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- ;; Calculator for GNU Emacs, part II [calc-mode.el]
- ;; Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
- ;; Written by Dave Gillespie, daveg@synaptics.com.
-
- ;; This file is part of GNU Emacs.
-
- ;; GNU Emacs is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY. No author or distributor
- ;; accepts responsibility to anyone for the consequences of using it
- ;; or for whether it serves any particular purpose or works at all,
- ;; unless he says so in writing. Refer to the GNU Emacs General Public
- ;; License for full details.
-
- ;; Everyone is granted permission to copy, modify and redistribute
- ;; GNU Emacs, but only under the conditions described in the
- ;; GNU Emacs General Public License. A copy of this license is
- ;; supposed to have been given to you along with GNU Emacs so you
- ;; can know your rights and responsibilities. It should be in a
- ;; file named COPYING. Among other things, the copyright notice
- ;; and this notice must be preserved on all copies.
-
-
-
- ;; This file is autoloaded from calc-ext.el.
- (require 'calc-ext)
-
- (require 'calc-macs)
-
- (defun calc-Need-calc-mode () nil)
-
-
- (defun calc-line-numbering (n)
- (interactive "P")
- (calc-wrapper
- (message (if (calc-change-mode 'calc-line-numbering n t t)
- "Displaying stack level numbers."
- "Hiding stack level numbers.")))
- )
-
- (defun calc-line-breaking (n)
- (interactive "P")
- (calc-wrapper
- (setq n (if n
- (and (> (setq n (prefix-numeric-value n)) 0)
- (or (< n 5)
- n))
- (not calc-line-breaking)))
- (if (calc-change-mode 'calc-line-breaking n t)
- (if (integerp calc-line-breaking)
- (message "Breaking lines longer than %d characters." n)
- (message "Breaking long lines in Stack display."))
- (message "Not breaking long lines in Stack display.")))
- )
-
-
- (defun calc-left-justify (n)
- (interactive "P")
- (calc-wrapper
- (and n (setq n (prefix-numeric-value n)))
- (calc-change-mode '(calc-display-just calc-display-origin)
- (list nil n) t)
- (if n
- (message "Displaying stack entries indented by %d." n)
- (message "Displaying stack entries left-justified.")))
- )
-
- (defun calc-center-justify (n)
- (interactive "P")
- (calc-wrapper
- (and n (setq n (prefix-numeric-value n)))
- (calc-change-mode '(calc-display-just calc-display-origin)
- (list 'center n) t)
- (if n
- (message "Displaying stack entries centered on column %d." n)
- (message "Displaying stack entries centered in window.")))
- )
-
- (defun calc-right-justify (n)
- (interactive "P")
- (calc-wrapper
- (and n (setq n (prefix-numeric-value n)))
- (calc-change-mode '(calc-display-just calc-display-origin)
- (list 'right n) t)
- (if n
- (message "Displaying stack entries right-justified to column %d." n)
- (message "Displaying stack entries right-justified in window.")))
- )
-
- (defun calc-left-label (s)
- (interactive "sLefthand label: ")
- (calc-wrapper
- (or (equal s "")
- (setq s (concat s " ")))
- (calc-change-mode 'calc-left-label s t))
- )
-
- (defun calc-right-label (s)
- (interactive "sRighthand label: ")
- (calc-wrapper
- (or (equal s "")
- (setq s (concat " " s)))
- (calc-change-mode 'calc-right-label s t))
- )
-
- (defun calc-auto-why (n)
- (interactive "P")
- (calc-wrapper
- (if n
- (progn
- (setq n (prefix-numeric-value n))
- (if (<= n 0) (setq n nil)
- (if (> n 1) (setq n t))))
- (setq n (and (not (eq calc-auto-why t)) (if calc-auto-why t 1))))
- (calc-change-mode 'calc-auto-why n nil)
- (cond ((null n)
- (message "User must press `w' to explain unsimplified results."))
- ((eq n t)
- (message "Automatically doing `w' to explain unsimplified results."))
- (t
- (message "Automatically doing `w' only for unusual messages."))))
