From 2914519108341ae4f28fc8a633929462a24ff244 Mon Sep 17 00:00:00 2001
From: Marshall Lochbaum <mwlochbaum@gmail.com>
Date: Fri, 16 Jul 2021 07:26:12 -0400
Subject: Don't execute empty lines in the interactive REPL

---
 bqn.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bqn.js b/bqn.js
index f03c3c66..629a923c 100755
--- a/bqn.js
+++ b/bqn.js
@@ -147,7 +147,9 @@ if (!module.parent) {
     let e = exec(s=>show(repl(str(s))));
     stdin.on('end', () => { process.exit(); });
     stdin.on('readable', () => {
-      let inp; while ((inp=stdin.read())!==null) { e(inp.toString()); }
+      let inp; while ((inp=stdin.read())!==null) {
+        if (!/^[ \t]*[#\n]/.test(inp)) e(inp.toString());
+      }
     });
   } else if (arg0[0] !== '-' || (arg0==='-f'&&(arg0=(args=args.slice(1))[0],1))) {
     let f=arg0, a=list(args.slice(1).map(str));
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