Category : Pascal Source Code
Archive   : EVALTP5.ZIP
Filename : EVALUATE.DOC

 
Output of file : EVALUATE.DOC contained in archive : EVALTP5.ZIP

Evaluate TPU for Turbo Pascal 5.5
10/11/89
Unit from Don McIver
SCB CheckBook Program

The Unit EvalValue is a recurrsive Function that will take a string[255]
and return the arithmatic answwer to the string. To see what functions
are supported look at the Eval.Pas file for Token listings.

The Function EvalValue is used in a Command Line Argument to demo its
capacity. I've asked Don to develop a more comprehensive usage of his
Eval Function which will include Memory Variables etc. He'll eventually
get this out. Until then I thought I would offer his basic unit from his
SCB Source Files.

The use of recursion makes this a fast and compact method of dealing with
arithmatic operations in programs.

Hope you enjoy.
Pat Dant
10/10/1989