How to do named capture in ruby

Question

I want to name the capture of string that I get from scan. How to do it?

\"555-333-7777\".scan(/(\\d{3})-(\\d{3})-(\\d{4})/).flatten #=> [\"555\", \"333\", \"         


        

Answer 1

Something like this?

"555-333-7777" =~ /^(?\d+)\-(?\d+)\-(?\d+)$/
Hash[$~.names.collect{|x| [x.to_sym, $~[x]]}]
 => {:area=>"555", :city=>"333", :local=>"7777"}

Bonus version:

Hash[[:area, :city, :local].zip("555-333-7777".split("-"))]
=> {:area=>"555", :city=>"333", :local=>"7777"}