module Padrino::Erubis::SafeBufferEnhancer

def add_expr_escaped(src, code)          
  src << " #{@bufvar}.safe_concat " << code << ';'
end

def add_expr_literal(src, code)
  src << " #{@bufvar}.concat((" << code << ').to_s);'
end

def add_text(src, text)
  src << " #{@bufvar}.safe_concat '" << escape_text(text) << "';" unless text.empty?
end