public void ValidateCaretPos()
{
line = Math.Max(0, Math.Min(textArea.Document.TotalNumberOfLines - 1, line));
column = Math.Max(0, column);
if (column == int.MaxValue || !textArea.TextEditorProperties.AllowCaretBeyondEOL) {
LineSegment lineSegment = textArea.Document.GetLineSegment(line);
column = Math.Min(column, lineSegment.Length);
}
}