public IPDFToken Parse(Stack <IPDFToken> stack)
{
switch (TokenType)
{
case PDFTokenType.EndDictionary:
return(PDFDictionary.Parse(stack));
case PDFTokenType.EndList:
return(PDFList.Parse(stack));
case PDFTokenType.EOF:
return(PDFTrailer.Parse(stack));
default:
return(this);
}
}
public static PDFTrailer Parse(Stack <IPDFToken> tokens)
{
PDFTrailer trailer = new PDFTrailer();
trailer.TrailerOffset = (long)tokens.Pop <PDFInteger>().Value;
tokens.Pop(PDFTokenType.StartXref);
if (tokens.Has(PDFTokenType.Dictionary))
{
trailer.TrailerDictionary = tokens.Pop <PDFDictionary>();
trailer.Xref = tokens.Pop <PDFXref>();
}
else if (tokens.Has(PDFTokenType.Object))
{
trailer.TrailerDictionary = tokens.Pop <PDFObject>();
}
else
{
throw new InvalidDataException();
}
return(trailer);
}