Class: Date
Direct Known Subclasses
Defined Under Namespace
Classes: Infinity
Constant Summary collapse
- MONTHNAMES =
An array of stirng of full month name in English. The first element is nil.
mk_ary_of_str(13, monthnames)
- ABBR_MONTHNAMES =
An array of string of abbreviated month name in English. The first element is nil.
mk_ary_of_str(13, abbr_monthnames)
- DAYNAMES =
An array of string of full name of days of the week in English. The first is "Sunday".
mk_ary_of_str(7, daynames)
- ABBR_DAYNAMES =
An array of string of abbreviated day name in English. The first is "Sun".
mk_ary_of_str(7, abbr_daynames)
- ITALY =
The Julian day number of the day of calendar reform for Italy and some catholic countries.
INT2FIX(ITALY)
- ENGLAND =
The Julian day number of the day of calendar reform for England and her colonies.
INT2FIX(ENGLAND)
- JULIAN =
The Julian day number of the day of calendar reform for the proleptic Julian calendar
DBL2NUM(JULIAN)
- GREGORIAN =
The Julian day number of the day of calendar reform for the proleptic Gregorian calendar
DBL2NUM(GREGORIAN)
Class Method Summary collapse
-
._httpdate(string) ⇒ Hash
Returns a hash of parsed elements.
-
._iso8601(string) ⇒ Hash
Returns a hash of parsed elements.
-
._jisx0301(string) ⇒ Hash
Returns a hash of parsed elements.
-
._parse(string[, comp = true]) ⇒ Hash
Parses the given representation of date and time, and returns a hash of parsed elements.
-
._rfc2822 ⇒ Object
Returns a hash of parsed elements.
-
._rfc3339(string) ⇒ Hash
Returns a hash of parsed elements.
-
._rfc822 ⇒ Object
Returns a hash of parsed elements.
-
._strptime(string[, format = '%F']) ⇒ Hash
Parses the given representation of date and time with the given template, and returns a hash of parsed elements.
-
._xmlschema(string) ⇒ Hash
Returns a hash of parsed elements.
-
.civil ⇒ Object
Creates a date object denoting the given calendar date.
-
.commercial([cwyear = -4712[, cweek=1[, cwday=1[, start=Date::ITALY]]]]) ⇒ Object
Creates a date object denoting the given week date.
-
.gregorian_leap? ⇒ Boolean
Returns true if the given year is a leap year of the proleptic Gregorian calendar.
-
.httpdate(string = 'Mon, 01 Jan -4712 00:00:00 GMT'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some RFC 2616 format.
-
.iso8601(string = '-4712-01-01'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical ISO 8601 formats.
-
.jd([jd = 0[, start=Date::ITALY]]) ⇒ Object
Creates a date object denoting the given chronological Julian day number.
-
.jisx0301(string = '-4712-01-01'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical JIS X 0301 formats.
-
.julian_leap?(year) ⇒ Boolean
Returns true if the given year is a leap year of the proleptic Julian calendar.
-
.leap? ⇒ Boolean
Returns true if the given year is a leap year of the proleptic Gregorian calendar.
-
.new ⇒ Object
Creates a date object denoting the given calendar date.
-
.ordinal([year = -4712[, yday=1[, start=Date::ITALY]]]) ⇒ Object
Creates a date object denoting the given ordinal date.
-
.parse(string = '-4712-01-01'[, comp=true[, start=ITALY]]) ⇒ Object
Parses the given representation of date and time, and creates a date object.
-
.rfc2822 ⇒ Object
Creates a new Date object by parsing from a string according to some typical RFC 2822 formats.
-
.rfc3339(string = '-4712-01-01T00:00:00+00:00'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical RFC 3339 formats.
-
.rfc822 ⇒ Object
Creates a new Date object by parsing from a string according to some typical RFC 2822 formats.
-
.strptime([string = '-4712-01-01'[, format='%F'[, start=ITALY]]]) ⇒ Object
Parses the given representation of date and time with the given template, and creates a date object.
-
.today([start = Date::ITALY]) ⇒ Object
For example:.
-
.valid_civil? ⇒ Boolean
Returns true if the given calendar date is valid, and false if not.
-
.valid_commercial?(cwyear, cweek, cwday[, start = Date::ITALY]) ⇒ Boolean
Returns true if the given week date is valid, and false if not.
-
.valid_date? ⇒ Boolean
Returns true if the given calendar date is valid, and false if not.
-
.valid_jd?(jd[, start = Date::ITALY]) ⇒ Boolean
Just returns true.
-
.valid_ordinal?(year, yday[, start = Date::ITALY]) ⇒ Boolean
Returns true if the given ordinal date is valid, and false if not.
-
.xmlschema(string = '-4712-01-01'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical XML Schema formats.
Instance Method Summary collapse
-
#+(other) ⇒ Object
Returns a date object pointing other days after self.
-
#-(other) ⇒ Object
Returns the difference between the two dates if the other is a date object.
-
#<<(n) ⇒ Object
Returns a date object pointing n months before self.
-
#<=>(other) ⇒ -1, ...
Compares the two dates and returns -1, zero, 1 or nil.
-
#===(other) ⇒ Boolean
Returns true if they are the same day.
-
#>>(n) ⇒ Object
Returns a date object pointing n months after self.
-
#ajd ⇒ Object
Returns the astronomical Julian day number.
-
#amjd ⇒ Object
Returns the astronomical modified Julian day number.
-
#asctime ⇒ Object
Returns a string in asctime(3) format (but without "n0" at the end).
-
#ctime ⇒ Object
Returns a string in asctime(3) format (but without "n0" at the end).
-
#cwday ⇒ Fixnum
Returns the day of calendar week (1-7, Monday is 1).
-
#cweek ⇒ Fixnum
Returns the calendar week number (1-53).
-
#cwyear ⇒ Integer
Returns the calendar week based year.
-
#day ⇒ Object
Returns the day of the month (1-31).
-
#day_fraction ⇒ Object
Returns the fractional part of the day.
-
#downto ⇒ Object
This method is equivalent to step(min, -1){|date| ...}.
-
#england ⇒ Object
This method is equivalent to new_start(Date::ENGLAND).
-
#eql? ⇒ Boolean
:nodoc:.
-
#friday? ⇒ Boolean
Returns true if the date is Friday.
-
#gregorian ⇒ Object
This method is equivalent to new_start(Date::GREGORIAN).
-
#gregorian? ⇒ Boolean
Retunrs true if the date is on or after the day of calendar reform.
-
#hash ⇒ Object
:nodoc:.
-
#httpdate ⇒ String
This method is equivalent to strftime('%a, %d %b %Y %T GMT').
-
#initialize_copy ⇒ Object
:nodoc:.
-
#inspect ⇒ String
Returns the value as a string for inspection.
-
#iso8601 ⇒ Object
This method is equivalent to strftime('%F').
-
#italy ⇒ Object
This method is equivalent to new_start(Date::ITALY).
-
#jd ⇒ Integer
Returns the Julian day number.
-
#jisx0301 ⇒ String
Returns a string in a JIS X 0301 format.
-
#julian ⇒ Object
This method is equivalent to new_start(Date::JULIAN).
-
#julian? ⇒ Boolean
Retruns true if the date is before the day of calendar reform.
-
#ld ⇒ Integer
Returns the Lilian day number.
-
#leap? ⇒ Boolean
Returns true if the year is a leap year.
-
#marshal_dump ⇒ Object
:nodoc:.
-
#marshal_load ⇒ Object
:nodoc:.
-
#mday ⇒ Object
Returns the day of the month (1-31).
-
#mjd ⇒ Integer
Returns the modified Julian day number.
-
#mon ⇒ Object
Returns the month (1-12).
-
#monday? ⇒ Boolean
Returns true if the date is Monday.
-
#month ⇒ Object
Returns the month (1-12).
-
#new_start([start = Date::ITALY]) ⇒ Object
Duplicates self and resets its the day of calendar reform.
-
#next ⇒ Object
Returns a date object denoting the following day.
-
#next_day([n = 1]) ⇒ Object
This method is equivalent to d + n.
-
#next_month([n = 1]) ⇒ Object
This method is equivalent to d >> n.
-
#next_year([n = 1]) ⇒ Object
This method is equivalent to d >> (n * 12).
-
#prev_day([n = 1]) ⇒ Object
This method is equivalent to d - n.
-
#prev_month([n = 1]) ⇒ Object
This method is equivalent to d << n.
-
#prev_year([n = 1]) ⇒ Object
This method is equivalent to d << (n * 12).
-
#rfc2822 ⇒ Object
This method is equivalent to strftime('%a, %-d %b %Y %T %z').
-
#rfc3339 ⇒ String
This method is equivalent to strftime('%FT%T%:z').
-
#rfc822 ⇒ Object
This method is equivalent to strftime('%a, %-d %b %Y %T %z').
-
#saturday? ⇒ Boolean
Returns true if the date is Saturday.
-
#start ⇒ Float
Returns the Julian day number denoting the day of calendar reform.
-
#step ⇒ Object
Iterates evaluation of the given block, which takes a date object.
-
#strftime([format = '%F']) ⇒ String
Formats date according to the directives in the given format string.
-
#next ⇒ Object
Returns a date object denoting the following day.
-
#sunday? ⇒ Boolean
Returns true if the date is Sunday.
-
#thursday? ⇒ Boolean
Returns true if the date is Thursday.
-
#to_date ⇒ self
Returns self;.
-
#to_datetime ⇒ Object
Returns a DateTime object which denotes self.
-
#to_s ⇒ String
Returns a string in an ISO 8601 format (This method doesn't use the expanded representations).
-
#to_time ⇒ Time
Returns a Time object which denotes self.
-
#tuesday? ⇒ Boolean
Returns true if the date is Tuesday.
-
#upto ⇒ Object
This method is equivalent to step(max, 1){|date| ...}.
-
#wday ⇒ Fixnum
Returns the day of week (0-6, Sunday is zero).
-
#wednesday? ⇒ Boolean
Returns true if the date is Wednesday.
