Commit | Line | Data |
---|---|---|
3132f345 CW |
1 | ;;; calc-forms.el --- data format conversion functions for Calc |
2 | ||
ab422c4d | 3 | ;; Copyright (C) 1990-1993, 2001-2013 Free Software Foundation, Inc. |
3132f345 CW |
4 | |
5 | ;; Author: David Gillespie <daveg@synaptics.com> | |
e8fff8ed | 6 | ;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com> |
136211a9 EZ |
7 | |
8 | ;; This file is part of GNU Emacs. | |
9 | ||
662c9c64 | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
7c671b23 | 11 | ;; it under the terms of the GNU General Public License as published by |
662c9c64 GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
7c671b23 | 14 | |
136211a9 | 15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
7c671b23 GM |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
662c9c64 | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
136211a9 | 22 | |
3132f345 | 23 | ;;; Commentary: |
136211a9 | 24 | |
3132f345 | 25 | ;;; Code: |
136211a9 EZ |
26 | |
27 | ;; This file is autoloaded from calc-ext.el. | |
136211a9 | 28 | |
76216e5a | 29 | (require 'calc-ext) |
136211a9 EZ |
30 | (require 'calc-macs) |
31 | ||
1976223f JB |
32 | ;; Declare functions which are defined elsewhere. |
33 | (declare-function calendar-current-time-zone "cal-dst" ()) | |
34 | (declare-function calendar-absolute-from-gregorian "calendar" (date)) | |
35 | (declare-function dst-in-effect "cal-dst" (date)) | |
36 | ||
37 | ||
136211a9 EZ |
38 | (defun calc-time () |
39 | (interactive) | |
40 | (calc-wrapper | |
41 | (let ((time (current-time-string))) | |
42 | (calc-enter-result 0 "time" | |
43 | (list 'mod | |
44 | (list 'hms | |
5574e209 JB |
45 | (string-to-number (substring time 11 13)) |
46 | (string-to-number (substring time 14 16)) | |
47 | (string-to-number (substring time 17 19))) | |
bf77c646 | 48 | (list 'hms 24 0 0)))))) |
136211a9 EZ |
49 | |
50 | (defun calc-to-hms (arg) | |
51 | (interactive "P") | |
52 | (calc-wrapper | |
53 | (if (calc-is-inverse) | |
54 | (if (eq calc-angle-mode 'rad) | |
55 | (calc-unary-op ">rad" 'calcFunc-rad arg) | |
56 | (calc-unary-op ">deg" 'calcFunc-deg arg)) | |
bf77c646 | 57 | (calc-unary-op ">hms" 'calcFunc-hms arg)))) |
136211a9 EZ |
58 | |
59 | (defun calc-from-hms (arg) | |
60 | (interactive "P") | |
61 | (calc-invert-func) | |
bf77c646 | 62 | (calc-to-hms arg)) |
136211a9 EZ |
63 | |
64 | ||
65 | (defun calc-hms-notation (fmt) | |
66 | (interactive "sHours-minutes-seconds format (hms, @ ' \", etc.): ") | |
67 | (calc-wrapper | |
68 | (if (string-match "\\`\\([^,; ]+\\)\\([,; ]*\\)\\([^,; ]\\)\\([,; ]*\\)\\([^,; ]\\)\\'" fmt) | |
69 | (progn | |
70 | (calc-change-mode 'calc-hms-format | |
71 | (concat "%s" (math-match-substring fmt 1) | |
72 | (math-match-substring fmt 2) | |
73 | "%s" (math-match-substring fmt 3) | |
74 | (math-match-substring fmt 4) | |
75 | "%s" (math-match-substring fmt 5)) | |
76 | t) | |
77 | (setq-default calc-hms-format calc-hms-format)) ; for minibuffer | |
3132f345 | 78 | (error "Bad hours-minutes-seconds format")))) |
136211a9 EZ |
79 | |
80 | (defun calc-date-notation (fmt arg) | |
81 | (interactive "sDate format (e.g., M/D/YY h:mm:ss): \nP") | |
82 | (calc-wrapper | |
6292c599 | 83 | (if (string-match-p "\\`\\s-*\\'" fmt) |
136211a9 | 84 | (setq fmt "1")) |
8c21bef6 | 85 | (if (string-match "\\` *\\([0-9]\\|10\\|11\\) *\\'" fmt) |
5574e209 | 86 | (setq fmt (nth (string-to-number fmt) calc-standard-date-formats))) |
136211a9 EZ |
87 | (or (string-match "[a-zA-Z]" fmt) |
88 | (error "Bad date format specifier")) | |
89 | (and arg | |
90 | (>= (setq arg (prefix-numeric-value arg)) 0) | |
ff3f6c26 | 91 | (<= arg 11) |
136211a9 EZ |
92 | (setq calc-standard-date-formats |
93 | (copy-sequence calc-standard-date-formats)) | |
94 | (setcar (nthcdr arg calc-standard-date-formats) fmt)) | |
95 | (let ((case-fold-search nil)) | |
96 | (and (not (string-match "<.*>" fmt)) | |
e7c8fcc4 | 97 | ;; Find time part to put in <...> |
682ceaf8 | 98 | (string-match "\\`[^hHspPT]*\\([^ac-gi-lnoqrt-zAC-GI-OQRU-Z]*\\(bs\\|bm\\|bh\\|BS\\|BH\\|[hHmpPsST]\\)+[^ac-gi-lnoqrt-zAC-GI-OQRU-Z]*\\)[^hHspPT]*\\'" fmt) |
136211a9 EZ |
99 | (string-match (concat "[^ac-gi-lnoqrt-zAC-GI-OQRT-Z]*" |
100 | (regexp-quote (math-match-substring fmt 1)) | |
101 | "[^ac-gi-lnoqrt-zAC-GI-OQRT-Z]*") fmt) | |
102 | (setq fmt (concat (substring fmt 0 (match-beginning 0)) | |
103 | "<" | |
104 | (substring fmt (match-beginning 0) (match-end 0)) | |
105 | ">" | |
106 | (substring fmt (match-end 0)))))) | |
107 | (let ((lfmt nil) | |
108 | (fullfmt nil) | |
109 | (time nil) | |
110 | pos pos2 sym temp) | |
111 | (let ((case-fold-search nil)) | |
112 | (and (setq temp (string-match ":[BS]S" fmt)) | |
113 | (aset fmt temp ?C))) | |
114 | (while (setq pos (string-match "[<>a-zA-Z]" fmt)) | |
115 | (if (> pos 0) | |
116 | (setq lfmt (cons (substring fmt 0 pos) lfmt))) | |
117 | (setq pos2 (1+ pos)) | |
118 | (cond ((= (aref fmt pos) ?\<) | |
119 | (and time (error "Nested <'s not allowed")) | |
120 | (and lfmt (setq fullfmt (nconc lfmt fullfmt) | |
121 | lfmt nil)) | |
122 | (setq time t)) | |
123 | ((= (aref fmt pos) ?\>) | |
124 | (or time (error "Misplaced > in format")) | |
125 | (and lfmt (setq fullfmt (cons (nreverse lfmt) fullfmt) | |
126 | lfmt nil)) | |
127 | (setq time nil)) | |
128 | (t | |
682ceaf8 | 129 | (if (string-match "\\`[^a-zA-Z]*[bBZI][a-zA-Z]" fmt) |
136211a9 EZ |
130 | (setq pos2 (1+ pos2))) |
131 | (while (and (< pos2 (length fmt)) | |
132 | (= (upcase (aref fmt pos2)) | |
133 | (upcase (aref fmt (1- pos2))))) | |
134 | (setq pos2 (1+ pos2))) | |
135 | (setq sym (intern (substring fmt pos pos2))) | |
136 | (or (memq sym '(Y YY BY YYY YYYY | |
682ceaf8 | 137 | ZYYY IYYY Iww w |
136211a9 EZ |
138 | aa AA aaa AAA aaaa AAAA |
139 | bb BB bbb BBB bbbb BBBB | |
140 | M MM BM mmm Mmm Mmmm MMM MMMM | |
141 | D DD BD d ddd bdd | |
142 | W www Www Wwww WWW WWWW | |
143 | h hh bh H HH BH | |
144 | p P pp PP pppp PPPP | |
e7c8fcc4 | 145 | m mm bm s ss bs SS BS C |
682ceaf8 | 146 | N n J j U b T)) |
136211a9 EZ |
147 | (and (eq sym 'X) (not lfmt) (not fullfmt)) |
148 | (error "Bad format code: %s" sym)) | |
149 | (and (memq sym '(bb BB bbb BBB bbbb BBBB)) | |
150 | (setq lfmt (cons 'b lfmt))) | |
151 | (setq lfmt (cons sym lfmt)))) | |
152 | (setq fmt (substring fmt pos2))) | |
153 | (or (equal fmt "") | |
154 | (setq lfmt (cons fmt lfmt))) | |
155 | (and lfmt (if time | |
156 | (setq fullfmt (cons (nreverse lfmt) fullfmt)) | |
157 | (setq fullfmt (nconc lfmt fullfmt)))) | |
bf77c646 | 158 | (calc-change-mode 'calc-date-format (nreverse fullfmt) t)))) |
136211a9 EZ |
159 | |
160 | ||
161 | (defun calc-hms-mode () | |
162 | (interactive) | |
163 | (calc-wrapper | |
164 | (calc-change-mode 'calc-angle-mode 'hms) | |
3132f345 | 165 | (message "Angles measured in degrees-minutes-seconds"))) |
136211a9 EZ |
166 | |
167 | ||
168 | (defun calc-now (arg) | |
169 | (interactive "P") | |
bf77c646 | 170 | (calc-date-zero-args "now" 'calcFunc-now arg)) |
136211a9 EZ |
171 | |
172 | (defun calc-date-part (arg) | |
173 | (interactive "NPart code (1-9 = Y,M,D,H,M,S,Wd,Yd,Hms): ") | |
174 | (if (or (< arg 1) (> arg 9)) | |
175 | (error "Part code out of range")) | |
176 | (calc-wrapper | |
177 | (calc-enter-result 1 | |
178 | (nth arg '(nil "year" "mnth" "day" "hour" "minu" | |
179 | "sec" "wday" "yday" "hmst")) | |
180 | (list (nth arg '(nil calcFunc-year calcFunc-month | |
181 | calcFunc-day calcFunc-hour | |
182 | calcFunc-minute calcFunc-second | |
183 | calcFunc-weekday calcFunc-yearday | |
184 | calcFunc-time)) | |
bf77c646 | 185 | (calc-top-n 1))))) |
136211a9 EZ |
186 | |
187 | (defun calc-date (arg) | |
188 | (interactive "p") | |
189 | (if (or (< arg 1) (> arg 6)) | |
190 | (error "Between one and six arguments are allowed")) | |
191 | (calc-wrapper | |
bf77c646 | 192 | (calc-enter-result arg "date" (cons 'calcFunc-date (calc-top-list-n arg))))) |
136211a9 EZ |
193 | |
194 | (defun calc-julian (arg) | |
195 | (interactive "P") | |
bf77c646 | 196 | (calc-date-one-arg "juln" 'calcFunc-julian arg)) |
136211a9 EZ |
197 | |
198 | (defun calc-unix-time (arg) | |
199 | (interactive "P") | |
bf77c646 | 200 | (calc-date-one-arg "unix" 'calcFunc-unixtime arg)) |
136211a9 EZ |
201 | |
202 | (defun calc-time-zone (arg) | |
203 | (interactive "P") | |
bf77c646 | 204 | (calc-date-zero-args "zone" 'calcFunc-tzone arg)) |
136211a9 EZ |
205 | |
206 | (defun calc-convert-time-zones (old &optional new) | |
207 | (interactive "sFrom time zone: ") | |
208 | (calc-wrapper | |
209 | (if (equal old "$") | |
210 | (calc-enter-result 3 "tzcv" (cons 'calcFunc-tzconv (calc-top-list-n 3))) | |
211 | (if (equal old "") (setq old "local")) | |
212 | (or new | |
213 | (setq new (read-string (concat "From time zone: " old | |
214 | ", to zone: ")))) | |
215 | (if (stringp old) (setq old (math-read-expr old))) | |
216 | (if (eq (car-safe old) 'error) | |
1e9a52a5 | 217 | (error "Error in expression: %S" (nth 1 old))) |
136211a9 EZ |
218 | (if (equal new "") (setq new "local")) |
219 | (if (stringp new) (setq new (math-read-expr new))) | |
220 | (if (eq (car-safe new) 'error) | |
1e9a52a5 | 221 | (error "Error in expression: %S" (nth 1 new))) |
136211a9 | 222 | (calc-enter-result 1 "tzcv" (list 'calcFunc-tzconv |
bf77c646 | 223 | (calc-top-n 1) old new))))) |
136211a9 EZ |
224 | |
225 | (defun calc-new-week (arg) | |
226 | (interactive "P") | |
bf77c646 | 227 | (calc-date-one-arg "nwwk" 'calcFunc-newweek arg)) |
136211a9 EZ |
228 | |
229 | (defun calc-new-month (arg) | |
230 | (interactive "P") | |
bf77c646 | 231 | (calc-date-one-arg "nwmn" 'calcFunc-newmonth arg)) |
136211a9 EZ |
232 | |
233 | (defun calc-new-year (arg) | |
234 | (interactive "P") | |
bf77c646 | 235 | (calc-date-one-arg "nwyr" 'calcFunc-newyear arg)) |
136211a9 EZ |
236 | |
237 | (defun calc-inc-month (arg) | |
238 | (interactive "p") | |
bf77c646 | 239 | (calc-date-one-arg "incm" 'calcFunc-incmonth arg)) |
136211a9 EZ |
240 | |
241 | (defun calc-business-days-plus (arg) | |
242 | (interactive "P") | |
243 | (calc-wrapper | |
bf77c646 | 244 | (calc-binary-op "bus+" 'calcFunc-badd arg))) |
136211a9 EZ |
245 | |
246 | (defun calc-business-days-minus (arg) | |
247 | (interactive "P") | |
248 | (calc-wrapper | |
bf77c646 | 249 | (calc-binary-op "bus-" 'calcFunc-bsub arg))) |
136211a9 EZ |
250 | |
251 | (defun calc-date-zero-args (prefix func arg) | |
252 | (calc-wrapper | |
253 | (if (consp arg) | |
254 | (calc-enter-result 1 prefix (list func (calc-top-n 1))) | |
255 | (calc-enter-result 0 prefix (if arg | |
256 | (list func (prefix-numeric-value arg)) | |
bf77c646 | 257 | (list func)))))) |
136211a9 EZ |
258 | |
259 | (defun calc-date-one-arg (prefix func arg) | |
260 | (calc-wrapper | |
261 | (if (consp arg) | |
262 | (calc-enter-result 2 prefix (cons func (calc-top-list-n 2))) | |
263 | (calc-enter-result 1 prefix (if arg | |
264 | (list func (calc-top-n 1) | |
265 | (prefix-numeric-value arg)) | |
bf77c646 | 266 | (list func (calc-top-n 1))))))) |
136211a9 EZ |
267 | |
268 | ||
269 | ;;;; Hours-minutes-seconds forms. | |
270 | ||
271 | (defun math-normalize-hms (a) | |
272 | (let ((h (math-normalize (nth 1 a))) | |
273 | (m (math-normalize (nth 2 a))) | |
274 | (s (let ((calc-internal-prec (max (- calc-internal-prec 4) 3))) | |
275 | (math-normalize (nth 3 a))))) | |
276 | (if (math-negp h) | |
277 | (progn | |
278 | (if (math-posp s) | |
279 | (setq s (math-add s -60) | |
280 | m (math-add m 1))) | |
281 | (if (math-posp m) | |
282 | (setq m (math-add m -60) | |
283 | h (math-add h 1))) | |
284 | (if (not (Math-lessp -60 s)) | |
285 | (setq s (math-add s 60) | |
286 | m (math-add m -1))) | |
287 | (if (not (Math-lessp -60 m)) | |
288 | (setq m (math-add m 60) | |
289 | h (math-add h -1)))) | |
290 | (if (math-negp s) | |
291 | (setq s (math-add s 60) | |
292 | m (math-add m -1))) | |
293 | (if (math-negp m) | |
294 | (setq m (math-add m 60) | |
295 | h (math-add h -1))) | |
296 | (if (not (Math-lessp s 60)) | |
297 | (setq s (math-add s -60) | |
298 | m (math-add m 1))) | |
299 | (if (not (Math-lessp m 60)) | |
300 | (setq m (math-add m -60) | |
301 | h (math-add h 1)))) | |
302 | (if (and (eq (car-safe s) 'float) | |
303 | (<= (+ (math-numdigs (nth 1 s)) (nth 2 s)) | |
304 | (- 2 calc-internal-prec))) | |
305 | (setq s 0)) | |
bf77c646 | 306 | (list 'hms h m s))) |
136211a9 EZ |
307 | |
308 | ;;; Convert A from ANG or current angular mode to HMS format. | |
309 | (defun math-to-hms (a &optional ang) ; [X R] [Public] | |
310 | (cond ((eq (car-safe a) 'hms) a) | |
311 | ((eq (car-safe a) 'sdev) | |
312 | (math-make-sdev (math-to-hms (nth 1 a)) | |
313 | (math-to-hms (nth 2 a)))) | |
314 | ((not (Math-numberp a)) | |
315 | (list 'calcFunc-hms a)) | |
