From bcad5a51d76c1f32cff18f2d0ec553aecd523198 Mon Sep 17 00:00:00 2001 From: nobu Date: Mon, 6 Feb 2017 07:34:13 +0000 Subject: date_core.c: [DOC] revise docs [ci skip] * fix malformed rdoc for Date#today, Date._strptime, and DateTime._strptime * add code examples for Date#<< and Date#>> to demonstrate that different dates can result in the same return value * use Date::ITALY in call-seq instead of only ITALY * fix some copy/paste mistakes where Date should be DateTime * fix various errors and grammar * fix cross references and formatting [ruby-core:79433] [Bug #13193] Author: Marcus Stollsteimer git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57549 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ext/date/date_core.c | 264 ++++++++++++++++++++++++++------------------------- 1 file changed, 135 insertions(+), 129 deletions(-) (limited to 'ext/date') diff --git a/ext/date/date_core.c b/ext/date/date_core.c index 12240d7457..e0c63c10f6 100644 --- a/ext/date/date_core.c +++ b/ext/date/date_core.c @@ -2462,7 +2462,7 @@ date_s__valid_jd_p(int argc, VALUE *argv, VALUE klass) * * Date.valid_jd?(2451944) #=> true * - * See also jd. + * See also ::jd. */ static VALUE date_s_valid_jd_p(int argc, VALUE *argv, VALUE klass) @@ -2551,7 +2551,7 @@ date_s__valid_civil_p(int argc, VALUE *argv, VALUE klass) * Date.valid_date?(2001,2,3) #=> true * Date.valid_date?(2001,2,29) #=> false * - * See also jd and civil. + * See also ::jd and ::civil. */ static VALUE date_s_valid_civil_p(int argc, VALUE *argv, VALUE klass) @@ -2632,7 +2632,7 @@ date_s__valid_ordinal_p(int argc, VALUE *argv, VALUE klass) * Date.valid_ordinal?(2001,34) #=> true * Date.valid_ordinal?(2001,366) #=> false * - * See also jd and ordinal. + * See also ::jd and ::ordinal. */ static VALUE date_s_valid_ordinal_p(int argc, VALUE *argv, VALUE klass) @@ -2714,7 +2714,7 @@ date_s__valid_commercial_p(int argc, VALUE *argv, VALUE klass) * Date.valid_commercial?(2001,5,6) #=> true * Date.valid_commercial?(2001,5,8) #=> false * - * See also jd and commercial. + * See also ::jd and ::commercial. */ static VALUE date_s_valid_commercial_p(int argc, VALUE *argv, VALUE klass) @@ -3262,7 +3262,7 @@ static VALUE d_lite_plus(VALUE, VALUE); * Date.jd(2451945) #=> # * Date.jd(0) #=> # * - * See also new. + * See also ::new. */ static VALUE date_s_jd(int argc, VALUE *argv, VALUE klass) @@ -3312,7 +3312,7 @@ date_s_jd(int argc, VALUE *argv, VALUE klass) * Date.ordinal(2001,34) #=> # * Date.ordinal(2001,-1) #=> # * - * See also jd and new. + * See also ::jd and ::new. */ static VALUE date_s_ordinal(int argc, VALUE *argv, VALUE klass) @@ -3380,7 +3380,7 @@ date_s_ordinal(int argc, VALUE *argv, VALUE klass) * Date.new(2001,2,3) #=> # * Date.new(2001,2,-1) #=> # * - * See also jd. + * See also ::jd. */ static VALUE date_s_civil(int argc, VALUE *argv, VALUE klass) @@ -3457,7 +3457,7 @@ date_s_civil(int argc, VALUE *argv, VALUE klass) * Date.commercial(2002) #=> # * Date.commercial(2001,5,6) #=> # * - * See also jd and new. + * See also ::jd and ::new. */ static VALUE date_s_commercial(int argc, VALUE *argv, VALUE klass) @@ -3631,9 +3631,9 @@ static void set_sg(union DateData *, double); * call-seq: * Date.today([start=Date::ITALY]) -> date * - * Date.today #=> # - * * Creates a date object denoting the present day. + * + * Date.today #=> # */ static VALUE date_s_today(int argc, VALUE *argv, VALUE klass) @@ -4236,7 +4236,7 @@ date_s__strptime_internal(int argc, VALUE *argv, VALUE klass, * Date._strptime('2001-02-03', '%Y-%m-%d') * #=> {:year=>2001, :mon=>2, :mday=>3} * - * See also strptime(3) and strftime. + * See also