X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/4351784fd89d5272a0464699c05ee44a3dc461ca..6d8cf83040cdb54a0b1d72bd6a021f9815bd4af2:/lisp/calculator.el diff --git a/lisp/calculator.el b/lisp/calculator.el index b0ca5b4f44..b9ba03f657 100644 --- a/lisp/calculator.el +++ b/lisp/calculator.el @@ -1,10 +1,11 @@ ;;; calculator.el --- a [not so] simple calculator for Emacs -;; Copyright (C) 1998, 2000, 2001 by Free Software Foundation, Inc. +;; Copyright (C) 1998, 2000, 2001, 2002, 2003, 2004, +;; 2005 Free Software Foundation, Inc. ;; Author: Eli Barzilay ;; Keywords: tools, convenience -;; Time-stamp: <2001-09-23 02:24:35 eli> +;; Time-stamp: <2005-07-18 17:45:34 juri> ;; This file is part of GNU Emacs. @@ -20,8 +21,8 @@ ;; You should have received a copy of the GNU General Public License ;; along with GNU Emacs; see the file COPYING. If not, write to the -;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, -;; MA 02111-1307, USA. +;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, +;; MA 02110-1301, USA. ;;;===================================================================== ;;; Commentary: @@ -101,6 +102,26 @@ at runtime." :type 'integer :group 'calculator) +(defcustom calculator-radix-grouping-mode t + "*Use digit grouping in radix output mode. +If this is set, chunks of `calculator-radix-grouping-digits' characters +will be separated by `calculator-radix-grouping-separator' when in radix +output mode is active (determined by `calculator-output-radix')." + :type 'boolean + :group 'calculator) + +(defcustom calculator-radix-grouping-digits 4 + "*The number of digits used for grouping display in radix modes. +See `calculator-radix-grouping-mode'." + :type 'integer + :group 'calculator) + +(defcustom calculator-radix-grouping-separator "'" + "*The separator used in radix grouping display. +See `calculator-radix-grouping-mode'." + :type 'string + :group 'calculator) + (defcustom calculator-remove-zeros t "*Non-nil value means delete all redundant zero decimal digits. If this value is not t, and not nil, redundant zeros are removed except @@ -126,17 +147,18 @@ of digits displayed). An exception to the above is the case of the list (std C) where C is a character, in this case the `calculator-standard-displayer' function -will be used with this character for a format string.") +will be used with this character for a format string." + :group 'calculator) (defcustom calculator-displayers - '(((std ?n) "Standard dislpay, decimal point or scientific") + '(((std ?n) "Standard display, decimal point or scientific") (calculator-eng-display "Eng display") ((std ?f) "Standard display, decimal point") - ((std ?e) "Standard dislpay, scientific") + ((std ?e) "Standard display, scientific") ("%S" "Emacs printer")) "*A list of displayers. Each element is a list of a displayer and a description string. The -first element is the one which is curently used, this is for the display +first element is the one which is currently used, this is for the display of result values not values in expressions. A displayer specification is the same as the values that can be stored in `calculator-displayer'. @@ -155,7 +177,9 @@ floats, otherwise the Emacs reader will fail on them." "*If non-nil, this is any value that can be used for `calculator-displayer', to format a string before copying it with `calculator-copy'. If nil, then `calculator-displayer's normal value is -used.") +used." + :type 'boolean + :group 'calculator) (defcustom calculator-2s-complement nil "*If non-nil, show negative numbers in 2s complement in radix modes. @@ -164,7 +188,11 @@ Otherwise show as a negative number." :group 'calculator) (defcustom calculator-mode-hook nil - "*List of hook functions for `calculator-mode' to run." + "*List of hook functions for `calculator-mode' to run. +Note: if `calculator-electric-mode' is on, then this hook will get +activated in the minibuffer - in that case it should not do much more +than local key settings and other effects that will change things +outside the scope of calculator related code." :type 'hook :group 'calculator) @@ -388,7 +416,7 @@ Used for repeating operations in calculator-repR/L.") "oD" "oH" "oX" "oO" "oB") (calculator-rotate-displayer "'") (calculator-rotate-displayer-back "\"") - (calculator-displayer-pref "{") + (calculator-displayer-prev "{") (calculator-displayer-next "}") (calculator-saved-up [up] [?