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before their first use. Use `when', `unless'. Remove trailing periods from error forms. Add description and headers suggested by Emacs Lisp coding conventions.
1136 lines
36 KiB
EmacsLisp
1136 lines
36 KiB
EmacsLisp
;;; calc-aent.el --- algebraic entry functions for Calc
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;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
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;; Author: Dave Gillespie <daveg@synaptics.com>
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;; Maintainer: Colin Walters <walters@debian.org>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY. No author or distributor
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;; accepts responsibility to anyone for the consequences of using it
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;; or for whether it serves any particular purpose or works at all,
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;; unless he says so in writing. Refer to the GNU Emacs General Public
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;; License for full details.
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;; Everyone is granted permission to copy, modify and redistribute
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;; GNU Emacs, but only under the conditions described in the
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;; GNU Emacs General Public License. A copy of this license is
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;; supposed to have been given to you along with GNU Emacs so you
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;; can know your rights and responsibilities. It should be in a
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;; file named COPYING. Among other things, the copyright notice
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;; and this notice must be preserved on all copies.
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;;; Commentary:
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;;; Code:
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;; This file is autoloaded from calc.el.
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(require 'calc)
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(require 'calc-macs)
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(eval-when-compile '(require calc-macs))
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(defun calc-Need-calc-aent () nil)
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(defun calc-do-quick-calc ()
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(calc-check-defines)
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(if (eq major-mode 'calc-mode)
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(calc-algebraic-entry t)
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(let (buf shortbuf)
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(save-excursion
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(calc-create-buffer)
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(let* ((calc-command-flags nil)
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(calc-dollar-values calc-quick-prev-results)
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(calc-dollar-used 0)
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(enable-recursive-minibuffers t)
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(calc-language (if (memq calc-language '(nil big))
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'flat calc-language))
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(entry (calc-do-alg-entry "" "Quick calc: " t))
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(alg-exp (mapcar (function
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(lambda (x)
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(if (and (not calc-extensions-loaded)
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calc-previous-alg-entry
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(string-match
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"\\`[-0-9._+*/^() ]+\\'"
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calc-previous-alg-entry))
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(calc-normalize x)
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(calc-extensions)
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(math-evaluate-expr x))))
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entry)))
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(when (and (= (length alg-exp) 1)
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(eq (car-safe (car alg-exp)) 'calcFunc-assign)
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(= (length (car alg-exp)) 3)
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(eq (car-safe (nth 1 (car alg-exp))) 'var))
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(calc-extensions)
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(set (nth 2 (nth 1 (car alg-exp))) (nth 2 (car alg-exp)))
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(calc-refresh-evaltos (nth 2 (nth 1 (car alg-exp))))
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(setq alg-exp (list (nth 2 (car alg-exp)))))
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(setq calc-quick-prev-results alg-exp
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buf (mapconcat (function (lambda (x)
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(math-format-value x 1000)))
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alg-exp
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" ")
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shortbuf buf)
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(if (and (= (length alg-exp) 1)
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(memq (car-safe (car alg-exp)) '(nil bigpos bigneg))
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(< (length buf) 20)
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(= calc-number-radix 10))
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(setq buf (concat buf " ("
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(let ((calc-number-radix 16))
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(math-format-value (car alg-exp) 1000))
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", "
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(let ((calc-number-radix 8))
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(math-format-value (car alg-exp) 1000))
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(if (and (integerp (car alg-exp))
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(> (car alg-exp) 0)
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(< (car alg-exp) 127))
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(format ", \"%c\"" (car alg-exp))
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"")
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")")))
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(if (and (< (length buf) (frame-width)) (= (length entry) 1)
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calc-extensions-loaded)
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(let ((long (concat (math-format-value (car entry) 1000)
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" => " buf)))
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(if (<= (length long) (- (frame-width) 8))
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(setq buf long))))
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(calc-handle-whys)
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(message "Result: %s" buf)))
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(if (eq last-command-char 10)
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(insert shortbuf)
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(setq kill-ring (cons shortbuf kill-ring))
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(when (> (length kill-ring) kill-ring-max)
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(setcdr (nthcdr (1- kill-ring-max) kill-ring) nil))
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(setq kill-ring-yank-pointer kill-ring)))))
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(defun calc-do-calc-eval (str separator args)
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(calc-check-defines)
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(catch 'calc-error
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(save-excursion
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(calc-create-buffer)
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(cond
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((and (consp str) (not (symbolp (car str))))
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(let ((calc-language nil)
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(math-expr-opers math-standard-opers)
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(calc-internal-prec 12)
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(calc-word-size 32)
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(calc-symbolic-mode nil)
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(calc-matrix-mode nil)
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(calc-angle-mode 'deg)
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(calc-number-radix 10)
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(calc-leading-zeros nil)
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(calc-group-digits nil)
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(calc-point-char ".")
