Maintenance of Ruby 2.0.0 ended on February 24, 2016. Read more
datetime
Parses the given representation of date and time with the given template, and returns a hash of parsed elements. _strptime does not support specification of flags and width unlike strftime.
See also strptime(3) and strftime.
static VALUE
datetime_s__strptime(int argc, VALUE *argv, VALUE klass)
{
return date_s__strptime_internal(argc, argv, klass, "%FT%T%z");
}
Creates a date-time object denoting the given calendar date.
DateTime.new(2001,2,3) #=> #<DateTime: 2001年02月03日T00:00:00+00:00 ...> DateTime.new(2001,2,3,4,5,6,'+7') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.new(2001,-11,-26,-20,-55,-54,'+7') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_s_civil(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vm, vd, vh, vmin, vs, vof, vsg, y, fr, fr2, ret;
int m, d, h, min, s, rof;
double sg;
rb_scan_args(argc, argv, "08", &vy, &vm, &vd, &vh, &vmin, &vs, &vof, &vsg);
y = INT2FIX(-4712);
m = 1;
d = 1;
h = min = s = 0;
fr2 = INT2FIX(0);
rof = 0;
sg = DEFAULT_SG;
switch (argc) {
case 8:
val2sg(vsg, sg);
case 7:
val2off(vof, rof);
case 6:
num2int_with_frac(s, positive_inf);
case 5:
num2int_with_frac(min, 5);
case 4:
num2int_with_frac(h, 4);
case 3:
num2int_with_frac(d, 3);
case 2:
m = NUM2INT(vm);
case 1:
y = vy;
}
if (guess_style(y, sg) < 0) {
VALUE nth;
int ry, rm, rd, rh, rmin, rs;
if (!valid_gregorian_p(y, m, d,
&nth, &ry,
&rm, &rd))
rb_raise(rb_eArgError, "invalid date");
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(rb_eArgError, "invalid date");
canon24oc();
ret = d_complex_new_internal(klass,
nth, 0,
0, INT2FIX(0),
rof, sg,
ry, rm, rd,
rh, rmin, rs,
HAVE_CIVIL | HAVE_TIME);
}
else {
VALUE nth;
int ry, rm, rd, rh, rmin, rs, rjd, rjd2, ns;
if (!valid_civil_p(y, m, d, sg,
&nth, &ry,
&rm, &rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(rb_eArgError, "invalid date");
canon24oc();
rjd2 = jd_local_to_utc(rjd,
time_to_df(rh, rmin, rs),
rof);
ret = d_complex_new_internal(klass,
nth, rjd2,
0, INT2FIX(0),
rof, sg,
ry, rm, rd,
rh, rmin, rs,
HAVE_JD | HAVE_CIVIL | HAVE_TIME);
}
add_frac();
return ret;
}
Creates a date-time object denoting the given week date.
DateTime.commercial(2001) #=> #<DateTime: 2001年01月01日T00:00:00+00:00 ...> DateTime.commercial(2002) #=> #<DateTime: 2001年12月31日T00:00:00+00:00 ...> DateTime.commercial(2001,5,6,4,5,6,'+7') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_s_commercial(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vw, vd, vh, vmin, vs, vof, vsg, y, fr, fr2, ret;
int w, d, h, min, s, rof;
double sg;
rb_scan_args(argc, argv, "08", &vy, &vw, &vd, &vh, &vmin, &vs, &vof, &vsg);
y = INT2FIX(-4712);
w = 1;
d = 1;
h = min = s = 0;
fr2 = INT2FIX(0);
rof = 0;
sg = DEFAULT_SG;
switch (argc) {
case 8:
val2sg(vsg, sg);
case 7:
val2off(vof, rof);
case 6:
num2int_with_frac(s, positive_inf);
case 5:
num2int_with_frac(min, 5);
case 4:
num2int_with_frac(h, 4);
case 3:
num2int_with_frac(d, 3);
case 2:
w = NUM2INT(vw);
case 1:
y = vy;
}
{
VALUE nth;
int ry, rw, rd, rh, rmin, rs, rjd, rjd2, ns;
if (!valid_commercial_p(y, w, d, sg,
&nth, &ry,
&rw, &rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(rb_eArgError, "invalid date");
canon24oc();
rjd2 = jd_local_to_utc(rjd,
time_to_df(rh, rmin, rs),
rof);
ret = d_complex_new_internal(klass,
nth, rjd2,
0, INT2FIX(0),
rof, sg,
0, 0, 0,
rh, rmin, rs,
HAVE_JD | HAVE_TIME);
}
add_frac();
return ret;
}
Creates a new Date object by parsing from a string according to some RFC 2616 format.
