From dc35484a906c23592e0170f051d74265ed2e8b46 Mon Sep 17 00:00:00 2001
From: Samir Benmendil <me@rmz.io>
Date: Sun, 14 Jan 2018 16:26:47 +0000
Subject: [PATCH] Use do to parse numbers

This is not necessarily better than the `liftM` method (probably isn't).
---
 app/Main.hs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/app/Main.hs b/app/Main.hs
index 58017c5..87b94aa 100644
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -34,7 +34,10 @@ parseAtom = do
                 _    -> Atom atom
 
 parseNumber :: Parser LispVal
-parseNumber = liftM (Number . read) $ many1 digit
+parseNumber = do
+    ds <- many1 digit
+    let a = read ds
+    return $ Number a
 
 parseExpr :: Parser LispVal
 parseExpr = parseString
-- 
2.48.1