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- ;; Calculator for GNU Emacs, part II [calc-embed.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-embed () nil)
-
-
- (defun calc-show-plain (n)
- (interactive "P")
- (calc-wrapper
- (calc-set-command-flag 'renum-stack)
- (message (if (calc-change-mode 'calc-show-plain n nil t)
- "Including \"plain\" formulas in Calc Embedded mode."
- "Omitting \"plain\" formulas in Calc Embedded mode.")))
- )
-
-
-
-
- ;;; Things to do for Embedded Mode:
- ;;;
- ;;; Detect and strip off unexpected labels during reading.
- ;;;
- ;;; Get calc-grab-region to use math-read-big-expr.
- ;;; If calc-show-plain, main body should have only righthand side of => expr.
- ;;; Handle tabs that have crept into embedded formulas.
- ;;; After "switching to new formula", home cursor to that formula.
- ;;; Do something like \evalto ... \to for \gets operators.
- ;;;
-
-
- (defvar calc-embedded-modes nil)
- (defvar calc-embedded-globals nil)
- (defvar calc-embedded-active nil)
-
- (make-variable-buffer-local 'calc-embedded-all-active)
- (make-variable-buffer-local 'calc-embedded-some-active)
-
-
- (defvar calc-embedded-open-formula "\\`\\|^\n\\|\\$\\$?\\|\\\\\\[\\|^\\\\begin.*\n\\|^@.*\n\\|^\\.EQ.*\n\\|\\\\(\\|^%\n\\|^\\.\\\\\"\n"
- "*A regular expression for the opening delimiter of a formula used by
- calc-embedded.")
-
- (defvar calc-embedded-close-formula "\\'\\|\n$\\|\\$\\$?\\|\\\\]\\|^\\\\end.*\n\\|^@.*\n\\|^\\.EN.*\n\\|\\\\)\\|\n%\n\\|^\\.\\\\\"\n"
- "*A regular expression for the closing delimiter of a formula used by
- calc-embedded.")
-
- (defvar calc-embedded-open-word "^\\|[^-+0-9.eE]"
- "*A regular expression for the opening delimiter of a formula used by
- calc-embedded-word.")
-
- (defvar calc-embedded-close-word "$\\|[^-+0-9.eE]"
- "*A regular expression for the closing delimiter of a formula used by
- calc-embedded-word.")
-
- (defvar calc-embedded-open-plain "%%% "
- "*A string which is the opening delimiter for a \"plain\" formula.
- If calc-show-plain mode is enabled, this is inserted at the front of
- each formula.")
-
- (defvar calc-embedded-close-plain " %%%\n"
- "*A string which is the closing delimiter for a \"plain\" formula.
- See calc-embedded-open-plain.")
-
- (defvar calc-embedded-open-new-formula "\n\n"
- "*A string which is inserted at front of formula by calc-embedded-new-formula.")
-
- (defvar calc-embedded-close-new-formula "\n\n"
- "*A string which is inserted at end of formula by calc-embedded-new-formula.")
-
- (defvar calc-embedded-announce-formula "%Embed\n\\(% .*\n\\)*"
- "*A regular expression which is sure to be followed by a calc-embedded formula." )
-
- (defvar calc-embedded-open-mode "% "
- "*A string which should precede calc-embedded mode annotations.
- This is not required to be present for user-written mode annotations.")
-
- (defvar calc-embedded-close-mode "\n"
- "*A string which should follow calc-embedded mode annotations.
- This is not required to be present for user-written mode annotations.")
-
-
- (defconst calc-embedded-mode-vars '(("precision" . calc-internal-prec)
- ("word-size" . calc-word-size)
- ("angles" . calc-angle-mode)
- ("symbolic" . calc-symbolic-mode)
- ("matrix" . calc-matrix-mode)
- ("fractions" . calc-prefer-frac)
- ("complex" . calc-complex-mode)
- ("simplify" . calc-simplify-mode)
- ("language" . the-language)
- ("plain" . calc-show-plain)
- ("break" . calc-line-breaking)
- ("justify" . the-display-just)
- ("left-label" . calc-left-label)
- ("right-label" . calc-right-label)
- ("radix" . calc-number-radix)
- ("leading-zeros" . calc-leading-zeros)
- ("grouping" . calc-group-digits)
- ("group-char" . calc-group-char)
- ("point-char" . calc-point-char)
- ("frac-format" . calc-frac-format)
- ("float-format" . calc-float-format)
- ("complex-format" . calc-complex-format)
- ("hms-format" . calc-hms-format)
- ("date-format" . calc-date-format)
- ("matrix-justify" . calc-matrix-just)
- ("full-vectors" . calc-full-vectors)
- ("break-vectors" . calc-break-vectors)
- ("vector-commas" . calc-vector-commas)
- ("vector-brackets" . calc-vector-brackets)
- ("matrix-brackets" . calc-matrix-brackets)
- ("strings" . calc-display-strings)
- ))
-
-
- ;;; Format of calc-embedded-info vector:
- ;;; 0 Editing buffer.
- ;;; 1 Calculator buffer.
- ;;; 2 Top of current formula (marker).
- ;;; 3 Bottom of current formula (marker).
- ;;; 4 Top of current formula's delimiters (marker).
- ;;; 5 Bottom of current formula's delimiters (marker).
- ;;; 6 String representation of current formula.
- ;;; 7 Non-nil if formula is embedded within a single line.
- ;;; 8 Internal representation of current formula.
- ;;; 9 Variable assigned by this formula, or nil.
- ;;; 10 List of variables upon which this formula depends.
- ;;; 11 Evaluated value of the formula, or nil.
- ;;; 12 Mode settings for current formula.
- ;;; 13 Local mode settings for current formula.
- ;;; 14 Permanent mode settings for current formula.
- ;;; 15 Global mode settings for editing buffer.
