Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

45 files changed, 10081 insertions, 0 deletions

diff --git a/starmath/inc/ElementsDockingWindow.hxx b/starmath/inc/ElementsDockingWindow.hxx
new file mode 100644
index 000000000..5d6a0bd3d
--- /dev/null
+++ b/starmath/inc/ElementsDockingWindow.hxx
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sfx2/dockwin.hxx>
+#include <vcl/customweld.hxx>
+#include <vcl/weld.hxx>
+#include <unotools/resmgr.hxx>
+
+#include "node.hxx"
+#include "parsebase.hxx"
+
+#include <memory>
+#include <vector>
+
+class SmDocShell;
+class SvTreeListBox;
+struct ElementData;
+
+class SmElementsControl
+{
+    std::unique_ptr<AbstractSmParser> maParser;
+
+    SmDocShell*   mpDocShell;
+    SmFormat      maFormat;
+    TranslateId   msCurrentSetId;
+    sal_uInt16    m_nSmSyntaxVersion;
+
+    bool          mbVerticalMode;
+    std::vector<std::unique_ptr<ElementData>> maItemDatas;
+    std::unique_ptr<weld::IconView> mpIconView;
+
+    Link<OUString, void> maSelectHdlLink;
+
+    void addElement(const OUString& aElementVisual, const OUString& aElementSource, const OUString& aHelpText);
+    void addElements(const TranslateId& rCategory);
+
+    void build();
+
+    DECL_LINK(QueryTooltipHandler, const weld::TreeIter&, OUString);
+    DECL_LINK(ElementActivatedHandler, weld::IconView&, bool);
+
+    static OUString GetElementSource(const OUString& itemId);
+    static OUString GetElementHelpText(const OUString& itemId);
+
+public:
+
+    explicit SmElementsControl(std::unique_ptr<weld::IconView> pIconView);
+    ~SmElementsControl();
+
+    static const std::vector<TranslateId>& categories();
+    void setElementSetId(TranslateId pSetId);
+
+    void setVerticalMode(bool bVertical);
+
+    void setSmSyntaxVersion(sal_uInt16 nSmSyntaxVersion);
+
+    void SetSelectHdl(const Link<OUString, void>& rLink) { maSelectHdlLink = rLink; }
+
+    static Color GetTextColor();
+    static Color GetControlBackground();
+};
+
+class SmElementsDockingWindow final : public SfxDockingWindow
+{
+    std::unique_ptr<SmElementsControl> mxElementsControl;
+    std::unique_ptr<weld::ComboBox> mxElementListBox;
+
+    virtual void Resize() override;
+    SmViewShell* GetView();
+
+    DECL_LINK(SelectClickHandler, OUString, void);
+    DECL_LINK(ElementSelectedHandle, weld::ComboBox&, void);
+
+public:
+
+    SmElementsDockingWindow( SfxBindings* pBindings,
+                             SfxChildWindow* pChildWindow,
+                             vcl::Window* pParent );
+    virtual ~SmElementsDockingWindow() override;
+    virtual void dispose() override;
+
+    virtual void EndDocking( const tools::Rectangle& rReactangle, bool bFloatMode) override;
+    virtual void ToggleFloatingMode() override;
+    virtual void GetFocus() override;
+
+    void setSmSyntaxVersion(sal_uInt16 nSmSyntaxVersion);
+};
+
+class SmElementsDockingWindowWrapper final : public SfxChildWindow
+{
+    SFX_DECL_CHILDWINDOW_WITHID(SmElementsDockingWindowWrapper);
+
+    SmElementsDockingWindowWrapper( vcl::Window* pParentWindow,
+                                    sal_uInt16 nId,
+                                    SfxBindings* pBindings,
+                                    SfxChildWinInfo* pInfo );
+    virtual ~SmElementsDockingWindowWrapper() override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/action.hxx b/starmath/inc/action.hxx
new file mode 100644
index 000000000..aaec78549
--- /dev/null
+++ b/starmath/inc/action.hxx
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <svl/undo.hxx>
+#include "format.hxx"
+
+class SmDocShell;
+
+class SmFormatAction final : public SfxUndoAction
+{
+    SmDocShell* pDoc;
+    SmFormat aOldFormat;
+    SmFormat aNewFormat;
+
+public:
+    SmFormatAction(SmDocShell* pDocSh, const SmFormat& rOldFormat, const SmFormat& rNewFormat);
+
+    virtual void Undo() override;
+    virtual void Redo() override;
+    virtual void Repeat(SfxRepeatTarget& rDocSh) override;
+    virtual OUString GetComment() const override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/caret.hxx b/starmath/inc/caret.hxx
new file mode 100644
index 000000000..eff810792
--- /dev/null
+++ b/starmath/inc/caret.hxx
@@ -0,0 +1,424 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <sal/config.h>
+#include "node.hxx"
+
+/** Representation of caret position with an equation */
+struct SmCaretPos
+{
+    SmCaretPos(SmNode* selectedNode = nullptr, int iIndex = 0)
+        : pSelectedNode(selectedNode)
+        , nIndex(iIndex)
+    {
+        assert(nIndex >= 0);
+    }
+
+    /** Selected node */
+    SmNode* pSelectedNode;
+
+    /** Index (invariant: non-negative) within the selected node
+     *
+     * 0: Position in front of a node
+     * 1: Position after a node or after first char in SmTextNode
+     * n: Position after n char in SmTextNode
+     *
+     * Notice how there's special cases for SmTextNode.
+     */
+    //TODO: Special cases for SmBlankNode is needed
+    //TODO: Consider forgetting about the todo above... As it's really unpleasant.
+    int nIndex;
+
+    /** True, if this is a valid caret position */
+    bool IsValid() const { return pSelectedNode != nullptr; }
+    bool operator==(const SmCaretPos& pos) const
+    {
+        return pos.pSelectedNode == pSelectedNode && nIndex == pos.nIndex;
+    }
+    /** Get the caret position after pNode, regardless of pNode
+     *
+     * Gets the caret position following pNode, this is SmCaretPos(pNode, 1).
+     * Unless pNode is an instance of SmTextNode, then the index is the text length.
+     */
+    static SmCaretPos GetPosAfter(SmNode* pNode)
+    {
+        if (pNode && pNode->GetType() == SmNodeType::Text)
+            return SmCaretPos(pNode, static_cast<SmTextNode*>(pNode)->GetText().getLength());
+        return SmCaretPos(pNode, 1);
+    }
+};
+
+/** A line that represents a caret */
+class SmCaretLine
+{
+public:
+    SmCaretLine(tools::Long left = 0, tools::Long top = 0, tools::Long height = 0)
+    {
+        _top = top;
+        _left = left;
+        _height = height;
+    }
+    tools::Long GetTop() const { return _top; }
+    tools::Long GetLeft() const { return _left; }
+    tools::Long GetHeight() const { return _height; }
+    tools::Long SquaredDistanceX(const SmCaretLine& line) const
+    {
+        return (GetLeft() - line.GetLeft()) * (GetLeft() - line.GetLeft());
+    }
+    tools::Long SquaredDistanceX(const Point& pos) const
+    {
+        return (GetLeft() - pos.X()) * (GetLeft() - pos.X());
+    }
+    tools::Long SquaredDistanceY(const SmCaretLine& line) const
+    {
+        tools::Long d = GetTop() - line.GetTop();
+        if (d < 0)
+            d = (d * -1) - GetHeight();
+        else
+            d = d - line.GetHeight();
+        if (d < 0)
+            return 0;
+        return d * d;
+    }
+    tools::Long SquaredDistanceY(const Point& pos) const
+    {
+        tools::Long d = GetTop() - pos.Y();
+        if (d < 0)
+            d = (d * -1) - GetHeight();
+        if (d < 0)
+            return 0;
+        return d * d;
+    }
+
+private:
+    tools::Long _top;
+    tools::Long _left;
+    tools::Long _height;
+};
+
+// SmCaretPosGraph
+
+/** An entry in SmCaretPosGraph */
+struct SmCaretPosGraphEntry
+{
+    SmCaretPosGraphEntry(SmCaretPos pos, SmCaretPosGraphEntry* left, SmCaretPosGraphEntry* right)
+        : CaretPos{ pos }
+        , Left{ left }
+        , Right{ right }
+    {
+    }
+    /** Caret position */
+    const SmCaretPos CaretPos;
+    /** Entry to the left visually */
+    SmCaretPosGraphEntry* Left;
+    /** Entry to the right visually */
+    SmCaretPosGraphEntry* Right;
+    void SetRight(SmCaretPosGraphEntry* right) { Right = right; }
+    void SetLeft(SmCaretPosGraphEntry* left) { Left = left; }
+};
+
+/** A graph over all caret positions
+ * @remarks Graphs can only grow, entries cannot be removed!
+ */
+class SmCaretPosGraph
+{
+public:
+    SmCaretPosGraph();
+
+    ~SmCaretPosGraph();
+
+    /** Add a caret position
+     *  @remarks If left is NULL, they will point back to the entry.
+     */
+    SmCaretPosGraphEntry* Add(SmCaretPos pos, SmCaretPosGraphEntry* left = nullptr);
+
+    std::vector<std::unique_ptr<SmCaretPosGraphEntry>>::iterator begin()
+    {
+        return mvEntries.begin();
+    }
+
+    std::vector<std::unique_ptr<SmCaretPosGraphEntry>>::iterator end() { return mvEntries.end(); }
+
+private:
+    std::vector<std::unique_ptr<SmCaretPosGraphEntry>> mvEntries;
+};
+
+/** \page visual_formula_editing Visual Formula Editing
+ * A visual formula editor allows users to easily edit formulas without having to learn and
+ * use complicated commands. A visual formula editor is a WYSIWYG editor. For OpenOffice Math
+ * this essentially means that you can click on the formula image, to get a caret, which you
+ * can move with arrow keys, and use to modify the formula by entering text, clicking buttons
+ * or using shortcuts.
+ *
+ * \subsection formula_trees Formula Trees
+ * A formula in OpenOffice Math is a tree of nodes, take for instance the formula
+ * "A + {B cdot C} over D", it looks like this
+ * \f$ \mbox{A} + \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D}} \f$. The tree for this formula
+ * looks like this:
+ *
+ * \dot
+ * digraph {
+ * labelloc = "t";
+ * label= "Equation: \"A  + {B  cdot C} over D\"";
+ * size = "9,9";
+ * n0 [label="SmTableNode (1)"];
+ * n0 -> n1 [label="0"];
+ * n1 [label="SmLineNode (2)"];
+ * n1 -> n2 [label="0"];
+ * n2 [label="SmExpressionNode (3)"];
+ * n2 -> n3 [label="0"];
+ * n3 [label="SmBinHorNode (4)"];
+ * n3 -> n4 [label="0"];
+ * n4 [label="SmTextNode: A (5)"];
+ * n3 -> n5 [label="1"];
+ * n5 [label="SmMathSymbolNode: + (6)"];
+ * n3 -> n6 [label="2"];
+ * n6 [label="SmBinVerNode (7)"];
+ * n6 -> n7 [label="0"];
+ * n7 [label="SmExpressionNode (8)"];
+ * n7 -> n8 [label="0"];
+ * n8 [label="SmBinHorNode (9)"];
+ * n8 -> n9 [label="0"];
+ * n9 [label="SmTextNode: B (10)"];
+ * n8 -> n10 [label="1"];
+ * n10 [label="SmMathSymbolNode: &#183; (11)"];
+ * n8 -> n11 [label="2"];
+ * n11 [label="SmTextNode: C (12)"];
+ * n6 -> n12 [label="1"];
+ * n12 [label="SmRectangleNode (13)"];
+ * n6 -> n13 [label="2"];
+ * n13 [label="SmTextNode: D (14)"];
+ * }
+ * \enddot
+ *
+ * The vertices are nodes, their label says what kind of node and the number in parentheses is
+ *  the identifier of the node (In practices a pointer is used instead of the id). The direction
+ *  of the edges tells which node is parent and which is child. The label of the edges are the
+ *  child node index number, given to SmNode::GetSubNode() of the parent to get the child node.
+ *
+ *
+ * \subsection visual_lines Visual Lines
+ *
+ * Inorder to do caret movement in visual lines, we need a definition of caret position and
+ * visual line. In a tree such as the above there are three visual lines. There's the outer most
+ * line, with entries such as
+ * \f$\mbox{A}\f$, \f$ + \f$ and \f$ \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D}} \f$. Then there's
+ *  the numerator line of the fraction it has entries \f$ \mbox{B} \f$, \f$ \cdot \f$ and \f$ \mbox{C} \f$.
+ *  And last by not least there's the denominator line of the fraction it's only entry is \f$ \mbox{D} \f$.
+ *
+ * For visual editing it should be possible to place a caret on both sides of any line entry,
+ * consider a line entry a character or construction that in a line is treated as a character.
+ *  Imagine the caret is placed to the right of the plus sign (id: 6), now if user presses
+ * backspace this should delete the plus sign (id: 6), and if the user presses delete this
+ * should delete the entire fraction (id: 7). This is because the caret is in the outer most
+ * line where the fraction is considered a line entry.
+ *
+ * However, inorder to prevent users from accidentally deleting large subtrees, just because
+ * they logically placed there caret a in the wrong line, require that complex constructions
+ * such as a fraction is selected before it is deleted. Thus in this case it wouldn't be
+ * deleted, but only selected and then deleted if the user hit delete again. Anyway, this is
+ * slightly off topic for now.
+ *
+ * Important about visual lines is that they don't always have an SmExpressionNode as root
+ * and the entries in a visual line is all the nodes of a subtree ordered left to right that
+ *  isn't either an SmExpressionNode, SmBinHorNode or SmUnHorNode.
+ *
+ *
+ * \subsection caret_positions Caret Positions
+ *
+ * A caret position in OpenOffice Math is represented by an instance of SmCaretPos.
+ * That is a caret position is a node and an index related to this node. For most nodes the
+ * index 0, means caret is in front of this node, the index 1 means caret is after this node.
+ * For SmTextNode the index is the caret position after the specified number of characters,
+ * imagine an SmTextNode with the number 1337. The index 3 in such SmTextNode would mean a
+ * caret placed right before 7, e.g. "133|7".
+ *
+ * For SmExpressionNode, SmBinHorNode and SmUnHorNode the only legal index is 0, which means
+ * in front of the node. Actually the index 0 may only because for the first caret position
+ * in a visual line. From the example above, consider the following subtree that constitutes
+ * a visual line:
+ *
+ * \dot
+ * digraph {
+ * labelloc = "t";
+ * label= "Subtree that constitutes a visual line";
+ * size = "7,5";
+ * n7 [label="SmExpressionNode (8)"];
+ * n7 -> n8 [label="0"];
+ * n8 [label="SmBinHorNode (9)"];
+ * n8 -> n9 [label="0"];
+ * n9 [label="SmTextNode: B (10)"];
+ * n8 -> n10 [label="1"];
+ * n10 [label="SmMathSymbolNode: &#183; (11)"];
+ * n8 -> n11 [label="2"];
+ * n11 [label="SmTextNode: C (12)"];
+ * }
+ * \enddot
+ * Here the caret positions are:
+ *
+ * <TABLE>
+ * <TR><TD><B>Caret position:</B></TD><TD><B>Example:</B></TD>
+ * </TR><TR>
+ *     <TD>{id: 8, index: 0}</TD>
+ *     <TD>\f$ \mid \mbox{C} \cdot \mbox{C} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 10, index: 1}</TD>
+ *     <TD>\f$ \mbox{C} \mid \cdot \mbox{C} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 11, index: 1}</TD>
+ *     <TD>\f$ \mbox{C} \cdot \mid \mbox{C} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 12, index: 1}</TD>
+ *     <TD>\f$ \mbox{C} \cdot \mbox{C} \mid \f$</TD>
+ * </TR><TR>
+ * </TABLE>
+ *
+ * Where \f$ \mid \f$ is used to denote caret position.
+ *
+ * With these exceptions included in the definition the id and index: {id: 11, index: 0} does
+ * \b not constitute a caret position in the given context. Note the method
+ * SmCaretPos::IsValid() does not check if this invariant holds true, but code in SmCaret,
+ * SmSetSelectionVisitor and other places depends on this invariant to hold.
+ *
+ *
+ * \subsection caret_movement Caret Movement
+ *
+ * As the placement of caret positions depends very much on the context within which a node
+ * appears it is not trivial to find all caret positions and determine which follows which.
+ * In OpenOffice Math this is done by the SmCaretPosGraphBuildingVisitor. This visitor builds
+ * graph (an instance of SmCaretPosGraph) over the caret positions. For details on how this
+ * graph is build, and how new methods should be implemented see SmCaretPosGraphBuildingVisitor.
+ *
+ * The result of the SmCaretPosGraphBuildingVisitor is a graph over the caret positions in a
+ * formula, represented by an instance of SmCaretPosGraph. Each entry (instances of SmCaretPosGraphEntry)
+ * has a pointer to the entry to the left and right of itself. This way we can easily find
+ * the caret position to a right or left of a given caret position. Note each caret position
+ * only appears once in this graph.
+ *
+ * When searching for a caret position after a left click on the formula this map is also used.
+ * We simply iterate over all entries, uses the SmCaretPos2LineVisitor to find a line for each
+ * caret position. Then the distance from the click to the line is computed and we choose the
+ * caret position closest to the click.
+ *
+ * For up and down movement, we also iterator over all caret positions and use SmCaretPos2LineVisitor
+ * to find a line for each caret position. Then we compute the distance from the current
+ * caret position to every other caret position and chooses the one closest that is either
+ * above or below the current caret position, depending on whether we're doing up or down movement.
+ *
+ * This result of this approach to caret movement is that we have logically predictable
+ * movement for left and right, whilst leftclick, up and down movement depends on the sizes
+ * and placement of all node and may be less logically predictable. This solution also means
+ * that we only have one complex visitor generating the graph, imagine the nightmare if we
+ * had a visitor for movement in each direction.
+ *
+ * Making up and down movement independent of node sizes and placement wouldn't necessarily
+ * be a good thing either. Consider the formula \f$ \frac{1+2+3+4+5}{6} \f$, if the caret is
+ * placed as displayed here: \f$ \frac{1+2+3+4+5}{6 \mid} \f$, up movement should move to right
+ * after "3": \f$ \frac{1+2+3|+4+5}{6} \f$. However, such a move depends on the sizes and placement
+ * of all nodes in the fraction.
+ *
+ *
+ * \subsubsection caretpos_graph_example Example of Caret Position Graph
+ *
+ * If we consider the formula
+ * \f$ \mbox{A} + \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D}} \f$ from \ref formula_trees.
+ * It has the following caret positions:
+ *
+ * <TABLE>
+ * <TR>
+ *     <TD><B>Caret position:</B></TD>
+ *     <TD><B>Example:</B></TD>
+ * </TR><TR>
+ *     <TD>{id: 3, index: 0}</TD>
+ *     <TD>\f$ \mid\mbox{A} + \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 5, index: 1}</TD>
+ *     <TD>\f$ \mbox{A}\mid + \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 6, index: 1}</TD>
+ *     <TD>\f$ \mbox{A} + \mid \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 8, index: 0}</TD>
+ *     <TD>\f$ \mbox{A} + \frac{ \mid \mbox{B} \cdot \mbox{C}}{\mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 10, index: 1}</TD>
+ *     <TD>\f$ \mbox{A} + \frac{\mbox{B} \mid \cdot \mbox{C}}{\mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 11, index: 1}</TD>
+ *     <TD>\f$ \mbox{A} + \frac{\mbox{B} \cdot \mid \mbox{C}}{\mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 12, index: 1}</TD>
+ *     <TD>\f$ \mbox{A} + \frac{\mbox{B} \cdot \mbox{C} \mid}{\mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 14, index: 0}</TD>
+ *     <TD>\f$ \mbox{A} + \frac{\mbox{B} \cdot \mbox{C}}{\mid \mbox{D}} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 14, index: 1}</TD>
+ *     <TD>\f$ \mbox{A} + \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D} \mid} \f$</TD>
+ * </TR><TR>
+ *     <TD>{id: 7, index: 1}</TD>
+ *     <TD>\f$ \mbox{A} + \frac{\mbox{B} \cdot \mbox{C}}{\mbox{D}} \mid \f$</TD>
+ * </TR>
+ * </TABLE>
+ *
+ * Below is a directed graph over the caret positions and how you can move between them.
+ * \dot
+ * digraph {
+ *     labelloc = "t";
+ *     label= "Caret Position Graph";
+ *     size = "4,6";
+ *     p0 [label = "{id: 3, index: 0}"];
+ *     p0 -> p1 [fontsize = 10.0, label = "right"];
+ *     p1 [label = "{id: 5, index: 1}"];
+ *     p1 -> p0 [fontsize = 10.0, label = "left"];
+ *     p1 -> p2 [fontsize = 10.0, label = "right"];
+ *     p2 [label = "{id: 6, index: 1}"];
+ *     p2 -> p1 [fontsize = 10.0, label = "left"];
+ *     p2 -> p3 [fontsize = 10.0, label = "right"];
+ *     p3 [label = "{id: 8, index: 0}"];
+ *     p3 -> p2 [fontsize = 10.0, label = "left"];
+ *     p3 -> p4 [fontsize = 10.0, label = "right"];
+ *     p4 [label = "{id: 10, index: 1}"];
+ *     p4 -> p3 [fontsize = 10.0, label = "left"];
+ *     p4 -> p5 [fontsize = 10.0, label = "right"];
+ *     p5 [label = "{id: 11, index: 1}"];
+ *     p5 -> p4 [fontsize = 10.0, label = "left"];
+ *     p5 -> p6 [fontsize = 10.0, label = "right"];
+ *     p6 [label = "{id: 12, index: 1}"];
+ *     p6 -> p5 [fontsize = 10.0, label = "left"];
+ *     p6 -> p9 [fontsize = 10.0, label = "right"];
+ *     p7 [label = "{id: 14, index: 0}"];
+ *     p7 -> p2 [fontsize = 10.0, label = "left"];
+ *     p7 -> p8 [fontsize = 10.0, label = "right"];
+ *     p8 [label = "{id: 14, index: 1}"];
+ *     p8 -> p7 [fontsize = 10.0, label = "left"];
+ *     p8 -> p9 [fontsize = 10.0, label = "right"];
+ *     p9 [label = "{id: 7, index: 1}"];
+ *     p9 -> p6 [fontsize = 10.0, label = "left"];
+ * }
+ * \enddot
+ */
+
+/* TODO: Write documentation about the following keywords:
+ *
+ * Visual Selections:
+ *  - Show images
+ *  - Talk about how the visitor does this
+ *
+ * Modifying a Visual Line:
+ *  - Find top most non-compo of the line (e.g. The subtree that constitutes a line)
+ *  - Make the line into a list
+ *  - Edit the list, add/remove/modify nodes
+ *  - Parse the list back into a subtree
+ *  - Insert the new subtree where the old was taken
+ */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/cfgitem.hxx b/starmath/inc/cfgitem.hxx
new file mode 100644
index 000000000..16c65fd7f
--- /dev/null
+++ b/starmath/inc/cfgitem.hxx
@@ -0,0 +1,205 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include "utility.hxx"
+
+#include <string_view>
+#include <rtl/ustring.hxx>
+#include <svl/SfxBroadcaster.hxx>
+#include <unotools/configitem.hxx>
+
+#include "types.hxx"
+
+namespace com::sun::star::uno
+{
+template <class E> class Sequence;
+}
+
+class SmSym;
+class SmSymbolManager;
+class SmFormat;
+namespace vcl
+{
+class Font;
+}
+struct SmCfgOther;
+class SfxItemSet;
+
+struct SmFontFormat
+{
+    OUString aName;
+    sal_Int16 nCharSet;
+    sal_Int16 nFamily;
+    sal_Int16 nPitch;
+    sal_Int16 nWeight;
+    sal_Int16 nItalic;
+
+    SmFontFormat();
+    explicit SmFontFormat(const vcl::Font& rFont);
+
+    vcl::Font GetFont() const;
+    bool operator==(const SmFontFormat& rFntFmt) const;
+};
+
+struct SmFntFmtListEntry
+{
+    OUString aId;
+    SmFontFormat aFntFmt;
+
+    SmFntFmtListEntry(const OUString& rId, const SmFontFormat& rFntFmt);
+};
+
+class SmFontFormatList
+{
+    std::vector<SmFntFmtListEntry> aEntries;
+    bool bModified;
+
+    SmFontFormatList(const SmFontFormatList&) = delete;
+    SmFontFormatList& operator=(const SmFontFormatList&) = delete;
+
+public:
+    SmFontFormatList();
+
+    void Clear();
+    void AddFontFormat(const OUString& rFntFmtId, const SmFontFormat& rFntFmt);
+    void RemoveFontFormat(std::u16string_view rFntFmtId);
+
+    const SmFontFormat* GetFontFormat(std::u16string_view rFntFmtId) const;
+    const SmFontFormat* GetFontFormat(size_t nPos) const;
+    OUString GetFontFormatId(const SmFontFormat& rFntFmt) const;
+    OUString GetFontFormatId(const SmFontFormat& rFntFmt, bool bAdd);
+    OUString GetFontFormatId(size_t nPos) const;
+    OUString GetNewFontFormatId() const;
+    size_t GetCount() const { return aEntries.size(); }
+
+    bool IsModified() const { return bModified; }
+    void SetModified(bool bVal) { bModified = bVal; }
+};
+
+class SmMathConfig final : public utl::ConfigItem, public SfxBroadcaster
+{
+    std::unique_ptr<SmFormat> pFormat;
+    std::unique_ptr<SmCfgOther> pOther;
+    std::unique_ptr<SmFontFormatList> pFontFormatList;
+    std::unique_ptr<SmSymbolManager> pSymbolMgr;
+    bool bIsOtherModified;
+    bool bIsFormatModified;
+    SmFontPickList vFontPickList[7];
+    sal_Int32 m_nCommitLock = 0;
+
+    SmMathConfig(const SmMathConfig&) = delete;
+    SmMathConfig& operator=(const SmMathConfig&) = delete;
+
+    void StripFontFormatList(const std::vector<SmSym>& rSymbols);
+
+    void Save();
+
+    void ReadSymbol(SmSym& rSymbol, const OUString& rSymbolName,
+                    std::u16string_view rBaseNode) const;
+    void ReadFontFormat(SmFontFormat& rFontFormat, std::u16string_view rSymbolName,
+                        std::u16string_view rBaseNode) const;
+
+    bool SetOtherIfNotEqual(bool& rbItem, bool bNewVal);
+
+    void LoadOther();
+    void SaveOther();
+    void LoadFormat();
+    void SaveFormat();
+    void LoadFontFormatList();
+    void SaveFontFormatList();
+
+    void SetOtherModified(bool bVal);
+    bool IsOtherModified() const { return bIsOtherModified; }
+    void SetFormatModified(bool bVal);
+    bool IsFormatModified() const { return bIsFormatModified; }
+
+    SmFontFormatList& GetFontFormatList();
+    const SmFontFormatList& GetFontFormatList() const
+    {
+        return const_cast<SmMathConfig*>(this)->GetFontFormatList();
+    }
+
+    virtual void ImplCommit() override;
+    void LockCommit() { ++m_nCommitLock; }
+    void UnlockCommit();
+    // Used to avoid tens of atomic commits in e.g. ItemSetToConfig that calls individual setters
+    friend struct CommitLocker;
+    struct CommitLocker
+    {
+        SmMathConfig& m_rConfig;
+        CommitLocker(SmMathConfig& rConfig)
+            : m_rConfig(rConfig)
+        {
+            m_rConfig.LockCommit();
+        }
+        ~CommitLocker() { m_rConfig.UnlockCommit(); }
+    };
+
+    void Clear();
+
+public:
+    SmMathConfig();
+    virtual ~SmMathConfig() override;
+
+    // utl::ConfigItem
+    virtual void Notify(const css::uno::Sequence<OUString>& rPropertyNames) override;
+
+    SmSymbolManager& GetSymbolManager();
+    void GetSymbols(std::vector<SmSym>& rSymbols) const;
+    void SetSymbols(const std::vector<SmSym>& rNewSymbols);
+
+    const SmFormat& GetStandardFormat() const;
+    void SetStandardFormat(const SmFormat& rFormat, bool bSaveFontFormatList = false);
+
+    bool IsPrintTitle() const;
+    void SetPrintTitle(bool bVal);
+    bool IsPrintFormulaText() const;
+    void SetPrintFormulaText(bool bVal);
+    bool IsPrintFrame() const;
+    void SetPrintFrame(bool bVal);
+    SmPrintSize GetPrintSize() const;
+    void SetPrintSize(SmPrintSize eSize);
+    sal_uInt16 GetPrintZoomFactor() const;
+    void SetPrintZoomFactor(sal_uInt16 nVal);
+    sal_uInt16 GetSmEditWindowZoomFactor() const;
+    void SetSmEditWindowZoomFactor(sal_uInt16 nVal);
+
+    bool IsSaveOnlyUsedSymbols() const;
+    void SetSaveOnlyUsedSymbols(bool bVal);
+    bool IsAutoCloseBrackets() const;
+    void SetAutoCloseBrackets(bool bVal);
+    bool IsIgnoreSpacesRight() const;
+    void SetIgnoreSpacesRight(bool bVal);
+    bool IsAutoRedraw() const;
+    void SetAutoRedraw(bool bVal);
+    bool IsShowFormulaCursor() const;
+    void SetShowFormulaCursor(bool bVal);
+
+    sal_uInt16 GetDefaultSmSyntaxVersion() const;
+    void SetDefaultSmSyntaxVersion(sal_uInt16 nVal);
+
+    SmFontPickList& GetFontPickList(sal_uInt16 nIdent) { return vFontPickList[nIdent]; }
+
+    void ItemSetToConfig(const SfxItemSet& rSet);
+    void ConfigToItemSet(SfxItemSet& rSet) const;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/cursor.hxx b/starmath/inc/cursor.hxx
new file mode 100644
index 000000000..5886ffaf2
--- /dev/null
+++ b/starmath/inc/cursor.hxx
@@ -0,0 +1,427 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "caret.hxx"
+
+#include <list>
+
+/** Factor to multiple the squared horizontal distance with
+ * Used for Up and Down movement.
+ */
+#define HORIZONTICAL_DISTANCE_FACTOR 10
+
+/** Enum of direction for movement */
+enum SmMovementDirection
+{
+    MoveUp,
+    MoveDown,
+    MoveLeft,
+    MoveRight
+};
+
+/** Enum of elements that can inserted into a formula */
+enum SmFormulaElement
+{
+    BlankElement,
+    FactorialElement,
+    PlusElement,
+    MinusElement,
+    CDotElement,
+    EqualElement,
+    LessThanElement,
+    GreaterThanElement,
+    PercentElement
+};
+
+/** Bracket types that can be inserted */
+enum class SmBracketType
+{
+    /** Round brackets, left command "(" */
+    Round,
+    /**Square brackets, left command "[" */
+    Square,
+    /** Curly brackets, left command "lbrace" */
+    Curly,
+};
+
+/** A list of nodes */
+typedef std::list<SmNode*> SmNodeList;
+
+typedef std::list<std::unique_ptr<SmNode>> SmClipboard;
+
+class SmDocShell;
+
+/** Formula cursor
+ *
+ * This class is used to represent a cursor in a formula, which can be used to manipulate
+ * a formula programmatically.
+ * @remarks This class is a very intimate friend of SmDocShell.
+ */
+class SmCursor
+{
+public:
+    SmCursor(SmNode* tree, SmDocShell* pShell)
+        : mpAnchor(nullptr)
+        , mpPosition(nullptr)
+        , mpTree(tree)
+        , mpDocShell(pShell)
+        , mnEditSections(0)
+        , mbIsEnabledSetModifiedSmDocShell(false)
+    {
+        //Build graph
+        BuildGraph();
+    }
+
+    /** Get position */
+    const SmCaretPos& GetPosition() const { return mpPosition->CaretPos; }
+
+    /** True, if the cursor has a selection */
+    bool HasSelection() const { return mpAnchor != mpPosition; }
+
+    /** Move the position of this cursor */
+    void Move(OutputDevice* pDev, SmMovementDirection direction, bool bMoveAnchor = true);
+
+    /** Move to the caret position closest to a given point */
+    void MoveTo(OutputDevice* pDev, const Point& pos, bool bMoveAnchor);
+
+    /** Delete the current selection or do nothing */
+    void Delete();
+
+    /** Delete selection, previous element or merge lines
+     *
+     * This method implements the behaviour of backspace.
+     */
+    void DeletePrev(OutputDevice* pDev);
+
+    /** Insert text at the current position */
+    void InsertText(const OUString& aString);
+
+    /** Insert an element into the formula */
+    void InsertElement(SmFormulaElement element);
+
+    /** Insert command text translated into line entries at position
+     *
+     * Note: This method uses the parser to translate a command text into a
+     * tree, then it copies line entries from this tree into the current tree.
+     * Will not work for commands such as newline or ##, if position is in a matrix.
+     * This will work for stuff like "A intersection B". But stuff spanning multiple lines
+     * or dependent on the context which position is placed in will not work!
+     */
+    void InsertCommandText(const OUString& aCommandText);
+
+    /** Insert a special node created from aString
+     *
+     * Used for handling insert request from the "catalog" dialog.
+     * The provided string should be formatted as the desired command: %phi
+     * Note: this method ONLY supports commands defined in Math.xcu
+     *
+     * For more complex expressions use InsertCommandText, this method doesn't
+     * use SmParser, this means that it's faster, but not as strong.
+     */
+    void InsertSpecial(std::u16string_view aString);
+
+    /** Create sub-/super script
+     *
+     * If there's a selection, it will be move into the appropriate sub-/super scription
+     * of the node in front of it. If there's no node in front of position (or the selection),
+     * a sub-/super scription of a new SmPlaceNode will be made.
+     *
+     * If there's is an existing subscription of the node, the caret will be moved into it,
+     * and any selection will replace it.
+     */
+    void InsertSubSup(SmSubSup eSubSup);
+
+    /** Insert a new row or newline
+     *
+     * Inserts a new row if position is in a matrix or stack command.
+     * Otherwise a newline is inserted if we're in a toplevel line.
+     *
+     * @returns True, if a new row/line could be inserted.
+     *
+     * @remarks If the caret is placed in a subline of a command that doesn't support
+     *          this operator the method returns FALSE, and doesn't do anything.
+     */
+    bool InsertRow();
+
+    /** Insert a fraction, use selection as numerator */
+    void InsertFraction();
+
+    /** Create brackets around current selection, or new SmPlaceNode */
+    void InsertBrackets(SmBracketType eBracketType);
+
+    /** Copy the current selection */
+    void Copy();
+    /** Cut the current selection */
+    void Cut()
+    {
+        Copy();
+        Delete();
+    }
+    /** Paste the clipboard */
+    void Paste();
+
+    /** Returns true if more than one node is selected
+     *
+     * This method is used for implementing backspace and delete.
+     * If one of these causes a complex selection, e.g. a node with
+     * subnodes or similar, this should not be deleted immediately.
+     */
+    bool HasComplexSelection();
+
+    /** Finds the topmost node in a visual line
+     *
+     * If MoveUpIfSelected is true, this will move up to the parent line
+     * if the parent of the current line is selected.
+     */
+    static SmNode* FindTopMostNodeInLine(SmNode* pSNode, bool MoveUpIfSelected = false);
+
+    /** Draw the caret */
+    void Draw(OutputDevice& pDev, Point Offset, bool isCaretVisible);
+
+    bool IsAtTailOfBracket(SmBracketType eBracketType) const;
+
+private:
+    friend class SmDocShell;
+
+    SmCaretPosGraphEntry *mpAnchor, *mpPosition;
+    /** Formula tree */
+    SmNode* mpTree;
+    /** Owner of the formula tree */
+    SmDocShell* mpDocShell;
+    /** Graph over caret position in the current tree */
+    std::unique_ptr<SmCaretPosGraph> mpGraph;
+    /** Clipboard holder */
+    SmClipboard maClipboard;
+
+    /** Returns a node that is selected, if any could be found */
+    SmNode* FindSelectedNode(SmNode* pNode);
+
+    /** Is this one of the nodes used to compose a line
+     *
+     * These are SmExpression, SmBinHorNode, SmUnHorNode etc.
+     */
+    static bool IsLineCompositionNode(SmNode const* pNode);
+
+    /** Count number of selected nodes, excluding line composition nodes
+     *
+     * Note this function doesn't count line composition nodes and it
+     * does count all subnodes as well as the owner nodes.
+     *
+     * Used by SmCursor::HasComplexSelection()
+     */
+    int CountSelectedNodes(SmNode* pNode);
+
+    /** Convert a visual line to a list
+     *
+     * Note this method will delete all the nodes that will no longer be needed.
+     * that includes pLine!
+     * This method also deletes SmErrorNode's as they're just meta info in the line.
+     */
+    static void LineToList(SmStructureNode* pLine, SmNodeList& rList);
+
+    /** Auxiliary function for calling LineToList on a node
+     *
+     * This method sets pNode = NULL and remove it from its parent.
+     * (Assuming it has a parent, and is a child of it).
+     */
+    static void NodeToList(SmNode*& rpNode, SmNodeList& rList)
+    {
+        //Remove from parent and NULL rpNode
+        SmNode* pNode = rpNode;
+        if (rpNode && rpNode->GetParent())
+        { //Don't remove this, correctness relies on it
+            int index = rpNode->GetParent()->IndexOfSubNode(rpNode);
+            assert(index >= 0);
+            rpNode->GetParent()->SetSubNode(index, nullptr);
+        }
+        rpNode = nullptr;
+        //Create line from node
+        if (pNode && IsLineCompositionNode(pNode))
+        {
+            LineToList(static_cast<SmStructureNode*>(pNode), rList);
+            return;
+        }
+        if (pNode)
+            rList.push_front(pNode);
+    }
+
+    /** Clone a visual line to a clipboard
+     *
+     * ... but the selected part only.
+     * Doesn't clone SmErrorNodes, which are ignored as they are context dependent metadata.
+     */
+    static void CloneLineToClipboard(SmStructureNode* pLine, SmClipboard* pClipboard);
+
+    /** Build pGraph over caret positions */
+    void BuildGraph();
+
+    /** Insert new nodes in the tree after position */
+    void InsertNodes(std::unique_ptr<SmNodeList> pNewNodes);
+
+    /** tries to set position to a specific SmCaretPos
+     *
+     * @returns false on failure to find the position in pGraph.
+     */
+    bool SetCaretPosition(SmCaretPos pos);
+
+    /** Set selected on nodes of the tree */
+    void AnnotateSelection();
+
+    /** Clone list of nodes in a clipboard (creates a deep clone) */
+    static std::unique_ptr<SmNodeList> CloneList(SmClipboard& rClipboard);
+
+    /** Find an iterator pointing to the node in pLineList following rCaretPos
+     *
+     * If rCaretPos.pSelectedNode cannot be found it is assumed that it's in front of pLineList,
+     * thus not an element in pLineList. In this case this method returns an iterator to the
+     * first element in pLineList.
+     *
+     * If the current position is inside an SmTextNode, this node will be split in two, for this
+     * reason you should beaware that iterators to elements in pLineList may be invalidated, and
+     * that you should call PatchLineList() with this iterator if no action is taken.
+     */
+    static SmNodeList::iterator FindPositionInLineList(SmNodeList* pLineList,
+                                                       const SmCaretPos& rCaretPos);
+
+    /** Patch a line list after modification, merge SmTextNode, remove SmPlaceNode etc.
+     *
+     * @param pLineList The line list to patch
+     * @param aIter     Iterator pointing to the element that needs to be patched with its previous.
+     *
+     * When the list is patched text nodes before and after aIter will be merged.
+     * If there's an, in the context, inappropriate SmPlaceNode before or after aIter it will also be
+     * removed.
+     *
+     * @returns A caret position equivalent to one selecting the node before aIter, the method returns
+     *          an invalid SmCaretPos to indicate placement in front of the line.
+     */
+    static SmCaretPos PatchLineList(SmNodeList* pLineList, SmNodeList::iterator aIter);
+
+    /** Take selected nodes from a list
+     *
+     * Puts the selected nodes into pSelectedNodes, or if pSelectedNodes is NULL deletes
+     * the selected nodes.
+     * Note: If there's a selection inside an SmTextNode this node will be split, and it
+     * will not be merged when the selection have been taken. Use PatchLineList on the
+     * iterator returns to fix this.
+     *
+     * @returns An iterator pointing to the element following the selection taken.
+     */
+    static SmNodeList::iterator TakeSelectedNodesFromList(SmNodeList* pLineList,
+                                                          SmNodeList* pSelectedNodes = nullptr);
+
+    /** Create an instance of SmMathSymbolNode usable for brackets */
+    static SmNode* CreateBracket(SmBracketType eBracketType, bool bIsLeft);
+
+    /** The number of times BeginEdit have been called
+     * Used to allow nesting of BeginEdit() and EndEdit() sections
+     */
+    int mnEditSections;
+    /** Holds data for BeginEdit() and EndEdit() */
+    bool mbIsEnabledSetModifiedSmDocShell;
+    /** Begin edit section where the tree will be modified */
+    void BeginEdit();
+    /** End edit section where the tree will be modified */
+    void EndEdit();
+    /** Finish editing
+     *
+     * Finishes editing by parsing pLineList and inserting back into pParent at nParentIndex.
+     * This method also rebuilds the graph, annotates the selection, sets caret position and
+     * Calls EndEdit.
+     *
+     * @remarks Please note that this method will delete pLineList, as the elements are taken.
+     *
+     * @param pLineList     List the constitutes the edited line.
+     * @param pParent       Parent to which the line should be inserted.
+     * @param nParentIndex  Index in parent where the line should be inserted.
+     * @param PosAfterEdit  Caret position to look for after rebuilding graph.
+     * @param pStartLine    Line to take first position in, if PosAfterEdit cannot be found,
+     *                      leave it NULL for pLineList.
+     */
+    void FinishEdit(std::unique_ptr<SmNodeList> pLineList, SmStructureNode* pParent,
+                    int nParentIndex, SmCaretPos PosAfterEdit, SmNode* pStartLine = nullptr);
+    /** Request the formula is repainted */
+    void RequestRepaint();
+};
+
+/** Minimalistic recursive decent SmNodeList parser
+ *
+ * This parser is used to take a list of nodes that constitutes a line
+ * and parse them to a tree of SmBinHorNode, SmUnHorNode and SmExpression.
+ *
+ * Please note, this will not handle all kinds of nodes, only nodes that
+ * constitutes and entry in a line.
+ *
+ * Below is an EBNF representation of the grammar used for this parser:
+ * \code
+ * Expression   -> Relation*
+ * Relation     -> Sum [(=|<|>|...) Sum]*
+ * Sum          -> Product [(+|-) Product]*
+ * Product      -> Factor [(*|/) Factor]*
+ * Factor       -> [+|-|-+|...]* Factor | Postfix
+ * Postfix      -> node [!]*
+ * \endcode
+ */
+class SmNodeListParser
+{
+public:
+    /** Create an instance of SmNodeListParser */
+    SmNodeListParser() { pList = nullptr; }
+    /** Parse a list of nodes to an expression.
+     *
+     * Old error nodes will be deleted.
