lisp/calc/calc-store.el

   1 ;;; calc-store.el --- value storage functions for Calc
   2
   3 ;; Copyright (C) 1990-1993, 2001-2017 Free Software Foundation, Inc.
   4
   5 ;; Author: David Gillespie <daveg@synaptics.com>
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software: you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation, either version 3 of the License, or
  12 ;; (at your option) any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
  21
  22 ;;; Commentary:
  23
  24 ;;; Code:
  25
  26 ;; This file is autoloaded from calc-ext.el.
  27
  28 (require 'calc-ext)
  29 (require 'calc-macs)
  30
  31 ;;; Memory commands.
  32
  33 (defvar calc-store-keep nil)
  34 (defun calc-store (&optional var)
  35   (interactive)
  36   (let ((calc-store-keep t))
  37     (calc-store-into var)))
  38
  39 (defvar calc-given-value-flag nil)
  40 (defvar calc-given-value)
  41
  42 (defun calc-store-into (&optional var)
  43   (interactive)
  44   (calc-wrapper
  45    (let ((calc-given-value nil)
  46          (calc-given-value-flag 1))
  47      (or var (setq var (calc-read-var-name "Store: " t)))
  48      (if var
  49          (let ((found (assq var '( ( + . calc-store-plus )
  50                                    ( - . calc-store-minus )
  51                                    ( * . calc-store-times )
  52                                    ( / . calc-store-div )
  53                                    ( ^ . calc-store-power )
  54                                    ( | . calc-store-concat ) ))))
  55            (if found
  56                (funcall (cdr found))
  57              (let ((msg
  58                     (calc-store-value var (or calc-given-value (calc-top 1))
  59                                       "" calc-given-value-flag)))
  60                (message "Stored to variable \"%s\"%s"
  61                         (calc-var-name var) msg))))
  62        (setq var (calc-is-assignments (calc-top 1)))
  63        (if var
  64            (while var
  65              (let ((msg
  66                     (calc-store-value (car (car var)) (cdr (car var))
  67                                       (if (not (cdr var)) "")
  68                                       (if (not (cdr var)) 1))))
  69                (message "Stored to variable \"%s\"%s"
  70                         (calc-var-name (car (car var))) msg))
  71              (setq var (cdr var))))))))
  72
  73 (defun calc-store-plus (&optional var)
  74   (interactive)
  75   (calc-store-binary var "+" '+))
  76
  77 (defun calc-store-minus (&optional var)
  78   (interactive)
  79   (calc-store-binary var "-" '-))
  80
  81 (defun calc-store-times (&optional var)
  82   (interactive)
  83   (calc-store-binary var "*" '*))
  84
  85 (defun calc-store-div (&optional var)
  86   (interactive)
  87   (calc-store-binary var "/" '/))
  88
  89 (defun calc-store-power (&optional var)
  90   (interactive)
  91   (calc-store-binary var "^" '^))
  92
  93 (defun calc-store-concat (&optional var)
  94   (interactive)
  95   (calc-store-binary var "|" '|))
  96
  97 (defun calc-store-neg (n &optional var)
  98   (interactive "p")
  99   (calc-store-binary var "n" '/ (- n)))
 100
 101 (defun calc-store-inv (n &optional var)
 102   (interactive "p")
 103   (calc-store-binary var "&" '^ (- n)))
 104
 105 (defun calc-store-incr (n &optional var)
 106   (interactive "p")
 107   (calc-store-binary var "n" '- (- n)))
 108
 109 (defun calc-store-decr (n &optional var)
