String IMarkupFormatter.Attribute(IAttr attr)
{
var namespaceUri = attr.NamespaceUri;
var localName = attr.LocalName;
var value = attr.Value;
var temp = Pool.NewStringBuilder();
if (String.IsNullOrEmpty(namespaceUri))
temp.Append(localName);
else if (namespaceUri == Namespaces.XmlUri)
temp.Append(Namespaces.XmlPrefix).Append(Symbols.Colon).Append(localName);
else if (namespaceUri == Namespaces.XLinkUri)
temp.Append(Namespaces.XLinkPrefix).Append(Symbols.Colon).Append(localName);
else if (namespaceUri == Namespaces.XmlNsUri)
temp.Append(XmlNamespaceLocalName(localName));
else
temp.Append(attr.Name);
temp.Append(Symbols.Equality).Append(Symbols.DoubleQuote);
for (int i = 0; i < value.Length; i++)
{
switch (value[i])
{
case Symbols.Ampersand: temp.Append("&"); break;
case Symbols.NoBreakSpace: temp.Append(" "); break;
case Symbols.DoubleQuote: temp.Append("""); break;
default: temp.Append(value[i]); break;
}
}
return temp.Append(Symbols.DoubleQuote).ToPool();
}
public IAttr SetNamedItem(IAttr item)
{
var proposed = Prepare(item);
if (proposed != null)
{
var name = item.Name;
for (int i = 0; i < _items.Count; i++)
{
if (name.Is(_items[i].Name))
{
var attr = _items[i];
_items[i] = proposed;
RaiseChangedEvent(proposed, proposed.Value, attr.Value);
return(attr);
}
}
_items.Add(proposed);
RaiseChangedEvent(proposed, proposed.Value, null);
}
return(null);
}
public IAttr SetNamedItemWithNamespaceUri(IAttr item)
{
var proposed = Prepare(item);
if (proposed != null)
{
var localName = item.LocalName;
var namespaceUri = item.NamespaceUri;
for (int i = 0; i < _items.Count; i++)
{
if (localName.Is(_items[i].LocalName) && namespaceUri.Is(_items[i].NamespaceUri))
{
var attr = _items[i];
_items[i] = proposed;
RaiseChangedEvent(proposed, proposed.Value, attr.Value);
return(attr);
}
}
_items.Add(proposed);
RaiseChangedEvent(proposed, proposed.Value, null);
}
return(null);
}
public IAttr SetNamedItemWithNamespaceUri(IAttr item)
{
var proposed = Prepare(item);
if (proposed != null)
{
var localName = item.LocalName;
var namespaceUri = item.NamespaceUri;
for (int i = 0; i < _items.Count; i++)
{
if (String.Equals(_items[i].LocalName, localName, StringComparison.Ordinal) &&
String.Equals(_items[i].NamespaceUri, namespaceUri, StringComparison.Ordinal))
{
var attr = _items[i];
_items[i] = proposed;
RaiseChangedEvent(proposed, proposed.Value, attr.Value);
return(attr);
}
}
_items.Add(proposed);
RaiseChangedEvent(proposed, proposed.Value, null);
}
return(null);
}
/// <summary>
/// Check if the value is a integer
/// </summary>
/// <param name="attr"></param>
/// <returns></returns>
public static bool IsValueInt(this IAttr attr)
{
int value = 0;
bool isInt = int.TryParse(attr.Value, out value);
return(isInt);
}
internal static void WriteAttributeName(IAttr attr, StringBuilder stringBuilder)
{
var namespaceUri = attr.NamespaceUri;
var localName = attr.LocalName;
if (String.IsNullOrEmpty(namespaceUri))
{
stringBuilder.Append(localName);
}
else if (namespaceUri.Is(NamespaceNames.XmlUri))
{
stringBuilder.Append(NamespaceNames.XmlPrefix).Append(Symbols.Colon).Append(localName);
}
else if (namespaceUri.Is(NamespaceNames.XLinkUri))
{
stringBuilder.Append(NamespaceNames.XLinkPrefix).Append(Symbols.Colon).Append(localName);
}
else if (namespaceUri.Is(NamespaceNames.XmlNsUri))
{
stringBuilder.Append(XmlNamespaceLocalName(localName));
}
else
{
stringBuilder.Append(attr.Name);
}
}
public void Deserialize(IAttr attr, StreamWriter streamWriter)
{
IAttrContainer container = (attr as Attr <AttrContainer>).Value;
streamWriter.WriteLine($"{{{attr.Name}:{attr.Type}:}}");
Deserialize(container, streamWriter);
streamWriter.WriteLine($"}}");
}
public static String GetAbsUrl(this IAttr attr, string origin)
{
try
{
return(new Uri(new Uri(origin), attr.Value).ToString());
}
catch
{
return(attr.Value);
}
}
/// <summary>
/// Checks if the attribute name starts with a string
/// </summary>
/// <param name="attr"></param>
/// <param name="strData"></param>
/// <returns></returns>
public static bool NameStartsWith(this IAttr attr, string startString, bool ignoreCase = false)
{
if (ignoreCase)
{
return(attr.Name.StartsWith(startString, StringComparison.InvariantCultureIgnoreCase));
}
else
{
return(attr.Name.StartsWith(startString));
}
}
/// <summary>
/// Removes an attribute from the document.
