I read that this library is extracted from Ruby Builder library, which is licensed under the MIT (Expat). The file lib/blankslate.rb has a header citing just one part of the license. If you distribute blankslate under the same terms are Builder, could you include a file indicating explicitely the license used?
The latest blankslate gem [https://rubygems.org/gems/blankslate/versions/3.1.2] is newer than the current repo code. Please would it be possible to update the repo code?
Please note that the gem is missing test/preload.rb file from its parent - builder gem.
The gem also contains leftover test files from its parent: test/test_eventbuilder.rb, test/test_markupbuilder.rb, test/test_method_caching.rb, test/test_namecollision.rb and test/test_xchar.rb.