introduce bitloops

src/test/java/puzzle/ExportFormatTest.java

@@ -10,6 +10,8 @@ import puzzle.SwedishGenerator.Grid;
 import puzzle.SwedishGenerator.Lemma;
 import puzzle.SwedishGenerator.Rng;
 
+import java.io.IOException;
+import java.nio.file.Paths;
 import java.util.HashMap;
 
 import static org.junit.jupiter.api.Assertions.*;
@@ -29,7 +31,7 @@ public class ExportFormatTest {
       var clueMap = new HashMap<Integer, Lemma>();
       // key = (cellIndex << 4) | direction
       var key   = (0 << 4) | 2;
-      var lemma = new Lemma("TEST", 1, "A test word");
+      var lemma = new Lemma("TEST", 1);
       clueMap.put(key, lemma);
       
       // Manually fill the grid letters for "TEST" at (0,1), (0,2), (0,3), (0,4)
@@ -94,4 +96,16 @@ public class ExportFormatTest {
          assertTrue(row.matches("#+"));
       }
    }
+   @Test
+   void testIndex() {
+      var csv = Paths.get("nl_score_hints_v3.csv");
+      var idx = Paths.get("nl_score_hints_v3.idx");
+      
+      try (var svc = new CsvIndexService(csv, idx)) {
+         System.out.println(svc.getLine(1319));
+      } catch (IOException e) {
+         throw new RuntimeException(e);
+      }
+   }
+   
 }