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(calc-frac-format '(":" nil))
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(calc-prefer-frac nil)
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(calc-hms-format "%s@ %s' %s\"")
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(calc-date-format '((H ":" mm C SS pp " ")
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Www " " Mmm " " D ", " YYYY))
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(calc-float-format '(float 0))
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(calc-full-float-format '(float 0))
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(calc-complex-format nil)
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(calc-matrix-just nil)
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(calc-full-vectors t)
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(calc-break-vectors nil)
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(calc-vector-commas ",")
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(calc-vector-brackets "[]")
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(calc-matrix-brackets '(R O))
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(calc-complex-mode 'cplx)
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(calc-infinite-mode nil)
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(calc-display-strings nil)
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(calc-simplify-mode nil)
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(calc-display-working-message 'lots)
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(strp (cdr str)))
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(while strp
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(set (car strp) (nth 1 strp))
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(setq strp (cdr (cdr strp))))
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(calc-do-calc-eval (car str) separator args)))
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((eq separator 'eval)
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(eval str))
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((eq separator 'macro)
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(calc-extensions)
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(let* ((calc-buffer (current-buffer))
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(calc-window (get-buffer-window calc-buffer))
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(save-window (selected-window)))
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(if calc-window
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(unwind-protect
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(progn
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(select-window calc-window)
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(calc-execute-kbd-macro str nil (car args)))
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(and (window-point save-window)
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(select-window save-window)))
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(save-window-excursion
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(select-window (get-largest-window))
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(switch-to-buffer calc-buffer)
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(calc-execute-kbd-macro str nil (car args)))))
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nil)
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((eq separator 'pop)
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(or (not (integerp str))
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(= str 0)
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(calc-pop (min str (calc-stack-size))))
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(calc-stack-size))
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((eq separator 'top)
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(and (integerp str)
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(> str 0)
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(<= str (calc-stack-size))
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(math-format-value (calc-top-n str (car args)) 1000)))
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((eq separator 'rawtop)
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(and (integerp str)
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(> str 0)
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(<= str (calc-stack-size))
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(calc-top-n str (car args))))
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(t
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(let* ((calc-command-flags nil)
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(calc-next-why nil)
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(calc-language (if (memq calc-language '(nil big))
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'flat calc-language))
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(calc-dollar-values (mapcar
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(function
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(lambda (x)
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(if (stringp x)
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(progn
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(setq x (math-read-exprs x))
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(if (eq (car-safe x)
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'error)
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(throw 'calc-error
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(calc-eval-error
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(cdr x)))
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(car x)))
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x)))
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args))
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(calc-dollar-used 0)
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(res (if (stringp str)
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(math-read-exprs str)
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(list str)))
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buf)
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(if (eq (car res) 'error)
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(calc-eval-error (cdr res))
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(setq res (mapcar 'calc-normalize res))
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(and (memq 'clear-message calc-command-flags)
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(message ""))
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(cond ((eq separator 'pred)
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(calc-extensions)
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(if (= (length res) 1)
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(math-is-true (car res))
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(calc-eval-error '(0 "Single value expected"))))
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((eq separator 'raw)
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(if (= (length res) 1)
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(car res)
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(calc-eval-error '(0 "Single value expected"))))
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((eq separator 'list)
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res)
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((memq separator '(num rawnum))
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(if (= (length res) 1)
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(if (math-constp (car res))
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(if (eq separator 'num)
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(math-format-value (car res) 1000)
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(car res))
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(calc-eval-error
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(list 0
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(if calc-next-why
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(calc-explain-why (car calc-next-why))
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"Number expected"))))
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(calc-eval-error '(0 "Single value expected"))))
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((eq separator 'push)
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(calc-push-list res)
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nil)
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(t (while res
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(setq buf (concat buf
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(and buf (or separator ", "))
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(math-format-value (car res) 1000))
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res (cdr res)))
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buf)))))))))
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(defun calc-eval-error (msg)
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(if (and (boundp 'calc-eval-error)
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calc-eval-error)
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(if (eq calc-eval-error 'string)
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(nth 1 msg)
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(error "%s" (nth 1 msg)))
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msg))
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;;;; Reading an expression in algebraic form.
