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