\C-p]) (calculator-saved-down [down] [?\C-n]) @@ -400,10 +428,10 @@ Used for repeating operations in calculator-repR/L.") (calculator-save-and-quit [(control return)] [(control kp-enter)]) (calculator-paste [insert] [(shift insert)] - [mouse-2]) + [paste] [mouse-2] [?\C-y]) (calculator-clear [delete] [?\C-?] [?\C-d]) (calculator-help [?h] [??] [f1] [help]) - (calculator-copy [(control insert)]) + (calculator-copy [(control insert)] [copy]) (calculator-backspace [backspace]) ))) (while p @@ -537,7 +565,7 @@ Used for repeating operations in calculator-repR/L.") ,@(mapcar (lambda (x) (nth 1 x)) radix-selectors) "---" ,@(mapcar (lambda (x) (nth 2 x)) radix-selectors))) - ("Decimal Dislpay" + ("Decimal Display" ,@(mapcar (lambda (d) (vector (cadr d) ;; Note: inserts actual object here @@ -612,10 +640,11 @@ The prompt indicates the current modes: * \"=?\": (? is B/O/H) the display radix (when input is decimal); * \"??\": (? is D/B/O/H) 1st char for input radix, 2nd for display. -Also, the quote character can be used to switch display modes for -decimal numbers (double-quote rotates back), and the two brace -characters (\"{\" and \"}\" change display parameters that these -displayers use (if they handle such). +Also, the quote key can be used to switch display modes for decimal +numbers (double-quote rotates back), and the two brace characters +\(\"{\" and \"}\" change display parameters that these displayers use (if +they handle such). If output is using any radix mode, then these keys +toggle digit grouping mode and the chunk size. Values can be saved for future reference in either a list of saved values, or in registers. @@ -652,7 +681,7 @@ more information. (setq major-mode 'calculator-mode) (setq mode-name "Calculator") (use-local-map calculator-mode-map) - (run-hooks 'calculator-mode-hook)) + (run-mode-hooks 'calculator-mode-hook)) (eval-when-compile (require 'electric) (require 'ehelp)) @@ -669,14 +698,13 @@ See the documentation for `calculator-mode' for more information." ;; don't change this since it is a customization variable, ;; its set function will add any new operators (calculator-add-operators calculator-user-operators))) + (setq calculator-buffer (get-buffer-create "*calculator*")) (if calculator-electric-mode (save-window-excursion (progn (require 'electric) (message nil)) ; hide load message (let (old-g-map old-l-map (echo-keystrokes 0) (garbage-collection-messages nil)) ; no gc msg when electric - ;; strange behavior in FSF: doesn't always select correct - ;; minibuffer. I have no idea how to fix this - (setq calculator-buffer (window-buffer (minibuffer-window))) + (set-window-buffer (minibuffer-window) calculator-buffer) (select-window (minibuffer-window)) (calculator-reset) (calculator-update-display) @@ -685,6 +713,7 @@ See the documentation for `calculator-mode' for more information." (setq calculator-saved-global-map (current-global-map)) (use-local-map nil) (use-global-map calculator-mode-map) + (run-hooks 'calculator-mode-hook) (unwind-protect (catch 'calculator-done (Electric-command-loop @@ -698,7 +727,6 @@ See the documentation for `calculator-mode' for more information." (use-local-map old-l-map) (use-global-map old-g-map)))) (progn - (setq calculator-buffer (get-buffer-create "*calculator*")) (cond ((not (get-buffer-window calculator-buffer)) (let ((split-window-keep-point nil) @@ -720,8 +748,14 @@ See the documentation for `calculator-mode' for more information." (if (and calculator-restart-other-mode calculator-electric-mode) (calculator))) +(defun calculator-message (string &rest arguments) + "Same as `message', but special handle of electric mode." + (apply 'message string