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(defun calc-auto-algebraic-entry (&optional prefix)
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(interactive "P")
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(calc-algebraic-entry prefix t))
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(defun calc-algebraic-entry (&optional prefix auto)
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(interactive "P")
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(calc-wrapper
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(let ((calc-language (if prefix nil calc-language))
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(math-expr-opers (if prefix math-standard-opers math-expr-opers)))
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(calc-alg-entry (and auto (char-to-string last-command-char))))))
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(defun calc-alg-entry (&optional initial prompt)
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(let* ((sel-mode nil)
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(calc-dollar-values (mapcar 'calc-get-stack-element
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(nthcdr calc-stack-top calc-stack)))
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(calc-dollar-used 0)
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(calc-plain-entry t)
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(alg-exp (calc-do-alg-entry initial prompt t)))
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(if (stringp alg-exp)
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(progn
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(calc-extensions)
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(calc-alg-edit alg-exp))
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(let* ((calc-simplify-mode (if (eq last-command-char ?\C-j)
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'none
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calc-simplify-mode))
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(nvals (mapcar 'calc-normalize alg-exp)))
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(while alg-exp
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(calc-record (if calc-extensions-loaded (car alg-exp) (car nvals))
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"alg'")
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(calc-pop-push-record-list calc-dollar-used
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(and (not (equal (car alg-exp)
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(car nvals)))
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calc-extensions-loaded
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"")
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(list (car nvals)))
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(setq alg-exp (cdr alg-exp)
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nvals (cdr nvals)
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calc-dollar-used 0)))
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(calc-handle-whys))))
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(defun calc-do-alg-entry (&optional initial prompt no-normalize)
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(let* ((calc-buffer (current-buffer))
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(blink-paren-function 'calcAlg-blink-matching-open)
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(alg-exp 'error))
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(unless (boundp 'calc-alg-ent-map)
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(setq calc-alg-ent-map (copy-keymap minibuffer-local-map))
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(define-key calc-alg-ent-map "'" 'calcAlg-previous)
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(define-key calc-alg-ent-map "`" 'calcAlg-edit)
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(define-key calc-alg-ent-map "\C-m" 'calcAlg-enter)
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(define-key calc-alg-ent-map "\C-j" 'calcAlg-enter)
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(or calc-emacs-type-19
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(let ((i 33))
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(setq calc-alg-ent-esc-map (copy-sequence esc-map))
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(while (< i 127)
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(aset calc-alg-ent-esc-map i 'calcAlg-escape)
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(setq i (1+ i))))))
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(unless calc-emacs-type-19
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(define-key calc-alg-ent-map "\e" nil))
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(if (eq calc-algebraic-mode 'total)
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(define-key calc-alg-ent-map "\e" calc-alg-ent-esc-map)
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(define-key calc-alg-ent-map "\ep" 'calcAlg-plus-minus)
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(define-key calc-alg-ent-map "\em" 'calcAlg-mod)
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(define-key calc-alg-ent-map "\e=" 'calcAlg-equals)
