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[bpt/emacs.git] / lisp / calc / calc-embed.el
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1;;; calc-embed.el --- embed Calc in a buffer
2
58ba2f8f 3;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
f0fa15c5 4;; 2005, 2006, 2007 Free Software Foundation, Inc.
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5
6;; Author: David Gillespie <daveg@synaptics.com>
e8fff8ed 7;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com>
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8
9;; This file is part of GNU Emacs.
10
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11;; GNU Emacs is free software; you can redistribute it and/or modify
12;; it under the terms of the GNU General Public License as published by
13;; the Free Software Foundation; either version 2, or (at your option)
14;; any later version.
15
136211a9 16;; GNU Emacs is distributed in the hope that it will be useful,
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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
22;; along with GNU Emacs; see the file COPYING. If not, write to the
23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24;; Boston, MA 02110-1301, USA.
136211a9 25
3132f345 26;;; Commentary:
136211a9 27
3132f345 28;;; Code:
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29
30;; This file is autoloaded from calc-ext.el.
136211a9 31
937640a6 32(require 'calc-ext)
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33(require 'calc-macs)
34
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35(defun calc-show-plain (n)
36 (interactive "P")
37 (calc-wrapper
38 (calc-set-command-flag 'renum-stack)
39 (message (if (calc-change-mode 'calc-show-plain n nil t)
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40 "Including \"plain\" formulas in Calc Embedded mode"
41 "Omitting \"plain\" formulas in Calc Embedded mode"))))
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42
43
44(defvar calc-embedded-modes nil)
45(defvar calc-embedded-globals nil)
46(defvar calc-embedded-active nil)
3132f345 47(defvar calc-embedded-all-active nil)
136211a9 48(make-variable-buffer-local 'calc-embedded-all-active)
3132f345 49(defvar calc-embedded-some-active nil)
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50(make-variable-buffer-local 'calc-embedded-some-active)
51
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52;; The following variables are customizable and defined in calc.el.
53(defvar calc-embedded-announce-formula)
54(defvar calc-embedded-open-formula)
55(defvar calc-embedded-close-formula)
56(defvar calc-embedded-open-word)
57(defvar calc-embedded-close-word)
58(defvar calc-embedded-open-plain)
59(defvar calc-embedded-close-plain)
60(defvar calc-embedded-open-new-formula)
61(defvar calc-embedded-close-new-formula)
62(defvar calc-embedded-open-mode)
63(defvar calc-embedded-close-mode)
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64
65(defconst calc-embedded-mode-vars '(("precision" . calc-internal-prec)
66 ("word-size" . calc-word-size)
67 ("angles" . calc-angle-mode)
68 ("symbolic" . calc-symbolic-mode)
69 ("matrix" . calc-matrix-mode)
70 ("fractions" . calc-prefer-frac)
71 ("complex" . calc-complex-mode)
72 ("simplify" . calc-simplify-mode)
73 ("language" . the-language)
74 ("plain" . calc-show-plain)
75 ("break" . calc-line-breaking)
76 ("justify" . the-display-just)
77 ("left-label" . calc-left-label)
78 ("right-label" . calc-right-label)
79 ("radix" . calc-number-radix)
80 ("leading-zeros" . calc-leading-zeros)
81 ("grouping" . calc-group-digits)
82 ("group-char" . calc-group-char)
83 ("point-char" . calc-point-char)
84 ("frac-format" . calc-frac-format)
85 ("float-format" . calc-float-format)
86 ("complex-format" . calc-complex-format)
87 ("hms-format" . calc-hms-format)
88 ("date-format" . calc-date-format)
89 ("matrix-justify" . calc-matrix-just)
90 ("full-vectors" . calc-full-vectors)
91 ("break-vectors" . calc-break-vectors)
92 ("vector-commas" . calc-vector-commas)
93 ("vector-brackets" . calc-vector-brackets)
94 ("matrix-brackets" . calc-matrix-brackets)
95 ("strings" . calc-display-strings)
96))
97
98
99;;; Format of calc-embedded-info vector:
100;;; 0 Editing buffer.
101;;; 1 Calculator buffer.
102;;; 2 Top of current formula (marker).
103;;; 3 Bottom of current formula (marker).
104;;; 4 Top of current formula's delimiters (marker).
105;;; 5 Bottom of current formula's delimiters (marker).
106;;; 6 String representation of current formula.
107;;; 7 Non-nil if formula is embedded within a single line.
108;;; 8 Internal representation of current formula.
109;;; 9 Variable assigned by this formula, or nil.
110;;; 10 List of variables upon which this formula depends.
111;;; 11 Evaluated value of the formula, or nil.
112;;; 12 Mode settings for current formula.
113;;; 13 Local mode settings for current formula.
114;;; 14 Permanent mode settings for current formula.
115;;; 15 Global mode settings for editing buffer.
116
117
118;;; calc-embedded-active is an a-list keyed on buffers; each cdr is a
119;;; sorted list of calc-embedded-infos in that buffer. We do this
120;;; rather than using buffer-local variables because the latter are
121;;; thrown away when a buffer changes major modes.
122
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123(defvar calc-embedded-original-modes nil
124 "The mode settings for Calc buffer when put in embedded mode.")
125
126(defun calc-embedded-save-original-modes ()
127 "Save the current Calc modes when entereding embedded mode."
128 (let ((calcbuf (save-excursion
129 (calc-create-buffer)
130 (current-buffer)))
131 lang modes)
132 (if calcbuf
133 (with-current-buffer calcbuf
134 (setq lang
135 (cons calc-language calc-language-option))
136 (setq modes
137 (list (cons 'calc-display-just
138 calc-display-just)
139 (cons 'calc-display-origin
140 calc-display-origin)))
141 (let ((v calc-embedded-mode-vars))
142 (while v
143 (let ((var (cdr (car v))))
144 (unless (memq var '(the-language the-display-just))
145 (setq modes
146 (cons (cons var (symbol-value var))
147 modes))))
148 (setq v (cdr v))))
149 (setq calc-embedded-original-modes (cons lang modes)))
150 (setq calc-embedded-original-modes nil))))
151
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152(defun calc-embedded-preserve-modes ()
153 "Preserve the current modes when leaving embedded mode."
154 (interactive)
155 (if calc-embedded-info
156 (progn
157 (calc-embedded-save-original-modes)
158 (message "Current modes will be preserved when leaving embedded mode."))
159 (message "Not in embedded mode.")))
160
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161(defun calc-embedded-restore-original-modes ()
162 "Restore the original Calc modes when leaving embedded mode."
163 (let ((calcbuf (get-buffer "*Calculator*"))
164 (changed nil)
165 (lang (car calc-embedded-original-modes))
166 (modes (cdr calc-embedded-original-modes)))
167 (if (and calcbuf calc-embedded-original-modes)
168 (with-current-buffer calcbuf
169 (unless (and
170 (equal calc-language (car lang))
171 (equal calc-language-option (cdr lang)))
172 (calc-set-language (car lang) (cdr lang))
173 (setq changed t))
174 (while modes
175 (let ((mode (car modes)))
176 (unless (equal (symbol-value (car mode)) (cdr mode))
177 (set (car mode) (cdr mode))
178 (setq changed t)))
179 (setq modes (cdr modes)))
180 (when changed
181 (calc-refresh)
182 (calc-set-mode-line))))
183 (setq calc-embedded-original-modes nil)))
184
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185;; The variables calc-embed-outer-top, calc-embed-outer-bot,
186;; calc-embed-top and calc-embed-bot are
187;; local to calc-do-embedded, calc-embedded-mark-formula,
188;; calc-embedded-duplicate, calc-embedded-new-formula and
189;; calc-embedded-make-info, but are used by calc-embedded-find-bounds,
190;; which is called (directly or indirectly) by the above functions.
