Macro slash_formatter::concat_with_backslash_mut

macro_rules! concat_with_backslash_mut {
    ($s:expr, $($sc:expr), *) => { ... };
}

Concatenate multiple strings with backslashes.

#[macro_use] extern crate slash_formatter;

let mut s = String::from("path");

concat_with_backslash_mut!(&mut s, r"to\", r"\file\");

assert_eq!(r"path\to\file", s);