+     */
+    SmNode* Parse(SmNodeList* list);
+    /** True, if the token is an operator */
+    static bool IsOperator(const SmToken& token);
+    /** True, if the token is a relation operator */
+    static bool IsRelationOperator(const SmToken& token);
+    /** True, if the token is a sum operator */
+    static bool IsSumOperator(const SmToken& token);
+    /** True, if the token is a product operator */
+    static bool IsProductOperator(const SmToken& token);
+    /** True, if the token is a unary operator */
+    static bool IsUnaryOperator(const SmToken& token);
+    /** True, if the token is a postfix operator */
+    static bool IsPostfixOperator(const SmToken& token);
+
+private:
+    SmNodeList* pList;
+    /** Get the current terminal */
+    SmNode* Terminal()
+    {
+        if (!pList->empty())
+            return pList->front();
+        return nullptr;
+    }
+    /** Move to next terminal */
+    SmNode* Next()
+    {
+        pList->pop_front();
+        return Terminal();
+    }
+    /** Take the current terminal */
+    SmNode* Take()
+    {
+        SmNode* pRetVal = Terminal();
+        Next();
+        return pRetVal;
+    }
+    SmNode* Expression();
+    SmNode* Relation();
+    SmNode* Sum();
+    SmNode* Product();
+    SmNode* Factor();
+    SmNode* Postfix();
+    static SmNode* Error();
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/dialog.hxx b/starmath/inc/dialog.hxx
new file mode 100644
index 000000000..fee12d9a5
--- /dev/null
+++ b/starmath/inc/dialog.hxx
@@ -0,0 +1,483 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sfx2/tabdlg.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/customweld.hxx>
+#include "symbol.hxx"
+
+class SubsetMap;
+class SmFormat;
+class FontList;
+class SvxShowCharSet;
+
+#define CATEGORY_NONE   0xFFFF
+
+/**************************************************************************/
+
+void SetFontStyle(std::u16string_view rStyleName, vcl::Font &rFont);
+
+/**************************************************************************/
+
+class SmPrintOptionsTabPage final : public SfxTabPage
+{
+    std::unique_ptr<weld::CheckButton>      m_xTitle;
+    std::unique_ptr<weld::CheckButton>      m_xText;
+    std::unique_ptr<weld::CheckButton>      m_xFrame;
+    std::unique_ptr<weld::RadioButton>      m_xSizeNormal;
+    std::unique_ptr<weld::RadioButton>      m_xSizeScaled;
+    std::unique_ptr<weld::RadioButton>      m_xSizeZoomed;
+    std::unique_ptr<weld::MetricSpinButton> m_xZoom;
+    std::unique_ptr<weld::CheckButton>      m_xNoRightSpaces;
+    std::unique_ptr<weld::CheckButton>      m_xSaveOnlyUsedSymbols;
+    std::unique_ptr<weld::CheckButton>      m_xAutoCloseBrackets;
+    std::unique_ptr<weld::MetricSpinButton> m_xSmZoom;
+
+    DECL_LINK(SizeButtonClickHdl, weld::Toggleable&, void);
+
+    virtual bool    FillItemSet(SfxItemSet* rSet) override;
+    virtual void    Reset(const SfxItemSet* rSet) override;
+
+public:
+    static std::unique_ptr<SfxTabPage> Create(weld::Container* pPage, weld::DialogController* pController, const SfxItemSet &rSet);
+
+    SmPrintOptionsTabPage(weld::Container* pPage, weld::DialogController* pController, const SfxItemSet &rOptions);
+    virtual ~SmPrintOptionsTabPage() override;
+};
+
+/**************************************************************************/
+
+class SmShowFont final : public weld::CustomWidgetController
+{
+    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) override;
+
+    vcl::Font maFont;
+
+public:
+    SmShowFont()
+    {
+    }
+    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;
+    void SetFont(const vcl::Font& rFont);
+};
+
+class SmFontDialog : public weld::GenericDialogController
+{
+    vcl::Font maFont;
+    SmShowFont m_aShowFont;
+    std::unique_ptr<weld::EntryTreeView> m_xFontBox;
+    std::unique_ptr<weld::Widget> m_xAttrFrame;
+    std::unique_ptr<weld::CheckButton> m_xBoldCheckBox;
+    std::unique_ptr<weld::CheckButton> m_xItalicCheckBox;
+    std::unique_ptr<weld::CustomWeld> m_xShowFont;
+
+    DECL_LINK(FontSelectHdl, weld::ComboBox&, void);
+    DECL_LINK(AttrChangeHdl, weld::Toggleable&, void);
+
+public:
+    SmFontDialog(weld::Window* pParent, OutputDevice *pFntListDevice, bool bHideCheckboxes);
+    virtual ~SmFontDialog() override;
+
+    const vcl::Font& GetFont() const
+    {
+        return maFont;
+    }
+    void SetFont(const vcl::Font &rFont);
+};
+
+/**************************************************************************/
+
+class SmFontSizeDialog final : public weld::GenericDialogController
+{
+    std::unique_ptr<weld::MetricSpinButton> m_xBaseSize;
+    std::unique_ptr<weld::MetricSpinButton> m_xTextSize;
+    std::unique_ptr<weld::MetricSpinButton> m_xIndexSize;
+    std::unique_ptr<weld::MetricSpinButton> m_xFunctionSize;
+    std::unique_ptr<weld::MetricSpinButton> m_xOperatorSize;
+    std::unique_ptr<weld::MetricSpinButton> m_xBorderSize;
+    std::unique_ptr<weld::Button> m_xDefaultButton;
+
+    DECL_LINK(DefaultButtonClickHdl, weld::Button&, void);
+
+public:
+    SmFontSizeDialog(weld::Window *pParent);
+    virtual ~SmFontSizeDialog() override;
+
+    void ReadFrom(const SmFormat &rFormat);
+    void WriteTo (SmFormat &rFormat) const;
+};
+
+/**************************************************************************/
+
+class SmFontTypeDialog final : public weld::GenericDialogController
+{
+    VclPtr<OutputDevice> pFontListDev;
+
+    std::unique_ptr<SmFontPickListBox> m_xVariableFont;
+    std::unique_ptr<SmFontPickListBox> m_xFunctionFont;
+    std::unique_ptr<SmFontPickListBox> m_xNumberFont;
+    std::unique_ptr<SmFontPickListBox> m_xTextFont;
+    std::unique_ptr<SmFontPickListBox> m_xSerifFont;
+    std::unique_ptr<SmFontPickListBox> m_xSansFont;
+    std::unique_ptr<SmFontPickListBox> m_xFixedFont;
+    std::unique_ptr<weld::MenuButton> m_xMenuButton;
+    std::unique_ptr<weld::Button> m_xDefaultButton;
+
+    DECL_LINK(MenuSelectHdl, const OString&, void);
+    DECL_LINK(DefaultButtonClickHdl, weld::Button&, void);
+
+public:
+    SmFontTypeDialog(weld::Window* pParent, OutputDevice *pFntListDevice);
+    virtual ~SmFontTypeDialog() override;
+
+    void ReadFrom(const SmFormat &rFormat);
+    void WriteTo (SmFormat &rFormat) const;
+};
+
+/**************************************************************************/
+
+#define NOCATEGORIES    10
+
+class SmCategoryDesc
+{
+    OUString Name;
+    OUString Strings[4];
+    std::unique_ptr<weld::Widget> Graphics[4];    /* regular bitmaps */
+    sal_uInt16 Minimum[4];
+    sal_uInt16 Maximum[4];
+    sal_uInt16 Value[4];
+
+public:
+    SmCategoryDesc(weld::Builder& rBuilder, sal_uInt16 nCategoryIdx);
+    ~SmCategoryDesc();
+
+    const OUString& GetName() const                 { return Name; }
+    const OUString& GetString(sal_uInt16 Index) const   { return Strings[Index];  }
+    sal_uInt16          GetMinimum(sal_uInt16 Index)        { return Minimum[Index]; }
+    sal_uInt16          GetMaximum(sal_uInt16 Index)        { return Maximum[Index]; }
+    sal_uInt16          GetValue(sal_uInt16 Index) const    { return Value[Index]; }
+    void            SetValue(sal_uInt16 Index, sal_uInt16 nVal) { Value[Index] = nVal;}
+
+    weld::Widget* GetGraphic(sal_uInt16 Index) const
+    {
+        return Graphics[Index].get();
+    }
+};
+
+class SmDistanceDialog final : public weld::GenericDialogController
+{
+    std::unique_ptr<weld::Frame> m_xFrame;
+    std::unique_ptr<weld::Label> m_xFixedText1;
+    std::unique_ptr<weld::MetricSpinButton>    m_xMetricField1;
+    std::unique_ptr<weld::Label> m_xFixedText2;
+    std::unique_ptr<weld::MetricSpinButton>    m_xMetricField2;
+    std::unique_ptr<weld::Label> m_xFixedText3;
+    std::unique_ptr<weld::MetricSpinButton>    m_xMetricField3;
+    std::unique_ptr<weld::CheckButton> m_xCheckBox1;
+    std::unique_ptr<weld::Label> m_xFixedText4;
+    std::unique_ptr<weld::MetricSpinButton> m_xMetricField4;
+    std::unique_ptr<weld::MenuButton> m_xMenuButton;
+    std::unique_ptr<weld::Button> m_xDefaultButton;
+    std::unique_ptr<weld::Widget> m_xBitmap;
+
+    weld::Widget* m_pCurrentImage;
+
+    std::unique_ptr<SmCategoryDesc> m_xCategories[NOCATEGORIES];
+    sal_uInt16          nActiveCategory;
+    bool            bScaleAllBrackets;
+
+    DECL_LINK(GetFocusHdl, weld::Widget&, void);
+    DECL_LINK(MenuSelectHdl, const OString&, void);
+    DECL_LINK(DefaultButtonClickHdl, weld::Button&, void);
+    DECL_LINK(CheckBoxClickHdl, weld::Toggleable&, void);
+
+    void    SetCategory(sal_uInt16 Category);
+
+public:
+    SmDistanceDialog(weld::Window *pParent);
+    virtual ~SmDistanceDialog() override;
+
+    void ReadFrom(const SmFormat &rFormat);
+    void WriteTo (SmFormat &rFormat);
+};
+
+/**************************************************************************/
+
+
+class SmAlignDialog final : public weld::GenericDialogController
+{
+    std::unique_ptr<weld::RadioButton> m_xLeft;
+    std::unique_ptr<weld::RadioButton> m_xCenter;
+    std::unique_ptr<weld::RadioButton> m_xRight;
+    std::unique_ptr<weld::Button> m_xDefaultButton;
+
+    DECL_LINK(DefaultButtonClickHdl, weld::Button&, void);
+
+public:
+    SmAlignDialog(weld::Window *pParent);
+    virtual ~SmAlignDialog() override;
+
+    void ReadFrom(const SmFormat &rFormat);
+    void WriteTo (SmFormat &rFormat) const;
+};
+
+/**************************************************************************/
+
+class SmShowSymbolSet final : public weld::CustomWidgetController
+{
+    Size m_aOldSize;
+    SymbolPtrVec_t aSymbolSet;
+    Link<SmShowSymbolSet&,void> aSelectHdlLink;
+    Link<SmShowSymbolSet&,void> aDblClickHdlLink;
+    tools::Long        nLen;
+    sal_Int32      nRows, nColumns;
+    tools::Long        nXOffset, nYOffset;
+    sal_uInt16  nSelectSymbol;
+    std::unique_ptr<weld::ScrolledWindow> m_xScrolledWindow;
+
+    void SetScrollBarRange();
+    Point OffsetPoint(const Point &rPoint) const;
+
+    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect) override;
+    virtual bool MouseButtonDown(const MouseEvent& rMEvt) override;
+    virtual bool KeyInput(const KeyEvent& rKEvt) override;
+    virtual void Resize() override;
+
+    DECL_LINK(ScrollHdl, weld::ScrolledWindow&, void);
+
+public:
+    SmShowSymbolSet(std::unique_ptr<weld::ScrolledWindow> pScrolledWindow);
+
+    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override
+    {
+        CustomWidgetController::SetDrawingArea(pDrawingArea);
+        m_aOldSize = Size(pDrawingArea->get_approximate_digit_width() * 27,
+                          pDrawingArea->get_text_height() * 9);
+        pDrawingArea->set_size_request(m_aOldSize.Width(), m_aOldSize.Height());
+        SetOutputSizePixel(m_aOldSize);
+        calccols(pDrawingArea->get_ref_device());
+    }
+
+    void calccols(const vcl::RenderContext& rRenderContext);
+    void    SelectSymbol(sal_uInt16 nSymbol);
+    sal_uInt16  GetSelectSymbol() const { return nSelectSymbol; }
+    void SetSymbolSet(const SymbolPtrVec_t & rSymbolSet);
+    void SetSelectHdl(const Link<SmShowSymbolSet&,void>& rLink) { aSelectHdlLink = rLink; }
+    void SetDblClickHdl(const Link<SmShowSymbolSet&,void>& rLink) { aDblClickHdlLink = rLink; }
+};
+
+class SmShowSymbol final : public weld::CustomWidgetController
+{
+private:
+    vcl::Font m_aFont;
+    OUString m_aText;
+
+    Link<SmShowSymbol&,void> aDblClickHdlLink;
+
+    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) override;
+    virtual bool MouseButtonDown(const MouseEvent& rMEvt) override;
+
+    void setFontSize(vcl::Font &rFont) const;
+
+public:
+    SmShowSymbol();
+
+    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override
+    {
+        CustomWidgetController::SetDrawingArea(pDrawingArea);
+        pDrawingArea->set_size_request(pDrawingArea->get_approximate_digit_width() * 27,
+                                       pDrawingArea->get_text_height() * 9);
+    }
+
+    void SetText(const OUString& rText) { m_aText = rText; }
+    const OUString& GetText() const { return m_aText; }
+
+    void SetFont(const vcl::Font& rFont) { m_aFont = rFont; }
+    const vcl::Font& GetFont() const { return m_aFont; }
+
+    void    SetSymbol(const SmSym *pSymbol);
+    void    SetDblClickHdl(const Link<SmShowSymbol&,void> &rLink) { aDblClickHdlLink = rLink; }
+};
+
+class SmSymbolDialog final : public weld::GenericDialogController
+{
+    SmViewShell        &rViewSh;
+    SmSymbolManager    &rSymbolMgr;
+
+    OUString       aSymbolSetName;
+    SymbolPtrVec_t      aSymbolSet;
+
+    VclPtr<OutputDevice> pFontListDev;
+
+    SmShowSymbol m_aSymbolDisplay;
+
+    std::unique_ptr<weld::ComboBox> m_xSymbolSets;
+    std::unique_ptr<SmShowSymbolSet> m_xSymbolSetDisplay;
+    std::unique_ptr<weld::CustomWeld> m_xSymbolSetDisplayArea;
+    std::unique_ptr<weld::Label> m_xSymbolName;
+    std::unique_ptr<weld::CustomWeld> m_xSymbolDisplay;
+    std::unique_ptr<weld::Button> m_xGetBtn;
+    std::unique_ptr<weld::Button> m_xEditBtn;
+
+    DECL_LINK(SymbolSetChangeHdl, weld::ComboBox&, void);
+    DECL_LINK(SymbolChangeHdl, SmShowSymbolSet&, void);
+    DECL_LINK(SymbolDblClickHdl, SmShowSymbol&, void);
+    DECL_LINK(SymbolDblClickHdl2, SmShowSymbolSet&, void);
+    DECL_LINK(EditClickHdl, weld::Button&, void);
+    DECL_LINK(GetClickHdl, weld::Button&, void);
+    void SymbolDblClickHdl();
+
+    void            FillSymbolSets();
+    const SmSym    *GetSymbol() const;
+
+public:
+    SmSymbolDialog(weld::Window* pParent, OutputDevice *pFntListDevice,
+            SmSymbolManager &rSymbolMgr, SmViewShell &rViewShell);
+    virtual ~SmSymbolDialog() override;
+
+    bool    SelectSymbolSet(const OUString &rSymbolSetName);
+    void    SelectSymbol(sal_uInt16 nSymbolPos);
+};
+
+class SmShowChar final : public weld::CustomWidgetController
+{
+private:
+    OUString m_aText;
+    vcl::Font m_aFont;
+
+    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) override;
+    virtual void Resize() override;
+
+public:
+    SmShowChar()
+    {
+    }
+
+    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override
+    {
+        CustomWidgetController::SetDrawingArea(pDrawingArea);
+        pDrawingArea->set_size_request(pDrawingArea->get_approximate_digit_width() * 7,
+                                       pDrawingArea->get_text_height() * 3);
+    }
+
+    void SetSymbol(const SmSym *pSym);
+    void SetSymbol(sal_UCS4 cChar, const vcl::Font &rFont);
+    void SetText(const OUString& rText) { m_aText = rText; }
+    const OUString& GetText() const { return m_aText; }
+    void SetFont(const vcl::Font& rFont) { m_aFont = rFont; }
+    const vcl::Font& GetFont() const { return m_aFont; }
+};
+
+class SmSymDefineDialog final : public weld::GenericDialogController
+{
+    VclPtr<VirtualDevice> m_xVirDev;
+    SmSymbolManager m_aSymbolMgrCopy;
+    SmSymbolManager& m_rSymbolMgr;
+    SmShowChar m_aOldSymbolDisplay;
+    SmShowChar m_aSymbolDisplay;
+    std::unique_ptr<SmSym> m_xOrigSymbol;
+    std::unique_ptr<SubsetMap> m_xSubsetMap;
+    std::unique_ptr<FontList> m_xFontList;
+    std::unique_ptr<weld::ComboBox> m_xOldSymbols;
+    std::unique_ptr<weld::ComboBox> m_xOldSymbolSets;
+    std::unique_ptr<weld::ComboBox> m_xSymbols;
+    std::unique_ptr<weld::ComboBox> m_xSymbolSets;
+    std::unique_ptr<weld::ComboBox> m_xFonts;
+    std::unique_ptr<weld::ComboBox> m_xFontsSubsetLB;
+    std::unique_ptr<weld::ComboBox> m_xStyles;
+    std::unique_ptr<weld::Label> m_xOldSymbolName;
+    std::unique_ptr<weld::Label> m_xOldSymbolSetName;
+    std::unique_ptr<weld::Label> m_xSymbolName;
+    std::unique_ptr<weld::Label> m_xSymbolSetName;
+    std::unique_ptr<weld::Button> m_xAddBtn;
+    std::unique_ptr<weld::Button> m_xChangeBtn;
+    std::unique_ptr<weld::Button> m_xDeleteBtn;
+    std::unique_ptr<weld::CustomWeld> m_xOldSymbolDisplay;
+    std::unique_ptr<weld::CustomWeld> m_xSymbolDisplay;
+    std::unique_ptr<SvxShowCharSet>  m_xCharsetDisplay;
+    std::unique_ptr<weld::CustomWeld>  m_xCharsetDisplayArea;
+
+    DECL_LINK(OldSymbolChangeHdl, weld::ComboBox&, void);
+    DECL_LINK(OldSymbolSetChangeHdl, weld::ComboBox&, void);
+    DECL_LINK(ModifyHdl, weld::ComboBox&, void);
+    DECL_LINK(FontChangeHdl, weld::ComboBox&, void);
+    DECL_LINK(SubsetChangeHdl, weld::ComboBox&, void);
+    DECL_LINK(StyleChangeHdl, weld::ComboBox&, void);
+    DECL_LINK(CharHighlightHdl, SvxShowCharSet*, void);
+    DECL_LINK(AddClickHdl, weld::Button&, void);
+    DECL_LINK(ChangeClickHdl, weld::Button&, void);
+    DECL_LINK(DeleteClickHdl, weld::Button&, void);
+
+    void    FillSymbols(weld::ComboBox& rComboBox, bool bDeleteText = true);
+    void    FillSymbolSets(weld::ComboBox& rComboBox, bool bDeleteText = true);
+    void    FillFonts();
+    void    FillStyles();
+
+    void    SetSymbolSetManager(const SmSymbolManager &rMgr);
+    void    SetFont(const OUString &rFontName, std::u16string_view rStyleName);
+    void    SetOrigSymbol(const SmSym *pSymbol, const OUString &rSymbolSetName);
+    void    UpdateButtons();
+
+    bool    SelectSymbolSet(weld::ComboBox &rComboBox, std::u16string_view rSymbolSetName,
+                            bool bDeleteText);
+    bool    SelectSymbol(weld::ComboBox& rComboBox, const OUString &rSymbolName,
+                            bool bDeleteText);
+    bool    SelectFont(const OUString &rFontName, bool bApplyFont);
+    bool    SelectStyle(const OUString &rStyleName, bool bApplyFont);
+
+    SmSym* GetSymbol(const weld::ComboBox& rComboBox);
+    const SmSym* GetSymbol(const weld::ComboBox& rComboBox) const
+    {
+        return const_cast<SmSymDefineDialog *>(this)->GetSymbol(rComboBox);
+    }
+
+public:
+    SmSymDefineDialog(weld::Window *pParent, OutputDevice *pFntListDevice, SmSymbolManager &rMgr);
+    virtual ~SmSymDefineDialog() override;
+
+    virtual short run() override;
+
+    void SelectOldSymbolSet(std::u16string_view rSymbolSetName)
+    {
+        SelectSymbolSet(*m_xOldSymbolSets, rSymbolSetName, false);
+    }
+
+    void SelectOldSymbol(const OUString &rSymbolName)
+    {
+        SelectSymbol(*m_xOldSymbols, rSymbolName, false);
+    }
+
+    bool SelectSymbolSet(std::u16string_view rSymbolSetName)
+    {
+        return SelectSymbolSet(*m_xSymbolSets, rSymbolSetName, false);
+    }
+
+    bool SelectSymbol(const OUString &rSymbolName)
+    {
+        return SelectSymbol(*m_xSymbols, rSymbolName, false);
+    }
+
+    bool        SelectFont(const OUString &rFontName)   { return SelectFont(rFontName, true); }
+    bool        SelectStyle(const OUString &rStyleName) { return SelectStyle(rStyleName, true); };
+    void        SelectChar(sal_Unicode cChar);
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/document.hxx b/starmath/inc/document.hxx
new file mode 100644
index 000000000..214d9a9ce
--- /dev/null
+++ b/starmath/inc/document.hxx
@@ -0,0 +1,226 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <rtl/strbuf.hxx>
+#include <sfx2/docfac.hxx>
+#include <sfx2/objsh.hxx>
+#include <svl/lstner.hxx>
+#include <svl/itempool.hxx>
+#include <sax/fshelper.hxx>
+#include <unotools/lingucfg.hxx>
+#include <oox/core/filterbase.hxx>
+#include <oox/export/utils.hxx>
+
+#include "format.hxx"
+#include "node.hxx"
+#include "parsebase.hxx"
+#include "smdllapi.hxx"
+#include "mathml/iterator.hxx"
+
+class SfxPrinter;
+class Printer;
+class SmCursor;
+
+namespace oox::formulaimport { class XmlStream; }
+
+#define STAROFFICE_XML  "StarOffice XML (Math)"
+inline constexpr OUStringLiteral MATHML_XML = u"MathML XML (Math)";
+
+/* Access to printer should happen through this class only
+ * ==========================================================================
+ *
+ * The printer can belong to the document or the OLE-Container. If the document
+ * is an OLE-Document the printer generally belongs to the container too.
+ * But the container maybe works with a different MapUnit than the server.
+ * Referring to the MapMode the printer will be accordingly adjusted in the
+ * constructor and restored in the destructor. This brings that this class
+ * is always allowed to exists only a short time (e.g. while painting).
+ * The control whether the printer is self-generated, gotten from the server
+ * or is NULL then, is taken by the DocShell in the method GetPrt(), for
+ * which the access is friend of the DocShell too.
+ */
+
+class SmDocShell;
+class EditEngine;
+class SmEditEngine;
+
+class SmPrinterAccess
+{
+    VclPtr<Printer> pPrinter;
+    VclPtr<OutputDevice> pRefDev;
+public:
+    explicit SmPrinterAccess( SmDocShell &rDocShell );
+    ~SmPrinterAccess();
+    Printer* GetPrinter()  { return pPrinter.get(); }
+    OutputDevice* GetRefDev()  { return pRefDev.get(); }
+};
+
+
+class SM_DLLPUBLIC SmDocShell final : public SfxObjectShell, public SfxListener
+{
+    friend class SmPrinterAccess;
+    friend class SmCursor;
+
+    OUString            maText;
+    SmFormat            maFormat;
+    OUString            maAccText;
+    SvtLinguOptions     maLinguOptions;
+    std::unique_ptr<SmTableNode> mpTree;
+    SmMlElement* m_pMlElementTree;
+    rtl::Reference<SfxItemPool> mpEditEngineItemPool;
+    std::unique_ptr<SmEditEngine> mpEditEngine;
+    VclPtr<SfxPrinter>  mpPrinter;       //q.v. comment to SmPrinter Access!
+    VclPtr<Printer>     mpTmpPrinter;    //ditto
+    sal_uInt16          mnModifyCount;
+    bool                mbFormulaArranged;
+    sal_uInt16          mnSmSyntaxVersion;
+    std::unique_ptr<AbstractSmParser> maParser;
+    std::unique_ptr<SmCursor> mpCursor;
+    std::set< OUString >    maUsedSymbols;   // to export used symbols only when saving
+
+
+    virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override;
+
+    bool        WriteAsMathType3( SfxMedium& );
+
+    virtual void        Draw(OutputDevice *pDevice,
+                             const JobSetup & rSetup,
+                             sal_uInt16 nAspect) override;
+
+    virtual void        FillClass(SvGlobalName* pClassName,
+                                  SotClipboardFormatId*  pFormat,
+                                  OUString* pFullTypeName,
+                                  sal_Int32 nFileFormat,
+                                  bool bTemplate = false ) const override;
+
+    virtual void        OnDocumentPrinterChanged( Printer * ) override;
+    virtual bool        InitNew( const css::uno::Reference< css::embed::XStorage >& xStorage ) override;
+    virtual bool        Load( SfxMedium& rMedium ) override;
+    virtual bool        Save() override;
+    virtual bool        SaveAs( SfxMedium& rMedium ) override;
+
+    Printer             *GetPrt();
+    OutputDevice*       GetRefDev();
+
+    void                SetFormulaArranged(bool bVal) { mbFormulaArranged = bVal; }
+
+    virtual bool        ConvertFrom(SfxMedium &rMedium) override;
+
+    /** Called whenever the formula is changed
+     * Deletes the current cursor
+     */
+    void                InvalidateCursor();
+
+public:
+    SFX_DECL_INTERFACE(SFX_INTERFACE_SMA_START+SfxInterfaceId(1))
+
+    SFX_DECL_OBJECTFACTORY();
+
+private:
+    /// SfxInterface initializer.
+    static void InitInterface_Impl();
+
+public:
+    explicit SmDocShell( SfxModelFlags i_nSfxCreationFlags );
+    virtual     ~SmDocShell() override;
+
+    virtual bool        ConvertTo( SfxMedium &rMedium ) override;
+
+    // For unit tests, not intended to use in other context
+    void SetGreekCharStyle(sal_Int16 nVal) { maFormat.SetGreekCharStyle(nVal); }
+
+    static void LoadSymbols();
+    static void SaveSymbols();
+
+    void        ArrangeFormula();
+
+    //Access for the View. This access is not for the OLE-case!
+    //and for the communication with the SFX!
+    //All internal printer uses should work with the SmPrinterAccess only
+    bool        HasPrinter() const { return mpPrinter != nullptr; }
+    SfxPrinter *GetPrinter()    { GetPrt(); return mpPrinter; }
+    void        SetPrinter( SfxPrinter * );
+
+    OUString GetComment() const;
+
+    // to replace chars that can not be saved with the document...
+    void        ReplaceBadChars();
+
+    void        UpdateText();
+    void        SetText(const OUString& rBuffer);
+    const OUString&  GetText() const { return maText; }
+    void        SetFormat(SmFormat const & rFormat);
+    const SmFormat&  GetFormat() const { return maFormat; }
+
+    void            Parse();
+    AbstractSmParser* GetParser() { return maParser.get(); }
+    const SmTableNode *GetFormulaTree() const  { return mpTree.get(); }
+    void            SetFormulaTree(SmTableNode *pTree) { mpTree.reset(pTree); }
+    sal_uInt16      GetSmSyntaxVersion() const { return mnSmSyntaxVersion; }
+    void            SetSmSyntaxVersion(sal_uInt16 nSmSyntaxVersion);
+
+    const std::set< OUString > &    GetUsedSymbols() const  { return maUsedSymbols; }
+
+    OUString const & GetAccessibleText();
+
+    EditEngine &    GetEditEngine();
+
+    void        DrawFormula(OutputDevice &rDev, Point &rPosition, bool bDrawSelection = false);
+    Size        GetSize();
+
+    void        Repaint();
+
+    virtual SfxUndoManager *GetUndoManager () override;
+
+    static SfxItemPool& GetPool();
+
+    void        Execute( SfxRequest& rReq );
+    void        GetState(SfxItemSet &);
+
+    virtual void SetVisArea (const tools::Rectangle & rVisArea) override;
+    virtual void SetModified(bool bModified = true) override;
+
+    /** Get a cursor for modifying this document
+     * @remarks Don't store this reference, a new cursor may be made...
+     */
+    SmCursor&   GetCursor();
+    /** True, if cursor have previously been requested and thus
+     * has some sort of position.
+     */
+    bool        HasCursor() const;
+
+    void writeFormulaOoxml(const ::sax_fastparser::FSHelperPtr& pSerializer,
+            oox::core::OoxmlVersion version,
+            oox::drawingml::DocumentType documentType,
+            const sal_Int8 nAlign);
+    void writeFormulaRtf(OStringBuffer& rBuffer, rtl_TextEncoding nEncoding);
+    void readFormulaOoxml( oox::formulaimport::XmlStream& stream );
+
+    void UpdateEditEngineDefaultFonts();
+
+    SmMlElement* GetMlElementTree()  { return m_pMlElementTree; }
+    void SetMlElementTree(SmMlElement* pMlElementTree) {
+        mathml::SmMlIteratorFree(m_pMlElementTree);
+        m_pMlElementTree = pMlElementTree;
+    }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/edit.hxx b/starmath/inc/edit.hxx
new file mode 100644
index 000000000..2fd6fac63
--- /dev/null
+++ b/starmath/inc/edit.hxx
@@ -0,0 +1,136 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <svx/weldeditview.hxx>
+#include <vcl/idle.hxx>
+
+class SmDocShell;
+class SmViewShell;
+class EditView;
+class EditEngine;
+class EditStatus;
+class DataChangedEvent;
+class SmCmdBoxWindow;
+class CommandEvent;
+class Timer;
+
+void SmGetLeftSelectionPart(const ESelection& rSelection, sal_Int32& nPara, sal_uInt16& nPos);
+
+class SmEditWindow;
+
+class SmEditTextWindow : public WeldEditView
+{
+private:
+    SmEditWindow& mrEditWindow;
+
+    Idle aModifyIdle;
+    Idle aCursorMoveIdle;
+
+    ESelection aOldSelection;
+
+    DECL_LINK(ModifyTimerHdl, Timer*, void);
+    DECL_LINK(CursorMoveTimerHdl, Timer*, void);
+    DECL_LINK(EditStatusHdl, EditStatus&, void);
+
+public:
+    SmEditTextWindow(SmEditWindow& rEditWindow);
+    virtual ~SmEditTextWindow() override;
+
+    virtual EditEngine* GetEditEngine() const override;
+
+    virtual void EditViewScrollStateChange() override;
+
+    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;
+
+    virtual bool KeyInput(const KeyEvent& rKeyEvt) override;
+    virtual bool MouseButtonUp(const MouseEvent& rEvt) override;
+    virtual bool Command(const CommandEvent& rCEvt) override;
+    virtual void GetFocus() override;
+    virtual void LoseFocus() override;
+    virtual void StyleUpdated() override;
+
+    void SetText(const OUString& rText);
+    void InsertText(const OUString& rText);
+    void SelNextMark();
+    ESelection GetSelection() const;
+    void UserPossiblyChangedText();
+    void Flush();
+    void UpdateStatus(bool bSetDocModified);
+    void StartCursorMove();
+};
+
+class SmEditWindow final
+{
+    SmCmdBoxWindow& rCmdBox;
+    std::unique_ptr<weld::ScrolledWindow> mxScrolledWindow;
+    std::unique_ptr<SmEditTextWindow> mxTextControl;
+    std::unique_ptr<weld::CustomWeld> mxTextControlWin;
+
+    DECL_LINK(ScrollHdl, weld::ScrolledWindow&, void);
+
+    void CreateEditView(weld::Builder& rBuilder);
+
+public:
+    SmEditWindow(SmCmdBoxWindow& rMyCmdBoxWin, weld::Builder& rBuilder);
+    ~SmEditWindow() COVERITY_NOEXCEPT_FALSE;
+
+    weld::Window* GetFrameWeld() const;
+
+    SmDocShell* GetDoc();
+    SmViewShell* GetView();
+    EditView* GetEditView() const;
+    EditEngine* GetEditEngine();
+    SmCmdBoxWindow& GetCmdBox() const { return rCmdBox; }
+
+    void SetText(const OUString& rText);
+    OUString GetText() const;
+    void Flush();
+    void GrabFocus();
+
+    css::uno::Reference<css::datatransfer::clipboard::XClipboard> GetClipboard() const
+    {
+        return mxTextControl->GetClipboard();
+    }
+
+    ESelection GetSelection() const;
+    void SetSelection(const ESelection& rSel);
+    void UpdateStatus();
+
+    bool IsEmpty() const;
+    bool IsSelected() const;
+    bool IsAllSelected() const;
+    void SetScrollBarRanges();
+    tools::Rectangle AdjustScrollBars();
+    void InvalidateSlots();
+    void Cut();
+    void Copy();
+    void Paste();
+    void Delete();
+    void SelectAll();
+    void InsertText(const OUString& rText);
+    void MarkError(const Point& rPos);
+    void SelNextMark();
+    void SelPrevMark();
+
+    void DeleteEditView();
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/format.hxx b/starmath/inc/format.hxx
new file mode 100644
index 000000000..61fc8b047
--- /dev/null
+++ b/starmath/inc/format.hxx
@@ -0,0 +1,151 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <svl/hint.hxx>
+#include <svl/SfxBroadcaster.hxx>
+#include "utility.hxx"
+#include "types.hxx"
+
+
+inline constexpr OUStringLiteral FNTNAME_TIMES = u"Times New Roman";
+inline constexpr OUStringLiteral FNTNAME_HELV = u"Helvetica";
+inline constexpr OUStringLiteral FNTNAME_COUR = u"Courier";
+#define FNTNAME_MATH    FONTNAME_MATH
+
+
+// symbolic names used as array indices
+#define SIZ_BEGIN       0
+#define SIZ_TEXT        0
+#define SIZ_INDEX       1
+#define SIZ_FUNCTION    2
+#define SIZ_OPERATOR    3
+#define SIZ_LIMITS      4
+#define SIZ_END         4
+
+// symbolic names used as array indices
+#define FNT_BEGIN       0
+#define FNT_VARIABLE    0
+#define FNT_FUNCTION    1
+#define FNT_NUMBER      2
+#define FNT_TEXT        3
+#define FNT_SERIF       4
+#define FNT_SANS        5
+#define FNT_FIXED       6
+#define FNT_MATH        7
+#define FNT_END         7
+
+// symbolic names used as array indices
+#define DIS_BEGIN                0
+#define DIS_HORIZONTAL           0
+#define DIS_VERTICAL             1
+#define DIS_ROOT                 2
+#define DIS_SUPERSCRIPT          3
+#define DIS_SUBSCRIPT            4
+#define DIS_NUMERATOR            5
+#define DIS_DENOMINATOR          6
+#define DIS_FRACTION             7
+#define DIS_STROKEWIDTH          8
+#define DIS_UPPERLIMIT           9
+#define DIS_LOWERLIMIT          10
+#define DIS_BRACKETSIZE         11
+#define DIS_BRACKETSPACE        12
+#define DIS_MATRIXROW           13
+#define DIS_MATRIXCOL           14
+#define DIS_ORNAMENTSIZE        15
+#define DIS_ORNAMENTSPACE       16
+#define DIS_OPERATORSIZE        17
+#define DIS_OPERATORSPACE       18
+#define DIS_LEFTSPACE           19
+#define DIS_RIGHTSPACE          20
+#define DIS_TOPSPACE            21
+#define DIS_BOTTOMSPACE         22
+#define DIS_NORMALBRACKETSIZE   23
+#define DIS_END                 23
+
+
+enum class SmHorAlign {
+    Left,
+    Center,
+    Right
+};
+
+class SmFormat final : public SfxBroadcaster
+{
+    SmFace      vFont[FNT_END + 1];
+    bool        bDefaultFont[FNT_END + 1];
+    Size        aBaseSize;
+    sal_uInt16      vSize[SIZ_END + 1];
+    sal_uInt16      vDist[DIS_END + 1];
+    SmHorAlign  eHorAlign;
+    sal_Int16       nGreekCharStyle;
+    bool        bIsTextmode,
+                bScaleNormalBrackets;
+
+public:
+    SmFormat();
+    SmFormat(const SmFormat &rFormat) : SfxBroadcaster() { *this = rFormat; }
+
+    const Size &    GetBaseSize() const             { return aBaseSize; }
+    void            SetBaseSize(const Size &rSize)  { aBaseSize = rSize; }
+
+    const SmFace &  GetFont(sal_uInt16 nIdent) const { return vFont[nIdent]; }
+    void            SetFont(sal_uInt16 nIdent, const SmFace &rFont, bool bDefault = false);
+    void            SetFontSize(sal_uInt16 nIdent, const Size &rSize)   { vFont[nIdent].SetSize( rSize ); }
+
+    void            SetDefaultFont(sal_uInt16 nIdent, bool bVal)    { bDefaultFont[nIdent] = bVal; }
+    bool            IsDefaultFont(sal_uInt16 nIdent) const   { return bDefaultFont[nIdent]; }
+
+    sal_uInt16      GetRelSize(sal_uInt16 nIdent) const         { return vSize[nIdent]; }
+    void            SetRelSize(sal_uInt16 nIdent, sal_uInt16 nVal)  { vSize[nIdent] = nVal;}
+
+    sal_uInt16      GetDistance(sal_uInt16 nIdent) const            { return vDist[nIdent]; }
+    void            SetDistance(sal_uInt16 nIdent, sal_uInt16 nVal) { vDist[nIdent] = nVal; }
+
+    SmHorAlign      GetHorAlign() const             { return eHorAlign; }
+    void            SetHorAlign(SmHorAlign eAlign)  { eHorAlign = eAlign; }
+
+    bool            IsTextmode() const     { return bIsTextmode; }
+    void            SetTextmode(bool bVal) { bIsTextmode = bVal; }
+
+    sal_Int16       GetGreekCharStyle() const     { return nGreekCharStyle; }
+    void            SetGreekCharStyle(sal_Int16 nVal) { nGreekCharStyle = nVal; }
+
+    bool            IsScaleNormalBrackets() const     { return bScaleNormalBrackets; }
+    void            SetScaleNormalBrackets(bool bVal) { bScaleNormalBrackets = bVal; }
+
+    SmFormat &      operator = (const SmFormat &rFormat);
+
+    bool            operator == (const SmFormat &rFormat) const;
+    inline bool     operator != (const SmFormat &rFormat) const;
+
+    void RequestApplyChanges()
+    {
+        Broadcast(SfxHint(SfxHintId::MathFormatChanged));
+    }
+
+};
+
+inline bool    SmFormat::operator != (const SmFormat &rFormat) const
+{
+    return !(*this == rFormat);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/helpids.h b/starmath/inc/helpids.h
new file mode 100644
index 000000000..59489e57a
--- /dev/null
+++ b/starmath/inc/helpids.h
@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <rtl/string.hxx>
+
+inline constexpr OStringLiteral HID_SMA_WIN_DOCUMENT = "STARMATH_HID_SMA_WIN_DOCUMENT";
+inline constexpr OStringLiteral HID_SMA_COMMAND_WIN_EDIT = "STARMATH_HID_SMA_COMMAND_WIN_EDIT";
+
+inline constexpr OStringLiteral HID_SMA_COMMAND_WIN = "STARMATH_HID_SMA_COMMAND_WIN";
+
+#define HID_SMA_DEFAULT_DIST                              "STARMATH_HID_SMA_DEFAULT_DIST"
+#define HID_SMA_LINE_DIST                                 "STARMATH_HID_SMA_LINE_DIST"
+#define HID_SMA_ROOT_DIST                                 "STARMATH_HID_SMA_ROOT_DIST"
+#define HID_SMA_SUP_DIST                                  "STARMATH_HID_SMA_SUP_DIST"
+#define HID_SMA_SUB_DIST                                  "STARMATH_HID_SMA_SUB_DIST"
+#define HID_SMA_NUMERATOR_DIST                            "STARMATH_HID_SMA_NUMERATOR_DIST"
+#define HID_SMA_DENOMINATOR_DIST                          "STARMATH_HID_SMA_DENOMINATOR_DIST"
+#define HID_SMA_FRACLINE_EXCWIDTH                         "STARMATH_HID_SMA_FRACLINE_EXCWIDTH"
+#define HID_SMA_FRACLINE_LINEWIDTH                        "STARMATH_HID_SMA_FRACLINE_LINEWIDTH"
+#define HID_SMA_UPPERLIMIT_DIST                           "STARMATH_HID_SMA_UPPERLIMIT_DIST"
+#define HID_SMA_LOWERLIMIT_DIST                           "STARMATH_HID_SMA_LOWERLIMIT_DIST"
+#define HID_SMA_BRACKET_EXCHEIGHT                         "STARMATH_HID_SMA_BRACKET_EXCHEIGHT"
+#define HID_SMA_BRACKET_DIST                              "STARMATH_HID_SMA_BRACKET_DIST"
+#define HID_SMA_MATRIXROW_DIST                            "STARMATH_HID_SMA_MATRIXROW_DIST"
+#define HID_SMA_MATRIXCOL_DIST                            "STARMATH_HID_SMA_MATRIXCOL_DIST"
+#define HID_SMA_ATTRIBUT_DIST                             "STARMATH_HID_SMA_ATTRIBUT_DIST"
+#define HID_SMA_INTERATTRIBUT_DIST                        "STARMATH_HID_SMA_INTERATTRIBUT_DIST"
+#define HID_SMA_OPERATOR_EXCHEIGHT                        "STARMATH_HID_SMA_OPERATOR_EXCHEIGHT"
+#define HID_SMA_OPERATOR_DIST                             "STARMATH_HID_SMA_OPERATOR_DIST"
+#define HID_SMA_LEFTBORDER_DIST                           "STARMATH_HID_SMA_LEFTBORDER_DIST"
+#define HID_SMA_RIGHTBORDER_DIST                          "STARMATH_HID_SMA_RIGHTBORDER_DIST"
+#define HID_SMA_UPPERBORDER_DIST                          "STARMATH_HID_SMA_UPPERBORDER_DIST"
+#define HID_SMA_LOWERBORDER_DIST                          "STARMATH_HID_SMA_LOWERBORDER_DIST"
+#define HID_SMA_BRACKET_EXCHEIGHT2                        "STARMATH_HID_SMA_BRACKET_EXCHEIGHT2"
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/mathml/attribute.hxx b/starmath/inc/mathml/attribute.hxx
new file mode 100644
index 000000000..946e9f463
--- /dev/null
+++ b/starmath/inc/mathml/attribute.hxx
@@ -0,0 +1,203 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "def.hxx"
+
+/* All possible data needed to do the job outside mathml limits */
+// Ml prefix means it is part of mathml standard
+// NMl means it is not part of mathml standard but needed info to work
+
+/* Union for storing the mathml attribute value */
+/*************************************************************************************************/
+
+union SmMlAttributeValue {
+    SmMlAttributeValue(){};
+
+    struct SmMlAccent m_aAccent;
+    struct SmMlDir m_aDir;
+    struct SmMlDisplaystyle m_aDisplaystyle;
+    struct SmMlFence m_aFence;
+    struct SmMlForm m_aForm;
+    struct SmMlHref m_aHref;
+    struct SmMlLspace m_aLspace;
+    struct SmMlMathbackground m_aMathbackground;
+    struct SmMlMathcolor m_aMathcolor;
+    struct SmMlMathsize m_aMathsize;
+    struct SmMlMathvariant m_aMathvariant;
+    struct SmMlMaxsize m_aMaxsize;
+    struct SmMlMinsize m_aMinsize;
+    struct SmMlMovablelimits m_aMovablelimits;
+    struct SmMlRspace m_aRspace;
+    struct SmMlSeparator m_aSeparator;
+    struct SmMlStretchy m_aStretchy;
+    struct SmMlSymmetric m_aSymmetric;
+};
+
+/* Class managing the attribute value */
+/*************************************************************************************************/
+
+class SmMlAttribute
+{
+private:
+    SmMlAttributeValueType m_aSmMlAttributeValueType;
+    SmMlAttributeValue m_aAttributeValue;
+    bool m_bSet;
+
+private:
+    void clearPreviousAttributeValue();
+    void setDefaultAttributeValue();
+    void setAttributeValue(const SmMlAttribute* aMlAttribute);
+
+public:
+    SmMlAttribute()
+        : m_aSmMlAttributeValueType(SmMlAttributeValueType::NMlEmpty)
+        , m_bSet(false){};
+
+    ~SmMlAttribute() { clearPreviousAttributeValue(); };
+
+    SmMlAttribute(SmMlAttributeValueType)
+        : m_aSmMlAttributeValueType(SmMlAttributeValueType::NMlEmpty)
+        , m_bSet(false)
+    {
+        setDefaultAttributeValue();
+    };
+
+    SmMlAttribute(const SmMlAttribute& aMlAttribute)
+        : m_aSmMlAttributeValueType(SmMlAttributeValueType::NMlEmpty)
+        , m_bSet(aMlAttribute.isSet())
+    {
+        setAttributeValue(&aMlAttribute);
+    }
+
+    SmMlAttribute(const SmMlAttribute* aMlAttribute)
+        : m_aSmMlAttributeValueType(SmMlAttributeValueType::NMlEmpty)
+        , m_bSet(aMlAttribute->isSet())
+    {
+        setAttributeValue(aMlAttribute);
+    }
+
+public:
+    /** Check if the attribute has been set
+    */
+    bool isSet() const { return m_bSet; }
+
+    /** Set if the attribute has been set
+    */
+    void setSet(bool bSet) { m_bSet = bSet; }
+
+public:
+    /**
+      * Returns the type of attribute we are dealing with.
+      * Attribute Value Type
+      */
+    SmMlAttributeValueType getMlAttributeValueType() const { return m_aSmMlAttributeValueType; };
+
+    /**
+      * Checks if the attribute contains information.
+      * Attribute Value Type
+      */
+    bool isNullAttribute() const
+    {
+        return m_aSmMlAttributeValueType == SmMlAttributeValueType::NMlEmpty;
+    };
+
+    /**
+      * Compares the type of attribute with a given one.
+      * Attribute Value Type
+      */
+    bool isMlAttributeValueType(SmMlAttributeValueType aAttributeValueType) const
+    {
+        return m_aSmMlAttributeValueType == aAttributeValueType;
+    };
+
+    /**
+      * Set the type of attribute we are dealing with.
+      * @param Attribute Value Type
+      */
+    void setMlAttributeValueType(SmMlAttributeValueType aAttributeValueType)
+    {
+        clearPreviousAttributeValue();
+        m_aSmMlAttributeValueType = aAttributeValueType;
+        setDefaultAttributeValue();
+    }
+
+    void setMlAttributeValue(const SmMlAttribute& aMlAttribute)
+    {
+        m_bSet = true;
+        setAttributeValue(&aMlAttribute);
+    }
+
+    void setMlAttributeValue(const SmMlAttribute* aMlAttribute)
+    {
+        m_bSet = true;
+        setAttributeValue(aMlAttribute);
+    }
+
+public:
+    // Get values
+    const struct SmMlAccent* getMlAccent() const;
+    const struct SmMlDir* getMlDir() const;
+    const struct SmMlDisplaystyle* getMlDisplaystyle() const;
+    const struct SmMlFence* getMlFence() const;
+    const struct SmMlForm* getMlForm() const;
+    const struct SmMlHref* getMlHref() const;
+    const struct SmMlLspace* getMlLspace() const;
+    const struct SmMlMathbackground* getMlMathbackground() const;
+    const struct SmMlMathcolor* getMlMathcolor() const;
+    const struct SmMlMathsize* getMlMathsize() const;
+    const struct SmMlMathvariant* getMlMathvariant() const;
+    const struct SmMlMaxsize* getMlMaxsize() const;
+    const struct SmMlMinsize* getMlMinsize() const;
+    const struct SmMlMovablelimits* getMlMovablelimits() const;
+    const struct SmMlRspace* getMlRspace() const;
+    const struct SmMlSeparator* getMlSeparator() const;
+    const struct SmMlStretchy* getMlStretchy() const;
+    const struct SmMlSymmetric* getMlSymmetric() const;
+
+    // Set values
+    // Note that content is copied.