191(defvar calc-embed-outer-top)
192(defvar calc-embed-outer-bot)
193(defvar calc-embed-top)
194(defvar calc-embed-bot)
136211a9 195
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196;; The variable calc-embed-arg is local to calc-do-embedded,
197;; calc-embedded-update-formula, calc-embedded-edit and
198;; calc-do-embedded-activate, but is used by
199;; calc-embedded-make-info, which is called by the above
200;; functions.
201(defvar calc-embed-arg)
202
3132f345 203(defvar calc-embedded-quiet nil)
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204
205(defvar calc-embedded-firsttime)
206(defvar calc-embedded-firsttime-buf)
207(defvar calc-embedded-firsttime-formula)
208
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209;; The following is to take care of any minor modes which override
210;; a Calc command.
211(defvar calc-override-minor-modes-map
212 (make-sparse-keymap)
213 "A list of keybindings that might be overwritten by minor modes.")
214
215;; Add any keys that might be overwritten here.
216(define-key calc-override-minor-modes-map "`" 'calc-edit)
217
218(defvar calc-override-minor-modes
219 (cons t calc-override-minor-modes-map))
220
9ca6c34d 221(defun calc-do-embedded (calc-embed-arg end obeg oend)
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222 (if calc-embedded-info
223
224 ;; Turn embedded mode off or switch to a new buffer.
225 (cond ((eq (current-buffer) (aref calc-embedded-info 1))
226 (let ((calcbuf (current-buffer))
227 (buf (aref calc-embedded-info 0)))
228 (calc-embedded-original-buffer t)
229 (calc-embedded nil)
230 (switch-to-buffer calcbuf)))
231
232 ((eq (current-buffer) (aref calc-embedded-info 0))
233 (let* ((info calc-embedded-info)
234 (mode calc-embedded-modes))
235 (save-excursion
236 (set-buffer (aref info 1))
237 (if (and (> (calc-stack-size) 0)
238 (equal (calc-top 1 'full) (aref info 8)))
239 (let ((calc-no-refresh-evaltos t))
240 (if (calc-top 1 'sel)
241 (calc-unselect 1))
242 (calc-embedded-set-modes
243 (aref info 15) (aref info 12) (aref info 14))
244 (let ((calc-embedded-info nil))
245 (calc-wrapper (calc-pop-stack))))
246 (calc-set-mode-line)))
247 (setq calc-embedded-info nil
248 mode-line-buffer-identification (car mode)
249 truncate-lines (nth 2 mode)
250 buffer-read-only nil)
251 (use-local-map (nth 1 mode))
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252 (setq minor-mode-overriding-map-alist
253 (remq calc-override-minor-modes minor-mode-overriding-map-alist))
136211a9 254 (set-buffer-modified-p (buffer-modified-p))
9e74b3fb 255 (calc-embedded-restore-original-modes)
136211a9 256 (or calc-embedded-quiet
3132f345 257 (message "Back to %s mode" mode-name))))
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258
259 (t
260 (if (buffer-name (aref calc-embedded-info 0))
261 (save-excursion
262 (set-buffer (aref calc-embedded-info 0))
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263 (or (y-or-n-p (format "Cancel Calc Embedded mode in buffer %s? "
264 (buffer-name)))
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265 (keyboard-quit))
266 (calc-embedded nil)))
9ca6c34d 267 (calc-embedded calc-embed-arg end obeg oend)))
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268
269 ;; Turn embedded mode on.
270 (calc-plain-buffer-only)
271 (let ((modes (list mode-line-buffer-identification
272 (current-local-map)
273 truncate-lines))
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274 (calc-embedded-firsttime (not calc-embedded-active))
275 (calc-embedded-firsttime-buf nil)
276 (calc-embedded-firsttime-formula nil)
adb0a616 277 calc-embed-top calc-embed-bot calc-embed-outer-top calc-embed-outer-bot
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278 info chg ident)
279 (barf-if-buffer-read-only)
9e74b3fb 280 (calc-embedded-save-original-modes)
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281 (or calc-embedded-globals
282 (calc-find-globals))
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283 (setq info
284 (calc-embedded-make-info (point) nil t calc-embed-arg end obeg oend))
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285 (if (eq (car-safe (aref info 8)) 'error)
286 (progn
9e74b3fb 287 (setq calc-embedded-original-modes nil)
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288 (goto-char (nth 1 (aref info 8)))
289 (error (nth 2 (aref info 8)))))
290 (let ((mode-line-buffer-identification mode-line-buffer-identification)
291 (calc-embedded-info info)
292 (calc-embedded-no-reselect t))
293 (calc-wrapper
294 (let* ((okay nil)
295 (calc-no-refresh-evaltos t))
136211a9 296 (if (aref info 8)
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297 (progn
298 (calc-push (calc-normalize (aref info 8)))
299 (setq chg (calc-embedded-set-modes
300 (aref info 15) (aref info 12) (aref info 13))))
301 (setq chg (calc-embedded-set-modes
302 (aref info 15) (aref info 12) (aref info 13)))
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303 (calc-alg-entry)))
304 (setq calc-undo-list nil
305 calc-redo-list nil
306 ident mode-line-buffer-identification)))
307 (setq calc-embedded-info info
308 calc-embedded-modes modes
309 mode-line-buffer-identification ident
310 truncate-lines t
311 buffer-read-only t)
312 (set-buffer-modified-p (buffer-modified-p))
313 (use-local-map calc-mode-map)
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314 (setq minor-mode-overriding-map-alist
315 (cons calc-override-minor-modes
316 minor-mode-overriding-map-alist))
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317 (setq calc-no-refresh-evaltos nil)
318 (and chg calc-any-evaltos (calc-wrapper (calc-refresh-evaltos)))
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319 (let (str)
320 (save-excursion
321 (calc-select-buffer)
322 (setq str mode-line-buffer-identification))
323 (unless (equal str mode-line-buffer-identification)
324 (setq mode-line-buffer-identification str)
325 (set-buffer-modified-p (buffer-modified-p))))
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326 (if calc-embedded-firsttime
327 (run-hooks 'calc-embedded-mode-hook))
328 (if calc-embedded-firsttime-buf
329 (run-hooks 'calc-embedded-new-buffer-hook))
330 (if calc-embedded-firsttime-formula
331 (run-hooks 'calc-embedded-new-formula-hook))
136211a9 332 (or (eq calc-embedded-quiet t)
3132f345 333 (message "Embedded Calc mode enabled; %s to return to normal"
136211a9 334 (if calc-embedded-quiet
346bffae 335 "Type `C-x * x'"
136211a9 336 "Give this command again")))))
bf77c646 337 (scroll-down 0)) ; fix a bug which occurs when truncate-lines is changed.
