 | (dotimes (row ses--numrows) |
2175 | (insert ses--blank-line)) | |
7ed9159a | 2176 | (insert ses-print-data-boundary) |
ddd1c214 JY |
2177 | (backward-char (1- (length ses-print-data-boundary))) |
2178 | (setq ses--data-marker (point-marker)) | |
2179 | (forward-char (1- (length ses-print-data-boundary))) | |
2bb63e81 | 2180 | ;; Placeholders for cell data. |
94be2532 | 2181 | (insert (make-string (* ses--numrows (1+ ses--numcols)) ?\n)) |
2bb63e81 | 2182 | ;; Placeholders for col-widths, col-printers, default-printer, header-row. |
7ed9159a | 2183 | (insert "\n\n\n\n") |
ddd1c214 JY |
2184 | (insert ses-initial-global-parameters) |
2185 | (backward-char (1- (length ses-initial-global-parameters))) | |
2186 | (setq ses--params-marker (point-marker)) | |
2187 | (forward-char (1- (length ses-initial-global-parameters)))) | |
94be2532 JY |
2188 | (ses-set-parameter 'ses--col-widths ses--col-widths) |
2189 | (ses-set-parameter 'ses--col-printers ses--col-printers) | |
2190 | (ses-set-parameter 'ses--default-printer ses--default-printer) | |
2191 | (ses-set-parameter 'ses--header-row ses--header-row) | |
2192 | (ses-set-parameter 'ses--numrows ses--numrows) | |
2193 | (ses-set-parameter 'ses--numcols ses--numcols) | |
7ed9159a JY |
2194 | ;;Keep our old narrowing |
2195 | (ses-setup) | |
2196 | (ses-recalculate-all) | |
94be2532 | 2197 | (goto-char (point-min))) |
7ed9159a JY |
2198 | |
2199 | ||
58cf70d3 SM |
2200 | ;;---------------------------------------------------------------------------- |
2201 | ;; Input of cell formulas | |
2202 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
2203 | |
2204 | (defun ses-edit-cell (row col newval) | |
2205 | "Display current cell contents in minibuffer, for editing. Returns nil if | |
2206 | cell formula was unsafe and user declined confirmation." | |
2207 | (interactive | |
2208 | (progn | |
2209 | (barf-if-buffer-read-only) | |
2210 | (ses-check-curcell) | |
94be2532 | 2211 | (let* ((rowcol (ses-sym-rowcol ses--curcell)) |
7ed9159a JY |
2212 | (row (car rowcol)) |
2213 | (col (cdr rowcol)) | |
2214 | (formula (ses-cell-formula row col)) | |
2215 | initial) | |
2216 | (if (eq (car-safe formula) 'ses-safe-formula) | |
2217 | (setq formula (cadr formula))) | |
2218 | (if (eq (car-safe formula) 'quote) | |
2219 | (setq initial (format "'%S" (cadr formula))) | |
2220 | (setq initial (prin1-to-string formula))) | |
2221 | (if (stringp formula) | |
2bb63e81 | 2222 | ;; Position cursor inside close-quote. |
7ed9159a JY |
2223 | (setq initial (cons initial (length initial)))) |
2224 | (list row col | |
94be2532 | 2225 | (read-from-minibuffer (format "Cell %s: " ses--curcell) |
7ed9159a JY |
2226 | initial |
2227 | ses-mode-edit-map | |
2bb63e81 | 2228 | t ; Convert to Lisp object. |
7ed9159a JY |
2229 | 'ses-read-cell-history))))) |
2230 | (when (ses-warn-unsafe newval 'unsafep) | |
2231 | (ses-begin-change) | |
2232 | (ses-cell-set-formula row col newval) | |
2233 | t)) | |
2234 | ||
2235 | (defun ses-read-cell (row col newval) | |
2236 | "Self-insert for initial character of cell function." | |
2237 | (interactive | |
1e3b6bec SM |
2238 | (let* ((initial (this-command-keys)) |
2239 | (rowcol (progn (ses-check-curcell) (ses-sym-rowcol ses--curcell))) | |
2240 | (curval (ses-cell-formula (car rowcol) (cdr rowcol)))) | |
7ed9159a | 2241 | (barf-if-buffer-read-only) |
7ed9159a JY |
2242 | (list (car rowcol) |
2243 | (cdr rowcol) | |
1e3b6bec SM |
2244 | (read-from-minibuffer |
2245 | (format "Cell %s: " ses--curcell) | |
2246 | (cons (if (equal initial "\"") "\"\"" | |
2247 | (if (equal initial "(") "()" initial)) 2) | |
2248 | ses-mode-edit-map | |
2bb63e81 | 2249 | t ; Convert to Lisp object. |
1e3b6bec | 2250 | 'ses-read-cell-history |
bd93e3e1 JY |
2251 | (prin1-to-string (if (eq (car-safe curval) 'ses-safe-formula) |
2252 | (cadr curval) | |
2253 | curval)))))) | |
7ed9159a | 2254 | (when (ses-edit-cell row col newval) |
2bb63e81 | 2255 | (ses-command-hook) ; Update cell widths before movement. |
7ed9159a JY |
2256 | (dolist (x ses-after-entry-functions) |
2257 | (funcall x 1)))) | |
2258 | ||
2259 | (defun ses-read-symbol (row col symb) | |
2260 | "Self-insert for a symbol as a cell formula. The set of all symbols that | |
2261 | have been used as formulas in this spreadsheet is available for completions." | |
2262 | (interactive | |
94be2532 | 2263 | (let ((rowcol (progn (ses-check-curcell) (ses-sym-rowcol ses--curcell))) |
7ed9159a JY |
2264 | newval) |
2265 | (barf-if-buffer-read-only) | |
94be2532 JY |
2266 | (setq newval (completing-read (format "Cell %s ': " ses--curcell) |
2267 | ses--symbolic-formulas)) | |
7ed9159a JY |
2268 | (list (car rowcol) |
2269 | (cdr rowcol) | |
2270 | (if (string= newval "") | |
2bb63e81 | 2271 | nil ; Don't create zero-length symbols! |
7ed9159a JY |
2272 | (list 'quote (intern newval)))))) |
2273 | (when (ses-edit-cell row col symb) | |
2bb63e81 | 2274 | (ses-command-hook) ; Update cell widths before movement. |
7ed9159a JY |
2275 | (dolist (x ses-after-entry-functions) |
2276 | (funcall x 1)))) | |
2277 | ||
2278 | (defun ses-clear-cell-forward (count) | |
2279 | "Delete formula and printer for current cell and then move to next cell. | |
2280 | With prefix, deletes several cells." | |
2281 | (interactive "*p") | |
2282 | (if (< count 0) | |
2283 | (1value (ses-clear-cell-backward (- count))) | |
2284 | (ses-check-curcell) | |
2285 | (ses-begin-change) | |
2286 | (dotimes (x count) | |
2287 | (ses-set-curcell) | |
94be2532 | 2288 | (let ((rowcol (ses-sym-rowcol ses--curcell))) |
7ed9159a JY |
2289 | (or rowcol (signal 'end-of-buffer nil)) |
2290 | (ses-clear-cell (car rowcol) (cdr rowcol))) | |
2291 | (forward-char 1)))) | |
2292 | ||
2293 | (defun ses-clear-cell-backward (count) | |
2294 | "Move to previous cell and then delete it. With prefix, deletes several | |
2295 | cells." | |
2296 | (interactive "*p") | |
2297 | (if (< count 0) | |
2298 | (1value (ses-clear-cell-forward (- count))) | |
2299 | (ses-check-curcell 'end) | |
2300 | (ses-begin-change) | |
2301 | (dotimes (x count) | |
2bb63e81 | 2302 | (backward-char 1) ; Will signal 'beginning-of-buffer if appropriate. |
7ed9159a | 2303 | (ses-set-curcell) |
94be2532 | 2304 | (let ((rowcol (ses-sym-rowcol ses--curcell))) |
7ed9159a JY |
2305 | (ses-clear-cell (car rowcol) (cdr rowcol)))))) |
2306 | ||
2307 | ||
58cf70d3 SM |
2308 | ;;---------------------------------------------------------------------------- |
2309 | ;; Input of cell-printer functions | |
2310 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
2311 | |
2312 | (defun ses-read-printer (prompt default) | |
2313 | "Common code for `ses-read-cell-printer', `ses-read-column-printer', and `ses-read-default-printer'. | |
4bdf2ad2 | 2314 | PROMPT should end with \": \". Result is t if operation was canceled." |
7ed9159a JY |
2315 | (barf-if-buffer-read-only) |
2316 | (if (eq default t) | |
2317 | (setq default "") | |
2318 | (setq prompt (format "%s [currently %S]: " | |
2319 | (substring prompt 0 -2) | |
2320 | default))) | |
2321 | (let ((new (read-from-minibuffer prompt | |
2bb63e81 | 2322 | nil ; Initial contents. |
7ed9159a | 2323 | ses-mode-edit-map |
2bb63e81 | 2324 | t ; Evaluate the result. |
7ed9159a JY |
2325 | 'ses-read-printer-history |
2326 | (prin1-to-string default)))) | |
2327 | (if (equal new default) | |
2bb63e81 | 2328 | ;; User changed mind, decided not to change printer. |
7ed9159a JY |
2329 | (setq new t) |
2330 | (ses-printer-validate new) | |
2331 | (or (not new) | |
2332 | (stringp new) | |
2333 | (stringp (car-safe new)) | |
2334 | (ses-warn-unsafe new 'unsafep-function) | |
2335 | (setq new t))) | |
2336 | new)) | |
2337 | ||
2338 | (defun ses-read-cell-printer (newval) | |
2339 | "Set the printer function for the current cell or range. | |
2340 | ||
2341 | A printer function is either a string (a format control-string with one | |
