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Unary Operators

Glish provides three basic unary operators: +, -, and !. The first simply yields the value of its operand; the second, its arithmetic negation; and the third, its logical negation. All require numeric operands and yield a numeric or boolean (for ``!") result, and all work on vectors as well as scalars.

In addition to these basic operators, all of the regular expression operators are also available: ~, =~, !~. These operators are used to apply regular expressions to strings, and they can be used as either binary or unary operators.

(See § 3.2.3, page for a description of + and -, § 3.2.4, page for a description of !, and § 4.9, page for a description of the regular expression operators.)

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