/// <summary>
/// Before any doctype - still in the prolog. No declaration
/// allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void BeforeDoctype(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.Doctype:
{
var doctypeToken = (XmlDoctypeToken)token;
var doctypeNode = new DocumentType(_document, doctypeToken.Name)
{
SystemIdentifier = doctypeToken.SystemIdentifier,
PublicIdentifier = doctypeToken.PublicIdentifier
};
_document.AppendChild(doctypeNode);
_currentMode = XmlTreeMode.Misc;
break;
}
default:
{
InMisc(token);
break;
}
}
}
/// <summary>
/// After the body state - nothing except Comment PI S allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void AfterBody(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.ProcessingInstruction:
case XmlTokenType.Comment:
{
InMisc(token);
break;
}
case XmlTokenType.EndOfFile:
{
break;
}
default:
{
if (!token.IsIgnorable && !_options.IsSuppressingErrors)
{
throw XmlParseError.XmlMissingRoot.At(token.Position);
}
break;
}
}
}
/// <summary>
/// Consumes a token and processes it.
/// </summary>
/// <param name="token">The token to consume.</param>
void Consume(XmlToken token)
{
switch (_currentMode)
{
case XmlTreeMode.Initial:
Initial(token);
break;
case XmlTreeMode.Prolog:
BeforeDoctype(token);
break;
case XmlTreeMode.Misc:
InMisc(token);
break;
case XmlTreeMode.Body:
InBody(token);
break;
case XmlTreeMode.After:
AfterBody(token);
break;
}
}
/// <summary>
/// In the body state - no doctypes and declarations allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void InMisc(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.Comment:
{
var commenToken = (XmlCommentToken)token;
var commentNode = _document.CreateComment(commenToken.Data);
CurrentNode.AppendChild(commentNode);
break;
}
case XmlTokenType.ProcessingInstruction:
{
var piToken = (XmlPIToken)token;
var piNode = _document.CreateProcessingInstruction(piToken.Target, piToken.Content);
CurrentNode.AppendChild(piNode);
break;
}
case XmlTokenType.StartTag:
{
_currentMode = XmlTreeMode.Body;
InBody(token);
break;
}
default:
{
if (!token.IsIgnorable && !_options.IsSuppressingErrors)
{
throw XmlParseError.XmlMissingRoot.At(token.Position);
}
break;
}
}
}
/// <summary>
/// The initial state. Expects an XML declaration.
/// </summary>
/// <param name="token">The consumed token.</param>
void Initial(XmlToken token)
{
if (token.Type == XmlTokenType.Declaration)
{
var declarationToken = (XmlDeclarationToken)token;
_standalone = declarationToken.Standalone;
if (!declarationToken.IsEncodingMissing)
{
SetEncoding(declarationToken.Encoding);
}
if (!CheckVersion(declarationToken.Version) && !_options.IsSuppressingErrors)
{
throw XmlParseError.XmlDeclarationVersionUnsupported.At(token.Position);
}
}
else
{
_currentMode = XmlTreeMode.Prolog;
BeforeDoctype(token);
}
}
/// <summary>
/// In the body state - no doctypes and declarations allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void InBody(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.StartTag:
{
var tagToken = (XmlTagToken)token;
var element = _creator.Invoke(_document, tagToken.Name, null);
CurrentNode.AppendChild(element);
if (!tagToken.IsSelfClosing)
{
_openElements.Add(element);
}
else if (_openElements.Count == 0)
{
_currentMode = XmlTreeMode.After;
}
for (var i = 0; i < tagToken.Attributes.Count; i++)
{
var name = tagToken.Attributes[i].Key;
var value = tagToken.Attributes[i].Value.Trim();
element.SetAttribute(name, value);
}
if (_options.OnCreated != null)
{
_options.OnCreated.Invoke(element, tagToken.Position);
}
break;
}
case XmlTokenType.EndTag:
{
var tagToken = (XmlTagToken)token;
if (!CurrentNode.NodeName.Is(tagToken.Name))
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.TagClosingMismatch.At(token.Position);
}
_openElements.RemoveAt(_openElements.Count - 1);
if (_openElements.Count == 0)
{
_currentMode = XmlTreeMode.After;
}
break;
}
case XmlTokenType.ProcessingInstruction:
case XmlTokenType.Comment:
{
InMisc(token);
break;
}
case XmlTokenType.CData:
{
var cdataToken = (XmlCDataToken)token;
CurrentNode.AppendText(cdataToken.Data);
break;
}
case XmlTokenType.Character:
{
var charToken = (XmlCharacterToken)token;
CurrentNode.AppendText(charToken.Data);
break;
}
case XmlTokenType.EndOfFile:
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.EOF.At(token.Position);
}
case XmlTokenType.Doctype:
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.XmlDoctypeAfterContent.At(token.Position);
}
case XmlTokenType.Declaration:
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.XmlDeclarationMisplaced.At(token.Position);
}
}
}
/// <summary>
/// After the body state - nothing except Comment PI S allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void AfterBody(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.ProcessingInstruction:
case XmlTokenType.Comment:
{
InMisc(token);
break;
}
case XmlTokenType.EndOfFile:
{
break;
}
default:
{
if (!token.IsIgnorable)
throw XmlParseError.XmlMissingRoot.At(token.Position);
break;
}
}
}
/// <summary>
/// In the body state - no doctypes and declarations allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void InBody(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.StartTag:
