That’s open for debate in the strawman. The parenthesis are performing two tasks: delimiting a capture and grouping. If we can split these two concepts, e.g. if we have non-capturing grouping, we could require that quantifiers on a capture be “sunk” into the subpattern. This would eliminate the issue.
> On Jan 17, 2018, at 2:08 PM, David Hart <da...@hartbit.com> wrote: > > While we’re on the topic of regular expressions, can someone confirm if the > direction that the document is taking supports naming capture groups inside > repeating patterns and automatically typing them to arrays? > > let name = / > (let firstName: String <- \w+) \s > (let initials: [String] <- \w)* \s > (let lastName: String <- \w+) > / > print(type(of: name)) // => Regex<(firstName: String, initials: [Character], > lastName: String)> > > On 16 Jan 2018, at 23:20, Michael Ilseman via swift-evolution > <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: > >> Significant leading zeros is a good point. Another would be >> non-default-radix. >> >>> On Jan 16, 2018, at 12:22 PM, C. Keith Ray via swift-evolution >>> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >>> >>> people may want digits as characters in order to see zeros. parsing phone >>> numbers and social security numbers need zeros. >>> >>> C. Keith Ray >>> https://leanpub.com/wepntk <https://leanpub.com/wepntk> <- buy my book? >>> http://agilesolutionspace.blogspot.com/ >>> <http://agilesolutionspace.blogspot.com/> >>> twitter: @ckeithray >>> http://www.thirdfoundationsw.com/keith_ray_resume_2014_long.pdf >>> <http://www.thirdfoundationsw.com/keith_ray_resume_2014_long.pdf> >>> >>> On Jan 16, 2018, at 11:24 AM, Eneko Alonso via swift-evolution >>> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >>> >>>> Digits could always be inferred to be numeric (Int) and they should always >>>> be “exact” (to match "\d"): >>> _______________________________________________ >>> swift-evolution mailing list >>> swift-evolution@swift.org <mailto:swift-evolution@swift.org> >>> https://lists.swift.org/mailman/listinfo/swift-evolution >>> <https://lists.swift.org/mailman/listinfo/swift-evolution> >> >> _______________________________________________ >> swift-evolution mailing list >> swift-evolution@swift.org <mailto:swift-evolution@swift.org> >> https://lists.swift.org/mailman/listinfo/swift-evolution >> <https://lists.swift.org/mailman/listinfo/swift-evolution>
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