[swift-evolution] SE-163: String Revision: Collection Conformance, C Interop, Transcoding

Félix Cloutier felixcca at yahoo.ca
Thu Apr 6 00:32:00 CDT 2017

During the proposal phase, we asked how this would handle fixed-length strings with an optional NUL terminator. For instance, in a C `struct Foo { char name[8]; };`, `name` stops at the first \0, or at the eighth byte, whichever comes first. IIRC, Ben said that it would be handled, but I'd like to have it clarified.

Is it correct to assume that a UnicodeEncoding is expected to return UnicodeParseResult.emptyInput when it sees a NUL character (thus stopping before the end of the buffer if necessary)? Is it also correct to assume that if you need this functionality, you'll be looking at code like this?

var result = ""
UnicodeEncoding.parseForward(bufferPointer) { result += $0 }

> Le 5 avr. 2017 à 11:39, John McCall via swift-evolution <swift-evolution at swift.org> a écrit :
> Hello, Swift community!
> The review of "SE-163: String Revision: Collection Conformance, C Interop, Transcoding" begins now and runs through next Tuesday, April 11th. The proposal is available here:
> 	https://github.com/apple/swift-evolution/blob/master/proposals/0163-string-revision-1.md <https://github.com/apple/swift-evolution/blob/master/proposals/0163-string-revision-1.md>
> Reviews are an important part of the Swift evolution process. All reviews should be sent to the swift-evolution mailing list at
> 	https://lists.swift.org/mailman/listinfo/swift-evolution <https://lists.swift.org/mailman/listinfo/swift-evolution>
> or, if you would like to keep your feedback private, directly to the review manager. When replying, please try to keep the proposal link at the top of the message:
> 	Proposal link: https://github.com/apple/swift-evolution/blob/master/proposals/0155-normalize-enum-case-representation.md <https://github.com/apple/swift-evolution/blob/master/proposals/0155-normalize-enum-case-representation.md>
> 	Reply text
> 	Other replies
> What goes into a review?
> The goal of the review process is to improve the proposal under review through constructive criticism and, eventually, determine the direction of Swift. When writing your review, here are some questions you might want to answer in your review:
> 	• What is your evaluation of the proposal?
> 	• Is the problem being addressed significant enough to warrant a change to Swift?
> 	• Does this proposal fit well with the feel and direction of Swift?
> 	• If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?
> 	• How much effort did you put into your review? A glance, a quick reading, or an in-depth study?
> More information about the Swift evolution process is available at https://github.com/apple/swift-evolution/blob/master/process.md <https://github.com/apple/swift-evolution/blob/master/process.md>
> Thank you,
> John McCall
> Review Manager
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