From e85724693487e3f28fad36e031f4aa9b795bd642 Mon Sep 17 00:00:00 2001
From: Hackerpilot <briancschott@gmail.com>
Date: Mon, 2 Feb 2015 03:39:46 -0800
Subject: [PATCH] Improve command line argument handlings. #188

---
 src/client.d | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/client.d b/src/client.d
index f1904ff..13f28a0 100644
--- a/src/client.d
+++ b/src/client.d
@@ -56,15 +56,15 @@ int main(string[] args)
 			"doc|d", &doc, "query|q", &query, "search|s", &search,
 			"version", &printVersion);
 	}
-	catch (Exception e)
+	catch (ConvException e)
 	{
 		Log.fatal(e.msg);
+		printHelp(args[0]);
 		return 1;
 	}
 
 	AutocompleteRequest request;
 
-
 	if (printVersion)
 	{
 		version (Windows)
@@ -155,6 +155,11 @@ int main(string[] args)
 	}
 	else
 	{
+		if (!exists(args[1]))
+		{
+			stderr.writeln("Could not find ", args[1]);
+			return 1;
+		}
 		File f = File(args[1]);
 		sourceCode = uninitializedArray!(ubyte[])(to!size_t(f.size));
 		f.rawRead(sourceCode);