Waddle_Language/grammar/core/literals.bnf

<literal> ::= <number_literal> 
            | <string_literal> 
            | <boolean_literal>
            | <null_literal>
            | <array_literal>

<number_literal> ::= <integer_literal> | <decimal_literal>

<integer_literal> ::= <digit>+ 
                    | "-" <digit>+

<decimal_literal> ::= <digit>+ "." <digit>+
                    | "-" <digit>+ "." <digit>+

<string_literal> ::= '"' [^\"]* '"'
                   | "'" [^']* "'"

<boolean_literal> ::= "True" | "False"

<null_literal> ::= "Null"

<array_literal> ::= "<" <literal_list>? ">"

<literal_list> ::= <literal> ("," <literal>)*