mirror of
https://github.com/lcn2/calc.git
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cf419fb329
Added several conversion functions:
Added builtin functions to convert between degrees and
degrees, minutes and seconds under the config("mod")
round rules:
d2dms(degs, d, m, s [,rnd]) - given degs, compute d, m, s
d2dm(degs, d, m [,rnd]) - given degs, compute d, m
See help/d2dms and help/d2dm.
Example:
; print d2dms(360.321,deg=,min=,sec=), deg, min, sec;
0.321 0 19 15.6
; print d2dm(360.321,deg=,min=), deg, min;
0.321 0 19.26
Added builtin functions to convert between gradians and
gradians, minutes and seconds under the config("mod")
round rules:
g2gms(grads, g, m, s [,rnd]) - given grads, compute g, m, s
g2gm(grads, g, m [,rnd]) - given grads, compute g, m
See help/g2gms and help/g2gm.
Example:
; print g2gms(400.321,grad=,min=,sec=), grad, min, sec;
0.321 0 19 15.6
; print g2gm(400.321,grad=,min=), grad, min;
0.321 0 19.26
Added builtin functions to convert between hours and
hours, minutes and seconds under the config("mod")
round rules:
h2hms(hours, h, m, s [,rnd]) - given hours, compute h, m, s
h2hm(hours, h, m [,rnd]) - given hours, compute h, m
See help/h2hms and help/h2hm.
Example:
; print h2hms(24.321,hour=,min=,sec=), hour, min, sec;
0.321 0 19 15.6
; print h2hm(24.321,hour=,min=), hour, min;
0.321 0 19.26
In addtion:
Renumbered regression tests 3408 thru 3437, to 9102 thru 9131.
Updated Added hms.cal resource file to use h2hms() builtin.
Updated Added dms.cal resource file to use d2dms() builtin.
Fix minor typo in help/mod SYNOPSIS.
Fix minor typo in help/quo SYNOPSIS.
Added a few more examples to help/strcmp.
365 lines
7.0 KiB
Plaintext
365 lines
7.0 KiB
Plaintext
/*
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* hms - calculate in hours, minutes, and seconds
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*
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* Copyright (C) 2010,2021 Landon Curt Noll
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*
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* Calc is open software; you can redistribute it and/or modify it under
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* the terms of the version 2.1 of the GNU Lesser General Public License
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* as published by the Free Software Foundation.
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*
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* Calc is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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* Public License for more details.
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*
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* A copy of version 2.1 of the GNU Lesser General Public License is
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* distributed with calc under the filename COPYING-LGPL. You should have
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* received a copy with calc; if not, write to Free Software Foundation, Inc.
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Under source code control: 2010/09/01 17:14:55
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* File existed as early as: 2010
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*
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* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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*/
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obj hms {hour, min, sec};
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define hms(hour, min, sec)
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{
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local obj hms ans; /* return value */
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/* default missing args to 0 */
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if (isnull(sec)) {
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sec = 0;
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}
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if (isnull(min)) {
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min = 0;
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}
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/* load object */
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ans.hour = hour;
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ans.min = min;
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ans.sec = sec;
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/* return properly formed object */
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ans = fixhms(ans);
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return ans;
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}
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define hms_add(a, b)
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{
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local obj hms ans; /* return value */
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/* initialize value to 1st arg */
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if (istype(a, ans)) {
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/* 1st arg is hms object, load it */
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ans.hour = a.hour;
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ans.min = a.min;
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ans.sec = a.sec;
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} else {
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/* 1st arg is not hms, assume scalar hours */
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ans.hour = a;
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ans.min = 0;
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ans.sec = 0;
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}
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/* add value of 2nd arg */
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if (istype(b, ans)) {
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/* 2nd arg is hms object, add it */
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ans.hour += b.hour;
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ans.min += b.min;
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ans.sec += b.sec;
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} else {
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/* 2nd arg is not hms, add scalar hours */
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ans.hour += b;
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}
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/* return normalized result */
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ans = fixhms(ans);
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return ans;
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}
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define hms_neg(a)
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{
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local obj hms ans; /* return value */
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/* negate argument */
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if (istype(a, ans)) {
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/* 1st arg is hms object, load it */
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ans.hour = -a.hour;
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ans.min = -a.min;
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ans.sec = -a.sec;
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} else {
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/* 2nd arg is not hms, negate scalar hours */
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ans.hour = -a;
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ans.min = 0;
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ans.sec = 0;
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}
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/* return normalized result */
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ans = fixhms(ans);
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return ans;
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}
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define hms_sub(a, b)
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{
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local obj hms ans; /* return value */
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/* initialize value to 1st arg */
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if (istype(a, ans)) {
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/* 1st arg is hms object, load it */
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ans.hour = a.hour;
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ans.min = a.min;
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ans.sec = a.sec;
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} else {
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/* 1st arg is not hms, assume scalar hours */
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ans.hour = a;
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ans.min = 0;
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ans.sec = 0;
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}
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/* subtract value of 2nd arg */
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if (istype(b, ans)) {
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/* 2nd arg is hms object, subtract it */
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ans.hour -= b.hour;
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ans.min -= b.min;
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ans.sec -= b.sec;
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} else {
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/* 2nd arg is not hms, subtract scalar hours */
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ans.hour -= b;
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}
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/* return normalized result */
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ans = fixhms(ans);
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return ans;
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}
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define hms_mul(a, b)
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{
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local obj hms ans; /* return value */
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/* hms object multiplication */
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if (istype(a, ans) && istype(b, ans)) {
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ans.hour = hms_abs(a) * hms_abs(b);
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ans.min = 0;
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ans.sec = 0;
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/* scalar multiplication */
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} else if (istype(a, ans)) {
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ans.hour = a.hour * b;
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ans.min = a.min * b;
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ans.sec = a.sec * b;
