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136211a9 | 1 | ;; Calculator for GNU Emacs, part II [calc-sel.el] |
8f66f479 | 2 | ;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc. |
136211a9 EZ |
3 | ;; Written by Dave Gillespie, daveg@synaptics.com. |
4 | ||
5 | ;; This file is part of GNU Emacs. | |
6 | ||
7 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
8 | ;; but WITHOUT ANY WARRANTY. No author or distributor | |
9 | ;; accepts responsibility to anyone for the consequences of using it | |
10 | ;; or for whether it serves any particular purpose or works at all, | |
11 | ;; unless he says so in writing. Refer to the GNU Emacs General Public | |
12 | ;; License for full details. | |
13 | ||
14 | ;; Everyone is granted permission to copy, modify and redistribute | |
15 | ;; GNU Emacs, but only under the conditions described in the | |
16 | ;; GNU Emacs General Public License. A copy of this license is | |
17 | ;; supposed to have been given to you along with GNU Emacs so you | |
18 | ;; can know your rights and responsibilities. It should be in a | |
19 | ;; file named COPYING. Among other things, the copyright notice | |
20 | ;; and this notice must be preserved on all copies. | |
21 | ||
22 | ||
23 | ||
24 | ;; This file is autoloaded from calc-ext.el. | |
25 | (require 'calc-ext) | |
26 | ||
27 | (require 'calc-macs) | |
28 | ||
29 | (defun calc-Need-calc-sel () nil) | |
30 | ||
31 | ||
32 | ;;; Selection commands. | |
33 | ||
34 | (defun calc-select-here (num &optional once keep) | |
35 | (interactive "P") | |
36 | (calc-wrapper | |
37 | (calc-prepare-selection) | |
38 | (let ((found (calc-find-selected-part)) | |
39 | (entry calc-selection-cache-entry)) | |
40 | (or (and keep (nth 2 entry)) | |
41 | (progn | |
42 | (if once (progn | |
43 | (setq calc-keep-selection nil) | |
44 | (message "(Selection will apply to next command only)"))) | |
45 | (calc-change-current-selection | |
46 | (if found | |
47 | (if (and num (> (setq num (prefix-numeric-value num)) 0)) | |
48 | (progn | |
49 | (while (and (>= (setq num (1- num)) 0) | |
50 | (not (eq found (car entry)))) | |
51 | (setq found (calc-find-assoc-parent-formula | |
52 | (car entry) found))) | |
53 | found) | |
54 | (calc-grow-assoc-formula (car entry) found)) | |
bf77c646 | 55 | (car entry)))))))) |
136211a9 EZ |
56 | |
57 | (defun calc-select-once (num) | |
58 | (interactive "P") | |
bf77c646 | 59 | (calc-select-here num t)) |
136211a9 EZ |
60 | |
61 | (defun calc-select-here-maybe (num) | |
62 | (interactive "P") | |
bf77c646 | 63 | (calc-select-here num nil t)) |
136211a9 EZ |
64 | |
65 | (defun calc-select-once-maybe (num) | |
66 | (interactive "P") | |
bf77c646 | 67 | (calc-select-here num t t)) |
136211a9 EZ |
68 | |
69 | (defun calc-select-additional () | |
70 | (interactive) | |
71 | (calc-wrapper | |
72 | (let (calc-keep-selection) | |
73 | (calc-prepare-selection)) | |
74 | (let ((found (calc-find-selected-part)) | |
75 | (entry calc-selection-cache-entry)) | |
76 | (calc-change-current-selection | |
77 | (if found | |
78 | (let ((sel (nth 2 entry))) | |
79 | (if sel | |
80 | (progn | |
81 | (while (not (or (eq sel (car entry)) | |
82 | (calc-find-sub-formula sel found))) | |
83 | (setq sel (calc-find-assoc-parent-formula | |
84 | (car entry) sel))) | |
85 | sel) | |
86 | (calc-grow-assoc-formula (car entry) found))) | |
bf77c646 | 87 | (car entry)))))) |
136211a9 EZ |
88 | |
89 | (defun calc-select-more (num) | |
90 | (interactive "P") | |
91 | (calc-wrapper | |
92 | (calc-prepare-selection) | |
93 | (let ((entry calc-selection-cache-entry)) | |
94 | (if (nth 2 entry) | |
95 | (let ((sel (nth 2 entry))) | |
96 | (while (and (not (eq sel (car entry))) | |
97 | (>= (setq num (1- (prefix-numeric-value num))) 0)) | |
98 | (setq sel (calc-find-assoc-parent-formula (car entry) sel))) | |
99 | (calc-change-current-selection sel)) | |
bf77c646 | 100 | (calc-select-here num))))) |