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(define-key calc-alg-ent-map "\e\r" 'calcAlg-equals)
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(define-key calc-alg-ent-map "\e%" 'self-insert-command))
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(setq calc-aborted-prefix nil)
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(let ((buf (read-from-minibuffer (or prompt "Algebraic: ")
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(or initial "")
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calc-alg-ent-map nil)))
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(when (eq alg-exp 'error)
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(when (eq (car-safe (setq alg-exp (math-read-exprs buf))) 'error)
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(setq alg-exp nil)))
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(setq calc-aborted-prefix "alg'")
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(or no-normalize
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(and alg-exp (setq alg-exp (mapcar 'calc-normalize alg-exp))))
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alg-exp)))
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(defun calcAlg-plus-minus ()
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(interactive)
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(if (calc-minibuffer-contains ".* \\'")
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(insert "+/- ")
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(insert " +/- ")))
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(defun calcAlg-mod ()
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(interactive)
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(if (not (calc-minibuffer-contains ".* \\'"))
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(insert " "))
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(if (calc-minibuffer-contains ".* mod +\\'")
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(if calc-previous-modulo
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(insert (math-format-flat-expr calc-previous-modulo 0))
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(beep))
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(insert "mod ")))
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(defun calcAlg-previous ()
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(interactive)
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(if (calc-minibuffer-contains "\\`\\'")
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(if calc-previous-alg-entry
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(insert calc-previous-alg-entry)
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(beep))
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(insert "'")))
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(defun calcAlg-equals ()
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(interactive)
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(unwind-protect
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(calcAlg-enter)
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(if (consp alg-exp)
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(progn (setq prefix-arg (length alg-exp))
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(calc-unread-command ?=)))))
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(defun calcAlg-escape ()
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(interactive)
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(calc-unread-command)
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(save-excursion
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(calc-select-buffer)
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(use-local-map calc-mode-map))
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(calcAlg-enter))
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(defvar calc-plain-entry nil)
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(defun calcAlg-edit ()
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(interactive)
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(if (or (not calc-plain-entry)
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(calc-minibuffer-contains
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"\\`\\([^\"]*\"[^\"]*\"\\)*[^\"]*\"[^\"]*\\'"))
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(insert "`")
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(setq alg-exp (minibuffer-contents))
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(and (> (length alg-exp) 0) (setq calc-previous-alg-entry alg-exp))
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(exit-minibuffer)))
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(defun calcAlg-enter ()
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(interactive)
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(let* ((str (minibuffer-contents))
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(exp (and (> (length str) 0)
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(save-excursion
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(set-buffer calc-buffer)
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(math-read-exprs str)))))
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(if (eq (car-safe exp) 'error)
