ripper: fix %-op on_operator_ambiguous

* parse.y (ambiguous_operator): separate token and string
  representation of operators, to fix %-operator argument.  in a
  warning message, needs to be escaped by '%' but the symbol
  should not be.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 1 deletions

diff --git a/test/ripper/test_parser_events.rb b/test/ripper/test_parser_events.rb
index 7af2019a09..7eac20a3ec 100644
--- a/test/ripper/test_parser_events.rb
+++ b/test/ripper/test_parser_events.rb
@@ -173,8 +173,14 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
 
   def test_operator_ambiguous
     thru_operator_ambiguous = false
-    parse('a=1; a %[]', :on_operator_ambiguous) {thru_operator_ambiguous = true}
+    token = syntax = nil
+    parse('a=1; a %[]', :on_operator_ambiguous) {|*a|
+      thru_operator_ambiguous = true
+      _, token, syntax = *a
+    }
     assert_equal true, thru_operator_ambiguous
+    assert_equal :%, token
+    assert_equal "string literal", syntax
   end
 
   def test_array   # array literal