* src/eval.c (Fbind_symbol): New function.
[bpt/emacs.git] / lisp / calc / calc-embed.el
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1;;; calc-embed.el --- embed Calc in a buffer
2
ba318903 3;; Copyright (C) 1990-1993, 2001-2014 Free Software Foundation, Inc.
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4
5;; Author: David Gillespie <daveg@synaptics.com>
e8fff8ed 6;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com>
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7
8;; This file is part of GNU Emacs.
9
662c9c64 10;; GNU Emacs is free software: you can redistribute it and/or modify
7c671b23 11;; it under the terms of the GNU General Public License as published by
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12;; the Free Software Foundation, either version 3 of the License, or
13;; (at your option) any later version.
7c671b23 14
136211a9 15;; GNU Emacs is distributed in the hope that it will be useful,
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16;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18;; GNU General Public License for more details.
19
20;; You should have received a copy of the GNU General Public License
662c9c64 21;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
136211a9 22
3132f345 23;;; Commentary:
136211a9 24
3132f345 25;;; Code:
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26
27;; This file is autoloaded from calc-ext.el.
136211a9 28
937640a6 29(require 'calc-ext)
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30(require 'calc-macs)
31
fb2e993b 32;; Declare functions which are defined elsewhere.
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33(declare-function thing-at-point-looking-at "thingatpt"
34 (regexp &optional distance))
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35
36
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37(defun calc-show-plain (n)
38 (interactive "P")
39 (calc-wrapper
40 (calc-set-command-flag 'renum-stack)
41 (message (if (calc-change-mode 'calc-show-plain n nil t)
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42 "Including \"plain\" formulas in Calc Embedded mode"
43 "Omitting \"plain\" formulas in Calc Embedded mode"))))
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44
45
46(defvar calc-embedded-modes nil)
47(defvar calc-embedded-globals nil)
48(defvar calc-embedded-active nil)
3132f345 49(defvar calc-embedded-all-active nil)
136211a9 50(make-variable-buffer-local 'calc-embedded-all-active)
3132f345 51(defvar calc-embedded-some-active nil)
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52(make-variable-buffer-local 'calc-embedded-some-active)
53
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54;; The following variables are customizable and defined in calc.el.
55(defvar calc-embedded-announce-formula)
56(defvar calc-embedded-open-formula)
57(defvar calc-embedded-close-formula)
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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)
fb2e993b 64(defvar calc-embedded-word-regexp)
136211a9 65
ed80ebb6 66(defconst calc-embedded-mode-vars '(("twos-complement" . calc-twos-complement-mode)
802732d0 67 ("precision" . calc-internal-prec)
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68 ("word-size" . calc-word-size)
69 ("angles" . calc-angle-mode)
70 ("symbolic" . calc-symbolic-mode)
71 ("matrix" . calc-matrix-mode)
72 ("fractions" . calc-prefer-frac)
73 ("complex" . calc-complex-mode)
74 ("simplify" . calc-simplify-mode)
75 ("language" . the-language)
76 ("plain" . calc-show-plain)
77 ("break" . calc-line-breaking)
78 ("justify" . the-display-just)
79 ("left-label" . calc-left-label)
80 ("right-label" . calc-right-label)
81 ("radix" . calc-number-radix)
82 ("leading-zeros" . calc-leading-zeros)
83 ("grouping" . calc-group-digits)
84 ("group-char" . calc-group-char)
85 ("point-char" . calc-point-char)
86 ("frac-format" . calc-frac-format)
87 ("float-format" . calc-float-format)
88 ("complex-format" . calc-complex-format)
89 ("hms-format" . calc-hms-format)
90 ("date-format" . calc-date-format)
91 ("matrix-justify" . calc-matrix-just)
92 ("full-vectors" . calc-full-vectors)
93 ("break-vectors" . calc-break-vectors)
94 ("vector-commas" . calc-vector-commas)
95 ("vector-brackets" . calc-vector-brackets)
96 ("matrix-brackets" . calc-matrix-brackets)
97 ("strings" . calc-display-strings)
98))
99
100
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101;; Format of calc-embedded-info vector:
102;; 0 Editing buffer.
103;; 1 Calculator buffer.
104;; 2 Top of current formula (marker).
105;; 3 Bottom of current formula (marker).
106;; 4 Top of current formula's delimiters (marker).
107;; 5 Bottom of current formula's delimiters (marker).
108;; 6 String representation of current formula.
109;; 7 Non-nil if formula is embedded within a single line.
110;; 8 Internal representation of current formula.
111;; 9 Variable assigned by this formula, or nil.
112;; 10 List of variables upon which this formula depends.
113;; 11 Evaluated value of the formula, or nil.
114;; 12 Mode settings for current formula.
115;; 13 Local mode settings for current formula.
116;; 14 Permanent mode settings for current formula.
117;; 15 Global mode settings for editing buffer.
