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// Author: Dwivedi, Ajay kumar
// Adwiv@Yahoo.com
using System;
using System.Xml;
using System.Xml.Serialization;
namespace System.Xml.Schema
{
/// <summary>
/// Summary description for XmlSchemaSimpleContentExtension.
/// </summary>
public class XmlSchemaSimpleContentExtension : XmlSchemaContent
{
private XmlSchemaAnyAttribute any;
private XmlSchemaObjectCollection attributes;
private XmlQualifiedName baseTypeName;
private static string xmlname = "extension";
public XmlSchemaSimpleContentExtension()
{
baseTypeName = XmlQualifiedName.Empty;
attributes = new XmlSchemaObjectCollection();
}
[System.Xml.Serialization.XmlAttribute("base")]
public XmlQualifiedName BaseTypeName
{
get{ return baseTypeName; }
set{ baseTypeName = value; }
}
[XmlElement("attribute",typeof(XmlSchemaAttribute),Namespace="http://www.w3.org/2001/XMLSchema")]
[XmlElement("attributeGroup",typeof(XmlSchemaAttributeGroupRef),Namespace="http://www.w3.org/2001/XMLSchema")]
public XmlSchemaObjectCollection Attributes
{
get{ return attributes; }
}
[XmlElement("anyAttribute",Namespace="http://www.w3.org/2001/XMLSchema")]
public XmlSchemaAnyAttribute AnyAttribute
{
get{ return any; }
set{ any = value; }
}
///<remarks>
/// 1. Base must be present and a QName
///</remarks>
[MonoTODO]
internal int Compile(ValidationEventHandler h, XmlSchemaInfo info)
{
if(BaseTypeName == null || BaseTypeName.IsEmpty)
{
error(h, "base must be present and a QName");
}
else if(!XmlSchemaUtil.CheckQName(BaseTypeName))
error(h,"BaseTypeName must be a QName");
if(this.AnyAttribute != null)
{
errorCount += AnyAttribute.Compile(h,info);
}
foreach(XmlSchemaObject obj in Attributes)
{
if(obj is XmlSchemaAttribute)
{
XmlSchemaAttribute attr = (XmlSchemaAttribute) obj;
errorCount += attr.Compile(h,info);
}
else if(obj is XmlSchemaAttributeGroupRef)
{
XmlSchemaAttributeGroupRef atgrp = (XmlSchemaAttributeGroupRef) obj;
errorCount += atgrp.Compile(h,info);
}
else
error(h,obj.GetType() +" is not valid in this place::SimpleConentExtension");
}
XmlSchemaUtil.CompileID(Id,this,info.IDCollection,h);
return errorCount;
}
[MonoTODO]
internal int Validate(ValidationEventHandler h)
{
return errorCount;
}
//<extension
//base = QName
//id = ID
//{any attributes with non-schema namespace . . .}>
//Content: (annotation?, ((attribute | attributeGroup)*, anyAttribute?))
//</extension>
internal static XmlSchemaSimpleContentExtension Read(XmlSchemaReader reader, ValidationEventHandler h)
{
XmlSchemaSimpleContentExtension extension = new XmlSchemaSimpleContentExtension();
reader.MoveToElement();
if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
{
error(h,"Should not happen :1: XmlSchemaAttributeGroup.Read, name="+reader.Name,null);
reader.Skip();
return null;
}
extension.LineNumber = reader.LineNumber;
extension.LinePosition = reader.LinePosition;
extension.SourceUri = reader.BaseURI;
while(reader.MoveToNextAttribute())
{
if(reader.Name == "base")
{
Exception innerex;
extension.baseTypeName= XmlSchemaUtil.ReadQNameAttribute(reader,out innerex);
if(innerex != null)
error(h, reader.Value + " is not a valid value for base attribute",innerex);
}
else if(reader.Name == "id")
{
extension.Id = reader.Value;
}
else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
{
error(h,reader.Name + " is not a valid attribute for extension in this context",null);
}
else
{
XmlSchemaUtil.ReadUnhandledAttribute(reader,extension);
}
}
reader.MoveToElement();
if(reader.IsEmptyElement)
return extension;
//Content: 1.annotation?, 2.(attribute | attributeGroup)*, 3.anyAttribute?
int level = 1;
while(reader.ReadNextElement())
{
if(reader.NodeType == XmlNodeType.EndElement)
{
if(reader.LocalName != xmlname)
error(h,"Should not happen :2: XmlSchemaSimpleContentExtension.Read, name="+reader.Name,null);
break;
}
if(level <= 1 && reader.LocalName == "annotation")
{
level = 2; //Only one annotation
XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
if(annotation != null)
extension.Annotation = annotation;
continue;
}
if(level <= 2)
{
if(reader.LocalName == "attribute")
{
level = 2;
XmlSchemaAttribute attr = XmlSchemaAttribute.Read(reader,h);
if(attr != null)
extension.Attributes.Add(attr);
continue;
}
if(reader.LocalName == "attributeGroup")
{
level = 2;
XmlSchemaAttributeGroupRef attr = XmlSchemaAttributeGroupRef.Read(reader,h);
if(attr != null)
extension.attributes.Add(attr);
continue;
}
}
if(level <= 3 && reader.LocalName == "anyAttribute")
{
level = 4;
XmlSchemaAnyAttribute anyattr = XmlSchemaAnyAttribute.Read(reader,h);
if(anyattr != null)
extension.AnyAttribute = anyattr;
continue;
}
reader.RaiseInvalidElementError();
}
return extension;
}
}
}
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