strptime(3) and #strftime. */ static VALUE date_s__strptime(int argc, VALUE *argv, VALUE klass) @@ -4246,7 +4246,7 @@ date_s__strptime(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * Date.strptime([string='-4712-01-01'[, format='%F'[, start=ITALY]]]) -> date + * Date.strptime([string='-4712-01-01'[, format='%F'[, start=Date::ITALY]]]) -> date * * Parses the given representation of date and time with the given * template, and creates a date object. strptime does not support @@ -4260,7 +4260,7 @@ date_s__strptime(int argc, VALUE *argv, VALUE klass) * Date.strptime('2001 05 6', '%Y %W %u') #=> # * Date.strptime('sat3feb01', '%a%d%b%y') #=> # * - * See also strptime(3) and strftime. + * See also strptime(3) and #strftime. */ static VALUE date_s_strptime(int argc, VALUE *argv, VALUE klass) @@ -4340,7 +4340,7 @@ date_s__parse(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * Date.parse(string='-4712-01-01'[, comp=true[, start=ITALY]]) -> date + * Date.parse(string='-4712-01-01'[, comp=true[, start=Date::ITALY]]) -> date * * Parses the given representation of date and time, and creates a * date object. This method does not function as a validator. @@ -4400,7 +4400,7 @@ date_s__iso8601(VALUE klass, VALUE str) /* * call-seq: - * Date.iso8601(string='-4712-01-01'[, start=ITALY]) -> date + * Date.iso8601(string='-4712-01-01'[, start=Date::ITALY]) -> date * * Creates a new Date object by parsing from a string according to * some typical ISO 8601 formats. @@ -4443,7 +4443,7 @@ date_s__rfc3339(VALUE klass, VALUE str) /* * call-seq: - * Date.rfc3339(string='-4712-01-01T00:00:00+00:00'[, start=ITALY]) -> date + * Date.rfc3339(string='-4712-01-01T00:00:00+00:00'[, start=Date::ITALY]) -> date * * Creates a new Date object by parsing from a string according to * some typical RFC 3339 formats. @@ -4484,7 +4484,7 @@ date_s__xmlschema(VALUE klass, VALUE str) /* * call-seq: - * Date.xmlschema(string='-4712-01-01'[, start=ITALY]) -> date + * Date.xmlschema(string='-4712-01-01'[, start=Date::ITALY]) -> date * * Creates a new Date object by parsing from a string according to * some typical XML Schema formats. @@ -4526,8 +4526,8 @@ date_s__rfc2822(VALUE klass, VALUE str) /* * call-seq: - * Date.rfc2822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) -> date - * Date.rfc822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) -> date + * Date.rfc2822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=Date::ITALY]) -> date + * Date.rfc822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=Date::ITALY]) -> date * * Creates a new Date object by parsing from a string according to * some typical RFC 2822 formats. @@ -4569,7 +4569,7 @@ date_s__httpdate(VALUE klass, VALUE str) /* * call-seq: - * Date.httpdate(string='Mon, 01 Jan -4712 00:00:00 GMT'[, start=ITALY]) -> date + * Date.httpdate(string='Mon, 01 Jan -4712 00:00:00 GMT'[, start=Date::ITALY]) -> date * * Creates a new Date object by parsing from a string according to * some RFC 2616 format. @@ -4611,7 +4611,7 @@ date_s__jisx0301(VALUE klass, VALUE str) /* * call-seq: - * Date.jisx0301(string='-4712-01-01'[, start=ITALY]) -> date + * Date.jisx0301(string='-4712-01-01'[, start=Date::ITALY]) -> date * * Creates a new Date object by parsing from a string according to * some typical JIS X 0301 formats. @@ -5380,7 +5380,7 @@ dup_obj_with_new_start(VALUE obj, double sg) * call-seq: * d.new_start([start=Date::ITALY]) -> date * - * Duplicates self and resets its the day of calendar reform. + * Duplicates self and resets its day of calendar reform. * * d = Date.new(1582,10,15) * d.new_start(Date::JULIAN) #=> # @@ -5498,9 +5498,9 @@ d_lite_new_offset(int argc, VALUE *argv, VALUE self) * call-seq: * d + other -> date * - * 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. + * Returns a date object pointing +other+ days after self. The other + * should be a numeric value. If the other is a fractional number, + * assumes its precision is at most nanosecond. * * Date.new(2001,2,3) + 1 #=> # * DateTime.new(2001,2,3) + Rational(1,2) @@ -5883,8 +5883,8 @@ minus_dd(VALUE self, VALUE other) * * 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. + * pointing +other+ days before self. If the other is a fractional number, + * assumes its precision is at most nanosecond. * * Date.new(2001,2,3) - 1 #=> # * DateTime.new(2001,2,3) - Rational(1,2) @@ -5965,12 +5965,13 @@ d_lite_next(VALUE self) * call-seq: * d >> n -> date * - * Returns a date object pointing n months after self. The n should - * be a numeric value. + * Returns a date object pointing +n+ months after self. + * The argument +n+ should be a numeric value. * - * Date.new(2001,2,3) >> 1 #=> # - * Date.new(2001,1,31) >> 1 #=> # - * Date.new(2001,2,3) >> -2 #=> # + * Date.new(2001,2,3) >> 1 #=> # + * Date.new(2001,1,30) >> 1 #=> # + * Date.new(2001,1,31) >> 1 #=> # + * Date.new(2001,2,3) >> -2 #=> # */ static VALUE d_lite_rshift(VALUE self, VALUE other) @@ -6015,12 +6016,13 @@ d_lite_rshift(VALUE self, VALUE other) * call-seq: * d << n -> date * - * Returns a date object pointing n months before self. The n should - * be a numeric value. + * Returns a date object pointing +n+ months before self. + * The argument +n+ should be a numeric value. * - * Date.new(2001,2,3) << 1 #=> # - * Date.new(2001,1,31) << 11 #=> # - * Date.new(2001,2,3) << -1 #=> # + * Date.new(2001,2,3) << 1 #=> # + * Date.new(2001,1,30) << 11 #=> # + * Date.new(2001,1,31) << 11 #=> # + * Date.new(2001,2,3) << -1 #=> # */ static VALUE d_lite_lshift(VALUE self, VALUE other) @@ -6033,7 +6035,7 @@ d_lite_lshift(VALUE self, VALUE other) * call-seq: * d.next_month([n=1]) -> date * - * This method is equivalent to d >> n + * This method is equivalent to d >> n. */ static VALUE d_lite_next_month(int argc, VALUE *argv, VALUE self) @@ -6050,7 +6052,7 @@ d_lite_next_month(int argc, VALUE *argv, VALUE self) * call-seq: * d.prev_month([n=1]) -> date * - * This method is equivalent to d << n + * This method is equivalent to d << n. */ static VALUE d_lite_prev_month(int argc, VALUE *argv, VALUE self) @@ -6067,7 +6069,7 @@ d_lite_prev_month(int argc, VALUE *argv, VALUE self) * call-seq: * d.next_year([n=1]) -> date * - * This method is equivalent to d >> (n * 12) + * This method is equivalent to d >> (n * 12). */ static VALUE d_lite_next_year(int argc, VALUE *argv, VALUE self) @@ -6084,7 +6086,7 @@ d_lite_next_year(int argc, VALUE *argv, VALUE self) * call-seq: * d.prev_year([n=1]) -> date * - * This method is equivalent to d << (n * 12) + * This method is equivalent to d << (n * 12). */ static VALUE d_lite_prev_year(int argc, VALUE *argv, VALUE self) @@ -6272,11 +6274,11 @@ cmp_dd(VALUE self, VALUE other) * should be a date object or a numeric value as an astronomical * Julian day number. * - * 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 + * 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. */ @@ -6416,8 +6418,8 @@ static VALUE strftimev(const char *, VALUE, * call-seq: * d.to_s -> string * - * Returns a string in an ISO 8601 format (This method doesn't use the - * expanded representations). + * Returns a string in an ISO 8601 format. (This method doesn't use the + * expanded representations.) * * Date.new(2001,2,3).to_s #=> "2001-02-03" */ @@ -6691,7 +6693,7 @@ date_strftime_internal(int argc, VALUE *argv, VALUE self, * * Formats date according to the directives in the given format * string. - * The directives begins with a percent (%) character. + * The directives begin with a percent (%) character. * Any text not listed as a directive will be passed through to the * output string. * @@ -6807,11 +6809,12 @@ date_strftime_internal(int argc, VALUE *argv, VALUE self, * %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. + * This method is similar to the 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 + * However, this method is locale independent. + * So, the result may differ even if the 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. @@ -6859,7 +6862,7 @@ date_strftime_internal(int argc, VALUE *argv, VALUE self, * %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. + * See also strftime(3) and ::strptime. */ static VALUE d_lite_strftime(int argc, VALUE *argv, VALUE self) @@ -7161,7 +7164,7 @@ date_s__load(VALUE klass, VALUE s) * call-seq: * DateTime.jd([jd=0[, hour=0[, minute=0[, second=0[, offset=0[, start=Date::ITALY]]]]]]) -> datetime * - * Creates a datetime object denoting the given chronological Julian + * Creates a DateTime object denoting the given chronological Julian * day number. * * DateTime.jd(2451944) #=> # @@ -7229,7 +7232,7 @@ datetime_s_jd(int argc, VALUE *argv, VALUE klass) * call-seq: * DateTime.ordinal([year=-4712[, yday=1[, hour=0[, minute=0[, second=0[, offset=0[, start=Date::ITALY]]]]]]]) -> datetime * - * Creates a date-time object denoting the given ordinal date. + * Creates a DateTime object denoting the given ordinal date. * * DateTime.ordinal(2001,34) #=> # * DateTime.ordinal(2001,34,4,5,6,'+7') @@ -7305,7 +7308,7 @@ datetime_s_ordinal(int argc, VALUE *argv, VALUE klass) * DateTime.civil([year=-4712[, month=1[, mday=1[, hour=0[, minute=0[, second=0[, offset=0[, start=Date::ITALY]]]]]]]]) -> datetime * DateTime.new([year=-4712[, month=1[, mday=1[, hour=0[, minute=0[, second=0[, offset=0[, start=Date::ITALY]]]]]]]]) -> datetime * - * Creates a date-time object denoting the given calendar date. + * Creates a DateTime object denoting the given calendar date. * * DateTime.new(2001,2,3) #=> # * DateTime.new(2001,2,3,4,5,6,'+7') @@ -7403,7 +7406,7 @@ datetime_s_civil(int argc, VALUE *argv, VALUE klass) * call-seq: * DateTime.commercial([cwyear=-4712[, cweek=1[, cwday=1[, hour=0[, minute=0[, second=0[, offset=0[, start=Date::ITALY]]]]]]]]) -> datetime * - * Creates a date-time object denoting the given week date. + * Creates a DateTime object denoting the given week date. * * DateTime.commercial(2001) #=> # * DateTime.commercial(2002) #=> # @@ -7620,7 +7623,7 @@ datetime_s_nth_kday(int argc, VALUE *argv, VALUE klass) * call-seq: * DateTime.now([start=Date::ITALY]) -> datetime * - * Creates a date-time object denoting the present time. + * Creates a DateTime object denoting the present time. * * DateTime.now #=> # */ @@ -7823,7 +7826,7 @@ dt_new_by_frags(VALUE klass, VALUE hash, VALUE sg) * 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. + * See also strptime(3) and #strftime. */ static VALUE datetime_s__strptime(int argc, VALUE *argv, VALUE klass) @@ -7833,10 +7836,10 @@ datetime_s__strptime(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.strptime([string='-4712-01-01T00:00:00+00:00'[, format='%FT%T%z'[ ,start=ITALY]]]) -> datetime + * DateTime.strptime([string='-4712-01-01T00:00:00+00:00'[, format='%FT%T%z'[ ,start=Date::ITALY]]]) -> datetime * * Parses the given representation of date and time with the given - * template, and creates a date object. strptime