118
119
120;; calc-embedded-active is an a-list keyed on buffers; each cdr is a
121;; sorted list of calc-embedded-infos in that buffer. We do this
122;; rather than using buffer-local variables because the latter are
123;; thrown away when a buffer changes major modes.
136211a9 124
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125(defvar calc-embedded-original-modes nil
126 "The mode settings for Calc buffer when put in embedded mode.")
127
128(defun calc-embedded-save-original-modes ()
4c36be58 129 "Save the current Calc modes when entering embedded mode."
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130 (let ((calcbuf (save-excursion
131 (calc-create-buffer)
132 (current-buffer)))
133 lang modes)
134 (if calcbuf
135 (with-current-buffer calcbuf
136 (setq lang
137 (cons calc-language calc-language-option))
138 (setq modes
139 (list (cons 'calc-display-just
140 calc-display-just)
141 (cons 'calc-display-origin
142 calc-display-origin)))
143 (let ((v calc-embedded-mode-vars))
144 (while v
145 (let ((var (cdr (car v))))
146 (unless (memq var '(the-language the-display-just))
147 (setq modes
4c36be58 148 (cons (cons var (symbol-value var))
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149 modes))))
150 (setq v (cdr v))))
151 (setq calc-embedded-original-modes (cons lang modes)))
152 (setq calc-embedded-original-modes nil))))
153
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154(defun calc-embedded-preserve-modes ()
155 "Preserve the current modes when leaving embedded mode."
156 (interactive)
157 (if calc-embedded-info
158 (progn
159 (calc-embedded-save-original-modes)
160 (message "Current modes will be preserved when leaving embedded mode."))
161 (message "Not in embedded mode.")))
162
e42ed20c 163(defun calc-embedded-restore-original-modes (calcbuf)
9e74b3fb 164 "Restore the original Calc modes when leaving embedded mode."
e42ed20c 165 (let ((changed nil)
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166 (lang (car calc-embedded-original-modes))
167 (modes (cdr calc-embedded-original-modes)))
168 (if (and calcbuf calc-embedded-original-modes)
169 (with-current-buffer calcbuf
170 (unless (and
171 (equal calc-language (car lang))
172 (equal calc-language-option (cdr lang)))
173 (calc-set-language (car lang) (cdr lang))
174 (setq changed t))
175 (while modes
176 (let ((mode (car modes)))
177 (unless (equal (symbol-value (car mode)) (cdr mode))
178 (set (car mode) (cdr mode))
179 (setq changed t)))
180 (setq modes (cdr modes)))
181 (when changed
182 (calc-refresh)
183 (calc-set-mode-line))))
184 (setq calc-embedded-original-modes nil)))
185
4c36be58 186;; The variables calc-embed-outer-top, calc-embed-outer-bot,
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187;; calc-embed-top and calc-embed-bot are
188;; local to calc-do-embedded, calc-embedded-mark-formula,
189;; calc-embedded-duplicate, calc-embedded-new-formula and
190;; calc-embedded-make-info, but are used by calc-embedded-find-bounds,
191;; which is called (directly or indirectly) by the above functions.
192(defvar calc-embed-outer-top)
193(defvar calc-embed-outer-bot)
194(defvar calc-embed-top)
195(defvar calc-embed-bot)
136211a9 196
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197;; The variable calc-embed-arg is local to calc-do-embedded,
198;; calc-embedded-update-formula, calc-embedded-edit and
4c36be58 199;; calc-do-embedded-activate, but is used by
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200;; calc-embedded-make-info, which is called by the above
201;; functions.
202(defvar calc-embed-arg)
203
3132f345 204(defvar calc-embedded-quiet nil)
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205
206(defvar calc-embedded-firsttime)
207(defvar calc-embedded-firsttime-buf)
208(defvar calc-embedded-firsttime-formula)
209
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210;; The following is to take care of any minor modes which override
211;; a Calc command.
4c36be58 212(defvar calc-override-minor-modes-map
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213 (make-sparse-keymap)
214 "A list of keybindings that might be overwritten by minor modes.")
215
216;; Add any keys that might be overwritten here.
217(define-key calc-override-minor-modes-map "`" 'calc-edit)
218
4c36be58 219(defvar calc-override-minor-modes
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220 (cons t calc-override-minor-modes-map))
221
9ca6c34d 222(defun calc-do-embedded (calc-embed-arg end obeg oend)
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223 (if calc-embedded-info
224
225 ;; Turn embedded mode off or switch to a new buffer.
