Description of ExParse :
The presented source package gives the 32 bit Delphi programmers a tool for using run time expression evaluation in their applications. With the use of Exparse, designing a simple calculator is virtually a matter of few minutes. Exparse, however, can be used for many other tasks than implementing calculators. It not only handles numbers, but expressions can contain parameters and have results of any of four basic types (number, date, string, boolean). The set of available functions/operations can be easily changed/extended (even at runtime).