how-to-match-whitespace-with-a-regex-in-rust.md

How to match whitespace with a regex in Rust?

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Matching whitespace with a regex in Rust is done using the \s character class. This character class matches any whitespace character, including spaces, tabs, and newlines.

let whitespace_regex = Regex::new(r"\s").unwrap();
let whitespace_string = "This string has whitespace!";

assert!(whitespace_regex.is_match(whitespace_string));

The code above will assert that the whitespace_regex matches the whitespace_string.

Code explanation

• let whitespace_regex = Regex::new(r"\s").unwrap();: This line creates a new regex object using the \s character class.
• let whitespace_string = "This string has whitespace!";: This line creates a string that contains whitespace.
• assert!(whitespace_regex.is_match(whitespace_string));: This line asserts that the whitespace_regex matches the whitespace_string.

Helpful links

• Rust Regex Documentation
• Rust Regex Character Classes

group: rust-regex

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