While working on html code I realized (for the n-th time) that having just verbatim and non-verbatim strings is way too little. Ruby did it right, so I simply copied proven solution:
let s = %s<<p>quotation counts "parentheses"</p>>;
In the process I reverted the syntax for characters literals back to C#:
let c = 'b';
at the expense of adding backtick as meta switch. In Ada apostrophe serves dual role but I don’t see how to make it in Skila grammar:
••• > ' •••
would be ambiguous (accessing meta information about generic type or comparing characters).