-
-
- ;;; calc-embedded-active is an a-list keyed on buffers; each cdr is a
- ;;; sorted list of calc-embedded-infos in that buffer. We do this
- ;;; rather than using buffer-local variables because the latter are
- ;;; thrown away when a buffer changes major modes.
-
-
- (defun calc-do-embedded (arg end obeg oend)
- (if calc-embedded-info
-
- ;; Turn embedded mode off or switch to a new buffer.
- (cond ((eq (current-buffer) (aref calc-embedded-info 1))
- (let ((calcbuf (current-buffer))
- (buf (aref calc-embedded-info 0)))
- (calc-embedded-original-buffer t)
- (calc-embedded nil)
- (switch-to-buffer calcbuf)))
-
- ((eq (current-buffer) (aref calc-embedded-info 0))
- (let* ((info calc-embedded-info)
- (mode calc-embedded-modes))
- (save-excursion
- (set-buffer (aref info 1))
- (if (and (> (calc-stack-size) 0)
- (equal (calc-top 1 'full) (aref info 8)))
- (let ((calc-no-refresh-evaltos t))
- (if (calc-top 1 'sel)
- (calc-unselect 1))
- (calc-embedded-set-modes
- (aref info 15) (aref info 12) (aref info 14))
- (let ((calc-embedded-info nil))
- (calc-wrapper (calc-pop-stack))))
- (calc-set-mode-line)))
- (setq calc-embedded-info nil
- mode-line-buffer-identification (car mode)
- truncate-lines (nth 2 mode)
- buffer-read-only nil)
- (use-local-map (nth 1 mode))
- (set-buffer-modified-p (buffer-modified-p))
- (or calc-embedded-quiet
- (message "Back to %s mode." mode-name))))
-
- (t
- (if (buffer-name (aref calc-embedded-info 0))
- (save-excursion
- (set-buffer (aref calc-embedded-info 0))
- (or (y-or-n-p "Cancel Calc Embedded mode in buffer %s? "
- (buffer-name))
- (keyboard-quit))
- (calc-embedded nil)))
- (calc-embedded arg end obeg oend)))
-
- ;; Turn embedded mode on.
- (calc-plain-buffer-only)
- (let ((modes (list mode-line-buffer-identification
- (current-local-map)
- truncate-lines))
- top bot outer-top outer-bot
- info chg ident)
- (barf-if-buffer-read-only)
- (or calc-embedded-globals
- (calc-find-globals))
- (setq info (calc-embedded-make-info (point) nil t arg end obeg oend))
- (if (eq (car-safe (aref info 8)) 'error)
- (progn
- (goto-char (nth 1 (aref info 8)))
- (error (nth 2 (aref info 8)))))
- (let ((mode-line-buffer-identification mode-line-buffer-identification)
- (calc-embedded-info info)
- (calc-embedded-no-reselect t))
- (calc-wrapper
- (let* ((okay nil)
- (calc-no-refresh-evaltos t))
- (setq chg (calc-embedded-set-modes
- (aref info 15) (aref info 12) (aref info 13)))
- (if (aref info 8)
- (calc-push (calc-normalize (aref info 8)))
- (calc-alg-entry)))
- (setq calc-undo-list nil
- calc-redo-list nil
- ident mode-line-buffer-identification)))
- (setq calc-embedded-info info
- calc-embedded-modes modes
- mode-line-buffer-identification ident
- truncate-lines t
- buffer-read-only t)
- (set-buffer-modified-p (buffer-modified-p))
- (use-local-map calc-mode-map)
- (setq calc-no-refresh-evaltos nil)
- (and chg calc-any-evaltos (calc-wrapper (calc-refresh-evaltos)))
- (or (eq calc-embedded-quiet t)
- (message "Embedded Calc mode enabled. %s to return to normal."
- (if calc-embedded-quiet
- "Type `M-# x'"
- "Give this command again")))))
- (scroll-down 0) ; fix a bug which occurs when truncate-lines is changed.
- )
- (setq calc-embedded-quiet nil)
-
-
- (defun calc-embedded-select (arg)
- (interactive "P")
- (calc-embedded arg)
- (and calc-embedded-info
- (eq (car-safe (aref calc-embedded-info 8)) 'calcFunc-evalto)
- (calc-select-part 1))
- (and calc-embedded-info
- (or (eq (car-safe (aref calc-embedded-info 8)) 'calcFunc-assign)
- (and (eq (car-safe (aref calc-embedded-info 8)) 'calcFunc-evalto)
- (eq (car-safe (nth 1 (aref calc-embedded-info 8)))
- 'calcFunc-assign)))
- (calc-select-part 2))
- )
-
-
- (defun calc-embedded-update-formula (arg)
- (interactive "P")
- (if arg
- (let ((entry (assq (current-buffer) calc-embedded-active)))
- (while (setq entry (cdr entry))
- (and (eq (car-safe (aref (car entry) 8)) 'calcFunc-evalto)
- (or (not (consp arg))
- (and (<= (aref (car entry) 2) (region-beginning))
- (>= (aref (car entry) 3) (region-end))))
- (save-excursion
- (calc-embedded-update (car entry) 14 t t)))))
- (if (and calc-embedded-info
- (eq (current-buffer) (aref calc-embedded-info 0))
- (>= (point) (aref calc-embedded-info 4))
- (<= (point) (aref calc-embedded-info 5)))
- (calc-evaluate 1)
- (let* ((opt (point))
- (info (calc-embedded-make-info (point) nil t))
- (pt (- opt (aref info 4))))
- (or (eq (car-safe (aref info 8)) 'error)
- (progn
- (save-excursion
- (calc-embedded-update info 14 'eval t))
- (goto-char (+ (aref info 4) pt)))))))
- )
-
-
- (defun calc-embedded-edit (arg)
- (interactive "P")
- (let ((info (calc-embedded-make-info (point) nil t arg))
- str)
- (if (eq (car-safe (aref info 8)) 'error)
- (progn
- (goto-char (nth 1 (aref info 8)))
- (error (nth 2 (aref info 8)))))
- (calc-wrapper
- (setq str (math-showing-full-precision
- (math-format-nice-expr (aref info 8) (screen-width))))
