<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></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 Oct 18, 2016, at 11:34 PM, Jacob Bandes-Storch 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=""><span style="color: rgb(51, 51, 51); font-family: -apple-system, blinkmacsystemfont, 'segoe ui', helvetica, arial, sans-serif, 'apple color emoji', 'segoe ui emoji', 'segoe ui symbol'; font-size: 16px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; display: inline !important; float: none;" class="">However, Swift's current identifier and operator character sets do not conform to any Unicode standards, nor have they been rationalized in the language or compiler documentation.</span></div></blockquote></div><br class=""><div class="">This isn't entirely true. Swift's current identifier set derives from the C working group WG14's proposal N1518, "Recommendations for extended identifier characters for C and C++":</div><div class=""><br class=""></div><div class=""><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3146.html" class="">http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3146.html</a></div><div class=""><br class=""></div><div class="">which unfortunately isn't called out anywhere in the compiler docs except this old language reference:</div><div class=""><br class=""></div><div class=""><a href="https://github.com/apple/swift/blob/master/docs/archive/LangRefNew.rst#identifier-tokens" class="">https://github.com/apple/swift/blob/master/docs/archive/LangRefNew.rst#identifier-tokens</a></div><div class=""><br class=""></div><div class="">-Joe</div></body></html>