mirror/emacs
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-30 11:09:23 +00:00
Code Issues Releases Activity
8b9e43d1ce
emacs/lisp/calc/calc-aent.el
Jay Belanger ed805bee9d Updated copyright information.
2005-07-14 19:30:13 +00:00

1315 lines
43 KiB
EmacsLisp
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; calc-aent.el --- algebraic entry functions for Calc
;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
;; 2005 Free Software Foundation, Inc.
;; Author: Dave Gillespie <daveg@synaptics.com>
;; Maintainer: Jay Belanger <belanger@truman.edu>
;; 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.
;;; Commentary:
;;; Code:
;; This file is autoloaded from calc.el.
(require 'calc)
(require 'calc-macs)
(defun calc-do-quick-calc ()
(calc-check-defines)
(if (eq major-mode 'calc-mode)
(calc-algebraic-entry t)
(let (buf shortbuf)
(save-excursion
(calc-create-buffer)
(let* ((calc-command-flags nil)
(calc-dollar-values calc-quick-prev-results)
(calc-dollar-used 0)
(enable-recursive-minibuffers t)
(calc-language (if (memq calc-language '(nil big))
'flat calc-language))
(entry (calc-do-alg-entry "" "Quick calc: " t))
(alg-exp (mapcar (function
(lambda (x)
(if (and (not (featurep 'calc-ext))
calc-previous-alg-entry
(string-match
"\\`[-0-9._+*/^() ]+\\'"
calc-previous-alg-entry))
(calc-normalize x)
(require 'calc-ext)
(math-evaluate-expr x))))
entry)))
(when (and (= (length alg-exp) 1)
(eq (car-safe (car alg-exp)) 'calcFunc-assign)
(= (length (car alg-exp)) 3)
(eq (car-safe (nth 1 (car alg-exp))) 'var))
(require 'calc-ext)
(set (nth 2 (nth 1 (car alg-exp))) (nth 2 (car alg-exp)))
(calc-refresh-evaltos (nth 2 (nth 1 (car alg-exp))))
(setq alg-exp (list (nth 2 (car alg-exp)))))
(setq calc-quick-prev-results alg-exp
buf (mapconcat (function (lambda (x)
(math-format-value x 1000)))
alg-exp
" ")
shortbuf buf)
(if (and (= (length alg-exp) 1)
(memq (car-safe (car alg-exp)) '(nil bigpos bigneg))
(< (length buf) 20)
(= calc-number-radix 10))
(setq buf (concat buf " ("
(let ((calc-number-radix 16))
(math-format-value (car alg-exp) 1000))
", "
(let ((calc-number-radix 8))
(math-format-value (car alg-exp) 1000))
(if (and (integerp (car alg-exp))
(> (car alg-exp) 0)
(< (car alg-exp) 127))
(format ", \"%c\"" (car alg-exp))
"")
")")))
(if (and (< (length buf) (frame-width)) (= (length entry) 1)
(featurep 'calc-ext))
(let ((long (concat (math-format-value (car entry) 1000)
" => " buf)))
(if (<= (length long) (- (frame-width) 8))
(setq buf long))))
(calc-handle-whys)
(message "Result: %s" buf)))
(if (eq last-command-char 10)
(insert shortbuf)
(kill-new shortbuf)))))
(defun calc-do-calc-eval (str separator args)
(calc-check-defines)
(catch 'calc-error
(save-excursion
(calc-create-buffer)
(cond
((and (consp str) (not (symbolp (car str))))
(let ((calc-language nil)
(math-expr-opers math-standard-opers)
(calc-internal-prec 12)
(calc-word-size 32)
(calc-symbolic-mode nil)
(calc-matrix-mode nil)
(calc-angle-mode 'deg)
(calc-number-radix 10)
(calc-leading-zeros nil)
(calc-group-digits nil)
(calc-point-char ".")
(calc-frac-format '(":" nil))
(calc-prefer-frac nil)
(calc-hms-format "%s@ %s' %s\"")
(calc-date-format '((H ":" mm C SS pp " ")
Www " " Mmm " " D ", " YYYY))
(calc-float-format '(float 0))
(calc-full-float-format '(float 0))
(calc-complex-format nil)
(calc-matrix-just nil)
(calc-full-vectors t)
(calc-break-vectors nil)
(calc-vector-commas ",")
(calc-vector-brackets "[]")
(calc-matrix-brackets '(R O))
(calc-complex-mode 'cplx)
(calc-infinite-mode nil)
(calc-display-strings nil)
(calc-simplify-mode nil)
(calc-display-working-message 'lots)
(strp (cdr str)))
(while strp
(set (car strp) (nth 1 strp))
(setq strp (cdr (cdr strp))))
(calc-do-calc-eval (car str) separator args)))
((eq separator 'eval)
(eval str))
((eq separator 'macro)
(require 'calc-ext)
(let* ((calc-buffer (current-buffer))
(calc-window (get-buffer-window calc-buffer))
(save-window (selected-window)))
(if calc-window
(unwind-protect
(progn
(select-window calc-window)
(calc-execute-kbd-macro str nil (car args)))
(and (window-point save-window)
(select-window save-window)))
(save-window-excursion
(select-window (get-largest-window))
(switch-to-buffer calc-buffer)
(calc-execute-kbd-macro str nil (car args)))))
nil)
((eq separator 'pop)
(or (not (integerp str))
(= str 0)
(calc-pop (min str (calc-stack-size))))
(calc-stack-size))
((eq separator 'top)
(and (integerp str)
(> str 0)
(<= str (calc-stack-size))
(math-format-value (calc-top-n str (car args)) 1000)))
((eq separator 'rawtop)
(and (integerp str)
(> str 0)
(<= str (calc-stack-size))
(calc-top-n str (car args))))
(t
(let* ((calc-command-flags nil)
(calc-next-why nil)
(calc-language (if (memq calc-language '(nil big))
'flat calc-language))
(calc-dollar-values (mapcar
(function
(lambda (x)
(if (stringp x)
(progn
(setq x (math-read-exprs x))
(if (eq (car-safe x)
'error)
(throw 'calc-error
(calc-eval-error
(cdr x)))
(car x)))
x)))
args))
(calc-dollar-used 0)
(res (if (stringp str)
(math-read-exprs str)
(list str)))
buf)
(if (eq (car res) 'error)
(calc-eval-error (cdr res))
(setq res (mapcar 'calc-normalize res))
(and (memq 'clear-message calc-command-flags)
(message ""))
(cond ((eq separator 'pred)
(require 'calc-ext)
(if (= (length res) 1)
(math-is-true (car res))
(calc-eval-error '(0 "Single value expected"))))
((eq separator 'raw)
(if (= (length res) 1)
(car res)
(calc-eval-error '(0 "Single value expected"))))
((eq separator 'list)
res)
((memq separator '(num rawnum))
(if (= (length res) 1)
(if (math-constp (car res))
(if (eq separator 'num)
(math-format-value (car res) 1000)
(car res))
(calc-eval-error
(list 0
(if calc-next-why
(calc-explain-why (car calc-next-why))
"Number expected"))))
(calc-eval-error '(0 "Single value expected"))))
((eq separator 'push)
(calc-push-list res)
nil)
(t (while res
(setq buf (concat buf
(and buf (or separator ", "))
(math-format-value (car res) 1000))
res (cdr res)))
buf)))))))))
(defvar calc-eval-error nil
"Determines how calc handles errors.
