Please, give us a bigger picture. If the "ad hoc conditionals" will only come from the programmer (i.e. the code), there's no need for a structure, just use an anonymous subroutine: 
my $allowed = sub { grep $_[0] == $_, 10022, 96813, 55401 };
if ($allowed->($redis_handle->get('key')) {
    # do something
}

[download]

But, if users will be creating those conditionals, you need a language + parser (or a GUI to build the conditionals graphically).

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Module for Conditional Parsing by choroba
in thread Module for Conditional Parsing by mwb613

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