- )
-
- (defun calc-group-digits (n)
- (interactive "P")
- (calc-wrapper
- (if n
- (progn
- (setq n (prefix-numeric-value n))
- (cond ((or (> n 0) (< n -1)))
- ((= n -1)
- (setq n nil))
- (t
- (setq n calc-group-digits))))
- (setq n (not calc-group-digits)))
- (calc-change-mode 'calc-group-digits n t)
- (cond ((null n)
- (message "Grouping is off."))
- ((integerp n)
- (message "Grouping every %d digits." (math-abs n)))
- (t
- (message "Grouping is on."))))
- )
-
- (defun calc-group-char (ch)
- (interactive "cGrouping character: ")
- (calc-wrapper
- (or (>= ch 32)
- (error "Control characters not allowed for grouping."))
- (if (= ch ?\\)
- (setq ch "\\,")
- (setq ch (char-to-string ch)))
- (calc-change-mode 'calc-group-char ch calc-group-digits)
- (message "Digit grouping character is \"%s\"." ch))
- )
-
- (defun calc-point-char (ch)
- (interactive "cCharacter to use as decimal point: ")
- (calc-wrapper
- (or (>= ch 32)
- (error "Control characters not allowed as decimal point."))
- (calc-change-mode 'calc-point-char (char-to-string ch) t)
- (message "Decimal point character is \"%c\"." ch))
- )
-
- (defun calc-normal-notation (n)
- (interactive "P")
- (calc-wrapper
- (calc-change-mode 'calc-float-format
- (let* ((val (if n (prefix-numeric-value n) 0))
- (mode (/ (+ val 5000) 10000)))
- (if (or (< val -5000) (> mode 3))
- (error "Prefix out of range"))
- (setq n (list (aref [float sci eng fix] mode)
- (- (% (+ val 5000) 10000) 5000))))
- t)
- (if (eq (nth 1 n) 0)
- (message "Displaying floating-point numbers normally.")
- (if (> (nth 1 n) 0)
- (message
- "Displaying floating-point numbers with %d significant digits."
- (nth 1 n))
- (message "Displaying floating-point numbers with (precision%d)."
- (nth 1 n)))))
- )
-
- (defun calc-fix-notation (n)
- (interactive "NDigits after decimal point: ")
- (calc-wrapper
- (calc-change-mode 'calc-float-format
- (setq n (list 'fix (if n (prefix-numeric-value n) 0)))
- t)
- (message "Displaying floats with %d digits after decimal."
- (math-abs (nth 1 n))))
- )
-
- (defun calc-sci-notation (n)
- (interactive "P")
- (calc-wrapper
- (calc-change-mode 'calc-float-format
- (setq n (list 'sci (if n (prefix-numeric-value n) 0)))
- t)
- (if (eq (nth 1 n) 0)
- (message "Displaying floats in scientific notation.")
- (if (> (nth 1 n) 0)
- (message "Displaying scientific notation with %d significant digits."
- (nth 1 n))
- (message "Displaying scientific notation with (precision%d)."
- (nth 1 n)))))
- )
-
- (defun calc-eng-notation (n)
- (interactive "P")
- (calc-wrapper
- (calc-change-mode 'calc-float-format
- (setq n (list 'eng (if n (prefix-numeric-value n) 0)))
- t)
- (if (eq (nth 1 n) 0)
- (message "Displaying floats in engineering notation.")
- (if (> (nth 1 n) 0)
- (message "Displaying engineering notation with %d significant digits."
- (nth 1 n))
- (message "Displaying engineering notation with (precision%d)."
