Macro wagon_parser::any_token

macro_rules! any_token {
    ($variant:ident($($arg:tt)*)) => { ... };
    ($variant:ident) => { ... };
}

A macro that automatically expands to allow either a wagon_lexer::Tokens::ProductionToken, a wagon_lexer::Tokens::MathToken or a wagon_lexer::Tokens::MetadataToken.