From de256105eb62237f0ec1c2d104a3ab12c04b16cf Mon Sep 17 00:00:00 2001
From: David Majda <david@majda.cz>
Date: Sun, 12 Feb 2012 19:10:30 +0100
Subject: [PATCH] /bin/pegjs: Don't close standard output

Avoids "Error: process.stdout cannot be closed" error when invoked
without file arguments.
---
 bin/pegjs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bin/pegjs b/bin/pegjs
index 08ca376..8c2048b 100755
--- a/bin/pegjs
+++ b/bin/pegjs
@@ -138,5 +138,7 @@ readStream(inputStream, function(input) {
   }
 
   outputStream.write(exportVar + " = " + parser.toSource() + ";\n");
-  outputStream.end();
+  if (outputStream !== process.stdout) {
+    outputStream.end();
+  }
 });