parse.y: refine error message

* parse.y (parser_number_literal_suffix): refine error message for
  extra dot and digits.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46179 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index 0847c28bfc..0e8a5ee478 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -426,6 +426,15 @@ eom
     end
   end
 
+  def test_unexpected_fraction
+    msg = /unexpected fraction/
+    assert_syntax_error("0x0.0", msg)
+    assert_syntax_error("0b0.0", msg)
+    assert_syntax_error("0d0.0", msg)
+    assert_syntax_error("0o0.0", msg)
+    assert_syntax_error("0.0.0", msg)
+  end
+
   private
 
   def not_label(x) @result = x; @not_label ||= nil end