1 files changed, 10 insertions, 0 deletions
diff --git a/test.txt b/test.txt
new file mode 100644
index 0000000..88001e4
--- /dev/null
+++ b/test.txt
@@ -0,0 +1,10 @@
+fmap f p = Parser ((.) (fmapEither (fmap1st f)) (runParser p));
+
+fmapEither f e = case e of {
+    Left x  -> Left x;
+    Right x -> Right (f x)
+};
+
+fmap1st f p = case p of {
+    (l, r) -> (f l, r)
+};