https://www.tsk-mosenergo.ru/local/templates/mosenergo/assets/js/jquery.maskedinput.js?15594866477291

1function getPasteEvent() {
2    var el = document.createElement('input'),
3        name = 'onpaste';
4    el.setAttribute(name, '');
5    return (typeof el[name] === 'function')?'paste':'input';             
6}
7
8var pasteEventName = getPasteEvent() + ".mask",
9	ua = navigator.userAgent,
10	iPhone = /iphone/i.test(ua),
11	android=/android/i.test(ua),
12	caretTimeoutId;
13
14$.mask = {
15	//Predefined character definitions
16	definitions: {
17		'9': "[0-9]",
18		'a': "[A-Za-z]",
19		//Исправление [A-Za-z0-9] на [A-Za-z0-9а-яА-ЯёЁ]
20		'*': "[A-Za-z0-9а-яА-ЯёЁ]"
21	},
22	dataName: "rawMaskFn",
23	placeholder: '_',
24};
25
26$.fn.extend({
27	//Helper Function for Caret positioning
28	caret: function(begin, end) {
29		var range;
30
31		if (this.length === 0 || this.is(":hidden")) {
32			return;
33		}
34
35		if (typeof begin == 'number') {
36			end = (typeof end === 'number') ? end : begin;
37			return this.each(function() {
38				if (this.setSelectionRange) {
39					this.setSelectionRange(begin, end);
40				} else if (this.createTextRange) {
41					range = this.createTextRange();
42					range.collapse(true);
43					range.moveEnd('character', end);
44					range.moveStart('character', begin);
45					range.select();
46				}
47			});
48		} else {
49			if (this[0].setSelectionRange) {
50				begin = this[0].selectionStart;
51				end = this[0].selectionEnd;
52			} else if (document.selection && document.selection.createRange) {
53				range = document.selection.createRange();
54				begin = 0 - range.duplicate().moveStart('character', -100000);
55				end = begin + range.text.length;
56			}
57			return { begin: begin, end: end };
58		}
59	},
60	unmask: function() {
61		return this.trigger("unmask");
62	},
63	mask: function(mask, settings) {
64		var input,
65			defs,
66			tests,
67			partialPosition,
68			firstNonMaskPos,
69			len;
70
71		if (!mask && this.length > 0) {
72			input = $(this[0]);
73			return input.data($.mask.dataName)();
74		}
75		settings = $.extend({
76			placeholder: $.mask.placeholder, // Load default placeholder
77			completed: null
78		}, settings);
79
80
81		defs = $.mask.definitions;
82		tests = [];
83		partialPosition = len = mask.length;
84		firstNonMaskPos = null;
85
86		$.each(mask.split(""), function(i, c) {
87			if (c == '?') {
88				len--;
89				partialPosition = i;
90			} else if (defs[c]) {
91				tests.push(new RegExp(defs[c]));
92				if (firstNonMaskPos === null) {
93					firstNonMaskPos = tests.length - 1;
94				}
95			} else {
96				tests.push(null);
97			}
98		});
99
100		return this.trigger("unmask").each(function() {
101			var input = $(this),
102				buffer = $.map(
103				mask.split(""),
104				function(c, i) {
105					if (c != '?') {
106						return defs[c] ? settings.placeholder : c;
107					}
108				}),
109				focusText = input.val();
110
111			function seekNext(pos) {
112				while (++pos < len && !tests[pos]);
113				return pos;
114			}
115
116			function seekPrev(pos) {
117				while (--pos >= 0 && !tests[pos]);
118				return pos;
119			}
120
121			function shiftL(begin,end) {
122				var i,
123					j;
124
125				if (begin<0) {
126					return;
127				}
128
129				for (i = begin, j = seekNext(end); i < len; i++) {
130					if (tests[i]) {
131						if (j < len && tests[i].test(buffer[j])) {
132							buffer[i] = buffer[j];
133							buffer[j] = settings.placeholder;
134						} else {
135							break;
136						}
137
138						j = seekNext(j);
139					}
140				}
141				writeBuffer();
142				input.caret(Math.max(firstNonMaskPos, begin));
143			}
144
145			function shiftR(pos) {
146				var i,
147					c,
148					j,
149					t;
150
151				for (i = pos, c = settings.placeholder; i < len; i++) {
152					if (tests[i]) {
153						j = seekNext(i);
154						t = buffer[i];
155						buffer[i] = c;
156						if (j < len && tests[j].test(t)) {
157							c = t;
158						} else {
159							break;
160						}
161					}
162				}
163			}
164
165			function keydownEvent(e) {
166				var k = e.which,
167					pos,
168					begin,
169					end;
170
