(vc-svn-registered): Catch all errors.
[bpt/emacs.git] / lisp / calc / calc-aent.el
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1;;; calc-aent.el --- algebraic entry functions for Calc
2
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3;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
4;; 2005 Free Software Foundation, Inc.
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5
6;; Author: Dave Gillespie <daveg@synaptics.com>
c4446fc2 7;; Maintainer: Jay Belanger <belanger@truman.edu>
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8
9;; This file is part of GNU Emacs.
10
11;; GNU Emacs is distributed in the hope that it will be useful,
12;; but WITHOUT ANY WARRANTY. No author or distributor
13;; accepts responsibility to anyone for the consequences of using it
14;; or for whether it serves any particular purpose or works at all,
15;; unless he says so in writing. Refer to the GNU Emacs General Public
16;; License for full details.
17
18;; Everyone is granted permission to copy, modify and redistribute
19;; GNU Emacs, but only under the conditions described in the
20;; GNU Emacs General Public License. A copy of this license is
21;; supposed to have been given to you along with GNU Emacs so you
22;; can know your rights and responsibilities. It should be in a
23;; file named COPYING. Among other things, the copyright notice
24;; and this notice must be preserved on all copies.
25
3132f345 26;;; Commentary:
136211a9 27
3132f345 28;;; Code:
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29
30;; This file is autoloaded from calc.el.
136211a9 31
5eb3eeda 32(require 'calc)
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33(require 'calc-macs)
34
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35(defun calc-do-quick-calc ()
36 (calc-check-defines)
37 (if (eq major-mode 'calc-mode)
38 (calc-algebraic-entry t)
39 (let (buf shortbuf)
40 (save-excursion
41 (calc-create-buffer)
42 (let* ((calc-command-flags nil)
43 (calc-dollar-values calc-quick-prev-results)
44 (calc-dollar-used 0)
45 (enable-recursive-minibuffers t)
46 (calc-language (if (memq calc-language '(nil big))
47 'flat calc-language))
48 (entry (calc-do-alg-entry "" "Quick calc: " t))
49 (alg-exp (mapcar (function
50 (lambda (x)
5eb3eeda 51 (if (and (not (featurep 'calc-ext))
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52 calc-previous-alg-entry
53 (string-match
54 "\\`[-0-9._+*/^() ]+\\'"
55 calc-previous-alg-entry))
56 (calc-normalize x)
5eb3eeda 57 (require 'calc-ext)
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58 (math-evaluate-expr x))))
59 entry)))
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60 (when (and (= (length alg-exp) 1)
61 (eq (car-safe (car alg-exp)) 'calcFunc-assign)
62 (= (length (car alg-exp)) 3)
63 (eq (car-safe (nth 1 (car alg-exp))) 'var))
5eb3eeda 64 (require 'calc-ext)
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65 (set (nth 2 (nth 1 (car alg-exp))) (nth 2 (car alg-exp)))
66 (calc-refresh-evaltos (nth 2 (nth 1 (car alg-exp))))
67 (setq alg-exp (list (nth 2 (car alg-exp)))))
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68 (setq calc-quick-prev-results alg-exp
69 buf (mapconcat (function (lambda (x)
70 (math-format-value x 1000)))
71 alg-exp
72 " ")
73 shortbuf buf)
74 (if (and (= (length alg-exp) 1)
75 (memq (car-safe (car alg-exp)) '(nil bigpos bigneg))
76 (< (length buf) 20)
77 (= calc-number-radix 10))
78 (setq buf (concat buf " ("
79 (let ((calc-number-radix 16))
80 (math-format-value (car alg-exp) 1000))
81 ", "
82 (let ((calc-number-radix 8))
83 (math-format-value (car alg-exp) 1000))
84 (if (and (integerp (car alg-exp))
85 (> (car alg-exp) 0)
86 (< (car alg-exp) 127))
87 (format ", \"%c\"" (car alg-exp))
88 "")
89 ")")))
f20be8fe 90 (if (and (< (length buf) (frame-width)) (= (length entry) 1)
5eb3eeda 91 (featurep 'calc-ext))
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92 (let ((long (concat (math-format-value (car entry) 1000)
93 " => " buf)))
f20be8fe 94 (if (<= (length long) (- (frame-width) 8))
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95 (setq buf long))))
96 (calc-handle-whys)
97 (message "Result: %s" buf)))
98 (if (eq last-command-char 10)
99 (insert shortbuf)
3cedbf72 100 (kill-new shortbuf)))))
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101
102(defun calc-do-calc-eval (str separator args)
103 (calc-check-defines)
104 (catch 'calc-error
105 (save-excursion
106 (calc-create-buffer)
107 (cond
108 ((and (consp str) (not (symbolp (car str))))
109 (let ((calc-language nil)
110 (math-expr-opers math-standard-opers)
111 (calc-internal-prec 12)
112 (calc-word-size 32)
113 (calc-symbolic-mode nil)
114 (calc-matrix-mode nil)
115 (calc-angle-mode 'deg)
116 (calc-number-radix 10)
117 (calc-leading-zeros nil)
118 (calc-group-digits nil)
119 (calc-point-char ".")
120 (calc-frac-format '(":" nil))
121 (calc-prefer-frac nil)
122 (calc-hms-format "%s@ %s' %s\"")
123 (calc-date-format '((H ":" mm C SS pp " ")
124 Www " " Mmm " " D ", " YYYY))
125 (calc-float-format '(float 0))
126 (calc-full-float-format '(float 0))
127 (calc-complex-format nil)
128 (calc-matrix-just nil)
129 (calc-full-vectors t)
130 (calc-break-vectors nil)
131 (calc-vector-commas ",")
132 (calc-vector-brackets "[]")
133 (calc-matrix-brackets '(R O))
134 (calc-complex-mode 'cplx)
135 (calc-infinite-mode nil)
136 (calc-display-strings nil)
137 (calc-simplify-mode nil)
138 (calc-display-working-message 'lots)
139 (strp (cdr str)))
140 (while strp
141 (set (car strp) (nth 1 strp))
142 (setq strp (cdr (cdr strp))))
143 (calc-do-calc-eval (car str) separator args)))
144 ((eq separator 'eval)
145 (eval str))
146 ((eq separator 'macro)
5eb3eeda 147 (require 'calc-ext)
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148 (let* ((calc-buffer (current-buffer))
149 (calc-window (get-buffer-window calc-buffer))
150 (save-window (selected-window)))
151 (if calc-window
152 (unwind-protect
153 (progn
154 (select-window calc-window)
155 (calc-execute-kbd-macro str nil (car args)))
156 (and (window-point save-window)
157 (select-window save-window)))
158 (save-window-excursion
159 (select-window (get-largest-window))
160 (switch-to-buffer calc-buffer)
161 (calc-execute-kbd-macro str nil (car args)))))
162 nil)
163 ((eq separator 'pop)
164 (or (not (integerp str))
165 (= str 0)
166 (calc-pop (min str (calc-stack-size))))
167 (calc-stack-size))
168 ((eq separator 'top)
169 (and (integerp str)
170 (> str 0)
171 (<= str (calc-stack-size))
172 (math-format-value (calc-top-n str (car args)) 1000)))
173 ((eq separator 'rawtop)
174 (and (integerp str)
175 (> str 0)
176 (<= str (calc-stack-size))
177 (calc-top-n str (car args))))
178 (t
179 (let* ((calc-command-flags nil)
180 (calc-next-why nil)
181 (calc-language (if (memq calc-language '(nil big))
182 'flat calc-language))
183 (calc-dollar-values (mapcar
184 (function
185 (lambda (x)
186 (if (stringp x)
187 (progn
188 (setq x (math-read-exprs x))
189 (if (eq (car-safe x)
190 'error)
191 (throw 'calc-error
192 (calc-eval-error
193 (cdr x)))
194 (car x)))
195 x)))
196 args))
197 (calc-dollar-used 0)
198 (res (if (stringp str)
199 (math-read-exprs str)
200 (list str)))
201 buf)
202 (if (eq (car res) 'error)
203 (calc-eval-error (cdr res))
204 (setq res (mapcar 'calc-normalize res))
205 (and (memq 'clear-message calc-command-flags)
206 (message ""))
207 (cond ((eq separator 'pred)
5eb3eeda 208 (require 'calc-ext)
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209 (if (= (length res) 1)
210 (math-is-true (car res))
211 (calc-eval-error '(0 "Single value expected"))))
212 ((eq separator 'raw)
213 (if (= (length res) 1)
214 (car res)
215 (calc-eval-error '(0 "Single value expected"))))
216 ((eq separator 'list)
217 res)
218 ((memq separator '(num rawnum))
219 (if (= (length res) 1)
220 (if (math-constp (car res))
221 (if (eq separator 'num)
222 (math-format-value (car res) 1000)
223 (car res))
224 (calc-eval-error
225 (list 0
226 (if calc-next-why
227 (calc-explain-why (car calc-next-why))
228 "Number expected"))))
229 (calc-eval-error '(0 "Single value expected"))))
230 ((eq separator 'push)
231 (calc-push-list res)
232 nil)
233 (t (while res
234 (setq buf (concat buf
235 (and buf (or separator ", "))
236 (math-format-value (car res) 1000))
237 res (cdr res)))
07ff2bc8 238 buf)))))))))
136211a9 239
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240(defvar calc-eval-error nil
241 "Determines how calc handles errors.
