AcceptEnd

StructuredDocumentTag.AcceptEnd method

Accepts a visitor for visiting the end of the StructuredDocumentTag.

public override VisitorAction AcceptEnd(DocumentVisitor visitor)
ParameterTypeDescription
visitorDocumentVisitorThe document visitor.

Return Value

The action to be taken by the visitor.

Examples

Shows how to print the node structure of every structured document tag in a document.

public void StructuredDocumentTagToText()
{
    Document doc = new Document(MyDir + "DocumentVisitor-compatible features.docx");
    StructuredDocumentTagNodePrinter visitor = new StructuredDocumentTagNodePrinter();

    // When we get a composite node to accept a document visitor, the visitor visits the accepting node,
    // and then traverses all the node's children in a depth-first manner.
    // The visitor can read and modify each visited node.
    doc.Accept(visitor);

    Console.WriteLine(visitor.GetText());
}

/// <summary>
/// Traverses a node's non-binary tree of child nodes.
/// Creates a map in the form of a string of all encountered StructuredDocumentTag nodes and their children.
/// </summary>
public class StructuredDocumentTagNodePrinter : DocumentVisitor
{
    public StructuredDocumentTagNodePrinter()
    {
        mBuilder = new StringBuilder();
        mVisitorIsInsideStructuredDocumentTag = false;
    }

    /// <summary>
    /// Gets the plain text of the document that was accumulated by the visitor.
    /// </summary>
    public string GetText()
    {
        return mBuilder.ToString();
    }

    /// <summary>
    /// Called when a Run node is encountered in the document.
    /// </summary>
    public override VisitorAction VisitRun(Run run)
    {
        if (mVisitorIsInsideStructuredDocumentTag) IndentAndAppendLine("[Run] \"" + run.GetText() + "\"");

        return VisitorAction.Continue;
    }

    /// <summary>
    /// Called when a StructuredDocumentTag node is encountered in the document.
    /// </summary>
    public override VisitorAction VisitStructuredDocumentTagStart(StructuredDocumentTag sdt)
    {
        IndentAndAppendLine("[StructuredDocumentTag start] Title: " + sdt.Title);
        mDocTraversalDepth++;

        return VisitorAction.Continue;
    }

    /// <summary>
    /// Called after all the child nodes of a StructuredDocumentTag node have been visited.
    /// </summary>
    public override VisitorAction VisitStructuredDocumentTagEnd(StructuredDocumentTag sdt)
    {
        mDocTraversalDepth--;
        IndentAndAppendLine("[StructuredDocumentTag end]");

        return VisitorAction.Continue;
    }

    /// <summary>
    /// Append a line to the StringBuilder and indent it depending on how deep the visitor is into the document tree.
    /// </summary>
    /// <param name="text"></param>
    private void IndentAndAppendLine(string text)
    {
        for (int i = 0; i < mDocTraversalDepth; i++) mBuilder.Append("|  ");

        mBuilder.AppendLine(text);
    }

    private readonly bool mVisitorIsInsideStructuredDocumentTag;
    private int mDocTraversalDepth;
    private readonly StringBuilder mBuilder;
}

See Also

StructuredDocumentTag.Accept StructuredDocumentTag.AcceptStart