Extract filterOverlappingMatches function from ratingViewPlugin.ts

src/editor-extension/ratingViewPlugin/filterOverlappingMatches.ts

@@ -0,0 +1,22 @@
+import { RatingMatch } from '../RatingMatch';
+
+/**
+ * Filter overlapping matches, keeping the first one in each overlapping group
+ */
+export function filterOverlappingMatches(matches: RatingMatch[]): RatingMatch[] {
+  // Sort matches by start position (required by RangeSetBuilder)
+  const sortedMatches = [...matches].sort((a, b) => a.start - b.start);
+  
+  // Remove overlapping matches (keep the first one)
+  const filteredMatches: RatingMatch[] = [];
+  let lastEnd = -1;
+  
+  for (const match of sortedMatches) {
+    if (match.start >= lastEnd) {
+      filteredMatches.push(match);
+      lastEnd = match.end;
+    }
+  }
+  
+  return filteredMatches;
+}