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338
339
340(defun calc-embedded-select (arg)
341 (interactive "P")
342 (calc-embedded arg)
343 (and calc-embedded-info
344 (eq (car-safe (aref calc-embedded-info 8)) 'calcFunc-evalto)
345 (calc-select-part 1))
346 (and calc-embedded-info
347 (or (eq (car-safe (aref calc-embedded-info 8)) 'calcFunc-assign)
348 (and (eq (car-safe (aref calc-embedded-info 8)) 'calcFunc-evalto)
349 (eq (car-safe (nth 1 (aref calc-embedded-info 8)))
350 'calcFunc-assign)))
bf77c646 351 (calc-select-part 2)))
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352
353
9ca6c34d 354(defun calc-embedded-update-formula (calc-embed-arg)
136211a9 355 (interactive "P")
9ca6c34d 356 (if calc-embed-arg
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357 (let ((entry (assq (current-buffer) calc-embedded-active)))
358 (while (setq entry (cdr entry))
359 (and (eq (car-safe (aref (car entry) 8)) 'calcFunc-evalto)
9ca6c34d 360 (or (not (consp calc-embed-arg))
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361 (and (<= (aref (car entry) 2) (region-beginning))
362 (>= (aref (car entry) 3) (region-end))))
363 (save-excursion
364 (calc-embedded-update (car entry) 14 t t)))))
365 (if (and calc-embedded-info
366 (eq (current-buffer) (aref calc-embedded-info 0))
367 (>= (point) (aref calc-embedded-info 4))
368 (<= (point) (aref calc-embedded-info 5)))
369 (calc-evaluate 1)
370 (let* ((opt (point))
371 (info (calc-embedded-make-info (point) nil t))
372 (pt (- opt (aref info 4))))
373 (or (eq (car-safe (aref info 8)) 'error)
374 (progn
375 (save-excursion
376 (calc-embedded-update info 14 'eval t))
bf77c646 377 (goto-char (+ (aref info 4) pt))))))))
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378
379
9ca6c34d 380(defun calc-embedded-edit (calc-embed-arg)
136211a9 381 (interactive "P")
9ca6c34d 382 (let ((info (calc-embedded-make-info (point) nil t calc-embed-arg))
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383 str)
384 (if (eq (car-safe (aref info 8)) 'error)
385 (progn
386 (goto-char (nth 1 (aref info 8)))
387 (error (nth 2 (aref info 8)))))
388 (calc-wrapper
389 (setq str (math-showing-full-precision
af32d76e 390 (math-format-nice-expr (aref info 8) (frame-width))))
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391 (calc-edit-mode (list 'calc-embedded-finish-edit info))
392 (insert str "\n")))
bf77c646 393 (calc-show-edit-buffer))
136211a9 394
adb0a616 395(defvar calc-original-buffer)
4091a1e2 396(defvar calc-edit-top)
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397(defun calc-embedded-finish-edit (info)
398 (let ((buf (current-buffer))
4091a1e2 399 (str (buffer-substring calc-edit-top (point-max)))
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400 (start (point))
401 pos)
402 (switch-to-buffer calc-original-buffer)
403 (let ((val (save-excursion
404 (set-buffer (aref info 1))
405 (let ((calc-language nil)
406 (math-expr-opers math-standard-opers))
407 (math-read-expr str)))))
408 (if (eq (car-safe val) 'error)
409 (progn
410 (switch-to-buffer buf)
411 (goto-char (+ start (nth 1 val)))
412 (error (nth 2 val))))
413 (calc-embedded-original-buffer t info)
414 (aset info 8 val)
bf77c646 415 (calc-embedded-update info 14 t t))))
136211a9 416
9ca6c34d 417(defun calc-do-embedded-activate (calc-embed-arg cbuf)
136211a9 418 (calc-plain-buffer-only)
9ca6c34d 419 (if calc-embed-arg
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420 (calc-embedded-forget))
421 (calc-find-globals)
9ca6c34d 422 (if (< (prefix-numeric-value calc-embed-arg) 0)
3132f345 423 (message "Deactivating %s for Calc Embedded mode" (buffer-name))
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424 (message "Activating %s for Calc Embedded mode..." (buffer-name))
425 (save-excursion
426 (let* ((active (assq (current-buffer) calc-embedded-active))
427 (info active)
428 (pat " := \\| \\\\gets \\| => \\| \\\\evalto "))
429 (if calc-embedded-announce-formula
430 (setq pat (format "%s\\|\\(%s\\)"
431 pat calc-embedded-announce-formula)))
432 (while (setq info (cdr info))
433 (or (equal (buffer-substring (aref (car info) 2) (aref (car info) 3))
434 (aref (car info) 6))
435 (setcdr active (delq (car info) (cdr active)))))
436 (goto-char (point-min))
437 (while (re-search-forward pat nil t)
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438;;; (if (looking-at calc-embedded-open-formula)
439;;; (goto-char (match-end 1)))
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440 (setq info (calc-embedded-make-info (point) cbuf nil))
441 (or (eq (car-safe (aref info 8)) 'error)
442 (goto-char (aref info 5))))))
443 (message "Activating %s for Calc Embedded mode...done" (buffer-name)))
bf77c646 444 (calc-embedded-active-state t))
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445
446(defun calc-plain-buffer-only ()
447 (if (memq major-mode '(calc-mode calc-trail-mode calc-edit-mode))
bf77c646 448 (error "This command should be used in a normal editing buffer")))
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449
450(defun calc-embedded-active-state (state)
451 (or (assq 'calc-embedded-all-active minor-mode-alist)
452 (setq minor-mode-alist
453 (cons '(calc-embedded-all-active " Active")
454 (cons '(calc-embedded-some-active " ~Active")
455 minor-mode-alist))))
456 (let ((active (assq (current-buffer) calc-embedded-active)))
457 (or (cdr active)
458 (setq state nil)))
459 (and (eq state 'more) calc-embedded-all-active (setq state t))
460 (setq calc-embedded-all-active (eq state t)
461 calc-embedded-some-active (not (memq state '(nil t))))
bf77c646 462 (set-buffer-modified-p (buffer-modified-p)))
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463
464
465(defun calc-embedded-original-buffer (switch &optional info)
466 (or info (setq info calc-embedded-info))
467 (or (buffer-name (aref info 0))
468 (progn
469 (error "Calc embedded mode: Original buffer has been killed")))
470 (if switch
bf77c646 471 (set-buffer (aref info 0))))
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472
473(defun calc-embedded-word ()
474 (interactive)
1705c023 475 (calc-embedded '(t)))
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476
477(defun calc-embedded-mark-formula (&optional body-only)
478 "Put point at the beginning of this Calc formula, mark at the end.
479This normally marks the whole formula, including surrounding delimiters.
480With any prefix argument, marks only the formula itself."
481 (interactive "P")
482 (and (eq major-mode 'calc-mode)
483 (error "This command should be used in a normal editing buffer"))
adb0a616 484 (let (calc-embed-top calc-embed-bot calc-embed-outer-top calc-embed-outer-bot)
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485 (save-excursion
486 (calc-embedded-find-bounds body-only))
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487 (push-mark (if body-only calc-embed-bot calc-embed-outer-bot) t)
488 (goto-char (if body-only calc-embed-top calc-embed-outer-top))))
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489
490(defun calc-embedded-find-bounds (&optional plain)
491 ;; (while (and (bolp) (eq (following-char) ?\n))
492 ;; (forward-char 1))
493 (and (eolp) (bolp) (not (eq (char-after (- (point) 2)) ?\n))
494 (forward-char -1))
495 (let ((home (point)))
496 (or (and (looking-at calc-embedded-open-formula)
497 (not (looking-at calc-embedded-close-formula)))
498 (re-search-backward calc-embedded-open-formula nil t)
499 (error "Can't find start of formula"))
500 (and (eq (preceding-char) ?\$) ; backward search for \$\$? won't back
501 (eq (following-char) ?\$) ; up over a second $, so do it by hand.
502 (forward-char -1))
adb0a616 503 (setq calc-embed-outer-top (point))
136211a9 504 (goto-char (match-end 0))
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505 (if (looking-at "[ \t]*$")
506 (end-of-line))
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507 (if (eq (following-char) ?\n)
508 (forward-char 1))
509 (or (bolp)
510 (while (eq (following-char) ?\ )
511 (forward-char 1)))
512 (or (eq plain 'plain)
513 (if (looking-at (regexp-quote calc-embedded-open-plain))
514 (progn
515 (goto-char (match-end 0))
516 (search-forward calc-embedded-close-plain))))
adb0a616 517 (setq calc-embed-top (point))
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518 (or (re-search-forward calc-embedded-close-formula nil t)
519 (error "Can't find end of formula"))
520 (if (< (point) home)
521 (error "Not inside a formula"))
522 (and (eq (following-char) ?\n) (not (bolp))
523 (forward-char 1))
adb0a616 524 (setq calc-embed-outer-bot (point))
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525 (goto-char (match-beginning 0))
526 (if (eq (preceding-char) ?\n)
527 (backward-char 1))
528 (or (eolp)
529 (while (eq (preceding-char) ?\ )
530 (backward-char 1)))
adb0a616 531 (setq calc-embed-bot (point))))
136211a9
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532
533(defun calc-embedded-kill-formula ()
534 "Kill the formula surrounding point.