/// </summary>
/// <param name="tag">Tag the attribute belongs to</param>
/// <param name="attribute">Attribute to be removed</param>
/// <param name="reason">Reason for removal</param>
private void RemoveAttribute(IElement tag, IAttr attribute, RemoveReason reason)
{
var e = new RemovingAttributeEventArgs {
Tag = tag, Attribute = attribute, Reason = reason
};
OnRemovingAttribute(e);
if (!e.Cancel)
{
tag.RemoveAttribute(attribute.Name);
}
}
public async Task Have_ExpandMode_Attribute_SetToMulti_ByDefault()
{
// Arrange
IRenderedComponent <BfAccordion> cut = RenderComponent <BfAccordion>();
// Asset
IAttr attr = cut.Find(FastHtmlElements.FastAccordion)
.Attributes
.GetNamedItem(FastHtmlElements.FastAccordionAttributes.ExpandMode);
attr.Should().NotBeNull();
}
public async Task Have_ExpandMode_Attribute_SetToSingle_WhenConfiguredSo()
{
// Arrange
IRenderedComponent <BfAccordion> cut = RenderComponent <BfAccordion>(
p => p.Add(pp => pp.ExpandMode, BfComponentApis.BfAccordion.ExpandModeValues.Single));
// Asset
IAttr attr = cut.Find(FastHtmlElements.FastAccordion)
.Attributes
.GetNamedItem(FastHtmlElements.FastAccordionAttributes.ExpandMode);
attr.Should().NotBeNull();
}
public async Task BeOpened_WhenConfiguredSo()
{
// Arrange
IRenderedComponent <BfAccordion> cut = RenderComponent <BfAccordion>(
p => p.AddChildContent <BfAccordionItem>(pp => pp.Add(
ppp => ppp.IsExpanded, true)));
// Assert
IAttr attr = cut.Find($"{FastHtmlElements.FastAccordion}>{FastHtmlElements.FastAccordionItem}")
.Attributes
.GetNamedItem("expanded");
attr.Should().NotBeNull();
}
public async Task SplatUnknownParameters()
{
// Arrange
IRenderedComponent <BfAccordion> cut = RenderComponent <BfAccordion>(
("custom", "value"));
// Assert
IAttr attr = cut.Find(FastHtmlElements.FastAccordion)
.Attributes
.GetNamedItem("custom");
attr.Should().NotBeNull();
attr.Value.Should().Be("value");
}
// disable XML comments warnings
#pragma warning disable 1591
public virtual string Attribute(IAttr attribute)
{
var namespaceUri = attribute.NamespaceUri;
var localName = attribute.LocalName;
var value = attribute.Value;
var temp = new StringBuilder();
if (String.IsNullOrEmpty(namespaceUri))
{
temp.Append(localName);
}
else if (namespaceUri == NamespaceNames.XmlUri)
{
temp.Append(NamespaceNames.XmlPrefix).Append(':').Append(localName);
}
else if (namespaceUri == NamespaceNames.XLinkUri)
{
temp.Append(NamespaceNames.XLinkPrefix).Append(':').Append(localName);
}
else if (namespaceUri == NamespaceNames.XmlNsUri)
{
temp.Append(XmlNamespaceLocalName(localName));
}
else
{
temp.Append(attribute.Name);
}
temp.Append('=').Append('"');
for (var i = 0; i < value.Length; i++)
{
switch (value[i])
{
case '&': temp.Append("&"); break;
case '\u00a0': temp.Append(" "); break;
case '"': temp.Append("""); break;
case '<': temp.Append("<"); break;
case '>': temp.Append(">"); break;
default: temp.Append(value[i]); break;
}
}
return(temp.Append('"').ToString());
}
public bool Equals(IAttr other)
{
if (object.ReferenceEquals(this, other))
{
return(true);
}
if (other == null)
{
return(false);
}
return(property == ((ElementAttributeBase <TDependencyObject, TDependencyProperty>)other).property);
}
/// <summary>
/// Creates the string representation of the attribute.