242NIL means return a list containing the character position of error.
243STRING means return error message as string rather than list.
244T means abort and give an error message.")
245
136211a9 246(defun calc-eval-error (msg)
d37f2979 247 (if calc-eval-error
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248 (if (eq calc-eval-error 'string)
249 (nth 1 msg)
250 (error "%s" (nth 1 msg)))
07ff2bc8 251 msg))
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252
253
254;;;; Reading an expression in algebraic form.
255
256(defun calc-auto-algebraic-entry (&optional prefix)
257 (interactive "P")
07ff2bc8 258 (calc-algebraic-entry prefix t))
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259
260(defun calc-algebraic-entry (&optional prefix auto)
261 (interactive "P")
262 (calc-wrapper
263 (let ((calc-language (if prefix nil calc-language))
264 (math-expr-opers (if prefix math-standard-opers math-expr-opers)))
07ff2bc8 265 (calc-alg-entry (and auto (char-to-string last-command-char))))))
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266
267(defun calc-alg-entry (&optional initial prompt)
268 (let* ((sel-mode nil)
269 (calc-dollar-values (mapcar 'calc-get-stack-element
270 (nthcdr calc-stack-top calc-stack)))
271 (calc-dollar-used 0)
272 (calc-plain-entry t)
273 (alg-exp (calc-do-alg-entry initial prompt t)))
274 (if (stringp alg-exp)
275 (progn
5eb3eeda 276 (require 'calc-ext)
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277 (calc-alg-edit alg-exp))
278 (let* ((calc-simplify-mode (if (eq last-command-char ?\C-j)
279 'none
280 calc-simplify-mode))
281 (nvals (mapcar 'calc-normalize alg-exp)))
282 (while alg-exp
5eb3eeda 283 (calc-record (if (featurep 'calc-ext) (car alg-exp) (car nvals))
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284 "alg'")
285 (calc-pop-push-record-list calc-dollar-used
286 (and (not (equal (car alg-exp)
287 (car nvals)))
5eb3eeda 288 (featurep 'calc-ext)
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289 "")
290 (list (car nvals)))
291 (setq alg-exp (cdr alg-exp)
292 nvals (cdr nvals)
293 calc-dollar-used 0)))
07ff2bc8 294 (calc-handle-whys))))
136211a9 295
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296(defvar calc-alg-ent-map nil
297 "The keymap used for algebraic entry.")
298
299(defvar calc-alg-ent-esc-map nil
300 "The keymap used for escapes in algebraic entry.")
301
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302(defvar calc-alg-exp)
303
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304(defun calc-do-alg-entry (&optional initial prompt no-normalize)
305 (let* ((calc-buffer (current-buffer))
4db56602 306 (blink-paren-function 'calcAlg-blink-matching-open)
3cedbf72 307 (calc-alg-exp 'error))
1480882c 308 (unless calc-alg-ent-map
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309 (setq calc-alg-ent-map (copy-keymap minibuffer-local-map))
310 (define-key calc-alg-ent-map "'" 'calcAlg-previous)
311 (define-key calc-alg-ent-map "`" 'calcAlg-edit)
312 (define-key calc-alg-ent-map "\C-m" 'calcAlg-enter)
313 (define-key calc-alg-ent-map "\C-j" 'calcAlg-enter)
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314 (let ((i 33))
315 (setq calc-alg-ent-esc-map (copy-keymap esc-map))
316 (while (< i 127)
317 (aset (nth 1 calc-alg-ent-esc-map) i 'calcAlg-escape)
318 (setq i (1+ i)))))
319 (define-key calc-alg-ent-map "\e" nil)
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320 (if (eq calc-algebraic-mode 'total)
321 (define-key calc-alg-ent-map "\e" calc-alg-ent-esc-map)
322 (define-key calc-alg-ent-map "\ep" 'calcAlg-plus-minus)
323 (define-key calc-alg-ent-map "\em" 'calcAlg-mod)
324 (define-key calc-alg-ent-map "\e=" 'calcAlg-equals)
325 (define-key calc-alg-ent-map "\e\r" 'calcAlg-equals)
326 (define-key calc-alg-ent-map "\e%" 'self-insert-command))
327 (setq calc-aborted-prefix nil)
328 (let ((buf (read-from-minibuffer (or prompt "Algebraic: ")
329 (or initial "")
330 calc-alg-ent-map nil)))
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331 (when (eq calc-alg-exp 'error)
332 (when (eq (car-safe (setq calc-alg-exp (math-read-exprs buf))) 'error)
333 (setq calc-alg-exp nil)))
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334 (setq calc-aborted-prefix "alg'")
335 (or no-normalize
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336 (and calc-alg-exp (setq calc-alg-exp (mapcar 'calc-normalize calc-alg-exp))))
337 calc-alg-exp)))
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338
339(defun calcAlg-plus-minus ()
340 (interactive)
341 (if (calc-minibuffer-contains ".* \\'")
342 (insert "+/- ")
07ff2bc8 343 (insert " +/- ")))
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344
345(defun calcAlg-mod ()
346 (interactive)
347 (if (not (calc-minibuffer-contains ".* \\'"))
348 (insert " "))
349 (if (calc-minibuffer-contains ".* mod +\\'")
350 (if calc-previous-modulo
351 (insert (math-format-flat-expr calc-previous-modulo 0))
352 (beep))
07ff2bc8 353 (insert "mod ")))
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354
355(defun calcAlg-previous ()
356 (interactive)
aa9208fb 357 (if (calc-minibuffer-contains "\\'")
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358 (if calc-previous-alg-entry
359 (insert calc-previous-alg-entry)
360 (beep))
07ff2bc8 361 (insert "'")))
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362
363(defun calcAlg-equals ()
364 (interactive)
365 (unwind-protect
366 (calcAlg-enter)
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367 (if (consp calc-alg-exp)
368 (progn (setq prefix-arg (length calc-alg-exp))
07ff2bc8 369 (calc-unread-command ?=)))))
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370
371(defun calcAlg-escape ()
372 (interactive)
373 (calc-unread-command)
374 (save-excursion
375 (calc-select-buffer)
376 (use-local-map calc-mode-map))
07ff2bc8 377 (calcAlg-enter))
136211a9 378
3132f345 379(defvar calc-plain-entry nil)
