1
2
3
4 package net.sourceforge.pmd.lang.java.rule.regex;
5
6 import java.util.ArrayList;
7 import java.util.List;
8 import java.util.regex.Matcher;
9 import java.util.regex.Pattern;
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16
17
18 public final class RegexHelper {
19
20
21
22
23 private RegexHelper() {
24 }
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31
32 public static List<Pattern> compilePatternsFromList(List<String> list) {
33 List<Pattern> patterns;
34 if (list != null && !list.isEmpty()) {
35 patterns = new ArrayList<Pattern>(list.size());
36 for (String stringPattern : list) {
37 if (stringPattern != null && !"".equals(stringPattern)) {
38 patterns.add(Pattern.compile(stringPattern));
39 }
40 }
41 } else {
42 patterns = new ArrayList<Pattern>(0);
43 }
44 return patterns;
45 }
46
47
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54
55
56 public static boolean isMatch(Pattern pattern, String subject) {
57 if (subject != null && !"".equals(subject)) {
58 Matcher matcher = pattern.matcher(subject);
59 if (matcher.find()) {
60 return true;
61 }
62 }
63 return false;
64 }
65
66 }