136211a9 EZ |
101 | |
102 | (defun calc-select-less (num) | |
103 | (interactive "p") | |
104 | (calc-wrapper | |
105 | (calc-prepare-selection) | |
106 | (let ((found (calc-find-selected-part)) | |
107 | (entry calc-selection-cache-entry)) | |
108 | (calc-change-current-selection | |
109 | (and found | |
110 | (let ((sel (nth 2 entry)) | |
111 | old index op) | |
112 | (while (and sel | |
113 | (not (eq sel found)) | |
114 | (>= (setq num (1- num)) 0)) | |
115 | (setq old sel | |
116 | index (calc-find-sub-formula sel found)) | |
117 | (and (setq sel (and index (nth index old))) | |
118 | calc-assoc-selections | |
119 | (setq op (assq (car-safe sel) calc-assoc-ops)) | |
120 | (memq (car old) (nth index op)) | |
121 | (setq num (1+ num)))) | |
bf77c646 | 122 | sel)))))) |
136211a9 EZ |
123 | |
124 | (defun calc-select-part (num) | |
125 | (interactive "P") | |
126 | (or num (setq num (- last-command-char ?0))) | |
127 | (calc-wrapper | |
128 | (calc-prepare-selection) | |
129 | (let ((sel (calc-find-nth-part (or (nth 2 calc-selection-cache-entry) | |
130 | (car calc-selection-cache-entry)) | |
131 | num))) | |
132 | (if sel | |
133 | (calc-change-current-selection sel) | |
bf77c646 | 134 | (error "%d is not a valid sub-formula index" num))))) |
136211a9 EZ |
135 | |
136 | (defun calc-find-nth-part (expr num) | |
137 | (if (and calc-assoc-selections | |
138 | (assq (car-safe expr) calc-assoc-ops)) | |
139 | (let (op) | |
140 | (calc-find-nth-part-rec expr)) | |
141 | (if (eq (car-safe expr) 'intv) | |
142 | (and (>= num 1) (<= num 2) (nth (1+ num) expr)) | |
143 | (and (not (Math-primp expr)) (>= num 1) (< num (length expr)) | |
bf77c646 | 144 | (nth num expr))))) |
136211a9 EZ |
145 | |
146 | (defun calc-find-nth-part-rec (expr) ; uses num, op | |
147 | (or (if (and (setq op (assq (car-safe (nth 1 expr)) calc-assoc-ops)) | |
148 | (memq (car expr) (nth 1 op))) | |
149 | (calc-find-nth-part-rec (nth 1 expr)) | |
150 | (and (= (setq num (1- num)) 0) | |
151 | (nth 1 expr))) | |
152 | (if (and (setq op (assq (car-safe (nth 2 expr)) calc-assoc-ops)) | |
153 | (memq (car expr) (nth 2 op))) | |
154 | (calc-find-nth-part-rec (nth 2 expr)) | |
155 | (and (= (setq num (1- num)) 0) | |
bf77c646 | 156 | (nth 2 expr))))) |
136211a9 EZ |
157 | |
158 | (defun calc-select-next (num) | |
159 | (interactive "p") | |
160 | (if (< num 0) | |
161 | (calc-select-previous (- num)) | |
162 | (calc-wrapper | |
163 | (calc-prepare-selection) | |
164 | (let* ((entry calc-selection-cache-entry) | |
165 | (sel (nth 2 entry))) | |
166 | (if sel | |
167 | (progn | |
168 | (while (>= (setq num (1- num)) 0) | |
169 | (let* ((parent (calc-find-parent-formula (car entry) sel)) | |
170 | (p parent) | |
171 | op) | |
172 | (and (eq p t) (setq p nil)) | |
173 | (while (and (setq p (cdr p)) | |
174 | (not (eq (car p) sel)))) | |
175 | (if (cdr p) | |
176 | (setq sel (or (and calc-assoc-selections | |
177 | (setq op (assq (car-safe (nth 1 p)) | |
178 | calc-assoc-ops)) | |
179 | (memq (car parent) (nth 2 op)) | |
180 | (nth 1 (nth 1 p))) | |
181 | (nth 1 p))) | |
182 | (if (and calc-assoc-selections | |
183 | (setq op (assq (car-safe parent) calc-assoc-ops)) | |
184 | (consp (setq p (calc-find-parent-formula | |
185 | (car entry) parent))) | |
186 | (eq (nth 1 p) parent) | |
187 | (memq (car p) (nth 1 op))) | |
188 | (setq sel (nth 2 p)) | |
189 | (error "No \"next\" sub-formula"))))) | |
190 | (calc-change-current-selection sel)) | |
191 | (if (Math-primp (car entry)) | |
192 | (calc-change-current-selection (car entry)) | |
bf77c646 | 193 | (calc-select-part num))))))) |
136211a9 EZ |
194 | |
195 | (defun calc-select-previous (num) | |
196 | (interactive "p") | |
197 | (if (< num 0) | |
198 | (calc-select-next (- num)) | |
199 | (calc-wrapper | |
200 | (calc-prepare-selection) | |
201 | (let* ((entry calc-selection-cache-entry) | |
202 | (sel (nth 2 entry))) | |
