# File lib/active_support/json/backends/okjson.rb, line 246
    def strtok(s)
      m = /"([^"\\]|\\["\/\\bfnrt]|\\u[0-9a-fA-F]{4})*"/.match(s)
      if ! m
        raise Error, "invalid string literal at #{abbrev(s)}"
      end
      [:str, m[0], unquote(m[0])]
    end