/// </summary>
/// <param name="attr">The attribute to serialize.</param>
/// <returns>The string representation.</returns>
protected virtual String Attribute(IAttr attr)
{
var temp = StringBuilderPool.Obtain();
WriteAttributeName(attr, temp);
if (attr.Value != null)
{
temp.Append(Symbols.Equality).Append(Symbols.DoubleQuote);
WriteAttributeValue(attr, temp);
return(temp.Append(Symbols.DoubleQuote).ToPool());
}
return(temp.ToPool());
}
String IMarkupFormatter.Attribute(IAttr attribute)
{
var namespaceUri = attribute.NamespaceUri;
var localName = attribute.LocalName;
var value = attribute.Value;
var temp = StringBuilderPool.Obtain();
if (String.IsNullOrEmpty(namespaceUri))
{
temp.Append(localName);
}
else if (namespaceUri.Is(NamespaceNames.XmlUri))
{
temp.Append(NamespaceNames.XmlPrefix).Append(Symbols.Colon).Append(localName);
}
else if (namespaceUri.Is(NamespaceNames.XLinkUri))
{
temp.Append(NamespaceNames.XLinkPrefix).Append(Symbols.Colon).Append(localName);
}
else if (namespaceUri.Is(NamespaceNames.XmlNsUri))
{
temp.Append(XmlNamespaceLocalName(localName));
}
else
{
temp.Append(attribute.Name);
}
temp.Append(Symbols.Equality).Append(Symbols.DoubleQuote);
for (var i = 0; i < value.Length; i++)
{
switch (value[i])
{
case Symbols.Ampersand: temp.Append("&"); break;
case Symbols.NoBreakSpace: temp.Append(" "); break;
case Symbols.LessThan: temp.Append("<"); break;
case Symbols.DoubleQuote: temp.Append("""); break;
default: temp.Append(value[i]); break;
}
}
return(temp.Append(Symbols.DoubleQuote).ToPool());
}
public async Task Splat_UnknownParameters()
{
// Arrange
IRenderedComponent <BfAccordion> cut = RenderComponent <BfAccordion>(
p => p.AddChildContent <BfAccordionItem>(
ppp => ppp.AddUnmatched("custom", "value")
));
// Assert
IAttr attr = cut.Find($"{FastHtmlElements.FastAccordion}>{FastHtmlElements.FastAccordionItem}")
.Attributes
.GetNamedItem("custom");
attr.Should().NotBeNull();
attr.Value.Should().Be("value");
}
public string Attribute(IAttr attr)
{
var namespaceUri = attr.NamespaceUri;
var localName = attr.LocalName;
var value = attr.Value;
var sb = new StringBuilder();
if (string.IsNullOrEmpty(namespaceUri))
{
sb.Append(localName);
}
else if (Is(namespaceUri, NamespaceNames.XmlUri))
{
sb.Append(NamespaceNames.XmlPrefix).Append(':').Append(localName);
}
else if (Is(namespaceUri, NamespaceNames.XLinkUri))
{
sb.Append(NamespaceNames.XLinkPrefix).Append(':').Append(localName);
}
else if (Is(namespaceUri, NamespaceNames.XmlNsUri))
{
sb.Append(XmlNamespaceLocalName(localName));
}
else
{
sb.Append(attr.Name);
}
sb.Append('=').Append('"');
for (var i = 0; i < value.Length; i++)
{
switch (value[i])
{
// Change: Don't do this as we aren't decoding incoming entities
// case '&': temp.Append("&"); break;
case '\xA0': sb.Append(" "); break;
case '"': sb.Append("""); break;
default: sb.Append(value[i]); break;
}
}
return(sb.Append('"').ToString());
}
public virtual IAttr SetAttributeNode(IAttr newAttr)
{
if (newAttr == null)
{
return(null);
}
if (!(newAttr is DomAttrImpl))
{
throw new DomException(DomException.WRONG_DOCUMENT, "newAttr not instanceof DomAttrImpl");
}
var newatt = (DomAttrImpl)newAttr;
string name = newatt.AttValAdaptee.Attribute;
IAttr result = null;
AttVal att = Adaptee.Attributes;
while (att != null)
{
if (att.Attribute.Equals(name))
{
break;
}
att = att.Next;
}
if (att != null)
{
result = att.Adapter;
att.Adapter = newAttr;
}
else
{
if (Adaptee.Attributes == null)
