mcs/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
  37 namespace Mono.Xml
  38 {
  39         internal class XmlFilterReader : XmlReader, IXmlLineInfo
  40         {
  41                 XmlReader reader;
  42                 XmlReaderSettings settings;
  43                 IXmlLineInfo lineInfo;
  44
  45                 public XmlFilterReader (XmlReader reader, XmlReaderSettings settings)
  46                 {
  47                         this.reader = reader;
  48                         this.settings = settings;
  49                         this.lineInfo = reader as IXmlLineInfo;
  50                 }
  51
  52                 #region Properties
  53                 // This is the only one non-overriden property.
  54                 public XmlReader Reader {
  55                         get { return reader; }
  56                 }
  57
  58                 public int LineNumber {
  59                         get { return lineInfo != null ? lineInfo.LineNumber : 0; }
  60                 }
  61
  62                 public int LinePosition {
  63                         get { return lineInfo != null ? lineInfo.LinePosition : 0; }
  64                 }
  65
  66                 public override XmlNodeType NodeType
  67                 {
  68                         get { return reader.NodeType; }
  69                 }
  70
  71                 public override string Name {
  72                         get { return reader.Name; }
  73                 }
  74
  75                 public override string LocalName {
  76                         get { return reader.LocalName; }
  77                 }
  78
  79                 public override string NamespaceURI {
  80                         get { return reader.NamespaceURI; }
  81                 }
  82
  83                 public override string Prefix {
  84                         get { return reader.Prefix; }
  85                 }
  86
  87                 public override bool HasValue {
  88                         get { return reader.HasValue; }
  89                 }
  90
  91                 public override int Depth {
  92                         get { return reader.Depth; }
  93                 }
  94
  95                 public override string Value {
  96                         get { return reader.Value; }
  97                 }
  98
  99                 public override string BaseURI {
 100                         get { return reader.BaseURI; }
 101                 }
 102
 103                 public override bool IsEmptyElement {
 104                         get { return reader.IsEmptyElement; }
 105                 }
 106
 107                 public override bool IsDefault {
 108                         get { return reader.IsDefault; }
 109                 }
 110
 111                 public override char QuoteChar {
 112                         get { return reader.QuoteChar; }
 113                 }
 114
 115                 public override string XmlLang {
 116                         get { return reader.XmlLang; }
 117                 }
 118
 119                 public override XmlSpace XmlSpace {
 120                         get { return reader.XmlSpace; }
 121                 }
 122
 123                 public override int AttributeCount {
 124                         get { return reader.AttributeCount; }
 125                 }
 126
 127                 public override string this [int i] {
 128                         get { return reader [i]; }
 129                 }
 130
 131                 public override string this [string name] {
 132                         get { return reader [name]; }
 133                 }
 134
 135                 public override string this [string localName, string namespaceURI] {
 136                         get { return reader [localName, namespaceURI]; }
 137                 }
 138
 139                 public override bool EOF {
 140                         get { return reader.EOF; }
 141                 }
 142
 143                 public override ReadState ReadState {
 144                         get { return reader.ReadState; }
 145                 }
 146
 147                 public override XmlNameTable NameTable {
 148                         get { return reader.NameTable; }
 149                 }
 150                 #endregion
 151
 152                 #region Methods
 153
 154                 public override string GetAttribute (string name)
 155                 {
 156                         return reader.GetAttribute (name);
 157                 }
 158
 159                 public override string GetAttribute (string localName, string namespaceURI)
 160                 {
 161                         return reader.GetAttribute (localName, namespaceURI);
 162                 }
 163
 164                 public override string GetAttribute (int i)
 165                 {
 166                         return reader.GetAttribute (i);
 167                 }
 168
 169                 public bool HasLineInfo ()
 170                 {
 171                         return lineInfo != null ? lineInfo.HasLineInfo () : false;
 172                 }
 173
 174                 public override bool MoveToAttribute (string name)
 175                 {
 176                         return reader.MoveToAttribute (name);
 177                 }
 178
 179                 public override bool MoveToAttribute (string localName, string namespaceURI)
 180                 {
 181                         return reader.MoveToAttribute (localName, namespaceURI);
 182                 }
 183
 184                 public override void MoveToAttribute (int i)
 185                 {
 186                         reader.MoveToAttribute (i);
 187                 }
 188
 189                 public override bool MoveToFirstAttribute ()
 190                 {
 191                         return reader.MoveToFirstAttribute ();
 192                 }
 193
 194                 public override bool MoveToNextAttribute ()
 195                 {
 196                         return reader.MoveToNextAttribute ();
 197                 }
 198
 199                 public override bool MoveToElement ()
 200                 {
 201                         return reader.MoveToElement ();
 202                 }
 203
 204                 public override void Close ()
 205                 {
 206                         reader.Close ();
 207                 }
 208
 209                 public override bool Read ()
 210                 {
 211                         if (!reader.Read ())
 212                                 return false;
 213
 214                         if (reader.NodeType == XmlNodeType.DocumentType && settings.ProhibitDtd)
 215                                 throw new XmlException ("Document Type Definition (DTD) is prohibited in this XML reader.");
 216
 217                         if (reader.NodeType == XmlNodeType.Whitespace &&
 218                                 settings.IgnoreWhitespace)
 219                                         return Read ();
 220                         if (reader.NodeType == XmlNodeType.ProcessingInstruction &&
 221                                 settings.IgnoreProcessingInstructions)
 222                                         return Read ();
 223                         if (reader.NodeType == XmlNodeType.Comment &&
 224                                 settings.IgnoreComments)
 225                                         return Read ();
 226
 227                         return true;
 228                 }
 229
 230                 public override string ReadString ()
 231                 {
 232                         return reader.ReadString ();
 233                 }
 234
 235 #if NET_1_1
 236 #else
 237                 public override string ReadInnerXml ()
 238                 {
 239                         return ReadInnerXmlInternal ();
 240                 }
 241
 242                 public override string ReadOuterXml ()
 243                 {
 244                         return ReadOuterXmlInternal ();
 245                 }
 246 #endif
 247
 248                 public override string LookupNamespace (string prefix)
 249                 {
 250                         return reader.LookupNamespace (prefix);
 251                 }
 252
 253                 public override void ResolveEntity ()
 254                 {
 255                         reader.ResolveEntity ();
 256                 }
 257
 258                 public override bool ReadAttributeValue () {
 259                         return reader.ReadAttributeValue ();
 260                 }
 261                 #endregion
 262         }
 263 }
 264
 265 #endif