Package com.bc.jexp

The main package of the JEXP API.

See: Description

Interface Summary

Interface	Description
EvalEnv	Represents an application dependant evaluation environment.
Function	A representation of a function.
Namespace	Namespaces are used by a Parser in order to resolve to symbol references and function calls.
Parser	Instances of the Parser interface are used to convert a code string representing an arithmetic expression in a tree of terms which can then be executed by using one of the evaluation methods of the Term class.
Symbol	Represents a read-only symbol.
Variable	Represents a variable to which a value can be assigned.
WritableNamespace

Class Summary

Class	Description
Term	The abstract Term class is an in-memory representation of an element within an arbitrary expression tree.
Term.Add	The numerical ADD operation: n-term + n-term
Term.AndB	The logical AND operation: b-term && b-term
Term.AndI	The bitwise AND operation: i-term & i-term
Term.Assign	The assignment operation variable-ref-term = term
Term.Binary
Term.BinaryB	An abstract binary (= 2 operands) operation.
Term.BinaryI	An abstract binary (= 2 operands) operation with a return type of int.
Term.BinaryN	An abstract binary (= 2 operands) operation with a numeric return type.
Term.Call	A call of a (or reference to a) Function.
Term.Cond	The conditional operation b-term ?
Term.ConstB	A boolean constant, e.g.
Term.ConstD	A floating point constant, e.g.
Term.ConstI	An integer constant, e.g.
Term.ConstS
Term.Div	The numerical DIV operation: n-term / n-term
Term.EqB	The boolean EQ operation: b-term == b-term
Term.EqD	The double EQ operation: d-term == d-term
Term.EqI	The integer EQ operation: i-term == i-term
Term.GeD	The double GE operation: d-term >= d-term
Term.GeI	The integer GE operation: i-term >= i-term
Term.GtD	The double GT operation: d-term > d-term
Term.GtI	The integer GT operation: i-term > i-term
Term.LeD	The double LE operation: d-term <= d-term
Term.LeI	The integer LE operation: i-term <= i-term
Term.LtD	The double LT operation: d-term < d-term
Term.LtI	The integer LT operation: i-term < i-term
Term.Mod	The numerical MOD (modulo) operation: n-term % n-term
Term.Mul	The numerical MUL operation: n-term * n-term
Term.Neg	The numerical NEG operation: - d-term
Term.NEqB	The boolean NEQ operation: b-term !
Term.NEqD	The double NEQ operation: d-term !
Term.NEqI	The integer NEQ operation: i-term !
Term.NotB	The logical NOT operation !
Term.NotI	The bitwise NOT operation: ~ i-term
Term.Op	An abstract operation.
Term.OrB	The logical OR operation: b-term || b-term
Term.OrI	The bitwise OR operation: i-term | i-term
Term.Ref	A reference to a Symbol.
Term.Sub	The numerical SUB operation: n-term - n-term
Term.Unary	An abstract unary (= 1 operand) operation.
Term.UnaryB	An abstract unary (= 1 operand) operation with return type of boolean.
Term.UnaryI	An abstract unary (= 1 operand) operation with return type of int.
Term.UnaryN	An abstract unary (= 1 operand) operation with a numeric return type.
Term.XOrI	The bitwise XOR operation: i-term ^ i-term

Exception Summary

Exception	Description
EvalException	An exception that can be thrown during the evaluation of a Term.
ParseException	An exception thrown by a ParserX.parse() call in order to signal a parser error.

Package com.bc.jexp Description

The main package of the JEXP API. It defines the abstract Term class which plays a central role in the API. The other interfaces and classes in this package just support Term. The Term class is used to represent the parsed expressions in memory and also to evaluate them.