+    void setMlAccent(const SmMlAccent* aAccent);
+    void setMlDir(const SmMlDir* aDir);
+    void setMlDisplaystyle(const SmMlDisplaystyle* aDisplaystyle);
+    void setMlFence(const SmMlFence* aFence);
+    void setMlForm(const SmMlForm* aForm);
+    void setMlHref(const SmMlHref* aHref);
+    void setMlLspace(const SmMlLspace* aLspace);
+    void setMlMathbackground(const SmMlMathbackground* aMathbackground);
+    void setMlMathcolor(const SmMlMathcolor* aMathcolor);
+    void setMlMathsize(const SmMlMathsize* aMathsize);
+    void setMlMathvariant(const SmMlMathvariant* aMathvariant);
+    void setMlMaxsize(const SmMlMaxsize* aMaxsize);
+    void setMlMinsize(const SmMlMinsize* aMinSize);
+    void setMlMovablelimits(const SmMlMovablelimits* aMovablelimits);
+    void setMlRspace(const SmMlRspace* aRspace);
+    void setMlSeparator(const SmMlSeparator* aSeparator);
+    void setMlStretchy(const SmMlStretchy* aStretchy);
+    void setMlSymmetric(const SmMlSymmetric* aSymmetric);
+};
+
+/* element's attributes */
+/*************************************************************************************************/
+
+namespace starmathdatabase
+{
+extern SmMlAttributePos MlAttributeListEmpty[1];
+extern SmMlAttributePos MlAttributeListMath[1];
+extern SmMlAttributePos MlAttributeListMi[7];
+extern SmMlAttributePos MlAttributeListMerror[4];
+extern SmMlAttributePos MlAttributeListMn[7];
+extern SmMlAttributePos MlAttributeListMo[18];
+extern SmMlAttributePos MlAttributeListMrow[4];
+extern SmMlAttributePos MlAttributeListMtext[7];
+extern SmMlAttributePos MlAttributeListMstyle[18];
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/mathml/def.hxx b/starmath/inc/mathml/def.hxx
new file mode 100644
index 000000000..380736711
--- /dev/null
+++ b/starmath/inc/mathml/def.hxx
@@ -0,0 +1,330 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <tools/color.hxx>
+
+/* All possible data needed to do the job outside mathml limits */
+// Ml prefix means it is part of mathml standard
+// NMl means it is not part of mathml standard but needed info to work
+
+/* For now empty, don't know yet what's needed besides default font size. */
+struct SmGlobalData
+{
+};
+
+/* Mhtml length tools */
+/*************************************************************************************************/
+
+enum class SmLengthUnit : uint_fast8_t
+{
+    MlEm,
+    MlEx,
+    MlPx,
+    MlIn,
+    MlCm,
+    MlMm,
+    MlPt,
+    MlPc,
+    MlP, // Percent
+    MlM // Multiplier
+};
+
+struct SmLengthValue
+{
+    SmLengthUnit m_aLengthUnit;
+    double m_aLengthValue;
+    // Keeps original text value to avoid numerical error data loss
+    OUString* m_aOriginalText;
+};
+
+/* Possible mathml elements */
+/*************************************************************************************************/
+
+enum class SmMlElementType : uint_fast8_t
+{
+    // Used for base element. Means no information contained.
+    NMlEmpty,
+    // Used for structural dependencies. Means no information contained.
+    NMlStructural,
+    NMlSmNode,
+    // Mathml real elements
+    MlMath,
+    MlMi,
+    MlMerror,
+    MlMn,
+    MlMo,
+    MlMrow,
+    MlMtext,
+    MlMstyle
+};
+
+/* Possible mathml attributes */
+/*************************************************************************************************/
+
+enum class SmMlAttributeValueType : uint_fast8_t
+{
+    NMlEmpty,
+    MlAccent,
+    MlDir,
+    MlDisplaystyle,
+    MlFence,
+    MlForm,
+    MlHref,
+    MlLspace,
+    MlMathbackground,
+    MlMathcolor,
+    MlMathsize,
+    MlMathvariant,
+    MlMaxsize,
+    MlMinsize,
+    MlMovablelimits,
+    MlRspace,
+    MlSeparator,
+    MlStretchy,
+    MlSymmetric
+};
+
+/* Possible values of mathml attributes */
+/*************************************************************************************************/
+
+enum class SmMlAttributeValueEmpty : uint_fast8_t
+{
+    MlEmpty = 0x00
+};
+
+enum class SmMlAttributeValueAccent : uint_fast8_t
+{
+    MlFalse = 0x00,
+    MlTrue = 0x01
+};
+
+enum class SmMlAttributeValueDir : uint_fast8_t
+{
+    MlLtr = 0x00,
+    MlRtl = 0x01
+};
+
+enum class SmMlAttributeValueDisplaystyle : uint_fast8_t
+{
+    MlFalse = 0x00,
+    MlTrue = 0x01
+};
+
+enum class SmMlAttributeValueFence : uint_fast8_t
+{
+    MlFalse = 0x00,
+    MlTrue = 0x01
+};
+
+enum class SmMlAttributeValueForm : uint_fast8_t
+{
+    MlPrefix = 0x01,
+    MlInfix = 0x02,
+    MlPosfix = 0x04
+};
+
+enum class SmMlAttributeValueHref : uint_fast8_t
+{
+    NMlEmpty = 0x00,
+    NMlValid = 0x01
+};
+
+enum class SmMlAttributeValueLspace : uint_fast8_t
+{
+    NMlEmpty = 0x00
+};
+
+enum class SmMlAttributeValueMathbackground : uint_fast32_t
+{
+    MlTransparent = 0x00,
+    MlRgb = 0x01
+};
+
+enum class SmMlAttributeValueMathcolor : uint_fast8_t
+{
+    MlDefault = 0x00,
+    MlRgb = 0x01
+};
+
+enum class SmMlAttributeValueMathsize : uint_fast8_t
+{
+    NMlEmpty = 0x00,
+};
+
+enum class SmMlAttributeValueMathvariant : uint_fast16_t
+{
+    normal = 0x000,
+    bold = 0x001,
+    italic = 0x002,
+    double_struck = 0x004,
+    script = 0x008,
+    fraktur = 0x010,
+    sans_serif = 0x020,
+    monospace = 0x040,
+    bold_italic = 0x001 | 0x002,
+    bold_fraktur = 0x001 | 0x010,
+    bold_script = 0x001 | 0x008,
+    bold_sans_serif = 0x001 | 0x020,
+    sans_serif_italic = 0x002 | 0x20,
+    sans_serif_bold_italic = 0x001 | 0x002 | 0x020,
+    // Non english
+    initial = 0x080,
+    tailed = 0x100,
+    looped = 0x200,
+    stretched = 0x400
+};
+
+enum class SmMlAttributeValueMaxsize : uint_fast8_t
+{
+    MlInfinity = 0x00,
+    MlFinite = 0x01
+};
+
+/*
+ * Specifies whether attached under- and overscripts move to sub- and superscript positions when displaystyle is false.
+ * Source: https://developer.mozilla.org/en-US/docs/Web/MathML/Element/mo
+ */
+enum class SmMlAttributeValueMovablelimits : uint_fast8_t
+{
+    MlFalse = 0x00,
+    MlTrue = 0x01
+};
+
+enum class SmMlAttributeValueRspace : uint_fast8_t
+{
+    NMlEmpty = 0x00
+};
+
+enum class SmMlAttributeValueSeparator : uint_fast8_t
+{
+    MlFalse = 0x00,
+    MlTrue = 0x01
+};
+
+enum class SmMlAttributeValueStretchy : uint_fast8_t
+{
+    MlFalse = 0x00,
+    MlTrue = 0x01
+};
+
+enum class SmMlAttributeValueSymmetric : uint_fast8_t
+{
+    MlFalse = 0x00,
+    MlTrue = 0x01
+};
+
+/* Structures for all possible attributes */
+/*************************************************************************************************/
+
+struct SmMlAccent
+{
+    SmMlAttributeValueAccent m_aAccent;
+};
+
+struct SmMlDir
+{
+    SmMlAttributeValueDir m_aDir;
+};
+
+struct SmMlDisplaystyle
+{
+    SmMlAttributeValueDisplaystyle m_aDisplaystyle;
+};
+
+struct SmMlFence
+{
+    SmMlAttributeValueFence m_aFence;
+};
+
+struct SmMlForm
+{
+    SmMlAttributeValueForm m_aForm;
+};
+
+struct SmMlHref
+{
+    SmMlAttributeValueHref m_aHref;
+    OUString* m_aLnk;
+};
+
+struct SmMlLspace
+{
+    SmLengthValue m_aLengthValue;
+};
+
+struct SmMlMathbackground
+{
+    SmMlAttributeValueMathbackground m_aMathbackground;
+    Color m_aCol;
+};
+
+struct SmMlMathcolor
+{
+    SmMlAttributeValueMathcolor m_aMathcolor;
+    Color m_aCol;
+};
+
+struct SmMlMathsize
+{
+    SmLengthValue m_aLengthValue;
+};
+
+struct SmMlMathvariant
+{
+    SmMlAttributeValueMathvariant m_aMathvariant;
+};
+
+struct SmMlMaxsize
+{
+    SmMlAttributeValueMaxsize m_aMaxsize;
+    SmLengthValue m_aLengthValue;
+};
+
+struct SmMlMinsize
+{
+    SmLengthValue m_aLengthValue;
+};
+
+struct SmMlMovablelimits
+{
+    SmMlAttributeValueMovablelimits m_aMovablelimits;
+};
+
+struct SmMlRspace
+{
+    SmLengthValue m_aLengthValue;
+};
+
+struct SmMlSeparator
+{
+    SmMlAttributeValueSeparator m_aSeparator;
+};
+
+struct SmMlStretchy
+{
+    SmMlAttributeValueStretchy m_aStretchy;
+};
+
+struct SmMlSymmetric
+{
+    SmMlAttributeValueSymmetric m_aSymmetric;
+};
+
+/* order attributes */
+/*************************************************************************************************/
+
+struct SmMlAttributePos
+{
+    SmMlAttributeValueType m_aAttributeValueType;
+    uint_fast8_t m_nPos;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/mathml/element.hxx b/starmath/inc/mathml/element.hxx
new file mode 100644
index 000000000..ce5d7073b
--- /dev/null
+++ b/starmath/inc/mathml/element.hxx
@@ -0,0 +1,300 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "attribute.hxx"
+#include <rect.hxx>
+
+#include <editeng/editdata.hxx>
+
+class SmMlElement final : public SmRect
+{
+    /* Technical stuff */
+
+public:
+    SmMlElement()
+        : m_aElementType(SmMlElementType::NMlEmpty)
+        , m_aText(u"")
+        , m_aESelection(0, 0, 0, 0)
+        , m_aAttributeList(0)
+        , m_aAttributePosList(0)
+        , m_aSubElements(0)
+        , m_aParentElement(nullptr)
+        , m_nSubElementId(0)
+    {
+        SmImplAttributeType();
+    };
+    /* Mathml stuff */
+
+public:
+    SmMlElement(SmMlElementType aElementType)
+        : m_aElementType(aElementType)
+        , m_aText(u"\u00B6")
+        , m_aESelection(0, 0, 0, 0)
+        , m_aSubElements(0)
+        , m_aParentElement(nullptr)
+        , m_nSubElementId(0)
+    {
+        SmImplAttributeType();
+    };
+
+public:
+    SmMlElement(const SmMlElement& aElement)
+        : SmRect(static_cast<SmRect>(aElement))
+        , m_aElementType(aElement.getMlElementType())
+        , m_aText(aElement.getText())
+        , m_aESelection(aElement.getESelectionReference())
+        , m_aSubElements(0)
+        , m_aParentElement(nullptr)
+        , m_nSubElementId(aElement.getSubElementId())
+    {
+        m_aAttributePosList = std::vector<SmMlAttributePos>(aElement.getAttributeCount());
+        for (size_t i = 0; i < aElement.getAttributeCount(); ++i)
+            setAttributeForce(i, aElement.getAttributePointer(i));
+    };
+
+private:
+    // Type of element
+    SmMlElementType m_aElementType;
+
+    // Element text
+    OUString m_aText;
+
+    // Location in source code
+    ESelection m_aESelection;
+
+    // Attribute list
+    std::vector<SmMlAttribute> m_aAttributeList;
+
+    // Attribute position list
+    std::vector<SmMlAttributePos> m_aAttributePosList;
+
+    // Sub elements
+    std::vector<SmMlElement*> m_aSubElements;
+
+    // Parent element
+    SmMlElement* m_aParentElement;
+
+    // Child id, so it is possible to iterate
+    size_t m_nSubElementId;
+
+private:
+    void SmImplAttributeType();
+
+public: // Element type
+    /**
+      * Returns the mathml element type
+      * @return mathml element type
+      */
+    SmMlElementType getMlElementType() const { return m_aElementType; };
+
+    /**
+      * Check if the mathml element is of a given type
+      * @param aElementType
+      * @return is mathml element type
+      */
+    bool isMlElementType(SmMlElementType aElementType) const
+    {
+        return m_aElementType == aElementType;
+    };
+
+public: // location in the source
+    /**
+      * Returns the location in the source code of the node type
+      * @return selection
+      */
+    const ESelection& getESelection() const { return m_aESelection; };
+
+    /**
+      * Returns the location in the source code of the node type
+      * @return selection
+      */
+    const ESelection& getESelectionReference() const { return m_aESelection; };
+
+    /**
+      * Sets the location in the source code of the node type
+      * @param aESelection
+      */
+    void setESelection(ESelection aESelection) { m_aESelection = aESelection; };
+
+    /**
+      * Gets the line in the text where the node is located.
+      * It is used to do the visual <-> text correspondence.
+      * @return line
+      */
+    sal_Int32 GetSourceCodeRow() const { return m_aESelection.nStartPara; }
+
+    /**
+      * Gets the column of the line in the text where the node is located.
+      * It is used to do the visual <-> text correspondence.
+      * @return column
+      */
+    sal_Int32 GetSourceCodeColumn() const { return m_aESelection.nStartPos; }
+
+public: // attributes
+    /**
+      * Returns the amount of available attributes
+      * @return attribute count
+      */
+    size_t getAttributeCount() const { return m_aAttributeList.size(); };
+
+    /**
+      * Gets a given attribute.
+      * If no available returns empty attribute.
+      * @param nAttributePos
+      * @return given attribute.
+      */
+    SmMlAttribute getAttribute(size_t nAttributePos) const
+    {
+        return nAttributePos < m_aAttributeList.size() ? m_aAttributeList[nAttributePos]
+                                                       : SmMlAttribute();
+    }
+
+    /**
+      * Gets a given attribute.
+      * If no available returns empty attribute.
+      * @param nAttributePos
+      * @return given attribute.
+      */
+    SmMlAttribute getAttribute(SmMlAttributeValueType aAttributeType) const;
+
+    /**
+      * Sets a given attribute.
+      * If no available does nothing.
+      * @param nAttributePos
+      * @return given attribute.
+      */
+    void setAttribute(const SmMlAttribute* aAttribute);
+
+    /**
+      * Set's a given attribute.
+      * If no available does nothing.
+      * @param nAttributePos
+      * @return given attribute.
+      */
+    void setAttribute(const SmMlAttribute& aAttribute) { setAttribute(&aAttribute); }
+
+    /** Checks if an attribute has been manually set
+    * @param aElementType
+    */
+    bool isAttributeSet(SmMlAttributeValueType aAttributeType) const;
+
+private: // attributes
+    /**
+      * Gets a given attribute.
+      * If no available returns empty attribute.
+      * @param nAttributePos
+      * @return given attribute.
+      */
+    const SmMlAttribute* getAttributePointer(size_t nAttributePos) const
+    {
+        return nAttributePos < m_aAttributeList.size() ? &m_aAttributeList[nAttributePos] : nullptr;
+    }
+
+    /**
+      * Sets a given attribute.
+      * If no available undefined behaviour.
+      * @param nAttributePos
+      * @param aAttribute
+      * @return given attribute.
+      */
+    void setAttributeForce(size_t nAttributePos, const SmMlAttribute* aAttribute)
+    {
+        m_aAttributeList[nAttributePos].setMlAttributeValue(aAttribute);
+    }
+
+public: // sub elements
+    /**
+      * Returns the sub elements count
+      * @return sub elements count
+      */
+    size_t getSubElementsCount() const { return m_aSubElements.size(); };
+
+    /**
+      * Returns a given sub element
+      * @param nPos
+      * @return sub elements
+      */
+    SmMlElement* getSubElement(size_t nPos)
+    {
+        return nPos < m_aSubElements.size() ? m_aSubElements[nPos] : nullptr;
+    };
+
+    /**
+      * Returns a given sub element
+      * @param nPos
+      * @return sub elements
+      */
+    const SmMlElement* getSubElement(size_t nPos) const
+    {
+        return nPos < m_aSubElements.size() ? m_aSubElements[nPos] : nullptr;
+    };
+
+    /**
+      * Sets a given sub element
+      * @param nPos
+      * @param aElement
+      */
+    void setSubElement(size_t nPos, SmMlElement* aElement);
+
+    /**
+      * Gets subelement id
+      */
+    size_t getSubElementId() const { return m_nSubElementId; }
+
+    /**
+      * Sets subelement id
+      * @param nSubElementId
+      */
+    void setSubElementId(size_t nSubElementId) { m_nSubElementId = nSubElementId; }
+
+public: // parent elements
+    /**
+      * Returns the parent element
+      * @return parent element
+      */
+    SmMlElement* getParentElement() { return m_aParentElement; };
+
+    /**
+      * Returns the parent element
+      * @return parent element
+      */
+    const SmMlElement* getParentElement() const { return m_aParentElement; };
+
+    /**
+      * Sets the parent element
+      * No allocation / free is done.
+      * @param aParentElement
+      */
+    void setParentElement(SmMlElement* aParentElement) { m_aParentElement = aParentElement; };
+
+public: // text elements
+    /**
+      * Returns the element text
+      */
+    const OUString& getText() const { return m_aText; };
+
+    /**
+      * Returns the element text
+      */
+    void setText(OUString aText) { m_aText = aText; };
+};
+
+namespace starmathdatabase
+{
+/**
+  * Generates an attribute vector of default values from an attribute position list.
+  * @param aAttributePosList
+  * @return attribute vector
+  */
+std::vector<SmMlAttribute> makeMlAttributeList(std::vector<SmMlAttributePos> aAttributePosList);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/mathml/export.hxx b/starmath/inc/mathml/export.hxx
new file mode 100644
index 000000000..0bd83e6ef
--- /dev/null
+++ b/starmath/inc/mathml/export.hxx
@@ -0,0 +1,241 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+// Our mathml
+#include "element.hxx"
+
+// Xml tools
+#include <xmloff/xmlnamespace.hxx>
+#include <xmloff/xmlexp.hxx>
+#include <xmloff/xmltoken.hxx>
+
+// Extras
+#include <com/sun/star/io/XOutputStream.hpp>
+
+class SfxMedium;
+class SmDocShell;
+
+class SmMLExportWrapper
+{
+private:
+    // Model
+    css::uno::Reference<css::frame::XModel> m_xModel;
+    // Save as a flat document ( mml, fodf ... )
+    bool m_bFlat;
+    // Use html / mathml entities
+    bool m_bUseHTMLMLEntities;
+    // Mathmml tree to parse
+    SmMlElement* m_pElementTree;
+    // Export xmlns tag
+    bool m_bUseExportTag;
+
+public:
+    /** Set's the writer to export to flat document
+     */
+    void setFlat(bool bFlat) { m_bFlat = bFlat; }
+
+    /** Checks if the writer is set to export to flat document
+     */
+    bool getFlat() const { return m_bFlat; }
+
+    /** Checks the use of HTML / MathML entities such as &infinity;
+     */
+    void setUseHTMLMLEntities(bool bUseHTMLMLEntities)
+    {
+        m_bUseHTMLMLEntities = bUseHTMLMLEntities;
+    }
+
+    /** Activates the use of HTML / MathML entities such as &infinity;
+     */
+    bool getUseHTMLMLEntities() const { return m_bUseHTMLMLEntities; }
+
+    /** Get's if xmlns field is added
+     */
+    bool getUseExportTag() const { return m_bUseExportTag; }
+
+    /** Set's if xmlns field is added
+     */
+    void setUseExportTag(bool bUseExportTag) { m_bUseExportTag = bUseExportTag; }
+
+public:
+    explicit SmMLExportWrapper(css::uno::Reference<css::frame::XModel> const& rRef)
+        : m_xModel(rRef)
+        , m_bFlat(true)
+        , m_bUseHTMLMLEntities(false)
+        , m_pElementTree(nullptr)
+        , m_bUseExportTag(false)
+    {
+    }
+
+    /** Export to an archive
+      */
+    bool Export(SfxMedium& rMedium);
+
+    /** Just export a mathml tree
+      */
+    OUString Export(SmMlElement* pElementTree);
+
+    // Making this protected we can keep it from getting trash as input
+protected:
+    /** export through an XML exporter component (output stream version)
+        */
+    bool WriteThroughComponentOS(const css::uno::Reference<css::io::XOutputStream>& xOutputStream,
+                                 const css::uno::Reference<css::lang::XComponent>& xComponent,
+                                 css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                                 css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                                 const char16_t* pComponentName, int_fast16_t nSyntaxVersion);
+
+    /** export through an XML exporter component (storage version)
+      */
+    bool WriteThroughComponentS(const css::uno::Reference<css::embed::XStorage>& xStor,
+                                const css::uno::Reference<css::lang::XComponent>& xComponent,
+                                const char16_t* pStreamName,
+                                css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                                css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                                const char16_t* pComponentName, int_fast16_t nSyntaxVersion);
+
+    /** export through an XML exporter component (memory stream version)
+      */
+    OUString
+    WriteThroughComponentMS(const css::uno::Reference<css::lang::XComponent>& xComponent,
+                            css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                            css::uno::Reference<css::beans::XPropertySet> const& rPropSet);
+};
+
+class SmMLExport final : public SvXMLExport
+{
+private:
+    SmMlElement* m_pElementTree;
+    bool m_bSuccess;
+    bool m_bUseExportTag;
+
+public:
+    /** Everything was allright
+     */
+    bool getSuccess() const { return m_bSuccess; }
+
+    /** Get's if xmlns field is added
+     */
+    bool getUseExportTag() const { return m_bUseExportTag; }
+
+    /** Set's if xmlns field is added
+     */
+    void setUseExportTag(bool bUseExportTag) { m_bUseExportTag = bUseExportTag; }
+
+    /** Set's the element tree to be exported.
+      * If it isn't nullptr the this will be exported instead of the document
+     */
+    void setElementTree(SmMlElement* pElementTree) { m_pElementTree = pElementTree; }
+
+private:
+    /** Adds an element
+      */
+    SvXMLElementExport* createElementExport(xmloff::token::XMLTokenEnum nElement)
+    {
+        // We can't afford to ignore white spaces. They are part of the code.
+        return new SvXMLElementExport(*this, XML_NAMESPACE_MATH, nElement, false, false);
+    }
+
+    /** Adds an attribute
+      */
+    void addAttribute(xmloff::token::XMLTokenEnum pAttribute,
+                      xmloff::token::XMLTokenEnum pAttributeValue)
+    {
+        AddAttribute(XML_NAMESPACE_MATH, pAttribute, pAttributeValue);
+    }
+
+    /** Adds an attribute
+      */
+    void addAttribute(xmloff::token::XMLTokenEnum pAttribute, const OUString& pAttributeValue)
+    {
+        AddAttribute(XML_NAMESPACE_MATH, pAttribute, pAttributeValue);
+    }
+
+public:
+    /** Exports an attribute of type "length"
+     */
+    void exportMlAttributeLength(xmloff::token::XMLTokenEnum pAttribute,
+                                 const SmLengthValue& aLengthValue);
+
+    /** Exports attributes of an element
+      */
+    void exportMlAttributes(const SmMlElement* pMlElement);
+
+    /** Exports an element and all it's attributes
+      */
+    SvXMLElementExport* exportMlElement(const SmMlElement* pMlElement);
+
+    /** Exports an element tree
+      */
+    void exportMlElementTree();
+
+    /** Handles an error on the mathml structure
+     */
+    void declareMlError();
+
+public:
+    /** Constructor
+     */
+    SmMLExport(const css::uno::Reference<css::uno::XComponentContext>& rContext,
+               OUString const& implementationName, SvXMLExportFlags nExportFlags);
+
+private:
+    /** Get's document shell
+     */
+    SmDocShell* getSmDocShell();
+
+public:
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething(const css::uno::Sequence<sal_Int8>& rId) override;
+    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId() noexcept;
+
+    /** Exports auto styles
+     * However math doesn't have any
+     */
+    void ExportAutoStyles_() override {}
+
+    /** Exports master styles
+     * However math doesn't have any
+     */
+    void ExportMasterStyles_() override {}
+
+    /** Exports formula
+     * Handler used from exportDoc
+     */
+    void ExportContent_() override { exportMlElementTree(); };
+
+    /** Exports the document
+     * If m_pElementTree isn't null then exports m_pElementTree
+    */
+    ErrCode exportDoc(enum ::xmloff::token::XMLTokenEnum eClass
+                      = ::xmloff::token::XML_TOKEN_INVALID) override;
+
+    /** Get's view settings and prepares them to export
+     */
+    virtual void GetViewSettings(css::uno::Sequence<css::beans::PropertyValue>& aProps) override;
+
+    /** Get's configuration settings and prepares them to export
+     */
+    virtual void
+    GetConfigurationSettings(css::uno::Sequence<css::beans::PropertyValue>& aProps) override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/mathml/import.hxx b/starmath/inc/mathml/import.hxx
new file mode 100644
index 000000000..d98cc8cf4
--- /dev/null
+++ b/starmath/inc/mathml/import.hxx
@@ -0,0 +1,150 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+// Our mathml
+#include "element.hxx"
+
+// XML tools
+#include <vcl/errcode.hxx>
+#include <xmloff/xmlimp.hxx>
+
+// Extras
+
+class SfxMedium;
+class SmDocShell;
+class SmMLImport;
+
+class SmMLImportWrapper
+{
+    css::uno::Reference<css::frame::XModel> m_xModel;
+    SmDocShell* m_pDocShell;
+    SmMLImport* m_pMlImport;
+
+private:
+    // Use customized entities
+
+public:
+    /** Get the element tree when parsed from text
+    */
+    SmMlElement* getElementTree();
+
+public:
+    /** Constructor
+     */
+    explicit SmMLImportWrapper(css::uno::Reference<css::frame::XModel> const& rRef)
+        : m_xModel(rRef)
+        , m_pDocShell(nullptr)
+        , m_pMlImport(nullptr)
+    {
+    }
+
+    /** Imports the mathml
+    */
+    ErrCode Import(SfxMedium& rMedium);
+
+    /** Imports the mathml
+    */
+    ErrCode Import(std::u16string_view aSource);
+
+    /** read a component from input stream
+     */
+    ErrCode
+    ReadThroughComponentIS(const css::uno::Reference<css::io::XInputStream>& xInputStream,
+                           const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                           css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                           css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                           const char16_t* pFilterName, bool bEncrypted,
+                           int_fast16_t nSyntaxVersion);
+
+    /** read a component from storage
+     */
+    ErrCode ReadThroughComponentS(const css::uno::Reference<css::embed::XStorage>& xStorage,
+                                  const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                                  const char16_t* pStreamName,
+                                  css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                                  css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                                  const char16_t* pFilterName, int_fast16_t nSyntaxVersion);
+
+    /** read a component from text
+     */
+    ErrCode
+    ReadThroughComponentMS(std::u16string_view aText,
+                           const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                           css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                           css::uno::Reference<css::beans::XPropertySet> const& rPropSet);
+};
+
+class SmMLImport final : public SvXMLImport
+{
+private:
+    SmMlElement* m_pElementTree = new SmMlElement(SmMlElementType::NMlEmpty);
+    bool m_bSuccess;
+    size_t m_nSmSyntaxVersion;
+
+public:
+    /** Gets parsed element tree
+    */
+    SmMlElement* getElementTree() { return m_pElementTree; }
+
+    /** Checks out if parse was a success
+     */
+    bool getSuccess() const { return m_bSuccess; }
+
+public:
+    /** Handles an error on the mathml structure
+     */
+    void declareMlError();
+
+public:
+    /** Constructor
+    */
+    SmMLImport(const css::uno::Reference<css::uno::XComponentContext>& rContext,
+               OUString const& implementationName, SvXMLImportFlags nImportFlags);
+
+    /** Destructor
+    */
+    virtual ~SmMLImport() noexcept override { cleanup(); };
+
+public:
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething(const css::uno::Sequence<sal_Int8>& rId) override;
+    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId() noexcept;
+
+    /** End the document
+    */
+    void SAL_CALL endDocument() override;
+
+    /** Create a fast context
+    */
+    SvXMLImportContext* CreateFastContext(
+        sal_Int32 nElement,
+        const css::uno::Reference<css::xml::sax::XFastAttributeList>& xAttrList) override;
+
+    /** Imports view settings formula
+    */
+    virtual void
+    SetViewSettings(const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+
+    /** Imports configurations settings formula
+    */
+    virtual void SetConfigurationSettings(
+        const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+
+    /** Set syntax version
+    */
+    void SetSmSyntaxVersion(sal_uInt16 nSmSyntaxVersion) { m_nSmSyntaxVersion = nSmSyntaxVersion; }
+
+    /** Get syntax version
+    */
+    sal_uInt16 GetSmSyntaxVersion() const { return m_nSmSyntaxVersion; }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/mathml/iterator.hxx b/starmath/inc/mathml/iterator.hxx
new file mode 100644
index 000000000..559829ce8
--- /dev/null
+++ b/starmath/inc/mathml/iterator.hxx
@@ -0,0 +1,125 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "element.hxx"
+
+/** The purpose of this iterator is to be able to iterate threw an infinite element tree
+  * infinite -> as much as your memory can hold
+  * No call-backs that will end up in out of stack
+  */
+
+namespace mathml
+{
+template <typename runType>
+void SmMlIteratorBottomToTop(SmMlElement* pMlElementTree, runType aRunType, void* aData)
+{
+    if (pMlElementTree == nullptr)
+        return;
+
+    SmMlElement* pCurrent;
+
+    // Fetch the deepest element
+    pCurrent = pMlElementTree;
+    while (pCurrent->getSubElementsCount() != 0)
+    {
+        if (pCurrent->getSubElement(0) == nullptr)
+            break;
+        pCurrent = pCurrent->getSubElement(0);
+    }
+
+    do
+    {
+        // Fetch next element
+        size_t nId = pCurrent->getSubElementId();
+        // We are back to the top.
+        if (pCurrent->getParentElement() == nullptr)
+            break;
+        // If this was the last, then turn back to the parent
+        if (nId + 1 == pCurrent->getParentElement()->getSubElementsCount())
+            pCurrent = pCurrent->getParentElement();
+        else // If not, next is the one near it
+        {
+            // It could have sub elements
+            if (pCurrent->getParentElement()->getSubElement(nId + 1) == nullptr)
+                break;
+            pCurrent = pCurrent->getParentElement()->getSubElement(nId + 1);
+            // Fetch the deepest element
+            while (pCurrent->getSubElementsCount() != 0)
+            {
+                if (pCurrent->getSubElement(0) == nullptr)
+                    break;
+                pCurrent = pCurrent->getSubElement(0);
+            }
+        }
+
+        // Just in case of, but should be forbidden
+        if (pCurrent != nullptr)
+            aRunType(pCurrent, aData);
+
+    } while (pCurrent != nullptr);
+}
+
+template <typename runType>
+void SmMlIteratorTopToBottom(SmMlElement* pMlElementTree, runType aRunType, void* aData)
+{
+    if (pMlElementTree == nullptr)
+        return;
+
+    SmMlElement* pCurrent;
+
+    // Fetch the deepest element
+    pCurrent = pMlElementTree;
+    aRunType(pCurrent, aData);
+    while (pCurrent->getSubElementsCount() != 0)
+    {
+        if (pCurrent->getSubElement(0) == nullptr)
+            break;
+        pCurrent = pCurrent->getSubElement(0);
+        aRunType(pCurrent, aData);
+    }
+
+    do
+    {
+        // Fetch next element
+        size_t nId = pCurrent->getSubElementId();
+        // We are back to the top.
+        if (pCurrent->getParentElement() == nullptr)
+            break;
+        // If this was the last, then turn back to the parent
+        if (nId + 1 == pCurrent->getParentElement()->getSubElementsCount())
+            pCurrent = pCurrent->getParentElement();
+        else // If not, next is the one near it
+        {
+            // It could have sub elements
+            if (pCurrent->getParentElement()->getSubElement(nId + 1) == nullptr)
+                break;
+            pCurrent = pCurrent->getParentElement()->getSubElement(nId + 1);
+            aRunType(pCurrent, aData);
+            // Fetch the deepest element
+            while (pCurrent->getSubElementsCount() != 0)
+            {
+                if (pCurrent->getSubElement(0) == nullptr)
+                    break;
+                pCurrent = pCurrent->getSubElement(0);
+                aRunType(pCurrent, aData);
+            }
+        }
+
+    } while (pCurrent != nullptr);
+}
+
+void SmMlIteratorFree(SmMlElement* pMlElementTree);
+
+SmMlElement* SmMlIteratorCopy(SmMlElement* pMlElementTree);
+
+} // end namespace mathml
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/mathml/mathmlMo.hxx b/starmath/inc/mathml/mathmlMo.hxx
new file mode 100644
index 000000000..10a8b0001
--- /dev/null
+++ b/starmath/inc/mathml/mathmlMo.hxx
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/*
+ Warning: The SvXMLElementExport helper class creates the beginning and
+ closing tags of xml elements in its constructor and destructor, so there's
+ hidden stuff going on, on occasion the ordering of these classes declarations
+ may be significant
+*/
+
+#pragma once
+
+#include <sal/types.h>
+#include <rtl/ustring.hxx>
+#include <vector>
+
+// https://www.w3.org/TR/MathML3/appendixc.html
+
+enum class moOpDP : sal_uInt16
+{ // moOperatorDataProperty
+    nonedp = 0x0000,
+    accent = 0x0001,
+    fence = 0x0002,
+    stretchy = 0x0004,
+    symmetric = 0x0008,
+    separator = 0x0010,
+    linebreakstyleAfter = 0x0020,
+    largeop = 0x0080,
+    movablelimits = 0x0100,
+    starmathCustom = 0x0200,
+    starmathCustomMo = 0x0400,
+    stretchyfence = 0x0006,
+    movablelargeop = 0x0180
+};
+
+enum class moOpDF : sal_uInt16
+{ // moOperatorDataForm
+    nonedf = 0x0000,
+    prefix = 0x0001,
+    infix = 0x0002,
+    postfix = 0x0004,
+    prepostfix = 0x0005
+};
+
+struct moOperatorData
+{
+    OUString m_motxt;
+    moOpDF m_form;
+    sal_uInt16 m_priority;
+    sal_uInt16 m_lspace;
+    sal_uInt16 m_rspace;
+    moOpDP m_properties;
+
+    moOperatorData(OUString motxt, moOpDF form, sal_uInt16 priority, sal_uInt16 lspace,
+                   sal_uInt16 rspace, moOpDP properties)
+        : m_motxt(motxt)
+        , m_form(form)
+        , m_priority(priority)
+        , m_lspace(lspace)
+        , m_rspace(rspace)
+        , m_properties(properties)
+    {
+    }
+};
+
+inline moOpDF operator|(moOpDF a, moOpDF b)
+{
+    return static_cast<moOpDF>(static_cast<sal_uInt16>(a) | static_cast<sal_uInt16>(b));
+}
+
+inline moOpDF operator&(moOpDF a, moOpDF b)
+{
+    return static_cast<moOpDF>(static_cast<sal_uInt16>(a) & static_cast<sal_uInt16>(b));
+}
+
+inline moOpDP operator|(moOpDP a, moOpDP b)
+{
+    return static_cast<moOpDP>(static_cast<sal_uInt16>(a) | static_cast<sal_uInt16>(b));
+}
+
+inline moOpDP operator&(moOpDP a, moOpDP b)
+{
+    return static_cast<moOpDP>(static_cast<sal_uInt16>(a) & static_cast<sal_uInt16>(b));
+}
+
+namespace starmathdatabase
+{
+constexpr size_t MATHML_MO_COUNT = 1100;
+
+extern std::vector<moOperatorData> moOperatorDataDictionary;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/mathml/mathmlattr.hxx b/starmath/inc/mathml/mathmlattr.hxx
new file mode 100644
index 000000000..b7d1160bb
--- /dev/null
+++ b/starmath/inc/mathml/mathmlattr.hxx
@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <rtl/ustring.hxx>
+#include <tools/fract.hxx>
+
+// MathML 3: 2.1.5.1 Syntax notation used in the MathML specification
+// <https://www.w3.org/TR/MathML/chapter2.html#id.2.1.5.1>
+// MathML 2: 2.4.4.2 Attributes with units
+// <https://www.w3.org/TR/MathML2/chapter2.html#fund.attval>
+// MathML 3: 2.1.5.2 Length Valued Attributes
+// <https://www.w3.org/TR/MathML/chapter2.html#fund.units>
+
+enum class MathMLLengthUnit
+{
+    None,
+    Em,
+    Ex,
+    Px,
+    In,
+    Cm,
+    Mm,
+    Pt,
+    Pc,
+    Percent
+};
+
+struct MathMLAttributeLengthValue
+{
+    Fraction aNumber;
+    MathMLLengthUnit eUnit;
+    MathMLAttributeLengthValue()
+        : eUnit(MathMLLengthUnit::None)
+    {
+    }
+};
+
+bool ParseMathMLAttributeLengthValue(std::u16string_view rStr, MathMLAttributeLengthValue& rV);
+
+// MathML 3: 3.2.2 Mathematics style attributes common to token elements
+// <https://www.w3.org/TR/MathML3/chapter3.html#presm.commatt>
+
+enum class MathMLMathvariantValue
+{
+    Normal,
+    Bold,
+    Italic,
+    BoldItalic,
+    DoubleStruck,
+    BoldFraktur,
+    Script,
+    BoldScript,
+    Fraktur,
+    SansSerif,
+    BoldSansSerif,
+    SansSerifItalic,
+    SansSerifBoldItalic,
+    Monospace,
+    Initial,
+    Tailed,
+    Looped,
+    Stretched
+};
+
+bool GetMathMLMathvariantValue(const OUString& rStr, MathMLMathvariantValue& rV);
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/mathml/mathmlexport.hxx b/starmath/inc/mathml/mathmlexport.hxx
new file mode 100644
index 000000000..b7c054440
--- /dev/null
+++ b/starmath/inc/mathml/mathmlexport.hxx
@@ -0,0 +1,128 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <xmloff/xmlexp.hxx>
+#include <xmloff/xmltoken.hxx>
+
+class SfxMedium;
+class SmNode;
+class SmVerticalBraceNode;
+namespace com::sun::star
+{
+namespace io
+{
+class XOutputStream;
+}
+namespace beans
+{
+class XPropertySet;
+}
+}
+
+class SmXMLExportWrapper
+{
+    css::uno::Reference<css::frame::XModel> xModel;
+    bool bFlat; //set true for export to flat .mml, set false for
+        //export to a .sxm (or whatever) package
+
+private:
+    // Use customized entities
+    bool m_bUseHTMLMLEntities;
+
+public:
+    explicit SmXMLExportWrapper(css::uno::Reference<css::frame::XModel> const& rRef)
+        : xModel(rRef)
+        , bFlat(true)
+        , m_bUseHTMLMLEntities(false)
+    {
+    }
+
+    bool Export(SfxMedium& rMedium);
+    void SetFlat(bool bIn) { bFlat = bIn; }
+
+    bool IsUseHTMLMLEntities() const { return m_bUseHTMLMLEntities; }
+    void SetUseHTMLMLEntities(bool bUseHTMLMLEntities)
+    {
+        m_bUseHTMLMLEntities = bUseHTMLMLEntities;
+    }
+
+    bool WriteThroughComponent(const css::uno::Reference<css::io::XOutputStream>& xOutputStream,
+                               const css::uno::Reference<css::lang::XComponent>& xComponent,
+                               css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                               css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                               const char* pComponentName);
+
+    bool WriteThroughComponent(const css::uno::Reference<css::embed::XStorage>& xStor,
+                               const css::uno::Reference<css::lang::XComponent>& xComponent,
+                               const char* pStreamName,
+                               css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                               css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                               const char* pComponentName);
+};
+
+class SmXMLExport final : public SvXMLExport
+{
+    const SmNode* pTree;
+    OUString aText;
+    bool bSuccess;
+
+    void ExportNodes(const SmNode* pNode, int nLevel);
+    void ExportTable(const SmNode* pNode, int nLevel);
+    void ExportLine(const SmNode* pNode, int nLevel);
+    void ExportExpression(const SmNode* pNode, int nLevel, bool bNoMrowContainer = false);
+    void ExportText(const SmNode* pNode);
+    void ExportMath(const SmNode* pNode);
+    void ExportBinaryHorizontal(const SmNode* pNode, int nLevel);
+    void ExportUnaryHorizontal(const SmNode* pNode, int nLevel);
+    void ExportBrace(const SmNode* pNode, int nLevel);
+    void ExportBinaryVertical(const SmNode* pNode, int nLevel);
+    void ExportBinaryDiagonal(const SmNode* pNode, int nLevel);
+    void ExportSubSupScript(const SmNode* pNode, int nLevel);
+    void ExportRoot(const SmNode* pNode, int nLevel);
+    void ExportOperator(const SmNode* pNode, int nLevel);
+    void ExportAttributes(const SmNode* pNode, int nLevel);
+    void ExportFont(const SmNode* pNode, int nLevel);
+    void ExportVerticalBrace(const SmVerticalBraceNode* pNode, int nLevel);
+    void ExportMatrix(const SmNode* pNode, int nLevel);
+    void ExportBlank(const SmNode* pNode);
+
+public:
+    SmXMLExport(const css::uno::Reference<css::uno::XComponentContext>& rContext,
+                OUString const& implementationName, SvXMLExportFlags nExportFlags);
+
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething(const css::uno::Sequence<sal_Int8>& rId) override;
+    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId() noexcept;
+
+    void ExportAutoStyles_() override {}
+    void ExportMasterStyles_() override {}
+    void ExportContent_() override;
+    ErrCode exportDoc(enum ::xmloff::token::XMLTokenEnum eClass
+                      = ::xmloff::token::XML_TOKEN_INVALID) override;
+
+    virtual void GetViewSettings(css::uno::Sequence<css::beans::PropertyValue>& aProps) override;
+    virtual void
+    GetConfigurationSettings(css::uno::Sequence<css::beans::PropertyValue>& aProps) override;
+
+    bool GetSuccess() const { return bSuccess; }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/mathml/mathmlimport.hxx b/starmath/inc/mathml/mathmlimport.hxx
new file mode 100644
index 000000000..0a963a1b0
--- /dev/null
+++ b/starmath/inc/mathml/mathmlimport.hxx
@@ -0,0 +1,114 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <xmloff/xmlimp.hxx>
+#include <vcl/errcode.hxx>
+
+#include <deque>
+
+class SmNode;
+class SfxMedium;
+namespace com::sun::star
+{
+namespace beans
+{
+class XPropertySet;
+}
+}
+
+typedef std::deque<std::unique_ptr<SmNode>> SmNodeStack;
+
+class SmXMLImportWrapper
+{
+    css::uno::Reference<css::frame::XModel> xModel;
+
+private:
+    // Use customized entities
+    bool m_bUseHTMLMLEntities;
+
+public:
+    explicit SmXMLImportWrapper(css::uno::Reference<css::frame::XModel> const& rRef)
+        : xModel(rRef)
+        , m_bUseHTMLMLEntities(false)
+    {
+    }
+
+    ErrCode Import(SfxMedium& rMedium);
+    void useHTMLMLEntities(bool bUseHTMLMLEntities) { m_bUseHTMLMLEntities = bUseHTMLMLEntities; }
+
+    static ErrCode
+    ReadThroughComponent(const css::uno::Reference<css::io::XInputStream>& xInputStream,
+                         const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                         css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                         css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                         const char* pFilterName, bool bEncrypted, bool bUseHTMLMLEntities);
+
+    static ErrCode
+    ReadThroughComponent(const css::uno::Reference<css::embed::XStorage>& xStorage,
+                         const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                         const char* pStreamName,
+                         css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                         css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                         const char* pFilterName, bool bUseHTMLMLEntities);
+};
+
+class SmXMLImport final : public SvXMLImport
+{
+    SmNodeStack aNodeStack;
+    bool bSuccess;
+    int nParseDepth;
+    OUString aText;
+    sal_uInt16 mnSmSyntaxVersion;
+
+public:
+    SmXMLImport(const css::uno::Reference<css::uno::XComponentContext>& rContext,
+                OUString const& implementationName, SvXMLImportFlags nImportFlags);
+    virtual ~SmXMLImport() noexcept override;
+
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething(const css::uno::Sequence<sal_Int8>& rId) override;
+    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId() noexcept;
+
+    void SAL_CALL endDocument() override;
+
+    SvXMLImportContext* CreateFastContext(
+        sal_Int32 nElement,
+        const css::uno::Reference<css::xml::sax::XFastAttributeList>& xAttrList) override;
+
+    SmNodeStack& GetNodeStack() { return aNodeStack; }
+
+    bool GetSuccess() const { return bSuccess; }
+    [[nodiscard]] const OUString& GetText() const { return aText; }
+    void SetText(const OUString& rStr) { aText = rStr; }
+
+    virtual void
+    SetViewSettings(const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+    virtual void SetConfigurationSettings(
+        const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+
+    void IncParseDepth() { ++nParseDepth; }
+    bool TooDeep() const { return nParseDepth >= 2048; }
+    void DecParseDepth() { --nParseDepth; }
+    void SetSmSyntaxVersion(sal_uInt16 nSmSyntaxVersion) { mnSmSyntaxVersion = nSmSyntaxVersion; }
+    sal_uInt16 GetSmSyntaxVersion() const { return mnSmSyntaxVersion; }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/mathml/starmathdatabase.hxx b/starmath/inc/mathml/starmathdatabase.hxx
new file mode 100644
index 000000000..b4d3d6d3f
--- /dev/null
+++ b/starmath/inc/mathml/starmathdatabase.hxx
@@ -0,0 +1,332 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <token.hxx>
+
+// Starmath color types
+// In order to add them to starmath, edit the SmColorTokenTableEntry lists on
+// /core/starmath/source/starmathdatabase.css .
