DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

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<!DOCTYPE html>
<html>
<body onload="document.documentElement.offsetHeight; document.getElementById('s').style.textTransform='uppercase'; document.documentElement.offsetHeight; ">

<div style="white-space: pre-wrap; -moz-column-count: 2;"><span id="s" style="unicode-bidi: -moz-isolate;">
 <div style="direction: rtl;"></div></span></div>

</body>
</html>