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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. import java.util.regex.*;
  5.  
  6. class Ideone
  7. {
  8. public static void main (String[] args) throws java.lang.Exception
  9. {
  10. String param = "[\"\\n\",\"\\t\",\"'\",\"\\\"\",\"\\\\\",\"\\\\\\\"\"]";
  11. System.out.println(param);
  12. String regex = "(?s)(?<!\\\\)((?:\\\\{2})*)\"([^\"\\\\]*(?:\\\\.[^\"\\\\]*)*)\"";
  13. param = param.replaceAll(regex, "$1$2");
  14. System.out.println(param);
  15.  
  16. }
  17. }
Success #stdin #stdout 0.04s 4386816KB
stdin
Standard input is empty
stdout
["\n","\t","'","\"","\\","\\\""]
[\n,\t,',\",\\,\\\"]