Masked Input //Javascript Object

jonasraoni (Jonas Raoni Soares Silva) — Fri, 09 Sep 2005 04:10:55 GMT

Simple and generic mask routine.

[UPDATED CODE AND HELP CAN BE FOUND HERE]

@REQUIRES Event-Listener



// REQUIRES: http://jsfromhell.com/geral/event-listener



//+ Jonas Raoni Soares Silva

//@ http://jsfromhell.com/forms/masked-input [v1.0]



MaskInput = function(f, m){ //v1.0

    function mask(e){

        var patterns = {"1": /[A-Z]/i, "2": /[0-9]/, "4": /[À-ÿ]/i, "8": /./ },

            rules = { "a": 3, "A": 7, "9": 2, "C":5, "c": 1, "*": 8};

        function accept(c, rule){

            for(var i = 1, r = rules[rule] || 0; i <= r; i<<=1)

                if(r & i && patterns[i].test(c))

                    break;

                return i <= r || c == rule;

        }

        var k, mC, r, c = String.fromCharCode(k = e.key), l = f.value.length;

        (!k || k == 8 ? 1 : (r = /^(.)\^(.*)$/.exec(m)) && (r[0] = r[2].indexOf(c) + 1) + 1 ?

            r[1] == "O" ? r[0] : r[1] == "E" ? !r[0] : accept(c, r[1]) || r[0]

            : (l = (f.value += m.substr(l, (r = /[A|9|C|\*]/i.exec(m.substr(l))) ?

            r.index : l)).length) < m.length && accept(c, m.charAt(l))) || e.preventDefault();

    }

    for(var i in !/^(.)\^(.*)$/.test(m) && (f.maxLength = m.length), {keypress: 0, keyup: 1})

        addEvent(f, i, mask);

};



//]]>

Usage (sorry, i'm lazy to write a help hahaha)





telephone "(99)9999-9999"







date "99/99/9999"









máscara = letter + letter withou accent + 2 numbers + "-" + anything + letter "Cc99-*C"









everything, but a, b or c "E^abc"









only a, b or c "O^abc"









just letters "C^"









just letters and also white-space "C^ "









just numbers and also the letters a, b e c "9^abc"

DZone Snippets: masked code

Masked Input //Javascript Object