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

   1 // Author: Dwivedi, Ajay kumar\r
   2 //            Adwiv@Yahoo.com\r
   3 using System;\r
   4 using System.Xml;\r
   5 \r
   6 namespace System.Xml.Schema\r
   7 {\r
   8         /// <summary>\r
   9         /// Summary description for XmlSchemaLengthFacet.\r
  10         /// </summary>\r
  11         public class XmlSchemaLengthFacet : XmlSchemaNumericFacet\r
  12         {\r
  13                 const string xmlname = "length";\r
  14 \r
  15                 public XmlSchemaLengthFacet()\r
  16                 {\r
  17                 }\r
  18 \r
  19                 internal override Facet ThisFacet {\r
  20                         get { return Facet.length ; }\r
  21                 }\r
  22                 \r
  23                 //<length\r
  24                 //      fixed = boolean : false\r
  25                 //      id = ID\r
  26                 //      value = nonNegativeInteger\r
  27                 //      {any attributes with non-schema namespace . . .}>\r
  28                 //      Content: (annotation?)\r
  29                 //</length>\r
  30                 internal static XmlSchemaLengthFacet Read(XmlSchemaReader reader, ValidationEventHandler h)\r
  31                 {\r
  32                         XmlSchemaLengthFacet length = new XmlSchemaLengthFacet();\r
  33                         reader.MoveToElement();\r
  34 \r
  35                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)\r
  36                         {\r
  37                                 error(h,"Should not happen :1: XmlSchemaLengthFacet.Read, name="+reader.Name,null);\r
  38                                 reader.Skip();\r
  39                                 return null;\r
  40                         }\r
  41 \r
  42                         length.LineNumber = reader.LineNumber;\r
  43                         length.LinePosition = reader.LinePosition;\r
  44                         length.SourceUri = reader.BaseURI;\r
  45 \r
  46                         while(reader.MoveToNextAttribute())\r
  47                         {\r
  48                                 if(reader.Name == "id")\r
  49                                 {\r
  50                                         length.Id = reader.Value;\r
  51                                 }\r
  52                                 else if(reader.Name == "fixed")\r
  53                                 {\r
  54                                         Exception innerex;\r
  55                                         length.IsFixed = XmlSchemaUtil.ReadBoolAttribute(reader,out innerex);\r
  56                                         if(innerex != null)\r
  57                                                 error(h, reader.Value + " is not a valid value for fixed attribute",innerex);\r
  58                                 }\r
  59                                 else if(reader.Name == "value")\r
  60                                 {\r
  61                                         length.Value = reader.Value;\r
  62                                 }\r
  63                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)\r
  64                                 {\r
  65                                         error(h,reader.Name + " is not a valid attribute for group",null);\r
  66                                 }\r
  67                                 else\r
  68                                 {\r
  69                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,length);\r
  70                                 }\r
  71                         }\r
  72                         \r
  73                         reader.MoveToElement();\r
  74                         if(reader.IsEmptyElement)\r
  75                                 return length;\r
  76 \r
  77                         //  Content: (annotation?)\r
  78                         int level = 1;\r
  79                         while(reader.ReadNextElement())\r
  80                         {\r
  81                                 if(reader.NodeType == XmlNodeType.EndElement)\r
  82                                 {\r
  83                                         if(reader.LocalName != xmlname)\r
  84                                                 error(h,"Should not happen :2: XmlSchemaLengthFacet.Read, name="+reader.Name,null);\r
  85                                         break;\r
  86                                 }\r
  87                                 if(level <= 1 && reader.LocalName == "annotation")\r
  88                                 {\r
  89                                         level = 2;      //Only one annotation\r
  90                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);\r
  91                                         if(annotation != null)\r
  92                                                 length.Annotation = annotation;\r
  93                                         continue;\r
  94                                 }\r
  95                                 reader.RaiseInvalidElementError();\r
  96                         }                       \r
  97                         return length;\r
  98                 }\r
  99         }\r
 100 }\r