docs: add a note on Catalan number

igordejanovic · Jan 23, 2024 · 321f6ee · 321f6ee
1 parent b867181
commit 321f6ee
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -128,7 +128,8 @@ use rustemo::Parser;
 #[test]
 fn test_glr() {
     let forest = CalcParser::new().parse("2 + 3 * 4 + 1").unwrap();
-    // We have 5 possible solutions
+
+    // We have 5 possible solutions, see https://en.wikipedia.org/wiki/Catalan_number
     assert_eq!(forest.solutions(), 5);
 
     // Evaluate each tree from the forest

diff --git a/docs/src/readme_example/src/testglr/mod.rs b/docs/src/readme_example/src/testglr/mod.rs
@@ -7,7 +7,8 @@ use rustemo::Parser;
 #[test]
 fn test_glr() {
     let forest = CalcParser::new().parse("2 + 3 * 4 + 1").unwrap();
-    // We have 5 possible solutions
+
+    // We have 5 possible solutions, see https://en.wikipedia.org/wiki/Catalan_number
     assert_eq!(forest.solutions(), 5);
 
     // Evaluate each tree from the forest