https://kancelariakwk.pl/js/jquery.alphanumeric.pack.js

1(function ($) {
2    $.fn.alphanumeric = function (p) {
3        var input = $(this),
4            az = "abcdefghijklmnopqrstuvwxyzążśźćłóę",
5            options = $.extend({
6                ichars: '!@#$%^&*()+=[]\\\';,/{}|":<>?~`.- _',
7                nchars: '',
8                allow: '',
9                limit: 0,
10                counter: '' // todo
11            }, p),
12            s = options.allow.split(''),
13            i = 0,
14            ch,
15            regex;
16
17        for (i; i < s.length; i++) {
18            if (options.ichars.indexOf(s[i]) != -1) {
19                s[i] = '\\' + s[i];
20            }
21        }
22
23        if (options.nocaps) {
24            options.nchars += az.toUpperCase();
25        }
26        if (options.allcaps) {
27            options.nchars += az;
28        }
29        if (options.limit && options.limit > 0) {
30        	
31			var interval, f;
32			var self = input;
33					
34			$(this).focus(function(){
35				interval = window.setInterval(substring,100);
36			});
37			
38			$(this).bind("keyup keypress blur change", function(){
39				clearInterval(interval);
40				substring();
41			});
42			
43			substringFunction = "function substring(){ var val = $(self).val();var length = val.length;if(length > options.limit){$(self).val($(self).val().substring(0,options.limit));}";
44			if(typeof $(options.counter) != 'undefined')
45			{
46				
47				substringFunction += "if($(options.counter).html() != options.limit - length){$(options.counter).html((options.limit - length<=0)?'0':options.limit - length);}";
48				
49			}
50			substringFunction += "}";
51			
52			eval(substringFunction);
53			substring();
54			
55        }
56
57        options.allow = s.join('|');
58
59        regex = new RegExp(options.allow, 'gi');
60        ch = (options.ichars + options.nchars).replace(regex, '');
61
62        input.keypress(function (e) {
63            var key = String.fromCharCode(!e.charCode ? e.which : e.charCode);
64
65            if (ch.indexOf(key) != -1 && !e.ctrlKey) {
66                e.preventDefault();
67            }
68        });
69
70        input.blur(function () {
71            var value = input.val(),
72                j = 0;
73
74            for (j; j < value.length; j++) {
75                if (ch.indexOf(value[j]) != -1) {
76                    input.val('');
77                    return false;
78                }
79            }
80            return false;
81        });
82
83        return input;
84    };
85
86    $.fn.numeric = function (p) {
87        var az = 'abcdefghijklmnopqrstuvwxyzążśźćłóę',
88            aZ = az.toUpperCase();
89
90        return this.each(function () {
91            $(this).alphanumeric($.extend({ nchars: az + aZ }, p));
92        });
93    };
94
95    $.fn.alpha = function (p) {
96        var nm = '1234567890';
97        return this.each(function () {
98            $(this).alphanumeric($.extend({ nchars: nm }, p));
99        });
100    };
101    
102    
103    
104})(jQuery);