203 | (if sel | |
204 | (progn | |
205 | (while (>= (setq num (1- num)) 0) | |
206 | (let* ((parent (calc-find-parent-formula (car entry) sel)) | |
207 | (p (cdr-safe parent)) | |
208 | (prev nil) | |
209 | op) | |
210 | (if (eq (car-safe parent) 'intv) (setq p (cdr p))) | |
211 | (while (and (not (eq (car p) sel)) | |
212 | (setq prev (car p) | |
213 | p (cdr p)))) | |
214 | (if prev | |
215 | (setq sel (or (and calc-assoc-selections | |
216 | (setq op (assq (car-safe prev) | |
217 | calc-assoc-ops)) | |
218 | (memq (car parent) (nth 1 op)) | |
219 | (nth 2 prev)) | |
220 | prev)) | |
221 | (if (and calc-assoc-selections | |
222 | (setq op (assq (car-safe parent) calc-assoc-ops)) | |
223 | (consp (setq p (calc-find-parent-formula | |
224 | (car entry) parent))) | |
225 | (eq (nth 2 p) parent) | |
226 | (memq (car p) (nth 2 op))) | |
227 | (setq sel (nth 1 p)) | |
228 | (error "No \"previous\" sub-formula"))))) | |
229 | (calc-change-current-selection sel)) | |
230 | (if (Math-primp (car entry)) | |
231 | (calc-change-current-selection (car entry)) | |
232 | (let ((len (if (and calc-assoc-selections | |
233 | (assq (car (car entry)) calc-assoc-ops)) | |
234 | (let (op (num 0)) | |
235 | (calc-find-nth-part-rec (car entry)) | |
236 | (- 1 num)) | |
237 | (length (car entry))))) | |
bf77c646 | 238 | (calc-select-part (- len num))))))))) |
136211a9 EZ |
239 | |
240 | (defun calc-find-parent-formula (expr part) | |
241 | (cond ((eq expr part) t) | |
242 | ((Math-primp expr) nil) | |
243 | (t | |
244 | (let ((p expr) res) | |
245 | (while (and (setq p (cdr p)) | |
246 | (not (setq res (calc-find-parent-formula | |
247 | (car p) part))))) | |
248 | (and p | |
bf77c646 | 249 | (if (eq res t) expr res)))))) |
136211a9 EZ |
250 | |
251 | ||
252 | (defun calc-find-assoc-parent-formula (expr part) | |
bf77c646 | 253 | (calc-grow-assoc-formula expr (calc-find-parent-formula expr part))) |
136211a9 EZ |
254 | |
255 | (defun calc-grow-assoc-formula (expr part) | |
256 | (if calc-assoc-selections | |
257 | (let ((op (assq (car-safe part) calc-assoc-ops))) | |
258 | (if op | |
259 | (let (new) | |
260 | (while (and (consp (setq new (calc-find-parent-formula | |
261 | expr part))) | |
262 | (memq (car new) | |
263 | (nth (calc-find-sub-formula new part) op))) | |
264 | (setq part new)))) | |
265 | part) | |
bf77c646 | 266 | part)) |
136211a9 EZ |
267 | |
268 | (defun calc-find-sub-formula (expr part) | |
269 | (cond ((eq expr part) t) | |
270 | ((Math-primp expr) nil) | |
271 | (t | |
272 | (let ((num 1)) | |
273 | (while (and (setq expr (cdr expr)) | |
274 | (not (calc-find-sub-formula (car expr) part))) | |
275 | (setq num (1+ num))) | |
bf77c646 | 276 | (and expr num))))) |
136211a9 EZ |
277 | |
278 | (defun calc-unselect (num) | |
279 | (interactive "P") | |
280 | (calc-wrapper | |
281 | (calc-prepare-selection num) | |
bf77c646 | 282 | (calc-change-current-selection nil))) |
136211a9 EZ |
283 | |
284 | (defun calc-clear-selections () | |
285 | (interactive) | |
286 | (calc-wrapper | |
287 | (let ((limit (calc-stack-size)) | |
288 | (n 1)) | |
289 | (while (<= n limit) | |
290 | (if (calc-top n 'sel) | |
291 | (progn | |
292 | (calc-prepare-selection n) | |
293 | (calc-change-current-selection nil))) | |
294 | (setq n (1+ n)))) | |
bf77c646 | 295 | (calc-clear-command-flag 'position-point))) |
136211a9 EZ |
296 | |
297 | (defun calc-show-selections (arg) | |
298 | (interactive "P") | |
299 | (calc-wrapper | |
300 | (calc-preserve-point) | |
301 | (setq calc-show-selections (if arg | |
302 | (> (prefix-numeric-value arg) 0) | |
303 | (not calc-show-selections))) | |
304 | (let ((p calc-stack)) | |
305 | (while (and p | |
306 | (or (null (nth 2 (car p))) | |
307 | (equal (car p) calc-selection-cache-entry))) | |
308 | (setq p (cdr p))) | |
309 | (or (and p | |
310 | (let ((calc-selection-cache-default-entry | |
311 | calc-selection-cache-entry)) | |
