diff --git a/tests/stdlib/treloop.nim b/tests/stdlib/treloop.nim
new file mode 100644
index 0000000000..35236708cb
--- /dev/null
+++ b/tests/stdlib/treloop.nim
@@ -0,0 +1,9 @@
+discard """
+  output: "@[(, +,  1,  2, )]"
+"""
+
+import re
+
+let str = "(+ 1 2)"
+var tokenRE = re"""[\s,]*(~@|[\[\]{}()'`~^@]|"(?:\\.|[^\\"])*"|;.*|[^\s\[\]{}('"`,;)]*)"""
+echo str.findAll(tokenRE)