226 (cond ((eq (current-buffer) (aref calc-embedded-info 1))
227 (let ((calcbuf (current-buffer))
228 (buf (aref calc-embedded-info 0)))
229 (calc-embedded-original-buffer t)
230 (calc-embedded nil)
231 (switch-to-buffer calcbuf)))
232
233 ((eq (current-buffer) (aref calc-embedded-info 0))
234 (let* ((info calc-embedded-info)
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235 (mode calc-embedded-modes)
236 (calcbuf (aref calc-embedded-info 1)))
6df9b6d7 237 (with-current-buffer (aref info 1)
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238 (if (and (> (calc-stack-size) 0)
239 (equal (calc-top 1 'full) (aref info 8)))
240 (let ((calc-no-refresh-evaltos t))
241 (if (calc-top 1 'sel)
242 (calc-unselect 1))
243 (calc-embedded-set-modes
244 (aref info 15) (aref info 12) (aref info 14))
245 (let ((calc-embedded-info nil))
246 (calc-wrapper (calc-pop-stack))))
247 (calc-set-mode-line)))
248 (setq calc-embedded-info nil
249 mode-line-buffer-identification (car mode)
250 truncate-lines (nth 2 mode)
251 buffer-read-only nil)
252 (use-local-map (nth 1 mode))
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253 (setq minor-mode-overriding-map-alist
254 (remq calc-override-minor-modes minor-mode-overriding-map-alist))
136211a9 255 (set-buffer-modified-p (buffer-modified-p))
e42ed20c 256 (calc-embedded-restore-original-modes calcbuf)
136211a9 257 (or calc-embedded-quiet
48d33090 258 (message "Back to %s mode" (format-mode-line mode-name)))))
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259
260 (t
261 (if (buffer-name (aref calc-embedded-info 0))
6df9b6d7 262 (with-current-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))
4c36be58 283 (setq info
9ca6c34d 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)
6df9b6d7 403 (let ((val (with-current-buffer (aref info 1)
136211a9 404 (let ((calc-language nil)
2a6f048c 405 (math-expr-opers (math-standard-ops)))
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406 (math-read-expr str)))))
407 (if (eq (car-safe val) 'error)
408 (progn
409 (switch-to-buffer buf)
410 (goto-char (+ start (nth 1 val)))
411 (error (nth 2 val))))
412 (calc-embedded-original-buffer t info)
413 (aset info 8 val)
bf77c646 414 (calc-embedded-update info 14 t t))))
136211a9 415
2378f044 416;;;###autoload
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))
136211a9
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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))
136211a9
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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
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566 (insert "\n")
567 (setq new-top (point))
4c36be58 568 (insert-buffer-substring (current-buffer)
adb0a616
JB
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
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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
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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
EZ
660 (equal (symbol-value (car (car v))) value))
661 (progn
662 (setq changed t)
4c36be58 663 (if temp (setq calc-embed-prev-modes
adb0a616
JB
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))
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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
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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 812;; The variable calc-embed-vars-used is local to calc-embedded-make-info,
4c36be58 813;; calc-embedded-evaluate-expr and calc-embedded-update, but is
adb0a616
JB
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
4c36be58 818 calc-embed-top calc-embed-bot
adb0a616 819 calc-embed-outer-top calc-embed-outer-bot)
136211a9
EZ
820 (let* ((bufentry (assq (current-buffer) calc-embedded-active))
821 (found bufentry)
e4a5a307 822 (force (and fresh calc-embed-top (null (equal calc-embed-top '(t)))))
adb0a616 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))
fb2e993b 833 (newword (assoc major-mode calc-embedded-word-regexp-alist))
33739eb8 834 (newplain (assoc major-mode calc-embedded-open-close-plain-alist))
