Changing delimiters causes escaping issues

[misfo]

Since delimiters of strings and arrays are changed, their contents can become incorrectly escaped:

irb> puts Sorcerer.source(Ripper::SexpBuilder.new(%{'"'}).parse)
"""
=> nil
irb> puts Sorcerer.source(Ripper::SexpBuilder.new("%w[hi} low]").parse)
%w{hi} low}
=> nil