+
+// HTML
+// https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#Color_Keywords
+/* CSS Level 1 */
+constexpr Color COL_SM_BLACK(0x000000);
+constexpr Color COL_SM_SILVER(0xC0C0C0);
+constexpr Color COL_SM_GRAY(0x808080);
+constexpr Color COL_SM_WHITE(0xFFFFFF);
+constexpr Color COL_SM_MAROON(0x800000);
+constexpr Color COL_SM_RED(0xFF0000);
+constexpr Color COL_SM_PURPLE(0x800080);
+constexpr Color COL_SM_FUCHSIA(0xFF00FF);
+constexpr Color COL_SM_GREEN(0x008000);
+constexpr Color COL_SM_LIME(0x00FF00);
+constexpr Color COL_SM_OLIVE(0x808000);
+constexpr Color COL_SM_YELLOW(0xFFFF00);
+constexpr Color COL_SM_NAVY(0x000080);
+constexpr Color COL_SM_BLUE(0x0000FF);
+constexpr Color COL_SM_TEAL(0x008080);
+constexpr Color COL_SM_AQUA(0x00FFFF);
+/* CSS Level 2 */
+constexpr Color COL_SM_ORANGE(0xFFA500);
+/* CSS Level 3 */
+constexpr Color COL_SM_ALICEBLUE(0xF0F8FF);
+constexpr Color COL_SM_ANTIQUEWHITE(0xFAEBD7);
+constexpr Color COL_SM_AQUAMARINE(0x7FFFD4);
+constexpr Color COL_SM_AZURE(0xF0FFFF);
+constexpr Color COL_SM_BEIGE(0xF5F5DC);
+constexpr Color COL_SM_BISQUE(0xFFE4C4);
+constexpr Color COL_SM_BLANCHEDALMOND(0xFFEBCD);
+constexpr Color COL_SM_BLUEVIOLET(0x8A2BE2);
+constexpr Color COL_SM_BROWN(0xA52A2A);
+constexpr Color COL_SM_BURLYWOOD(0xDEB887);
+constexpr Color COL_SM_CADETBLUE(0x5F9EA0);
+constexpr Color COL_SM_CHARTREUSE(0x7FFF00);
+constexpr Color COL_SM_CHOCOLATE(0xD2691E);
+constexpr Color COL_SM_CORAL(0xFF7F50);
+constexpr Color COL_SM_CORNFLOWERBLUE(0x6495ED);
+constexpr Color COL_SM_CORNSILK(0xFFF8DC);
+constexpr Color COL_SM_CRIMSON(0xDC143C);
+constexpr Color COL_SM_CYAN(0x00FFFF);
+constexpr Color COL_SM_DARKBLUE(0x00008B);
+constexpr Color COL_SM_DARKCYAN(0x008B8B);
+constexpr Color COL_SM_DARKGOLDENROD(0xB8860B);
+constexpr Color COL_SM_DARKGRAY(0xA9A9A9);
+constexpr Color COL_SM_DARKGREEN(0x006400);
+constexpr Color COL_SM_DARKGREY(0xA9A9A9);
+constexpr Color COL_SM_DARKKHAKI(0xBDB76B);
+constexpr Color COL_SM_DARKMAGENTA(0x8B008B);
+constexpr Color COL_SM_DARKOLIVEGREEN(0x556B2F);
+constexpr Color COL_SM_DARKORANGE(0xFF8C00);
+constexpr Color COL_SM_DARKORCHID(0x9932CC);
+constexpr Color COL_SM_DARKRED(0x8B0000);
+constexpr Color COL_SM_DARKSALMON(0xE9967A);
+constexpr Color COL_SM_DARKSEAGREEN(0x8FBC8F);
+constexpr Color COL_SM_DARKSLATEBLUE(0x483D8B);
+constexpr Color COL_SM_DARKSLATEGRAY(0x2F4F4F);
+constexpr Color COL_SM_DARKSLATEGREY(0x2F4F4F);
+constexpr Color COL_SM_DARKTURQUOISE(0x00CED1);
+constexpr Color COL_SM_DARKVIOLET(0x9400D3);
+constexpr Color COL_SM_DEEPPINK(0xFF1493);
+constexpr Color COL_SM_DEEPSKYBLUE(0x00BFFF);
+constexpr Color COL_SM_DIMGRAY(0x696969);
+constexpr Color COL_SM_DIMGREY(0x696969);
+constexpr Color COL_SM_DODGERBLUE(0x1E90FF);
+constexpr Color COL_SM_FIREBRICK(0xB22222);
+constexpr Color COL_SM_FLORALWHITE(0xFFFAF0);
+constexpr Color COL_SM_FORESTGREEN(0x228B22);
+constexpr Color COL_SM_GAINSBORO(0xDCDCDC);
+constexpr Color COL_SM_GHOSTWHITE(0xF8F8FF);
+constexpr Color COL_SM_GOLD(0xFFD700);
+constexpr Color COL_SM_GOLDENROD(0xDAA520);
+constexpr Color COL_SM_GREENYELLOW(0xADFF2F);
+constexpr Color COL_SM_GREY(0x808080);
+constexpr Color COL_SM_HONEYDEW(0xF0FFF0);
+constexpr Color COL_SM_HOTPINK(0xFF69B4);
+constexpr Color COL_SM_INDIANRED(0xCD5C5C);
+constexpr Color COL_SM_INDIGO(0x4B0082);
+constexpr Color COL_SM_IVORY(0xFFFFF0);
+constexpr Color COL_SM_KHAKI(0xF0E68C);
+constexpr Color COL_SM_LAVENDER(0xE6E6FA);
+constexpr Color COL_SM_LAVENDERBLUSH(0xFFF0F5);
+constexpr Color COL_SM_LAWNGREEN(0x7CFC00);
+constexpr Color COL_SM_LEMONCHIFFON(0xFFFACD);
+constexpr Color COL_SM_LIGHTBLUE(0xADD8E6);
+constexpr Color COL_SM_LIGHTCORAL(0xF08080);
+constexpr Color COL_SM_LIGHTCYAN(0xE0FFFF);
+constexpr Color COL_SM_LIGHTGOLDENRODYELLOW(0xFAFAD2);
+constexpr Color COL_SM_LIGHTGRAY(0xD3D3D3);
+constexpr Color COL_SM_LIGHTGREEN(0x90EE90);
+constexpr Color COL_SM_LIGHTGREY(0xD3D3D3);
+constexpr Color COL_SM_LIGHTPINK(0xFFB6C1);
+constexpr Color COL_SM_LIGHTSALMON(0xFFA07A);
+constexpr Color COL_SM_LIGHTSEAGREEN(0x20B2AA);
+constexpr Color COL_SM_LIGHTSKYBLUE(0x87CEFA);
+constexpr Color COL_SM_LIGHTSLATEGRAY(0x778899);
+constexpr Color COL_SM_LIGHTSLATEGREY(0x778899);
+constexpr Color COL_SM_LIGHTSTEELBLUE(0xB0C4DE);
+constexpr Color COL_SM_LIGHTYELLOW(0xFFFFE0);
+constexpr Color COL_SM_LIMEGREEN(0x32CD32);
+constexpr Color COL_SM_LINEN(0xFAF0E6);
+constexpr Color COL_SM_MAGENTA(0xFF00FF);
+constexpr Color COL_SM_MEDIUMAQUAMARINE(0x66CDAA);
+constexpr Color COL_SM_MEDIUMBLUE(0x0000CD);
+constexpr Color COL_SM_MEDIUMORCHID(0xBA55D3);
+constexpr Color COL_SM_MEDIUMPURPLE(0x9370DB);
+constexpr Color COL_SM_MEDIUMSEAGREEN(0x3CB371);
+constexpr Color COL_SM_MEDIUMSLATEBLUE(0x7B68EE);
+constexpr Color COL_SM_MEDIUMSPRINGGREEN(0x00FA9A);
+constexpr Color COL_SM_MEDIUMTURQUOISE(0x48D1CC);
+constexpr Color COL_SM_MEDIUMVIOLETRED(0xC71585);
+constexpr Color COL_SM_MIDNIGHTBLUE(0x191970);
+constexpr Color COL_SM_MINTCREAM(0xF5FFFA);
+constexpr Color COL_SM_MISTYROSE(0xFFE4E1);
+constexpr Color COL_SM_MOCCASIN(0xFFE4B5);
+constexpr Color COL_SM_NAVAJOWHITE(0xFFDEAD);
+constexpr Color COL_SM_OLDLACE(0xFDF5E6);
+constexpr Color COL_SM_OLIVEDRAB(0x6B8E23);
+constexpr Color COL_SM_ORANGERED(0xFF4500);
+constexpr Color COL_SM_ORCHID(0xDA70D6);
+constexpr Color COL_SM_PALEGOLDENROD(0xEEE8AA);
+constexpr Color COL_SM_PALEGREEN(0x98FB98);
+constexpr Color COL_SM_PALETURQUOISE(0xAFEEEE);
+constexpr Color COL_SM_PALEVIOLETRED(0xDB7093);
+constexpr Color COL_SM_PAPAYAWHIP(0xFFEFD5);
+constexpr Color COL_SM_PEACHPUFF(0xFFDAB9);
+constexpr Color COL_SM_PERU(0xCD853F);
+constexpr Color COL_SM_PINK(0xFFC0CB);
+constexpr Color COL_SM_PLUM(0xDDA0DD);
+constexpr Color COL_SM_POWDERBLUE(0xB0E0E6);
+constexpr Color COL_SM_ROSYBROWN(0xBC8F8F);
+constexpr Color COL_SM_ROYALBLUE(0x4169E1);
+constexpr Color COL_SM_SADDLEBROWN(0x8B4513);
+constexpr Color COL_SM_SALMON(0xFA8072);
+constexpr Color COL_SM_SANDYBROWN(0xF4A460);
+constexpr Color COL_SM_SEAGREEN(0x2E8B57);
+constexpr Color COL_SM_SEASHELL(0xFFF5EE);
+constexpr Color COL_SM_SIENNA(0xA0522D);
+constexpr Color COL_SM_SKYBLUE(0x87CEEB);
+constexpr Color COL_SM_SLATEBLUE(0x6A5ACD);
+constexpr Color COL_SM_SLATEGRAY(0x708090);
+constexpr Color COL_SM_SLATEGREY(0x708090);
+constexpr Color COL_SM_SNOW(0xFFFAFA);
+constexpr Color COL_SM_SPRINGGREEN(0x00FF7F);
+constexpr Color COL_SM_STEELBLUE(0x4682B4);
+constexpr Color COL_SM_TAN(0xD2B48C);
+constexpr Color COL_SM_THISTLE(0xD8BFD8);
+constexpr Color COL_SM_TOMATO(0xFF6347);
+constexpr Color COL_SM_TURQUOISE(0x40E0D0);
+constexpr Color COL_SM_VIOLET(0xEE82EE);
+constexpr Color COL_SM_WHEAT(0xF5DEB3);
+constexpr Color COL_SM_WHITESMOKE(0xF5F5F5);
+constexpr Color COL_SM_YELLOWGREEN(0x9ACD32);
+/* CSS Level 4 */
+constexpr Color COL_SM_REBECCAPURPLE(0x663399);
+/* dvipsnames */
+// For now only five colors.
+// In a future all of them.
+// https://www.overleaf.com/learn/latex/Using_colours_in_LaTeX
+constexpr Color COL_SM_DIV_APRICOT(0xFFB781);
+constexpr Color COL_SM_DIV_AQUAMARINE(0x1BBEC1);
+constexpr Color COL_SM_DIV_BITTERSWEET(0xCF4B16);
+constexpr Color COL_SM_DIV_BLACK(0xCF4B16);
+constexpr Color COL_SM_DIV_BLUE(0x102694);
+/* Iconic colors */
+// https://design.ubuntu.com/brand/colour-palette/
+constexpr Color COL_SM_UBUNTU_ORANGE(0xE95420);
+// https://www.debian.org/logos/   Picked from SVG logo
+constexpr Color COL_SM_DEBIAN_MAGENTA(0xA80030);
+// https://libreoffice.org/
+constexpr Color COL_SM_LO_GREEN(0x00A500);
+
+namespace starmathdatabase
+{
+// Variables containing color information.
+extern const SmColorTokenTableEntry aColorTokenTableParse[159];
+extern const SmColorTokenTableEntry aColorTokenTableHTML[148];
+extern const SmColorTokenTableEntry aColorTokenTableMATHML[16];
+extern const SmColorTokenTableEntry aColorTokenTableDVIPS[5];
+extern const SmColorTokenTableEntry aColorTokenTableERROR[1];
+
+/**
+  * Identifies operator chars tokens for importing mathml.
+  * Identifies from char cChar
+  *
+  * While loading MO or MI elements might find an unicode16 symbol.
+  * This code allows to generate appropriate token for them.
+  *
+  * @param cChar
+  * @return closing fences' token
+  */
+SmToken Identify_SmXMLOperatorContext_Impl(sal_Unicode cChar, bool bIsStretchy = true);
+
+/**
+  * Identifies opening / closing brace tokens for importing mathml.
+  * Identifies from char cChar
+  *
+  * While loading MO fenced elements might find braces symbols.
+  * This code allows to generate appropriate token for them.
+  *
+  * @param cChar
+  * @return closing fences' token
+  */
+SmToken Identify_PrefixPostfix_SmXMLOperatorContext_Impl(sal_Unicode cChar);
+
+/**
+  * Identifies opening brace tokens for importing mathml.
+  * Identifies from char cChar
+  *
+  * While loading MO elements ( with prefix value for form attribute ) might find braces symbols.
+  * This code allows to generate appropriate token for them.
+  *
+  * @param cChar
+  * @return closing fences' token
+  */
+SmToken Identify_Prefix_SmXMLOperatorContext_Impl(sal_Unicode cChar);
+
+/**
+  * Identifies closing brace tokens for importing mathml.
+  * Identifies from char cChar
+  *
+  * While loading MO elements ( with postfix value for form attribute ) might find braces symbols.
+  * This code allows to generate appropriate token for them.
+  *
+  * @param cChar
+  * @return closing fences' token
+  */
+SmToken Identify_Postfix_SmXMLOperatorContext_Impl(sal_Unicode cChar);
+
+/**
+  * Identifies color from color code cColor.
+  * It will be returned with the parser syntax.
+  *
+  * For a given color returns the way it would be in the parser.
+  * Used for nodes to text visitors.
+  *
+  * @param cColor
+  * @param parser color
+  */
+SmColorTokenTableEntry Identify_Color_Parser(sal_uInt32 cColor);
+
+/**
+  * Identifies color from color code cColor.
+  * It will be returned with the HTML syntax.
+  * @param cColor
+  * @param parser color
+  */
+SmColorTokenTableEntry Identify_Color_HTML(sal_uInt32 cColor);
+
+/**
+  * Identifies color from color code cColor.
+  * It will be returned with the MATHML syntax.
+  *
+  * This is used to export mathml.
+  * Identifies the color and allows it to export it in proper mathml code.
+  *
+  * @param cColor
+  * @param parser color
+  */
+SmColorTokenTableEntry Identify_Color_MATHML(sal_uInt32 cColor);
+
+/**
+  * Identifies color from color code cColor.
+  * It will be returned with the dvipsnames syntax.
+  * @param cColor
+  * @param parser color
+  */
+SmColorTokenTableEntry Identify_Color_DVIPSNAMES(sal_uInt32 cColor);
+
+/**
+  * Identifies color from color name.
+  * It will be returned with the parser syntax.
+  *
+  * This finds color values for the color names loaded by the parser.
+  *
+  * @param cColor
+  * @param parser color
+  */
+const SmColorTokenTableEntry* Identify_ColorName_Parser(std::u16string_view colorname);
+
+/**
+  * Identifies color from color name.
+  * It will be returned with the HTML syntax.
+  *
+  * This finds color values for the color names loaded by mathmlimport.
+  * In theory mathml only supports HTML4 colors, but most browsers support all HTML5 colors.
+  * That's why there is an high risk of finding them inside mathml and have to give support.
+  *
+  * @param cColor
+  * @param parser color
+  */
+SmColorTokenTableEntry Identify_ColorName_HTML(std::u16string_view colorname);
+
+/**
+  * Identifies color from color name.
+  * It will be returned with the dvipsnames syntax.
+  *
+  * This code has been implemented to add a compatibility layer to import / export latex.
+  *
+  * @param cColor
+  * @param parser color
+  */
+const SmColorTokenTableEntry* Identify_ColorName_DVIPSNAMES(std::u16string_view colorname);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/mathml/xparsmlbase.hxx b/starmath/inc/mathml/xparsmlbase.hxx
new file mode 100644
index 000000000..6c645a55e
--- /dev/null
+++ b/starmath/inc/mathml/xparsmlbase.hxx
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/beans/Pair.hpp>
+namespace starmathdatabase
+{
+/**
+  * w3 documentation has been used for this.
+  * See: https://www.w3.org/2003/entities/2007/htmlmathml-f.ent
+  * Copyright 1998 - 2011 W3C.
+  * We allow the import of HTML5 entities because are compatible with mathml
+  * and ill formatted are expected.
+  * On export only mathml entities are allowed.
+  * Some documentation: https://www.w3.org/TR/MathML3/chapter7.html
+  */
+
+constexpr sal_Int32 STARMATH_MATHMLHTML_ENTITY_NUMBER = 2125;
+
+/**
+  * Entity names for mathml. Example: &infin -> \u221E;
+  * These ones are to be used on import.
+  */
+const extern ::css::uno::Sequence<::css::beans::Pair<::rtl::OUString, ::rtl::OUString>>
+    icustomMathmlHtmlEntities;
+
+/**
+  * Entity names for mathml. Example: "\u221E"; -> &infin;
+  * These ones are to be used on file export.
+  */
+const extern ::css::uno::Sequence<::css::beans::Pair<::rtl::OUString, ::rtl::OUString>>
+    icustomMathmlHtmlEntitiesExport;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/node.hxx b/starmath/inc/node.hxx
new file mode 100644
index 000000000..0a8a6c369
--- /dev/null
+++ b/starmath/inc/node.hxx
@@ -0,0 +1,2110 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/** The SmNode is the basic structure of formula data.
+  *
+  * Each token is stored in one node of specific kind.
+  * They can have SmNodeType. It allows to identify node type after abstraction.
+  * Here goes the subclasses tree:
+  *
+  * SmRect
+  *     SmNode
+  *         SmStructureNode                             Head of tree diagram
+  *             SmTableNode                             binom
+  *             SmLineNode                              A line
+  *                 SmExpressionNode                    { content }
+  *             SmUnHorNode                             unary operators +-; -+; +x; -x; ...
+  *             SmRootNode                              Root structure
+  *             SmBinHorNode                            binary operators A + B
+  *             SmBinVerNode                            over; frac; ...
+  *             SmBinDiagonalNode                       wideslash
+  *             SmSubSupNode                            csub, csup, lsub, from, to, ...
+  *             SmBraceNode                             (); []; left lbrace right rbrace; ...
+  *             SmBracebodyNode                         ( content ); [ content ]; ...
+  *             SmVerticalBraceNode                     overbrace; underbrace;
+  *             SmOperNode                              sum from to; int from to;
+  *             SmAlignNode                             text alignment
+  *             SmAttributeNode                         font attributes; bold;
+  *             SmFontNode                              font serif; ...
+  *             SmMatrixNode                            matrix
+  *         SmVisibleNode                               drawable node
+  *             SmGraphicNode                           graphics display
+  *                 SmRectangleNode
+  *                 SmPolyLineNode                      overline; underline; widehat; ...
+  *                 SmBlankNode                         blank space; ~; ...
+  *             SmTextNode                              "text"; func functname; ...
+  *                 SmSpecialNode
+  *                     SmGlyphSpecialNode              %symbolname
+  *                     SmMathSymbolNode                math symbols
+  *                         SmMathIdentifierNode        variable
+  *                         SmRootSymbolNode            root symbol
+  *                         SmPlaceNode                 <?>
+  *                         SmErrorNode                 red ? for errors
+  *
+  */
+
+#pragma once
+
+#include "types.hxx"
+#include "token.hxx"
+#include "rect.hxx"
+#include "format.hxx"
+#include "nodetype.hxx"
+
+#include <editeng/editdata.hxx>
+#include <rtl/ustrbuf.hxx>
+
+enum class FontAttribute {
+    None   = 0x0000,
+    Bold   = 0x0001,
+    Italic = 0x0002
+};
+
+namespace o3tl
+{
+    template<> struct typed_flags<FontAttribute> : is_typed_flags<FontAttribute, 0x0003> {};
+}
+
+
+enum class FontSizeType {
+  ABSOLUT  = 1,
+  PLUS     = 2,
+  MINUS    = 3,
+  MULTIPLY = 4,
+  DIVIDE   = 5
+};
+
+// flags to interdict respective status changes
+enum class FontChangeMask {
+    None     = 0x0000,
+    Face     = 0x0001,
+    Size     = 0x0002,
+    Bold     = 0x0004,
+    Italic   = 0x0008,
+    Color    = 0x0010,
+    Phantom  = 0x0020
+};
+
+namespace o3tl
+{
+    template<> struct typed_flags<FontChangeMask> : is_typed_flags<FontChangeMask, 0x003f> {};
+}
+
+
+class SmVisitor;
+class SmDocShell;
+class SmNode;
+class SmStructureNode;
+
+typedef std::vector< SmNode * > SmNodeArray;
+
+enum class SmScaleMode
+{
+    None,
+    Width,
+    Height
+};
+
+class SmNode : public SmRect
+{
+    // Rendering info for SmRect
+    SmFace          maFace;
+    // Anclage to the code
+    SmToken         maNodeToken;
+    ESelection      m_aESelection;
+    // Node information
+    SmNodeType      meType;
+    SmScaleMode     meScaleMode;
+    RectHorAlign    meRectHorAlign;
+    FontChangeMask  mnFlags;
+    FontAttribute   mnAttributes;
+    bool            mbIsPhantom;
+    bool            mbIsSelected;
+    // index in accessible text; -1 if not (yet) applicable
+    sal_Int32       mnAccIndex;
+
+protected:
+    SmNode(SmNodeType eNodeType, const SmToken &rNodeToken);
+
+public:
+    SmNode(const SmNode&) = delete;
+    SmNode& operator=(const SmNode&) = delete;
+
+    virtual ~SmNode();
+
+    /**
+     * Checks node visibility.
+     * Returns true if this is an instance of SmVisibleNode's subclass, false otherwise.
+     * @return node visibility
+     */
+    virtual bool IsVisible() const = 0;
+
+    /**
+     * Gets the number of subnodes.
+     * @return number of subnodes
+     */
+    virtual size_t GetNumSubNodes() const = 0;
+
+    /**
+     * Gets the subnode of index nIndex.
+     * @param nIndex
+     * @return subnode of index nIndex
+     */
+    virtual SmNode * GetSubNode(size_t nIndex) = 0;
+    const   SmNode * GetSubNode(size_t nIndex) const
+                     { return const_cast<SmNode *>(this)->GetSubNode(nIndex); }
+
+    virtual const SmNode * GetLeftMost() const;
+
+    /**
+     * Gets the FontChangeMask flags.
+     * @return FontChangeMask flags
+     */
+    FontChangeMask &Flags() { return mnFlags; }
+
+    /**
+     * Gets the font attributes.
+     * @return font attributes
+     */
+    FontAttribute &Attributes() { return mnAttributes; }
+
+    /**
+     * Checks if it is a visible node rendered invisible.
+     * @return rendered visibility
+     */
+    bool IsPhantom() const { return mbIsPhantom; }
+
+    /**
+     * Sets the render visibility of a visible node to bIsPhantom.
+     * @param bIsPhantom
+     * @return
+     */
+    void SetPhantom(bool bIsPhantom);
+
+    /**
+     * Sets the font color.
+     * @param rColor
+     * @return
+     */
+    void SetColor(const Color &rColor);
+
+    /**
+     * Sets the font attribute nAttrib.
+     * Check FontAttribute class.
+     * @param nAttrib
+     * @return
+     */
+    void SetAttribute(FontAttribute nAttrib);
+
+    /**
+     * Clears the font attribute nAttrib.
+     * Check FontAttribute class.
+     * @param nAttrib
+     * @return
+     */
+    void ClearAttribute(FontAttribute nAttrib);
+
+    /**
+     * Gets the font.
+     * @return font
+     */
+    const SmFace & GetFont() const { return maFace; };
+          SmFace & GetFont()       { return maFace; };
+
+    /**
+     * Sets the font to rFace.
+     * @param rFace
+     * @return
+     */
+    void SetFont(const SmFace &rFace);
+
+    /**
+     * Sets the font size to rRelSize with type nType.
+     * Check FontSizeType for details.
+     * @param rRelSize
+     * @param nType
+     * @return
+     */
+    void SetFontSize(const Fraction &rRelSize, FontSizeType nType);
+
+    /**
+     * Sets the font size to rRelSize with type FontSizeType::ABSOLUT.
+     * @param rScale
+     * @return
+     */
+    void SetSize(const Fraction &rScale);
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth);
+
+    /**
+     * Prepare preliminary font attributes
+     * Called on Prepare(...).
+     * @return
+     */
+    void PrepareAttributes();
+
+    /**
+     * Sets the alignment of the text.
+     * Check RectHorAlign class for details.
+     * The subtrees will be affected if bApplyToSubTree.
+     * @param eHorAlign
+     * @param bApplyToSubTree
+     * @return
+     */
+    void SetRectHorAlign(RectHorAlign eHorAlign, bool bApplyToSubTree = true );
+
+    /**
+     * Gets the alignment of the text.
+     * @return alignment of the text
+     */
+    RectHorAlign GetRectHorAlign() const { return meRectHorAlign; }
+
+    /**
+     * Parses itself to SmRect.
+     * @return this
+     */
+    const SmRect & GetRect() const { return *this; }
+
+    /**
+     * Moves the rectangle by rVector.
+     * @param rVector
+     * @return
+     */
+    void Move(const Point &rVector);
+
+    /**
+     * Moves the rectangle to rPoint, being the top left corner the origin.
+     * @param rPoint
+     * @return
+     */
+    void MoveTo(const Point &rPoint) { Move(rPoint - GetTopLeft()); }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) = 0;
+
+    /**
+     * Appends to rText the node text.
+     * @param rText
+     * @return
+     */
+    virtual void GetAccessibleText( OUStringBuffer &rText ) const = 0;
+
+    /**
+     * Gets the node accessible index.
+     * Used for visual editing.
+     * @return node accessible index
+     */
+    sal_Int32 GetAccessibleIndex() const { return mnAccIndex; }
+
+    /**
+     * Sets the node accessible index to nAccIndex.
+     * Used for visual editing.
+     * @param nAccIndex
+     * @return
+     */
+    void SetAccessibleIndex(sal_Int32 nAccIndex) { mnAccIndex = nAccIndex; }
+
+    /**
+     * Finds the node with accessible index nAccIndex.
+     * Used for visual editing.
+     * @param nAccIndex
+     * @return node with accessible index nAccIndex
+     */
+    const SmNode * FindNodeWithAccessibleIndex(sal_Int32 nAccIndex) const;
+
+    /**
+     * Gets the line in the text where the node is located.
+     * It is used to do the visual <-> text correspondence.
+     * @return line
+     */
+    sal_uInt16 GetRow() const { return sal::static_int_cast<sal_uInt16>(m_aESelection.nStartPara); }
+
+    /**
+     * Gets the column of the line in the text where the node is located.
+     * It is used to do the visual <-> text correspondence.
+     * @return column
+     */
+    sal_uInt16 GetColumn() const { return sal::static_int_cast<sal_uInt16>(m_aESelection.nStartPos); }
+
+    /**
+     * Gets the scale mode.
+     * @return scale mode
+     */
+    SmScaleMode GetScaleMode() const { return meScaleMode; }
+
+    /**
+     * Sets the scale mode to eMode.
+     * @param eMode
+     * @return
+     */
+    void SetScaleMode(SmScaleMode eMode) { meScaleMode = eMode; }
+
+    //visual stuff TODO comment
+    virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth);
+    virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight);
+
+    /**
+     * Gets the node type.
+     * @return node type
+     */
+    SmNodeType GetType() const  { return meType; }
+
+    /**
+     * Gets the token.
+     * The token contains the data extracted from the text mode.
+     * Ej: text, type (sub, sup, int,...), row and column,...
+     * @return node type
+     */
+    const SmToken & GetToken() const { return maNodeToken; }
+          SmToken & GetToken()       { return maNodeToken; }
+
+    /**
+     * Gets node position in input text.
+     * @return node position in input text
+     */
+    const ESelection& GetSelection() const { return m_aESelection; }
+
+    /**
+     * Gets node position in input text.
+     * @param aESelection
+     */
+    void SetSelection(ESelection aESelection) { m_aESelection = aESelection; }
+
+    /**
+     * Finds the node from the position in the text.
+     * It is used to do the visual <-> text correspondence.
+     * @param nRow
+     * @param nCol
+     * @return the given node
+     */
+    const SmNode *  FindTokenAt(sal_uInt16 nRow, sal_uInt16 nCol) const;
+
+    /**
+     * Finds the closest rectangle in the screen.
+     * @param rPoint
+     * @return the given node
+     */
+    const SmNode *  FindRectClosestTo(const Point &rPoint) const;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    virtual void Accept(SmVisitor* pVisitor) = 0;
+
+    /**
+     * Checks if the node is selected.
+     * @return the node is selected
+     */
+    bool IsSelected() const {return mbIsSelected;}
+
+    /**
+     * Sets the node to Selected.
+     * @param Selected
+     * @return
+     */
+    void SetSelected(bool Selected) {mbIsSelected = Selected;}
+
+    /**
+     * Gets the parent node of this node.
+     * @return parent node
+     */
+    const SmStructureNode* GetParent() const { return mpParentNode; }
+          SmStructureNode* GetParent()       { return mpParentNode; }
+
+    /**
+     * Sets the parent node.
+     * @param parent
+     * @return
+     */
+    void SetParent(SmStructureNode* parent){ mpParentNode = parent; }
+
+    /**
+     * Sets the token for this node.
+     * @param token
+     * @return
+     */
+    void SetToken(SmToken const & token){ maNodeToken = token; }
+
+private:
+    SmStructureNode* mpParentNode;
+};
+
+
+/** Abstract baseclass for all composite node
+ *
+ * Subclasses of this class can have subnodes. Nodes that doesn't derivate from
+ * this class does not have subnodes.
+ */
+class SmStructureNode : public SmNode
+{
+    SmNodeArray maSubNodes;
+
+protected:
+    SmStructureNode(SmNodeType eNodeType, const SmToken &rNodeToken, size_t nSize = 0)
+        : SmNode(eNodeType, rNodeToken)
+        , maSubNodes(nSize) {}
+
+public:
+    virtual ~SmStructureNode() override;
+
+    /**
+     * Checks node visibility.
+     * Returns true if this is an instance of SmVisibleNode's subclass, false otherwise.
+     * @return node visibility
+     */
+    virtual bool IsVisible() const override;
+
+    /**
+     * Gets the number of subnodes.
+     * @return number of subnodes
+     */
+    virtual size_t GetNumSubNodes() const override;
+
+    /**
+     * Gets the subnode of index nIndex.
+     * @param nIndex
+     * @return subnode of index nIndex
+     */
+    using   SmNode::GetSubNode;
+    virtual SmNode * GetSubNode(size_t nIndex) override;
+
+    /**
+     * Gets the subnode of index nIndex, used for operators.
+     * @param nIndex
+     * @return subnode of index nIndex
+     */
+    SmNode * GetSubNodeBinMo(size_t nIndex) const;
+
+    /**
+     * Does the cleaning of the subnodes.
+     * @return
+     */
+    void ClearSubNodes();
+
+    /**
+     * Sets subnodes, used for operators.
+     * @param pFirst
+     * @param pSecond
+     * @param pThird
+     * @return
+     */
+    void SetSubNodes(std::unique_ptr<SmNode> pFirst, std::unique_ptr<SmNode> pSecond,
+                     std::unique_ptr<SmNode> pThird = nullptr);
+
+    /**
+     * Sets subnodes.
+     * @param pFirst
+     * @param pSecond
+     * @param pThird
+     * @return
+     */
+    void SetSubNodes(SmNode* pFirst, SmNode* pSecond, SmNode* pThird);
+
+    /**
+     * Sets subnodes, used for operators.
+     * The data is reordered so the items are correctly ordered.
+     * @param pFirst
+     * @param pSecond
+     * @param pThird
+     * @return
+     */
+    void SetSubNodesBinMo(std::unique_ptr<SmNode> pFirst, std::unique_ptr<SmNode> pSecond,
+                          std::unique_ptr<SmNode> pThird = nullptr);
+
+    /**
+     * Sets subnodes, used for operators.
+     * The data is reordered so the items are correctly ordered.
+     * @param pFirst
+     * @param pSecond
+     * @param pThird
+     * @return
+     */
+    void SetSubNodesBinMo(SmNode* pFirst, SmNode* pSecond, SmNode* pThird);
+
+    /**
+     * Sets subnodes.
+     * @param rNodeArray
+     * @return
+     */
+    void SetSubNodes(SmNodeArray&& rNodeArray);
+
+    /**
+     * Appends to rText the node text.
+     * @param rText
+     * @return
+     */
+    virtual void  GetAccessibleText( OUStringBuffer &rText ) const override;
+
+    /**
+     * Gets the first subnode.
+     * @return first subnode
+     */
+    SmNodeArray::iterator begin() {return maSubNodes.begin();}
+
+    /**
+     * Gets the last subnode.
+     * @return last subnode
+     */
+    SmNodeArray::iterator end() {return maSubNodes.end();}
+
+    /**
+     * Gets the last subnode.
+     * @return last subnode
+     */
+    SmNodeArray::reverse_iterator rbegin() {return maSubNodes.rbegin();}
+
+    /**
+     * Gets the first subnode.
+     * @return first subnode
+     */
+    SmNodeArray::reverse_iterator rend() {return maSubNodes.rend();}
+
+    /**
+     * Get the index of the child node pSubNode.
+     * Returns -1, if pSubNode isn't a subnode of this.
+     * @param pSubNode
+     * @return index of the child node
+     */
+    int IndexOfSubNode(SmNode const * pSubNode);
+
+    /**
+     * Sets the subnode pNode at nIndex.
+     * If necessary increases the subnodes length.
+     * @param nIndex
+     * @param pNode
+     * @return
+     */
+    void SetSubNode(size_t nIndex, SmNode* pNode);
+
+private:
+    /** Sets parent on children of this node */
+    void ClaimPaternity();
+};
+
+
+/** Abstract base class for all visible node
+ *
+ * Nodes that doesn't derivate from this class doesn't draw anything, but their
+ * children.
+ */
+class SmVisibleNode : public SmNode
+{
+protected:
+    SmVisibleNode(SmNodeType eNodeType, const SmToken &rNodeToken)
+    :   SmNode(eNodeType, rNodeToken) {}
+
+public:
+
+    /**
+     * Checks node visibility.
+     * Returns true if this is an instance of SmVisibleNode's subclass, false otherwise.
+     * @return node visibility
+     */
+    virtual bool        IsVisible() const override;
+
+    /**
+     * Gets the number of subnodes.
+     * @return number of subnodes
+     */
+    virtual size_t      GetNumSubNodes() const override;
+
+    /**
+     * Gets the subnode of index nIndex.
+     * @param nIndex
+     * @return subnode of index nIndex
+     */
+    using   SmNode::GetSubNode;
+    virtual SmNode *    GetSubNode(size_t nIndex) override;
+};
+
+
+class SmGraphicNode : public SmVisibleNode
+{
+protected:
+    SmGraphicNode(SmNodeType eNodeType, const SmToken &rNodeToken)
+    :   SmVisibleNode(eNodeType, rNodeToken) {}
+
+public:
+
+    /**
+     * Appends to rText the node text.
+     * @param rText
+     * @return
+     */
+    virtual void  GetAccessibleText( OUStringBuffer &rText ) const override;
+};
+
+
+/** Draws a rectangle
+ *
+ * Used for drawing the line in the OVER and OVERSTRIKE commands.
+ */
+class SmRectangleNode final : public SmGraphicNode
+{
+    Size maToSize;
+
+public:
+    explicit SmRectangleNode(const SmToken &rNodeToken)
+        : SmGraphicNode(SmNodeType::Rectangle, rNodeToken)
+    {}
+
+    //visual stuff TODO comment
+    virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth) override;
+    virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Polygon line node
+ *
+ * Used to draw the slash of the WIDESLASH command by SmBinDiagonalNode.
+ */
+class SmPolyLineNode final : public SmGraphicNode
+{
+    tools::Polygon maPoly;
+    Size maToSize;
+    tools::Long mnWidth;
+
+public:
+    explicit SmPolyLineNode(const SmToken &rNodeToken);
+
+    /**
+     * Gets the width of the rect.
+     * @return width
+     */
+    tools::Long GetWidth() const { return mnWidth; }
+
+    /**
+     * Gets the polygon to draw the node.
+     * @return polygon
+     */
+    tools::Polygon &GetPolygon()  { return maPoly; }
+
+    //visual stuff TODO comment
+    virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth) override;
+    virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Text node
+ *
+ * @remarks This class also serves as baseclass for all nodes that contains text.
+ */
+class SmTextNode : public SmVisibleNode
+{
+
+protected:
+    OUString   maText;
+    sal_uInt16 mnFontDesc;
+    /** Index within text where the selection starts
+     * @remarks Only valid if SmNode::IsSelected() is true
+     */
+    sal_Int32  mnSelectionStart;
+    /** Index within text where the selection ends
+     * @remarks Only valid if SmNode::IsSelected() is true
+     */
+    sal_Int32  mnSelectionEnd;
+
+protected:
+    SmTextNode(SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 nFontDescP );
+
+public:
+    SmTextNode(const SmToken &rNodeToken, sal_uInt16 nFontDescP );
+
+    /**
+     * Returns the font type being used (text, variable, symbol, ...).
+     * @return font type
+     */
+    sal_uInt16 GetFontDesc() const { return mnFontDesc; }
+
+    /**
+     * Sets the node text to rText.
+     * @param rText
+     * @return
+     */
+    void SetText(const OUString &rText) { maText = rText; }
+
+    /**
+     * Gets the node text.
+     * @return node text
+     */
+    const OUString & GetText() const { return maText; }
+          OUString & GetText()       { return maText; }
+
+    /**
+     * Change the text of this node, including the underlying token to rText.
+     * @param rText
+     * @return
+     */
+    void ChangeText(const OUString &rText);
+
+    /**
+     * Try to guess the correct FontDesc, used during visual editing
+     * @return
+     */
+    void AdjustFontDesc();
+
+    /**
+     * Index within GetText() where the selection starts.
+     * @remarks Only valid of SmNode::IsSelected() is true.
+     * @return index.
+     */
+    sal_Int32 GetSelectionStart() const { return mnSelectionStart; }
+
+    /**
+     * Index within GetText() where the selection ends.
+     * @remarks Only valid of SmNode::IsSelected() is true.
+     * @return index.
+     */
+    sal_Int32 GetSelectionEnd() const  {return mnSelectionEnd; }
+
+    /**
+     * Sets the index within GetText() where the selection starts to index.
+     * @param index
+     * @return
+     */
+    void SetSelectionStart(sal_Int32 index) {mnSelectionStart = index;}
+
+    /**
+     * Sets the index within GetText() where the selection ends to index.
+     * @param index
+     * @return
+     */
+    void SetSelectionEnd(sal_Int32 index) {mnSelectionEnd = index;}
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Appends to rText the node text.
+     * @param rText
+     * @return
+     */
+    virtual void  GetAccessibleText( OUStringBuffer &rText ) const override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+
+    /**
+     * Converts the character from StarMath's private area symbols to a matching Unicode
+     * character, if necessary. To be used when converting GetText() to a normal text.
+     * @param nIn
+     * @return unicode char
+     */
+    static sal_Unicode ConvertSymbolToUnicode(sal_Unicode nIn);
+};
+
+
+/** Special node for user defined characters
+ *
+ * Node used for pre- and user-defined characters from:
+ * officecfg/registry/data/org/openoffice/Office/Math.xcu
+ *
+ * This is just single characters, I think.
+ */
+class SmSpecialNode : public SmTextNode
+{
+    bool mbIsFromGreekSymbolSet;
+
+protected:
+    SmSpecialNode(SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 _nFontDesc);
+
+public:
+    explicit SmSpecialNode(const SmToken &rNodeToken);
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Glyph node for custom operators
+ *
+ * This node is used with commands: oper, uoper and boper.
+ * E.g. in "A boper op B", "op" will be an instance of SmGlyphSpecialNode.
+ * "boper" simply interprets "op", the following token, as a binary operator.
+ * The command "uoper" interprets the following token as unary operator.
+ * For these commands an instance of SmGlyphSpecialNode is used for the
+ * operator token, following the command.
+ */
+class SmGlyphSpecialNode final : public SmSpecialNode
+{
+public:
+    explicit SmGlyphSpecialNode(const SmToken &rNodeToken)
+        : SmSpecialNode(SmNodeType::GlyphSpecial, rNodeToken, FNT_MATH)
+    {}
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Math symbol node
+ *
+ * Use for math symbols such as plus, minus and integral in the INT command.
+ */
+class SmMathSymbolNode : public SmSpecialNode
+{
+protected:
+    SmMathSymbolNode(SmNodeType eNodeType, const SmToken &rNodeToken)
+    :   SmSpecialNode(eNodeType, rNodeToken, FNT_MATH)
+    {
+        SetText(GetToken().cMathChar);
+    }
+
+public:
+    explicit SmMathSymbolNode(const SmToken &rNodeToken);
+
+    //visual stuff TODO comment
+    virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth) override;
+    virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Math Identifier
+ *
+ * This behaves essentially the same as SmMathSymbolNode and is only used to
+ * represent math symbols that should be exported as <mi> elements rather than
+ * <mo> elements.
+ */
+class SmMathIdentifierNode final : public SmMathSymbolNode
+{
+public:
+    explicit SmMathIdentifierNode(const SmToken &rNodeToken)
+        : SmMathSymbolNode(SmNodeType::MathIdent, rNodeToken) {}
+};
+
+
+/** Root symbol node
+ *
+ * Root symbol node used by SmRootNode to create the root symbol, in front of
+ * the line with the line above. I don't think this node should be used for
+ * anything else.
+ */
+class SmRootSymbolNode final : public SmMathSymbolNode
+{
+    sal_uLong mnBodyWidth;  // width of body (argument) of root sign
+
+public:
+    explicit SmRootSymbolNode(const SmToken &rNodeToken)
+        : SmMathSymbolNode(SmNodeType::RootSymbol, rNodeToken)
+        , mnBodyWidth(0) { }
+
+    /**
+     * Gets the body width.
+     * Allows to know how long is the root and paint it.
+     * @return body width
+     */
+    sal_uLong GetBodyWidth() const {return mnBodyWidth;};
+
+    //visual stuff TODO comment
+    virtual void AdaptToX(OutputDevice &rDev, sal_uLong nHeight) override;
+    virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Place node
+ *
+ * Used to create the <?> command, that denotes place where something can be
+ * written.
+ * It is drawn as a square with a shadow.
+ */
+class SmPlaceNode final : public SmMathSymbolNode
+{
+public:
+    explicit SmPlaceNode(const SmToken &rNodeToken)
+        : SmMathSymbolNode(SmNodeType::Place, rNodeToken) { }
+    SmPlaceNode() : SmMathSymbolNode(SmNodeType::Place, SmToken(TPLACE, MS_PLACE, "<?>")) { };
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Error node, for parsing errors
+ *
+ * This node is used for parsing errors and draws a questionmark turned upside
+ * down (inverted question mark).
+ */
+class SmErrorNode final : public SmMathSymbolNode
+{
+public:
+    explicit SmErrorNode(const SmToken &rNodeToken)
+                : SmMathSymbolNode(SmNodeType::Error, rNodeToken) { SetText(OUString(MS_ERROR)); }
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Table node
+ *
+ * This is the root node for the formula tree. This node is also used for the
+ * STACK and BINOM commands. When used for root node, its
+ * children are instances of SmLineNode, and in some obscure cases the child
+ * can be an instance of SmExpressionNode, mainly when errors occur.
+ */
+class SmTableNode final : public SmStructureNode
+{
+    tools::Long mnFormulaBaseline;
+public:
+    explicit SmTableNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Table, rNodeToken)
+        , mnFormulaBaseline(0) { }
+
+    virtual const SmNode * GetLeftMost() const override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Gets the formula baseline.
+     * @return formula baseline
+     */
+    tools::Long GetFormulaBaseline() const;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** A line
+ *
+ * Used as child of SmTableNode when the SmTableNode is the root node of the
+ * formula tree.
+ */
+class SmLineNode : public SmStructureNode
+{
+    bool mbUseExtraSpaces;
+
+protected:
+    SmLineNode(SmNodeType eNodeType, const SmToken &rNodeToken)
+        : SmStructureNode(eNodeType, rNodeToken)
+        , mbUseExtraSpaces(true) { }
+
+public:
+    explicit SmLineNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Line, rNodeToken)
+        , mbUseExtraSpaces(true) { }
+
+    /**
+     * Sets if it going to use extra spaces.
+     * It is used to set if there has to be space between node while rendering.
+     * By default it is true.
+     * @param bVal
+     * @return
+     */
+    void  SetUseExtraSpaces(bool bVal) { mbUseExtraSpaces = bVal; }
+
+    /**
+     * Checks if it is using extra spaces.
+     * It is used for calculating space between nodes when rendering.
+     * By default it is true.
+     * @return is using extra spaces
+     */
+    bool  IsUseExtraSpaces() const { return mbUseExtraSpaces; };
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Expression node
+ *
+ * Used whenever you have an expression such as "A OVER {B + C}", here there is
+ * an expression node that allows "B + C" to be the denominator of the
+ * SmBinVerNode, that the OVER command creates.
+ */
+class SmExpressionNode final : public SmLineNode
+{
+public:
+    explicit SmExpressionNode(const SmToken &rNodeToken)
+        : SmLineNode(SmNodeType::Expression, rNodeToken) { }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Unary horizontal node
+ *
+ * The same as SmBinHorNode except this is for unary operators.
+ */
+class SmUnHorNode final : public SmStructureNode
+{
+public:
+    explicit SmUnHorNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::UnHor, rNodeToken, 2) { }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Root node
+ *
+ * Used for create square roots and other roots, example:
+ * \f$ \sqrt[\mbox{[Argument]}]{\mbox{[Body]}} \f$.
+ *
+ * Children:<BR>
+ * 0: Argument (optional)<BR>
+ * 1: Symbol (instance of SmRootSymbolNode)<BR>
+ * 2: Body<BR>
+ * Where argument is optional and may be NULL.
+ */
+class SmRootNode final : public SmStructureNode
+{
+public:
+    explicit SmRootNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Root, rNodeToken, 3) { }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+
+    /**
+     * Returns the node containing the data of the order of the root.
+     * @return order data
+     */
+    const SmNode* Argument() const { return const_cast<SmRootNode *>(this)->Argument(); }
+          SmNode* Argument()       { assert( GetNumSubNodes() == 3 ); return GetSubNode( 0 ); }
+
+    /**
+     * Returns the node containing the data of the character used for the root.
+     * @return symbol data
+     */
+    const SmRootSymbolNode* Symbol() const { return const_cast<SmRootNode *>(this)->Symbol(); }
+          SmRootSymbolNode* Symbol()       { assert( GetNumSubNodes() == 3 );
+                                             assert( GetSubNode( 1 )->GetType()
+                                                        == SmNodeType::RootSymbol );
+                                             return static_cast< SmRootSymbolNode* >
+                                                ( GetSubNode( 1 )); }
+
+    /**
+     * Returns the node containing the data inside the root.
