From 5f505ac67a7ca7ed8914cd398309a7c803dc5bff Mon Sep 17 00:00:00 2001
From: "dsites@google.com"
 <dsites@google.com@b252ecd4-b096-bf77-eb8e-91563289f87e>
Date: Fri, 24 Oct 2014 23:50:00 +0000
Subject: [PATCH] This possibly avoids a crash on no-letters input

git-svn-id: https://cld2.googlecode.com/svn/trunk@170 b252ecd4-b096-bf77-eb8e-91563289f87e
---
 internal/getonescriptspan.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/internal/getonescriptspan.cc b/internal/getonescriptspan.cc
index 451249c..fe402f6 100644
--- a/internal/getonescriptspan.cc
+++ b/internal/getonescriptspan.cc
@@ -1054,7 +1054,9 @@ void ScriptScanner::LowerScriptSpan(LangSpan* span) {
 // Buffer ALWAYS has leading space and trailing space space space NUL
 bool ScriptScanner::GetOneScriptSpanLower(LangSpan* span) {
   bool ok = GetOneScriptSpan(span);
-  LowerScriptSpan(span);
+  if (ok) {
+    LowerScriptSpan(span);
+  }
   return ok;
 }