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ruby-changes:71703

From: usa <ko1@a...>
Date: Tue, 12 Apr 2022 20:03:25 +0900 (JST)
Subject: [ruby-changes:71703] fa7f75ddda (ruby_2_6): Backport date-2.0.3 for Reiwa Support [Backport #18514]

https://git.ruby-lang.org/ruby.git/commit/?id=fa7f75ddda

From fa7f75ddda0eb01bc78363ced78d270cb55931ba Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 12 Apr 2022 11:03:11 +0000
Subject: Backport date-2.0.3 for Reiwa Support [Backport #18514]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67956 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/date/date_core.c            | 15 ++++++++-
 ext/date/date_parse.c           | 12 ++++---
 ext/date/lib/date.rb            |  2 +-
 test/date/test_date_parse.rb    | 72 +++++++++++++++++++++++++++++++++++++++++
 test/date/test_date_strftime.rb |  7 +++-
 version.h                       |  4 +--
 6 files changed, 103 insertions(+), 9 deletions(-)

diff --git a/ext/date/date_core.c b/ext/date/date_core.c
index 918e61234c..1734ec0349 100644
--- a/ext/date/date_core.c
+++ b/ext/date/date_core.c
@@ -4755,6 +4755,10 @@ date_s__jisx0301(int argc, VALUE *argv, VALUE klass) https://github.com/ruby/ruby/blob/trunk/ext/date/date_core.c#L4755
  *
  *    Date.jisx0301('H13.02.03')		#=> #<Date: 2001-02-03 ...>
  *
+ * For no-era year, legacy format, Heisei is assumed.
+ *
+ *    Date.jisx0301('13.02.03') 		#=> #<Date: 2001-02-03 ...>
+ *
  * Raise an ArgumentError when the string length is longer than _limit_.
  * You can stop this check by passing `limit: nil`, but note that
  * it may take a long time to parse.
@@ -7190,10 +7194,14 @@ jisx0301_date_format(char *fmt, size_t size, VALUE jd, VALUE y) https://github.com/ruby/ruby/blob/trunk/ext/date/date_core.c#L7194
 	    c = 'S';
 	    s = 1925;
 	}
-	else {
+	else if (d < 2458605) {
 	    c = 'H';
 	    s = 1988;
 	}
+	else {
+	    c = 'R';
+	    s = 2018;
+	}
 	snprintf(fmt, size, "%c%02ld" ".%%m.%%d", c, FIX2INT(y) - s);
 	return fmt;
     }
@@ -8358,6 +8366,11 @@ datetime_s_httpdate(int argc, VALUE *argv, VALUE klass) https://github.com/ruby/ruby/blob/trunk/ext/date/date_core.c#L8366
  *    DateTime.jisx0301('H13.02.03T04:05:06+07:00')
  *				#=> #<DateTime: 2001-02-03T04:05:06+07:00 ...>
  *
+ * For no-era year, legacy format, Heisei is assumed.
+ *
+ *    DateTime.jisx0301('13.02.03T04:05:06+07:00')
+ *				#=> #<DateTime: 2001-02-03T04:05:06+07:00 ...>
+ *
  * Raise an ArgumentError when the string length is longer than _limit_.
  * You can stop this check by passing `limit: nil`, but note that
  * it may take a long time to parse.
diff --git a/ext/date/date_parse.c b/ext/date/date_parse.c
index 69ac37f0a3..f06c07bae4 100644
--- a/ext/date/date_parse.c
+++ b/ext/date/date_parse.c
@@ -1212,6 +1212,9 @@ parse_iso2(VALUE str, VALUE hash) https://github.com/ruby/ruby/blob/trunk/ext/date/date_parse.c#L1212
     return 1;
 }
 
