The Programming Language DINO: Syntax Next Previous Contents

2. Syntax

An extended Backus-Naur Formalism (EBNF) is used to describe the syntax of Dino. Alternatives are separated by |. Brackets [ and ] denote optionality of the enclosed expression, and braces { and } denote repetition (zero or more times). Parentheses ( and ) are used for grouping a EBNF construction containing alternatives inside it as one construction.

Terminal symbols denoting a class of terminals (e.g. identifier) consist of only upper-case letters (e.g. IDENT). The remaining terminal symbols either start with a lower-case letter (e.g. the keyword else), or are denoted by ASCII character sequences in double quotes (e.g. "=="). Non-terminal symbols start with an upper-case letter and contain at least one lower-case letter (e.g. FormalParameters).

Next Previous Contents