From c90abc793cae72a682bfa53b638c5e0ba07c6644 Mon Sep 17 00:00:00 2001
From: "Mirar (Pontus Hagland)" <pike@sort.mirar.org>
Date: Fri, 20 Nov 1998 23:36:37 +0100
Subject: [PATCH] stardate added, parse function in calendar.gregorian (and
derivates)
Rev: lib/modules/Calendar.pmod/Gregorian.pmod:1.17
Rev: lib/modules/Calendar.pmod/Stardate.pmod:1.1
---
lib/modules/Calendar.pmod/Gregorian.pmod | 136 ++++++++++++++++++++++-
lib/modules/Calendar.pmod/Stardate.pmod | 106 ++++++++++++++++++
2 files changed, 240 insertions(+), 2 deletions(-)
create mode 100644 lib/modules/Calendar.pmod/Stardate.pmod
diff --git a/lib/modules/Calendar.pmod/Gregorian.pmod b/lib/modules/Calendar.pmod/Gregorian.pmod
index 3fbe43ea13..0cab581a4f 100644
--- a/lib/modules/Calendar.pmod/Gregorian.pmod
+++ b/lib/modules/Calendar.pmod/Gregorian.pmod
@@ -8,7 +8,7 @@
//! class
array(string) month_names=
- ({"January","February","March","April","May","June","July","August",
+ ({"January","February","Mars","April","May","June","July","August",
"September","October","November","December"});
array(string) week_day_names=
@@ -53,6 +53,11 @@ class Year
//-- standard methods -----------------------------------------------
+ string is()
+ {
+ return "year";
+ }
+
array(string) lesser()
{
return ({"month","week","day"});
@@ -282,6 +287,11 @@ class Month
//-- standard methods -----------------------------------------------
+ string is()
+ {
+ return "month";
+ }
+
array(string) lesser()
{
return ({"day"});
@@ -425,6 +435,11 @@ class Week
//-- standard methods -----------------------------------------------
+ string is()
+ {
+ return "week";
+ }
+
array(string) lesser()
{
return ({"day"});
@@ -592,6 +607,11 @@ class Day
//-- standard methods -----------------------------------------------
+ string is()
+ {
+ return "day";
+ }
+
array(string) greater()
{
return ({"year","month","week"});
@@ -602,7 +622,7 @@ class Day
return ({"hour"});
}
- void create(int ... arg)
+ void create(int|object ... arg)
{
if (!sizeof(arg))
{
@@ -610,6 +630,31 @@ class Day
y=1900+t->year;
d=t->yday;
}
+ else if (sizeof(arg)==1)
+ {
+ int jd;
+
+ if (objectp(arg[0]))
+ jd=(int)((arg[0]->julian_day||arg[0]->julian_day_f)());
+ else
+ jd=arg[0];
+
+ object yo;
+ y=(int)(jd/365.2425)-4712;
+ yo=vYear(y);
+ while (yo->julian_day(0)>jd) yo--;
+ write("y="+yo->number()+" yd="+yo->julian_day(0)+" nod="+yo->number_of_days()+"\n");
+ while (jd-yo->julian_day(0)>=yo->number_of_days())
+ {
+ yo++;
+ write("y="+yo->number()+" yd="+yo->julian_day(0)+" nod="+yo->number_of_days()+"\n");
+
+ }
+ y=yo->number();
+ write("y="+y+"\n");
+ d=jd-vYear(y)->julian_day(0);
+ write("d="+d+"\n");
+ }
else
{
y=arg[0];
@@ -783,6 +828,11 @@ class Hour
//-- standard methods -----------------------------------------------
+ string is()
+ {
+ return "hour";
+ }
+
array(string) greater()
{
return ({"day"});
@@ -959,6 +1009,11 @@ class Minute
//-- standard methods -----------------------------------------------
+ string is()
+ {
+ return "minute";
+ }
+
array(string) greater()
{
return ({"hour"});
@@ -1152,6 +1207,11 @@ class Second
//-- standarm setsoms -----------------------------------------------
+ string is()
+ {
+ return "second";
+ }
+
array(string) greater()
{
return ({"minute","hour","day","month","year"});
@@ -1331,4 +1391,76 @@ class Second
};
+//-- parse functions -----------------------------------------------
+
+//! method object parse(string fmt,string arg)
+//! parse a date, create relevant object
+//! fmt is in the format "abc%xdef..."