does not support + * template, and creates a DateTime object. strptime does not support * specification of flags and width unlike strftime. * * DateTime.strptime('2001-02-03T04:05:06+07:00', '%Y-%m-%dT%H:%M:%S%z') @@ -7856,7 +7859,7 @@ datetime_s__strptime(int argc, VALUE *argv, VALUE klass) * DateTime.strptime('sat3feb014pm+7', '%a%d%b%y%H%p%z') * #=> # * - * See also strptime(3) and strftime. + * See also strptime(3) and #strftime. */ static VALUE datetime_s_strptime(int argc, VALUE *argv, VALUE klass) @@ -7886,10 +7889,10 @@ datetime_s_strptime(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.parse(string='-4712-01-01T00:00:00+00:00'[, comp=true[, start=ITALY]]) -> datetime + * DateTime.parse(string='-4712-01-01T00:00:00+00:00'[, comp=true[, start=Date::ITALY]]) -> datetime * * Parses the given representation of date and time, and creates a - * date object. This method does not function as a validator. + * DateTime 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. @@ -7929,9 +7932,9 @@ datetime_s_parse(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.iso8601(string='-4712-01-01T00:00:00+00:00'[, start=ITALY]) -> datetime + * DateTime.iso8601(string='-4712-01-01T00:00:00+00:00'[, start=Date::ITALY]) -> datetime * - * Creates a new Date object by parsing from a string according to + * Creates a new DateTime object by parsing from a string according to * some typical ISO 8601 formats. * * DateTime.iso8601('2001-02-03T04:05:06+07:00') @@ -7963,9 +7966,9 @@ datetime_s_iso8601(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.rfc3339(string='-4712-01-01T00:00:00+00:00'[, start=ITALY]) -> datetime + * DateTime.rfc3339(string='-4712-01-01T00:00:00+00:00'[, start=Date::ITALY]) -> datetime * - * Creates a new Date object by parsing from a string according to + * Creates a new DateTime object by parsing from a string according to * some typical RFC 3339 formats. * * DateTime.rfc3339('2001-02-03T04:05:06+07:00') @@ -7993,9 +7996,9 @@ datetime_s_rfc3339(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.xmlschema(string='-4712-01-01T00:00:00+00:00'[, start=ITALY]) -> datetime + * DateTime.xmlschema(string='-4712-01-01T00:00:00+00:00'[, start=Date::ITALY]) -> datetime * - * Creates a new Date object by parsing from a string according to + * Creates a new DateTime object by parsing from a string according to * some typical XML Schema formats. * * DateTime.xmlschema('2001-02-03T04:05:06+07:00') @@ -8023,10 +8026,10 @@ datetime_s_xmlschema(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.rfc2822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) -> datetime - * DateTime.rfc822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=ITALY]) -> datetime + * DateTime.rfc2822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=Date::ITALY]) -> datetime + * DateTime.rfc822(string='Mon, 1 Jan -4712 00:00:00 +0000'[, start=Date::ITALY]) -> datetime * - * Creates a new Date object by parsing from a string according to + * Creates a new DateTime object by parsing from a string according to * some typical RFC 2822 formats. * * DateTime.rfc2822('Sat, 3 Feb 2001 04:05:06 +0700') @@ -8054,9 +8057,9 @@ datetime_s_rfc2822(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.httpdate(string='Mon, 01 Jan -4712 00:00:00 GMT'[, start=ITALY]) -> datetime + * DateTime.httpdate(string='Mon, 01 Jan -4712 00:00:00 GMT'[, start=Date::ITALY]) -> datetime * - * Creates a new Date object by parsing from a string according to + * Creates a new DateTime object by parsing from a string according to * some RFC 2616 format. * * DateTime.httpdate('Sat, 03 Feb 2001 04:05:06 