-
#xmlschema ⇒ Object
This method is equivalent to strftime('%F').
-
#yday ⇒ Fixnum
Returns the day of the year (1-366).
-
#year ⇒ Integer
Returns the year.
Class Method Details
._httpdate(string) ⇒ Hash
Returns a hash of parsed elements.
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# File 'date_core.c', line 4552
static VALUE
date_s__httpdate(VALUE klass, VALUE str)
{
return date__httpdate(str);
}
|
._iso8601(string) ⇒ Hash
Returns a hash of parsed elements.
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# File 'date_core.c', line 4375
static VALUE
date_s__iso8601(VALUE klass, VALUE str)
{
return date__iso8601(str);
}
|
._jisx0301(string) ⇒ Hash
Returns a hash of parsed elements.
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# File 'date_core.c', line 4597
static VALUE
date_s__jisx0301(VALUE klass, VALUE str)
{
return date__jisx0301(str);
}
|
._parse(string[, comp = true]) ⇒ Hash
Parses the given representation of date and time, and returns a hash of parsed elements.
If the optional second argument is true and the detected year is in the range "00" to "99", considers the year a 2-digit form and makes it full.
For example:
Date._parse('2001-02-03') #=> {:year=>2001, :mon=>2, :mday=>3}
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# File 'date_core.c', line 4313
static VALUE
date_s__parse(int argc, VALUE *argv, VALUE klass)
{
return date_s__parse_internal(argc, argv, klass);
}
|
._rfc2822(string) ⇒ Hash ._rfc822(string) ⇒ Hash
Returns a hash of parsed elements.
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# File 'date_core.c', line 4507
static VALUE
date_s__rfc2822(VALUE klass, VALUE str)
{
return date__rfc2822(str);
}
|
._rfc3339(string) ⇒ Hash
Returns a hash of parsed elements.
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# File 'date_core.c', line 4420
static VALUE
date_s__rfc3339(VALUE klass, VALUE str)
{
return date__rfc3339(str);
}
|
._rfc2822(string) ⇒ Hash ._rfc822(string) ⇒ Hash
Returns a hash of parsed elements.
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# File 'date_core.c', line 4507
static VALUE
date_s__rfc2822(VALUE klass, VALUE str)
{
return date__rfc2822(str);
}
|
._strptime(string[, format = '%F']) ⇒ Hash
Parses the given representation of date and time with the given template, and returns a hash of parsed elements.
For example:
Date._strptime('2001-02-03', '%Y-%m-%d')
#=> :mon=>2, :mday=>3
See also strptime(3) and strftime.
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# File 'date_core.c', line 4217
static VALUE
date_s__strptime(int argc, VALUE *argv, VALUE klass)
{
return date_s__strptime_internal(argc, argv, klass, "%F");
}
|
._xmlschema(string) ⇒ Hash
Returns a hash of parsed elements.
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# File 'date_core.c', line 4463
static VALUE
date_s__xmlschema(VALUE klass, VALUE str)
{
return date__xmlschema(str);
}
|
.civil([year = -4712[, month=1[, mday=1[, start=Date::ITALY]]]]) ⇒ Object .new([year = -4712[, month=1[, mday=1[, start=Date::ITALY]]]]) ⇒ Object
Creates a date object denoting the given calendar date.
In this class, BCE years are counted astronomically. Thus, the year before the year 1 is the year zero, and the year preceding the year zero is the year -1. The month and the day of month should be a negative or a positive number (as a relative month/day from the end of year/month when negative). They should not be zero.
The last argument should be a Julian day number which denotes the day of calendar reform. Date::ITALY (2299161=1582-10-15), Date::ENGLAND (2361222=1752-09-14), Date::GREGORIAN (the proleptic Gregorian calendar) and Date::JULIAN (the proleptic Julian calendar) can be specified as a day of calendar reform.
For example:
Date.new(2001) #=> #<Date: 2001-01-01 ...>
Date.new(2001,2,3) #=> #<Date: 2001-02-03 ...>
Date.new(2001,2,-1) #=> #<Date: 2001-02-28 ...>
See also jd.
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# File 'date_core.c', line 3360
static VALUE
date_s_civil(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vm, vd, vsg, y, fr, fr2, ret;
int m, d;
double sg;
rb_scan_args(argc, argv, "04", &vy, &vm, &vd, &vsg);
y = INT2FIX(-4712);
m = 1;
d = 1;
fr2 = INT2FIX(0);
sg = DEFAULT_SG;
switch (argc) {
case 4:
val2sg(vsg, sg);
case 3:
num2int_with_frac(d, positive_inf);
case 2:
m = NUM2INT(vm);
case 1:
y = vy;
}
if (guess_style(y, sg) < 0) {
VALUE nth;
int ry, rm, rd;
if (!valid_gregorian_p(y, m, d,
&nth, &ry,
&rm, &rd))
rb_raise(rb_eArgError, "invalid date");
ret = d_simple_new_internal(klass,
nth, 0,
sg,
ry, rm, rd,
HAVE_CIVIL);
}
else {
VALUE nth;
int ry, rm, rd, rjd, ns;
if (!valid_civil_p(y, m, d, sg,
&nth, &ry,
&rm, &rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
ret = d_simple_new_internal(klass,
nth, rjd,
sg,
ry, rm, rd,
HAVE_JD | HAVE_CIVIL);
}
add_frac();
return ret;
}
|
.commercial([cwyear = -4712[, cweek=1[, cwday=1[, start=Date::ITALY]]]]) ⇒ Object
Creates a date object denoting the given week date.
The week and the day of week should be a negative or a positive number (as a relative week/day from the end of year/week when negative). They should not be zero.
For example:
Date.commercial(2001) #=> #<Date: 2001-01-01 ...>
Date.commercial(2002) #=> #<Date: 2001-12-31 ...>
Date.commercial(2001,5,6) #=> #<Date: 2001-02-03 ...>
See also jd and new.
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# File 'date_core.c', line 3439
static VALUE
date_s_commercial(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vw, vd, vsg, y, fr, fr2, ret;
int w, d;
double sg;
rb_scan_args(argc, argv, "04", &vy, &vw, &vd, &vsg);
y = INT2FIX(-4712);
w = 1;
d = 1;
fr2 = INT2FIX(0);
sg = DEFAULT_SG;
switch (argc) {
case 4:
val2sg(vsg, sg);
case 3:
num2int_with_frac(d, positive_inf);
case 2:
w = NUM2INT(vw);
case 1:
y = vy;
}
{
VALUE nth;
int ry, rw, rd, rjd, ns;
if (!valid_commercial_p(y, w, d, sg,
&nth, &ry,
&rw, &rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
ret = d_simple_new_internal(klass,
nth, rjd,
sg,
0, 0, 0,
HAVE_JD);
}
add_frac();
return ret;
}
|
.gregorian_leap?(year) ⇒ Boolean .leap?(year) ⇒ Boolean
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# File 'date_core.c', line 2906
static VALUE
date_s_gregorian_leap_p(VALUE klass, VALUE y)
{
VALUE nth;
int ry;
decode_year(y, -1, &nth, &ry);
return f_boolcast(c_gregorian_leap_p(ry));
}
|
.httpdate(string = 'Mon, 01 Jan -4712 00:00:00 GMT'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some RFC 2616 format.
For example:
Date.httpdate('Sat, 03 Feb 2001 00:00:00 GMT')
#=> #<Date: 2001-02-03 ...>
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# File 'date_core.c', line 4571
static VALUE
date_s_httpdate(int argc, VALUE *argv, VALUE klass)
{
VALUE str, sg;
rb_scan_args(argc, argv, "02", &str, &sg);
switch (argc) {
case 0:
str = rb_str_new2("Mon, 01 Jan -4712 00:00:00 GMT");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__httpdate(klass, str);
return d_new_by_frags(klass, hash, sg);
}
}
|
.iso8601(string = '-4712-01-01'[, start=ITALY]) ⇒ Object
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# File 'date_core.c', line 4394
static VALUE
date_s_iso8601(int argc, VALUE *argv, VALUE klass)
{
VALUE str, sg;
rb_scan_args(argc, argv, "02", &str, &sg);
switch (argc) {
case 0:
str = rb_str_new2("-4712-01-01");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__iso8601(klass, str);
return d_new_by_frags(klass, hash, sg);
}
}
|
.jd([jd = 0[, start=Date::ITALY]]) ⇒ Object
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# File 'date_core.c', line 3238
static VALUE
date_s_jd(int argc, VALUE *argv, VALUE klass)
{
VALUE vjd, vsg, jd, fr, fr2, ret;
double sg;
rb_scan_args(argc, argv, "02", &vjd, &vsg);
jd = INT2FIX(0);
fr2 = INT2FIX(0);
sg = DEFAULT_SG;
switch (argc) {
case 2:
val2sg(vsg, sg);
case 1:
num2num_with_frac(jd, positive_inf);
}
{
VALUE nth;
int rjd;
decode_jd(jd, &nth, &rjd);
ret = d_simple_new_internal(klass,
nth, rjd,
sg,
0, 0, 0,
HAVE_JD);
}
add_frac();
return ret;
}
|
.jisx0301(string = '-4712-01-01'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical JIS X 0301 formats.
For example:
Date.jisx0301('H13.02.03') #=> #<Date: 2001-02-03 ...>
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# File 'date_core.c', line 4614
static VALUE
date_s_jisx0301(int argc, VALUE *argv, VALUE klass)
{
VALUE str, sg;
rb_scan_args(argc, argv, "02", &str, &sg);
switch (argc) {
case 0:
str = rb_str_new2("-4712-01-01");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__jisx0301(klass, str);
return d_new_by_frags(klass, hash, sg);
}
}
|
.julian_leap?(year) ⇒ Boolean
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# File 'date_core.c', line 2883
static VALUE
date_s_julian_leap_p(VALUE klass, VALUE y)
{
VALUE nth;
int ry;
decode_year(y, +1, &nth, &ry);
return f_boolcast(c_julian_leap_p(ry));
}
|
.gregorian_leap?(year) ⇒ Boolean .leap?(year) ⇒ Boolean
Returns true if the given year is a leap year of the proleptic Gregorian calendar.