arguments) + (if calculator-electric-mode + (progn (sit-for 1) (message nil)))) + ;;;--------------------------------------------------------------------- -;;; Operatos +;;; Operators (defun calculator-op-arity (op) "Return OP's arity, 2, +1 or -1." @@ -821,82 +855,116 @@ The string is set not to exceed the screen width." (concat calculator-prompt (substring prompt (+ trim (length calculator-prompt))))))) -(defun calculator-curnum-value () - "Get the numeric value of the displayed number string as a float." +(defun calculator-string-to-number (str) + "Convert the given STR to a number, according to the value of +`calculator-input-radix'." (if calculator-input-radix (let ((radix (cdr (assq calculator-input-radix '((bin . 2) (oct . 8) (hex . 16))))) - (i -1) (value 0)) - ;; assume valid input (upcased & characters in range) - (while (< (setq i (1+ i)) (length calculator-curnum)) - (setq value - (+ (let ((ch (aref calculator-curnum i))) - (- ch (if (<= ch ?9) ?0 (- ?A 10)))) - (* radix value)))) + (i -1) (value 0) (new-value 0)) + ;; assume mostly valid input (e.g., characters in range) + (while (< (setq i (1+ i)) (length str)) + (setq new-value + (let* ((ch (upcase (aref str i))) + (n (cond ((< ch ?0) nil) + ((<= ch ?9) (- ch ?0)) + ((< ch ?A) nil) + ((<= ch ?Z) (- ch (- ?A 10))) + (t nil)))) + (if (and n (<= 0 n) (< n radix)) + (+ n (* radix value)) + (progn + (calculator-message + "Warning: Ignoring bad input character `%c'." ch) + (sit-for 1) + value)))) + (if (if (< new-value 0) (> value 0) (< value 0)) + (calculator-message "Warning: Overflow in input.")) + (setq value new-value)) value) - (car - (read-from-string - (cond - ((equal "." calculator-curnum) - "0.0") - ((string-match "[eE][+-]?$" calculator-curnum) - (concat calculator-curnum "0")) - ((string-match "\\.[0-9]\\|[eE]" calculator-curnum) - calculator-curnum) - ((string-match "\\." calculator-curnum) - ;; do this because Emacs reads "23." as an integer - (concat calculator-curnum "0")) - ((stringp calculator-curnum) - (concat calculator-curnum ".0")) - (t "0.0")))))) + (car (read-from-string + (cond ((equal "." str) "0.0") + ((string-match "[eE][+-]?$" str) (concat str "0")) + ((string-match "\\.[0-9]\\|[eE]" str) str) + ((string-match "\\." str) + ;; do this because Emacs reads "23." as an integer + (concat str "0")) + ((stringp str) (concat str ".0")) + (t "0.0")))))) + +(defun calculator-curnum-value () + "Get the numeric value of the displayed number string as a float." + (calculator-string-to-number calculator-curnum)) (defun calculator-rotate-displayer (&optional new-disp) "Switch to the next displayer on the `calculator-displayers' list. Can be called with an optional argument NEW-DISP to force rotation to -that argument." +that argument. +If radix output mode is active, toggle digit grouping." (interactive) - (setq calculator-displayers - (if (and new-disp (memq new-disp calculator-displayers)) - (let ((tmp nil)) - (while (not (eq (car calculator-displayers) new-disp)) - (setq tmp (cons (car calculator-displayers) tmp)) - (setq calculator-displayers (cdr calculator-displayers))) - (setq calculator-displayers - (nconc calculator-displayers (nreverse tmp)))) - (nconc (cdr calculator-displayers) - (list (car calculator-displayers))))) - (message "Using %s." (cadr (car calculator-displayers))) - (if calculator-electric-mode - (progn (sit-for 1) (message nil))) + (cond + (calculator-output-radix + (setq calculator-radix-grouping-mode + (not calculator-radix-grouping-mode)) + (calculator-message + "Digit grouping mode %s." + (if calculator-radix-grouping-mode "ON" "OFF"))) + (t + (setq calculator-displayers + (if (and new-disp (memq new-disp calculator-displayers)) + (let ((tmp nil)) + (while (not (eq (car calculator-displayers) new-disp)) + (setq tmp (cons (car calculator-displayers) tmp)) + (setq calculator-displayers + (cdr calculator-displayers))) + (setq calculator-displayers + (nconc calculator-displayers (nreverse tmp)))) + (nconc (cdr calculator-displayers) + (list (car