- (calc-edit-mode (list 'calc-embedded-finish-edit info))
- (insert str "\n")))
- (calc-show-edit-buffer)
- )
-
- (defun calc-embedded-finish-edit (info)
- (let ((buf (current-buffer))
- (str (buffer-substring (point) (point-max)))
- (start (point))
- pos)
- (switch-to-buffer calc-original-buffer)
- (let ((val (save-excursion
- (set-buffer (aref info 1))
- (let ((calc-language nil)
- (math-expr-opers math-standard-opers))
- (math-read-expr str)))))
- (if (eq (car-safe val) 'error)
- (progn
- (switch-to-buffer buf)
- (goto-char (+ start (nth 1 val)))
- (error (nth 2 val))))
- (calc-embedded-original-buffer t info)
- (aset info 8 val)
- (calc-embedded-update info 14 t t)))
- )
-
- (defun calc-do-embedded-activate (arg cbuf)
- (calc-plain-buffer-only)
- (if arg
- (calc-embedded-forget))
- (calc-find-globals)
- (if (< (prefix-numeric-value arg) 0)
- (message "Deactivating %s for Calc Embedded mode." (buffer-name))
- (message "Activating %s for Calc Embedded mode..." (buffer-name))
- (save-excursion
- (let* ((active (assq (current-buffer) calc-embedded-active))
- (info active)
- (pat " := \\| \\\\gets \\| => \\| \\\\evalto "))
- (if calc-embedded-announce-formula
- (setq pat (format "%s\\|\\(%s\\)"
- pat calc-embedded-announce-formula)))
- (while (setq info (cdr info))
- (or (equal (buffer-substring (aref (car info) 2) (aref (car info) 3))
- (aref (car info) 6))
- (setcdr active (delq (car info) (cdr active)))))
- (goto-char (point-min))
- (while (re-search-forward pat nil t)
- (if (looking-at calc-embedded-open-formula)
- (goto-char (match-end 1)))
- (setq info (calc-embedded-make-info (point) cbuf nil))
- (or (eq (car-safe (aref info 8)) 'error)
- (goto-char (aref info 5))))))
- (message "Activating %s for Calc Embedded mode...done" (buffer-name)))
- (calc-embedded-active-state t)
- )
-
- (defun calc-plain-buffer-only ()
- (if (memq major-mode '(calc-mode calc-trail-mode calc-edit-mode))
- (error "This command should be used in a normal editing buffer"))
- )
-
- (defun calc-embedded-active-state (state)
- (or (assq 'calc-embedded-all-active minor-mode-alist)
- (setq minor-mode-alist
- (cons '(calc-embedded-all-active " Active")
- (cons '(calc-embedded-some-active " ~Active")
- minor-mode-alist))))
- (let ((active (assq (current-buffer) calc-embedded-active)))
- (or (cdr active)
- (setq state nil)))
- (and (eq state 'more) calc-embedded-all-active (setq state t))
- (setq calc-embedded-all-active (eq state t)
- calc-embedded-some-active (not (memq state '(nil t))))
- (set-buffer-modified-p (buffer-modified-p))
- )
-
-
- (defun calc-embedded-original-buffer (switch &optional info)
- (or info (setq info calc-embedded-info))
- (or (buffer-name (aref info 0))
- (progn
- (error "Calc embedded mode: Original buffer has been killed")))
- (if switch
- (set-buffer (aref info 0)))
- )
-
- (defun calc-embedded-word ()
- (interactive)
- (calc-embedded '(4))
- )
-
- (defun calc-embedded-mark-formula (&optional body-only)
- "Put point at the beginning of this Calc formula, mark at the end.
- This normally marks the whole formula, including surrounding delimiters.
- With any prefix argument, marks only the formula itself."
- (interactive "P")
- (and (eq major-mode 'calc-mode)
- (error "This command should be used in a normal editing buffer"))
- (let (top bot outer-top outer-bot)
- (save-excursion
- (calc-embedded-find-bounds body-only))
- (push-mark (if body-only bot outer-bot) t)
- (goto-char (if body-only top outer-top)))
- )
-
- (defun calc-embedded-find-bounds (&optional plain)
- ;; (while (and (bolp) (eq (following-char) ?\n))
- ;; (forward-char 1))
- (and (eolp) (bolp) (not (eq (char-after (- (point) 2)) ?\n))
- (forward-char -1))
- (let ((home (point)))
- (or (and (looking-at calc-embedded-open-formula)
- (not (looking-at calc-embedded-close-formula)))
- (re-search-backward calc-embedded-open-formula nil t)
- (error "Can't find start of formula"))
- (and (eq (preceding-char) ?\$) ; backward search for \$\$? won't back
- (eq (following-char) ?\$) ; up over a second $, so do it by hand.
- (forward-char -1))
- (setq outer-top (point))
- (goto-char (match-end 0))
- (if (eq (following-char) ?\n)
- (forward-char 1))
- (or (bolp)
- (while (eq (following-char) ?\ )
- (forward-char 1)))
- (or (eq plain 'plain)
- (if (looking-at (regexp-quote calc-embedded-open-plain))
- (progn
- (goto-char (match-end 0))
- (search-forward calc-embedded-close-plain))))
- (setq top (point))
- (or (re-search-forward calc-embedded-close-formula nil t)
- (error "Can't find end of formula"))
- (if (< (point) home)
- (error "Not inside a formula"))
- (and (eq (following-char) ?\n) (not (bolp))
- (forward-char 1))
- (setq outer-bot (point))
- (goto-char (match-beginning 0))
- (if (eq (preceding-char) ?\n)
- (backward-char 1))
- (or (eolp)
- (while (eq (preceding-char) ?\ )
- (backward-char 1)))
- (setq bot (point)))
- )
-
- (defun calc-embedded-kill-formula ()
- "Kill the formula surrounding point.
