Template:Killbrackets
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The purpose of this template is to return nothing (or second parameter if it exists) if first parameter is "[ ]". If the first parameter is not [ ] then it will return the first argument. You may want to make that the end of the template is not touching whitespace or at the very least is touching an &32; to prevent a newline.
For {{Killbrackets|[ ]|<nothing>}} {{Killbrackets|[ ]}} {{Killbrackets|foo|bar}} {{Killbrackets|baz}}
<nothing>
foo
baz