- (nth 1 n)))))
- )
-
-
- (defun calc-truncate-stack (n &optional rel)
- (interactive "P")
- (calc-wrapper
- (let ((oldtop calc-stack-top)
- (newtop calc-stack-top))
- (calc-record-undo (list 'set 'saved-stack-top calc-stack-top))
- (let ((calc-stack-top 0)
- (nn (prefix-numeric-value n)))
- (setq newtop
- (if n
- (progn
- (if rel
- (setq nn (+ oldtop nn))
- (if (< nn 0)
- (setq nn (+ nn (calc-stack-size)))
- (setq nn (1+ nn))))
- (if (< nn 1)
- 1
- (if (> nn (calc-stack-size))
- (calc-stack-size)
- nn)))
- (max 1 (calc-locate-cursor-element (point)))))
- (if (= newtop oldtop)
- ()
- (calc-pop-stack 1 oldtop t)
- (calc-push-list '(top-of-stack) newtop)
- (if calc-line-numbering
- (calc-refresh))))
- (calc-record-undo (list 'set 'saved-stack-top 0))
- (setq calc-stack-top newtop)))
- )
-
- (defun calc-truncate-up (n)
- (interactive "p")
- (calc-truncate-stack n t)
- )
-
- (defun calc-truncate-down (n)
- (interactive "p")
- (calc-truncate-stack (- n) t)
- )
-
- (defun calc-display-raw (arg)
- (interactive "P")
- (calc-wrapper
- (setq calc-display-raw (if calc-display-raw nil (if arg 0 t)))
- (calc-do-refresh)
- (if calc-display-raw
- (message "Press d ' again to cancel \"raw\" display mode.")))
- )
-
-
-
-
- ;;; Mode commands.
-
- (defun calc-save-modes (&optional quiet)
- (interactive)
- (calc-wrapper
- (let (pos
- (vals (mapcar (function (lambda (v) (symbol-value (car v))))
- calc-mode-var-list)))
- (set-buffer (find-file-noselect (substitute-in-file-name
- calc-settings-file)))
- (goto-char (point-min))
- (if (and (search-forward ";;; Mode settings stored by Calc" nil t)
- (progn
- (beginning-of-line)
- (setq pos (point))
- (search-forward "\n;;; End of mode settings" nil t)))
- (progn
- (beginning-of-line)
- (forward-line 1)
- (delete-region pos (point)))
- (goto-char (point-max))
- (insert "\n\n")
- (forward-char -1))
- (insert ";;; Mode settings stored by Calc on " (current-time-string) "\n")
- (let ((list calc-mode-var-list))
- (while list
- (let* ((v (car (car list)))
- (def (nth 1 (car list)))
- (val (car vals)))
- (or (equal val def)
- (progn
- (insert "(setq " (symbol-name v) " ")
- (if (and (or (listp val)
- (symbolp val))
- (not (memq val '(nil t))))
- (insert "'"))
- (insert (prin1-to-string val) ")\n"))))
- (setq list (cdr list)
- vals (cdr vals))))
- (run-hooks 'calc-mode-save-hook)
- (insert ";;; End of mode settings\n")
- (if quiet
- (let ((executing-macro "")) ; what a kludge!
- (save-buffer))
- (save-buffer))))
- )
-
- (defun calc-settings-file-name (name &optional arg)
- (interactive "sSettings file name (normally ~/.emacs): \nP")
- (calc-wrapper
- (setq arg (if arg (prefix-numeric-value arg) 0))
- (if (equal name "")
- (message "Calc settings file is \"%s\"" calc-settings-file)
- (if (< (math-abs arg) 2)
- (let ((list calc-mode-var-list))
- (while list
- (set (car (car list)) (nth 1 (car list)))
- (setq list (cdr list)))))
- (setq calc-settings-file name)
- (or (and (string-match "\\.emacs" calc-settings-file)
- (> arg 0))
- (< arg 0)
- (load name t)
- (message "New file"))))
- )
-
- (defun math-get-modes-vec ()
- (list 'vec
- calc-internal-prec
- calc-word-size
- (calc-stack-size)
- calc-number-radix
- (+ (if (<= (nth 1 calc-float-format) 0)
- (+ calc-internal-prec (nth 1 calc-float-format))
- (nth 1 calc-float-format))
- (cdr (assq (car calc-float-format)
- '((float . 0) (sci . 10000)
- (eng . 20000) (fix . 30000)))))
- (cond ((eq calc-angle-mode 'rad) 2)
- ((eq calc-angle-mode 'hms) 3)
- (t 1))
- (if calc-symbolic-mode 1 0)
