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

@Phrogz's answer is correct if all of your captures have unique names, but you're allowed to give multiple captures the same name. Here's an example from the Regexp documentation.

This code supports captures with duplicate names:

captures = Hash[
  dimensions.regexp.named_captures.map do |name, indexes|
    [
      name,
      indexes.map { |i| dimensions.captures[i - 1] }
    ]
  end
]

# Iterate over the captures
captures.each do |name, values|
  # name is a String
  # values is an Array of Strings
end