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    If no option value is supplied or if it is invalid, then a default will
    be silently assumed (omitting all options will return a rhombus of 25
    lines).

    Given that the specified number of lines is even, it will be incremented
    to satisfy the requirement of being an odd number.

    Options:

    *   "lines"

        Number of lines to be printed. Defaults to 25.

    *   "digit"

        Digit to start with. Defaults to 0.

    *   "fillup"

        The fillup character. Defaults to '.'.

    *   "forward"

        Forward digit enumeration. Defaults to boolean 1.

  rhombus_random
    Draws a rhombus with random letters/digits and returns it as a string.

    If no option value is supplied or if it is invalid, then a default will
    be silently assumed (omitting all options will return a rhombus of 25
    lines).

    Given that the specified number of lines is even, it will be incremented
    to satisfy the requirement of being an odd number.

    Options:

    *   "lines"

        Number of lines to be printed. Defaults to 25.

    *   "fillup"

        The fillup character. Defaults to '.'.

EXPORT
  Functions
    "rhombus(), rhombus_letter(), rhombus_digit(), rhombus_random()" are
    exportable.

  Tags
    ":all - *()"

AUTHOR
    Steven Schubiger <schubiger@cpan.org>

LICENSE
    This program is free software; you may redistribute it and/or modify it
    under the same terms as Perl itself.

    See <http://dev.perl.org/licenses/>