A way to write ustring literally using a FormattableString

[ebekker]

Wonder if there is any interest in being able to write a literal ustring that may contain embedded non-UTF16 friendly bytes? I was thinking that if you provide a parser for a FormattableString, you can use some Format Item format code to intermix literal character strings with raw bytes.

Something like:

var us = ustring.Make($"Sample {0xff::} Embedded");

This would yield a ustring (us) with the content:

Char	Byte
'S'	83
'a'	97
'm'	109
'p'	112
'l'	108
'e'	101
' '	32
ff	255
' '	32
'E'	69
'm'	109
'b'	98
'e'	101
'd'	100
'd'	100
'e'	101
'd'	100

[ebekker]

Is that what #23 is referring to?

[migueldeicaza]

The compiler already handles unicode characters with \u{...} syntax, the question is whether we need something different than this.

#23 is about creating a ustringBuilder similar to StringBuilder, so you can do:

var a = new ustringBuilder ();
a.Append ("Hello");
a.Append (',');
a.Append (" World");