Imports
- github.com/monochromegane/the_platinum_searcher/search/file
- github.com/monochromegane/the_platinum_searcher/search/grep
- github.com/monochromegane/the_platinum_searcher/search/ignore
- github.com/monochromegane/the_platinum_searcher/search/option
- github.com/monochromegane/the_platinum_searcher/search/pattern