CGOL (pronounced "see goll") is an alternative syntax for the MACLISP programming language, featuring an extensible algebraic notation. It was created by Vaughan Pratt.
The notation of CGOL is a traditional algebraic notation (sometimes called "infix syntax"), in the style of ALGOL, rather than Lisp's traditional, uniformly-parenthesized syntax. The CGOL parser is based on Pratt's design for top-down operator precedence parsing, sometimes informa...
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CGOL (pronounced "see goll") is an alternative syntax for the MACLISP programming language, featuring an extensible algebraic notation. It was created by Vaughan Pratt.
The notation of CGOL is a traditional algebraic notation (sometimes called "infix syntax"), in the style of ALGOL, rather than Lisp's traditional, uniformly-parenthesized syntax. The CGOL parser is based on Pratt's design for top-down operator precedence parsing, sometimes informally referred to as a "Pratt parser".
Semantically, CGOL is essentially just MACLISP, with some additional reader and printer support.
Special notations are available for many commonly used MACLISP operations. For example, one can write a matrix multiply routine as:
CGOL has an infix . operation (referring to MACLISP's cons function) and the infix @ operation (referring to MACLISP's append function):
The preceding example corresponds to this text in native MACLISP:
CGOL uses of to read and set properties:
The preceding example corresponds to...
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