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(progn
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(goto-char (minibuffer-prompt-end))
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(forward-char (nth 1 exp))
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(beep)
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(calc-temp-minibuffer-message
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(concat " [" (or (nth 2 exp) "Error") "]"))
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(calc-clear-unread-commands))
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(setq alg-exp (if (calc-minibuffer-contains "\\` *\\[ *\\'")
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'((incomplete vec))
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exp))
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(and (> (length str) 0) (setq calc-previous-alg-entry str))
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(exit-minibuffer))))
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(defun calcAlg-blink-matching-open ()
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(let ((oldpos (point))
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(blinkpos nil))
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(save-excursion
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(condition-case ()
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(setq blinkpos (scan-sexps oldpos -1))
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(error nil)))
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(if (and blinkpos
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(> oldpos (1+ (point-min)))
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(or (and (= (char-after (1- oldpos)) ?\))
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(= (char-after blinkpos) ?\[))
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(and (= (char-after (1- oldpos)) ?\])
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(= (char-after blinkpos) ?\()))
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(save-excursion
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(goto-char blinkpos)
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(looking-at ".+\\(\\.\\.\\|\\\\dots\\|\\\\ldots\\)")))
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(let ((saved (aref (syntax-table) (char-after blinkpos))))
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(unwind-protect
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(progn
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(aset (syntax-table) (char-after blinkpos)
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(+ (logand saved 255)
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(lsh (char-after (1- oldpos)) 8)))
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(blink-matching-open))
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(aset (syntax-table) (char-after blinkpos) saved)))
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(blink-matching-open))))
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(defun calc-alg-digit-entry ()
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(calc-alg-entry
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(cond ((eq last-command-char ?e)
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(if (> calc-number-radix 14) (format "%d.^" calc-number-radix) "1e"))
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((eq last-command-char ?#) (format "%d#" calc-number-radix))
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((eq last-command-char ?_) "-")
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((eq last-command-char ?@) "0@ ")
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(t (char-to-string last-command-char)))))
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(defun calcDigit-algebraic ()
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(interactive)
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(if (calc-minibuffer-contains ".*[@oh] *[^'m ]+[^'m]*\\'")
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(calcDigit-key)
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(setq calc-digit-value (minibuffer-contents))
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(exit-minibuffer)))
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(defun calcDigit-edit ()
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(interactive)
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(calc-unread-command)
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(setq calc-digit-value (minibuffer-contents))
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(exit-minibuffer))
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;;; Algebraic expression parsing. [Public]
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(defun math-read-exprs (exp-str)
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(let ((exp-pos 0)
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(exp-old-pos 0)
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(exp-keep-spaces nil)
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exp-token exp-data)
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(if calc-language-input-filter
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|
(setq exp-str (funcall calc-language-input-filter exp-str)))