316 | ((math-negp a) | |
317 | (math-neg (math-to-hms (math-neg a) ang))) | |
318 | ((eq (or ang calc-angle-mode) 'rad) | |
319 | (math-to-hms (math-div a (math-pi-over-180)) 'deg)) | |
320 | ((memq (car-safe a) '(cplx polar)) a) | |
321 | (t | |
322 | ;(setq a (let ((calc-internal-prec (max (1- calc-internal-prec) 3))) | |
323 | ; (math-normalize a))) | |
324 | (math-normalize | |
325 | (let* ((b (math-mul a 3600)) | |
326 | (hm (math-trunc (math-div b 60))) | |
327 | (hmd (math-idivmod hm 60))) | |
328 | (list 'hms | |
329 | (car hmd) | |
330 | (cdr hmd) | |
bf77c646 | 331 | (math-sub b (math-mul hm 60)))))))) |
136211a9 EZ |
332 | (defun calcFunc-hms (h &optional m s) |
333 | (or (Math-realp h) (math-reject-arg h 'realp)) | |
334 | (or m (setq m 0)) | |
335 | (or (Math-realp m) (math-reject-arg m 'realp)) | |
336 | (or s (setq s 0)) | |
337 | (or (Math-realp s) (math-reject-arg s 'realp)) | |
338 | (if (and (not (Math-lessp m 0)) (Math-lessp m 60) | |
339 | (not (Math-lessp s 0)) (Math-lessp s 60)) | |
340 | (math-add (math-to-hms h) | |
341 | (list 'hms 0 m s)) | |
342 | (math-to-hms (math-add h | |
343 | (math-add (math-div (or m 0) 60) | |
344 | (math-div (or s 0) 3600))) | |
bf77c646 | 345 | 'deg))) |
136211a9 EZ |
346 | |
347 | ;;; Convert A from HMS format to ANG or current angular mode. | |
348 | (defun math-from-hms (a &optional ang) ; [R X] [Public] | |
349 | (cond ((not (eq (car-safe a) 'hms)) | |
350 | (if (Math-numberp a) | |
351 | a | |
352 | (if (eq (car-safe a) 'sdev) | |
353 | (math-make-sdev (math-from-hms (nth 1 a) ang) | |
354 | (math-from-hms (nth 2 a) ang)) | |
355 | (if (eq (or ang calc-angle-mode) 'rad) | |
356 | (list 'calcFunc-rad a) | |
357 | (list 'calcFunc-deg a))))) | |
358 | ((math-negp a) | |
359 | (math-neg (math-from-hms (math-neg a) ang))) | |
360 | ((eq (or ang calc-angle-mode) 'rad) | |
361 | (math-mul (math-from-hms a 'deg) (math-pi-over-180))) | |
362 | (t | |
363 | (math-add (math-div (math-add (math-div (nth 3 a) | |
364 | '(float 6 1)) | |
365 | (nth 2 a)) | |
366 | 60) | |
bf77c646 | 367 | (nth 1 a))))) |
136211a9 EZ |
368 | |
369 | ;;;; Date forms. | |
370 | ||
371 | ||
372 | ;;; Some of these functions are adapted from Edward Reingold's "calendar.el". | |
373 | ;;; These versions are rewritten to use arbitrary-size integers. | |
136211a9 EZ |
374 | |
375 | ;;; A numerical date is the number of days since midnight on | |
e8909bdc JB |
376 | ;;; the morning of December 31, 1 B.C. (Gregorian) or January 2, 1 A.D. (Julian). |
377 | ;;; Emacs's calendar refers to such a date as an absolute date, some Calc function | |
378 | ;;; names also use that terminology. If the date is a non-integer, it represents | |
379 | ;;; a specific date and time. | |
136211a9 EZ |
380 | ;;; A "dt" is a list of the form, (year month day), corresponding to |
381 | ;;; an integer code, or (year month day hour minute second), corresponding | |
382 | ;;; to a non-integer code. | |
383 | ||
c9f618db JB |
384 | (defun math-date-to-gregorian-dt (date) |
385 | "Return the day (YEAR MONTH DAY) in the Gregorian calendar. | |
386 | DATE is the number of days since December 31, -1 in the Gregorian calendar." | |
387 | (let* ((month 1) | |
388 | day | |
389 | (year (math-quotient (math-add date (if (Math-lessp date 711859) | |
390 | 365 ; for speed, we take | |
391 | -108)) ; >1950 as a special case | |
392 | (if (math-negp date) 366 365))) | |
393 | ; this result may be an overestimate | |
394 | temp) | |
395 | (while (Math-lessp date (setq temp (math-absolute-from-gregorian-dt year 1 1))) | |
396 | (setq year (math-add year -1))) | |
397 | (if (eq year 0) (setq year -1)) | |
398 | (setq date (1+ (math-sub date temp))) | |
399 | (setq temp | |
400 | (if (math-leap-year-p year) | |
401 | [1 32 61 92 122 153 183 214 245 275 306 336 999] | |
402 | [1 32 60 91 121 152 182 213 244 274 305 335 999])) | |
403 | (while (>= date (aref temp month)) | |
404 | (setq month (1+ month))) | |
405 | (setq day (1+ (- date (aref temp (1- month))))) | |
406 | (list year month day))) | |
407 | ||
408 | (defun math-date-to-julian-dt (date) | |
409 | "Return the day (YEAR MONTH DAY) in the Julian calendar. | |
410 | DATE is the number of days since December 31, -1 in the Gregorian calendar." | |
411 | (let* ((month 1) | |
412 | day | |
413 | (year (math-quotient (math-add date (if (Math-lessp date 711859) | |
e8909bdc JB |
414 | 367 ; for speed, we take |
415 | -106)) ; >1950 as a special case | |
c9f618db JB |
416 | (if (math-negp date) 366 365))) |
417 | ; this result may be an overestimate | |
418 | temp) | |
419 | (while (Math-lessp date (setq temp (math-absolute-from-julian-dt year 1 1))) | |
420 | (setq year (math-add year -1))) | |
421 | (if (eq year 0) (setq year -1)) | |
422 | (setq date (1+ (math-sub date temp))) | |
423 | (setq temp | |
424 | (if (math-leap-year-p year t) | |
425 | [1 32 61 92 122 153 183 214 245 275 306 336 999] | |
426 | [1 32 60 91 121 152 182 213 244 274 305 335 999])) | |
427 | (while (>= date (aref temp month)) | |
428 | (setq month (1+ month))) | |
429 | (setq day (1+ (- date (aref temp (1- month))))) | |
430 | (list year month day))) | |
431 | ||
136211a9 | 432 | (defun math-date-to-dt (value) |
c9f618db JB |
433 | "Return the day and time of VALUE. |
434 | The integer part of VALUE is the number of days since Dec 31, -1 | |
435 | in the Gregorian calendar and the remaining part determines the time." | |
136211a9 EZ |
436 | (if (eq (car-safe value) 'date) |
437 | (setq value (nth 1 value))) | |
438 | (or (math-realp value) | |
439 | (math-reject-arg value 'datep)) | |
440 | (let* ((parts (math-date-parts value)) | |
441 | (date (car parts)) | |
442 | (time (nth 1 parts)) | |
c9f618db JB |
443 | (dt (if (and calc-gregorian-switch |
444 | (Math-lessp value | |
445 | (or | |
446 | (nth 3 calc-gregorian-switch) | |
447 | (apply 'math-absolute-from-gregorian-dt calc-gregorian-switch)) | |
448 | )) | |
eef97f35 JB |
449 | (math-date-to-julian-dt date) |
450 | (math-date-to-gregorian-dt date)))) | |
136211a9 | 451 | (if (math-integerp value) |
c9f618db JB |
452 | dt |
453 | (append dt | |
454 | (list | |
455 | (/ time 3600) | |
456 | (% (/ time 60) 60) | |
457 | (math-add (% time 60) (nth 2 parts))))))) | |
136211a9 | 458 | |
682ceaf8 JB |
459 | (defun math-date-to-iso-dt (date) |
460 | "Return the ISO8601 date (year week day) of DATE." | |
461 | (unless (Math-integerp date) | |
462 | (setq date (math-floor date))) | |
463 | (let* ((approx (nth 0 (math-date-to-gregorian-dt (math-sub date 3)))) | |
464 | (year (math-add approx | |
465 | (let ((y approx) | |
466 | (sum 0)) | |
467 | (while (>= (math-compare date | |
1bf3989c | 468 | (math-absolute-from-iso-dt (setq y (math-add y 1)) 1 1)) 0) |
682ceaf8 JB |
469 | (setq sum (+ sum 1))) |
470 | sum)))) | |
471 | (list | |
472 | year | |
473 | (math-add (car (math-idivmod | |
1bf3989c | 474 | (math-sub date (math-absolute-from-iso-dt year 1 1)) |
682ceaf8 JB |
475 | 7)) |
476 | 1) | |
77a74935 JB |
477 | (let ((day (calcFunc-mod date 7))) |
478 | (if (= day 0) 7 day))))) | |
682ceaf8 | 479 | |
136211a9 EZ |
480 | (defun math-dt-to-date (dt) |
481 | (or (integerp (nth 1 dt)) | |
482 | (math-reject-arg (nth 1 dt) 'fixnump)) | |
483 | (if (or (< (nth 1 dt) 1) (> (nth 1 dt) 12)) | |
484 | (math-reject-arg (nth 1 dt) "Month value is out of range")) | |
485 | (or (integerp (nth 2 dt)) | |
486 | (math-reject-arg (nth 2 dt) 'fixnump)) | |
487 | (if (or (< (nth 2 dt) 1) (> (nth 2 dt) 31)) | |
488 | (math-reject-arg (nth 2 dt) "Day value is out of range")) | |
c9f618db | 489 | (let ((date (math-absolute-from-dt (car dt) (nth 1 dt) (nth 2 dt)))) |
136211a9 EZ |
490 | (if (nth 3 dt) |
491 | (math-add (math-float date) | |
492 | (math-div (math-add (+ (* (nth 3 dt) 3600) | |
493 | (* (nth 4 dt) 60)) | |
494 | (nth 5 dt)) | |
495 | '(float 864 2))) | |
bf77c646 | 496 | date))) |
136211a9 | 497 | |
682ceaf8 JB |
498 | (defun math-iso-dt-to-date (dt) |
499 | (let ((date (math-absolute-from-iso-dt (car dt) (nth 1 dt) (nth 2 dt)))) | |
500 | (if (nth 3 dt) | |
501 | (math-add (math-float date) | |
502 | (math-div (math-add (+ (* (nth 3 dt) 3600) | |
503 | (* (nth 4 dt) 60)) | |
504 | (nth 5 dt)) | |
505 | '(float 864 2))) | |
506 | date))) | |
507 | ||
136211a9 EZ |
508 | (defun math-date-parts (value &optional offset) |
509 | (let* ((date (math-floor value)) | |
510 | (time (math-round (math-mul (math-sub value (or offset date)) 86400) | |
511 | (and (> calc-internal-prec 12) | |
512 | (- calc-internal-prec 12)))) | |
513 | (ftime (math-floor time))) | |
514 | (list date | |
515 | ftime | |
bf77c646 | 516 | (math-sub time ftime)))) |
136211a9 EZ |
517 | |
518 | ||
519 | (defun math-this-year () | |
0bfcf5c5 | 520 | (nth 5 (decode-time))) |
136211a9 | 521 | |
c9f618db JB |
522 | (defun math-leap-year-p (year &optional julian) |
523 | "Non-nil if YEAR is a leap year. | |
524 | If JULIAN is non-nil, then use the criterion for leap years | |
525 | in the Julian calendar, otherwise use the criterion in the | |
526 | Gregorian calendar." | |
527 | (if julian | |
136211a9 EZ |
528 | (if (math-negp year) |
529 | (= (math-imod (math-neg year) 4) 1) | |
530 | (= (math-imod year 4) 0)) | |
e8909bdc JB |
531 | (if (math-negp year) |
532 | (setq year (math-sub -1 year))) | |
136211a9 EZ |
533 | (setq year (math-imod year 400)) |
534 | (or (and (= (% year 4) 0) (/= (% year 100) 0)) | |
bf77c646 | 535 | (= year 0)))) |
136211a9 EZ |
536 | |
537 | (defun math-days-in-month (year month) | |
538 | (if (and (= month 2) (math-leap-year-p year)) | |
539 | 29 | |
bf77c646 | 540 | (aref [31 28 31 30 31 30 31 31 30 31 30 31] (1- month)))) |
136211a9 | 541 | |
c9f618db JB |
542 | (defun math-day-in-year (year month day &optional julian) |
543 | "Return the number of days of the year up to YEAR MONTH DAY. | |
544 | The count includes the given date. | |
545 | If JULIAN is non-nil, use the Julian calendar, otherwise | |
546 | use the Gregorian calendar." | |
136211a9 EZ |
547 | (let ((day-of-year (+ day (* 31 (1- month))))) |
548 | (if (> month 2) | |
549 | (progn | |
550 | (setq day-of-year (- day-of-year (/ (+ 23 (* 4 month)) 10))) | |
c9f618db | 551 | (if (math-leap-year-p year julian) |
136211a9 | 552 | (setq day-of-year (1+ day-of-year))))) |
bf77c646 | 553 | day-of-year)) |
136211a9 | 554 | |
c9f618db JB |
555 | (defun math-day-number (year month day) |
556 | "Return the number of days of the year up to YEAR MONTH DAY. | |
557 | The count includes the given date." | |
558 | (if calc-gregorian-switch | |
3dc7dad2 | 559 | (cond ((eq year (nth 0 calc-gregorian-switch)) |
c9f618db JB |
560 | (1+ |
561 | (- (math-absolute-from-dt year month day) | |
562 | (math-absolute-from-dt year 1 1)))) | |
563 | ((Math-lessp year (nth 0 calc-gregorian-switch)) | |
564 | (math-day-in-year year month day t)) | |
565 | (t | |
566 | (math-day-in-year year month day))) | |
567 | (math-day-in-year year month day))) | |
568 | ||
569 | (defun math-dt-before-p (dt1 dt2) | |
570 | "Non-nil if DT1 occurs before DT2. | |
571 | A DT is a list of the form (YEAR MONTH DAY)." | |
572 | (or (Math-lessp (nth 0 dt1) (nth 0 dt2)) | |
573 | (and (equal (nth 0 dt1) (nth 0 dt2)) | |
574 | (or (< (nth 1 dt1) (nth 1 dt2)) | |
575 | (and (= (nth 1 dt1) (nth 1 dt2)) | |
576 | (< (nth 2 dt1) (nth 2 dt2))))))) | |
577 | ||
578 | (defun math-absolute-from-gregorian-dt (year month day) | |
579 | "Return the DATE of the day given by the Gregorian day YEAR MONTH DAY. | |
580 | Recall that DATE is the number of days since December 31, -1 | |
581 | in the Gregorian calendar." | |
136211a9 EZ |
582 | (if (eq year 0) (setq year -1)) |
583 | (let ((yearm1 (math-sub year 1))) | |
c9f618db JB |
584 | (math-sub |
585 | ;; Add the number of days of the year and the numbers of days | |
586 | ;; in the previous years (leap year days to be added separately) | |
587 | (math-add (math-day-in-year year month day) | |
588 | (math-add (math-mul 365 yearm1) | |
589 | ;; Add the number of Julian leap years | |
590 | (if (math-posp year) | |
591 | (math-quotient yearm1 4) | |
592 | (math-sub 365 | |
593 | (math-quotient (math-sub 3 year) | |
594 | 4))))) | |
595 | ;; Subtract the number of Julian leap years which are not | |
596 | ;; Gregorian leap years. In C=4N+r centuries, there will | |
597 | ;; be 3N+r of these days. The following will compute | |
598 | ;; 3N+r. | |
599 | (let* ((correction (math-mul (math-quotient yearm1 100) 3)) | |
600 | (res (math-idivmod correction 4))) | |
601 | (math-add (if (= (cdr res) 0) | |
602 | 0 | |
603 | 1) | |
604 | (car res)))))) | |
605 | ||
606 | (defun math-absolute-from-julian-dt (year month day) | |
607 | "Return the DATE of the day given by the Julian day YEAR MONTH DAY. | |
