在Ruby gsub块（regex）中使用命名捕获组

Question

I'm trying to use a named capture group inside a block in Ruby. $1 still works, but I'd like to reference it using the name I gave.

"foo /(bar)".gsub(/(?<my_word> \(.*?\) )/x) do |match|
  puts "$1 = #{$1} and $my_word = #{$my_word}"
end

Expected: $1 = (bar) and $my_word = (bar)

Answer 1

You are looking for

"foo /(bar)".gsub(/(?<my_word> \(.*?\) )/x) do |match|
  puts "$1 = #{$1} and $my_word = #{$~[:my_word]}"
end