std.format with named args

[Imperatorn]

On Tuesday, 17 October 2023 at 06:46:31 UTC, Vitaliy Fadeev wrote:
> Hi all!
> I want readable mixin.
> I want pass variable to string.
> I want string with named args.
> Like this:
>
> ```D
>     enum JMP_ADDR_R = "RAX";
>
>     mixin( format!"asm {
>         jmp [JMP_ADDR_R];
>    }"( JMP_ADDR_R ));    // IT NOT WORK
> ```
>
> Not this:
>
> ```D
>     enum JMP_ADDR_R = "RAX";
>
>     mixin( format!"asm {
>         jmp [%s];
>    }"( JMP_ADDR_R ));    // WORK, BUT NOT-READABLE
> ```
>
> In large code named identifiers more readable.
>
> In future it will used in jump table, like this:
>
> ```D
>     mixin( format!"asm {
>         lea JMP_ADDR_R, qword ptr [ JMP_I_R * PTR_SIZE + 
> TBL_ADDR ];
>         jmp [JMP_ADDR_R];
>     }"( JMP_I_R, PTR_SIZE, TBL_ADDR, JMP_ADDR_R ));
> ```
>
> Please, help me find a solution...
> or exists std.format with named args ?
> or another solution with named args ?

Without string interpolation the best you can do is 
https://dlang.org/library/std/conv/text.html

Or write some code yourself, unfortunately