- If Calc Embedded mode was active, this deactivates it.
- The formula (including its surrounding delimiters) is saved in the kill ring.
- The command \\[yank] can retrieve it from there."
- (interactive)
- (and calc-embedded-info
- (calc-embedded nil))
- (calc-embedded-mark-formula)
- (kill-region (point) (mark))
- (pop-mark)
- )
-
- (defun calc-embedded-copy-formula-as-kill ()
- "Save the formula surrounding point as if killed, but don't kill it."
- (interactive)
- (save-excursion
- (calc-embedded-mark-formula)
- (copy-region-as-kill (point) (mark))
- (pop-mark))
- )
-
- (defun calc-embedded-duplicate ()
- (interactive)
- (let ((already calc-embedded-info)
- top bot outer-top outer-bot new-top)
- (if calc-embedded-info
- (progn
- (setq top (+ (aref calc-embedded-info 2))
- bot (+ (aref calc-embedded-info 3))
- outer-top (+ (aref calc-embedded-info 4))
- outer-bot (+ (aref calc-embedded-info 5)))
- (calc-embedded nil))
- (calc-embedded-find-bounds))
- (goto-char outer-bot)
- (insert "\n")
- (setq new-top (point))
- (insert-buffer-substring (current-buffer) outer-top outer-bot)
- (goto-char (+ new-top (- top outer-top)))
- (let ((calc-embedded-quiet (if already t 'x)))
- (calc-embedded (+ new-top (- top outer-top))
- (+ new-top (- bot outer-top))
- new-top
- (+ new-top (- outer-bot outer-top)))))
- )
-
- (defun calc-embedded-next (arg)
- (interactive "P")
- (setq arg (prefix-numeric-value arg))
- (let* ((active (cdr (assq (current-buffer) calc-embedded-active)))
- (p active)
- (num (length active)))
- (or active
- (error "No active formulas in buffer"))
- (cond ((= arg 0))
- ((= arg -1)
- (if (<= (point) (aref (car active) 3))
- (goto-char (aref (nth (1- num) active) 2))
- (while (and (cdr p)
- (> (point) (aref (nth 1 p) 3)))
- (setq p (cdr p)))
- (goto-char (aref (car p) 2))))
- ((< arg -1)
- (calc-embedded-next -1)
- (calc-embedded-next (+ (* num 1000) arg 1)))
- (t
- (setq arg (1+ (% (1- arg) num)))
- (while (and p (>= (point) (aref (car p) 2)))
- (setq p (cdr p)))
- (while (> (setq arg (1- arg)) 0)
- (setq p (if p (cdr p) (cdr active))))
- (goto-char (aref (car (or p active)) 2)))))
- )
-
- (defun calc-embedded-previous (arg)
- (interactive "p")
- (calc-embedded-next (- (prefix-numeric-value arg)))
- )
-
- (defun calc-embedded-new-formula ()
- (interactive)
- (and (eq major-mode 'calc-mode)
- (error "This command should be used in a normal editing buffer"))
- (if calc-embedded-info
- (calc-embedded nil))
- (let (top bot outer-top outer-bot)
- (if (and (eq (preceding-char) ?\n)
- (string-match "\\`\n" calc-embedded-open-new-formula))
- (progn
- (setq outer-top (1- (point)))
- (forward-char -1)
- (insert (substring calc-embedded-open-new-formula 1)))
- (setq outer-top (point))
- (insert calc-embedded-open-new-formula))
- (setq top (point))
- (insert " ")
- (setq bot (point))
- (insert calc-embedded-close-new-formula)
- (if (and (eq (following-char) ?\n)
- (string-match "\n\\'" calc-embedded-close-new-formula))
- (delete-char 1))
- (setq outer-bot (point))
- (goto-char top)
- (let ((calc-embedded-quiet 'x))
- (calc-embedded top bot outer-top outer-bot)))
- )
-
- (defun calc-embedded-forget ()
- (interactive)
- (setq calc-embedded-active (delq (assq (current-buffer) calc-embedded-active)
- calc-embedded-active))
- (calc-embedded-active-state nil)
- )
-
-
- (defun calc-embedded-set-modes (gmodes modes local-modes &optional temp)
- (let ((the-language (calc-embedded-language))
- (the-display-just (calc-embedded-justify))
- (v gmodes)
- (changed nil)
- found value)
- (while v
- (or (symbolp (car v))
- (and (setq found (assq (car (car v)) modes))
- (not (eq (cdr found) 'default)))
- (and (setq found (assq (car (car v)) local-modes))
- (not (eq (cdr found) 'default)))
- (progn
- (if (eq (setq value (cdr (car v))) 'default)
- (setq value (cdr (assq (car (car v)) calc-mode-var-list))))
- (equal (symbol-value (car (car v))) value))
- (progn
- (setq changed t)
- (if temp (setq prev-modes (cons (cons (car (car v))
- (symbol-value (car (car v))))
- prev-modes)))
- (set (car (car v)) value)))
- (setq v (cdr v)))
- (setq v modes)
- (while v
- (or (and (setq found (assq (car (car v)) local-modes))
- (not (eq (cdr found) 'default)))
- (eq (setq value (cdr (car v))) 'default)
- (equal (symbol-value (car (car v))) value)
- (progn
- (setq changed t)
- (if temp (setq prev-modes (cons (cons (car (car v))