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380(defun calcAlg-edit ()
381 (interactive)
382 (if (or (not calc-plain-entry)
383 (calc-minibuffer-contains
384 "\\`\\([^\"]*\"[^\"]*\"\\)*[^\"]*\"[^\"]*\\'"))
385 (insert "`")
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386 (setq calc-alg-exp (minibuffer-contents))
387 (and (> (length calc-alg-exp) 0) (setq calc-previous-alg-entry calc-alg-exp))
07ff2bc8 388 (exit-minibuffer)))
136211a9 389
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390(defvar calc-buffer)
391
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392(defun calcAlg-enter ()
393 (interactive)
f20be8fe 394 (let* ((str (minibuffer-contents))
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395 (exp (and (> (length str) 0)
396 (save-excursion
397 (set-buffer calc-buffer)
398 (math-read-exprs str)))))
399 (if (eq (car-safe exp) 'error)
400 (progn
f20be8fe 401 (goto-char (minibuffer-prompt-end))
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402 (forward-char (nth 1 exp))
403 (beep)
404 (calc-temp-minibuffer-message
405 (concat " [" (or (nth 2 exp) "Error") "]"))
406 (calc-clear-unread-commands))
3cedbf72 407 (setq calc-alg-exp (if (calc-minibuffer-contains "\\` *\\[ *\\'")
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408 '((incomplete vec))
409 exp))
410 (and (> (length str) 0) (setq calc-previous-alg-entry str))
07ff2bc8 411 (exit-minibuffer))))
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412
413(defun calcAlg-blink-matching-open ()
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414 (let ((rightpt (point))
415 (leftpt nil)
416 (rightchar (preceding-char))
417 leftchar
418 rightsyntax
419 leftsyntax)
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420 (save-excursion
421 (condition-case ()
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422 (setq leftpt (scan-sexps rightpt -1)
423 leftchar (char-after leftpt))
424 (error nil)))
425 (if (and leftpt
426 (or (and (= rightchar ?\))
427 (= leftchar ?\[))
428 (and (= rightchar ?\])
429 (= leftchar ?\()))
430 (save-excursion
431 (goto-char leftpt)
432 (looking-at ".+\\(\\.\\.\\|\\\\dots\\|\\\\ldots\\)")))
433 (let ((leftsaved (aref (syntax-table) leftchar))
434 (rightsaved (aref (syntax-table) rightchar)))
435 (unwind-protect
436 (progn
437 (cond ((= leftchar ?\[)
438 (aset (syntax-table) leftchar (cons 4 ?\)))
439 (aset (syntax-table) rightchar (cons 5 ?\[)))
440 (t
441 (aset (syntax-table) leftchar (cons 4 ?\]))
442 (aset (syntax-table) rightchar (cons 5 ?\())))
443 (blink-matching-open))
444 (aset (syntax-table) leftchar leftsaved)
445 (aset (syntax-table) rightchar rightsaved)))
07ff2bc8 446 (blink-matching-open))))
136211a9 447
136211a9 448(defun calc-alg-digit-entry ()
a1506d29 449 (calc-alg-entry
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450 (cond ((eq last-command-char ?e)
451 (if (> calc-number-radix 14) (format "%d.^" calc-number-radix) "1e"))
452 ((eq last-command-char ?#) (format "%d#" calc-number-radix))
453 ((eq last-command-char ?_) "-")
454 ((eq last-command-char ?@) "0@ ")
07ff2bc8 455 (t (char-to-string last-command-char)))))
136211a9 456
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457;; The variable calc-digit-value is initially declared in calc.el,
458;; but can be set by calcDigit-algebraic and calcDigit-edit.
459(defvar calc-digit-value)
460
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461(defun calcDigit-algebraic ()
462 (interactive)
463 (if (calc-minibuffer-contains ".*[@oh] *[^'m ]+[^'m]*\\'")
464 (calcDigit-key)
f20be8fe 465 (setq calc-digit-value (minibuffer-contents))
07ff2bc8 466 (exit-minibuffer)))
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467
468(defun calcDigit-edit ()
469 (interactive)
470 (calc-unread-command)
f20be8fe 471 (setq calc-digit-value (minibuffer-contents))
07ff2bc8 472 (exit-minibuffer))
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473
474
475;;; Algebraic expression parsing. [Public]
476
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477(defvar math-read-replacement-list
478 '(;; Misc symbols
479 ("±" "+/-") ; plus or minus
480 ("×" "*") ; multiplication sign
481 ("÷" ":") ; division sign
482 ("−" "-") ; subtraction sign
483 ("∕" "/") ; division sign
484 ("∗" "*") ; asterisk multiplication
485 ("∞" "inf") ; infinity symbol
486 ("≤" "<=")
487 ("≥" ">=")
488 ("≦" "<=")
489 ("≧" ">=")
490 ;; fractions
491 ("¼" "(1:4)") ; 1/4
492 ("½" "(1:2)") ; 1/2
493 ("¾" "(3:4)") ; 3/4
494 ("⅓" "(1:3)") ; 1/3
495 ("⅔" "(2:3)") ; 2/3
496 ("⅕" "(1:5)") ; 1/5
497 ("⅖" "(2:5)") ; 2/5
498 ("⅗" "(3:5)") ; 3/5
499 ("⅘" "(4:5)") ; 4/5
500 ("⅙" "(1:6)") ; 1/6
501 ("⅚" "(5:6)") ; 5/6
502 ("⅛" "(1:8)") ; 1/8
503 ("⅜" "(3:8)") ; 3/8
504 ("⅝" "(5:8)") ; 5/8
505 ("⅞" "(7:8)") ; 7/8
506 ("⅟" "1:") ; 1/...
507 ;; superscripts
508 ("⁰" "0") ; 0
509 ("¹" "1") ; 1
510 ("²" "2") ; 2
511 ("³" "3") ; 3
512 ("⁴" "4") ; 4
513 ("⁵" "5") ; 5
514 ("⁶" "6") ; 6
515 ("⁷" "7") ; 7
516 ("⁸" "8") ; 8
517 ("⁹" "9") ; 9
518 ("⁺" "+") ; +
519 ("⁻" "-") ; -
520 ("⁽" "(") ; (
521 ("⁾" ")") ; )
522 ("ⁿ" "n") ; n
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523 ("ⁱ" "i") ; i
524 ;; subscripts
525 ("₀" "0") ; 0
526 ("₁" "1") ; 1
527 ("₂" "2") ; 2
528 ("₃" "3") ; 3
529 ("₄" "4") ; 4
530 ("₅" "5") ; 5
531 ("₆" "6") ; 6
532 ("₇" "7") ; 7
533 ("₈" "8") ; 8
534 ("₉" "9") ; 9
535 ("₊" "+") ; +
536 ("₋" "-") ; -
537 ("₍" "(") ; (
538 ("₎" ")")) ; )
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539 "A list whose elements (old new) indicate replacements to make
540in Calc algebraic input.")
541
542(defvar math-read-superscripts
543 "⁰¹²³⁴⁵⁶⁷⁸⁹⁺⁻⁽⁾ⁿⁱ" ; 0123456789+-()ni
544 "A string consisting of the superscripts allowed by Calc.")
545
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546(defvar math-read-subscripts
547 "₀₁₂₃₄₅₆₇₈₉₊₋₍₎" ; 0123456789+-()
548 "A string consisting of the subscripts allowed by Calc.")
