LeadingSpacesOptions

TxtLoadOptions.LeadingSpacesOptions property

Gets or sets preferred option of a leading space handling. Default value is ConvertToIndent.

public TxtLeadingSpacesOptions LeadingSpacesOptions { get; set; }

Examples

Shows how to trim whitespace when loading plaintext documents.

string textDoc = "      Line 1 \n" +
                 "    Line 2   \n" +
                 " Line 3       ";

// Create a "TxtLoadOptions" object, which we can pass to a document's constructor
// to modify how we load a plaintext document.
TxtLoadOptions loadOptions = new TxtLoadOptions();

// Set the "LeadingSpacesOptions" property to "TxtLeadingSpacesOptions.Preserve"
// to preserve all whitespace characters at the start of every line.
// Set the "LeadingSpacesOptions" property to "TxtLeadingSpacesOptions.ConvertToIndent"
// to remove all whitespace characters from the start of every line,
// and then apply a left first line indent to the paragraph to simulate the effect of the whitespaces.
// Set the "LeadingSpacesOptions" property to "TxtLeadingSpacesOptions.Trim"
// to remove all whitespace characters from every line's start.
loadOptions.LeadingSpacesOptions = txtLeadingSpacesOptions;

// Set the "TrailingSpacesOptions" property to "TxtTrailingSpacesOptions.Preserve"
// to preserve all whitespace characters at the end of every line. 
// Set the "TrailingSpacesOptions" property to "TxtTrailingSpacesOptions.Trim" to 
// remove all whitespace characters from the end of every line.
loadOptions.TrailingSpacesOptions = txtTrailingSpacesOptions;

Document doc = new Document(new MemoryStream(Encoding.UTF8.GetBytes(textDoc)), loadOptions);
ParagraphCollection paragraphs = doc.FirstSection.Body.Paragraphs;

switch (txtLeadingSpacesOptions)
{
    case TxtLeadingSpacesOptions.ConvertToIndent:
        Assert.AreEqual(37.8d, paragraphs[0].ParagraphFormat.FirstLineIndent);
        Assert.AreEqual(25.2d, paragraphs[1].ParagraphFormat.FirstLineIndent);
        Assert.AreEqual(6.3d, paragraphs[2].ParagraphFormat.FirstLineIndent);

        Assert.True(paragraphs[0].GetText().StartsWith("Line 1"));
        Assert.True(paragraphs[1].GetText().StartsWith("Line 2"));
        Assert.True(paragraphs[2].GetText().StartsWith("Line 3"));
        break;
    case TxtLeadingSpacesOptions.Preserve:
        Assert.True(paragraphs.All(p => ((Paragraph)p).ParagraphFormat.FirstLineIndent == 0.0d));

        Assert.True(paragraphs[0].GetText().StartsWith("      Line 1"));
        Assert.True(paragraphs[1].GetText().StartsWith("    Line 2"));
        Assert.True(paragraphs[2].GetText().StartsWith(" Line 3"));
        break;
    case TxtLeadingSpacesOptions.Trim:
        Assert.True(paragraphs.All(p => ((Paragraph)p).ParagraphFormat.FirstLineIndent == 0.0d));

        Assert.True(paragraphs[0].GetText().StartsWith("Line 1"));
        Assert.True(paragraphs[1].GetText().StartsWith("Line 2"));
        Assert.True(paragraphs[2].GetText().StartsWith("Line 3"));
        break;
}

switch (txtTrailingSpacesOptions)
{
    case TxtTrailingSpacesOptions.Preserve:
        Assert.True(paragraphs[0].GetText().EndsWith("Line 1 \r"));
        Assert.True(paragraphs[1].GetText().EndsWith("Line 2   \r"));
        Assert.True(paragraphs[2].GetText().EndsWith("Line 3       \f"));
        break;
    case TxtTrailingSpacesOptions.Trim:
        Assert.True(paragraphs[0].GetText().EndsWith("Line 1\r"));
        Assert.True(paragraphs[1].GetText().EndsWith("Line 2\r"));
        Assert.True(paragraphs[2].GetText().EndsWith("Line 3\f"));
        break;
}

See Also

TxtLoadOptions.DocumentDirection TxtLoadOptions.TrailingSpacesOptions