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re.c: fix match?

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* re.c (rb_reg_match_m_p): fix match against empty string.
  rb_str_offset returns the end when the position exceeds the
  length.  fix the range parameter of onig_search.
  [ruby-core:75604] [Bug #12394]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55069 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-05-19 03:10:12 +00:00
parent 0c221f631c
commit a28c12af14
3 changed files with 24 additions and 13 deletions
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7
test/ruby/test_regexp.rb
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@ -528,14 +528,21 @@ class TestRegexp < Test::Unit::TestCase
def test_match_p
/backref/ =~ 'backref'
# must match here, but not in a separate method, e.g., assert_send,
# to check if $~ is affected or not.
assert_equal(false, //.match?(nil))
assert_equal(true, //.match?(""))
assert_equal(true, /.../.match?(:abc))
assert_raise(TypeError) { /.../.match?(Object.new) }
assert_equal(true, /b/.match?('abc'))
assert_equal(true, /b/.match?('abc', 1))
assert_equal(true, /../.match?('abc', 1))
assert_equal(true, /../.match?('abc', -2))
assert_equal(false, /../.match?("abc", -4))
assert_equal(false, /../.match?("abc", 4))
assert_equal(true, /../n.match?("\u3042" + '\x', 1))
assert_equal(true, /\z/.match?(""))
assert_equal(true, /\z/.match?("abc"))
assert_equal('backref', $&)
end