- (symbol-value (car (car v))))
- prev-modes)))
- (set (car (car v)) value)))
- (setq v (cdr v)))
- (setq v local-modes)
- (while v
- (or (eq (setq value (cdr (car v))) 'default)
- (equal (symbol-value (car (car v))) value)
- (progn
- (setq changed t)
- (if temp (setq prev-modes (cons (cons (car (car v))
- (symbol-value (car (car v))))
- prev-modes)))
- (set (car (car v)) value)))
- (setq v (cdr v)))
- (and changed (not (eq temp t))
- (progn
- (calc-embedded-set-justify the-display-just)
- (calc-embedded-set-language the-language)))
- (and changed (not temp)
- (progn
- (setq calc-full-float-format (list (if (eq (car calc-float-format)
- 'fix)
- 'float
- (car calc-float-format))
- 0))
- (calc-refresh)))
- changed)
- )
-
- (defun calc-embedded-language ()
- (if calc-language-option
- (list calc-language calc-language-option)
- calc-language)
- )
-
- (defun calc-embedded-set-language (lang)
- (let ((option nil))
- (if (consp lang)
- (setq option (nth 1 lang)
- lang (car lang)))
- (or (and (eq lang calc-language)
- (equal option calc-language-option))
- (calc-set-language lang option t)))
- )
-
- (defun calc-embedded-justify ()
- (if calc-display-origin
- (list calc-display-just calc-display-origin)
- calc-display-just)
- )
-
- (defun calc-embedded-set-justify (just)
- (if (consp just)
- (setq calc-display-origin (nth 1 just)
- calc-display-just (car just))
- (setq calc-display-just just
- calc-display-origin nil))
- )
-
-
- (defun calc-find-globals ()
- (interactive)
- (and (eq major-mode 'calc-mode)
- (error "This command should be used in a normal editing buffer"))
- (make-local-variable 'calc-embedded-globals)
- (let ((case-fold-search nil)
- (modes nil)
- (save-pt (point))
- found value)
- (goto-char (point-min))
- (while (re-search-forward "\\[calc-global-mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)\\]" nil t)
- (and (setq found (assoc (buffer-substring (match-beginning 1)
- (match-end 1))
- calc-embedded-mode-vars))
- (or (assq (cdr found) modes)
- (setq modes (cons (cons (cdr found)
- (car (read-from-string
- (buffer-substring
- (match-beginning 2)
- (match-end 2)))))
- modes)))))
- (setq calc-embedded-globals (cons t modes))
- (goto-char save-pt))
- )
-
- (defun calc-embedded-find-modes ()
- (let ((case-fold-search nil)
- (save-pt (point))
- (no-defaults t)
- (modes nil)
- (emodes nil)
- (pmodes nil)
- found value)
- (while (and no-defaults (search-backward "[calc-" nil t))
- (forward-char 6)
- (or (and (looking-at "mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]")
- (setq found (assoc (buffer-substring (match-beginning 1)
- (match-end 1))
- calc-embedded-mode-vars))
- (or (assq (cdr found) modes)
- (setq modes (cons (cons (cdr found)
- (car (read-from-string
- (buffer-substring
- (match-beginning 2)
- (match-end 2)))))
- modes))))
- (and (looking-at "perm-mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]")
- (setq found (assoc (buffer-substring (match-beginning 1)
- (match-end 1))
- calc-embedded-mode-vars))
- (or (assq (cdr found) pmodes)
- (setq pmodes (cons (cons (cdr found)
- (car (read-from-string
- (buffer-substring
- (match-beginning 2)
- (match-end 2)))))
- pmodes))))
- (and (looking-at "edit-mode: *\\([-a-z]+\\): *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]")
- (setq found (assoc (buffer-substring (match-beginning 1)
- (match-end 1))
- calc-embedded-mode-vars))
- (or (assq (cdr found) emodes)
- (setq emodes (cons (cons (cdr found)
- (car (read-from-string
- (buffer-substring
- (match-beginning 2)
- (match-end 2)))))
- emodes))))
- (and (looking-at "defaults]")
- (setq no-defaults nil)))
- (backward-char 6))
- (goto-char save-pt)
- (list modes emodes pmodes))
- )
-
-
- (defun calc-embedded-make-info (point cbuf fresh &optional
- top bot outer-top outer-bot)
- (let* ((bufentry (assq (current-buffer) calc-embedded-active))
- (found bufentry)
- (force (and fresh top))
- (fixed top)
- (new-info nil)
- info str)
- (or found
- (setq found (list (current-buffer))
- calc-embedded-active (cons found calc-embedded-active)))
- (while (and (cdr found)
- (> point (aref (car (cdr found)) 3)))
- (setq found (cdr found)))
- (if (and (cdr found)
- (>= point (aref (nth 1 found) 2)))
- (setq info (nth 1 found))
- (setq info (make-vector 16 nil)
- new-info t
- fresh t)
- (aset info 0 (current-buffer))