{
Adaptee.Attributes = newatt.AttValAdaptee;
}
else
{
newatt.AttValAdaptee.Next = Adaptee.Attributes;
Adaptee.Attributes = newatt.AttValAdaptee;
}
}
return(result);
}
internal static void WriteAttributeValue(IAttr attr, StringBuilder stringBuilder)
{
var value = attr.Value ?? String.Empty;
for (var i = 0; i < value.Length; i++)
{
switch (value[i])
{
case Symbols.Ampersand: stringBuilder.Append("&"); break;
case Symbols.NoBreakSpace: stringBuilder.Append(" "); break;
case Symbols.DoubleQuote: stringBuilder.Append("""); break;
default: stringBuilder.Append(value[i]); break;
}
}
}
Attr Prepare(IAttr item)
{
var attr = item as Attr;
if (attr != null)
{
if (attr.Container == this)
{
return(null);
}
else if (attr.Container != null)
{
throw new DomException(DomError.InUse);
}
attr.Container = this;
}
return(attr);
}
public static async Task <AttrData> Instantiate(IAttr attr)
{
var plainConstraints = await attr.GetConstraints();
var dataType = await attr.GetDataType();
var plainValues = await attr.GetValueCandidates();
var values =
from v in plainValues
select new AttrValueData(v.EventValue.ID, v.EventValue.Value);
return(new AttrData {
ID = attr.PropertyID,
Label = attr.Label,
DataType = dataType,
IsBoxed = dataType.IsBoxed,
Values = values
});
}
Attr Prepare(IAttr item)
{
var attr = item as Attr;
if (attr != null)
{
if (Object.ReferenceEquals(attr.Container, this))
{
return(null);
}
else if (attr.Container != null)
{
throw new DomException(DomError.InUse);
}
attr.Container = this;
}
return(attr);
}
String IMarkupFormatter.Attribute(IAttr attribute)
{
var value = attribute.Value;
var temp = Pool.NewStringBuilder();
temp.Append(attribute.Name);
temp.Append(Symbols.Equality).Append(Symbols.DoubleQuote);
for (int i = 0; i < value.Length; i++)
{
switch (value[i])
{
case Symbols.SingleQuote: temp.Append("'"); break;
case Symbols.DoubleQuote: temp.Append("""); break;
default: temp.Append(value[i]); break;
}
}
return(temp.Append(Symbols.DoubleQuote).ToPool());
}
public virtual IAttr RemoveAttributeNode(IAttr oldAttr)
{
if (oldAttr == null)
{
return(null);
}
IAttr result;
AttVal att = Adaptee.Attributes;
AttVal pre = null;
while (att != null)
{
if (att.Adapter == oldAttr)
{
break;
}
pre = att;
att = att.Next;
}
if (att != null)
{
if (pre == null)
{
Adaptee.Attributes = att.Next;
}
else
{
pre.Next = att.Next;
}
result = oldAttr;
}
else
{
throw new DomException(DomException.NOT_FOUND, "oldAttr not found");
}
return(result);
}
String IMarkupFormatter.Attribute(IAttr attribute)
{
var value = attribute.Value;
var temp = StringBuilderPool.Obtain();
temp.Append(attribute.Name);
temp.Append(Symbols.Equality).Append(Symbols.DoubleQuote);
for (var i = 0; i < value.Length; i++)
{
switch (value[i])
{
case Symbols.Ampersand: temp.Append("&"); break;
case Symbols.LessThan: temp.Append("<"); break;
case Symbols.DoubleQuote: temp.Append("""); break;
default: temp.Append(value[i]); break;
}
}
return(temp.Append(Symbols.DoubleQuote).ToPool());
}
public IAttr SetNamedItem(IAttr item)
{
var proposed = Prepare(item);
if (proposed != null)
{
var name = item.Name;
for (var i = 0; i < _items.Count; i++)
{
if (name.Is(_items[i].Name))
{
var attr = _items[i];
_items[i] = proposed;
RaiseChangedEvent(proposed, proposed.Value, attr.Value);
return attr;
}
}
_items.Add(proposed);
RaiseChangedEvent(proposed, proposed.Value, null);
}
return null;
}
/// <summary>
/// Compares the given attribute to the current one.