DateTime.httpdate('2001年2月03日 04:05:06 GMT') #=> #<DateTime: 2001年02月03日T04:05:06+00:00 ...>
static VALUE
datetime_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 dt_new_by_frags(klass, hash, sg);
}
}
Creates a new Date object by parsing from a string according to some typical ISO 8601 formats.
DateTime.iso8601('2001年02月03日T04:05:06+07:00') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.iso8601('20010203T040506+0700') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.iso8601('2001-W05-6T04:05:06+07:00') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_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年01月01日T00:00:00+00:00");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__iso8601(klass, str);
return dt_new_by_frags(klass, hash, sg);
}
}
Creates a datetime object denoting the given chronological Julian day number.
DateTime.jd(2451944) #=> #<DateTime: 2001年02月03日T00:00:00+00:00 ...> DateTime.jd(2451945) #=> #<DateTime: 2001年02月04日T00:00:00+00:00 ...> DateTime.jd(Rational('0.5')) #=> #<DateTime: -4712年01月01日T12:00:00+00:00 ...>
static VALUE
datetime_s_jd(int argc, VALUE *argv, VALUE klass)
{
VALUE vjd, vh, vmin, vs, vof, vsg, jd, fr, fr2, ret;
int h, min, s, rof;
double sg;
rb_scan_args(argc, argv, "06", &vjd, &vh, &vmin, &vs, &vof, &vsg);
jd = INT2FIX(0);
h = min = s = 0;
fr2 = INT2FIX(0);
rof = 0;
sg = DEFAULT_SG;
switch (argc) {
case 6:
val2sg(vsg, sg);
case 5:
val2off(vof, rof);
case 4:
num2int_with_frac(s, positive_inf);
case 3:
num2int_with_frac(min, 3);
case 2:
num2int_with_frac(h, 2);
case 1:
num2num_with_frac(jd, 1);
}
{
VALUE nth;
int rh, rmin, rs, rjd, rjd2;
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(rb_eArgError, "invalid date");
canon24oc();
decode_jd(jd, &nth, &rjd);
rjd2 = jd_local_to_utc(rjd,
time_to_df(rh, rmin, rs),
rof);
ret = d_complex_new_internal(klass,
nth, rjd2,
0, INT2FIX(0),
rof, sg,
0, 0, 0,
rh, rmin, rs,
HAVE_JD | HAVE_TIME);
}
add_frac();
return ret;
}
Creates a new Date object by parsing from a string according to some typical JIS X 0301 formats.
DateTime.jisx0301('平成13年02月03日T04:05:06+07:00') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_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年01月01日T00:00:00+00:00");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__jisx0301(klass, str);
return dt_new_by_frags(klass, hash, sg);
}
}
Creates a date-time object denoting the given calendar date.
DateTime.new(2001,2,3) #=> #<DateTime: 2001年02月03日T00:00:00+00:00 ...> DateTime.new(2001,2,3,4,5,6,'+7') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.new(2001,-11,-26,-20,-55,-54,'+7') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_s_civil(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vm, vd, vh, vmin, vs, vof, vsg, y, fr, fr2, ret;
int m, d, h, min, s, rof;
double sg;
rb_scan_args(argc, argv, "08", &vy, &vm, &vd, &vh, &vmin, &vs, &vof, &vsg);
y = INT2FIX(-4712);
m = 1;
d = 1;
h = min = s = 0;
fr2 = INT2FIX(0);
rof = 0;
sg = DEFAULT_SG;
switch (argc) {
case 8:
val2sg(vsg, sg);
case 7:
val2off(vof, rof);
case 6:
num2int_with_frac(s, positive_inf);
case 5:
num2int_with_frac(min, 5);
case 4:
num2int_with_frac(h, 4);
case 3:
num2int_with_frac(d, 3);
case 2:
m = NUM2INT(vm);
case 1:
y = vy;
}
if (guess_style(y, sg) < 0) {
VALUE nth;
int ry, rm, rd, rh, rmin, rs;
if (!valid_gregorian_p(y, m, d,
&nth, &ry,
&rm, &rd))
rb_raise(rb_eArgError, "invalid date");
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(rb_eArgError, "invalid date");
canon24oc();
ret = d_complex_new_internal(klass,
nth, 0,
0, INT2FIX(0),
rof, sg,
ry, rm, rd,
rh, rmin, rs,
HAVE_CIVIL | HAVE_TIME);
}
else {
VALUE nth;
int ry, rm, rd, rh, rmin, rs, rjd, rjd2, ns;
if (!valid_civil_p(y, m, d, sg,
&nth, &ry,
&rm, &rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(rb_eArgError, "invalid date");
canon24oc();
rjd2 = jd_local_to_utc(rjd,
time_to_df(rh, rmin, rs),
rof);
ret = d_complex_new_internal(klass,
nth, rjd2,
0, INT2FIX(0),
rof, sg,
ry, rm, rd,
rh, rmin, rs,
HAVE_JD | HAVE_CIVIL | HAVE_TIME);
}
add_frac();
return ret;
}
Creates a date-time object denoting the present time.
