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add fschmidt source
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 05 Oct 2025 17:24:15 -0600
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67:9d0fefce6985 68:00520880ad02
1 /*
2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
3
4 Permission is hereby granted, free of charge, to any person obtaining a copy
5 of this software and associated documentation files (the "Software"), to deal
6 in the Software without restriction, including without limitation the rights
7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 copies of the Software, and to permit persons to whom the Software is
9 furnished to do so, subject to the following conditions:
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 THE SOFTWARE.
21 */
22
23 package fschmidt.util.mail;
24
25 import java.util.regex.Pattern;
26
27 public class MailAddress {
28
29 public static final Pattern EMAIL_PATTERN =
30 Pattern.compile("\\b(\\w[-+~.\\w]*)@[-\\w]+(\\.[-\\w]+)*\\.[a-zA-Z]+\\b");
31
32 private final String addrSpec;
33 private final String displayName;
34
35 public MailAddress(String addrSpec) {
36 this(addrSpec,null);
37 }
38
39 public MailAddress(String addrSpec,String displayName) {
40 this.addrSpec = addrSpec;
41 this.displayName = displayName;
42 }
43
44 public String getAddrSpec() {
45 return addrSpec;
46 }
47
48 public String getDisplayName() {
49 return displayName;
50 }
51
52 public String toString() {
53 return displayName==null ? addrSpec : displayName+" <"+addrSpec+">";
54 }
55
56 public boolean equals(Object o) {
57 if( !(o instanceof MailAddress) )
58 return false;
59 MailAddress ma = (MailAddress)o;
60 return addrSpec.equals(ma.addrSpec);
61 }
62
63 public int hashCode() {
64 return addrSpec.hashCode();
65 }
66
67 public boolean isValid() {
68 return EMAIL_PATTERN.matcher(addrSpec).matches() && addrSpec.indexOf("..") == -1;
69 }
70
71 // Test Code ----------------------------------------------------------------------------------
72
73 public static void main(String[] args) {
74 String[] valid = {
75 "none@none.net",
76 "none-owner@none.net",
77 "none+owner@none.net",
78 "none-the-owner@none.net.us",
79 "none.owner@none.net.us",
80 "fwd+lists~2B1264539414801-166331~40in.nabble.com+pharo-project-request~40lists.gforge.inria.fr+-679136591@in.nabble.com"
81 };
82
83 String[] invalid = {
84 // "none-@none.net", // not sure
85 "none...@none.net",
86 "none@none.net-",
87 "...none@none.net.us...",
88 ".-.@---",
89 "none@none+plus.com",
90 "none @none.net",
91 "none@ none.net",
92 "abc.example.com",
93 // "abc.@example.com", // not sure
94 "abc..123@example.com",
95 "a@b@c@example.com",
96 "()[]\\;:,<>@example.com"
97 };
98
99 System.out.println("--- Valid (Only TRUE)");
100 printEmailValidation(valid);
101
102 System.out.println("--- Invalid (Only FALSE)");
103 printEmailValidation(invalid);
104 }
105
106 private static void printEmailValidation(String[] valid) {
107 for (String s : valid) {
108 MailAddress mailAddress = new MailAddress(s);
109 System.out.println(s + " (" + mailAddress.isValid() + ')');
110 }
111 }
112 }