4c36be58 835 (newnewform
33739eb8
JB
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
fb2e993b
JB
847 (make-local-variable 'calc-embedded-word-regexp)
848 (setq calc-embedded-word-regexp (nth 1 newword)))
33739eb8
JB
849 (when newplain
850 (make-local-variable 'calc-embedded-open-plain)
851 (make-local-variable 'calc-embedded-close-plain)
852 (setq calc-embedded-open-plain (nth 0 (cdr newplain)))
853 (setq calc-embedded-close-plain (nth 1 (cdr newplain))))
854 (when newnewform
855 (make-local-variable 'calc-embedded-open-new-formula)
856 (make-local-variable 'calc-embedded-close-new-formula)
857 (setq calc-embedded-open-new-formula (nth 0 (cdr newnewform)))
858 (setq calc-embedded-close-new-formula (nth 1 (cdr newnewform))))
859 (when newmode
860 (make-local-variable 'calc-embedded-open-mode)
861 (make-local-variable 'calc-embedded-close-mode)
862 (setq calc-embedded-open-mode (nth 0 (cdr newmode)))
863 (setq calc-embedded-close-mode (nth 1 (cdr newmode)))))))
136211a9
EZ
864 (while (and (cdr found)
865 (> point (aref (car (cdr found)) 3)))
866 (setq found (cdr found)))
867 (if (and (cdr found)
868 (>= point (aref (nth 1 found) 2)))
33739eb8
JB
869 (setq info (nth 1 found))
870 (setq calc-embedded-firsttime-formula t)
136211a9
EZ
871 (setq info (make-vector 16 nil)
872 new-info t
873 fresh t)
874 (aset info 0 (current-buffer))
875 (aset info 1 (or cbuf (save-excursion
876 (calc-create-buffer)
877 (current-buffer)))))
4c36be58 878 (if (and
1705c023 879 (or (integerp calc-embed-top) (equal calc-embed-top '(4)))
4c36be58 880 (not calc-embed-bot))
adb0a616 881 ; started with a user-supplied argument
136211a9 882 (progn
1705c023
JB
883 (if (equal calc-embed-top '(4))
884 (progn
885 (aset info 2 (copy-marker (line-beginning-position)))
886 (aset info 3 (copy-marker (line-end-position))))
887 (if (= (setq calc-embed-arg (prefix-numeric-value calc-embed-arg)) 0)
c622c18e 888 (progn
1705c023
JB
889 (aset info 2 (copy-marker (region-beginning)))
890 (aset info 3 (copy-marker (region-end))))
891 (aset info (if (> calc-embed-arg 0) 2 3) (point-marker))
892 (if (> calc-embed-arg 0)
893 (progn
894 (forward-line (1- calc-embed-arg))
895 (end-of-line))
896 (forward-line (1+ calc-embed-arg)))
897 (aset info (if (> calc-embed-arg 0) 3 2) (point-marker))))
136211a9
EZ
898 (aset info 4 (copy-marker (aref info 2)))
899 (aset info 5 (copy-marker (aref info 3))))
900 (if (aref info 4)
adb0a616
JB
901 (setq calc-embed-top (aref info 2)
902 fixed calc-embed-top)
903 (if (consp calc-embed-top)
fb2e993b
JB
904 (progn
905 (require 'thingatpt)
906 (if (thing-at-point-looking-at calc-embedded-word-regexp)
907 (progn
908 (setq calc-embed-top (copy-marker (match-beginning 0)))
909 (setq calc-embed-bot (copy-marker (match-end 0)))
910 (setq calc-embed-outer-top calc-embed-top)
911 (setq calc-embed-outer-bot calc-embed-bot))
912 (setq calc-embed-top (point-marker))
913 (setq calc-embed-bot (point-marker))
914 (setq calc-embed-outer-top calc-embed-top)
915 (setq calc-embed-outer-bot calc-embed-bot)))
adb0a616 916 (or calc-embed-top
136211a9 917 (calc-embedded-find-bounds 'plain)))
adb0a616
JB
918 (aset info 2 (copy-marker (min calc-embed-top calc-embed-bot)))
919 (aset info 3 (copy-marker (max calc-embed-top calc-embed-bot)))
920 (aset info 4 (copy-marker (or calc-embed-outer-top (aref info 2))))
921 (aset info 5 (copy-marker (or calc-embed-outer-bot (aref info 3))))))
136211a9
EZ
922 (goto-char (aref info 2))
923 (if new-info
924 (progn
925 (or (bolp) (aset info 7 t))
926 (goto-char (aref info 3))
927 (or (bolp) (eolp) (aset info 7 t))))
928 (if fresh
929 (let ((modes (calc-embedded-find-modes)))
930 (aset info 12 (car modes))
931 (aset info 13 (nth 1 modes))
932 (aset info 14 (nth 2 modes))))
933 (aset info 15 calc-embedded-globals)
934 (setq str (buffer-substring (aref info 2) (aref info 3)))
935 (if (or force
936 (not (equal str (aref info 6))))
937 (if (and fixed (aref info 6))
938 (progn
939 (aset info 4 nil)
940 (calc-embedded-make-info point cbuf nil)
941 (setq new-info nil))
942 (let* ((open-plain calc-embedded-open-plain)
943 (close-plain calc-embedded-close-plain)
944 (pref-len (length open-plain))