/// </summary>
/// <param name="other">The attibute to compare to.</param>
/// <returns>
/// True if both attributes are equal, otherwise false.
/// </returns>
public Boolean Equals(IAttr other)
{
return (String.Equals(Prefix, other.Prefix, StringComparison.Ordinal) &&
String.Equals(NamespaceUri, other.NamespaceUri, StringComparison.Ordinal) &&
String.Equals(Value, other.Value, StringComparison.Ordinal));
}
Attr Prepare(IAttr item)
{
var attr = item as Attr;
if (attr != null)
{
if (attr.Container == this)
return null;
else if (attr.Container != null)
throw new DomException(DomError.InUse);
attr.Container = this;
}
return attr;
}
public IAttr SetNamedItemWithNamespaceUri(IAttr item)
{
var proposed = Prepare(item);
if (proposed != null)
{
var localName = item.LocalName;
var namespaceUri = item.NamespaceUri;
for (int i = 0; i < _items.Count; i++)
{
if (String.Equals(_items[i].LocalName, localName, StringComparison.Ordinal) &&
String.Equals(_items[i].NamespaceUri, namespaceUri, StringComparison.Ordinal))
{
var attr = _items[i];
_items[i] = proposed;
RaiseChangedEvent(proposed, proposed.Value, attr.Value);
return attr;
}
}
_items.Add(proposed);
RaiseChangedEvent(proposed, proposed.Value, null);
}
return null;
}
public IAttr SetNamedItemWithNamespaceUri(IAttr item, Boolean suppressMutationObservers)
{
var proposed = Prepare(item);
if (proposed != null)
{
var localName = item.LocalName;
var namespaceUri = item.NamespaceUri;
for (var i = 0; i < _items.Count; i++)
{
if (localName.Is(_items[i].LocalName) && namespaceUri.Is(_items[i].NamespaceUri))
{
var attr = _items[i];
_items[i] = proposed;
if (!suppressMutationObservers)
{
RaiseChangedEvent(proposed, proposed.Value, attr.Value);
}
return attr;
}
}
_items.Add(proposed);
if (!suppressMutationObservers)
{
RaiseChangedEvent(proposed, proposed.Value, null);
}
}
return null;
}
/// <summary>
/// Remove an attribute from the document.
/// </summary>
/// <param name="tag">tag where the attribute to belongs</param>
/// <param name="attribute">to be removed</param>
/// <param name="reason">reason why to be removed</param>
private void RemoveAttribute(IElement tag, IAttr attribute, RemoveReason reason)
{
var e = new RemovingAttributeEventArgs { Tag = tag, Attribute = attribute, Reason = reason };
OnRemovingAttribute(e);
if (!e.Cancel) tag.RemoveAttribute(attribute.Name);
}
/// <summary>
/// Initializes a new instance of the <see cref="RemovingAttributeEventArgs"/> class.
/// </summary>
/// <param name="tag">The element containing the attribute.</param>
/// <param name="attribute">The attribute to be removed.</param>
/// <param name="reason">The reason why the attribute will be removed.</param>
public RemovingAttributeEventArgs(IElement tag, IAttr attribute, RemoveReason reason)
{
Tag = tag;
Attribute = attribute;
Reason = reason;
}
/// <summary>
/// Determines whether the specified attribute can contain a URI.
/// </summary>
/// <param name="attribute">The attribute.</param>
/// <returns><c>true</c> if the attribute can contain a URI; otherwise, <c>false</c>.</returns>
private bool IsUriAttribute(IAttr attribute)
{
return(UriAttributes.Contains(attribute.Name));
}
public IAttr SetNamedItemWithNamespaceUri(IAttr item)
{
return SetNamedItemWithNamespaceUri(item, false);
}
String IMarkupFormatter.Attribute(IAttr attribute)
{
return HtmlMarkupFormatter.Instance.Attribute(attribute);
}
String IMarkupFormatter.Attribute(IAttr attribute)
{
var value = attribute.Value;
var temp = Pool.NewStringBuilder();
temp.Append(attribute.Name);
temp.Append(Symbols.Equality).Append(Symbols.DoubleQuote);
for (int i = 0; i < value.Length; i++)
{
switch (value[i])
{
case Symbols.Ampersand: temp.Append("&"); break;
case Symbols.LessThan: temp.Append("<"); break;
case Symbols.DoubleQuote: temp.Append("""); break;
default: temp.Append(value[i]); break;
}
}
return temp.Append(Symbols.DoubleQuote).ToPool();
}
/// <summary>
/// Determines whether the specified attribute can contain a URI.
