Initial import

etc/servers/work-server/src/lib/identifier.ts

@@ -0,0 +1,9 @@
+const IDENTIFIER_PATTERN = /^[a-zA-Z_][a-zA-Z0-9_]*$/;
+
+export function assertIdentifier(value: string, label = 'identifier') {
+  if (!IDENTIFIER_PATTERN.test(value)) {
+    throw new Error(`Invalid ${label}: ${value}`);
+  }
+
+  return value;
+}