Macro collapse::collapsed_eq

macro_rules! collapsed_eq {
    ($input:expr, $output:expr) => { ... };
}

Compare two strings, ignoring whitespace

#[macro_use]
use collapse::*;

collapsed_eq!("two  spaces", "two spaces");
collapsed_eq!("new\r\nlines", "new\nlines");
collapsed_eq!(" lead \t tail \r", "lead tail");