608 | Recall that DATE is the number of days since December 31, -1 | |
609 | in the Gregorian calendar." | |
610 | (if (eq year 0) (setq year -1)) | |
611 | (let ((yearm1 (math-sub year 1))) | |
612 | (math-sub | |
613 | ;; Add the number of days of the year and the numbers of days | |
614 | ;; in the previous years (leap year days to be added separately) | |
615 | (math-add (math-day-in-year year month day) | |
616 | (math-add (math-mul 365 yearm1) | |
617 | ;; Add the number of Julian leap years | |
618 | (if (math-posp year) | |
619 | (math-quotient yearm1 4) | |
620 | (math-sub 365 | |
621 | (math-quotient (math-sub 3 year) | |
622 | 4))))) | |
623 | ;; Adjustment, since January 1, 1 (Julian) is absolute day -1 | |
624 | 2))) | |
625 | ||
3dc7dad2 JB |
626 | ;; calc-gregorian-switch is a customizable variable defined in calc.el |
627 | (defvar calc-gregorian-switch) | |
628 | ||
682ceaf8 JB |
629 | (defun math-absolute-from-iso-dt (year week day) |
630 | "Return the DATE of the day given by the iso8601 day YEAR WEEK DAY." | |
631 | (let* ((janfour (math-absolute-from-gregorian-dt year 1 4)) | |
632 | (prevmon (math-sub janfour | |
633 | (cdr (math-idivmod (math-sub janfour 1) 7))))) | |
634 | (math-add | |
635 | (math-add prevmon (* (1- week) 7)) | |
636 | (if (zerop day) 6 (1- day))))) | |
3dc7dad2 | 637 | |
c9f618db JB |
638 | (defun math-absolute-from-dt (year month day) |
639 | "Return the DATE of the day given by the day YEAR MONTH DAY. | |
640 | Recall that DATE is the number of days since December 31, -1 | |
641 | in the Gregorian calendar." | |
642 | (if (and calc-gregorian-switch | |
643 | ;; The next few lines determine if the given date | |
644 | ;; occurs before the switch to the Gregorian calendar. | |
645 | (math-dt-before-p (list year month day) calc-gregorian-switch)) | |
646 | (math-absolute-from-julian-dt year month day) | |
647 | (math-absolute-from-gregorian-dt year month day))) | |
136211a9 | 648 | |
865fe16f | 649 | ;;; It is safe to redefine these in your init file to use a different |
136211a9 EZ |
650 | ;;; language. |
651 | ||
652 | (defvar math-long-weekday-names '( "Sunday" "Monday" "Tuesday" "Wednesday" | |
653 | "Thursday" "Friday" "Saturday" )) | |
654 | (defvar math-short-weekday-names '( "Sun" "Mon" "Tue" "Wed" | |
655 | "Thu" "Fri" "Sat" )) | |
656 | ||
657 | (defvar math-long-month-names '( "January" "February" "March" "April" | |
658 | "May" "June" "July" "August" | |
659 | "September" "October" "November" "December" )) | |
660 | (defvar math-short-month-names '( "Jan" "Feb" "Mar" "Apr" "May" "Jun" | |
661 | "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" )) | |
662 | ||
663 | ||
3132f345 | 664 | (defvar math-format-date-cache nil) |
98223359 | 665 | |
d55ebb63 | 666 | ;; The variables math-fd-date, math-fd-dt, math-fd-year, |
98223359 JB |
667 | ;; math-fd-month, math-fd-day, math-fd-weekday, math-fd-hour, |
668 | ;; math-fd-minute, math-fd-second, math-fd-bc-flag are local | |
669 | ;; to math-format-date, but are used by math-format-date-part, | |
670 | ;; which is called by math-format-date. | |
671 | (defvar math-fd-date) | |
672 | (defvar math-fd-dt) | |
673 | (defvar math-fd-year) | |
674 | (defvar math-fd-month) | |
675 | (defvar math-fd-day) | |
676 | (defvar math-fd-weekday) | |
677 | (defvar math-fd-hour) | |
678 | (defvar math-fd-minute) | |
679 | (defvar math-fd-second) | |
680 | (defvar math-fd-bc-flag) | |
682ceaf8 JB |
681 | (defvar math-fd-iso-dt) |
682 | (defvar math-fd-isoyear) | |
683 | (defvar math-fd-isoweek) | |
684 | (defvar math-fd-isoweekday) | |
98223359 JB |
685 | |
686 | (defun math-format-date (math-fd-date) | |
687 | (if (eq (car-safe math-fd-date) 'date) | |
688 | (setq math-fd-date (nth 1 math-fd-date))) | |
689 | (let ((entry (list math-fd-date calc-internal-prec calc-date-format))) | |
136211a9 | 690 | (or (cdr (assoc entry math-format-date-cache)) |
98223359 | 691 | (let* ((math-fd-dt nil) |
682ceaf8 | 692 | (math-fd-iso-dt nil) |
136211a9 EZ |
693 | (calc-group-digits nil) |
694 | (calc-leading-zeros nil) | |
695 | (calc-number-radix 10) | |
2d1c8c66 | 696 | (calc-twos-complement-mode nil) |
d55ebb63 | 697 | math-fd-year math-fd-month math-fd-day math-fd-weekday |
98223359 | 698 | math-fd-hour math-fd-minute math-fd-second |
682ceaf8 | 699 | math-fd-isoyear math-fd-isoweek math-fd-isoweekday |
98223359 | 700 | (math-fd-bc-flag nil) |
136211a9 EZ |
701 | (fmt (apply 'concat (mapcar 'math-format-date-part |
702 | calc-date-format)))) | |
703 | (setq math-format-date-cache (cons (cons entry fmt) | |
704 | math-format-date-cache)) | |
98223359 JB |
705 | (and (setq math-fd-dt (nthcdr 10 math-format-date-cache)) |
706 | (setcdr math-fd-dt nil)) | |
bf77c646 | 707 | fmt)))) |
136211a9 | 708 | |
310e60d9 PE |
709 | (defconst math-julian-date-beginning '(float 17214225 -1) |
710 | "The beginning of the Julian date calendar, | |
711 | as measured in the number of days before December 31, 1 BC (Gregorian).") | |
98e9ffe3 | 712 | |
310e60d9 PE |
713 | (defconst math-julian-date-beginning-int 1721423 |
714 | "The beginning of the Julian date calendar, | |
715 | as measured in the integer number of days before December 31, 1 BC (Gregorian).") | |
98e9ffe3 | 716 | |
136211a9 EZ |
717 | (defun math-format-date-part (x) |
718 | (cond ((stringp x) | |
719 | x) | |
720 | ((listp x) | |
98223359 | 721 | (if (math-integerp math-fd-date) |
136211a9 EZ |
722 | "" |
723 | (apply 'concat (mapcar 'math-format-date-part x)))) | |
724 | ((eq x 'X) | |
725 | "") | |
726 | ((eq x 'N) | |
98223359 | 727 | (math-format-number math-fd-date)) |
136211a9 | 728 | ((eq x 'n) |
98223359 | 729 | (math-format-number (math-floor math-fd-date))) |
136211a9 | 730 | ((eq x 'J) |
3b6d80bc | 731 | (math-format-number |
98e9ffe3 | 732 | (math-add math-fd-date math-julian-date-beginning))) |
136211a9 | 733 | ((eq x 'j) |
3b6d80bc JB |
734 | (math-format-number (math-add |
735 | (math-floor math-fd-date) | |
98e9ffe3 | 736 | math-julian-date-beginning-int))) |
136211a9 | 737 | ((eq x 'U) |
98223359 | 738 | (math-format-number (nth 1 (math-date-parts math-fd-date 719164)))) |
682ceaf8 JB |
739 | ((memq x '(IYYY Iww w)) |
740 | (progn | |
741 | (or math-fd-iso-dt | |
742 | (setq math-fd-iso-dt (math-date-to-iso-dt math-fd-date) | |
682ceaf8 JB |
743 | math-fd-isoyear (car math-fd-iso-dt) |
744 | math-fd-isoweek (nth 1 math-fd-iso-dt) | |
745 | math-fd-isoweekday (nth 2 math-fd-iso-dt))) | |
746 | (cond ((eq x 'IYYY) | |
747 | (let* ((neg (Math-negp math-fd-isoyear)) | |
748 | (pyear (calcFunc-abs math-fd-isoyear))) | |
749 | (if (and (natnump pyear) (< pyear 10000)) | |
750 | (concat (if neg "-" "") (format "%04d" pyear)) | |
751 | (concat (if neg "-" "+") (math-format-number pyear))))) | |
752 | ((eq x 'Iww) | |
753 | (concat "W" (format "%02d" math-fd-isoweek))) | |
754 | ((eq x 'w) | |
755 | (format "%d" math-fd-isoweekday))))) | |
136211a9 | 756 | ((progn |
98223359 | 757 | (or math-fd-dt |
136211a9 | 758 | (progn |
98223359 JB |
759 | (setq math-fd-dt (math-date-to-dt math-fd-date) |
760 | math-fd-year (car math-fd-dt) | |
761 | math-fd-month (nth 1 math-fd-dt) | |
762 | math-fd-day (nth 2 math-fd-dt) | |
c9f618db | 763 | math-fd-weekday (math-mod (math-floor math-fd-date) 7) |
98223359 JB |
764 | math-fd-hour (nth 3 math-fd-dt) |
765 | math-fd-minute (nth 4 math-fd-dt) | |
766 | math-fd-second (nth 5 math-fd-dt)) | |
136211a9 | 767 | (and (memq 'b calc-date-format) |
98223359 JB |
768 | (math-negp math-fd-year) |
769 | (setq math-fd-year (math-neg math-fd-year) | |
770 | math-fd-bc-flag t)))) | |
136211a9 | 771 | (memq x '(Y YY BY))) |
98223359 | 772 | (if (and (integerp math-fd-year) (> math-fd-year 1940) (< math-fd-year 2040)) |
136211a9 EZ |
773 | (format (cond ((eq x 'YY) "%02d") |
774 | ((eq x 'BYY) "%2d") | |
775 | (t "%d")) | |
98223359 JB |
776 | (% math-fd-year 100)) |
777 | (if (and (natnump math-fd-year) (< math-fd-year 100)) | |
778 | (format "+%d" math-fd-year) | |
779 | (math-format-number math-fd-year)))) | |
136211a9 | 780 | ((eq x 'YYY) |
98223359 | 781 | (math-format-number math-fd-year)) |
136211a9 | 782 | ((eq x 'YYYY) |
98223359 JB |
783 | (if (and (natnump math-fd-year) (< math-fd-year 100)) |
784 | (format "+%d" math-fd-year) | |
785 | (math-format-number math-fd-year))) | |
682ceaf8 JB |
786 | ((eq x 'ZYYY) |
787 | (let* ((year (if (Math-negp math-fd-year) | |
788 | (math-add math-fd-year 1) | |
789 | math-fd-year)) | |
790 | (neg (Math-negp year)) | |
791 | (pyear (calcFunc-abs year))) | |
792 | (if (and (natnump pyear) (< pyear 10000)) | |
793 | (concat (if neg "-" "") (format "%04d" pyear)) | |
794 | (concat (if neg "-" "+") (math-format-number pyear))))) | |
136211a9 EZ |
795 | ((eq x 'b) "") |
796 | ((eq x 'aa) | |
98223359 | 797 | (and (not math-fd-bc-flag) "ad")) |
136211a9 | 798 | ((eq x 'AA) |
98223359 | 799 | (and (not math-fd-bc-flag) "AD")) |
136211a9 | 800 | ((eq x 'aaa) |
98223359 | 801 | (and (not math-fd-bc-flag) "ad ")) |
136211a9 | 802 | ((eq x 'AAA) |
98223359 | 803 | (and (not math-fd-bc-flag) "AD ")) |
136211a9 | 804 | ((eq x 'aaaa) |
98223359 | 805 | (and (not math-fd-bc-flag) "a.d.")) |
136211a9 | 806 | ((eq x 'AAAA) |
98223359 | 807 | (and (not math-fd-bc-flag) "A.D.")) |
136211a9 | 808 | ((eq x 'bb) |
98223359 | 809 | (and math-fd-bc-flag "bc")) |
136211a9 | 810 | ((eq x 'BB) |
98223359 | 811 | (and math-fd-bc-flag "BC")) |
136211a9 | 812 | ((eq x 'bbb) |
98223359 | 813 | (and math-fd-bc-flag " bc")) |
136211a9 | 814 | ((eq x 'BBB) |
98223359 | 815 | (and math-fd-bc-flag " BC")) |
136211a9 | 816 | ((eq x 'bbbb) |
98223359 | 817 | (and math-fd-bc-flag "b.c.")) |
136211a9 | 818 | ((eq x 'BBBB) |
98223359 | 819 | (and math-fd-bc-flag "B.C.")) |
682ceaf8 | 820 | ((eq x 'T) "T") |
136211a9 | 821 | ((eq x 'M) |
98223359 | 822 | (format "%d" math-fd-month)) |
136211a9 | 823 | ((eq x 'MM) |
98223359 | 824 | (format "%02d" math-fd-month)) |
136211a9 | 825 | ((eq x 'BM) |
98223359 | 826 | (format "%2d" math-fd-month)) |
136211a9 | 827 | ((eq x 'mmm) |
98223359 | 828 | (downcase (nth (1- math-fd-month) math-short-month-names))) |
136211a9 | 829 | ((eq x 'Mmm) |
98223359 | 830 | (nth (1- math-fd-month) math-short-month-names)) |
136211a9 | 831 | ((eq x 'MMM) |
98223359 | 832 | (upcase (nth (1- math-fd-month) math-short-month-names))) |
136211a9 | 833 | ((eq x 'Mmmm) |
98223359 | 834 | (nth (1- math-fd-month) math-long-month-names)) |
136211a9 | 835 | ((eq x 'MMMM) |
98223359 | 836 | (upcase (nth (1- math-fd-month) math-long-month-names))) |
136211a9 | 837 | ((eq x 'D) |
98223359 | 838 | (format "%d" math-fd-day)) |
136211a9 | 839 | ((eq x 'DD) |
98223359 | 840 | (format "%02d" math-fd-day)) |
136211a9 | 841 | ((eq x 'BD) |
98223359 | 842 | (format "%2d" math-fd-day)) |
136211a9 | 843 | ((eq x 'W) |
98223359 | 844 | (format "%d" math-fd-weekday)) |
136211a9 | 845 | ((eq x 'www) |
98223359 | 846 | (downcase (nth math-fd-weekday math-short-weekday-names))) |
136211a9 | 847 | ((eq x 'Www) |
98223359 | 848 | (nth math-fd-weekday math-short-weekday-names)) |
136211a9 | 849 | ((eq x 'WWW) |
98223359 | 850 | (upcase (nth math-fd-weekday math-short-weekday-names))) |
136211a9 | 851 | ((eq x 'Wwww) |
98223359 | 852 | (nth math-fd-weekday math-long-weekday-names)) |
136211a9 | 853 | ((eq x 'WWWW) |
98223359 | 854 | (upcase (nth math-fd-weekday math-long-weekday-names))) |
136211a9 | 855 | ((eq x 'd) |
98223359 | 856 | (format "%d" (math-day-number math-fd-year math-fd-month math-fd-day))) |
136211a9 | 857 | ((eq x 'ddd) |
98223359 | 858 | (format "%03d" (math-day-number math-fd-year math-fd-month math-fd-day))) |
136211a9 | 859 | ((eq x 'bdd) |
98223359 | 860 | (format "%3d" (math-day-number math-fd-year math-fd-month math-fd-day))) |
136211a9 | 861 | ((eq x 'h) |
98223359 | 862 | (and math-fd-hour (format "%d" math-fd-hour))) |
136211a9 | 863 | ((eq x 'hh) |
98223359 | 864 | (and math-fd-hour (format "%02d" math-fd-hour))) |
136211a9 | 865 | ((eq x 'bh) |
98223359 | 866 | (and math-fd-hour (format "%2d" math-fd-hour))) |
136211a9 | 867 | ((eq x 'H) |
98223359 | 868 | (and math-fd-hour (format "%d" (1+ (% (+ math-fd-hour 11) 12))))) |
136211a9 | 869 | ((eq x 'HH) |
98223359 | 870 | (and math-fd-hour (format "%02d" (1+ (% (+ math-fd-hour 11) 12))))) |
136211a9 | 871 | ((eq x 'BH) |
98223359 | 872 | (and math-fd-hour (format "%2d" (1+ (% (+ math-fd-hour 11) 12))))) |
136211a9 | 873 | ((eq x 'p) |
98223359 | 874 | (and math-fd-hour (if (< math-fd-hour 12) "a" "p"))) |
136211a9 | 875 | ((eq x 'P) |
98223359 | 876 | (and math-fd-hour (if (< math-fd-hour 12) "A" "P"))) |
136211a9 | 877 | ((eq x 'pp) |
98223359 | 878 | (and math-fd-hour (if (< math-fd-hour 12) "am" "pm"))) |
136211a9 | 879 | ((eq x 'PP) |
