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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.
229 lines
7.1 KiB
EmacsLisp
229 lines
7.1 KiB
EmacsLisp
;;; calc-incom.el --- complex data type input functions for Calc
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;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
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;; Author: David 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-ext.el.
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(require 'calc-ext)
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(require 'calc-macs)
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(defun calc-Need-calc-incom () nil)
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;;; Incomplete forms.
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(defun calc-begin-complex ()
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(interactive)
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(calc-wrapper
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(if (or calc-algebraic-mode calc-incomplete-algebraic-mode)
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(calc-alg-entry "(")
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(calc-push (list 'incomplete calc-complex-mode)))))
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(defun calc-end-complex ()
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(interactive)
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(calc-comma t)
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(calc-wrapper
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(let ((top (calc-top 1)))
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(if (and (eq (car-safe top) 'incomplete)
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(eq (nth 1 top) 'intv))
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(progn
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(if (< (length top) 4)
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(setq top (append top '((neg (var inf var-inf))))))
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(if (< (length top) 5)
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(setq top (append top '((var inf var-inf)))))
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(calc-enter-result 1 "..)" (cdr top)))
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(if (not (and (eq (car-safe top) 'incomplete)
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(memq (nth 1 top) '(cplx polar))))
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(error "Not entering a complex number"))
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(while (< (length top) 4)
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(setq top (append top '(0))))
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(if (not (and (math-realp (nth 2 top))
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(math-anglep (nth 3 top))))
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(error "Components must be real"))
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(calc-enter-result 1 "()" (cdr top))))))
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(defun calc-begin-vector ()
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(interactive)
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(calc-wrapper
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(if (or calc-algebraic-mode calc-incomplete-algebraic-mode)
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(calc-alg-entry "[")
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(calc-push '(incomplete vec)))))
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(defun calc-end-vector ()
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(interactive)
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(calc-comma t)
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(calc-wrapper
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(let ((top (calc-top 1)))
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(if (and (eq (car-safe top) 'incomplete)
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(eq (nth 1 top) 'intv))
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(progn
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(if (< (length top) 4)
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(setq top (append top '((neg (var inf var-inf))))))
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(if (< (length top) 5)
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(setq top (append top '((var inf var-inf)))))
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(setcar (cdr (cdr top)) (1+ (nth 2 top)))
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(calc-enter-result 1 "..]" (cdr top)))
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(if (not (and (eq (car-safe top) 'incomplete)
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(eq (nth 1 top) 'vec)))
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(error "Not entering a vector"))
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(calc-pop-push-record 1 "[]" (cdr top))))))
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(defun calc-comma (&optional allow-polar)
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(interactive)
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(calc-wrapper
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(let ((num (calc-find-first-incomplete
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(nthcdr calc-stack-top calc-stack) 1)))
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(if (= num 0)
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(error "Not entering a vector or complex number"))
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(let* ((inc (calc-top num))
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(stuff (calc-top-list (1- num)))
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(new (append inc stuff)))
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(if (and (null stuff)
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(not allow-polar)
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(or (eq (nth 1 inc) 'vec)
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(< (length new) 4)))
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(setq new (append new
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(if (= (length new) 2)
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'(0)
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(nthcdr (1- (length new)) new)))))
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(or allow-polar
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(if (eq (nth 1 new) 'polar)
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(setq new (append '(incomplete cplx) (cdr (cdr new))))
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(if (eq (nth 1 new) 'intv)
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(setq new (append '(incomplete cplx)
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(cdr (cdr (cdr new))))))))
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(if (and (memq (nth 1 new) '(cplx polar))
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(> (length new) 4))
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(error "Too many components in complex number"))
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(if (and (eq (nth 1 new) 'intv)
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(> (length new) 5))
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(error "Too many components in interval form"))
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(calc-pop-push num new)))))
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(defun calc-semi ()
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(interactive)
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(calc-wrapper
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(let ((num (calc-find-first-incomplete
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(nthcdr calc-stack-top calc-stack) 1)))
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(if (= num 0)
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(error "Not entering a vector or complex number"))
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(let ((inc (calc-top num))
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(stuff (calc-top-list (1- num))))
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(if (eq (nth 1 inc) 'cplx)
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(setq inc (append '(incomplete polar) (cdr (cdr inc))))
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(if (eq (nth 1 inc) 'intv)
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(setq inc (append '(incomplete polar) (cdr (cdr (cdr inc)))))))
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(cond ((eq (nth 1 inc) 'polar)
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(let ((new (append inc stuff)))
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(if (> (length new) 4)
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(error "Too many components in complex number")
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(if (= (length new) 2)
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(setq new (append new '(1)))))
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(calc-pop-push num new)))
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((null stuff)
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(if (> (length inc) 2)
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(if (math-vectorp (nth 2 inc))
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(calc-comma)
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(calc-pop-push 1
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(list 'incomplete 'vec (cdr (cdr inc)))
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(list 'incomplete 'vec)))))
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((math-vectorp (car stuff))
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(calc-comma))
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((eq (car-safe (car-safe (nth (+ num calc-stack-top)
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calc-stack))) 'incomplete)
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(calc-end-vector)
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(calc-comma)
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(let ((calc-algebraic-mode nil)
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(calc-incomplete-algebraic-mode nil))
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(calc-begin-vector)))
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((or (= (length inc) 2)
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(math-vectorp (nth 2 inc)))
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(calc-pop-push num
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(append inc (list (cons 'vec stuff)))
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(list 'incomplete 'vec)))
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(t
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(calc-pop-push num
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(list 'incomplete 'vec
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(cons 'vec (append (cdr (cdr inc)) stuff)))
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(list 'incomplete 'vec))))))))
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(defun calc-digit-dots ()
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(if (eq calc-prev-char ?.)
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(progn
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(delete-backward-char 1)
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(if (calc-minibuffer-contains ".*\\.\\'")
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(delete-backward-char 1))
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(setq calc-prev-char 'dots
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last-command-char 32)
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(if calc-prev-prev-char
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(calcDigit-nondigit)
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(setq calc-digit-value nil)
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(erase-buffer)
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(exit-minibuffer)))
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;; just ignore extra decimal point, anticipating ".."
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(delete-backward-char 1)))
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(defun calc-dots ()
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(interactive)
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(calc-wrapper
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(let ((num (calc-find-first-incomplete
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(nthcdr calc-stack-top calc-stack) 1)))
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(if (= num 0)
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(error "Not entering an interval form"))
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(let* ((inc (calc-top num))
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(stuff (calc-top-list (1- num)))
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(new (append inc stuff)))
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(if (not (eq (nth 1 new) 'intv))
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(setq new (append '(incomplete intv)
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(if (eq (nth 1 new) 'vec) '(2) '(0))
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(cdr (cdr new)))))
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(if (and (null stuff)
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(= (length new) 3))
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(setq new (append new '((neg (var inf var-inf))))))
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(if (> (length new) 5)
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(error "Too many components in interval form"))
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(calc-pop-push num new)))))
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(defun calc-find-first-incomplete (stack n)
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(cond ((null stack)
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0)
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((eq (car-safe (car-safe (car stack))) 'incomplete)
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n)
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(t
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(calc-find-first-incomplete (cdr stack) (1+ n)))))
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(defun calc-incomplete-error (a)
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(cond ((memq (nth 1 a) '(cplx polar))
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(error "Complex number is incomplete"))
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((eq (nth 1 a) 'vec)
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(error "Vector is incomplete"))
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((eq (nth 1 a) 'intv)
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(error "Interval form is incomplete"))
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(t (error "Object is incomplete"))))
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;;; calc-incom.el ends here
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