// pub(crate) const TOKEN_ABBR_DAY: char = 'D';
// pub(crate) const TOKEN_ABBR_HOUR: char = 'H';
// pub(crate) const TOKEN_ABBR_MIN: char = 'M';
// pub(crate) const TOKEN_ABBR_SEC: char = 'S';
pub const TOKEN_ABBR_WEEK: char = 'W';
pub const TOKEN_HYPHEN: char = '-';
pub const TOKEN_COLON: char = ':';
pub const TOKEN_T: char = 'T';
pub const TOKEN_Z: char = 'Z';
pub const TOKEN_PLUS: char = '+';
pub const TOKEN_MINUS: char = '-';
pub const TOKEN_DOT: char = '.';
pub const TOKEN_SPACE: char = ' ';