Indeed. It's noted under "design concerns" and, IMO, raises the bar for their addition.<br><br><div class="gmail_quote"><div dir="ltr">On Sat, Apr 9, 2016 at 12:05 PM Ben Rimmington via swift-evolution <<a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Re: "Completing the Swift 3 range operator suite"<br>
<<a href="https://gist.github.com/erica/af92c541a0fb69fce1b7aaf8374a5aa9" rel="noreferrer" target="_blank">https://gist.github.com/erica/af92c541a0fb69fce1b7aaf8374a5aa9</a>><br>
<br>
The proposed operators (<.. and <.<) are not allowed by Swift 2.2 lexer grammar:<br>
<br>
<<a href="https://github.com/apple/swift/commit/0bfacde2420937bfb6e0e1be6567b0e90ee2fb67" rel="noreferrer" target="_blank">https://github.com/apple/swift/commit/0bfacde2420937bfb6e0e1be6567b0e90ee2fb67</a>><br>
<<a href="https://github.com/apple/swift/commit/d0256a50d0346f7d4b4c0054dddd0734febc6bb1" rel="noreferrer" target="_blank">https://github.com/apple/swift/commit/d0256a50d0346f7d4b4c0054dddd0734febc6bb1</a>><br>
<br>
-- Ben<br>
<br>
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</blockquote></div>