adb0a616 945 (calc-embed-vars-used nil)
136211a9 946 suff-pos val temp)
6df9b6d7 947 (with-current-buffer (aref info 1)
136211a9
EZ
948 (calc-embedded-set-modes (aref info 15)
949 (aref info 12) (aref info 14))
950 (if (and (> (length str) pref-len)
951 (equal (substring str 0 pref-len) open-plain)
952 (setq suff-pos (string-match (regexp-quote close-plain)
953 str pref-len)))
954 (setq val (math-read-plain-expr
955 (substring str pref-len suff-pos)))
956 (if (string-match "[^ \t\n]" str)
957 (setq pref-len 0
a48b489e
JB
958 val (condition-case nil
959 (math-read-big-expr str)
960 (error (math-read-expr str))))
136211a9
EZ
961 (setq val nil))))
962 (if (eq (car-safe val) 'error)
963 (setq val (list 'error
964 (+ (aref info 2) pref-len (nth 1 val))
965 (nth 2 val))))
966 (aset info 6 str)
967 (aset info 8 val)
968 (setq temp val)
969 (if (eq (car-safe temp) 'calcFunc-evalto)
970 (setq temp (nth 1 temp))
971 (if (eq (car-safe temp) 'error)
972 (if new-info
973 (setq new-info nil)
974 (setcdr found (delq info (cdr found)))
975 (calc-embedded-active-state 'less))))
976 (aset info 9 (and (eq (car-safe temp) 'calcFunc-assign)
977 (nth 1 temp)))
978 (if (memq (car-safe val) '(calcFunc-evalto calcFunc-assign))
979 (calc-embedded-find-vars val))
adb0a616 980 (aset info 10 calc-embed-vars-used)
136211a9
EZ
981 (aset info 11 nil))))
982 (if new-info
983 (progn
984 (setcdr found (cons info (cdr found)))
985 (calc-embedded-active-state 'more)))
bf77c646 986 info))
136211a9
EZ
987
988(defun calc-embedded-find-vars (x)
989 (cond ((Math-primp x)
990 (and (eq (car-safe x) 'var)
adb0a616
JB
991 (not (assoc x calc-embed-vars-used))
992 (setq calc-embed-vars-used (cons (list x) calc-embed-vars-used))))
136211a9
EZ
993 ((eq (car x) 'calcFunc-evalto)
994 (calc-embedded-find-vars (nth 1 x)))
995 ((eq (car x) 'calcFunc-assign)
996 (calc-embedded-find-vars (nth 2 x)))
997 (t
998 (and (eq (car x) 'calcFunc-subscr)
999 (eq (car-safe (nth 1 x)) 'var)
1000 (Math-primp (nth 2 x))
adb0a616
JB
1001 (not (assoc x calc-embed-vars-used))
1002 (setq calc-embed-vars-used (cons (list x) calc-embed-vars-used)))
136211a9 1003 (while (setq x (cdr x))
bf77c646 1004 (calc-embedded-find-vars (car x))))))
136211a9 1005
60e52745 1006(defvar math-ms-args)
136211a9 1007(defun calc-embedded-evaluate-expr (x)
adb0a616
JB
1008 (let ((calc-embed-vars-used (aref calc-embedded-info 10)))
1009 (or calc-embed-vars-used (calc-embedded-find-vars x))
1010 (if calc-embed-vars-used
136211a9 1011 (let ((active (assq (aref calc-embedded-info 0) calc-embedded-active))
60e52745 1012 (math-ms-args nil))
136211a9
EZ
1013 (save-excursion
1014 (calc-embedded-original-buffer t)
1015 (or active
1016 (progn
1017 (calc-embedded-activate)
1018 (setq active (assq (aref calc-embedded-info 0)
1019 calc-embedded-active))))
adb0a616
JB
1020 (while calc-embed-vars-used
1021 (calc-embedded-eval-get-var (car (car calc-embed-vars-used)) active)
1022 (setq calc-embed-vars-used (cdr calc-embed-vars-used))))
136211a9 1023 (calc-embedded-subst x))
bf77c646 1024 (calc-normalize (math-evaluate-expr-rec x)))))
136211a9
EZ
1025
1026(defun calc-embedded-subst (x)
1027 (if (and (eq (car-safe x) 'calcFunc-evalto) (cdr x))
1028 (let ((rhs (calc-embedded-subst (nth 1 x))))
1029 (list 'calcFunc-evalto
1030 (nth 1 x)
1031 (if (eq (car-safe rhs) 'calcFunc-assign) (nth 2 rhs) rhs)))
1032 (if (and (eq (car-safe x) 'calcFunc-assign) (= (length x) 3))
1033 (list 'calcFunc-assign
1034 (nth 1 x)
1035 (calc-embedded-subst (nth 2 x)))
60e52745 1036 (calc-normalize (math-evaluate-expr-rec (math-multi-subst-rec x))))))
136211a9
EZ
1037
1038(defun calc-embedded-eval-get-var (var base)
1039 (let ((entry base)
1040 (point (aref calc-embedded-info 2))
1041 (last nil)
1042 val)
1043 (while (and (setq entry (cdr entry))
1044 (or (not (equal var (aref (car entry) 9)))
1045 (and (> point (aref (car entry) 3))
1046 (setq last entry)))))
1047 (if last
1048 (setq entry last))
1049 (if entry
1050 (progn
1051 (setq entry (car entry))
1052 (if (equal (buffer-substring (aref entry 2) (aref entry 3))
1053 (aref entry 6))
1054 (progn
1055 (or (aref entry 11)
1056 (save-excursion