98223359 | 880 | (and math-fd-hour (if (< math-fd-hour 12) "AM" "PM"))) |
136211a9 | 881 | ((eq x 'pppp) |
98223359 | 882 | (and math-fd-hour (if (< math-fd-hour 12) "a.m." "p.m."))) |
136211a9 | 883 | ((eq x 'PPPP) |
98223359 | 884 | (and math-fd-hour (if (< math-fd-hour 12) "A.M." "P.M."))) |
136211a9 | 885 | ((eq x 'm) |
98223359 | 886 | (and math-fd-minute (format "%d" math-fd-minute))) |
136211a9 | 887 | ((eq x 'mm) |
98223359 | 888 | (and math-fd-minute (format "%02d" math-fd-minute))) |
136211a9 | 889 | ((eq x 'bm) |
98223359 | 890 | (and math-fd-minute (format "%2d" math-fd-minute))) |
136211a9 | 891 | ((eq x 'C) |
98223359 | 892 | (and math-fd-second (not (math-zerop math-fd-second)) |
136211a9 EZ |
893 | ":")) |
894 | ((memq x '(s ss bs SS BS)) | |
98223359 JB |
895 | (and math-fd-second |
896 | (not (and (memq x '(SS BS)) (math-zerop math-fd-second))) | |
897 | (if (integerp math-fd-second) | |
136211a9 EZ |
898 | (format (cond ((memq x '(ss SS)) "%02d") |
899 | ((memq x '(bs BS)) "%2d") | |
900 | (t "%d")) | |
98223359 JB |
901 | math-fd-second) |
902 | (concat (if (Math-lessp math-fd-second 10) | |
136211a9 EZ |
903 | (cond ((memq x '(ss SS)) "0") |
904 | ((memq x '(bs BS)) " ") | |
905 | (t "")) | |
906 | "") | |
907 | (let ((calc-float-format | |
908 | (list 'fix (min (- 12 calc-internal-prec) | |
909 | 0)))) | |
98223359 | 910 | (math-format-number math-fd-second)))))))) |
136211a9 | 911 | |
98223359 JB |
912 | ;; The variable math-pd-str is local to math-parse-date and |
913 | ;; math-parse-standard-date, but is used by math-parse-date-word, | |
914 | ;; which is called by math-parse-date and math-parse-standard-date. | |
915 | (defvar math-pd-str) | |
136211a9 | 916 | |
98223359 | 917 | (defun math-parse-date (math-pd-str) |
136211a9 | 918 | (catch 'syntax |
98223359 JB |
919 | (or (math-parse-standard-date math-pd-str t) |
920 | (math-parse-standard-date math-pd-str nil) | |
fd1f1603 | 921 | (and (string-match "W[0-9][0-9]" math-pd-str) |
ff3f6c26 | 922 | (math-parse-iso-date math-pd-str)) |
98223359 JB |
923 | (and (string-match "\\`[^-+/0-9a-zA-Z]*\\([-+]?[0-9]+\\.?[0-9]*\\([eE][-+]?[0-9]+\\)?\\)[^-+/0-9a-zA-Z]*\\'" math-pd-str) |
924 | (list 'date (math-read-number (math-match-substring math-pd-str 1)))) | |
136211a9 EZ |
925 | (let ((case-fold-search t) |
926 | (year nil) (month nil) (day nil) (weekday nil) | |
927 | (hour nil) (minute nil) (second nil) (bc-flag nil) | |
928 | (a nil) (b nil) (c nil) (bigyear nil) temp) | |
929 | ||
930 | ;; Extract the time, if any. | |
96cd475f JB |
931 | (if (or (string-match "\\([0-9][0-9]?\\):\\([0-9][0-9]?\\)\\(:\\([0-9][0-9]?\\(\\.[0-9]+\\)?\\)\\)? *\\([ap]\\>\\|[ap]m\\|[ap]\\. *m\\.\\|noon\\|n\\>\\|midnight\\|mid\\>\\|m\\>\\)?" math-pd-str) |
932 | (string-match "\\([0-9][0-9]?\\)\\(\\)\\(\\(\\(\\)\\)\\) *\\([ap]\\>\\|[ap]m\\|[ap]\\. *m\\.\\|noon\\|n\\>\\|midnight\\|mid\\>\\|m\\>\\)" math-pd-str)) | |
98223359 | 933 | (let ((ampm (math-match-substring math-pd-str 6))) |
5574e209 | 934 | (setq hour (string-to-number (math-match-substring math-pd-str 1)) |
98223359 JB |
935 | minute (math-match-substring math-pd-str 2) |
936 | second (math-match-substring math-pd-str 4) | |
937 | math-pd-str (concat (substring math-pd-str 0 (match-beginning 0)) | |
938 | (substring math-pd-str (match-end 0)))) | |
136211a9 EZ |
939 | (if (equal minute "") |
940 | (setq minute 0) | |
5574e209 | 941 | (setq minute (string-to-number minute))) |
136211a9 EZ |
942 | (if (equal second "") |
943 | (setq second 0) | |
944 | (setq second (math-read-number second))) | |
945 | (if (equal ampm "") | |
fd1f1603 JB |
946 | (if (or |
947 | (> hour 24) | |
948 | (and (= hour 24) | |
949 | (not (= minute 0)) | |
950 | (not (eq second 0)))) | |
951 | (throw 'syntax "Hour value is out of range")) | |
136211a9 EZ |
952 | (setq ampm (upcase (aref ampm 0))) |
953 | (if (memq ampm '(?N ?M)) | |
954 | (if (and (= hour 12) (= minute 0) (eq second 0)) | |
955 | (if (eq ampm ?M) (setq hour 0)) | |
956 | (throw 'syntax | |
957 | "Time must be 12:00:00 in this context")) | |
958 | (if (or (= hour 0) (> hour 12)) | |
fd1f1603 | 959 | (throw 'syntax "Hour value is out of range")) |
136211a9 EZ |
960 | (if (eq (= ampm ?A) (= hour 12)) |
961 | (setq hour (% (+ hour 12) 24))))))) | |
962 | ||
963 | ;; Rewrite xx-yy-zz to xx/yy/zz to avoid seeing "-" as a minus sign. | |
98223359 | 964 | (while (string-match "[0-9a-zA-Z]\\(-\\)[0-9a-zA-Z]" math-pd-str) |
136211a9 | 965 | (progn |
98223359 JB |
966 | (setq math-pd-str (copy-sequence math-pd-str)) |
967 | (aset math-pd-str (match-beginning 1) ?\/))) | |
136211a9 EZ |
968 | |
969 | ;; Extract obvious month or weekday names. | |
98223359 | 970 | (if (string-match "[a-zA-Z]" math-pd-str) |
136211a9 EZ |
971 | (progn |
972 | (setq month (math-parse-date-word math-long-month-names)) | |
973 | (setq weekday (math-parse-date-word math-long-weekday-names)) | |
974 | (or month (setq month | |
975 | (math-parse-date-word math-short-month-names))) | |
976 | (or weekday (math-parse-date-word math-short-weekday-names)) | |
977 | (or hour | |
978 | (if (setq temp (math-parse-date-word | |
979 | '( "noon" "midnight" "mid" ))) | |
980 | (setq hour (if (= temp 1) 12 0) minute 0 second 0))) | |
981 | (or (math-parse-date-word '( "ad" "a.d." )) | |
982 | (if (math-parse-date-word '( "bc" "b.c." )) | |
983 | (setq bc-flag t))) | |
98223359 | 984 | (if (string-match "[a-zA-Z]+" math-pd-str) |
136211a9 | 985 | (throw 'syntax (format "Bad word in date: \"%s\"" |
98223359 | 986 | (math-match-substring math-pd-str 0)))))) |
136211a9 EZ |
987 | |
988 | ;; If there is a huge number other than the year, ignore it. | |
98223359 JB |
989 | (while (and (string-match "[-+]?0*[1-9][0-9][0-9][0-9][0-9]+" math-pd-str) |
990 | (setq temp (concat (substring math-pd-str 0 (match-beginning 0)) | |
991 | (substring math-pd-str (match-end 0)))) | |
d55ebb63 | 992 | (string-match |
98223359 JB |
993 | "[4-9][0-9]\\|[0-9][0-9][0-9]\\|[-+][0-9]+[^-]*\\'" temp)) |
994 | (setq math-pd-str temp)) | |
136211a9 EZ |
995 | |
996 | ;; If there is a number with a sign or a large number, it is a year. | |
98223359 JB |
997 | (if (or (string-match "\\([-+][0-9]+\\)[^-]*\\'" math-pd-str) |
998 | (string-match "\\(0*[1-9][0-9][0-9]+\\)" math-pd-str)) | |
999 | (setq year (math-match-substring math-pd-str 1) | |
1000 | math-pd-str (concat (substring math-pd-str 0 (match-beginning 1)) | |
1001 | (substring math-pd-str (match-end 1))) | |
136211a9 EZ |
1002 | year (math-read-number year) |
1003 | bigyear t)) | |
1004 | ||
1005 | ;; Collect remaining numbers. | |
1006 | (setq temp 0) | |
98223359 | 1007 | (while (string-match "[0-9]+" math-pd-str temp) |
136211a9 | 1008 | (and c (throw 'syntax "Too many numbers in date")) |
5574e209 | 1009 | (setq c (string-to-number (math-match-substring math-pd-str 0))) |
136211a9 EZ |
1010 | (or b (setq b c c nil)) |
1011 | (or a (setq a b b nil)) | |
1012 | (setq temp (match-end 0))) | |
1013 | ||
1014 | ;; Check that we have the right amount of information. | |
1015 | (setq temp (+ (if year 1 0) (if month 1 0) (if day 1 0) | |
1016 | (if a 1 0) (if b 1 0) (if c 1 0))) | |
1017 | (if (> temp 3) | |
1018 | (throw 'syntax "Too many numbers in date") | |
1019 | (if (or (< temp 2) (and year (= temp 2))) | |
1020 | (throw 'syntax "Not enough numbers in date") | |
1021 | (if (= temp 2) ; if year omitted, assume current year | |
1022 | (setq year (math-this-year))))) | |
1023 | ||
1024 | ;; A large number must be a year. | |
1025 | (or year | |
1026 | (if (and a (or (> a 31) (< a 1))) | |
1027 | (setq year a a b b c c nil) | |
1028 | (if (and b (or (> b 31) (< b 1))) | |
1029 | (setq year b b c c nil) | |
1030 | (if (and c (or (> c 31) (< c 1))) | |
1031 | (setq year c c nil))))) | |
1032 | ||
1033 | ;; A medium-large number must be a day. | |
1034 | (if year | |
1035 | (if (and a (> a 12)) | |
1036 | (setq day a a b b c c nil) | |
1037 | (if (and b (> b 12)) | |
1038 | (setq day b b c c nil) | |
1039 | (if (and c (> c 12)) | |
1040 | (setq day c c nil))))) | |
1041 | ||
1042 | ;; We may know enough to sort it out now. | |
1043 | (if (and year day) | |
1044 | (or month (setq month a)) | |
1045 | (if (and year month) | |
1046 | (setq day a) | |
1047 | ||
1048 | ;; Interpret order of numbers as same as for display format. | |
1049 | (setq temp calc-date-format) | |
1050 | (while temp | |
1051 | (cond ((not (symbolp (car temp)))) | |
1052 | ((memq (car temp) '(Y YY BY YYY YYYY)) | |
1053 | (or year (setq year a a b b c))) | |
1054 | ((memq (car temp) '(M MM BM mmm Mmm Mmmm MMM MMMM)) | |
1055 | (or month (setq month a a b b c))) | |
1056 | ((memq (car temp) '(D DD BD)) | |
1057 | (or day (setq day a a b b c)))) | |
1058 | (setq temp (cdr temp))) | |
1059 | ||
1060 | ;; If display format was not complete, assume American style. | |
1061 | (or month (setq month a a b b c)) | |
1062 | (or day (setq day a a b b c)) | |
1063 | (or year (setq year a a b b c)))) | |
1064 | ||
1065 | (if bc-flag | |
1066 | (setq year (math-neg (math-abs year)))) | |
1067 | ||
1068 | (math-parse-date-validate year bigyear month day | |
bf77c646 | 1069 | hour minute second))))) |
136211a9 EZ |
1070 | |
1071 | (defun math-parse-date-validate (year bigyear month day hour minute second) | |
1072 | (and (not bigyear) (natnump year) (< year 100) | |
1073 | (setq year (+ year (if (< year 40) 2000 1900)))) | |
1074 | (if (eq year 0) | |
1075 | (throw 'syntax "Year value is out of range")) | |
1076 | (if (or (< month 1) (> month 12)) | |
1077 | (throw 'syntax "Month value is out of range")) | |
1078 | (if (or (< day 1) (> day (math-days-in-month year month))) | |
1079 | (throw 'syntax "Day value is out of range")) | |
1080 | (and hour | |
1081 | (progn | |
fd1f1603 JB |
1082 | (if (or (< hour 0) |
1083 | (> hour 24) | |
1084 | (and (= hour 24) | |
1085 | (not (= minute 0)) | |
1086 | (not (eq second 0)))) | |
136211a9 EZ |
1087 | (throw 'syntax "Hour value is out of range")) |
1088 | (if (or (< minute 0) (> minute 59)) | |
1089 | (throw 'syntax "Minute value is out of range")) | |
1090 | (if (or (math-negp second) (not (Math-lessp second 60))) | |
1091 | (throw 'syntax "Seconds value is out of range")))) | |
1092 | (list 'date (math-dt-to-date (append (list year month day) | |
bf77c646 | 1093 | (and hour (list hour minute second)))))) |
136211a9 | 1094 | |
682ceaf8 JB |
1095 | (defun math-parse-iso-date-validate (isoyear isoweek isoweekday hour minute second) |
1096 | (if (or (< isoweek 1) (> isoweek 53)) | |
1097 | (throw 'syntax "Week value is out of range")) | |
ff3f6c26 JB |
1098 | (if (or (< isoweekday 1) (> isoweekday 7)) |
1099 | (throw 'syntax "Weekday value is out of range")) | |
682ceaf8 JB |
1100 | (and hour |
1101 | (progn | |
fd1f1603 JB |
1102 | (if (or (< hour 0) |
1103 | (> hour 24) | |
1104 | (and (= hour 24) | |
1105 | (not (= minute 0)) | |
1106 | (not (eq second 0)))) | |
682ceaf8 JB |
1107 | (throw 'syntax "Hour value is out of range")) |
1108 | (if (or (< minute 0) (> minute 59)) | |
1109 | (throw 'syntax "Minute value is out of range")) | |
1110 | (if (or (math-negp second) (not (Math-lessp second 60))) | |
1111 | (throw 'syntax "Seconds value is out of range")))) | |
1112 | (list 'date (math-iso-dt-to-date (append (list isoyear isoweek isoweekday) | |
1113 | (and hour (list hour minute second)))))) | |
1114 | ||
136211a9 EZ |
1115 | (defun math-parse-date-word (names &optional front) |
1116 | (let ((n 1)) | |
1117 | (while (and names (not (string-match (if (equal (car names) "Sep") | |
1118 | "Sept?" | |
1119 | (regexp-quote (car names))) | |
98223359 | 1120 | math-pd-str))) |
136211a9 EZ |
1121 | (setq names (cdr names) |
1122 | n (1+ n))) | |
1123 | (and names | |
1124 | (or (not front) (= (match-beginning 0) 0)) | |
1125 | (progn | |
98223359 | 1126 | (setq math-pd-str (concat (substring math-pd-str 0 (match-beginning 0)) |
136211a9 | 1127 | (if front "" " ") |
98223359 | 1128 | (substring math-pd-str (match-end 0)))) |
bf77c646 | 1129 | n)))) |
136211a9 | 1130 | |
98223359 | 1131 | (defun math-parse-standard-date (math-pd-str with-time) |
136211a9 EZ |
1132 | (let ((case-fold-search t) |
1133 | (okay t) num | |
1134 | (fmt calc-date-format) this next (gnext nil) | |
682ceaf8 | 1135 | (isoyear nil) (isoweek nil) (isoweekday nil) |
136211a9 EZ |
1136 | (year nil) (month nil) (day nil) (bigyear nil) (yearday nil) |
1137 | (hour nil) (minute nil) (second nil) (bc-flag nil)) | |
1138 | (while (and fmt okay) | |
1139 | (setq this (car fmt) | |
1140 | fmt (setq fmt (or (cdr fmt) | |
1141 | (prog1 | |
1142 | gnext | |
1143 | (setq gnext nil)))) | |
1144 | next (car fmt)) | |
1145 | (if (consp next) (setq next (car next))) | |
1146 | (or (cond ((listp this) | |
1147 | (or (not with-time) | |
1148 | (not this) | |