NIL means return a list containing the character position of error.
STRING means return error message as string rather than list.
T means abort and give an error message.")
(defun calc-eval-error (msg)
(if calc-eval-error
(if (eq calc-eval-error 'string)
(nth 1 msg)
(error "%s" (nth 1 msg)))
msg))
;;;; Reading an expression in algebraic form.
(defun calc-auto-algebraic-entry (&optional prefix)
(interactive "P")
(calc-algebraic-entry prefix t))
(defun calc-algebraic-entry (&optional prefix auto)
(interactive "P")
(calc-wrapper
(let ((calc-language (if prefix nil calc-language))
(math-expr-opers (if prefix math-standard-opers math-expr-opers)))
(calc-alg-entry (and auto (char-to-string last-command-char))))))
(defun calc-alg-entry (&optional initial prompt)
(let* ((sel-mode nil)
(calc-dollar-values (mapcar 'calc-get-stack-element
(nthcdr calc-stack-top calc-stack)))
(calc-dollar-used 0)
(calc-plain-entry t)
(alg-exp (calc-do-alg-entry initial prompt t)))
(if (stringp alg-exp)
(progn
(require 'calc-ext)
(calc-alg-edit alg-exp))
(let* ((calc-simplify-mode (if (eq last-command-char ?\C-j)
'none
calc-simplify-mode))
(nvals (mapcar 'calc-normalize alg-exp)))
(while alg-exp
(calc-record (if (featurep 'calc-ext) (car alg-exp) (car nvals))
"alg'")
(calc-pop-push-record-list calc-dollar-used
(and (not (equal (car alg-exp)
(car nvals)))
(featurep 'calc-ext)
"")
(list (car nvals)))
(setq alg-exp (cdr alg-exp)
nvals (cdr nvals)
calc-dollar-used 0)))
(calc-handle-whys))))
(defvar calc-alg-ent-map nil
"The keymap used for algebraic entry.")
(defvar calc-alg-ent-esc-map nil
"The keymap used for escapes in algebraic entry.")
(defvar calc-alg-exp)
(defun calc-do-alg-entry (&optional initial prompt no-normalize)
(let* ((calc-buffer (current-buffer))
(blink-paren-function 'calcAlg-blink-matching-open)
(calc-alg-exp 'error))
(unless calc-alg-ent-map
(setq calc-alg-ent-map (copy-keymap minibuffer-local-map))
(define-key calc-alg-ent-map "'" 'calcAlg-previous)
(define-key calc-alg-ent-map "`" 'calcAlg-edit)
(define-key calc-alg-ent-map "\C-m" 'calcAlg-enter)
(define-key calc-alg-ent-map "\C-j" 'calcAlg-enter)
(let ((i 33))
(setq calc-alg-ent-esc-map (copy-keymap esc-map))
(while (< i 127)
(aset (nth 1 calc-alg-ent-esc-map) i 'calcAlg-escape)
(setq i (1+ i)))))
(define-key calc-alg-ent-map "\e" nil)
(if (eq calc-algebraic-mode 'total)
(define-key calc-alg-ent-map "\e" calc-alg-ent-esc-map)
(define-key calc-alg-ent-map "\ep" 'calcAlg-plus-minus)
(define-key calc-alg-ent-map "\em" 'calcAlg-mod)
(define-key calc-alg-ent-map "\e=" 'calcAlg-equals)
(define-key calc-alg-ent-map "\e\r" 'calcAlg-equals)
(define-key calc-alg-ent-map "\e%" 'self-insert-command))
(setq calc-aborted-prefix nil)
(let ((buf (read-from-minibuffer (or prompt "Algebraic: ")
(or initial "")
calc-alg-ent-map nil)))
(when (eq calc-alg-exp 'error)
(when (eq (car-safe (setq calc-alg-exp (math-read-exprs buf))) 'error)
(setq calc-alg-exp nil)))
(setq calc-aborted-prefix "alg'")
(or no-normalize
(and calc-alg-exp (setq calc-alg-exp (mapcar 'calc-normalize calc-alg-exp))))
calc-alg-exp)))
(defun calcAlg-plus-minus ()
(interactive)
(if (calc-minibuffer-contains ".* \\'")
(insert "+/- ")
(insert " +/- ")))
(defun calcAlg-mod ()
(interactive)
(if (not (calc-minibuffer-contains ".* \\'"))
(insert " "))
(if (calc-minibuffer-contains ".* mod +\\'")
(if calc-previous-modulo
(insert (math-format-flat-expr calc-previous-modulo 0))
(beep))
(insert "mod ")))
(defun calcAlg-previous ()
(interactive)
(if (calc-minibuffer-contains "\\'")
(if calc-previous-alg-entry
(insert calc-previous-alg-entry)
(beep))
(insert "'")))
(defun calcAlg-equals ()
(interactive)
(unwind-protect
(calcAlg-enter)
(if (consp calc-alg-exp)
(progn (setq prefix-arg (length calc-alg-exp))
(calc-unread-command ?=)))))
(defun calcAlg-escape ()
(interactive)
(calc-unread-command)
(save-excursion
(calc-select-buffer)
