Harbour (programming language): Difference between revisions

Revision as of 09:59, 28 August 2023

Revision as of 21:20, 18 November 2023

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Any [[xBase]] language provides a very productive way to build business and data intensive applications. Harbour is not an exception.

===Macro Operatoroperator (runtime compiler)===

One of the most powerful features of xBase languages is the [[Macro (computer science)|Macro]] Operator '&'. Harbour's implementation of the Macro Operator allows for runtime compilation of any valid Harbour expression. Such a compiled expression may be used as a VALUE, i.e. the right side of an assignment (rvalue), but such a compiled expression may be used to resolve the left side (lvalue) of an assignment, i.e. private, or public variables, or a database field.

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is the short form of &( SomeId + "postfix" ).

===Object-oriented Oriented Programmingprogramming===

Programming in an OOP style is a broader issue than a specific library or a specific interface, but OOP programming is something many Clipper programmers have come to expect. CA-Clipper 5.2 and especially 5.3 added a number of base classes, and a matching OOP syntax. Libraries such as [https://web.archive.org/web/20010501165630/http://appsolutions.com/Classy/ Class(y)], FieWin, Clip4Win, and Top Class provide additional OOP functionality.