From b13665b2751ee1c741ddef5e0cbc8a15c81d246f Mon Sep 17 00:00:00 2001
From: Sercan Turkmen <sercan@digitoygames.com>
Date: Mon, 3 Apr 2017 11:51:55 +0300
Subject: [PATCH] Fix error messages

---
 InlineYAML.hx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/InlineYAML.hx b/InlineYAML.hx
index c3614d1..3e6bd51 100644
--- a/InlineYAML.hx
+++ b/InlineYAML.hx
@@ -6,7 +6,7 @@ class InlineYAML {
 	static function main() : Int {
 		var args = Sys.args();
 		if (args == null || args.length < 2) {
-			Sys.stderr().writeString("expected 2 args but got less. inline-ymal in out");
+			Sys.println("Error: expected 2 args but got less. example: inline-ymal in out");
 			return 1;
 		}
 		
@@ -60,7 +60,13 @@ class InlineYAML {
 		var result : String = value;
 		var newVal = reg.map(value, function(r) : String {
 			var match = r.matched(1);
-			return usingMap.get(match);
+			var resultVal = usingMap.get(match);
+			if (resultVal == null) {
+				resultVal = r.matched(0);
+				Sys.println('Warning: can\'t find value for key: \'$match\' used in $value');
+			}
+			
+			return resultVal;
 		});
 		
 		return result != newVal ? newVal : null;