2342 | %-sequence -- result from format will be right-justified), or a list of one | |
2343 | string (result from format will be left-justified), or a lambda-expression of | |
2344 | one argument, or a symbol that names a function of one argument. In the | |
2345 | latter two cases, the function's result should be either a string (will be | |
2346 | right-justified) or a list of one string (will be left-justified)." | |
2347 | (interactive | |
2348 | (let ((default t) | |
58cf70d3 | 2349 | x) |
7ed9159a JY |
2350 | (ses-check-curcell 'range) |
2351 | ;;Default is none if not all cells in range have same printer | |
2352 | (catch 'ses-read-cell-printer | |
94be2532 | 2353 | (ses-dorange ses--curcell |
7ed9159a JY |
2354 | (setq x (ses-cell-printer row col)) |
2355 | (if (eq (car-safe x) 'ses-safe-printer) | |
2356 | (setq x (cadr x))) | |
2357 | (if (eq default t) | |
2358 | (setq default x) | |
2359 | (unless (equal default x) | |
2360 | ;;Range contains differing printer functions | |
2361 | (setq default t) | |
2362 | (throw 'ses-read-cell-printer t))))) | |
94be2532 JY |
2363 | (list (ses-read-printer (format "Cell %S printer: " ses--curcell) |
2364 | default)))) | |
7ed9159a JY |
2365 | (unless (eq newval t) |
2366 | (ses-begin-change) | |
94be2532 | 2367 | (ses-dorange ses--curcell |
7ed9159a JY |
2368 | (ses-set-cell row col 'printer newval) |
2369 | (ses-print-cell row col)))) | |
2370 | ||
2371 | (defun ses-read-column-printer (col newval) | |
4bdf2ad2 VB |
2372 | "Set the printer function for the current column. |
2373 | See `ses-read-cell-printer' for input forms." | |
7ed9159a | 2374 | (interactive |
94be2532 | 2375 | (let ((col (cdr (ses-sym-rowcol ses--curcell)))) |
7ed9159a JY |
2376 | (ses-check-curcell) |
2377 | (list col (ses-read-printer (format "Column %s printer: " | |
2378 | (ses-column-letter col)) | |
2379 | (ses-col-printer col))))) | |
2380 | ||
2381 | (unless (eq newval t) | |
2382 | (ses-begin-change) | |
94be2532 | 2383 | (ses-set-parameter 'ses--col-printers newval col) |
7ed9159a | 2384 | (save-excursion |
94be2532 | 2385 | (dotimes (row ses--numrows) |
7ed9159a JY |
2386 | (ses-print-cell row col))))) |
2387 | ||
2388 | (defun ses-read-default-printer (newval) | |
4bdf2ad2 VB |
2389 | "Set the default printer function for cells that have no other. |
2390 | See `ses-read-cell-printer' for input forms." | |
7ed9159a | 2391 | (interactive |
94be2532 | 2392 | (list (ses-read-printer "Default printer: " ses--default-printer))) |
7ed9159a JY |
2393 | (unless (eq newval t) |
2394 | (ses-begin-change) | |
94be2532 | 2395 | (ses-set-parameter 'ses--default-printer newval) |
7ed9159a JY |
2396 | (ses-reprint-all t))) |
2397 | ||
2398 | ||
58cf70d3 SM |
2399 | ;;---------------------------------------------------------------------------- |
2400 | ;; Spreadsheet size adjustments | |
2401 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
2402 | |
2403 | (defun ses-insert-row (count) | |
4bdf2ad2 VB |
2404 | "Insert a new row before the current one. |
2405 | With prefix, insert COUNT rows before current one." | |
7ed9159a JY |
2406 | (interactive "*p") |
2407 | (ses-check-curcell 'end) | |
2408 | (or (> count 0) (signal 'args-out-of-range nil)) | |
2409 | (ses-begin-change) | |
2410 | (let ((inhibit-quit t) | |
2411 | (inhibit-read-only t) | |
94be2532 | 2412 | (row (or (car (ses-sym-rowcol ses--curcell)) ses--numrows)) |
7ed9159a JY |
2413 | newrow) |
2414 | ;;Create a new set of cell-variables | |
94be2532 JY |
2415 | (ses-create-cell-variable-range ses--numrows (+ ses--numrows count -1) |
2416 | 0 (1- ses--numcols)) | |
2417 | (ses-set-parameter 'ses--numrows (+ ses--numrows count)) | |
7ed9159a JY |
2418 | ;;Insert each row |
2419 | (ses-goto-print row 0) | |
7c018923 | 2420 | (dotimes-with-progress-reporter (x count) "Inserting row..." |
7ed9159a JY |
2421 | ;;Create a row of empty cells. The `symbol' fields will be set by |
2422 | ;;the call to ses-relocate-all. | |
94be2532 JY |
2423 | (setq newrow (make-vector ses--numcols nil)) |
2424 | (dotimes (col ses--numcols) | |
58cf70d3 | 2425 | (aset newrow col (ses-make-cell))) |
94be2532 | 2426 | (setq ses--cells (ses-vector-insert ses--cells row newrow)) |
63f3351c | 2427 | (push `(apply ses-vector-delete ses--cells ,row 1) buffer-undo-list) |
94be2532 | 2428 | (insert ses--blank-line)) |
7ed9159a JY |
2429 | ;;Insert empty lines in cell data area (will be replaced by |
2430 | ;;ses-relocate-all) | |
2431 | (ses-goto-data row 0) | |
94be2532 | 2432 | (insert (make-string (* (1+ ses--numcols) count) ?\n)) |
7ed9159a JY |
2433 | (ses-relocate-all row 0 count 0) |
2434 | ;;If any cell printers insert constant text, insert that text | |
2435 | ;;into the line. | |
94be2532 JY |
2436 | (let ((cols (mapconcat #'ses-call-printer ses--col-printers nil)) |
2437 | (global (ses-call-printer ses--default-printer))) | |
7ed9159a JY |
2438 | (if (or (> (length cols) 0) (> (length global) 0)) |
2439 | (dotimes (x count) | |
94be2532 | 2440 | (dotimes (col ses--numcols) |
7ed9159a JY |
2441 | ;;These cells are always nil, only constant formatting printed |
2442 | (1value (ses-print-cell (+ x row) col)))))) | |
94be2532 | 2443 | (when (> ses--header-row row) |
7ed9159a | 2444 | ;;Inserting before header |
94be2532 | 2445 | (ses-set-parameter 'ses--header-row (+ ses--header-row count)) |
7ed9159a JY |
2446 | (ses-reset-header-string))) |
2447 | ;;Reconstruct text attributes | |
2448 | (ses-setup) | |
bd93e3e1 JY |
2449 | ;;Prepare for undo |
2450 | (push '(apply ses-widen) buffer-undo-list) | |
7ed9159a | 2451 | ;;Return to current cell |
94be2532 JY |
2452 | (if ses--curcell |
2453 | (ses-jump-safe ses--curcell) | |
2454 | (ses-goto-print (1- ses--numrows) 0))) | |
7ed9159a JY |
2455 | |
2456 | (defun ses-delete-row (count) | |
4bdf2ad2 VB |
2457 | "Delete the current row. |
2458 | With prefix, deletes COUNT rows starting from the current one." | |
7ed9159a JY |
2459 | (interactive "*p") |
2460 | (ses-check-curcell) | |
2461 | (or (> count 0) (signal 'args-out-of-range nil)) | |
2462 | (let ((inhibit-quit t) | |
2463 | (inhibit-read-only t) | |
58cf70d3 | 2464 | (row (car (ses-sym-rowcol ses--curcell)))) |
94be2532 | 2465 | (setq count (min count (- ses--numrows row))) |
7ed9159a | 2466 | (ses-begin-change) |
94be2532 | 2467 | (ses-set-parameter 'ses--numrows (- ses--numrows count)) |
7ed9159a JY |
2468 | ;;Delete lines from print area |
2469 | (ses-goto-print row 0) | |
2470 | (ses-delete-line count) | |
2471 | ;;Delete lines from cell data area | |
2472 | (ses-goto-data row 0) | |
94be2532 | 2473 | (ses-delete-line (* count (1+ ses--numcols))) |
7ed9159a | 2474 | ;;Relocate variables and formulas |
94be2532 | 2475 | (ses-set-with-undo 'ses--cells (ses-vector-delete ses--cells row count)) |
7ed9159a | 2476 | (ses-relocate-all row 0 (- count) 0) |
94be2532 JY |
2477 | (ses-destroy-cell-variable-range ses--numrows (+ ses--numrows count -1) |
2478 | 0 (1- ses--numcols)) | |
2479 | (when (> ses--header-row row) | |
2480 | (if (<= ses--header-row (+ row count)) | |
7ed9159a | 2481 | ;;Deleting the header row |
94be2532 JY |
2482 | (ses-set-parameter 'ses--header-row 0) |
2483 | (ses-set-parameter 'ses--header-row (- ses--header-row count))) | |
7ed9159a JY |
2484 | (ses-reset-header-string))) |
2485 | ;;Reconstruct attributes | |
2486 | (ses-setup) | |
bd93e3e1 JY |
2487 | ;;Prepare for undo |
2488 | (push '(apply ses-widen) buffer-undo-list) | |
94be2532 | 2489 | (ses-jump-safe ses--curcell)) |
7ed9159a JY |
2490 | |
2491 | (defun ses-insert-column (count &optional col width printer) | |
58cf70d3 SM |
2492 | "Insert a new column before COL (default is the current one). |
2493 | With prefix, insert COUNT columns before current one. | |
2494 | If COL is specified, the new column(s) get the specified WIDTH and PRINTER | |
2495 | \(otherwise they're taken from the current column)." | |
7ed9159a JY |
2496 | (interactive "*p") |
2497 | (ses-check-curcell) | |
