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);
}
}
protected PDFStream ApplyFilters()
{
PDFStream data = this;
if (Options != null)
{
PDFInteger length;
if (Options.TryGet("Length", out length))
{
data = new PDFStream {
Data = new byte[length.Value], Options = Options
};
Array.Copy(Data, data.Data, data.Data.Length);
PDFList filters;
PDFName filter;
if (Options.TryGet("Filter", out filter))
{
filters = new PDFList {
filter
};
}
else
{
Options.TryGet("Filter", out filters);
}
if (filters != null)
{
PDFDictionary decodeparams;
PDFList decodeparamslist;
if (Options.TryGet("DecodeParams", out decodeparams))
{
decodeparamslist = new PDFList {
decodeparams
};
}
else
{
Options.TryGet("DecodeParams", out decodeparamslist);
if (decodeparamslist == null)
{
decodeparamslist = new PDFList();
}
}
for (int i = 0; i < filters.Count; i++)
{
string filtername = filters.Get <PDFName>(i).Name;
PDFDictionary filterparams;
decodeparamslist.TryGet <PDFDictionary>(i, out filterparams);
data = data.ApplyFilter(filtername, filterparams);
}
}
}
}
return(data);
}