312 | (calc-do-refresh))) | |
313 | (and calc-selection-cache-entry | |
314 | (let ((sel (nth 2 calc-selection-cache-entry))) | |
315 | (setcar (nthcdr 2 calc-selection-cache-entry) nil) | |
316 | (calc-change-current-selection sel))))) | |
317 | (message (if calc-show-selections | |
318 | "Displaying only selected part of formulas" | |
bf77c646 | 319 | "Displaying all but selected part of formulas")))) |
136211a9 EZ |
320 | |
321 | (defun calc-preserve-point () | |
322 | (or (looking-at "\\.\n+\\'") | |
323 | (progn | |
324 | (setq calc-final-point-line (+ (count-lines (point-min) (point)) | |
325 | (if (bolp) 1 0)) | |
326 | calc-final-point-column (current-column)) | |
bf77c646 | 327 | (calc-set-command-flag 'position-point)))) |
136211a9 EZ |
328 | |
329 | (defun calc-enable-selections (arg) | |
330 | (interactive "P") | |
331 | (calc-wrapper | |
332 | (calc-preserve-point) | |
333 | (setq calc-use-selections (if arg | |
334 | (> (prefix-numeric-value arg) 0) | |
335 | (not calc-use-selections))) | |
336 | (calc-set-command-flag 'renum-stack) | |
337 | (message (if calc-use-selections | |
338 | "Commands operate only on selected sub-formulas" | |
bf77c646 | 339 | "Selections of sub-formulas have no effect")))) |
136211a9 EZ |
340 | |
341 | (defun calc-break-selections (arg) | |
342 | (interactive "P") | |
343 | (calc-wrapper | |
344 | (calc-preserve-point) | |
345 | (setq calc-assoc-selections (if arg | |
346 | (<= (prefix-numeric-value arg) 0) | |
347 | (not calc-assoc-selections))) | |
348 | (message (if calc-assoc-selections | |
349 | "Selection treats a+b+c as a sum of three terms" | |
bf77c646 | 350 | "Selection treats a+b+c as (a+b)+c")))) |
136211a9 EZ |
351 | |
352 | (defun calc-prepare-selection (&optional num) | |
353 | (or num (setq num (calc-locate-cursor-element (point)))) | |
354 | (setq calc-selection-true-num num | |
355 | calc-keep-selection t) | |
356 | (or (> num 0) (setq num 1)) | |
357 | ;; (if (or (< num 1) (> num (calc-stack-size))) | |
358 | ;; (error "Cursor must be positioned on a stack element")) | |
359 | (let* ((entry (calc-top num 'entry)) | |
360 | ww w) | |
361 | (or (equal entry calc-selection-cache-entry) | |
362 | (progn | |
363 | (setcar entry (calc-encase-atoms (car entry))) | |
364 | (setq calc-selection-cache-entry entry | |
365 | calc-selection-cache-num num | |
366 | calc-selection-cache-comp | |
367 | (let ((math-comp-tagged t)) | |
368 | (math-compose-expr (car entry) 0)) | |
369 | calc-selection-cache-offset | |
370 | (+ (car (math-stack-value-offset calc-selection-cache-comp)) | |
371 | (length calc-left-label) | |
372 | (if calc-line-numbering 4 0)))))) | |
bf77c646 | 373 | (calc-preserve-point)) |
136211a9 EZ |
374 | (setq calc-selection-cache-entry nil) |
375 | ||
376 | ;;; The following ensures that no two subformulas will be "eq" to each other! | |
377 | (defun calc-encase-atoms (x) | |
378 | (if (or (not (consp x)) | |
379 | (equal x '(float 0 0))) | |
380 | (list 'cplx x 0) | |
381 | (calc-encase-atoms-rec x) | |
bf77c646 | 382 | x)) |
136211a9 EZ |
383 | |
384 | (defun calc-encase-atoms-rec (x) | |
385 | (or (Math-primp x) | |
386 | (progn | |
387 | (if (eq (car x) 'intv) | |
388 | (setq x (cdr x))) | |
389 | (while (setq x (cdr x)) | |
390 | (if (or (not (consp (car x))) | |
391 | (equal (car x) '(float 0 0))) | |
392 | (setcar x (list 'cplx (car x) 0)) | |
bf77c646 | 393 | (calc-encase-atoms-rec (car x))))))) |
136211a9 EZ |
394 | |
395 | (defun calc-find-selected-part () | |
396 | (let* ((math-comp-sel-hpos (- (current-column) calc-selection-cache-offset)) | |
397 | toppt | |
398 | (lcount 0) | |
399 | (spaces 0) | |
400 | (math-comp-sel-vpos (save-excursion | |
401 | (beginning-of-line) | |
402 | (let ((line (point))) | |
403 | (calc-cursor-stack-index | |
404 | calc-selection-cache-num) | |
405 | (setq toppt (point)) | |
406 | (while (< (point) line) | |
407 | (forward-line 1) | |
