From 979b00385f963a7433ee7ad87dba1102d8f63f3a Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <doxygen@gmail.com>
Date: Mon, 31 Dec 2018 20:25:57 +0100
Subject: Fixed range and added code comment

---
 src/dot.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/dot.cpp b/src/dot.cpp
index eb6c03c..07a1a43 100644
--- a/src/dot.cpp
+++ b/src/dot.cpp
@@ -396,8 +396,9 @@ static bool convertMapFile(FTextStream &t,const char *mapName,
       if (buf.left(5)=="<area")
       {
 	QCString replBuf = replaceRef(buf,relPath,urlOnly,context);
+        // strip id="..." from replBuf since the id's are not needed and not unique.
         int indexS = replBuf.find("id=\""), indexE;
-        if (indexS>=0 && (indexE=replBuf.find('"',indexS+4))!=-1)
+        if (indexS>0 && (indexE=replBuf.find('"',indexS+4))!=-1)
 	{
 	  t << replBuf.left(indexS-1) << replBuf.right(replBuf.length() - indexE - 1);
 	}
-- 
cgit v0.12