 110   (interactive "p")
 111   (calc-store-binary var "n" '- n))
 112
 113 (defun calc-store-value (var value tag &optional pop)
 114   (let ((msg ""))
 115     (if var
 116         (let ((old (calc-var-value var)))
 117           (set var value)
 118           (if pop (or calc-store-keep (calc-pop-stack pop)))
 119           (calc-record-undo (list 'store (symbol-name var) old))
 120           (if tag
 121               (let ((calc-full-trail-vectors nil))
 122                 (calc-record value (format ">%s%s" tag (calc-var-name var)))))
 123           (cond
 124            ((and (memq var '(var-e var-i var-pi var-phi var-gamma))
 125                  (eq (car-safe old) 'special-const))
 126             (setq msg (format " (Note: Built-in definition of %s has been lost)"
 127                               (calc-var-name var))))
 128            ((and (memq var '(var-inf var-uinf var-nan))
 129                  (null old))
 130             (setq msg (format " (Note: %s has built-in meanings which may interfere)"
 131                               (calc-var-name var)))))
 132           (calc-refresh-evaltos var)))
 133     msg))
 134
 135 (defun calc-var-name (var)
 136   (if (symbolp var) (setq var (symbol-name var)))
 137   (if (string-match "\\`var-." var)
 138       (substring var 4)
 139     var))
 140
 141 (defun calc-store-binary (var tag func &optional val)
 142   (calc-wrapper
 143    (let ((calc-simplify-mode (if (eq calc-simplify-mode 'none)
 144                                  'num calc-simplify-mode))
 145          (value (or val (calc-top 1))))
 146      (or var (setq var (calc-read-var-name (format "Store %s: " tag))))
 147      (if var
 148          (let ((old (calc-var-value var)))
 149            (if (eq (car-safe old) 'special-const)
 150                (error "\"%s\" is a special constant" (calc-var-name var)))
 151            (if (not old)
 152                (if (memq var '(var-inf var-uinf var-nan))
 153                    (error "\"%s\" is a special variable" (calc-var-name var))
 154                  (error "No such variable: \"%s\"" (calc-var-name var))))
 155            (if (stringp old)
 156                (setq old (math-read-expr old)))
 157            (if (eq (car-safe old) 'error)
 158                (error "Bad format in variable contents: %s" (nth 2 old)))
 159            (calc-store-value var
 160                              (calc-normalize (if (calc-is-inverse)
 161                                                  (list func value old)
 162                                                (list func old value)))
 163                              tag (and (not val) 1))
 164            (message "Variable \"%s\" changed" (calc-var-name var)))))))
 165
 166 (defvar calc-var-name-map nil "Keymap for reading Calc variable names.")
 167 (if calc-var-name-map
 168     ()
 169   (setq calc-var-name-map (copy-keymap minibuffer-local-completion-map))
 170   (define-key calc-var-name-map " " 'self-insert-command)
 171   (mapc (function
 172          (lambda (x)
 173           (define-key calc-var-name-map (char-to-string x)
 174             'calcVar-digit)))
 175         "0123456789")
 176   (mapc (function
 177          (lambda (x)
 178           (define-key calc-var-name-map (char-to-string x)
 179             'calcVar-oper)))
 180         "+-*/^|"))
 181
 182 (defvar calc-store-opers)
 183
 184 (defvar calc-read-var-name-history nil
 185   "History for reading variable names.")
