private void PrettyPrintStream()
{
try
{
m_Stream.Seek(0, SeekOrigin.Begin);
m_MemoryStream?.Dispose();
m_MemoryStream = new MemoryStream();
var encoding = Encoding.GetEncoding(m_CodePage);
using (var textReader = new StreamReader((Stream)m_Stream, encoding, true, 4096, true))
using (var stringWriter = new StreamWriter(m_MemoryStream, encoding, 4096, true))
{
var jsonReader = new JsonTextReader(textReader);
var jsonWriter = new JsonTextWriter(stringWriter)
{
Formatting = Formatting.Indented
};
jsonWriter.WriteToken(jsonReader);
}
m_MemoryStream.Seek(0, SeekOrigin.Begin);
textBox.OpenBindingStream(m_MemoryStream, encoding);
HighlightVisibleRange();
prettyPrintJsonToolStripMenuItem.Checked = true;
originalFileToolStripMenuItem.Checked = false;
}
catch (Exception ex)
{
this.ShowError(ex, "Pretty Print");
}
}
/// <summary>
/// Resets the position and buffer to the first line, excluding headers, use
/// ResetPositionToStart if you want to go to first data line
/// </summary>
private void ResetPositionToStartOrOpen()
{
if (SelfOpenedStream)
{
m_ImprovedStream?.Dispose();
m_ImprovedStream = FunctionalDI.OpenStream(new SourceAccess(FullPath));
}
else
{
m_ImprovedStream.Seek(0, SeekOrigin.Begin);
}
// in case we can not seek need to reopen the stream reader
m_StreamReader?.Close();
m_StreamReader = new StreamReader(m_ImprovedStream as Stream ?? throw new InvalidOperationException(), Encoding.UTF8, true, 4096, true);
// End Line should be at 1, later on as the line is read the start line s set to this value
StartLineNumber = 1;
EndLineNumber = 1;
RecordNumber = 0;
EndOfFile = m_StreamReader.EndOfStream;
m_JsonTextReader?.Close();
m_JsonTextReader = new JsonTextReader(m_StreamReader)
{
SupportMultipleContent = true
};
}
/// <summary>
/// Creates an instance of the TextReader
/// </summary>
/// <param name="improvedStream">An Improved Stream</param>
/// <param name="codePageId">The assumed code page id</param>
/// <param name="skipLines">
/// Number of lines that should be skipped at the beginning of the file
/// </param>
/// <remarks>
/// This routine uses a TextReader to allow character decoding, it will always read they the
/// first few bytes of the source stream to look at a possible existing BOM if found, it will
/// overwrite the provided data
/// </remarks>
public ImprovedTextReader([NotNull] IImprovedStream improvedStream, int codePageId = 65001, int skipLines = 0)
{
m_SkipLines = skipLines;
m_ImprovedStream = improvedStream as Stream ?? throw new ArgumentNullException(nameof(improvedStream));
// read the BOM in any case
var buff = new byte[4];
m_ImprovedStream.Read(buff, 0, buff.Length);
var intCodePageByBom = EncodingHelper.GetEncodingByByteOrderMark(buff);
improvedStream.Seek(0, SeekOrigin.Begin);
var byteOrderMark = false;
if (intCodePageByBom != null)
{
byteOrderMark = true;
m_CodePage = intCodePageByBom.CodePage;
}
else
{
try
{
m_CodePage = codePageId;
}
catch (Exception)
{
Logger.Warning("Codepage {0} not supported, using UTF8", codePageId);
m_CodePage = Encoding.UTF8.CodePage;
}
}
m_BomLength = byteOrderMark ? EncodingHelper.BOMLength(m_CodePage) : 0;
ToBeginning();
}
