fdo#66081 - reduce the number of nested <mrow>'s in MathML

Change-Id: I768db4719119e53961c9cfa6a864daad7f1f7873
Reviewed-on: https://gerrit.libreoffice.org/4520
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>

1 files changed, 12 insertions, 4 deletions

diff --git a/starmath/source/parse.cxx b/starmath/source/parse.cxx
index cc35a6698775..cdb6865db623 100644
--- a/starmath/source/parse.cxx
+++ b/starmath/source/parse.cxx
@@ -1108,10 +1108,18 @@ void SmParser::Expression()
         RelationArray[n - 1] = lcl_popOrZero(m_aNodeStack);
     }
 
-    SmExpressionNode *pSNode = new SmExpressionNode(m_aCurToken);
-    pSNode->SetSubNodes(RelationArray);
-    pSNode->SetUseExtraSpaces(bUseExtraSpaces);
-    m_aNodeStack.push(pSNode);
+    if (n > 1)
+    {
+        SmExpressionNode *pSNode = new SmExpressionNode(m_aCurToken);
+        pSNode->SetSubNodes(RelationArray);
+        pSNode->SetUseExtraSpaces(bUseExtraSpaces);
+        m_aNodeStack.push(pSNode);
+    }
+    else
+    {
+        // This expression has only one node so just push this node.
+        m_aNodeStack.push(RelationArray[0]);
+    }
 }