class/System.XML/Mono.Xml/XmlFilterReader.cs

   1 //
   2 // Mono.Xml.XmlFilterReader.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (c) 2004 Novell Inc. All rights reserved
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 //
  30 // Similar to SAX DefaultHandler
  31 //
  32
  33 #if NET_2_0
  34 using System;
  35 using System.Xml;
  36 using System.Xml.Schema;
  37
  38 namespace Mono.Xml
  39 {
  40         internal class XmlFilterReader : XmlReader, IXmlLineInfo
  41         {
  42                 XmlReader reader;
  43                 XmlReaderSettings settings;
  44                 IXmlLineInfo lineInfo;
  45
  46                 public XmlFilterReader (XmlReader reader, XmlReaderSettings settings)
  47                 {
  48                         this.reader = reader;
  49                         this.settings = settings.Clone ();
  50                         this.lineInfo = reader as IXmlLineInfo;
  51                 }
  52
  53                 #region Properties
  54
  55 #if NET_2_0
  56                 public override bool CanReadBinaryContent {
  57                         get { return reader.CanReadBinaryContent; }
  58                 }
  59
  60                 public override bool CanReadValueChunk {
  61                         get { return reader.CanReadValueChunk; }
  62                 }
  63 #endif
  64
  65                 // This is the only one non-overriden property.
  66                 public XmlReader Reader {
  67                         get { return reader; }
  68                 }
  69
  70                 public int LineNumber {
  71                         get { return lineInfo != null ? lineInfo.LineNumber : 0; }
  72                 }
  73
  74                 public int LinePosition {
  75                         get { return lineInfo != null ? lineInfo.LinePosition : 0; }
  76                 }
  77
  78                 public override XmlNodeType NodeType
  79                 {
  80                         get { return reader.NodeType; }
  81                 }
  82
  83                 public override string Name {
  84                         get { return reader.Name; }
  85                 }
  86
  87                 public override string LocalName {
  88                         get { return reader.LocalName; }
  89                 }
  90
  91                 public override string NamespaceURI {
  92                         get { return reader.NamespaceURI; }
  93                 }
  94
  95                 public override string Prefix {
  96                         get { return reader.Prefix; }
  97                 }
  98
  99                 public override bool HasValue {
 100                         get { return reader.HasValue; }
 101                 }
 102
 103                 public override int Depth {
 104                         get { return reader.Depth; }
 105                 }
 106
 107                 public override string Value {
 108                         get { return reader.Value; }
 109                 }
 110
 111                 public override string BaseURI {
 112                         get { return reader.BaseURI; }
 113                 }
 114
 115                 public override bool IsEmptyElement {
 116                         get { return reader.IsEmptyElement; }
 117                 }
 118
 119                 public override bool IsDefault {
 120                         get { return reader.IsDefault; }
 121                 }
 122
 123                 public override char QuoteChar {
 124                         get { return reader.QuoteChar; }
 125                 }
 126
 127                 public override string XmlLang {
 128                         get { return reader.XmlLang; }
 129                 }
 130
 131                 public override XmlSpace XmlSpace {
 132                         get { return reader.XmlSpace; }
 133                 }
 134
 135                 public override int AttributeCount {
 136                         get { return reader.AttributeCount; }
 137                 }
 138
 139                 public override string this [int i] {
 140                         get { return reader [i]; }
 141                 }
 142
 143                 public override string this [string name] {
 144                         get { return reader [name]; }
 145                 }
 146
 147                 public override string this [string localName, string namespaceURI] {
 148                         get { return reader [localName, namespaceURI]; }
 149                 }
 150
 151                 public override bool EOF {
 152                         get { return reader.EOF; }
 153                 }
 154
 155                 public override ReadState ReadState {
 156                         get { return reader.ReadState; }
 157                 }
 158
 159                 public override XmlNameTable NameTable {
 160                         get { return reader.NameTable; }
 161                 }
 162
 163 #if !NET_2_1
 164                 public override IXmlSchemaInfo SchemaInfo {
 165                         get { return reader.SchemaInfo; }
 166                 }
 167 #endif
 168
 169                 public override XmlReaderSettings Settings {
 170                         get { return settings; }
 171                 }
 172                 #endregion
 173
 174                 #region Methods
 175
 176                 public override string GetAttribute (string name)
 177                 {
 178                         return reader.GetAttribute (name);
 179                 }
 180
 181                 public override string GetAttribute (string localName, string namespaceURI)
 182                 {
 183                         return reader.GetAttribute (localName, namespaceURI);
 184                 }
 185
 186                 public override string GetAttribute (int i)
 187                 {
 188                         return reader.GetAttribute (i);
 189                 }
 190
 191                 public bool HasLineInfo ()
 192                 {
 193                         return lineInfo != null ? lineInfo.HasLineInfo () : false;
 194                 }
 195
 196                 public override bool MoveToAttribute (string name)
 197                 {
 198                         return reader.MoveToAttribute (name);
 199                 }
 200
 201                 public override bool MoveToAttribute (string localName, string namespaceURI)
 202                 {
 203                         return reader.MoveToAttribute (localName, namespaceURI);
 204                 }
 205
 206                 public override void MoveToAttribute (int i)
 207                 {
 208                         reader.MoveToAttribute (i);
 209                 }
 210
 211                 public override bool MoveToFirstAttribute ()
 212                 {
 213                         return reader.MoveToFirstAttribute ();
 214                 }
 215
 216                 public override bool MoveToNextAttribute ()
 217                 {
 218                         return reader.MoveToNextAttribute ();
 219                 }
 220
 221                 public override bool MoveToElement ()
 222                 {
 223                         return reader.MoveToElement ();
 224                 }
 225
 226                 public override void Close ()
 227                 {
 228                         if (settings.CloseInput)
 229                                 reader.Close ();
 230                 }
 231
 232                 public override bool Read ()
 233                 {
 234                         if (!reader.Read ())
 235                                 return false;
 236
 237                         if (reader.NodeType == XmlNodeType.DocumentType && settings.ProhibitDtd)
 238                                 throw new XmlException ("Document Type Definition (DTD) is prohibited in this XML reader.");
 239
 240                         if (reader.NodeType == XmlNodeType.Whitespace &&
 241                                 settings.IgnoreWhitespace)
 242                                         return Read ();
 243                         if (reader.NodeType == XmlNodeType.ProcessingInstruction &&
 244                                 settings.IgnoreProcessingInstructions)
 245                                         return Read ();
 246                         if (reader.NodeType == XmlNodeType.Comment &&
 247                                 settings.IgnoreComments)
 248                                         return Read ();
 249
 250                         return true;
 251                 }
 252
 253                 public override string ReadString ()
 254                 {
 255                         return reader.ReadString ();
 256                 }
 257
 258 #if NET_1_1
 259 #else
 260                 public override string ReadInnerXml ()
 261                 {
 262                         return ReadInnerXmlInternal ();
 263                 }
 264
 265                 public override string ReadOuterXml ()
 266                 {
 267                         return ReadOuterXmlInternal ();
 268                 }
 269 #endif
 270
 271                 public override string LookupNamespace (string prefix)
 272                 {
 273                         return reader.LookupNamespace (prefix);
 274                 }
 275
 276                 public override void ResolveEntity ()
 277                 {
 278                         reader.ResolveEntity ();
 279                 }
 280
 281                 public override bool ReadAttributeValue () {
 282                         return reader.ReadAttributeValue ();
 283                 }
 284                 #endregion
 285         }
 286 }
 287
 288 #endif