|
|
(while (setq exp-token (string-match "\\.\\.\\([^.]\\|.[^.]\\)" exp-str))
|
|
(setq exp-str (concat (substring exp-str 0 exp-token) "\\dots"
|
|
(substring exp-str (+ exp-token 2)))))
|
|
(math-build-parse-table)
|
|
(math-read-token)
|
|
(let ((val (catch 'syntax (math-read-expr-list))))
|
|
(if (stringp val)
|
|
(list 'error exp-old-pos val)
|
|
(if (equal exp-token 'end)
|
|
val
|
|
(list 'error exp-old-pos "Syntax error"))))))
|
|
|
|
(defun math-read-expr-list ()
|
|
(let* ((exp-keep-spaces nil)
|
|
(val (list (math-read-expr-level 0)))
|
|
(last val))
|
|
(while (equal exp-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)
|
|
|
|
(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))
|
|
(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 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) ; uses "toks"
|
|
(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 toks)
|
|
(progn
|
|
(setq toks (cons (list s) 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 (>= exp-pos (length exp-str))
|
|
(setq exp-old-pos exp-pos
|
|
exp-token 'end
|
|
exp-data "\000")
|
|
(let ((ch (aref exp-str exp-pos)))
|
|
(setq exp-old-pos exp-pos)
|
|
(cond ((memq ch '(32 10 9))
|
|
(setq exp-pos (1+ exp-pos))
|
|
(if exp-keep-spaces
|
|
(setq exp-token 'space
|
|
exp-data " ")
|
|
(math-read-token)))
|
|
((and (memq ch calc-user-token-chars)
|
|
(let ((case-fold-search nil))
|
|
(eq (string-match calc-user-tokens exp-str exp-pos)
|
|
exp-pos)))
|
|
(setq exp-token 'punc
|
|
exp-data (math-match-substring exp-str 0)
|
|
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'#]*")
|
|
exp-str exp-pos)
|
|
(setq exp-token 'symbol
|
|
exp-pos (match-end 0)
|
|
exp-data (math-restore-dashes
|
|
(math-match-substring exp-str 0)))
|
|
(if (eq calc-language 'eqn)
|
|
(let ((code (assoc exp-data math-eqn-ignore-words)))
|
|
(cond ((null code))
|
|
((null (cdr code))
|
|
(math-read-token))
|
|
((consp (nth 1 code))
|
|
(math-read-token)
|
|
(if (assoc exp-data (cdr code))
|
|
(setq exp-data (format "%s %s"
|
|
(car code) exp-data))))
|
|
((eq (nth 1 code) 'punc)
|
|
(setq exp-token 'punc
|
|
exp-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]" exp-str exp-pos) exp-pos))
|
|
(and (eq ch '?_)
|
|
(eq (string-match "_\\.?[0-9]" exp-str exp-pos) exp-pos)
|
|
(or (eq exp-pos 0)
|
|
(and (memq calc-language '(nil flat big unform
|
|
tex eqn))
|
|
(eq (string-match "[^])}\"a-zA-Z0-9'$]_"
|
|
exp-str (1- exp-pos))
|
|
(1- exp-pos))))))
|
|
(or (and (eq calc-language 'c)
|
|
(string-match "0[xX][0-9a-fA-F]+" exp-str 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]+\\)?\"?\\)?" exp-str exp-pos))
|
|
(setq exp-token 'number
|
|
exp-data (math-match-substring exp-str 0)
|
|
exp-pos (match-end 0)))
|
|
((eq ch ?\$)
|
|
(if (and (eq calc-language 'pascal)
|
|
(eq (string-match
|
|
"\\(\\$[0-9a-fA-F]+\\)\\($\\|[^0-9a-zA-Z]\\)"
|
|
exp-str exp-pos)
|
|
exp-pos))
|
|
(setq exp-token 'number
|
|
exp-data (math-match-substring exp-str 1)
|
|
exp-pos (match-end 1))
|
|
(if (eq (string-match "\\$\\([1-9][0-9]*\\)" exp-str exp-pos)
|
|
exp-pos)
|
|
(setq exp-data (- (string-to-int (math-match-substring
|
|
exp-str 1))))
|
|
(string-match "\\$+" exp-str exp-pos)
|
|
(setq exp-data (- (match-end 0) (match-beginning 0))))
|
|
(setq exp-token 'dollar
|
|
exp-pos (match-end 0))))
|
|
((eq ch ?\#)
|
|
(if (eq (string-match "#\\([1-9][0-9]*\\)" exp-str exp-pos)
|
|
exp-pos)
|
|
(setq exp-data (string-to-int
|
|
(math-match-substring exp-str 1))
|
|
exp-pos (match-end 0))
|
|
(setq exp-data 1
|
|
exp-pos (1+ exp-pos)))
|
|
(setq exp-token 'hash))
|
|
((eq (string-match "~=\\|<=\\|>=\\|<>\\|/=\\|\\+/-\\|\\\\dots\\|\\\\ldots\\|\\*\\*\\|<<\\|>>\\|==\\|!=\\|&&&\\||||\\|!!!\\|&&\\|||\\|!!\\|:=\\|::\\|=>"
|
|
exp-str exp-pos)
|
|
exp-pos)
|
|
(setq exp-token 'punc
|
|
exp-data (math-match-substring exp-str 0)
|
|
exp-pos (match-end 0)))
|
|
((and (eq ch ?\")
|
|
(string-match "\\(\"\\([^\"\\]\\|\\\\.\\)*\\)\\(\"\\|\\'\\)" exp-str exp-pos))
|
|
(if (eq calc-language 'eqn)
|
|
(progn
|
|
(setq exp-str (copy-sequence exp-str))
|
|
(aset exp-str (match-beginning 1) ?\{)
|
|
(if (< (match-end 1) (length exp-str))
|
|
(aset exp-str (match-end 1) ?\}))
|
|
(math-read-token))
|
|
(setq exp-token 'string
|
|
exp-data (math-match-substring exp-str 1)
|
|
exp-pos (match-end 0))))
|
|
((and (= ch ?\\) (eq calc-language 'tex)
|
|
(< exp-pos (1- (length exp-str))))
|
|
(or (string-match "\\\\hbox *{\\([a-zA-Z0-9]+\\)}" exp-str exp-pos)
|
|
(string-match "\\(\\\\\\([a-zA-Z]+\\|[^a-zA-Z]\\)\\)" exp-str exp-pos))
|
|
(setq exp-token 'symbol
|
|
exp-pos (match-end 0)
|
|
exp-data (math-restore-dashes
|
|
(math-match-substring exp-str 1)))
|
|
(let ((code (assoc exp-data math-tex-ignore-words)))
|
|
(cond ((null code))
|
|
((null (cdr code))
|
|
(math-read-token))
|
|
((eq (nth 1 code) 'punc)
|
|
(setq exp-token 'punc
|
|
exp-data (nth 2 code)))
|
|
((and (eq (nth 1 code) 'mat)
|
|
(string-match " *{" exp-str exp-pos))
|
|
(setq exp-pos (match-end 0)
|
|
exp-token 'punc
|
|
exp-data "[")
|
|
(let ((right (string-match "}" exp-str exp-pos)))
|
|
(and right
|
|
(setq exp-str (copy-sequence exp-str))
|
|
(aset exp-str right ?\])))))))
|
|
((and (= ch ?\.) (eq calc-language 'fortran)
|
|
(eq (string-match "\\.[a-zA-Z][a-zA-Z][a-zA-Z]?\\."