 186
 187 (defun calc-read-var-name (prompt &optional calc-store-opers)
 188   (setq calc-given-value nil
 189         calc-aborted-prefix nil)
 190   (let ((var (concat
 191               "var-"
 192               (let ((minibuffer-completion-table
 193                      (mapcar (lambda (x) (substring x 4))
 194                              (all-completions "var-" obarray)))
 195                     (minibuffer-completion-predicate
 196                      (lambda (x) (boundp (intern (concat "var-" x)))))
 197                     (minibuffer-completion-confirm t))
 198                 (read-from-minibuffer
 199                  prompt nil calc-var-name-map nil
 200                  'calc-read-var-name-history)))))
 201     (setq calc-aborted-prefix "")
 202     (and (not (equal var "var-"))
 203          (if (string-match "\\`\\([-a-zA-Zα-ωΑ-Ω0-9]+\\) *:?=" var)
 204              (if (null calc-given-value-flag)
 205                  (error "Assignment is not allowed in this command")
 206                (let ((svar (intern (substring var 0 (match-end 1)))))
 207                  (setq calc-given-value-flag 0
 208                        calc-given-value (math-read-expr
 209                                          (substring var (match-end 0))))
 210                  (if (eq (car-safe calc-given-value) 'error)
 211                      (error "Bad format: %s" (nth 2 calc-given-value)))
 212                  (setq calc-given-value (math-evaluate-expr calc-given-value))
 213                  svar))
 214            (intern var)))))
 215
 216 (defun calcVar-digit ()
 217   (interactive)
 218   (if (calc-minibuffer-contains "\\'")
 219       (if (eq calc-store-opers 0)
 220           (beep)
 221         (insert "q")
 222         (self-insert-and-exit))
 223     (self-insert-command 1)))
 224
 225 (defun calcVar-oper ()
 226   (interactive)
 227   (if (and (eq calc-store-opers t)
 228            (calc-minibuffer-contains "\\'"))
 229       (progn
 230         (erase-buffer)
 231         (self-insert-and-exit))
 232     (self-insert-command 1)))
 233
 234 (defun calc-store-map (&optional oper var)
 235   (interactive)
 236   (calc-wrapper
 237    (let* ((calc-dollar-values (mapcar #'calc-get-stack-element
 238                                       (nthcdr calc-stack-top calc-stack)))
 239           (calc-dollar-used 0)
 240           (oper (or oper (calc-get-operator "Store Mapping")))
 241           (nargs (car oper)))
 242      (or var (setq var (calc-read-var-name (format "Store Mapping %s: "
 243                                                    (nth 2 oper)))))
 244      (if var
 245          (let ((old (calc-var-value var)))
 246            (if (eq (car-safe old) 'special-const)
 247                (error "\"%s\" is a special constant" (calc-var-name var)))
 248            (if (not old)
 249                (if (memq var '(var-inf var-uinf var-nan))
 250                    (error "\"%s\" is a special variable" (calc-var-name var))
 251                  (error "No such variable: \"%s\"" (calc-var-name var))))
 252            (let ((calc-simplify-mode (if (eq calc-simplify-mode 'none)
 253                                          'num calc-simplify-mode))
 254                  (values (and (> nargs 1)
 255                               (calc-top-list (1- nargs) (1+ calc-dollar-used)))))
 256              (message "Working...")
 257              (calc-set-command-flag 'clear-message)
 258              (if (stringp old)
 259                  (setq old (math-read-expr old)))
 260              (if (eq (car-safe old) 'error)
 261                  (error "Bad format in variable contents: %s" (nth 2 old)))
 262              (setq values (if (calc-is-inverse)
 263                               (append values (list old))
 264                             (append (list old) values)))
 265              (calc-store-value var
 266                                (calc-normalize (cons (nth 1 oper) values))
 267                                (nth 2 oper)
 268                                (+ calc-dollar-used (1- nargs)))
 269              (message "Variable \"%s\" changed" (calc-var-name var))))))))
 270
 271
 272 (defun calc-store-exchange (&optional var)
 273   (interactive)
 274   (calc-wrapper
 275    (let ((calc-given-value nil)
 276          (calc-given-value-flag 1)
 277          top)
 278      (or var (setq var (calc-read-var-name "Exchange with: ")))
 279      (if var
 280          (let ((value (calc-var-value var)))