408 | (setq spaces (+ spaces | |
409 | (current-indentation)) | |
410 | lcount (1+ lcount))) | |
411 | (- lcount (math-comp-ascent | |
412 | calc-selection-cache-comp) -1)))) | |
413 | (math-comp-sel-cpos (- (point) toppt calc-selection-cache-offset | |
414 | spaces lcount)) | |
415 | (math-comp-sel-tag nil)) | |
416 | (and (>= math-comp-sel-hpos 0) | |
417 | (> calc-selection-true-num 0) | |
418 | (math-composition-to-string calc-selection-cache-comp 1000000)) | |
bf77c646 | 419 | (nth 1 math-comp-sel-tag))) |
136211a9 EZ |
420 | |
421 | (defun calc-change-current-selection (sub-expr) | |
422 | (or (eq sub-expr (nth 2 calc-selection-cache-entry)) | |
423 | (let ((calc-prepared-composition calc-selection-cache-comp) | |
424 | (buffer-read-only nil) | |
425 | top) | |
426 | (calc-set-command-flag 'renum-stack) | |
427 | (setcar (nthcdr 2 calc-selection-cache-entry) sub-expr) | |
428 | (calc-cursor-stack-index calc-selection-cache-num) | |
429 | (setq top (point)) | |
430 | (calc-cursor-stack-index (1- calc-selection-cache-num)) | |
431 | (delete-region top (point)) | |
432 | (let ((calc-selection-cache-default-entry calc-selection-cache-entry)) | |
433 | (insert (math-format-stack-value calc-selection-cache-entry) | |
bf77c646 | 434 | "\n"))))) |
136211a9 EZ |
435 | |
436 | (defun calc-top-selected (&optional n m) | |
437 | (and calc-any-selections | |
438 | calc-use-selections | |
439 | (progn | |
440 | (or n (setq n 1)) | |
441 | (or m (setq m 1)) | |
442 | (calc-check-stack (+ n m -1)) | |
443 | (let ((top (nthcdr (+ m calc-stack-top -1) calc-stack)) | |
444 | (sel nil)) | |
445 | (while (>= (setq n (1- n)) 0) | |
446 | (if (nth 2 (car top)) | |
447 | (setq sel (if sel t (nth 2 (car top))))) | |
448 | (setq top (cdr top))) | |
bf77c646 | 449 | sel)))) |
136211a9 EZ |
450 | |
451 | (defun calc-replace-sub-formula (expr old new) | |
452 | (setq new (calc-encase-atoms new)) | |
bf77c646 | 453 | (calc-replace-sub-formula-rec expr)) |
136211a9 EZ |
454 | |
455 | (defun calc-replace-sub-formula-rec (expr) | |
456 | (cond ((eq expr old) new) | |
457 | ((Math-primp expr) expr) | |
458 | (t | |
459 | (cons (car expr) | |
bf77c646 | 460 | (mapcar 'calc-replace-sub-formula-rec (cdr expr)))))) |
136211a9 EZ |
461 | |
462 | (defun calc-sel-error () | |
bf77c646 | 463 | (error "Illegal operation on sub-formulas")) |
136211a9 EZ |
464 | |
465 | (defun calc-replace-selections (n vals m) | |
466 | (if (calc-top-selected n m) | |
467 | (let ((num (length vals))) | |
468 | (calc-preserve-point) | |
469 | (cond | |
470 | ((= n num) | |
471 | (let* ((old (calc-top-list n m 'entry)) | |
472 | (new nil) | |
473 | (sel nil) | |
474 | val) | |
475 | (while old | |
476 | (if (nth 2 (car old)) | |
477 | (setq val (calc-encase-atoms (car vals)) | |
478 | new (cons (calc-replace-sub-formula (car (car old)) | |
479 | (nth 2 (car old)) | |
480 | val) | |
481 | new) | |
482 | sel (cons val sel)) | |
483 | (setq new (cons (car vals) new) | |
484 | sel (cons nil sel))) | |
485 | (setq vals (cdr vals) | |
486 | old (cdr old))) | |
487 | (calc-pop-stack n m t) | |
488 | (calc-push-list (nreverse new) | |
489 | m (and calc-keep-selection (nreverse sel))))) | |
490 | ((= num 1) | |
491 | (let* ((old (calc-top-list n m 'entry)) | |
492 | more) | |
493 | (while (and old (not (nth 2 (car old)))) | |
494 | (setq old (cdr old))) | |
495 | (setq more old) | |
496 | (while (and (setq more (cdr more)) (not (nth 2 (car more))))) | |
497 | (and more | |
498 | (calc-sel-error)) | |
499 | (calc-pop-stack n m t) | |
500 | (if old | |
501 | (let ((val (calc-encase-atoms (car vals)))) | |
502 | (calc-push-list (list (calc-replace-sub-formula | |
503 | (car (car old)) | |
504 | (nth 2 (car old)) | |
505 | val)) | |
506 | m (and calc-keep-selection (list val)))) | |
507 | (calc-push-list vals)))) | |
508 | (t (calc-sel-error)))) | |
509 | (calc-pop-stack n m t) | |
bf77c646 | 510 | (calc-push-list vals m))) |
