The goal of this program is to serve as a macro generator that can accept macro definitions without any parameters and with possibility of nested macros. The input has to be provided as a single file and all of the macro definitions(nested and not nested) have to be properly closed. The program will firstly add all the macro definitions into the dictionary and only then resolve all the macro calls. This way the macro call can be present before its definition and still be resolved without errors.
To genrate files
$ python tests.py
To test against custom input
$ macro_nested.py sample.txt