{
var tok = (XmlTagToken)token;
var tag = new XmlElement(_document, tok.Name);
CurrentNode.AppendChild(tag);
if (!tok.IsSelfClosing)
{
_openElements.Add(tag);
}
else if (_openElements.Count == 0)
{
_currentMode = XmlTreeMode.After;
}
for (int i = 0; i < tok.Attributes.Count; i++)
{
tag.SetAttribute(tok.Attributes[i].Key, tok.Attributes[i].Value.Trim());
}
break;
}
case XmlTokenType.EndTag:
{
var tok = (XmlTagToken)token;
if (CurrentNode.NodeName != tok.Name)
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.TagClosingMismatch.At(token.Position);
}
_openElements.RemoveAt(_openElements.Count - 1);
if (_openElements.Count == 0)
{
_currentMode = XmlTreeMode.After;
}
break;
}
case XmlTokenType.ProcessingInstruction:
case XmlTokenType.Comment:
{
InMisc(token);
break;
}
case XmlTokenType.CData:
{
var tok = (XmlCDataToken)token;
CurrentNode.AppendText(tok.Data);
break;
}
case XmlTokenType.Character:
{
var tok = (XmlCharacterToken)token;
CurrentNode.AppendText(tok.Data);
break;
}
case XmlTokenType.EndOfFile:
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.EOF.At(token.Position);
}
case XmlTokenType.Doctype:
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.XmlDoctypeAfterContent.At(token.Position);
}
case XmlTokenType.Declaration:
{
if (_options.IsSuppressingErrors)
{
break;
}
throw XmlParseError.XmlDeclarationMisplaced.At(token.Position);
}
}
}
/// <summary>
/// In the body state - no doctypes and declarations allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void InBody(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.StartTag:
{
var tok = (XmlTagToken)token;
var tag = new XmlElement(_document, tok.Name);
CurrentNode.AppendChild(tag);
if (!tok.IsSelfClosing)
_openElements.Add(tag);
else if(_openElements.Count == 0)
_currentMode = XmlTreeMode.After;
for (int i = 0; i < tok.Attributes.Count; i++)
tag.SetAttribute(tok.Attributes[i].Key, tok.Attributes[i].Value.Trim());
break;
}
case XmlTokenType.EndTag:
{
var tok = (XmlTagToken)token;
if (CurrentNode.NodeName != tok.Name)
throw XmlParseError.TagClosingMismatch.At(token.Position);
_openElements.RemoveAt(_openElements.Count - 1);
if (_openElements.Count == 0)
_currentMode = XmlTreeMode.After;
break;
}
case XmlTokenType.ProcessingInstruction:
case XmlTokenType.Comment:
{
InMisc(token);
break;
}
case XmlTokenType.Entity:
{
var tok = (XmlEntityToken)token;
var str = tok.GetEntity();
CurrentNode.AppendText(str);
break;
}
case XmlTokenType.CData:
{
var tok = (XmlCDataToken)token;
CurrentNode.AppendText(tok.Data);
break;
}
case XmlTokenType.Character:
{
var tok = (XmlCharacterToken)token;
CurrentNode.AppendText(tok.Data.ToString());
break;
}
case XmlTokenType.EndOfFile:
{
throw XmlParseError.EOF.At(token.Position);
}
case XmlTokenType.Doctype:
{
throw XmlParseError.XmlDoctypeAfterContent.At(token.Position);
}
case XmlTokenType.Declaration:
{
throw XmlParseError.XmlDeclarationMisplaced.At(token.Position);
}
}
}
/// <summary>
/// In the body state - no doctypes and declarations allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void InMisc(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.Comment:
{
var tok = (XmlCommentToken)token;
var com = _document.CreateComment(tok.Data);
CurrentNode.AppendChild(com);
break;
}
case XmlTokenType.ProcessingInstruction:
{
var tok = (XmlPIToken)token;
var pi = _document.CreateProcessingInstruction(tok.Target, tok.Content);
CurrentNode.AppendChild(pi);
break;
}
case XmlTokenType.StartTag:
{
_currentMode = XmlTreeMode.Body;
InBody(token);
break;
}
default:
{
if (!token.IsIgnorable)
throw XmlParseError.XmlMissingRoot.At(token.Position);
break;
}
}
}
/// <summary>
/// Before any doctype - still in the prolog. No declaration
/// allowed.
/// </summary>
/// <param name="token">The consumed token.</param>
void BeforeDoctype(XmlToken token)
{
switch (token.Type)
{
case XmlTokenType.Doctype:
{
var tok = (XmlDoctypeToken)token;
_document.AppendChild(new DocumentType(_document, tok.Name)
{
SystemIdentifier = tok.SystemIdentifier,
PublicIdentifier = tok.PublicIdentifier
});
_currentMode = XmlTreeMode.Misc;
break;
}
default:
{
InMisc(token);
break;
}
}
}
/// <summary>
/// The initial state. Expects an XML declaration.
/// </summary>
/// <param name="token">The consumed token.</param>
void Initial(XmlToken token)
{
if (token.Type == XmlTokenType.Declaration)
{
var tok = (XmlDeclarationToken)token;
_standalone = tok.Standalone;
if (!tok.IsEncodingMissing)
SetEncoding(tok.Encoding);
if (!CheckVersion(tok.Version))
throw XmlParseError.XmlDeclarationVersionUnsupported.At(token.Position);
}
else
{
_currentMode = XmlTreeMode.Prolog;
BeforeDoctype(token);
}
}
/// <summary>
/// Consumes a token and processes it.
/// </summary>
/// <param name="token">The token to consume.</param>
void Consume(XmlToken token)
{
switch (_currentMode)
{
case XmlTreeMode.Initial:
Initial(token);
break;
case XmlTreeMode.Prolog:
BeforeDoctype(token);
break;
case XmlTreeMode.Misc:
InMisc(token);
break;
case XmlTreeMode.Body:
InBody(token);
break;
case XmlTreeMode.After:
AfterBody(token);
break;
}
}