5 // Copyright 2007 Novell (http://www.novell.com)
7 // Permission is hereby granted, free of charge, to any person obtaining
8 // a copy of this software and associated documentation files (the
9 // "Software"), to deal in the Software without restriction, including
10 // without limitation the rights to use, copy, modify, merge, publish,
11 // distribute, sublicense, and/or sell copies of the Software, and to
12 // permit persons to whom the Software is furnished to do so, subject to
13 // the following conditions:
15 // The above copyright notice and this permission notice shall be
16 // included in all copies or substantial portions of the Software.
18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 using System.Collections;
29 using System.Collections.Generic;
34 using XPI = System.Xml.Linq.XProcessingInstruction;
36 namespace System.Xml.Linq
38 internal static class XUtil
40 public const string XmlnsNamespace =
41 "http://www.w3.org/2000/xmlns/";
44 public static string ToString (object o)
47 throw new InvalidOperationException ("Attempt to get string from null");
53 public static bool ToBoolean (object o)
55 throw new NotImplementedException ();
58 public static Nullable <bool> ToNullableBoolean (object o)
60 throw new NotImplementedException ();
63 public static IEnumerable ExpandArray (object o)
70 else if (o is IEnumerable)
71 foreach (object obj in (IEnumerable) o)
72 foreach (object oo in ExpandArray (obj))
78 public static XNode ToNode (object o)
81 throw new ArgumentException ("Attribute node is not allowed as argument");
86 return new XText ((string) o);
88 return new XText (o.ToString ());
91 public static object GetDetachedObject (XObject child)
93 return child.Owner != null ? Clone (child) : child;
96 public static object Clone (object o)
101 return new XAttribute ((XAttribute) o);
103 return new XElement ((XElement) o);
105 return new XCData ((XCData) o);
107 return new XComment ((XComment) o);
109 return new XPI ((XPI) o);
110 if (o is XDeclaration)
111 return new XDeclaration ((XDeclaration) o);
112 if (o is XDocumentType)
113 return new XDocumentType ((XDocumentType) o);
115 return new XText ((XText) o);
116 throw new ArgumentException ();