1149 | (setq gnext fmt | |
1150 | fmt this))) | |
1151 | ((stringp this) | |
98223359 | 1152 | (if (and (<= (length this) (length math-pd-str)) |
136211a9 | 1153 | (equal this |
98223359 JB |
1154 | (substring math-pd-str 0 (length this)))) |
1155 | (setq math-pd-str (substring math-pd-str (length this))))) | |
136211a9 EZ |
1156 | ((eq this 'X) |
1157 | t) | |
1158 | ((memq this '(n N j J)) | |
98223359 JB |
1159 | (and (string-match "\\`[-+]?[0-9.]+\\([eE][-+]?[0-9]+\\)?" math-pd-str) |
1160 | (setq num (math-match-substring math-pd-str 0) | |
1161 | math-pd-str (substring math-pd-str (match-end 0)) | |
136211a9 EZ |
1162 | num (math-date-to-dt (math-read-number num)) |
1163 | num (math-sub num | |
1164 | (if (memq this '(n N)) | |
1165 | 0 | |
1166 | (if (or (eq this 'j) | |
1167 | (math-integerp num)) | |
98e9ffe3 JB |
1168 | math-julian-date-beginning-int |
1169 | math-julian-date-beginning))) | |
136211a9 EZ |
1170 | hour (or (nth 3 num) hour) |
1171 | minute (or (nth 4 num) minute) | |
1172 | second (or (nth 5 num) second) | |
1173 | year (car num) | |
1174 | month (nth 1 num) | |
1175 | day (nth 2 num)))) | |
1176 | ((eq this 'U) | |
98223359 JB |
1177 | (and (string-match "\\`[-+]?[0-9]+" math-pd-str) |
1178 | (setq num (math-match-substring math-pd-str 0) | |
1179 | math-pd-str (substring math-pd-str (match-end 0)) | |
136211a9 EZ |
1180 | num (math-date-to-dt |
1181 | (math-add 719164 | |
1182 | (math-div (math-read-number num) | |
1183 | '(float 864 2)))) | |
1184 | hour (nth 3 num) | |
1185 | minute (nth 4 num) | |
1186 | second (nth 5 num) | |
1187 | year (car num) | |
1188 | month (nth 1 num) | |
1189 | day (nth 2 num)))) | |
1190 | ((memq this '(mmm Mmm MMM)) | |
1191 | (setq month (math-parse-date-word math-short-month-names t))) | |
1192 | ((memq this '(Mmmm MMMM)) | |
1193 | (setq month (math-parse-date-word math-long-month-names t))) | |
1194 | ((memq this '(www Www WWW)) | |
1195 | (math-parse-date-word math-short-weekday-names t)) | |
1196 | ((memq this '(Wwww WWWW)) | |
1197 | (math-parse-date-word math-long-weekday-names t)) | |
1198 | ((memq this '(p P)) | |
98223359 | 1199 | (if (string-match "\\`a" math-pd-str) |
136211a9 | 1200 | (setq hour (if (= hour 12) 0 hour) |
98223359 JB |
1201 | math-pd-str (substring math-pd-str 1)) |
1202 | (if (string-match "\\`p" math-pd-str) | |
136211a9 | 1203 | (setq hour (if (= hour 12) 12 (% (+ hour 12) 24)) |
98223359 | 1204 | math-pd-str (substring math-pd-str 1))))) |
136211a9 | 1205 | ((memq this '(pp PP pppp PPPP)) |
98223359 | 1206 | (if (string-match "\\`am\\|a\\.m\\." math-pd-str) |
136211a9 | 1207 | (setq hour (if (= hour 12) 0 hour) |
98223359 JB |
1208 | math-pd-str (substring math-pd-str (match-end 0))) |
1209 | (if (string-match "\\`pm\\|p\\.m\\." math-pd-str) | |
136211a9 | 1210 | (setq hour (if (= hour 12) 12 (% (+ hour 12) 24)) |
98223359 | 1211 | math-pd-str (substring math-pd-str (match-end 0)))))) |
682ceaf8 | 1212 | ((memq this '(Y YY BY YYY YYYY ZYYY)) |
136211a9 EZ |
1213 | (and (if (memq next '(MM DD ddd hh HH mm ss SS)) |
1214 | (if (memq this '(Y YY BYY)) | |
98223359 JB |
1215 | (string-match "\\` *[0-9][0-9]" math-pd-str) |
1216 | (string-match "\\`[0-9][0-9][0-9][0-9]" math-pd-str)) | |
1217 | (string-match "\\`[-+]?[0-9]+" math-pd-str)) | |
1218 | (setq year (math-match-substring math-pd-str 0) | |
682ceaf8 | 1219 | bigyear (or (eq this 'YYY) |
98223359 JB |
1220 | (memq (aref math-pd-str 0) '(?\+ ?\-))) |
1221 | math-pd-str (substring math-pd-str (match-end 0)) | |
682ceaf8 JB |
1222 | year (math-read-number year)) |
1223 | (if (and (eq this 'ZYYY) (eq year 0)) | |
1224 | (setq year (math-sub year 1) | |
1225 | bigyear t) | |
1226 | t))) | |
1227 | ((eq this 'IYYY) | |
1228 | (if (string-match "\\`[-+]?[0-9]+" math-pd-str) | |
1229 | (setq isoyear (string-to-number (math-match-substring math-pd-str 0)) | |
1230 | math-pd-str (substring math-pd-str (match-end 0))))) | |
1231 | ((eq this 'Iww) | |
1232 | (if (string-match "W\\([0-9][0-9]\\)" math-pd-str) | |
1233 | (setq isoweek (string-to-number (math-match-substring math-pd-str 1)) | |
1234 | math-pd-str (substring math-pd-str 3)))) | |
136211a9 EZ |
1235 | ((eq this 'b) |
1236 | t) | |
682ceaf8 JB |
1237 | ((eq this 'T) |
1238 | (if (eq (aref math-pd-str 0) ?T) | |
1239 | (setq math-pd-str (substring math-pd-str 1)) | |
1240 | t)) | |
136211a9 | 1241 | ((memq this '(aa AA aaaa AAAA)) |
98223359 JB |
1242 | (if (string-match "\\` *\\(ad\\|a\\.d\\.\\)" math-pd-str) |
1243 | (setq math-pd-str (substring math-pd-str (match-end 0))))) | |
136211a9 | 1244 | ((memq this '(aaa AAA)) |
98223359 JB |
1245 | (if (string-match "\\` *ad *" math-pd-str) |
1246 | (setq math-pd-str (substring math-pd-str (match-end 0))))) | |
136211a9 | 1247 | ((memq this '(bb BB bbb BBB bbbb BBBB)) |
98223359 JB |
1248 | (if (string-match "\\` *\\(bc\\|b\\.c\\.\\)" math-pd-str) |
1249 | (setq math-pd-str (substring math-pd-str (match-end 0)) | |
136211a9 EZ |
1250 | bc-flag t))) |
1251 | ((memq this '(s ss bs SS BS)) | |
1252 | (and (if (memq next '(YY YYYY MM DD hh HH mm)) | |
98223359 JB |
1253 | (string-match "\\` *[0-9][0-9]\\(\\.[0-9]+\\)?" math-pd-str) |
1254 | (string-match "\\` *[0-9][0-9]?\\(\\.[0-9]+\\)?" math-pd-str)) | |
1255 | (setq second (math-match-substring math-pd-str 0) | |
1256 | math-pd-str (substring math-pd-str (match-end 0)) | |
136211a9 EZ |
1257 | second (math-read-number second)))) |
1258 | ((eq this 'C) | |
98223359 JB |
1259 | (if (string-match "\\`:[0-9][0-9]" math-pd-str) |
1260 | (setq math-pd-str (substring math-pd-str 1)) | |
136211a9 EZ |
1261 | t)) |
1262 | ((or (not (if (and (memq this '(ddd MM DD hh HH mm)) | |
1263 | (memq next '(YY YYYY MM DD ddd | |
1264 | hh HH mm ss SS))) | |
1265 | (if (eq this 'ddd) | |
98223359 JB |
1266 | (string-match "\\` *[0-9][0-9][0-9]" math-pd-str) |
1267 | (string-match "\\` *[0-9][0-9]" math-pd-str)) | |
1268 | (string-match "\\` *[0-9]+" math-pd-str))) | |
5574e209 | 1269 | (and (setq num (string-to-number |
98223359 JB |
1270 | (math-match-substring math-pd-str 0)) |
1271 | math-pd-str (substring math-pd-str (match-end 0))) | |
136211a9 EZ |
1272 | nil)) |
1273 | nil) | |
1274 | ((eq this 'W) | |
682ceaf8 JB |
1275 | (and (>= num 0) (< num 7))) |
1276 | ((eq this 'w) | |
1277 | (setq isoweekday num)) | |
136211a9 EZ |
1278 | ((memq this '(d ddd bdd)) |
1279 | (setq yearday num)) | |
1280 | ((memq this '(M MM BM)) | |
1281 | (setq month num)) | |
1282 | ((memq this '(D DD BD)) | |
1283 | (setq day num)) | |
1284 | ((memq this '(h hh bh H HH BH)) | |
1285 | (setq hour num)) | |
1286 | ((memq this '(m mm bm)) | |
1287 | (setq minute num))) | |
1288 | (setq okay nil))) | |
1289 | (if yearday | |
1290 | (if (and month day) | |
1291 | (setq yearday nil) | |
1292 | (setq month 1 day 1))) | |
98223359 | 1293 | (if (and okay (equal math-pd-str "")) |
682ceaf8 JB |
1294 | (if isoyear |
1295 | (math-parse-iso-date-validate isoyear isoweek isoweekday hour minute second) | |
1296 | (and month day (or (not (or hour minute second)) | |
1297 | (and hour minute)) | |
1298 | (progn | |
1299 | (or year (setq year (math-this-year))) | |
1300 | (or second (setq second 0)) | |
1301 | (if bc-flag | |
1302 | (setq year (math-neg (math-abs year)))) | |
1303 | (setq day (math-parse-date-validate year bigyear month day | |
1304 | hour minute second)) | |
1305 | (if yearday | |
1306 | (setq day (math-add day (1- yearday)))) | |
1307 | day)))))) | |
136211a9 | 1308 | |
ff3f6c26 JB |
1309 | (defun math-parse-iso-date (math-pd-str) |
1310 | "Parse MATH-PD-STR as an ISO week date, or return nil." | |
1311 | (let ((case-fold-search t) | |
1312 | (isoyear nil) (isoweek nil) (isoweekday nil) | |
1313 | (hour nil) (minute nil) (second nil)) | |
1314 | ;; Extract the time, if any. | |
1315 | (if (string-match "T[^0-9]*\\([0-9][0-9]\\)[^0-9]*\\([0-9][0-9]\\)?[^0-9]*\\([0-9][0-9]\\(\\.[0-9]+\\)?\\)?" math-pd-str) | |
1316 | (progn | |
1317 | (setq hour (string-to-number (math-match-substring math-pd-str 1)) | |
1318 | minute (math-match-substring math-pd-str 2) | |
1319 | second (math-match-substring math-pd-str 3) | |
1320 | math-pd-str (substring math-pd-str 0 (match-beginning 0))) | |
1321 | (if (equal minute "") | |
1322 | (setq minute 0) | |
1323 | (setq minute (string-to-number minute))) | |
1324 | (if (equal second "") | |
1325 | (setq second 0) | |
1326 | (setq second (math-read-number second))))) | |
1327 | ;; Next, the year, week and weekday | |
1328 | (if (string-match "\\(-?[0-9]*\\)[^0-9]*W\\([0-9][0-9]\\)[^0-9]*\\([0-9]\\)[^0-9]*\\'" math-pd-str) | |
1329 | (progn | |
1330 | (setq isoyear (string-to-number (math-match-substring math-pd-str 1)) | |
1331 | isoweek (string-to-number (math-match-substring math-pd-str 2)) | |
1332 | isoweekday (string-to-number (math-match-substring math-pd-str 3))) | |
1333 | (math-parse-iso-date-validate isoyear isoweek isoweekday hour minute second))))) | |
136211a9 EZ |
1334 | |
1335 | (defun calcFunc-now (&optional zone) | |
1336 | (let ((date (let ((calc-date-format nil)) | |
1337 | (math-parse-date (current-time-string))))) | |
1338 | (if (consp date) | |
1339 | (if zone | |
1340 | (math-add date (math-div (math-sub (calcFunc-tzone nil date) | |
1341 | (calcFunc-tzone zone date)) | |
1342 | '(float 864 2))) | |
1343 | date) | |
1344 | (calc-record-why "*Unable to interpret current date from system") | |
bf77c646 | 1345 | (append (list 'calcFunc-now) (and zone (list zone)))))) |
136211a9 EZ |
1346 | |
1347 | (defun calcFunc-year (date) | |
bf77c646 | 1348 | (car (math-date-to-dt date))) |
136211a9 EZ |
1349 | |
1350 | (defun calcFunc-month (date) | |
bf77c646 | 1351 | (nth 1 (math-date-to-dt date))) |
136211a9 EZ |
1352 | |
1353 | (defun calcFunc-day (date) | |
bf77c646 | 1354 | (nth 2 (math-date-to-dt date))) |
136211a9 EZ |
1355 | |
1356 | (defun calcFunc-weekday (date) | |
1357 | (if (eq (car-safe date) 'date) | |
1358 | (setq date (nth 1 date))) | |
1359 | (or (math-realp date) | |
1360 | (math-reject-arg date 'datep)) | |
c9f618db | 1361 | (math-mod (math-floor date) 7)) |
136211a9 EZ |
1362 | |
1363 | (defun calcFunc-yearday (date) | |
1364 | (let ((dt (math-date-to-dt date))) | |
bf77c646 | 1365 | (math-day-number (car dt) (nth 1 dt) (nth 2 dt)))) |
136211a9 EZ |
1366 | |
1367 | (defun calcFunc-hour (date) | |
1368 | (if (eq (car-safe date) 'hms) | |
1369 | (nth 1 date) | |
bf77c646 | 1370 | (or (nth 3 (math-date-to-dt date)) 0))) |
136211a9 EZ |
1371 | |
1372 | (defun calcFunc-minute (date) | |
1373 | (if (eq (car-safe date) 'hms) | |
1374 | (nth 2 date) | |
bf77c646 | 1375 | (or (nth 4 (math-date-to-dt date)) 0))) |
136211a9 EZ |
1376 | |
1377 | (defun calcFunc-second (date) | |
1378 | (if (eq (car-safe date) 'hms) | |
1379 | (nth 3 date) | |
bf77c646 | 1380 | (or (nth 5 (math-date-to-dt date)) 0))) |
136211a9 EZ |
1381 | |
1382 | (defun calcFunc-time (date) | |
1383 | (let ((dt (math-date-to-dt date))) | |
1384 | (if (nth 3 dt) | |
1385 | (cons 'hms (nthcdr 3 dt)) | |
bf77c646 | 1386 | (list 'hms 0 0 0)))) |
136211a9 EZ |
1387 | |
1388 | (defun calcFunc-date (date &optional month day hour minute second) | |
1389 | (and (math-messy-integerp month) (setq month (math-trunc month))) | |
1390 | (and month (not (integerp month)) (math-reject-arg month 'fixnump)) | |
1391 | (and (math-messy-integerp day) (setq day (math-trunc day))) | |
1392 | (and day (not (integerp day)) (math-reject-arg day 'fixnump)) | |
1393 | (if (and (eq (car-safe hour) 'hms) (not minute)) | |
1394 | (setq second (nth 3 hour) | |
1395 | minute (nth 2 hour) | |
1396 | hour (nth 1 hour))) | |
1397 | (and (math-messy-integerp hour) (setq hour (math-trunc hour))) | |
1398 | (and hour (not (integerp hour)) (math-reject-arg hour 'fixnump)) | |
1399 | (and (math-messy-integerp minute) (setq minute (math-trunc minute))) | |
1400 | (and minute (not (integerp minute)) (math-reject-arg minute 'fixnump)) | |
1401 | (and (math-messy-integerp second) (setq second (math-trunc second))) | |
1402 | (and second (not (math-realp second)) (math-reject-arg second 'realp)) | |
1403 | (if month | |
1404 | (progn | |
1405 | (and (math-messy-integerp date) (setq date (math-trunc date))) | |
1406 | (and date (not (math-integerp date)) (math-reject-arg date 'integerp)) | |
1407 | (if day | |
1408 | (if hour | |
1409 | (list 'date (math-dt-to-date (list date month day hour | |
1410 | (or minute 0) | |
1411 | (or second 0)))) | |
1412 | (list 'date (math-dt-to-date (list date month day)))) | |
1413 | (list 'date (math-dt-to-date (list (math-this-year) date month))))) | |
1414 | (if (math-realp date) | |
1415 | (list 'date date) | |
1416 | (if (eq (car date) 'date) | |
1417 | (nth 1 date) | |
bf77c646 | 1418 | (math-reject-arg date 'datep))))) |