549
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550(defun math-read-preprocess-string (str)
551 "Replace some substrings of STR by Calc equivalents."
552 (setq str
553 (replace-regexp-in-string (concat "[" math-read-superscripts "]+")
554 "^(\\&)" str))
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555 (setq str
556 (replace-regexp-in-string (concat "[" math-read-subscripts "]+")
557 "_(\\&)" str))
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558 (let ((rep-list math-read-replacement-list))
559 (while rep-list
560 (setq str
561 (replace-regexp-in-string (nth 0 (car rep-list))
562 (nth 1 (car rep-list)) str))
563 (setq rep-list (cdr rep-list))))
564 str)
565
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566;; The next few variables are local to math-read-exprs (and math-read-expr
567;; in calc-ext.el), but are set in functions they call.
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568
569(defvar math-exp-pos)
570(defvar math-exp-str)
571(defvar math-exp-old-pos)
572(defvar math-exp-token)
573(defvar math-exp-keep-spaces)
d37f2979 574(defvar math-expr-data)
3cedbf72
JB
575
576(defun math-read-exprs (math-exp-str)
577 (let ((math-exp-pos 0)
578 (math-exp-old-pos 0)
579 (math-exp-keep-spaces nil)
580 math-exp-token math-expr-data)
c4446fc2 581 (setq math-exp-str (math-read-preprocess-string math-exp-str))
136211a9 582 (if calc-language-input-filter
3cedbf72
JB
583 (setq math-exp-str (funcall calc-language-input-filter math-exp-str)))
584 (while (setq math-exp-token (string-match "\\.\\.\\([^.]\\|.[^.]\\)" math-exp-str))
585 (setq math-exp-str (concat (substring math-exp-str 0 math-exp-token) "\\dots"
586 (substring math-exp-str (+ math-exp-token 2)))))
136211a9
EZ
587 (math-build-parse-table)
588 (math-read-token)
589 (let ((val (catch 'syntax (math-read-expr-list))))
590 (if (stringp val)
3cedbf72
JB
591 (list 'error math-exp-old-pos val)
592 (if (equal math-exp-token 'end)
136211a9 593 val
3cedbf72 594 (list 'error math-exp-old-pos "Syntax error"))))))
136211a9
EZ
595
596(defun math-read-expr-list ()
3cedbf72 597 (let* ((math-exp-keep-spaces nil)
136211a9
EZ
598 (val (list (math-read-expr-level 0)))
599 (last val))
abd880c3 600 (while (equal math-expr-data ",")
136211a9
EZ
601 (math-read-token)
602 (let ((rest (list (math-read-expr-level 0))))
603 (setcdr last rest)
604 (setq last rest)))
07ff2bc8 605 val))
136211a9 606
3132f345
CW
607(defvar calc-user-parse-table nil)
608(defvar calc-last-main-parse-table nil)
609(defvar calc-last-lang-parse-table nil)
610(defvar calc-user-tokens nil)
611(defvar calc-user-token-chars nil)
136211a9 612
3cedbf72
JB
613(defvar math-toks nil
614 "Tokens to pass between math-build-parse-table and math-find-user-tokens.")
615
136211a9
EZ
616(defun math-build-parse-table ()
617 (let ((mtab (cdr (assq nil calc-user-parse-tables)))
618 (ltab (cdr (assq calc-language calc-user-parse-tables))))
619 (or (and (eq mtab calc-last-main-parse-table)
620 (eq ltab calc-last-lang-parse-table))
621 (let ((p (append mtab ltab))
3cedbf72 622 (math-toks nil))
136211a9
EZ
623 (setq calc-user-parse-table p)
624 (setq calc-user-token-chars nil)
625 (while p
626 (math-find-user-tokens (car (car p)))
627 (setq p (cdr p)))
628 (setq calc-user-tokens (mapconcat 'identity
3cedbf72 629 (sort (mapcar 'car math-toks)
136211a9
EZ
630 (function (lambda (x y)
631 (> (length x)
632 (length y)))))
633 "\\|")
634 calc-last-main-parse-table mtab
07ff2bc8 635 calc-last-lang-parse-table ltab)))))
136211a9 636
3cedbf72 637(defun math-find-user-tokens (p)
136211a9
EZ
638 (while p
639 (cond ((and (stringp (car p))
640 (or (> (length (car p)) 1) (equal (car p) "$")
641 (equal (car p) "\""))
642 (string-match "[^a-zA-Z0-9]" (car p)))
643 (let ((s (regexp-quote (car p))))
644 (if (string-match "\\`[a-zA-Z0-9]" s)
645 (setq s (concat "\\<" s)))
646 (if (string-match "[a-zA-Z0-9]\\'" s)
647 (setq s (concat s "\\>")))
3cedbf72 648 (or (assoc s math-toks)
136211a9 649 (progn
3cedbf72 650 (setq math-toks (cons (list s) math-toks))
136211a9
EZ
651 (or (memq (aref (car p) 0) calc-user-token-chars)
652 (setq calc-user-token-chars
653 (cons (aref (car p) 0)
654 calc-user-token-chars)))))))
655 ((consp (car p))
656 (math-find-user-tokens (nth 1 (car p)))
657 (or (eq (car (car p)) '\?)
658 (math-find-user-tokens (nth 2 (car p))))))
07ff2bc8 659 (setq p (cdr p))))
136211a9
EZ
660
661(defun math-read-token ()
3cedbf72
JB
662 (if (>= math-exp-pos (length math-exp-str))
663 (setq math-exp-old-pos math-exp-pos
664 math-exp-token 'end
abd880c3 665 math-expr-data "\000")
3cedbf72
JB
666 (let ((ch (aref math-exp-str math-exp-pos)))
667 (setq math-exp-old-pos math-exp-pos)
136211a9 668 (cond ((memq ch '(32 10 9))
3cedbf72
JB
669 (setq math-exp-pos (1+ math-exp-pos))
670 (if math-exp-keep-spaces
671 (setq math-exp-token 'space
abd880c3 672 math-expr-data " ")
136211a9
EZ
673 (math-read-token)))
674 ((and (memq ch calc-user-token-chars)
675 (let ((case-fold-search nil))
3cedbf72
JB
676 (eq (string-match calc-user-tokens math-exp-str math-exp-pos)
677 math-exp-pos)))
678 (setq math-exp-token 'punc
679 math-expr-data (math-match-substring math-exp-str 0)
680 math-exp-pos (match-end 0)))
136211a9
EZ
681 ((or (and (>= ch ?a) (<= ch ?z))
682 (and (>= ch ?A) (<= ch ?Z)))
683 (string-match (if (memq calc-language '(c fortran pascal maple))
684 "[a-zA-Z0-9_#]*"
685 "[a-zA-Z0-9'#]*")
3cedbf72
JB
686 math-exp-str math-exp-pos)
687 (setq math-exp-token 'symbol
688 math-exp-pos (match-end 0)
abd880c3 689 math-expr-data (math-restore-dashes
3cedbf72 690 (math-match-substring math-exp-str 0)))
136211a9 691 (if (eq calc-language 'eqn)
abd880c3 692 (let ((code (assoc math-expr-data math-eqn-ignore-words)))
136211a9
EZ
693 (cond ((null code))
694 ((null (cdr code))
695 (math-read-token))
696 ((consp (nth 1 code))
697 (math-read-token)
abd880c3
JB
698 (if (assoc math-expr-data (cdr code))
699 (setq math-expr-data (format "%s %s"
700 (car code) math-expr-data))))
136211a9 701 ((eq (nth 1 code) 'punc)
3cedbf72 702 (setq math-exp-token 'punc
abd880c3 703 math-expr-data (nth 2 code)))
136211a9
EZ
704 (t
705 (math-read-token)
706 (math-read-token))))))
707 ((or (and (>= ch ?0) (<= ch ?9))
708 (and (eq ch '?\.)
