Package com.trassare.calculator.engine

This package contains an evaluation engine for infix expressions.

See:
Description

Class Summary

ExpressionScanner	A scanner class used for arithmetic expressions. CS 152, Fall, 2005 Programming Assignment #1
InfixCalculator	InfixCalculator parses, calculates, and prints the results of a series of floating-point arithmetic expressions, one to a line, as given by the following grammar:
Operation	This class contains the mathematical operations that are not native to the BigDecimal class.
PushbackReaderFactory	Used to swap out the PushbackReader in the ExpressionScanner.
Token	A Token class for use in a scanner for simple arithmetic expressions. CS 152, Fall, 2005 Programming Assignment #1
Token.ERROR	Token matching an erroneous character in input. CS 152, Fall, 2005 Programming Assignment #1
Token.IDENTIFIER	Token matching regular expression [A-Z]+ in input. This token is used for variable names in the input expression.
Token.NUMBER	Token matching regular expression [0-9]+(\.[0-9]*)? in input. CS 152, Fall, 2005 Programming Assignment #1

Exception Summary

ExpressionScanner.ScanException	An exception to indicate an IO error in the scanner. Useful to avoid the checked exception IOException. CS 152, Fall, 2005 Programming Assignment #1
Operation.OperationException	An exception to indicate an invalid number in an operation.
ParseException	A custom exception class for the calculator.

Package com.trassare.calculator.engine Description

This package contains an evaluation engine for infix expressions. Originally based on a series of assignments given by Dr. Kenneth Louden at San Jose State University, it has been expanded throughout to provide a rich set of calculator features.