AddBidiMarks

TxtSaveOptions.AddBidiMarks property

Specifies whether to add bi-directional marks before each BiDi run when exporting in plain text format.

The default value is false.

public bool AddBidiMarks { get; set; }

Examples

Shows how to insert Unicode Character ‘RIGHT-TO-LEFT MARK’ (U+200F) before each bi-directional Run in text.

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

builder.Writeln("Hello world!");
builder.ParagraphFormat.Bidi = true;
builder.Writeln("שלום עולם!");
builder.Writeln("مرحبا بالعالم!");

// Create a "TxtSaveOptions" object, which we can pass to the document's "Save" method
// to modify how we save the document to plaintext.
TxtSaveOptions saveOptions = new TxtSaveOptions { Encoding = System.Text.Encoding.Unicode};

// Set the "AddBidiMarks" property to "true" to add marks before runs
// with right-to-left text to indicate the fact.
// Set the "AddBidiMarks" property to "false" to write all left-to-right
// and right-to-left run equally with nothing to indicate which is which.
saveOptions.AddBidiMarks = addBidiMarks;

doc.Save(ArtifactsDir + "TxtSaveOptions.AddBidiMarks.txt", saveOptions);

string docText = System.Text.Encoding.Unicode.GetString(File.ReadAllBytes(ArtifactsDir + "TxtSaveOptions.AddBidiMarks.txt"));

if (addBidiMarks)
{
    Assert.AreEqual("\uFEFFHello world!‎\r\nשלום עולם!‏\r\nمرحبا بالعالم!‏\r\n\r\n", docText);
    Assert.True(docText.Contains("\u200f"));
}
else
{
    Assert.AreEqual("\uFEFFHello world!\r\nשלום עולם!\r\nمرحبا بالعالم!\r\n\r\n", docText);
    Assert.False(docText.Contains("\u200f"));
}

See Also

TxtSaveOptions TxtSaveOptions.ListIndentation