136211a9 EZ |
1419 | |
1420 | (defun calcFunc-julian (date &optional zone) | |
1421 | (if (math-realp date) | |
1422 | (list 'date (if (math-integerp date) | |
98e9ffe3 JB |
1423 | (math-sub date math-julian-date-beginning-int) |
1424 | (setq date (math-sub date math-julian-date-beginning)) | |
136211a9 EZ |
1425 | (math-sub date (math-div (calcFunc-tzone zone date) |
1426 | '(float 864 2))))) | |
1427 | (if (eq (car date) 'date) | |
1428 | (math-add (nth 1 date) (if (math-integerp (nth 1 date)) | |
98e9ffe3 JB |
1429 | math-julian-date-beginning-int |
1430 | (math-add math-julian-date-beginning | |
136211a9 EZ |
1431 | (math-div (calcFunc-tzone zone date) |
1432 | '(float 864 2))))) | |
bf77c646 | 1433 | (math-reject-arg date 'datep)))) |
136211a9 EZ |
1434 | |
1435 | (defun calcFunc-unixtime (date &optional zone) | |
1436 | (if (math-realp date) | |
1437 | (progn | |
1438 | (setq date (math-add 719164 (math-div date '(float 864 2)))) | |
1439 | (list 'date (math-sub date (math-div (calcFunc-tzone zone date) | |
1440 | '(float 864 2))))) | |
1441 | (if (eq (car date) 'date) | |
1442 | (math-add (nth 1 (math-date-parts (nth 1 date) 719164)) | |
1443 | (calcFunc-tzone zone date)) | |
bf77c646 | 1444 | (math-reject-arg date 'datep)))) |
136211a9 | 1445 | |
98223359 JB |
1446 | |
1447 | ;;; Note: Longer names must appear before shorter names which are | |
1448 | ;;; substrings of them. | |
1449 | (defvar math-tzone-names | |
d55ebb63 | 1450 | '(( "UTC" 0 0) |
98223359 JB |
1451 | ( "MEGT" -1 "MET" "METDST" ) ; Middle Europe |
1452 | ( "METDST" -1 -1 ) ( "MET" -1 0 ) | |
1453 | ( "MEGZ" -1 "MEZ" "MESZ" ) ( "MEZ" -1 0 ) ( "MESZ" -1 -1 ) | |
1454 | ( "WEGT" 0 "WET" "WETDST" ) ; Western Europe | |
1455 | ( "WETDST" 0 -1 ) ( "WET" 0 0 ) | |
1456 | ( "BGT" 0 "GMT" "BST" ) ( "GMT" 0 0 ) ( "BST" 0 -1 ) ; Britain | |
1457 | ( "NGT" (float 35 -1) "NST" "NDT" ) ; Newfoundland | |
1458 | ( "NST" (float 35 -1) 0 ) ( "NDT" (float 35 -1) -1 ) | |
1459 | ( "AGT" 4 "AST" "ADT" ) ( "AST" 4 0 ) ( "ADT" 4 -1 ) ; Atlantic | |
1460 | ( "EGT" 5 "EST" "EDT" ) ( "EST" 5 0 ) ( "EDT" 5 -1 ) ; Eastern | |
1461 | ( "CGT" 6 "CST" "CDT" ) ( "CST" 6 0 ) ( "CDT" 6 -1 ) ; Central | |
1462 | ( "MGT" 7 "MST" "MDT" ) ( "MST" 7 0 ) ( "MDT" 7 -1 ) ; Mountain | |
1463 | ( "PGT" 8 "PST" "PDT" ) ( "PST" 8 0 ) ( "PDT" 8 -1 ) ; Pacific | |
1464 | ( "YGT" 9 "YST" "YDT" ) ( "YST" 9 0 ) ( "YDT" 9 -1 ) ; Yukon | |
1465 | ) | |
1466 | "No doc yet. See calc manual for now. ") | |
1467 | ||
94a95495 JB |
1468 | (defvar var-TimeZone nil) |
1469 | ||
1470 | ;; From cal-dst | |
1471 | (defvar calendar-current-time-zone-cache) | |
1472 | ||
1473 | (defvar math-calendar-tzinfo | |
1474 | nil | |
1475 | "Information about the timezone, retrieved from the calendar.") | |
1476 | ||
1477 | (defun math-get-calendar-tzinfo () | |
1478 | "Get information about the timezone from the calendar. | |
1479 | The result should be a list of two items about the current time zone: | |
1480 | first, the number of seconds difference from GMT | |
1481 | second, the number of seconds offset for daylight savings." | |
1482 | (if math-calendar-tzinfo | |
1483 | math-calendar-tzinfo | |
1484 | (require 'cal-dst) | |
1485 | (let ((tzinfo (progn | |
1486 | (calendar-current-time-zone) | |
1487 | calendar-current-time-zone-cache))) | |
1488 | (setq math-calendar-tzinfo | |
1489 | (list (* 60 (abs (nth 0 tzinfo))) | |
1490 | (* 60 (nth 1 tzinfo))))))) | |
98223359 | 1491 | |
136211a9 EZ |
1492 | (defun calcFunc-tzone (&optional zone date) |
1493 | (if zone | |
1494 | (cond ((math-realp zone) | |
1495 | (math-round (math-mul zone 3600))) | |
1496 | ((eq (car zone) 'hms) | |
1497 | (math-round (math-mul (math-from-hms zone 'deg) 3600))) | |
1498 | ((eq (car zone) '+) | |
1499 | (math-add (calcFunc-tzone (nth 1 zone) date) | |
1500 | (calcFunc-tzone (nth 2 zone) date))) | |
1501 | ((eq (car zone) '-) | |
1502 | (math-sub (calcFunc-tzone (nth 1 zone) date) | |
1503 | (calcFunc-tzone (nth 2 zone) date))) | |
1504 | ((eq (car zone) 'var) | |
1505 | (let ((name (upcase (symbol-name (nth 1 zone)))) | |
1506 | found) | |
1507 | (if (setq found (assoc name math-tzone-names)) | |
1508 | (calcFunc-tzone (math-add (nth 1 found) | |
1509 | (if (integerp (nth 2 found)) | |
1510 | (nth 2 found) | |
1511 | (or | |
1512 | (math-daylight-savings-adjust | |
1513 | date (car found)) | |
1514 | 0))) | |
1515 | date) | |
1516 | (if (equal name "LOCAL") | |
1517 | (calcFunc-tzone nil date) | |
1518 | (math-reject-arg zone "*Unrecognized time zone name"))))) | |
1519 | (t (math-reject-arg zone "*Expected a time zone"))) | |
1520 | (if (calc-var-value 'var-TimeZone) | |
1521 | (calcFunc-tzone (calc-var-value 'var-TimeZone) date) | |
94a95495 JB |
1522 | (let ((tzinfo (math-get-calendar-tzinfo))) |
1523 | (+ (nth 0 tzinfo) | |
1524 | (* (math-cal-daylight-savings-adjust date) (nth 1 tzinfo))))))) | |
136211a9 | 1525 | |
98223359 | 1526 | (defvar math-daylight-savings-hook 'math-std-daylight-savings) |
136211a9 EZ |
1527 | |
1528 | (defun math-daylight-savings-adjust (date zone &optional dt) | |
1529 | (or date (setq date (nth 1 (calcFunc-now)))) | |
1530 | (let (bump) | |
1531 | (if (eq (car-safe date) 'date) | |
1532 | (setq bump 0 | |
1533 | date (nth 1 date)) | |
1534 | (if (and date (math-realp date)) | |
1535 | (let ((zadj (assoc zone math-tzone-names))) | |
1536 | (if zadj (setq bump -1 | |
1537 | date (math-sub date (math-div (nth 1 zadj) | |
1538 | '(float 24 0)))))) | |
1539 | (math-reject-arg date 'datep))) | |
1540 | (setq date (math-float date)) | |
1541 | (or dt (setq dt (math-date-to-dt date))) | |
1542 | (and math-daylight-savings-hook | |
bf77c646 | 1543 | (funcall math-daylight-savings-hook date dt zone bump)))) |
136211a9 | 1544 | |
94a95495 JB |
1545 | ;;; Based on part of dst-adjust-time in cal-dst.el |
1546 | ;;; For calcFunc-dst, when zone=nil | |
1547 | (defun math-cal-daylight-savings-adjust (date) | |
1548 | "Return -1 if DATE is using daylight saving, 0 otherwise." | |
1549 | (require 'cal-dst) | |
1550 | (unless date (setq date (calcFunc-now))) | |
1551 | (let* ((dt (math-date-to-dt date)) | |
1552 | (time (cond | |
1553 | ((nth 3 dt) | |
1554 | (nth 3 dt)) | |
1555 | ((nth 4 dt) | |
1556 | (+ (nth 3 dt) (/ (nth 4 dt) 60.0))) | |
1557 | (t | |
1558 | 0))) | |
1559 | (rounded-abs-date | |
1560 | (+ | |
c9f618db | 1561 | (calendar-absolute-from-gregorian |
94a95495 JB |
1562 | (list (nth 1 dt) (nth 2 dt) (nth 0 dt))) |
1563 | (/ (round (* 60 time)) 60.0 24.0)))) | |
1564 | (if (dst-in-effect rounded-abs-date) | |
1565 | -1 | |
1566 | 0))) | |
1567 | ||
136211a9 EZ |
1568 | (defun calcFunc-dsadj (date &optional zone) |
1569 | (if zone | |
1570 | (or (eq (car-safe zone) 'var) | |
1571 | (math-reject-arg zone "*Time zone variable expected")) | |
94a95495 JB |
1572 | (setq zone (calc-var-value 'var-TimeZone))) |
1573 | (if zone | |
1574 | (progn | |
1575 | (setq zone (and (eq (car-safe zone) 'var) | |
1576 | (upcase (symbol-name (nth 1 zone))))) | |
1577 | (let ((zadj (assoc zone math-tzone-names))) | |
1578 | (or zadj (math-reject-arg zone "*Unrecognized time zone name")) | |
1579 | (if (integerp (nth 2 zadj)) | |
1580 | (nth 2 zadj) | |
1581 | (math-daylight-savings-adjust date zone)))) | |
1582 | (math-cal-daylight-savings-adjust date))) | |
1583 | ||
1584 | ;; (defun calcFunc-dsadj (date &optional zone) | |
1585 | ;; (if zone | |
1586 | ;; (or (eq (car-safe zone) 'var) | |
1587 | ;; (math-reject-arg zone "*Time zone variable expected")) | |
1588 | ;; (setq zone (or (calc-var-value 'var-TimeZone) | |
1589 | ;; (progn | |
1590 | ;; (calcFunc-tzone) | |
1591 | ;; (calc-var-value 'var-TimeZone))))) | |
1592 | ;; (setq zone (and (eq (car-safe zone) 'var) | |
1593 | ;; (upcase (symbol-name (nth 1 zone))))) | |
1594 | ;; (let ((zadj (assoc zone math-tzone-names))) | |
1595 | ;; (or zadj (math-reject-arg zone "*Unrecognized time zone name")) | |
1596 | ;; (if (integerp (nth 2 zadj)) | |
1597 | ;; (nth 2 zadj) | |
1598 | ;; (math-daylight-savings-adjust date zone)))) | |
136211a9 EZ |
1599 | |
1600 | (defun calcFunc-tzconv (date z1 z2) | |
1601 | (if (math-realp date) | |
1602 | (nth 1 (calcFunc-tzconv (list 'date date) z1 z2)) | |
bf77c646 | 1603 | (calcFunc-unixtime (calcFunc-unixtime date z1) z2))) |
136211a9 | 1604 | |
136211a9 | 1605 | (defun math-std-daylight-savings (date dt zone bump) |
16e5f961 | 1606 | "Standard North American daylight saving algorithm. |
96cd475f | 1607 | Before 2007, this uses `math-std-daylight-savings-old', where |
d55ebb63 | 1608 | daylight saving began on the first Sunday of April at 2 a.m., |
96cd475f JB |
1609 | and ended on the last Sunday of October at 2 a.m. |
1610 | As of 2007, this uses `math-std-daylight-savings-new', where | |
1611 | daylight saving begins on the second Sunday of March at 2 a.m., | |
1612 | and ends on the first Sunday of November at 2 a.m." | |
1613 | (if (< (car dt) 2007) | |
1614 | (math-std-daylight-savings-old date dt zone bump) | |
1615 | (math-std-daylight-savings-new date dt zone bump))) | |
1616 | ||
1617 | (defun math-std-daylight-savings-new (date dt zone bump) | |
1618 | "Standard North American daylight saving algorithm as of 2007. | |
1619 | This implements the rules for the U.S. and Canada. | |
16e5f961 CY |
1620 | Daylight saving begins on the second Sunday of March at 2 a.m., |
1621 | and ends on the first Sunday of November at 2 a.m." | |
1622 | (cond ((< (nth 1 dt) 3) 0) | |
1623 | ((= (nth 1 dt) 3) | |
1624 | (let ((sunday (math-prev-weekday-in-month date dt 14 0))) | |
136211a9 EZ |
1625 | (cond ((< (nth 2 dt) sunday) 0) |
1626 | ((= (nth 2 dt) sunday) | |
1627 | (if (>= (nth 3 dt) (+ 3 bump)) -1 0)) | |
1628 | (t -1)))) | |
16e5f961 CY |
1629 | ((< (nth 1 dt) 11) -1) |
1630 | ((= (nth 1 dt) 11) | |
1631 | (let ((sunday (math-prev-weekday-in-month date dt 7 0))) | |
136211a9 EZ |
1632 | (cond ((< (nth 2 dt) sunday) -1) |
1633 | ((= (nth 2 dt) sunday) | |
1634 | (if (>= (nth 3 dt) (+ 2 bump)) 0 -1)) | |
1635 | (t 0)))) | |
bf77c646 | 1636 | (t 0))) |
136211a9 | 1637 | |
96cd475f | 1638 | (defun math-std-daylight-savings-old (date dt zone bump) |
d55ebb63 | 1639 | "Standard North American daylight saving algorithm before 2007. |
96cd475f | 1640 | This implements the rules for the U.S. and Canada. |
d55ebb63 | 1641 | Daylight saving begins on the first Sunday of April at 2 a.m., |
96cd475f JB |
1642 | and ends on the last Sunday of October at 2 a.m." |
1643 | (cond ((< (nth 1 dt) 4) 0) | |
1644 | ((= (nth 1 dt) 4) | |
1645 | (let ((sunday (math-prev-weekday-in-month date dt 7 0))) | |
1646 | (cond ((< (nth 2 dt) sunday) 0) | |
1647 | ((= (nth 2 dt) sunday) | |
1648 | (if (>= (nth 3 dt) (+ 3 bump)) -1 0)) | |
1649 | (t -1)))) | |
1650 | ((< (nth 1 dt) 10) -1) | |
1651 | ((= (nth 1 dt) 10) | |
1652 | (let ((sunday (math-prev-weekday-in-month date dt 31 0))) | |
1653 | (cond ((< (nth 2 dt) sunday) -1) | |
1654 | ((= (nth 2 dt) sunday) | |
1655 | (if (>= (nth 3 dt) (+ 2 bump)) 0 -1)) | |
1656 | (t 0)))) | |
1657 | (t 0))) | |
1658 | ||
136211a9 EZ |
1659 | ;;; Compute the day (1-31) of the WDAY (0-6) on or preceding the given |
1660 | ;;; day of the given month. | |
1661 | (defun math-prev-weekday-in-month (date dt day wday) | |
1662 | (or day (setq day (nth 2 dt))) | |
1663 | (if (> day (math-days-in-month (car dt) (nth 1 dt))) | |
1664 | (setq day (math-days-in-month (car dt) (nth 1 dt)))) | |
1665 | (let ((zeroth (math-sub (math-floor date) (nth 2 dt)))) | |
bf77c646 | 1666 | (math-sub (nth 1 (calcFunc-newweek (math-add zeroth day))) zeroth))) |
136211a9 EZ |
1667 | |
1668 | (defun calcFunc-pwday (date &optional day weekday) | |
1669 | (if (eq (car-safe date) 'date) | |
1670 | (setq date (nth 1 date))) | |
1671 | (or (math-realp date) | |
1672 | (math-reject-arg date 'datep)) | |
1673 | (if (math-messy-integerp day) (setq day (math-trunc day))) | |
1674 | (or (integerp day) (math-reject-arg day 'fixnump)) | |
1675 | (if (= day 0) (setq day 31)) | |
1676 | (and (or (< day 7) (> day 31)) (math-reject-arg day 'range)) | |
bf77c646 | 1677 | (math-prev-weekday-in-month date (math-date-to-dt date) day (or weekday 0))) |
136211a9 EZ |
1678 | |
1679 | ||
1680 | (defun calcFunc-newweek (date &optional weekday) | |
1681 | (if (eq (car-safe date) 'date) | |
1682 | (setq date (nth 1 date))) | |
1683 | (or (math-realp date) | |
1684 | (math-reject-arg date 'datep)) | |
1685 | (or weekday (setq weekday 0)) | |
1686 | (and (math-messy-integerp weekday) (setq weekday (math-trunc weekday))) | |
1687 | (or (integerp weekday) (math-reject-arg weekday 'fixnump)) | |
1688 | (and (or (< weekday 0) (> weekday 6)) (math-reject-arg weekday 'range)) | |
1689 | (setq date (math-floor date)) | |