136211a9 EZ |
511 | (setq calc-keep-selection t) |
512 | ||
513 | (defun calc-delete-selection (n) | |
514 | (let ((entry (calc-top n 'entry))) | |
515 | (if (nth 2 entry) | |
516 | (if (eq (nth 2 entry) (car entry)) | |
517 | (progn | |
518 | (calc-pop-stack 1 n t) | |
519 | (calc-push-list '(0) n)) | |
520 | (let ((parent (calc-find-parent-formula (car entry) (nth 2 entry))) | |
521 | (repl nil)) | |
522 | (calc-preserve-point) | |
523 | (calc-pop-stack 1 n t) | |
524 | (cond ((or (memq (car parent) '(* / %)) | |
525 | (and (eq (car parent) '^) | |
526 | (eq (nth 2 parent) (nth 2 entry)))) | |
527 | (setq repl 1)) | |
528 | ((memq (car parent) '(vec calcFunc-min calcFunc-max))) | |
529 | ((and (assq (car parent) calc-tweak-eqn-table) | |
530 | (= (length parent) 3)) | |
531 | (setq repl 'del)) | |
532 | (t | |
533 | (setq repl 0))) | |
534 | (cond | |
535 | ((eq repl 'del) | |
536 | (calc-push-list (list | |
537 | (calc-normalize | |
538 | (calc-replace-sub-formula | |
539 | (car entry) | |
540 | parent | |
541 | (if (eq (nth 2 entry) (nth 1 parent)) | |
542 | (nth 2 parent) | |
543 | (nth 1 parent))))) | |
544 | n)) | |
545 | (repl | |
546 | (calc-push-list (list | |
547 | (calc-normalize | |
548 | (calc-replace-sub-formula (car entry) | |
549 | (nth 2 entry) | |
550 | repl))) | |
551 | n)) | |
552 | (t | |
553 | (calc-push-list (list | |
554 | (calc-normalize | |
555 | (calc-replace-sub-formula (car entry) | |
556 | parent | |
557 | (delq (nth 2 entry) | |
558 | (copy-sequence | |
559 | parent))))) | |
560 | n))))) | |
bf77c646 | 561 | (calc-pop-stack 1 n t)))) |
136211a9 EZ |
562 | |
563 | (defun calc-roll-down-with-selections (n m) | |
564 | (let ((vals (append (calc-top-list m 1) | |
565 | (calc-top-list (- n m) (1+ m)))) | |
566 | (sels (append (calc-top-list m 1 'sel) | |
567 | (calc-top-list (- n m) (1+ m) 'sel)))) | |
bf77c646 | 568 | (calc-pop-push-list n vals 1 sels))) |
136211a9 EZ |
569 | |
570 | (defun calc-roll-up-with-selections (n m) | |
571 | (let ((vals (append (calc-top-list (- n m) 1) | |
572 | (calc-top-list m (- n m -1)))) | |
573 | (sels (append (calc-top-list (- n m) 1 'sel) | |
574 | (calc-top-list m (- n m -1) 'sel)))) | |
bf77c646 | 575 | (calc-pop-push-list n vals 1 sels))) |
136211a9 EZ |
576 | |
577 | (defun calc-auto-selection (entry) | |
578 | (or (nth 2 entry) | |
579 | (progn | |
580 | (and (boundp 'reselect) (setq reselect nil)) | |
581 | (calc-prepare-selection) | |
bf77c646 | 582 | (calc-grow-assoc-formula (car entry) (calc-find-selected-part))))) |
136211a9 EZ |
583 | |
584 | (defun calc-copy-selection () | |
585 | (interactive) | |
586 | (calc-wrapper | |
587 | (calc-preserve-point) | |
588 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
589 | (entry (calc-top num 'entry))) | |
bf77c646 | 590 | (calc-push (or (calc-auto-selection entry) (car entry)))))) |
136211a9 EZ |
591 | |
592 | (defun calc-del-selection () | |
593 | (interactive) | |
594 | (calc-wrapper | |
595 | (calc-preserve-point) | |
596 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
597 | (entry (calc-top num 'entry)) | |
598 | (sel (calc-auto-selection entry))) | |
599 | (setcar (nthcdr 2 entry) (and (not (eq sel (car entry))) sel)) | |
bf77c646 | 600 | (calc-delete-selection num)))) |
136211a9 EZ |
601 | |
602 | (defun calc-enter-selection () | |
603 | (interactive) | |
604 | (calc-wrapper | |
605 | (calc-preserve-point) | |
606 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
607 | (reselect calc-keep-selection) | |
608 | (entry (calc-top num 'entry)) | |
609 | (expr (car entry)) | |
610 | (sel (or (calc-auto-selection entry) expr)) | |
611 | alg) | |
612 | (let ((calc-dollar-values (list sel)) | |
613 | (calc-dollar-used 0)) | |
614 | (setq alg (calc-do-alg-entry "" "Replace selection with: ")) | |
615 | (and alg | |
616 | (progn | |
617 | (setq alg (calc-encase-atoms (car alg))) | |
618 | (calc-pop-push-record-list 1 "repl" | |
