[Pitch] Regular Expression Literals

[YOCKOW]

I understand this thread is about literals not about semantics, but I think they would be related to each other.

Let me take my comment in the overview thread:

@YOCKOW

We may have to discuss first whether such feature in Swift should be called Regex or another appropriate name, and whether or not it should have similar appearance with existing regular expressions in other languages.

My thoughts are

• If Swift adopts similar literals with e.g. Perl, semantics should be similar with Perl.
• If Swift adopts different semantics from e.g. Perl, literals should be different from Perl.

That would be called perceived affordance.