/// </summary>
/// <param name="attribute">The attribute.</param>
/// <returns><c>true</c> if the attribute can contain a URI; otherwise, <c>false</c>.</returns>
private bool IsUriAttribute(IAttr attribute)
{
return UriAttributes.Contains(attribute.Name);
}
/// <summary> DOM2 - not implemented. </summary>
public virtual IAttr SetAttributeNodeNs(IAttr newAttr)
{
return null;
}
/// <summary>
/// Formats an attribute specified by the argument.
/// </summary>
/// <param name="attribute">The attribute to serialize.</param>
/// <returns>The formatted attribute.</returns>
public String Attribute(IAttr attribute)
{
return ChildFormatter.Attribute(attribute);
}
Attr Prepare(IAttr item)
{
var attr = item as Attr;
if (attr != null)
{
if (Object.ReferenceEquals(attr.Container, this))
{
return null;
}
else if (attr.Container != null)
{
throw new DomException(DomError.InUse);
}
attr.Container = this;
}
return attr;
}
public Boolean Equals(IAttr other)
{
return Prefix.Is(other.Prefix) && NamespaceUri.Is(other.NamespaceUri) && Value.Is(other.Value);
}
public virtual IAttr SetAttributeNode(IAttr newAttr)
{
if (newAttr == null)
{
return null;
}
if (!(newAttr is DomAttrImpl))
{
throw new DomException(DomException.WRONG_DOCUMENT, "newAttr not instanceof DomAttrImpl");
}
var newatt = (DomAttrImpl) newAttr;
string name = newatt.AttValAdaptee.Attribute;
IAttr result = null;
AttVal att = Adaptee.Attributes;
while (att != null)
{
if (att.Attribute.Equals(name))
{
break;
}
att = att.Next;
}
if (att != null)
{
result = att.Adapter;
att.Adapter = newAttr;
}
else
{
if (Adaptee.Attributes == null)
{
Adaptee.Attributes = newatt.AttValAdaptee;
}
else
{
newatt.AttValAdaptee.Next = Adaptee.Attributes;
Adaptee.Attributes = newatt.AttValAdaptee;
}
}
return result;
}
public virtual IAttr RemoveAttributeNode(IAttr oldAttr)
{
if (oldAttr == null)
{
return null;
}
IAttr result;
AttVal att = Adaptee.Attributes;
AttVal pre = null;
while (att != null)
{
if (att.Adapter == oldAttr)
{
break;
}
pre = att;
att = att.Next;
}
if (att != null)
{
if (pre == null)
{
Adaptee.Attributes = att.Next;
}
else
{
pre.Next = att.Next;
}
result = oldAttr;
}
else
{
throw new DomException(DomException.NOT_FOUND, "oldAttr not found");
}
return result;
}
/// <summary>
/// Determines whether the specified attribute is allowed.
/// </summary>
/// <param name="attribute">The attribute.</param>
/// <returns><c>true</c> if the attribute is allowed; otherwise, <c>false</c>.</returns>
private bool IsAllowedAttribute(IAttr attribute)
{
return(AllowedAttributes.Contains(attribute.Name)
// test html5 data- attributes
|| (AllowDataAttributes && attribute.Name != null && attribute.Name.StartsWith("data-", StringComparison.OrdinalIgnoreCase)));
}
/// <summary>
/// Determines whether the specified attribute is allowed.
/// </summary>
/// <param name="attribute">The attribute.</param>
/// <returns><c>true</c> if the attribute is allowed; otherwise, <c>false</c>.</returns>
private bool IsAllowedAttribute(IAttr attribute)
{
return AllowedAttributes.Contains(attribute.Name)
// test html5 data- attributes
|| (AllowDataAttributes && attribute.Name != null && attribute.Name.StartsWith("data-", StringComparison.OrdinalIgnoreCase));
}