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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.net.URLEncoder;
  7.  
  8. public class Main
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		final String[] INPUT = new String[] {
  13. "<TEST>",
  14. "    <NODE1>",
  15. "         <VALUE>         Test</VALUE>",
  16. "    </NODE1>",
  17. "    <NODE1>",
  18. "        <VALUE>         Test</VALUE>",
  19. "    </NODE1>",
  20. "</TEST>"
  21. 	};
  22.  
  23. 		for (String str: INPUT) {
  24. 			System.out.println("NEW: " + htmlspecialchars(str));
  25. 		}
  26. 	}
  27.  
  28. 	private static String htmlspecialchars(String str) {
  29. 		return str
  30. 			.replaceAll("&", "&quot;")
  31. 			.replaceAll("<", "&lt;")
  32. 			.replaceAll(">", "&gt;")
  33. 			.replaceAll("(?<=^\\s*)\t", "    ")
  34. 			.replaceAll("(?<=^\\s*)    ", "&#09;")
  35. 			.replaceAll("(?<=^(?:&#09;)*) ", "&nbsp;");
  36. 	}
  37. }
Success #stdin #stdout 0.07s 3359744KB
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stdin
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Standard input is empty
stdout
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NEW: &lt;TEST&gt;
NEW: &#09;&lt;NODE1&gt;
NEW: &#09;&#09;&nbsp;&lt;VALUE&gt;         Test&lt;/VALUE&gt;
NEW: &#09;&lt;/NODE1&gt;
NEW: &#09;&lt;NODE1&gt;
NEW: &#09;&#09;&lt;VALUE&gt;         Test&lt;/VALUE&gt;
NEW: &#09;&lt;/NODE1&gt;
NEW: &lt;/TEST&gt;
https://ideone.com/I8AQex
Replace tabs and spaces, but not between tags
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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