public string this[string attributeName]
{
get
{
XmlAttr a = FindAttr(attributeName);
if (a == null)
{
return(null);
}
return(a.value);
}
set
{
XmlAttr a = FindAttr(attributeName);
if (a == null)
{
a = new XmlAttr(attributeName, value);
attributes.Add(a);
}
else
{
a.value = value;
}
}
}
public void PrependAttribute(string name, string value)
{
if (attributes == null)
{
attributes = new XmlAttr[defaultAttributesCapacity];
}
else if (attributesUsed == attributes.Length)
{
XmlAttr[] dest = new XmlAttr[attributesUsed * 2];
for (int i = 0; i < attributesUsed; i++)
{
dest[i + 1] = attributes[i];
}
attributes = dest;
}
else
{
//shift everything up one
for (int i = attributesUsed; i > 0; i--)
{
attributes[i] = attributes[i - 1];
}
}
attributes[0] = new XmlAttr(name, value);
attributesUsed++;
}
public void AddAttribute(string name, string value)
{
if (attributes == null)
{
return;
}
XmlAttr a = new XmlAttr(name, value);
attributes.Add(a);
}
public void PrependAttribute(string name, string value)
{
if (attributes == null)
{
return;
}
XmlAttr a = new XmlAttr(name, value);
attributes.Insert(0, a);
}
//
// Safe access to attributes:
// since the kernel is going to use this object, we should
// push the error-checking into the object instead of risking
// the kernel forgetting to error check in some obscure method
//
public string GetAttribute(string attributeName, string defaultValue)
{
XmlAttr a = FindAttr(attributeName);
if (a == null)
{
return(defaultValue);
}
else
{
return(a.value);
}
}
public bool GetAttribute(string attributeName, bool defaultValue)
{
XmlAttr a = FindAttr(attributeName);
if (a == null)
{
return(defaultValue);
}
else
{
return(a.value ==
System.Boolean.TrueString);
}
}
public void AddAttribute(string name, string value)
{
if (attributes == null)
{
attributes = new XmlAttr[defaultAttributesCapacity];
}
else if (attributesUsed == attributes.Length)
{
XmlAttr[] dest = new XmlAttr[attributesUsed * 2];
for (int i = 0; i < attributesUsed; i++)
{
dest[i] = attributes[i];
}
attributes = dest;
}
attributes[attributesUsed++] = new XmlAttr(name, value);
}
public UIntPtr GetAttributeAsUIntPtr(string attributeName, UIntPtr defaultValue)
{
XmlAttr a = FindAttr(attributeName);
if (a == null)
{
return(defaultValue);
}
else
{
string num = a.value;
if (num.StartsWith("0x") || num.StartsWith("0X"))
{
return(System.UIntPtr.Parse(num, NumberStyles.AllowHexSpecifier));
}
else
{
return(System.UIntPtr.Parse(num));
}
}
}
