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  1. import java.util.regex.Matcher;
  2. import java.util.regex.Pattern;
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		String regex = "(?s)(my_folder/(?:[^/\\n]+/)*[^/\\n]+\\.xml)::(?!.*\\1)";
  13. 		String string = " my_folder/foo.xml::someextracontent\n"
  14. 			 + " my_folder/foo.xml::someextracontent\n"
  15. 			 + " another_folder/foo.xml::someextracontent\n"
  16. 			 + " my_folder/bar.xml::someextracontent\n"
  17. 			 + " my_folder/bar.xml::someextracontent\n"
  18. 			 + " my_folder/hello.xml::someextracontent\n\n\n"
  19. 			 + "my_folder/test1/test2/bar.xml::someextracontent\n"
  20. 			 + "my_folder/test1/test2/bar.xml::someextracontent";
  21.  
  22. 		Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
  23. 		Matcher matcher = pattern.matcher(string);
  24.  
  25. 		while (matcher.find()) {
  26. 	        System.out.println(matcher.group(1));
  27. 		}
  28. 	}
  29. }
Success #stdin #stdout 0.06s 2184192KB
comments (?)
stdin 
Standard input is empty
stdout 
my_folder/foo.xml
my_folder/bar.xml
my_folder/hello.xml
my_folder/test1/test2/bar.xml
https://ideone.com/683qTq
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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