+     * @return body data
+     */
+    const SmNode* Body() const { return const_cast<SmRootNode *>(this)->Body(); }
+          SmNode* Body()       { assert( GetNumSubNodes() == 3 ); return GetSubNode( 2 ); }
+
+};
+
+
+/** Binary horizontal node
+ *
+ * This node is used for binary operators. In a formula such as "A + B".
+ *
+ * Children:<BR>
+ * 0: Left operand<BR>
+ * 1: Binary operator<BR>
+ * 2: Right operand<BR>
+ *
+ * None of the children may be NULL.
+ */
+class SmBinHorNode final : public SmStructureNode
+{
+public:
+    explicit SmBinHorNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::BinHor, rNodeToken, 3) { }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+
+    /**
+     * Returns the node containing the data of the binary operator.
+     * @return symbol data
+     */
+    const SmNode* Symbol() const { return const_cast<SmBinHorNode *>(this)->Symbol(); }
+          SmNode* Symbol()       { assert( GetNumSubNodes() == 3 ); return GetSubNode( 1 ); }
+
+    /**
+     * Returns the node containing the data of the left operand.
+     * @return left operand data
+     */
+    const SmNode* LeftOperand() const { return const_cast<SmBinHorNode *>(this)->LeftOperand(); }
+          SmNode* LeftOperand()       { assert( GetNumSubNodes() == 3 ); return GetSubNode( 0 ); }
+
+    /**
+     * Returns the node containing the data of the right operand.
+     * @return right operand data
+     */
+    const SmNode* RightOperand() const { return const_cast<SmBinHorNode *>(this)->RightOperand(); }
+          SmNode* RightOperand()       { assert( GetNumSubNodes() == 3 ); return GetSubNode( 2 ); }
+};
+
+
+/** Binary horizontal node
+ *
+ * This node is used for creating the OVER command, consider the formula:
+ * "numerator OVER denominator", which looks like
+ * \f$ \frac{\mbox{numerator}}{\mbox{denominator}} \f$
+ *
+ * Children:<BR>
+ * 0: Numerator<BR>
+ * 1: Line (instance of SmRectangleNode)<BR>
+ * 2: Denominator<BR>
+ * None of the children may be NULL.
+ */
+class SmBinVerNode final : public SmStructureNode
+{
+public:
+    explicit SmBinVerNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::BinVer, rNodeToken, 3) { }
+
+    virtual const SmNode * GetLeftMost() const override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Binary diagonal node
+ *
+ * Used for implementing the WIDESLASH command, example: "A WIDESLASH B".
+ *
+ * Children:<BR>
+ * 0: Left operand<BR>
+ * 1: right operand<BR>
+ * 2: Line (instance of SmPolyLineNode).<BR>
+ * None of the children may be NULL.
+ */
+class SmBinDiagonalNode final : public SmStructureNode
+{
+    bool mbAscending;
+
+    /**
+     * Returns the position and size of the diagonal line by reference.
+     * @param rPos
+     * @param rSize
+     * @param rDiagPoint
+     * @param fAngleDeg
+     * @return position and size of the diagonal line
+     */
+    void GetOperPosSize(Point &rPos, Size &rSize, const Point &rDiagPoint, double fAngleDeg) const;
+
+public:
+    explicit SmBinDiagonalNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::BinDiagonal, rNodeToken, 3)
+        , mbAscending(false) { }
+
+    /**
+     * Checks if it is of ascending type.
+     * Ascending:
+     *     / b
+     *    /
+     * a /
+     * Descending:
+     * a \
+     *    \
+     *     \ b
+     * @return ascending.
+     */
+    bool    IsAscending() const { return mbAscending; }
+
+    /**
+     * Sets if the wideslash is ascending to bVal.
+     * @param bVal
+     * @return
+     */
+    void    SetAscending(bool bVal)  { mbAscending = bVal; }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Enum used to index sub-/supscripts in the 'maSubNodes' array
+ * in 'SmSubSupNode'
+ *
+ * See graphic for positions at char:
+ *
+ * \code
+ *      CSUP
+ *
+ * LSUP H  H RSUP
+ *      H  H
+ *      HHHH
+ *      H  H
+ * LSUB H  H RSUB
+ *
+ *      CSUB
+ * \endcode
+ */
+enum SmSubSup
+{   CSUB, CSUP, RSUB, RSUP, LSUB, LSUP
+};
+
+/** numbers of entries in the above enum (that is: the number of possible
+ * sub-/supscripts)
+ */
+#define SUBSUP_NUM_ENTRIES 6
+
+/** Super- and subscript node
+ *
+ * Used for creating super- and subscripts for commands such as:
+ * "^", "_", "lsup", "lsub", "csup" and "csub".
+ * Example: "A^2" which looks like: \f$ A^2 \f$
+ *
+ * This node is also used for creating limits on SmOperNode, when
+ * "FROM" and "TO" commands are used with "INT", "SUM" or similar.
+ *
+ * Children of this node can be enumerated using the SmSubSup enum.
+ * Please note that children may be NULL, except for the body.
+ * It is recommended that you access children using GetBody() and
+ * GetSubSup().
+ */
+class SmSubSupNode final : public SmStructureNode
+{
+    bool mbUseLimits;
+
+public:
+    explicit SmSubSupNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::SubSup, rNodeToken, 1 + SUBSUP_NUM_ENTRIES)
+        , mbUseLimits(false) { }
+
+    /**
+     * Returns the node with the data of what has to be superindex or subindex.
+     * @return body data
+     */
+    const SmNode * GetBody() const { return const_cast<SmSubSupNode *>(this)->GetBody(); }
+          SmNode * GetBody()       { return GetSubNode(0); }
+
+    /**
+     * Checks if it is going to be used for a limit.
+     * Example lim from { x toward 0 } { {sin x}over x } = 1
+     * @return is a limit
+     */
+    bool  IsUseLimits() const { return mbUseLimits; };
+
+    /**
+     * Sets if it is going to be used for a limit to bVal.
+     * @param bVal
+     * @return
+     */
+    void  SetUseLimits(bool bVal) { mbUseLimits = bVal; }
+
+    /**
+     * Gets the node with the data of what has to be superindex or subindex.
+     * The position to check is given by eSubSup.
+     * @remarks this method may return NULL.
+     * @param eSubSup
+     * @return body data
+     */
+     const SmNode * GetSubSup(SmSubSup eSubSup) const { return const_cast< SmSubSupNode* >
+                                                            ( this )->GetSubSup( eSubSup ); }
+           SmNode * GetSubSup(SmSubSup eSubSup)       { return GetSubNode(1 + eSubSup); };
+
+    /**
+     * Sets the node with the data of what has to be superindex or subindex.
+     * @param pScript
+     */
+    void SetBody(SmNode* pBody) { SetSubNode(0, pBody); }
+
+     /**
+     * Sets the node with the data of what has to be superindex or subindex.
+     * The position to check is given by eSubSup.
+     * @param eSubSup
+     * @param pScript
+     */
+    void SetSubSup(SmSubSup eSubSup, SmNode* pScript) { SetSubNode( 1 + eSubSup, pScript); }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+
+};
+
+
+/** Node for brace construction
+ *
+ * Used for "lbrace [body] rbrace" and similar constructions.
+ * Should look like \f$ \{\mbox{[body]}\} \f$
+ *
+ * Children:<BR>
+ * 0: Opening brace<BR>
+ * 1: Body (usually SmBracebodyNode)<BR>
+ * 2: Closing brace<BR>
+ * None of the children can be NULL.
+ *
+ * Note that child 1 (Body) is usually SmBracebodyNode, but it can also be e.g. SmExpressionNode.
+ */
+class SmBraceNode final : public SmStructureNode
+{
+public:
+    explicit SmBraceNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Brace, rNodeToken, 3) { }
+
+    /**
+     * Returns the node containing the data of the opening brace.
+     * @return opening brace data
+     */
+    const SmMathSymbolNode* OpeningBrace() const { return const_cast<SmBraceNode *>
+                                                       (this)->OpeningBrace(); }
+    SmMathSymbolNode* OpeningBrace()             { assert( GetNumSubNodes() == 3 );
+                                                   assert( GetSubNode( 0 )->GetType()
+                                                               == SmNodeType::Math );
+                                                   return static_cast< SmMathSymbolNode* >
+                                                       ( GetSubNode( 0 )); }
+
+    /**
+     * Returns the node containing the data of what is between braces.
+     * @return body data
+     */
+    const SmNode* Body() const { return const_cast<SmBraceNode *>(this)->Body(); }
+    SmNode* Body()             { assert( GetNumSubNodes() == 3 ); return GetSubNode( 1 ); }
+
+    /**
+     * Returns the node containing the data of the closing brace.
+     * @return closing brace data
+     */
+    const SmMathSymbolNode* ClosingBrace() const { return const_cast<SmBraceNode *>
+                                                       (this)->ClosingBrace(); }
+    SmMathSymbolNode* ClosingBrace()             { assert( GetNumSubNodes() == 3 );
+                                                   assert( GetSubNode( 2 )->GetType()
+                                                               == SmNodeType::Math );
+                                                   return static_cast< SmMathSymbolNode* >
+                                                       ( GetSubNode( 2 )); }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Body of an SmBraceNode
+ *
+ * This usually only has one child an SmExpressionNode, however, it can also
+ * have other children.
+ * Consider the formula "lbrace [body1] mline [body2] rbrace", looks like:
+ * \f$ \{\mbox{[body1] | [body2]}\} \f$.
+ * In this case SmBracebodyNode will have three children, "[body1]", "|" and
+ * [body2].
+ */
+class SmBracebodyNode final : public SmStructureNode
+{
+    tools::Long mnBodyHeight;
+
+public:
+    explicit SmBracebodyNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Bracebody, rNodeToken)
+        , mnBodyHeight(0) { }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void    Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+    tools::Long GetBodyHeight() const { return mnBodyHeight; }
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Node for vertical brace construction
+ *
+ * Used to implement commands "[body] underbrace [script]" and
+ * "[body] overbrace [script]".
+ * Underbrace should look like this \f$ \underbrace{\mbox{body}}_{\mbox{script}}\f$.
+ *
+ * Children:<BR>
+ * 0: body<BR>
+ * 1: brace<BR>
+ * 2: script<BR>
+ * (None of these children are optional, e.g. they must all be not NULL).
+ */
+class SmVerticalBraceNode final : public SmStructureNode
+{
+public:
+    explicit SmVerticalBraceNode(const SmToken &rNodeToken)
+    : SmStructureNode(SmNodeType::VerticalBrace, rNodeToken, 3) { }
+
+    /**
+     * Returns the node containing the data of what the brace is pointing for.
+     * body { script }
+     * @return body data
+     */
+    const SmNode* Body() const { return const_cast<SmVerticalBraceNode *>(this)->Body(); }
+    SmNode* Body()             { assert( GetNumSubNodes() == 3 ); return GetSubNode( 0 ); }
+
+    /**
+     * Returns the node containing the data of the brace.
+     * @return brace data
+     */
+    const SmMathSymbolNode* Brace() const { return const_cast<SmVerticalBraceNode *>
+                                                (this)->Brace(); }
+          SmMathSymbolNode* Brace()       { assert( GetNumSubNodes() == 3 );
+                                            assert( GetSubNode( 1 )->GetType()
+                                                        == SmNodeType::Math );
+                                            return static_cast< SmMathSymbolNode* >
+                                                ( GetSubNode( 1 )); }
+
+    /**
+     * Returns the node containing the data of what is in the brace.
+     * body { script }
+     * @return opening brace data
+     */
+    const SmNode* Script() const { return const_cast<SmVerticalBraceNode *>(this)->Script(); }
+          SmNode* Script()       { assert( GetNumSubNodes() == 3 ); return GetSubNode( 2 ); }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+/** Operation Node
+ *
+ * Used for commands like SUM, INT and similar.
+ *
+ * Children:<BR>
+ * 0: Operation (instance of SmMathSymbolNode or SmSubSupNode)<BR>
+ * 1: Body<BR>
+ * None of the children may be NULL.
+ *
+ */
+class SmOperNode final : public SmStructureNode
+{
+public:
+    explicit SmOperNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Oper, rNodeToken, 2) { }
+
+    /**
+     * Returns the node with the operator data
+     * @return operator data
+     */
+    const SmNode * GetSymbol() const { return const_cast<SmOperNode *>(this)->GetSymbol(); }
+          SmNode * GetSymbol();
+
+    /**
+     * Returns the height of the node in base to the symbol
+     * ( rSymbol contains the operator data )
+     * and the font format ( rFormat ).
+     * @param rSymbol
+     * @param rFormat
+     * @return node's height
+     */
+    tools::Long CalcSymbolHeight(const SmNode &rSymbol, const SmFormat &rFormat) const;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Node used for alignment
+ *
+ * This node has exactly one child at index 0.
+ */
+class SmAlignNode final : public SmStructureNode
+{
+public:
+    explicit SmAlignNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Align, rNodeToken) { }
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Attribute node
+ *
+ * Used to give an attribute to another node. Used for commands such as:
+ * UNDERLINE, OVERLINE, OVERSTRIKE, WIDEVEC, WIDEHARPOON, WIDEHAT and WIDETILDE.
+ *
+ * Children:<BR>
+ * 0: Attribute<BR>
+ * 1: Body<BR>
+ * None of these may be NULL.
+ */
+class SmAttributeNode final : public SmStructureNode
+{
+public:
+    explicit SmAttributeNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Attribute, rNodeToken, 2) {}
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+
+    /**
+     * Gets the attribute data.
+     * @return attribute data
+     */
+    const SmNode* Attribute() const { return const_cast<SmAttributeNode *>(this)->Attribute(); }
+          SmNode* Attribute()       { assert( GetNumSubNodes() == 2 ); return GetSubNode( 0 ); }
+
+    /**
+     * Gets the body data ( the nodes affected by the attribute ).
+     * @return body data
+     */
+    const SmNode* Body() const { return const_cast<SmAttributeNode *>(this)->Body(); }
+          SmNode* Body()      { assert( GetNumSubNodes() == 2 ); return GetSubNode( 1 ); }
+};
+
+
+/** Font node
+ *
+ * Used to change the font of its children.
+ */
+class SmFontNode final : public SmStructureNode
+{
+    FontSizeType meSizeType;
+    Fraction     maFontSize;
+
+public:
+    explicit SmFontNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Font, rNodeToken)
+        , meSizeType(FontSizeType::MULTIPLY)
+        , maFontSize(1) { }
+
+    /**
+     * Sets font size to rValue in nType mode.
+     * Check FontSizeType for details.
+     * @param rValue
+     * @param nType
+     * @return
+     */
+    void SetSizeParameter(const Fraction &rValue, FontSizeType nType)
+                            { meSizeType = nType; maFontSize = rValue; }
+
+    /**
+     * Returns the font size.
+     * @return font size.
+     */
+    const Fraction & GetSizeParameter() const {return maFontSize;}
+
+    /**
+     * Returns the font size type.
+     * Check FontSizeType for details.
+     * @return font size type.
+     */
+    FontSizeType GetSizeType() const {return meSizeType;}
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Matrix node
+ *
+ * Used to implement the MATRIX command, example:
+ * "matrix{ 1 # 2 ## 3 # 4}".
+ */
+class SmMatrixNode final : public SmStructureNode
+{
+    sal_uInt16 mnNumRows,
+               mnNumCols;
+
+public:
+    explicit SmMatrixNode(const SmToken &rNodeToken)
+        : SmStructureNode(SmNodeType::Matrix, rNodeToken)
+        , mnNumRows(0)
+        , mnNumCols(0) { }
+
+    /**
+     * Gets the number of rows of the matrix.
+     * @return rows number
+     */
+    sal_uInt16 GetNumRows() const {return mnNumRows;}
+
+    /**
+     * Gets the number of columns of the matrix.
+     * @return columns number
+     */
+    sal_uInt16 GetNumCols() const {return mnNumCols;}
+
+    /**
+     * Sets the dimensions of the matrix.
+     * @param nMatrixRows
+     * @param nMatrixCols
+     * @return
+     */
+    void SetRowCol(sal_uInt16 nMatrixRows, sal_uInt16 nMatrixCols)
+                     { mnNumRows = nMatrixRows; mnNumCols = nMatrixCols; }
+
+    virtual const SmNode * GetLeftMost() const override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+};
+
+
+/** Node for whitespace
+ *
+ * Used to implement the commands "~" and "`". This node is just a blank space.
+ */
+class SmBlankNode final : public SmGraphicNode
+{
+    sal_uInt16 mnNum;
+
+public:
+    explicit SmBlankNode(const SmToken &rNodeToken)
+        : SmGraphicNode(SmNodeType::Blank, rNodeToken)
+        , mnNum(0) { }
+
+    void         IncreaseBy(const SmToken &rToken, sal_uInt32 nMultiplyBy = 1);
+    void         Clear() { mnNum = 0; }
+    sal_uInt16   GetBlankNum() const { return mnNum; }
+    void         SetBlankNum(sal_uInt16 nNumber) { mnNum = nNumber; }
+
+    /**
+     * Prepare preliminary settings about font and text
+     * (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
+     * @param rFormat
+     * @param rDocShell
+     * @param nDepth
+     * @return
+     */
+    virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
+                         int nDepth) override;
+
+    /**
+     * Prepares the SmRect to render.
+     * @param rDev
+     * @param rFormat
+     * @return
+     */
+    virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
+
+    /**
+     * Accept a visitor.
+     * Calls the method for this class on the visitor.
+     * @param pVisitor
+     * @return
+     */
+    void Accept(SmVisitor* pVisitor) override;
+
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/nodetype.hxx b/starmath/inc/nodetype.hxx
new file mode 100644
index 000000000..f0bf28cec
--- /dev/null
+++ b/starmath/inc/nodetype.hxx
@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/**
+   * This file provides definition for the nodetypes.
+   * Also provides analysis of the node functions
+   */
+
+enum class SmNodeType : int_fast16_t
+{
+    Table, // tree header
+    Brace, // () [] {}
+    Bracebody, // content of () [] {}
+    Oper, // largeop
+    Align, // alignment
+    Attribute, // attributes
+    Font, // fonts
+    UnHor, // unmo
+    BinHor, // binmo
+    BinVer, // over frac
+    BinDiagonal, // slash
+    SubSup, // lsub lsup rsub rsup csub csup
+    Matrix, // binom matrix
+    Place, // <?>
+    Text, // "text"
+    Special, // %glyph
+    GlyphSpecial, // %glyph
+    Math, // operator value
+    Blank, // ~
+    Error, // Syntax error
+    Line, // a line of math until newline
+    Expression, // { content in here }
+    PolyLine, // ^
+    Root, // root node
+    RootSymbol, // 3 of cubic root
+    Rectangle, //just structural
+    VerticalBrace, // vertical {}
+    MathIdent // identities and variables
+};
+
+namespace starmathdatabase
+{
+inline bool isStructuralNode(SmNodeType aNodeTypeName)
+{
+    return aNodeTypeName == SmNodeType::Table || aNodeTypeName == SmNodeType::Line
+           || aNodeTypeName == SmNodeType::UnHor || aNodeTypeName == SmNodeType::BinHor
+           || aNodeTypeName == SmNodeType::BinVer || aNodeTypeName == SmNodeType::BinDiagonal
+           || aNodeTypeName == SmNodeType::SubSup || aNodeTypeName == SmNodeType::Matrix
+           || aNodeTypeName == SmNodeType::Root || aNodeTypeName == SmNodeType::Expression
+           || aNodeTypeName == SmNodeType::Brace || aNodeTypeName == SmNodeType::Bracebody
+           || aNodeTypeName == SmNodeType::Oper || aNodeTypeName == SmNodeType::Align
+           || aNodeTypeName == SmNodeType::Attribute || aNodeTypeName == SmNodeType::Font;
+}
+
+inline bool isBinOperatorNode(SmNodeType aNodeTypeName)
+{
+    return aNodeTypeName == SmNodeType::BinHor || aNodeTypeName == SmNodeType::BinVer
+           || aNodeTypeName == SmNodeType::BinDiagonal || aNodeTypeName == SmNodeType::SubSup;
+}
+
+inline bool isUnOperatorNode(SmNodeType aNodeTypeName)
+{
+    return aNodeTypeName == SmNodeType::UnHor;
+}
+
+inline bool isOperatorNode(SmNodeType aNodeTypeName)
+{
+    return aNodeTypeName == SmNodeType::BinHor || aNodeTypeName == SmNodeType::BinVer
+           || aNodeTypeName == SmNodeType::BinDiagonal || aNodeTypeName == SmNodeType::SubSup
+           || aNodeTypeName == SmNodeType::UnHor || aNodeTypeName == SmNodeType::Oper;
+}
+
+inline bool isStandaloneNode(SmNodeType aNodeTypeName)
+{
+    return aNodeTypeName == SmNodeType::Text || aNodeTypeName == SmNodeType::Special
+           || aNodeTypeName == SmNodeType::GlyphSpecial || aNodeTypeName == SmNodeType::Math
+           || aNodeTypeName == SmNodeType::Blank || aNodeTypeName == SmNodeType::MathIdent;
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/parse.hxx b/starmath/inc/parse.hxx
new file mode 100644
index 000000000..a62d515b5
--- /dev/null
+++ b/starmath/inc/parse.hxx
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/** Parses the starmath code and creates the nodes.
+  *
+  */
+
+#pragma once
+
+#include "parsebase.hxx"
+
+namespace starmathdatabase
+{
+
+AbstractSmParser* GetDefaultSmParser();
+
+AbstractSmParser* GetVersionSmParser(sal_uInt16 nVersion);
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/parse5.hxx b/starmath/inc/parse5.hxx
new file mode 100644
index 000000000..5b7237867
--- /dev/null
+++ b/starmath/inc/parse5.hxx
@@ -0,0 +1,122 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/** Parses the starmath code and creates the nodes.
+  *
+  */
+
+#pragma once
+
+#include "parsebase.hxx"
+#include <unotools/charclass.hxx>
+
+class SmParser5 final : public AbstractSmParser
+{
+    OUString m_aBufferString;
+    SmToken m_aCurToken;
+    ESelection m_aCurESelection;
+    std::vector<SmErrorDesc> m_aErrDescList;
+    int m_nCurError;
+    sal_Int32 m_nBufferIndex, m_nTokenIndex;
+    sal_Int32 m_nRow, // 1-based
+        m_nColOff; // 0-based
+    bool m_bImportSymNames, m_bExportSymNames;
+    sal_Int32 m_nParseDepth;
+
+    // map of used symbols (used to reduce file size by exporting only actually used symbols)
+    std::set<OUString> m_aUsedSymbols;
+
+    // CharClass representing a locale for parsing numbers
+    CharClass m_aNumCC;
+    // pointer to System locale's CharClass, which is alive inside SM_MOD()
+    const CharClass* m_pSysCC;
+
+    SmParser5(const SmParser5&) = delete;
+    SmParser5& operator=(const SmParser5&) = delete;
+
+    // Moves between tokens inside starmath code.
+    void NextToken();
+    void NextTokenColor(SmTokenType dvipload);
+    void NextTokenFontSize();
+    sal_Int32 GetTokenIndex() const { return m_nTokenIndex; }
+    void Replace(sal_Int32 nPos, sal_Int32 nLen, const OUString& rText);
+
+    inline bool TokenInGroup(TG nGroup);
+
+    // grammar
+    std::unique_ptr<SmTableNode> DoTable();
+    std::unique_ptr<SmNode> DoLine();
+    std::unique_ptr<SmNode> DoExpression(bool bUseExtraSpaces = true);
+    std::unique_ptr<SmNode> DoRelation();
+    std::unique_ptr<SmNode> DoSum();
+    std::unique_ptr<SmNode> DoProduct();
+    std::unique_ptr<SmNode> DoSubSup(TG nActiveGroup, std::unique_ptr<SmNode> xGivenNode);
+    std::unique_ptr<SmNode> DoSubSupEvaluate(std::unique_ptr<SmNode> xGivenNode);
+    std::unique_ptr<SmNode> DoOpSubSup();
+    std::unique_ptr<SmNode> DoPower();
+    std::unique_ptr<SmBlankNode> DoBlank();
+    std::unique_ptr<SmNode> DoTerm(bool bGroupNumberIdent);
+    std::unique_ptr<SmNode> DoEscape();
+    std::unique_ptr<SmOperNode> DoOperator();
+    std::unique_ptr<SmNode> DoOper();
+    std::unique_ptr<SmStructureNode> DoUnOper();
+    std::unique_ptr<SmNode> DoAlign(bool bUseExtraSpaces = true);
+    std::unique_ptr<SmStructureNode> DoFontAttribute();
+    std::unique_ptr<SmStructureNode> DoAttribute();
+    std::unique_ptr<SmStructureNode> DoFont();
+    std::unique_ptr<SmStructureNode> DoFontSize();
+    std::unique_ptr<SmStructureNode> DoColor();
+    std::unique_ptr<SmStructureNode> DoBrace();
+    std::unique_ptr<SmBracebodyNode> DoBracebody(bool bIsLeftRight);
+    std::unique_ptr<SmNode> DoEvaluate();
+    std::unique_ptr<SmTextNode> DoFunction();
+    std::unique_ptr<SmTableNode> DoBinom();
+    std::unique_ptr<SmBinVerNode> DoFrac();
+    std::unique_ptr<SmStructureNode> DoStack();
+    std::unique_ptr<SmStructureNode> DoMatrix();
+    std::unique_ptr<SmSpecialNode> DoSpecial();
+    std::unique_ptr<SmGlyphSpecialNode> DoGlyphSpecial();
+    std::unique_ptr<SmExpressionNode> DoError(SmParseError Error);
+    // end of grammar
+
+public:
+    SmParser5();
+    virtual ~SmParser5();
+
+    /** Parse rBuffer to formula tree */
+    std::unique_ptr<SmTableNode> Parse(const OUString& rBuffer);
+    /** Parse rBuffer to formula subtree that constitutes an expression */
+    std::unique_ptr<SmNode> ParseExpression(const OUString& rBuffer);
+
+    const OUString& GetText() const { return m_aBufferString; };
+
+    bool IsImportSymbolNames() const { return m_bImportSymNames; }
+    void SetImportSymbolNames(bool bVal) { m_bImportSymNames = bVal; }
+    bool IsExportSymbolNames() const { return m_bExportSymNames; }
+    void SetExportSymbolNames(bool bVal) { m_bExportSymNames = bVal; }
+
+    const SmErrorDesc* NextError();
+    const SmErrorDesc* PrevError();
+    const SmErrorDesc* GetError() const;
+    const std::set<OUString>& GetUsedSymbols() const { return m_aUsedSymbols; }
+};
+
+inline bool SmParser5::TokenInGroup(TG nGroup) { return bool(m_aCurToken.nGroup & nGroup); }
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/parsebase.hxx b/starmath/inc/parsebase.hxx
new file mode 100644
index 000000000..ffa9b538a
--- /dev/null
+++ b/starmath/inc/parsebase.hxx
@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/** Parses the starmath code and creates the nodes.
+  *
+  */
+
+#pragma once
+
+#include <unotools/resmgr.hxx>
+
+#include "node.hxx"
+
+#include <set>
+
+#define DEPTH_LIMIT 1024
+
+// Those are the errors that the parser may encounter.
+enum class SmParseError : uint_fast8_t
+{
+    None = 0,
+    UnexpectedChar = 1,
+    UnexpectedToken = 2,
+    PoundExpected = 3,
+    ColorExpected = 4,
+    LgroupExpected = 5,
+    RgroupExpected = 6,
+    LbraceExpected = 7,
+    RbraceExpected = 8,
+    ParentMismatch = 9,
+    RightExpected = 10,
+    FontExpected = 11,
+    SizeExpected = 12,
+    DoubleAlign = 13,
+    DoubleSubsupscript = 14,
+    NumberExpected = 15
+};
+
+struct SmErrorDesc
+{
+    SmParseError m_eType;
+    SmNode* m_pNode;
+    OUString m_aText;
+
+    SmErrorDesc(SmParseError eType, SmNode* pNode, OUString aText)
+        : m_eType(eType)
+        , m_pNode(pNode)
+        , m_aText(aText)
+    {
+    }
+};
+
+class DepthProtect
+{
+private:
+    sal_Int32& m_rParseDepth;
+
+public:
+    DepthProtect(sal_Int32& rParseDepth)
+        : m_rParseDepth(rParseDepth)
+    {
+        ++m_rParseDepth;
+        if (m_rParseDepth > DEPTH_LIMIT)
+            throw std::range_error("parser depth limit");
+    }
+    ~DepthProtect() { --m_rParseDepth; }
+};
+
+namespace starmathdatabase
+{
+// Must be in sync with SmParseError list
+extern const TranslateId SmParseErrorDesc[16];
+
+OUString getParseErrorDesc(SmParseError err);
+}
+
+class AbstractSmParser
+{
+public:
+    virtual ~AbstractSmParser() {}
+
+    /** Parse rBuffer to formula tree */
+    virtual std::unique_ptr<SmTableNode> Parse(const OUString& rBuffer) = 0;
+    /** Parse rBuffer to formula subtree that constitutes an expression */
+    virtual std::unique_ptr<SmNode> ParseExpression(const OUString& rBuffer) = 0;
+
+    virtual const OUString& GetText() const = 0;
+
+    virtual bool IsImportSymbolNames() const = 0;
+    virtual void SetImportSymbolNames(bool bVal) = 0;
+    virtual bool IsExportSymbolNames() const = 0;
+    virtual void SetExportSymbolNames(bool bVal) = 0;
+
+    virtual const SmErrorDesc* NextError() = 0;
+    virtual const SmErrorDesc* PrevError() = 0;
+    virtual const SmErrorDesc* GetError() const = 0;
+    virtual const std::set<OUString>& GetUsedSymbols() const = 0;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/pch/precompiled_sm.cxx b/starmath/inc/pch/precompiled_sm.cxx
new file mode 100644
index 000000000..f5d78e96f
--- /dev/null
+++ b/starmath/inc/pch/precompiled_sm.cxx
@@ -0,0 +1,12 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "precompiled_sm.hxx"
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/pch/precompiled_sm.hxx b/starmath/inc/pch/precompiled_sm.hxx
new file mode 100644
index 000000000..2c8ce3f5b
--- /dev/null
+++ b/starmath/inc/pch/precompiled_sm.hxx
@@ -0,0 +1,177 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ This file has been autogenerated by update_pch.sh. It is possible to edit it
+ manually (such as when an include file has been moved/renamed/removed). All such
+ manual changes will be rewritten by the next run of update_pch.sh (which presumably
+ also fixes all possible problems, so it's usually better to use it).
+
+ Generated on 2021-09-12 11:52:19 using:
+ ./bin/update_pch starmath sm --cutoff=5 --exclude:system --exclude:module --include:local
+
+ If after updating build fails, use the following command to locate conflicting headers:
+ ./bin/update_pch_bisect ./starmath/inc/pch/precompiled_sm.hxx "make starmath.build" --find-conflicts
+*/
+
+#include <sal/config.h>
+#if PCH_LEVEL >= 1
+#include <algorithm>
+#include <cassert>
+#include <cstddef>
+#include <cstdlib>
+#include <cstring>
+#include <functional>
+#include <limits.h>
+#include <limits>
+#include <memory>
+#include <new>
+#include <optional>
+#include <ostream>
+#include <string>
+#include <string_view>
+#include <type_traits>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+#include <boost/property_tree/ptree_fwd.hpp>
+#endif // PCH_LEVEL >= 1
+#if PCH_LEVEL >= 2
+#include <osl/diagnose.h>
+#include <osl/mutex.hxx>
+#include <rtl/alloc.h>
+#include <rtl/character.hxx>
+#include <rtl/locale.h>
+#include <rtl/math.hxx>
+#include <rtl/ref.hxx>
+#include <rtl/string.hxx>
+#include <rtl/stringconcat.hxx>
+#include <rtl/stringutils.hxx>
+#include <rtl/textenc.h>
+#include <rtl/ustrbuf.h>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.h>
+#include <rtl/ustring.hxx>
+#include <sal/log.hxx>
+#include <sal/types.h>
+#include <vcl/bitmap.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/cairo.hxx>
+#include <vcl/devicecoordinate.hxx>
+#include <vcl/dllapi.h>
+#include <vcl/errcode.hxx>
+#include <vcl/font.hxx>
+#include <vcl/gradient.hxx>
+#include <vcl/mapmod.hxx>
+#include <vcl/metaactiontypes.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/region.hxx>
+#include <vcl/rendercontext/AddFontSubstituteFlags.hxx>
+#include <vcl/rendercontext/AntialiasingFlags.hxx>
+#include <vcl/rendercontext/DrawGridFlags.hxx>
+#include <vcl/rendercontext/DrawImageFlags.hxx>
+#include <vcl/rendercontext/DrawModeFlags.hxx>
+#include <vcl/rendercontext/DrawTextFlags.hxx>
+#include <vcl/rendercontext/GetDefaultFontFlags.hxx>
+#include <vcl/rendercontext/ImplMapRes.hxx>
+#include <vcl/rendercontext/InvertFlags.hxx>
+#include <vcl/rendercontext/RasterOp.hxx>
+#include <vcl/rendercontext/SalLayoutFlags.hxx>
+#include <vcl/rendercontext/State.hxx>
+#include <vcl/rendercontext/SystemTextColorFlags.hxx>
+#include <vcl/salnativewidgets.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/vclenum.hxx>
+#include <vcl/vclptr.hxx>
+#include <vcl/vclreferencebase.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/wall.hxx>
+#endif // PCH_LEVEL >= 2
+#if PCH_LEVEL >= 3
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <basegfx/vector/b2enums.hxx>
+#include <com/sun/star/awt/DeviceInfo.hpp>
+#include <com/sun/star/drawing/LineCap.hpp>
+#include <com/sun/star/i18n/WordType.hpp>
+#include <com/sun/star/text/textfield/Type.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.h>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <comphelper/comphelperdllapi.h>
+#include <comphelper/fileformat.h>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/propertysetinfo.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weakref.hxx>
+#include <editeng/editdata.hxx>
+#include <editeng/editengdllapi.h>
+#include <editeng/editobj.hxx>
+#include <editeng/editstat.hxx>
+#include <editeng/eedata.hxx>
+#include <editeng/macros.hxx>
+#include <i18nlangtag/lang.h>
+#include <o3tl/cow_wrapper.hxx>
+#include <o3tl/strong_int.hxx>
+#include <o3tl/typed_flags_set.hxx>
+#include <o3tl/unit_conversion.hxx>
+#include <salhelper/simplereferenceobject.hxx>
+#include <sfx2/dllapi.h>
+#include <sfx2/docfile.hxx>
+#include <sfx2/shell.hxx>
+#include <sot/storage.hxx>
+#include <svl/SfxBroadcaster.hxx>
+#include <svl/hint.hxx>
+#include <svl/itemset.hxx>
+#include <svl/languageoptions.hxx>
+#include <svl/poolitem.hxx>
+#include <svl/stritem.hxx>
+#include <svl/style.hxx>
+#include <svl/svldllapi.h>
+#include <svl/typedwhich.hxx>
+#include <svx/svxdllapi.h>
+#include <tools/color.hxx>
+#include <tools/degree.hxx>
+#include <tools/diagnose_ex.h>
+#include <tools/gen.hxx>
+#include <tools/lineend.hxx>
+#include <tools/link.hxx>
+#include <tools/long.hxx>
+#include <tools/mapunit.hxx>
+#include <tools/poly.hxx>
+#include <tools/ref.hxx>
+#include <tools/solar.h>
+#include <tools/toolsdllapi.h>
+#include <unotools/fontdefs.hxx>
+#include <unotools/options.hxx>
+#include <unotools/streamwrap.hxx>
+#include <unotools/unotoolsdllapi.h>
+#include <xmloff/dllapi.h>
+#endif // PCH_LEVEL >= 3
+#if PCH_LEVEL >= 4
+#include <ElementsDockingWindow.hxx>
+#include <cfgitem.hxx>
+#include <dialog.hxx>
+#include <document.hxx>
+#include <node.hxx>
+#include <smmod.hxx>
+#include <starmathdatabase.hxx>
+#include <symbol.hxx>
+#include <unomodel.hxx>
+#include <utility.hxx>
+#include <view.hxx>
+#include <visitors.hxx>
+#include <xparsmlbase.hxx>
+#endif // PCH_LEVEL >= 4
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/rect.hxx b/starmath/inc/rect.hxx
new file mode 100644
index 000000000..0b28581a0
--- /dev/null
+++ b/starmath/inc/rect.hxx
@@ -0,0 +1,216 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <rtl/ustring.hxx>
+#include <sal/log.hxx>
+#include <tools/gen.hxx>
+#include <vcl/outdev.hxx>
+
+class SmFormat;
+
+
+inline tools::Long SmFromTo(tools::Long nFrom, tools::Long nTo, double fRelDist)
+{
+    return nFrom + static_cast<tools::Long>(fRelDist * (nTo - nFrom));
+}
+
+
+// SmRect
+// ... (to be done)
+// This Implementation assumes that the x-axis points to the right and the
+// y-axis to the bottom.
+// Note: however, italic spaces can be negative!
+
+
+// possible positions and alignments for the 'AlignTo' function
+enum class RectPos
+{
+    Left, // align the current object to the left of the argument
+    Right,
+    Top,
+    Bottom,
+    Attribute
+};
+
+enum class RectHorAlign
+{
+    Left,
+    Center,
+    Right
+};
+
+enum class RectVerAlign
+{
+    Top,
+    Mid,
+    Bottom,
+    Baseline,
+    CenterY,
+    AttributeHi,
+    AttributeMid,
+    AttributeLo
+};
+
+// different methods of copying baselines and mid's in 'ExtendBy' function
+enum class RectCopyMBL
+{
+    This,   // keep baseline of current object even if it has none
+    Arg,    // as above but for the argument
+    None,   // result will have no baseline
+    Xor     // if current object has a baseline keep it else copy
+            //   the arguments baseline (even if it has none)
+};
+
+
+class SmRect
+{
+    Point   aTopLeft;
+    Size    aSize;
+    tools::Long    nBaseline,
+            nAlignT,
+            nAlignM,
+            nAlignB,
+            nGlyphTop,
+            nGlyphBottom,
+            nItalicLeftSpace,
+            nItalicRightSpace,
+            nLoAttrFence,
+            nHiAttrFence;
+    sal_uInt16  nBorderWidth;
+    bool    bHasBaseline,
+            bHasAlignInfo;
+
+    inline  void CopyMBL(const SmRect& rRect);
+            void CopyAlignInfo(const SmRect& rRect);
+
+            void Union(const SmRect &rRect);
+
+public:
+            SmRect();
+            SmRect(const OutputDevice &rDev, const SmFormat *pFormat,
+                   const OUString &rText, sal_uInt16 nBorderWidth);
+            SmRect(tools::Long nWidth, tools::Long nHeight);
+
+
+            sal_uInt16  GetBorderWidth() const  { return nBorderWidth; }
+
+            void SetItalicSpaces(tools::Long nLeftSpace, tools::Long nRightSpace);
+
+            void SetWidth(sal_uLong nWidth)     { aSize.setWidth(nWidth); }
+
+            void SetLeft(tools::Long nLeft);
+            void SetRight(tools::Long nRight);
+            void SetBottom(tools::Long nBottom);
+            void SetTop(tools::Long nTop);
+
+            const Point & GetTopLeft() const { return aTopLeft; }
+
+            tools::Long GetTop()     const { return GetTopLeft().Y(); }
+            tools::Long GetLeft()    const { return GetTopLeft().X(); }
+            tools::Long GetBottom()  const { return GetTop() + GetHeight() - 1; }
+            tools::Long GetRight()   const { return GetLeft() + GetWidth() - 1; }
+            tools::Long GetCenterY() const { return (GetTop() + GetBottom()) / 2; }
+            tools::Long GetWidth()   const { return GetSize().Width(); }
+            tools::Long GetHeight()  const { return GetSize().Height(); }
+
+            tools::Long GetItalicLeftSpace()  const { return nItalicLeftSpace; }
+            tools::Long GetItalicRightSpace() const { return nItalicRightSpace; }
+
+            tools::Long GetHiAttrFence() const     { return nHiAttrFence; }
+            tools::Long GetLoAttrFence() const     { return nLoAttrFence; }
+
+            tools::Long GetItalicLeft() const      { return GetLeft() - GetItalicLeftSpace(); }
+            tools::Long GetItalicCenterX() const   { return (GetItalicLeft() + GetItalicRight()) / 2; }
+            tools::Long GetItalicRight() const     { return GetRight() + GetItalicRightSpace(); }
+            tools::Long GetItalicWidth() const     { return GetWidth() + GetItalicLeftSpace() + GetItalicRightSpace(); }
+
+            bool HasBaseline() const        { return bHasBaseline; }
+    inline  tools::Long GetBaseline() const;
+            tools::Long GetBaselineOffset() const  { return GetBaseline() - GetTop(); }
+
+            tools::Long GetAlignT() const  { return nAlignT; }
+            tools::Long GetAlignM() const  { return nAlignM; }
+            tools::Long GetAlignB() const  { return nAlignB; }
+
+            const Size & GetSize() const    { return aSize; }
+
+            Size  GetItalicSize() const
+            {   return Size(GetItalicWidth(), GetHeight()); }
+
+            void Move  (const Point &rPosition);
+            void MoveTo(const Point &rPosition) { Move(rPosition - GetTopLeft()); }
+
+            bool IsEmpty() const
+            {
+                return GetWidth() == 0  ||  GetHeight() == 0;
+            }
+
+            bool HasAlignInfo() const { return bHasAlignInfo; }
+
+            Point AlignTo(const SmRect &rRect, RectPos ePos,
+                                RectHorAlign eHor, RectVerAlign eVer) const;
+
+            SmRect & ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode);
+            void     ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode,
+                              tools::Long nNewAlignM);
+            SmRect & ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode,
+                      bool bKeepVerAlignParams);
+
+            tools::Long    OrientedDist(const Point &rPoint) const;
+            bool    IsInsideRect(const Point &rPoint) const;
+            bool    IsInsideItalicRect(const Point &rPoint) const;
+
+    inline  tools::Rectangle   AsRectangle() const;
+            SmRect      AsGlyphRect() const;
+};
+
+
+inline void SmRect::SetItalicSpaces(tools::Long nLeftSpace, tools::Long nRightSpace)
+    // set extra spacing to the left and right for (italic)
+    // letters/text
+{
+    nItalicLeftSpace  = nLeftSpace;
+    nItalicRightSpace = nRightSpace;
+}
+
+
+inline void SmRect::CopyMBL(const SmRect &rRect)
+    // copy AlignM baseline and value of 'rRect'
+{
+    nBaseline    = rRect.nBaseline;
+    bHasBaseline = rRect.bHasBaseline;
+    nAlignM      = rRect.nAlignM;
+}
+
+
+inline tools::Long SmRect::GetBaseline() const
+{
+    SAL_WARN_IF( !HasBaseline(), "starmath", "Baseline does not exist" );
+    return nBaseline;
+}
+
+
+inline tools::Rectangle SmRect::AsRectangle() const
+{
+    return tools::Rectangle(Point(GetItalicLeft(), GetTop()), GetItalicSize());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/smdll.hxx b/starmath/inc/smdll.hxx
new file mode 100644
index 000000000..1a1e175c8
--- /dev/null
+++ b/starmath/inc/smdll.hxx
@@ -0,0 +1,29 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include "smdllapi.hxx"
+
+namespace SmGlobals
+{
+SM_DLLPUBLIC void ensure();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/smdllapi.hxx b/starmath/inc/smdllapi.hxx
new file mode 100644
index 000000000..635493619
--- /dev/null
+++ b/starmath/inc/smdllapi.hxx
@@ -0,0 +1,20 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <sal/types.h>
+
+#if defined(SM_DLLIMPLEMENTATION)
+#define SM_DLLPUBLIC SAL_DLLPUBLIC_EXPORT
+#else
+#define SM_DLLPUBLIC SAL_DLLPUBLIC_IMPORT
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/smediteng.hxx b/starmath/inc/smediteng.hxx
new file mode 100644
index 000000000..6c95b5804
--- /dev/null
+++ b/starmath/inc/smediteng.hxx
@@ -0,0 +1,59 @@
+/* This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <editeng/editeng.hxx>
+#include <unotools/lingucfg.hxx>
+
+class SmEditEngine final : public EditEngine
+{
+public:
+    SmEditEngine(SfxItemPool* pItemPool);
+    SmEditEngine(const SmEditEngine&) = delete;
+
+public:
+    /**
+      * Runs checkZoom and if true runs updateZoom
+      */
+    void executeZoom(EditView* pEditView = nullptr);
+
+    /**
+      * Sets up default font parameters for the item pool.
+      */
+    static void setSmItemPool(SfxItemPool* mpItemPool, const SvtLinguOptions& maLangOptions);
+
+    // Deal with text scaling
+private:
+    sal_Int32 m_nOldZoom;
+    sal_Int32 m_nNewZoom;
+    sal_Int32 m_nDefaultFontSize;
+
+    /**
+      * Checks if the zoom of smeditwindow has changed.
+      * m_nNewZoom is updated.
+      * @return zoom has changed
+      */
+    bool checkZoom();
+
+    /**
+      * Updates the zoom of smeditwindow.
+      * m_nOldZoom is set to m_nNewZoom.
+      */
+
+    void updateZoom();
+
+    // Gather information for more complex tasks
+private:
+    ESelection m_aAllSelection;
+
+    /**
+      * Finds the ESelection which contains all the text.
