Regex with named capture groups getting all matches in Ruby

Question

I have a string:

s=\"123--abc,123--abc,123--abc\"

I tried using Ruby 1.9\'s new feature \"named groups\" to fetch all named group info:

Answer 1

@Nakilon is correct showing scan with a regex, however you don't even need to venture into regex land if you don't want to:

s = "123--abc,123--abc,123--abc"
s.split(',')
#=> ["123--abc", "123--abc", "123--abc"]

s.split(',').inject([]) { |a,s| a << s.split('--'); a }
#=> [["123", "abc"], ["123", "abc"], ["123", "abc"]]

This returns an array of arrays, which is convenient if you have multiple occurrences and need to see/process them all.

s.split(',').inject({}) { |h,s| n,v = s.split('--'); h[n] = v; h }
#=> {"123"=>"abc"}

This returns a hash, which, because the elements have the same key, has only the unique key value. This is good when you have a bunch of duplicate keys but want the unique ones. Its downside occurs if you need the unique values associated with the keys, but that appears to be a different question.