- (aset info 1 (or cbuf (save-excursion
- (calc-create-buffer)
- (current-buffer)))))
- (if (and (integerp top) (not bot)) ; started with a user-supplied argument
- (progn
- (if (= (setq arg (prefix-numeric-value arg)) 0)
- (progn
- (aset info 2 (copy-marker (region-beginning)))
- (aset info 3 (copy-marker (region-end))))
- (aset info (if (> arg 0) 2 3) (point-marker))
- (forward-line arg)
- (aset info (if (> arg 0) 3 2) (point-marker)))
- (aset info 4 (copy-marker (aref info 2)))
- (aset info 5 (copy-marker (aref info 3))))
- (if (aref info 4)
- (setq top (aref info 2)
- fixed top)
- (if (consp top)
- (let ((calc-embedded-open-formula calc-embedded-open-word)
- (calc-embedded-close-formula calc-embedded-close-word))
- (calc-embedded-find-bounds 'plain))
- (or top
- (calc-embedded-find-bounds 'plain)))
- (aset info 2 (copy-marker (min top bot)))
- (aset info 3 (copy-marker (max top bot)))
- (aset info 4 (copy-marker (or outer-top (aref info 2))))
- (aset info 5 (copy-marker (or outer-bot (aref info 3))))))
- (goto-char (aref info 2))
- (if new-info
- (progn
- (or (bolp) (aset info 7 t))
- (goto-char (aref info 3))
- (or (bolp) (eolp) (aset info 7 t))))
- (if fresh
- (let ((modes (calc-embedded-find-modes)))
- (aset info 12 (car modes))
- (aset info 13 (nth 1 modes))
- (aset info 14 (nth 2 modes))))
- (aset info 15 calc-embedded-globals)
- (setq str (buffer-substring (aref info 2) (aref info 3)))
- (if (or force
- (not (equal str (aref info 6))))
- (if (and fixed (aref info 6))
- (progn
- (aset info 4 nil)
- (calc-embedded-make-info point cbuf nil)
- (setq new-info nil))
- (let* ((open-plain calc-embedded-open-plain)
- (close-plain calc-embedded-close-plain)
- (pref-len (length open-plain))
- (vars-used nil)
- suff-pos val temp)
- (save-excursion
- (set-buffer (aref info 1))
- (calc-embedded-set-modes (aref info 15)
- (aref info 12) (aref info 14))
- (if (and (> (length str) pref-len)
- (equal (substring str 0 pref-len) open-plain)
- (setq suff-pos (string-match (regexp-quote close-plain)
- str pref-len)))
- (setq val (math-read-plain-expr
- (substring str pref-len suff-pos)))
- (if (string-match "[^ \t\n]" str)
- (setq pref-len 0
- val (math-read-big-expr str))
- (setq val nil))))
- (if (eq (car-safe val) 'error)
- (setq val (list 'error
- (+ (aref info 2) pref-len (nth 1 val))
- (nth 2 val))))
- (aset info 6 str)
- (aset info 8 val)
- (setq temp val)
- (if (eq (car-safe temp) 'calcFunc-evalto)
- (setq temp (nth 1 temp))
- (if (eq (car-safe temp) 'error)
- (if new-info
- (setq new-info nil)
- (setcdr found (delq info (cdr found)))
- (calc-embedded-active-state 'less))))
- (aset info 9 (and (eq (car-safe temp) 'calcFunc-assign)
- (nth 1 temp)))
- (if (memq (car-safe val) '(calcFunc-evalto calcFunc-assign))
- (calc-embedded-find-vars val))
- (aset info 10 vars-used)
- (aset info 11 nil))))
- (if new-info
- (progn
- (setcdr found (cons info (cdr found)))
- (calc-embedded-active-state 'more)))
- info)
- )
-
- (defun calc-embedded-find-vars (x)
- (cond ((Math-primp x)
- (and (eq (car-safe x) 'var)
- (not (assoc x vars-used))
- (setq vars-used (cons (list x) vars-used))))
- ((eq (car x) 'calcFunc-evalto)
- (calc-embedded-find-vars (nth 1 x)))
- ((eq (car x) 'calcFunc-assign)
- (calc-embedded-find-vars (nth 2 x)))
- (t
- (and (eq (car x) 'calcFunc-subscr)
- (eq (car-safe (nth 1 x)) 'var)
- (Math-primp (nth 2 x))
- (not (assoc x vars-used))
- (setq vars-used (cons (list x) vars-used)))
- (while (setq x (cdr x))
- (calc-embedded-find-vars (car x)))))
- )
-
-
- (defun calc-embedded-evaluate-expr (x)
- (let ((vars-used (aref calc-embedded-info 10)))
- (or vars-used (calc-embedded-find-vars x))
- (if vars-used
- (let ((active (assq (aref calc-embedded-info 0) calc-embedded-active))
- (args nil))
- (save-excursion
- (calc-embedded-original-buffer t)
- (or active
- (progn
- (calc-embedded-activate)
- (setq active (assq (aref calc-embedded-info 0)
- calc-embedded-active))))
- (while vars-used
- (calc-embedded-eval-get-var (car (car vars-used)) active)
- (setq vars-used (cdr vars-used))))
- (calc-embedded-subst x))
- (calc-normalize (math-evaluate-expr-rec x))))
- )
-
- (defun calc-embedded-subst (x)
- (if (and (eq (car-safe x) 'calcFunc-evalto) (cdr x))
- (let ((rhs (calc-embedded-subst (nth 1 x))))
- (list 'calcFunc-evalto
- (nth 1 x)
- (if (eq (car-safe rhs) 'calcFunc-assign) (nth 2 rhs) rhs)))
- (if (and (eq (car-safe x) 'calcFunc-assign) (= (length x) 3))
- (list 'calcFunc-assign
- (nth 1 x)
- (calc-embedded-subst (nth 2 x)))
- (calc-normalize (math-evaluate-expr-rec (math-multi-subst-rec x)))))
- )
-
- (defun calc-embedded-eval-get-var (var base)
- (let ((entry base)
- (point (aref calc-embedded-info 2))
- (last nil)
- val)
- (while (and (setq entry (cdr entry))
- (or (not (equal var (aref (car entry) 9)))
- (and (> point (aref (car entry) 3))
- (setq last entry)))))
- (if last
- (setq entry last))
- (if entry
- (progn
- (setq entry (car entry))
- (if (equal (buffer-substring (aref entry 2) (aref entry 3))
- (aref entry 6))
- (progn
- (or (aref entry 11)
- (save-excursion
- (calc-embedded-update entry 14 t nil)))
- (setq val (aref entry 11))
- (if (eq (car-safe val) 'calcFunc-evalto)
- (setq val (nth 2 val)))
- (if (eq (car-safe val) 'calcFunc-assign)
- (setq val (nth 2 val)))
- (setq args (cons (cons var val) args)))
- (calc-embedded-activate)
- (calc-embedded-eval-get-var var base)))))
- )
-
-
- (defun calc-embedded-update (info which need-eval need-display
- &optional str entry old-val)
- (let* ((prev-modes nil)
- (open-plain calc-embedded-open-plain)
- (close-plain calc-embedded-close-plain)
- (vars-used nil)
- (evalled nil)
- (val (aref info 8))
- (old-eval (aref info 11)))
- (or old-val (setq old-val val))
- (if (eq (car-safe val) 'calcFunc-evalto)
- (setq need-display t))
- (unwind-protect
- (progn
- (set-buffer (aref info 1))
- (and which
- (calc-embedded-set-modes (aref info 15) (aref info 12)
- (aref info which)
- (if need-display 'full t)))
- (if (memq (car-safe val) '(calcFunc-evalto calcFunc-assign))
- (calc-embedded-find-vars val))
- (if need-eval
- (let ((calc-embedded-info info))
- (setq val (math-evaluate-expr val)
- evalled val)))
- (if (or (eq need-eval 'eval) (eq (car-safe val) 'calcFunc-evalto))
- (aset info 8 val))
- (aset info 9 nil)
- (aset info 10 vars-used)
- (aset info 11 nil)
- (if (or need-display (eq (car-safe val) 'calcFunc-evalto))
- (let ((extra (if (eq calc-language 'big) 1 0)))
- (or entry (setq entry (list val 1 nil)))
- (or str (progn
- (setq str (let ((calc-line-numbering nil))
- (math-format-stack-value entry)))
- (if (eq calc-language 'big)
- (setq str (substring str 0 -1)))))
- (and calc-show-plain
- (setq str (concat open-plain
- (math-showing-full-precision
- (math-format-flat-expr val 0))
- close-plain
- str)))
- (save-excursion
- (calc-embedded-original-buffer t info)
- (or (equal str (aref info 6))
- (let ((delta (- (aref info 5) (aref info 3)))
- (buffer-read-only nil))
- (goto-char (aref info 2))
- (delete-region (point) (aref info 3))
- (and (> (nth 1 entry) (1+ extra))
- (aref info 7)
- (progn
- (aset info 7 nil)
- (delete-horizontal-space)
- (insert "\n\n")
- (delete-horizontal-space)
- (backward-char 1)))
- (insert str)
- (set-marker (aref info 3) (point))
- (set-marker (aref info 5) (+ (point) delta))
- (aset info 6 str))))))
- (if (eq (car-safe val) 'calcFunc-evalto)
- (progn
- (setq evalled (nth 2 val)
- val (nth 1 val))))
- (if (eq (car-safe val) 'calcFunc-assign)
- (progn
- (aset info 9 (nth 1 val))
- (aset info 11 (or evalled
- (let ((calc-embedded-info info))
- (math-evaluate-expr (nth 2 val)))))
- (or (equal old-eval (aref info 11))
- (calc-embedded-var-change (nth 1 val) (aref info 0))))
- (if (eq (car-safe old-val) 'calcFunc-evalto)
- (setq old-val (nth 1 old-val)))
- (if (eq (car-safe old-val) 'calcFunc-assign)
- (calc-embedded-var-change (nth 1 old-val) (aref info 0)))))
- (set-buffer (aref info 1))
- (while prev-modes
- (cond ((eq (car (car prev-modes)) 'the-language)
- (if need-display
- (calc-embedded-set-language (cdr (car prev-modes)))))
- ((eq (car (car prev-modes)) 'the-display-just)
- (if need-display
- (calc-embedded-set-justify (cdr (car prev-modes)))))
- (t
- (set (car (car prev-modes)) (cdr (car prev-modes)))))
- (setq prev-modes (cdr prev-modes)))))
- )
-
-
-
-
- ;;; These are hooks called by the main part of Calc.
-
- (defun calc-embedded-select-buffer ()
- (if (eq (current-buffer) (aref calc-embedded-info 0))
- (let ((info calc-embedded-info)
- horiz vert)
- (if (and (or (< (point) (aref info 4))
- (> (point) (aref info 5)))
- (not calc-embedded-no-reselect))
- (let ((calc-embedded-quiet t))
- (message "(Switching Calc Embedded mode to new formula.)")
- (calc-embedded nil)
- (calc-embedded nil)))
- (setq horiz (max (min (current-column) (- (point) (aref info 2))) 0)
- vert (if (<= (aref info 2) (point))
- (- (count-lines (aref info 2) (point))
- (if (bolp) 0 1))
- 0))
- (set-buffer (aref info 1))
- (if calc-show-plain
- (if (= vert 0)
- (setq horiz 0)
- (setq vert (1- vert))))
- (calc-cursor-stack-index 1)
- (if calc-line-numbering
- (setq horiz (+ horiz 4)))
- (if (> vert 0)
- (forward-line vert))
- (forward-char (min horiz
- (- (point-max) (point)))))
- (calc-select-buffer))
- )
- (setq calc-embedded-no-reselect nil)
-
- (defun calc-embedded-finish-command ()
- (let ((buf (current-buffer))
- horiz vert)
- (save-excursion
- (set-buffer (aref calc-embedded-info 1))
- (if (> (calc-stack-size) 0)
- (let ((pt (point))
- (col (current-column))
- (bol (bolp)))
- (calc-cursor-stack-index 0)
- (if (< pt (point))
- (progn
- (calc-cursor-stack-index 1)
- (if (>= pt (point))
- (progn
- (setq horiz (- col (if calc-line-numbering 4 0))
- vert (- (count-lines (point) pt)
- (if bol 0 1)))
- (if calc-show-plain
- (setq vert (max 1 (1+ vert))))))))
- (goto-char pt))))
- (if horiz
- (progn
- (set-buffer (aref calc-embedded-info 0))
- (goto-char (aref calc-embedded-info 2))
- (if (> vert 0)
- (forward-line vert))
- (forward-char (max horiz 0))
- (set-buffer buf))))
- )
-
- (defun calc-embedded-stack-change ()
- (or calc-executing-macro
- (save-excursion
- (set-buffer (aref calc-embedded-info 1))
- (let* ((info calc-embedded-info)
- (extra-line (if (eq calc-language 'big) 1 0))
- (the-point (point))
- (empty (= (calc-stack-size) 0))
- (entry (if empty
- (list '(var empty var-empty) 1 nil)
- (calc-top 1 'entry)))
- (old-val (aref info 8))
- top bot str)
- (if empty
- (setq str "empty")
- (save-excursion
- (calc-cursor-stack-index 1)
- (setq top (point))
- (calc-cursor-stack-index 0)
- (setq bot (- (point) extra-line))
- (setq str (buffer-substring top (- bot 1))))
- (if calc-line-numbering
- (let ((pos 0))
- (setq str (substring str 4))
- (while (setq pos (string-match "\n...." str pos))
- (setq str (concat (substring str 0 (1+ pos))
- (substring str (+ pos 5)))
- pos (1+ pos))))))
- (calc-embedded-original-buffer t)
- (aset info 8 (car entry))
- (calc-embedded-update info 13 nil t str entry old-val))))
- )
-
- (defun calc-embedded-mode-line-change ()
- (let ((str mode-line-buffer-identification))
- (save-excursion
- (calc-embedded-original-buffer t)
- (setq mode-line-buffer-identification str)
- (set-buffer-modified-p (buffer-modified-p))))
- )
-
- (defun calc-embedded-modes-change (vars)
- (if (eq (car vars) 'calc-language) (setq vars '(the-language)))
- (if (eq (car vars) 'calc-display-just) (setq vars '(the-display-just)))
- (while (and vars
- (not (rassq (car vars) calc-embedded-mode-vars)))
- (setq vars (cdr vars)))
- (if (and vars calc-mode-save-mode (not (eq calc-mode-save-mode 'save)))
- (save-excursion
- (let* ((save-mode calc-mode-save-mode)
- (header (if (eq save-mode 'local)
- "calc-mode:"
- (format "calc-%s-mode:" save-mode)))
- (the-language (calc-embedded-language))
- (the-display-just (calc-embedded-justify))
- (values (mapcar 'symbol-value vars))
- (num (cond ((eq save-mode 'local) 12)
- ((eq save-mode 'edit) 13)
- ((eq save-mode 'perm) 14)
- (t nil)))
- base limit mname mlist)
- (calc-embedded-original-buffer t)
- (save-excursion
- (if (eq save-mode 'global)
- (setq base (point-max)
- limit (point-min)
- mlist calc-embedded-globals)
- (goto-char (aref calc-embedded-info 4))
- (beginning-of-line)
- (setq base (point)
- limit (max (- (point) 1000) (point-min))
- mlist (and num (aref calc-embedded-info num)))
- (and (re-search-backward
- (format "\\(%s\\)[^\001]*\\(%s\\)\\|\\[calc-defaults]"
- calc-embedded-open-formula
- calc-embedded-close-formula) limit t)
- (setq limit (point))))
- (while vars
- (goto-char base)
- (if (setq mname (car (rassq (car vars)
- calc-embedded-mode-vars)))
- (let ((buffer-read-only nil)
- (found (assq (car vars) mlist)))
- (if found
- (setcdr found (car values))
- (setq mlist (cons (cons (car vars) (car values)) mlist))
- (if num
- (aset calc-embedded-info num mlist)
- (if (eq save-mode 'global)
- (setq calc-embedded-globals mlist))))
- (if (re-search-backward
- (format "\\[%s *%s: *\\(\"\\([^\"\n\\]\\|\\\\.\\)*\"\\|[- ()a-zA-Z0-9]+\\)]"
- header mname)
- limit t)
- (progn
- (goto-char (match-beginning 1))
- (delete-region (point) (match-end 1))
- (insert (prin1-to-string (car values))))
- (goto-char base)
- (insert-before-markers
- calc-embedded-open-mode
- "[" header " " mname ": "
- (prin1-to-string (car values)) "]"
- calc-embedded-close-mode))))
- (setq vars (cdr vars)
- values (cdr values)))))))
- )
-
- (defun calc-embedded-var-change (var &optional buf)
- (if (symbolp var)
- (setq var (list 'var
- (if (string-match "\\`var-.+\\'"
- (symbol-name var))
- (intern (substring (symbol-name var) 4))
- var)
- var)))
- (save-excursion
- (let ((manual (not calc-auto-recompute))
- (bp calc-embedded-active)
- (first t))
- (if buf (setq bp (memq (assq buf bp) bp)))
- (while bp
- (let ((calc-embedded-no-reselect t)
- (p (and (buffer-name (car (car bp)))
- (cdr (car bp)))))
- (while p
- (if (assoc var (aref (car p) 10))
- (if manual
- (if (aref (car p) 11)
- (progn
- (aset (car p) 11 nil)
- (if (aref (car p) 9)
- (calc-embedded-var-change (aref (car p) 9)))))
- (set-buffer (aref (car p) 0))
- (if (equal (buffer-substring (aref (car p) 2)
- (aref (car p) 3))
- (aref (car p) 6))
- (let ((calc-embedded-info nil))
- (or calc-embedded-quiet
- (message "Recomputing..."))
- (setq first nil)
- (calc-wrapper
- (set-buffer (aref (car p) 0))
- (calc-embedded-update (car p) 14 t nil)))
- (setcdr (car bp) (delq (car p) (cdr (car bp))))
- (message
- "(Tried to recompute but formula was changed or missing.)"))))
- (setq p (cdr p))))
- (setq bp (if buf nil (cdr bp))))
- (or first calc-embedded-quiet (message ""))))
- )
-
-
-
-
-
-