DateTime.now #=> #<DateTime: 2011年06月11日T21:20:44+09:00 ...>
static VALUE
datetime_s_now(int argc, VALUE *argv, VALUE klass)
{
VALUE vsg, nth, ret;
double sg;
#ifdef HAVE_CLOCK_GETTIME
struct timespec ts;
#else
struct timeval tv;
#endif
time_t sec;
struct tm tm;
long sf, of;
int y, ry, m, d, h, min, s;
rb_scan_args(argc, argv, "01", &vsg);
if (argc < 1)
sg = DEFAULT_SG;
else
sg = NUM2DBL(vsg);
#ifdef HAVE_CLOCK_GETTIME
if (clock_gettime(CLOCK_REALTIME, &ts) == -1)
rb_sys_fail("clock_gettime");
sec = ts.tv_sec;
#else
if (gettimeofday(&tv, NULL) == -1)
rb_sys_fail("gettimeofday");
sec = tv.tv_sec;
#endif
tzset();
if (!localtime_r(&sec, &tm))
rb_sys_fail("localtime");
y = tm.tm_year + 1900;
m = tm.tm_mon + 1;
d = tm.tm_mday;
h = tm.tm_hour;
min = tm.tm_min;
s = tm.tm_sec;
if (s == 60)
s = 59;
#ifdef HAVE_STRUCT_TM_TM_GMTOFF
of = tm.tm_gmtoff;
#elif defined(HAVE_VAR_TIMEZONE)
#ifdef HAVE_VAR_ALTZONE
of = (long)-((tm.tm_isdst > 0) ? altzone : timezone);
#else
of = (long)-timezone;
if (tm.tm_isdst) {
time_t sec2;
tm.tm_isdst = 0;
sec2 = mktime(&tm);
of += (long)difftime(sec2, sec);
}
#endif
#elif defined(HAVE_TIMEGM)
{
time_t sec2;
sec2 = timegm(&tm);
of = (long)difftime(sec2, sec);
}
#else
{
struct tm tm2;
time_t sec2;
if (!gmtime_r(&sec, &tm2))
rb_sys_fail("gmtime");
tm2.tm_isdst = tm.tm_isdst;
sec2 = mktime(&tm2);
of = (long)difftime(sec, sec2);
}
#endif
#ifdef HAVE_CLOCK_GETTIME
sf = ts.tv_nsec;
#else
sf = tv.tv_usec * 1000;
#endif
if (of < -DAY_IN_SECONDS || of > DAY_IN_SECONDS) {
of = 0;
rb_warning("invalid offset is ignored");
}
decode_year(INT2FIX(y), -1, &nth, &ry);
ret = d_complex_new_internal(klass,
nth, 0,
0, LONG2NUM(sf),
(int)of, GREGORIAN,
ry, m, d,
h, min, s,
HAVE_CIVIL | HAVE_TIME);
{
get_d1(ret);
set_sg(dat, sg);
}
return ret;
}
Creates a date-time object denoting the given ordinal date.
