Merge pull request #167 from spk/regexp-support-4.1

Added support for Regexp

2 files changed, 20 insertions, 0 deletions

diff --git a/lib/slop/types.rb b/lib/slop/types.rb
index df67aee..ad7461c 100644
--- a/lib/slop/types.rb
+++ b/lib/slop/types.rb
@@ -61,6 +61,13 @@ module Slop
     end
   end
 
+  # Cast the option argument to a Regexp.
+  class RegexpOption < Option
+    def call(value)
+      Regexp.new(value)
+    end
+  end
+
   # An option that discards the return value, inherits from Bool
   # since it does not expect an argument.
   class NullOption < BoolOption
diff --git a/test/types_test.rb b/test/types_test.rb
index 39cccc9..81ae3ba 100644
--- a/test/types_test.rb
+++ b/test/types_test.rb
@@ -100,3 +100,16 @@ describe Slop::NullOption do
     assert_equal({}, @result.to_hash)
   end
 end
+
+describe Slop::RegexpOption do
+  before do
+    @options       = Slop::Options.new
+    @exclude       = @options.regexp "--exclude"
+    @exclude_value = "redirect|news"
+    @result        = @options.parse %W(--exclude #{@exclude_value})
+  end
+
+  it "returns the value as a Regexp" do
+    assert_equal Regexp.new(@exclude_value), @result[:exclude]
+  end
+end