You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: editor.rb
    path of file: ./repos/better_errors/lib/better_errors
    
    the code of the file until where you have to start completion: require "uri"

module BetterErrors
  class Editor
    KNOWN_EDITORS = [
      { symbols:
    
    def url(raw_path, line)
      if virtual_path && raw_path.start_with?(virtual_path)
        if host_path
          file = raw_path.sub(%r{\A#{virtual_path}}, host_path)
        else
          file = raw_path.sub(%r{\A#{virtual_path}/}, '')
        end