//
// Authors:
// Atsushi Enomoto
//
// Copyright 2007 Novell (http://www.novell.com)
//
// 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.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
using System.Xml;
using XPISystem.Xml.Linq.XProcessingInstruction;
namespace System.Xml.Linq{
internal static class XUtil
{
public const string XmlnsNamespace =
"http://www.w3.org/2000/xmlns/";
public static bool ConvertToBoolean (string s)
{
return XmlConvert.ToBoolean (s.ToLower (CultureInfo.InvariantCulture));
}
public static DateTime ToDateTime (string s)
{
try {
return XmlConvert.ToDateTime (s, XmlDateTimeSerializationMode.RoundtripKind);
} catch {
return DateTime.Parse (s);
}
}
public static string ToString (object o)
{
if (o == null)
throw new InvalidOperationException ("Attempt to get string from null");
switch (Type.GetTypeCode (o.GetType ())) {
case TypeCode.String:
return (string) o;
case TypeCode.DateTime:
return XmlConvert.ToString ((DateTime) o, XmlDateTimeSerializationMode.RoundtripKind);
case TypeCode.Double:
return ((double) o).ToString ("r");
case TypeCode.Single:
return ((float) o).ToString ("r");
case TypeCode.Boolean:
// Valid XML values are `true' and `false', not `True' and `False' that boolean returns
return o.ToString().ToLower();
default:
if (o is TimeSpan)
return XmlConvert.ToString ((TimeSpan) o);
if (o is DateTimeOffset)
return XmlConvert.ToString ((DateTimeOffset) o);
return o.ToString ();
}
}
public static bool ToBoolean (object o)
{
throw new NotImplementedException ();
}
public static Nullable <bool> ToNullableBoolean (object o)
{
throw new NotImplementedException ();
}
public static IEnumerable ExpandArray (object o)
{
XNode n = o as XNode;
if (n != null)
yield return n;
else if (o is string)
yield return o;
else if (o is IEnumerable)
foreach (object obj in (IEnumerable) o)
foreach (object oo in ExpandArray (obj))
yield return oo;
else
yield return o;
}
public static XNode ToNode (object o)
{
if (o is XAttribute)
throw new ArgumentException ("Attribute node is not allowed as argument");
XNode n = o as XNode;
if (n != null)
return n;
else if (o is string)
return new XText ((string) o);
else
return new XText (ToString (o));
}
public static object GetDetachedObject (XObject child)
{
return child.Owner != null ? Clone (child) : child;
}
public static object Clone (object o)
{
if (o is string)
return (string) o;
if (o is XAttribute)
return new XAttribute ((XAttribute) o);
if (o is XElement)
return new XElement ((XElement) o);
if (o is XCData)
return new XCData ((XCData) o);
if (o is XComment)
return new XComment ((XComment) o);
if (o is XPI)
return new XPI ((XPI) o);
if (o is XDeclaration)
return new XDeclaration ((XDeclaration) o);
if (o is XDocumentType)
return new XDocumentType ((XDocumentType) o);
if (o is XText)
return new XText ((XText) o);
throw new ArgumentException ();
}
}
}
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