import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "^(?<classname>[\\w\\.]+)?(?:#(?<member>\\w+))?(?:\\((?<params>.*)\\))?(?:\\s(?<label>\\w+(?:\\s\\w+)*))?$";
final String string = "Moo#withRecipientsWithDefaultName(String, Collection, RecipientType) label\n"
+ "#withRecipientsWithDefaultName(String, Collection, RecipientType) label\n"
+ "#withRecipientsWithDefaultName(String, Collection, RecipientType)\n"
+ "#withRecipientsWithDefaultName\n"
+ "Moo#withRecipientsWithDefaultName label\n"
+ "#withRecipientsWithDefaultName label\n"
+ "ClassName myLabel\n"
+ "ClassName#member\n"
+ "ClassName my label\n"
+ "ClassName\n"
+ "org.company.ClassName";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html