(use-local-map calc-mode-map))
(calcAlg-enter))
(defvar calc-plain-entry nil)
(defun calcAlg-edit ()
(interactive)
(if (or (not calc-plain-entry)
(calc-minibuffer-contains
"\\`\\([^\"]*\"[^\"]*\"\\)*[^\"]*\"[^\"]*\\'"))
(insert "`")
(setq calc-alg-exp (minibuffer-contents))
(and (> (length calc-alg-exp) 0) (setq calc-previous-alg-entry calc-alg-exp))
(exit-minibuffer)))
(defvar calc-buffer)
(defun calcAlg-enter ()
(interactive)
(let* ((str (minibuffer-contents))
(exp (and (> (length str) 0)
(save-excursion
(set-buffer calc-buffer)
(math-read-exprs str)))))
(if (eq (car-safe exp) 'error)
(progn
(goto-char (minibuffer-prompt-end))
(forward-char (nth 1 exp))
(beep)
(calc-temp-minibuffer-message
(concat " [" (or (nth 2 exp) "Error") "]"))
(calc-clear-unread-commands))
(setq calc-alg-exp (if (calc-minibuffer-contains "\\` *\\[ *\\'")
'((incomplete vec))
exp))
(and (> (length str) 0) (setq calc-previous-alg-entry str))
(exit-minibuffer))))
(defun calcAlg-blink-matching-open ()
(let ((rightpt (point))
(leftpt nil)
(rightchar (preceding-char))
leftchar
rightsyntax
leftsyntax)
(save-excursion
(condition-case ()
(setq leftpt (scan-sexps rightpt -1)
leftchar (char-after leftpt))
(error nil)))
(if (and leftpt
(or (and (= rightchar ?\))
(= leftchar ?\[))
(and (= rightchar ?\])
(= leftchar ?\()))
(save-excursion
(goto-char leftpt)
(looking-at ".+\\(\\.\\.\\|\\\\dots\\|\\\\ldots\\)")))
(let ((leftsaved (aref (syntax-table) leftchar))
(rightsaved (aref (syntax-table) rightchar)))
(unwind-protect
(progn
(cond ((= leftchar ?\[)
(aset (syntax-table) leftchar (cons 4 ?\)))
(aset (syntax-table) rightchar (cons 5 ?\[)))
(t
(aset (syntax-table) leftchar (cons 4 ?\]))
(aset (syntax-table) rightchar (cons 5 ?\())))
(blink-matching-open))
(aset (syntax-table) leftchar leftsaved)
(aset (syntax-table) rightchar rightsaved)))
(blink-matching-open))))
(defun calc-alg-digit-entry ()
(calc-alg-entry
(cond ((eq last-command-char ?e)
(if (> calc-number-radix 14) (format "%d.^" calc-number-radix) "1e"))
((eq last-command-char ?#) (format "%d#" calc-number-radix))
((eq last-command-char ?_) "-")
((eq last-command-char ?@) "0@ ")
(t (char-to-string last-command-char)))))
;; The variable calc-digit-value is initially declared in calc.el,
;; but can be set by calcDigit-algebraic and calcDigit-edit.
(defvar calc-digit-value)
(defun calcDigit-algebraic ()
(interactive)
(if (calc-minibuffer-contains ".*[@oh] *[^'m ]+[^'m]*\\'")
(calcDigit-key)
(setq calc-digit-value (minibuffer-contents))
(exit-minibuffer)))
(defun calcDigit-edit ()
(interactive)
(calc-unread-command)
(setq calc-digit-value (minibuffer-contents))
(exit-minibuffer))
;;; Algebraic expression parsing. [Public]
(defvar math-read-replacement-list
'(;; Misc symbols
("±" "+/-") ; plus or minus
("×" "*") ; multiplication sign
("÷" ":") ; division sign
("−" "-") ; subtraction sign
("∕" "/") ; division sign
("∗" "*") ; asterisk multiplication
("∞" "inf") ; infinity symbol
("≤" "<=")
("≥" ">=")
("≦" "<=")
("≧" ">=")
;; fractions
("¼" "(1:4)") ; 1/4
("½" "(1:2)") ; 1/2
("¾" "(3:4)") ; 3/4
("⅓" "(1:3)") ; 1/3
("⅔" "(2:3)") ; 2/3
("⅕" "(1:5)") ; 1/5
("⅖" "(2:5)") ; 2/5
("⅗" "(3:5)") ; 3/5
("⅘" "(4:5)") ; 4/5
("⅙" "(1:6)") ; 1/6
("⅚" "(5:6)") ; 5/6
("⅛" "(1:8)") ; 1/8
("⅜" "(3:8)") ; 3/8
("⅝" "(5:8)") ; 5/8
("⅞" "(7:8)") ; 7/8
("⅟" "1:") ; 1/...
;; superscripts
("⁰" "0") ; 0
("¹" "1") ; 1
("²" "2") ; 2
("³" "3") ; 3
("⁴" "4") ; 4
("⁵" "5") ; 5
("⁶" "6") ; 6
("⁷" "7") ; 7
("⁸" "8") ; 8
("⁹" "9") ; 9
("⁺" "+") ; +
("⁻" "-") ; -
("⁽" "(") ; (
("⁾" ")") ; )
("ⁿ" "n") ; n
("ⁱ" "i") ; i
;; subscripts
("₀" "0") ; 0
("₁" "1") ; 1
("₂" "2") ; 2
("₃" "3") ; 3
("₄" "4") ; 4
("₅" "5") ; 5
("₆" "6") ; 6
("₇" "7") ; 7
("₈" "8") ; 8
("₉" "9") ; 9
("₊" "+") ; +
("₋" "-") ; -
("₍" "(") ; (
("₎" ")")) ; )
"A list whose elements (old new) indicate replacements to make
in Calc algebraic input.")