619 | (list (calc-replace-sub-formula | |
620 | expr sel alg)) | |
621 | num | |
622 | (list (and reselect alg)))))) | |
bf77c646 | 623 | (calc-handle-whys)))) |
136211a9 EZ |
624 | |
625 | (defun calc-edit-selection () | |
626 | (interactive) | |
627 | (calc-wrapper | |
628 | (calc-preserve-point) | |
629 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
630 | (reselect calc-keep-selection) | |
631 | (entry (calc-top num 'entry)) | |
632 | (expr (car entry)) | |
633 | (sel (or (calc-auto-selection entry) expr)) | |
634 | alg) | |
635 | (let ((str (math-showing-full-precision | |
8f66f479 | 636 | (math-format-nice-expr sel (frame-width))))) |
136211a9 EZ |
637 | (calc-edit-mode (list 'calc-finish-selection-edit |
638 | num (list 'quote sel) reselect)) | |
639 | (insert str "\n")))) | |
bf77c646 | 640 | (calc-show-edit-buffer)) |
136211a9 EZ |
641 | |
642 | (defun calc-finish-selection-edit (num sel reselect) | |
643 | (let ((buf (current-buffer)) | |
644 | (str (buffer-substring (point) (point-max))) | |
645 | (start (point))) | |
646 | (switch-to-buffer calc-original-buffer) | |
647 | (let ((val (math-read-expr str))) | |
648 | (if (eq (car-safe val) 'error) | |
649 | (progn | |
650 | (switch-to-buffer buf) | |
651 | (goto-char (+ start (nth 1 val))) | |
652 | (error (nth 2 val)))) | |
653 | (calc-wrapper | |
654 | (calc-preserve-point) | |
655 | (if disp-trail | |
656 | (calc-trail-display 1 t)) | |
657 | (setq val (calc-encase-atoms (calc-normalize val))) | |
658 | (let ((expr (calc-top num 'full))) | |
659 | (if (calc-find-sub-formula expr sel) | |
660 | (calc-pop-push-record-list 1 "edit" | |
661 | (list (calc-replace-sub-formula | |
662 | expr sel val)) | |
663 | num | |
664 | (list (and reselect val))) | |
665 | (calc-push val) | |
bf77c646 | 666 | (error "Original selection has been lost"))))))) |
136211a9 EZ |
667 | |
668 | (defun calc-sel-evaluate (arg) | |
669 | (interactive "p") | |
670 | (calc-slow-wrapper | |
671 | (calc-preserve-point) | |
672 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
673 | (reselect calc-keep-selection) | |
674 | (entry (calc-top num 'entry)) | |
675 | (sel (or (calc-auto-selection entry) (car entry)))) | |
676 | (calc-with-default-simplification | |
677 | (let ((math-simplify-only nil)) | |
678 | (calc-modify-simplify-mode arg) | |
679 | (let ((val (calc-encase-atoms (calc-normalize sel)))) | |
680 | (calc-pop-push-record-list 1 "jsmp" | |
681 | (list (calc-replace-sub-formula | |
682 | (car entry) sel val)) | |
683 | num | |
684 | (list (and reselect val)))))) | |
bf77c646 | 685 | (calc-handle-whys)))) |
136211a9 EZ |
686 | |
687 | (defun calc-sel-expand-formula (arg) | |
688 | (interactive "p") | |
689 | (calc-slow-wrapper | |
690 | (calc-preserve-point) | |
691 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
692 | (reselect calc-keep-selection) | |
693 | (entry (calc-top num 'entry)) | |
694 | (sel (or (calc-auto-selection entry) (car entry)))) | |
695 | (calc-with-default-simplification | |
696 | (let ((math-simplify-only nil)) | |
697 | (calc-modify-simplify-mode arg) | |
698 | (let* ((math-expand-formulas (> arg 0)) | |
699 | (val (calc-normalize sel)) | |
700 | top) | |
701 | (and (<= arg 0) | |
702 | (setq top (math-expand-formula val)) | |
703 | (setq val (calc-normalize top))) | |
704 | (setq val (calc-encase-atoms val)) | |
705 | (calc-pop-push-record-list 1 "jexf" | |
706 | (list (calc-replace-sub-formula | |
707 | (car entry) sel val)) | |
708 | num | |
709 | (list (and reselect val)))))) | |
bf77c646 | 710 | (calc-handle-whys)))) |
136211a9 EZ |
711 | |
712 | (defun calc-sel-mult-both-sides (no-simp &optional divide) | |
713 | (interactive "P") | |
714 | (calc-wrapper | |
715 | (calc-preserve-point) | |
716 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
717 | (reselect calc-keep-selection) | |
718 | (entry (calc-top num 'entry)) | |
