code: function line (line, left, right, intersection){
      var width = 0
        , line =
            left
          + repeat(line, totalWidth - 2)
          + right;
  
      colWidths.forEach(function (w, i){
        if (i == colWidths.length - 1) return;
        width += w + 1;
        line = line.substr(0, width) + intersection + line.substr(width + 1);
      });
  
      return applyStyles(options.style.border, line);
    }
docs: draws a line