- (if calc-prefer-frac 1 0)
- (if (eq calc-complex-mode 'polar) 1 0)
- (cond ((eq calc-matrix-mode 'scalar) 0)
- ((eq calc-matrix-mode 'matrix) -2)
- (calc-matrix-mode)
- (t -1))
- (cond ((eq calc-simplify-mode 'none) -1)
- ((eq calc-simplify-mode 'num) 0)
- ((eq calc-simplify-mode 'binary) 2)
- ((eq calc-simplify-mode 'alg) 3)
- ((eq calc-simplify-mode 'ext) 4)
- ((eq calc-simplify-mode 'units) 5)
- (t 1))
- (cond ((eq calc-infinite-mode 1) 0)
- (calc-infinite-mode 1)
- (t -1)))
- )
-
- (defun calc-get-modes (n)
- (interactive "P")
- (calc-wrapper
- (let ((modes (math-get-modes-vec)))
- (calc-enter-result 0 "mode"
- (if n
- (if (and (>= (setq n (prefix-numeric-value n)) 1)
- (< n (length modes)))
- (nth n modes)
- (error "Prefix out of range"))
- modes))))
- )
-
- (defun calc-shift-prefix (arg)
- (interactive "P")
- (calc-wrapper
- (setq calc-shift-prefix (if arg
- (> (prefix-numeric-value arg) 0)
- (not calc-shift-prefix)))
- (calc-init-prefixes)
- (message (if calc-shift-prefix
- "Prefix keys are now case-insensitive"
- "Prefix keys must be unshifted (except V, Z)")))
- )
-
- (defun calc-mode-record-mode (n)
- (interactive "P")
- (calc-wrapper
- (calc-change-mode 'calc-mode-save-mode
- (cond ((null n)
- (cond ((not calc-embedded-info)
- (if (eq calc-mode-save-mode 'save)
- 'local 'save))
- ((eq calc-mode-save-mode 'local) 'edit)
- ((eq calc-mode-save-mode 'edit) 'perm)
- ((eq calc-mode-save-mode 'perm) 'global)
- ((eq calc-mode-save-mode 'global) 'save)
- ((eq calc-mode-save-mode 'save) nil)
- ((eq calc-mode-save-mode nil) 'local)))
- ((= (setq n (prefix-numeric-value n)) 0) nil)
- ((= n 2) 'edit)
- ((= n 3) 'perm)
- ((= n 4) 'global)
- ((= n 5) 'save)
- (t 'local)))
- (message (cond ((and (eq calc-mode-save-mode 'local) calc-embedded-info)
- "Recording mode changes with [calc-mode: ...]")
- ((eq calc-mode-save-mode 'edit)
- "Recording mode changes with [calc-edit-mode: ...]")
- ((eq calc-mode-save-mode 'perm)
- "Recording mode changes with [calc-perm-mode: ...]")
- ((eq calc-mode-save-mode 'global)
- "Recording mode changes with [calc-global-mode: ...]")
- ((eq calc-mode-save-mode 'save)
- (format "Recording mode changes in \"%s\"."
- calc-settings-file))
- (t
- "Not recording mode changes permanently."))))
- )
-
- (defun calc-total-algebraic-mode (flag)
- (interactive "P")
- (if calc-emacs-type-19
- (error "Total algebraic mode not yet supported for Emacs 19"))
- (calc-wrapper
- (if (eq calc-algebraic-mode 'total)
- (calc-algebraic-mode nil)
- (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode)
- '(total nil))
- (use-local-map calc-alg-map)
- (message
- "All keys begin algebraic entry; use Meta (ESC) for Calc keys.")))
- )
-
- (defun calc-algebraic-mode (flag)
- (interactive "P")
- (calc-wrapper
- (if flag
- (calc-change-mode '(calc-algebraic-mode
- calc-incomplete-algebraic-mode)
- (list nil (not calc-incomplete-algebraic-mode)))
- (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode)
- (list (not calc-algebraic-mode) nil)))
- (use-local-map calc-mode-map)
- (message (if calc-algebraic-mode
- "Numeric keys and ( and [ begin algebraic entry."
- (if calc-incomplete-algebraic-mode
- "Only ( and [ begin algebraic entry."
- "No keys except ' and $ begin algebraic entry."))))
- )
-
- (defun calc-symbolic-mode (n)
- (interactive "P")
- (calc-wrapper
-
- (message (if (calc-change-mode 'calc-symbolic-mode n nil t)
- "Inexact computations like sqrt(2) are deferred."
- "Numerical computations are always done immediately.")))
