><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>macros.tex</span><span class='tstring_end'>&#39;</span></span><span class='rparen'>)</span>
  <span class='kw'>if</span> <span class='id identifier rubyid_file_contents'>file_contents</span> <span class='op'>==</span> <span class='kw'>nil</span>
    <span class='id identifier rubyid_file_contents'>file_contents</span> <span class='op'>=</span> <span class='const'>IO</span><span class='period'>.</span><span class='id i