ChatGPT <3

main.java

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* write me a java class that, given a File instance pointing to a text file, read all comments in that file. 
* Consider comments both like in shell, java or XML syntax. 
* For each comment, if the comment starts with a keyword (declared in a list), call a method corresponding to that keyword.
* ...
* nice. now extract each comment style to its own method. also use var for declarations when posible.
* ....
* done :)
*
*/
public class CommentProcessor {

    private static final List<String> KEYWORDS = Arrays.asList("TODO", "FIXME");

    public static void processComments(File file) throws IOException {
        try (var reader = new BufferedReader(new FileReader(file))) {
            String line;
            while ((line = reader.readLine()) != null) {
                processLine(line);
            }
        }
    }

    private static void processLine(String line) {
        if (processShellComment(line)) {
            return;
        }
        if (processJavaComment(line)) {
            return;
        }
        if (processXmlComment(line)) {
            return;
        }
    }

    private static boolean processShellComment(String line) {
        var pattern = Pattern.compile("^\\s*#\\s*(\\w+)\\b(.*)$");
        var matcher = pattern.matcher(line);
        if (matcher.matches()) {
            var keyword = matcher.group(1);
            if (KEYWORDS.contains(keyword)) {
                var comment = matcher.group(2);
                handleComment(keyword, comment);
                return true;
            }
        }
        return false;
    }

    private static boolean processJavaComment(String line) {
        var pattern = Pattern.compile("^\\s*//\\s*(\\w+)\\b(.*)$");
        var matcher = pattern.matcher(line);
        if (matcher.matches()) {
            var keyword = matcher.group(1);
            if (KEYWORDS.contains(keyword)) {
                var comment = matcher.group(2);
                handleComment(keyword, comment);
                return true;
            }
        }
        return false;
    }

    private static boolean processXmlComment(String line) {
        var pattern = Pattern.compile("^\\s*<!--\\s*(\\w+)\\b(.*)\\s*-->$");
        var matcher = pattern.matcher(line);
        if (matcher.matches()) {
            var keyword = matcher.group(1);
            if (KEYWORDS.contains(keyword)) {
                var comment = matcher.group(2);
                handleComment(keyword, comment);
                return true;
            }
        }
        return false;
    }

    private static void handleComment(String keyword, String comment) {
        switch (keyword) {
            case "TODO":
                handleTodoComment(comment);
                break;
            case "FIXME":
                handleFixmeComment(comment);
                break;
            // Add more cases for additional keywords
        }
    }

    private static void handleTodoComment(String comment) {
        System.out.println("Found TODO comment: " + comment);
        // Call the corresponding method to handle the TODO
    }

    private static void handleFixmeComment(String comment) {
        System.out.println("Found FIXME comment: " + comment);
        // Call the corresponding method to handle the FIXME
    }

    // Add more methods for additional keywords
}