mirror of
https://github.com/lcn2/calc.git
synced 2025-08-16 01:03:29 +03:00
a31078bbec
Some folks might think: “you still use RCS”?!? And we will say, hey, at least we switched from SCCS to RCS back in … I think it was around 1994 ... at least we are keeping up! :-) :-) :-) Logs say that SCCS version 18 became RCS version 19 on 1994 March 18. RCS served us well. But now it is time to move on. And so we are switching to git. Calc releases produce a lot of file changes. In the 125 releases of calc since 1996, when I started managing calc releases, there have been 15473 file mods!
381 lines
7.3 KiB
Plaintext
381 lines
7.3 KiB
Plaintext
/*
|
|
* hms - calculate in hours, minutes, and seconds
|
|
*
|
|
* Copyright (C) 2010 Landon Curt Noll
|
|
*
|
|
* Calc is open software; you can redistribute it and/or modify it under
|
|
* the terms of the version 2.1 of the GNU Lesser General Public License
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* Calc is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
|
|
* Public License for more details.
|
|
*
|
|
* A copy of version 2.1 of the GNU Lesser General Public License is
|
|
* distributed with calc under the filename COPYING-LGPL. You should have
|
|
* received a copy with calc; if not, write to Free Software Foundation, Inc.
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* Under source code control: 2010/09/01 17:14:55
|
|
* File existed as early as: 2010
|
|
*
|
|
* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
|
|
*/
|
|
|
|
|
|
obj hms {hour, min, sec};
|
|
|
|
define hms(hour, min, sec)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* default missing args to 0 */
|
|
if (isnull(sec)) {
|
|
sec = 0;
|
|
}
|
|
if (isnull(min)) {
|
|
min = 0;
|
|
}
|
|
|
|
/* load object */
|
|
ans.hour = hour;
|
|
ans.min = min;
|
|
ans.sec = sec;
|
|
|
|
/* return properly formed object */
|
|
ans = fixhms(ans);
|
|
return ans;
|
|
}
|
|
|
|
|
|
define hms_add(a, b)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* initalize value to 1st arg */
|
|
if (istype(a, ans)) {
|
|
/* 1st arg is hms object, load it */
|
|
ans.hour = a.hour;
|
|
ans.min = a.min;
|
|
ans.sec = a.sec;
|
|
} else {
|
|
/* 1st arg is not hms, assume scalar hours */
|
|
ans.hour = a;
|
|
ans.min = 0;
|
|
ans.sec = 0;
|
|
}
|
|
|
|
/* add value of 2nd arg */
|
|
if (istype(b, ans)) {
|
|
/* 2nd arg is hms object, add it */
|
|
ans.hour += b.hour;
|
|
ans.min += b.min;
|
|
ans.sec += b.sec;
|
|
} else {
|
|
/* 2nd arg is not hms, add scalar hours */
|
|
ans.hour += b;
|
|
}
|
|
|
|
/* return normalized result */
|
|
ans = fixhms(ans);
|
|
return ans;
|
|
}
|
|
|
|
|
|
define hms_neg(a)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* negate argument */
|
|
if (istype(a, ans)) {
|
|
/* 1st arg is hms object, load it */
|
|
ans.hour = -a.hour;
|
|
ans.min = -a.min;
|
|
ans.sec = -a.sec;
|
|
} else {
|
|
/* 2nd arg is not hms, negate scalar hours */
|
|
ans.hour = -a;
|
|
ans.min = 0;
|
|
ans.sec = 0;
|
|
}
|
|
|
|
/* return normalized result */
|
|
ans = fixhms(ans);
|
|
return ans;
|
|
}
|
|
|
|
|
|
define hms_sub(a, b)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* initalize value to 1st arg */
|
|
if (istype(a, ans)) {
|
|
/* 1st arg is hms object, load it */
|
|
ans.hour = a.hour;
|
|
ans.min = a.min;
|
|
ans.sec = a.sec;
|
|
} else {
|
|
/* 1st arg is not hms, assume scalar hours */
|
|
ans.hour = a;
|
|
ans.min = 0;
|
|
ans.sec = 0;
|
|
}
|
|
|
|
/* subtract value of 2nd arg */
|
|
if (istype(b, ans)) {
|
|
/* 2nd arg is hms object, subtract it */
|
|
ans.hour -= b.hour;
|
|
ans.min -= b.min;
|
|
ans.sec -= b.sec;
|
|
} else {
|
|
/* 2nd arg is not hms, subtract scalar hours */
|
|
ans.hour -= b;
|
|
}
|
|
|
|
/* return normalized result */
|
|
ans = fixhms(ans);
|
|
return ans;
|
|
}
|
|
|
|
|
|
define hms_mul(a, b)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* hms object multiplication */
|
|
if (istype(a, ans) && istype(b, ans)) {
|
|
ans.hour = hms_abs(a) * hms_abs(b);
|
|
ans.min = 0;
|
|
ans.sec = 0;
|
|
|
|
/* scalar multiplication */
|
|
} else if (istype(a, ans)) {
|
|
ans.hour = a.hour * b;
|
|
ans.min = a.min * b;
|
|
ans.sec = a.sec * b;
|
|
} else {
|
|
ans.hour = b.hour * a;
|
|
ans.min = b.min * a;
|
|
ans.sec = b.sec * a;
|
|
}
|
|
|
|
/* return normalized result */