(defvar math-read-superscripts
"⁰¹²³⁴⁵⁶⁷⁸⁹⁺⁻⁽⁾ⁿⁱ" ; 0123456789+-()ni
"A string consisting of the superscripts allowed by Calc.")
(defvar math-read-subscripts
"₀₁₂₃₄₅₆₇₈₉₊₋₍₎" ; 0123456789+-()
"A string consisting of the subscripts allowed by Calc.")
(defun math-read-preprocess-string (str)
"Replace some substrings of STR by Calc equivalents."
(setq str
(replace-regexp-in-string (concat "[" math-read-superscripts "]+")
"^(\\&)" str))
(setq str
(replace-regexp-in-string (concat "[" math-read-subscripts "]+")
"_(\\&)" str))
(let ((rep-list math-read-replacement-list))
(while rep-list
(setq str
(replace-regexp-in-string (nth 0 (car rep-list))
(nth 1 (car rep-list)) str))
(setq rep-list (cdr rep-list))))
str)
;; The next few variables are local to math-read-exprs (and math-read-expr
;; in calc-ext.el), but are set in functions they call.
(defvar math-exp-pos)
(defvar math-exp-str)
(defvar math-exp-old-pos)
(defvar math-exp-token)
(defvar math-exp-keep-spaces)
(defvar math-expr-data)
(defun math-read-exprs (math-exp-str)
(let ((math-exp-pos 0)
(math-exp-old-pos 0)
(math-exp-keep-spaces nil)
math-exp-token math-expr-data)
(setq math-exp-str (math-read-preprocess-string math-exp-str))
(if calc-language-input-filter
(setq math-exp-str (funcall calc-language-input-filter math-exp-str)))
(while (setq math-exp-token (string-match "\\.\\.\\([^.]\\|.[^.]\\)" math-exp-str))
(setq math-exp-str (concat (substring math-exp-str 0 math-exp-token) "\\dots"
(substring math-exp-str (+ math-exp-token 2)))))
(math-build-parse-table)
(math-read-token)
(let ((val (catch 'syntax (math-read-expr-list))))
(if (stringp val)
(list 'error math-exp-old-pos val)
(if (equal math-exp-token 'end)
val
(list 'error math-exp-old-pos "Syntax error"))))))
(defun math-read-expr-list ()
(let* ((math-exp-keep-spaces nil)
(val (list (math-read-expr-level 0)))
(last val))
(while (equal math-expr-data ",")
(math-read-token)
(let ((rest (list (math-read-expr-level 0))))
(setcdr last rest)
(setq last rest)))
val))
(defvar calc-user-parse-table nil)
(defvar calc-last-main-parse-table nil)
(defvar calc-last-lang-parse-table nil)
(defvar calc-user-tokens nil)
(defvar calc-user-token-chars nil)
(defvar math-toks nil
"Tokens to pass between math-build-parse-table and math-find-user-tokens.")
(defun math-build-parse-table ()
(let ((mtab (cdr (assq nil calc-user-parse-tables)))
(ltab (cdr (assq calc-language calc-user-parse-tables))))
(or (and (eq mtab calc-last-main-parse-table)
(eq ltab calc-last-lang-parse-table))
(let ((p (append mtab ltab))
(math-toks nil))
(setq calc-user-parse-table p)
(setq calc-user-token-chars nil)
(while p
(math-find-user-tokens (car (car p)))
(setq p (cdr p)))
(setq calc-user-tokens (mapconcat 'identity
(sort (mapcar 'car math-toks)
(function (lambda (x y)
(> (length x)
(length y)))))
"\\|")
calc-last-main-parse-table mtab
calc-last-lang-parse-table ltab)))))
(defun math-find-user-tokens (p)
(while p
(cond ((and (stringp (car p))
(or (> (length (car p)) 1) (equal (car p) "$")
(equal (car p) "\""))
(string-match "[^a-zA-Z0-9]" (car p)))
(let ((s (regexp-quote (car p))))
(if (string-match "\\`[a-zA-Z0-9]" s)
(setq s (concat "\\<" s)))
(if (string-match "[a-zA-Z0-9]\\'" s)
(setq s (concat s "\\>")))
(or (assoc s math-toks)
(progn
(setq math-toks (cons (list s) math-toks))
(or (memq (aref (car p) 0) calc-user-token-chars)
(setq calc-user-token-chars
(cons (aref (car p) 0)
calc-user-token-chars)))))))
((consp (car p))
(math-find-user-tokens (nth 1 (car p)))
(or (eq (car (car p)) '\?)
(math-find-user-tokens (nth 2 (car p))))))
(setq p (cdr p))))
(defun math-read-token ()
(if (>= math-exp-pos (length math-exp-str))
(setq math-exp-old-pos math-exp-pos
math-exp-token 'end
math-expr-data "\000")
(let ((ch (aref math-exp-str math-exp-pos)))
(setq math-exp-old-pos math-exp-pos)
(cond ((memq ch '(32 10 9))
(setq math-exp-pos (1+ math-exp-pos))
(if math-exp-keep-spaces
(setq math-exp-token 'space
math-expr-data " ")
(math-read-token)))
((and (memq ch calc-user-token-chars)
(let ((case-fold-search nil))
(eq (string-match calc-user-tokens math-exp-str math-exp-pos)
math-exp-pos)))
(setq math-exp-token 'punc
math-expr-data (math-match-substring math-exp-str 0)
math-exp-pos (match-end 0)))
((or (and (>= ch ?a) (<= ch ?z))
(and (>= ch ?A) (<= ch ?Z)))
(string-match (if (memq calc-language '(c fortran pascal maple))
"[a-zA-Z0-9_#]*"
"[a-zA-Z0-9'#]*")
math-exp-str math-exp-pos)
(setq math-exp-token 'symbol
math-exp-pos (match-end 0)
math-expr-data (math-restore-dashes
(math-match-substring math-exp-str 0)))
(if (eq calc-language 'eqn)
(let ((code (assoc math-expr-data math-eqn-ignore-words)))
(cond ((null code))
((null (cdr code))
(math-read-token))
((consp (nth 1 code))
(math-read-token)
(if (assoc math-expr-data (cdr code))
(setq math-expr-data (format "%s %s"
(car code) math-expr-data))))
((eq (nth 1 code) 'punc)
(setq math-exp-token 'punc
math-expr-data (nth 2 code)))
(t
(math-read-token)
(math-read-token))))))
((or (and (>= ch ?0) (<= ch ?9))
(and (eq ch '?\.)
