Thoughts
Thinking about it, it seems like SMASH should resemble a POSIX compliant shell more than I originally intended. I originally intended to
only support the most basic of commands, and take it as an opportunity to simplify and iron-out the shell interface. And I'll still do that in some ways. But generally, people know how to use POSIX shells, and solutions provided by POSIX are not bad. The question I'm asking myself is not "could it be better," because it can, but "is it possible to deliver the clean and easy to use terminal experience that I want SMASH to deliver, while still supporting these POSIXs features." And I think the answer is yes for a lot of things, like pipes (which I originally didn't intend on supporting). I think there are other places like some of the quoting rules which may get in the way of delivering an intuitive terminal experience, and so I may need to break compatibility in those areas.
Bash is a shell scripting language. It's a whole scripting language. And I don't want the SMASH shell to ever support conditionals or turning complete logic or functions, because it detracts from the status quo of the terminal as a command-entry-screen.