Add expr to get the show item hover tag for a given item.

src/main/java/org/skriptlang/skript/bukkit/text/TextModule.java

@@ -64,6 +64,7 @@ public void loadSelf(SkriptAddon addon) {
 			EffSendTitle::register,
 			ExprColored::register,
 			ExprRawString::register,
+			ExprItemHoverText::register,
 			ExprStringColor::register
 		);
 	}

src/main/java/org/skriptlang/skript/bukkit/text/elements/expressions/ExprItemHoverText.java

@@ -0,0 +1,55 @@
+package org.skriptlang.skript.bukkit.text.elements.expressions;
+
+import ch.njol.skript.doc.Description;
+import ch.njol.skript.doc.Example;
+import ch.njol.skript.doc.Name;
+import ch.njol.skript.doc.Since;
+import ch.njol.skript.expressions.base.SimplePropertyExpression;
+import net.kyori.adventure.text.Component;
+import org.bukkit.event.Event;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.Nullable;
+import org.skriptlang.skript.registration.SyntaxInfo;
+import org.skriptlang.skript.registration.SyntaxRegistry;
+
+@Name("Show Item Hover Component")
+@Description("""
+	Creates a '<hover:show_item:...>' component from an item stack, which can be used to show the item's hover text in chat.
+	""")
+@Example("""
+	on right click on a chest:
+		send "Contents:"
+		loop items in inventory of event-block:
+			send formatted " - %item hover text of loop-item%%loop-item%"
+	""")
+@Since("INSERT VERSION")
+public class ExprItemHoverText extends SimplePropertyExpression<ItemStack, Component> {
+
+	public static void register(SyntaxRegistry registry) {
+		registry.register(SyntaxRegistry.EXPRESSION,
+			SyntaxInfo.Expression.builder(ExprItemHoverText.class, Component.class)
+				.addPattern("[a[n]] [show] item hover [text] component (for|using|from) %itemstacks%")
+				.supplier(ExprItemHoverText::new)
+				.build());
+	}
+
+	@Override
+	public Component convert(ItemStack from) {
+		return Component.empty().hoverEvent(from.asHoverEvent());
+	}
+
+	@Override
+	public Class<? extends Component> getReturnType() {
+		return Component.class;
+	}
+
+	@Override
+	protected String getPropertyName() {
+		throw new IllegalStateException("toString should be overridden");
+	}
+
+	@Override
+	public String toString(@Nullable Event event, boolean debug) {
+		return "item hover component for " + getExpr().toString(event, debug);
+	}
+}

src/test/skript/tests/syntaxes/expressions/ExprItemHoverText.sk

@@ -0,0 +1,7 @@
+test "item hover text":
+	assert item hover component for a diamond sword is formatted "<hover:show_item:diamond_sword>"
+	assert a show item hover component from 33 carrots is formatted "<hover:show_item:carrot:33>"
+	if running minecraft "1.21.5":
+		assert an item hover component using 99 carrots of mending 2 is formatted "<hover:show_item:carrot:99:enchantments:'{""minecraft:mending"":2}'>"
+	else:
+		assert an item hover component using 99 carrots of mending 2 is formatted "<hover:show_item:carrot:99:enchantments:'{levels:{""minecraft:mending"":2}}'>"