GMT') @@ -8084,9 +8087,9 @@ datetime_s_httpdate(int argc, VALUE *argv, VALUE klass) /* * call-seq: - * DateTime.jisx0301(string='-4712-01-01T00:00:00+00:00'[, start=ITALY]) -> datetime + * DateTime.jisx0301(string='-4712-01-01T00:00:00+00:00'[, start=Date::ITALY]) -> datetime * - * Creates a new Date object by parsing from a string according to + * Creates a new DateTime object by parsing from a string according to * some typical JIS X 0301 formats. * * DateTime.jisx0301('H13.02.03T04:05:06+07:00') @@ -8116,8 +8119,8 @@ datetime_s_jisx0301(int argc, VALUE *argv, VALUE klass) * call-seq: * dt.to_s -> string * - * Returns a string in an ISO 8601 format (This method doesn't use the - * expanded representations). + * 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 * #=> "2001-02-03T04:05:06-07:00" @@ -8134,7 +8137,7 @@ dt_lite_to_s(VALUE self) * * Formats date according to the directives in the given format * string. - * The directives begins with a percent (%) character. + * The directives begin with a percent (%) character. * Any text not listed as a directive will be passed through to the * output string. * @@ -8155,7 +8158,7 @@ dt_lite_to_s(VALUE self) * * The minimum field width specifies the minimum width. * - * The modifier is "E" and "O". + * The modifiers are "E" and "O". * They are ignored. * * Format directives: @@ -8251,11 +8254,12 @@ dt_lite_to_s(VALUE self) * %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. + * This method is similar to the 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 + * However, this method is locale independent. + * So, the result may differ even if the 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. @@ -8303,7 +8307,7 @@ dt_lite_to_s(VALUE self) * %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. + * See also strftime(3) and ::strptime. */ static VALUE dt_lite_strftime(int argc, VALUE *argv, VALUE self) @@ -8334,7 +8338,7 @@ iso8601_timediv(VALUE self, long n) * dt.xmlschema([n=0]) -> string * * This method is equivalent to strftime('%FT%T'). The optional - * argument n is length of fractional seconds. + * argument +n+ is the number of digits for fractional seconds. * * DateTime.parse('2001-02-03T04:05:06.123456789+07:00').iso8601(9) * #=> "2001-02-03T04:05:06.123456789+07:00" @@ -9003,13 +9007,13 @@ Init_date_core(void) /* * date and datetime class - Tadayoshi Funaba 1998-2011 * - * 'date' provides two classes Date and DateTime. + * 'date' provides two classes: Date and DateTime. * - * == Terms and definitions + * == Terms and Definitions * * Some terms and definitions are based on ISO 8601 and JIS X 0301. * - * === calendar date + * === Calendar Date * * The calendar date is a particular day of a calendar year, * identified by its ordinal number within a calendar month within @@ -9017,14 +9021,14 @@ Init_date_core(void) * * In those classes, this is so-called "civil". * - * === ordinal date + * === Ordinal Date * * The ordinal date is a particular day of a calendar year identified * by its ordinal number within the year. * * In those classes, this is so-called "ordinal". * - * === week date + * === Week Date * * The week date is a date identified by calendar week and day numbers. * @@ -9034,15 +9038,15 @@ Init_date_core(void) * includes the first Thursday of that year. In the Gregorian * calendar, this is equivalent to the week which includes January 4. * - * In those classes, this so-called "commercial". + * In those classes, this is so-called "commercial". * - * === julian day number + * === Julian Day Number * - * The Julian day number is in elapsed days since noon (Greenwich mean - * time) on