[swift-evolution] [Accepted] SE-0168: Multi-Line String Literals

[Xiaodi Wu]

Hmm, I don't know that I agree. What's the harm of trailing spaces, and if
a warning, how would I silence it given that \ is rejected as a way to
suppress a literal newline?


On Wed, Apr 19, 2017 at 17:02 Joe Groff via swift-evolution <
swift-evolution at swift.org> wrote:

> On Apr 19, 2017, at 2:43 PM, Adrian Zubarev <
> adrian.zubarev at devandartist.com> wrote:
>
> First of all, thank you for accepting the proposal. However I still have
> one single concern left about the trailing whitespaces. Will the final
> implemented version raise a warning or produce an error when there are
> trailing whitespaces?
>
> The whole idea of a trailing \ was in first place to prevent new line
> injection but also for trailing whitespace character precision.
>
> The following example could have 1000 characters, but a different
> developer who reads the code wouldn’t even notice.
>
> """
> Foo<space><space>…<space>
> Bar
> """
>
> That’s what the trailing backslash was meant for. To prevent unwanted
> whitespaces, or if you really need them, to force you to be precise about
> them.
>
> """
> Foo<space><space><space>\n\
> Bar
> """
>
> That seems like a reasonable thing to warn about. That also reminds me,
> blank lines should be accepted within a literal even if they aren't
> "indented" with invisible whitespace.
>
> -Joe
>
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