Target Practice

The Trade Federation is too cheap to buy practice targets for testing the battle droid weapon system. Your job is to write a program that reads an integer specifying the size of a target and prints a target of that size.

A target is a square whose side length is $n$, with an X drawn across the middle. Its characters are as follows.

• The first and last rows are a border: one |, then $n-2$ dash (minus sign) - characters, then one |.
• Each of the middle $n-2$ rows is one |, then $n-2$ inner characters, then one |.
• In the inner $(n-2)\times(n-2)$ grid, index the rows and columns from $0$. A cell holds * if it lies on either diagonal (row == col, or row + col == $n-3$), and a space otherwise. This forms the X.

The following is a target of size $7$.

|-----|
|*   *|
| * * |
|  *  |
| * * |
|*   *|
|-----|

A single odd integer greater than $1$.

The target of the appropriate size.