mcs/class/System.XML/System.Xml.Schema/XmlSchemaEnumerationFacet.cs

   1 // Author: Dwivedi, Ajay kumar
   2 //            Adwiv@Yahoo.com
   3
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining
   6 // a copy of this software and associated documentation files (the
   7 // "Software"), to deal in the Software without restriction, including
   8 // without limitation the rights to use, copy, modify, merge, publish,
   9 // distribute, sublicense, and/or sell copies of the Software, and to
  10 // permit persons to whom the Software is furnished to do so, subject to
  11 // the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be
  14 // included in all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 //
  24 using System;
  25 using System.Xml;
  26
  27 namespace System.Xml.Schema
  28 {
  29         /// <summary>
  30         /// Summary description for XmlSchemaEnumerationFacet.
  31         /// </summary>
  32         public class XmlSchemaEnumerationFacet : XmlSchemaFacet
  33         {
  34                 const string xmlname = "enumeration";
  35                 public XmlSchemaEnumerationFacet()
  36                 {
  37                 }
  38
  39                 internal override Facet ThisFacet {
  40                         get { return Facet.enumeration;}
  41                 }
  42
  43
  44                 //<enumeration
  45                 //  id = ID
  46                 //  value = anySimpleType
  47                 //  {any attributes with non-schema namespace . . .}>
  48                 //  Content: (annotation?)
  49                 //</enumeration>
  50                 internal static XmlSchemaEnumerationFacet Read(XmlSchemaReader reader, ValidationEventHandler h)
  51                 {
  52                         XmlSchemaEnumerationFacet enumeration = new XmlSchemaEnumerationFacet();
  53                         reader.MoveToElement();
  54
  55                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
  56                         {
  57                                 error(h,"Should not happen :1: XmlSchemaEnumerationFacet.Read, name="+reader.Name,null);
  58                                 reader.Skip();
  59                                 return null;
  60                         }
  61
  62                         enumeration.LineNumber = reader.LineNumber;
  63                         enumeration.LinePosition = reader.LinePosition;
  64                         enumeration.SourceUri = reader.BaseURI;
  65
  66                         while(reader.MoveToNextAttribute())
  67                         {
  68                                 if(reader.Name == "id")
  69                                 {
  70                                         enumeration.Id = reader.Value;
  71                                 }
  72                                 else if(reader.Name == "value")
  73                                 {
  74                                         enumeration.Value = reader.Value;
  75                                 }
  76                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
  77                                 {
  78                                         error(h,reader.Name + " is not a valid attribute for "+xmlname,null);
  79                                 }
  80                                 else
  81                                 {
  82                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,enumeration);
  83                                 }
  84                         }
  85
  86                         reader.MoveToElement();
  87                         if(reader.IsEmptyElement)
  88                                 return enumeration;
  89
  90                         //  Content: (annotation?)
  91                         int level = 1;
  92                         while(reader.ReadNextElement())
  93                         {
  94                                 if(reader.NodeType == XmlNodeType.EndElement)
  95                                 {
  96                                         if(reader.LocalName != xmlname)
  97                                                 error(h,"Should not happen :2: XmlSchemaEnumerationFacet.Read, name="+reader.Name,null);
  98                                         break;
  99                                 }
 100                                 if(level <= 1 && reader.LocalName == "annotation")
 101                                 {
 102                                         level = 2;      //Only one annotation
 103                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 104                                         if(annotation != null)
 105                                                 enumeration.Annotation = annotation;
 106                                         continue;
 107                                 }
 108                                 reader.RaiseInvalidElementError();
 109                         }
 110                         return enumeration;
 111                 }
 112         }
 113 }