3cedbf72
JB
709 (eq (string-match "\\.[0-9]" math-exp-str math-exp-pos)
710 math-exp-pos))
136211a9 711 (and (eq ch '?_)
3cedbf72
JB
712 (eq (string-match "_\\.?[0-9]" math-exp-str math-exp-pos)
713 math-exp-pos)
714 (or (eq math-exp-pos 0)
136211a9 715 (and (memq calc-language '(nil flat big unform
434e6899 716 tex latex eqn))
136211a9 717 (eq (string-match "[^])}\"a-zA-Z0-9'$]_"
3cedbf72
JB
718 math-exp-str (1- math-exp-pos))
719 (1- math-exp-pos))))))
136211a9 720 (or (and (eq calc-language 'c)
3cedbf72
JB
721 (string-match "0[xX][0-9a-fA-F]+" math-exp-str math-exp-pos))
722 (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]+\\)?\"?\\)?"
723 math-exp-str math-exp-pos))
724 (setq math-exp-token 'number
725 math-expr-data (math-match-substring math-exp-str 0)
726 math-exp-pos (match-end 0)))
136211a9
EZ
727 ((eq ch ?\$)
728 (if (and (eq calc-language 'pascal)
729 (eq (string-match
730 "\\(\\$[0-9a-fA-F]+\\)\\($\\|[^0-9a-zA-Z]\\)"
3cedbf72
JB
731 math-exp-str math-exp-pos)
732 math-exp-pos))
733 (setq math-exp-token 'number
734 math-expr-data (math-match-substring math-exp-str 1)
735 math-exp-pos (match-end 1))
736 (if (eq (string-match "\\$\\([1-9][0-9]*\\)" math-exp-str math-exp-pos)
737 math-exp-pos)
36692c4a 738 (setq math-expr-data (- (string-to-number (math-match-substring
3cedbf72
JB
739 math-exp-str 1))))
740 (string-match "\\$+" math-exp-str math-exp-pos)
abd880c3 741 (setq math-expr-data (- (match-end 0) (match-beginning 0))))
3cedbf72
JB
742 (setq math-exp-token 'dollar
743 math-exp-pos (match-end 0))))
136211a9 744 ((eq ch ?\#)
3cedbf72
JB
745 (if (eq (string-match "#\\([1-9][0-9]*\\)" math-exp-str math-exp-pos)
746 math-exp-pos)
36692c4a 747 (setq math-expr-data (string-to-number
3cedbf72
JB
748 (math-match-substring math-exp-str 1))
749 math-exp-pos (match-end 0))
abd880c3 750 (setq math-expr-data 1
3cedbf72
JB
751 math-exp-pos (1+ math-exp-pos)))
752 (setq math-exp-token 'hash))
136211a9 753 ((eq (string-match "~=\\|<=\\|>=\\|<>\\|/=\\|\\+/-\\|\\\\dots\\|\\\\ldots\\|\\*\\*\\|<<\\|>>\\|==\\|!=\\|&&&\\||||\\|!!!\\|&&\\|||\\|!!\\|:=\\|::\\|=>"
3cedbf72
JB
754 math-exp-str math-exp-pos)
755 math-exp-pos)
756 (setq math-exp-token 'punc
757 math-expr-data (math-match-substring math-exp-str 0)
758 math-exp-pos (match-end 0)))
136211a9 759 ((and (eq ch ?\")
3cedbf72
JB
760 (string-match "\\(\"\\([^\"\\]\\|\\\\.\\)*\\)\\(\"\\|\\'\\)"
761 math-exp-str math-exp-pos))
136211a9
EZ
762 (if (eq calc-language 'eqn)
763 (progn
3cedbf72
JB
764 (setq math-exp-str (copy-sequence math-exp-str))
765 (aset math-exp-str (match-beginning 1) ?\{)
766 (if (< (match-end 1) (length math-exp-str))
767 (aset math-exp-str (match-end 1) ?\}))
136211a9 768 (math-read-token))
3cedbf72
JB
769 (setq math-exp-token 'string
770 math-expr-data (math-match-substring math-exp-str 1)
771 math-exp-pos (match-end 0))))
a6ab3125 772 ((and (= ch ?\\) (eq calc-language 'tex)
3cedbf72
JB
773 (< math-exp-pos (1- (length math-exp-str))))
774 (or (string-match "\\\\hbox *{\\([a-zA-Z0-9]+\\)}"
775 math-exp-str math-exp-pos)
776 (string-match "\\(\\\\\\([a-zA-Z]+\\|[^a-zA-Z]\\)\\)"
777 math-exp-str math-exp-pos))
778 (setq math-exp-token 'symbol
779 math-exp-pos (match-end 0)
abd880c3 780 math-expr-data (math-restore-dashes
3cedbf72 781 (math-match-substring math-exp-str 1)))
a6ab3125
JB
782 (let ((code (assoc math-expr-data math-latex-ignore-words)))
783 (cond ((null code))
784 ((null (cdr code))
785 (math-read-token))
786 ((eq (nth 1 code) 'punc)
787 (setq math-exp-token 'punc
788 math-expr-data (nth 2 code)))
789 ((and (eq (nth 1 code) 'mat)
790 (string-match " *{" math-exp-str math-exp-pos))
791 (setq math-exp-pos (match-end 0)
792 math-exp-token 'punc
793 math-expr-data "[")
794 (let ((right (string-match "}" math-exp-str math-exp-pos)))
795 (and right
796 (setq math-exp-str (copy-sequence math-exp-str))
797 (aset math-exp-str right ?\])))))))
798 ((and (= ch ?\\) (eq calc-language 'latex)
799 (< math-exp-pos (1- (length math-exp-str))))
800 (or (string-match "\\\\hbox *{\\([a-zA-Z0-9]+\\)}"
801 math-exp-str math-exp-pos)
802 (string-match "\\\\text *{\\([a-zA-Z0-9]+\\)}"
803 math-exp-str math-exp-pos)
804 (string-match "\\(\\\\\\([a-zA-Z]+\\|[^a-zA-Z]\\)\\)"
805 math-exp-str math-exp-pos))
806 (setq math-exp-token 'symbol
807 math-exp-pos (match-end 0)
808 math-expr-data (math-restore-dashes
809 (math-match-substring math-exp-str 1)))
dba763ee
JB
810 (let ((code (assoc math-expr-data math-tex-ignore-words))
811 envname)
136211a9
EZ
812 (cond ((null code))
813 ((null (cdr code))
814 (math-read-token))
815 ((eq (nth 1 code) 'punc)
3cedbf72 816 (setq math-exp-token 'punc
abd880c3 817 math-expr-data (nth 2 code)))
8d5cd172
JB
818 ((and (eq (nth 1 code) 'begenv)
819 (string-match " *{\\([^}]*\\)}" math-exp-str math-exp-pos))
820 (setq math-exp-pos (match-end 0)
821 envname (match-string 1 math-exp-str)
822 math-exp-token 'punc
823 math-expr-data "[")
824 (cond ((or (string= envname "matrix")
825 (string= envname "bmatrix")
84d77b1e 826 (string= envname "smallmatrix")
8d5cd172 827 (string= envname "pmatrix"))
dba763ee
JB
828 (if (string-match (concat "\\\\end{" envname "}")
829 math-exp-str math-exp-pos)
8d5cd172
JB
830 (setq math-exp-str
831 (replace-match "]" t t math-exp-str))
832 (error "%s" (concat "No closing \\end{" envname "}"))))))
833 ((and (eq (nth 1 code) 'mat)
834 (string-match " *{" math-exp-str math-exp-pos))
3cedbf72
JB
835 (setq math-exp-pos (match-end 0)
836 math-exp-token 'punc
abd880c3 837 math-expr-data "[")
3cedbf72 838 (let ((right (string-match "}" math-exp-str math-exp-pos)))
136211a9 839 (and right
3cedbf72
JB
840 (setq math-exp-str (copy-sequence math-exp-str))
841 (aset math-exp-str right ?\])))))))
136211a9
EZ
842 ((and (= ch ?\.) (eq calc-language 'fortran)
843 (eq (string-match "\\.[a-zA-Z][a-zA-Z][a-zA-Z]?\\."
