void SmartPop(Tag tag)
{
//"""We need to pop up to the previous tag of this type, unless
//one of this tag's nesting reset triggers comes between this
//tag and the previous tag of this type, OR unless this tag is a
//generic nesting trigger and another generic nesting trigger
//comes between this tag and the previous tag of this type.
//Examples:
// <p>Foo<b>Bar *<p>* should pop to 'p', not 'b'.
// <p>Foo<table>Bar *<p>* should pop to 'table', not 'p'.
// <p>Foo<table><tr>Bar *<p>* should pop to 'tr', not 'p'.
// <li><ul><li> *<li>* should pop to 'ul', not the first 'li'.
// <tr><table><tr> *<tr>* should pop to 'table', not the first 'tr'
// <td><tr><td> *<td>* should pop to 'tr', not the first 'td'
//"""
IAllowsNestingSelf nestableTag = tag as IAllowsNestingSelf;
Tag popTo = null;
bool inclusive = true;
foreach (Tag t in TagStack)
{
if (t.TagName == tag.TagName && nestableTag == null)
{
popTo = tag;
break;
}
else if (nestableTag != null && nestableTag.NestingBreakers.Contains(t.GetType()) ||
(nestableTag == null && tag.ResetsNesting && t.ResetsNesting))
{
popTo = t;
inclusive = false;
break;
}
}
if (popTo != null)
{
PopToTag(popTo.TagName, inclusive);
}
}
void PushTag(Tag tag)
{
if (currentTag != null)
{
currentTag.AddChild(tag);
}
TagStack.Push(tag);
currentTag = TagStack.Peek();
}
void HandleStartEndTag(Tag tag)
{
HandleStartTag(tag);
HandleEndTag(tag.TagName);
}
void HandleStartTag(Tag tag)
{
if (quoteStack.Count > 0)
{
string attrs = string.Empty;
foreach (var attrib in tag.Attributes)
{
attrs += string.Format(CultureInfo.InvariantCulture, " {0}=\"{1}\"", attrib.Name, attrib.Value);
}
HandleData(string.Format(CultureInfo.InvariantCulture, "<{0}{1}>", tag.TagName, attrs));
}
if (!tag.IsSelfClosing)
{
SmartPop(tag);
}
tag.Parent = currentTag;
tag.Previous = Root.Previous;
if (Root.Previous != null)
{
Root.Previous.Next = tag;
}
Root.Previous = tag;
PushTag(tag);
if (tag.IsSelfClosing)
{
PopTag();
}
if (quoteTags.ContainsKey(tag.TagName))
{
quoteStack.Push(tag.TagName);
}
}
public Parser()
{
interesting = interestingNormal;
Root = Tag.Create("WBCore.DocumentObjectModelClasses.Root");
PushTag(Root);
}
