Split stackable property away from the class in items.json

contrib/items.py

@@ -0,0 +1,72 @@
+import json
+import csv
+
+items = {}
+
+item_patches = {
+    "tbk": {"class": "tome"},
+    "ibk": {"class": "tome"},
+}
+
+# build code -> names map
+with open("item-names.json", encoding="utf-8-sig") as f:
+    names = json.load(f)
+
+names = []
+for entry in names:
+    code = entry["Key"]
+    if len(code) != 3 or not code.islower():
+        continue
+    name = entry["enUS"]
+    names[code] = {"name": name}
+
+# Extract items
+with open("armor.txt", newline="") as f:
+    reader = csv.DictReader(f, delimiter="\t")
+    for row in reader:
+        if row["name"] == "Expansion":
+            continue
+        code = row["code"]
+        assert code not in items
+        items[code] = {
+            "name": names[code] if code in names else row["name"],
+            "class": "armor",
+            "type": row["type"],
+            "stackable": bool(row["stackable"]),
+        }
+
+with open("weapons.txt", newline="") as f:
+    reader = csv.DictReader(f, delimiter="\t")
+    for row in reader:
+        if row["name"] == "Expansion":
+            continue
+        code = row["code"]
+        if code in items:
+            print("Already in", code)
+        assert code not in items
+        items[code] = {
+            "name": names[code] if code in names else row["name"],
+            "class": "weapon",
+            "type": row["type"],
+            "stackable": bool(row["stackable"]),
+        }
+
+with open("misc.txt", newline="") as f:
+    reader = csv.DictReader(f, delimiter="\t")
+    for row in reader:
+        if row["name"] == "Expansion":
+            continue
+        code = row["code"]
+        assert code not in items
+        items[code] = {
+            "name": names[code] if code in names else row["name"],
+            "class": "misc",
+            "type": row["type"],
+            "stackable": bool(row["stackable"]),
+        }
+
+for code, patch in item_patches.items():
+    items[code].update(patch)
+
+with open("items.json", "w") as f:
+    json.dump(items, f, indent=4)