2498 | (or (> count 0) (signal 'args-out-of-range nil)) | |
2499 | (or col | |
94be2532 | 2500 | (setq col (cdr (ses-sym-rowcol ses--curcell)) |
7ed9159a JY |
2501 | width (ses-col-width col) |
2502 | printer (ses-col-printer col))) | |
2503 | (ses-begin-change) | |
2504 | (let ((inhibit-quit t) | |
2505 | (inhibit-read-only t) | |
94be2532 JY |
2506 | (widths ses--col-widths) |
2507 | (printers ses--col-printers) | |
7ed9159a JY |
2508 | has-skip) |
2509 | ;;Create a new set of cell-variables | |
94be2532 JY |
2510 | (ses-create-cell-variable-range 0 (1- ses--numrows) |
2511 | ses--numcols (+ ses--numcols count -1)) | |
7ed9159a | 2512 | ;;Insert each column. |
7c018923 | 2513 | (dotimes-with-progress-reporter (x count) "Inserting column..." |
7ed9159a JY |
2514 | ;;Create a column of empty cells. The `symbol' fields will be set by |
2515 | ;;the call to ses-relocate-all. | |
2516 | (ses-adjust-print-width col (1+ width)) | |
94be2532 JY |
2517 | (ses-set-parameter 'ses--numcols (1+ ses--numcols)) |
2518 | (dotimes (row ses--numrows) | |
2519 | (and (< (1+ col) ses--numcols) (eq (ses-cell-value row col) '*skip*) | |
7ed9159a JY |
2520 | ;;Inserting in the middle of a spill-over |
2521 | (setq has-skip t)) | |
94be2532 JY |
2522 | (ses-aset-with-undo ses--cells row |
2523 | (ses-vector-insert (aref ses--cells row) | |
58cf70d3 | 2524 | col (ses-make-cell))) |
7ed9159a JY |
2525 | ;;Insert empty lines in cell data area (will be replaced by |
2526 | ;;ses-relocate-all) | |
2527 | (ses-goto-data row col) | |
2528 | (insert ?\n)) | |
2bb63e81 | 2529 | ;; Insert column width and printer. |
7ed9159a JY |
2530 | (setq widths (ses-vector-insert widths col width) |
2531 | printers (ses-vector-insert printers col printer))) | |
94be2532 JY |
2532 | (ses-set-parameter 'ses--col-widths widths) |
2533 | (ses-set-parameter 'ses--col-printers printers) | |
7ed9159a JY |
2534 | (ses-reset-header-string) |
2535 | (ses-relocate-all 0 col 0 count) | |
2536 | (if has-skip | |
2537 | (ses-reprint-all t) | |
2538 | (when (or (> (length (ses-call-printer printer)) 0) | |
94be2532 | 2539 | (> (length (ses-call-printer ses--default-printer)) 0)) |
2bb63e81 VB |
2540 | ;; Either column printer or global printer inserts some constant text. |
2541 | ;; Reprint the new columns to insert that text. | |
94be2532 | 2542 | (dotimes (x ses--numrows) |
7ed9159a | 2543 | (dotimes (y count) |
2bb63e81 | 2544 | ;; Always nil here --- this is a blank column. |
7ed9159a JY |
2545 | (1value (ses-print-cell-new-width x (+ y col)))))) |
2546 | (ses-setup))) | |
94be2532 | 2547 | (ses-jump-safe ses--curcell)) |
7ed9159a JY |
2548 | |
2549 | (defun ses-delete-column (count) | |
4bdf2ad2 VB |
2550 | "Delete the current column. |
2551 | With prefix, deletes COUNT columns starting from the current one." | |
7ed9159a JY |
2552 | (interactive "*p") |
2553 | (ses-check-curcell) | |
2554 | (or (> count 0) (signal 'args-out-of-range nil)) | |
2555 | (let ((inhibit-quit t) | |
2556 | (inhibit-read-only t) | |
94be2532 | 2557 | (rowcol (ses-sym-rowcol ses--curcell)) |
7ed9159a | 2558 | (width 0) |
58cf70d3 | 2559 | col origrow has-skip) |
7ed9159a JY |
2560 | (setq origrow (car rowcol) |
2561 | col (cdr rowcol) | |
94be2532 JY |
2562 | count (min count (- ses--numcols col))) |
2563 | (if (= count ses--numcols) | |
7ed9159a JY |
2564 | (error "Can't delete all columns!")) |
2565 | ;;Determine width of column(s) being deleted | |
2566 | (dotimes (x count) | |
2567 | (setq width (+ width (ses-col-width (+ col x)) 1))) | |
2568 | (ses-begin-change) | |
94be2532 | 2569 | (ses-set-parameter 'ses--numcols (- ses--numcols count)) |
7ed9159a | 2570 | (ses-adjust-print-width col (- width)) |
7c018923 | 2571 | (dotimes-with-progress-reporter (row ses--numrows) "Deleting column..." |
7ed9159a JY |
2572 | ;;Delete lines from cell data area |
2573 | (ses-goto-data row col) | |
2574 | (ses-delete-line count) | |
2575 | ;;Delete cells. Check if deletion area begins or ends with a skip. | |
2576 | (if (or (eq (ses-cell-value row col) '*skip*) | |
94be2532 | 2577 | (and (< col ses--numcols) |
7ed9159a JY |
2578 | (eq (ses-cell-value row (+ col count)) '*skip*))) |
2579 | (setq has-skip t)) | |
94be2532 JY |
2580 | (ses-aset-with-undo ses--cells row |
2581 | (ses-vector-delete (aref ses--cells row) col count))) | |
7ed9159a | 2582 | ;;Update globals |
94be2532 JY |
2583 | (ses-set-parameter 'ses--col-widths |
2584 | (ses-vector-delete ses--col-widths col count)) | |
2585 | (ses-set-parameter 'ses--col-printers | |
2586 | (ses-vector-delete ses--col-printers col count)) | |
7ed9159a JY |
2587 | (ses-reset-header-string) |
2588 | ;;Relocate variables and formulas | |
2589 | (ses-relocate-all 0 col 0 (- count)) | |
94be2532 JY |
2590 | (ses-destroy-cell-variable-range 0 (1- ses--numrows) |
2591 | ses--numcols (+ ses--numcols count -1)) | |
7ed9159a JY |
2592 | (if has-skip |
2593 | (ses-reprint-all t) | |
2594 | (ses-setup)) | |
94be2532 | 2595 | (if (>= col ses--numcols) |
7ed9159a JY |
2596 | (setq col (1- col))) |
2597 | (ses-goto-print origrow col))) | |
2598 | ||
2599 | (defun ses-forward-or-insert (&optional count) | |
2600 | "Move to next cell in row, or inserts a new cell if already in last one, or | |
2601 | inserts a new row if at bottom of print area. Repeat COUNT times." | |
2602 | (interactive "p") | |
2603 | (ses-check-curcell 'end) | |
2bb63e81 | 2604 | (setq deactivate-mark t) ; Doesn't combine well with ranges. |
7ed9159a JY |
2605 | (dotimes (x count) |
2606 | (ses-set-curcell) | |
94be2532 | 2607 | (if (not ses--curcell) |
2bb63e81 | 2608 | (progn ; At bottom of print area. |
7ed9159a JY |
2609 | (barf-if-buffer-read-only) |
2610 | (ses-insert-row 1)) | |
94be2532 | 2611 | (let ((col (cdr (ses-sym-rowcol ses--curcell)))) |
7ed9159a JY |
2612 | (when (/= 32 |
2613 | (char-before (next-single-property-change (point) | |
2614 | 'intangible))) | |
2bb63e81 VB |
2615 | ;; We're already in last nonskipped cell on line. Need to create a |
2616 | ;; new column. | |
7ed9159a JY |
2617 | (barf-if-buffer-read-only) |
2618 | (ses-insert-column (- count x) | |
94be2532 | 2619 | ses--numcols |
7ed9159a JY |
2620 | (ses-col-width col) |
2621 | (ses-col-printer col))))) | |
2622 | (forward-char))) | |
2623 | ||
2624 | (defun ses-append-row-jump-first-column () | |
4bdf2ad2 | 2625 | "Insert a new row after current one and jump to its first column." |
7ed9159a JY |
2626 | (interactive "*") |
2627 | (ses-check-curcell) | |
2628 | (ses-begin-change) | |
2629 | (beginning-of-line 2) | |
2630 | (ses-set-curcell) | |
2631 | (ses-insert-row 1)) | |
2632 | ||
2633 | (defun ses-set-column-width (col newwidth) | |
2634 | "Set the width of the current column." | |
2635 | (interactive | |
94be2532 | 2636 | (let ((col (cdr (progn (ses-check-curcell) (ses-sym-rowcol ses--curcell))))) |
7ed9159a JY |
2637 | (barf-if-buffer-read-only) |
2638 | (list col | |
2639 | (if current-prefix-arg | |
2640 | (prefix-numeric-value current-prefix-arg) | |
2641 | (read-from-minibuffer (format "Column %s width [currently %d]: " | |
2642 | (ses-column-letter col) | |
2643 | (ses-col-width col)) | |
2bb63e81 VB |
2644 | nil ; No initial contents. |
2645 | nil ; No override keymap. | |
2646 | t ; Convert to Lisp object. | |
2647 | nil ; No history. | |
7ed9159a | 2648 | (number-to-string |
2bb63e81 | 2649 | (ses-col-width col))))))) ; Default value. |
7ed9159a JY |
2650 | (if (< newwidth 1) |
2651 | (error "Invalid column width")) | |
2652 | (ses-begin-change) | |
2653 | (ses-reset-header-string) | |
2654 | (save-excursion | |
2655 | (let ((inhibit-quit t)) | |
2656 | (ses-adjust-print-width col (- newwidth (ses-col-width col))) | |
94be2532 JY |
2657 | (ses-set-parameter 'ses--col-widths newwidth col)) |
2658 | (dotimes (row ses--numrows) | |
7ed9159a JY |
2659 | (ses-print-cell-new-width row col)))) |
2660 | ||
2661 | ||
58cf70d3 SM |