3cedbf72
JB
844 math-exp-str math-exp-pos) math-exp-pos))
845 (setq math-exp-token 'punc
846 math-expr-data (upcase (math-match-substring math-exp-str 0))
847 math-exp-pos (match-end 0)))
136211a9 848 ((and (eq calc-language 'math)
3cedbf72
JB
849 (eq (string-match "\\[\\[\\|->\\|:>" math-exp-str math-exp-pos)
850 math-exp-pos))
851 (setq math-exp-token 'punc
852 math-expr-data (math-match-substring math-exp-str 0)
853 math-exp-pos (match-end 0)))
136211a9
EZ
854 ((and (eq calc-language 'eqn)
855 (eq (string-match "->\\|<-\\|+-\\|\\\\dots\\|~\\|\\^"
3cedbf72
JB
856 math-exp-str math-exp-pos)
857 math-exp-pos))
858 (setq math-exp-token 'punc
859 math-expr-data (math-match-substring math-exp-str 0)
860 math-exp-pos (match-end 0))
861 (and (eq (string-match "\\\\dots\\." math-exp-str math-exp-pos)
862 math-exp-pos)
863 (setq math-exp-pos (match-end 0)))
abd880c3 864 (if (memq (aref math-expr-data 0) '(?~ ?^))
136211a9 865 (math-read-token)))
3cedbf72
JB
866 ((eq (string-match "%%.*$" math-exp-str math-exp-pos) math-exp-pos)
867 (setq math-exp-pos (match-end 0))
136211a9
EZ
868 (math-read-token))
869 (t
434e6899 870 (if (and (eq ch ?\{) (memq calc-language '(tex latex eqn)))
136211a9 871 (setq ch ?\())
434e6899 872 (if (and (eq ch ?\}) (memq calc-language '(tex latex eqn)))
136211a9 873 (setq ch ?\)))
434e6899 874 (if (and (eq ch ?\&) (memq calc-language '(tex latex)))
136211a9 875 (setq ch ?\,))
3cedbf72 876 (setq math-exp-token 'punc
abd880c3 877 math-expr-data (char-to-string ch)
3cedbf72 878 math-exp-pos (1+ math-exp-pos)))))))
136211a9 879
d37f2979
JB
880(defconst math-alg-inequalities
881 '(calcFunc-lt calcFunc-gt calcFunc-leq calcFunc-geq
882 calcFunc-eq calcFunc-neq))
136211a9
EZ
883
884(defun math-read-expr-level (exp-prec &optional exp-term)
885 (let* ((x (math-read-factor)) (first t) op op2)
886 (while (and (or (and calc-user-parse-table
887 (setq op (calc-check-user-syntax x exp-prec))
888 (setq x op
889 op '("2x" ident 999999 -1)))
abd880c3 890 (and (setq op (assoc math-expr-data math-expr-opers))
136211a9
EZ
891 (/= (nth 2 op) -1)
892 (or (and (setq op2 (assoc
abd880c3 893 math-expr-data
136211a9
EZ
894 (cdr (memq op math-expr-opers))))
895 (eq (= (nth 3 op) -1)
896 (/= (nth 3 op2) -1))
897 (eq (= (nth 3 op2) -1)
898 (not (math-factor-after)))
899 (setq op op2))
900 t))
901 (and (or (eq (nth 2 op) -1)
3cedbf72 902 (memq math-exp-token '(symbol number dollar hash))
abd880c3
JB
903 (equal math-expr-data "(")
904 (and (equal math-expr-data "[")
136211a9 905 (not (eq calc-language 'math))
3cedbf72 906 (not (and math-exp-keep-spaces
136211a9 907 (eq (car-safe x) 'vec)))))
abd880c3 908 (or (not (setq op (assoc math-expr-data math-expr-opers)))
136211a9
EZ
909 (/= (nth 2 op) -1))
910 (or (not calc-user-parse-table)
3cedbf72 911 (not (eq math-exp-token 'symbol))
136211a9
EZ
912 (let ((p calc-user-parse-table))
913 (while (and p
914 (or (not (integerp
915 (car (car (car p)))))
916 (not (equal
917 (nth 1 (car (car p)))
abd880c3 918 math-expr-data))))
136211a9
EZ
919 (setq p (cdr p)))
920 (not p)))
921 (setq op (assoc "2x" math-expr-opers))))
abd880c3 922 (not (and exp-term (equal math-expr-data exp-term)))
136211a9
EZ
923 (>= (nth 2 op) exp-prec))
924 (if (not (equal (car op) "2x"))
925 (math-read-token))
926 (and (memq (nth 1 op) '(sdev mod))
5eb3eeda 927 (require 'calc-ext))
136211a9
EZ
928 (setq x (cond ((consp (nth 1 op))
929 (funcall (car (nth 1 op)) x op))
930 ((eq (nth 3 op) -1)
931 (if (eq (nth 1 op) 'ident)
932 x
933 (if (eq (nth 1 op) 'closing)
934 (if (eq (nth 2 op) exp-prec)
935 (progn
936 (setq exp-prec 1000)
937 x)
938 (throw 'syntax "Mismatched delimiters"))
939 (list (nth 1 op) x))))
940 ((and (not first)
941 (memq (nth 1 op) math-alg-inequalities)
942 (memq (car-safe x) math-alg-inequalities))
5eb3eeda 943 (require 'calc-ext)
136211a9
EZ
944 (math-composite-inequalities x op))
945 (t (list (nth 1 op)
946 x
947 (math-read-expr-level (nth 3 op) exp-term))))
948 first nil))
07ff2bc8 949 x))
136211a9 950
35cdbd30
JB
951;; calc-arg-values is defined in calc-ext.el, but is used here.
