Fix a bug that flag value is processed as flag

If flag value starts with "-", unknown option error is raised.

The current flag value check is "orig_arg == opt.value.to_s". There
are some objects such as Regexp and Time that input value and its #to_s
aren't same.

1 files changed, 6 insertions, 0 deletions

diff --git a/test/parser_test.rb b/test/parser_test.rb
index caee0dd..ef09714 100644
--- a/test/parser_test.rb
+++ b/test/parser_test.rb
@@ -35,6 +35,12 @@ describe Slop::Parser do
     assert_equal "--sometext", @result[:text]
   end
 
+  it "parses regexp arg with leading -" do
+    @options.regexp "--pattern"
+    @result.parser.parse %w(--pattern -x)
+    assert_equal(/-x/, @result[:pattern])
+  end
+
   it "parses negative integer" do
     @options.integer "-p", "--port"
     @result.parser.parse %w(--name=bob --port -123)