Is there any way to pre-process a string at compile time?

1

Is there anyway to pre-process a string compile time. For example, It would be really useful to replace a certain character compile time.

// this
println!("Some test string".replace(' ', '-'));

//would compile as this
println!("Some-test-string");

// giving this 
// output
//
// Some-test-string
//

Is this possible in any way?

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The println! macro requires a string literal (not even a const will work), so the replacement would need to be done by another macro.

The standard library doesn’t have a macro for replacing characters in string literals, and I haven’t found any external libraries that do it either, but you could write your own procedural macro.

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