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