<code> elements with newlines in the text
      which use CSS to specify white-space:pre will have the newlines
      improperly stripped if the element is not attached to the document at the time
      the stripping is done.  Also, on IE 6, all newlines will be stripped from
      <code> elements because of the way IE6 produces
      innerHTML.  Workaround: use <pre> for code with
      newlines.
    prettyPrintOne was not halting.  This was not
        reachable through the normal entry point.
      is no longer applicable.Caveats: please properly escape less-thans. x<y instead of x<y, and use " instead of " for string delimiters.
lang-<language-file-extension>'''string'''
      / in regex [charsets] should not end regex
    nocode spans to allow embedding of line
      numbers and code annotations which should not be styled or otherwise
      affect the tokenization of prettified code.
      See the issue 22
      testcase.
    <code> blocks with embedded newlines.
      instead of
          so that the output works when embedded in XML.
        Bug
        108.prettyPrintOne injects the HTML
      passed to it into a <pre> element.
      If the HTML comes from a trusted source, this may allow XSS.
      Do not do this.  This should not be a problem for existing apps
      since the standard usage is to rewrite the HTML and then inject
      it, so anyone doing that with untrusted HTML already has an XSS
      vulnerability.  If you sanitize and prettify HTML from an
      untrusted source, sanitize first.