public static void FlattenNameTree <TResult>(DictionaryToken nameTreeNodeDictionary,
IPdfTokenScanner pdfScanner,
bool isLenientParsing,
Func <IToken, TResult> valuesFactory,
Dictionary <string, TResult> result) where TResult : class
{
if (nameTreeNodeDictionary.TryGet(NameToken.Names, pdfScanner, out ArrayToken nodeNames))
{
for (var i = 0; i < nodeNames.Length; i += 2)
{
if (!(nodeNames[i] is IDataToken <string> key))
{
continue;
}
var valueToken = nodeNames[i + 1];
var value = valuesFactory(valueToken);
if (value != null)
{
result[key.Data] = value;
}
}
}
if (nameTreeNodeDictionary.TryGet(NameToken.Kids, pdfScanner, out ArrayToken kids))
{
foreach (var kid in kids.Data)
{
if (DirectObjectFinder.TryGet(kid, pdfScanner, out DictionaryToken kidDictionary))
{
FlattenNameTree(kidDictionary, pdfScanner, isLenientParsing, valuesFactory, result);
}
else if (!isLenientParsing)
{
throw new PdfDocumentFormatException($"Invalid kids entry in PDF name tree: {kid} in {kids}.");
}
}
}
}
public static void FlattenNameTree <TResult>(DictionaryToken nameTreeNodeDictionary,
IPdfTokenScanner pdfScanner,
Func <IToken, TResult> valuesFactory,
Dictionary <string, TResult> result) where TResult : class
{
if (nameTreeNodeDictionary.TryGet(NameToken.Names, pdfScanner, out ArrayToken nodeNames))
{
for (var i = 0; i < nodeNames.Length; i += 2)
{
if (!(nodeNames[i] is IDataToken <string> key))
{
continue;
}
var valueToken = nodeNames[i + 1];
var value = valuesFactory(valueToken);
if (value != null)
{
result[key.Data] = value;
}
}
}
if (nameTreeNodeDictionary.TryGet(NameToken.Kids, pdfScanner, out ArrayToken kids))
{
foreach (var kid in kids.Data)
{
if (DirectObjectFinder.TryGet(kid, pdfScanner, out DictionaryToken kidDictionary))
{
FlattenNameTree(kidDictionary, pdfScanner, valuesFactory, result);
}
}
}
}