1057 (calc-embedded-update entry 14 t nil)))
1058 (setq val (aref entry 11))
1059 (if (eq (car-safe val) 'calcFunc-evalto)
1060 (setq val (nth 2 val)))
1061 (if (eq (car-safe val) 'calcFunc-assign)
1062 (setq val (nth 2 val)))
60e52745 1063 (setq math-ms-args (cons (cons var val) math-ms-args)))
136211a9 1064 (calc-embedded-activate)
bf77c646 1065 (calc-embedded-eval-get-var var base))))))
136211a9
EZ
1066
1067
1068(defun calc-embedded-update (info which need-eval need-display
1069 &optional str entry old-val)
adb0a616 1070 (let* ((calc-embed-prev-modes nil)
136211a9
EZ
1071 (open-plain calc-embedded-open-plain)
1072 (close-plain calc-embedded-close-plain)
adb0a616 1073 (calc-embed-vars-used nil)
136211a9
EZ
1074 (evalled nil)
1075 (val (aref info 8))
1076 (old-eval (aref info 11)))
1077 (or old-val (setq old-val val))
1078 (if (eq (car-safe val) 'calcFunc-evalto)
1079 (setq need-display t))
1080 (unwind-protect
1081 (progn
1082 (set-buffer (aref info 1))
1083 (and which
1084 (calc-embedded-set-modes (aref info 15) (aref info 12)
1085 (aref info which)
1086 (if need-display 'full t)))
1087 (if (memq (car-safe val) '(calcFunc-evalto calcFunc-assign))
1088 (calc-embedded-find-vars val))
1089 (if need-eval
1090 (let ((calc-embedded-info info))
1091 (setq val (math-evaluate-expr val)
1092 evalled val)))
1093 (if (or (eq need-eval 'eval) (eq (car-safe val) 'calcFunc-evalto))
1094 (aset info 8 val))
1095 (aset info 9 nil)
adb0a616 1096 (aset info 10 calc-embed-vars-used)
136211a9
EZ
1097 (aset info 11 nil)
1098 (if (or need-display (eq (car-safe val) 'calcFunc-evalto))
1099 (let ((extra (if (eq calc-language 'big) 1 0)))
1100 (or entry (setq entry (list val 1 nil)))
1101 (or str (progn
1102 (setq str (let ((calc-line-numbering nil))
1103 (math-format-stack-value entry)))
1104 (if (eq calc-language 'big)
1105 (setq str (substring str 0 -1)))))
1106 (and calc-show-plain
1107 (setq str (concat open-plain
1108 (math-showing-full-precision
1109 (math-format-flat-expr val 0))
1110 close-plain
1111 str)))
1112 (save-excursion
1113 (calc-embedded-original-buffer t info)
1114 (or (equal str (aref info 6))
1115 (let ((delta (- (aref info 5) (aref info 3)))
954fc583 1116 (adjbot 0)
136211a9
EZ
1117 (buffer-read-only nil))
1118 (goto-char (aref info 2))
1119 (delete-region (point) (aref info 3))
1120 (and (> (nth 1 entry) (1+ extra))
1121 (aref info 7)
1122 (progn
136211a9 1123 (delete-horizontal-space)
954fc583
JB
1124 (if (looking-at "\n")
1125 ;; If there's a newline there, don't add one
1126 (insert "\n")
1127 (insert "\n\n")
1128 (delete-horizontal-space)
1129 (setq adjbot 1)
1130; (setq delta (1+ delta))
1131 (backward-char 1))))
136211a9 1132 (insert str)
954fc583 1133 (set-marker (aref info 3) (+ (point) adjbot))
136211a9
EZ
1134 (set-marker (aref info 5) (+ (point) delta))
1135 (aset info 6 str))))))
1136 (if (eq (car-safe val) 'calcFunc-evalto)
1137 (progn
1138 (setq evalled (nth 2 val)
1139 val (nth 1 val))))
1140 (if (eq (car-safe val) 'calcFunc-assign)
1141 (progn
1142 (aset info 9 (nth 1 val))
1143 (aset info 11 (or evalled
1144 (let ((calc-embedded-info info))
1145 (math-evaluate-expr (nth 2 val)))))
1146 (or (equal old-eval (aref info 11))
1147 (calc-embedded-var-change (nth 1 val) (aref info 0))))
1148 (if (eq (car-safe old-val) 'calcFunc-evalto)
1149 (setq old-val (nth 1 old-val)))
1150 (if (eq (car-safe old-val) 'calcFunc-assign)
1151 (calc-embedded-var-change (nth 1 old-val) (aref info 0)))))
1152 (set-buffer (aref info 1))
adb0a616
JB
1153 (while calc-embed-prev-modes
1154 (cond ((eq (car (car calc-embed-prev-modes)) 'the-language)
136211a9 1155 (if need-display
adb0a616
JB
1156 (calc-embedded-set-language (cdr (car calc-embed-prev-modes)))))
1157 ((eq (car (car calc-embed-prev-modes)) 'the-display-just)
136211a9 1158 (if need-display
adb0a616 1159 (calc-embedded-set-justify (cdr (car calc-embed-prev-modes)))))
136211a9 1160 (t
4c36be58 1161 (set (car (car calc-embed-prev-modes))
adb0a616 1162 (cdr (car calc-embed-prev-modes)))))
b9bc92b4 1163 (setq calc-embed-prev-modes (cdr calc-embed-prev-modes))))))
136211a9
EZ
1164
1165
1166
1167
1168;;; These are hooks called by the main part of Calc.
