https://umehealth.co.uk/wp-content/plugins/e-signature/assets/js/esig-validation.js?ver=2.1.7.2

1var esig_validation = {
2    is_email: function (email_address) {
3        var filter = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
4        if (filter.test(email_address)) {
5            return true;
6        } else {
7            return false;
8        }
9    },
10    is_string: function (input_string) {
11
12        // check string is not empty
13        if (input_string === "") {
14            return false;
15        }
16        // check string is not empty
17        if (!input_string) {
18            return false;
19        }
20        // check string is not undefined and not null
21        if(typeof(input_string) === "undefined" && input_string === null)
22        {
23            return false;
24        }
25
26        // Regex to check valid HTML tag.
27        const regexPattern = new RegExp("<(\"[^\"]*\"|'[^']*'|[^'\">])*>") ;
28        // check string for html tags.
29        if (regexPattern.test(input_string))
30        {
31            // no html
32            return false;
33        }
34
35        return true;
36    },
37    is_fullName: function (value) {
38        // check for double spaces.
39        if (/\s{2}/.test(value)) return false;
40        // Emoji validation
41        const regexExpEmoji = /(©|®|[ -㌀]|\ud83c[퀀-\udfff]|\ud83d[퀀-\udfff]|\ud83e[퀀-\udfff])/gi;
42        if (regexExpEmoji.test(value)) return false;
43        // name validation: allow letters (incl. accented), hyphens, apostrophes, periods, commas, and spaces
44        const regexp = new RegExp(/^[^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]([-'.,]?[^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]+)*( [^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]([-'.,]?[^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]+)*)*$/i);
45        return regexp.test(value);
46
47    },
48};
49
50
51(function ($) {
52
53    $.validator.addMethod("esiglegalname", function (value, element) {
54
55        const japanesRegex = /[　-〿]|[぀-ゟ]|[゠-ヿ]|[＀-￯]|[一-龯]|[★-☆]|[←-↕]|※/g;
56
57        if(japanesRegex.test(value)) {
58            return this.optional(element) || japanesRegex.test(value);
59        }
60
61        // check for double spaces
62        if (/\s{2}/.test(value)) return false;
63
64        // emoji validation
65        const regexExpEmoji = /(©|®|[ -㌀]|\ud83c[퀀-\udfff]|\ud83d[퀀-\udfff]|\ud83e[퀀-\udfff])/gi;
66        if (regexExpEmoji.test(value)) return false;
67
68        // name validation: allow letters (incl. accented), hyphens, apostrophes, periods, commas, and spaces
69        const regexp = new RegExp(/^[^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]([-'.,]?[^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]+)*( [^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]([-'.,]?[^_!¡?÷?¿\\+=@#$%ˆ*{}|~<>;:[\]]+)*)*$/i);
70        return this.optional(element) || regexp.test(value);
71
72    }, "A valid name is required to sign this document");
73
74})(jQuery);