(eq (string-match "\\.[0-9]" math-exp-str math-exp-pos)
math-exp-pos))
(and (eq ch '?_)
(eq (string-match "_\\.?[0-9]" math-exp-str math-exp-pos)
math-exp-pos)
(or (eq math-exp-pos 0)
(and (memq calc-language '(nil flat big unform
tex latex eqn))
(eq (string-match "[^])}\"a-zA-Z0-9'$]_"
math-exp-str (1- math-exp-pos))
(1- math-exp-pos))))))
(or (and (eq calc-language 'c)
(string-match "0[xX][0-9a-fA-F]+" math-exp-str math-exp-pos))
(string-match "_?\\([0-9]+.?0*@ *\\)?\\([0-9]+.?0*' *\\)?\\(0*\\([2-9]\\|1[0-4]\\)\\(#\\|\\^\\^\\)[0-9a-dA-D.]+[eE][-+_]?[0-9]+\\|0*\\([2-9]\\|[0-2][0-9]\\|3[0-6]\\)\\(#\\|\\^\\^\\)[0-9a-zA-Z:.]+\\|[0-9]+:[0-9:]+\\|[0-9.]+\\([eE][-+_]?[0-9]+\\)?\"?\\)?"
math-exp-str math-exp-pos))
(setq math-exp-token 'number
math-expr-data (math-match-substring math-exp-str 0)
math-exp-pos (match-end 0)))
((eq ch ?\$)
(if (and (eq calc-language 'pascal)
(eq (string-match
"\\(\\$[0-9a-fA-F]+\\)\\($\\|[^0-9a-zA-Z]\\)"
math-exp-str math-exp-pos)
math-exp-pos))
(setq math-exp-token 'number
math-expr-data (math-match-substring math-exp-str 1)
math-exp-pos (match-end 1))
(if (eq (string-match "\\$\\([1-9][0-9]*\\)" math-exp-str math-exp-pos)
math-exp-pos)
(setq math-expr-data (- (string-to-number (math-match-substring
math-exp-str 1))))
(string-match "\\$+" math-exp-str math-exp-pos)
(setq math-expr-data (- (match-end 0) (match-beginning 0))))
(setq math-exp-token 'dollar
math-exp-pos (match-end 0))))
((eq ch ?\#)
(if (eq (string-match "#\\([1-9][0-9]*\\)" math-exp-str math-exp-pos)
math-exp-pos)
(setq math-expr-data (string-to-number
(math-match-substring math-exp-str 1))
math-exp-pos (match-end 0))
(setq math-expr-data 1
math-exp-pos (1+ math-exp-pos)))
(setq math-exp-token 'hash))
((eq (string-match "~=\\|<=\\|>=\\|<>\\|/=\\|\\+/-\\|\\\\dots\\|\\\\ldots\\|\\*\\*\\|<<\\|>>\\|==\\|!=\\|&&&\\||||\\|!!!\\|&&\\|||\\|!!\\|:=\\|::\\|=>"
math-exp-str math-exp-pos)
math-exp-pos)
(setq math-exp-token 'punc
math-expr-data (math-match-substring math-exp-str 0)
math-exp-pos (match-end 0)))
((and (eq ch ?\")
(string-match "\\(\"\\([^\"\\]\\|\\\\.\\)*\\)\\(\"\\|\\'\\)"
math-exp-str math-exp-pos))
(if (eq calc-language 'eqn)
(progn
(setq math-exp-str (copy-sequence math-exp-str))
(aset math-exp-str (match-beginning 1) ?\{)
(if (< (match-end 1) (length math-exp-str))
(aset math-exp-str (match-end 1) ?\}))
(math-read-token))
(setq math-exp-token 'string
math-expr-data (math-match-substring math-exp-str 1)
math-exp-pos (match-end 0))))
((and (= ch ?\\) (eq calc-language 'tex)
(< math-exp-pos (1- (length math-exp-str))))
(or (string-match "\\\\hbox *{\\([a-zA-Z0-9]+\\)}"
math-exp-str math-exp-pos)
(string-match "\\(\\\\\\([a-zA-Z]+\\|[^a-zA-Z]\\)\\)"
math-exp-str math-exp-pos))
(setq math-exp-token 'symbol
math-exp-pos (match-end 0)
math-expr-data (math-restore-dashes
(math-match-substring math-exp-str 1)))
(let ((code (assoc math-expr-data math-latex-ignore-words)))
(cond ((null code))
((null (cdr code))
(math-read-token))
((eq (nth 1 code) 'punc)
(setq math-exp-token 'punc
math-expr-data (nth 2 code)))
((and (eq (nth 1 code) 'mat)
(string-match " *{" math-exp-str math-exp-pos))
(setq math-exp-pos (match-end 0)
math-exp-token 'punc
math-expr-data "[")
(let ((right (string-match "}" math-exp-str math-exp-pos)))
(and right
(setq math-exp-str (copy-sequence math-exp-str))
(aset math-exp-str right ?\])))))))
((and (= ch ?\\) (eq calc-language 'latex)
(< math-exp-pos (1- (length math-exp-str))))
(or (string-match "\\\\hbox *{\\([a-zA-Z0-9]+\\)}"
math-exp-str math-exp-pos)
(string-match "\\\\text *{\\([a-zA-Z0-9]+\\)}"
math-exp-str math-exp-pos)
(string-match "\\(\\\\\\([a-zA-Z]+\\|[^a-zA-Z]\\)\\)"
math-exp-str math-exp-pos))
(setq math-exp-token 'symbol
math-exp-pos (match-end 0)
math-expr-data (math-restore-dashes
(math-match-substring math-exp-str 1)))
(let ((code (assoc math-expr-data math-tex-ignore-words))
envname)
(cond ((null code))
((null (cdr code))
(math-read-token))
((eq (nth 1 code) 'punc)
(setq math-exp-token 'punc
math-expr-data (nth 2 code)))
((and (eq (nth 1 code) 'begenv)
(string-match " *{\\([^}]*\\)}" math-exp-str math-exp-pos))
(setq math-exp-pos (match-end 0)
envname (match-string 1 math-exp-str)
math-exp-token 'punc
math-expr-data "[")
(cond ((or (string= envname "matrix")
(string= envname "bmatrix")
(string= envname "smallmatrix")
(string= envname "pmatrix"))
(if (string-match (concat "\\\\end{" envname "}")
math-exp-str math-exp-pos)
(setq math-exp-str
(replace-match "]" t t math-exp-str))
(error "%s" (concat "No closing \\end{" envname "}"))))))
((and (eq (nth 1 code) 'mat)
(string-match " *{" math-exp-str math-exp-pos))
(setq math-exp-pos (match-end 0)
math-exp-token 'punc
math-expr-data "[")
(let ((right (string-match "}" math-exp-str math-exp-pos)))
(and right
(setq math-exp-str (copy-sequence math-exp-str))
(aset math-exp-str right ?\])))))))
((and (= ch ?\.) (eq calc-language 'fortran)
(eq (string-match "\\.[a-zA-Z][a-zA-Z][a-zA-Z]?\\."
