1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
|
//
// System.Xml.XmlElement
//
// Author:
// Jason Diamond (jason@injektilo.org)
// Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
//
// (C) 2002 Jason Diamond http://injektilo.org/
// (C) 2002 Atsushi Enomoto
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Xml.XPath;
using System.IO;
using System.Text;
using Mono.Xml;
#if NET_2_0
using System.Xml.Schema;
#endif
namespace System.Xml
{
public class XmlElement : XmlLinkedNode
{
#region Fields
private XmlAttributeCollection attributes;
private XmlNameEntry name;
private bool isNotEmpty;
#if NET_2_0
IXmlSchemaInfo schemaInfo;
#endif
#endregion
#region Constructor
protected internal XmlElement (
string prefix,
string localName,
string namespaceURI,
XmlDocument doc) : this (prefix, localName, namespaceURI, doc, false)
{
}
internal XmlElement (
string prefix,
string localName,
string namespaceURI,
XmlDocument doc,
bool atomizedNames) : base (doc)
{
XmlConvert.VerifyName (localName);
if (!atomizedNames) {
prefix = doc.NameTable.Add (prefix);
localName = doc.NameTable.Add (localName);
namespaceURI = doc.NameTable.Add (namespaceURI);
}
name = doc.NameCache.Add (prefix, localName, namespaceURI, true);
// attributes = new XmlAttributeCollection (this);
if(doc.DocumentType != null)
{
DTDAttListDeclaration attlist = doc.DocumentType.DTD.AttListDecls [localName];
if (attlist != null) {
for (int i = 0; i < attlist.Definitions.Count; i++) {
DTDAttributeDefinition def = attlist [i];
if (def.DefaultValue != null) {
SetAttribute (def.Name, def.DefaultValue);
Attributes [def.Name].SetDefault ();
}
}
}
}
}
#endregion
#region Properties
public override XmlAttributeCollection Attributes {
get {
if (attributes == null)
attributes = new XmlAttributeCollection (this);
return attributes;
}
}
public virtual bool HasAttributes {
get { return attributes != null && attributes.Count > 0; }
}
public override string InnerText {
get {
return base.InnerText;
}
set {
// Why its behavior (of MS FCL) is different from InnerXml...?
if (FirstChild != null && FirstChild.NextSibling == null && FirstChild.NodeType == XmlNodeType.Text)
FirstChild.Value = value;
else {
while (FirstChild != null)
this.RemoveChild (FirstChild);
// creates new Text node
AppendChild (OwnerDocument.CreateTextNode (value));
}
}
}
public override string InnerXml {
get {
return base.InnerXml;
}
set {
while (FirstChild != null)
this.RemoveChild (FirstChild);
XmlNamespaceManager nsmgr = this.ConstructNamespaceManager ();
XmlParserContext ctx = new XmlParserContext (OwnerDocument.NameTable, nsmgr,
OwnerDocument.DocumentType != null ? OwnerDocument.DocumentType.DTD : null,
BaseURI, XmlLang, XmlSpace, null);
XmlTextReader xmlReader = new XmlTextReader (value, XmlNodeType.Element, ctx);
xmlReader.XmlResolver = OwnerDocument.Resolver;
do {
XmlNode n = OwnerDocument.ReadNode (xmlReader);
if(n == null) break;
AppendChild (n);
} while (true);
}
}
public bool IsEmpty {
get {
return !isNotEmpty && (FirstChild == null);
}
set {
isNotEmpty = !value;
if(value) {
while (FirstChild != null)
RemoveChild (FirstChild);
}
}
}
public override string LocalName {
get { return name.LocalName; }
}
public override string Name {
get {
if (name.Prefix == String.Empty || name.Prefix == null)
return name.LocalName;
else
return OwnerDocument.NameTable.Add (name.Prefix + ":" + name.LocalName);
}
}
public override string NamespaceURI {
get { return name.NS; }
}
// Why is this override?