DateTime.ordinal(2001,34) #=> #<DateTime: 2001年02月03日T00:00:00+00:00 ...> DateTime.ordinal(2001,34,4,5,6,'+7') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.ordinal(2001,-332,-20,-55,-54,'+7') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_s_ordinal(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vd, vh, vmin, vs, vof, vsg, y, fr, fr2, ret;
int d, h, min, s, rof;
double sg;
rb_scan_args(argc, argv, "07", &vy, &vd, &vh, &vmin, &vs, &vof, &vsg);
y = INT2FIX(-4712);
d = 1;
h = min = s = 0;
fr2 = INT2FIX(0);
rof = 0;
sg = DEFAULT_SG;
switch (argc) {
case 7:
val2sg(vsg, sg);
case 6:
val2off(vof, rof);
case 5:
num2int_with_frac(s, positive_inf);
case 4:
num2int_with_frac(min, 4);
case 3:
num2int_with_frac(h, 3);
case 2:
num2int_with_frac(d, 2);
case 1:
y = vy;
}
{
VALUE nth;
int ry, rd, rh, rmin, rs, rjd, rjd2, ns;
if (!valid_ordinal_p(y, d, sg,
&nth, &ry,
&rd, &rjd,
&ns))
rb_raise(rb_eArgError, "invalid date");
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(rb_eArgError, "invalid date");
canon24oc();
rjd2 = jd_local_to_utc(rjd,
time_to_df(rh, rmin, rs),
rof);
ret = d_complex_new_internal(klass,
nth, rjd2,
0, INT2FIX(0),
rof, sg,
0, 0, 0,
rh, rmin, rs,
HAVE_JD | HAVE_TIME);
}
add_frac();
return ret;
}
Parses the given representation of date and time, and creates a date object. This method does not function as a validator.
If the optional second argument is true and the detected year is in the range "00" to "99", makes it full.
DateTime.parse('2001年02月03日T04:05:06+07:00') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.parse('20010203T040506+0700') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.parse('3rd Feb 2001 04:05:06 PM') #=> #<DateTime: 2001年02月03日T16:05:06+00:00 ...>
static VALUE
datetime_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年01月01日T00:00:00+00:00");
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 dt_new_by_frags(klass, hash, sg);
}
}
Creates a new Date object by parsing from a string according to some typical RFC 2822 formats.
DateTime.rfc2822('Sat, 3 Feb 2001 04:05:06 +0700') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_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 dt_new_by_frags(klass, hash, sg);
}
}
Creates a new Date object by parsing from a string according to some typical RFC 3339 formats.
DateTime.rfc3339('2001年02月03日T04:05:06+07:00') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_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年01月01日T00:00:00+00:00");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__rfc3339(klass, str);
return dt_new_by_frags(klass, hash, sg);
}
}
Creates a new Date object by parsing from a string according to some typical RFC 2822 formats.
DateTime.rfc2822('Sat, 3 Feb 2001 04:05:06 +0700') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_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 dt_new_by_frags(klass, hash, sg);
}
}
Parses the given representation of date and time with the given template, and creates a date object. strptime does not support specification of flags and width unlike strftime.
DateTime.strptime('2001年02月03日T04:05:06+07:00', '%Y-%m-%dT%H:%M:%S%z') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.strptime('03-02-2001 04:05:06 PM', '%d-%m-%Y %I:%M:%S %p') #=> #<DateTime: 2001年02月03日T16:05:06+00:00 ...> DateTime.strptime('2001-W05-6T04:05:06+07:00', '%G-W%V-%uT%H:%M:%S%z') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.strptime('2001 04 6 04 05 06 +7', '%Y %U %w %H %M %S %z') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.strptime('2001 05 6 04 05 06 +7', '%Y %W %u %H %M %S %z') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...> DateTime.strptime('-1', '%s') #=> #<DateTime: 1969年12月31日T23:59:59+00:00 ...> DateTime.strptime('-1000', '%Q') #=> #<DateTime: 1969年12月31日T23:59:59+00:00 ...> DateTime.strptime('sat3feb014pm+7', '%a%d%b%y%H%p%z') #=> #<DateTime: 2001年02月03日T16:00:00+07:00 ...>
See also strptime(3) and strftime.
static VALUE
datetime_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年01月01日T00:00:00+00:00");
case 1:
fmt = rb_str_new2("%FT%T%z");
case 2:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE argv2[2], hash;
argv2[0] = str;
argv2[1] = fmt;
hash = date_s__strptime(2, argv2, klass);
return dt_new_by_frags(klass, hash, sg);
}
}
Creates a new Date object by parsing from a string according to some typical XML Schema formats.
DateTime.xmlschema('2001年02月03日T04:05:06+07:00') #=> #<DateTime: 2001年02月03日T04:05:06+07:00 ...>
static VALUE
datetime_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年01月01日T00:00:00+00:00");
case 1:
sg = INT2FIX(DEFAULT_SG);
}
{
VALUE hash = date_s__xmlschema(klass, str);
return dt_new_by_frags(klass, hash, sg);
}
}
This method is equivalent to strftime('%FT%T'). The optional argument n is length of fractional seconds.
