How to translate a string into a formula in Java?

Question

Java

Hello, I want to make a program that reads a line (formula), what needs to be done to translate this line into "computer language"?))
For example, there is such a line: "y=ln(x)+2.5*7^x" it is necessary to these actions were performed in the program. I read that this can be done using regular expressions, but did not understand how.

Answer 1

Ну Вы конечно насоветовали человеку ...
Если нужно запилить парсер нет ничего лучше, чем ANTLR
сами описываете грамматику, он Вам генерит код, который эту грамматику понимает. Примеров грамматик для математики вагон и маленькая тележка.

Answer 2

If you want to fully understand the issue - see the theory of compilers, for example, the book of the red dragon .

Answer 3

ScriptEngine + eval