For example:
Date.gregorian_leap?(1900) #=> false
Date.gregorian_leap?(2000) #=> true
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# File 'date_core.c', line 2906
static VALUE
date_s_gregorian_leap_p(VALUE klass, VALUE y)
{
VALUE nth;
int ry;
decode_year(y, -1, &nth, &ry);
return f_boolcast(c_gregorian_leap_p(ry));
}
|
.civil([year = -4712[, month=1[, mday=1[, start=Date::ITALY]]]]) ⇒ Object .new([year = -4712[, month=1[, mday=1[, start=Date::ITALY]]]]) ⇒ Object
Creates a date object denoting the given calendar date.
In this class, BCE years are counted astronomically. Thus, the year before the year 1 is the year zero, and the year preceding the year zero is the year -1. The month and the day of month should be a negative or a positive number (as a relative month/day from the end of year/month when negative). They should not be zero.
The last argument should be a Julian day number which denotes the day of calendar reform. Date::ITALY (2299161=1582-10-15), Date::ENGLAND (2361222=1752-09-14), Date::GREGORIAN (the proleptic Gregorian calendar) and Date::JULIAN (the proleptic Julian calendar) can be specified as a day of calendar reform.
For example:
Date.new(2001) #=> #<Date: 2001-01-01 ...>
Date.new(2001,2,3) #=> #<Date: 2001-02-03 ...>
Date.new(2001,2,-1) #=> #<Date: 2001-02-28 ...>
See also jd.
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# File 'date_core.c', line 3360
static VALUE
date_s_civil(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vm, vd, vsg, y, fr, fr2, ret;
int m, d;
double sg;
rb_scan_args(argc, argv, "04", &vy, &vm, &vd, &vsg);
y = INT2FIX(-4712);
m = 1;
d = 1;
fr2 = INT2FIX(0);
sg = DEFAULT_SG;
switch (argc) {
case 4:
val2sg(vsg, sg);
case 3:
num2int_with_frac(d, positive_inf);
case 2:
m = NUM2INT(vm);
case 1:
y = vy;
}
if (guess_style(y, sg) < 0) {
VALUE nth;
int ry, rm, rd;
if (!valid_gregorian_p(y, m, d,
&nth, &ry,
&rm, &rd))
rb_raise(rb_eArgError, "invalid date");
ret = d_simple_new_internal(klass,
nth, 0,
sg,
ry, rm, rd,
HAVE_CIVIL);
}
else {
VALUE nth;
int ry, rm, rd, rjd, ns;
if (!valid_civil_p(y, m, d, sg,
&nth, &ry,
&rm, &rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
ret = d_simple_new_internal(klass,
nth, rjd,
sg,
ry, rm, rd,
HAVE_JD | HAVE_CIVIL);
}
add_frac();
return ret;
}
|
.ordinal([year = -4712[, yday=1[, start=Date::ITALY]]]) ⇒ Object
Creates a date object denoting the given ordinal date.
The day of year should be a negative or a positive number (as a relative day from the end of year when negative). It should not be zero.
For example:
Date.ordinal(2001) #=> #<Date: 2001-01-01 ...>
Date.ordinal(2001,34) #=> #<Date: 2001-02-03 ...>
Date.ordinal(2001,-1) #=> #<Date: 2001-12-31 ...>
See also jd and new.
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# File 'date_core.c', line 3290
static VALUE
date_s_ordinal(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vd, vsg, y, fr, fr2, ret;
int d;
double sg;
rb_scan_args(argc, argv, "03", &vy, &vd, &vsg);
y = INT2FIX(-4712);
d = 1;
fr2 = INT2FIX(0);
sg = DEFAULT_SG;
switch (argc) {
case 3:
val2sg(vsg, sg);
case 2:
num2int_with_frac(d, positive_inf);
case 1:
y = vy;
}
{
VALUE nth;
int ry, rd, rjd, ns;
if (!valid_ordinal_p(y, d, sg,
&nth, &ry,
&rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
ret = d_simple_new_internal(klass,
nth, rjd,
sg,
0, 0, 0,
HAVE_JD);
}
add_frac();
return ret;
}
|
.parse(string = '-4712-01-01'[, comp=true[, start=ITALY]]) ⇒ Object
Parses the given representation of date and time, and creates a date object.
If the optional second argument is true and the detected year is in the range "00" to "99", considers the year a 2-digit form and makes it full.
For example:
Date.parse('2001-02-03') #=> #<Date: 2001-02-03 ...>
Date.parse('20010203') #=> #<Date: 2001-02-03 ...>
Date.parse('3rd Feb 2001') #=> #<Date: 2001-02-03 ...>
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# File 'date_core.c', line 4336
static VALUE
date_s_parse(int argc, VALUE *argv, VALUE klass)
{
VALUE str, comp, sg;
rb_scan_args(argc, argv, "03", &str, &comp, &sg);
switch (argc) {
case 0:
str = rb_str_new2("-4712-01-01");
case 1:
comp = Qtrue;
case 2:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE argv2[2], hash;
argv2[0] = str;
argv2[1] = comp;
hash = date_s__parse(2, argv2, klass);
return d_new_by_frags(klass, hash, sg);
}
}
|
.rfc2822(string = 'Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) ⇒ Object .rfc822(string = 'Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical RFC 2822 formats.
For example:
Date.rfc2822('Sat, 3 Feb 2001 00:00:00 +0000')
#=> #<Date: 2001-02-03 ...>
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# File 'date_core.c', line 4526
static VALUE
date_s_rfc2822(int argc, VALUE *argv, VALUE klass)
{
VALUE str, sg;
rb_scan_args(argc, argv, "02", &str, &sg);
switch (argc) {
case 0:
str = rb_str_new2("Mon, 1 Jan -4712 00:00:00 +0000");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__rfc2822(klass, str);
return d_new_by_frags(klass, hash, sg);
}
}
|
.rfc3339(string = '-4712-01-01T00:00:00+00:00'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical RFC 3339 formats.
For example:
Date.rfc3339('2001-02-03T04:05:06+07:00') #=> #<Date: 2001-02-03 ...>
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# File 'date_core.c', line 4437
static VALUE
date_s_rfc3339(int argc, VALUE *argv, VALUE klass)
{
VALUE str, sg;
rb_scan_args(argc, argv, "02", &str, &sg);
switch (argc) {
case 0:
str = rb_str_new2("-4712-01-01T00:00:00+00:00");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__rfc3339(klass, str);
return d_new_by_frags(klass, hash, sg);
}
}
|
.rfc2822(string = 'Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) ⇒ Object .rfc822(string = 'Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) ⇒ Object
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# File 'date_core.c', line 4526
static VALUE
date_s_rfc2822(int argc, VALUE *argv, VALUE klass)
{
VALUE str, sg;
rb_scan_args(argc, argv, "02", &str, &sg);
switch (argc) {
case 0:
str = rb_str_new2("Mon, 1 Jan -4712 00:00:00 +0000");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__rfc2822(klass, str);
return d_new_by_frags(klass, hash, sg);
}
}
|
.strptime([string = '-4712-01-01'[, format='%F'[, start=ITALY]]]) ⇒ Object
Parses the given representation of date and time with the given template, and creates a date object.
For example:
Date.strptime('2001-02-03', '%Y-%m-%d') #=> #<Date: 2001-02-03 ...>
Date.strptime('03-02-2001', '%d-%m-%Y') #=> #<Date: 2001-02-03 ...>
Date.strptime('2001-034', '%Y-%j') #=> #<Date: 2001-02-03 ...>
Date.strptime('2001-W05-6', '%G-W%V-%u') #=> #<Date: 2001-02-03 ...>
Date.strptime('2001 04 6', '%Y %U %w') #=> #<Date: 2001-02-03 ...>
Date.strptime('2001 05 6', '%Y %W %u') #=> #<Date: 2001-02-03 ...>
Date.strptime('sat3feb01', '%a%d%b%y') #=> #<Date: 2001-02-03 ...>
See also strptime(3) and strftime.
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# File 'date_core.c', line 4242
static VALUE
date_s_strptime(int argc, VALUE *argv, VALUE klass)
{
VALUE str, fmt, sg;
rb_scan_args(argc, argv, "03", &str, &fmt, &sg);
switch (argc) {
case 0:
str = rb_str_new2("-4712-01-01");
case 1:
fmt = rb_str_new2("%F");
case 2:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE argv2[2], hash;
argv2[0] = str;
argv2[1] = fmt;
hash = date_s__strptime(2, argv2, klass);
return d_new_by_frags(klass, hash, sg);
}
}
|
.today([start = Date::ITALY]) ⇒ Object
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# File 'date_core.c', line 3617
static VALUE
date_s_today(int argc, VALUE *argv, VALUE klass)
{
VALUE vsg, nth, ret;
double sg;
time_t t;
struct tm tm;
int y, ry, m, d;
rb_scan_args(argc, argv, "01", &vsg);
if (argc < 1)
sg = DEFAULT_SG;
else
val2sg(vsg, sg);
if (time(&t) == -1)
rb_sys_fail("time");
tzset();
if (!localtime_r(&t, &tm))
rb_sys_fail("localtime");
y = tm.tm_year + 1900;
m = tm.tm_mon + 1;
d = tm.tm_mday;
decode_year(INT2FIX(y), -1, &nth, &ry);
ret = d_simple_new_internal(klass,
nth, 0,
GREGORIAN,
ry, m, d,
HAVE_CIVIL);
{
get_d1(ret);
set_sg(dat, sg);
}
return ret;
}
|
.valid_civil?(year, month, mday[, start = Date::ITALY]) ⇒ Boolean .valid_date?(year, month, mday[, start = Date::ITALY]) ⇒ Boolean
Returns true if the given calendar date is valid, and false if not.
For example:
Date.valid_date?(2001,2,3) #=> true
Date.valid_date?(2001,2,29) #=> false
See also jd and civil.