 281            (if (eq (car-safe value) 'special-const)
 282                (error "\"%s\" is a special constant" (calc-var-name var)))
 283            (if (not value)
 284                (if (memq var '(var-inf var-uinf var-nan))
 285                    (error "\"%s\" is a special variable" (calc-var-name var))
 286                  (error "No such variable: \"%s\"" (calc-var-name var))))
 287            (setq top (or calc-given-value (calc-top 1)))
 288            (calc-store-value var top nil)
 289            (calc-pop-push-record calc-given-value-flag
 290                                  (concat "<>" (calc-var-name var)) value))))))
 291
 292 (defun calc-unstore (&optional var)
 293   (interactive)
 294   (calc-wrapper
 295    (or var (setq var (calc-read-var-name "Unstore: ")))
 296    (if var
 297        (progn
 298          (and (memq var '(var-e var-i var-pi var-phi var-gamma))
 299               (eq (car-safe (calc-var-value var)) 'special-const)
 300               (message "(Note: Built-in definition of %s has been lost)" var))
 301          (if (and (boundp var) (symbol-value var))
 302              (message "Unstored variable \"%s\"" (calc-var-name var))
 303            (message "Variable \"%s\" remains unstored" (calc-var-name var)))
 304          (makunbound var)
 305          (calc-refresh-evaltos var)))))
 306
 307 (defun calc-let (&optional var)
 308   (interactive)
 309   (calc-wrapper
 310    (let* ((calc-given-value nil)
 311           (calc-given-value-flag 1)
 312           thing value)
 313      (or var (setq var (calc-read-var-name "Let variable: ")))
 314      (if calc-given-value
 315          (setq value calc-given-value
 316                thing (calc-top 1))
 317        (setq value (calc-top 1)
 318              thing (calc-top 2)))
 319      (setq var (if var
 320                    (list (cons var value))
 321                  (calc-is-assignments value)))
 322      (if var
 323          (calc-pop-push-record
 324           (1+ calc-given-value-flag)
 325           (concat "=" (calc-var-name (car (car var))))
 326           (let ((saved-val (mapcar (function
 327                                     (lambda (v)
 328                                       (and (boundp (car v))
 329                                            (symbol-value (car v)))))
 330                                    var)))
 331             (unwind-protect
 332                 (let ((vv var))
 333                   (while vv
 334                     (set (car (car vv)) (calc-normalize (cdr (car vv))))
 335                     (calc-refresh-evaltos (car (car vv)))
 336                     (setq vv (cdr vv)))
 337                   (math-evaluate-expr thing))
 338               (while saved-val
 339                 (if (car saved-val)
 340                     (set (car (car var)) (car saved-val))
 341                   (makunbound (car (car var))))
 342                 (setq saved-val (cdr saved-val)
 343                       var (cdr var)))
 344               (calc-handle-whys))))))))
 345
 346 (defun calc-is-assignments (value)
 347   (if (memq (car-safe value) '(calcFunc-eq calcFunc-assign))
 348       (and (eq (car-safe (nth 1 value)) 'var)
 349            (list (cons (nth 2 (nth 1 value)) (nth 2 value))))
 350     (if (eq (car-safe value) 'vec)
 351         (let ((vv nil))
 352           (while (and (setq value (cdr value))
 353                       (memq (car-safe (car value))
 354                             '(calcFunc-eq calcFunc-assign))
 355                       (eq (car-safe (nth 1 (car value))) 'var))
 356             (setq vv (cons (cons (nth 2 (nth 1 (car value)))
 357                                  (nth 2 (car value)))
 358                            vv)))
 359           (and (not value)
 360                vv)))))
 361
 362 (defun calc-recall (&optional var)
 363   (interactive)
 364   (calc-wrapper
 365    (or var (setq var (calc-read-var-name "Recall: ")))
 366    (if var
 367        (let ((value (calc-var-value var)))
 368          (or value
 369              (error "No such variable: \"%s\"" (calc-var-name var)))
 370          (if (stringp value)
 371              (setq value (math-read-expr value)))
 372          (if (eq (car-safe value) 'error)
 373              (error "Bad format in variable contents: %s" (nth 2 value)))
 374          (setq value (calc-normalize value))
 375          (let ((calc-full-trail-vectors nil))
 376            (calc-record value (concat "<" (calc-var-name var))))
