From 0a09ab02f8ddbb4e3837b8b2611a2cf110b7e6f6 Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <doxygen@gmail.com>
Date: Fri, 31 Jul 2020 13:15:34 +0200
Subject: issue #7881: More flexible and correct detection of direction of an
 argument (another fix)

---
 qtools/qcstring.cpp | 5 ++++-
 src/util.cpp        | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/qtools/qcstring.cpp b/qtools/qcstring.cpp
index 8169979..da7a46f 100644
--- a/qtools/qcstring.cpp
+++ b/qtools/qcstring.cpp
@@ -616,7 +616,10 @@ QCString substitute(const QCString &s,const QCString &src,const QCString &dst)
     if (dst) memcpy(r,dst,dstLen);
     r+=dstLen;
   }
-  qstrcpy(r,p);
+  if (r)
+  {
+    qstrcpy(r,p);
+  }
   //printf("substitute(%s,%s,%s)->%s\n",s,src,dst,result.data());
   return result;
 }
diff --git a/src/util.cpp b/src/util.cpp
index 13b3ca5..aa1acb4 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -8139,7 +8139,7 @@ QCString extractDirection(QCString &docs)
 {
   QRegExp re("\\[[ inout,]+\\]"); // [...]
   int l=0;
-  if (re.match(docs,0,&l)==0)
+  if (re.match(docs,0,&l)==0 && l>2)
   {
     // make dir the part inside [...] without separators
     QCString dir=substitute(substitute(docs.mid(1,l-2)," ",""),",","");
-- 
cgit v0.12