bf77c646 | 1690 | (list 'date (math-sub date (calcFunc-weekday (math-sub date weekday))))) |
136211a9 EZ |
1691 | |
1692 | (defun calcFunc-newmonth (date &optional day) | |
1693 | (or day (setq day 1)) | |
1694 | (and (math-messy-integerp day) (setq day (math-trunc day))) | |
1695 | (or (integerp day) (math-reject-arg day 'fixnump)) | |
1696 | (and (or (< day 0) (> day 31)) (math-reject-arg day 'range)) | |
c9f618db JB |
1697 | (let* ((dt (math-date-to-dt date)) |
1698 | (dim (math-days-in-month (car dt) (nth 1 dt))) | |
1699 | (julian (if calc-gregorian-switch | |
1700 | (math-date-to-dt (math-sub | |
1701 | (or (nth 3 calc-gregorian-switch) | |
1702 | (apply 'math-absolute-from-gregorian-dt calc-gregorian-switch)) | |
1703 | 1))))) | |
1704 | (if (or (= day 0) (> day dim)) | |
1705 | (setq day (1- dim)) | |
1706 | (setq day (1- day))) | |
1707 | ;; Adjust if this occurs near the switch to the Gregorian calendar | |
1708 | (if calc-gregorian-switch | |
1709 | (cond | |
1710 | ((and (math-dt-before-p (list (car dt) (nth 1 dt) 1) calc-gregorian-switch) | |
1711 | (math-dt-before-p julian (list (car dt) (nth 1 dt) 1))) | |
1712 | ;; In this case, CALC-GREGORIAN-SWITCH is the first day of the month | |
1713 | (list 'date | |
1714 | (math-dt-to-date (list (car calc-gregorian-switch) | |
1715 | (nth 1 calc-gregorian-switch) | |
1716 | (if (> (+ (nth 2 calc-gregorian-switch) day) dim) | |
1717 | dim | |
1718 | (+ (nth 2 calc-gregorian-switch) day)))))) | |
1719 | ((and (eq (car dt) (car calc-gregorian-switch)) | |
1720 | (= (nth 1 dt) (nth 1 calc-gregorian-switch))) | |
1721 | ;; In this case, the switch to the Gregorian calendar occurs in the given month | |
1722 | (if (< (+ (nth 2 julian) day) (nth 2 calc-gregorian-switch)) | |
1723 | ;; If the DAYth day occurs before the switch, use it | |
1724 | (list 'date (math-dt-to-date (list (car dt) (nth 1 dt) (1+ day)))) | |
1725 | ;; Otherwise do some computations | |
1726 | (let ((tm (+ day (- (nth 2 calc-gregorian-switch) (nth 2 julian))))) | |
1727 | (list 'date (math-dt-to-date | |
1728 | (list (car dt) | |
1729 | (nth 1 dt) | |
1730 | ;; | |
1731 | (if (> tm dim) dim tm))))))) | |
1732 | ((and (eq (car dt) (car julian)) | |
1733 | (= (nth 1 dt) (nth 1 julian))) | |
1734 | ;; In this case, the current month is truncated because of the switch | |
1735 | ;; to the Gregorian calendar | |
1736 | (list 'date (math-dt-to-date | |
1737 | (list (car dt) | |
1738 | (nth 1 dt) | |
1739 | (if (>= day (nth 2 julian)) | |
1740 | (nth 2 julian) | |
1741 | (1+ day)))))) | |
1742 | (t | |
1743 | ;; The default | |
1744 | (list 'date (math-add (math-dt-to-date (list (car dt) (nth 1 dt) 1)) day)))) | |
1745 | (list 'date (math-add (math-dt-to-date (list (car dt) (nth 1 dt) 1)) day))))) | |
136211a9 EZ |
1746 | |
1747 | (defun calcFunc-newyear (date &optional day) | |
c9f618db | 1748 | (if (eq (car-safe date) 'date) (setq date (nth 1 date))) |
136211a9 EZ |
1749 | (or day (setq day 1)) |
1750 | (and (math-messy-integerp day) (setq day (math-trunc day))) | |
1751 | (or (integerp day) (math-reject-arg day 'fixnump)) | |
c9f618db JB |
1752 | (let* ((dt (math-date-to-dt date)) |
1753 | (gregbeg (if calc-gregorian-switch | |
1754 | (or (nth 3 calc-gregorian-switch) | |
1755 | (apply 'math-absolute-from-gregorian-dt calc-gregorian-switch)))) | |
1756 | (julianend (if calc-gregorian-switch (math-sub gregbeg 1))) | |
1757 | (julian (if calc-gregorian-switch | |
1758 | (math-date-to-dt julianend)))) | |
136211a9 | 1759 | (if (and (>= day 0) (<= day 366)) |
c9f618db | 1760 | (let ((max (if (math-leap-year-p (car dt)) 366 365))) |
136211a9 | 1761 | (if (or (= day 0) (> day max)) (setq day max)) |
c9f618db JB |
1762 | (if calc-gregorian-switch |
1763 | ;; Now to break this down into cases | |
1764 | (cond | |
1765 | ((and (math-dt-before-p (list (car dt) 1 1) calc-gregorian-switch) | |
1766 | (math-dt-before-p julian (list (car dt) 1 1))) | |
1767 | ;; In this case, CALC-GREGORIAN-SWITCH is the first day of the year | |
1768 | (list 'date (math-min (math-add gregbeg (1- day)) | |
1769 | (math-dt-to-date (list (car calc-gregorian-switch) 12 31))))) | |
1770 | ((eq (car dt) (car julian)) | |
1771 | ;; In this case, the switch to the Gregorian calendar occurs in the given year | |
1772 | (if (Math-lessp (car julian) (car calc-gregorian-switch)) | |
1773 | ;; Here, the last Julian day is the last day of the year. | |
1774 | (list 'date (math-min (math-add (math-dt-to-date (list (car dt) 1 1)) (1- day)) | |
1775 | julianend)) | |
1776 | ;; Otherwise, just make sure the date doesn't go past the end of the year | |
1777 | (list 'date (math-min (math-add (math-dt-to-date (list (car dt) 1 1)) (1- day)) | |
1778 | (math-dt-to-date (list (car dt) 12 31)))))) | |
1779 | (t | |
1780 | (list 'date (math-add (math-dt-to-date (list (car dt) 1 1)) | |
1781 | (1- day))))) | |
1782 | (list 'date (math-add (math-dt-to-date (list (car dt) 1 1)) | |
1783 | (1- day))))) | |
136211a9 | 1784 | (if (and (>= day -12) (<= day -1)) |
c9f618db JB |
1785 | (if (and calc-gregorian-switch |
1786 | (math-dt-before-p (list (car dt) (- day) 1) calc-gregorian-switch) | |
1787 | (math-dt-before-p julian (list (car dt) (- day) 1))) | |
1788 | (list 'date gregbeg) | |
1789 | (list 'date (math-dt-to-date (list (car dt) (- day) 1)))) | |
1790 | (math-reject-arg day 'range))))) | |
136211a9 EZ |
1791 | |
1792 | (defun calcFunc-incmonth (date &optional step) | |
1793 | (or step (setq step 1)) | |
1794 | (and (math-messy-integerp step) (setq step (math-trunc step))) | |
1795 | (or (math-integerp step) (math-reject-arg step 'integerp)) | |
1796 | (let* ((dt (math-date-to-dt date)) | |
1797 | (year (car dt)) | |
1798 | (month (math-add (1- (nth 1 dt)) step)) | |
1799 | (extra (calcFunc-idiv month 12)) | |
1800 | (day (nth 2 dt))) | |
1801 | (setq month (1+ (math-sub month (math-mul extra 12))) | |
1802 | year (math-add year extra) | |
1803 | day (min day (math-days-in-month year month))) | |
1804 | (and (math-posp (car dt)) (not (math-posp year)) | |
1805 | (setq year (math-sub year 1))) ; did we go past the year zero? | |
1806 | (and (math-negp (car dt)) (not (math-negp year)) | |
1807 | (setq year (math-add year 1))) | |
1808 | (list 'date (math-dt-to-date | |
bf77c646 | 1809 | (cons year (cons month (cons day (cdr (cdr (cdr dt)))))))))) |
136211a9 EZ |
1810 | |
1811 | (defun calcFunc-incyear (date &optional step) | |
bf77c646 | 1812 | (calcFunc-incmonth date (math-mul (or step 1) 12))) |
136211a9 EZ |
1813 | |
1814 | ||
1815 | ||
1816 | (defun calcFunc-bsub (a b) | |
1817 | (or (eq (car-safe a) 'date) | |
1818 | (math-reject-arg a 'datep)) | |
1819 | (if (eq (car-safe b) 'date) | |
1820 | (if (math-lessp (nth 1 a) (nth 1 b)) | |
1821 | (math-neg (calcFunc-bsub b a)) | |
1822 | (math-setup-holidays b) | |
1823 | (let* ((da (math-to-business-day a)) | |
1824 | (db (math-to-business-day b))) | |
1825 | (math-add (math-sub (car da) (car db)) | |
1826 | (if (and (cdr db) (not (cdr da))) 1 0)))) | |
bf77c646 | 1827 | (calcFunc-badd a (math-neg b)))) |
136211a9 | 1828 | |
3132f345 CW |
1829 | (defvar math-holidays-cache nil) |
1830 | (defvar math-holidays-cache-tag t) | |
136211a9 EZ |
1831 | (defun calcFunc-badd (a b) |
1832 | (if (eq (car-safe b) 'date) | |
1833 | (if (eq (car-safe a) 'date) | |
25f72ec0 | 1834 | (math-reject-arg nil "*Invalid combination in date arithmetic") |
136211a9 EZ |
1835 | (calcFunc-badd b a)) |
1836 | (if (eq (car-safe a) 'date) | |
1837 | (if (Math-realp b) | |
1838 | (if (Math-zerop b) | |
1839 | a | |
1840 | (let* ((d (math-to-business-day a)) | |
1841 | (bb (math-add (car d) | |
1842 | (if (and (cdr d) (Math-posp b)) | |
1843 | (math-sub b 1) b)))) | |
1844 | (or (math-from-business-day bb) | |
1845 | (calcFunc-badd a b)))) | |
1846 | (if (eq (car-safe b) 'hms) | |
1847 | (let ((hours (nth 7 math-holidays-cache))) | |
1848 | (setq b (math-div (math-from-hms b 'deg) 24)) | |
1849 | (if hours | |
1850 | (setq b (math-div b (cdr hours)))) | |
1851 | (calcFunc-badd a b)) | |
25f72ec0 | 1852 | (math-reject-arg nil "*Invalid combination in date arithmetic"))) |
bf77c646 | 1853 | (math-reject-arg a 'datep)))) |
136211a9 EZ |
1854 | |
1855 | (defun calcFunc-holiday (a) | |
bf77c646 | 1856 | (if (cdr (math-to-business-day a)) 1 0)) |
136211a9 | 1857 | |
136211a9 EZ |
1858 | ;;; Compute the number of business days since Jan 1, 1 AD. |
1859 | ||
1860 | (defun math-to-business-day (date &optional need-year) | |
1861 | (if (eq (car-safe date) 'date) | |
1862 | (setq date (nth 1 date))) | |
1863 | (or (Math-realp date) | |
1864 | (math-reject-arg date 'datep)) | |
1865 | (let* ((day (math-floor date)) | |
1866 | (time (math-sub date day)) | |
1867 | (dt (math-date-to-dt day)) | |
1868 | (delta 0) | |
1869 | (holiday nil)) | |
1870 | (or (not need-year) (eq (car dt) need-year) | |
1871 | (math-reject-arg (list 'date day) "*Generated holiday has wrong year")) | |
1872 | (math-setup-holidays date) | |
1873 | (let ((days (car math-holidays-cache))) | |
1874 | (while (and (setq days (cdr days)) (< (car days) day)) | |
1875 | (setq delta (1+ delta))) | |
1876 | (and days (= day (car days)) | |
1877 | (setq holiday t))) | |
1878 | (let* ((weekdays (nth 3 math-holidays-cache)) | |
1879 | (weeks (1- (/ (+ day 6) 7))) | |
1880 | (wkday (- day 1 (* weeks 7)))) | |
1881 | (setq delta (+ delta (* weeks (length weekdays)))) | |
1882 | (while (and weekdays (< (car weekdays) wkday)) | |
1883 | (setq weekdays (cdr weekdays) | |
1884 | delta (1+ delta))) | |
1885 | (and weekdays (eq wkday (car weekdays)) | |
1886 | (setq holiday t))) | |
1887 | (let ((hours (nth 7 math-holidays-cache))) | |
1888 | (if hours | |
1889 | (progn | |
1890 | (setq time (math-div (math-sub time (car hours)) (cdr hours))) | |
1891 | (if (Math-lessp time 0) (setq time 0)) | |
1892 | (or (Math-lessp time 1) | |
1893 | (setq time | |
1894 | (math-sub 1 | |
1895 | (math-div 1 (math-mul 86400 (cdr hours))))))))) | |
bf77c646 | 1896 | (cons (math-add (math-sub day delta) time) holiday))) |
136211a9 EZ |
1897 | |
1898 | ||
1899 | ;;; Compute the date a certain number of business days since Jan 1, 1 AD. | |
f0529b5b | 1900 | ;;; If this returns nil, holiday table was adjusted; redo calculation. |
136211a9 EZ |
1901 | |
1902 | (defun math-from-business-day (num) | |
1903 | (let* ((day (math-floor num)) | |
1904 | (time (math-sub num day))) | |
1905 | (or (integerp day) | |
1906 | (math-reject-arg nil "*Date is outside valid range")) | |
1907 | (math-setup-holidays) | |
1908 | (let ((days (nth 1 math-holidays-cache)) | |
1909 | (delta 0)) | |
1910 | (while (and (setq days (cdr days)) (< (car days) day)) | |
1911 | (setq delta (1+ delta))) | |
1912 | (setq day (+ day delta))) | |
1913 | (let* ((weekdays (nth 3 math-holidays-cache)) | |
1914 | (bweek (- 7 (length weekdays))) | |
1915 | (weeks (1- (/ (+ day (1- bweek)) bweek))) | |
1916 | (wkday (- day 1 (* weeks bweek))) | |
1917 | (w 0)) | |
1918 | (setq day (+ day (* weeks (length weekdays)))) | |
1919 | (while (if (memq w weekdays) | |
1920 | (setq day (1+ day)) | |
1921 | (> (setq wkday (1- wkday)) 0)) | |
1922 | (setq w (1+ w))) | |
1923 | (let ((hours (nth 7 math-holidays-cache))) | |
1924 | (if hours | |
1925 | (setq time (math-add (math-mul time (cdr hours)) (car hours))))) | |
1926 | (and (not (math-setup-holidays day)) | |
bf77c646 | 1927 | (list 'date (math-add day time)))))) |
136211a9 | 1928 | |
98223359 JB |
1929 | ;; The variable math-sh-year is local to math-setup-holidays |
1930 | ;; and math-setup-year-holiday, but is used by math-setup-add-holidays, | |
1931 | ;; which is called by math-setup-holidays and math-setup-year-holiday. | |
1932 | (defvar math-sh-year) | |
136211a9 EZ |
1933 | |
1934 | (defun math-setup-holidays (&optional date) | |
1935 | (or (eq (calc-var-value 'var-Holidays) math-holidays-cache-tag) | |
1936 | (let ((h (calc-var-value 'var-Holidays)) | |
1937 | (wdnames '( (sun . 0) (mon . 1) (tue . 2) (wed . 3) | |
1938 | (thu . 4) (fri . 5) (sat . 6) )) | |
1939 | (days nil) (weekdays nil) (exprs nil) (limit nil) (hours nil)) | |
1940 | (or (math-vectorp h) | |
1941 | (math-reject-arg h "*Holidays variable must be a vector")) | |
1942 | (while (setq h (cdr h)) | |
1943 | (cond ((or (and (eq (car-safe (car h)) 'date) | |
1944 | (integerp (nth 1 (car h)))) | |
1945 | (and (eq (car-safe (car h)) 'intv) | |
1946 | (eq (car-safe (nth 2 (car h))) 'date)) | |
1947 | (eq (car-safe (car h)) 'vec)) | |
1948 | (setq days (cons (car h) days))) | |
1949 | ((and (eq (car-safe (car h)) 'var) | |
1950 | (assq (nth 1 (car h)) wdnames)) | |
1951 | (setq weekdays (cons (cdr (assq (nth 1 (car h)) wdnames)) | |
1952 | weekdays))) | |
1953 | ((and (eq (car-safe (car h)) 'intv) | |
1954 | (eq (car-safe (nth 2 (car h))) 'hms) | |
