0.1.9

src/indexer/xpointer.ts

@@ -0,0 +1,24 @@
+import type { XmlDocument, XmlElement } from "../language/xmlParser";
+
+/** Lowercases nothing; returns the part after the last ":" in a tag name. */
+export function localName(tag: string): string {
+  const idx = tag.lastIndexOf(":");
+  return idx >= 0 ? tag.slice(idx + 1) : tag;
+}
+
+/**
+ * Resolves the xpointer subset used by real RA3 mods:
+ *   xmlns(n=uri:ea.com:eala:asset) xpointer(/n:ElementName/child::*)
+ *
+ * Returns the container element whose children are selected by the xpointer,
+ * or null when the form is unsupported / the container is missing.
+ */
+export function findXPointerContainer(
+  doc: XmlDocument,
+  xpointer: string,
+): XmlElement | null {
+  const m = /xpointer\(\/\w+:(\w+)\/child::\*\)/.exec(xpointer);
+  if (!m) return null;
+  const name = m[1];
+  return doc.elements.find((el) => localName(el.name) === name) ?? null;
+}