+//! where abc and def is matched, and %x is
+//! one of those time units:
+//! %Y absolute year
+//! %y year (70-99 is 1970-1999, 0-69 is 2000-2069)
+//! %M month (number, name or short name) (needs %y)
+//! %W week (needs %y)
+//! %D date (needs %y, %m)
+//! %a day (needs %y)
+//! %e weekday (needs %y, %w)
+//! %h hour (needs %d, %D or %W)
+//! %m minute (needs %h)
+//! %s second (needs %s)
+
+object parse(string fmt,string arg)
+{
+ string nfmt;
+ nfmt=replace(fmt,
+ ({"%Y","%y","%M","%W","%D","%a","%e","%h","%m","%s"}),
+ ({"%s","%s","%s","%s","%s","%s","%s","%s","%s","%s"}));
+ array q=Array.map(replace(fmt,"%%","")/"%",
+ lambda(string s){ return s[..0];})-({""});
+ array res=Array.map(array_sscanf(arg,nfmt),
+ lambda(string s)
+ {
+ if (s[0]>='0' && s[0]<='9')
+ return array_sscanf(s,"%d")[0];
+ else
+ return s;
+ });
+
+ if (sizeof(res)<sizeof(q))
+ return 0; // parse error
+
+ mapping m=mkmapping(q,res);
+
+ if (m->Y) m->year=Year(m->Y);
+ else if (m->y)
+ {
+ if (m->y<70) m->y+=2000;
+ else if (m->y<100) m->y+=1900;
+ m->year=Year(m->y);
+ }
+ else m->year=Year();
+
+ object low=m->year;
+
+ if (m->M)
+ m->month=low=m->year->month(m->M);
+ if (m->W)
+ m->week=low=m->year->week(m->W);
+
+ if (m->D)
+ m->day=low=(m->month||Month())->day(m->D);
+ else if (m->a)
+ m->day=low=m->year->day(m->a);
+ else if (m->e)
+ m->day=low=(m->week||Week())->day(m->e);
+
+ if (m->h)
+ low=m->hour=(m->day||Day())->hour(m->h);
+ if (m->m)
+ low=m->minute=(m->hour||Hour())->minute(m->m);
+ if (m->s)
+ low=m->second=(m->minute||Minute())->second(m->s);
+
+ return low;
+}
diff --git a/lib/modules/Calendar.pmod/Stardate.pmod b/lib/modules/Calendar.pmod/Stardate.pmod
new file mode 100644
index 0000000000..a91e964fca
--- /dev/null
+++ b/lib/modules/Calendar.pmod/Stardate.pmod
@@ -0,0 +1,106 @@
+//! submodule Stardate
+//! time unit: TNGDate
+
+//! class TNGDate
+//! implements ST:TNG stardates
+//! can be used as create argument to Day
+
+class TNGDate
+{
+ inherit Calendar._TimeUnit;
+
+ // 40759.5 2363-10-05 2584405
+ // 47391.2 2370-05-23 2586827
+
+ // 50893.5 2373-11-23 2588107
+
+ // 6631.7 ---------- 2422
+ // 10134.0 ---------- 3702
+ // 1000.0 ---------- 365.2425
+ // 0.0 - - 2569519
+#define TNGSTARPERJULIAN (1000.0/365.2425)
+
+//-- variables ------------------------------------------------------
+
+ float jd;
+ float tics;
+
+//-- standard methods -----------------------------------------------
+
+ void create(int|float|object ... day)
+ {
+ float jd;
+ if (!sizeof(day))
+ day=({Calendar.Gregorian.Second()});
+ else if (floatp(day[0]))
+ {
+ from_stardate(day[0]);
+ return;
+ }
+ if (!intp(day[0]))
+ {
+ object o=day[0];
+
+ if (o->julian_day || o->julian_day_f)
+ jd=(float)(o->julian_day_f||o->julian_day)();
+ else // dig
+ if (o->day) // larger
+ {
+ o=o->day(0);
+ if (o->julian_day_f)
+ jd=o->julian_day_f();
+ else if (o->julian_day)
+ jd=(float)o->julian_day();
+ else
+ ; // error, like
+ }
+ else // smaller
+ {
+ float z=1.0;
+ while (sizeof(o->greater()))
+ {
+ string name=o->is();
+ o=o[o->greater()[0]]();
+ z*=o["number_of_"+name+"s"]();
+ if (o->julian_day_f || o->julian_day)
+ {
+ jd=(o->julian_day||o->julian_day_f)()/z;
+ break;
+ }
+ }
+ }
+ }
+ else
+ jd=(float)day[0];
+ from_julian_day(jd);
+ }
+
+ static void from_stardate(float f)
+ {
+ tics=f;
+ jd=f/TNGSTARPERJULIAN+2569518.5;
+ }
+
+ static void from_julian_day(float f)
+ {
+ jd=f;
+ tics=(f-2569518.5)*TNGSTARPERJULIAN;
+ }
+
+//-- nonstandard methods --------------------------------------------
+
+ float number()
+ {
+ return tics;
+ }
+
+ int julian_day()
+ {
+ return (int)jd;
+ }
+
+ float julian_day_f()
+ {
+ return jd;
+ }
+}
--
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