535If Calc Embedded mode was active, this deactivates it.
536The formula (including its surrounding delimiters) is saved in the kill ring.
537The command \\[yank] can retrieve it from there."
538 (interactive)
539 (and calc-embedded-info
540 (calc-embedded nil))
541 (calc-embedded-mark-formula)
542 (kill-region (point) (mark))
bf77c646 543 (pop-mark))
136211a9
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544
545(defun calc-embedded-copy-formula-as-kill ()
546 "Save the formula surrounding point as if killed, but don't kill it."
547 (interactive)
548 (save-excursion
549 (calc-embedded-mark-formula)
550 (copy-region-as-kill (point) (mark))
bf77c646 551 (pop-mark)))
136211a9
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552
553(defun calc-embedded-duplicate ()
554 (interactive)
555 (let ((already calc-embedded-info)
adb0a616 556 calc-embed-top calc-embed-bot calc-embed-outer-top calc-embed-outer-bot new-top)
136211a9
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557 (if calc-embedded-info
558 (progn
adb0a616
JB
559 (setq calc-embed-top (+ (aref calc-embedded-info 2))
560 calc-embed-bot (+ (aref calc-embedded-info 3))
561 calc-embed-outer-top (+ (aref calc-embedded-info 4))
562 calc-embed-outer-bot (+ (aref calc-embedded-info 5)))
136211a9
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563 (calc-embedded nil))
564 (calc-embedded-find-bounds))
adb0a616 565 (goto-char calc-embed-outer-bot)
136211a9
EZ
566 (insert "\n")
567 (setq new-top (point))
adb0a616
JB
568 (insert-buffer-substring (current-buffer)
569 calc-embed-outer-top calc-embed-outer-bot)
570 (goto-char (+ new-top (- calc-embed-top calc-embed-outer-top)))
136211a9 571 (let ((calc-embedded-quiet (if already t 'x)))
adb0a616
JB
572 (calc-embedded (+ new-top (- calc-embed-top calc-embed-outer-top))
573 (+ new-top (- calc-embed-bot calc-embed-outer-top))
136211a9 574 new-top
adb0a616 575 (+ new-top (- calc-embed-outer-bot calc-embed-outer-top))))))
136211a9
EZ
576
577(defun calc-embedded-next (arg)
578 (interactive "P")
579 (setq arg (prefix-numeric-value arg))
580 (let* ((active (cdr (assq (current-buffer) calc-embedded-active)))
581 (p active)
582 (num (length active)))
583 (or active
584 (error "No active formulas in buffer"))
585 (cond ((= arg 0))
586 ((= arg -1)
587 (if (<= (point) (aref (car active) 3))
588 (goto-char (aref (nth (1- num) active) 2))
589 (while (and (cdr p)
590 (> (point) (aref (nth 1 p) 3)))
591 (setq p (cdr p)))
592 (goto-char (aref (car p) 2))))
593 ((< arg -1)
594 (calc-embedded-next -1)
595 (calc-embedded-next (+ (* num 1000) arg 1)))
596 (t
597 (setq arg (1+ (% (1- arg) num)))
598 (while (and p (>= (point) (aref (car p) 2)))
599 (setq p (cdr p)))
600 (while (> (setq arg (1- arg)) 0)
601 (setq p (if p (cdr p) (cdr active))))
bf77c646 602 (goto-char (aref (car (or p active)) 2))))))
136211a9
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603
604(defun calc-embedded-previous (arg)
605 (interactive "p")
bf77c646 606 (calc-embedded-next (- (prefix-numeric-value arg))))
136211a9
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607
608(defun calc-embedded-new-formula ()
609 (interactive)
610 (and (eq major-mode 'calc-mode)
611 (error "This command should be used in a normal editing buffer"))
612 (if calc-embedded-info
613 (calc-embedded nil))
adb0a616 614 (let (calc-embed-top calc-embed-bot calc-embed-outer-top calc-embed-outer-bot)
136211a9
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615 (if (and (eq (preceding-char) ?\n)
616 (string-match "\\`\n" calc-embedded-open-new-formula))
617 (progn
adb0a616 618 (setq calc-embed-outer-top (1- (point)))
136211a9
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619 (forward-char -1)
620 (insert (substring calc-embedded-open-new-formula 1)))
adb0a616 621 (setq calc-embed-outer-top (point))
136211a9 622 (insert calc-embedded-open-new-formula))
adb0a616 623 (setq calc-embed-top (point))
136211a9 624 (insert " ")
adb0a616 625 (setq calc-embed-bot (point))
136211a9
EZ
626 (insert calc-embedded-close-new-formula)
627 (if (and (eq (following-char) ?\n)
628 (string-match "\n\\'" calc-embedded-close-new-formula))
629 (delete-char 1))
adb0a616
JB
630 (setq calc-embed-outer-bot (point))
631 (goto-char calc-embed-top)
136211a9 632 (let ((calc-embedded-quiet 'x))
adb0a616 633 (calc-embedded calc-embed-top calc-embed-bot calc-embed-outer-top calc-embed-outer-bot))))
136211a9
EZ
634
635(defun calc-embedded-forget ()
636 (interactive)
637 (setq calc-embedded-active (delq (assq (current-buffer) calc-embedded-active)
638 calc-embedded-active))
bf77c646 639 (calc-embedded-active-state nil))
136211a9 640
adb0a616
JB
641;; The variables calc-embed-prev-modes is local to calc-embedded-update,
642;; but is used by calc-embedded-set-modes.
