From fd3df811217879ff65baa3e64207e52d54562241 Mon Sep 17 00:00:00 2001
From: halogenandtoast <halogenandtoast@gmail.com>
Date: Thu, 18 Dec 2014 13:07:05 -0500
Subject: [PATCH] Set yyin to file if provided.

---
 src/parse.y | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/parse.y b/src/parse.y
index cc65189..7da3304 100644
--- a/src/parse.y
+++ b/src/parse.y
@@ -205,6 +205,10 @@ main(int argc, const char**argv)
 {
   int n;
 
+  if (argc > 1) {
+    yyin = fopen(argv[1], "r");
+  }
+
   //  yydebug = 1;
   n = yyparse(NULL);
   if (n == 0) {