Style conversion for NIT / TAX ID: "C/F"

[Tropicalrambler]

Actual Behavior

For certain suppliers and customers, the Tax ID does not exist, therefore, users may enter "C/F" or "Consumidor Final". This can be entered many ways. Our application requires the string: "C/F" because it is what the invoice generator requires from US. However, many users manually enter other values, which represent the same thing, but formatted differently (see examples below)

Examples:

{
variant01: "CF",
variant02: "Cf",
variant03: "cF",
variant04: "cf",
variant05: "C.F.",
variant06: "C.f.",
variant07: "c.F.",
variant08: "c.f.",
variant09: "CF.",
variant10: "Cf.",
variant11: "cF.",
variant12: "cf.",
variant13: "C.F",
variant14: "C.f",
variant15: "c.F",
variant16: "c.f",
variant17: "C/f",
variant18: "c/F",
variant19: "c/f",
variant20: "C./F.",
variant21: "C./f.",
variant22: "c./F.",
variant23: "c./f.",
variant24: "C/F.",
variant25: "C/f.",
variant26: "c/F.",
variant27: "c/f.",
variant28: "C./F",
variant29: "C./f",
variant30: "c./F",
variant31: "c./f",
variant32: "Consumidor Final",
variant33: "consumidor Final",
variant34: "Consumidor final",
variant35: "Cons. final",
variant36: "cons. final",
variant37: "cons final",
variant38: "cnsmdr final",
variant39: "cons fin",
variant39: "cons/fin"
}

Expected behavior

Allow users to enter and save the C/F in any of the pre-specified format variations and combinations, for our application to interpret properly as "C/F" when sending to generate the electronic invoice.