InfixParser
InfixParser is a Python binding for MathParser (https://github.com/KJ002/MathParser/). This module allows for a simple and quick evaluation of strings. It allows you to evaluate a string with security, you define the external variables!
Examples
Basic Eval
result: float = InfixParser.evaluate("1+1") # returns 2.0Basic Eval (With Evaluator Class)
evaluator = InfixParser.Evaluator()
result: float = evaluator.eval("1+1") # returns 2.0External Variable Eval
evaluator = InfixParser.Evaluator()
x: int = 20
evaluator.append_variable("x", x)
result: float = evaluator.eval("1+x") # returns 21.0Updating External Variable Eval
evaluator = InfixParser.Evaluator()
x: int = 20
evaluator.append_variable("x", x)
result1: float = evaluator.eval("1+x") # returns 21.0
x: int = 10
evaluator.append_variable("x", x)
result2: float = evaluator.eval("1+x") # returns 11.0Functions Eval
"""
It is important to note that function do not have to
have to be called with in an instantiated class
and can just be called with InfixParser.evaluate()
"""
evaluator = InfixParser.Evaluator()
result: float = evaluator.eval("sin(1.5707963267948966)") # returns 1.0
