# File lib/sexp_processor.rb, line 139 def rewrite(exp) type = exp.first self.context.unshift type exp.map! { |sub| Array === sub ? rewrite(sub) : sub } self.context.shift begin meth = @rewriters[type] exp = self.send(meth, exp) if meth break unless Sexp === exp old_type, type = type, exp.first end until old_type == type exp end