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Roman Numbers Equation Solver

From time to time its a good idea to work on a project implementing every functionality from scratch. For example, 4 years ago I did it in PHP, I called it FFS - which stands for Framework from scrach. You may find it here.

In this repo instead, you'll something like this in Java, a project I worked in 2015. The use case is a Roman Numbers First Degree Equation Solver, where you can code the value of symbols and solve equations. I also wanted to test some technics of batch processing to validate some personal convinctions. The software will process a set of definitions and equations and provide a result for the equations.

To notice that I splitted it somehow into commands and queries. Definitions are commands that don't return anything, queries, are equations that return a value.

A sample of a file that you may pass from the command line is:

SampleSymbol is V
Ten is X
Fifty is L
SampleSymbol SampleSymbol Silver is 34 Credits
SampleSymbol SampleSymbol kiwi is 57800 Credits
ThirdSymbol ThirdSymbol Chair is 3910 Credits
how much is Ten Fifty SampleSymbol SampleSymbol ?
how many Credits is SampleSymbol AnotherSymbol Silver ?
how many Credits is SampleSymbol AnotherSymbol Kiwi ?
how many Credits is SampleSymbol AnotherSymbol Chair ?

Enjoy, Virgilio