Macro lit_mod::replace

replace!() { /* proc-macro */ }

Replaces all matches of a pattern with another string in a string literal.

Alternatively the third argument can be ignored and the macro will remove all matches of the pattern instead.

Examples

Basic usage:

use lit_mod::replace;

assert_eq!("this is new", replace!("this is old", "old", "new"));
assert_eq!("than an old", replace!("this is old", "is", "an"));
assert_eq!("this is", replace!("this is old", " old"));

When the pattern doesn’t match:

use lit_mod::replace;

assert_eq!(
    "this is old",
    replace!("this is old", "cookie monster", "little lamb")
);