+      */
+    void updateAllESelection();
+};
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/smmod.hrc b/starmath/inc/smmod.hrc
new file mode 100644
index 000000000..885af2147
--- /dev/null
+++ b/starmath/inc/smmod.hrc
@@ -0,0 +1,92 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <unotools/resmgr.hxx>
+
+#define NC_(Context, String) TranslateId(Context, reinterpret_cast<char const *>(u8##String))
+
+const TranslateId RID_UI_SYMBOLSET_NAMES[] =
+{
+    NC_("RID_UI_SYMBOLSET_NAMES", "Greek"),
+    NC_("RID_UI_SYMBOLSET_NAMES", "Special")
+};
+
+const TranslateId RID_UI_SYMBOL_NAMES[] =
+{
+    NC_("RID_UI_SYMBOL_NAMES", "alpha"),
+    NC_("RID_UI_SYMBOL_NAMES", "ALPHA"),
+    NC_("RID_UI_SYMBOL_NAMES", "beta"),
+    NC_("RID_UI_SYMBOL_NAMES", "BETA"),
+    NC_("RID_UI_SYMBOL_NAMES", "gamma"),
+    NC_("RID_UI_SYMBOL_NAMES", "GAMMA"),
+    NC_("RID_UI_SYMBOL_NAMES", "delta"),
+    NC_("RID_UI_SYMBOL_NAMES", "DELTA"),
+    NC_("RID_UI_SYMBOL_NAMES", "epsilon"),
+    NC_("RID_UI_SYMBOL_NAMES", "EPSILON"),
+    NC_("RID_UI_SYMBOL_NAMES", "zeta"),
+    NC_("RID_UI_SYMBOL_NAMES", "ZETA"),
+    NC_("RID_UI_SYMBOL_NAMES", "eta"),
+    NC_("RID_UI_SYMBOL_NAMES", "ETA"),
+    NC_("RID_UI_SYMBOL_NAMES", "theta"),
+    NC_("RID_UI_SYMBOL_NAMES", "THETA"),
+    NC_("RID_UI_SYMBOL_NAMES", "iota"),
+    NC_("RID_UI_SYMBOL_NAMES", "IOTA"),
+    NC_("RID_UI_SYMBOL_NAMES", "kappa"),
+    NC_("RID_UI_SYMBOL_NAMES", "KAPPA"),
+    NC_("RID_UI_SYMBOL_NAMES", "lambda"),
+    NC_("RID_UI_SYMBOL_NAMES", "LAMBDA"),
+    NC_("RID_UI_SYMBOL_NAMES", "mu"),
+    NC_("RID_UI_SYMBOL_NAMES", "MU"),
+    NC_("RID_UI_SYMBOL_NAMES", "nu"),
+    NC_("RID_UI_SYMBOL_NAMES", "NU"),
+    NC_("RID_UI_SYMBOL_NAMES", "xi"),
+    NC_("RID_UI_SYMBOL_NAMES", "XI"),
+    NC_("RID_UI_SYMBOL_NAMES", "omicron"),
+    NC_("RID_UI_SYMBOL_NAMES", "OMICRON"),
+    NC_("RID_UI_SYMBOL_NAMES", "pi"),
+    NC_("RID_UI_SYMBOL_NAMES", "PI"),
+    NC_("RID_UI_SYMBOL_NAMES", "rho"),
+    NC_("RID_UI_SYMBOL_NAMES", "RHO"),
+    NC_("RID_UI_SYMBOL_NAMES", "sigma"),
+    NC_("RID_UI_SYMBOL_NAMES", "SIGMA"),
+    NC_("RID_UI_SYMBOL_NAMES", "tau"),
+    NC_("RID_UI_SYMBOL_NAMES", "TAU"),
+    NC_("RID_UI_SYMBOL_NAMES", "upsilon"),
+    NC_("RID_UI_SYMBOL_NAMES", "UPSILON"),
+    NC_("RID_UI_SYMBOL_NAMES", "phi"),
+    NC_("RID_UI_SYMBOL_NAMES", "PHI"),
+    NC_("RID_UI_SYMBOL_NAMES", "chi"),
+    NC_("RID_UI_SYMBOL_NAMES", "CHI"),
+    NC_("RID_UI_SYMBOL_NAMES", "psi"),
+    NC_("RID_UI_SYMBOL_NAMES", "PSI"),
+    NC_("RID_UI_SYMBOL_NAMES", "omega"),
+    NC_("RID_UI_SYMBOL_NAMES", "OMEGA"),
+    NC_("RID_UI_SYMBOL_NAMES", "varepsilon"),
+    NC_("RID_UI_SYMBOL_NAMES", "vartheta"),
+    NC_("RID_UI_SYMBOL_NAMES", "varpi"),
+    NC_("RID_UI_SYMBOL_NAMES", "varrho"),
+    NC_("RID_UI_SYMBOL_NAMES", "varsigma"),
+    NC_("RID_UI_SYMBOL_NAMES", "varphi"),
+    NC_("RID_UI_SYMBOL_NAMES", "element"),
+    NC_("RID_UI_SYMBOL_NAMES", "noelement"),
+    NC_("RID_UI_SYMBOL_NAMES", "strictlylessthan"),
+    NC_("RID_UI_SYMBOL_NAMES", "strictlygreaterthan"),
+    NC_("RID_UI_SYMBOL_NAMES", "notequal"),
+    NC_("RID_UI_SYMBOL_NAMES", "identical"),
+    NC_("RID_UI_SYMBOL_NAMES", "tendto"),
+    NC_("RID_UI_SYMBOL_NAMES", "infinite"),
+    NC_("RID_UI_SYMBOL_NAMES", "angle"),
+    NC_("RID_UI_SYMBOL_NAMES", "perthousand"),
+    NC_("RID_UI_SYMBOL_NAMES", "and"),
+    NC_("RID_UI_SYMBOL_NAMES", "or")
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/smmod.hxx b/starmath/inc/smmod.hxx
new file mode 100644
index 000000000..f75643d0f
--- /dev/null
+++ b/starmath/inc/smmod.hxx
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sfx2/module.hxx>
+#include <sfx2/app.hxx>
+#include <vcl/vclptr.hxx>
+#include <unotools/options.hxx>
+
+namespace svtools { class ColorConfig; }
+
+class SfxObjectFactory;
+class SmSymbolManager;
+class SmMathConfig;
+
+/*************************************************************************
+|*
+|* This subclass of <SfxModule> (which is a subclass of <SfxShell>) is
+|* linked to the DLL. One instance of this class exists while the DLL is
+|* loaded.
+|*
+|* SdModule is like to be compared with the <SfxApplication>-subclass.
+|*
+|* Remember: Don`t export this class! It uses DLL-internal symbols.
+|*
+\************************************************************************/
+
+class SvtSysLocale;
+class VirtualDevice;
+
+
+OUString SmResId(TranslateId aId);
+
+class SmLocalizedSymbolData
+{
+public:
+    SmLocalizedSymbolData() = delete;
+
+    static OUString GetUiSymbolName( std::u16string_view rExportName );
+    static OUString GetExportSymbolName( std::u16string_view rUiName );
+
+    static OUString GetUiSymbolSetName( std::u16string_view rExportName );
+    static OUString GetExportSymbolSetName( std::u16string_view rUiName );
+};
+
+class SmModule final : public SfxModule, public utl::ConfigurationListener
+{
+    std::unique_ptr<svtools::ColorConfig> mpColorConfig;
+    std::unique_ptr<SmMathConfig> mpConfig;
+    std::unique_ptr<SmLocalizedSymbolData> mpLocSymbolData;
+    std::unique_ptr<SvtSysLocale> mpSysLocale;
+    VclPtr<VirtualDevice>    mpVirtualDev;
+
+public:
+    SFX_DECL_INTERFACE(SFX_INTERFACE_SMA_START + SfxInterfaceId(0))
+
+private:
+    /// SfxInterface initializer.
+    static void InitInterface_Impl();
+
+public:
+    explicit SmModule(SfxObjectFactory* pObjFact);
+    virtual ~SmModule() override;
+
+    virtual void ConfigurationChanged( utl::ConfigurationBroadcaster*, ConfigurationHints ) override;
+
+    svtools::ColorConfig &  GetColorConfig();
+
+    SmMathConfig *          GetConfig();
+    SmSymbolManager &       GetSymbolManager();
+
+    static void GetState(SfxItemSet&);
+
+    const SvtSysLocale& GetSysLocale();
+
+    VirtualDevice &     GetDefaultVirtualDev();
+
+    //virtual methods for options dialog
+    virtual std::optional<SfxItemSet> CreateItemSet( sal_uInt16 nId ) override;
+    virtual void         ApplyItemSet( sal_uInt16 nId, const SfxItemSet& rSet ) override;
+    virtual std::unique_ptr<SfxTabPage> CreateTabPage( sal_uInt16 nId, weld::Container* pPage, weld::DialogController* pController, const SfxItemSet& rSet ) override;
+};
+
+#define SM_MOD() ( static_cast<SmModule*>(SfxApplication::GetModule(SfxToolsModule::Math)) )
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/starmath.hrc b/starmath/inc/starmath.hrc
new file mode 100644
index 000000000..83c17c94d
--- /dev/null
+++ b/starmath/inc/starmath.hrc
@@ -0,0 +1,76 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <svl/solar.hrc>
+
+class SfxBoolItem;
+class SfxUInt16Item;
+
+#define SID_NEXTERR                 (SID_SMA_START + 1)
+#define SID_PREVERR                 (SID_SMA_START + 2)
+#define SID_NEXTMARK                (SID_SMA_START + 3)
+#define SID_PREVMARK                (SID_SMA_START + 4)
+#define SID_SYMBOLS_CATALOGUE       (SID_SMA_START + 5)
+#define SID_ZOOMIN                  (SID_SMA_START + 10)
+#define SID_ZOOMOUT                 (SID_SMA_START + 11)
+#define SID_DRAW                    (SID_SMA_START + 12)
+#define SID_FORMULACURSOR           (SID_SMA_START + 15)
+#define SID_FONT                    (SID_SMA_START + 50)
+#define SID_FONTSIZE                (SID_SMA_START + 51)
+#define SID_DISTANCE                (SID_SMA_START + 52)
+#define SID_ALIGN                   (SID_SMA_START + 53)
+
+#define SID_AUTO_REDRAW             (SID_SMA_START + 55)
+#define SID_TEXTMODE                (SID_SMA_START + 57)
+#define SID_IMPORT_FORMULA          (SID_SMA_START + 58)
+#define SID_IMPORT_MATHML_CLIPBOARD (SID_SMA_START + 59)
+#define SID_TEXT                    (SID_SMA_START + 100)
+#define SID_GRAPHIC_SM              (SID_SMA_START + 101)
+/** Command for inserting a symbol specified by a string (Inserts an SmSpecialNode) */
+#define SID_INSERTSPECIAL           (SID_SMA_START + 104)
+/** Command for inserting a math construction */
+#define SID_INSERTCOMMANDTEXT       (SID_SMA_START + 106)
+
+#define SID_LOADSYMBOLS             (SID_SMA_START + 107)
+#define SID_SAVESYMBOLS             (SID_SMA_START + 108)
+#define SID_MODIFYSTATUS            (SID_SMA_START + 110)
+#define SID_TEXTSTATUS              (SID_SMA_START + 111)
+
+#define SID_PRINTTITLE              TypedWhichId<SfxBoolItem>(SID_SMA_START + 112)
+#define SID_PRINTTEXT               TypedWhichId<SfxBoolItem>(SID_SMA_START + 113)
+#define SID_PRINTFRAME              TypedWhichId<SfxBoolItem>(SID_SMA_START + 114)
+#define SID_PRINTSIZE               TypedWhichId<SfxUInt16Item>(SID_SMA_START + 115)
+#define SID_PRINTZOOM               TypedWhichId<SfxUInt16Item>(SID_SMA_START + 116)
+
+#define SID_COPYOBJECT              (SID_SMA_START + 117)
+#define SID_PASTEOBJECT             (SID_SMA_START + 118)
+#define SID_AUTOREDRAW              TypedWhichId<SfxBoolItem>(SID_SMA_START + 119)
+
+#define SID_GETEDITTEXT             (SID_SMA_START + 121)
+#define SID_CMDBOXWINDOW            (SID_SMA_START + 122)
+#define SID_NO_RIGHT_SPACES         TypedWhichId<SfxBoolItem>(SID_SMA_START + 124)
+#define SID_SAVE_ONLY_USED_SYMBOLS  TypedWhichId<SfxBoolItem>(SID_SMA_START + 125)
+#define SID_ELEMENTSDOCKINGWINDOW   (SID_SMA_START + 126)
+#define SID_AUTO_CLOSE_BRACKETS     TypedWhichId<SfxBoolItem>(SID_SMA_START + 127)
+#define SID_SMEDITWINDOWZOOM        TypedWhichId<SfxUInt16Item>(SID_SMA_START + 129)
+#define SID_DEFAULT_SM_SYNTAX_VERSION TypedWhichId<SfxUInt16Item>(SID_SMA_START + 130)
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/strings.hrc b/starmath/inc/strings.hrc
new file mode 100644
index 000000000..015c7e7c4
--- /dev/null
+++ b/starmath/inc/strings.hrc
@@ -0,0 +1,403 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/** Those are the starmath codes descriptions for ElementsDockingWindow.hxx.
+  *
+  * Those codes will be displayed as formulas on the ElementsDockingWindow.
+  * The user can then graphically insert them.
+  * When passing the mouse over them, those descriptions will be displayed.
+  */
+
+#pragma once
+
+#define NC_(Context, String) TranslateId(Context, reinterpret_cast<char const *>(u8##String))
+
+// clang-format off
+#define RID_PLUSX_HELP                      NC_("RID_PLUSX_HELP", "+ Sign" )
+#define RID_MINUSX_HELP                     NC_("RID_MINUSX_HELP", "- Sign" )
+#define RID_PLUSMINUSX_HELP                 NC_("RID_PLUSMINUSX_HELP", "+- Sign" )
+#define RID_MINUSPLUSX_HELP                 NC_("RID_MINUSPLUSX_HELP", "-+ Sign" )
+#define RID_NEGX_HELP                       NC_("RID_NEGX_HELP", "Boolean NOT" )
+#define RID_XPLUSY_HELP                     NC_("RID_XPLUSY_HELP", "Addition +" )
+#define RID_XMINUSY_HELP                    NC_("RID_XMINUSY_HELP", "Subtraction -" )
+#define RID_XCDOTY_HELP                     NC_("RID_XCDOTY_HELP", "Multiplication (Dot)" )
+#define RID_XTIMESY_HELP                    NC_("RID_XTIMESY_HELP", "Multiplication (x)" )
+#define RID_XSYMTIMESY_HELP                 NC_("RID_XSYMTIMESY_HELP", "Multiplication (*)" )
+#define RID_XSYMDIVIDEY_HELP                NC_("RID_XSYMDIVIDEY_HELP", "Division (Slash)" )
+#define RID_XDIVY_HELP                      NC_("RID_XDIVY_HELP", "Division (÷)" )
+#define RID_XOVERY_HELP                     NC_("RID_XOVERY_HELP", "Division (Fraction)" )
+#define RID_FRACXY_HELP                     NC_("RID_FRACXY_HELP", "Fraction" )
+#define RID_XODIVIDEY_HELP                  NC_("RID_XODIVIDEY_HELP", "Circled Slash" )
+#define RID_XODOTY_HELP                     NC_("RID_XODOTY_HELP", "Circled Dot" )
+#define RID_XOMINUSY_HELP                   NC_("RID_XOMINUSY_HELP", "Circled Minus" )
+#define RID_XOPLUSY_HELP                    NC_("RID_XOPLUSY_HELP", "Circled Plus" )
+#define RID_XOTIMESY_HELP                   NC_("RID_XOTIMESY_HELP", "Tensor Product" )
+#define RID_XANDY_HELP                      NC_("RID_XANDY_HELP", "Boolean AND" )
+#define RID_XORY_HELP                       NC_("RID_XORY_HELP", "Boolean OR" )
+#define RID_XEQY_HELP                       NC_("RID_XEQY_HELP", "Is Equal" )
+#define RID_XNEQY_HELP                      NC_("RID_XNEQY_HELP", "Is Not Equal" )
+#define RID_XLTY_HELP                       NC_("RID_XLTY_HELP", "Is Less Than" )
+#define RID_XGTY_HELP                       NC_("RID_XGTY_HELP", "Is Greater Than" )
+#define RID_XLEY_HELP                       NC_("RID_XLEY_HELP", "Is Less Than Or Equal To" )
+#define RID_XGEY_HELP                       NC_("RID_XGEY_HELP", "Is Greater Than Or Equal To" )
+#define RID_XLESLANTY_HELP                  NC_("RID_XLESLANTY_HELP", "Is Less Than Or Equal To" )
+#define RID_XGESLANTY_HELP                  NC_("RID_XGESLANTY_HELP", "Is Greater Than Or Equal To" )
+#define RID_XLLY_HELP                       NC_("RID_XLLY_HELP", "Is Much Less Than" )
+#define RID_XGGY_HELP                       NC_("RID_XGGY_HELP", "Is Much Greater Than" )
+#define RID_XDEFY_HELP                      NC_("RID_XDEFY_HELP", "Is Defined As" )
+#define RID_XEQUIVY_HELP                    NC_("RID_XEQUIVY_HELP", "Is Congruent To" )
+#define RID_XAPPROXY_HELP                   NC_("RID_XAPPROXY_HELP", "Is Approximately Equal" )
+#define RID_XSIMY_HELP                      NC_("RID_XSIMY_HELP", "Is Similar To" )
+#define RID_XSIMEQY_HELP                    NC_("RID_XSIMEQY_HELP", "Is Similar Or Equal" )
+#define RID_XPROPY_HELP                     NC_("RID_XPROPY_HELP", "Is Proportional To" )
+#define RID_XORTHOY_HELP                    NC_("RID_XORTHOY_HELP", "Is Orthogonal To" )
+#define RID_XPARALLELY_HELP                 NC_("RID_XPARALLELY_HELP", "Is Parallel To" )
+#define RID_XTOWARDY_HELP                   NC_("RID_XTOWARDY_HELP", "Toward" )
+#define RID_XTRANSLY_HELP                   NC_("RID_XTRANSLY_HELP", "Corresponds To (Left)" )
+#define RID_XTRANSRY_HELP                   NC_("RID_XTRANSRY_HELP", "Corresponds To (Right)" )
+#define RID_XINY_HELP                       NC_("RID_XINY_HELP", "Is In" )
+#define RID_XNOTINY_HELP                    NC_("RID_XNOTINY_HELP", "Is Not In" )
+#define RID_XOWNSY_HELP                     NC_("RID_XOWNSY_HELP", "Owns" )
+#define RID_XUNIONY_HELP                    NC_("RID_XUNIONY_HELP", "Union" )
+#define RID_XINTERSECTIONY_HELP             NC_("RID_XINTERSECTIONY_HELP", "Intersection" )
+#define RID_XSETMINUSY_HELP                 NC_("RID_XSETMINUSY_HELP", "Difference" )
+#define RID_XSETQUOTIENTY_HELP              NC_("RID_XSETQUOTIENTY_HELP", "Quotient Set" )
+#define RID_XSUBSETY_HELP                   NC_("RID_XSUBSETY_HELP", "Subset" )
+#define RID_XSUBSETEQY_HELP                 NC_("RID_XSUBSETEQY_HELP", "Subset Or Equal To" )
+#define RID_XSUPSETY_HELP                   NC_("RID_XSUPSETY_HELP", "Superset" )
+#define RID_XSUPSETEQY_HELP                 NC_("RID_XSUPSETEQY_HELP", "Superset Or Equal To" )
+#define RID_XNSUBSETY_HELP                  NC_("RID_XNSUBSETY_HELP", "Not Subset" )
+#define RID_XNSUBSETEQY_HELP                NC_("RID_XNSUBSETEQY_HELP", "Not Subset Or Equal" )
+#define RID_XNSUPSETY_HELP                  NC_("RID_XNSUPSETY_HELP", "Not Superset" )
+#define RID_XNSUPSETEQY_HELP                NC_("RID_XNSUPSETEQY_HELP", "Not Superset Or Equal" )
+#define RID_FUNCX_HELP                      NC_("RID_FUNCX_HELP", "General function" )
+#define RID_ABSX_HELP                       NC_("RID_ABSX_HELP", "Absolute Value" )
+#define RID_FACTX_HELP                      NC_("RID_FACTX_HELP", "Factorial" )
+#define RID_SQRTX_HELP                      NC_("RID_SQRTX_HELP", "Square Root" )
+#define RID_NROOTXY_HELP                    NC_("RID_NROOTXY_HELP", "N-th Root" )
+#define RID_EX_HELP                         NC_("RID_EX_HELP", "Exponential Function" )
+#define RID_EXPX_HELP                       NC_("RID_EXPX_HELP", "Exponential Function" )
+#define RID_LNX_HELP                        NC_("RID_LNX_HELP", "Natural Logarithm" )
+#define RID_LOGX_HELP                       NC_("RID_LOGX_HELP", "Logarithm" )
+#define RID_SINX_HELP                       NC_("RID_SINX_HELP", "Sine" )
+#define RID_COSX_HELP                       NC_("RID_COSX_HELP", "Cosine" )
+#define RID_TANX_HELP                       NC_("RID_TANX_HELP", "Tangent" )
+#define RID_COTX_HELP                       NC_("RID_COTX_HELP", "Cotangent" )
+#define RID_ARCSINX_HELP                    NC_("RID_ARCSINX_HELP", "Arcsine" )
+#define RID_ARCCOSX_HELP                    NC_("RID_ARCCOSX_HELP", "Arccosine" )
+#define RID_ARCTANX_HELP                    NC_("RID_ARCTANX_HELP", "Arctangent" )
+#define RID_ARCCOTX_HELP                    NC_("RID_ARCCOTX_HELP", "Arccotangent" )
+#define RID_SINHX_HELP                      NC_("RID_SINHX_HELP", "Hyperbolic Sine" )
+#define RID_COSHX_HELP                      NC_("RID_COSHX_HELP", "Hyperbolic Cosine" )
+#define RID_TANHX_HELP                      NC_("RID_TANHX_HELP", "Hyperbolic Tangent" )
+#define RID_COTHX_HELP                      NC_("RID_COTHX_HELP", "Hyperbolic Cotangent" )
+#define RID_ARSINHX_HELP                    NC_("RID_ARSINHX_HELP", "Area Hyperbolic Sine" )
+#define RID_ARCOSHX_HELP                    NC_("RID_ARCOSHX_HELP", "Area Hyperbolic Cosine" )
+#define RID_ARTANHX_HELP                    NC_("RID_ARTANHX_HELP", "Area Hyperbolic Tangent" )
+#define RID_ARCOTHX_HELP                    NC_("RID_ARCOTHX_HELP", "Area Hyperbolic Cotangent" )
+#define RID_OPERX_HELP                      NC_("RID_OPERX_HELP", "General operator" )
+#define RID_OPER_FROMX_HELP                 NC_("RID_OPER_FROMX_HELP", "General operator Subscript Bottom" )
+#define RID_OPER_TOX_HELP                   NC_("RID_OPER_TOX_HELP", "General operator Superscript Top" )
+#define RID_OPER_FROMTOX_HELP               NC_("RID_OPER_FROMTOX_HELP", "General operator Sup/Sub script" )
+#define RID_SUMX_HELP                       NC_("RID_SUMX_HELP", "Sum" )
+#define RID_SUM_FROMX_HELP                  NC_("RID_SUM_FROMX_HELP", "Sum Subscript Bottom" )
+#define RID_SUM_TOX_HELP                    NC_("RID_SUM_TOX_HELP", "Sum Superscript Top" )
+#define RID_SUM_FROMTOX_HELP                NC_("RID_SUM_FROMTOX_HELP", "Sum Sup/Sub script" )
+#define RID_PRODX_HELP                      NC_("RID_PRODX_HELP", "Product" )
+#define RID_PROD_FROMX_HELP                 NC_("RID_PROD_FROMX_HELP", "Product Subscript Bottom" )
+#define RID_PROD_TOX_HELP                   NC_("RID_PROD_TOX_HELP", "Product Superscript Top" )
+#define RID_PROD_FROMTOX_HELP               NC_("RID_PROD_FROMTOX_HELP", "Product Sup/Sub script" )
+#define RID_COPRODX_HELP                    NC_("RID_COPRODX_HELP", "Coproduct" )
+#define RID_COPROD_FROMX_HELP               NC_("RID_COPROD_FROMX_HELP", "Coproduct Subscript Bottom" )
+#define RID_COPROD_TOX_HELP                 NC_("RID_COPROD_TOX_HELP", "Coproduct Superscript Top" )
+#define RID_COPROD_FROMTOX_HELP             NC_("RID_COPROD_FROMTOX_HELP", "Coproduct Sup/Sub script" )
+#define RID_LIMX_HELP                       NC_("RID_LIMX_HELP", "Limes" )
+#define RID_LIM_FROMX_HELP                  NC_("RID_LIM_FROMX_HELP", "Limes Subscript Bottom" )
+#define RID_LIM_TOX_HELP                    NC_("RID_LIM_TOX_HELP", "Limes Superscript Top" )
+#define RID_LIM_FROMTOX_HELP                NC_("RID_LIM_FROMTOX_HELP", "Limes Sup/Sub script" )
+#define RID_LIMINFX_HELP                    NC_("RID_LIMINFX_HELP", "Limit Inferior" )
+#define RID_LIMINF_FROMX_HELP               NC_("RID_LIMINF_FROMX_HELP", "Limit Inferior Subscript Bottom" )
+#define RID_LIMINF_TOX_HELP                 NC_("RID_LIMINF_TOX_HELP", "Limit Inferior Superscript Top" )
+#define RID_LIMINF_FROMTOX_HELP             NC_("RID_LIMINF_FROMTOX_HELP", "Limit Inferior Sup/Sub script" )
+#define RID_LIMSUPX_HELP                    NC_("RID_LIMSUPX_HELP", "Limit Superior" )
+#define RID_LIMSUP_FROMX_HELP               NC_("RID_LIMSUP_FROMX_HELP", "Limit Superior Subscript Bottom" )
+#define RID_LIMSUP_TOX_HELP                 NC_("RID_LIMSUP_TOX_HELP", "Limit Superior Superscript Top" )
+#define RID_LIMSUP_FROMTOX_HELP             NC_("RID_LIMSUP_FROMTOX_HELP", "Limit Superior Sup/Sub script" )
+#define RID_EXISTS_HELP                     NC_("RID_EXISTS_HELP", "There Exists" )
+#define RID_NOTEXISTS_HELP                  NC_("RID_NOTEXISTS_HELP", "There does not exist" )
+#define RID_FORALL_HELP                     NC_("RID_FORALL_HELP", "For all" )
+#define RID_INTX_HELP                       NC_("RID_INTX_HELP", "Integral" )
+#define RID_INT_FROMX_HELP                  NC_("RID_INT_FROMX_HELP", "Integral Subscript Bottom" )
+#define RID_INT_TOX_HELP                    NC_("RID_INT_TOX_HELP", "Integral Superscript Top" )
+#define RID_INT_FROMTOX_HELP                NC_("RID_INT_FROMTOX_HELP", "Integral Sup/Sub script" )
+#define RID_IINTX_HELP                      NC_("RID_IINTX_HELP", "Double Integral" )
+#define RID_IINT_FROMX_HELP                 NC_("RID_IINT_FROMX_HELP", "Double Integral Subscript Bottom" )
+#define RID_IINT_TOX_HELP                   NC_("RID_IINT_TOX_HELP", "Double Integral Superscript Top" )
+#define RID_IINT_FROMTOX_HELP               NC_("RID_IINT_FROMTOX_HELP", "Double Integral Sup/Sub script" )
+#define RID_IIINTX_HELP                     NC_("RID_IIINTX_HELP", "Triple Integral" )
+#define RID_IIINT_FROMX_HELP                NC_("RID_IIINT_FROMX_HELP", "Triple Integral Subscript Bottom" )
+#define RID_IIINT_TOX_HELP                  NC_("RID_IIINT_TOX_HELP", "Triple Integral Superscript Top" )
+#define RID_IIINT_FROMTOX_HELP              NC_("RID_IIINT_FROMTOX_HELP", "Triple Integral Sup/Sub script" )
+#define RID_LINTX_HELP                      NC_("RID_LINTX_HELP", "Curve Integral" )
+#define RID_LINT_FROMX_HELP                 NC_("RID_LINT_FROMX_HELP", "Curve Integral Subscript Bottom" )
+#define RID_LINT_TOX_HELP                   NC_("RID_LINT_TOX_HELP", "Curve Integral Superscript Top" )
+#define RID_LINT_FROMTOX_HELP               NC_("RID_LINT_FROMTOX_HELP", "Curve Integral Sup/Sub script" )
+#define RID_LLINTX_HELP                     NC_("RID_LLINTX_HELP", "Double Curve Integral" )
+#define RID_LLINT_FROMX_HELP                NC_("RID_LLINT_FROMX_HELP", "Double Curve Integral Subscript Bottom" )
+#define RID_LLINT_TOX_HELP                  NC_("RID_LLINT_TOX_HELP", "Double Curve Integral Superscript Top" )
+#define RID_LLINT_FROMTOX_HELP              NC_("RID_LLINT_FROMTOX_HELP", "Double Curve Integral Sup/Sub script" )
+#define RID_LLLINTX_HELP                    NC_("RID_LLLINTX_HELP", "Triple Curve Integral" )
+#define RID_LLLINT_FROMX_HELP               NC_("RID_LLLINT_FROMX_HELP", "Triple Curve Integral Subscript Bottom" )
+#define RID_LLLINT_TOX_HELP                 NC_("RID_LLLINT_TOX_HELP", "Triple Curve Integral Superscript Top" )
+#define RID_LLLINT_FROMTOX_HELP             NC_("RID_LLLINT_FROMTOX_HELP", "Triple Curve Integral Sup/Sub script" )
+#define RID_ACUTEX_HELP                     NC_("RID_ACUTEX_HELP", "Acute Accent" )
+#define RID_BARX_HELP                       NC_("RID_BARX_HELP", "Line Above" )
+#define RID_BREVEX_HELP                     NC_("RID_BREVEX_HELP", "Breve" )
+#define RID_CHECKX_HELP                     NC_("RID_CHECKX_HELP", "Reverse Circumflex" )
+#define RID_CIRCLEX_HELP                    NC_("RID_CIRCLEX_HELP", "Circle" )
+#define RID_DOTX_HELP                       NC_("RID_DOTX_HELP", "Dot" )
+#define RID_DDOTX_HELP                      NC_("RID_DDOTX_HELP", "Double Dot" )
+#define RID_DDDOTX_HELP                     NC_("RID_DDDOTX_HELP", "Triple Dot" )
+#define RID_GRAVEX_HELP                     NC_("RID_GRAVEX_HELP", "Grave Accent" )
+#define RID_HATX_HELP                       NC_("RID_HATX_HELP", "Circumflex" )
+#define RID_TILDEX_HELP                     NC_("RID_TILDEX_HELP", "Tilde" )
+#define RID_VECX_HELP                       NC_("RID_VECX_HELP", "Vector Arrow" )
+#define RID_HARPOONX_HELP                   NC_("RID_HARPOONX_HELP", "Harpoon" )
+#define RID_UNDERLINEX_HELP                 NC_("RID_UNDERLINEX_HELP", "Line Below" )
+#define RID_OVERLINEX_HELP                  NC_("RID_OVERLINEX_HELP", "Line Over" )
+#define RID_OVERSTRIKEX_HELP                NC_("RID_OVERSTRIKEX_HELP", "Line Through" )
+#define RID_PHANTOMX_HELP                   NC_("RID_PHANTOMX_HELP", "Transparent" )
+#define RID_BOLDX_HELP                      NC_("RID_BOLDX_HELP", "Bold Font" )
+#define RID_ITALX_HELP                      NC_("RID_ITALX_HELP", "Italic Font" )
+#define RID_SIZEXY_HELP                     NC_("RID_SIZEXY_HELP", "Resize" )
+#define RID_FONTXY_HELP                     NC_("RID_FONTXY_HELP", "Change Font" )
+#define RID_COLORX_BLACK_HELP               NC_("RID_COLORX_BLACK_HELP", "Color Black" )
+#define RID_COLORX_BLUE_HELP                NC_("RID_COLORX_BLUE_HELP", "Color Blue" )
+#define RID_COLORX_GREEN_HELP               NC_("RID_COLORX_GREEN_HELP", "Color Green" )
+#define RID_COLORX_RED_HELP                 NC_("RID_COLORX_RED_HELP", "Color Red" )
+#define RID_COLORX_AQUA_HELP                NC_("RID_COLORX_AQUA_HELP", "Color Aqua" )
+#define RID_COLORX_FUCHSIA_HELP             NC_("RID_COLORX_FUCHSIA_HELP", "Color Fuchsia" )
+#define RID_COLORX_GRAY_HELP                NC_("RID_COLORX_GRAY_HELP", "Color Gray" )
+#define RID_COLORX_LIME_HELP                NC_("RID_COLORX_LIME_HELP", "Color Lime" )
+#define RID_COLORX_MAROON_HELP              NC_("RID_COLORX_MAROON_HELP", "Color Maroon" )
+#define RID_COLORX_NAVY_HELP                NC_("RID_COLORX_NAVY_HELP", "Color Navy" )
+#define RID_COLORX_OLIVE_HELP               NC_("RID_COLORX_OLIVE_HELP", "Color Olive" )
+#define RID_COLORX_PURPLE_HELP              NC_("RID_COLORX_PURPLE_HELP", "Color Purple" )
+#define RID_COLORX_SILVER_HELP              NC_("RID_COLORX_SILVER_HELP", "Color Silver" )
+#define RID_COLORX_TEAL_HELP                NC_("RID_COLORX_TEAL_HELP", "Color Teal" )
+#define RID_COLORX_YELLOW_HELP              NC_("RID_COLORX_YELLOW_HELP", "Color Yellow" )
+#define RID_COLORX_RGB_HELP                 NC_("RID_COLORX_RGB_HELP", "Color RGB" )
+#define RID_COLORX_RGBA_HELP                NC_("RID_COLORX_RGBA_HELP", "Color RGBA" )
+#define RID_COLORX_HEX_HELP                 NC_("RID_COLORX_HEX_HELP", "Color hexadecimal" )
+#define RID_COLORX_CORAL_HELP               NC_("RID_COLORX_CORAL_HELP", "Color Coral" )
+#define RID_COLORX_CRIMSON_HELP             NC_("RID_COLORX_CRIMSON_HELP", "Color Crimson" )
+#define RID_COLORX_MIDNIGHT_HELP            NC_("RID_COLORX_MIDNIGHT_HELP", "Color Midnight blue" )
+#define RID_COLORX_VIOLET_HELP              NC_("RID_COLORX_VIOLET_HELP", "Color Violet" )
+#define RID_COLORX_ORANGE_HELP              NC_("RID_COLORX_ORANGE_HELP", "Color Orange" )
+#define RID_COLORX_ORANGERED_HELP           NC_("RID_COLORX_ORANGERED_HELP", "Color Orangered" )
+#define RID_COLORX_SEAGREEN_HELP            NC_("RID_COLORX_SEAGREEN_HELP", "Color Seagreen" )
+#define RID_COLORX_INDIGO_HELP              NC_("RID_COLORX_INDIGO_HELP", "Color Indigo" )
+#define RID_COLORX_HOTPINK_HELP             NC_("RID_COLORX_HOTPINK_HELP", "Color Hot pink" )
+#define RID_COLORX_LAVENDER_HELP            NC_("RID_COLORX_LAVENDER_HELP", "Color Lavender" )
+#define RID_COLORX_SNOW_HELP                NC_("RID_COLORX_SNOW_HELP", "Color Snow" )
+#define RID_LRGROUPX_HELP                   NC_("RID_LRGROUPX_HELP", "Group Brackets" )
+#define RID_LRPARENTX_HELP                  NC_("RID_LRPARENTX_HELP", "Round Brackets" )
+#define RID_LRBRACKETX_HELP                 NC_("RID_LRBRACKETX_HELP", "Square Brackets" )
+#define RID_LRDBRACKETX_HELP                NC_("RID_LRDBRACKETX_HELP", "Double Square Brackets" )
+#define RID_LRBRACEX_HELP                   NC_("RID_LRBRACEX_HELP", "Braces" )
+#define RID_LRANGLEX_HELP                   NC_("RID_LRANGLEX_HELP", "Angle Brackets" )
+#define RID_LRCEILX_HELP                    NC_("RID_LRCEILX_HELP", "Upper Ceil" )
+#define RID_LRFLOORX_HELP                   NC_("RID_LRFLOORX_HELP", "Floor" )
+#define RID_LRLINEX_HELP                    NC_("RID_LRLINEX_HELP", "Single Lines" )
+#define RID_LRDLINEX_HELP                   NC_("RID_LRDLINEX_HELP", "Double Lines" )
+#define RID_LMRANGLEXY_HELP                 NC_("RID_LMRANGLEXY_HELP", "Operator Brackets" )
+#define RID_SLRPARENTX_HELP                 NC_("RID_SLRPARENTX_HELP", "Round Brackets (Scalable)" )
+#define RID_SLRBRACKETX_HELP                NC_("RID_SLRBRACKETX_HELP", "Square Brackets (Scalable)" )
+#define RID_SLRDBRACKETX_HELP               NC_("RID_SLRDBRACKETX_HELP", "Double Square Brackets (Scalable)" )
+#define RID_SLRBRACEX_HELP                  NC_("RID_SLRBRACEX_HELP", "Braces (Scalable)" )
+#define RID_SLRANGLEX_HELP                  NC_("RID_SLRANGLEX_HELP", "Angle Brackets (Scalable)" )
+#define RID_SLRCEILX_HELP                   NC_("RID_SLRCEILX_HELP", "Ceiling (Scalable)" )
+#define RID_SLRFLOORX_HELP                  NC_("RID_SLRFLOORX_HELP", "Floor (Scalable)" )
+#define RID_SLRLINEX_HELP                   NC_("RID_SLRLINEX_HELP", "Single Lines (Scalable)" )
+#define RID_SLRDLINEX_HELP                  NC_("RID_SLRDLINEX_HELP", "Double Lines (Scalable)" )
+#define RID_SLMRANGLEXY_HELP                NC_("RID_SLMRANGLEXY_HELP", "Operator Brackets (Scalable)" )
+#define RID_XOVERBRACEY_HELP                NC_("RID_XOVERBRACEY_HELP", "Braces Top (Scalable)" )
+#define RID_XUNDERBRACEY_HELP               NC_("RID_XUNDERBRACEY_HELP", "Braces Bottom (Scalable)" )
+#define RID_EVALUATEX_HELP                  NC_("RID_EVALUATEX_HELP", "Evaluate" )
+#define RID_EVALUATE_FROMX_HELP             NC_("RID_EVALUATE_FROMX_HELP", "Evaluate Subscript Bottom" )
+#define RID_EVALUATE_TOX_HELP               NC_("RID_EVALUATE_TOX_HELP", "Evaluate Superscript Top" )
+#define RID_EVALUATE_FROMTOX_HELP           NC_("RID_EVALUATE_FROMTOX_HELP", "Evaluate Sup/Sub script" )
+#define RID_RSUBX_HELP                      NC_("RID_RSUBX_HELP", "Subscript Right" )
+#define RID_RSUPX_HELP                      NC_("RID_RSUPX_HELP", "Power" )
+#define RID_LSUBX_HELP                      NC_("RID_LSUBX_HELP", "Subscript Left" )
+#define RID_LSUPX_HELP                      NC_("RID_LSUPX_HELP", "Superscript Left" )
+#define RID_CSUBX_HELP                      NC_("RID_CSUBX_HELP", "Subscript Bottom" )
+#define RID_CSUPX_HELP                      NC_("RID_CSUPX_HELP", "Superscript Top" )
+#define RID_SBLANK_HELP                     NC_("RID_SBLANK_HELP", "Small Gap" )
+#define RID_BLANK_HELP                      NC_("RID_BLANK_HELP", "Blank" )
+#define RID_NEWLINE_HELP                    NC_("RID_NEWLINE_HELP", "New Line" )
+#define RID_BINOMXY_HELP                    NC_("RID_BINOMXY_HELP", "Vertical Stack (2 Elements)")
+#define RID_STACK_HELP                      NC_("RID_STACK_HELP", "Vertical Stack" )
+#define RID_MATRIX_HELP                     NC_("RID_MATRIX_HELP", "Matrix Stack" )
+#define RID_ALIGNLX_HELP                    NC_("RID_ALIGNLX_HELP", "Align Left" )
+#define RID_ALIGNCX_HELP                    NC_("RID_ALIGNCX_HELP", "Align Center" )
+#define RID_ALIGNRX_HELP                    NC_("RID_ALIGNRX_HELP", "Align Right" )
+#define RID_ALEPH_HELP                      NC_("RID_ALEPH_HELP", "Aleph" )
+#define RID_EMPTYSET_HELP                   NC_("RID_EMPTYSET_HELP", "Empty Set" )
+#define RID_RE_HELP                         NC_("RID_RE_HELP", "Real Part" )
+#define RID_IM_HELP                         NC_("RID_IM_HELP", "Imaginary Part" )
+#define RID_INFINITY_HELP                   NC_("RID_INFINITY_HELP", "Infinity" )
+#define RID_PARTIAL_HELP                    NC_("RID_PARTIAL_HELP", "Partial" )
+#define RID_NABLA_HELP                      NC_("RID_NABLA_HELP", "Nabla" )
+#define RID_LAPLACE_HELP                    NC_("RID_LAPLACE_HELP", "Laplace transform" )
+#define RID_FOURIER_HELP                    NC_("RID_FOURIER_HELP", "Fourier transform" )
+#define RID_BACKEPSILON_HELP                NC_("RID_BACKEPSILON_HELP", "Backwards epsilon" )
+#define RID_WP_HELP                         NC_("RID_WP_HELP", "Weierstrass p" )
+#define RID_DOTSAXIS_HELP                   NC_("RID_DOTSAXIS_HELP", "Dots In Middle" )
+#define RID_DOTSUP_HELP                     NC_("RID_DOTSUP_HELP", "Dots To Top" )
+#define RID_DOTSDOWN_HELP                   NC_("RID_DOTSDOWN_HELP", "Dots To Bottom" )
+#define RID_DOTSLOW_HELP                    NC_("RID_DOTSLOW_HELP", "Dots At Bottom" )
+#define RID_DOTSVERT_HELP                   NC_("RID_DOTSVERT_HELP", "Dots Vertically" )
+#define RID_XCIRCY_HELP                     NC_("RID_XCIRCY_HELP", "Concatenate" )
+#define RID_XWIDESLASHY_HELP                NC_("RID_XWIDESLASHY_HELP", "Division (wideslash)" )
+#define RID_XWIDEBSLASHY_HELP               NC_("RID_XWIDEBSLASHY_HELP", "Division (counter wideslash)" )
+#define RID_XDIVIDESY_HELP                  NC_("RID_XDIVIDESY_HELP", "Divides" )
+#define RID_XNDIVIDESY_HELP                 NC_("RID_XNDIVIDESY_HELP", "Does Not Divide" )
+#define RID_DLARROW_HELP                    NC_("RID_DLARROW_HELP", "Double Arrow Left" )
+#define RID_DLRARROW_HELP                   NC_("RID_DLRARROW_HELP", "Double Arrow Left And Right" )
+#define RID_DRARROW_HELP                    NC_("RID_DRARROW_HELP", "Double Arrow Right" )
+#define RID_SETN_HELP                       NC_("RID_SETN_HELP", "Natural Numbers Set" )
+#define RID_SETZ_HELP                       NC_("RID_SETZ_HELP", "Integers Set" )
+#define RID_SETQ_HELP                       NC_("RID_SETQ_HELP", "Set of Rational Numbers" )
+#define RID_SETR_HELP                       NC_("RID_SETR_HELP", "Real Numbers Set" )
+#define RID_SETC_HELP                       NC_("RID_SETC_HELP", "Complex Numbers Set" )
+#define RID_WIDEHATX_HELP                   NC_("RID_WIDEHATX_HELP", "Large Circumflex" )
+#define RID_WIDETILDEX_HELP                 NC_("RID_WIDETILDEX_HELP", "Large Tilde" )
+#define RID_WIDEVECX_HELP                   NC_("RID_WIDEVECX_HELP", "Large Vector Arrow" )
+#define RID_WIDEHARPOONX_HELP               NC_("RID_WIDEHARPOONX_HELP", "Large Harpoon" )
+#define RID_HBAR_HELP                       NC_("RID_HBAR_HELP", "h Bar" )
+#define RID_LAMBDABAR_HELP                  NC_("RID_LAMBDABAR_HELP", "Lambda Bar" )
+#define RID_LEFTARROW_HELP                  NC_("RID_LEFTARROW_HELP", "Left Arrow" )
+#define RID_RIGHTARROW_HELP                 NC_("RID_RIGHTARROW_HELP", "Right Arrow" )
+#define RID_UPARROW_HELP                    NC_("RID_UPARROW_HELP", "Up Arrow" )
+#define RID_DOWNARROW_HELP                  NC_("RID_DOWNARROW_HELP", "Down Arrow" )
+#define RID_NOSPACE_HELP                    NC_("RID_NOSPACE_HELP", "No space" )
+#define RID_XPRECEDESY_HELP                 NC_("RID_XPRECEDESY_HELP", "Precedes" )
+#define RID_XPRECEDESEQUALY_HELP            NC_("RID_XPRECEDESEQUALY_HELP", "Precedes or equal to" )
+#define RID_XPRECEDESEQUIVY_HELP            NC_("RID_XPRECEDESEQUIVY_HELP", "Precedes or equivalent to" )
+#define RID_XSUCCEEDSY_HELP                 NC_("RID_XSUCCEEDSY_HELP", "Succeeds" )
+#define RID_XSUCCEEDSEQUALY_HELP            NC_("RID_XSUCCEEDSEQUALY_HELP", "Succeeds or equal to" )
+#define RID_XSUCCEEDSEQUIVY_HELP            NC_("RID_XSUCCEEDSEQUIVY_HELP", "Succeeds or equivalent to" )
+#define RID_XNOTPRECEDESY_HELP              NC_("RID_XNOTPRECEDESY_HELP", "Does not precede" )
+#define RID_XNOTSUCCEEDSY_HELP              NC_("RID_XNOTSUCCEEDSY_HELP", "Does not succeed" )
+#define RID_CATEGORY_UNARY_BINARY_OPERATORS NC_("RID_CATEGORY_UNARY_BINARY_OPERATORS", "Unary/Binary Operators" )
+#define RID_CATEGORY_RELATIONS              NC_("RID_CATEGORY_RELATIONS", "Relations" )
+#define RID_CATEGORY_SET_OPERATIONS         NC_("RID_CATEGORY_SET_OPERATIONS", "Set Operations" )
+#define RID_CATEGORY_FUNCTIONS              NC_("RID_CATEGORY_FUNCTIONS", "Functions" )
+#define RID_CATEGORY_OPERATORS              NC_("RID_CATEGORY_OPERATORS", "Operators" )
+#define RID_CATEGORY_ATTRIBUTES             NC_("RID_CATEGORY_ATTRIBUTES", "Attributes" )
+#define RID_CATEGORY_BRACKETS               NC_("RID_CATEGORY_BRACKETS", "Brackets" )
+#define RID_CATEGORY_FORMATS                NC_("RID_CATEGORY_FORMATS", "Formats" )
+#define RID_CATEGORY_OTHERS                 NC_("RID_CATEGORY_OTHERS", "Others" )
+#define RID_CATEGORY_EXAMPLES               NC_("RID_CATEGORY_EXAMPLES", "Examples" )
+
+#define RID_EXAMPLE_CIRCUMFERENCE_HELP      NC_("RID_EXAMPLE_CIRCUMFERENCE_HELP", "Circumference" )
+#define RID_EXAMPLE_MASS_ENERGY_EQUIV_HELP  NC_("RID_EXAMPLE_MASS_ENERGY_EQUIV_HELP", "Mass–energy equivalence" )
+#define RID_EXAMPLE_PYTHAGOREAN_THEO_HELP   NC_("RID_EXAMPLE_PYTHAGOREAN_THEO_HELP", "Pythagorean theorem" )
+#define RID_EXAMPLE_A_TAYLOR_SERIES_HELP    NC_("RID_EXAMPLE_A_TAYLOR_SERIES_HELP", "Taylor series" )
+#define RID_EXAMPLE_GAUSS_DISTRIBUTION_HELP NC_("RID_EXAMPLE_GAUSS_DISTRIBUTION_HELP", "Gauss distribution" )
+#define RID_EXAMPLE_EULER_LAGRANGE_HELP     NC_("RID_EXAMPLE_EULER_LAGRANGE_HELP", "Euler-Lagrange equation" )
+#define RID_EXAMPLE_FTC_HELP                NC_("RID_EXAMPLE_FTC_HELP", "Fundamental theorem of calculus" )
+#define RID_EXAMPLE_CHAOS_HELP              NC_("RID_EXAMPLE_CHAOS_HELP", "Chaos equation" )
+#define RID_EXAMPLE_EULER_IDENTITY_HELP     NC_("RID_EXAMPLE_EULER_IDENTITY_HELP", "Euler's identity" )
+#define RID_EXAMPLE_2NEWTON                 NC_("RID_EXAMPLE_2NEWTON", "Newton's second law" )
+#define RID_EXAMPLE_GENERAL_RELATIVITY_HELP NC_("RID_EXAMPLE_GENERAL_RELATIVITY_HELP", "General relativity")
+#define RID_EXAMPLE_SPECIAL_RELATIVITY_HELP NC_("RID_EXAMPLE_SPECIAL_RELATIVITY_HELP", "Special relativity")
+
+#define RID_FONTREGULAR                     NC_("RID_FONTREGULAR", "Standard" )
+#define RID_FONTITALIC                      NC_("RID_FONTITALIC", "Italic" )
+#define RID_FONTBOLD                        NC_("RID_FONTBOLD", "Bold" )
+#define STR_BLACK                           NC_("STR_BLACK", "black" )
+#define STR_BLUE                            NC_("STR_BLUE", "blue" )
+#define STR_GREEN                           NC_("STR_GREEN", "green" )
+#define STR_RED                             NC_("STR_RED", "red" )
+#define STR_AQUA                            NC_("STR_AQUA", "aqua" )
+#define STR_FUCHSIA                         NC_("STR_FUCHSIA", "fuchsia" )
+#define STR_GRAY                            NC_("STR_GRAY", "gray" )
+#define STR_LIME                            NC_("STR_LIME", "lime" )
+#define STR_MAROON                          NC_("STR_MAROON", "maroon" )
+#define STR_NAVY                            NC_("STR_NAVY", "navy" )
+#define STR_OLIVE                           NC_("STR_OLIVE", "olive" )
+#define STR_PURPLE                          NC_("STR_PURPLE", "purple" )
+#define STR_SILVER                          NC_("STR_SILVER", "silver" )
+#define STR_TEAL                            NC_("STR_TEAL", "teal" )
+#define STR_YELLOW                          NC_("STR_YELLOW", "yellow" )
+#define STR_CORAL                           NC_("STR_CORAL", "coral" )
+#define STR_CRIMSON                         NC_("STR_CRIMSON", "crimson" )
+#define STR_MIDNIGHT                        NC_("STR_MIDNIGHT", "midnight" )
+#define STR_VIOLET                          NC_("STR_VIOLET", "violet" )
+#define STR_ORANGE                          NC_("STR_ORANGE", "orange" )
+#define STR_ORANGERED                       NC_("STR_ORANGERED", "orangered" )
+#define STR_LAVENDER                        NC_("STR_LAVENDER", "lavender" )
+#define STR_SNOW                            NC_("STR_SNOW", "snow" )
+#define STR_SEAGREEN                        NC_("STR_SEAGREEN", "seagreen" )
+#define STR_INDIGO                          NC_("STR_INDIGO", "indigo" )
+#define STR_HOTPINK                         NC_("STR_HOTPINK", "hotpink" )
+#define STR_RGB                             NC_("STR_RGB", "rgb" )
+#define STR_RGBA                            NC_("STR_RGBA", "rgba" )
+#define STR_HEX                             NC_("STR_HEX", "hex" )
+#define STR_HIDE                            NC_("STR_HIDE", "hide" )
+#define STR_SIZE                            NC_("STR_SIZE", "size" )
+#define STR_FONT                            NC_("STR_FONT", "font" )
+#define STR_ALIGN_LEFT                      NC_("STR_ALIGN_LEFT", "left" )
+#define STR_ALIGN_CENTER                    NC_("STR_ALIGN_CENTER", "center" )
+#define STR_ALIGN_RIGHT                     NC_("STR_ALIGN_RIGHT", "right" )
+#define STR_CMDBOXWINDOW                    NC_("STR_CMDBOXWINDOW", "Commands" )
+#define RID_DOCUMENTSTR                     NC_("RID_DOCUMENTSTR", "Formula" )
+#define STR_STATSTR_WRITING                 NC_("STR_STATSTR_WRITING", "Saving document..." )
+#define STR_MATH_DOCUMENT_FULLTYPE_CURRENT  NC_("STR_MATH_DOCUMENT_FULLTYPE_CURRENT", "%PRODUCTNAME %PRODUCTVERSION Formula")
+#define RID_ERR_IDENT                       NC_("RID_ERR_IDENT", "ERROR : " )
+#define RID_ERR_NONE                        NC_("RID_ERR_NONE", "no error" )
+#define RID_ERR_UNEXPECTEDCHARACTER         NC_("RID_ERR_UNEXPECTEDCHARACTER", "Unexpected character" )
+#define RID_ERR_UNEXPECTEDTOKEN             NC_("RID_ERR_UNEXPECTEDTOKEN", "Unexpected token" )
+#define RID_ERR_LGROUPEXPECTED              NC_("RID_ERR_LGROUPEXPECTED", "'{' expected" )
+#define RID_ERR_RGROUPEXPECTED              NC_("RID_ERR_RGROUPEXPECTED", "'}' expected" )
+#define RID_ERR_LBRACEEXPECTED              NC_("RID_ERR_LBRACEEXPECTED", "'(' expected" )
+#define RID_ERR_RBRACEEXPECTED              NC_("RID_ERR_RBRACEEXPECTED", "')' expected" )
+#define RID_ERR_PARENTMISMATCH              NC_("RID_ERR_PARENTMISMATCH", "Left and right symbols mismatched" )
+#define RID_ERR_FONTEXPECTED                NC_("RID_ERR_FONTEXPECTED", "'fixed', 'sans', or 'serif' expected" )
+#define RID_ERR_SIZEEXPECTED                NC_("RID_ERR_SIZEEXPECTED", "'size' followed by an unexpected token" )
+#define RID_ERR_DOUBLEALIGN                 NC_("RID_ERR_DOUBLEALIGN", "Double aligning is not allowed" )
+#define RID_ERR_DOUBLESUBSUPSCRIPT          NC_("RID_ERR_DOUBLESUBSUPSCRIPT", "Double sub/superscripts is not allowed" )
+#define RID_ERR_NUMBEREXPECTED              NC_("RID_ERR_NUMBEREXPECTED", "Expected number" )
+#define RID_ERR_POUNDEXPECTED               NC_("RID_ERR_POUNDEXPECTED", "'#' expected" )
+#define RID_ERR_COLOREXPECTED               NC_("RID_ERR_COLOREXPECTED", "Color required" )
+#define RID_ERR_RIGHTEXPECTED               NC_("RID_ERR_RIGHTEXPECTED", "'RIGHT' expected" )
+#define RID_PRINTUIOPT_PRODNAME             NC_("RID_PRINTUIOPT_PRODNAME", "%PRODUCTNAME %s" )
+#define RID_PRINTUIOPT_CONTENTS             NC_("RID_PRINTUIOPT_CONTENTS", "Contents" )
+#define RID_PRINTUIOPT_TITLE                NC_("RID_PRINTUIOPT_TITLE", "~Title" )
+#define RID_PRINTUIOPT_FRMLTXT              NC_("RID_PRINTUIOPT_FRMLTXT", "~Formula text" )
+#define RID_PRINTUIOPT_BORDERS              NC_("RID_PRINTUIOPT_BORDERS", "B~orders" )
+#define RID_PRINTUIOPT_SIZE                 NC_("RID_PRINTUIOPT_SIZE", "Size" )
+#define RID_PRINTUIOPT_ORIGSIZE             NC_("RID_PRINTUIOPT_ORIGSIZE", "O~riginal size" )
+#define RID_PRINTUIOPT_FITTOPAGE            NC_("RID_PRINTUIOPT_FITTOPAGE", "Fit to ~page" )
+#define RID_PRINTUIOPT_SCALING              NC_("RID_PRINTUIOPT_SCALING", "~Scaling" )
+// clang-format on
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/strings.hxx b/starmath/inc/strings.hxx
new file mode 100644
index 000000000..e22625155
--- /dev/null
+++ b/starmath/inc/strings.hxx
@@ -0,0 +1,305 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/** Those are the starmath codes for ElementsDockingWindow.hxx.
