1 ;;; calc-incom.el --- complex data type input functions for Calc
3 ;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007 Free Software Foundation, Inc.
6 ;; Author: David Gillespie <daveg@synaptics.com>
7 ;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
30 ;; This file is autoloaded from calc-ext.el.
37 (defun calc-begin-complex ()
40 (if (or calc-algebraic-mode calc-incomplete-algebraic-mode)
42 (calc-push (list 'incomplete calc-complex-mode)))))
44 (defun calc-end-complex ()
48 (let ((top (calc-top 1)))
49 (if (and (eq (car-safe top) 'incomplete)
50 (eq (nth 1 top) 'intv))
52 (if (< (length top) 4)
53 (setq top (append top '((neg (var inf var-inf))))))
54 (if (< (length top) 5)
55 (setq top (append top '((var inf var-inf)))))
56 (calc-enter-result 1 "..)" (cdr top)))
57 (if (not (and (eq (car-safe top) 'incomplete)
58 (memq (nth 1 top) '(cplx polar))))
59 (error "Not entering a complex number"))
60 (while (< (length top) 4)
61 (setq top (append top '(0))))
62 (if (not (and (math-realp (nth 2 top))
63 (math-anglep (nth 3 top))))
64 (error "Components must be real"))
65 (calc-enter-result 1 "()" (cdr top))))))
67 (defun calc-begin-vector ()
70 (if (or calc-algebraic-mode calc-incomplete-algebraic-mode)
72 (calc-push '(incomplete vec)))))
74 (defun calc-end-vector ()
78 (let ((top (calc-top 1)))
79 (if (and (eq (car-safe top) 'incomplete)
80 (eq (nth 1 top) 'intv))
82 (if (< (length top) 4)
83 (setq top (append top '((neg (var inf var-inf))))))
84 (if (< (length top) 5)
85 (setq top (append top '((var inf var-inf)))))
86 (setcar (cdr (cdr top)) (1+ (nth 2 top)))
87 (calc-enter-result 1 "..]" (cdr top)))
88 (if (not (and (eq (car-safe top) 'incomplete)
89 (eq (nth 1 top) 'vec)))
90 (error "Not entering a vector"))
91 (calc-pop-push-record 1 "[]" (cdr top))))))
93 (defun calc-comma (&optional allow-polar)
96 (let ((num (calc-find-first-incomplete
97 (nthcdr calc-stack-top calc-stack) 1)))
99 (error "Not entering a vector or complex number"))
100 (let* ((inc (calc-top num))
101 (stuff (calc-top-list (1- num)))
102 (new (append inc stuff)))
103 (if (and (null stuff)
105 (or (eq (nth 1 inc) 'vec)
107 (setq new (append new
108 (if (= (length new) 2)
110 (nthcdr (1- (length new)) new)))))
112 (if (eq (nth 1 new) 'polar)
113 (setq new (append '(incomplete cplx) (cdr (cdr new))))
114 (if (eq (nth 1 new) 'intv)
115 (setq new (append '(incomplete cplx)
116 (cdr (cdr (cdr new))))))))
117 (if (and (memq (nth 1 new) '(cplx polar))
119 (error "Too many components in complex number"))
120 (if (and (eq (nth 1 new) 'intv)
122 (error "Too many components in interval form"))
123 (calc-pop-push num new)))))
128 (let ((num (calc-find-first-incomplete
129 (nthcdr calc-stack-top calc-stack) 1)))
131 (error "Not entering a vector or complex number"))
132 (let ((inc (calc-top num))
133 (stuff (calc-top-list (1- num))))
134 (if (eq (nth 1 inc) 'cplx)
135 (setq inc (append '(incomplete polar) (cdr (cdr inc))))
136 (if (eq (nth 1 inc) 'intv)
137 (setq inc (append '(incomplete polar) (cdr (cdr (cdr inc)))))))
138 (cond ((eq (nth 1 inc) 'polar)
139 (let ((new (append inc stuff)))
140 (if (> (length new) 4)
141 (error "Too many components in complex number")
142 (if (= (length new) 2)
143 (setq new (append new '(1)))))
144 (calc-pop-push num new)))
146 (if (> (length inc) 2)
147 (if (math-vectorp (nth 2 inc))
150 (list 'incomplete 'vec (cdr (cdr inc)))
151 (list 'incomplete 'vec)))))
152 ((math-vectorp (car stuff))
154 ((eq (car-safe (car-safe (nth (+ num calc-stack-top)
155 calc-stack))) 'incomplete)
158 (let ((calc-algebraic-mode nil)
159 (calc-incomplete-algebraic-mode nil))
160 (calc-begin-vector)))
161 ((or (= (length inc) 2)
162 (math-vectorp (nth 2 inc)))
164 (append inc (list (cons 'vec stuff)))
165 (list 'incomplete 'vec)))
168 (list 'incomplete 'vec
169 (cons 'vec (append (cdr (cdr inc)) stuff)))
170 (list 'incomplete 'vec))))))))
172 ;; The following variables are initially declared in calc.el,
173 ;; but are used by calc-digit-dots.
174 (defvar calc-prev-char)
175 (defvar calc-prev-prev-char)
176 (defvar calc-digit-value)
178 (defun calc-digit-dots ()
179 (if (eq calc-prev-char ?.)
181 (delete-backward-char 1)
182 (if (calc-minibuffer-contains ".*\\.\\'")
183 (delete-backward-char 1))
184 (setq calc-prev-char 'dots
185 last-command-char 32)
186 (if calc-prev-prev-char
188 (setq calc-digit-value nil)
189 (let ((inhibit-read-only t))
192 ;; just ignore extra decimal point, anticipating ".."
193 (delete-backward-char 1)))
198 (let ((num (calc-find-first-incomplete
199 (nthcdr calc-stack-top calc-stack) 1)))
201 (error "Not entering an interval form"))
202 (let* ((inc (calc-top num))
203 (stuff (calc-top-list (1- num)))
204 (new (append inc stuff)))
205 (if (not (eq (nth 1 new) 'intv))
206 (setq new (append '(incomplete intv)
207 (if (eq (nth 1 new) 'vec) '(2) '(0))
209 (if (and (null stuff)
211 (setq new (append new '((neg (var inf var-inf))))))
212 (if (> (length new) 5)
213 (error "Too many components in interval form"))
214 (calc-pop-push num new)))))
216 (defun calc-find-first-incomplete (stack n)
219 ((eq (car-safe (car-safe (car stack))) 'incomplete)
222 (calc-find-first-incomplete (cdr stack) (1+ n)))))
224 (defun calc-incomplete-error (a)
225 (cond ((memq (nth 1 a) '(cplx polar))
226 (error "Complex number is incomplete"))
228 (error "Vector is incomplete"))
229 ((eq (nth 1 a) 'intv)
230 (error "Interval form is incomplete"))
231 (t (error "Object is incomplete"))))
233 (provide 'calc-incom)
235 ;;; arch-tag: b8001270-4dc7-481b-a3e3-a952e19b390d
236 ;;; calc-incom.el ends here