643(defvar calc-embed-prev-modes)
136211a9
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644
645(defun calc-embedded-set-modes (gmodes modes local-modes &optional temp)
646 (let ((the-language (calc-embedded-language))
647 (the-display-just (calc-embedded-justify))
648 (v gmodes)
649 (changed nil)
650 found value)
651 (while v
652 (or (symbolp (car v))
653 (and (setq found (assq (car (car v)) modes))
654 (not (eq (cdr found) 'default)))
655 (and (setq found (assq (car (car v)) local-modes))
656 (not (eq (cdr found) 'default)))
657 (progn
658 (if (eq (setq value (cdr (car v))) 'default)
f10b7b1b 659 (setq value (list (nth 1 (assq (car (car v)) calc-mode-var-list)))))
136211a9
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660 (equal (symbol-value (car (car v))) value))
661 (progn
662 (setq changed t)
adb0a616
JB
663 (if temp (setq calc-embed-prev-modes
664 (cons (cons (car (car v))
665 (symbol-value (car (car v))))
666 calc-embed-prev-modes)))
136211a9
EZ
667 (set (car (car v)) value)))
668 (setq v (cdr v)))
669 (setq v modes)
670 (while v
671 (or (and (setq found (assq (car (car v)) local-modes))
672 (not (eq (cdr found) 'default)))
673 (eq (setq value (cdr (car v))) 'default)
674 (equal (symbol-value (car (car v))) value)
675 (progn
676 (setq changed t)
adb0a616 677 (if temp (setq calc-embed-prev-modes (cons (cons (car (car v))
136211a9 678 (symbol-value (car (car v))))
adb0a616 679 calc-embed-prev-modes)))
136211a9
EZ
680 (set (car (car v)) value)))
681 (setq v (cdr v)))
682 (setq v local-modes)
683 (while v
684 (or (eq (setq value (cdr (car v))) 'default)
685 (equal (symbol-value (car (car v))) value)
686 (progn
687 (setq changed t)
adb0a616 688 (if temp (setq calc-embed-prev-modes (cons (cons (car (car v))
136211a9 689 (symbol-value (car (car v))))
adb0a616 690 calc-embed-prev-modes)))
136211a9
EZ
691 (set (car (car v)) value)))
692 (setq v (cdr v)))
693 (and changed (not (eq temp t))
694 (progn
695 (calc-embedded-set-justify the-display-just)
696 (calc-embedded-set-language the-language)))
697 (and changed (not temp)
698 (progn
699 (setq calc-full-float-format (list (if (eq (car calc-float-format)
700 'fix)
701 'float
702 (car calc-float-format))
703 0))
704 (calc-refresh)))
bf77c646 705 changed))
136211a9
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706
707(defun calc-embedded-language ()
708 (if calc-language-option
709 (list calc-language calc-language-option)
bf77c646 710 calc-language))
136211a9
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711
712(defun calc-embedded-set-language (lang)
713 (let ((option nil))
714 (if (consp lang)
715 (setq option (nth 1 lang)
716 lang (car lang)))
717 (or (and (eq lang calc-language)
718 (equal option calc-language-option))
bf77c646 719 (calc-set-language lang option t))))
136211a9
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720
721(defun calc-embedded-justify ()
722 (if calc-display-origin
723 (list calc-display-just calc-display-origin)
bf77c646 724 calc-display-just))
136211a9
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725
726(defun calc-embedded-set-justify (just)
727 (if (consp just)
728 (setq calc-display-origin (nth 1 just)
729 calc-display-just (car just))
730 (setq calc-display-just just
bf77c646 731 calc-display-origin nil)))
136211a9
EZ
732
733
734(defun calc-find-globals ()
735 (interactive)
736 (and (eq major-mode 'calc-mode)
737 (error "This command should be used in a normal editing buffer"))
738 (make-local-variable 'calc-embedded-globals)
739 (let ((case-fold-search nil)
740 (modes nil)
741 (save-pt (point))
742 found value)
743 (goto-char (point-min))
744 (while (re-search-forward "\\[calc-global-mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)\\]" nil t)
745 (and (setq found (assoc (buffer-substring (match-beginning 1)
746 (match-end 1))
747 calc-embedded-mode-vars))
748 (or (assq (cdr found) modes)
749 (setq modes (cons (cons (cdr found)
750 (car (read-from-string
751 (buffer-substring
752 (match-beginning 2)
753 (match-end 2)))))
754 modes)))))
755 (setq calc-embedded-globals (cons t modes))
bf77c646 756 (goto-char save-pt)))
136211a9
EZ
757
758(defun calc-embedded-find-modes ()
759 (let ((case-fold-search nil)
760 (save-pt (point))
761 (no-defaults t)
762 (modes nil)
763 (emodes nil)
764 (pmodes nil)
765 found value)
766 (while (and no-defaults (search-backward "[calc-" nil t))
767 (forward-char 6)
768 (or (and (looking-at "mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]")
769 (setq found (assoc (buffer-substring (match-beginning 1)
770 (match-end 1))
771 calc-embedded-mode-vars))
772 (or (assq (cdr found) modes)
773 (setq modes (cons (cons (cdr found)
774 (car (read-from-string
775 (buffer-substring
776 (match-beginning 2)
777 (match-end 2)))))
778 modes))))
779 (and (looking-at "perm-mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]")
780 (setq found (assoc (buffer-substring (match-beginning 1)
781 (match-end 1))
782 calc-embedded-mode-vars))
783 (or (assq (cdr found) pmodes)
784 (setq pmodes (cons (cons (cdr found)
785 (car (read-from-string
786 (buffer-substring
787 (match-beginning 2)
788 (match-end 2)))))
789 pmodes))))
790 (and (looking-at "edit-mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]")
791 (setq found (assoc (buffer-substring (match-beginning 1)
792 (match-end 1))
793 calc-embedded-mode-vars))
794 (or (assq (cdr found) emodes)
795 (setq emodes (cons (cons (cdr found)
796 (car (read-from-string
797 (buffer-substring
798 (match-beginning 2)
799 (match-end 2)))))
800 emodes))))
801 (and (looking-at "defaults]")
802 (setq no-defaults nil)))
803 (backward-char 6))
804 (goto-char save-pt)
b332c7d3 805 (unless (assq 'the-language modes)
0e425a58 806 (let ((lang (assoc major-mode calc-language-alist)))
b332c7d3
JB
807 (if lang
808 (setq modes (cons (cons 'the-language (cdr lang))
809 modes)))))
bf77c646 810 (list modes emodes pmodes)))
136211a9 811
adb0a616
JB
812;; The variable calc-embed-vars-used is local to calc-embedded-make-info,
813;; calc-embedded-evaluate-expr and calc-embedded-update, but is
814;; used by calc-embedded-find-vars, which is called by the above functions.
815(defvar calc-embed-vars-used)
136211a9
EZ
816
817(defun calc-embedded-make-info (point cbuf fresh &optional
adb0a616
JB
818 calc-embed-top calc-embed-bot
819 calc-embed-outer-top calc-embed-outer-bot)
136211a9
EZ
820 (let* ((bufentry (assq (current-buffer) calc-embedded-active))
821 (found bufentry)
adb0a616
JB
822 (force (and fresh calc-embed-top))
823 (fixed calc-embed-top)
136211a9
EZ
824 (new-info nil)
825 info str)
826 (or found
33739eb8
JB
827 (and
828 (setq found (list (current-buffer))
829 calc-embedded-active (cons found calc-embedded-active)