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# File 'date_core.c', line 2531
static VALUE
date_s_valid_civil_p(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vm, vd, vsg;
VALUE argv2[4];
rb_scan_args(argc, argv, "31", &vy, &vm, &vd, &vsg);
argv2[0] = vy;
argv2[1] = vm;
argv2[2] = vd;
if (argc < 4)
argv2[3] = INT2FIX(DEFAULT_SG);
else
argv2[3] = vsg;
if (NIL_P(valid_civil_sub(4, argv2, klass, 0)))
return Qfalse;
return Qtrue;
}
|
.valid_commercial?(cwyear, cweek, cwday[, start = Date::ITALY]) ⇒ Boolean
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# File 'date_core.c', line 2698
static VALUE
date_s_valid_commercial_p(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vw, vd, vsg;
VALUE argv2[4];
rb_scan_args(argc, argv, "31", &vy, &vw, &vd, &vsg);
argv2[0] = vy;
argv2[1] = vw;
argv2[2] = vd;
if (argc < 4)
argv2[3] = INT2FIX(DEFAULT_SG);
else
argv2[3] = vsg;
if (NIL_P(valid_commercial_sub(4, argv2, klass, 0)))
return Qfalse;
return Qtrue;
}
|
.valid_civil?(year, month, mday[, start = Date::ITALY]) ⇒ Boolean .valid_date?(year, month, mday[, start = Date::ITALY]) ⇒ Boolean
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# File 'date_core.c', line 2531
static VALUE
date_s_valid_civil_p(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vm, vd, vsg;
VALUE argv2[4];
rb_scan_args(argc, argv, "31", &vy, &vm, &vd, &vsg);
argv2[0] = vy;
argv2[1] = vm;
argv2[2] = vd;
if (argc < 4)
argv2[3] = INT2FIX(DEFAULT_SG);
else
argv2[3] = vsg;
if (NIL_P(valid_civil_sub(4, argv2, klass, 0)))
return Qfalse;
return Qtrue;
}
|
.valid_jd?(jd[, start = Date::ITALY]) ⇒ Boolean
Just returns true. It's nonsense, but is for symmetry.
For example:
Date.valid_jd?(2451944) #=> true
See also jd.
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# File 'date_core.c', line 2440
static VALUE
date_s_valid_jd_p(int argc, VALUE *argv, VALUE klass)
{
VALUE vjd, vsg;
VALUE argv2[2];
rb_scan_args(argc, argv, "11", &vjd, &vsg);
argv2[0] = vjd;
if (argc < 2)
argv2[1] = INT2FIX(DEFAULT_SG);
else
argv2[1] = vsg;
if (NIL_P(valid_jd_sub(2, argv2, klass, 0)))
return Qfalse;
return Qtrue;
}
|
.valid_ordinal?(year, yday[, start = Date::ITALY]) ⇒ Boolean
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# File 'date_core.c', line 2614
static VALUE
date_s_valid_ordinal_p(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vd, vsg;
VALUE argv2[3];
rb_scan_args(argc, argv, "21", &vy, &vd, &vsg);
argv2[0] = vy;
argv2[1] = vd;
if (argc < 3)
argv2[2] = INT2FIX(DEFAULT_SG);
else
argv2[2] = vsg;
if (NIL_P(valid_ordinal_sub(3, argv2, klass, 0)))
return Qfalse;
return Qtrue;
}
|
.xmlschema(string = '-4712-01-01'[, start=ITALY]) ⇒ Object
Creates a new Date object by parsing from a string according to some typical XML Schema formats.
For example:
Date.xmlschema('2001-02-03') #=> #<Date: 2001-02-03 ...>
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# File 'date_core.c', line 4480
static VALUE
date_s_xmlschema(int argc, VALUE *argv, VALUE klass)
{
VALUE str, sg;
rb_scan_args(argc, argv, "02", &str, &sg);
switch (argc) {
case 0:
str = rb_str_new2("-4712-01-01");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__xmlschema(klass, str);
return d_new_by_frags(klass, hash, sg);
}
}
|
Instance Method Details
#+(other) ⇒ Object
Returns a date object pointing other days after self. The other should be a numeric value. If the other is flonum, assumes its precision is at most nanosecond.
For example:
Date.new(2001,2,3) + 1 #=> #<Date: 2001-02-04 ...>
DateTime.new(2001,2,3) + Rational(1,2)
#=> #<DateTime: 2001-02-03T12:00:00+00:00 ...>
DateTime.new(2001,2,3) + Rational(-1,2)
#=> #<DateTime: 2001-02-02T12:00:00+00:00 ...>
DateTime.jd(0,12) + DateTime.new(2001,2,3).ajd
#=> #<DateTime: 2001-02-03T00:00:00+00:00 ...>
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# File 'date_core.c', line 5549
static VALUE
d_lite_plus(VALUE self, VALUE other)
{
get_d1(self);
switch (TYPE(other)) {
case T_FIXNUM:
{
VALUE nth;
long t;
int jd;
nth = m_nth(dat);
t = FIX2LONG(other);
if (DIV(t, CM_PERIOD)) {
nth = f_add(nth, INT2FIX(DIV(t, CM_PERIOD)));
t = MOD(t, CM_PERIOD);
}
if (!t)
jd = m_jd(dat);
else {
jd = m_jd(dat) + (int)t;
if (jd < 0) {
nth = f_sub(nth, INT2FIX(1));
jd += CM_PERIOD;
}
else if (jd >= CM_PERIOD) {
nth = f_add(nth, INT2FIX(1));
jd -= CM_PERIOD;
}
}
if (simple_dat_p(dat))
return d_simple_new_internal(rb_obj_class(self),
nth, jd,
dat->s.sg,
0, 0, 0,
(dat->s.flags | HAVE_JD) &
~HAVE_CIVIL);
else
return d_complex_new_internal(rb_obj_class(self),
nth, jd,
dat->c.df, dat->c.sf,
dat->c.of, dat->c.sg,
0, 0, 0,
#ifndef USE_PACK
dat->c.hour,
dat->c.min,
dat->c.sec,
#else
EX_HOUR(dat->c.pc),
EX_MIN(dat->c.pc),
EX_SEC(dat->c.pc),
#endif
(dat->c.flags | HAVE_JD) &
~HAVE_CIVIL);
}
break;
case T_BIGNUM:
{
VALUE nth;
int jd, s;
if (f_positive_p(other))
s = +1;
else {
s = -1;
other = f_negate(other);
}
nth = f_idiv(other, INT2FIX(CM_PERIOD));
jd = FIX2INT(f_mod(other, INT2FIX(CM_PERIOD)));
if (s < 0) {
nth = f_negate(nth);
jd = -jd;
}
if (!jd)
jd = m_jd(dat);
else {
jd = m_jd(dat) + jd;
if (jd < 0) {
nth = f_sub(nth, INT2FIX(1));
jd += CM_PERIOD;
}
else if (jd >= CM_PERIOD) {
nth = f_add(nth, INT2FIX(1));
jd -= CM_PERIOD;
}
}
if (f_zero_p(nth))
nth = m_nth(dat);
else
nth = f_add(m_nth(dat), nth);
if (simple_dat_p(dat))
return d_simple_new_internal(rb_obj_class(self),
nth, jd,
dat->s.sg,
0, 0, 0,
(dat->s.flags | HAVE_JD) &
~HAVE_CIVIL);
else
return d_complex_new_internal(rb_obj_class(self),
nth, jd,
dat->c.df, dat->c.sf,
dat->c.of, dat->c.sg,
0, 0, 0,
#ifndef USE_PACK
dat->c.hour,
dat->c.min,
dat->c.sec,
#else
EX_HOUR(dat->c.pc),
EX_MIN(dat->c.pc),
EX_SEC(dat->c.pc),
#endif
(dat->c.flags | HAVE_JD) &
~HAVE_CIVIL);
}
break;
case T_FLOAT:
{
double jd, o, tmp;
int s, df;
VALUE nth, sf;
o = RFLOAT_VALUE(other);
if (o > 0)
s = +1;
else {
s = -1;
o = -o;
}
o = modf(o, &tmp);
if (!floor(tmp / CM_PERIOD)) {
nth = INT2FIX(0);
jd = (int)tmp;
}
else {
double i, f;
f = modf(tmp / CM_PERIOD, &i);
nth = f_floor(DBL2NUM(i));
jd = (int)(f * CM_PERIOD);
}
o *= DAY_IN_SECONDS;
o = modf(o, &tmp);
df = (int)tmp;
o *= SECOND_IN_NANOSECONDS;
sf = INT2FIX((int)round(o));
if (s < 0) {
jd = -jd;
df = -df;
sf = f_negate(sf);
}
if (f_zero_p(sf))
sf = m_sf(dat);
else {
sf = f_add(m_sf(dat), sf);
if (f_lt_p(sf, INT2FIX(0))) {
df -= 1;
sf = f_add(sf, INT2FIX(SECOND_IN_NANOSECONDS));
