mcs/class/System.XML/System.Xml.Schema/XmlSchemaWhiteSpaceFacet.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 XmlSchemaWhiteSpaceFacet.
  31         /// </summary>
  32         public class XmlSchemaWhiteSpaceFacet : XmlSchemaFacet
  33         {
  34                 const string xmlname = "whiteSpace";
  35
  36                 public XmlSchemaWhiteSpaceFacet()
  37                 {
  38                 }
  39
  40                 internal override Facet ThisFacet {
  41                         get { return Facet.whiteSpace;}
  42                 }
  43
  44                 //      <whiteSpace
  45                 //      fixed = boolean : false
  46                 //      id = ID
  47                 //      value = (collapse | preserve | replace)
  48                 //      {any attributes with non-schema namespace . . .}>
  49                 //      Content: (annotation?)
  50                 //      </whiteSpace>
  51                 internal static XmlSchemaWhiteSpaceFacet Read(XmlSchemaReader reader, ValidationEventHandler h)
  52                 {
  53                         XmlSchemaWhiteSpaceFacet ws = new XmlSchemaWhiteSpaceFacet();
  54                         reader.MoveToElement();
  55
  56                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
  57                         {
  58                                 error(h,"Should not happen :1: XmlSchemaWhiteSpaceFacet.Read, name="+reader.Name,null);
  59                                 reader.Skip();
  60                                 return null;
  61                         }
  62
  63                         ws.LineNumber = reader.LineNumber;
  64                         ws.LinePosition = reader.LinePosition;
  65                         ws.SourceUri = reader.BaseURI;
  66
  67                         while(reader.MoveToNextAttribute())
  68                         {
  69                                 if(reader.Name == "id")
  70                                 {
  71                                         ws.Id = reader.Value;
  72                                 }
  73                                 else if(reader.Name == "fixed")
  74                                 {
  75                                         Exception innerex;
  76                                         ws.IsFixed = XmlSchemaUtil.ReadBoolAttribute(reader,out innerex);
  77                                         if(innerex != null)
  78                                                 error(h, reader.Value + " is not a valid value for fixed attribute",innerex);
  79                                 }
  80                                 else if(reader.Name == "value")
  81                                 {
  82                                         ws.Value = reader.Value;
  83                                 }
  84                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
  85                                 {
  86                                         error(h,reader.Name + " is not a valid attribute for "+xmlname,null);
  87                                 }
  88                                 else
  89                                 {
  90                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,ws);
  91                                 }
  92                         }
  93
  94                         reader.MoveToElement();
  95                         if(reader.IsEmptyElement)
  96                                 return ws;
  97
  98                         //  Content: (annotation?)
  99                         int level = 1;
 100                         while(reader.ReadNextElement())
 101                         {
 102                                 if(reader.NodeType == XmlNodeType.EndElement)
 103                                 {
 104                                         if(reader.LocalName != xmlname)
 105                                                 error(h,"Should not happen :2: XmlSchemaWhiteSpaceFacet.Read, name="+reader.Name,null);
 106                                         break;
 107                                 }
 108                                 if(level <= 1 && reader.LocalName == "annotation")
 109                                 {
 110                                         level = 2;      //Only one annotation
 111                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 112                                         if(annotation != null)
 113                                                 ws.Annotation = annotation;
 114                                         continue;
 115                                 }
 116                                 reader.RaiseInvalidElementError();
 117                         }
 118                         return ws;
 119                 }
 120
 121
 122         }
 123 }