From 28c10b0c9f4d4ebf1d9ac105241033eaf6fde228 Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <doxygen@gmail.com>
Date: Tue, 30 Jul 2019 17:02:40 +0200
Subject: issue 7068: "QGDict::hashAsciiKey: Invalid null key" error messages

---
 src/scanner.l | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/scanner.l b/src/scanner.l
index 5ecf261..13abcbb 100644
--- a/src/scanner.l
+++ b/src/scanner.l
@@ -2014,9 +2014,12 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
   					}
 <PHPUseAs>{ID}				{
   					  //printf("PHP: adding use as relation: %s->%s\n",yytext,aliasName.data());
-                                          Doxygen::namespaceAliasDict.insert(yytext,
-					       new QCString(removeRedundantWhiteSpace(
-						   substitute(aliasName,"\\","::"))));
+                                          if (!aliasName.isEmpty())
+                                          {
+                                            Doxygen::namespaceAliasDict.insert(yytext,
+					         new QCString(removeRedundantWhiteSpace(
+					  	   substitute(aliasName,"\\","::"))));
+                                          }
 					  aliasName.resize(0);
   					}
 <PHPUse,PHPUseAs>[,;]			{
-- 
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