- )
-
- (defun calc-infinite-mode (n)
- (interactive "P")
- (calc-wrapper
- (if (eq n 0)
- (progn
- (calc-change-mode 'calc-infinite-mode 1)
- (message "Computations like 1 / 0 produce \"inf\"."))
- (message (if (calc-change-mode 'calc-infinite-mode n nil t)
- "Computations like 1 / 0 produce \"uinf\"."
- "Computations like 1 / 0 are left unsimplified."))))
- )
-
- (defun calc-matrix-mode (arg)
- (interactive "P")
- (calc-wrapper
- (calc-change-mode 'calc-matrix-mode
- (cond ((eq arg 0) 'scalar)
- ((< (prefix-numeric-value arg) 1)
- (and (< (prefix-numeric-value arg) -1) 'matrix))
- (arg (prefix-numeric-value arg))
- ((eq calc-matrix-mode 'matrix) 'scalar)
- ((eq calc-matrix-mode 'scalar) nil)
- (t 'matrix)))
- (if (integerp calc-matrix-mode)
- (message "Variables are assumed to be %dx%d matrices."
- calc-matrix-mode calc-matrix-mode)
- (message (if (eq calc-matrix-mode 'matrix)
- "Variables are assumed to be matrices."
- (if calc-matrix-mode
- "Variables are assumed to be scalars (non-matrices)."
- "Variables are not assumed to be matrix or scalar.")))))
- )
-
- (defun calc-set-simplify-mode (mode arg msg)
- (calc-change-mode 'calc-simplify-mode
- (if arg
- (and (> (prefix-numeric-value arg) 0)
- mode)
- (and (not (eq calc-simplify-mode mode))
- mode)))
- (message (if (eq calc-simplify-mode mode)
- msg
- "Default simplifications enabled."))
- )
-
- (defun calc-no-simplify-mode (arg)
- (interactive "P")
- (calc-wrapper
- (calc-set-simplify-mode 'none arg
- "All default simplifications are disabled."))
- )
-
- (defun calc-num-simplify-mode (arg)
- (interactive "P")
- (calc-wrapper
- (calc-set-simplify-mode 'num arg
- "Default simplifications apply only if arguments are numeric."))
- )
-
- (defun calc-default-simplify-mode (arg)
- (interactive "p")
- (cond ((= arg 1)
- (calc-wrapper
- (calc-set-simplify-mode
- nil nil "Usual default simplifications are enabled.")))
- ((= arg 0) (calc-num-simplify-mode 1))
- ((< arg 0) (calc-no-simplify-mode 1))
- ((= arg 2) (calc-bin-simplify-mode 1))
- ((= arg 3) (calc-alg-simplify-mode 1))
- ((= arg 4) (calc-ext-simplify-mode 1))
- ((= arg 5) (calc-units-simplify-mode 1))
- (t (error "Prefix argument out of range")))
- )
-
- (defun calc-bin-simplify-mode (arg)
- (interactive "P")
- (calc-wrapper
- (calc-set-simplify-mode 'binary arg
- (format "Binary simplification occurs by default (word size=%d)."
- calc-word-size)))
- )
-
- (defun calc-alg-simplify-mode (arg)
- (interactive "P")
- (calc-wrapper
- (calc-set-simplify-mode 'alg arg
- "Algebraic simplification occurs by default."))
- )
-
- (defun calc-ext-simplify-mode (arg)
- (interactive "P")
- (calc-wrapper
- (calc-set-simplify-mode 'ext arg
- "Extended algebraic simplification occurs by default."))
- )
-
- (defun calc-units-simplify-mode (arg)
- (interactive "P")
- (calc-wrapper
- (calc-set-simplify-mode 'units arg
- "Units simplification occurs by default."))
- )
-
- (defun calc-auto-recompute (arg)
- (interactive "P")
- (calc-wrapper
- (calc-change-mode 'calc-auto-recompute arg nil t)
- (calc-refresh-evaltos)
- (message (if calc-auto-recompute
- "Automatically recomputing `=>' forms when necessary."
- "Not recomputing `=>' forms automatically.")))
