public override State PushChar(char c, IParseContext context, ref string rollback)
{
INamedXObject namedObject = context.Nodes.Peek() as INamedXObject;
if (namedObject == null || namedObject.Name.Prefix != null)
{
throw new InvalidOperationException("Invalid state");
}
Debug.Assert(context.CurrentStateLength > 1 || char.IsLetter(c) || c == '_',
"First character pushed to a XmlTagNameState must be a letter.");
Debug.Assert(context.CurrentStateLength > 1 || context.KeywordBuilder.Length == 0,
"Keyword builder must be empty when state begins.");
if (XmlChar.IsWhitespace(c) || c == '<' || c == '>' || c == '/' || c == '=')
{
rollback = string.Empty;
if (context.KeywordBuilder.Length == 0)
{
context.LogError("Zero-length name.");
}
else
{
string s = context.KeywordBuilder.ToString();
int i = s.IndexOf(':');
if (i < 0)
{
namedObject.Name = new XName(s);
}
else
{
namedObject.Name = new XName(s.Substring(0, i), s.Substring(i + 1));
}
}
return(Parent);
}
if (c == ':')
{
if (context.KeywordBuilder.ToString().IndexOf(':') > 0)
{
context.LogError("Unexpected ':' in name.");
}
context.KeywordBuilder.Append(c);
return(null);
}
if (XmlChar.IsNameChar(c))
{
context.KeywordBuilder.Append(c);
return(null);
}
rollback = string.Empty;
context.LogError("Unexpected character '" + c + "' in name");
return(Parent);
}
//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);
}
//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
switch (parent.Name.Name)
{
case "p":
return(ElementTypes.IsParaOptionalClosing(current.Name.Name));
case "td":
return(current.Name.Name == "td" || current.Name.Name == "th");
case "th":
return(current.Name.Name == "td" || current.Name.Name == "th");
case "dt":
return(current.Name.Name == "dt" || current.Name.Name == "dd");
case "dd":
return(current.Name.Name == "dt" || current.Name.Name == "dd");
case "thead":
return(current.Name.Name == "tbody" || current.Name.Name == "tfoot");
case "tbody":
return(current.Name.Name == "tbody" || current.Name.Name == "tfoot");
case "option":
return(current.Name.Name == "option" || current.Name.Name == "optgroup");
case "tr":
return(current.Name.Name == "tr");
case "li":
return(current.Name.Name == "li");
case "tfoot":
return(current.Name.Name == "tbody");
case "optgroup":
return(current.Name.Name == "optgroup");
default:
return(false);
}
}
void CheckDeprecated(ValueInfo info, INamedXObject namedObj)
{
if (info.IsDeprecated)
{
if (string.IsNullOrEmpty(info.DeprecationMessage))
{
Document.Diagnostics.Add(
CoreDiagnostics.Deprecated,
namedObj.NameSpan,
DescriptionFormatter.GetKindNoun(info),
info.Name);
}
else
{
Document.Diagnostics.Add(
CoreDiagnostics.DeprecatedWithMessage,
namedObj.NameSpan,
DescriptionFormatter.GetKindNoun(info),
info.Name,
info.DeprecationMessage
);
}
}
}
public override State PushChar(char c, IParseContext context, ref string rollback)
{
INamedXObject namedObject = context.Nodes.Peek() as INamedXObject;
if (namedObject == null || namedObject.Name.Prefix != null)
{
throw new InvalidOperationException("Invalid state");
}
Debug.Assert(context.CurrentStateLength > 1 || char.IsLetter(c) || c == '_',
"First character pushed to a XmlTagNameState must be a letter.");
Debug.Assert(context.CurrentStateLength > 1 || context.KeywordBuilder.Length == 0,
"Keyword builder must be empty when state begins.");
if (c == ':')
{
if (namedObject.Name.Name != null || context.KeywordBuilder.Length == 0)
{
context.LogError("Unexpected ':' in name.");
return(Parent);
}
namedObject.Name = new XName(context.KeywordBuilder.ToString());
context.KeywordBuilder.Length = 0;
return(null);
}
if (XmlChar.IsWhitespace(c) || c == '<' || c == '>' || c == '/' || c == '=')
{
rollback = string.Empty;
if (context.KeywordBuilder.Length == 0)
{
context.LogError("Zero-length name.");
}
else if (namedObject.Name.Name != null)
{
//add prefix (and move current "name" to prefix)
namedObject.Name = new XName(namedObject.Name.Name, context.KeywordBuilder.ToString());
}
else
{
namedObject.Name = new XName(context.KeywordBuilder.ToString());
}
//note: parent's MalformedTagState logs an error, so skip this
//if (c == '<')
//context.LogError ("Unexpected '<' in name.");
return(Parent);
}
if (c == ':')
{
if (namedObject.Name.Name != null || context.KeywordBuilder.Length == 0)
{
context.LogError("Unexpected ':' in name.");
return(Parent);
}
namedObject.Name = new XName(context.KeywordBuilder.ToString());
context.KeywordBuilder.Length = 0;
return(null);
}
if (XmlChar.IsNameChar(c))
{
context.KeywordBuilder.Append(c);
return(null);
}
rollback = string.Empty;
context.LogError("Unexpected character '" + c + "' in name");
return(Parent);
}
public static bool ValidAndNoPrefix(this INamedXObject element)
{
return(element != null && element.Name.IsValid && !element.Name.HasPrefix);
}
//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
switch (parent.Name.Name) {
case "p":
return ElementTypes.IsParaOptionalClosing (current.Name.Name);
case "td":
return current.Name.Name == "td" || current.Name.Name == "th";
case "th":
return current.Name.Name == "td" || current.Name.Name == "th";
case "dt":
return current.Name.Name == "dt" || current.Name.Name == "dd";
case "dd":
return current.Name.Name == "dt" || current.Name.Name == "dd";
case "thead":
return current.Name.Name == "tbody" || current.Name.Name == "tfoot";
case "tbody":
return current.Name.Name == "tbody" || current.Name.Name == "tfoot";
case "option":
return current.Name.Name == "option" || current.Name.Name == "optgroup";
case "tr":
return current.Name.Name == "tr";
case "li":
return current.Name.Name == "li";
case "tfoot":
return current.Name.Name == "tbody";
case "optgroup":
return current.Name.Name == "optgroup";
default :
return false;
}
}
public static bool NameEquals(this INamedXObject obj, string name, bool ignoreCase)
{
var comparison = ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
return(!obj.Name.HasPrefix && string.Equals(obj.Name.Name, name, comparison));
}
//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;
}