math-exp-str math-exp-pos) math-exp-pos))
(setq math-exp-token 'punc
math-expr-data (upcase (math-match-substring math-exp-str 0))
math-exp-pos (match-end 0)))
((and (eq calc-language 'math)
(eq (string-match "\\[\\[\\|->\\|:>" math-exp-str math-exp-pos)
math-exp-pos))
(setq math-exp-token 'punc
math-expr-data (math-match-substring math-exp-str 0)
math-exp-pos (match-end 0)))
((and (eq calc-language 'eqn)
(eq (string-match "->\\|<-\\|+-\\|\\\\dots\\|~\\|\\^"
math-exp-str math-exp-pos)
math-exp-pos))
(setq math-exp-token 'punc
math-expr-data (math-match-substring math-exp-str 0)
math-exp-pos (match-end 0))
(and (eq (string-match "\\\\dots\\." math-exp-str math-exp-pos)
math-exp-pos)
(setq math-exp-pos (match-end 0)))
(if (memq (aref math-expr-data 0) '(?~ ?^))
(math-read-token)))
((eq (string-match "%%.*$" math-exp-str math-exp-pos) math-exp-pos)
(setq math-exp-pos (match-end 0))
(math-read-token))
(t
(if (and (eq ch ?\{) (memq calc-language '(tex latex eqn)))
(setq ch ?\())
(if (and (eq ch ?\}) (memq calc-language '(tex latex eqn)))
(setq ch ?\)))
(if (and (eq ch ?\&) (memq calc-language '(tex latex)))
(setq ch ?\,))
(setq math-exp-token 'punc
math-expr-data (char-to-string ch)
math-exp-pos (1+ math-exp-pos)))))))
(defconst math-alg-inequalities
'(calcFunc-lt calcFunc-gt calcFunc-leq calcFunc-geq
calcFunc-eq calcFunc-neq))
(defun math-read-expr-level (exp-prec &optional exp-term)
(let* ((x (math-read-factor)) (first t) op op2)
(while (and (or (and calc-user-parse-table
(setq op (calc-check-user-syntax x exp-prec))
(setq x op
op '("2x" ident 999999 -1)))
(and (setq op (assoc math-expr-data math-expr-opers))
(/= (nth 2 op) -1)
(or (and (setq op2 (assoc
math-expr-data
(cdr (memq op math-expr-opers))))
(eq (= (nth 3 op) -1)
(/= (nth 3 op2) -1))
(eq (= (nth 3 op2) -1)
(not (math-factor-after)))
(setq op op2))
t))
(and (or (eq (nth 2 op) -1)
(memq math-exp-token '(symbol number dollar hash))
(equal math-expr-data "(")
(and (equal math-expr-data "[")
(not (eq calc-language 'math))
(not (and math-exp-keep-spaces
(eq (car-safe x) 'vec)))))
(or (not (setq op (assoc math-expr-data math-expr-opers)))
(/= (nth 2 op) -1))
(or (not calc-user-parse-table)
(not (eq math-exp-token 'symbol))
(let ((p calc-user-parse-table))
(while (and p
(or (not (integerp
(car (car (car p)))))
(not (equal
(nth 1 (car (car p)))
math-expr-data))))
(setq p (cdr p)))
(not p)))
(setq op (assoc "2x" math-expr-opers))))
(not (and exp-term (equal math-expr-data exp-term)))
(>= (nth 2 op) exp-prec))
(if (not (equal (car op) "2x"))
(math-read-token))
(and (memq (nth 1 op) '(sdev mod))
(require 'calc-ext))
(setq x (cond ((consp (nth 1 op))
(funcall (car (nth 1 op)) x op))
((eq (nth 3 op) -1)
(if (eq (nth 1 op) 'ident)
x
(if (eq (nth 1 op) 'closing)
(if (eq (nth 2 op) exp-prec)
(progn
(setq exp-prec 1000)
x)
(throw 'syntax "Mismatched delimiters"))
(list (nth 1 op) x))))
((and (not first)
(memq (nth 1 op) math-alg-inequalities)
(memq (car-safe x) math-alg-inequalities))
(require 'calc-ext)
(math-composite-inequalities x op))
(t (list (nth 1 op)
x
(math-read-expr-level (nth 3 op) exp-term))))
first nil))
x))
;; calc-arg-values is defined in calc-ext.el, but is used here.
