parse.y: fix a typo

* parse.y (regexp_contents): fix a typo.  pointed out by wanabe.
  [ruby-dev:48741] [Bug #10543]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48655 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 20 insertions, 0 deletions

diff --git a/test/ripper/test_sexp.rb b/test/ripper/test_sexp.rb
index 9be4aa7d41..adf8c46ec7 100644
--- a/test/ripper/test_sexp.rb
+++ b/test/ripper/test_sexp.rb
@@ -18,4 +18,24 @@ class TestRipper::Sexp < Test::Unit::TestCase
     assert_nil Ripper.sexp("/*/")
     assert_nil Ripper.sexp("/+/")
   end
+
+  def test_regexp_content
+    sexp = Ripper.sexp('//')
+    assert_nil search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))
+
+    sexp = Ripper.sexp('/foo/')
+    assert_equal 'foo', search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
+
+    sexp = Ripper.sexp('/(?<n>a(b|\g<n>))/')
+    assert_equal '(?<n>a(b|\g<n>))', search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
+  end
+
+  def search_sexp(sym, sexp)
+    return sexp if !sexp or sexp[0] == sym
+    sexp.find do |e|
+      if Array === e and e = search_sexp(sym, e)
+        return e
+      end
+    end
+  end
 end if ripper_test