<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>It's "mostly the same but lowercased yet with some exceptions", see</div><div><a href="https://github.com/behdad/harfbuzz/blob/master/src/hb-ot-tag.cc">https://github.com/behdad/harfbuzz/blob/master/src/hb-ot-tag.cc</a><br><br>Sent from my mobile phone.</div><div><br>On 07.05.2015, at 00:26, Arthur Reutenauer <<a href="mailto:arthur.reutenauer@normalesup.org">arthur.reutenauer@normalesup.org</a>> wrote:<br><br></div><blockquote type="cite"><div><span> On a related issue, it has always seemed to me that script tags in</span><br><span>OpenType were identical to ISO 15924 - much unlike language tags, that</span><br><span>differ a lot from any part of ISO 639. I'll have a closer look and will</span><br><span>compile a list for anyone who's interested.</span><br><span></span><br><span> Best,</span><br><span></span><br><span> Arthur</span><br></div></blockquote></body></html>