(defvar calc-arg-values)
(defun calc-check-user-syntax (&optional x prec)
(let ((p calc-user-parse-table)
(matches nil)
match rule)
(while (and p
(or (not (progn
(setq rule (car (car p)))
(if x
(and (integerp (car rule))
(>= (car rule) prec)
(equal math-expr-data
(car (setq rule (cdr rule)))))
(equal math-expr-data (car rule)))))
(let ((save-exp-pos math-exp-pos)
(save-exp-old-pos math-exp-old-pos)
(save-exp-token math-exp-token)
(save-exp-data math-expr-data))
(or (not (listp
(setq matches (calc-match-user-syntax rule))))
(let ((args (progn
(require 'calc-ext)
calc-arg-values))
(conds nil)
temp)
(if x
(setq matches (cons x matches)))
(setq match (cdr (car p)))
(while (and (eq (car-safe match)
'calcFunc-condition)
(= (length match) 3))
(setq conds (append (math-flatten-lands
(nth 2 match))
conds)
match (nth 1 match)))
(while (and conds match)
(require 'calc-ext)
(cond ((eq (car-safe (car conds))
'calcFunc-let)
(setq temp (car conds))
(or (= (length temp) 3)
(and (= (length temp) 2)
(eq (car-safe (nth 1 temp))
'calcFunc-assign)
(= (length (nth 1 temp)) 3)
(setq temp (nth 1 temp)))
(setq match nil))
(setq matches (cons
(math-normalize
(math-multi-subst
(nth 2 temp)
args matches))
matches)
args (cons (nth 1 temp)
args)))
((and (eq (car-safe (car conds))
'calcFunc-matches)
(= (length (car conds)) 3))
(setq temp (calcFunc-vmatches
(math-multi-subst
(nth 1 (car conds))
args matches)
(nth 2 (car conds))))
(if (eq temp 0)
(setq match nil)
(while (setq temp (cdr temp))
(setq matches (cons (nth 2 (car temp))
matches)
args (cons (nth 1 (car temp))
args)))))
(t
(or (math-is-true (math-simplify
(math-multi-subst
(car conds)
args matches)))
(setq match nil))))
(setq conds (cdr conds)))
(if match
(not (setq match (math-multi-subst
match args matches)))
(setq math-exp-old-pos save-exp-old-pos
math-exp-token save-exp-token
math-expr-data save-exp-data
math-exp-pos save-exp-pos)))))))
(setq p (cdr p)))
(and p match)))
(defun calc-match-user-syntax (p &optional term)
(let ((matches nil)
(save-exp-pos math-exp-pos)
(save-exp-old-pos math-exp-old-pos)
(save-exp-token math-exp-token)
(save-exp-data math-expr-data)
m)
(while (and p
(cond ((stringp (car p))
(and (equal math-expr-data (car p))
(progn
(math-read-token)
t)))
((integerp (car p))
(and (setq m (catch 'syntax
(math-read-expr-level
(car p)
(if (cdr p)
(if (consp (nth 1 p))
(car (nth 1 (nth 1 p)))
(nth 1 p))
term))))
(not (stringp m))
(setq matches (nconc matches (list m)))))
((eq (car (car p)) '\?)
(setq m (calc-match-user-syntax (nth 1 (car p))))
(or (nth 2 (car p))
(setq matches
(nconc matches
(list
(cons 'vec (and (listp m) m))))))
(or (listp m) (not (nth 2 (car p)))
(not (eq (aref (car (nth 2 (car p))) 0) ?\$))
(eq math-exp-token 'end)))
(t
(setq m (calc-match-user-syntax (nth 1 (car p))
(car (nth 2 (car p)))))
(if (listp m)
(let ((vec (cons 'vec m))
opos mm)
(while (and (listp
(setq opos math-exp-pos
mm (calc-match-user-syntax
(or (nth 2 (car p))
(nth 1 (car p)))
(car (nth 2 (car p))))))
(> math-exp-pos opos))
(setq vec (nconc vec mm)))
(setq matches (nconc matches (list vec))))
(and (eq (car (car p)) '*)
(setq matches (nconc matches (list '(vec)))))))))
(setq p (cdr p)))
(if p
(setq math-exp-pos save-exp-pos
math-exp-old-pos save-exp-old-pos
math-exp-token save-exp-token
math-expr-data save-exp-data
matches "Failed"))
matches))
(defun math-remove-dashes (x)
(if (string-match "\\`\\(.*\\)-\\(.*\\)\\'" x)
(math-remove-dashes
(concat (math-match-substring x 1) "#" (math-match-substring x 2)))
x))
(defun math-restore-dashes (x)
(if (string-match "\\`\\(.*\\)[#_]\\(.*\\)\\'" x)
(math-restore-dashes
(concat (math-match-substring x 1) "-" (math-match-substring x 2)))
x))
(defun math-read-if (cond op)
(let ((then (math-read-expr-level 0)))
(or (equal math-expr-data ":")
(throw 'syntax "Expected ':'"))
(math-read-token)
(list 'calcFunc-if cond then (math-read-expr-level (nth 3 op)))))
(defun math-factor-after ()
(let ((math-exp-pos math-exp-pos)
math-exp-old-pos math-exp-token math-expr-data)
(math-read-token)
(or (memq math-exp-token '(number symbol dollar hash string))
(and (assoc math-expr-data '(("-") ("+") ("!") ("|") ("/")))
(assoc (concat "u" math-expr-data) math-expr-opers))
(eq (nth 2 (assoc math-expr-data math-expr-opers)) -1)
(assoc math-expr-data '(("(") ("[") ("{"))))))
(defun math-read-factor ()
(let (op)
(cond ((eq math-exp-token 'number)
(let ((num (math-read-number math-expr-data)))
(if (not num)
(progn
(setq math-exp-old-pos math-exp-pos)
(throw 'syntax "Bad format")))
(math-read-token)
(if (and math-read-expr-quotes
(consp num))
(list 'quote num)
num)))
((and calc-user-parse-table
(setq op (calc-check-user-syntax)))
op)
((or (equal math-expr-data "-")
(equal math-expr-data "+")
(equal math-expr-data "!")
