private string GetDtdSubset(INode documentNode, Context context)
{
using (var nullWriter = CreateNullWriter())
{
foreach (var value in GetValues(documentNode))
{
if (WriteValue(nullWriter, value, context))
{
break;
}
}
var sb = new StringBuilder();
sb.AppendLine();
foreach (var pair in context.Entities)
{
var key = pair.Key;
var name = pair.Value;
var pubId = UriTools.ExtractPublicId(pair.Key);
if (pubId != null)
{
var sysId = graph.FindObject(graph.CreateUriNode(key), isDefinedBy).OfType <IUriNode>().FirstOrDefault()?.Uri;
if (sysId == null)
{
sysId = key;
}
sb.AppendLine($"<!ENTITY {name} PUBLIC \"{pubId}\" \"{sysId.GetString()}\">");
}
else
{
sb.AppendLine($"<!ENTITY {name} SYSTEM \"{key.GetString()}\">");
}
}
return(sb.ToString());
}
}
private void WriteDocumentType(XmlWriter writer, INode documentNode, Context context)
{
var root = GetRootType(documentNode);
if (root == null)
{
return;
}
var classes = graph.FindObject(documentNode, a);
var entitySubset = GetDtdSubset(documentNode, context);
foreach (var cls in classes)
{
if (graph.FindObject(cls, subClassOf).FirstOrDefault() is IUriNode publicNode)
{
if (UriTools.ExtractPublicId(publicNode.Uri) is string pubId)
{
if (graph.FindObject(publicNode, isDefinedBy).FirstOrDefault() is IUriNode systemNode)
{
var subset = GetValues(cls).OfType <ILiteralNode>().FirstOrDefault();
writer.WriteDocType(root, pubId, systemNode.Uri.GetString(), subset?.Value + entitySubset);
return;
}
}
}
}
foreach (var cls in classes)
{
if (graph.FindObject(cls, subClassOf).FirstOrDefault() is IUriNode publicNode)
{
if (UriTools.ExtractPublicId(publicNode.Uri) is string pubId)
{
var subset = GetValues(cls).OfType <ILiteralNode>().FirstOrDefault();
writer.WriteDocType(root, pubId, null, subset?.Value + entitySubset);
return;
}
}
}
foreach (var cls in classes.OfType <IUriNode>())
{
if (UriTools.ExtractPublicId(cls.Uri) is string pubId)
{
if (graph.FindObject(cls, isDefinedBy).FirstOrDefault() is IUriNode systemNode)
{
writer.WriteDocType(root, pubId, systemNode.Uri.GetString(), entitySubset);
return;
}
}
}
foreach (var cls in classes.OfType <IUriNode>())
{
if (UriTools.ExtractPublicId(cls.Uri) is string pubId)
{
writer.WriteDocType(root, pubId, null, entitySubset);
return;
}
}
foreach (var cls in classes)
{
var subset = GetValues(cls).OfType <ILiteralNode>().FirstOrDefault();
if (subset != null)
{
writer.WriteDocType(root, null, null, subset.Value + entitySubset);
return;
}
}
if (!String.IsNullOrEmpty(entitySubset))
{
writer.WriteDocType(root, null, null, entitySubset);
}
}
public XDocumentType GetDocumentType(string root)
{
var classes = FindObject(DocumentNode, a);
foreach (var cls in classes)
{
if (FindObject(cls, subClassOf).FirstOrDefault() is IUriNode publicNode)
{
if (UriTools.ExtractPublicId(publicNode.Uri) is string pubId)
{
if (FindObject(publicNode, isDefinedBy).FirstOrDefault() is IUriNode systemNode)
{
var subset = FindObject(cls, value).OfType <ILiteralNode>().FirstOrDefault();
return(new XDocumentType(root, pubId, systemNode.Uri.GetString(), subset?.Value));
}
}
}
}
foreach (var cls in classes)
{
if (FindObject(cls, subClassOf).FirstOrDefault() is IUriNode publicNode)
{
if (UriTools.ExtractPublicId(publicNode.Uri) is string pubId)
{
var subset = FindObject(cls, value).OfType <ILiteralNode>().FirstOrDefault();
return(new XDocumentType(root, pubId, null, subset?.Value));
}
}
}
foreach (var cls in classes.OfType <IUriNode>())
{
if (UriTools.ExtractPublicId(cls.Uri) is string pubId)
{
if (FindObject(cls, isDefinedBy).FirstOrDefault() is IUriNode systemNode)
{
return(new XDocumentType(root, pubId, systemNode.Uri.GetString(), null));
}
}
}
foreach (var cls in classes.OfType <IUriNode>())
{
if (UriTools.ExtractPublicId(cls.Uri) is string pubId)
{
return(new XDocumentType(root, pubId, null, null));
}
}
foreach (var cls in classes)
{
var subset = FindObject(cls, value).OfType <ILiteralNode>().FirstOrDefault();
if (subset != null)
{
return(new XDocumentType(root, null, null, subset.Value));
}
}
return(null);
}