952(defvar calc-arg-values)
953
136211a9
EZ
954(defun calc-check-user-syntax (&optional x prec)
955 (let ((p calc-user-parse-table)
956 (matches nil)
957 match rule)
958 (while (and p
959 (or (not (progn
960 (setq rule (car (car p)))
961 (if x
962 (and (integerp (car rule))
963 (>= (car rule) prec)
abd880c3 964 (equal math-expr-data
136211a9 965 (car (setq rule (cdr rule)))))
abd880c3 966 (equal math-expr-data (car rule)))))
3cedbf72
JB
967 (let ((save-exp-pos math-exp-pos)
968 (save-exp-old-pos math-exp-old-pos)
969 (save-exp-token math-exp-token)
abd880c3 970 (save-exp-data math-expr-data))
136211a9
EZ
971 (or (not (listp
972 (setq matches (calc-match-user-syntax rule))))
973 (let ((args (progn
5eb3eeda 974 (require 'calc-ext)
136211a9
EZ
975 calc-arg-values))
976 (conds nil)
977 temp)
978 (if x
979 (setq matches (cons x matches)))
980 (setq match (cdr (car p)))
981 (while (and (eq (car-safe match)
982 'calcFunc-condition)
983 (= (length match) 3))
984 (setq conds (append (math-flatten-lands
985 (nth 2 match))
986 conds)
987 match (nth 1 match)))
988 (while (and conds match)
5eb3eeda 989 (require 'calc-ext)
136211a9
EZ
990 (cond ((eq (car-safe (car conds))
991 'calcFunc-let)
992 (setq temp (car conds))
993 (or (= (length temp) 3)
994 (and (= (length temp) 2)
995 (eq (car-safe (nth 1 temp))
996 'calcFunc-assign)
997 (= (length (nth 1 temp)) 3)
998 (setq temp (nth 1 temp)))
999 (setq match nil))
1000 (setq matches (cons
1001 (math-normalize
1002 (math-multi-subst
1003 (nth 2 temp)
1004 args matches))
1005 matches)
1006 args (cons (nth 1 temp)
1007 args)))
1008 ((and (eq (car-safe (car conds))
1009 'calcFunc-matches)
1010 (= (length (car conds)) 3))
1011 (setq temp (calcFunc-vmatches
1012 (math-multi-subst
1013 (nth 1 (car conds))
1014 args matches)
1015 (nth 2 (car conds))))
1016 (if (eq temp 0)
1017 (setq match nil)
1018 (while (setq temp (cdr temp))
1019 (setq matches (cons (nth 2 (car temp))
1020 matches)
1021 args (cons (nth 1 (car temp))
1022 args)))))
1023 (t
1024 (or (math-is-true (math-simplify
1025 (math-multi-subst
1026 (car conds)
1027 args matches)))
1028 (setq match nil))))
1029 (setq conds (cdr conds)))
1030 (if match
1031 (not (setq match (math-multi-subst
1032 match args matches)))
3cedbf72
JB
1033 (setq math-exp-old-pos save-exp-old-pos
1034 math-exp-token save-exp-token
abd880c3 1035 math-expr-data save-exp-data
3cedbf72 1036 math-exp-pos save-exp-pos)))))))
136211a9 1037 (setq p (cdr p)))
07ff2bc8 1038 (and p match)))
136211a9
EZ
1039
1040(defun calc-match-user-syntax (p &optional term)
1041 (let ((matches nil)
3cedbf72
JB
1042 (save-exp-pos math-exp-pos)
1043 (save-exp-old-pos math-exp-old-pos)
1044 (save-exp-token math-exp-token)
1045 (save-exp-data math-expr-data)
1046 m)
136211a9
EZ
1047 (while (and p
1048 (cond ((stringp (car p))
abd880c3 1049 (and (equal math-expr-data (car p))
136211a9
EZ
1050 (progn
1051 (math-read-token)
1052 t)))
1053 ((integerp (car p))
1054 (and (setq m (catch 'syntax
1055 (math-read-expr-level
1056 (car p)
1057 (if (cdr p)
1058 (if (consp (nth 1 p))
1059 (car (nth 1 (nth 1 p)))
1060 (nth 1 p))
1061 term))))
1062 (not (stringp m))
1063 (setq matches (nconc matches (list m)))))
1064 ((eq (car (car p)) '\?)
1065 (setq m (calc-match-user-syntax (nth 1 (car p))))
1066 (or (nth 2 (car p))
1067 (setq matches
1068 (nconc matches
1069 (list
1070 (cons 'vec (and (listp m) m))))))
1071 (or (listp m) (not (nth 2 (car p)))
1072 (not (eq (aref (car (nth 2 (car p))) 0) ?\$))
3cedbf72 1073 (eq math-exp-token 'end)))
136211a9
EZ
1074 (t
1075 (setq m (calc-match-user-syntax (nth 1 (car p))
1076 (car (nth 2 (car p)))))
1077 (if (listp m)
1078 (let ((vec (cons 'vec m))
1079 opos mm)
1080 (while (and (listp
3cedbf72 1081 (setq opos math-exp-pos
136211a9
EZ
1082 mm (calc-match-user-syntax
1083 (or (nth 2 (car p))
1084 (nth 1 (car p)))
1085 (car (nth 2 (car p))))))
3cedbf72 1086 (> math-exp-pos opos))
136211a9
EZ
1087 (setq vec (nconc vec mm)))
1088 (setq matches (nconc matches (list vec))))
1089 (and (eq (car (car p)) '*)
1090 (setq matches (nconc matches (list '(vec)))))))))
1091 (setq p (cdr p)))
1092 (if p
3cedbf72
JB
1093 (setq math-exp-pos save-exp-pos
1094 math-exp-old-pos save-exp-old-pos
1095 math-exp-token save-exp-token
abd880c3 1096 math-expr-data save-exp-data
136211a9 1097 matches "Failed"))
07ff2bc8 1098 matches))
136211a9 1099
136211a9
EZ
1100(defun math-remove-dashes (x)
1101 (if (string-match "\\`\\(.*\\)-\\(.*\\)\\'" x)
1102 (math-remove-dashes
1103 (concat (math-match-substring x 1) "#" (math-match-substring x 2)))
07ff2bc8 1104 x))
136211a9
EZ
1105
1106(defun math-restore-dashes (x)
1107 (if (string-match "\\`\\(.*\\)[#_]\\(.*\\)\\'" x)
1108 (math-restore-dashes
1109 (concat (math-match-substring x 1) "-" (math-match-substring x 2)))
07ff2bc8 1110 x))
136211a9
EZ
1111
1112(defun math-read-if (cond op)
1113 (let ((then (math-read-expr-level 0)))
abd880c3 1114 (or (equal math-expr-data ":")
136211a9
EZ
1115 (throw 'syntax "Expected ':'"))
1116 (math-read-token)
07ff2bc8 1117 (list 'calcFunc-if cond then (math-read-expr-level (nth 3 op)))))
136211a9
EZ
1118
1119(defun math-factor-after ()
3cedbf72
JB
1120 (let ((math-exp-pos math-exp-pos)
1121 math-exp-old-pos math-exp-token math-expr-data)
136211a9 1122 (math-read-token)
3cedbf72 1123 (or (memq math-exp-token '(number symbol dollar hash string))
abd880c3
JB
1124 (and (assoc math-expr-data '(("-") ("+") ("!") ("|") ("/")))
1125 (assoc (concat "u" math-expr-data) math-expr-opers))
1126 (eq (nth 2 (assoc math-expr-data math-expr-opers)) -1)
1127 (assoc math-expr-data '(("(") ("[") ("{"))))))
136211a9
EZ
1128
1129(defun math-read-factor ()
1130 (let (op)
3cedbf72 1131 (cond ((eq math-exp-token 'number)
abd880c3 1132 (let ((num (math-read-number math-expr-data)))
136211a9
EZ
1133 (if (not num)
1134 (progn
3cedbf72 1135 (setq math-exp-old-pos math-exp-pos)
136211a9
EZ
1136 (throw 'syntax "Bad format")))
1137 (math-read-token)
1138 (if (and math-read-expr-quotes
1139 (consp num))
1140 (list 'quote num)
1141 num)))
1142 ((and calc-user-parse-table
1143 (setq op (calc-check-user-syntax)))
1144 op)
abd880c3
JB
1145 ((or (equal math-expr-data "-")
1146 (equal math-expr-data "+")
1147 (equal math-expr-data "!")