- )
-
- (defun calc-working (n)
- (interactive "P")
- (calc-wrapper
- (cond ((consp n)
- (calc-pop-push-record 0 "work"
- (cond ((eq calc-display-working-message t) 1)
- (calc-display-working-message 2)
- (t 0))))
- ((eq n 2) (calc-change-mode 'calc-display-working-message 'lots))
- ((eq n 0) (calc-change-mode 'calc-display-working-message nil))
- ((eq n 1) (calc-change-mode 'calc-display-working-message t)))
- (cond ((eq calc-display-working-message t)
- (message "\"Working...\" messages enabled."))
- (calc-display-working-message
- (message "Detailed \"Working...\" messages enabled."))
- (t
- (message "\"Working...\" messages disabled."))))
- )
-
- (defun calc-always-load-extensions ()
- (interactive)
- (calc-wrapper
- (if (setq calc-always-load-extensions (not calc-always-load-extensions))
- (message "Always loading extensions package.")
- (message "Loading extensions package on demand only.")))
- )
-
-
- (defun calc-matrix-left-justify ()
- (interactive)
- (calc-wrapper
- (calc-change-mode 'calc-matrix-just nil t)
- (message "Matrix elements will be left-justified in columns."))
- )
-
- (defun calc-matrix-center-justify ()
- (interactive)
- (calc-wrapper
- (calc-change-mode 'calc-matrix-just 'center t)
- (message "Matrix elements will be centered in columns."))
- )
-
- (defun calc-matrix-right-justify ()
- (interactive)
- (calc-wrapper
- (calc-change-mode 'calc-matrix-just 'right t)
- (message "Matrix elements will be right-justified in columns."))
- )
-
- (defun calc-full-vectors (n)
- (interactive "P")
- (calc-wrapper
- (message (if (calc-change-mode 'calc-full-vectors n t t)
- "Displaying long vectors in full."
- "Displaying long vectors in [a, b, c, ..., z] notation.")))
- )
-
- (defun calc-full-trail-vectors (n)
- (interactive "P")
- (calc-wrapper
- (message (if (calc-change-mode 'calc-full-trail-vectors n nil t)
- "Recording long vectors in full."
- "Recording long vectors in [a, b, c, ..., z] notation.")))
- )
-
- (defun calc-break-vectors (n)
- (interactive "P")
- (calc-wrapper
- (message (if (calc-change-mode 'calc-break-vectors n t t)
- "Displaying vector elements one-per-line."
- "Displaying vector elements all on one line.")))
- )
-
- (defun calc-vector-commas ()
- (interactive)
- (calc-wrapper
- (if (calc-change-mode 'calc-vector-commas (if calc-vector-commas nil ",") t)
- (message "Separating vector elements with \",\".")
- (message "Separating vector elements with spaces.")))
- )
-
- (defun calc-vector-brackets ()
- (interactive)
- (calc-wrapper
- (if (calc-change-mode 'calc-vector-brackets
- (if (equal calc-vector-brackets "[]") nil "[]") t)
- (message "Surrounding vectors with \"[]\".")
- (message "Not surrounding vectors with brackets.")))
- )
-
- (defun calc-vector-braces ()
- (interactive)
- (calc-wrapper
- (if (calc-change-mode 'calc-vector-brackets
- (if (equal calc-vector-brackets "{}") nil "{}") t)
- (message "Surrounding vectors with \"{}\".")
- (message "Not surrounding vectors with brackets.")))
- )
-
- (defun calc-vector-parens ()
- (interactive)
- (calc-wrapper
- (if (calc-change-mode 'calc-vector-brackets
- (if (equal calc-vector-brackets "()") nil "()") t)
- (message "Surrounding vectors with \"()\".")
- (message "Not surrounding vectors with brackets.")))
- )
-
- (defun calc-matrix-brackets (arg)
- (interactive "sCode letters (R, O, C, P): ")
- (calc-wrapper
- (let ((code (append (and (string-match "[rR]" arg) '(R))
- (and (string-match "[oO]" arg) '(O))
- (and (string-match "[cC]" arg) '(C))
- (and (string-match "[pP]" arg) '(P))))
- (bad (string-match "[^rRoOcCpP ]" arg)))
- (if bad
- (error "Unrecognized character: %c" (aref arg bad)))
- (calc-change-mode 'calc-matrix-brackets code t)))
- )
-
-