Abstract

methods are indicated by the words Abstract Method . Primitives and macros are indicated by the word Primitive or Macro ; they are not first-class values and cannot be manipulated from within the language. To use a primitive such as eq as a first-class function, declare a new function feq that calls eq on its two arguments. Revised Concurrent Smalltalk Manual 13 3.2. Syntax Tokens A Concurrent Smalltalk token is an arbitrarily long string composed of the characters A-Z, az, 0-9, _, !, ?, %, +, -, *, /, ., <, =, >, &, @, and ^. The characters !, ?, &, and @ may not be used at the beginning of a token, and a token may not be composed entirely of periods (.) or underscores (_). Also, tokens beginning with an underscore (_) or a percent sign (%) are reserved for system purposes and macros and should not be used by user programs. Case is not significant. A token is considered to be a number if it consists entirely of the characters 0-9, _, +, -, /, ., E, or I; it contains at least one ...

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