}
else if (f_ge_p(sf, INT2FIX(SECOND_IN_NANOSECONDS))) {
df += 1;
sf = f_sub(sf, INT2FIX(SECOND_IN_NANOSECONDS));
}
}
if (!df)
df = m_df(dat);
else {
df = m_df(dat) + df;
if (df < 0) {
jd -= 1;
df += DAY_IN_SECONDS;
}
else if (df >= DAY_IN_SECONDS) {
jd += 1;
df -= DAY_IN_SECONDS;
}
}
if (!jd)
jd = m_jd(dat);
else {
jd = m_jd(dat) + jd;
if (jd < 0) {
nth = f_sub(nth, INT2FIX(1));
jd += CM_PERIOD;
}
else if (jd >= CM_PERIOD) {
nth = f_add(nth, INT2FIX(1));
jd -= CM_PERIOD;
}
}
if (f_zero_p(nth))
nth = m_nth(dat);
else
nth = f_add(m_nth(dat), nth);
if (!df && f_zero_p(sf) && !m_of(dat))
return d_simple_new_internal(rb_obj_class(self),
nth, (int)jd,
m_sg(dat),
0, 0, 0,
(dat->s.flags | HAVE_JD) &
~(HAVE_CIVIL | HAVE_TIME |
COMPLEX_DAT));
else
return d_complex_new_internal(rb_obj_class(self),
nth, (int)jd,
df, sf,
m_of(dat), m_sg(dat),
0, 0, 0,
0, 0, 0,
(dat->c.flags |
HAVE_JD | HAVE_DF) &
~(HAVE_CIVIL | HAVE_TIME));
}
break;
default:
if (!k_numeric_p(other))
rb_raise(rb_eTypeError, "expected numeric");
other = f_to_r(other);
#ifdef CANONICALIZATION_FOR_MATHN
if (!k_rational_p(other))
return d_lite_plus(self, other);
#endif
/* fall through */
case T_RATIONAL:
{
VALUE nth, sf, t;
int jd, df, s;
if (wholenum_p(other))
return d_lite_plus(self, RRATIONAL(other)->num);
if (f_positive_p(other))
s = +1;
else {
s = -1;
other = f_negate(other);
}
nth = f_idiv(other, INT2FIX(CM_PERIOD));
t = f_mod(other, INT2FIX(CM_PERIOD));
jd = FIX2INT(f_idiv(t, INT2FIX(1)));
t = f_mod(t, INT2FIX(1));
t = f_mul(t, INT2FIX(DAY_IN_SECONDS));
df = FIX2INT(f_idiv(t, INT2FIX(1)));
t = f_mod(t, INT2FIX(1));
sf = f_mul(t, INT2FIX(SECOND_IN_NANOSECONDS));
if (s < 0) {
nth = f_negate(nth);
jd = -jd;
df = -df;
sf = f_negate(sf);
}
if (f_zero_p(sf))
sf = m_sf(dat);
else {
sf = f_add(m_sf(dat), sf);
if (f_lt_p(sf, INT2FIX(0))) {
df -= 1;
sf = f_add(sf, INT2FIX(SECOND_IN_NANOSECONDS));
}
else if (f_ge_p(sf, INT2FIX(SECOND_IN_NANOSECONDS))) {
df += 1;
sf = f_sub(sf, INT2FIX(SECOND_IN_NANOSECONDS));
}
}
if (!df)
df = m_df(dat);
else {
df = m_df(dat) + df;
if (df < 0) {
jd -= 1;
df += DAY_IN_SECONDS;
}
else if (df >= DAY_IN_SECONDS) {
jd += 1;
df -= DAY_IN_SECONDS;
}
}
if (!jd)
jd = m_jd(dat);
else {
jd = m_jd(dat) + jd;
if (jd < 0) {
nth = f_sub(nth, INT2FIX(1));
jd += CM_PERIOD;
}
else if (jd >= CM_PERIOD) {
nth = f_add(nth, INT2FIX(1));
jd -= CM_PERIOD;
}
}
if (f_zero_p(nth))
nth = m_nth(dat);
else
nth = f_add(m_nth(dat), nth);
if (!df && f_zero_p(sf) && !m_of(dat))
return d_simple_new_internal(rb_obj_class(self),
nth, jd,
m_sg(dat),
0, 0, 0,
(dat->s.flags | HAVE_JD) &
~(HAVE_CIVIL | HAVE_TIME |
COMPLEX_DAT));
else
return d_complex_new_internal(rb_obj_class(self),
nth, jd,
df, sf,
m_of(dat), m_sg(dat),
0, 0, 0,
0, 0, 0,
(dat->c.flags |
HAVE_JD | HAVE_DF) &
~(HAVE_CIVIL | HAVE_TIME));
}
break;
}
}
|
#-(other) ⇒ Object
Returns the difference between the two dates if the other is a date object. If the other is a numeric value, returns a date object pointing other days before self. If the other is flonum, assumes its precision is at most nanosecond.
For example:
Date.new(2001,2,3) - 1 #=> #<Date: 2001-02-02 ...>
DateTime.new(2001,2,3) - Rational(1,2)
#=> #<DateTime: 2001-02-02T12:00:00+00:00 ...>
Date.new(2001,2,3) - Date.new(2001)
#=> (33/1)
DateTime.new(2001,2,3) - DateTime.new(2001,2,2,12)
#=> (1/2)
5973 5974 5975 5976 5977 5978 5979 5980 5981 5982 5983 5984 5985 5986 5987 5988 5989 5990 5991 5992 |
# File 'date_core.c', line 5973
static VALUE
d_lite_minus(VALUE self, VALUE other)
{
if (k_date_p(other))
return minus_dd(self, other);
switch (TYPE(other)) {
case T_FIXNUM:
return d_lite_plus(self, LONG2NUM(-FIX2LONG(other)));
case T_FLOAT:
return d_lite_plus(self, DBL2NUM(-RFLOAT_VALUE(other)));
default:
if (!k_numeric_p(other))
rb_raise(rb_eTypeError, "expected numeric");
/* fall through */
case T_BIGNUM:
case T_RATIONAL:
return d_lite_plus(self, f_negate(other));
}
}
|
#<<(n) ⇒ Object
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# File 'date_core.c', line 6105
static VALUE
d_lite_lshift(VALUE self, VALUE other)
{
return d_lite_rshift(self, f_negate(other));
}
|
#<=>(other) ⇒ -1, ...
Compares the two dates and returns -1, zero, 1 or nil. The other should be a date object or a numeric value as an astronomical Julian day number.
For example:
Date.new(2001,2,3) <=> Date.new(2001,2,4) #=> -1
Date.new(2001,2,3) <=> Date.new(2001,2,3) #=> 0
Date.new(2001,2,3) <=> Date.new(2001,2,2) #=> 1
Date.new(2001,2,3) <=> Object.new #=> nil
Date.new(2001,2,3) <=> Rational(4903887,2)#=> 0
See also Comparable.
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# File 'date_core.c', line 6364
static VALUE
d_lite_cmp(VALUE self, VALUE other)
{
if (!k_date_p(other))
return cmp_gen(self, other);
{
get_d2(self, other);
if (!(simple_dat_p(adat) && simple_dat_p(bdat) &&
m_gregorian_p(adat) == m_gregorian_p(bdat)))
return cmp_dd(self, other);
if (have_jd_p(adat) &&
have_jd_p(bdat)) {
VALUE a_nth, b_nth;
int a_jd, b_jd;
a_nth = m_nth(adat);
b_nth = m_nth(bdat);
if (f_eqeq_p(a_nth, b_nth)) {
a_jd = m_jd(adat);
b_jd = m_jd(bdat);
if (a_jd == b_jd) {
return INT2FIX(0);
}
else if (a_jd < b_jd) {
return INT2FIX(-1);
}
else {
return INT2FIX(1);
}
}
else if (a_nth < b_nth) {
return INT2FIX(-1);
}
else {
return INT2FIX(1);
}
}
else {
#ifndef USE_PACK
VALUE a_nth, b_nth;
int a_year, b_year,
a_mon, b_mon,
a_mday, b_mday;
#else
VALUE a_nth, b_nth;
int a_year, b_year,
a_pd, b_pd;
#endif
a_nth = m_nth(adat);
b_nth = m_nth(bdat);
if (f_eqeq_p(a_nth, b_nth)) {
a_year = m_year(adat);
b_year = m_year(bdat);
if (a_year == b_year) {
#ifndef USE_PACK
a_mon = m_mon(adat);
b_mon = m_mon(bdat);
if (a_mon == b_mon) {
a_mday = m_mday(adat);
b_mday = m_mday(bdat);
if (a_mday == b_mday) {
return INT2FIX(0);
}
else if (a_mday < b_mday) {
return INT2FIX(-1);
}
else {
return INT2FIX(1);
}
}
else if (a_mon < b_mon) {
return INT2FIX(-1);
}
else {
return INT2FIX(1);
}
#else
a_pd = m_pc(adat);
b_pd = m_pc(bdat);
if (a_pd == b_pd) {
return INT2FIX(0);
}
else if (a_pd < b_pd) {
return INT2FIX(-1);
}
else {
return INT2FIX(1);
}
#endif
}
else if (a_year < b_year) {
return INT2FIX(-1);
}
else {
return INT2FIX(1);
}
}
else if (f_lt_p(a_nth, b_nth)) {
return INT2FIX(-1);
}
else {
return INT2FIX(1);
}
}
}
}
|
#===(other) ⇒ Boolean
Returns true if they are the same day.
