TODO.md

TODO

1. Improve and expand tests.
   • Use example tests or cmp to test usage output.
   • Add tests for defaults and isZero check.
   • Check coverage?
2. Change usage display to suit my preferences. Do not special case short boolean flags; put usage on the same line as the flag. Use a tabwriter and wrap text to some good default for terminals?
3. Use a generic isZero check rather than reflect?
4. Add Subcommand and Subcommands (similar to Alias and Aliases). These would support display of subcommands in usage, but I do not want to handle the overall parsing or running of subcommands (for now?). Users will manually parse and run their subcommands.
5. Read both flag and ff. Decide how I want to implement both long and short. Do I want to use something like Alias and the stdlib, or should I do it from scratch. Also, think about how I want to implement help displays and how much of the stdlib is worth carrying over. E.g., Visit and VisitAll.
6. Demand that all flags implement an interface with two methods: IsZero and Default? (Maybe call this a Defaulter interface?) This could get rid of brittle, incomplete, panic-inducing, or reflect-requiring tests for whether something is a zero value.