|
|
exp-str exp-pos) exp-pos))
|
|
(setq exp-token 'punc
|
|
exp-data (upcase (math-match-substring exp-str 0))
|
|
exp-pos (match-end 0)))
|
|
((and (eq calc-language 'math)
|
|
(eq (string-match "\\[\\[\\|->\\|:>" exp-str exp-pos)
|
|
exp-pos))
|
|
(setq exp-token 'punc
|
|
exp-data (math-match-substring exp-str 0)
|
|
exp-pos (match-end 0)))
|
|
((and (eq calc-language 'eqn)
|
|
(eq (string-match "->\\|<-\\|+-\\|\\\\dots\\|~\\|\\^"
|
|
exp-str exp-pos)
|
|
exp-pos))
|
|
(setq exp-token 'punc
|
|
exp-data (math-match-substring exp-str 0)
|
|
exp-pos (match-end 0))
|
|
(and (eq (string-match "\\\\dots\\." exp-str exp-pos) exp-pos)
|
|
(setq exp-pos (match-end 0)))
|
|
(if (memq (aref exp-data 0) '(?~ ?^))
|
|
(math-read-token)))
|
|
((eq (string-match "%%.*$" exp-str exp-pos) exp-pos)
|
|
(setq exp-pos (match-end 0))
|
|
(math-read-token))
|
|
(t
|
|
(if (and (eq ch ?\{) (memq calc-language '(tex eqn)))
|
|
(setq ch ?\())
|
|
(if (and (eq ch ?\}) (memq calc-language '(tex eqn)))
|
|
(setq ch ?\)))
|
|
(if (and (eq ch ?\&) (eq calc-language 'tex))
|
|
(setq ch ?\,))
|
|
(setq exp-token 'punc
|
|
exp-data (char-to-string ch)
|
|
exp-pos (1+ exp-pos)))))))
|
|
|
|
|
|
(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 exp-data math-expr-opers))
|
|
(/= (nth 2 op) -1)
|
|
(or (and (setq op2 (assoc
|
|
exp-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 exp-token '(symbol number dollar hash))
|
|
(equal exp-data "(")
|
|
(and (equal exp-data "[")
|
|
(not (eq calc-language 'math))
|
|
(not (and exp-keep-spaces
|
|
(eq (car-safe x) 'vec)))))
|
|
(or (not (setq op (assoc exp-data math-expr-opers)))
|
|
(/= (nth 2 op) -1))
|
|
(or (not calc-user-parse-table)
|
|
(not (eq 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)))
|
|
exp-data))))
|
|
(setq p (cdr p)))
|
|
(not p)))
|
|
(setq op (assoc "2x" math-expr-opers))))
|
|
(not (and exp-term (equal exp-data exp-term)))
|
|
(>= (nth 2 op) exp-prec))
|
|
(if (not (equal (car op) "2x"))
|
|
(math-read-token))
|
|
(and (memq (nth 1 op) '(sdev mod))
|
|
(calc-extensions))
|
|
(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))
|
|
(calc-extensions)
|
|
(math-composite-inequalities x op))
|
|
(t (list (nth 1 op)
|
|
x
|
|
(math-read-expr-level (nth 3 op) exp-term))))
|
|
first nil))
|
|
x))
|
|
|
|
(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 exp-data
|
|
(car (setq rule (cdr rule)))))
|
|
(equal exp-data (car rule)))))
|
|
(let ((save-exp-pos exp-pos)
|
|
(save-exp-old-pos exp-old-pos)
|
|
(save-exp-token exp-token)
|
|
(save-exp-data exp-data))
|
|
(or (not (listp
|
|
(setq matches (calc-match-user-syntax rule))))
|
|
(let ((args (progn
|
|
(calc-extensions)
|
|
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)
|
|
(calc-extensions)
|
|
(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 exp-old-pos save-exp-old-pos
|
|
exp-token save-exp-token
|
|
exp-data save-exp-data
|
|
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 exp-pos)
|
|
(save-exp-old-pos exp-old-pos)
|
|
(save-exp-token exp-token)
|
|
(save-exp-data exp-data))
|
|
(while (and p
|
|
(cond ((stringp (car p))
|
|
(and (equal exp-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 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 exp-pos
|
|
mm (calc-match-user-syntax
|
|
(or (nth 2 (car p))
|
|
(nth 1 (car p)))
|
|
(car (nth 2 (car p))))))
|
|
(> 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 exp-pos save-exp-pos
|
|
exp-old-pos save-exp-old-pos
|
|
exp-token save-exp-token
|
|
exp-data save-exp-data
|
|
matches "Failed"))
|
|
matches))
|
|
|
|
(defconst math-alg-inequalities
|
|
'(calcFunc-lt calcFunc-gt calcFunc-leq calcFunc-geq
|
|
calcFunc-eq calcFunc-neq))
|
|
|
|
(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 exp-data ":")
|
|
(throw 'syntax "Expected ':'"))
|
|
(math-read-token)
|
|
(list 'calcFunc-if cond then (math-read-expr-level (nth 3 op)))))
|
|
|
|
(defun math-factor-after ()
|
|
(let ((exp-pos exp-pos)
|
|
exp-old-pos exp-token exp-data)
|
|
(math-read-token)
|
|
(or (memq exp-token '(number symbol dollar hash string))
|
|
(and (assoc exp-data '(("-") ("+") ("!") ("|") ("/")))
|
|
(assoc (concat "u" exp-data) math-expr-opers))
|
|
(eq (nth 2 (assoc exp-data math-expr-opers)) -1)
|
|
(assoc exp-data '(("(") ("[") ("{"))))))
|
|
|
|
(defun math-read-factor ()
|
|
(let (op)
|
|
(cond ((eq exp-token 'number)
|
|
(let ((num (math-read-number exp-data)))
|
|
(if (not num)
|
|
(progn
|
|
(setq exp-old-pos 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 exp-data "-")
|
|
(equal exp-data "+")
|
|
(equal exp-data "!")
