public static PdfStream Parse(PdfDictionary dictionary, Lexical.ILexer lexer)
{
lexer.Expects("stream");
char eol = lexer.ReadChar();
if (eol == '\r')
eol = lexer.ReadChar();
if (eol != '\n')
throw new Exception(@"Parser error: stream needs to be followed by either \r\n or \n alone");
if (dictionary == null)
throw new Exception("Parser error: stream needs a dictionary");
IPdfObject lengthObject = dictionary["Length"];
if (lengthObject == null)
throw new Exception("Parser error: stream dictionary requires a Length entry");
int length = 0;
if (lengthObject is PdfIndirectReference)
{
PdfIndirectReference reference = lengthObject as PdfIndirectReference;
PdfIndirectObject lenobj = lexer.IndirectReferenceResolver
.GetObject(reference.ObjectNumber, reference.GenerationNumber);
PdfNumeric len = lenobj.Object as PdfNumeric;
length = int.Parse(len.ToString());
}
else
{
length = int.Parse(lengthObject.ToString());
}
PdfData data = PdfData.Parse(lexer, length);
lexer.Expects("endstream");
return new PdfStream(dictionary, data);
}