For example:
Date.new(2001,2,3) === Date.new(2001,2,3)
#=> true
Date.new(2001,2,3) === Date.new(2001,2,4)
#=> false
DateTime.new(2001,2,3) === DateTime.new(2001,2,3,12)
#=> true
DateTime.new(2001,2,3) === DateTime.new(2001,2,3,0,0,0,'+24:00')
#=> true
DateTime.new(2001,2,3) === DateTime.new(2001,2,4,0,0,0,'+24:00')
#=> false
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# File 'date_core.c', line 6506
static VALUE
d_lite_equal(VALUE self, VALUE other)
{
if (!k_date_p(other))
return equal_gen(self, other);
{
get_d2(self, other);
if (!(m_gregorian_p(adat) == m_gregorian_p(bdat)))
return equal_gen(self, other);
if (have_jd_p(adat) &&
have_jd_p(bdat)) {
VALUE a_nth, b_nth;
int a_jd, b_jd;
a_nth = m_nth(adat);
b_nth = m_nth(bdat);
a_jd = m_local_jd(adat);
b_jd = m_local_jd(bdat);
if (f_eqeq_p(a_nth, b_nth) &&
a_jd == b_jd)
return Qtrue;
return Qfalse;
}
else {
#ifndef USE_PACK
VALUE a_nth, b_nth;
int a_year, b_year,
a_mon, b_mon,
a_mday, b_mday;
#else
VALUE a_nth, b_nth;
int a_year, b_year,
a_pd, b_pd;
#endif
a_nth = m_nth(adat);
b_nth = m_nth(bdat);
if (f_eqeq_p(a_nth, b_nth)) {
a_year = m_year(adat);
b_year = m_year(bdat);
if (a_year == b_year) {
#ifndef USE_PACK
a_mon = m_mon(adat);
b_mon = m_mon(bdat);
if (a_mon == b_mon) {
a_mday = m_mday(adat);
b_mday = m_mday(bdat);
if (a_mday == b_mday)
return Qtrue;
}
#else
/* mon and mday only */
a_pd = (m_pc(adat) >> MDAY_SHIFT);
b_pd = (m_pc(bdat) >> MDAY_SHIFT);
if (a_pd == b_pd) {
return Qtrue;
}
#endif
}
}
return Qfalse;
}
}
}
|
#>>(n) ⇒ Object
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# File 'date_core.c', line 6053
static VALUE
d_lite_rshift(VALUE self, VALUE other)
{
VALUE t, y, nth, rjd2;
int m, d, rjd;
double sg;
get_d1(self);
t = f_add3(f_mul(m_real_year(dat), INT2FIX(12)),
INT2FIX(m_mon(dat) - 1),
other);
if (FIXNUM_P(t)) {
long it = FIX2LONG(t);
y = LONG2NUM(DIV(it, 12));
it = MOD(it, 12);
m = (int)it + 1;
}
else {
y = f_idiv(t, INT2FIX(12));
t = f_mod(t, INT2FIX(12));
m = FIX2INT(t) + 1;
}
d = m_mday(dat);
sg = m_sg(dat);
while (1) {
int ry, rm, rd, ns;
if (valid_civil_p(y, m, d, sg,
&nth, &ry,
&rm, &rd, &rjd, &ns))
break;
if (--d < 1)
rb_raise(rb_eArgError, "invalid date");
}
encode_jd(nth, rjd, &rjd2);
return d_lite_plus(self, f_sub(rjd2, m_real_local_jd(dat)));
}
|
#ajd ⇒ Object
4802 4803 4804 4805 4806 4807 |
# File 'date_core.c', line 4802
static VALUE
d_lite_ajd(VALUE self)
{
get_d1(self);
return m_ajd(dat);
}
|
#amjd ⇒ Object
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# File 'date_core.c', line 4821
static VALUE
d_lite_amjd(VALUE self)
{
get_d1(self);
return m_amjd(dat);
}
|
#asctime ⇒ String #ctime ⇒ String
Returns a string in asctime(3) format (but without "n0" at the end). This method is equivalent to strftime('%c').
See also asctime(3) or ctime(3).
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# File 'date_core.c', line 7115
static VALUE
d_lite_asctime(VALUE self)
{
return strftimev("%a %b %e %H:%M:%S %Y", self, set_tmx);
}
|
#asctime ⇒ String #ctime ⇒ String
Returns a string in asctime(3) format (but without "n0" at the end). This method is equivalent to strftime('%c').
See also asctime(3) or ctime(3).
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# File 'date_core.c', line 7115
static VALUE
d_lite_asctime(VALUE self)
{
return strftimev("%a %b %e %H:%M:%S %Y", self, set_tmx);
}
|
#cwday ⇒ Fixnum
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# File 'date_core.c', line 5019
static VALUE
d_lite_cwday(VALUE self)
{
get_d1(self);
return INT2FIX(m_cwday(dat));
}
|
#cweek ⇒ Fixnum
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# File 'date_core.c', line 5002
static VALUE
d_lite_cweek(VALUE self)
{
get_d1(self);
return INT2FIX(m_cweek(dat));
}
|
#cwyear ⇒ Integer
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# File 'date_core.c', line 4985
static VALUE
d_lite_cwyear(VALUE self)
{
get_d1(self);
return m_real_cwyear(dat);
}
|
#mday ⇒ Fixnum #day ⇒ Fixnum
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# File 'date_core.c', line 4948
static VALUE
d_lite_mday(VALUE self)
{
get_d1(self);
return INT2FIX(m_mday(dat));
}
|
#day_fraction ⇒ Object
4965 4966 4967 4968 4969 4970 4971 4972 |
# File 'date_core.c', line 4965
static VALUE
d_lite_day_fraction(VALUE self)
{
get_d1(self);
if (simple_dat_p(dat))
return INT2FIX(0);
return m_fr(dat);
}
|
#downto(min) ⇒ Object #downto(min) {|date| ... } ⇒ self
This method is equivalent to step(min, -1){|date| ...}.
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# File 'date_core.c', line 6264
static VALUE
d_lite_downto(VALUE self, VALUE min)
{
VALUE date;
RETURN_ENUMERATOR(self, 1, &min);
date = self;
while (FIX2INT(d_lite_cmp(date, min)) >= 0) {
rb_yield(date);
date = d_lite_plus(date, INT2FIX(-1));
}
return self;
}
|
#england ⇒ Object
This method is equivalent to new_start(Date::ENGLAND).
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# File 'date_core.c', line 5453
static VALUE
d_lite_england(VALUE self)
{
return dup_obj_with_new_start(self, ENGLAND);
}
|
#eql? ⇒ Boolean
:nodoc:
6575 6576 6577 6578 6579 6580 6581 |
# File 'date_core.c', line 6575
static VALUE
d_lite_eql_p(VALUE self, VALUE other)
{
if (!k_date_p(other))
return Qfalse;
return f_zero_p(d_lite_cmp(self, other));
}
|
#friday? ⇒ Boolean
Returns true if the date is Friday.
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# File 'date_core.c', line 5130
static VALUE
d_lite_friday_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_wday(dat) == 5);
}
|
#gregorian ⇒ Object
This method is equivalent to new_start(Date::GREGORIAN).
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# File 'date_core.c', line 5477
static VALUE
d_lite_gregorian(VALUE self)
{
return dup_obj_with_new_start(self, GREGORIAN);
}
|
#gregorian? ⇒ Boolean
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# File 'date_core.c', line 5304
static VALUE
d_lite_gregorian_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_gregorian_p(dat));
}
|
#hash ⇒ Object
:nodoc:
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# File 'date_core.c', line 6584
static VALUE
d_lite_hash(VALUE self)
{
st_index_t v, h[4];
get_d1(self);
h[0] = m_nth(dat);
h[1] = m_jd(dat);
h[2] = m_df(dat);
h[3] = m_sf(dat);
v = rb_memhash(h, sizeof(h));
return LONG2FIX(v);
}
|
#httpdate ⇒ String
This method is equivalent to strftime('%a, %d %b %Y %T GMT'). See also RFC 2616.
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# File 'date_core.c', line 7166
static VALUE
d_lite_httpdate(VALUE self)
{
volatile VALUE dup = dup_obj_with_new_offset(self, 0);
return strftimev("%a, %d %b %Y %T GMT", dup, set_tmx);
}
|
#initialize_copy ⇒ Object
:nodoc:
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# File 'date_core.c', line 4747
static VALUE
d_lite_initialize_copy(VALUE copy, VALUE date)
{
if (copy == date)
return copy;
{
get_d2(copy, date);
if (simple_dat_p(bdat)) {
adat->s = bdat->s;
adat->s.flags &= ~COMPLEX_DAT;
}
else {
if (!complex_dat_p(adat))
rb_raise(rb_eArgError,
"cannot load complex into simple");
adat->c = bdat->c;
adat->c.flags |= COMPLEX_DAT;
}
}
return copy;
}
|
#inspect ⇒ String
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# File 'date_core.c', line 6722
static VALUE
d_lite_inspect(VALUE self)
{
get_d1(self);
{
VALUE to_s;
RB_GC_GUARD(to_s) = f_to_s(self);
return mk_inspect(dat, rb_obj_classname(self), RSTRING_PTR(to_s));
}
}
|
#iso8601 ⇒ String #xmlschema ⇒ String
This method is equivalent to strftime('%F').
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# File 'date_core.c', line 7128
static VALUE
d_lite_iso8601(VALUE self)
{
return strftimev("%Y-%m-%d", self, set_tmx);
}
|
#italy ⇒ Object
This method is equivalent to new_start(Date::ITALY).
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# File 'date_core.c', line 5441
static VALUE
d_lite_italy(VALUE self)
{
return dup_obj_with_new_start(self, ITALY);
}
|
#jd ⇒ Integer
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# File 'date_core.c', line 4840
static VALUE
d_lite_jd(VALUE self)
{
get_d1(self);
return m_real_local_jd(dat);
}
|
#jisx0301 ⇒ String
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# File 'date_core.c', line 7209
static VALUE
d_lite_jisx0301(VALUE self)
{
VALUE s;
get_d1(self);
s = jisx0301_date(m_real_local_jd(dat),
m_real_year(dat));
return strftimev(RSTRING_PTR(s), self, set_tmx);
}
|
#julian ⇒ Object
This method is equivalent to new_start(Date::JULIAN).