|
|
(equal exp-data "|")
|
|
(equal exp-data "/"))
|
|
(setq exp-data (concat "u" exp-data))
|
|
(math-read-factor))
|
|
((and (setq op (assoc exp-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 exp-token 'symbol)
|
|
(let ((sym (intern exp-data)))
|
|
(math-read-token)
|
|
(if (equal exp-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 exp-data calc-function-close)
|
|
(eq exp-token 'end))
|
|
nil
|
|
(math-read-expr-list))))
|
|
(if (not (or (equal exp-data calc-function-close)
|
|
(eq exp-token 'end)))
|
|
(throw 'syntax "Expected `)'"))
|
|
(math-read-token)
|
|
(if (and (eq calc-language 'fortran) args
|
|
(calc-extensions)
|
|
(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 exp-data "["))
|
|
(math-read-token)
|
|
(setq val (append (list 'calcFunc-subscr val)
|
|
(math-read-expr-list)))
|
|
(if (equal exp-data "]")
|
|
(math-read-token)
|
|
(throw 'syntax "Expected ']'")))
|
|
val)))))
|
|
((eq exp-token 'dollar)
|
|
(let ((abs (if (> exp-data 0) exp-data (- exp-data))))
|
|
(if (>= (length calc-dollar-values) abs)
|
|
(let ((num exp-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 exp-token 'hash)
|
|
(or calc-hashes-used
|
|
(throw 'syntax "#'s not allowed in this context"))
|
|
(calc-extensions)
|
|
(if (<= exp-data (length calc-arg-values))
|
|
(let ((num exp-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 exp-data "(")
|
|
(let* ((exp (let ((exp-keep-spaces nil))
|
|
(math-read-token)
|
|
(if (or (equal exp-data "\\dots")
|
|
(equal exp-data "\\ldots"))
|
|
'(neg (var inf var-inf))
|
|
(math-read-expr-level 0)))))
|
|
(let ((exp-keep-spaces nil))
|
|
(cond
|
|
((equal exp-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 exp-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))
|
|
(calc-extensions)
|
|
(list '* exp
|
|
(list 'calcFunc-exp
|
|
(list '*
|
|
(math-to-radians-2 exp2)
|
|
'(var i var-i)))))))))
|
|
((or (equal exp-data "\\dots")
|
|
(equal exp-data "\\ldots"))
|
|
(progn
|
|
(math-read-token)
|
|
(let ((exp2 (if (or (equal exp-data ")")
|
|
(equal exp-data "]")
|
|
(eq exp-token 'end))
|
|
'(var inf var-inf)
|
|
(math-read-expr-level 0))))
|
|
(setq exp
|
|
(list 'intv
|
|
(if (equal exp-data ")") 0 1)
|
|
exp
|
|
exp2)))))))
|
|
(if (not (or (equal exp-data ")")
|
|
(and (equal exp-data "]") (eq (car-safe exp) 'intv))
|
|
(eq exp-token 'end)))
|
|
(throw 'syntax "Expected `)'"))
|
|
(math-read-token)
|
|
exp))
|
|
((eq exp-token 'string)
|
|
(calc-extensions)
|
|
(math-read-string))
|
|
((equal exp-data "[")
|
|
(calc-extensions)
|
|
(math-read-brackets t "]"))
|
|
((equal exp-data "{")
|
|
(calc-extensions)
|
|
(math-read-brackets nil "}"))
|
|
((equal exp-data "<")
|
|
(calc-extensions)
|
|
(math-read-angle-brackets))
|
|
(t (throw 'syntax "Expected a number")))))
|
|
|
|
;;; calc-aent.el ends here
|