Finish making numbering declarative

src/export/packer/numbering-replacer.ts

@@ -0,0 +1,17 @@
+import { ConcreteNumbering } from "file";
+
+export class NumberingReplacer {
+    public replace(xmlData: string, concreteNumberings: ConcreteNumbering[]): string {
+        let currentXmlData = xmlData;
+
+        for (const concreteNumbering of concreteNumberings) {
+            if (!concreteNumbering.reference) {
+                continue;
+            }
+
+            currentXmlData = currentXmlData.replace(new RegExp(`{${concreteNumbering.reference}}`, "g"), concreteNumbering.id.toString());
+        }
+
+        return currentXmlData;
+    }
+}