Raw string literals and Unicode escapes

[John Rose]

On Feb 14, 2018, at 12:24 PM, Alex Buckley <alex.buckley at oracle.com> wrote:
> 
> There is plenty of precedent for semantic rules

In my draft version this is done with "where" clauses on the
grammar rules:

>  
> RawStringLiteral:
> 
>   RawQuote RawStringBody RawQuote
>   where the two raw-quotes are constrained to be identical
> 
> RawQuote:
>   ` {`}
>   where the preimage is constrained to be unescaped


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