X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSMESH_I%2FSMESH_NoteBook.cxx;h=a482d86ed2db2260982111d8db8d182b7e34bea8;hb=95a58b5ecfaaf32f9c4a7d2689ab72f8f9331b68;hp=0168a96e7ef3db68b9eec1e9cc5ffefeeece906c;hpb=bd8f1aee7c78f7d2eb82bd4fec5e08c9e3d280ce;p=modules%2Fsmesh.git

diff --git a/src/SMESH_I/SMESH_NoteBook.cxx b/src/SMESH_I/SMESH_NoteBook.cxx
index 0168a96e7..a482d86ed 100644
--- a/src/SMESH_I/SMESH_NoteBook.cxx
+++ b/src/SMESH_I/SMESH_NoteBook.cxx
@@ -258,10 +258,12 @@ void SMESH_NoteBook::ReplaceVariables()
     // Get the entry of object storing "StringAttribute"
     TCollection_AsciiString & cmdStr = aCmd->GetString();
     TEntry2VarVecMap::iterator ent2varVec;
-    if (int pos = cmdStr.Location( SMESH::TVar::ObjPrefix(), 6, cmdStr.Length() ))
+    Standard_Integer fromIndex = 6;
+    Standard_Integer cmdLen = cmdStr.Length();
+    if ( int pos = (fromIndex <= cmdLen) ? cmdStr.Location( SMESH::TVar::ObjPrefix(), fromIndex, cmdLen ) : 0 )
     {
       TCollection_AsciiString varHolderEntry =
-        cmdStr.SubString( pos + strlen( SMESH::TVar::ObjPrefix() ), cmdStr.Length() );
+        cmdStr.SubString( pos + strlen( SMESH::TVar::ObjPrefix() ), cmdLen );
       ent2varVec = _entry2VarsMap.find( varHolderEntry );
       cmdStr.Split( pos - 1 );
     }