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# File 'date_core.c', line 5465
static VALUE
d_lite_julian(VALUE self)
{
return dup_obj_with_new_start(self, JULIAN);
}
|
#julian? ⇒ Boolean
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# File 'date_core.c', line 5286
static VALUE
d_lite_julian_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_julian_p(dat));
}
|
#ld ⇒ Integer
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# File 'date_core.c', line 4877
static VALUE
d_lite_ld(VALUE self)
{
get_d1(self);
return f_sub(m_real_local_jd(dat), INT2FIX(2299160));
}
|
#leap? ⇒ Boolean
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# File 'date_core.c', line 5322
static VALUE
d_lite_leap_p(VALUE self)
{
int rjd, ns, ry, rm, rd;
get_d1(self);
if (m_gregorian_p(dat))
return f_boolcast(c_gregorian_leap_p(m_year(dat)));
c_civil_to_jd(m_year(dat), 3, 1, m_virtual_sg(dat),
&rjd, &ns);
c_jd_to_civil(rjd - 1, m_virtual_sg(dat), &ry, &rm, &rd);
return f_boolcast(rd == 29);
}
|
#marshal_dump ⇒ Object
:nodoc:
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# File 'date_core.c', line 7243
static VALUE
d_lite_marshal_dump(VALUE self)
{
VALUE a;
get_d1(self);
a = rb_ary_new3(6,
m_nth(dat),
INT2FIX(m_jd(dat)),
INT2FIX(m_df(dat)),
m_sf(dat),
INT2FIX(m_of(dat)),
DBL2NUM(m_sg(dat)));
if (FL_TEST(self, FL_EXIVAR)) {
rb_copy_generic_ivar(a, self);
FL_SET(a, FL_EXIVAR);
}
return a;
}
|
#marshal_load ⇒ Object
:nodoc:
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# File 'date_core.c', line 7267
static VALUE
d_lite_marshal_load(VALUE self, VALUE a)
{
get_d1(self);
if (TYPE(a) != T_ARRAY)
rb_raise(rb_eTypeError, "expected an array");
switch (RARRAY_LEN(a)) {
case 3:
{
VALUE ajd, of, sg, nth, sf;
int jd, df, rof;
double rsg;
ajd = RARRAY_PTR(a)[0];
of = RARRAY_PTR(a)[1];
sg = RARRAY_PTR(a)[2];
old_to_new(ajd, of, sg,
&nth, &jd, &df, &sf, &rof, &rsg);
if (!df && f_zero_p(sf) && !rof) {
set_to_simple(&dat->s, nth, jd, rsg, 0, 0, 0, HAVE_JD);
} else {
if (!complex_dat_p(dat))
rb_raise(rb_eArgError,
"cannot load complex into simple");
set_to_complex(&dat->c, nth, jd, df, sf, rof, rsg,
0, 0, 0, 0, 0, 0,
HAVE_JD | HAVE_DF | COMPLEX_DAT);
}
}
break;
case 6:
{
VALUE nth, sf;
int jd, df, of;
double sg;
nth = RARRAY_PTR(a)[0];
jd = NUM2INT(RARRAY_PTR(a)[1]);
df = NUM2INT(RARRAY_PTR(a)[2]);
sf = RARRAY_PTR(a)[3];
of = NUM2INT(RARRAY_PTR(a)[4]);
sg = NUM2DBL(RARRAY_PTR(a)[5]);
if (!df && f_zero_p(sf) && !of) {
set_to_simple(&dat->s, nth, jd, sg, 0, 0, 0, HAVE_JD);
} else {
if (!complex_dat_p(dat))
rb_raise(rb_eArgError,
"cannot load complex into simple");
set_to_complex(&dat->c, nth, jd, df, sf, of, sg,
0, 0, 0, 0, 0, 0,
HAVE_JD | HAVE_DF | COMPLEX_DAT);
}
}
break;
default:
rb_raise(rb_eTypeError, "invalid size");
break;
}
if (FL_TEST(a, FL_EXIVAR)) {
rb_copy_generic_ivar(self, a);
FL_SET(self, FL_EXIVAR);
}
return self;
}
|
#mday ⇒ Fixnum #day ⇒ Fixnum
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# File 'date_core.c', line 4948
static VALUE
d_lite_mday(VALUE self)
{
get_d1(self);
return INT2FIX(m_mday(dat));
}
|
#mjd ⇒ Integer
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# File 'date_core.c', line 4859
static VALUE
d_lite_mjd(VALUE self)
{
get_d1(self);
return f_sub(m_real_local_jd(dat), INT2FIX(2400001));
}
|
#mon ⇒ Fixnum #month ⇒ Fixnum
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# File 'date_core.c', line 4930
static VALUE
d_lite_mon(VALUE self)
{
get_d1(self);
return INT2FIX(m_mon(dat));
}
|
#monday? ⇒ Boolean
Returns true if the date is Monday.
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# File 'date_core.c', line 5078
static VALUE
d_lite_monday_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_wday(dat) == 1);
}
|
#mon ⇒ Fixnum #month ⇒ Fixnum
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# File 'date_core.c', line 4930
static VALUE
d_lite_mon(VALUE self)
{
get_d1(self);
return INT2FIX(m_mon(dat));
}
|
#new_start([start = Date::ITALY]) ⇒ Object
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# File 'date_core.c', line 5420
static VALUE
d_lite_new_start(int argc, VALUE *argv, VALUE self)
{
VALUE vsg;
double sg;
rb_scan_args(argc, argv, "01", &vsg);
sg = DEFAULT_SG;
if (argc >= 1)
val2sg(vsg, sg);
return dup_obj_with_new_start(self, sg);
}
|
#next ⇒ Object
Returns a date object denoting the following day.
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# File 'date_core.c', line 6034
static VALUE
d_lite_next(VALUE self)
{
return d_lite_next_day(0, (VALUE *)NULL, self);
}
|
#next_day([n = 1]) ⇒ Object
This method is equivalent to d + n.
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# File 'date_core.c', line 6000
static VALUE
d_lite_next_day(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(1);
return d_lite_plus(self, n);
}
|
#next_month([n = 1]) ⇒ Object
This method is equivalent to d >> n
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# File 'date_core.c', line 6117
static VALUE
d_lite_next_month(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(1);
return d_lite_rshift(self, n);
}
|
#next_year([n = 1]) ⇒ Object
This method is equivalent to d >> (n * 12)
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# File 'date_core.c', line 6151
static VALUE
d_lite_next_year(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(1);
return d_lite_rshift(self, f_mul(n, INT2FIX(12)));
}
|
#prev_day([n = 1]) ⇒ Object
This method is equivalent to d - n.
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# File 'date_core.c', line 6017
static VALUE
d_lite_prev_day(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(1);
return d_lite_minus(self, n);
}
|
#prev_month([n = 1]) ⇒ Object
This method is equivalent to d << n
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# File 'date_core.c', line 6134
static VALUE
d_lite_prev_month(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(1);
return d_lite_lshift(self, n);
}
|
#prev_year([n = 1]) ⇒ Object
This method is equivalent to d << (n * 12)
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# File 'date_core.c', line 6168
static VALUE
d_lite_prev_year(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(1);
return d_lite_lshift(self, f_mul(n, INT2FIX(12)));
}
|
#rfc2822 ⇒ String #rfc822 ⇒ String
This method is equivalent to strftime('%a, %-d %b %Y %T %z').
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# File 'date_core.c', line 7153
static VALUE
d_lite_rfc2822(VALUE self)
{
return strftimev("%a, %-d %b %Y %T %z", self, set_tmx);
}
|
#rfc3339 ⇒ String
This method is equivalent to strftime('%FT%T%:z').
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# File 'date_core.c', line 7140
static VALUE
d_lite_rfc3339(VALUE self)
{
return strftimev("%Y-%m-%dT%H:%M:%S%:z", self, set_tmx);
}
|
#rfc2822 ⇒ String #rfc822 ⇒ String
This method is equivalent to strftime('%a, %-d %b %Y %T %z').
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# File 'date_core.c', line 7153
static VALUE
d_lite_rfc2822(VALUE self)
{
return strftimev("%a, %-d %b %Y %T %z", self, set_tmx);
}
|
#saturday? ⇒ Boolean
Returns true if the date is Saturday.
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# File 'date_core.c', line 5143
static VALUE
d_lite_saturday_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_wday(dat) == 6);
}
|
#start ⇒ Float
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# File 'date_core.c', line 5348
static VALUE
d_lite_start(VALUE self)
{
get_d1(self);
return DBL2NUM(m_sg(dat));
}
|
#step(limit[, step = 1]) ⇒ Object #step(limit[, step = 1]) {|date| ... } ⇒ self
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# File 'date_core.c', line 6194
static VALUE
d_lite_step(int argc, VALUE *argv, VALUE self)
{
VALUE limit, step, date;
rb_scan_args(argc, argv, "11", &limit, &step);
if (argc < 2)
step = INT2FIX(1);
#if 0
if (f_zero_p(step))
rb_raise(rb_eArgError, "step can't be 0");
#endif
RETURN_ENUMERATOR(self, argc, argv);
date = self;
switch (FIX2INT(f_cmp(step, INT2FIX(0)))) {
case -1:
while (FIX2INT(d_lite_cmp(date, limit)) >= 0) {
rb_yield(date);
date = d_lite_plus(date, step);
}
break;
case 0:
while (1)
rb_yield(date);
break;
case 1:
while (FIX2INT(d_lite_cmp(date, limit)) <= 0) {
rb_yield(date);
date = d_lite_plus(date, step);
}
break;
default:
abort();
}
return self;
}
|
#strftime([format = '%F']) ⇒ String
Formats date according to the directives in the given format
string.
The directives begins with a percent (%) character.
Any text not listed as a directive will be passed through to the
output string.
The directive consists of a percent (%) character,
zero or more flags, optional minimum field width,
optional modifier and a conversion specifier
as follows.
%<flags><width><modifier><conversion>
Flags:
- don't pad a numerical output.
_ use spaces for padding.
0 use zeros for padding.
^ upcase the result string.
# change case.
: use colons for %z.
The minimum field width specifies the minimum width.
The modifier is "E" and "O".
They are ignored.
Format directives:
Date (Year, Month, Day):
%Y - Year with century (can be negative, 4 digits at least)
-0001, 0000, 1995, 2009, 14292, etc.
%C - year / 100 (round down. 20 in 2009)
%y - year % 100 (00..99)
%m - Month of the year, zero-padded (01..12)
%_m blank-padded ( 1..12)
%-m no-padded (1..12)
%B - The full month name (``January'')
%^B uppercased (``JANUARY'')
%b - The abbreviated month name (``Jan'')
%^b uppercased (``JAN'')
%h - Equivalent to %b
%d - Day of the month, zero-padded (01..31)
%-d no-padded (1..31)
%e - Day of the month, blank-padded ( 1..31)
%j - Day of the year (001..366)
Time (Hour, Minute, Second, Subsecond):
%H - Hour of the day, 24-hour clock, zero-padded (00..23)
%k - Hour of the day, 24-hour clock, blank-padded ( 0..23)
%I - Hour of the day, 12-hour clock, zero-padded (01..12)
%l - Hour of the day, 12-hour clock, blank-padded ( 1..12)
%P - Meridian indicator, lowercase (``am'' or ``pm'')
%p - Meridian indicator, uppercase (``AM'' or ``PM'')
%M - Minute of the hour (00..59)
%S - Second of the minute (00..59)
%L - Millisecond of the second (000..999)
%N - Fractional seconds digits, default is 9 digits (nanosecond)
%3N millisecond (3 digits)
%6N microsecond (6 digits)
%9N nanosecond (9 digits)
%12N picosecond (12 digits)
Time zone:
%z - Time zone as hour and minute offset from UTC (e.g. +0900)
%:z - hour and minute offset from UTC with a colon (e.g. +09:00)
%::z - hour, minute and second offset from UTC (e.g. +09:00:00)
%:::z - hour, minute and second offset from UTC
(e.g. +09, +09:30, +09:30:30)
%Z - Time zone abbreviation name
Weekday:
%A - The full weekday name (``Sunday'')
%^A uppercased (``SUNDAY'')
%a - The abbreviated name (``Sun'')
%^a uppercased (``SUN'')
%u - Day of the week (Monday is 1, 1..7)
%w - Day of the week (Sunday is 0, 0..6)
ISO 8601 week-based year and week number:
The week 1 of YYYY starts with a Monday and includes YYYY-01-04.