 377          (calc-push value)))))
 378
 379 (defun calc-store-quick ()
 380   (interactive)
 381   (calc-store (intern (format "var-q%c" last-command-event))))
 382
 383 (defun calc-store-into-quick ()
 384   (interactive)
 385   (calc-store-into (intern (format "var-q%c" last-command-event))))
 386
 387 (defun calc-recall-quick ()
 388   (interactive)
 389   (calc-recall (intern (format "var-q%c" last-command-event))))
 390
 391 (defun calc-copy-special-constant (&optional sconst var)
 392   (interactive)
 393   (let ((sc '(("")
 394               ("e" . (special-const (math-e)))
 395               ("pi" . (special-const (math-pi)))
 396               ("i" . (special-const (math-imaginary 1)))
 397               ("phi" . (special-const (math-phi)))
 398               ("gamma" . (special-const (math-gamma-const))))))
 399   (calc-wrapper
 400    (or sconst (setq sconst (completing-read "Special constant: " sc nil t)))
 401    (unless (string= sconst "")
 402      (let ((value (cdr (assoc sconst sc))))
 403        (or var (setq var (calc-read-var-name
 404                             (format "Copy special constant %s, to: "
 405                                     sconst))))
 406        (if var
 407            (let ((msg (calc-store-value var value "")))
 408              (message (concat "Special constant \"%s\" copied to \"%s\"" msg)
 409                       sconst (calc-var-name var)))))))))
 410
 411 (defun calc-copy-variable (&optional var1 var2)
 412   (interactive)
 413   (calc-wrapper
 414    (or var1 (setq var1 (calc-read-var-name "Copy variable: ")))
 415    (if var1
 416        (let ((value (calc-var-value var1)))
 417          (or value
 418              (error "No such variable: \"%s\"" (calc-var-name var1)))
 419          (or var2 (setq var2 (calc-read-var-name
 420                               (format "Copy variable: %s, to: "
 421                                       (calc-var-name var1)))))
 422          (if var2
 423              (let ((msg (calc-store-value var2 value "")))
 424                (message "Variable \"%s\" copied to \"%s\"%s"
 425                         (calc-var-name var1) (calc-var-name var2) msg)))))))
 426
 427 (defvar calc-last-edited-variable nil)
 428 (defun calc-edit-variable (&optional var)
 429   (interactive)
 430   (calc-wrapper
 431    (or var (setq var (calc-read-var-name
 432                       (if calc-last-edited-variable
 433                           (format "Edit (default %s): "
 434                                   (calc-var-name calc-last-edited-variable))
 435                         "Edit: "))))
 436    (or var (setq var calc-last-edited-variable))
 437    (if var
 438        (let* ((value (calc-var-value var)))
 439          (if (eq (car-safe value) 'special-const)
 440              (error "%s is a special constant" var))
 441          (setq calc-last-edited-variable var)
 442          (calc-edit-mode (list 'calc-finish-stack-edit (list 'quote var))
 443                          t
 444                          (format-message
 445                           "Editing variable `%s'" (calc-var-name var)))
 446          (and value
 447               (insert (math-format-nice-expr value (frame-width)) "\n")))))
 448   (calc-show-edit-buffer))
 449
 450 (defun calc-edit-Decls ()
 451   (interactive)
 452   (calc-edit-variable 'var-Decls))
 453
 454 (defun calc-edit-EvalRules ()
 455   (interactive)
 456   (calc-edit-variable 'var-EvalRules))
 457
 458 (defun calc-edit-FitRules ()
 459   (interactive)
 460   (calc-edit-variable 'var-FitRules))
 461
 462 (defun calc-edit-GenCount ()
 463   (interactive)
 464   (calc-edit-variable 'var-GenCount))
 465
 466 (defun calc-edit-Holidays ()
 467   (interactive)
 468   (calc-edit-variable 'var-Holidays))
 469
 470 (defun calc-edit-IntegLimit ()
 471   (interactive)
 472   (calc-edit-variable 'var-IntegLimit))
 473
 474 (defun calc-edit-LineStyles ()
 475   (interactive)
 476   (calc-edit-variable 'var-LineStyles))
 477
 478 (defun calc-edit-PointStyles ()
 479   (interactive)
 480   (calc-edit-variable 'var-PointStyles))
 481
 482 (defun calc-edit-PlotRejects ()
 483   (interactive)
 484   (calc-edit-variable 'var-PlotRejects))
 485
 486 (defun calc-edit-AlgSimpRules ()
 487   (interactive)
 488   (calc-edit-variable 'var-AlgSimpRules))
 489
 490 (defun calc-edit-TimeZone ()
 491   (interactive)
 492   (calc-edit-variable 'var-TimeZone))
 493
 494 (defun calc-edit-Units ()
 495   (interactive)
