Add Ruby 2.6 fixing issues #233
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* Remove existing Tokens#filter (Array#filter) for Ruby 2.6 compatibility. * Install proper version's rdoc considering installed Ruby version.
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Thank you for figuring out the solution to the |
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Thanks for merging! |
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This PR is for Ruby 2.6 compatibility.
As Array#filter is a new alias for Array#select on Ruby 2.6, we need to remove the method in Tokens.
https://github.com/ruby/ruby/blob/trunk/doc/NEWS-2.6.0
I added 2 assertions, because Enumerate#filter returns
Enumerateobject notTokensobject when we does not remove Enumerate#filter.