2662 | ;;---------------------------------------------------------------------------- |
2663 | ;; Cut and paste, import and export | |
2664 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
2665 | |
2666 | (defadvice copy-region-as-kill (around ses-copy-region-as-kill | |
2667 | activate preactivate) | |
2668 | "It doesn't make sense to copy read-only or intangible attributes into the | |
2669 | kill ring. It probably doesn't make sense to copy keymap properties. | |
2670 | We'll assume copying front-sticky properties doesn't make sense, either. | |
2671 | ||
2672 | This advice also includes some SES-specific code because otherwise it's too | |
2673 | hard to override how mouse-1 works." | |
2674 | (when (> beg end) | |
2675 | (let ((temp beg)) | |
2676 | (setq beg end | |
2677 | end temp))) | |
2678 | (if (not (and (eq major-mode 'ses-mode) | |
2679 | (eq (get-text-property beg 'read-only) 'ses) | |
2680 | (eq (get-text-property (1- end) 'read-only) 'ses))) | |
2bb63e81 | 2681 | ad-do-it ; Normal copy-region-as-kill. |
4c759a32 SM |
2682 | (kill-new (ses-copy-region beg end)) |
2683 | (if transient-mark-mode | |
2684 | (setq deactivate-mark t)) | |
2685 | nil)) | |
7ed9159a JY |
2686 | |
2687 | (defun ses-copy-region (beg end) | |
2688 | "Treat the region as rectangular. Convert the intangible attributes to | |
2689 | SES attributes recording the contents of the cell as of the time of copying." | |
4eb3897c JY |
2690 | (when (= end ses--data-marker) |
2691 | ;;Avoid overflow situation | |
2692 | (setq end (1- ses--data-marker))) | |
7ed9159a JY |
2693 | (let* ((inhibit-point-motion-hooks t) |
2694 | (x (mapconcat 'ses-copy-region-helper | |
2695 | (extract-rectangle beg (1- end)) "\n"))) | |
2696 | (remove-text-properties 0 (length x) | |
2697 | '(read-only t | |
2698 | intangible t | |
2699 | keymap t | |
2700 | front-sticky t) | |
2701 | x) | |
2702 | x)) | |
2703 | ||
2704 | (defun ses-copy-region-helper (line) | |
2705 | "Converts one line (of a rectangle being extracted from a spreadsheet) to | |
2706 | external form by attaching to each print cell a 'ses attribute that records | |
2707 | the corresponding data cell." | |
2708 | (or (> (length line) 1) | |
2709 | (error "Empty range")) | |
2710 | (let ((inhibit-read-only t) | |
2711 | (pos 0) | |
2712 | mycell next sym rowcol) | |
2713 | (while pos | |
2714 | (setq sym (get-text-property pos 'intangible line) | |
2715 | next (next-single-property-change pos 'intangible line) | |
2716 | rowcol (ses-sym-rowcol sym) | |
2717 | mycell (ses-get-cell (car rowcol) (cdr rowcol))) | |
2718 | (put-text-property pos (or next (length line)) | |
2719 | 'ses | |
2720 | (list (ses-cell-symbol mycell) | |
2721 | (ses-cell-formula mycell) | |
2722 | (ses-cell-printer mycell)) | |
2723 | line) | |
2724 | (setq pos next))) | |
2725 | line) | |
2726 | ||
2727 | (defun ses-kill-override (beg end) | |
4bdf2ad2 VB |
2728 | "Generic override for any commands that kill text. |
2729 | We clear the killed cells instead of deleting them." | |
7ed9159a JY |
2730 | (interactive "r") |
2731 | (ses-check-curcell 'needrange) | |
2bb63e81 VB |
2732 | ;; For some reason, the text-read-only error is not caught by `delete-region', |
2733 | ;; so we have to use subterfuge. | |
7ed9159a JY |
2734 | (let ((buffer-read-only t)) |
2735 | (1value (condition-case x | |
2736 | (noreturn (funcall (lookup-key (current-global-map) | |
2737 | (this-command-keys)) | |
2738 | beg end)) | |
2bb63e81 VB |
2739 | (buffer-read-only nil)))) ; The expected error. |
2740 | ;; Because the buffer was marked read-only, the kill command turned itself | |
2741 | ;; into a copy. Now we clear the cells or signal the error. First we check | |
2742 | ;; whether the buffer really is read-only. | |
7ed9159a JY |
2743 | (barf-if-buffer-read-only) |
2744 | (ses-begin-change) | |
94be2532 | 2745 | (ses-dorange ses--curcell |
7ed9159a | 2746 | (ses-clear-cell row col)) |
94be2532 | 2747 | (ses-jump (car ses--curcell))) |
7ed9159a JY |
2748 | |
2749 | (defadvice yank (around ses-yank activate preactivate) | |
2750 | "In SES mode, the yanked text is inserted as cells. | |
2751 | ||
2752 | If the text contains 'ses attributes (meaning it went to the kill-ring from a | |
2753 | SES buffer), the formulas and print functions are restored for the cells. If | |
2754 | the text contains tabs, this is an insertion of tab-separated formulas. | |
2755 | Otherwise the text is inserted as the formula for the current cell. | |
2756 | ||
2757 | When inserting cells, the formulas are usually relocated to keep the same | |
2758 | relative references to neighboring cells. This is best if the formulas | |
2759 | generally refer to other cells within the yanked text. You can use the C-u | |
2760 | prefix to specify insertion without relocation, which is best when the | |
4bdf2ad2 | 2761 | formulas refer to cells outside the yanked text. |
7ed9159a JY |
2762 | |
2763 | When inserting formulas, the text is treated as a string constant if it doesn't | |
2764 | make sense as a sexp or would otherwise be considered a symbol. Use 'sym to | |
2765 | explicitly insert a symbol, or use the C-u prefix to treat all unmarked words | |
2766 | as symbols." | |
2767 | (if (not (and (eq major-mode 'ses-mode) | |
2768 | (eq (get-text-property (point) 'keymap) 'ses-mode-print-map))) | |
2bb63e81 | 2769 | ad-do-it ; Normal non-SES yank. |
7ed9159a JY |
2770 | (ses-check-curcell 'end) |
2771 | (push-mark (point)) | |
2772 | (let ((text (current-kill (cond | |
2773 | ((listp arg) 0) | |
2774 | ((eq arg '-) -1) | |
2775 | (t (1- arg)))))) | |
2776 | (or (ses-yank-cells text arg) | |
2777 | (ses-yank-tsf text arg) | |
2778 | (ses-yank-one (ses-yank-resize 1 1) | |
2779 | text | |
2780 | 0 | |
2781 | (if (memq (aref text (1- (length text))) '(?\t ?\n)) | |
2bb63e81 | 2782 | ;; Just one cell --- delete final tab or newline. |
7ed9159a JY |
2783 | (1- (length text))) |
2784 | arg))) | |
2785 | (if (consp arg) | |
2786 | (exchange-point-and-mark)))) | |
2787 | ||
2788 | (defun ses-yank-pop (arg) | |
2789 | "Replace just-yanked stretch of killed text with a different stretch. | |
4bdf2ad2 VB |
2790 | This command is allowed only immediately after a `yank' or a `yank-pop', |
2791 | when the region contains a stretch of reinserted previously-killed text. | |
2792 | We replace it with a different stretch of killed text. | |
7ed9159a JY |
2793 | Unlike standard `yank-pop', this function uses `undo' to delete the |
2794 | previous insertion." | |
2795 | (interactive "*p") | |
2796 | (or (eq last-command 'yank) | |
2797 | ;;Use noreturn here just to avoid a "poor-coverage" warning in its | |
2798 | ;;macro definition. | |
2799 | (noreturn (error "Previous command was not a yank"))) | |
2800 | (undo) | |
2801 | (ses-set-curcell) | |
2802 | (yank (1+ (or arg 1))) | |
2803 | (setq this-command 'yank)) | |
2804 | ||
2805 | (defun ses-yank-cells (text arg) | |
4bdf2ad2 | 2806 | "If the TEXT has a proper set of 'ses attributes, insert the text as |
7ed9159a JY |
2807 | cells, else return nil. The cells are reprinted--the supplied text is |
2808 | ignored because the column widths, default printer, etc. at yank time might | |
2809 | be different from those at kill-time. ARG is a list to indicate that | |
2810 | formulas are to be inserted without relocation." | |
2811 | (let ((first (get-text-property 0 'ses text)) | |
2812 | (last (get-text-property (1- (length text)) 'ses text))) | |
2813 | (when (and first last) ;;Otherwise not proper set of attributes | |
2814 | (setq first (ses-sym-rowcol (car first)) | |
2815 | last (ses-sym-rowcol (car last))) | |
2816 | (let* ((needrows (- (car last) (car first) -1)) | |
2817 | (needcols (- (cdr last) (cdr first) -1)) | |
2818 | (rowcol (ses-yank-resize needrows needcols)) | |
2819 | (rowincr (- (car rowcol) (car first))) | |
2820 | (colincr (- (cdr rowcol) (cdr first))) | |
2821 | (pos 0) | |
2822 | myrow mycol x) | |
