How to escape parentheses in a Rust regex?

// plain

To escape parentheses in a Rust regex, you can use a backslash (\) before the parentheses. For example:

let re = Regex::new(r"\(test\)").unwrap();

This will create a regex that matches the literal string (test).

Code explanation

let re =: This declares a variable re of type Regex.
Regex::new: This is a static method of the Regex type that creates a new Regex from a string.
r"\(test\)": This is the string passed to Regex::new. The r indicates that it is a raw string, which means that backslashes are not treated as escape characters. The backslash before the parentheses escapes them, so that the regex matches the literal string (test).

group: rust-regex