README

EventBusCalculator

Simple Calculator (Delphi, FMX, EventBus, Expression Engine)

Sample Project to demostrate the principles of :-

• EventBus "a publish/subscribe Event Bus framework for the Delphi platform"
• LiveBindings Expression Engine
• uses Regexp to ensure the Expression passed to the Exprssion engine is valid.

UI based on C++ Builder Calculator sample in https://github.com/Embarcadero/Blogs.git

Notes

• Authored in Delphi 10.4 Community edition Download here. (Probably works on previous versions)
• EventBus available from Getit in the Delphi IDE or here.
• Expression engine is part of Delphi's Live bindings.
• Regexp is Part of Delphi.

Please note

Developed as a Win32/64 using FMX. This is a sample project used to showcase without clutter. Main idea is to bring together a number of good technologies. I believe that the simplest and most effective way to do this was by a calculator program. Can be used as a starting point to create a more robust working version.