+  *
+  * Those codes will be displayed as formulas on the ElementsDockingWindow.
+  * The user can then graphically insert them.
+  */
+
+#pragma once
+
+#include <rtl/ustring.hxx>
+
+inline constexpr OUStringLiteral RID_UNDOFORMATNAME = u"Format";
+
+// clang-format off
+#define RID_PLUSX               "+<?> "
+#define RID_MINUSX              "-<?> "
+#define RID_PLUSMINUSX          "+-<?> "
+#define RID_MINUSPLUSX          "-+<?> "
+#define RID_NEGX                "neg <?> "
+#define RID_XPLUSY              "<?> + <?> "
+#define RID_XMINUSY             "<?> - <?> "
+#define RID_XCDOTY              "<?> cdot <?> "
+#define RID_XTIMESY             "<?> times <?> "
+#define RID_XSYMTIMESY          "<?> * <?> "
+#define RID_XSYMDIVIDEY         "<?> / <?> "
+#define RID_XDIVY               "<?> div <?> "
+#define RID_XOVERY              "{<?>} over {<?>} "
+#define RID_FRACXY              "frac {<?>} {<?>} "
+#define RID_XODIVIDEY           "<?> odivide <?> "
+#define RID_XODOTY              "<?> odot <?> "
+#define RID_XOMINUSY            "<?> ominus <?> "
+#define RID_XOPLUSY             "<?> oplus <?> "
+#define RID_XOTIMESY            "<?> otimes <?> "
+#define RID_XANDY               "<?> and <?> "
+#define RID_XORY                "<?> or <?> "
+#define RID_XEQY                "<?> = <?> "
+#define RID_XNEQY               "<?> <> <?> "
+#define RID_XLTY                "<?> < <?> "
+#define RID_XGTY                "<?> > <?> "
+#define RID_XLEY                "<?> <= <?> "
+#define RID_XGEY                "<?> >= <?> "
+#define RID_XLESLANTY           "<?> leslant <?> "
+#define RID_XGESLANTY           "<?> geslant <?> "
+#define RID_XLLY                "<?> << <?> "
+#define RID_XGGY                "<?> >> <?> "
+#define RID_XDEFY               "<?> def <?> "
+#define RID_XEQUIVY             "<?> equiv <?> "
+#define RID_XAPPROXY            "<?> approx <?> "
+#define RID_XSIMY               "<?> sim <?> "
+#define RID_XSIMEQY             "<?> simeq <?> "
+#define RID_XPROPY              "<?> prop <?> "
+#define RID_XORTHOY             "<?> ortho <?> "
+#define RID_XPARALLELY          "<?> parallel <?> "
+#define RID_XTOWARDY            "<?> toward <?> "
+#define RID_XTRANSLY            "<?> transl <?> "
+#define RID_XTRANSRY            "<?> transr <?> "
+#define RID_XINY                "<?> in <?> "
+#define RID_XNOTINY             "<?> notin <?> "
+#define RID_XOWNSY              "<?> owns <?> "
+#define RID_XUNIONY             "<?> union <?> "
+#define RID_XINTERSECTIONY      "<?> intersection <?> "
+#define RID_XSETMINUSY          "<?> setminus <?> "
+#define RID_XSETQUOTIENTY       "<?> setquotient <?> "
+#define RID_XSUBSETY            "<?> subset <?> "
+#define RID_XSUBSETEQY          "<?> subseteq <?> "
+#define RID_XSUPSETY            "<?> supset <?> "
+#define RID_XSUPSETEQY          "<?> supseteq <?> "
+#define RID_XNSUBSETY           "<?> nsubset <?> "
+#define RID_XNSUBSETEQY         "<?> nsubseteq <?> "
+#define RID_XNSUPSETY           "<?> nsupset <?> "
+#define RID_XNSUPSETEQY         "<?> nsupseteq <?> "
+#define RID_FUNCX               "func <?>(<?>) "
+#define RID_ABSX                "abs{<?>} "
+#define RID_FACTX               "fact{<?>} "
+#define RID_SQRTX               "sqrt{<?>} "
+#define RID_NROOTXY             "nroot{<?>}{<?>} "
+#define RID_EX                  "func e^{<?>} "
+#define RID_EXPX                "exp(<?>) "
+#define RID_LNX                 "ln(<?>) "
+#define RID_LOGX                "log(<?>) "
+#define RID_SINX                "sin(<?>) "
+#define RID_COSX                "cos(<?>) "
+#define RID_TANX                "tan(<?>) "
+#define RID_COTX                "cot(<?>) "
+#define RID_ARCSINX             "arcsin(<?>) "
+#define RID_ARCCOSX             "arccos(<?>) "
+#define RID_ARCTANX             "arctan(<?>) "
+#define RID_ARCCOTX             "arccot(<?>) "
+#define RID_SINHX               "sinh(<?>) "
+#define RID_COSHX               "cosh(<?>) "
+#define RID_TANHX               "tanh(<?>) "
+#define RID_COTHX               "coth(<?>) "
+#define RID_ARSINHX             "arsinh(<?>) "
+#define RID_ARCOSHX             "arcosh(<?>) "
+#define RID_ARTANHX             "artanh(<?>) "
+#define RID_ARCOTHX             "arcoth(<?>) "
+#define RID_OPERX               "oper oper <?> "
+#define RID_OPER_FROMX          "oper oper from{<?>} <?> "
+#define RID_OPER_TOX            "oper oper to{<?>} <?> "
+#define RID_OPER_FROMTOX        "oper oper from{<?>} to{<?>} <?> "
+#define RID_SUMX                "sum <?> "
+#define RID_SUM_FROMX           "sum from{<?>} <?> "
+#define RID_SUM_TOX             "sum to{<?>} <?> "
+#define RID_SUM_FROMTOX         "sum from{<?>} to{<?>} <?> "
+#define RID_PRODX               "prod <?> "
+#define RID_PROD_FROMX          "prod from{<?>} <?> "
+#define RID_PROD_TOX            "prod to{<?>} <?> "
+#define RID_PROD_FROMTOX        "prod from{<?>} to{<?>} <?> "
+#define RID_COPRODX             "coprod <?> "
+#define RID_COPROD_FROMX        "coprod from{<?>} <?> "
+#define RID_COPROD_TOX          "coprod to{<?>} <?> "
+#define RID_COPROD_FROMTOX      "coprod from{<?>} to{<?>} <?> "
+#define RID_LIMX                "lim <?> "
+#define RID_LIM_FROMX           "lim from{<?>} <?> "
+#define RID_LIM_TOX             "lim to{<?>} <?> "
+#define RID_LIM_FROMTOX         "lim from{<?>} to{<?>} <?> "
+#define RID_LIMINFX             "liminf <?> "
+#define RID_LIMINF_FROMX        "liminf from{<?>} <?> "
+#define RID_LIMINF_TOX          "liminf to{<?>} <?> "
+#define RID_LIMINF_FROMTOX      "liminf from{<?>} to{<?>} <?> "
+#define RID_LIMSUPX             "limsup <?> "
+#define RID_LIMSUP_FROMX        "limsup from{<?>} <?> "
+#define RID_LIMSUP_TOX          "limsup to{<?>} <?> "
+#define RID_LIMSUP_FROMTOX      "limsup from{<?>} to{<?>} <?> "
+#define RID_EXISTS              "exists "
+#define RID_NOTEXISTS           "notexists "
+#define RID_FORALL              "forall "
+#define RID_INTX                "int <?> "
+#define RID_INT_FROMX           "int from{<?>} <?> "
+#define RID_INT_TOX             "int to{<?>} <?> "
+#define RID_INT_FROMTOX         "int from{<?>} to{<?>} <?> "
+#define RID_IINTX               "iint <?> "
+#define RID_IINT_FROMX          "iint from{<?>} <?> "
+#define RID_IINT_TOX            "iint to{<?>} <?> "
+#define RID_IINT_FROMTOX        "iint from{<?>} to{<?>} <?> "
+#define RID_IIINTX              "iiint <?> "
+#define RID_IIINT_FROMX         "iiint from{<?>} <?> "
+#define RID_IIINT_TOX           "iiint to{<?>} <?> "
+#define RID_IIINT_FROMTOX       "iiint from{<?>} to{<?>} <?> "
+#define RID_LINTX               "lint <?> "
+#define RID_LINT_FROMX          "lint from{<?>} <?> "
+#define RID_LINT_TOX            "lint to{<?>} <?> "
+#define RID_LINT_FROMTOX        "lint from{<?>} to{<?>} <?> "
+#define RID_LLINTX              "llint <?> "
+#define RID_LLINT_FROMX         "llint from{<?>} <?> "
+#define RID_LLINT_TOX           "llint to{<?>} <?> "
+#define RID_LLINT_FROMTOX       "llint from{<?>} to{<?>} <?> "
+#define RID_LLLINTX             "lllint <?> "
+#define RID_LLLINT_FROMX        "lllint from{<?>} <?> "
+#define RID_LLLINT_TOX          "lllint to{<?>} <?> "
+#define RID_LLLINT_FROMTOX      "lllint from{<?>} to{<?>} <?> "
+#define RID_FROMX               "from{<?>} <?> "
+#define RID_TOX                 "to{<?>} <?> "
+#define RID_FROMXTOY            "from{<?>} to{<?>} <?> "
+#define RID_ACUTEX              "acute <?> "
+#define RID_BARX                "bar <?> "
+#define RID_BREVEX              "breve <?> "
+#define RID_CHECKX              "check <?> "
+#define RID_CIRCLEX             "circle <?> "
+#define RID_DOTX                "dot <?> "
+#define RID_DDOTX               "ddot <?> "
+#define RID_DDDOTX              "dddot <?> "
+#define RID_GRAVEX              "grave <?> "
+#define RID_HATX                "hat <?> "
+#define RID_TILDEX              "tilde <?> "
+#define RID_VECX                "vec <?> "
+#define RID_HARPOONX            "harpoon <?> "
+#define RID_UNDERLINEX          "underline {<?>} "
+#define RID_OVERLINEX           "overline {<?>} "
+#define RID_OVERSTRIKEX         "overstrike {<?>} "
+#define RID_PHANTOMX            "phantom {<?>} "
+#define RID_BOLDX               "bold <?> "
+#define RID_ITALX               "ital <?> "
+#define RID_SIZEXY              "size <?> {<?>} "
+#define RID_FONTXY              "font <?> {<?>} "
+#define RID_COLORX_BLACK        "color black {<?>} "
+#define RID_COLORX_BLUE         "color blue {<?>} "
+#define RID_COLORX_GREEN        "color green {<?>} "
+#define RID_COLORX_RED          "color red {<?>} "
+#define RID_COLORX_AQUA         "color aqua {<?>} "
+#define RID_COLORX_FUCHSIA      "color fuchsia {<?>} "
+#define RID_COLORX_GRAY         "color gray {<?>} "
+#define RID_COLORX_LIME         "color lime {<?>} "
+#define RID_COLORX_MAROON       "color maroon {<?>} "
+#define RID_COLORX_NAVY         "color navy {<?>} "
+#define RID_COLORX_OLIVE        "color olive {<?>} "
+#define RID_COLORX_PURPLE       "color purple {<?>} "
+#define RID_COLORX_SILVER       "color silver {<?>} "
+#define RID_COLORX_TEAL         "color teal {<?>} "
+#define RID_COLORX_YELLOW       "color yellow {<?>} "
+#define RID_COLORX_RGB          "color rgb 0 0 0 {<?>} "
+#define RID_COLORX_RGBA         "color rgba 0 0 0 0 {<?>} "
+#define RID_COLORX_HEX          "color hex 000000 {<?>} "
+#define RID_COLORX_CORAL        "color coral {<?>} "
+#define RID_COLORX_CRIMSON      "color crimson {<?>} "
+#define RID_COLORX_MIDNIGHT     "color midnightblue {<?>} "
+#define RID_COLORX_VIOLET       "color violet {<?>} "
+#define RID_COLORX_ORANGE       "color orange {<?>} "
+#define RID_COLORX_ORANGERED    "color orangered {<?>} "
+#define RID_COLORX_SEAGREEN     "color seagreen {<?>} "
+#define RID_COLORX_INDIGO       "color indigo {<?>} "
+#define RID_COLORX_HOTPINK      "color hotpink {<?>} "
+#define RID_COLORX_LAVENDER     "color lavender {<?>} "
+#define RID_COLORX_SNOW         "color snow {<?>} "
+#define RID_LRGROUPX            "{<?>} "
+#define RID_LRPARENTX           "(<?>) "
+#define RID_LRBRACKETX          "[<?>] "
+#define RID_LRDBRACKETX         "ldbracket <?> rdbracket "
+#define RID_LRBRACEX            "lbrace <?> rbrace "
+#define RID_LRANGLEX            "langle <?> rangle "
+#define RID_LRCEILX             "lceil <?> rceil "
+#define RID_LRFLOORX            "lfloor <?> rfloor "
+#define RID_LRLINEX             "lline <?> rline "
+#define RID_LRDLINEX            "ldline <?> rdline "
+#define RID_LMRANGLEXY          "langle <?> mline <?> rangle "
+#define RID_SLRPARENTX          "left ( <?> right ) "
+#define RID_SLRBRACKETX         "left [ <?> right ] "
+#define RID_SLRDBRACKETX        "left ldbracket <?> right rdbracket "
+#define RID_SLRBRACEX           "left lbrace <?> right rbrace "
+#define RID_SLRANGLEX           "left langle <?> right rangle "
+#define RID_SLRCEILX            "left lceil <?> right rceil "
+#define RID_SLRFLOORX           "left lfloor <?> right rfloor "
+#define RID_SLRLINEX            "left lline <?> right rline "
+#define RID_SLRDLINEX           "left ldline <?> right rdline "
+#define RID_SLMRANGLEXY         "left langle <?> mline <?> right rangle "
+#define RID_XOVERBRACEY         "{<?>} overbrace {<?>} "
+#define RID_XUNDERBRACEY        "{<?>} underbrace {<?>} "
+#define RID_EVALX               "evaluate <?> "
+#define RID_EVAL_FROMX          "evaluate {<?>} from{<?>} "
+#define RID_EVAL_TOX            "evaluate {<?>} to{<?>} "
+#define RID_EVAL_FROMTOX        "evaluate {<?>} from{<?>} to{<?>} "
+#define RID_RSUBX               "<?>_{<?>} "
+#define RID_RSUPX               "<?>^{<?>} "
+#define RID_LSUBX               "<?> lsub{<?>} "
+#define RID_LSUPX               "<?> lsup{<?>} "
+#define RID_CSUBX               "<?> csub{<?>} "
+#define RID_CSUPX               "<?> csup{<?>} "
+#define RID_SBLANK              "` "
+#define RID_BLANK               "~ "
+#define RID_NEWLINE             "newline "
+#define RID_BINOMXY             "binom{<?>}{<?>} "
+#define RID_STACK               "stack{<?> # <?> # <?>} "
+#define RID_MATRIX              "matrix{<?> # <?> ## <?> # <?>} "
+#define RID_ALIGNLX             "alignl <?> "
+#define RID_ALIGNCX             "alignc <?> "
+#define RID_ALIGNRX             "alignr <?> "
+#define RID_ALEPH               "aleph "
+#define RID_EMPTYSET            "emptyset "
+#define RID_RE                  "Re "
+#define RID_IM                  "Im "
+#define RID_INFINITY            "infinity "
+#define RID_PARTIAL             "partial "
+#define RID_NABLA               "nabla "
+#define RID_WP                  "wp "
+#define RID_LAPLACE             "laplace "
+#define RID_BACKEPSILON         "backepsilon "
+#define RID_FOURIER             "fourier "
+#define RID_DOTSAXIS            "dotsaxis "
+#define RID_DOTSUP              "dotsup "
+#define RID_DOTSDOWN            "dotsdown "
+#define RID_DOTSLOW             "dotslow "
+#define RID_DOTSVERT            "dotsvert "
+#define RID_XCIRCY              "<?> circ <?> "
+#define RID_XWIDESLASHY         "{<?>} wideslash {<?>} "
+#define RID_XWIDEBSLASHY        "{<?>} widebslash {<?>} "
+#define RID_XDIVIDESY           "<?> divides <?> "
+#define RID_XNDIVIDESY          "<?> ndivides <?> "
+#define RID_DLARROW             "<?> dlarrow <?> "
+#define RID_DLRARROW            "<?> dlrarrow <?> "
+#define RID_DRARROW             "<?> drarrow <?> "
+#define RID_SETN                "setN "
+#define RID_SETZ                "setZ "
+#define RID_SETQ                "setQ "
+#define RID_SETR                "setR "
+#define RID_SETC                "setC "
+#define RID_WIDEHATX            "widehat {<?>} "
+#define RID_WIDETILDEX          "widetilde {<?>} "
+#define RID_WIDEVECX            "widevec {<?>} "
+#define RID_WIDEHARPOONX        "wideharpoon {<?>} "
+#define RID_HBAR                "hbar "
+#define RID_LAMBDABAR           "lambdabar "
+#define RID_LEFTARROW           "leftarrow "
+#define RID_RIGHTARROW          "rightarrow "
+#define RID_UPARROW             "uparrow "
+#define RID_DOWNARROW           "downarrow "
+#define RID_NOSPACE             "nospace {<?>} "
+#define RID_XPRECEDESY          "<?> prec <?> "
+#define RID_XPRECEDESEQUALY     "<?> preccurlyeq <?> "
+#define RID_XPRECEDESEQUIVY     "<?> precsim <?> "
+#define RID_XSUCCEEDSY          "<?> succ <?> "
+#define RID_XSUCCEEDSEQUALY     "<?> succcurlyeq <?> "
+#define RID_XSUCCEEDSEQUIVY     "<?> succsim <?> "
+#define RID_XNOTPRECEDESY       "<?> nprec <?> "
+#define RID_XNOTSUCCEEDSY       "<?> nsucc <?> "
+// clang-format on
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/inc/symbol.hxx b/starmath/inc/symbol.hxx
new file mode 100644
index 000000000..39ce0be6e
--- /dev/null
+++ b/starmath/inc/symbol.hxx
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/** This stuff is used to work with %charname.
+  *
+  * Will remember the char name, char code and font.
+  */
+
+#pragma once
+
+#include <map>
+#include <vector>
+#include <set>
+
+#include "utility.hxx"
+
+
+#define SYMBOL_NONE     0xFFFF
+
+class SmSym
+{
+private:
+    SmFace              m_aFace;
+    OUString            m_aName;
+    OUString            m_aExportName;
+    OUString            m_aSetName;
+    sal_UCS4            m_cChar;
+    bool                m_bPredefined;
+
+public:
+    SmSym();
+    SmSym(const OUString& rName, const vcl::Font& rFont, sal_UCS4 cChar,
+          const OUString& rSet, bool bIsPredefined = false);
+    SmSym(const SmSym& rSymbol);
+
+    SmSym&      operator = (const SmSym& rSymbol);
+
+    const vcl::Font&  GetFace() const { return m_aFace; }
+    sal_UCS4        GetCharacter() const { return m_cChar; }
+    const OUString&   GetName() const { return m_aName; }
+
+    bool            IsPredefined() const        { return m_bPredefined; }
+    const OUString& GetSymbolSetName() const    { return m_aSetName; }
+    const OUString& GetExportName() const       { return m_aExportName; }
+    void            SetExportName( const OUString &rName )        { m_aExportName = rName; }
+
+    // true if rSymbol has the same name, font and character
+    bool            IsEqualInUI( const SmSym& rSymbol ) const;
+};
+
+// type of the actual container to hold the symbols
+typedef std::map< OUString, SmSym >    SymbolMap_t;
+
+// vector of pointers to the actual symbols in the above container
+typedef std::vector< const SmSym * >            SymbolPtrVec_t;
+
+
+class SmSymbolManager
+{
+private:
+    SymbolMap_t         m_aSymbols;
+    bool                m_bModified;
+
+public:
+    SmSymbolManager();
+    SmSymbolManager(const SmSymbolManager& rSymbolSetManager);
+    ~SmSymbolManager();
+
+    SmSymbolManager &   operator = (const SmSymbolManager& rSymbolSetManager);
+
+    // symbol sets are for UI purpose only, thus we assemble them here
+    std::set< OUString >      GetSymbolSetNames() const;
+    SymbolPtrVec_t          GetSymbolSet(  std::u16string_view rSymbolSetName );
+
+    SymbolPtrVec_t          GetSymbols() const;
+    bool                    AddOrReplaceSymbol( const SmSym & rSymbol, bool bForceChange = false );
+    void                    RemoveSymbol( const OUString & rSymbolName );
+
+    SmSym       *   GetSymbolByName(const OUString& rSymbolName);
+    const SmSym *   GetSymbolByName(const OUString& rSymbolName) const
+    {
+        return const_cast<SmSymbolManager *>(this)->GetSymbolByName(rSymbolName);
+    }
+
+    bool        IsModified() const          { return m_bModified; }
+    void        SetModified(bool bModify)   { m_bModified = bModify; }
+
+    void        Load();
+    void        Save();
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/token.hxx b/starmath/inc/token.hxx
new file mode 100644
index 000000000..d3e141e5a
--- /dev/null
+++ b/starmath/inc/token.hxx
@@ -0,0 +1,285 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/** The tokens contain the information gathered by the parser.
+   *
+   * They contain:
+   *    the data type (~ mathematical operation).
+   *    The mathematical char.
+   *    The corresponding code or information to recreate it.
+   *    Location of the token in the starmath code.
+   */
+
+#pragma once
+
+#include <tools/color.hxx>
+#include <o3tl/string_view.hxx>
+#include <o3tl/typed_flags_set.hxx>
+
+// std imports
+#include <memory>
+
+// TokenGroups
+enum class TG
+{
+    NONE = 0x000000,
+    Oper = 0x000001,
+    Relation = 0x000002,
+    Sum = 0x000004,
+    Product = 0x000008,
+    UnOper = 0x000010,
+    Power = 0x000020,
+    Attribute = 0x000040,
+    Align = 0x000080,
+    Function = 0x000100,
+    Blank = 0x000200,
+    LBrace = 0x000400,
+    RBrace = 0x000800,
+    Color = 0x001000,
+    Font = 0x002000,
+    Standalone = 0x004000,
+    Limit = 0x010000,
+    FontAttr = 0x020000
+};
+
+namespace o3tl
+{
+template <> struct typed_flags<TG> : is_typed_flags<TG, 0x037fff>
+{
+};
+}
+
+// Tokens identifiers. Allow to know what kind of information the node contains.
+enum SmTokenType
+{
+    // clang-format off
+    // Uncategorized
+    TEND,           TSPECIAL,       TNONE,          TESCAPE,        TUNKNOWN,
+    TBLANK,         TSBLANK,        TPLACE,         TNOSPACE,       TDOTSDOWN,
+    TNEWLINE,       TDOTSAXIS,      TDOTSLOW,       TDOTSVERT,      TBACKEPSILON,
+    TDOTSDIAG,      TDOTSUP,        TERROR,
+    // Basic
+    TPLUS,          TMINUS,         TMULTIPLY,      TDIVIDEBY,      // +-*/
+    TGT,            TLT,            TGE,            TLE,            // > < >= <=
+    TASSIGN,        TNEQ,           TGG,            TLL,            // = != >>> <<<
+    TPARALLEL,      TORTHO,         TEQUIV,                         // Geometry
+    TOPER,          TSUM,           TPROD,          TCOPROD,        // Operators
+    TIM,            TRE,            THBAR,          TLAMBDABAR,     // Complex and constants
+    TPLUSMINUS,     TMINUSPLUS,     TSIM,           TSIMEQ,         // +- -+ ~ ~=
+    TLIM,           TLIMSUP,        TLIMINF,        TTOWARD,        // Limits
+    TOVER,          TTIMES,         TCDOT,          TDIV,           // Product type
+    TSLASH,         TBACKSLASH,     TWIDESLASH,     TWIDEBACKSLASH, //Slash
+    TFRAC,          TIT,                                            // mathml related
+    // Structure
+    TMATRIX,         TPOUND,        TDPOUND,        TSTACK,         TBINOM,
+    // Logic
+    TAND,           TOR,            TNEG,                           // && || !
+    TPRECEDES,      TSUCCEEDS,      TNOTPRECEDES,   TNOTSUCCEEDS,   // Order
+    TPRECEDESEQUAL, TSUCCEEDSEQUAL, TPRECEDESEQUIV, TSUCCEEDSEQUIV, // Order eq
+    TLEFTARROW,     TRIGHTARROW,    TUPARROW,       TDOWNARROW,     // Arrows
+    TDRARROW,       TDLARROW,       TDLRARROW,      TDEF,           // Double arrows, definition
+    TPROP,          TNDIVIDES,      TDIVIDES,       TAPPROX,        // Proportions, approximation
+    TLESLANT,       TGESLANT,       TTRANSL,        TTRANSR,        // <= >= corresponds
+    // Tensors
+    TOPLUS,         TOMINUS,        TOTIMES,        TODIVIDE,       TODOT,
+    TCIRC,
+    // Positions
+    TRSUB,          TRSUP,          TCSUB,          TCSUP,          TLSUB,
+    TLSUP,          TFROM,          TTO,            TUOPER,         TBOPER,
+    // Set theory
+    TSETN,          TSETZ,          TSETQ,          TSETR,          TSETC,
+    TIN,            TNOTIN,         TNI,            TEMPTYSET,      // Insideout
+    TSUBSET,        TSUBSETEQ,      TSUPSET,        TSUPSETEQ,      // Subsupset
+    TNSUBSET,       TNSUPSET,       TNSUBSETEQ,     TNSUPSETEQ,     // Not subsupset
+    TINTERSECT,     TUNION,         TSETMINUS,      TSETQUOTIENT,   // +-/
+    TALEPH,         TWP,            TINFINITY,                      // Abstract sets
+    TFORALL,        TEXISTS,        TNOTEXISTS,                     // Existential
+    // Font
+    TFONT,          TSIZE,          TCOLOR,         TPHANTOM,       // Basic
+    TITALIC,        TNITALIC,       TBOLD,          TNBOLD,         // Bold ital
+    TALIGNL,        TALIGNC,        TALIGNR,                        // Align
+    TUNDERLINE,     TOVERLINE,      TOVERSTRIKE,    TBAR,           // Lines
+    TFIXED,         TSANS,          TSERIF,                         // Types
+    TACUTE,         TGRAVE,         THAT,           TBREVE,         // Accents
+    TWIDEVEC,       TWIDEHARPOON,   TWIDETILDE,     TWIDEHAT,       // Wide math
+    TVEC,           THARPOON,       TTILDE,         TCIRCLE,        // math
+    TCHECK,
+    TTEXT,          TNUMBER,        TCHARACTER,     TIDENT,         // Content type
+    // Brackets
+    TLEFT,          TRIGHT,         TUNDERBRACE,    TOVERBRACE,     // Scalable, upsidedown
+    TLGROUP,        TRGROUP,        TLPARENT,       TRPARENT,       // Structural
+    TLBRACKET,      TRBRACKET,      TLDBRACKET,     TRDBRACKET,     // Bracket x1 & x2
+    TLCEIL,         TRCEIL,         TLFLOOR,        TRFLOOR,        // Reals -> Wholes
+    TLANGLE,        TRANGLE,        TLBRACE,        TRBRACE,        // <x> {x}
+    TLLINE,         TRLINE,         TLDLINE,        TRDLINE,        // Lines x1 x2
+    TMLINE,         TEVALUATE,      TLRLINE,        TLRDLINE,       // Custom
+    // Differential calculus
+    TNABLA,         TPARTIAL,       TFOURIER,       TLAPLACE,       // Derivative, Transformation
+    TINTD,          TINT,           TIINT,          TIIINT,         // Integral
+    TLINT,          TLLINT,         TLLLINT,                        // Circuit integral
+    TDOT,           TDDOT,          TDDDOT,                         // Derivative dots
+    // Function
+    TFUNC,          TLN,            TLOG,           TEXP,           // Exp - Log
+    TSIN,           TCOS,           TTAN,           TCOT,           // Trigo
+    TSINH,          TCOSH,          TTANH,          TCOTH,          // Trigo hyperbolic
+    TASIN,          TACOS,          TATAN,          TACOT,          // Arctrigo
+    TASINH,         TACOSH,         TATANH,         TACOTH,         // Arctrigo hyperbolic
+    TSQRT,          TNROOT,         TFACT,          TABS,           // roots, n! |z|
+    // Color
+    TRGB,           TRGBA,          THEX,           THTMLCOL,       TDVIPSNAMESCOL,
+    TICONICCOL,     TMATHMLCOL
+    // clang-format on
+};
+
+struct SmTokenTableEntry
+{
+    OUString aIdent;
+    SmTokenType eType;
+    sal_Unicode cMathChar;
+    TG nGroup;
+    sal_uInt16 nLevel;
+};
+
+struct SmColorTokenTableEntry
+{
+    OUString aIdent;
+    SmTokenType eType;
+    Color cColor;
+
+    SmColorTokenTableEntry()
+        : eType(TERROR)
+        , cColor()
+    {
+    }
+
+    SmColorTokenTableEntry(const SmColorTokenTableEntry* amColorTokenTableEntry)
+        : aIdent(amColorTokenTableEntry->aIdent)
+        , eType(amColorTokenTableEntry->eType)
+        , cColor(amColorTokenTableEntry->cColor)
+    {
+    }
+
+    SmColorTokenTableEntry(const std::unique_ptr<SmColorTokenTableEntry> amColorTokenTableEntry)
+        : aIdent(amColorTokenTableEntry->aIdent)
+        , eType(amColorTokenTableEntry->eType)
+        , cColor(amColorTokenTableEntry->cColor)
+    {
+    }
+
+    SmColorTokenTableEntry(const OUString& name, SmTokenType ctype, Color ncolor)
+        : aIdent(name)
+        , eType(ctype)
+        , cColor(ncolor)
+    {
+    }
+
+    SmColorTokenTableEntry(const OUString& name, SmTokenType ctype, sal_uInt32 ncolor)
+        : aIdent(name)
+        , eType(ctype)
+        , cColor(ColorTransparency, ncolor)
+    {
+    }
+
+    bool equals(std::u16string_view colorname) const
+    {
+        return o3tl::compareToIgnoreAsciiCase(colorname, aIdent) == 0;
+    }
+
+    bool equals(sal_uInt32 colorcode) const { return colorcode == static_cast<sal_uInt32>(cColor); }
+
+    bool equals(Color colorcode) const { return colorcode == cColor; }
+};
+
+struct SmToken
+{
+    OUString aText; // token text
+    SmTokenType eType; // token info
+    OUString cMathChar;
+
+    // parse-help info
+    TG nGroup;
+    sal_uInt16 nLevel;
+
+    SmToken()
+        : eType(TUNKNOWN)
+        , cMathChar('\0')
+        , nGroup(TG::NONE)
+        , nLevel(0)
+    {
+    }
+
+    SmToken(SmTokenType eTokenType, sal_Unicode cMath, const OUString& rText,
+            TG nTokenGroup = TG::NONE, sal_uInt16 nTokenLevel = 0)
+        : aText(rText)
+        , eType(eTokenType)
+        , cMathChar(cMath)
+        , nGroup(nTokenGroup)
+        , nLevel(nTokenLevel)
+    {
+    }
+
+    void operator=(const SmTokenTableEntry& aTokenTableEntry)
+    {
+        aText = aTokenTableEntry.aIdent;
+        eType = aTokenTableEntry.eType;
+        cMathChar = OUString(&aTokenTableEntry.cMathChar, 1);
+        nGroup = aTokenTableEntry.nGroup;
+        nLevel = aTokenTableEntry.nLevel;
+    }
+
+    void operator=(const SmTokenTableEntry* aTokenTableEntry)
+    {
+        aText = aTokenTableEntry->aIdent;
+        eType = aTokenTableEntry->eType;
+        cMathChar = OUString(&aTokenTableEntry->cMathChar, 1);
+        nGroup = aTokenTableEntry->nGroup;
+        nLevel = aTokenTableEntry->nLevel;
+    }
+
+    void operator=(const SmColorTokenTableEntry& aTokenTableEntry)
+    {
+        aText = u"";
+        eType = aTokenTableEntry.eType;
+        cMathChar = OUString::number(static_cast<sal_uInt32>(aTokenTableEntry.cColor), 16);
+        nGroup = TG::Color;
+        nLevel = 0;
+    }
+
+    void operator=(const SmColorTokenTableEntry* aTokenTableEntry)
+    {
+        aText = u"";
+        eType = aTokenTableEntry->eType;
+        cMathChar = OUString::number(static_cast<sal_uInt32>(aTokenTableEntry->cColor), 16);
+        nGroup = TG::Color;
+        nLevel = 0;
+    }
+
+    void operator=(const std::unique_ptr<SmColorTokenTableEntry>& aTokenTableEntry)
+    {
+        aText = u"";
+        eType = aTokenTableEntry->eType;
+        cMathChar = OUString::number(static_cast<sal_uInt32>(aTokenTableEntry->cColor), 16);
+        nGroup = TG::Color;
+        nLevel = 0;
+    }
+
+    void setChar(sal_Unicode cChar) { cMathChar = OUString(&cChar, 1); }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/types.hxx b/starmath/inc/types.hxx
new file mode 100644
index 000000000..39d2f5c6f
--- /dev/null
+++ b/starmath/inc/types.hxx
@@ -0,0 +1,208 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sal/types.h>
+#include <rtl/ustring.hxx>
+
+inline constexpr OUStringLiteral FONTNAME_MATH = u"OpenSymbol";
+
+enum SmPrintSize
+{
+    PRINT_SIZE_NORMAL,
+    PRINT_SIZE_SCALED,
+    PRINT_SIZE_ZOOMED
+};
+
+// definitions for characters from the 'StarSymbol' font
+// (some chars have more than one alias!)
