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Using named capture groups inside Ruby gsub blocks (regex)

原文 2013-05-16 04:50:37 9 1 ruby/ regex/ gsub

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)

1 answers

You are looking for

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

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