ubiquity is a Lisp language inspired by Clojure.
Refer to parser::lexer::Token for the possible syntactic elements. In general, the lexer recognizes a number of delimiters and numeric types; all other input is considered a symbol. Given that the Token::Symbol type wraps a &str from Rust, any valid Rust string (aka UTF-8) is a valid symbol in ubiquity.
refer to parser::ast::Ast for the possible grammatical types.