From 4647a7845631334cff3fbd333a46a465b8a1f387 Mon Sep 17 00:00:00 2001
From: Akash Mozumdar <akashmozumdar@gmail.com>
Date: Wed, 30 Jan 2019 14:50:54 -0500
Subject: [PATCH] skip empty sentence

---
 ExampleExtension/ExtensionImpl.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ExampleExtension/ExtensionImpl.cpp b/ExampleExtension/ExtensionImpl.cpp
index f84ee35..6a50ed2 100644
--- a/ExampleExtension/ExtensionImpl.cpp
+++ b/ExampleExtension/ExtensionImpl.cpp
@@ -21,6 +21,7 @@ extern "C" __declspec(dllexport) wchar_t* OnNewSentence(wchar_t* sentence, const
 		int origLength = sentenceStr.size();
 		if (ProcessSentence(sentenceStr, SentenceInfo{ miscInfo }))
 		{
+			if (sentenceStr.empty()) return nullptr;
 			// No need to worry about freeing this: Textractor does it for you.
 			wchar_t* newSentence = sentenceStr.size() > origLength ? (wchar_t*)HeapAlloc(GetProcessHeap(), 0, (sentenceStr.size() + 1) * sizeof(wchar_t)) : sentence;
 			wcscpy_s(newSentence, sentenceStr.size() + 1, sentenceStr.c_str());