1169
3132f345 1170(defvar calc-embedded-no-reselect nil)
136211a9
EZ
1171(defun calc-embedded-select-buffer ()
1172 (if (eq (current-buffer) (aref calc-embedded-info 0))
1173 (let ((info calc-embedded-info)
1174 horiz vert)
1175 (if (and (or (< (point) (aref info 4))
1176 (> (point) (aref info 5)))
1177 (not calc-embedded-no-reselect))
1178 (let ((calc-embedded-quiet t))
1179 (message "(Switching Calc Embedded mode to new formula.)")
1180 (calc-embedded nil)
1181 (calc-embedded nil)))
1182 (setq horiz (max (min (current-column) (- (point) (aref info 2))) 0)
1183 vert (if (<= (aref info 2) (point))
1184 (- (count-lines (aref info 2) (point))
1185 (if (bolp) 0 1))
1186 0))
1187 (set-buffer (aref info 1))
1188 (if calc-show-plain
1189 (if (= vert 0)
1190 (setq horiz 0)
1191 (setq vert (1- vert))))
1192 (calc-cursor-stack-index 1)
1193 (if calc-line-numbering
1194 (setq horiz (+ horiz 4)))
1195 (if (> vert 0)
1196 (forward-line vert))
1197 (forward-char (min horiz
1198 (- (point-max) (point)))))
bf77c646 1199 (calc-select-buffer)))
136211a9
EZ
1200
1201(defun calc-embedded-finish-command ()
1202 (let ((buf (current-buffer))
1203 horiz vert)
6df9b6d7 1204 (with-current-buffer (aref calc-embedded-info 1)
136211a9
EZ
1205 (if (> (calc-stack-size) 0)
1206 (let ((pt (point))
1207 (col (current-column))
1208 (bol (bolp)))
1209 (calc-cursor-stack-index 0)
1210 (if (< pt (point))
1211 (progn
1212 (calc-cursor-stack-index 1)
1213 (if (>= pt (point))
1214 (progn
1215 (setq horiz (- col (if calc-line-numbering 4 0))
1216 vert (- (count-lines (point) pt)
1217 (if bol 0 1)))
1218 (if calc-show-plain
1219 (setq vert (max 1 (1+ vert))))))))
1220 (goto-char pt))))
1221 (if horiz
1222 (progn
1223 (set-buffer (aref calc-embedded-info 0))
1224 (goto-char (aref calc-embedded-info 2))
1225 (if (> vert 0)
1226 (forward-line vert))
1227 (forward-char (max horiz 0))
bf77c646 1228 (set-buffer buf)))))
136211a9
EZ
1229
1230(defun calc-embedded-stack-change ()
1231 (or calc-executing-macro
6df9b6d7 1232 (with-current-buffer (aref calc-embedded-info 1)
136211a9
EZ
1233 (let* ((info calc-embedded-info)
1234 (extra-line (if (eq calc-language 'big) 1 0))
1235 (the-point (point))
1236 (empty (= (calc-stack-size) 0))
1237 (entry (if empty
1238 (list '(var empty var-empty) 1 nil)
1239 (calc-top 1 'entry)))
1240 (old-val (aref info 8))
1241 top bot str)
1242 (if empty
1243 (setq str "empty")
1244 (save-excursion
1245 (calc-cursor-stack-index 1)
1246 (setq top (point))
1247 (calc-cursor-stack-index 0)
1248 (setq bot (- (point) extra-line))
1249 (setq str (buffer-substring top (- bot 1))))
1250 (if calc-line-numbering
1251 (let ((pos 0))
1252 (setq str (substring str 4))
1253 (while (setq pos (string-match "\n...." str pos))
1254 (setq str (concat (substring str 0 (1+ pos))
1255 (substring str (+ pos 5)))
1256 pos (1+ pos))))))
1257 (calc-embedded-original-buffer t)
1258 (aset info 8 (car entry))
bf77c646 1259 (calc-embedded-update info 13 nil t str entry old-val)))))
136211a9
EZ
1260
1261(defun calc-embedded-mode-line-change ()
1262 (let ((str mode-line-buffer-identification))
1263 (save-excursion
1264 (calc-embedded-original-buffer t)
1265 (setq mode-line-buffer-identification str)
bf77c646 1266 (set-buffer-modified-p (buffer-modified-p)))))
136211a9
EZ
1267
1268(defun calc-embedded-modes-change (vars)
1269 (if (eq (car vars) 'calc-language) (setq vars '(the-language)))
1270 (if (eq (car vars) 'calc-display-just) (setq vars '(the-display-just)))
1271 (while (and vars
1272 (not (rassq (car vars) calc-embedded-mode-vars)))
1273 (setq vars (cdr vars)))
1274 (if (and vars calc-mode-save-mode (not (eq calc-mode-save-mode 'save)))