7c018923 | 2823 | (dotimes-with-progress-reporter (row needrows) "Yanking..." |
7ed9159a JY |
2824 | (setq myrow (+ row (car rowcol))) |
2825 | (dotimes (col needcols) | |
2826 | (setq mycol (+ col (cdr rowcol)) | |
2827 | last (get-text-property pos 'ses text) | |
2828 | pos (next-single-property-change pos 'ses text) | |
2829 | x (ses-sym-rowcol (car last))) | |
2830 | (if (not last) | |
2bb63e81 | 2831 | ;; Newline --- all remaining cells on row are skipped. |
7ed9159a JY |
2832 | (setq x (cons (- myrow rowincr) (+ needcols colincr -1)) |
2833 | last (list nil nil nil) | |
2834 | pos (1- pos))) | |
2835 | (if (/= (car x) (- myrow rowincr)) | |
2836 | (error "Cell row error")) | |
2837 | (if (< (- mycol colincr) (cdr x)) | |
2bb63e81 | 2838 | ;; Some columns were skipped. |
7ed9159a JY |
2839 | (let ((oldcol mycol)) |
2840 | (while (< (- mycol colincr) (cdr x)) | |
2841 | (ses-clear-cell myrow mycol) | |
2842 | (setq col (1+ col) | |
2843 | mycol (1+ mycol))) | |
2bb63e81 VB |
2844 | (ses-print-cell myrow (1- oldcol)))) ;; This inserts *skip*. |
2845 | (when (car last) ; Skip this for *skip* cells. | |
7ed9159a JY |
2846 | (setq x (nth 2 last)) |
2847 | (unless (equal x (ses-cell-printer myrow mycol)) | |
2848 | (or (not x) | |
2849 | (stringp x) | |
2850 | (eq (car-safe x) 'ses-safe-printer) | |
2851 | (setq x `(ses-safe-printer ,x))) | |
2852 | (ses-set-cell myrow mycol 'printer x)) | |
2853 | (setq x (cadr last)) | |
2854 | (if (atom arg) | |
2855 | (setq x (ses-relocate-formula x 0 0 rowincr colincr))) | |
2856 | (or (atom x) | |
2857 | (eq (car-safe x) 'ses-safe-formula) | |
2858 | (setq x `(ses-safe-formula ,x))) | |
2859 | (ses-cell-set-formula myrow mycol x))) | |
2860 | (when pos | |
2861 | (if (get-text-property pos 'ses text) | |
2862 | (error "Missing newline between rows")) | |
2863 | (setq pos (next-single-property-change pos 'ses text)))) | |
2864 | t)))) | |
2865 | ||
2866 | (defun ses-yank-one (rowcol text from to arg) | |
2867 | "Insert the substring [FROM,TO] of TEXT as the formula for cell ROWCOL (a | |
2868 | cons of ROW and COL). Treat plain symbols as strings unless ARG is a list." | |
2869 | (let ((val (condition-case nil | |
2870 | (read-from-string text from to) | |
2871 | (error (cons nil from))))) | |
2872 | (cond | |
2873 | ((< (cdr val) (or to (length text))) | |
2bb63e81 | 2874 | ;; Invalid sexp --- leave it as a string. |
7ed9159a JY |
2875 | (setq val (substring text from to))) |
2876 | ((and (car val) (symbolp (car val))) | |
2877 | (if (consp arg) | |
2bb63e81 VB |
2878 | (setq val (list 'quote (car val))) ; Keep symbol. |
2879 | (setq val (substring text from to)))) ; Treat symbol as text. | |
7ed9159a JY |
2880 | (t |
2881 | (setq val (car val)))) | |
2882 | (let ((row (car rowcol)) | |
2883 | (col (cdr rowcol))) | |
2884 | (or (atom val) | |
2885 | (setq val `(ses-safe-formula ,val))) | |
2886 | (ses-cell-set-formula row col val)))) | |
2887 | ||
2888 | (defun ses-yank-tsf (text arg) | |
4bdf2ad2 VB |
2889 | "If TEXT contains tabs and/or newlines, treat the tabs as |
2890 | column-separators and the newlines as row-separators and insert the text as | |
7ed9159a JY |
2891 | cell formulas--else return nil. Treat plain symbols as strings unless ARG |
2892 | is a list. Ignore a final newline." | |
2893 | (if (or (not (string-match "[\t\n]" text)) | |
2894 | (= (match-end 0) (length text))) | |
2895 | ;;Not TSF format | |
2896 | nil | |
2897 | (if (/= (aref text (1- (length text))) ?\n) | |
2898 | (setq text (concat text "\n"))) | |
2899 | (let ((pos -1) | |
2900 | (spots (list -1)) | |
2901 | (cols 0) | |
2902 | (needrows 0) | |
2903 | needcols rowcol) | |
2904 | ;;Find all the tabs and newlines | |
2905 | (while (setq pos (string-match "[\t\n]" text (1+ pos))) | |
2906 | (push pos spots) | |
2907 | (setq cols (1+ cols)) | |
2908 | (when (eq (aref text pos) ?\n) | |
2909 | (if (not needcols) | |
2910 | (setq needcols cols) | |
2911 | (or (= needcols cols) | |
2912 | (error "Inconsistent row lengths"))) | |
2913 | (setq cols 0 | |
2914 | needrows (1+ needrows)))) | |
2915 | ;;Insert the formulas | |
2916 | (setq rowcol (ses-yank-resize needrows needcols)) | |
2917 | (dotimes (row needrows) | |
2918 | (dotimes (col needcols) | |
2919 | (ses-yank-one (cons (+ (car rowcol) needrows (- row) -1) | |
2920 | (+ (cdr rowcol) needcols (- col) -1)) | |
2921 | text (1+ (cadr spots)) (car spots) arg) | |
2922 | (setq spots (cdr spots)))) | |
2923 | (ses-goto-print (+ (car rowcol) needrows -1) | |
2924 | (+ (cdr rowcol) needcols -1)) | |
2925 | t))) | |
2926 | ||
2927 | (defun ses-yank-resize (needrows needcols) | |
4bdf2ad2 VB |
2928 | "If this yank will require inserting rows and/or columns, ask for |
2929 | confirmation and then insert them. Result is (row,col) for top left of yank | |
7ed9159a JY |
2930 | spot, or error signal if user requests cancel." |
2931 | (ses-begin-change) | |
94be2532 JY |
2932 | (let ((rowcol (if ses--curcell |
2933 | (ses-sym-rowcol ses--curcell) | |
2934 | (cons ses--numrows 0))) | |
7ed9159a | 2935 | rowbool colbool) |
94be2532 JY |
2936 | (setq needrows (- (+ (car rowcol) needrows) ses--numrows) |
2937 | needcols (- (+ (cdr rowcol) needcols) ses--numcols) | |
7ed9159a JY |
2938 | rowbool (> needrows 0) |
2939 | colbool (> needcols 0)) | |
2940 | (when (or rowbool colbool) | |
2941 | ;;Need to insert. Get confirm | |
ce5a3ac0 | 2942 | (or (y-or-n-p (format "Yank will insert %s%s%s. Continue? " |
7ed9159a JY |
2943 | (if rowbool (format "%d rows" needrows) "") |
2944 | (if (and rowbool colbool) " and " "") | |
2945 | (if colbool (format "%d columns" needcols) ""))) | |
2946 | (error "Cancelled")) | |
2947 | (when rowbool | |
94be2532 | 2948 | (let (ses--curcell) |
7ed9159a | 2949 | (save-excursion |
94be2532 | 2950 | (ses-goto-print ses--numrows 0) |
7ed9159a JY |
2951 | (ses-insert-row needrows)))) |
2952 | (when colbool | |
2953 | (ses-insert-column needcols | |
94be2532 JY |
2954 | ses--numcols |
2955 | (ses-col-width (1- ses--numcols)) | |
2956 | (ses-col-printer (1- ses--numcols))))) | |
7ed9159a JY |
2957 | rowcol)) |
2958 | ||
2959 | (defun ses-export-tsv (beg end) | |
2960 | "Export values from the current range, with tabs between columns and | |
2961 | newlines between rows. Result is placed in kill ring." | |
2962 | (interactive "r") | |
2963 | (ses-export-tab nil)) | |
2964 | ||
2965 | (defun ses-export-tsf (beg end) | |
2966 | "Export formulas from the current range, with tabs between columns and | |
2967 | newlines between rows. Result is placed in kill ring." | |
2968 | (interactive "r") | |
2969 | (ses-export-tab t)) | |
2970 | ||
2971 | (defun ses-export-tab (want-formulas) | |
4bdf2ad2 VB |
2972 | "Export the current range with tabs between columns and newlines between rows. |
2973 | Result is placed in kill ring. The export is values unless WANT-FORMULAS | |
2974 | is non-nil. Newlines and tabs in the export text are escaped." | |
7ed9159a JY |
2975 | (ses-check-curcell 'needrange) |
2976 | (let ((print-escape-newlines t) | |
2977 | result item) | |
94be2532 | 2978 | (ses-dorange ses--curcell |
7ed9159a JY |
2979 | (setq item (if want-formulas |
2980 | (ses-cell-formula row col) | |
2981 | (ses-cell-value row col))) | |
2982 | (if (eq (car-safe item) 'ses-safe-formula) | |
2983 | ;;Hide our deferred safety-check marker | |
2984 | (setq item (cadr item))) | |
2985 | (if (or (not item) (eq item '*skip*)) | |
2986 | (setq item "")) | |
2987 | (when (eq (car-safe item) 'quote) | |
2988 | (push "'" result) | |
2989 | (setq item (cadr item))) | |
2990 | (setq item (prin1-to-string item t)) | |
2991 | (setq item (replace-regexp-in-string "\t" "\\\\t" item)) | |
2992 | (push item result) | |
2993 | (cond | |
2994 | ((< col maxcol) | |
2995 | (push "\t" result)) | |
2996 | ((< row maxrow) | |
2997 | (push "\n" result)))) | |
2998 | (setq result (apply 'concat (nreverse result))) | |
2999 | (kill-new result))) | |
3000 | ||
3001 | ||