January 1, 4713 BCE (in the Julian calendar). + * The Julian day number is in elapsed days since noon (Greenwich Mean + * Time) on January 1, 4713 BCE (in the Julian calendar). * - * In this document, the astronomical Julian day number is same as the - * original Julian day number. And the chronological Julian day + * In this document, the astronomical Julian day number is the same as + * the original Julian day number. And the chronological Julian day * number is a variation of the Julian day number. Its days begin at * midnight on local time. * @@ -9052,14 +9056,14 @@ Init_date_core(void) * * In those classes, those are so-called "ajd" and "jd". * - * === modified julian day number + * === Modified Julian Day Number * * The modified Julian day number is in elapsed days since midnight - * (Coordinated universal time) on November 17, 1858 CE (in the + * (Coordinated Universal Time) on November 17, 1858 CE (in the * Gregorian calendar). * * In this document, the astronomical modified Julian day number is - * same as the original modified Julian day number. And the + * the same as the original modified Julian day number. And the * chronological modified Julian day number is a variation of the * modified Julian day number. Its days begin at midnight on local * time. @@ -9068,16 +9072,16 @@ Init_date_core(void) * appears, it just refers to "chronological modified Julian day * number", not the original. * - * In those classes, this is so-called "mjd". + * In those classes, those are so-called "amjd" and "mjd". * * == Date * - * A subclass of Object that includes Comparable module and easily handles - * date. + * A subclass of Object that includes the Comparable module and + * easily handles date. * - * Date object is created with Date::new, Date::jd, Date::ordinal, + * A Date object is created with Date::new, Date::jd, Date::ordinal, * Date::commercial, Date::parse, Date::strptime, Date::today, - * Time#to_date or etc. + * Time#to_date, etc. * * require 'date' * @@ -9098,7 +9102,7 @@ Init_date_core(void) * * All date objects are immutable; hence cannot modify themselves. * - * The concept of this date object can be represented as a tuple + * The concept of a date object can be represented as a tuple * of the day count, the offset and the day of calendar reform. * * The day count denotes the absolute position of a temporal @@ -9113,10 +9117,11 @@ Init_date_core(void) * The offset in this class is usually zero, and cannot be * specified directly. * - * An optional argument the day of calendar reform (start) as a - * Julian day number, which should be 2298874 to 2426355 or -/+oo. - * The default value is Date::ITALY (2299161=1582-10-15). See - * also sample/cal.rb. + * A Date object can be created with an optional argument, + * the day of calendar reform as a Julian day number, which + * should be 2298874 to 2426355 or negative/positive infinity. + * The default value is +Date::ITALY+ (2299161=1582-10-15). + * See also sample/cal.rb. * * $ ruby sample/cal.rb -c it 10 1582 * October 1582 @@ -9133,7 +9138,7 @@ Init_date_core(void) * 17 18 19 20 21 22 23 * 24 25 26 27 28 29 30 * - * Date object has various methods. See each reference. + * A Date object has various methods. See each reference. * * d = Date.parse('3rd Feb 2001') * #=> # @@ -9181,12 +9186,12 @@ Init_date_core(void) rb_define_const(cDate, "ENGLAND", INT2FIX(ENGLAND)); /* The Julian day number of the day of calendar reform for the - * proleptic Julian calendar + * proleptic Julian calendar. */ rb_define_const(cDate, "JULIAN", DBL2NUM(JULIAN)); /* The Julian day number of the day of calendar reform for the - * proleptic Gregorian calendar + * proleptic Gregorian calendar. */ rb_define_const(cDate, "GREGORIAN", DBL2NUM(GREGORIAN)); @@ -9394,48 +9399,49 @@ Init_date_core(void) /* * == DateTime * - * A subclass of Date that easily handles date, hour, minute, second and - * offset. + * A subclass of Date that easily handles date, hour, minute, second, + * and offset. * * DateTime does not consider any leap seconds, does not track * any summer time rules. * - * DateTime object is created with DateTime::new, DateTime::jd, + * A DateTime object is created with DateTime::new, DateTime::jd, * DateTime::ordinal, DateTime::commercial, DateTime::parse, - * DateTime::strptime, DateTime::now, Time#to_datetime or etc. + * DateTime::strptime, DateTime::now, Time#to_datetime, etc. * * require 'date' * * DateTime.new(2001,2,3,4,5,6) * #=> # * - * The last element of day, hour, minute or second can be + * The last element of day, hour, minute, or second can be a * fractional number. The fractional number's precision is assumed * at most nanosecond. * * DateTime.new(2001,2,3.5) * #=> # * - * An optional argument the offset indicates the difference + * An optional argument, the offset, indicates the difference * between the local time and UTC. For example, Rational(3,24) * represents ahead of 3 hours of UTC, Rational(-5,24) represents * behind of 5 hours of UTC. The offset should be -1 to +1, and * its precision is assumed at most second. The default value is - * zero(equals to UTC). + * zero (equals to UTC). * * DateTime.new(2001,2,3,4,5,6,Rational(3,24)) * #=> # * - * also accepts string form. + * The offset also accepts string form: * * DateTime.new(2001,2,3,4,5,6,'+03:00') * #=> # * - * An optional argument the day of calendar reform (start) denotes + * An optional argument, the day of calendar reform (+start+), denotes * a Julian day number, which should be 2298874 to 2426355 or - * -/+oo. The default value is +Date::ITALY+ (2299161=1582-10-15). + * negative/positive infinity. + * The default value is +Date::ITALY+ (2299161=1582-10-15). * - * DateTime object has various methods. See each reference. + * A DateTime object has various methods. See each reference. * * d = DateTime.parse('3rd Feb 2001 04:05:06+03:30') * #=> # @@ -9462,22 +9468,22 @@ Init_date_core(void) * died on the same day in history - * so much so that UNESCO named April 23 as * {World Book Day because of this fact}[http://en.wikipedia.org/wiki/World_Book_Day]. - * However because England hadn't yet adopted + * However, because England hadn't yet adopted the * {Gregorian Calendar Reform}[http://en.wikipedia.org/wiki/Gregorian_calendar#Gregorian_reform] * (and wouldn't until {1752}[http://en.wikipedia.org/wiki/Calendar_(New_Style)_Act_1750]) * their deaths are actually 10 days apart. * Since Ruby's Time class implements a * {proleptic Gregorian calendar}[http://en.wikipedia.org/wiki/Proleptic_Gregorian_calendar] - * and has no concept of calendar reform then there's no way - * to express this. This is where DateTime steps in: + * and has no concept of calendar reform there's no way + * to express this with Time objects. This is where DateTime steps in: * * shakespeare = DateTime.iso8601('1616-04-23', Date::ENGLAND) * #=> Tue, 23 Apr 1616 00:00:00 +0000 * cervantes = DateTime.iso8601('1616-04-23', Date::ITALY) * #=> Sat, 23 Apr 1616 00:00:00 +0000 * - * Already you can see something's weird - the days of the week - * are different, taking this further: + * Already you can see something is weird - the days of the week + * are different. Taking this further: * * cervantes == shakespeare * #=> false -- cgit v1.2.3