Generate Unique Random Coupon Codes

Generate using patternX

This generates codes of a certain pattern. The pattern is defined by characters that correspond to a characterset:
    X = Uppercase (A, B, C, ...)
    x = Lowercase (a, b, c, ...)
    9 = Digits (0, 1, 2, ...)
    A = Uppercase + Digits (A, B, .. + 0, 1 ..)
    a = Lowercase + Digits (a, b, .. + 0, 1 ..)
    # = Special characters ($, %, &, ...)
    ! = Punctuation (!, ?, ...)
    [ = Brackets ([, ], (, ...)
    v = Vowels (a, e, i, ...)
    V = Uppercase vowels (A, E, I, ...)
    c = Consonants (b, c, d, ...)
    C = Uppercase consonants (B, C, D, ...)
    ? = Random from all characters above
    / = Escape character

All other characters are used as literals. Characters following the escape character (ie. /X) will be used as a literal.

Generation options

Codes to generate is the number of codes that will be generated. To avoid confusion, it is possible to exclude characters from the code generation that look-a-like on a screen (I, l, 1, |, O, 0). The result set can be sorted alphabetically / numerically.
The codes can be outputted to the screen or to a downloadable CSV file.