1148 (equal math-expr-data "|")
1149 (equal math-expr-data "/"))
1150 (setq math-expr-data (concat "u" math-expr-data))
136211a9 1151 (math-read-factor))
abd880c3 1152 ((and (setq op (assoc math-expr-data math-expr-opers))
136211a9
EZ
1153 (eq (nth 2 op) -1))
1154 (if (consp (nth 1 op))
1155 (funcall (car (nth 1 op)) op)
1156 (math-read-token)
1157 (let ((val (math-read-expr-level (nth 3 op))))
1158 (cond ((eq (nth 1 op) 'ident)
1159 val)
1160 ((and (Math-numberp val)
1161 (equal (car op) "u-"))
1162 (math-neg val))
1163 (t (list (nth 1 op) val))))))
3cedbf72 1164 ((eq math-exp-token 'symbol)
abd880c3 1165 (let ((sym (intern math-expr-data)))
136211a9 1166 (math-read-token)
abd880c3 1167 (if (equal math-expr-data calc-function-open)
136211a9
EZ
1168 (let ((f (assq sym math-expr-function-mapping)))
1169 (math-read-token)
1170 (if (consp (cdr f))
1171 (funcall (car (cdr f)) f sym)
abd880c3 1172 (let ((args (if (or (equal math-expr-data calc-function-close)
3cedbf72 1173 (eq math-exp-token 'end))
136211a9
EZ
1174 nil
1175 (math-read-expr-list))))
abd880c3 1176 (if (not (or (equal math-expr-data calc-function-close)
3cedbf72 1177 (eq math-exp-token 'end)))
136211a9
EZ
1178 (throw 'syntax "Expected `)'"))
1179 (math-read-token)
1180 (if (and (eq calc-language 'fortran) args
5eb3eeda 1181 (require 'calc-ext)
136211a9
EZ
1182 (let ((calc-matrix-mode 'scalar))
1183 (math-known-matrixp
1184 (list 'var sym
1185 (intern
1186 (concat "var-"
1187 (symbol-name sym)))))))
1188 (math-parse-fortran-subscr sym args)
1189 (if f
1190 (setq sym (cdr f))
1191 (and (= (aref (symbol-name sym) 0) ?\\)
1192 (< (prefix-numeric-value calc-language-option)
1193 0)
1194 (setq sym (intern (substring (symbol-name sym)
1195 1))))
1196 (or (string-match "-" (symbol-name sym))
1197 (setq sym (intern
1198 (concat "calcFunc-"
1199 (symbol-name sym))))))
1200 (cons sym args)))))
1201 (if math-read-expr-quotes
1202 sym
1203 (let ((val (list 'var
1204 (intern (math-remove-dashes
1205 (symbol-name sym)))
1206 (if (string-match "-" (symbol-name sym))
1207 sym
1208 (intern (concat "var-"
1209 (symbol-name sym)))))))
1210 (let ((v (assq (nth 1 val) math-expr-variable-mapping)))
1211 (and v (setq val (if (consp (cdr v))
1212 (funcall (car (cdr v)) v val)
1213 (list 'var
1214 (intern
1215 (substring (symbol-name (cdr v))
1216 4))
1217 (cdr v))))))
1218 (while (and (memq calc-language '(c pascal maple))
abd880c3 1219 (equal math-expr-data "["))
136211a9
EZ
1220 (math-read-token)
1221 (setq val (append (list 'calcFunc-subscr val)
1222 (math-read-expr-list)))
abd880c3 1223 (if (equal math-expr-data "]")
136211a9
EZ
1224 (math-read-token)
1225 (throw 'syntax "Expected ']'")))
1226 val)))))
3cedbf72 1227 ((eq math-exp-token 'dollar)
abd880c3 1228 (let ((abs (if (> math-expr-data 0) math-expr-data (- math-expr-data))))
136211a9 1229 (if (>= (length calc-dollar-values) abs)
abd880c3 1230 (let ((num math-expr-data))
136211a9
EZ
1231 (math-read-token)
1232 (setq calc-dollar-used (max calc-dollar-used num))
1233 (math-check-complete (nth (1- abs) calc-dollar-values)))
1234 (throw 'syntax (if calc-dollar-values
1235 "Too many $'s"
1236 "$'s not allowed in this context")))))
3cedbf72 1237 ((eq math-exp-token 'hash)
136211a9
EZ
1238 (or calc-hashes-used
1239 (throw 'syntax "#'s not allowed in this context"))
5eb3eeda 1240 (require 'calc-ext)
abd880c3
JB
1241 (if (<= math-expr-data (length calc-arg-values))
1242 (let ((num math-expr-data))
136211a9
EZ
1243 (math-read-token)
1244 (setq calc-hashes-used (max calc-hashes-used num))
1245 (nth (1- num) calc-arg-values))
1246 (throw 'syntax "Too many # arguments")))
abd880c3 1247 ((equal math-expr-data "(")
3cedbf72 1248 (let* ((exp (let ((math-exp-keep-spaces nil))
136211a9 1249 (math-read-token)
abd880c3
JB
1250 (if (or (equal math-expr-data "\\dots")
1251 (equal math-expr-data "\\ldots"))
136211a9
EZ
1252 '(neg (var inf var-inf))
1253 (math-read-expr-level 0)))))
3cedbf72 1254 (let ((math-exp-keep-spaces nil))
136211a9 1255 (cond
abd880c3 1256 ((equal math-expr-data ",")
136211a9
EZ
1257 (progn
1258 (math-read-token)
1259 (let ((exp2 (math-read-expr-level 0)))
1260 (setq exp
1261 (if (and exp2 (Math-realp exp) (Math-realp exp2))
1262 (math-normalize (list 'cplx exp exp2))
1263 (list '+ exp (list '* exp2 '(var i var-i))))))))
abd880c3 1264 ((equal math-expr-data ";")
136211a9
EZ
1265 (progn
1266 (math-read-token)
1267 (let ((exp2 (math-read-expr-level 0)))
1268 (setq exp (if (and exp2 (Math-realp exp)
1269 (Math-anglep exp2))
1270 (math-normalize (list 'polar exp exp2))
5eb3eeda 1271 (require 'calc-ext)
136211a9
EZ
1272 (list '* exp
1273 (list 'calcFunc-exp
1274 (list '*
1275 (math-to-radians-2 exp2)
1276 '(var i var-i)))))))))
abd880c3
JB
1277 ((or (equal math-expr-data "\\dots")
1278 (equal math-expr-data "\\ldots"))
136211a9
EZ
1279 (progn
1280 (math-read-token)
abd880c3
JB
1281 (let ((exp2 (if (or (equal math-expr-data ")")
1282 (equal math-expr-data "]")
3cedbf72 1283 (eq math-exp-token 'end))
136211a9
EZ
1284 '(var inf var-inf)
1285 (math-read-expr-level 0))))
1286 (setq exp
1287 (list 'intv
abd880c3 1288 (if (equal math-expr-data ")") 0 1)
136211a9
EZ
1289 exp
1290 exp2)))))))
abd880c3
JB
1291 (if (not (or (equal math-expr-data ")")
1292 (and (equal math-expr-data "]") (eq (car-safe exp) 'intv))
3cedbf72 1293 (eq math-exp-token 'end)))
136211a9
EZ
1294 (throw 'syntax "Expected `)'"))
1295 (math-read-token)
1296 exp))
3cedbf72 1297 ((eq math-exp-token 'string)
5eb3eeda 1298 (require 'calc-ext)
136211a9 1299 (math-read-string))
abd880c3 1300 ((equal math-expr-data "[")
5eb3eeda 1301 (require 'calc-ext)
136211a9 1302 (math-read-brackets t "]"))
abd880c3 1303 ((equal math-expr-data "{")
5eb3eeda 1304 (require 'calc-ext)
136211a9 1305 (math-read-brackets nil "}"))
abd880c3 1306 ((equal math-expr-data "<")
5eb3eeda 1307 (require 'calc-ext)
136211a9 1308 (math-read-angle-brackets))
07ff2bc8 1309 (t (throw 'syntax "Expected a number")))))
136211a9 1310
47233535
JB
1311(provide 'calc-aent)
1312
ab5796a9 1313;;; arch-tag: 5599e45d-e51e-44bb-9a20-9f4ed8c96c32
07ff2bc8 1314;;; calc-aent.el ends here