<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Dec 17, 2015, at 2:35 PM, Radosław Pietruszewski via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Although I would personally never, ever want to do this, I see no reason why this character shouldn’t be allowed for an operator.</div><div class=""><br class=""></div><div class="">The question is: if we are to touch this are and extend the Unicode ranges of characters allowed for operators, what else is missing? A wider proposal to fill in the blanks would probably make sense.</div></div></div></blockquote><div><br class=""></div><div>Right. I also agree that adding this specific character makes sense, and it is trivial to extend the set of characters supported:</div><div><a href="https://github.com/apple/swift/blob/master/include/swift/AST/Identifier.h#L90" class="">https://github.com/apple/swift/blob/master/include/swift/AST/Identifier.h#L90</a></div><div><br class=""></div><div>The question is: what is the right set of characters? It would be great for someone familiar with this space to dive in and try to rationalize it.</div><div><br class=""></div><div>-Chris</div><div><br class=""></div><div><br class=""></div><br class=""><blockquote type="cite" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">
<div class="">— Radek</div>
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<br class=""><div class=""><blockquote type="cite" class=""><div class="">On 17 Dec 2015, at 21:14, Ethan Tira-Thompson via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Hi swift-evolution,</div><div class=""><br class=""></div>I wanted to use ‘·’ as a dot-product operator, but it’s not currently defined as an operator character. (<a href="rdar://problem/23930008" class="">rdar://problem/23930008</a> suggested I come here for comment.)<div class=""><br class=""><div class="">Note that dot operator (⋅, U+22C5) is already available for operators and semantically appropriate, but Mac users can conveniently type option-shift-9 to get the middle dot which is a nice feature and consequently it’s more well-known. FWIW, we have U+00B6 (¶) already defined as an operator, this would extend its range by one.</div></div><div class=""><br class=""></div><div class="">Thoughts?</div><div class=""><br class=""></div><div class="">Thanks,</div><div class=""> -Ethan</div>
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