cssparser::match_ignore_ascii_case!

macro_rules! match_ignore_ascii_case {
    (@inner $value:expr, ($string:expr => $result:expr, _ => $fallback:expr) -> ($($parsed:tt)*) ) => { ... };
    (@inner $value:expr, ($string:expr => $result:expr, $($rest:tt)*) -> ($($parsed:tt)*) ) => { ... };
    (@inner $value:expr, () -> ($(($string:expr => $result:expr))*) $fallback:expr ) => { ... };
    ( $value:expr, $($rest:tt)* ) => { ... };
}

This macro is equivalent to a match expression on an &str value, but matching is case-insensitive in the ASCII range.

Usage example:

match_ignore_ascii_case! { string,
    "foo" => Some(Foo),
    "bar" => Some(Bar),
    "baz" => Some(Baz),
    _ => None
}

The macro also takes a slice of the value, so that a String or CowString could be passed directly instead of a &str.