DateTime.parse('2001年02月03日T04:05:06.123456789+07:00').iso8601(9) #=> "2001年02月03日T04:05:06.123456789+07:00"
static VALUE
dt_lite_iso8601(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(0);
return f_add(strftimev("%Y-%m-%d", self, set_tmx),
iso8601_timediv(self, n));
}
Returns a string in a JIS X 0301 format. The optional argument n is length of fractional seconds.
DateTime.parse('2001年02月03日T04:05:06.123456789+07:00').jisx0301(9) #=> "平成13年02月03日T04:05:06.123456789+07:00"
static VALUE
dt_lite_jisx0301(int argc, VALUE *argv, VALUE self)
{
VALUE n, s;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(0);
{
get_d1(self);
s = jisx0301_date(m_real_local_jd(dat),
m_real_year(dat));
return rb_str_append(strftimev(RSTRING_PTR(s), self, set_tmx),
iso8601_timediv(self, n));
}
}
This method is equivalent to strftime('%FT%T'). The optional argument n is length of fractional seconds.
DateTime.parse('2001年02月03日T04:05:06.123456789+07:00').rfc3339(9) #=> "2001年02月03日T04:05:06.123456789+07:00"
static VALUE
dt_lite_rfc3339(int argc, VALUE *argv, VALUE self)
{
return dt_lite_iso8601(argc, argv, self);
}
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) %15N femtosecond (15 digits)
%6N microsecond (6 digits) %18N attosecond (18 digits)
%9N nanosecond (9 digits) %21N zeptosecond (21 digits)
%12N picosecond (12 digits) %24N yoctosecond (24 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 or something similar information.
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年01月01日 00:00:00 UTC.
%Q - Number of milliseconds since 1970年01月01日 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年11月19日T08:37:48-0600 ...>
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年11月19日 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年11月19日T08:37:48-06:00 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年11月19日T08:37 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.
static VALUE
dt_lite_strftime(int argc, VALUE *argv, VALUE self)
{
return date_strftime_internal(argc, argv, self,
"%Y-%m-%dT%H:%M:%S%:z", set_tmx);
}
Returns a Date object which denotes self.
static VALUE
datetime_to_date(VALUE self)
{
get_d1a(self);
if (simple_dat_p(adat)) {
VALUE new = d_lite_s_alloc_simple(cDate);
{
get_d1b(new);
bdat->s = adat->s;
bdat->s.jd = m_local_jd(adat);
return new;
}
}
else {
VALUE new = d_lite_s_alloc_simple(cDate);
{
get_d1b(new);
copy_complex_to_simple(&bdat->s, &adat->c)
bdat->s.jd = m_local_jd(adat);
bdat->s.flags &= ~(HAVE_DF | HAVE_TIME | COMPLEX_DAT);
return new;
}
}
}
Returns self.
static VALUE
datetime_to_datetime(VALUE self)
{
return self;
}
Returns a string in an ISO 8601 format (This method doesn't use the expanded representations).
DateTime.new(2001,2,3,4,5,6,'-7').to_s #=> "2001年02月03日T04:05:06-07:00"
static VALUE
dt_lite_to_s(VALUE self)
{
return strftimev("%Y-%m-%dT%H:%M:%S%:z", self, set_tmx);
}
Returns a Time object which denotes self.
static VALUE
datetime_to_time(VALUE self)
{
volatile VALUE dup = dup_obj_with_new_offset(self, 0);
{
VALUE t;
get_d1(dup);
t = f_utc6(rb_cTime,
m_real_year(dat),
INT2FIX(m_mon(dat)),
INT2FIX(m_mday(dat)),
INT2FIX(m_hour(dat)),
INT2FIX(m_min(dat)),
f_add(INT2FIX(m_sec(dat)),
m_sf_in_sec(dat)));
return f_getlocal(t);
}
}
This method is equivalent to strftime('%FT%T'). The optional argument n is length of fractional seconds.
DateTime.parse('2001年02月03日T04:05:06.123456789+07:00').iso8601(9) #=> "2001年02月03日T04:05:06.123456789+07:00"
static VALUE
dt_lite_iso8601(int argc, VALUE *argv, VALUE self)
{
VALUE n;
rb_scan_args(argc, argv, "01", &n);
if (argc < 1)
n = INT2FIX(0);
return f_add(strftimev("%Y-%m-%d", self, set_tmx),
iso8601_timediv(self, n));
}