830 calc-embedded-firsttime-buf t)
831 (let ((newann (assoc major-mode calc-embedded-announce-formula-alist))
832 (newform (assoc major-mode calc-embedded-open-close-formula-alist))
833 (newword (assoc major-mode calc-embedded-open-close-word-alist))
834 (newplain (assoc major-mode calc-embedded-open-close-plain-alist))
835 (newnewform
836 (assoc major-mode calc-embedded-open-close-new-formula-alist))
837 (newmode (assoc major-mode calc-embedded-open-close-mode-alist)))
838 (when newann
839 (make-local-variable 'calc-embedded-announce-formula)
840 (setq calc-embedded-announce-formula (cdr newann)))
841 (when newform
842 (make-local-variable 'calc-embedded-open-formula)
843 (make-local-variable 'calc-embedded-close-formula)
844 (setq calc-embedded-open-formula (nth 0 (cdr newform)))
845 (setq calc-embedded-close-formula (nth 1 (cdr newform))))
846 (when newword
847 (make-local-variable 'calc-embedded-open-word)
848 (make-local-variable 'calc-embedded-close-word)
849 (setq calc-embedded-open-word (nth 0 (cdr newword)))
850 (setq calc-embedded-close-word (nth 1 (cdr newword))))
851 (when newplain
852 (make-local-variable 'calc-embedded-open-plain)
853 (make-local-variable 'calc-embedded-close-plain)
854 (setq calc-embedded-open-plain (nth 0 (cdr newplain)))
855 (setq calc-embedded-close-plain (nth 1 (cdr newplain))))
856 (when newnewform
857 (make-local-variable 'calc-embedded-open-new-formula)
858 (make-local-variable 'calc-embedded-close-new-formula)
859 (setq calc-embedded-open-new-formula (nth 0 (cdr newnewform)))
860 (setq calc-embedded-close-new-formula (nth 1 (cdr newnewform))))
861 (when newmode
862 (make-local-variable 'calc-embedded-open-mode)
863 (make-local-variable 'calc-embedded-close-mode)
864 (setq calc-embedded-open-mode (nth 0 (cdr newmode)))
865 (setq calc-embedded-close-mode (nth 1 (cdr newmode)))))))
136211a9
EZ
866 (while (and (cdr found)
867 (> point (aref (car (cdr found)) 3)))
868 (setq found (cdr found)))
869 (if (and (cdr found)
870 (>= point (aref (nth 1 found) 2)))
33739eb8
JB
871 (setq info (nth 1 found))
872 (setq calc-embedded-firsttime-formula t)
136211a9
EZ
873 (setq info (make-vector 16 nil)
874 new-info t
875 fresh t)
876 (aset info 0 (current-buffer))
877 (aset info 1 (or cbuf (save-excursion
878 (calc-create-buffer)
879 (current-buffer)))))
1705c023
JB
880 (if (and
881 (or (integerp calc-embed-top) (equal calc-embed-top '(4)))
882 (not calc-embed-bot))
adb0a616 883 ; started with a user-supplied argument
136211a9 884 (progn
1705c023
JB
885 (if (equal calc-embed-top '(4))
886 (progn
887 (aset info 2 (copy-marker (line-beginning-position)))
888 (aset info 3 (copy-marker (line-end-position))))
889 (if (= (setq calc-embed-arg (prefix-numeric-value calc-embed-arg)) 0)
c622c18e 890 (progn
1705c023
JB
891 (aset info 2 (copy-marker (region-beginning)))
892 (aset info 3 (copy-marker (region-end))))
893 (aset info (if (> calc-embed-arg 0) 2 3) (point-marker))
894 (if (> calc-embed-arg 0)
895 (progn
896 (forward-line (1- calc-embed-arg))
897 (end-of-line))
898 (forward-line (1+ calc-embed-arg)))
899 (aset info (if (> calc-embed-arg 0) 3 2) (point-marker))))
136211a9
EZ
900 (aset info 4 (copy-marker (aref info 2)))
901 (aset info 5 (copy-marker (aref info 3))))
902 (if (aref info 4)
adb0a616
JB
903 (setq calc-embed-top (aref info 2)
904 fixed calc-embed-top)
905 (if (consp calc-embed-top)
136211a9
EZ
906 (let ((calc-embedded-open-formula calc-embedded-open-word)
907 (calc-embedded-close-formula calc-embedded-close-word))
908 (calc-embedded-find-bounds 'plain))
adb0a616 909 (or calc-embed-top
136211a9 910 (calc-embedded-find-bounds 'plain)))
adb0a616
JB
911 (aset info 2 (copy-marker (min calc-embed-top calc-embed-bot)))
912 (aset info 3 (copy-marker (max calc-embed-top calc-embed-bot)))
913 (aset info 4 (copy-marker (or calc-embed-outer-top (aref info 2))))
914 (aset info 5 (copy-marker (or calc-embed-outer-bot (aref info 3))))))
136211a9
EZ
915 (goto-char (aref info 2))
916 (if new-info
917 (progn
918 (or (bolp) (aset info 7 t))
919 (goto-char (aref info 3))
920 (or (bolp) (eolp) (aset info 7 t))))
921 (if fresh
922 (let ((modes (calc-embedded-find-modes)))
923 (aset info 12 (car modes))
924 (aset info 13 (nth 1 modes))
925 (aset info 14 (nth 2 modes))))
926 (aset info 15 calc-embedded-globals)
927 (setq str (buffer-substring (aref info 2) (aref info 3)))
928 (if (or force
929 (not (equal str (aref info 6))))
930 (if (and fixed (aref info 6))
931 (progn
932 (aset info 4 nil)
933 (calc-embedded-make-info point cbuf nil)
934 (setq new-info nil))
935 (let* ((open-plain calc-embedded-open-plain)
936 (close-plain calc-embedded-close-plain)
937 (pref-len (length open-plain))
adb0a616 938 (calc-embed-vars-used nil)
136211a9
EZ
939 suff-pos val temp)
940 (save-excursion
941 (set-buffer (aref info 1))
942 (calc-embedded-set-modes (aref info 15)
943 (aref info 12) (aref info 14))
944 (if (and (> (length str) pref-len)
945 (equal (substring str 0 pref-len) open-plain)
946 (setq suff-pos (string-match (regexp-quote close-plain)
947 str pref-len)))
948 (setq val (math-read-plain-expr
949 (substring str pref-len suff-pos)))
950 (if (string-match "[^ \t\n]" str)
951 (setq pref-len 0
a48b489e
JB
952 val (condition-case nil
953 (math-read-big-expr str)
954 (error (math-read-expr str))))
136211a9
EZ
955 (setq val nil))))
956 (if (eq (car-safe val) 'error)
957 (setq val (list 'error
958 (+ (aref info 2) pref-len (nth 1 val))
959 (nth 2 val))))
960 (aset info 6 str)
961 (aset info 8 val)
962 (setq temp val)
963 (if (eq (car-safe temp) 'calcFunc-evalto)
964 (setq temp (nth 1 temp))
965 (if (eq (car-safe temp) 'error)
966 (if new-info
967 (setq new-info nil)
968 (setcdr found (delq info (cdr found)))
969 (calc-embedded-active-state 'less))))
970 (aset info 9 (and (eq (car-safe temp) 'calcFunc-assign)
971 (nth 1 temp)))
972 (if (memq (car-safe val) '(calcFunc-evalto calcFunc-assign))
973 (calc-embedded-find-vars val))
adb0a616 974 (aset info 10 calc-embed-vars-used)
136211a9
EZ
975 (aset info 11 nil))))
976 (if new-info
977 (progn
978 (setcdr found (cons info (cdr found)))
979 (calc-embedded-active-state 'more)))
bf77c646 980 info))
136211a9
EZ
981
982(defun calc-embedded-find-vars (x)
983 (cond ((Math-primp x)
984 (and (eq (car-safe x) 'var)
adb0a616
JB
985 (not (assoc x calc-embed-vars-used))
986 (setq calc-embed-vars-used (cons (list x) calc-embed-vars-used))))
136211a9
EZ
987 ((eq (car x) 'calcFunc-evalto)
988 (calc-embedded-find-vars (nth 1 x)))
989 ((eq (car x) 'calcFunc-assign)
990 (calc-embedded-find-vars (nth 2 x)))
991 (t
992 (and (eq (car x) 'calcFunc-subscr)
993 (eq (car-safe (nth 1 x)) 'var)
994 (Math-primp (nth 2 x))
adb0a616
JB
995 (not (assoc x calc-embed-vars-used))
