//TODO: implement real implicit closing logic from HTML5 spec
// see http://www.w3.org/html/wg/drafts/html/master/syntax.html#syntax-tag-omission
public static bool IsImplicitlyClosedBy(this XElement parent, INamedXObject current)
{
//inline and paragraph tags are implicitly closed by block tags and paragraph tags
if (ElementTypes.IsInline(parent.Name.Name) || ElementTypes.IsParagraph(parent.Name.Name))
{
return(ElementTypes.IsBlock(current.Name.Name) || ElementTypes.IsParagraph(current.Name.Name));
}
return(false);
}
public override State PushChar(char c, MonoDevelop.Xml.StateEngine.IParseContext context, ref string rollback)
{
//NOTE: This is (mostly) duplicated in HtmlTagState
//handle "paragraph" tags implicitly closed by block-level elements
if (context.CurrentStateLength == 1 && context.PreviousState is XmlNameState)
{
XClosingTag ct = (XClosingTag)context.Nodes.Peek();
//Note: the node stack will always be at least 1 deep due to the XDocument
XElement parent = context.Nodes.Peek(1) as XElement;
while (parent != null && parent.Name.IsValid && !parent.Name.HasPrefix && !ct.Name.HasPrefix &&
ct.Name.IsValid &&
string.Compare(ct.Name.Name, parent.Name.Name, StringComparison.OrdinalIgnoreCase) != 0 &&
!ElementTypes.IsInline(ct.Name.Name) &&
(ElementTypes.IsInline(parent.Name.Name) || ElementTypes.IsParagraph(parent.Name.Name))
)
{
context.Nodes.Pop();
context.Nodes.Pop();
if (warnAutoClose)
{
context.LogWarning(string.Format("Tag '{0}' implicitly closed by closing tag '{1}'.",
parent.Name.Name, ct.Name.Name), parent.Region);
}
//parent.Region.End = element.Region.Start;
//parent.Region.End.Column = Math.Max (parent.Region.End.Column - 1, 1);
parent.Close(parent);
context.Nodes.Push(ct);
parent = context.Nodes.Peek(1) as XElement;
}
}
return(base.PushChar(c, context, ref rollback));
}
public override State PushChar(char c, IParseContext context, ref string rollback)
{
if (context.CurrentStateLength == 0 && context.PreviousState is HtmlScriptBodyState)
{
return(Parent);
}
//NOTE: This is (mostly) duplicated in HtmlClosingTagState
//handle "paragraph" tags implicitly closed by block-level elements
if (context.CurrentStateLength == 1 && context.PreviousState is XmlNameState)
{
XElement element = (XElement)context.Nodes.Peek();
//Note: the node stack will always be at least 1 deep due to the XDocument
XElement parent = context.Nodes.Peek(1) as XElement;
while (parent != null && parent.Name.IsValid && !parent.Name.HasPrefix && !element.Name.HasPrefix &&
element.Name.IsValid &&
!ElementTypes.IsInline(element.Name.Name) &&
(ElementTypes.IsInline(parent.Name.Name) || ElementTypes.IsParagraph(parent.Name.Name))
)
{
context.Nodes.Pop();
context.Nodes.Pop();
if (warnAutoClose)
{
context.LogWarning(string.Format("Tag '{0}' implicitly closed by tag '{1}'.",
parent.Name.Name, element.Name.Name), parent.Region);
}
//parent.Region.End = element.Region.Start;
//parent.Region.End.Column = Math.Max (parent.Region.End.Column - 1, 1);
parent.Close(parent);
context.Nodes.Push(element);
parent = context.Nodes.Peek(1) as XElement;
}
}
State ret = base.PushChar(c, context, ref rollback);
if (ret == Parent && c == '>')
{
var element = context.Nodes.Peek() as XElement;
if (element != null && !element.Name.HasPrefix && element.Name.IsValid)
{
if (element.Name.Name.Equals("script", StringComparison.OrdinalIgnoreCase))
{
return(ScriptState);
}
else if (ElementTypes.IsEmpty(element.Name.Name))
{
element.Close(element);
context.Nodes.Pop();
if (warnAutoClose)
{
context.LogWarning(string.Format("Implicitly closed empty tag '{0}'", element.Name.Name),
element.Region);
}
}
}
}
return(ret);
}
