From 38816759fc7f70605ecfd73304b9d442db388b78 Mon Sep 17 00:00:00 2001
From: Scott Olson <scott@solson.me>
Date: Tue, 23 Feb 2016 18:30:21 -0600
Subject: [PATCH] Ignore blank inputs.

Previously, nix-repl would consider this an incomplete parse and wait for the
next line as if it was a multiline input.

Blank lines in the middle of a multiline input will continue to work.
---
 nix-repl.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nix-repl.cc b/nix-repl.cc
index 1cdff20fd..6f4287a2b 100644
--- a/nix-repl.cc
+++ b/nix-repl.cc
@@ -106,7 +106,7 @@ void NixRepl::mainLoop(const Strings & files)
         }
 
         try {
-            if (!processLine(input)) return;
+            if (!removeWhitespace(input).empty() && !processLine(input)) return;
         } catch (ParseError & e) {
             if (e.msg().find("unexpected $end") != std::string::npos) {
                 // For parse errors on incomplete input, we continue waiting for the next line of