Grammar doesn't include labelled string interpolation

[woolsweater]

Previous ID	SR-14030
Radar	rdar://problem/73014172
Original Reporter	@woolsweater
Type	Bug

Environment

Swift Book v5.3 on swift.org

Additional Detail from JIRA

Votes	0
Component/s
Labels	Bug, Documentation
Assignee	None
Priority	Medium

md5: f52f6b8e5201224bbb536e153db0c38b

Issue Description:

The grammar rule for "interpolated-text-item" specifies a single expression inside parentheses:

interpolated-text-item → \ ( expression ) | quoted-text-item

but Swift actually accepts the equivalent of a tuple expression after the backslash, something like:

interpolated-text-item → \ ( interpolated-text-list ) | quoted-text-item
interpolated-text-list → interpolated-text-element | interpolated-text-element , interpolated-text-list
interpolated-text-element → expression | identifier : expression

[typesanitizer]

@swift-ci create

[AbhishekSharma55]

Hi there,

I want to contribute to this project and take on this issue as my first task. Could you please assign it to me? I am excited to work towards resolving it and will keep the team updated on my progress.

Thanks

[AnthonyLatsis]

Hello, @AbhishekSharma55,

Please feel free to work on this, but note that the language reference where this issue is seen lives in a different repository, https://github.com/apple/swift-book.

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@xedin Please transfer this.

[AbhishekSharma55]

Thank you for pointing out the location of the language reference repository. I appreciate the clarification. I'll make sure to focus on this issue in the appropriate repository moving forward.