import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class MetadataStripper {

/**

* Strips metadata from file contents.

* @param filePath The path to the file.

* @return The file content without metadata, or null if an error occurs.

*/

public static String stripMetadata(String filePath) {

try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {

String line;

StringBuilder content = new StringBuilder();

while ((line = reader.readLine()) != null) {

// Remove common metadata patterns. Adding more patterns as needed.

String cleanedLine = line.replaceAll("\\^\\?", ""); // Remove Unix timestamp

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{2}\\s", ""); //Remove date and time

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{4}\\s", ""); //Remove date and time

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{1,2}\\s", ""); //Remove date and time

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{1,3}\\s", ""); //Remove date and time

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{1,4}\\s", ""); //Remove date and time

//Remove other metadata patterns

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{2}\\s", "");

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{3}\\s", "");

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{4}\\s", "");

cleanedLine = cleanedLine.replaceAll("\\^\\.\\d{5}\\s", "");

content.append(cleanedLine).append(System.lineSeparator());

}

return content.toString();

} catch (IOException e) {

System.err.println("Error reading file: " + e.getMessage());

return null;

}

}

public static void main(String[] args) {

//Example usage

String filePath = "example.txt";

String strippedContent = stripMetadata(filePath);

if (strippedContent != null) {

System.out.println(strippedContent);

}

}

}