Overlay 2.0 (#12)

src/token-pos2-exclusions.ts

@@ -0,0 +1,31 @@
+import type { ResolvedTokenPos2ExclusionConfig, TokenPos2ExclusionConfig } from './types';
+import { normalizePos1ExclusionList } from './token-pos1-exclusions';
+
+export const DEFAULT_ANNOTATION_POS2_EXCLUSION_DEFAULTS = Object.freeze([
+  '非自立',
+]) as readonly string[];
+
+export const DEFAULT_ANNOTATION_POS2_EXCLUSION_CONFIG: ResolvedTokenPos2ExclusionConfig = {
+  defaults: [...DEFAULT_ANNOTATION_POS2_EXCLUSION_DEFAULTS],
+  add: [],
+  remove: [],
+};
+
+export function resolveAnnotationPos2ExclusionSet(
+  config: TokenPos2ExclusionConfig | ResolvedTokenPos2ExclusionConfig,
+): ReadonlySet<string> {
+  const defaults = normalizePos1ExclusionList(config.defaults ?? []);
+  const added = normalizePos1ExclusionList(config.add ?? []);
+  const removed = new Set(normalizePos1ExclusionList(config.remove ?? []));
+  const resolved = new Set<string>();
+  for (const value of defaults) {
+    resolved.add(value);
+  }
+  for (const value of added) {
+    resolved.add(value);
+  }
+  for (const value of removed) {
+    resolved.delete(value);
+  }
+  return resolved;
+}