Operators

There are three kinds of operators:

  • Combination operators, used to combine conditions 
  • Condition operators, used to specify a condition for expressions 
  • Expression operators, used in expressions

The description of each operator includes the allowed types of each argument. The argument type is the expected type of the result of evaluating the actual expression passed as argument. The following argument types are used:

STRING

An expression evaluating to a value of type STRING

INTEGER

An expression evaluating to a value of type INTEGER

REAL

An expression evaluating to a value of type REAL

ENUM

An expression evaluating to a value of an enumeration type

ANY

Any simple (nonlist) value

LIST_OF T

A list of elements of type T

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