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} else {
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ans.hour = b.hour * a;
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ans.min = b.min * a;
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ans.sec = b.sec * a;
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}
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/* return normalized result */
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ans = fixhms(ans);
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return ans;
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}
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define hms_print(a)
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{
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local obj hms ans; /* temp object for hms type testing */
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/* firewall - arg must be a hms object */
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if (! istype(a, ans)) {
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quit "hms_print called with non hms object";
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}
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/* print in hms form */
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print a.hour : ':' : a.min : ':' : a.sec :;
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}
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define hms_abs(a)
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{
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local obj hms ans; /* temp object for hms type testing */
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local hour; /* return scalar value */
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/* firewall - just absolute value non hms objects */
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if (! istype(a, ans)) {
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return abs(a);
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}
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/* compute hours */
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hour = a.hour + a.min / 60 + a.sec / 3600;
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/* return hours */
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return hour;
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}
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define hms_norm(a)
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{
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local obj hms ans; /* temp object for hms type testing */
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local hour; /* hours */
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/* firewall - arg must be a hms object */
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if (! istype(a, ans)) {
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quit "hms_norm called with non hms object";
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}
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/* square hours (norm is the square of absolute value */
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hour = hms_abs(a);
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/* return hours */
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return hour*hour;
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}
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define hms_test(a)
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{
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local obj hms ans; /* temp value */
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/* firewall - arg must be a hms object */
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if (! istype(a, ans)) {
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quit "hms_test called with non hms object";
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}
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/* return false of non-zero */
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ans = fixhms(a);
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if (ans.hour == 0 && ans.min == 0 && ans.sec == 0) {
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/* false */
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return 0;
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}
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/* true */
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return 1;
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}
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define hms_int(a)
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{
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local obj hms ans; /* return value */
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/* firewall - arg must be a hms object */
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if (! istype(a, ans)) {
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quit "hms_int called with non hms object";
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}
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/* normalize the argument */
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ans = fixhms(a);
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/* truncate to the nearest second */
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ans.sec = int(ans.sec);
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/* return value to the nearest second */
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return ans;
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}
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define hms_frac(a)
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{
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local obj hms ans; /* return value */
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/* firewall - arg must be a hms object */
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if (! istype(a, ans)) {
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quit "hms_frac called with non hms object";
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}
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/* normalize the argument */
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ans = fixhms(a);
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/* remove all but fractional seconds */
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ans.hour = 0;
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ans.min = 0;
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ans.sec = frac(ans.sec);
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/* return value to the second fraction */
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return ans;
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}
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define hms_rel(a,b)
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{
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local abs_a, abs_b; /* scalars of the arguments */
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/* compute scalars of the arguments */
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abs_a = hms_abs(a);
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abs_b = hms_abs(b);
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/* return the comparison */
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return cmp(abs_a, abs_b);
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}
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define hms_cmp(a,b)
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{
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local abs_a, abs_b; /* scalars of the arguments */
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/* compute scalars of the arguments */
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abs_a = hms_abs(a);
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abs_b = hms_abs(b);
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/* return the equality comparison */
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return (abs_a == abs_b);
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}
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define hms_inc(a)
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{
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local obj hms ans; /* return value */
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/* increment a hms object */
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if (istype(a, ans)) {
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ans = a;
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++ans.sec;
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/* return normalized result */
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ans = fixhms(ans);
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return ans;
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}
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/* increment a scalar */
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return a+1;
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}
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define hms_dec(a)
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{
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local obj hms ans; /* return value */
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/* decrement a hms object */
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if (istype(a, ans)) {
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ans = a;
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--ans.sec;
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/* return normalized result */
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ans = fixhms(ans);
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return ans;
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}
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/* decrement a scalar */
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return a-1;
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}
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define fixhms(a)
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{
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local obj hms ans; /* temp value */
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/* firewall */
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if (! istype(a, ans)) {
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quit "attempt to fix a non hms object";
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}
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/* use builtin h2hms function */
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h2hms(a.hour + a.min/60 + a.sec/3600, a.hour, a.min, a.sec),;
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/* return normalized result */
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return a;
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}
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if (config("resource_debug") & 3) {
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print "obj hms {hour, min, sec} defined";
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}
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