Fix regexp to complete complex literal

IRB completion logic always needed exponential notation for complex literal
such as 3e6i but it's bug. I fixed to support complex literal without
exponential notation such as 3i.

1 files changed, 5 insertions, 0 deletions

diff --git a/test/irb/test_completion.rb b/test/irb/test_completion.rb
index 204b321ce1..7cfcbba7fe 100644
--- a/test/irb/test_completion.rb
+++ b/test/irb/test_completion.rb
@@ -19,5 +19,10 @@ module TestIRB
         skip "cannot load irb/completion"
       end
     end
+
+    def test_complete_numeric
+      assert_include(IRB::InputCompletor.retrieve_completion_data("1r.positi", bind: binding), "1r.positive?")
+      assert_empty(IRB::InputCompletor.retrieve_completion_data("1i.positi", bind: binding))
+    end
   end
 end