[SR-12828] Compiler refuses to accept #"""# as an extended string

[swift-ci]

Previous ID	SR-12828
Radar	rdar://problem/63547378
Original Reporter	dhoerl (JIRA User)
Type	Bug

Environment

Xcode 11.4.1

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug
Assignee	None
Priority	Medium

md5: 05da2a5fba37be86129dfb223832781d

Issue Description:

I just read up on "Swift String Extended Delimiters" - I want to use #" and "# to enclose a String constant.

What I need is a single quote, so thought I'd use #"""# - but Xcode complains and says its an unterminated string.

The specification as written should allow my example above (IMHO).

[CodaFi]

@swift-ci create

[CodaFi]

This is an unfortunate oversight in the parser. Your interpretation is correct, and thankfully we can fix this without worrying about a source break because of the hard error.

[swift-ci]

Comment by David Hoerl (JIRA)

@CodaFi Thank you!