+//! Note: not listed here does not(!) mean "not used"
+//!     (see %alpha ... %gamma for example)
+
+sal_Unicode const MS_NONE = '\0';
+sal_Unicode const MS_NULLCHAR = '\0';
+sal_Unicode const MS_FACT = 0x0021;
+sal_Unicode const MS_INFINITY = 0x221E;
+sal_Unicode const MS_SLASH = 0x002F;
+
+sal_Unicode const MS_NDIVIDES = 0x2224;
+sal_Unicode const MS_DRARROW = 0x21D2;
+sal_Unicode const MS_DLARROW = 0x21D0;
+sal_Unicode const MS_DLRARROW = 0x21D4;
+sal_Unicode const MS_OVERBRACE = 0x23DE;
+sal_Unicode const MS_UNDERBRACE = 0x23DF;
+sal_Unicode const MS_CIRC = 0x2218;
+sal_Unicode const MS_ASSIGN = 0x003D;
+sal_Unicode const MS_ERROR = 0x00BF;
+
+sal_Unicode const MS_NEQ = 0x2260;
+sal_Unicode const MS_PLUS = 0x002B;
+sal_Unicode const MS_MINUS = 0x2212;
+sal_Unicode const MS_MULTIPLY = 0x2217;
+sal_Unicode const MS_TIMES = 0x00D7;
+sal_Unicode const MS_CDOT = 0x22C5;
+sal_Unicode const MS_DIV = 0x00F7;
+sal_Unicode const MS_PLUSMINUS = 0x00B1;
+sal_Unicode const MS_MINUSPLUS = 0x2213;
+sal_Unicode const MS_OPLUS = 0x2295;
+sal_Unicode const MS_OMINUS = 0x2296;
+sal_Unicode const MS_OTIMES = 0x2297;
+sal_Unicode const MS_ODIVIDE = 0x2298;
+sal_Unicode const MS_ODOT = 0x2299;
+sal_Unicode const MS_UNION = 0x222A;
+sal_Unicode const MS_INTERSECT = 0x2229;
+
+sal_Unicode const MS_LT = 0x003C;
+sal_Unicode const MS_GT = 0x003E;
+sal_Unicode const MS_LE = 0x2264;
+sal_Unicode const MS_GE = 0x2265;
+sal_Unicode const MS_LESLANT = 0x2A7D;
+sal_Unicode const MS_GESLANT = 0x2A7E;
+sal_Unicode const MS_LL = 0x226A;
+sal_Unicode const MS_GG = 0x226B;
+sal_Unicode const MS_SIM = 0x223C;
+sal_Unicode const MS_SIMEQ = 0x2243;
+sal_Unicode const MS_APPROX = 0x2248;
+sal_Unicode const MS_DEF = 0x225D;
+sal_Unicode const MS_EQUIV = 0x2261;
+sal_Unicode const MS_PROP = 0x221D;
+sal_Unicode const MS_PARTIAL = 0x2202;
+sal_Unicode const MS_LAPLACE = 0x2112;
+sal_Unicode const MS_FOURIER = 0x2131;
+
+sal_Unicode const MS_SUBSET = 0x2282;
+sal_Unicode const MS_SUPSET = 0x2283;
+sal_Unicode const MS_SUBSETEQ = 0x2286;
+sal_Unicode const MS_SUPSETEQ = 0x2287;
+sal_Unicode const MS_NSUBSET = 0x2284;
+sal_Unicode const MS_NSUPSET = 0x2285;
+sal_Unicode const MS_NSUBSETEQ = 0x2288;
+sal_Unicode const MS_NSUPSETEQ = 0x2289;
+sal_Unicode const MS_IN = 0x2208;
+sal_Unicode const MS_NOTIN = 0x2209;
+sal_Unicode const MS_EXISTS = 0x2203;
+sal_Unicode const MS_NOTEXISTS = 0x2204;
+sal_Unicode const MS_BACKEPSILON = 0x220D;
+sal_Unicode const MS_ALEPH = 0x2135;
+sal_Unicode const MS_IM = 0x2111;
+sal_Unicode const MS_RE = 0x211C;
+sal_Unicode const MS_WP = 0x2118;
+
+sal_Unicode const MS_LINE = 0x2223;
+sal_Unicode const MS_VERTLINE = 0x007C;
+sal_Unicode const MS_DLINE = 0x2225;
+sal_Unicode const MS_DVERTLINE = 0x2016;
+sal_Unicode const MS_ORTHO = 0x22A5;
+sal_Unicode const MS_DOTSLOW = 0x2026;
+sal_Unicode const MS_DOTSAXIS = 0x22EF;
+sal_Unicode const MS_DOTSVERT = 0x22EE;
+sal_Unicode const MS_DOTSUP = 0x22F0;
+sal_Unicode const MS_DOTSDOWN = 0x22F1;
+sal_Unicode const MS_TRANSR = 0x22B6;
+sal_Unicode const MS_TRANSL = 0x22B7;
+sal_Unicode const MS_BACKSLASH = 0x2216;
+sal_Unicode const MS_NEG = 0x00AC;
+
+sal_Unicode const MS_FORALL = 0x2200;
+sal_Unicode const MS_NABLA = 0x2207;
+sal_Unicode const MS_PROD = 0x220F;
+sal_Unicode const MS_COPROD = 0x2210;
+sal_Unicode const MS_SUM = 0x2211;
+sal_Unicode const MS_SQRT = 0x221A;
+sal_Unicode const MS_INT = 0x222B;
+sal_Unicode const MS_IINT = 0x222C;
+sal_Unicode const MS_IIINT = 0x222D;
+sal_Unicode const MS_LINT = 0x222E;
+sal_Unicode const MS_LLINT = 0x222F;
+sal_Unicode const MS_LLLINT = 0x2230;
+
+sal_Unicode const MS_GRAVE = 0x0060;
+sal_Unicode const MS_COMBGRAVE = 0x0300;
+sal_Unicode const MS_ACUTE = 0x00B4;
+sal_Unicode const MS_COMBACUTE = 0x0301;
+sal_Unicode const MS_HAT = 0x005E;
+sal_Unicode const MS_COMBHAT = 0x0302;
+sal_Unicode const MS_TILDE = 0x007E;
+sal_Unicode const MS_COMBTILDE = 0x0303;
+sal_Unicode const MS_BAR = 0x00AF;
+sal_Unicode const MS_COMBBAR = 0x0304;
+sal_Unicode const MS_COMBOVERLINE = 0x0305;
+sal_Unicode const MS_BREVE = 0x02D8;
+sal_Unicode const MS_COMBBREVE = 0x0306;
+sal_Unicode const MS_CIRCLE = 0x02DA;
+sal_Unicode const MS_COMBCIRCLE = 0x030A;
+sal_Unicode const MS_CHECK = 0x02C7;
+sal_Unicode const MS_COMBCHECK = 0x030C;
+sal_Unicode const MS_HARPOON = 0x20D1;
+sal_Unicode const MS_VEC = 0x20D7;
+sal_Unicode const MS_DOT = 0x02D9;
+sal_Unicode const MS_DDOT = 0x00A8;
+sal_Unicode const MS_COMBDOT = 0x0307;
+sal_Unicode const MS_COMBDDOT = 0x0308;
+sal_Unicode const MS_DDDOT = 0x20DB;
+sal_Unicode const MS_AND = 0x2227;
+sal_Unicode const MS_OR = 0x2228;
+sal_Unicode const MS_NI = 0x220B;
+sal_Unicode const MS_EMPTYSET = 0x2205;
+
+sal_Unicode const MS_LPARENT = 0x0028;
+sal_Unicode const MS_RPARENT = 0x0029;
+sal_Unicode const MS_LBRACKET = 0x005B;
+sal_Unicode const MS_RBRACKET = 0x005D;
+sal_Unicode const MS_LBRACE = 0x007B;
+sal_Unicode const MS_RBRACE = 0x007D;
+sal_Unicode const MS_LCEIL = 0x2308;
+sal_Unicode const MS_RCEIL = 0x2309;
+sal_Unicode const MS_LFLOOR = 0x230A;
+sal_Unicode const MS_RFLOOR = 0x230B;
+sal_Unicode const MS_LANGLE = 0x2329;
+sal_Unicode const MS_RANGLE = 0x232A;
+sal_Unicode const MS_LDBRACKET = 0x27E6;
+sal_Unicode const MS_RDBRACKET = 0x27E7;
+sal_Unicode const MS_LMATHANGLE = 0x27E8;
+sal_Unicode const MS_RMATHANGLE = 0x27E9;
+
+sal_Unicode const MS_PLACE = 0x2751;
+
+sal_Unicode const MS_LAMBDABAR = 0x019B;
+sal_Unicode const MS_HBAR = 0x210F;
+sal_Unicode const MS_LEFTARROW = 0x2190;
+sal_Unicode const MS_UPARROW = 0x2191;
+sal_Unicode const MS_RIGHTARROW = 0x2192;
+sal_Unicode const MS_DOWNARROW = 0x2193;
+
+sal_Unicode const MS_SETN = 0x2115;
+sal_Unicode const MS_SETZ = 0x2124;
+sal_Unicode const MS_SETQ = 0x211A;
+sal_Unicode const MS_SETR = 0x211D;
+sal_Unicode const MS_SETC = 0x2102;
+
+sal_Unicode const MS_PERCENT = 0x0025;
+
+sal_Unicode const MS_PRECEDES = 0x227A;
+sal_Unicode const MS_PRECEDESEQUAL = 0x227C;
+sal_Unicode const MS_PRECEDESEQUIV = 0x227E;
+sal_Unicode const MS_SUCCEEDS = 0x227B;
+sal_Unicode const MS_SUCCEEDSEQUAL = 0x227D;
+sal_Unicode const MS_SUCCEEDSEQUIV = 0x227F;
+sal_Unicode const MS_NOTPRECEDES = 0x2280;
+sal_Unicode const MS_NOTSUCCEEDS = 0x2281;
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/unomodel.hxx b/starmath/inc/unomodel.hxx
new file mode 100644
index 000000000..1bb66c4da
--- /dev/null
+++ b/starmath/inc/unomodel.hxx
@@ -0,0 +1,94 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/view/XRenderable.hpp>
+
+#include <sfx2/sfxbasemodel.hxx>
+#include <comphelper/propertysethelper.hxx>
+#include <vcl/print.hxx>
+#include <oox/mathml/export.hxx>
+#include <oox/mathml/import.hxx>
+
+inline constexpr OUStringLiteral PRTUIOPT_TITLE_ROW = u"TitleRow";
+inline constexpr OUStringLiteral PRTUIOPT_FORMULA_TEXT = u"FormulaText";
+inline constexpr OUStringLiteral PRTUIOPT_BORDER = u"Border";
+inline constexpr OUStringLiteral PRTUIOPT_PRINT_FORMAT = u"PrintFormat";
+inline constexpr OUStringLiteral PRTUIOPT_PRINT_SCALE = u"PrintScale";
+
+class SmPrintUIOptions : public vcl::PrinterOptionsHelper
+{
+public:
+    SmPrintUIOptions();
+};
+
+
+class SmModel final : public SfxBaseModel,
+                public comphelper::PropertySetHelper,
+                public css::lang::XServiceInfo,
+                public css::view::XRenderable,
+                public oox::FormulaExportBase,
+                public oox::FormulaImportBase
+{
+    std::unique_ptr<SmPrintUIOptions> m_pPrintUIOptions;
+
+    virtual void _setPropertyValues( const comphelper::PropertyMapEntry** ppEntries, const css::uno::Any* pValues ) override;
+    virtual void _getPropertyValues( const comphelper::PropertyMapEntry** ppEntries, css::uno::Any* pValue ) override;
+public:
+    explicit SmModel( SfxObjectShell *pObjSh );
+    virtual ~SmModel() noexcept override;
+
+    //XInterface
+    virtual     css::uno::Any SAL_CALL queryInterface( const css::uno::Type& aType ) override;
+    virtual void SAL_CALL acquire(  ) noexcept override;
+    virtual void SAL_CALL release(  ) noexcept override;
+
+    //XTypeProvider
+    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+
+    static const css::uno::Sequence< sal_Int8 > & getUnoTunnelId();
+
+    //XUnoTunnel
+    virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& aIdentifier ) override;
+
+    //XRenderable
+    virtual sal_Int32 SAL_CALL getRendererCount( const css::uno::Any& rSelection, const css::uno::Sequence< css::beans::PropertyValue >& rxOptions ) override;
+    virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getRenderer( sal_Int32 nRenderer, const css::uno::Any& rSelection, const css::uno::Sequence< css::beans::PropertyValue >& rxOptions ) override;
+    virtual void SAL_CALL render( sal_Int32 nRenderer, const css::uno::Any& rSelection, const css::uno::Sequence< css::beans::PropertyValue >& rxOptions ) override;
+
+    //XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    virtual void SAL_CALL setParent( const css::uno::Reference< css::uno::XInterface >& xParent ) override;
+
+    // oox::FormulaExportBase
+    virtual void writeFormulaOoxml(::sax_fastparser::FSHelperPtr pSerializer,
+            oox::core::OoxmlVersion version,
+            oox::drawingml::DocumentType documentType, sal_Int8 nAlign) override;
+    virtual void writeFormulaRtf(OStringBuffer& rBuffer, rtl_TextEncoding nEncoding) override;
+    // oox::FormulaImportBase
+    virtual void readFormulaOoxml( oox::formulaimport::XmlStream& stream ) override;
+    virtual Size getFormulaSize() const override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/utility.hxx b/starmath/inc/utility.hxx
new file mode 100644
index 000000000..ee5040170
--- /dev/null
+++ b/starmath/inc/utility.hxx
@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <sal/log.hxx>
+#include <vcl/font.hxx>
+#include <vcl/weld.hxx>
+#include <tools/fract.hxx>
+#include <deque>
+
+inline tools::Long SmPtsTo100th_mm(tools::Long nNumPts)
+    // returns the length (in 100th of mm) that corresponds to the length
+    // 'nNumPts' (in units points).
+    // 72.27 [pt] = 1 [inch] = 2,54 [cm] = 2540 [100th of mm].
+    // result is being rounded to the nearest integer.
+{
+    SAL_WARN_IF( nNumPts < 0, "starmath", "Ooops..." );
+    // broken into multiple and fraction of 'nNumPts' to reduce chance
+    // of overflow
+    // (7227 / 2) is added in order to round to the nearest integer
+    return 35 * nNumPts + (nNumPts * 1055L + (7227 / 2)) / 7227L;
+}
+
+
+inline Fraction Sm100th_mmToPts(tools::Long nNum100th_mm)
+    // returns the length (in points) that corresponds to the length
+    // 'nNum100th_mm' (in 100th of mm).
+{
+    SAL_WARN_IF( nNum100th_mm < 0, "starmath", "Ooops..." );
+    return Fraction(7227L, 254000L) * Fraction(nNum100th_mm);
+}
+
+
+inline tools::Long SmRoundFraction(const Fraction &rFrac)
+{
+    SAL_WARN_IF( rFrac <= Fraction(), "starmath", "Ooops..." );
+    return (rFrac.GetNumerator() + rFrac.GetDenominator() / 2) / rFrac.GetDenominator();
+}
+
+
+class SmViewShell;
+SmViewShell * SmGetActiveView();
+
+
+// SmFace
+
+
+bool    IsItalic( const vcl::Font &rFont );
+bool    IsBold( const vcl::Font &rFont );
+
+class SmFace final : public vcl::Font
+{
+    tools::Long    nBorderWidth;
+
+    void    Impl_Init();
+
+public:
+    SmFace() :
+        Font(), nBorderWidth(-1) { Impl_Init(); }
+    SmFace(const Font& rFont) :
+        Font(rFont), nBorderWidth(-1) { Impl_Init(); }
+    SmFace(const OUString& rName, const Size& rSize) :
+        Font(rName, rSize), nBorderWidth(-1) { Impl_Init(); }
+
+    SmFace(const SmFace &rFace) :
+        Font(rFace), nBorderWidth(-1) { Impl_Init(); }
+
+    // overloaded version in order to supply a min value
+    // for font size (height). (Also used in ctor's to do so.)
+    void    SetSize(const Size& rSize);
+
+    void    SetBorderWidth(tools::Long nWidth)     { nBorderWidth = nWidth; }
+    tools::Long    GetBorderWidth() const;
+    tools::Long    GetDefaultBorderWidth() const   { return GetFontSize().Height() / 20 ; }
+    void    FreezeBorderWidth()     { nBorderWidth = GetDefaultBorderWidth(); }
+
+    SmFace & operator = (const SmFace &rFace);
+};
+
+SmFace & operator *= (SmFace &rFace, const Fraction &rFrac);
+
+
+// SmFontPickList
+
+
+class SmFontDialog;
+
+class SmFontPickList
+{
+protected:
+    sal_uInt16 nMaxItems;
+    std::deque<vcl::Font> aFontVec;
+
+public:
+    explicit SmFontPickList(sal_uInt16 nMax = 5) : nMaxItems(nMax) {}
+    virtual ~SmFontPickList() { Clear(); }
+
+    virtual void    Insert(const vcl::Font &rFont);
+
+    void            Clear();
+    vcl::Font       Get(sal_uInt16 nPos = 0) const;
+
+    SmFontPickList& operator = (const SmFontPickList& rList);
+
+    void            ReadFrom(const SmFontDialog& rDialog);
+    void            WriteTo(SmFontDialog& rDialog) const;
+};
+
+
+//  SmFontPickListBox
+
+
+class SmFontPickListBox final : public SmFontPickList
+{
+private:
+    std::unique_ptr<weld::ComboBox> m_xWidget;
+
+    DECL_LINK(SelectHdl, weld::ComboBox&, void);
+
+public:
+    SmFontPickListBox(std::unique_ptr<weld::ComboBox> pWidget);
+    SmFontPickListBox& operator = (const SmFontPickList& rList);
+    virtual void    Insert(const vcl::Font &rFont) override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/view.hxx b/starmath/inc/view.hxx
new file mode 100644
index 000000000..26b988ffa
--- /dev/null
+++ b/starmath/inc/view.hxx
@@ -0,0 +1,351 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+#include <rtl/ref.hxx>
+#include <sfx2/docinsert.hxx>
+#include <sfx2/dockwin.hxx>
+#include <sfx2/viewsh.hxx>
+#include <sfx2/ctrlitem.hxx>
+#include <sfx2/shell.hxx>
+#include <sfx2/viewfrm.hxx>
+#include <vcl/InterimItemWindow.hxx>
+#include <vcl/timer.hxx>
+#include "document.hxx"
+#include "edit.hxx"
+
+class SmViewShell;
+class SmPrintUIOptions;
+class SmGraphicAccessible;
+class SmGraphicWidget;
+class SmElementsDockingWindow;
+
+class SmGraphicWindow final : public InterimItemWindow
+{
+private:
+    Point aPixOffset; // offset to virtual window (pixel)
+    Size aTotPixSz; // total size of virtual window (pixel)
+    tools::Long nLinePixH; // size of a line/column (pixel)
+    tools::Long nColumnPixW;
+    sal_uInt16 nZoom;
+
+    std::unique_ptr<weld::ScrolledWindow> mxScrolledWindow;
+    std::unique_ptr<SmGraphicWidget> mxGraphic;
+    std::unique_ptr<weld::CustomWeld> mxGraphicWin;
+
+    DECL_LINK(ScrollHdl, weld::ScrolledWindow&, void);
+
+public:
+    explicit SmGraphicWindow(SmViewShell& rShell);
+    virtual void dispose() override;
+    virtual ~SmGraphicWindow() override;
+
+    virtual bool IsStarMath() const override { return true; }
+
+    void SetTotalSize(const Size& rNewSize);
+    Size GetTotalSize() const;
+
+    void SetZoom(sal_uInt16 Factor);
+    sal_uInt16 GetZoom() const { return nZoom; }
+
+    void ZoomToFitInWindow();
+
+    virtual void Resize() override;
+    void ShowContextMenu(const CommandEvent& rCEvt);
+
+    void SetGraphicMapMode(const MapMode& rNewMapMode);
+    MapMode GetGraphicMapMode() const;
+
+    SmGraphicWidget& GetGraphicWidget()
+    {
+        return *mxGraphic;
+    }
+
+    const SmGraphicWidget& GetGraphicWidget() const
+    {
+        return *mxGraphic;
+    }
+};
+
+class SmGraphicWidget final : public weld::CustomWidgetController
+{
+public:
+    bool IsCursorVisible() const
+    {
+        return bIsCursorVisible;
+    }
+    void ShowCursor(bool bShow);
+    bool IsLineVisible() const
+    {
+        return bIsLineVisible;
+    }
+    void ShowLine(bool bShow);
+    const SmNode * SetCursorPos(sal_uInt16 nRow, sal_uInt16 nCol);
+
+    explicit SmGraphicWidget(SmViewShell& rShell, SmGraphicWindow& rGraphicWindow);
+    virtual ~SmGraphicWidget() override;
+
+    // CustomWidgetController
+    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;
+    virtual bool MouseButtonDown(const MouseEvent &rMEvt) override;
+    virtual bool MouseMove(const MouseEvent &rMEvt) override;
+    virtual void GetFocus() override;
+    virtual void LoseFocus() override;
+    virtual bool KeyInput(const KeyEvent& rKEvt) override;
+
+    void SetTotalSize();
+
+    SmViewShell& GetView()
+    {
+        return mrViewShell;
+    }
+
+    const Point& GetFormulaDrawPos() const
+    {
+        return aFormulaDrawPos;
+    }
+
+    // for Accessibility
+    virtual css::uno::Reference<css::accessibility::XAccessible> CreateAccessible() override;
+
+    SmGraphicAccessible* GetAccessible_Impl()
+    {
+        return mxAccessible.get();
+    }
+
+private:
+    void SetIsCursorVisible(bool bVis)
+    {
+        bIsCursorVisible = bVis;
+    }
+    void SetCursor(const SmNode *pNode);
+    void SetCursor(const tools::Rectangle &rRect);
+
+    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) override;
+    virtual bool Command(const CommandEvent& rCEvt) override;
+
+    void RepaintViewShellDoc();
+    DECL_LINK(CaretBlinkTimerHdl, Timer *, void);
+    void CaretBlinkInit();
+    void CaretBlinkStart();
+    void CaretBlinkStop();
+
+    SmGraphicWindow& mrGraphicWindow;
+
+    Point aFormulaDrawPos;
+    // old style editing pieces
+    tools::Rectangle aCursorRect;
+    bool bIsCursorVisible;
+    bool bIsLineVisible;
+    AutoTimer aCaretBlinkTimer;
+    rtl::Reference<SmGraphicAccessible> mxAccessible;
+    SmViewShell& mrViewShell;
+};
+
+class SmGraphicController final : public SfxControllerItem
+{
+    SmGraphicWidget &rGraphic;
+public:
+    SmGraphicController(SmGraphicWidget &, sal_uInt16, SfxBindings & );
+    virtual void StateChangedAtToolBoxControl(sal_uInt16             nSID,
+                              SfxItemState       eState,
+                              const SfxPoolItem* pState) override;
+};
+
+class SmEditController final : public SfxControllerItem
+{
+    SmEditWindow &rEdit;
+
+public:
+    SmEditController(SmEditWindow &, sal_uInt16, SfxBindings  & );
+
+    virtual void StateChangedAtToolBoxControl(sal_uInt16 nSID, SfxItemState eState, const SfxPoolItem* pState) override;
+};
+
+class SmCmdBoxWindow final : public SfxDockingWindow
+{
+    std::unique_ptr<SmEditWindow, o3tl::default_delete<SmEditWindow>> m_xEdit;
+    SmEditController    aController;
+    bool                bExiting;
+
+    Timer               aInitialFocusTimer;
+
+    DECL_LINK(InitialFocusTimerHdl, Timer *, void);
+
+    virtual Size CalcDockingSize(SfxChildAlignment eAlign) override;
+    virtual SfxChildAlignment CheckAlignment(SfxChildAlignment eActual,
+                                             SfxChildAlignment eWish) override;
+
+    virtual void    ToggleFloatingMode() override;
+
+public:
+    SmCmdBoxWindow(SfxBindings    *pBindings,
+                   SfxChildWindow *pChildWindow,
+                   Window         *pParent);
+
+    virtual ~SmCmdBoxWindow () override;
+    virtual void dispose() override;
+
+    // Window
+    virtual void GetFocus() override;
+    virtual void StateChanged( StateChangedType nStateChange ) override;
+    virtual void Command(const CommandEvent& rCEvt) override;
+
+    Point WidgetToWindowPos(const weld::Widget& rWidget, const Point& rPos);
+
+    void ShowContextMenu(const Point& rPos);
+
+    void AdjustPosition();
+
+    SmEditWindow& GetEditWindow()
+    {
+        return *m_xEdit;
+    }
+    SmViewShell* GetView();
+};
+
+class SmCmdBoxWrapper final : public SfxChildWindow
+{
+    SFX_DECL_CHILDWINDOW_WITHID(SmCmdBoxWrapper);
+
+    SmCmdBoxWrapper(vcl::Window* pParentWindow, sal_uInt16 nId, SfxBindings* pBindings, SfxChildWinInfo* pInfo);
+
+public:
+
+    SmEditWindow& GetEditWindow()
+    {
+        return static_cast<SmCmdBoxWindow *>(GetWindow())->GetEditWindow();
+    }
+};
+
+namespace sfx2 { class FileDialogHelper; }
+
+class SmViewShell final : public SfxViewShell
+{
+    std::unique_ptr<sfx2::DocumentInserter> mpDocInserter;
+    std::unique_ptr<SfxRequest> mpRequest;
+    VclPtr<SmGraphicWindow> mxGraphicWindow;
+    SmGraphicController maGraphicController;
+    OUString maStatusText;
+    bool mbPasteState;
+    /** Used to determine whether insertions using SID_INSERTSPECIAL and SID_INSERTCOMMANDTEXT
+     * should be inserted into SmEditWindow or directly into the SmDocShell as done if the
+     * visual editor was last to have focus.
+     */
+    bool mbInsertIntoEditWindow;
+
+    DECL_LINK( DialogClosedHdl, sfx2::FileDialogHelper*, void );
+    virtual void            Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
+
+    static Size GetTextLineSize(OutputDevice const & rDevice,
+                         const OUString& rLine);
+    static Size GetTextSize(OutputDevice const & rDevice,
+                     std::u16string_view rText,
+                     tools::Long          MaxWidth);
+    static void DrawTextLine(OutputDevice& rDevice,
+                      const Point&  rPosition,
+                      const OUString& rLine);
+    static void DrawText(OutputDevice& rDevice,
+                  const Point&  rPosition,
+                  std::u16string_view rText,
+                  sal_uInt16        MaxWidth);
+
+    virtual SfxPrinter *GetPrinter(bool bCreate = false) override;
+    virtual sal_uInt16 SetPrinter(SfxPrinter *pNewPrinter,
+                              SfxPrinterChangeFlags nDiffFlags = SFX_PRINTER_ALL) override;
+
+    void Insert( SfxMedium& rMedium );
+    void InsertFrom(SfxMedium &rMedium);
+
+    virtual bool HasPrintOptionsPage() const override;
+    virtual std::unique_ptr<SfxTabPage> CreatePrintOptionsPage(weld::Container* pPage, weld::DialogController* pController,
+                                                               const SfxItemSet &rOptions) override;
+    virtual void Deactivate(bool IsMDIActivate) override;
+    virtual void Activate(bool IsMDIActivate) override;
+    virtual void InnerResizePixel(const Point &rOfs, const Size  &rSize, bool inplaceEditModeChange) override;
+    virtual void OuterResizePixel(const Point &rOfs, const Size  &rSize) override;
+    virtual void QueryObjAreaPixel( tools::Rectangle& rRect ) const override;
+    virtual void SetZoomFactor( const Fraction &rX, const Fraction &rY ) override;
+
+public:
+
+    SmViewShell(SfxViewFrame *pFrame, SfxViewShell *pOldSh);
+    virtual ~SmViewShell() override;
+
+    SmDocShell * GetDoc()
+    {
+        return static_cast<SmDocShell *>( GetViewFrame()->GetObjectShell() );
+    }
+
+    SmEditWindow * GetEditWindow();
+
+    SmGraphicWidget& GetGraphicWidget()
+    {
+        return mxGraphicWindow->GetGraphicWidget();
+    }
+    const SmGraphicWidget& GetGraphicWidget() const
+    {
+        return mxGraphicWindow->GetGraphicWidget();
+    }
+
+    SmGraphicWindow& GetGraphicWindow()
+    {
+        return *mxGraphicWindow;
+    }
+
+    SmElementsDockingWindow* GetDockingWindow();
+
+    void        SetStatusText(const OUString& rText);
+
+    void        ShowError( const SmErrorDesc *pErrorDesc );
+    void        NextError();
+    void        PrevError();
+
+    SFX_DECL_INTERFACE(SFX_INTERFACE_SMA_START+SfxInterfaceId(2))
+    SFX_DECL_VIEWFACTORY(SmViewShell);
+
+private:
+    /// SfxInterface initializer.
+    static void InitInterface_Impl();
+
+public:
+    void Execute( SfxRequest& rReq );
+    void GetState(SfxItemSet &);
+
+    void Impl_Print( OutputDevice &rOutDev, const SmPrintUIOptions &rPrintUIOptions,
+            tools::Rectangle aOutRect );
+
+    /** Set bInsertIntoEditWindow so we know where to insert
+     *
+     * This method is called whenever SmGraphicWidget or SmEditWindow gets focus,
+     * so that when text is inserted from catalog or elsewhere we know whether to
+     * insert for the visual editor, or the text editor.
+     */
+    void SetInsertIntoEditWindow(bool bEditWindowHadFocusLast){
+        mbInsertIntoEditWindow = bEditWindowHadFocusLast;
+    }
+    static bool IsInlineEditEnabled();
+
+private:
+    void ZoomByItemSet(const SfxItemSet *pSet);
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/inc/visitors.hxx b/starmath/inc/visitors.hxx
new file mode 100644
index 000000000..27c4e374e
--- /dev/null
+++ b/starmath/inc/visitors.hxx
@@ -0,0 +1,486 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/** Visitors are an easy way to automating operations with nodes.
+ *
+ * The available visitors are:
+ * SmVisitor                                base class
+ *      SmDefaultingVisitor                 default visitor
+ *      SmDrawingVisitor                    draws formula
+ *      SmCaretPosGraphBuildingVisitor      position of the node inside starmath code
+ *      SmCloningVisitor                    duplicate nodes
+ *      SmNodeToTextVisitor                 create code from nodes
+ *
+ */
+
+#pragma once
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include "node.hxx"
+#include "caret.hxx"
+
+/** Base class for visitors that visits a tree of SmNodes
+ * @remarks all methods have been left abstract to ensure that implementers
+ * don't forget to implement one.
+ */
+class SmVisitor
+{
+public:
+    virtual void Visit( SmTableNode* pNode ) = 0;
+    virtual void Visit( SmBraceNode* pNode ) = 0;
+    virtual void Visit( SmBracebodyNode* pNode ) = 0;
+    virtual void Visit( SmOperNode* pNode ) = 0;
+    virtual void Visit( SmAlignNode* pNode ) = 0;
+    virtual void Visit( SmAttributeNode* pNode ) = 0;
+    virtual void Visit( SmFontNode* pNode ) = 0;
+    virtual void Visit( SmUnHorNode* pNode ) = 0;
+    virtual void Visit( SmBinHorNode* pNode ) = 0;
+    virtual void Visit( SmBinVerNode* pNode ) = 0;
+    virtual void Visit( SmBinDiagonalNode* pNode ) = 0;
+    virtual void Visit( SmSubSupNode* pNode ) = 0;
+    virtual void Visit( SmMatrixNode* pNode ) = 0;
+    virtual void Visit( SmPlaceNode* pNode ) = 0;
+    virtual void Visit( SmTextNode* pNode ) = 0;
+    virtual void Visit( SmSpecialNode* pNode ) = 0;
+    virtual void Visit( SmGlyphSpecialNode* pNode ) = 0;
+    virtual void Visit( SmMathSymbolNode* pNode ) = 0;
+    virtual void Visit( SmBlankNode* pNode ) = 0;
+    virtual void Visit( SmErrorNode* pNode ) = 0;
+    virtual void Visit( SmLineNode* pNode ) = 0;
+    virtual void Visit( SmExpressionNode* pNode ) = 0;
+    virtual void Visit( SmPolyLineNode* pNode ) = 0;
+    virtual void Visit( SmRootNode* pNode ) = 0;
+    virtual void Visit( SmRootSymbolNode* pNode ) = 0;
+    virtual void Visit( SmRectangleNode* pNode ) = 0;
+    virtual void Visit( SmVerticalBraceNode* pNode ) = 0;
+
+protected:
+    ~SmVisitor() {}
+};
+
+// SmDefaultingVisitor
+
+
+/** Visitor that uses DefaultVisit for handling visits by default
+ *
+ * This abstract baseclass is useful for visitors where many methods share the same
+ * implementation.
+ */
+class SmDefaultingVisitor : public SmVisitor
+{
+public:
+    void Visit( SmTableNode* pNode ) override;
+    void Visit( SmBraceNode* pNode ) override;
+    void Visit( SmBracebodyNode* pNode ) override;
+    void Visit( SmOperNode* pNode ) override;
+    void Visit( SmAlignNode* pNode ) override;
+    void Visit( SmAttributeNode* pNode ) override;
+    void Visit( SmFontNode* pNode ) override;
+    void Visit( SmUnHorNode* pNode ) override;
+    void Visit( SmBinHorNode* pNode ) override;
+    void Visit( SmBinVerNode* pNode ) override;
+    void Visit( SmBinDiagonalNode* pNode ) override;
+    void Visit( SmSubSupNode* pNode ) override;
+    void Visit( SmMatrixNode* pNode ) override;
+    void Visit( SmPlaceNode* pNode ) override;
+    void Visit( SmTextNode* pNode ) override;
+    void Visit( SmSpecialNode* pNode ) override;
+    void Visit( SmGlyphSpecialNode* pNode ) override;
+    void Visit( SmMathSymbolNode* pNode ) override;
+    void Visit( SmBlankNode* pNode ) override;
+    void Visit( SmErrorNode* pNode ) override;
+    void Visit( SmLineNode* pNode ) override;
+    void Visit( SmExpressionNode* pNode ) override;
+    void Visit( SmPolyLineNode* pNode ) override;
+    void Visit( SmRootNode* pNode ) override;
+    void Visit( SmRootSymbolNode* pNode ) override;
+    void Visit( SmRectangleNode* pNode ) override;
+    void Visit( SmVerticalBraceNode* pNode ) override;
+protected:
+    ~SmDefaultingVisitor() {}
+
+    /** Method invoked by Visit methods by default */
+    virtual void DefaultVisit( SmNode* pNode ) = 0;
+};
+
+// SmCaretDrawingVisitor
+
+/** Visitor for drawing a caret position */
+class SmCaretDrawingVisitor final : public SmDefaultingVisitor
+{
+public:
+    /** Given position and device this constructor will draw the caret */
+    SmCaretDrawingVisitor( OutputDevice& rDevice, SmCaretPos position, Point offset, bool caretVisible );
+    virtual ~SmCaretDrawingVisitor() {}
+    void Visit( SmTextNode* pNode ) override;
+    using SmDefaultingVisitor::Visit;
+private:
+    OutputDevice &mrDev;
+    SmCaretPos maPos;
+    /** Offset to draw from */
+    Point  maOffset;
+    bool  mbCaretVisible;
+
+    /** Default method for drawing pNodes */
+    void DefaultVisit( SmNode* pNode ) override;
+};
+
+// SmCaretPos2LineVisitor
+
+/** Visitor getting a line from a caret position */
+class SmCaretPos2LineVisitor final : public SmDefaultingVisitor
+{
+public:
+    /** Given position and device this constructor will compute a line for the caret */
+    SmCaretPos2LineVisitor( OutputDevice *pDevice, SmCaretPos position )
+        : mpDev( pDevice )
+        , maPos( position )
+    {
+        SAL_WARN_IF( !position.IsValid(), "starmath", "Cannot draw invalid position!" );
+
+        maPos.pSelectedNode->Accept( this );
+    }
+    virtual ~SmCaretPos2LineVisitor() {}
+    void Visit( SmTextNode* pNode ) override;
+    using SmDefaultingVisitor::Visit;
+    const SmCaretLine& GetResult( ) const {
+        return maLine;
+    }
+private:
+    SmCaretLine maLine;
+    VclPtr<OutputDevice> mpDev;
+    SmCaretPos maPos;
+
+    /** Default method for computing lines for pNodes */
+    void DefaultVisit( SmNode* pNode ) override;
+};
+
+// SmDrawingVisitor
+
+/** Visitor for drawing SmNodes to OutputDevice */
+class SmDrawingVisitor final : public SmVisitor
+{
+public:
+    /** Create an instance of SmDrawingVisitor, and use it to draw a formula
+     * @param rDevice   Device to draw on
+     * @param position  Offset on device to draw the formula
+     * @param pTree     Formula tree to draw
+     * @remarks This constructor will do the drawing, no need to anything more.
+     */
+    SmDrawingVisitor( OutputDevice &rDevice, Point position, SmNode* pTree )
+        : mrDev( rDevice )
+        , maPosition( position )
+    {
+        pTree->Accept( this );
+    }
+    virtual ~SmDrawingVisitor() {}
+    void Visit( SmTableNode* pNode ) override;
+    void Visit( SmBraceNode* pNode ) override;
+    void Visit( SmBracebodyNode* pNode ) override;
+    void Visit( SmOperNode* pNode ) override;
+    void Visit( SmAlignNode* pNode ) override;
+    void Visit( SmAttributeNode* pNode ) override;
+    void Visit( SmFontNode* pNode ) override;
+    void Visit( SmUnHorNode* pNode ) override;
+    void Visit( SmBinHorNode* pNode ) override;
+    void Visit( SmBinVerNode* pNode ) override;
+    void Visit( SmBinDiagonalNode* pNode ) override;
+    void Visit( SmSubSupNode* pNode ) override;
+    void Visit( SmMatrixNode* pNode ) override;
+    void Visit( SmPlaceNode* pNode ) override;
+    void Visit( SmTextNode* pNode ) override;
+    void Visit( SmSpecialNode* pNode ) override;
+    void Visit( SmGlyphSpecialNode* pNode ) override;
+    void Visit( SmMathSymbolNode* pNode ) override;
+    void Visit( SmBlankNode* pNode ) override;
+    void Visit( SmErrorNode* pNode ) override;
+    void Visit( SmLineNode* pNode ) override;
+    void Visit( SmExpressionNode* pNode ) override;
+    void Visit( SmPolyLineNode* pNode ) override;
+    void Visit( SmRootNode* pNode ) override;
+    void Visit( SmRootSymbolNode* pNode ) override;
+    void Visit( SmRectangleNode* pNode ) override;
+    void Visit( SmVerticalBraceNode* pNode ) override;
+private:
+    /** Draw the children of a pNode
+     * This the default method, use by most pNodes
+     */
+    void DrawChildren( SmStructureNode* pNode );
+
+    /** Draw an SmTextNode or a subclass of this */
+    void DrawTextNode( SmTextNode* pNode );
+    /** Draw an SmSpecialNode or a subclass of this  */
+    void DrawSpecialNode( SmSpecialNode* pNode );
+    /** OutputDevice to draw on */
+    OutputDevice& mrDev;
+    /** Position to draw on the mrDev
+     * @remarks This variable is used to pass parameters in DrawChildren( ), this means
+                that after a call to DrawChildren( ) the contents of this method is undefined
+                so if needed cache it locally on the stack.
+     */
+    Point maPosition;
+};
+
+// SmSetSelectionVisitor
+
+/** Set Selection Visitor
+ * Sets the IsSelected( ) property on all SmNodes of the tree
+ */
+class SmSetSelectionVisitor final : public SmDefaultingVisitor
+{
+public:
+    SmSetSelectionVisitor( SmCaretPos startPos, SmCaretPos endPos, SmNode* pNode);
+    virtual ~SmSetSelectionVisitor() {}
+    void Visit( SmBinHorNode* pNode ) override;
+    void Visit( SmUnHorNode* pNode ) override;
+    void Visit( SmFontNode* pNode ) override;
+    void Visit( SmTextNode* pNode ) override;
+    void Visit( SmExpressionNode* pNode ) override;
+    void Visit( SmLineNode* pNode ) override;
+    void Visit( SmAlignNode* pNode ) override;
+    using SmDefaultingVisitor::Visit;
+    /** Set IsSelected on all pNodes of pSubTree */
+    static void SetSelectedOnAll( SmNode* pSubTree, bool IsSelected = true );
+private:
+    /** Visit a selectable pNode
+     * Can be used to handle pNodes that can be selected, that doesn't have more SmCaretPos'
+     * than 0 and 1 inside them. SmTextNode should be handle separately!
+     * Also note that pNodes such as SmBinVerNode cannot be selected, don't this method for
+     * it.
+     */
+    void DefaultVisit( SmNode* pNode ) override;
+    void VisitCompositionNode( SmStructureNode* pNode );
+    /** Caret position where the selection starts */
+    SmCaretPos maStartPos;
+    /** Caret position where the selection ends */
+    SmCaretPos maEndPos;
+    /** The current state of this visitor
+     * This property changes when the visitor meets either maStartPos
+     * or maEndPos. This means that anything visited in between will be
+     * selected.
+     */
+    bool mbSelecting;
+};
+
+
+// SmCaretPosGraphBuildingVisitor
+
+
+/** A visitor for building a SmCaretPosGraph
+ *
+ * Visit invariant:
+ * Each pNode, except SmExpressionNode, SmBinHorNode and a few others, constitutes an entry
+ * in a line. Consider the line entry "H", this entry creates one carat position, here
+ * denoted by | in "H|".
+ *
+ * Parameter variables:
+ *  The following variables are used to transfer parameters into calls and results out
+ *  of calls.
+ *      pRightMost : SmCaretPosGraphEntry*
+ *
+ * Prior to a Visit call:
+ *  pRightMost: A pointer to right most position in front of the current line entry.
+ *
+ * After a Visit call:
+ *  pRightMost: A pointer to the right most position in the called line entry, if no there's
+ *              no caret positions in called line entry don't change this variable.
+ */
+class SmCaretPosGraphBuildingVisitor final : public SmVisitor
+{
+public:
+    /** Builds a caret position graph for pRootNode */
+    explicit SmCaretPosGraphBuildingVisitor( SmNode* pRootNode );
+    virtual ~SmCaretPosGraphBuildingVisitor();
+    void Visit( SmTableNode* pNode ) override;
+    void Visit( SmBraceNode* pNode ) override;
+    void Visit( SmBracebodyNode* pNode ) override;
+    void Visit( SmOperNode* pNode ) override;
+    void Visit( SmAlignNode* pNode ) override;
+    void Visit( SmAttributeNode* pNode ) override;
+    void Visit( SmFontNode* pNode ) override;
+    void Visit( SmUnHorNode* pNode ) override;
+    void Visit( SmBinHorNode* pNode ) override;
+    void Visit( SmBinVerNode* pNode ) override;
+    void Visit( SmBinDiagonalNode* pNode ) override;
+    void Visit( SmSubSupNode* pNode ) override;
+    void Visit( SmMatrixNode* pNode ) override;
+    void Visit( SmPlaceNode* pNode ) override;
+    void Visit( SmTextNode* pNode ) override;
+    void Visit( SmSpecialNode* pNode ) override;
+    void Visit( SmGlyphSpecialNode* pNode ) override;
+    void Visit( SmMathSymbolNode* pNode ) override;
+    void Visit( SmBlankNode* pNode ) override;
+    void Visit( SmErrorNode* pNode ) override;
+    void Visit( SmLineNode* pNode ) override;
+    void Visit( SmExpressionNode* pNode ) override;
+    void Visit( SmPolyLineNode* pNode ) override;
+    void Visit( SmRootNode* pNode ) override;
+    void Visit( SmRootSymbolNode* pNode ) override;
+    void Visit( SmRectangleNode* pNode ) override;
+    void Visit( SmVerticalBraceNode* pNode ) override;
+    SmCaretPosGraph* takeGraph()
+    {
+        return mpGraph.release();
+    }
+private:
+    SmCaretPosGraphEntry* mpRightMost;
+    std::unique_ptr<SmCaretPosGraph> mpGraph;
+};
+
+// SmCloningVisitor
+
+/** Visitor for cloning a pNode
+ *
+ * This visitor creates deep clones.
+ */
+class SmCloningVisitor final : public SmVisitor
+{
+public:
+    SmCloningVisitor()
+        : mpResult(nullptr)
+    {}
+    virtual ~SmCloningVisitor() {}
+    void Visit( SmTableNode* pNode ) override;
+    void Visit( SmBraceNode* pNode ) override;
+    void Visit( SmBracebodyNode* pNode ) override;
+    void Visit( SmOperNode* pNode ) override;
+    void Visit( SmAlignNode* pNode ) override;
+    void Visit( SmAttributeNode* pNode ) override;
+    void Visit( SmFontNode* pNode ) override;
+    void Visit( SmUnHorNode* pNode ) override;
+    void Visit( SmBinHorNode* pNode ) override;
+    void Visit( SmBinVerNode* pNode ) override;
+    void Visit( SmBinDiagonalNode* pNode ) override;
+    void Visit( SmSubSupNode* pNode ) override;
+    void Visit( SmMatrixNode* pNode ) override;
+    void Visit( SmPlaceNode* pNode ) override;
+    void Visit( SmTextNode* pNode ) override;
+    void Visit( SmSpecialNode* pNode ) override;
+    void Visit( SmGlyphSpecialNode* pNode ) override;
+    void Visit( SmMathSymbolNode* pNode ) override;
+    void Visit( SmBlankNode* pNode ) override;
+    void Visit( SmErrorNode* pNode ) override;
+    void Visit( SmLineNode* pNode ) override;
+    void Visit( SmExpressionNode* pNode ) override;
+    void Visit( SmPolyLineNode* pNode ) override;
+    void Visit( SmRootNode* pNode ) override;
+    void Visit( SmRootSymbolNode* pNode ) override;
+    void Visit( SmRectangleNode* pNode ) override;
+    void Visit( SmVerticalBraceNode* pNode ) override;
+    /** Clone a pNode */
+    SmNode* Clone( SmNode* pNode );
+private:
+    SmNode* mpResult;
+    /** Clone children of pSource and give them to pTarget */
+    void CloneKids( SmStructureNode* pSource, SmStructureNode* pTarget );
+    /** Clone attributes on a pNode */
+    static void CloneNodeAttr( SmNode const * pSource, SmNode* pTarget );
+};
+
+
+// SmSelectionDrawingVisitor
+
+class SmSelectionDrawingVisitor final : public SmDefaultingVisitor
+{
+public:
+    /** Draws a selection on rDevice for the selection on pTree */
+    SmSelectionDrawingVisitor( OutputDevice& rDevice, SmNode* pTree, const Point& rOffset );
+    virtual ~SmSelectionDrawingVisitor() {}
+    void Visit( SmTextNode* pNode ) override;
+    using SmDefaultingVisitor::Visit;
+private:
+    /** Reference to drawing device */
+    OutputDevice& mrDev;
+    /** True if  aSelectionArea have been initialized */
+    bool mbHasSelectionArea;
+    /** The current area that is selected */
+    tools::Rectangle maSelectionArea;
+    /** Extend the area that must be selected  */
+    void ExtendSelectionArea(const tools::Rectangle& rArea);
+    /** Default visiting method */
+    void DefaultVisit( SmNode* pNode ) override;
+    /** Visit the children of a given pNode */
+    void VisitChildren( SmNode* pNode );
+};
+
+// SmNodeToTextVisitor
+
+/** Extract command text from pNodes */
+class SmNodeToTextVisitor final : public SmVisitor
+{
+public:
+    SmNodeToTextVisitor( SmNode* pNode, OUString &rText );
+    virtual ~SmNodeToTextVisitor() {}
+
+    void Visit( SmTableNode* pNode ) override;
+    void Visit( SmBraceNode* pNode ) override;
+    void Visit( SmBracebodyNode* pNode ) override;
+    void Visit( SmOperNode* pNode ) override;
+    void Visit( SmAlignNode* pNode ) override;
+    void Visit( SmAttributeNode* pNode ) override;
+    void Visit( SmFontNode* pNode ) override;
+    void Visit( SmUnHorNode* pNode ) override;
+    void Visit( SmBinHorNode* pNode ) override;
+    void Visit( SmBinVerNode* pNode ) override;
+    void Visit( SmBinDiagonalNode* pNode ) override;
+    void Visit( SmSubSupNode* pNode ) override;
+    void Visit( SmMatrixNode* pNode ) override;
+    void Visit( SmPlaceNode* pNode ) override;
+    void Visit( SmTextNode* pNode ) override;
+    void Visit( SmSpecialNode* pNode ) override;
+    void Visit( SmGlyphSpecialNode* pNode ) override;
+    void Visit( SmMathSymbolNode* pNode ) override;
+    void Visit( SmBlankNode* pNode ) override;
+    void Visit( SmErrorNode* pNode ) override;
+    void Visit( SmLineNode* pNode ) override;
+    void Visit( SmExpressionNode* pNode ) override;
+    void Visit( SmPolyLineNode* pNode ) override;
+    void Visit( SmRootNode* pNode ) override;
+    void Visit( SmRootSymbolNode* pNode ) override;
+    void Visit( SmRectangleNode* pNode ) override;
+    void Visit( SmVerticalBraceNode* pNode ) override;
+private:
+
+    /**
+      * Extract text from a pNode that constitutes a line.
+      * @param pNode
+      * @return
+      */
+    void LineToText( SmNode* pNode ) {
+        Separate( );
+        if( pNode ) pNode->Accept( this );
+        Separate( );
+    }
+
+    /**
+      * Appends rText to the OUStringBuffer ( maCmdText ).
+      * @param rText
+      * @return
+      */
+    void Append( std::u16string_view rText ) {
+        maCmdText.append( rText );
+    }
+
+    /**
+     * Append a blank for separation, if needed.
+     * It is needed if last char is not ' '.
+     * @return
+     */
+    void Separate( ){
+        if( !maCmdText.isEmpty() && maCmdText[ maCmdText.getLength() - 1 ] != ' ' )
+            maCmdText.append(' ');
+    }
+
+    /** Output text generated from the pNodes */
+    OUStringBuffer maCmdText;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */