/// returns a horizontal rule of the box of the specified length
returns a horizontal rule of the box of the specified length
returns a horizontal rule of the box of the specified length
fn box_separator(length: usize) -> String {
    if length < 2 {
        return format!("");
    }
    format!("{}{}{}", "├", "─".repeat(length - 2), "┤")
}
fn box_separator ( length : usize ) -> String { if length < 2 { return format ! ( " " ) ; } format ! ( " " " " p at(len g th - 2 " ┤ }
returns a horizontal rule of the box of the specified length
returns a horizontal rule of the box of the specified length
length
usize