58cf70d3 SM |
3002 | ;;---------------------------------------------------------------------------- |
3003 | ;; Other user commands | |
3004 | ;;---------------------------------------------------------------------------- | |
7ed9159a | 3005 | |
94be2532 JY |
3006 | (defun ses-unset-header-row () |
3007 | "Select the default header row." | |
3008 | (interactive) | |
3009 | (ses-set-header-row 0)) | |
3010 | ||
3011 | (defun ses-set-header-row (row) | |
3012 | "Set the ROW to display in the header-line. | |
3013 | With a numerical prefix arg, use that row. | |
3014 | With no prefix arg, use the current row. | |
3015 | With a \\[universal-argument] prefix arg, prompt the user. | |
3016 | The top row is row 1. Selecting row 0 displays the default header row." | |
3017 | (interactive | |
3018 | (list (if (numberp current-prefix-arg) current-prefix-arg | |
3019 | (let ((currow (1+ (car (ses-sym-rowcol ses--curcell))))) | |
3020 | (if current-prefix-arg | |
e9c8c8e7 | 3021 | (read-number "Header row: " currow) |
94be2532 JY |
3022 | currow))))) |
3023 | (if (or (< row 0) (> row ses--numrows)) | |
7ed9159a JY |
3024 | (error "Invalid header-row")) |
3025 | (ses-begin-change) | |
bd93e3e1 JY |
3026 | (let ((oldval ses--header-row)) |
3027 | (let (buffer-undo-list) | |
3028 | (ses-set-parameter 'ses--header-row row)) | |
3029 | (push `(apply ses-set-header-row ,oldval) buffer-undo-list)) | |
7ed9159a JY |
3030 | (ses-reset-header-string)) |
3031 | ||
3032 | (defun ses-mark-row () | |
4bdf2ad2 | 3033 | "Mark the entirety of current row as a range." |
7ed9159a JY |
3034 | (interactive) |
3035 | (ses-check-curcell 'range) | |
94be2532 | 3036 | (let ((row (car (ses-sym-rowcol (or (car-safe ses--curcell) ses--curcell))))) |
7ed9159a JY |
3037 | (push-mark (point)) |
3038 | (ses-goto-print (1+ row) 0) | |
3039 | (push-mark (point) nil t) | |
3040 | (ses-goto-print row 0))) | |
3041 | ||
3042 | (defun ses-mark-column () | |
4bdf2ad2 | 3043 | "Mark the entirety of current column as a range." |
7ed9159a JY |
3044 | (interactive) |
3045 | (ses-check-curcell 'range) | |
94be2532 | 3046 | (let ((col (cdr (ses-sym-rowcol (or (car-safe ses--curcell) ses--curcell)))) |
7ed9159a JY |
3047 | (row 0)) |
3048 | (push-mark (point)) | |
94be2532 | 3049 | (ses-goto-print (1- ses--numrows) col) |
7ed9159a JY |
3050 | (forward-char 1) |
3051 | (push-mark (point) nil t) | |
3052 | (while (eq '*skip* (ses-cell-value row col)) | |
3053 | ;;Skip over initial cells in column that can't be selected | |
3054 | (setq row (1+ row))) | |
3055 | (ses-goto-print row col))) | |
3056 | ||
3057 | (defun ses-end-of-line () | |
3058 | "Move point to last cell on line." | |
3059 | (interactive) | |
3060 | (ses-check-curcell 'end 'range) | |
2bb63e81 VB |
3061 | (when ses--curcell ; Otherwise we're at the bottom row, which is empty |
3062 | ; anyway. | |
94be2532 | 3063 | (let ((col (1- ses--numcols)) |
7ed9159a | 3064 | row rowcol) |
94be2532 | 3065 | (if (symbolp ses--curcell) |
2bb63e81 | 3066 | ;; Single cell. |
94be2532 | 3067 | (setq row (car (ses-sym-rowcol ses--curcell))) |
2bb63e81 | 3068 | ;; Range --- use whichever end of the range the point is at. |
7ed9159a | 3069 | (setq rowcol (ses-sym-rowcol (if (< (point) (mark)) |
94be2532 JY |
3070 | (car ses--curcell) |
3071 | (cdr ses--curcell)))) | |
2bb63e81 VB |
3072 | ;; If range already includes the last cell in a row, point is actually |
3073 | ;; in the following row. | |
7ed9159a JY |
3074 | (if (<= (cdr rowcol) (1- col)) |
3075 | (setq row (car rowcol)) | |
3076 | (setq row (1+ (car rowcol))) | |
94be2532 | 3077 | (if (= row ses--numrows) |
7ed9159a JY |
3078 | ;;Already at end - can't go anywhere |
3079 | (setq col 0)))) | |
2bb63e81 | 3080 | (when (< row ses--numrows) ; Otherwise it's a range that includes last cell. |
7ed9159a | 3081 | (while (eq (ses-cell-value row col) '*skip*) |
2bb63e81 | 3082 | ;; Back to beginning of multi-column cell. |
7ed9159a JY |
3083 | (setq col (1- col))) |
3084 | (ses-goto-print row col))))) | |
3085 | ||
3086 | (defun ses-renarrow-buffer () | |
4bdf2ad2 VB |
3087 | "Narrow the buffer so only the print area is visible. |
3088 | Use after \\[widen]." | |
7ed9159a | 3089 | (interactive) |
94be2532 | 3090 | (setq ses--deferred-narrow t)) |
7ed9159a JY |
3091 | |
3092 | (defun ses-sort-column (sorter &optional reverse) | |
4bdf2ad2 VB |
3093 | "Sort the range by a specified column. |
3094 | With prefix, sorts in REVERSE order." | |
7ed9159a JY |
3095 | (interactive "*sSort column: \nP") |
3096 | (ses-check-curcell 'needrange) | |
94be2532 JY |
3097 | (let ((min (ses-sym-rowcol (car ses--curcell))) |
3098 | (max (ses-sym-rowcol (cdr ses--curcell)))) | |
7ed9159a JY |
3099 | (let ((minrow (car min)) |
3100 | (mincol (cdr min)) | |
3101 | (maxrow (car max)) | |
3102 | (maxcol (cdr max)) | |
3103 | keys extracts end) | |
3104 | (setq sorter (cdr (ses-sym-rowcol (intern (concat sorter "1"))))) | |
3105 | (or (and sorter (>= sorter mincol) (<= sorter maxcol)) | |
3106 | (error "Invalid sort column")) | |
3107 | ;;Get key columns and sort them | |
3108 | (dotimes (x (- maxrow minrow -1)) | |
3109 | (ses-goto-print (+ minrow x) sorter) | |
3110 | (setq end (next-single-property-change (point) 'intangible)) | |
3111 | (push (cons (buffer-substring-no-properties (point) end) | |
3112 | (+ minrow x)) | |
3113 | keys)) | |
3114 | (setq keys (sort keys #'(lambda (x y) (string< (car x) (car y))))) | |
3115 | ;;Extract the lines in reverse sorted order | |
3116 | (or reverse | |
3117 | (setq keys (nreverse keys))) | |
3118 | (dolist (x keys) | |
3119 | (ses-goto-print (cdr x) (1+ maxcol)) | |
3120 | (setq end (point)) | |
3121 | (ses-goto-print (cdr x) mincol) | |
3122 | (push (ses-copy-region (point) end) extracts)) | |
3123 | (deactivate-mark) | |
3124 | ;;Paste the lines sequentially | |
3125 | (dotimes (x (- maxrow minrow -1)) | |
3126 | (ses-goto-print (+ minrow x) mincol) | |
3127 | (ses-set-curcell) | |
3128 | (ses-yank-cells (pop extracts) nil))))) | |
3129 | ||
3130 | (defun ses-sort-column-click (event reverse) | |
94be2532 | 3131 | "Mouse version of `ses-sort-column'." |
7ed9159a JY |
3132 | (interactive "*e\nP") |
3133 | (setq event (event-end event)) | |
3134 | (select-window (posn-window event)) | |
2bb63e81 | 3135 | (setq event (car (posn-col-row event))) ; Click column. |
7ed9159a | 3136 | (let ((col 0)) |
94be2532 | 3137 | (while (and (< col ses--numcols) (> event (ses-col-width col))) |
7ed9159a JY |
3138 | (setq event (- event (ses-col-width col) 1) |
3139 | col (1+ col))) | |
94be2532 | 3140 | (if (>= col ses--numcols) |
7ed9159a JY |
3141 | (ding) |
3142 | (ses-sort-column (ses-column-letter col) reverse)))) | |
3143 | ||
3144 | (defun ses-insert-range () | |
4bdf2ad2 | 3145 | "Insert into minibuffer the list of cells currently highlighted in the |
7ed9159a JY |
3146 | spreadsheet." |
3147 | (interactive "*") | |
3148 | (let (x) | |
3149 | (with-current-buffer (window-buffer minibuffer-scroll-window) | |
2bb63e81 | 3150 | (ses-command-hook) ; For ses-coverage. |
7ed9159a | 3151 | (ses-check-curcell 'needrange) |
94be2532 JY |
3152 | (setq x (cdr (macroexpand `(ses-range ,(car ses--curcell) |
3153 | ,(cdr ses--curcell)))))) | |
7ed9159a JY |
3154 | (insert (substring (prin1-to-string (nreverse x)) 1 -1)))) |
3155 | ||
3156 | (defun ses-insert-ses-range () | |
4bdf2ad2 | 3157 | "Insert \"(ses-range x y)\" in the minibuffer to represent the currently |
7ed9159a JY |
3158 | highlighted range in the spreadsheet." |
3159 | (interactive "*") | |
3160 | (let (x) | |
3161 | (with-current-buffer (window-buffer minibuffer-scroll-window) | |
2bb63e81 | 3162 | (ses-command-hook) ; For ses-coverage. |
7ed9159a | 3163 | (ses-check-curcell 'needrange) |
94be2532 JY |
3164 | (setq x (format "(ses-range %S %S)" |
3165 | (car ses--curcell) | |
3166 | (cdr ses--curcell)))) | |
7ed9159a JY |
3167 | (insert x))) |
3168 | ||