719 | (expr (car entry)) | |
720 | (sel (or (calc-auto-selection entry) expr)) | |
721 | (func (car-safe sel)) | |
722 | alg lhs rhs) | |
723 | (setq alg (calc-with-default-simplification | |
724 | (car (calc-do-alg-entry "" | |
725 | (if divide | |
726 | "Divide both sides by: " | |
727 | "Multiply both sides by: "))))) | |
728 | (and alg | |
729 | (progn | |
730 | (if (and (or (eq func '/) | |
731 | (assq func calc-tweak-eqn-table)) | |
732 | (= (length sel) 3)) | |
733 | (progn | |
734 | (or (memq func '(/ calcFunc-eq calcFunc-neq)) | |
735 | (if (math-known-nonposp alg) | |
736 | (progn | |
737 | (setq func (nth 1 (assq func | |
738 | calc-tweak-eqn-table))) | |
739 | (or (math-known-negp alg) | |
740 | (message "Assuming this factor is nonzero"))) | |
741 | (or (math-known-posp alg) | |
742 | (if (math-known-nonnegp alg) | |
743 | (message "Assuming this factor is nonzero") | |
744 | (message "Assuming this factor is positive"))))) | |
745 | (setq lhs (list (if divide '/ '*) (nth 1 sel) alg) | |
746 | rhs (list (if divide '/ '*) (nth 2 sel) alg)) | |
747 | (or no-simp | |
748 | (progn | |
749 | (setq lhs (math-simplify lhs) | |
750 | rhs (math-simplify rhs)) | |
751 | (and (eq func '/) | |
752 | (or (Math-equal (nth 1 sel) 1) | |
753 | (Math-equal (nth 1 sel) -1) | |
754 | (and (memq (car-safe (nth 2 sel)) '(+ -)) | |
755 | (memq (car-safe alg) '(+ -)))) | |
756 | (setq rhs (math-expand-term rhs))))) | |
757 | (setq alg (calc-encase-atoms | |
758 | (calc-normalize (list func lhs rhs))))) | |
759 | (setq rhs (list (if divide '* '/) sel alg)) | |
760 | (or no-simp | |
761 | (setq rhs (math-simplify rhs))) | |
762 | (setq alg (calc-encase-atoms | |
763 | (calc-normalize (if divide | |
764 | (list '/ rhs alg) | |
765 | (list '* alg rhs)))))) | |
766 | (calc-pop-push-record-list 1 (if divide "div" "mult") | |
767 | (list (calc-replace-sub-formula | |
768 | expr sel alg)) | |
769 | num | |
770 | (list (and reselect alg))))) | |
bf77c646 | 771 | (calc-handle-whys)))) |
136211a9 EZ |
772 | |
773 | (defun calc-sel-div-both-sides (no-simp) | |
774 | (interactive "P") | |
bf77c646 | 775 | (calc-sel-mult-both-sides no-simp t)) |
136211a9 EZ |
776 | |
777 | (defun calc-sel-add-both-sides (no-simp &optional subtract) | |
778 | (interactive "P") | |
779 | (calc-wrapper | |
780 | (calc-preserve-point) | |
781 | (let* ((num (max 1 (calc-locate-cursor-element (point)))) | |
782 | (reselect calc-keep-selection) | |
783 | (entry (calc-top num 'entry)) | |
784 | (expr (car entry)) | |
785 | (sel (or (calc-auto-selection entry) expr)) | |
786 | (func (car-safe sel)) | |
787 | alg lhs rhs) | |
788 | (setq alg (calc-with-default-simplification | |
789 | (car (calc-do-alg-entry "" | |
790 | (if subtract | |
791 | "Subtract from both sides: " | |
792 | "Add to both sides: "))))) | |
793 | (and alg | |
794 | (progn | |
795 | (if (and (assq func calc-tweak-eqn-table) | |
796 | (= (length sel) 3)) | |
797 | (progn | |
798 | (setq lhs (list (if subtract '- '+) (nth 1 sel) alg) | |
799 | rhs (list (if subtract '- '+) (nth 2 sel) alg)) | |
800 | (or no-simp | |
801 | (setq lhs (math-simplify lhs) | |
802 | rhs (math-simplify rhs))) | |
803 | (setq alg (calc-encase-atoms | |
804 | (calc-normalize (list func lhs rhs))))) | |
805 | (setq rhs (list (if subtract '+ '-) sel alg)) | |
806 | (or no-simp | |
807 | (setq rhs (math-simplify rhs))) | |
808 | (setq alg (calc-encase-atoms | |
809 | (calc-normalize (list (if subtract '- '+) alg rhs))))) | |
810 | (calc-pop-push-record-list 1 (if subtract "sub" "add") | |
811 | (list (calc-replace-sub-formula | |
812 | expr sel alg)) | |
813 | num | |
814 | (list (and reselect alg))))) | |
bf77c646 | 815 | (calc-handle-whys)))) |
136211a9 EZ |
816 | |
817 | (defun calc-sel-sub-both-sides (no-simp) | |
818 | (interactive "P") | |
bf77c646 | 819 | (calc-sel-add-both-sides no-simp t)) |
136211a9 | 820 | |
bf77c646 | 821 | ;;; calc-sel.el ends here |