I agree with Adrian that trailing whitespace which is not followed by a backslash should be stripped, because it is not visible otherwise (unlike in a normal string).
-Thorsten > Am 13.04.2017 um 15:32 schrieb Adrian Zubarev via swift-evolution > <swift-evolution@swift.org>: > > Theoretically that would be enough and lightweight solution to that problem, > I could live with that. Optimally stripping them automatically would be > ideal, however I cannot tell how complicated this might be to implement. > > A warning that will popup when you included any trailing spaces in a ‘content > line’ without the explicit backslash could also provide a fix-it to the user > to remove these spaces. However if you can emit that warning and calculate > the spaces to remove, than the compiler should be able to swallow these > characters by default right? > > let s1 = """↵ > ····content·····⇥···⇥··⇥····↵ > ····"""" > > s1 == "content" // => true > The warning itself could bite with Xcode, it depends on who’s faster to > precede that problem. Either Xcode will strip them for you (but designing the > literal we should not rely on that), or the compiler will emit the warning > followed by Xcode which will strip them, which removes the warning. This > would be kind of silly right? > > > > > -- > Adrian Zubarev > Sent with Airmail > > Am 13. April 2017 um 15:10:36, John Holdsworth (m...@johnholdsworth.com > <mailto:m...@johnholdsworth.com>) schrieb: > >> Hi Adrian, >> >> Would you settle for a warning for trailing whitespace in a literal? >> Removing it is a bit fiddly to implement and I’m not sure it’s a feature. >> >> John >> >> >>> On 13 Apr 2017, at 14:05, Adrian Zubarev via swift-evolution >>> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >>> >>> That would be so wrong, because it’s not obvious to anyone how long your >>> string will be. >>> >>> """ >>> foo >>> """ >>> I could tell you, that the string from above could have 10k characters, >>> even if you wouldn’t believe me, as it was proposed (and included in >>> yesterday’s toolchain) my claim can be true. >>> >>> The trailing spaces needs to be stripped by the algorithm unless there is >>> an explicit precision annotation with a backslash! >>> >>> """ >>> foo \ >>> """ >>> That example definitely won’t have 10k characters. >>> >>> >>> >>> >>> -- >>> Adrian Zubarev >>> Sent with Airmail >>> >>> Am 13. April 2017 um 14:35:59, Ricardo Parada (rpar...@mac.com >>> <mailto:rpar...@mac.com>) schrieb: >>> >>>> Trailing whitespace >>>> >>>> You also propose to remove trailing white space in each line unless the >>>> whitespace is followed by a backslash. For example: >>>> let str_2 = """↵ >>>> foo··↵ >>>> """ >>>> The two trailing whitespaces after foo would get removed according to what >>>> you are proposing. I don't like this rule. I think we are better off with >>>> leaving it alone and to the tools as Brent suggested. >>> >>> >>> _______________________________________________ >>> 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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