3169 | (defun ses-insert-range-click (event) | |
3170 | "Mouse version of `ses-insert-range'." | |
3171 | (interactive "*e") | |
3172 | (mouse-set-point event) | |
3173 | (ses-insert-range)) | |
3174 | ||
3175 | (defun ses-insert-ses-range-click (event) | |
3176 | "Mouse version of `ses-insert-ses-range'." | |
3177 | (interactive "*e") | |
3178 | (mouse-set-point event) | |
3179 | (ses-insert-ses-range)) | |
3180 | ||
4bdf2ad2 VB |
3181 | (defun ses-replace-name-in-formula (formula old-name new-name) |
3182 | (let ((new-formula formula)) | |
3183 | (unless (and (consp formula) | |
3184 | (eq (car-safe formula) 'quote)) | |
3185 | (while formula | |
3186 | (let ((elt (car-safe formula))) | |
3187 | (cond | |
3188 | ((consp elt) | |
3189 | (setcar formula (ses-replace-name-in-formula elt old-name new-name))) | |
3190 | ((and (symbolp elt) | |
3191 | (eq (car-safe formula) old-name)) | |
3192 | (setcar formula new-name)))) | |
3193 | (setq formula (cdr formula)))) | |
3194 | new-formula)) | |
3195 | ||
3196 | (defun ses-rename-cell (new-name) | |
3197 | "Rename current cell." | |
3198 | (interactive "*SEnter new name: ") | |
3199 | (ses-check-curcell) | |
3200 | (or | |
3201 | (and (local-variable-p new-name) | |
3202 | (ses-sym-rowcol new-name) | |
3203 | ;; this test is needed because ses-cell property of deleted cells | |
3204 | ;; is not deleted in case of subsequent undo | |
3205 | (memq new-name ses--renamed-cell-symb-list) | |
3206 | (error "Already a cell name")) | |
3207 | (and (boundp new-name) | |
3208 | (null (yes-or-no-p (format "`%S' is already bound outside this buffer, continue? " | |
3209 | new-name))) | |
3210 | (error "Already a bound cell name"))) | |
3211 | (let* ((rowcol (ses-sym-rowcol ses--curcell)) | |
3212 | (cell (ses-get-cell (car rowcol) (cdr rowcol)))) | |
3213 | (put new-name 'ses-cell rowcol) | |
3214 | (dolist (reference (ses-cell-references (car rowcol) (cdr rowcol))) | |
3215 | (let* ((rowcol (ses-sym-rowcol reference)) | |
3216 | (cell (ses-get-cell (car rowcol) (cdr rowcol)))) | |
3217 | (ses-cell-set-formula (car rowcol) | |
3218 | (cdr rowcol) | |
3219 | (ses-replace-name-in-formula | |
3220 | (ses-cell-formula cell) | |
3221 | ses--curcell | |
3222 | new-name)))) | |
3223 | (push new-name ses--renamed-cell-symb-list) | |
3224 | (set new-name (symbol-value ses--curcell)) | |
3225 | (aset cell 0 new-name) | |
3226 | (put ses--curcell 'ses-cell nil) | |
3227 | (makunbound ses--curcell) | |
3228 | (setq ses--curcell new-name) | |
3229 | (let* ((pos (point)) | |
3230 | (inhibit-read-only t) | |
3231 | (col (current-column)) | |
3232 | (end (save-excursion | |
3233 | (move-to-column (1+ col)) | |
3234 | (if (eolp) | |
3235 | (+ pos (ses-col-width col) 1) | |
3236 | (point))))) | |
3237 | (put-text-property pos end 'intangible new-name))) ) | |
7ed9159a | 3238 | |
58cf70d3 SM |
3239 | ;;---------------------------------------------------------------------------- |
3240 | ;; Checking formulas for safety | |
3241 | ;;---------------------------------------------------------------------------- | |
7ed9159a JY |
3242 | |
3243 | (defun ses-safe-printer (printer) | |
4bdf2ad2 | 3244 | "Return PRINTER if safe, or the substitute printer `ses-unsafe' otherwise." |
7ed9159a JY |
3245 | (if (or (stringp printer) |
3246 | (stringp (car-safe printer)) | |
3247 | (not printer) | |
3248 | (ses-warn-unsafe printer 'unsafep-function)) | |
3249 | printer | |
3250 | 'ses-unsafe)) | |
3251 | ||
3252 | (defun ses-safe-formula (formula) | |
4bdf2ad2 | 3253 | "Return FORMULA if safe, or the substitute formula *unsafe* otherwise." |
7ed9159a JY |
3254 | (if (ses-warn-unsafe formula 'unsafep) |
3255 | formula | |
3256 | `(ses-unsafe ',formula))) | |
3257 | ||
3258 | (defun ses-warn-unsafe (formula checker) | |
4bdf2ad2 VB |
3259 | "Apply CHECKER to FORMULA. |
3260 | If result is non-nil, asks user for confirmation about FORMULA, | |
3261 | which might be unsafe. Returns t if formula is safe or user allows | |
3262 | execution anyway. Always returns t if `safe-functions' is t." | |
7ed9159a JY |
3263 | (if (eq safe-functions t) |
3264 | t | |
3265 | (setq checker (funcall checker formula)) | |
3266 | (if (not checker) | |
3267 | t | |
3268 | (y-or-n-p (format "Formula %S\nmight be unsafe %S. Process it? " | |
3269 | formula checker))))) | |
3270 | ||
3271 | ||
58cf70d3 SM |
3272 | ;;---------------------------------------------------------------------------- |
3273 | ;; Standard formulas | |
3274 | ;;---------------------------------------------------------------------------- | |
7ed9159a | 3275 | |
cedc73f2 | 3276 | (defun ses--clean-! (&rest x) |
4bdf2ad2 | 3277 | "Clean by `delq' list X from any occurrence of `nil' or `*skip*'." |
cedc73f2 VB |
3278 | (delq nil (delq '*skip* x))) |
3279 | ||
3280 | (defun ses--clean-_ (x y) | |
3281 | "Clean list X by replacing by Y any occurrence of `nil' or `*skip*'. | |
3282 | ||
4bdf2ad2 | 3283 | This will change X by making `setcar' on its cons cells." |
cedc73f2 VB |
3284 | (let ((ret x) ret-elt) |
3285 | (while ret | |
3286 | (setq ret-elt (car ret)) | |
3287 | (when (memq ret-elt '(nil *skip*)) | |
3288 | (setcar ret y)) | |
3289 | (setq ret (cdr ret)))) | |
3290 | x) | |
3291 | ||
3292 | (defmacro ses-range (from to &rest rest) | |
4bdf2ad2 | 3293 | "Expand to a list of cell-symbols for the range going from |
cedc73f2 VB |
3294 | FROM up to TO. The range automatically expands to include any |
3295 | new row or column inserted into its middle. The SES library code | |
3296 | specifically looks for the symbol `ses-range', so don't create an | |
3297 | alias for this macro! | |
3298 | ||
3299 | By passing in REST some flags one can configure the way the range | |
3300 | is read and how it is formatted. | |
3301 | ||
3302 | In the sequel we assume that cells A1, B1, A2 B2 have respective values | |
4bdf2ad2 | 3303 | 1 2 3 and 4. |
cedc73f2 VB |
3304 | |
3305 | Readout direction is specified by a `>v', '`>^', `<v', `<^', | |
4bdf2ad2 VB |
3306 | `v>', `v<', `^>', `^<' flag. For historical reasons, in absence |
3307 | of such a flag, a default direction of `^<' is assumed. This | |
cedc73f2 VB |
3308 | way `(ses-range A1 B2 ^>)' will evaluate to `(1 3 2 4)', |
3309 | while `(ses-range A1 B2 >^)' will evaluate to (3 4 1 2). | |
3310 | ||
3311 | If the range is one row, then `>' can be used as a shorthand to | |
3312 | `>v' or `>^', and `<' to `<v' or `<^'. | |
3313 | ||
3314 | If the range is one column, then `v' can be used as a shorthand to | |
3315 | `v>' or `v<', and `^' to `^>' or `v<'. | |
3316 | ||
3317 | A `!' flag will remove all cells whose value is nil or `*skip*'. | |
3318 | ||
3319 | A `_' flag will replace nil or `*skip*' by the value following | |
4bdf2ad2 | 3320 | the `_' flag. If the `_' flag is the last argument, then they are |
cedc73f2 VB |
3321 | replaced by integer 0. |
3322 | ||
3323 | A `*', `*1' or `*2' flag will vectorize the range in the sense of | |
4bdf2ad2 | 3324 | Calc. See info node `(Calc) Top'. Flag `*' will output either a |
cedc73f2 VB |
3325 | vector or a matrix depending on the number of rows, `*1' will |
3326 | flatten the result to a one row vector, and `*2' will make a | |
3327 | matrix whatever the number of rows. | |
3328 | ||
4bdf2ad2 VB |
3329 | Warning: interaction with Calc is experimental and may produce |
3330 | confusing results if you are not aware of Calc data format. | |
3331 | Use `math-format-value' as a printer for Calc objects." | |
cedc73f2 VB |
3332 | (let (result-row |
3333 | result | |
3334 | (prev-row -1) | |
3335 | (reorient-x nil) | |
3336 | (reorient-y nil) | |
3337 | transpose vectorize | |
3338 | (clean 'list)) | |
7ed9159a | 3339 | (ses-dorange (cons from to) |
cedc73f2 VB |
3340 | (when (/= prev-row row) |
3341 | (push result-row result) | |
3342 | (setq result-row nil)) | |
3343 | (push (ses-cell-symbol row col) result-row) | |
3344 | (setq prev-row row)) | |
3345 | (push result-row result) | |
