From 2dc39bb77930dbae83d5815551d395a54b64a177 Mon Sep 17 00:00:00 2001
From: David Majda <david@majda.cz>
Date: Mon, 14 Jan 2013 20:33:35 +0100
Subject: [PATCH] bin/pegjs: Output just the parser source if --export-var is
 empty

This will make embedding generated parsers into other files easier.

Based on a patch by Glen Huang:

  https://github.com/dmajda/pegjs/pull/143
---
 bin/pegjs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bin/pegjs b/bin/pegjs
index a20aec8..20bd43c 100755
--- a/bin/pegjs
+++ b/bin/pegjs
@@ -197,7 +197,9 @@ readStream(inputStream, function(input) {
     }
   }
 
-  outputStream.write(exportVar + " = " + source + ";\n");
+  outputStream.write(
+    exportVar !== "" ? exportVar + " = " + source + ";\n" : source + "\n"
+  );
   if (outputStream !== process.stdout) {
     outputStream.end();
   }