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Oct 22nd, 2017
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  1. package P04_RegularExtensions;
  2.  
  3. import java.io.BufferedReader;
  4. import java.io.IOException;
  5. import java.io.InputStreamReader;
  6. import java.util.regex.Matcher;
  7. import java.util.regex.Pattern;
  8.  
  9. public class Main {
  10. public static void main(String[] args) throws IOException {
  11. BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
  12.  
  13. String text = reader.readLine();
  14. String line = reader.readLine();
  15.  
  16. while (!"Print".equals(line)) {
  17. if (line.contains("%")) {
  18. line = line.replaceAll("%", "[^ ]*");
  19. if (line.contains(".")) {
  20. line = line.replace(".", "\\.");
  21. }
  22. try {
  23. Pattern pattern = Pattern.compile(line);
  24. Matcher matcher = pattern.matcher(text);
  25. while (matcher.find()) {
  26. StringBuilder sb = new StringBuilder(matcher.group());
  27. text = text.replace(matcher.group(), sb.reverse());
  28. }
  29. } catch (Exception ex) {
  30. }
  31. } else {
  32. try {
  33. Pattern pattern = Pattern.compile(line);
  34. Matcher matcher = pattern.matcher(text);
  35. if (matcher.find()) {
  36. StringBuilder input = new StringBuilder(matcher.group(0));
  37. text = text.replaceAll(line, input.reverse().toString());
  38. }
  39. } catch (Exception ex) {
  40. }
  41. }
  42. line = reader.readLine();
  43. }
  44. System.out.println(text);
  45. }
  46. }
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