3346 | (while rest | |
3347 | (let ((x (pop rest))) | |
3348 | (case x | |
3349 | ((>v) (setq transpose nil reorient-x nil reorient-y nil)) | |
3350 | ((>^)(setq transpose nil reorient-x nil reorient-y t)) | |
3351 | ((<^)(setq transpose nil reorient-x t reorient-y t)) | |
3352 | ((<v)(setq transpose nil reorient-x t reorient-y nil)) | |
3353 | ((v>)(setq transpose t reorient-x nil reorient-y t)) | |
3354 | ((^>)(setq transpose t reorient-x nil reorient-y nil)) | |
3355 | ((^<)(setq transpose t reorient-x t reorient-y nil)) | |
3356 | ((v<)(setq transpose t reorient-x t reorient-y t)) | |
3357 | ((* *2 *1) (setq vectorize x)) | |
3358 | ((!) (setq clean 'ses--clean-!)) | |
3359 | ((_) (setq clean `(lambda (&rest x) (ses--clean-_ x ,(if rest (pop rest) 0))))) | |
3360 | (t | |
3361 | (cond | |
3362 | ; shorthands one row | |
3363 | ((and (null (cddr result)) (memq x '(> <))) | |
3364 | (push (intern (concat (symbol-name x) "v")) rest)) | |
3365 | ; shorthands one col | |
3366 | ((and (null (cdar result)) (memq x '(v ^))) | |
3367 | (push (intern (concat (symbol-name x) ">")) rest)) | |
3368 | (t (error "Unexpected flag `%S' in ses-range" x))))))) | |
3369 | (if reorient-y | |
3370 | (setcdr (last result 2) nil) | |
3371 | (setq result (cdr (nreverse result)))) | |
3372 | (unless reorient-x | |
3373 | (setq result (mapcar 'nreverse result))) | |
3374 | (when transpose | |
3375 | (let ((ret (mapcar (lambda (x) (list x)) (pop result))) iter) | |
3376 | (while result | |
3377 | (setq iter ret) | |
3378 | (dolist (elt (pop result)) | |
3379 | (setcar iter (cons elt (car iter))) | |
3380 | (setq iter (cdr iter)))) | |
3381 | (setq result ret))) | |
3382 | ||
3383 | (flet ((vectorize-*1 | |
3384 | (clean result) | |
3385 | (cons clean (cons (quote 'vec) (apply 'append result)))) | |
3386 | (vectorize-*2 | |
3387 | (clean result) | |
3388 | (cons clean (cons (quote 'vec) (mapcar (lambda (x) | |
3389 | (cons clean (cons (quote 'vec) x))) | |
3390 | result))))) | |
3391 | (case vectorize | |
3392 | ((nil) (cons clean (apply 'append result))) | |
3393 | ((*1) (vectorize-*1 clean result)) | |
3394 | ((*2) (vectorize-*2 clean result)) | |
3395 | ((*) (if (cdr result) | |
3396 | (vectorize-*2 clean result) | |
3397 | (vectorize-*1 clean result))))))) | |
7ed9159a JY |
3398 | |
3399 | (defun ses-delete-blanks (&rest args) | |
3400 | "Return ARGS reversed, with the blank elements (nil and *skip*) removed." | |
3401 | (let (result) | |
3402 | (dolist (cur args) | |
58cf70d3 SM |
3403 | (unless (memq cur '(nil *skip*)) |
3404 | (push cur result))) | |
7ed9159a JY |
3405 | result)) |
3406 | ||
3407 | (defun ses+ (&rest args) | |
3408 | "Compute the sum of the arguments, ignoring blanks." | |
3409 | (apply '+ (apply 'ses-delete-blanks args))) | |
3410 | ||
3411 | (defun ses-average (list) | |
3412 | "Computes the sum of the numbers in LIST, divided by their length. Blanks | |
3413 | are ignored. Result is always floating-point, even if all args are integers." | |
3414 | (setq list (apply 'ses-delete-blanks list)) | |
3415 | (/ (float (apply '+ list)) (length list))) | |
3416 | ||
3417 | (defmacro ses-select (fromrange test torange) | |
4bdf2ad2 VB |
3418 | "Select cells in FROMRANGE that are `equal' to TEST. |
3419 | For each match, return the corresponding cell from TORANGE. | |
3420 | The ranges are macroexpanded but not evaluated so they should be | |
3421 | either (ses-range BEG END) or (list ...). The TEST is evaluated." | |
7ed9159a JY |
3422 | (setq fromrange (cdr (macroexpand fromrange)) |
3423 | torange (cdr (macroexpand torange)) | |
3424 | test (eval test)) | |
3425 | (or (= (length fromrange) (length torange)) | |
3426 | (error "ses-select: Ranges not same length")) | |
3427 | (let (result) | |
3428 | (dolist (x fromrange) | |
3429 | (if (equal test (symbol-value x)) | |
3430 | (push (car torange) result)) | |
3431 | (setq torange (cdr torange))) | |
3432 | (cons 'list result))) | |
3433 | ||
3434 | ;;All standard formulas are safe | |
ddd1c214 JY |
3435 | (dolist (x '(ses-cell-value ses-range ses-delete-blanks ses+ ses-average |
3436 | ses-select)) | |
7ed9159a JY |
3437 | (put x 'side-effect-free t)) |
3438 | ||
3439 | ||
58cf70d3 SM |
3440 | ;;---------------------------------------------------------------------------- |
3441 | ;; Standard print functions | |
3442 | ;;---------------------------------------------------------------------------- | |
7ed9159a | 3443 | |
2bb63e81 VB |
3444 | ;; These functions use the variables 'row' and 'col' that are dynamically bound |
3445 | ;; by ses-print-cell. We define these variables at compile-time to make the | |
3446 | ;; compiler happy. | |
28e77c46 GM |
3447 | (defvar row) |
3448 | (defvar col) | |
7ed9159a JY |
3449 | |
3450 | (defun ses-center (value &optional span fill) | |
4bdf2ad2 VB |
3451 | "Print VALUE, centered within column. |
3452 | FILL is the fill character for centering (default = space). | |
3453 | SPAN indicates how many additional rightward columns to include | |
3454 | in width (default = 0)." | |
94be2532 | 3455 | (let ((printer (or (ses-col-printer col) ses--default-printer)) |
7ed9159a JY |
3456 | (width (ses-col-width col)) |
3457 | half) | |
51616cd5 | 3458 | (or fill (setq fill ?\s)) |
7ed9159a JY |
3459 | (or span (setq span 0)) |
3460 | (setq value (ses-call-printer printer value)) | |
3461 | (dotimes (x span) | |
3462 | (setq width (+ width 1 (ses-col-width (+ col span (- x)))))) | |
2bb63e81 | 3463 | ;; Set column width. |
c0c30dd1 | 3464 | (setq width (- width (string-width value))) |
7ed9159a | 3465 | (if (<= width 0) |
2bb63e81 | 3466 | value ; Too large for field, anyway. |
7ed9159a JY |
3467 | (setq half (make-string (/ width 2) fill)) |
3468 | (concat half value half | |
3469 | (if (> (% width 2) 0) (char-to-string fill)))))) | |
3470 | ||
3471 | (defun ses-center-span (value &optional fill) | |
3472 | "Print VALUE, centered within the span that starts in the current column | |
4bdf2ad2 VB |
3473 | and continues until the next nonblank column. |
3474 | FILL specifies the fill character (default = space)." | |
7ed9159a | 3475 | (let ((end (1+ col))) |
94be2532 | 3476 | (while (and (< end ses--numcols) |
7ed9159a JY |
3477 | (memq (ses-cell-value row end) '(nil *skip*))) |
3478 | (setq end (1+ end))) | |
3479 | (ses-center value (- end col 1) fill))) | |
3480 | ||
3481 | (defun ses-dashfill (value &optional span) | |
4bdf2ad2 VB |
3482 | "Print VALUE centered using dashes. |
3483 | SPAN indicates how many rightward columns to include in width (default = 0)." | |
7ed9159a JY |
3484 | (ses-center value span ?-)) |
3485 | ||
3486 | (defun ses-dashfill-span (value) | |
3487 | "Print VALUE, centered using dashes within the span that starts in the | |
3488 | current column and continues until the next nonblank column." | |
3489 | (ses-center-span value ?-)) | |
3490 | ||
3491 | (defun ses-tildefill-span (value) | |
3492 | "Print VALUE, centered using tildes within the span that starts in the | |
3493 | current column and continues until the next nonblank column." | |
3494 | (ses-center-span value ?~)) | |
3495 | ||
3496 | (defun ses-unsafe (value) | |
4bdf2ad2 | 3497 | "Substitute for an unsafe formula or printer." |
7ed9159a JY |
3498 | (error "Unsafe formula or printer")) |
3499 | ||
3500 | ;;All standard printers are safe, including ses-unsafe! | |
3501 | (dolist (x (cons 'ses-unsafe ses-standard-printer-functions)) | |
3502 | (put x 'side-effect-free t)) | |
3503 | ||
7981ad6b JB |
3504 | (defun ses-unload-function () |
3505 | "Unload the Simple Emacs Spreadsheet." | |
3506 | (dolist (fun '(copy-region-as-kill yank)) | |
3507 | (ad-remove-advice fun 'around (intern (concat "ses-" (symbol-name fun)))) | |
3508 | (ad-update fun)) | |
7981ad6b JB |
3509 | ;; continue standard unloading |
3510 | nil) | |
3511 | ||
7ed9159a JY |
3512 | (provide 'ses) |
3513 | ||
58cf70d3 | 3514 | ;;; ses.el ends here |