calculator-displayers))))) + (calculator-message + "Using %s." (cadr (car calculator-displayers))))) (calculator-enter)) (defun calculator-rotate-displayer-back () - "Like `calculator-rotate-displayer', but rotates modes back." + "Like `calculator-rotate-displayer', but rotates modes back. +If radix output mode is active, toggle digit grouping." (interactive) (calculator-rotate-displayer (car (last calculator-displayers)))) (defun calculator-displayer-prev () "Send the current displayer function a 'left argument. This is used to modify display arguments (if the current displayer -function supports this)." +function supports this). +If radix output mode is active, increase the grouping size." (interactive) - (and (car calculator-displayers) - (let ((disp (caar calculator-displayers))) - (cond ((symbolp disp) (funcall disp 'left)) - ((and (consp disp) (eq 'std (car disp))) - (calculator-standard-displayer 'left (cadr disp))))))) + (if calculator-output-radix + (progn (setq calculator-radix-grouping-digits + (1+ calculator-radix-grouping-digits)) + (calculator-enter)) + (and (car calculator-displayers) + (let ((disp (caar calculator-displayers))) + (cond + ((symbolp disp) (funcall disp 'left)) + ((and (consp disp) (eq 'std (car disp))) + (calculator-standard-displayer 'left (cadr disp)))))))) (defun calculator-displayer-next () "Send the current displayer function a 'right argument. This is used to modify display arguments (if the current displayer -function supports this)." +function supports this). +If radix output mode is active, decrease the grouping size." (interactive) - (and (car calculator-displayers) - (let ((disp (caar calculator-displayers))) - (cond ((symbolp disp) (funcall disp 'right)) - ((and (consp disp) (eq 'std (car disp))) - (calculator-standard-displayer 'right (cadr disp))))))) + (if calculator-output-radix + (progn (setq calculator-radix-grouping-digits + (max 2 (1- calculator-radix-grouping-digits))) + (calculator-enter)) + (and (car calculator-displayers) + (let ((disp (caar calculator-displayers))) + (cond + ((symbolp disp) (funcall disp 'right)) + ((and (consp disp) (eq 'std (car disp))) + (calculator-standard-displayer 'right (cadr disp)))))))) (defun calculator-remove-zeros (numstr) "Get a number string NUMSTR and remove unnecessary zeroes. @@ -988,7 +1056,9 @@ the 'left or 'right when one of the standard modes is used." (setq num (/ num 1000.0)) (setq exp (+ exp 3)) (setq i (1+ i))))))) (or calculator-eng-tmp-show (setq calculator-eng-extra nil)) - (let ((str (format (concat "%." calculator-number-digits "f") + (let ((str (format (concat "%." (number-to-string + calculator-number-digits) + "f") num))) (concat (let ((calculator-remove-zeros ;; make sure we don't leave integers @@ -996,7 +1066,7 @@ the 'left or 'right when one of the standard modes is used." (calculator-remove-zeros str)) "e" (number-to-string exp)))))) -(defun calculator-num-to-string (num) +(defun calculator-number-to-string (num) "Convert NUM to a displayable string." (cond ((and (numberp num) calculator-output-radix) @@ -1016,6 +1086,14 @@ the 'left or 'right when one of the standard modes is used." (?6 . "110") (?7 . "111"))))))) (string-match "^0*\\(.+\\)" s) (setq str (match-string 1 s)))) + (if calculator-radix-grouping-mode + (let ((d (/ (length str) calculator-radix-grouping-digits)) + (r (% (length str) calculator-radix-grouping-digits))) + (while (>= (setq d (1- d)) (if (zerop r) 1 0)) + (let ((i (+ r (* d calculator-radix-grouping-digits)))) + (setq str (concat (substring str 0 i) + calculator-radix-grouping-separator + (substring str i))))))) (upcase (if (and (not calculator-2s-complement) (< num 0)) (concat "-" str) @@ -1052,7 +1130,7 @@ If optional argument FORCE is non-nil, don't use the cached string." ;; customizable display for a single value (caar calculator-displayers) calculator-displayer))) - (mapconcat 'calculator-num-to-string + (mapconcat 'calculator-number-to-string (reverse calculator-stack) " ")) " " @@ -1200,12 +1278,6 @@ arguments." (if Dbound (fset 'D