string to character code hex string

[Moritz Maxeiner via Digitalmars-d-learn]

On Saturday, 2 September 2017 at 20:02:37 UTC, bitwise wrote:
> On Saturday, 2 September 2017 at 18:28:02 UTC, Moritz Maxeiner 
> wrote:
>> 
>> In UTF8:
>>
>> --- utfmangle.d ---
>> void fun_ༀ() {}
>> pragma(msg, fun_ༀ.mangleof);
>> -------------------
>>
>> ---
>> $ dmd -c utfmangle.d
>> _D6mangle7fun_ༀFZv
>> ---
>>
>> Only universal character names for identifiers are allowed, 
>> though, as per [1]
>>
>> [1] https://dlang.org/spec/lex.html#identifiers
>
> What I intend to do is this though:
>
> void fun(string s)() {}
> pragma(msg, fun!"ༀ".mangleof);
>
> which gives:
> _D7mainMod21__T3funVAyaa3_e0bc80Z3funFNaNbNiNfZv
>
> where "e0bc80" is the 3 bytes of "ༀ".

Interesting, I wasn't aware of that (though after thinking about 
it, it does make sense, as identifiers can only have visible 
characters in them, while a string could have things such as 
control characters inside), thanks! That behaviour is defined 
here [1], btw (the line `CharWidth Number _ HexDigits`).

[1] https://dlang.org/spec/abi.html#Value