1275 (save-excursion
1276 (let* ((save-mode calc-mode-save-mode)
1277 (header (if (eq save-mode 'local)
1278 "calc-mode:"
1279 (format "calc-%s-mode:" save-mode)))
1280 (the-language (calc-embedded-language))
1281 (the-display-just (calc-embedded-justify))
1282 (values (mapcar 'symbol-value vars))
1283 (num (cond ((eq save-mode 'local) 12)
1284 ((eq save-mode 'edit) 13)
1285 ((eq save-mode 'perm) 14)
1286 (t nil)))
1287 base limit mname mlist)
1288 (calc-embedded-original-buffer t)
1289 (save-excursion
1290 (if (eq save-mode 'global)
1291 (setq base (point-max)
1292 limit (point-min)
1293 mlist calc-embedded-globals)
1294 (goto-char (aref calc-embedded-info 4))
1295 (beginning-of-line)
1296 (setq base (point)
1297 limit (max (- (point) 1000) (point-min))
1298 mlist (and num (aref calc-embedded-info num)))
1299 (and (re-search-backward
1300 (format "\\(%s\\)[^\001]*\\(%s\\)\\|\\[calc-defaults]"
1301 calc-embedded-open-formula
1302 calc-embedded-close-formula) limit t)
1303 (setq limit (point))))
1304 (while vars
1305 (goto-char base)
1306 (if (setq mname (car (rassq (car vars)
1307 calc-embedded-mode-vars)))
1308 (let ((buffer-read-only nil)
1309 (found (assq (car vars) mlist)))
1310 (if found
1311 (setcdr found (car values))
1312 (setq mlist (cons (cons (car vars) (car values)) mlist))
1313 (if num
1314 (aset calc-embedded-info num mlist)
1315 (if (eq save-mode 'global)
1316 (setq calc-embedded-globals mlist))))
1317 (if (re-search-backward
1318 (format "\\[%s *%s: *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]"
1319 header mname)
1320 limit t)
1321 (progn
1322 (goto-char (match-beginning 1))
1323 (delete-region (point) (match-end 1))
1324 (insert (prin1-to-string (car values))))
1325 (goto-char base)
1326 (insert-before-markers
1327 calc-embedded-open-mode
1328 "[" header " " mname ": "
1329 (prin1-to-string (car values)) "]"
1330 calc-embedded-close-mode))))
1331 (setq vars (cdr vars)
9e74b3fb 1332 values (cdr values))))))
5e2b0a66
JB
1333 (when (and vars (eq calc-mode-save-mode 'save))
1334 (calc-embedded-save-original-modes))))
136211a9
EZ
1335
1336(defun calc-embedded-var-change (var &optional buf)
1337 (if (symbolp var)
1338 (setq var (list 'var
1339 (if (string-match "\\`var-.+\\'"
1340 (symbol-name var))
1341 (intern (substring (symbol-name var) 4))
1342 var)
1343 var)))
1344 (save-excursion
1345 (let ((manual (not calc-auto-recompute))
1346 (bp calc-embedded-active)
1347 (first t))
1348 (if buf (setq bp (memq (assq buf bp) bp)))
1349 (while bp
1350 (let ((calc-embedded-no-reselect t)
1351 (p (and (buffer-name (car (car bp)))
1352 (cdr (car bp)))))
1353 (while p
1354 (if (assoc var (aref (car p) 10))
1355 (if manual
1356 (if (aref (car p) 11)
1357 (progn
1358 (aset (car p) 11 nil)
1359 (if (aref (car p) 9)
1360 (calc-embedded-var-change (aref (car p) 9)))))
1361 (set-buffer (aref (car p) 0))
1362 (if (equal (buffer-substring (aref (car p) 2)
1363 (aref (car p) 3))
1364 (aref (car p) 6))
1365 (let ((calc-embedded-info nil))
1366 (or calc-embedded-quiet
1367 (message "Recomputing..."))
1368 (setq first nil)
1369 (calc-wrapper
1370 (set-buffer (aref (car p) 0))
1371 (calc-embedded-update (car p) 14 t nil)))
1372 (setcdr (car bp) (delq (car p) (cdr (car bp))))
1373 (message
3132f345 1374 "(Tried to recompute but formula was changed or missing)"))))
136211a9
EZ
1375 (setq p (cdr p))))
1376 (setq bp (if buf nil (cdr bp))))
bf77c646 1377 (or first calc-embedded-quiet (message "")))))
136211a9 1378
937640a6
JB
1379(provide 'calc-embed)
1380
2378f044
SM
1381;; Local variables:
1382;; generated-autoload-file: "calc-loaddefs.el"
1383;; End:
1384
bf77c646 1385;;; calc-embed.el ends here