1955 | (eq (car-safe (nth 3 (car h))) 'hms)) | |
1956 | (if hours | |
1957 | (math-reject-arg | |
1958 | (car h) "*Only one hours interval allowed in Holidays")) | |
1959 | (setq hours (math-div (car h) '(hms 24 0 0))) | |
1960 | (if (or (Math-lessp (nth 2 hours) 0) | |
1961 | (Math-lessp 1 (nth 3 hours))) | |
1962 | (math-reject-arg | |
1963 | (car h) "*Hours interval out of range")) | |
1964 | (setq hours (cons (nth 2 hours) | |
1965 | (math-sub (nth 3 hours) (nth 2 hours)))) | |
1966 | (if (Math-zerop (cdr hours)) | |
1967 | (math-reject-arg | |
1968 | (car h) "*Degenerate hours interval"))) | |
1969 | ((or (and (eq (car-safe (car h)) 'intv) | |
1970 | (Math-integerp (nth 2 (car h))) | |
1971 | (Math-integerp (nth 3 (car h)))) | |
1972 | (and (integerp (car h)) | |
1973 | (> (car h) 1900) (< (car h) 2100))) | |
1974 | (if limit | |
1975 | (math-reject-arg | |
1976 | (car h) "*Only one limit allowed in Holidays")) | |
1977 | (setq limit (calcFunc-vint (car h) '(intv 3 1 2737))) | |
1978 | (if (equal limit '(vec)) | |
1979 | (math-reject-arg (car h) "*Limit is out of range"))) | |
1980 | ((or (math-expr-contains (car h) '(var y var-y)) | |
1981 | (math-expr-contains (car h) '(var m var-m))) | |
1982 | (setq exprs (cons (car h) exprs))) | |
1983 | (t (math-reject-arg | |
1984 | (car h) "*Holidays must contain a vector of holidays")))) | |
1985 | (if (= (length weekdays) 7) | |
1986 | (math-reject-arg nil "*Too many weekend days")) | |
1987 | (setq math-holidays-cache (list (list -1) ; 0: days list | |
1988 | (list -1) ; 1: inverse-days list | |
1989 | nil ; 2: exprs | |
1990 | (sort weekdays '<) | |
1991 | (or limit '(intv 3 1 2737)) | |
1992 | nil ; 5: (lo.hi) expanded years | |
1993 | (cons exprs days) | |
1994 | hours) ; 7: business hours | |
1995 | math-holidays-cache-tag (calc-var-value 'var-Holidays)))) | |
1996 | (if date | |
1997 | (let ((year (calcFunc-year date)) | |
1998 | (limits (nth 5 math-holidays-cache)) | |
1999 | (done nil)) | |
2000 | (or (eq (calcFunc-in year (nth 4 math-holidays-cache)) 1) | |
2001 | (progn | |
2002 | (or (eq (car-safe date) 'date) (setq date (list 'date date))) | |
2003 | (math-reject-arg date "*Date is outside valid range"))) | |
2004 | (unwind-protect | |
2005 | (let ((days (nth 6 math-holidays-cache))) | |
2006 | (if days | |
98223359 | 2007 | (let ((math-sh-year nil)) ; see below |
136211a9 EZ |
2008 | (setcar (nthcdr 6 math-holidays-cache) nil) |
2009 | (math-setup-add-holidays (cons 'vec (cdr days))) | |
2010 | (setcar (nthcdr 2 math-holidays-cache) (car days)))) | |
2011 | (cond ((not (nth 2 math-holidays-cache)) | |
2012 | (setq done t) | |
2013 | nil) | |
2014 | ((not limits) | |
2015 | (setcar (nthcdr 5 math-holidays-cache) (cons year year)) | |
2016 | (math-setup-year-holidays year) | |
2017 | (setq done t)) | |
2018 | ((< year (car limits)) | |
2019 | (message "Computing holidays, %d .. %d" | |
2020 | year (1- (car limits))) | |
2021 | (calc-set-command-flag 'clear-message) | |
2022 | (while (< year (car limits)) | |
2023 | (setcar limits (1- (car limits))) | |
2024 | (math-setup-year-holidays (car limits))) | |
2025 | (setq done t)) | |
2026 | ((> year (cdr limits)) | |
2027 | (message "Computing holidays, %d .. %d" | |
2028 | (1+ (cdr limits)) year) | |
2029 | (calc-set-command-flag 'clear-message) | |
2030 | (while (> year (cdr limits)) | |
2031 | (setcdr limits (1+ (cdr limits))) | |
2032 | (math-setup-year-holidays (cdr limits))) | |
2033 | (setq done t)) | |
2034 | (t | |
2035 | (setq done t) | |
2036 | nil))) | |
bf77c646 | 2037 | (or done (setq math-holidays-cache-tag t)))))) |
136211a9 | 2038 | |
98223359 | 2039 | (defun math-setup-year-holidays (math-sh-year) |
136211a9 EZ |
2040 | (let ((exprs (nth 2 math-holidays-cache))) |
2041 | (while exprs | |
98223359 | 2042 | (let* ((var-y math-sh-year) |
136211a9 EZ |
2043 | (var-m nil) |
2044 | (expr (math-evaluate-expr (car exprs)))) | |
2045 | (if (math-expr-contains expr '(var m var-m)) | |
2046 | (let ((var-m 0)) | |
2047 | (while (<= (setq var-m (1+ var-m)) 12) | |
2048 | (math-setup-add-holidays (math-evaluate-expr expr)))) | |
2049 | (math-setup-add-holidays expr))) | |
bf77c646 | 2050 | (setq exprs (cdr exprs))))) |
136211a9 | 2051 | |
98223359 | 2052 | (defun math-setup-add-holidays (days) ; uses "math-sh-year" |
136211a9 EZ |
2053 | (cond ((eq (car-safe days) 'vec) |
2054 | (while (setq days (cdr days)) | |
2055 | (math-setup-add-holidays (car days)))) | |
2056 | ((eq (car-safe days) 'intv) | |
2057 | (let ((day (math-ceiling (nth 2 days)))) | |
2058 | (or (eq (calcFunc-in day days) 1) | |
2059 | (setq day (math-add day 1))) | |
2060 | (while (eq (calcFunc-in day days) 1) | |
2061 | (math-setup-add-holidays day) | |
2062 | (setq day (math-add day 1))))) | |
2063 | ((eq (car-safe days) 'date) | |
2064 | (math-setup-add-holidays (nth 1 days))) | |
2065 | ((eq days 0)) | |
2066 | ((integerp days) | |
98223359 | 2067 | (let ((b (math-to-business-day days math-sh-year))) |
136211a9 EZ |
2068 | (or (cdr b) ; don't register holidays twice! |
2069 | (let ((prev (car math-holidays-cache)) | |
2070 | (iprev (nth 1 math-holidays-cache))) | |
2071 | (while (and (cdr prev) (< (nth 1 prev) days)) | |
2072 | (setq prev (cdr prev) iprev (cdr iprev))) | |
2073 | (setcdr prev (cons days (cdr prev))) | |
2074 | (setcdr iprev (cons (car b) (cdr iprev))) | |
2075 | (while (setq iprev (cdr iprev)) | |
2076 | (setcar iprev (1- (car iprev)))))))) | |
2077 | ((Math-realp days) | |
2078 | (math-reject-arg (list 'date days) "*Invalid holiday value")) | |
2079 | (t | |
bf77c646 | 2080 | (math-reject-arg days "*Holiday formula failed to evaluate")))) |
136211a9 EZ |
2081 | |
2082 | ||
2083 | ||
2084 | ||
2085 | ;;;; Error forms. | |
2086 | ||
2087 | ;;; Build a standard deviation form. [X X X] | |
2088 | (defun math-make-sdev (x sigma) | |
2089 | (if (memq (car-safe x) '(date mod sdev intv vec)) | |
2090 | (math-reject-arg x 'realp)) | |
2091 | (if (memq (car-safe sigma) '(date mod sdev intv vec)) | |
2092 | (math-reject-arg sigma 'realp)) | |
2093 | (if (or (Math-negp sigma) (memq (car-safe sigma) '(cplx polar))) | |
2094 | (setq sigma (math-abs sigma))) | |
2095 | (if (and (Math-zerop sigma) (Math-scalarp x)) | |
2096 | x | |
bf77c646 | 2097 | (list 'sdev x sigma))) |
136211a9 | 2098 | (defun calcFunc-sdev (x sigma) |
bf77c646 | 2099 | (math-make-sdev x sigma)) |
136211a9 EZ |
2100 | |
2101 | ||
2102 | ||
2103 | ;;;; Modulo forms. | |
2104 | ||
2105 | (defun math-normalize-mod (a) | |
2106 | (let ((n (math-normalize (nth 1 a))) | |
2107 | (m (math-normalize (nth 2 a)))) | |
2108 | (if (and (math-anglep n) (math-anglep m) (math-posp m)) | |
2109 | (math-make-mod n m) | |
bf77c646 | 2110 | (math-normalize (list 'calcFunc-makemod n m))))) |
136211a9 EZ |
2111 | |
2112 | ;;; Build a modulo form. [N R R] | |
2113 | (defun math-make-mod (n m) | |
2114 | (setq calc-previous-modulo m) | |
2115 | (and n | |
2116 | (cond ((not (Math-anglep m)) | |
2117 | (math-reject-arg m 'anglep)) | |
2118 | ((not (math-posp m)) | |
2119 | (math-reject-arg m 'posp)) | |
2120 | ((Math-anglep n) | |
2121 | (if (or (Math-negp n) | |
2122 | (not (Math-lessp n m))) | |
2123 | (list 'mod (math-mod n m) m) | |
2124 | (list 'mod n m))) | |
2125 | ((memq (car n) '(+ - / vec neg)) | |
2126 | (math-normalize | |
2127 | (cons (car n) | |
2128 | (mapcar (function (lambda (x) (math-make-mod x m))) | |
2129 | (cdr n))))) | |
2130 | ((and (eq (car n) '*) (Math-anglep (nth 1 n))) | |
2131 | (math-mul (math-make-mod (nth 1 n) m) (nth 2 n))) | |
2132 | ((memq (car n) '(* ^ var calcFunc-subscr)) | |
2133 | (math-mul (math-make-mod 1 m) n)) | |
bf77c646 | 2134 | (t (math-reject-arg n 'anglep))))) |
136211a9 | 2135 | (defun calcFunc-makemod (n m) |
bf77c646 | 2136 | (math-make-mod n m)) |
136211a9 EZ |
2137 | |
2138 | ||
2139 | ||
2140 | ;;;; Interval forms. | |
2141 | ||
2142 | ;;; Build an interval form. [X S X X] | |
2143 | (defun math-make-intv (mask lo hi) | |
2144 | (if (memq (car-safe lo) '(cplx polar mod sdev intv vec)) | |
2145 | (math-reject-arg lo 'realp)) | |
2146 | (if (memq (car-safe hi) '(cplx polar mod sdev intv vec)) | |
2147 | (math-reject-arg hi 'realp)) | |
2148 | (or (eq (eq (car-safe lo) 'date) (eq (car-safe hi) 'date)) | |
2149 | (math-reject-arg (if (eq (car-safe lo) 'date) hi lo) 'datep)) | |
2150 | (if (and (or (Math-realp lo) (eq (car lo) 'date)) | |
2151 | (or (Math-realp hi) (eq (car hi) 'date))) | |
2152 | (let ((cmp (math-compare lo hi))) | |
2153 | (if (= cmp 0) | |
2154 | (if (= mask 3) | |
2155 | lo | |
2156 | (list 'intv mask lo hi)) | |
2157 | (if (> cmp 0) | |
2158 | (if (= mask 3) | |
2159 | (list 'intv 2 lo lo) | |
2160 | (list 'intv mask lo lo)) | |
2161 | (list 'intv mask lo hi)))) | |
bf77c646 | 2162 | (list 'intv mask lo hi))) |
136211a9 EZ |
2163 | (defun calcFunc-intv (mask lo hi) |
2164 | (if (math-messy-integerp mask) (setq mask (math-trunc mask))) | |
2165 | (or (natnump mask) (math-reject-arg mask 'fixnatnump)) | |
2166 | (or (<= mask 3) (math-reject-arg mask 'range)) | |
bf77c646 | 2167 | (math-make-intv mask lo hi)) |
136211a9 EZ |
2168 | |
2169 | (defun math-sort-intv (mask lo hi) | |
2170 | (if (Math-lessp hi lo) | |
2171 | (math-make-intv (aref [0 2 1 3] mask) hi lo) | |
bf77c646 | 2172 | (math-make-intv mask lo hi))) |
136211a9 EZ |
2173 | |
2174 | ||
2175 | ||
2176 | ||
2177 | (defun math-combine-intervals (a am b bm c cm d dm) | |
2178 | (let (res) | |
2179 | (if (= (setq res (math-compare a c)) 1) | |
2180 | (setq a c am cm) | |
2181 | (if (= res 0) | |
2182 | (setq am (or am cm)))) | |
2183 | (if (= (setq res (math-compare b d)) -1) | |
2184 | (setq b d bm dm) | |
2185 | (if (= res 0) | |
2186 | (setq bm (or bm dm)))) | |
bf77c646 | 2187 | (math-make-intv (+ (if am 2 0) (if bm 1 0)) a b))) |
136211a9 EZ |
2188 | |
2189 | ||
2190 | (defun math-div-mod (a b m) ; [R R R R] (Returns nil if no solution) | |
2191 | (and (Math-integerp a) (Math-integerp b) (Math-integerp m) | |
2192 | (let ((u1 1) (u3 b) (v1 0) (v3 m)) | |
2193 | (while (not (eq v3 0)) ; See Knuth sec 4.5.2, exercise 15 | |
2194 | (let* ((q (math-idivmod u3 v3)) | |
2195 | (t1 (math-sub u1 (math-mul v1 (car q))))) | |
2196 | (setq u1 v1 u3 v3 v1 t1 v3 (cdr q)))) | |
2197 | (let ((q (math-idivmod a u3))) | |
2198 | (and (eq (cdr q) 0) | |
bf77c646 | 2199 | (math-mod (math-mul (car q) u1) m)))))) |
136211a9 EZ |
2200 | |
2201 | (defun math-mod-intv (a b) | |
2202 | (let* ((q1 (math-floor (math-div (nth 2 a) b))) | |
2203 | (q2 (math-floor (math-div (nth 3 a) b))) | |
2204 | (m1 (math-sub (nth 2 a) (math-mul q1 b))) | |
2205 | (m2 (math-sub (nth 3 a) (math-mul q2 b)))) | |
2206 | (cond ((equal q1 q2) | |
2207 | (math-sort-intv (nth 1 a) m1 m2)) | |
2208 | ((and (math-equal-int (math-sub q2 q1) 1) | |
2209 | (math-zerop m2) | |
2210 | (memq (nth 1 a) '(0 2))) | |
2211 | (math-make-intv (nth 1 a) m1 b)) | |
2212 | (t | |
bf77c646 | 2213 | (math-make-intv 2 0 b))))) |
136211a9 | 2214 | |
98223359 | 2215 | ;; The variables math-exp-str and math-exp-pos are local to |
d55ebb63 | 2216 | ;; math-read-exprs in math-aent.el, but are used by |
98223359 JB |
2217 | ;; math-read-angle-brackets, which is called (indirectly) by |
2218 | ;; math-read-exprs. | |
2219 | (defvar math-exp-str) | |
2220 | (defvar math-exp-pos) | |
136211a9 EZ |
2221 | |
2222 | (defun math-read-angle-brackets () | |
97660b3e JB |
2223 | (let* ((last (or (math-check-for-commas t) (length math-exp-str))) |
2224 | (str (substring math-exp-str math-exp-pos last)) | |
136211a9 EZ |
2225 | (res |
2226 | (if (string-match "\\` *\\([a-zA-Z#][a-zA-Z0-9#]* *,? *\\)*:" str) | |
2227 | (let ((str1 (substring str 0 (1- (match-end 0)))) | |
2228 | (str2 (substring str (match-end 0))) | |
2229 | (calc-hashes-used 0)) | |
2230 | (setq str1 (math-read-expr (concat "[" str1 "]"))) | |
2231 | (if (eq (car-safe str1) 'error) | |
2232 | str1 | |
2233 | (setq str2 (math-read-expr str2)) | |
2234 | (if (eq (car-safe str2) 'error) | |
2235 | str2 | |
2236 | (append '(calcFunc-lambda) (cdr str1) (list str2))))) | |
2237 | (if (string-match "#" str) | |
2238 | (let ((calc-hashes-used 0)) | |
2239 | (and (setq str (math-read-expr str)) | |
2240 | (if (eq (car-safe str) 'error) | |
2241 | str | |
2242 | (append '(calcFunc-lambda) | |
2243 | (calc-invent-args calc-hashes-used) | |
2244 | (list str))))) | |
2245 | (math-parse-date str))))) | |
2246 | (if (stringp res) | |
2247 | (throw 'syntax res)) | |
2248 | (if (eq (car-safe res) 'error) | |
2249 | (throw 'syntax (nth 2 res))) | |
97660b3e | 2250 | (setq math-exp-pos (1+ last)) |
136211a9 | 2251 | (math-read-token) |
bf77c646 | 2252 | res)) |
136211a9 | 2253 | |
76216e5a JB |
2254 | (provide 'calc-forms) |
2255 | ||
bf77c646 | 2256 | ;;; calc-forms.el ends here |