The days in the year before the first week are in the last week of
the previous year.
%G - The week-based year
%g - The last 2 digits of the week-based year (00..99)
%V - Week number of the week-based year (01..53)
Week number:
The week 1 of YYYY starts with a Sunday or Monday (according to %U
or %W). The days in the year before the first week are in week 0.
%U - Week number of the year. The week starts with Sunday. (00..53)
%W - Week number of the year. The week starts with Monday. (00..53)
Seconds since the Unix Epoch:
%s - Number of seconds since 1970-01-01 00:00:00 UTC.
%Q - Number of microseconds since 1970-01-01 00:00:00 UTC.
Literal string:
%n - Newline character (\n)
%t - Tab character (\t)
%% - Literal ``%'' character
Combination:
%c - date and time (%a %b %e %T %Y)
%D - Date (%m/%d/%y)
%F - The ISO 8601 date format (%Y-%m-%d)
%v - VMS date (%e-%b-%Y)
%x - Same as %D
%X - Same as %T
%r - 12-hour time (%I:%M:%S %p)
%R - 24-hour time (%H:%M)
%T - 24-hour time (%H:%M:%S)
%+ - date(1) (%a %b %e %H:%M:%S %Z %Y)
This method is similar to strftime() function defined in ISO C and POSIX.
Several directives (%a, %A, %b, %B, %c, %p, %r, %x, %X, %E*, %O* and %Z)
are locale dependent in the function.
However this method is locale independent.
So, the result may differ even if a same format string is used in other
systems such as C.
It is good practice to avoid %x and %X because there are corresponding
locale independent representations, %D and %T.
Examples:
d = DateTime.new(2007,11,19,8,37,48,"-06:00")
#=> #<DateTime: 2007-11-19T08:37:48-0600 ...>
d.strftime("Printed on %m/%d/%Y") #=> "Printed on 11/19/2007"
d.strftime("at %I:%M%p") #=> "at 08:37AM"
Various ISO 8601 formats:
%Y%m%d => 20071119 Calendar date (basic)
%F => 2007-11-19 Calendar date (extended)
%Y-%m => 2007-11 Calendar date, reduced accuracy, specific month
%Y => 2007 Calendar date, reduced accuracy, specific year
%C => 20 Calendar date, reduced accuracy, specific century
%Y%j => 2007323 Ordinal date (basic)
%Y-%j => 2007-323 Ordinal date (extended)
%GW%V%u => 2007W471 Week date (basic)
%G-W%V-%u => 2007-W47-1 Week date (extended)
%GW%V => 2007W47 Week date, reduced accuracy, specific week (basic)
%G-W%V => 2007-W47 Week date, reduced accuracy, specific week (extended)
%H%M%S => 083748 Local time (basic)
%T => 08:37:48 Local time (extended)
%H%M => 0837 Local time, reduced accuracy, specific minute (basic)
%H:%M => 08:37 Local time, reduced accuracy, specific minute (extended)
%H => 08 Local time, reduced accuracy, specific hour
%H%M%S,%L => 083748,000 Local time with decimal fraction, comma as decimal sign (basic)
%T,%L => 08:37:48,000 Local time with decimal fraction, comma as decimal sign (extended)
%H%M%S.%L => 083748.000 Local time with decimal fraction, full stop as decimal sign (basic)
%T.%L => 08:37:48.000 Local time with decimal fraction, full stop as decimal sign (extended)
%H%M%S%z => 083748-0600 Local time and the difference from UTC (basic)
%T%:z => 08:37:48-06:00 Local time and the difference from UTC (extended)
%Y%m%dT%H%M%S%z => 20071119T083748-0600 Date and time of day for calendar date (basic)
%FT%T%:z => 2007-11-19T08:37:48-06:00 Date and time of day for calendar date (extended)
%Y%jT%H%M%S%z => 2007323T083748-0600 Date and time of day for ordinal date (basic)
%Y-%jT%T%:z => 2007-323T08:37:48-06:00 Date and time of day for ordinal date (extended)
%GW%V%uT%H%M%S%z => 2007W471T083748-0600 Date and time of day for week date (basic)
%G-W%V-%uT%T%:z => 2007-W47-1T08:37:48-06:00 Date and time of day for week date (extended)
%Y%m%dT%H%M => 20071119T0837 Calendar date and local time (basic)
%FT%R => 2007-11-19T08:37 Calendar date and local time (extended)
%Y%jT%H%MZ => 2007323T0837Z Ordinal date and UTC of day (basic)
%Y-%jT%RZ => 2007-323T08:37Z Ordinal date and UTC of day (extended)
%GW%V%uT%H%M%z => 2007W471T0837-0600 Week date and local time and difference from UTC (basic)
%G-W%V-%uT%R%:z => 2007-W47-1T08:37-06:00 Week date and local time and difference from UTC (extended)
See also strftime(3) and strptime.
7082 7083 7084 7085 7086 7087 |
# File 'date_core.c', line 7082
static VALUE
d_lite_strftime(int argc, VALUE *argv, VALUE self)
{
return date_strftime_internal(argc, argv, self,
"%Y-%m-%d", set_tmx);
}
|
#next ⇒ Object
Returns a date object denoting the following day.
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# File 'date_core.c', line 6034
static VALUE
d_lite_next(VALUE self)
{
return d_lite_next_day(0, (VALUE *)NULL, self);
}
|
#sunday? ⇒ Boolean
Returns true if the date is Sunday.
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# File 'date_core.c', line 5065
static VALUE
d_lite_sunday_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_wday(dat) == 0);
}
|
#thursday? ⇒ Boolean
Returns true if the date is Thursday.
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# File 'date_core.c', line 5117
static VALUE
d_lite_thursday_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_wday(dat) == 4);
}
|
#to_date ⇒ self
Returns self;
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# File 'date_core.c', line 8737
static VALUE
date_to_date(VALUE self)
{
return self;
}
|
#to_datetime ⇒ Object
Returns a DateTime object which denotes self.
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# File 'date_core.c', line 8749
static VALUE
date_to_datetime(VALUE self)
{
get_d1a(self);
if (simple_dat_p(adat)) {
VALUE new = d_lite_s_alloc_simple(cDateTime);
{
get_d1b(new);
bdat->s = adat->s;
return new;
}
}
else {
VALUE new = d_lite_s_alloc_complex(cDateTime);
{
get_d1b(new);
bdat->c = adat->c;
bdat->c.df = 0;
bdat->c.sf = INT2FIX(0);
#ifndef USE_PACK
bdat->c.hour = 0;
bdat->c.min = 0;
bdat->c.sec = 0;
#else
bdat->c.pc = PACK5(EX_MON(adat->c.pc), EX_MDAY(adat->c.pc),
0, 0, 0);
bdat->c.flags |= HAVE_DF | HAVE_TIME;
#endif
return new;
}
}
}
|
#to_s ⇒ String
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# File 'date_core.c', line 6614
static VALUE
d_lite_to_s(VALUE self)
{
return strftimev("%Y-%m-%d", self, set_tmx);
}
|
#to_time ⇒ Time
Returns a Time object which denotes self.
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# File 'date_core.c', line 8720
static VALUE
date_to_time(VALUE self)
{
get_d1(self);
return f_local3(rb_cTime,
m_real_year(dat),
INT2FIX(m_mon(dat)),
INT2FIX(m_mday(dat)));
}
|
#tuesday? ⇒ Boolean
Returns true if the date is Tuesday.
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# File 'date_core.c', line 5091
static VALUE
d_lite_tuesday_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_wday(dat) == 2);
}
|
#upto(max) ⇒ Object #upto(max) {|date| ... } ⇒ self
This method is equivalent to step(max, 1){|date| ...}.
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# File 'date_core.c', line 6242
static VALUE
d_lite_upto(VALUE self, VALUE max)
{
VALUE date;
RETURN_ENUMERATOR(self, 1, &max);
date = self;
while (FIX2INT(d_lite_cmp(date, max)) <= 0) {
rb_yield(date);
date = d_lite_plus(date, INT2FIX(1));
}
return self;
}
|
#wday ⇒ Fixnum
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# File 'date_core.c', line 5052
static VALUE
d_lite_wday(VALUE self)
{
get_d1(self);
return INT2FIX(m_wday(dat));
}
|
#wednesday? ⇒ Boolean
Returns true if the date is Wednesday.
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# File 'date_core.c', line 5104
static VALUE
d_lite_wednesday_p(VALUE self)
{
get_d1(self);
return f_boolcast(m_wday(dat) == 3);
}
|
#iso8601 ⇒ String #xmlschema ⇒ String
This method is equivalent to strftime('%F').
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# File 'date_core.c', line 7128
static VALUE
d_lite_iso8601(VALUE self)
{
return strftimev("%Y-%m-%d", self, set_tmx);
}
|
#yday ⇒ Fixnum
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# File 'date_core.c', line 4912
static VALUE
d_lite_yday(VALUE self)
{
get_d1(self);
return INT2FIX(m_yday(dat));
}
|