(equal math-expr-data "|")
(equal math-expr-data "/"))
(setq math-expr-data (concat "u" math-expr-data))
(math-read-factor))
((and (setq op (assoc math-expr-data math-expr-opers))
(eq (nth 2 op) -1))
(if (consp (nth 1 op))
(funcall (car (nth 1 op)) op)
(math-read-token)
(let ((val (math-read-expr-level (nth 3 op))))
(cond ((eq (nth 1 op) 'ident)
val)
((and (Math-numberp val)
(equal (car op) "u-"))
(math-neg val))
(t (list (nth 1 op) val))))))
((eq math-exp-token 'symbol)
(let ((sym (intern math-expr-data)))
(math-read-token)
(if (equal math-expr-data calc-function-open)
(let ((f (assq sym math-expr-function-mapping)))
(math-read-token)
(if (consp (cdr f))
(funcall (car (cdr f)) f sym)
(let ((args (if (or (equal math-expr-data calc-function-close)
(eq math-exp-token 'end))
nil
(math-read-expr-list))))
(if (not (or (equal math-expr-data calc-function-close)
(eq math-exp-token 'end)))
(throw 'syntax "Expected `)'"))
(math-read-token)
(if (and (eq calc-language 'fortran) args
(require 'calc-ext)
(let ((calc-matrix-mode 'scalar))
(math-known-matrixp
(list 'var sym
(intern
(concat "var-"
(symbol-name sym)))))))
(math-parse-fortran-subscr sym args)
(if f
(setq sym (cdr f))
(and (= (aref (symbol-name sym) 0) ?\\)
(< (prefix-numeric-value calc-language-option)
0)
(setq sym (intern (substring (symbol-name sym)
1))))
(or (string-match "-" (symbol-name sym))
(setq sym (intern
(concat "calcFunc-"
(symbol-name sym))))))
(cons sym args)))))
(if math-read-expr-quotes
sym
(let ((val (list 'var
(intern (math-remove-dashes
(symbol-name sym)))
(if (string-match "-" (symbol-name sym))
sym
(intern (concat "var-"
(symbol-name sym)))))))
(let ((v (assq (nth 1 val) math-expr-variable-mapping)))
(and v (setq val (if (consp (cdr v))
(funcall (car (cdr v)) v val)
(list 'var
(intern
(substring (symbol-name (cdr v))
4))
(cdr v))))))
(while (and (memq calc-language '(c pascal maple))
(equal math-expr-data "["))
(math-read-token)
(setq val (append (list 'calcFunc-subscr val)
(math-read-expr-list)))
(if (equal math-expr-data "]")
(math-read-token)
(throw 'syntax "Expected ']'")))
val)))))
((eq math-exp-token 'dollar)
(let ((abs (if (> math-expr-data 0) math-expr-data (- math-expr-data))))
(if (>= (length calc-dollar-values) abs)
(let ((num math-expr-data))
(math-read-token)
(setq calc-dollar-used (max calc-dollar-used num))
(math-check-complete (nth (1- abs) calc-dollar-values)))
(throw 'syntax (if calc-dollar-values
"Too many $'s"
"$'s not allowed in this context")))))
((eq math-exp-token 'hash)
(or calc-hashes-used
(throw 'syntax "#'s not allowed in this context"))
(require 'calc-ext)
(if (<= math-expr-data (length calc-arg-values))
(let ((num math-expr-data))
(math-read-token)
(setq calc-hashes-used (max calc-hashes-used num))
(nth (1- num) calc-arg-values))
(throw 'syntax "Too many # arguments")))
((equal math-expr-data "(")
(let* ((exp (let ((math-exp-keep-spaces nil))
(math-read-token)
(if (or (equal math-expr-data "\\dots")
(equal math-expr-data "\\ldots"))
'(neg (var inf var-inf))
(math-read-expr-level 0)))))
(let ((math-exp-keep-spaces nil))
(cond
((equal math-expr-data ",")
(progn
(math-read-token)
(let ((exp2 (math-read-expr-level 0)))
(setq exp
(if (and exp2 (Math-realp exp) (Math-realp exp2))
(math-normalize (list 'cplx exp exp2))
(list '+ exp (list '* exp2 '(var i var-i))))))))
((equal math-expr-data ";")
(progn
(math-read-token)
(let ((exp2 (math-read-expr-level 0)))
(setq exp (if (and exp2 (Math-realp exp)
(Math-anglep exp2))
(math-normalize (list 'polar exp exp2))
(require 'calc-ext)
(list '* exp
(list 'calcFunc-exp
(list '*
(math-to-radians-2 exp2)
'(var i var-i)))))))))
((or (equal math-expr-data "\\dots")
(equal math-expr-data "\\ldots"))
(progn
(math-read-token)
(let ((exp2 (if (or (equal math-expr-data ")")
(equal math-expr-data "]")
(eq math-exp-token 'end))
'(var inf var-inf)
(math-read-expr-level 0))))
(setq exp
(list 'intv
(if (equal math-expr-data ")") 0 1)
exp
exp2)))))))
(if (not (or (equal math-expr-data ")")
(and (equal math-expr-data "]") (eq (car-safe exp) 'intv))
(eq math-exp-token 'end)))
(throw 'syntax "Expected `)'"))
(math-read-token)
exp))
((eq math-exp-token 'string)
(require 'calc-ext)
(math-read-string))
((equal math-expr-data "[")
(require 'calc-ext)
(math-read-brackets t "]"))
((equal math-expr-data "{")
(require 'calc-ext)
(math-read-brackets nil "}"))
((equal math-expr-data "<")
(require 'calc-ext)
(math-read-angle-brackets))
(t (throw 'syntax "Expected a number")))))
(provide 'calc-aent)
;;; arch-tag: 5599e45d-e51e-44bb-9a20-9f4ed8c96c32
;;; calc-aent.el ends here
Reference in New Issue View Git Blame Copy Permalink