This module is used to calculate the number comment line and its percentage in a project.
calculator -dir=<dir>
# dir need to be full pathWARNING: Since this project hasn't using parser, so you need to make sure the format of comments in your code is correct. You also need to check out there is not comment string in the string literal. For Python, currently we cannot deal with inline doc string (e.g., '''hello'')