Read http://olav.it/experiment/rust-slugify/ before using this.

slugify.rs

fn slugify(text: &str) -> String {
	// Create a mutable string to add slug characters to
	let mut slug = String::with_capacity(text.len());

	for c in text.chars() {
		// Check if the current character is a special character, and needs to be replaced
		let replacement = match c {
			' ' => Some("-"),
			// Scandinavian
			'Æ' | 'æ' | 'Ä' | 'ä' => Some("ae"),
			'Ø' | 'ø' | 'Ö' | 'ö' => Some("oe"),
			'Å' | 'å' => Some("aa"),

			// German
			'ẞ' | 'ß' => Some("ss"),
			'Ü' | 'ü' => Some("u"),
			_ => None,
		};

		// Replace if needed. Then check next character.
		if let Some(replacement) = replacement {
			slug.push_str(replacement);
			continue
		}

		// No replacements needed, just lowercase the character and add it.
		match c.to_lowercase().last().unwrap() {
			a @ 'a'...'z' | a @ '0'...'9' => slug.push(a),
			_ => (),
		}
	};
	
	// Shrink in case we didn't fill the allocated string.
	slug.shrink_to_fit();
	slug
}