TextBasedCalcApp

Welcome to the Text based calculator.

Evaluation steps

1. First, we look to replace assignment shortcuts in the string such as +=, -=, *=, /=
2. Second, we look for brackets and try and solve them using recursion
3. Third, we interpret and replace the value of unary operations such as ++ and --
4. Fourth, we resolve concatenated signs such as 5---4 which is similar to 5-4
5. Fifth and last, we compute the expression based on basic arithmetic computation +-/*

Test execution

$ python Tests.py

Valid expressions for example:

1. a=5+5+5*2/10-3
2. a=1
3. b=++a
4. c=a++
5. d=b+++1
6. e=++d+1

Complex problems:

Multiple signs:

1. a=-3+-+-+-2
2. b=10----9

Multipliction of negativs

3. c=-4-6*-6*-4-2