Merge pull request #691 from timothysmith0609/looser_flag_detection

 🌈 More accurate Arguments#current_is_value? check

lib/thor/parser/arguments.rb

@@ -82,7 +82,7 @@ def unshift(arg)
     end
 
     def current_is_value?
-      peek && peek.to_s !~ /^-/
+      peek && peek.to_s !~ /^-{1,2}\S+/
     end
 
     # Runs through the argument array getting strings that contains ":" and

spec/parser/arguments_spec.rb

@@ -40,6 +40,12 @@ def parse(*args)
       expect(parse("product", "title", "age")["array"]).to eq(%w(title age))
     end
 
+    it "accepts - as an array argument" do
+      create :array => nil
+      expect(parse("-")["array"]).to eq(%w(-))
+      expect(parse("-", "title", "-")["array"]).to eq(%w(- title -))
+    end
+
     describe "with no inputs" do
       it "and no arguments returns an empty hash" do
         create