public override XmlNode NextSibling {
get {
return base.NextSibling;
}
}
public override XmlNodeType NodeType {
get {
return XmlNodeType.Element;
}
}
internal override XPathNodeType XPathNodeType {
get {
return XPathNodeType.Element;
}
}
public override XmlDocument OwnerDocument {
get {
return base.OwnerDocument;
}
}
public override string Prefix {
get { return name.Prefix; }
set {
if (IsReadOnly)
throw new ArgumentException ("This node is readonly.");
if (value == null) {
#if NET_2_0
value = string.Empty;
#else
throw new ArgumentNullException ("Prefix value is null.");
#endif
}
if ((!String.Empty.Equals(value))&&(!XmlChar.IsNCName (value)))
throw new ArgumentException ("Specified name is not a valid NCName: " + value);
value = OwnerDocument.NameTable.Add (value);
name = OwnerDocument.NameCache.Add (value,
name.LocalName, name.NS, true);
}
}
#if NET_2_0
public override XmlNode ParentNode {
get { return base.ParentNode; }
}
public override IXmlSchemaInfo SchemaInfo {
get { return schemaInfo; }
internal set { schemaInfo = value; }
}
#endif
#endregion
#region Methods
public override XmlNode CloneNode (bool deep)
{
XmlElement node = new XmlElement (
name.Prefix, name.LocalName, name.NS, OwnerDocument, true);
for (int i = 0; i < Attributes.Count; i++)
node.SetAttributeNode ((XmlAttribute)
Attributes [i].CloneNode (true));
if (deep) {
for (int i = 0; i < ChildNodes.Count; i++)
node.AppendChild (ChildNodes [i].CloneNode (true));
}
return node;
}
public virtual string GetAttribute (string name)
{
XmlNode attributeNode = Attributes.GetNamedItem (name);
return attributeNode != null ? attributeNode.Value : String.Empty;
}
public virtual string GetAttribute (string localName, string namespaceURI)
{
XmlNode attributeNode = Attributes.GetNamedItem (localName, namespaceURI);
return attributeNode != null ? attributeNode.Value : String.Empty;
}
public virtual XmlAttribute GetAttributeNode (string name)
{
XmlNode attributeNode = Attributes.GetNamedItem (name);
return attributeNode != null ? attributeNode as XmlAttribute : null;
}
public virtual XmlAttribute GetAttributeNode (string localName, string namespaceURI)
{
XmlNode attributeNode = Attributes.GetNamedItem (localName, namespaceURI);
return attributeNode != null ? attributeNode as XmlAttribute : null;
}
public virtual XmlNodeList GetElementsByTagName (string name)
{
ArrayList nodeArrayList = new ArrayList ();
this.SearchDescendantElements (name, name == "*", nodeArrayList);
return new XmlNodeArrayList (nodeArrayList);
}
public virtual XmlNodeList GetElementsByTagName (string localName, string namespaceURI)
{
ArrayList nodeArrayList = new ArrayList ();
this.SearchDescendantElements (localName, localName == "*", namespaceURI, namespaceURI == "*", nodeArrayList);
return new XmlNodeArrayList (nodeArrayList);
}
public virtual bool HasAttribute (string name)
{
XmlNode attributeNode = Attributes.GetNamedItem (name);
return attributeNode != null;
}
public virtual bool HasAttribute (string localName, string namespaceURI)
{
XmlNode attributeNode = Attributes.GetNamedItem (localName, namespaceURI);
return attributeNode != null;
}
public override void RemoveAll ()
{
// Remove all attributes and child nodes.
base.RemoveAll ();
}
public virtual void RemoveAllAttributes ()
{
if (attributes != null)
attributes.RemoveAll ();
}
public virtual void RemoveAttribute (string name)
{
if (attributes == null)
return;
XmlAttribute attr = Attributes.GetNamedItem (name) as XmlAttribute;
if (attr != null)
Attributes.Remove(attr);
}
public virtual void RemoveAttribute (string localName, string namespaceURI)
{
if (attributes == null)
return;
XmlAttribute attr = attributes.GetNamedItem(localName, namespaceURI) as XmlAttribute;
if (attr != null)
Attributes.Remove(attr);
}
public virtual XmlNode RemoveAttributeAt (int i)
{
if (attributes == null || attributes.Count <= i)
return null;
return Attributes.RemoveAt (i);
}
public virtual XmlAttribute RemoveAttributeNode (XmlAttribute oldAttr)
{
if (attributes == null)
return null;
return Attributes.Remove (oldAttr);
}
public virtual XmlAttribute RemoveAttributeNode (string localName, string namespaceURI)
{
if (attributes == null)
return null;
return Attributes.Remove (attributes [localName, namespaceURI]);
}
public virtual void SetAttribute (string name, string value)
{
XmlAttribute attribute = OwnerDocument.CreateAttribute (name);
attribute.Value = value;
Attributes.SetNamedItem (attribute);
}
public virtual string SetAttribute (string localName, string namespaceURI, string value)
{
XmlAttribute attr = Attributes [localName, namespaceURI];
if (attr == null) {
attr = OwnerDocument.CreateAttribute (localName, namespaceURI);
attr.Value = value;
Attributes.SetNamedItem (attr);
}
else
attr.Value = value;
return attr.Value;
}
public virtual XmlAttribute SetAttributeNode (XmlAttribute newAttr)
{
if (newAttr.OwnerElement != null)
throw new InvalidOperationException (
"Specified attribute is already an attribute of another element.");
XmlAttribute ret = Attributes.SetNamedItem (newAttr) as XmlAttribute;
return ret == newAttr ? null : ret;
}
public virtual XmlAttribute SetAttributeNode (string localName, string namespaceURI)
{
// Note that this constraint is only for this method.
// SetAttribute() allows prefixed name.
XmlConvert.VerifyNCName (localName);
return Attributes.Append (OwnerDocument.CreateAttribute (String.Empty, localName, namespaceURI, false, true));
}
public override void WriteContentTo (XmlWriter w)
{
int count = ChildNodes.Count;
for (int i = 0; i < count; i++)
ChildNodes [i].WriteTo (w);
}
public override void WriteTo (XmlWriter w)
{
w.WriteStartElement (NamespaceURI == null || NamespaceURI.Length == 0 ? String.Empty : Prefix, LocalName, NamespaceURI);
for (int i = 0; i < Attributes.Count; i++)
if (Attributes [i].Specified)
Attributes [i].WriteTo(w);
if (IsEmpty)
w.WriteEndElement ();
else {
WriteContentTo (w);
w.WriteFullEndElement ();
}
}
#endregion
}
}
|