Code quality and other notes

[Pa3u3u]

These are just general observations I made when reading your code. You are not required to fix any of these but may give you some suggestions on what to improve.

• The argument parsing could be more generic; for example, you could have tried to imitate Getopt's functionality by providing a description of the options in a declarative way. Currently, option parsing has hard-wired code paths that split over = manually, leading to slight code duplication.

• Format options could be handled more generically as well. Currently, to add a new format, one must implement the classes, but also change the argument parser. Perhaps the format could be implemented as a stand-alone module (with an interface) that could tell the parser what it wants.

• Good job with setting up tests to unify Unit tests and Integration tests without using Python, Shell or other scripting languages.

[vboucek]

• I have added a generic args parser, which can be used similarly to getopts.

• I also changed the formats, each format now parses its options itself. New format can now be added via a generic module, which associates a format class with a format name and instantiates new format instances.