feat: add match & list command to test in game regex result + fix: now the hopper will not stop at the first mismatch, it will test all items inside a container

src/main/java/systems/brn/regexinghoppers/util/Tools.java

@@ -0,0 +1,56 @@
+package systems.brn.regexinghoppers.util;
+
+import java.util.regex.PatternSyntaxException;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import net.minecraft.block.entity.HopperBlockEntity;
+import net.minecraft.inventory.Inventory;
+import net.minecraft.item.Item;
+import net.minecraft.screen.NamedScreenHandlerFactory;
+import systems.brn.regexinghoppers.mixin.HopperBlockEntityAccessor;
+
+public class Tools {
+    public static final Logger LOGGER = LoggerFactory.getLogger("RegexingHoppers");
+
+    public static boolean itemMatch(String itemName, String regex) {
+        return itemName.matches(regex);
+    }
+
+    public static String getNameOf(Item item) {
+        return item.getName().getString().toLowerCase();
+    }
+
+    public static boolean shouldMove(Inventory hopper, Item item) {
+        if (!(hopper instanceof NamedScreenHandlerFactory)) {
+            // Log if hopper is not an instance of NamedScreenHandlerFactory
+            LOGGER.debug("Hopper is not an instance of NamedScreenHandlerFactory.");
+            return true;
+        }
+        NamedScreenHandlerFactory factory = (NamedScreenHandlerFactory) hopper;
+        String customName = factory.getDisplayName().getLiteralString();
+        if (customName == null || customName.isEmpty()) {
+            // Log case when custom name is null or empty
+            LOGGER.debug("Custom name is null or empty, not performing regex matching.");
+            return true;
+        }
+
+        // TODO: Test if this code still needed
+        if (hopper instanceof HopperBlockEntity) {
+            HopperBlockEntityAccessor hopperAccessor = (HopperBlockEntityAccessor) hopper;
+            if (hopperAccessor.getTransferCooldown() > 1) {
+                return false;
+            }
+        }
+
+        try {
+            return Tools.itemMatch(getNameOf(item), customName);
+        } catch (PatternSyntaxException e) {
+            // Log exception if regex pattern is invalid
+            LOGGER.debug("Invalid regex pattern: {}", customName, e);
+        }
+
+        return true;
+    }
+}