Dsave) (fmakunbound 'D))))) (error 0))) -(eval-when-compile ; silence the compiler - (or (fboundp 'event-key) - (defun event-key (&rest _) nil)) - (or (fboundp 'key-press-event-p) - (defun key-press-event-p (&rest _) nil))) - ;;;--------------------------------------------------------------------- ;;; Input interaction @@ -1224,8 +1296,9 @@ Optional string argument KEYS will force using it as the keys entered." (setq k (aref inp i)) ;; if Emacs will someday have a event-key, then this would ;; probably be modified anyway - (and (fboundp 'event-key) (key-press-event-p k) - (event-key k) (setq k (event-key k))) + (and (if (fboundp 'key-press-event-p) (key-press-event-p k)) + (if (fboundp 'event-key) + (and (event-key k) (setq k (event-key k))))) ;; assume all symbols are translatable with an ascii-character (and (symbolp k) (setq k (or (get k 'ascii-character) ? ))) @@ -1320,9 +1393,8 @@ Optional string argument KEYS will force using it as the keys entered." (if (not (and op (= -1 (calculator-op-arity op)))) ;;(error "Binary operator without a first operand") (progn - (message "Binary operator without a first operand") - (if calculator-electric-mode - (progn (sit-for 1) (message nil))) + (calculator-message + "Binary operator without a first operand") (throw 'op-error nil))))) (calculator-reduce-stack (cond ((eq (nth 1 op) '\() 10) @@ -1335,9 +1407,7 @@ Optional string argument KEYS will force using it as the keys entered." (not (numberp (car calculator-stack))))) ;;(error "Unterminated expression") (progn - (message "Unterminated expression") - (if calculator-electric-mode - (progn (sit-for 1) (message nil))) + (calculator-message "Unterminated expression") (throw 'op-error nil))) (setq calculator-stack (cons op calculator-stack)) (calculator-reduce-stack (calculator-op-prec op)) @@ -1525,7 +1595,7 @@ Optional string argument KEYS will force using it as the keys entered." (calculator-displayers (if calculator-copy-displayer nil calculator-displayers))) (calculator-enter) - ;; remove trailing spaces and and an index + ;; remove trailing spaces and an index (let ((s (cdr calculator-stack-display))) (and s (if (string-match "^\\([^ ]+\\) *\\(\\[[0-9/]+\\]\\)? *$" s) @@ -1541,7 +1611,7 @@ Optional string argument KEYS will force using it as the keys entered." (setcdr as val) (setq calculator-registers (cons (cons reg val) calculator-registers))) - (message (format "[%c] := %S" reg val)))) + (calculator-message "[%c] := %S" reg val))) (defun calculator-put-value (val) "Paste VAL as if entered. @@ -1553,24 +1623,26 @@ Used by `calculator-paste' and `get-register'." (progn (calculator-clear-fragile) (setq calculator-curnum (let ((calculator-displayer "%S")) - (calculator-num-to-string val))) + (calculator-number-to-string val))) (calculator-update-display)))) (defun calculator-paste () "Paste a value from the `kill-ring'." (interactive) (calculator-put-value - (let ((str (current-kill 0))) - (and calculator-paste-decimals + (let ((str (replace-regexp-in-string + "^ *\\(.+[^ ]\\) *$" "\\1" (current-kill 0)))) + (and (not calculator-input-radix) + calculator-paste-decimals (string-match "\\([0-9]+\\)\\(\\.[0-9]+\\)?\\(e[0-9]+\\)?" str) (or (match-string 1 str) (match-string 2 str) (match-string 3 str)) - (setq str (concat (match-string 1 str) + (setq str (concat (or (match-string 1 str) "0") (or (match-string 2 str) ".0") - (match-string 3 str)))) - (condition-case nil (car (read-from-string str)) + (or (match-string 3 str) "")))) + (condition-case nil (calculator-string-to-number str) (error nil))))) (defun calculator-get-register (reg) @@ -1679,7 +1751,7 @@ To use this, apply a binary operator (evaluate it), then call this." (while (> x 0) (setq r (* r (truncate x))) (setq x (1- x))) - r)) + (+ 0.0 r))) (defun calculator-truncate (n) "Truncate N, return 0 in case of overflow." @@ -1688,4 +1760,5 @@ To use this, apply a binary operator (evaluate it), then call this." (provide 'calculator) +;;; arch-tag: a1b9766c-af8a-4a74-b466-65ad8eeb0c73 ;;; calculator.el ends here