import java.util.*;
import java.util.regex.*;
import java.lang.*;
import java.io.*;
class Ideone
{
{
String text
= "test\\\\\"escape\\\"test\\"; String output
= Pattern.
compile("(\\\\+\")") .matcher(text)
.replaceAll(mr -> Matcher.quoteReplacement(mr.group().substring(1)));
}
}
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