Macro concat_with::concat_impl

macro_rules! concat_impl {
    (@inner $(#[$attr:meta])* $name:ident, $w: expr, $dollar:tt) => { ... };
    ($($(#[$attr:meta])* $name:ident => $w:expr),* $(,) *) => { ... };
}

Create macros used for concatenating literals separated by a specific literal.

concat_with::concat_impl! {
    #[macro_export]
    /// Concatenates literals into a static string slice separated by a comma and a whitespace, `, `. Prefixes and suffixes can also be added.
    concat_with_comma => ", ",
    #[macro_export]
    /// Concatenates literals into a static string slice separated by a colon, `:`. Prefixes and suffixes can also be added.
    concat_with_colon => ':',
}

assert_eq!("test, 10, b, true", concat_with_comma!("test", 10, 'b', true));
assert_eq!("test:10:b:true", concat_with_colon!("test", 10, 'b', true));