171				//backspace, delete, and escape get special treatment
172				if (k === 8 || k === 46 || (iPhone && k === 127)) {
173					pos = input.caret();
174					begin = pos.begin;
175					end = pos.end;
176
177					if (end - begin === 0) {
178						begin=k!==46?seekPrev(begin):(end=seekNext(begin-1));
179						end=k===46?seekNext(end):end;
180					}
181					clearBuffer(begin, end);
182					shiftL(begin, end - 1);
183
184					e.preventDefault();
185				} else if (k == 27) {//escape
186					input.val(focusText);
187					input.caret(0, checkVal());
188					e.preventDefault();
189				}
190			}
191
192			function keypressEvent(e) {
193				var k = e.which,
194					pos = input.caret(),
195					p,
196					c,
197					next;
198
199				if (e.ctrlKey || e.altKey || e.metaKey || k < 32) {//Ignore
200					return;
201				} else if (k) {
202					if (pos.end - pos.begin !== 0){
203						clearBuffer(pos.begin, pos.end);
204						shiftL(pos.begin, pos.end-1);
205					}
206
207					p = seekNext(pos.begin - 1);
208					if (p < len) {
209						c = String.fromCharCode(k);
210						if (tests[p].test(c)) {
211							shiftR(p);
212
213							buffer[p] = c;
214							writeBuffer();
215							next = seekNext(p);
216
217							if(android){
218								setTimeout($.proxy($.fn.caret,input,next),0);
219							}else{
220								input.caret(next);
221							}
222
223							if (settings.completed && next >= len) {
224								settings.completed.call(input);
225							}
226						}
227					}
228					e.preventDefault();
229				}
230			}
231
232			function clearBuffer(start, end) {
233				var i;
234				for (i = start; i < end && i < len; i++) {
235					if (tests[i]) {
236						buffer[i] = settings.placeholder;
237					}
238				}
239			}
240
241			function writeBuffer() { input.val(buffer.join('')); }
242
243			function checkVal(allow) {
244				//try to place characters where they belong
245				var test = input.val(),
246					lastMatch = -1,
247					i,
248					c;
249
250				for (i = 0, pos = 0; i < len; i++) {
251					if (tests[i]) {
252						buffer[i] = settings.placeholder;
253						while (pos++ < test.length) {
254							c = test.charAt(pos - 1);
255							if (tests[i].test(c)) {
256								buffer[i] = c;
257								lastMatch = i;
258								break;
259							}
260						}
261						if (pos > test.length) {
262							break;
263						}
264					} else if (buffer[i] === test.charAt(pos) && i !== partialPosition) {
265						pos++;
266						lastMatch = i;
267					}
268				}
269				if (allow) {
270					writeBuffer();
271				} else if (lastMatch + 1 < partialPosition) {
272					input.val("");
273					clearBuffer(0, len);
274				} else {
275					writeBuffer();
276					input.val(input.val().substring(0, lastMatch + 1));
277				}
278				return (partialPosition ? i : firstNonMaskPos);
279			}
280
281			input.data($.mask.dataName,function(){
282				return $.map(buffer, function(c, i) {
283					return tests[i]&&c!=settings.placeholder ? c : null;
284				}).join('');
285			});
286
287			if (!input.attr("readonly"))
288				input
289				.one("unmask", function() {
290					input
291						.unbind(".mask")
292						.removeData($.mask.dataName);
293				})
294				.bind("focus.mask", function() {
295					clearTimeout(caretTimeoutId);
296					var pos,

297						moveCaret;
298
299					focusText = input.val();
300					pos = checkVal();
301					
302					caretTimeoutId = setTimeout(function(){
303						writeBuffer();
304						if (pos == mask.length) {
305							input.caret(0, pos);
306						} else {
307							input.caret(pos);
308						}
309					}, 10);
310				})
311				.bind("blur.mask", function() {
312					checkVal();
313					if (input.val() != focusText)
314						input.change();
315				})
316				.bind("keydown.mask", keydownEvent)
317				.bind("keypress.mask", keypressEvent)
318				.bind(pasteEventName, function() {
319					setTimeout(function() { 
320						var pos=checkVal(true);
321						input.caret(pos); 
322						if (settings.completed && pos == input.val().length)
323							settings.completed.call(input);
324					}, 0);
325				});
326			checkVal(); //Perform initial check for existing values
327		});
328	}
329});
330