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using System;
using System.Collections;
using System.Collections.Specialized;
using System.Xml;
using Commons.Xml;
namespace Commons.Xml.Nvdl
{
public class NvdlBuiltInValidationProvider : NvdlValidationProvider
{
public NvdlBuiltInValidationProvider ()
{
}
public override NvdlValidatorGenerator CreateGenerator (
XmlReader reader, NvdlConfig config)
{
reader.MoveToContent ();
if (reader.NodeType != XmlNodeType.Element ||
reader.NamespaceURI != Nvdl.BuiltInValidationNamespace)
return null;
return new NvdlBuiltInValidatorGenerator (reader.LocalName == "allow");
}
}
internal class NvdlBuiltInValidatorGenerator : NvdlValidatorGenerator
{
bool allow;
public NvdlBuiltInValidatorGenerator (bool allow)
{
this.allow = allow;
}
public override XmlReader CreateValidator (XmlReader reader, XmlResolver resolver)
{
return new NvdlBuiltInValidationReader (reader, allow);
}
public override bool AddOption (string name, string arg)
{
return false;
}
}
internal class NvdlBuiltInValidationReader : XmlDefaultReader
{
bool allow;
public NvdlBuiltInValidationReader (XmlReader reader, bool allow)
: base (reader)
{
this.allow = allow;
}
public override bool Read ()
{
if (!Reader.Read ())
return false;
if (!allow)
throw new NvdlValidationException (String.Format ("The NVDL script does not allow an element whose namespace is '{0}'", Reader.NamespaceURI), Reader as IXmlLineInfo);
return true;
}
}
}
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