<html><body><div><br></div><div><br>On Jun 27, 2013, at 08:53 AM, Peter Dyballa <Peter_Dyballa@Web.DE> wrote:<br><br><div><blockquote type="cite"><div class="msg-quote"><div class="_stretch"><br> Am 27.06.2013 um 16:49 schrieb George Gratzer:<br> <br> > Invalid Regular Expression<br> > Invalid backref number/name<br> <br> Now, this is interesting: there are tools in Mac OS X that understand regular expressions and back-references! (Besides AlphaX and awk, ed/sed or vim.)</div></div></blockquote><span> </span><br>news from 10 years ago...when I was using back references in iTeXMac, BibDesk and (I think) TextWrangler.<br><br><br></div></div></body></html>