liberty-db 0.4.2

`liberty` data structre
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pub(crate) mod format {
  use prettytable::format::{FormatBuilder, LinePosition, LineSeparator, TableFormat};

  lazy_static::lazy_static! {
  /// A table with delimiters made with box characters
  ///
  /// Reference: [FORMAT_BOX_CHARS](prettytable::format::consts::FORMAT_BOX_CHARS)
  ///
  /// # Example
  /// ```text
  ///  A │ B │ !(A&B)
  /// ───┼───┼───────
  ///  1 │ Z │ X
  ///  1 │ X │ X
  ///  1 │ R │ F
  ///  1 │ 1 │ 0
  ///  1 │ 0 │ 1
  ///  1 │ F │ R
  /// ```
  pub static ref FORMAT_NO_BORDER_BOX_CHARS: TableFormat = FormatBuilder::new()
      .column_separator('│')
      .separators(&[LinePosition::Title],
      LineSeparator::new('─','┼','┼','┼'))
      .padding(1, 1)
      .build();
  }
}

pub(crate) mod misc {
  pub(crate) fn argsort<T: Ord>(data: &[T]) -> Vec<usize> {
    let mut indices = (0..data.len()).collect::<Vec<_>>();
    indices.sort_by_key(|&i| &data[i]);
    indices
  }
}