static S sourceCodeToHTML(S src) {
  ret [[<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">]] + htmlencode2(src) + "</pre>";
}

// works for String, StringBuffer, StringBuilder
static S sourceCodeToHTML(O o) {
  ret sourceCodeToHTML(str(o));
}