merge revision(s) bb59696614083660241ef272f222628cbfa95844: [Backport #20098] (#10298)

Fix [Bug #20098]: set counter value for {n,m} repetition correctly (#9391)

1 files changed, 8 insertions, 0 deletions

diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index 91a9f0a96c..0d6ab4682d 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -2008,6 +2008,14 @@ class TestRegexp < Test::Unit::TestCase
     end
   end
 
+  def test_bug_20098 # [Bug #20098]
+    assert /a((.|.)|bc){,4}z/.match? 'abcbcbcbcz'
+    assert /a(b+?c*){4,5}z/.match? 'abbbccbbbccbcbcz'
+    assert /a(b+?(.|.)){2,3}z/.match? 'abbbcbbbcbbbcz'
+    assert /a(b*?(.|.)[bc]){2,5}z/.match? 'abcbbbcbcccbcz'
+    assert /^(?:.+){2,4}?b|b/.match? "aaaabaa"
+  end
+
   def test_linear_time_p
     assert_send [Regexp, :linear_time?, /a/]
     assert_send [Regexp, :linear_time?, 'a']