/// <summary>
/// Gets the boundary production function as determined by a style
/// </summary>
/// <param name="style">The tuple representation style</param>
/// <returns></returns>
internal static Func<string, string> boundaryFn(TupleFormatStyle style)
=> style == TupleFormatStyle.List ? new Func<string, string>(bracket)
: style == TupleFormatStyle.Record ? new Func<string, string>(embrace)
: new Func<string, string>(paren);
static char rightBoundary(TupleFormatStyle style)
=> (style == TupleFormatStyle.Coordinate ? rparen()
: style == TupleFormatStyle.List ? rbracket()
: style == TupleFormatStyle.Record ? rbrace()
: rparen())[0];
static char[] bounds(TupleFormatStyle style)
=> array(leftBoundary(style), rightBoundary(style));
static char leftBoundary(TupleFormatStyle style)
=> (style == TupleFormatStyle.Coordinate ? lparen()
: style == TupleFormatStyle.List ? lbracket()
: style == TupleFormatStyle.Record ? lbrace()
: lparen())[0];