996 (setq calc-embed-vars-used (cons (list x) calc-embed-vars-used)))
136211a9 997 (while (setq x (cdr x))
bf77c646 998 (calc-embedded-find-vars (car x))))))
136211a9 999
60e52745 1000(defvar math-ms-args)
136211a9 1001(defun calc-embedded-evaluate-expr (x)
adb0a616
JB
1002 (let ((calc-embed-vars-used (aref calc-embedded-info 10)))
1003 (or calc-embed-vars-used (calc-embedded-find-vars x))
1004 (if calc-embed-vars-used
136211a9 1005 (let ((active (assq (aref calc-embedded-info 0) calc-embedded-active))
60e52745 1006 (math-ms-args nil))
136211a9
EZ
1007 (save-excursion
1008 (calc-embedded-original-buffer t)
1009 (or active
1010 (progn
1011 (calc-embedded-activate)
1012 (setq active (assq (aref calc-embedded-info 0)
1013 calc-embedded-active))))
adb0a616
JB
1014 (while calc-embed-vars-used
1015 (calc-embedded-eval-get-var (car (car calc-embed-vars-used)) active)
1016 (setq calc-embed-vars-used (cdr calc-embed-vars-used))))
136211a9 1017 (calc-embedded-subst x))
bf77c646 1018 (calc-normalize (math-evaluate-expr-rec x)))))
136211a9
EZ
1019
1020(defun calc-embedded-subst (x)
1021 (if (and (eq (car-safe x) 'calcFunc-evalto) (cdr x))
1022 (let ((rhs (calc-embedded-subst (nth 1 x))))
1023 (list 'calcFunc-evalto
1024 (nth 1 x)
1025 (if (eq (car-safe rhs) 'calcFunc-assign) (nth 2 rhs) rhs)))
1026 (if (and (eq (car-safe x) 'calcFunc-assign) (= (length x) 3))
1027 (list 'calcFunc-assign
1028 (nth 1 x)
1029 (calc-embedded-subst (nth 2 x)))
60e52745 1030 (calc-normalize (math-evaluate-expr-rec (math-multi-subst-rec x))))))
136211a9
EZ
1031
1032(defun calc-embedded-eval-get-var (var base)
1033 (let ((entry base)
1034 (point (aref calc-embedded-info 2))
1035 (last nil)
1036 val)
1037 (while (and (setq entry (cdr entry))
1038 (or (not (equal var (aref (car entry) 9)))
1039 (and (> point (aref (car entry) 3))
1040 (setq last entry)))))
1041 (if last
1042 (setq entry last))
1043 (if entry
1044 (progn
1045 (setq entry (car entry))
1046 (if (equal (buffer-substring (aref entry 2) (aref entry 3))
1047 (aref entry 6))
1048 (progn
1049 (or (aref entry 11)
1050 (save-excursion
1051 (calc-embedded-update entry 14 t nil)))
1052 (setq val (aref entry 11))
1053 (if (eq (car-safe val) 'calcFunc-evalto)
1054 (setq val (nth 2 val)))
1055 (if (eq (car-safe val) 'calcFunc-assign)
1056 (setq val (nth 2 val)))
60e52745 1057 (setq math-ms-args (cons (cons var val) math-ms-args)))
136211a9 1058 (calc-embedded-activate)
bf77c646 1059 (calc-embedded-eval-get-var var base))))))
136211a9
EZ
1060
1061
1062(defun calc-embedded-update (info which need-eval need-display
1063 &optional str entry old-val)
adb0a616 1064 (let* ((calc-embed-prev-modes nil)
136211a9
EZ
1065 (open-plain calc-embedded-open-plain)
1066 (close-plain calc-embedded-close-plain)
adb0a616 1067 (calc-embed-vars-used nil)
136211a9
EZ
1068 (evalled nil)
1069 (val (aref info 8))
1070 (old-eval (aref info 11)))
1071 (or old-val (setq old-val val))
1072 (if (eq (car-safe val) 'calcFunc-evalto)
1073 (setq need-display t))
1074 (unwind-protect
1075 (progn
1076 (set-buffer (aref info 1))
1077 (and which
1078 (calc-embedded-set-modes (aref info 15) (aref info 12)
1079 (aref info which)
1080 (if need-display 'full t)))
1081 (if (memq (car-safe val) '(calcFunc-evalto calcFunc-assign))
1082 (calc-embedded-find-vars val))
1083 (if need-eval
1084 (let ((calc-embedded-info info))
1085 (setq val (math-evaluate-expr val)
1086 evalled val)))
1087 (if (or (eq need-eval 'eval) (eq (car-safe val) 'calcFunc-evalto))
1088 (aset info 8 val))
1089 (aset info 9 nil)
adb0a616 1090 (aset info 10 calc-embed-vars-used)
136211a9
EZ
1091 (aset info 11 nil)
1092 (if (or need-display (eq (car-safe val) 'calcFunc-evalto))
1093 (let ((extra (if (eq calc-language 'big) 1 0)))
1094 (or entry (setq entry (list val 1 nil)))
1095 (or str (progn
1096 (setq str (let ((calc-line-numbering nil))
1097 (math-format-stack-value entry)))
1098 (if (eq calc-language 'big)
1099 (setq str (substring str 0 -1)))))
1100 (and calc-show-plain
1101 (setq str (concat open-plain
1102 (math-showing-full-precision
1103 (math-format-flat-expr val 0))
1104 close-plain
1105 str)))
1106 (save-excursion
1107 (calc-embedded-original-buffer t info)
1108 (or (equal str (aref info 6))
1109 (let ((delta (- (aref info 5) (aref info 3)))
954fc583 1110 (adjbot 0)
136211a9
EZ
1111 (buffer-read-only nil))
1112 (goto-char (aref info 2))
1113 (delete-region (point) (aref info 3))
1114 (and (> (nth 1 entry) (1+ extra))
1115 (aref info 7)
1116 (progn
136211a9 1117 (delete-horizontal-space)
954fc583
JB
1118 (if (looking-at "\n")
1119 ;; If there's a newline there, don't add one
1120 (insert "\n")
1121 (insert "\n\n")
1122 (delete-horizontal-space)
1123 (setq adjbot 1)
1124; (setq delta (1+ delta))
1125 (backward-char 1))))
136211a9 1126 (insert str)
954fc583 1127 (set-marker (aref info 3) (+ (point) adjbot))
136211a9
EZ
1128 (set-marker (aref info 5) (+ (point) delta))
1129 (aset info 6 str))))))
1130 (if (eq (car-safe val) 'calcFunc-evalto)
1131 (progn
1132 (setq evalled (nth 2 val)
1133 val (nth 1 val))))
1134 (if (eq (car-safe val) 'calcFunc-assign)
1135 (progn
1136 (aset info 9 (nth 1 val))
1137 (aset info 11 (or evalled
1138 (let ((calc-embedded-info info))
1139 (math-evaluate-expr (nth 2 val)))))
1140 (or (equal old-eval (aref info 11))
1141 (calc-embedded-var-change (nth 1 val) (aref info 0))))
1142 (if (eq (car-safe old-val) 'calcFunc-evalto)
1143 (setq old-val (nth 1 old-val)))
1144 (if (eq (car-safe old-val) 'calcFunc-assign)
1145 (calc-embedded-var-change (nth 1 old-val) (aref info 0)))))
1146 (set-buffer (aref info 1))
adb0a616
JB
1147 (while calc-embed-prev-modes
1148 (cond ((eq (car (car calc-embed-prev-modes)) 'the-language)
136211a9 1149 (if need-display
adb0a616
JB
1150 (calc-embedded-set-language (cdr (car calc-embed-prev-modes)))))
1151 ((eq (car (car calc-embed-prev-modes)) 'the-display-just)
136211a9 1152 (if need-display
adb0a616 1153 (calc-embedded-set-justify (cdr (car calc-embed-prev-modes)))))
136211a9 1154 (t
adb0a616
JB
1155 (set (car (car calc-embed-prev-modes))
1156 (cdr (car calc-embed-prev-modes)))))
b9bc92b4 1157 (setq calc-embed-prev-modes (cdr calc-embed-prev-modes))))))
136211a9
EZ
1158
1159
1160
1161
1162;;; These are hooks called by the main part of Calc.
1163
3132f345 1164(defvar calc-embedded-no-reselect nil)
136211a9
EZ
1165(defun calc-embedded-select-buffer ()
1166 (if (eq (current-buffer) (aref calc-embedded-info 0))
1167 (let ((info calc-embedded-info)
1168 horiz vert)
1169 (if (and (or (< (point) (aref info 4))
1170 (> (point) (aref info 5)))
1171 (not calc-embedded-no-reselect))
1172 (let ((calc-embedded-quiet t))
1173 (message "(Switching Calc Embedded mode to new formula.)")
