Declarative Objectivity (DO) Language : Tokens
Tokens
Tokens are the most fundamental building blocks of DO statements.
As submitted, a DO statement consists of a sequence of characters, and so DO’s first job is to convert those characters into a series of meaningful internal representations, or tokens. The topics below describe the rules for forming valid character sequences that can be converted into the various kinds of tokens.
 
Token
Description
Names, including Class Names
Identifiers that refer to attributes, classes, namespaces, operators, aliases, or variables.
Sequences of characters that can be stored as data.
Representations of calendar and clock components.