HalExpression FULL Version

Version: 2.0.0   (version history)
Size: 0
Date: January 26, 2002
License: Free To Try E45
OS: Win 95/NT/2000/98/ME
Author: Gavidia.org

Publisher's Description

THalExpression is a set of VCL Components for Delphi designed as a formula evaluator. It supports expressions defined under xBase, Pascal, Basic or Java syntax. This package gives you the opportunity to create software completely configurable in details like filters (remember xbase's macros) or searches.

THalExpression is based on ¿variant¿ type, for this reason it accepts strings, integers, floats, booleans and dates. It can operate using ¿user defined functions¿ and/or variables. It supports datasets, aliases and field references. More than 75 functions are predefined.

It¿s possible to define additional functions (UDF). For this reason THalMacroExpression can to use simple hashing-list or events than request identifiers. This has great potentials.

It also counts with multidimensional arrays.

Documentation available in English and Spanish. Hal

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