|
|
ans = fixhms(ans);
|
|
return ans;
|
|
}
|
|
|
|
|
|
define hms_print(a)
|
|
{
|
|
local obj hms ans; /* temp object for hms type testing */
|
|
|
|
/* firewall - arg must be a hms object */
|
|
if (! istype(a, ans)) {
|
|
quit "hms_print called with non hms object";
|
|
}
|
|
|
|
/* print in hms form */
|
|
print a.hour : ':' : a.min : ':' : a.sec :;
|
|
}
|
|
|
|
|
|
define hms_abs(a)
|
|
{
|
|
local obj hms ans; /* temp object for hms type testing */
|
|
local hour; /* return scalar value */
|
|
|
|
/* firewall - just absolute value non hms objects */
|
|
if (! istype(a, ans)) {
|
|
return abs(a);
|
|
}
|
|
|
|
/* compute hours */
|
|
hour = a.hour + a.min / 60 + a.sec / 3600;
|
|
|
|
/* return hours */
|
|
return hour;
|
|
}
|
|
|
|
|
|
define hms_norm(a)
|
|
{
|
|
local obj hms ans; /* temp object for hms type testing */
|
|
local hour; /* hours */
|
|
|
|
/* firewall - arg must be a hms object */
|
|
if (! istype(a, ans)) {
|
|
quit "hms_norm called with non hms object";
|
|
}
|
|
|
|
/* square hours (norm is the square of absolute value */
|
|
hour = hms_abs(a);
|
|
|
|
/* return hours */
|
|
return hour*hour;
|
|
}
|
|
|
|
|
|
define hms_test(a)
|
|
{
|
|
local obj hms ans; /* temp value */
|
|
|
|
/* firewall - arg must be a hms object */
|
|
if (! istype(a, ans)) {
|
|
quit "hms_test called with non hms object";
|
|
}
|
|
|
|
/* return false of non-zero */
|
|
ans = fixhms(a);
|
|
if (ans.hour == 0 && ans.min == 0 && ans.sec == 0) {
|
|
/* false */
|
|
return 0;
|
|
}
|
|
/* true */
|
|
return 1;
|
|
}
|
|
|
|
|
|
define hms_int(a)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* firewall - arg must be a hms object */
|
|
if (! istype(a, ans)) {
|
|
quit "hms_int called with non hms object";
|
|
}
|
|
|
|
/* normalize the argument */
|
|
ans = fixhms(a);
|
|
|
|
/* truncate to the nearest second */
|
|
ans.sec = int(ans.sec);
|
|
|
|
/* return value to the nearest second */
|
|
return ans;
|
|
}
|
|
|
|
|
|
define hms_frac(a)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* firewall - arg must be a hms object */
|
|
if (! istype(a, ans)) {
|
|
quit "hms_frac called with non hms object";
|
|
}
|
|
|
|
/* normalize the argument */
|
|
ans = fixhms(a);
|
|
|
|
/* remove all but fractional seconds */
|
|
ans.hour = 0;
|
|
ans.min = 0;
|
|
ans.sec = frac(ans.sec);
|
|
|
|
/* return value to the second fraction */
|
|
return ans;
|
|
}
|
|
|
|
|
|
define hms_rel(a,b)
|
|
{
|
|
local abs_a, abs_b; /* scalars of the arguments */
|
|
|
|
/* compute scalars of the arguments */
|
|
abs_a = hms_abs(a);
|
|
abs_b = hms_abs(b);
|
|
|
|
/* return the comparison */
|
|
return cmp(abs_a, abs_b);
|
|
}
|
|
|
|
|
|
define hms_cmp(a,b)
|
|
{
|
|
local abs_a, abs_b; /* scalars of the arguments */
|
|
|
|
/* compute scalars of the arguments */
|
|
abs_a = hms_abs(a);
|
|
abs_b = hms_abs(b);
|
|
|
|
/* return the equality comparison */
|
|
return (abs_a == abs_b);
|
|
}
|
|
|
|
|
|
define hms_inc(a)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* increment a hms object */
|
|
if (istype(a, ans)) {
|
|
ans = a;
|
|
++ans.sec;
|
|
|
|
/* return normalized result */
|
|
ans = fixhms(ans);
|
|
return ans;
|
|
}
|
|
|
|
/* increment a scalar */
|
|
return a+1;
|
|
}
|
|
|
|
|
|
define hms_dec(a)
|
|
{
|
|
local obj hms ans; /* return value */
|
|
|
|
/* decrement a hms object */
|
|
if (istype(a, ans)) {
|
|
ans = a;
|
|
--ans.sec;
|
|
|
|
/* return normalized result */
|
|
ans = fixhms(ans);
|
|
return ans;
|
|
}
|
|
|
|
/* decrement a scalar */
|
|
return a-1;
|
|
}
|
|
|
|
|
|
define fixhms(a)
|
|
{
|
|
local obj hms ans; /* temp value */
|
|
|
|
/* firewall */
|
|
if (! istype(a, ans)) {
|
|
quit "attempt to fix a non hms object";
|
|
}
|
|
|
|
/* force minutes to be intergral */
|
|
a.min += frac(a.hour) * 60;
|
|
a.hour = int(a.hour);
|
|
|
|
/* force hours to be intergral */
|
|
a.sec += frac(a.min) * 60;
|
|
a.min = int(a.min);
|
|
|
|
/* carry excess seconds into minutes */
|
|
a.min += a.sec // 60;
|
|
a.sec %= 60;
|
|
|
|
/* carry excess minutes into hours */
|
|
a.hour += a.min // 60;
|
|
a.min %= 60;
|
|
|
|
/* round hours by day */
|
|
a.hour %= 24;
|
|
|
|
/* return normalized result */
|
|
return a;
|
|
}
|
|
|
|
if (config("resource_debug") & 3) {
|
|
print "obj hms {hour, min, sec} defined";
|
|
}
|