Convert named matches in MatchData to Hash

Question

I have a rather simple regexp, but I wanted to use named regular expressions to make it cleaner and then iterate over results.

Testing string:

testing_s         


        

Answer 1

So today a new Ruby version (2.4.0) was released which includes many new features, amongst them feature #11999, aka MatchData#named_captures. This means you can now do this:

h = '12'.match(/(?.)(?.)(?.)?/).named_captures
#=> {"a"=>"1", "b"=>"2", "c"=>nil}
h.class
#=> Hash

So in your code change

dimensions = regexp.match(testing_string)

to

dimensions = regexp.match(testing_string).named_captures

And you can use the each method on your regex match result just like on any other Hash, too.