+#define JISX0301_ERA_INITIALS "mtshr"
+#define JISX0301_DEFAULT_ERA 'H' /* obsolete */
+
 static int
 gengo(int c)
 {
@@ -1222,6 +1225,7 @@ gengo(int c) https://github.com/ruby/ruby/blob/trunk/ext/date/date_parse.c#L1225
       case 'T': case 't': e = 1911; break;
       case 'S': case 's': e = 1925; break;
       case 'H': case 'h': e = 1988; break;
+      case 'R': case 'r': e = 2018; break;
       default:  e = 0; break;
     }
     return e;
@@ -1252,11 +1256,11 @@ parse_jis(VALUE str, VALUE hash) https://github.com/ruby/ruby/blob/trunk/ext/date/date_parse.c#L1256
 {
     static const char pat_source[] =
 #ifndef TIGHT_PARSER
-	"\\b([mtsh])(\\d+)\\.(\\d+)\\.(\\d+)"
+        "\\b([" JISX0301_ERA_INITIALS "])(\\d+)\\.(\\d+)\\.(\\d+)"
 #else
 	BOS
 	FPW_COM FPT_COM
-	"([mtsh])(\\d+)\\.(\\d+)\\.(\\d+)"
+        "([" JISX0301_ERA_INITIALS "])(\\d+)\\.(\\d+)\\.(\\d+)"
 	TEE_FPT COM_FPW
 	EOS
 #endif
@@ -2954,7 +2958,7 @@ jisx0301_cb(VALUE m, VALUE hash) https://github.com/ruby/ruby/blob/trunk/ext/date/date_parse.c#L2958
 	    s[i] = rb_reg_nth_match(i, m);
     }
 
-    ep = gengo(NIL_P(s[1]) ? 'h' : *RSTRING_PTR(s[1]));
+    ep = gengo(NIL_P(s[1]) ? JISX0301_DEFAULT_ERA : *RSTRING_PTR(s[1]));
     set_hash("year", f_add(str2num(s[2]), INT2FIX(ep)));
     set_hash("mon", str2num(s[3]));
     set_hash("mday", str2num(s[4]));
@@ -2979,7 +2983,7 @@ static int https://github.com/ruby/ruby/blob/trunk/ext/date/date_parse.c#L2983
 jisx0301(VALUE str, VALUE hash)
 {
     static const char pat_source[] =
-	"\\A\\s*([mtsh])?(\\d{2})\\.(\\d{2})\\.(\\d{2})"
+        "\\A\\s*([" JISX0301_ERA_INITIALS "])?(\\d{2})\\.(\\d{2})\\.(\\d{2})"
 	"(?:t"
 	"(?:(\\d{2}):(\\d{2})(?::(\\d{2})(?:[,.](\\d*))?)?"
 	"(z|[-+]\\d{2}(?::?\\d{2})?)?)?)?\\s*\\z";
diff --git a/ext/date/lib/date.rb b/ext/date/lib/date.rb
index 3556b9295f..cea63b1259 100644
--- a/ext/date/lib/date.rb
+++ b/ext/date/lib/date.rb
@@ -4,7 +4,7 @@ https://github.com/ruby/ruby/blob/trunk/ext/date/lib/date.rb#L4
 require 'date_core'
 
 class Date
-  VERSION = '2.0.2' # :nodoc:
+  VERSION = '2.0.3' # :nodoc:
 
   class Infinity < Numeric # :nodoc:
 
diff --git a/test/date/test_date_parse.rb b/test/date/test_date_parse.rb
index 5bc2cebf82..d1163b29cb 100644
--- a/test/date/test_date_parse.rb
+++ b/test/date/test_date_parse.rb
@@ -1020,6 +1020,15 @@ class TestDateParse < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/date/test_date_parse.rb#L1020
     h = Date._jisx0301('S63.02.03')
     assert_equal([1988, 2, 3, nil, nil, nil, nil],
 		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.04.30')
+    assert_equal([2019, 4, 30, nil, nil, nil, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.05.01')
+    assert_equal([2019, 5, 1, nil, nil, nil, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('R01.05.01')
+    assert_equal([2019, 5, 1, nil, nil, nil, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
 
     h = Date._jisx0301('H13.02.03T04:05:06')
     assert_equal([2001, 2, 3, 4, 5, 6, nil],
@@ -1034,6 +1043,45 @@ class TestDateParse < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/date/test_date_parse.rb#L1043
     assert_equal([2001, 2, 3, 4, 5, 6, 3600],
 		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
 
