public static PDFFileIndirectObject Parse(PDFTextSearcher searcher, int number, int gen)
{
string start = number.ToString() + " " + gen.ToString() + " obj";
string end = "endobj";
string endstream = "endstream";
string stream = "stream";
string matchstart = searcher.GetInnerText(start.Length);
if (matchstart != start)
{
throw new PDFNativeParserException(string.Format(CommonErrors.IndirectObjectCannotBeParsed, start));
}
long startPos = searcher.Position;
PDFFileRange endobjPos = searcher.MatchForwardString(end);
if (endobjPos.Found == false)
{
throw new PDFNativeParserException(string.Format(CommonErrors.IndirectObjectCannotBeParsed, start));
}
PDFFileRange endstreamPos = searcher.MatchBackwardString(endstream, startPos);
PDFFileRange startstreamPos;
if (endstreamPos.Found)
{
startstreamPos = searcher.MatchBackwardString(stream, startPos);
if (startstreamPos.Found == false)
{
throw new PDFNativeParserException(string.Format(CommonErrors.IndirectObjectCannotBeParsed, start));
}
endobjPos = startstreamPos;
}
else
{
startstreamPos = PDFFileRange.NotFound;
}
int length = (int)(endobjPos.StartOffset - startPos);
string data = searcher.GetInnerText(startPos, length);
PDFFileIndirectObject parsed = new PDFFileIndirectObject(number, gen, data);
parsed._offset = startPos;
if (startstreamPos.Found)
{
parsed.SetStreamData(searcher.GetInnerBytes(startstreamPos, endstreamPos));
}
parsed.EnsureDataParsed();
return(parsed);
}
//
// .ctor
//
#region private PDFReader14(System.IO.Stream stream, bool ownStream)
/// <summary>
/// Constructs an new PDFReader14
/// </summary>
/// <param name="stream"></param>
/// <param name="ownStream"></param>
internal PDFReader14(System.IO.Stream stream, bool ownStream, PDFTraceLog log)
{
this._innerStream = stream;
this._ownsstream = ownStream;
if (stream.CanSeek == false)
{
throw new ArgumentException("Cannot read a PDF File from a non-seekable stream");
}
this._searcher = new PDFTextSearcher(stream);
}