 496   (calc-edit-variable 'var-Units))
 497
 498 (defun calc-edit-ExtSimpRules ()
 499   (interactive)
 500   (calc-edit-variable 'var-ExtSimpRules))
 501
 502 (defun calc-declare-variable (&optional var)
 503   (interactive)
 504   (calc-wrapper
 505    (or var (setq var (calc-read-var-name "Declare: " 0)))
 506    (or var (setq var 'var-All))
 507    (let* (dp decl def row rp)
 508      (or (and (calc-var-value 'var-Decls)
 509               (eq (car-safe var-Decls) 'vec))
 510          (setq var-Decls (list 'vec)))
 511      (setq dp var-Decls)
 512      (while (and (setq dp (cdr dp))
 513                  (or (not (eq (car-safe (car dp)) 'vec))
 514                      (/= (length (car dp)) 3)
 515                      (progn
 516                        (setq row (nth 1 (car dp))
 517                              rp row)
 518                        (if (eq (car-safe row) 'vec)
 519                            (progn
 520                              (while
 521                                  (and (setq rp (cdr rp))
 522                                       (or (not (eq (car-safe (car rp)) 'var))
 523                                           (not (eq (nth 2 (car rp)) var)))))
 524                              (setq rp (car rp)))
 525                          (if (or (not (eq (car-safe row) 'var))
 526                                  (not (eq (nth 2 row) var)))
 527                              (setq rp nil)))
 528                        (not rp)))))
 529      (calc-unread-command ?\C-a)
 530      (setq decl (read-string (format "Declare: %s  to be: " (calc-var-name var))
 531                              (and rp
 532                                   (math-format-flat-expr (nth 2 (car dp)) 0))))
 533      (setq decl (and (string-match "[^ \t]" decl)
 534                      (math-read-exprs decl)))
 535      (if (eq (car-safe decl) 'error)
 536          (error "Bad format in declaration: %s" (nth 2 decl)))
 537      (if (cdr decl)
 538          (setq decl (cons 'vec decl))
 539        (setq decl (car decl)))
 540      (and (eq (car-safe decl) 'vec)
 541           (= (length decl) 2)
 542           (setq decl (nth 1 decl)))
 543      (calc-record (append '(vec) (list (math-build-var-name var))
 544                           (and decl (list decl)))
 545                   "decl")
 546      (setq var-Decls (copy-sequence var-Decls))
 547      (if (eq (car-safe row) 'vec)
 548          (progn
 549            (setcdr row (delq rp (cdr row)))
 550            (or (cdr row)
 551                (setq var-Decls (delq (car dp) var-Decls))))
 552        (setq var-Decls (delq (car dp) var-Decls)))
 553      (if decl
 554          (progn
 555            (setq dp (and (not (eq var 'var-All)) var-Decls))
 556            (while (and (setq dp (cdr dp))
 557                        (or (not (eq (car-safe (car dp)) 'vec))
 558                            (/= (length (car dp)) 3)
 559                            (not (equal (nth 2 (car dp)) decl)))))
 560            (if dp
 561                (setcar (cdr (car dp))
 562                        (append (if (eq (car-safe (nth 1 (car dp))) 'vec)
 563                                    (nth 1 (car dp))
 564                                  (list 'vec (nth 1 (car dp))))
 565                                (list (math-build-var-name var))))
 566              (setq var-Decls (append var-Decls
 567                                      (list (list 'vec
 568                                                  (math-build-var-name var)
 569                                                  decl)))))))
 570      (calc-refresh-evaltos 'var-Decls))))
 571
 572 (defvar calc-dont-insert-variables '(var-FitRules var-FactorRules
 573                                      var-CommuteRules var-JumpRules
 574                                      var-DistribRules var-MergeRules
 575                                      var-NegateRules var-InvertRules
 576                                      var-IntegAfterRules
 577                                      var-TimeZone var-PlotRejects
 578                                      var-PlotData1 var-PlotData2
 579                                      var-PlotData3 var-PlotData4
 580                                      var-PlotData5 var-PlotData6
 581                                      var-DUMMY))
 582
 583 ;; The variable calc-pv-pos is local to calc-permanent-variable, but
 584 ;; used by calc-insert-permanent-variable, which is called by
 585 ;; calc-permanent-variable.
 586 (defvar calc-pv-pos)
 587
 588 (defun calc-permanent-variable (&optional var)
 589   (interactive)
 590   (calc-wrapper
 591    (or var (setq var (calc-read-var-name "Save variable (default all): ")))
 592    (let (calc-pv-pos)
 593      (and var (or (and (boundp var) (symbol-value var))
 594                   (error "No such variable")))
 595      (set-buffer (find-file-noselect (substitute-in-file-name
 596                                       calc-settings-file)))
 597      (if var
 598          (calc-insert-permanent-variable var)
 599        (mapatoms (function
 600                   (lambda (x)
 601                     (and (string-match "\\`var-" (symbol-name x))
 602                          (not (memq x calc-dont-insert-variables))
 603                          (calc-var-value x)
 604                          (not (eq (car-safe (symbol-value x)) 'special-const))
 605                          (calc-insert-permanent-variable x))))))
 606      (save-buffer))))
 607
 608
 609
 610 (defun calc-insert-permanent-variable (var)
 611   (goto-char (point-min))
 612   (if (let (case-fold-search)
 613         (search-forward (concat "(setq " (symbol-name var) " '") nil t))
 614       (progn
 615         (setq calc-pv-pos (point-marker))
 616         (forward-line -1)
 617         (if (looking-at ";;; Variable .* stored by Calc on ")
 618             (progn
 619               (delete-region (match-end 0) (progn (end-of-line) (point)))
 620               (insert (current-time-string))))
 621         (goto-char (- calc-pv-pos 8 (length (symbol-name var))))
 622         (forward-sexp 1)
 623         (backward-char 1)
 624         (delete-region calc-pv-pos (point)))
 625     (goto-char (point-max))
 626     (insert "\n;;; Variable \""
 627             (symbol-name var)
 628             "\" stored by Calc on "
 629             (current-time-string)
 630             "\n(setq "
 631             (symbol-name var)
 632             " ')\n")
 633     (backward-char 2))
 634   (insert (prin1-to-string (calc-var-value var)))
 635   (forward-line 1))
 636
 637 (defun calc-insert-variables (buf)
 638   (interactive "bBuffer in which to save variable values: ")
 639   (with-current-buffer buf
 640     (mapatoms (function
 641                (lambda (x)
 642                  (and (string-match "\\`var-" (symbol-name x))
 643                       (not (memq x calc-dont-insert-variables))
 644                       (calc-var-value x)
 645                       (not (eq (car-safe (symbol-value x)) 'special-const))
 646                       (or (not (eq x 'var-Decls))
 647                           (not (equal var-Decls '(vec))))
 648                       (or (not (eq x 'var-Holidays))
 649                           (not (equal var-Holidays '(vec (var sat var-sat)
 650                                                          (var sun var-sun)))))
 651                       (insert "(setq "
 652                               (symbol-name x)
 653                               " "
 654                               (prin1-to-string
 655                                (let ((calc-language
 656                                       (if (memq calc-language '(nil big))
 657                                           'flat
 658                                         calc-language)))
 659                                  (math-format-value (symbol-value x) 100000)))
 660                               ")\n")))))))
 661
 662 (defun calc-assign (arg)
 663   (interactive "P")
 664   (calc-slow-wrapper
 665    (calc-binary-op ":=" 'calcFunc-assign arg)))
 666
 667 (defun calc-evalto (arg)
 668   (interactive "P")
 669   (calc-slow-wrapper
 670    (calc-unary-op "=>" 'calcFunc-evalto arg)))
 671
 672 (defun calc-subscript (arg)
 673   (interactive "P")
 674   (calc-slow-wrapper
 675    (calc-binary-op "sub" 'calcFunc-subscr arg)))
 676
 677 (provide 'calc-store)
 678
 679 ;;; calc-store.el ends here