Scalable circles kata

Kata:

Print out a scalable circle on the command line.

program takes a diameter as an input

input 1: output: o

input 2: output: ()

                   _
                  / \
input 5: output: |   |
                  \_/

                   ___
                  /   \
input 7: output: |     |
                  \___/

It's open to interpretation so long as it looks vaguely circley


Stretch goal:

Print out a scalable smiley face (only going to affect larger images)
                     ____
                   /      \
                  /  o  o  \
input 10: output: | .    . |
                  \ '....' /
                   \______/

Again, so long as it looks vaguely smiley then that's fine.