javascript - PO Box Regular Expression Validation

Question

Here's my code, but I can't ever trigger the alert.

$(document).ready( function (){
    $("[id*='txtAddress1S']").blur(function() {
        var pattern = new RegExp('[P|p]*(OST|ost)*.*s*[O|o|0]*(ffice|FFICE)*.*s*[B|b][O|o|0][X|x]');
        if ($("[id*='txtAddress1S']").val().match(pattern)) {
            alert('We are unable to ship to a Post Office Box.
Please provide a different shipping address.'); 
        }

    });
});

Answer 1

I tried several PO Box RegExp patterns found on the internet including the ones posted on Stack Overflow, none of them passed our test requirements. Hence, I posted our RegExp below and our test sets:

var poBox = /^ *((#d+)|((box|bin)[-. /\]?d+)|(.*p[ .]? ?(o|0)[-. /\]? *-?((box|bin)|b|(#|num)?d+))|(p(ost)? *(o(ff(ice)?)?)? *((box|bin)|b)? *d+)|(p *-?/?(o)? *-?box)|post office box|((box|bin)|b) *(number|num|#)? *d+|(num|number|#) *d+)/i;

var matches = [ //"box" can be substituted for "bin" 
    "#123", 
    "Box 123", 
    "Box-122", 
    "Box122", 
    "HC73 P.O. Box 217", 
    "P O Box125", 
    "P. O. Box", 
    "P.O 123", 
    "P.O. Box 123", 
    "P.O. Box", 
    "P.O.B 123",
    "P.O.B. 123", 
    "P.O.B.", 
    "P0 Box", 
    "PO 123", 
    "PO Box N", 
    "PO Box", 
    "PO-Box", 
    "POB 123", 
    "POB", 
    "POBOX123",
    "Po Box", 
    "Post 123", 
    "Post Box 123", 
    "Post Office Box 123", 
    "Post Office Box", 
    "box #123", 
    "box 122", 
    "box 123", 
    "number 123", 
    "p box", 
    "p-o box", 
    "p-o-box", 
    "p.o box", 
    "p.o. box", 
    "p.o.-box", 
    "p.o.b. #123", 
    "p.o.b.", 
    "p/o box", 
    "po #123", 
    "po box 123", 
    "po box", 
    "po num123", 
    "po-box", 
    "pobox", 
    "pobox123", 
    "post office box" 
];

var nonMatches = [ 
    "The Postal Road", 
    "Box Hill", 
    "123 Some Street", 
    "Controller's Office", 
    "pollo St.", 
    "123 box canyon rd", 
    "777 Post Oak Blvd", 
    "PSC 477 Box 396", 
    "RR 1 Box 1020" 
];