+    h = Date._jisx0301('H31.04.30T04:05:06')
+    assert_equal([2019, 4, 30, 4, 5, 6, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.04.30T04:05:06,07')
+    assert_equal([2019, 4, 30, 4, 5, 6, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.04.30T04:05:06Z')
+    assert_equal([2019, 4, 30, 4, 5, 6, 0],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.04.30T04:05:06.07+0100')
+    assert_equal([2019, 4, 30, 4, 5, 6, 3600],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+
+    h = Date._jisx0301('H31.05.01T04:05:06')
+    assert_equal([2019, 5, 1, 4, 5, 6, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.05.01T04:05:06,07')
+    assert_equal([2019, 5, 1, 4, 5, 6, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.05.01T04:05:06Z')
+    assert_equal([2019, 5, 1, 4, 5, 6, 0],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('H31.05.01T04:05:06.07+0100')
+    assert_equal([2019, 5, 1, 4, 5, 6, 3600],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+
+    h = Date._jisx0301('R01.05.01T04:05:06')
+    assert_equal([2019, 5, 1, 4, 5, 6, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('R01.05.01T04:05:06,07')
+    assert_equal([2019, 5, 1, 4, 5, 6, nil],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('R01.05.01T04:05:06Z')
+    assert_equal([2019, 5, 1, 4, 5, 6, 0],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+    h = Date._jisx0301('R01.05.01T04:05:06.07+0100')
+    assert_equal([2019, 5, 1, 4, 5, 6, 3600],
+		 h.values_at(:year, :mon, :mday, :hour, :min, :sec, :offset))
+
     h = Date._jisx0301('')
     assert_equal({}, h)
 
@@ -1126,9 +1174,33 @@ class TestDateParse < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/date/test_date_parse.rb#L1174
     assert_equal(Date.new(2001,2,3), d)
     assert_equal(Date::ITALY + 10, d.start)
 
+    d = Date.jisx0301('H31.04.30', Date::ITALY + 10)
+    assert_equal(Date.new(2019,4,30), d)
+    assert_equal(Date::ITALY + 10, d.start)
+
+    d = Date.jisx0301('H31.05.01', Date::ITALY + 10)
+    assert_equal(Date.new(2019,5,1), d)
+    assert_equal(Date::ITALY + 10, d.start)
+
+    d = Date.jisx0301('R01.05.01', Date::ITALY + 10)
+    assert_equal(Date.new(2019,5,1), d)
+    assert_equal(Date::ITALY + 10, d.start)
+
     d = DateTime.jisx0301('H13.02.03T04:05:06+07:00', Date::ITALY + 10)
     assert_equal(DateTime.new(2001,2,3,4,5,6,'+07:00'), d)
     assert_equal(Date::ITALY + 10, d.start)
+
+    d = DateTime.jisx0301('H31.04.30T04:05:06+07:00', Date::ITALY + 10)
+    assert_equal(DateTime.new(2019,4,30,4,5,6,'+07:00'), d)
+    assert_equal(Date::ITALY + 10, d.start)
+
+    d = DateTime.jisx0301('H31.05.01T04:05:06+07:00', Date::ITALY + 10)
+    assert_equal(DateTime.new(2019,5,1,4,5,6,'+07:00'), d)
+    assert_equal(Date::ITALY + 10, d.start)
+
+    d = DateTime.jisx0301('R01.05.01T04:05:06+07:00', Date::ITALY + 10)
+    assert_equal(DateTime.new(2019,5,1,4,5,6,'+07:00'), d)
+    assert_equal(Date::ITALY + 10, d.start)
   end
 
   def test_given_string
diff --git a/test/date/test_date_strftime.rb b/test/date/test_date_strftime.rb
index a33eaa340f..dc237a909d 100644
--- a/test/date/test_date_strftime.rb
+++ b/test/date/test_date_strftime.rb
@@ -406,6 +406,8 @@ class TestDateStrftime < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/date/test_date_strftime.rb#L406
     assert_equal('S64.01.07', Date.parse('1989-01-07').jisx0301)
     assert_equal('H01.01.08', Date.parse('1989-01-08').jisx0301)
     assert_equal('H18.09.01', Date.parse('2006-09-01').jisx0301)
+    assert_equal('H31 (... truncated)

--
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