Add exercise Circular Buffer

[glennj]

I had a thought about how to implement this. It's a library like the list-ops exercise.

I'm curious what you all think.

Because it's a library, the tests don't use the bats run command, so assert_success and assert_failure don't apply. You'll see test assertions look like this

    buffer::write buff 'A'      && result=ok || result=fail
    assert_equal "$result" ok

I didn't write any additional instructions. It's a fairly difficult exercise, so users are on their own.

[kotp]

Get it out there and see what falls from the sky‽

[glennj]

I had a thought just now. What if, instead of

buffer::overwrite bufname value

we had

buffer::write -f bufname value

That would get the student to do option handling inside the function.

That's a more shell-like syntax, but adds complexity.

Worth it?

[kotp]

Is this the exercise we want to introduce additional complexity in? It is already admittedly somewhat difficult.

[IsaacG]

The PR contents look good to me. The idea behind it...

I'm a bit iffy here based on the complexity. Just because you can get bash to do this doesn't mean it's reasonable to do so. I'm leaning more towards passing on exercises that don't fit the language vs jumping through hoops to get things working.

[IsaacG]

Suggested change

	case $opt in
	case "$opt" in

[glennj]

I'm a bit iffy here based on the complexity. Just because you can get bash to do this doesn't mean it's reasonable to do so. I'm leaning more towards passing on exercises that don't fit the language vs jumping through hoops to get things working.

That is completely reasonable. I'm content to close this.

I'll create an issue so we can discuss foregoing exercises.

[glennj]

Although this is do-able in bash, it doesn't mean that it's smart to do it.