1174 (calc-embedded nil)
1175 (calc-embedded nil)))
1176 (setq horiz (max (min (current-column) (- (point) (aref info 2))) 0)
1177 vert (if (<= (aref info 2) (point))
1178 (- (count-lines (aref info 2) (point))
1179 (if (bolp) 0 1))
1180 0))
1181 (set-buffer (aref info 1))
1182 (if calc-show-plain
1183 (if (= vert 0)
1184 (setq horiz 0)
1185 (setq vert (1- vert))))
1186 (calc-cursor-stack-index 1)
1187 (if calc-line-numbering
1188 (setq horiz (+ horiz 4)))
1189 (if (> vert 0)
1190 (forward-line vert))
1191 (forward-char (min horiz
1192 (- (point-max) (point)))))
bf77c646 1193 (calc-select-buffer)))
136211a9
EZ
1194
1195(defun calc-embedded-finish-command ()
1196 (let ((buf (current-buffer))
1197 horiz vert)
1198 (save-excursion
1199 (set-buffer (aref calc-embedded-info 1))
1200 (if (> (calc-stack-size) 0)
1201 (let ((pt (point))
1202 (col (current-column))
1203 (bol (bolp)))
1204 (calc-cursor-stack-index 0)
1205 (if (< pt (point))
1206 (progn
1207 (calc-cursor-stack-index 1)
1208 (if (>= pt (point))
1209 (progn
1210 (setq horiz (- col (if calc-line-numbering 4 0))
1211 vert (- (count-lines (point) pt)
1212 (if bol 0 1)))
1213 (if calc-show-plain
1214 (setq vert (max 1 (1+ vert))))))))
1215 (goto-char pt))))
1216 (if horiz
1217 (progn
1218 (set-buffer (aref calc-embedded-info 0))
1219 (goto-char (aref calc-embedded-info 2))
1220 (if (> vert 0)
1221 (forward-line vert))
1222 (forward-char (max horiz 0))
bf77c646 1223 (set-buffer buf)))))
136211a9
EZ
1224
1225(defun calc-embedded-stack-change ()
1226 (or calc-executing-macro
1227 (save-excursion
1228 (set-buffer (aref calc-embedded-info 1))
1229 (let* ((info calc-embedded-info)
1230 (extra-line (if (eq calc-language 'big) 1 0))
1231 (the-point (point))
1232 (empty (= (calc-stack-size) 0))
1233 (entry (if empty
1234 (list '(var empty var-empty) 1 nil)
1235 (calc-top 1 'entry)))
1236 (old-val (aref info 8))
1237 top bot str)
1238 (if empty
1239 (setq str "empty")
1240 (save-excursion
1241 (calc-cursor-stack-index 1)
1242 (setq top (point))
1243 (calc-cursor-stack-index 0)
1244 (setq bot (- (point) extra-line))
1245 (setq str (buffer-substring top (- bot 1))))
1246 (if calc-line-numbering
1247 (let ((pos 0))
1248 (setq str (substring str 4))
1249 (while (setq pos (string-match "\n...." str pos))
1250 (setq str (concat (substring str 0 (1+ pos))
1251 (substring str (+ pos 5)))
1252 pos (1+ pos))))))
1253 (calc-embedded-original-buffer t)
1254 (aset info 8 (car entry))
bf77c646 1255 (calc-embedded-update info 13 nil t str entry old-val)))))
136211a9
EZ
1256
1257(defun calc-embedded-mode-line-change ()
1258 (let ((str mode-line-buffer-identification))
1259 (save-excursion
1260 (calc-embedded-original-buffer t)
1261 (setq mode-line-buffer-identification str)
bf77c646 1262 (set-buffer-modified-p (buffer-modified-p)))))
136211a9
EZ
1263
1264(defun calc-embedded-modes-change (vars)
1265 (if (eq (car vars) 'calc-language) (setq vars '(the-language)))
1266 (if (eq (car vars) 'calc-display-just) (setq vars '(the-display-just)))
1267 (while (and vars
1268 (not (rassq (car vars) calc-embedded-mode-vars)))
1269 (setq vars (cdr vars)))
1270 (if (and vars calc-mode-save-mode (not (eq calc-mode-save-mode 'save)))
1271 (save-excursion
1272 (let* ((save-mode calc-mode-save-mode)
1273 (header (if (eq save-mode 'local)
1274 "calc-mode:"
1275 (format "calc-%s-mode:" save-mode)))
1276 (the-language (calc-embedded-language))
1277 (the-display-just (calc-embedded-justify))
1278 (values (mapcar 'symbol-value vars))
1279 (num (cond ((eq save-mode 'local) 12)
1280 ((eq save-mode 'edit) 13)
1281 ((eq save-mode 'perm) 14)
1282 (t nil)))
1283 base limit mname mlist)
1284 (calc-embedded-original-buffer t)
1285 (save-excursion
1286 (if (eq save-mode 'global)
1287 (setq base (point-max)
1288 limit (point-min)
1289 mlist calc-embedded-globals)
1290 (goto-char (aref calc-embedded-info 4))
1291 (beginning-of-line)
1292 (setq base (point)
1293 limit (max (- (point) 1000) (point-min))
1294 mlist (and num (aref calc-embedded-info num)))
1295 (and (re-search-backward
1296 (format "\\(%s\\)[^\001]*\\(%s\\)\\|\\[calc-defaults]"
1297 calc-embedded-open-formula
1298 calc-embedded-close-formula) limit t)
1299 (setq limit (point))))
1300 (while vars
1301 (goto-char base)
1302 (if (setq mname (car (rassq (car vars)
1303 calc-embedded-mode-vars)))
1304 (let ((buffer-read-only nil)
1305 (found (assq (car vars) mlist)))
1306 (if found
1307 (setcdr found (car values))
1308 (setq mlist (cons (cons (car vars) (car values)) mlist))
1309 (if num
1310 (aset calc-embedded-info num mlist)
1311 (if (eq save-mode 'global)
1312 (setq calc-embedded-globals mlist))))
1313 (if (re-search-backward
1314 (format "\\[%s *%s: *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]"
1315 header mname)
1316 limit t)
1317 (progn
1318 (goto-char (match-beginning 1))
1319 (delete-region (point) (match-end 1))
1320 (insert (prin1-to-string (car values))))
1321 (goto-char base)
1322 (insert-before-markers
1323 calc-embedded-open-mode
1324 "[" header " " mname ": "
1325 (prin1-to-string (car values)) "]"
1326 calc-embedded-close-mode))))
1327 (setq vars (cdr vars)
9e74b3fb 1328 values (cdr values))))))
5e2b0a66
JB
1329 (when (and vars (eq calc-mode-save-mode 'save))
1330 (calc-embedded-save-original-modes))))
136211a9
EZ
1331
1332(defun calc-embedded-var-change (var &optional buf)
1333 (if (symbolp var)
1334 (setq var (list 'var
1335 (if (string-match "\\`var-.+\\'"
1336 (symbol-name var))
1337 (intern (substring (symbol-name var) 4))
1338 var)
1339 var)))
1340 (save-excursion
1341 (let ((manual (not calc-auto-recompute))
1342 (bp calc-embedded-active)
1343 (first t))
1344 (if buf (setq bp (memq (assq buf bp) bp)))
1345 (while bp
1346 (let ((calc-embedded-no-reselect t)
1347 (p (and (buffer-name (car (car bp)))
1348 (cdr (car bp)))))
1349 (while p
1350 (if (assoc var (aref (car p) 10))
1351 (if manual
1352 (if (aref (car p) 11)
1353 (progn
1354 (aset (car p) 11 nil)
1355 (if (aref (car p) 9)
1356 (calc-embedded-var-change (aref (car p) 9)))))
1357 (set-buffer (aref (car p) 0))
1358 (if (equal (buffer-substring (aref (car p) 2)
1359 (aref (car p) 3))
1360 (aref (car p) 6))
1361 (let ((calc-embedded-info nil))
1362 (or calc-embedded-quiet
1363 (message "Recomputing..."))
1364 (setq first nil)
1365 (calc-wrapper
1366 (set-buffer (aref (car p) 0))
1367 (calc-embedded-update (car p) 14 t nil)))
1368 (setcdr (car bp) (delq (car p) (cdr (car bp))))
1369 (message
3132f345 1370 "(Tried to recompute but formula was changed or missing)"))))
136211a9
EZ
1371 (setq p (cdr p))))
1372 (setq bp (if buf nil (cdr bp))))
bf77c646 1373 (or first calc-embedded-quiet (message "")))))
136211a9 1374
937640a6
JB
1375(provide 'calc-embed)
1376
ab5796a9 1377;;; arch-tag: 1b8f311e-fba1-40d3-b8c3-1d6f68fd26fc
bf77c646 1378;;; calc-embed.el ends here