Aspose::Words::SpecialChar class

SpecialChar class

Base class for special characters in the document. To learn more, visit the Aspose.Words Document Object Model (DOM) documentation article.

class SpecialChar : public Aspose::Words::Inline

Methods

Method	Description
Accept(System::SharedPtr<Aspose::Words::DocumentVisitor>) override	Accepts a visitor.
Clone(bool)	Creates a duplicate of the node.
get_CustomNodeId() const	Specifies custom node identifier.
virtual get_Document() const	Gets the document to which this node belongs.
get_Font()	Provides access to the font formatting of this object.
virtual get_IsComposite()	Returns true if this node can contain other nodes.
get_IsDeleteRevision()	Returns true if this object was deleted in Microsoft Word while change tracking was enabled.
get_IsFormatRevision()	Returns true if formatting of the object was changed in Microsoft Word while change tracking was enabled.
get_IsInsertRevision()	Returns true if this object was inserted in Microsoft Word while change tracking was enabled.
get_IsMoveFromRevision()	Returns true if this object was moved (deleted) in Microsoft Word while change tracking was enabled.
get_IsMoveToRevision()	Returns true if this object was moved (inserted) in Microsoft Word while change tracking was enabled.
get_NextNode() const
get_NextSibling()	Gets the node immediately following this node.
get_NodeType() const override	Returns SpecialChar.
get_ParentNode()	Gets the immediate parent of this node.
get_ParentParagraph()	Retrieves the parent Paragraph of this node.
get_PreviousSibling()	Gets the node immediately preceding this node.
get_PrevNode() const
get_Range()	Returns a Range object that represents the portion of a document that is contained in this node.
GetAncestor(Aspose::Words::NodeType)	Gets the first ancestor of the specified NodeType.
GetAncestorOf()
GetText() override	Gets the special character that this node represents.
GetType() const override
Is(const System::TypeInfo&) const override
IsAncestorNode(const System::SharedPtr<Aspose::Words::Node>&)
NextPreOrder(const System::SharedPtr<Aspose::Words::Node>&)	Gets next node according to the pre-order tree traversal algorithm.
static NodeTypeToString(Aspose::Words::NodeType)	A utility method that converts a node type enum value into a user friendly string.
PreviousPreOrder(const System::SharedPtr<Aspose::Words::Node>&)	Gets the previous node according to the pre-order tree traversal algorithm.
Remove()	Removes itself from the parent.
set_CustomNodeId(int32_t)	Setter for Aspose::Words::Node::get_CustomNodeId.
set_NextNode(const System::SharedPtr<Aspose::Words::Node>&)
set_PrevNode(const System::SharedPtr<Aspose::Words::Node>&)
SetParent(const System::SharedPtr<Aspose::Words::Node>&)
ToString(Aspose::Words::SaveFormat)	Exports the content of the node into a string in the specified format.
ToString(const System::SharedPtr<Aspose::Words::Saving::SaveOptions>&)	Exports the content of the node into a string using the specified save options.
static Type()

Remarks

A Microsoft Word document can include a number of special characters that represent fields, form fields, shapes, OLE objects, footnotes etc. For the list of special characters see ControlChar.

SpecialChar is an inline-node and can only be a child of Paragraph.

SpecialChar char is used as a base class for more specific classes that represent special characters that Aspose.Words provides programmatic access for. The SpecialChar class is also used itself to represent special character for which Aspose.Words does not provide detailed programmatic access.

Examples

Shows how to use a DocumentVisitor implementation to remove all hidden content from a document.

void RemoveHiddenContentFromDocument()
{
    auto doc = MakeObject<Document>(MyDir + u"Hidden content.docx");

    auto hiddenContentRemover = MakeObject<ExFont::RemoveHiddenContentVisitor>();

    // Below are three types of fields which can accept a document visitor,
    // which will allow it to visit the accepting node, and then traverse its child nodes in a depth-first manner.
    // 1 -  Paragraph node:
    auto para = System::ExplicitCast<Paragraph>(doc->GetChild(NodeType::Paragraph, 4, true));
    para->Accept(hiddenContentRemover);

    // 2 -  Table node:
    SharedPtr<Table> table = doc->get_FirstSection()->get_Body()->get_Tables()->idx_get(0);
    table->Accept(hiddenContentRemover);

    // 3 -  Document node:
    doc->Accept(hiddenContentRemover);

    doc->Save(ArtifactsDir + u"Font.RemoveHiddenContentFromDocument.docx");
}

class RemoveHiddenContentVisitor : public DocumentVisitor
{
public:
    VisitorAction VisitFieldStart(SharedPtr<FieldStart> fieldStart) override
    {
        if (fieldStart->get_Font()->get_Hidden())
        {
            fieldStart->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitFieldEnd(SharedPtr<FieldEnd> fieldEnd) override
    {
        if (fieldEnd->get_Font()->get_Hidden())
        {
            fieldEnd->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitFieldSeparator(SharedPtr<FieldSeparator> fieldSeparator) override
    {
        if (fieldSeparator->get_Font()->get_Hidden())
        {
            fieldSeparator->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitRun(SharedPtr<Run> run) override
    {
        if (run->get_Font()->get_Hidden())
        {
            run->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitParagraphStart(SharedPtr<Paragraph> paragraph) override
    {
        if (paragraph->get_ParagraphBreakFont()->get_Hidden())
        {
            paragraph->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitFormField(SharedPtr<FormField> formField) override
    {
        if (formField->get_Font()->get_Hidden())
        {
            formField->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitGroupShapeStart(SharedPtr<GroupShape> groupShape) override
    {
        if (groupShape->get_Font()->get_Hidden())
        {
            groupShape->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitShapeStart(SharedPtr<Shape> shape) override
    {
        if (shape->get_Font()->get_Hidden())
        {
            shape->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitCommentStart(SharedPtr<Comment> comment) override
    {
        if (comment->get_Font()->get_Hidden())
        {
            comment->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitFootnoteStart(SharedPtr<Footnote> footnote) override
    {
        if (footnote->get_Font()->get_Hidden())
        {
            footnote->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitSpecialChar(SharedPtr<SpecialChar> specialChar) override
    {
        if (specialChar->get_Font()->get_Hidden())
        {
            specialChar->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitTableEnd(SharedPtr<Table> table) override
    {
        // The content inside table cells may have the hidden content flag, but the tables themselves cannot.
        // If this table had nothing but hidden content, this visitor would have removed all of it,
        // and there would be no child nodes left.
        // Thus, we can also treat the table itself as hidden content and remove it.
        // Tables which are empty but do not have hidden content will have cells with empty paragraphs inside,
        // which this visitor will not remove.
        if (!table->get_HasChildNodes())
        {
            table->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitCellEnd(SharedPtr<Cell> cell) override
    {
        if (!cell->get_HasChildNodes() && cell->get_ParentNode() != nullptr)
        {
            cell->Remove();
        }

        return VisitorAction::Continue;
    }

    VisitorAction VisitRowEnd(SharedPtr<Row> row) override
    {
        if (!row->get_HasChildNodes() && row->get_ParentNode() != nullptr)
        {
            row->Remove();
        }

        return VisitorAction::Continue;
    }
};

See Also

• Class Inline
• Namespace Aspose::Words
• Library Aspose.Words for C++