;;; calc-embed.el --- embed Calc in a buffer
-;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
+;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
+;; 2005, 2006 Free Software Foundation, Inc.
;; Author: David Gillespie <daveg@synaptics.com>
;; Maintainer: Jay Belanger <belanger@truman.edu>
(defvar calc-embedded-some-active nil)
(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.")
-
+;; The following variables are customizable and defined in calc.el.
+(defvar calc-embedded-announce-formula)
+(defvar calc-embedded-open-formula)
+(defvar calc-embedded-close-formula)
+(defvar calc-embedded-open-word)
+(defvar calc-embedded-close-word)
+(defvar calc-embedded-open-plain)
+(defvar calc-embedded-close-plain)
+(defvar calc-embedded-open-new-formula)
+(defvar calc-embedded-close-new-formula)
+(defvar calc-embedded-open-mode)
+(defvar calc-embedded-close-mode)
(defconst calc-embedded-mode-vars '(("precision" . calc-internal-prec)
("word-size" . calc-word-size)
;;; rather than using buffer-local variables because the latter are
;;; thrown away when a buffer changes major modes.
+(defvar calc-embedded-original-modes nil
+ "The mode settings for Calc buffer when put in embedded mode.")
+
+(defun calc-embedded-save-original-modes ()
+ "Save the current Calc modes when entereding embedded mode."
+ (let ((calcbuf (save-excursion
+ (calc-create-buffer)
+ (current-buffer)))
+ lang modes)
+ (if calcbuf
+ (with-current-buffer calcbuf
+ (setq lang
+ (cons calc-language calc-language-option))
+ (setq modes
+ (list (cons 'calc-display-just
+ calc-display-just)
+ (cons 'calc-display-origin
+ calc-display-origin)))
+ (let ((v calc-embedded-mode-vars))
+ (while v
+ (let ((var (cdr (car v))))
+ (unless (memq var '(the-language the-display-just))
+ (setq modes
+ (cons (cons var (symbol-value var))
+ modes))))
+ (setq v (cdr v))))
+ (setq calc-embedded-original-modes (cons lang modes)))
+ (setq calc-embedded-original-modes nil))))
+
+(defun calc-embedded-preserve-modes ()
+ "Preserve the current modes when leaving embedded mode."
+ (interactive)
+ (if calc-embedded-info
+ (progn
+ (calc-embedded-save-original-modes)
+ (message "Current modes will be preserved when leaving embedded mode."))
+ (message "Not in embedded mode.")))
+
+(defun calc-embedded-restore-original-modes ()
+ "Restore the original Calc modes when leaving embedded mode."
+ (let ((calcbuf (get-buffer "*Calculator*"))
+ (changed nil)
+ (lang (car calc-embedded-original-modes))
+ (modes (cdr calc-embedded-original-modes)))
+ (if (and calcbuf calc-embedded-original-modes)
+ (with-current-buffer calcbuf
+ (unless (and
+ (equal calc-language (car lang))
+ (equal calc-language-option (cdr lang)))
+ (calc-set-language (car lang) (cdr lang))
+ (setq changed t))
+ (while modes
+ (let ((mode (car modes)))
+ (unless (equal (symbol-value (car mode)) (cdr mode))
+ (set (car mode) (cdr mode))
+ (setq changed t)))
+ (setq modes (cdr modes)))
+ (when changed
+ (calc-refresh)
+ (calc-set-mode-line))))
+ (setq calc-embedded-original-modes nil)))
+
;; The variables calc-embed-outer-top, calc-embed-outer-bot,
;; calc-embed-top and calc-embed-bot are
;; local to calc-do-embedded, calc-embedded-mark-formula,
(defvar calc-embed-top)
(defvar calc-embed-bot)
+;; The variable calc-embed-arg is local to calc-do-embedded,
+;; calc-embedded-update-formula, calc-embedded-edit and
+;; calc-do-embedded-activate, but is used by
+;; calc-embedded-make-info, which is called by the above
+;; functions.
+(defvar calc-embed-arg)
+
(defvar calc-embedded-quiet nil)
-(defun calc-do-embedded (arg end obeg oend)
+
+(defvar calc-embedded-firsttime)
+(defvar calc-embedded-firsttime-buf)
+(defvar calc-embedded-firsttime-formula)
+
+;; The following is to take care of any minor modes which override
+;; a Calc command.
+(defvar calc-override-minor-modes-map
+ (make-sparse-keymap)
+ "A list of keybindings that might be overwritten by minor modes.")
+
+;; Add any keys that might be overwritten here.
+(define-key calc-override-minor-modes-map "`" 'calc-edit)
+
+(defvar calc-override-minor-modes
+ (cons t calc-override-minor-modes-map))
+
+(defun calc-do-embedded (calc-embed-arg end obeg oend)
(if calc-embedded-info
;; Turn embedded mode off or switch to a new buffer.
truncate-lines (nth 2 mode)
buffer-read-only nil)
(use-local-map (nth 1 mode))
+ (setq minor-mode-overriding-map-alist
+ (remq calc-override-minor-modes minor-mode-overriding-map-alist))
(set-buffer-modified-p (buffer-modified-p))
+ (calc-embedded-restore-original-modes)
(or calc-embedded-quiet
(message "Back to %s mode" mode-name))))
(buffer-name)))
(keyboard-quit))
(calc-embedded nil)))
- (calc-embedded arg end obeg oend)))
+ (calc-embedded calc-embed-arg end obeg oend)))
;; Turn embedded mode on.
(calc-plain-buffer-only)
(let ((modes (list mode-line-buffer-identification
(current-local-map)
truncate-lines))
+ (calc-embedded-firsttime (not calc-embedded-active))
+ (calc-embedded-firsttime-buf nil)
+ (calc-embedded-firsttime-formula nil)
calc-embed-top calc-embed-bot calc-embed-outer-top calc-embed-outer-bot
info chg ident)
(barf-if-buffer-read-only)
+ (calc-embedded-save-original-modes)
(or calc-embedded-globals
(calc-find-globals))
- (setq info (calc-embedded-make-info (point) nil t arg end obeg oend))
+ (setq info
+ (calc-embedded-make-info (point) nil t calc-embed-arg end obeg oend))
(if (eq (car-safe (aref info 8)) 'error)
(progn
+ (setq calc-embedded-original-modes nil)
(goto-char (nth 1 (aref info 8)))
(error (nth 2 (aref info 8)))))
(let ((mode-line-buffer-identification mode-line-buffer-identification)
(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)))
+ (progn
+ (calc-push (calc-normalize (aref info 8)))
+ (setq chg (calc-embedded-set-modes
+ (aref info 15) (aref info 12) (aref info 13))))
+ (setq chg (calc-embedded-set-modes
+ (aref info 15) (aref info 12) (aref info 13)))
(calc-alg-entry)))
(setq calc-undo-list nil
calc-redo-list nil
buffer-read-only t)
(set-buffer-modified-p (buffer-modified-p))
(use-local-map calc-mode-map)
+ (setq minor-mode-overriding-map-alist
+ (cons calc-override-minor-modes
+ minor-mode-overriding-map-alist))
(setq calc-no-refresh-evaltos nil)
(and chg calc-any-evaltos (calc-wrapper (calc-refresh-evaltos)))
+ (let (str)
+ (save-excursion
+ (calc-select-buffer)
+ (setq str mode-line-buffer-identification))
+ (unless (equal str mode-line-buffer-identification)
+ (setq mode-line-buffer-identification str)
+ (set-buffer-modified-p (buffer-modified-p))))
+ (if calc-embedded-firsttime
+ (run-hooks 'calc-embedded-mode-hook))
+ (if calc-embedded-firsttime-buf
+ (run-hooks 'calc-embedded-new-buffer-hook))
+ (if calc-embedded-firsttime-formula
+ (run-hooks 'calc-embedded-new-formula-hook))
(or (eq calc-embedded-quiet t)
(message "Embedded Calc mode enabled; %s to return to normal"
(if calc-embedded-quiet
- "Type `M-# x'"
+ "Type `C-x * x'"
"Give this command again")))))
(scroll-down 0)) ; fix a bug which occurs when truncate-lines is changed.
(calc-select-part 2)))
-(defun calc-embedded-update-formula (arg)
+(defun calc-embedded-update-formula (calc-embed-arg)
(interactive "P")
- (if arg
+ (if calc-embed-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))
+ (or (not (consp calc-embed-arg))
(and (<= (aref (car entry) 2) (region-beginning))
(>= (aref (car entry) 3) (region-end))))
(save-excursion
(goto-char (+ (aref info 4) pt))))))))
-(defun calc-embedded-edit (arg)
+(defun calc-embedded-edit (calc-embed-arg)
(interactive "P")
- (let ((info (calc-embedded-make-info (point) nil t arg))
+ (let ((info (calc-embedded-make-info (point) nil t calc-embed-arg))
str)
(if (eq (car-safe (aref info 8)) 'error)
(progn
(calc-show-edit-buffer))
(defvar calc-original-buffer)
-
+(defvar calc-edit-top)
(defun calc-embedded-finish-edit (info)
(let ((buf (current-buffer))
- (str (buffer-substring (point) (point-max)))
+ (str (buffer-substring calc-edit-top (point-max)))
(start (point))
pos)
(switch-to-buffer calc-original-buffer)
(aset info 8 val)
(calc-embedded-update info 14 t t))))
-(defun calc-do-embedded-activate (arg cbuf)
+(defun calc-do-embedded-activate (calc-embed-arg cbuf)
(calc-plain-buffer-only)
- (if arg
+ (if calc-embed-arg
(calc-embedded-forget))
(calc-find-globals)
- (if (< (prefix-numeric-value arg) 0)
+ (if (< (prefix-numeric-value calc-embed-arg) 0)
(message "Deactivating %s for Calc Embedded mode" (buffer-name))
(message "Activating %s for Calc Embedded mode..." (buffer-name))
(save-excursion
(defun calc-embedded-word ()
(interactive)
- (calc-embedded '(4)))
+ (calc-embedded '(t)))
(defun calc-embedded-mark-formula (&optional body-only)
"Put point at the beginning of this Calc formula, mark at the end.
(forward-char -1))
(setq calc-embed-outer-top (point))
(goto-char (match-end 0))
+ (if (looking-at "[ \t]*$")
+ (end-of-line))
(if (eq (following-char) ?\n)
(forward-char 1))
(or (bolp)
(setq no-defaults nil)))
(backward-char 6))
(goto-char save-pt)
+ (unless (assq 'the-language modes)
+ (let ((lang (assoc major-mode calc-language-alist)))
+ (if lang
+ (setq modes (cons (cons 'the-language (cdr lang))
+ modes)))))
(list modes emodes pmodes)))
;; The variable calc-embed-vars-used is local to calc-embedded-make-info,
(new-info nil)
info str)
(or found
- (setq found (list (current-buffer))
- calc-embedded-active (cons found calc-embedded-active)))
+ (and
+ (setq found (list (current-buffer))
+ calc-embedded-active (cons found calc-embedded-active)
+ calc-embedded-firsttime-buf t)
+ (let ((newann (assoc major-mode calc-embedded-announce-formula-alist))
+ (newform (assoc major-mode calc-embedded-open-close-formula-alist))
+ (newword (assoc major-mode calc-embedded-open-close-word-alist))
+ (newplain (assoc major-mode calc-embedded-open-close-plain-alist))
+ (newnewform
+ (assoc major-mode calc-embedded-open-close-new-formula-alist))
+ (newmode (assoc major-mode calc-embedded-open-close-mode-alist)))
+ (when newann
+ (make-local-variable 'calc-embedded-announce-formula)
+ (setq calc-embedded-announce-formula (cdr newann)))
+ (when newform
+ (make-local-variable 'calc-embedded-open-formula)
+ (make-local-variable 'calc-embedded-close-formula)
+ (setq calc-embedded-open-formula (nth 0 (cdr newform)))
+ (setq calc-embedded-close-formula (nth 1 (cdr newform))))
+ (when newword
+ (make-local-variable 'calc-embedded-open-word)
+ (make-local-variable 'calc-embedded-close-word)
+ (setq calc-embedded-open-word (nth 0 (cdr newword)))
+ (setq calc-embedded-close-word (nth 1 (cdr newword))))
+ (when newplain
+ (make-local-variable 'calc-embedded-open-plain)
+ (make-local-variable 'calc-embedded-close-plain)
+ (setq calc-embedded-open-plain (nth 0 (cdr newplain)))
+ (setq calc-embedded-close-plain (nth 1 (cdr newplain))))
+ (when newnewform
+ (make-local-variable 'calc-embedded-open-new-formula)
+ (make-local-variable 'calc-embedded-close-new-formula)
+ (setq calc-embedded-open-new-formula (nth 0 (cdr newnewform)))
+ (setq calc-embedded-close-new-formula (nth 1 (cdr newnewform))))
+ (when newmode
+ (make-local-variable 'calc-embedded-open-mode)
+ (make-local-variable 'calc-embedded-close-mode)
+ (setq calc-embedded-open-mode (nth 0 (cdr newmode)))
+ (setq calc-embedded-close-mode (nth 1 (cdr newmode)))))))
(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 (nth 1 found))
+ (setq calc-embedded-firsttime-formula t)
(setq info (make-vector 16 nil)
new-info t
fresh t)
(aset info 1 (or cbuf (save-excursion
(calc-create-buffer)
(current-buffer)))))
- (if (and (integerp calc-embed-top) (not calc-embed-bot))
+ (if (and
+ (or (integerp calc-embed-top) (equal calc-embed-top '(4)))
+ (not calc-embed-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)))
+ (if (equal calc-embed-top '(4))
+ (progn
+ (aset info 2 (copy-marker (line-beginning-position)))
+ (aset info 3 (copy-marker (line-end-position))))
+ (if (= (setq calc-embed-arg (prefix-numeric-value calc-embed-arg)) 0)
+ (progn
+ (aset info 2 (copy-marker (region-beginning)))
+ (aset info 3 (copy-marker (region-end))))
+ (aset info (if (> calc-embed-arg 0) 2 3) (point-marker))
+ (if (> calc-embed-arg 0)
+ (progn
+ (forward-line (1- calc-embed-arg))
+ (end-of-line))
+ (forward-line (1+ calc-embed-arg)))
+ (aset info (if (> calc-embed-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)
(substring str pref-len suff-pos)))
(if (string-match "[^ \t\n]" str)
(setq pref-len 0
- val (math-read-big-expr str))
+ val (condition-case nil
+ (math-read-big-expr str)
+ (error (math-read-expr str))))
(setq val nil))))
(if (eq (car-safe val) 'error)
(setq val (list 'error
(while (setq x (cdr x))
(calc-embedded-find-vars (car x))))))
-
+(defvar math-ms-args)
(defun calc-embedded-evaluate-expr (x)
(let ((calc-embed-vars-used (aref calc-embedded-info 10)))
(or calc-embed-vars-used (calc-embedded-find-vars x))
(if calc-embed-vars-used
(let ((active (assq (aref calc-embedded-info 0) calc-embedded-active))
- (args nil))
+ (math-ms-args nil))
(save-excursion
(calc-embedded-original-buffer t)
(or active
(setq val (nth 2 val)))
(if (eq (car-safe val) 'calcFunc-assign)
(setq val (nth 2 val)))
- (setq args (cons (cons var val) args)))
+ (setq math-ms-args (cons (cons var val) math-ms-args)))
(calc-embedded-activate)
(calc-embedded-eval-get-var var base))))))
(calc-embedded-original-buffer t info)
(or (equal str (aref info 6))
(let ((delta (- (aref info 5) (aref info 3)))
+ (adjbot 0)
(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)))
+ (if (looking-at "\n")
+ ;; If there's a newline there, don't add one
+ (insert "\n")
+ (insert "\n\n")
+ (delete-horizontal-space)
+ (setq adjbot 1)
+; (setq delta (1+ delta))
+ (backward-char 1))))
(insert str)
- (set-marker (aref info 3) (point))
+ (set-marker (aref info 3) (+ (point) adjbot))
(set-marker (aref info 5) (+ (point) delta))
(aset info 6 str))))))
(if (eq (car-safe val) 'calcFunc-evalto)
(prin1-to-string (car values)) "]"
calc-embedded-close-mode))))
(setq vars (cdr vars)
- values (cdr values))))))))
+ values (cdr values))))))
+ (when (and vars (eq calc-mode-save-mode 'save))
+ (calc-embedded-save-original-modes))))
(defun calc-embedded-var-change (var &optional buf)
(if (symbolp var)