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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		String s = "foo bar [first [second] [third]] asdf ]]]]  [now [get] me [mor[e]] of this]]";
  10. 		List<String> balanced = getBalancedSubstrings(s, '[', ']', true);
  11. 		for (String str: balanced) {
  12. 			System.out.println(str);
  13. 		}
  14. 	}
  15.  
  16. 	public static List<String> getBalancedSubstrings(String s, Character markStart, 
  17.                                  Character markEnd, Boolean includeMarkers) 
  18. 	{
  19. 	        List<String> subTreeList = new ArrayList<String>();
  20. 	        int level = 0;
  21. 	        int lastOpenDelimiter = -1;
  22. 	        for (int i = 0; i < s.length(); i++) {
  23. 	            char c = s.charAt(i);
  24. 	            if (c == markStart) {
  25. 	                level++;
  26. 	                if (level == 1) {
  27. 	                    lastOpenDelimiter = (includeMarkers ? i : i + 1);
  28. 	                }
  29. 	            }
  30. 	            else if (c == markEnd) {
  31. 	                if (level == 1) {
  32. 	                    subTreeList.add(s.substring(lastOpenDelimiter, (includeMarkers ? i + 1 : i)));
  33. 	                }
  34. 	                if (level > 0) level--;
  35. 	            }
  36. 	        }
  37. 	        return subTreeList;
  38. 	    }
  39. }
  40.  
Success #stdin #stdout 0.04s 4386816KB
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Standard input is empty
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[first [second] [third]]
[now [get] me [mor[e]] of this]
https://ideone.com/hh6IBL
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
secret

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