private static void HandleMinMax(CompiledContentModel pContent, uint cMin, uint cMax) {
if (cMax == uint.MaxValue) {
if (cMin == 0)
pContent.Star(); // minOccurs="0" and maxOccurs="infinite"
else
pContent.Plus(); // minOccurs="1" and maxOccurs="infinite"
}
else if (cMin == 0) { // minOccurs="0" and maxOccurs="1")
pContent.QuestionMark();
}
}
private void CompileContentModel(CompiledContentModel compiledContentModel, XmlSchemaParticle particle) {
if (particle is XmlSchemaElement) {
compiledContentModel.AddTerminal(((XmlSchemaElement)particle).QualifiedName, null, this.validationEventHandler);
}
else if (particle is XmlSchemaAny) {
compiledContentModel.AddAny((XmlSchemaAny)particle);
}
else if (particle is XmlSchemaGroupRef) {
XmlSchemaParticle realParticle = ((XmlSchemaGroupRef)particle).Particle;
Debug.Assert(realParticle != null && !realParticle.IsEmpty);
compiledContentModel.OpenGroup();
CompileContentModel(compiledContentModel, realParticle);
compiledContentModel.CloseGroup();
}
else if (particle is XmlSchemaAll) {
XmlSchemaAll all = (XmlSchemaAll)particle;
compiledContentModel.StartAllElements(all.Items.Count);
foreach (XmlSchemaElement localElement in all.Items) {
if (!compiledContentModel.AddAllElement(localElement.QualifiedName, (all.MinOccurs == decimal.One ? localElement.MinOccurs == decimal.One : false))) {
SendValidationEvent(Res.Sch_DupElement, localElement.QualifiedName.ToString(), localElement);
}
}
}
else if (particle is XmlSchemaGroupBase) {
XmlSchemaObjectCollection particles = ((XmlSchemaGroupBase)particle).Items;
bool isChoice = particle is XmlSchemaChoice;
compiledContentModel.OpenGroup();
bool first = true;
foreach (XmlSchemaParticle p in particles) {
if (first) {
first = false;
}
else if (isChoice) {
compiledContentModel.AddChoice();
}
else {
compiledContentModel.AddSequence();
}
Debug.Assert(!p.IsEmpty);
CompileContentModel(compiledContentModel, p);
}
compiledContentModel.CloseGroup();
}
else {
Debug.Assert(false);
}
if (particle.MinOccurs == decimal.One && particle.MaxOccurs == decimal.One) {
// nothing
}
else if (particle.MinOccurs == decimal.Zero && particle.MaxOccurs == decimal.One) {
compiledContentModel.QuestionMark();
}
else if (particle.MinOccurs == decimal.Zero && particle.MaxOccurs == decimal.MaxValue) {
compiledContentModel.Star();
}
else if (particle.MinOccurs == decimal.One && particle.MaxOccurs == decimal.MaxValue) {
compiledContentModel.Plus();
}
else {
compiledContentModel.MinMax(particle.MinOccurs, particle.MaxOccurs);
}
}
private void ParseElementDecl() {
XmlQualifiedName name = XmlQualifiedName.Empty;
while (true) {
switch (_SubState) {
case 0:
_HasSeenWhiteSpace = false;
GetToken();
name = GetName(_Token, _Namespaces);
_ElementDecl = (SchemaElementDecl)_SchemaInfo.ElementDecls[name];
if (_ElementDecl != null) {
SendValidationEvent(Res.Sch_DupElementDecl, _Scanner.GetText());
}
else {
_ElementDecl = (SchemaElementDecl)_UndeclaredElements[name];
if (_ElementDecl != null) {
_UndeclaredElements.Remove(name);
}
else {
_ElementDecl = new SchemaElementDecl(name, name.Namespace, SchemaType.DTD, _SchemaNames);
}
_SchemaInfo.ElementDecls.Add(name, _ElementDecl);
}
_ElementDecl.IsDeclaredInExternal = !_IsInternal;
_SubState = 1;
break;
case 1:
if (!_HasSeenWhiteSpace) {
SkipWhitespace(true);
}
_SubState = 2;
break;
case 2:
GetToken();
_ContentModel = _ElementDecl.Content;
if (_Token == XmlToken.NAME) {
if (_Scanner.IsToken(XmlToken.ANY)) {
_ContentModel.ContentType = CompiledContentModel.Type.Any;
_SubState = 12;
}
else if (_Scanner.IsToken(XmlToken.EMPTY)) {
_ContentModel.ContentType = CompiledContentModel.Type.Empty;
_SubState = 12;
}
else {
_SubState = 15; // error;
}
}
else if (_Token == XmlToken.LPAREN) {
_ContentModel.Start();
_ContentModel.OpenGroup();
PushGroup();
_SubState = 3;
_L = 0;
_HasTerminal = false;
}
else {
_SubState = 15; // error
}
break;
case 3:
GetToken();
if (_Token == XmlToken.HASH) {
_SubState = 4;
}
else {
_ContentModel.ContentType = CompiledContentModel.Type.ElementOnly;
_HasTerminal = false;
_SubState = 13;
Push(DtdFunctionIndex.ParseElementContent);
ParseElementContent();
}
break;
case 4:
_HasSeenWhiteSpace = SkipWhitespace(false);
_SubState = 5;
break;
case 5:
GetToken();
if (_HasSeenWhiteSpace || !_Scanner.IsToken(XmlToken.PCDATA))
throw new XmlException(Res.Xml_ExpectPcData, _Scanner.StartLineNum, _Scanner.StartLinePos);
_ContentModel.AddTerminal( _SchemaNames.QnPCData, null, _InternalValidationEventHandler);
_HasTerminal = true;
_SubState = 6;
break;
case 6:
_HasSeenWhiteSpace = false;
GetToken();
if (_Token == XmlToken.RPAREN) {
_ContentModel.ContentType = CompiledContentModel.Type.Text;
_ContentModel.CloseGroup();
_ContentModel.Finish(_InternalValidationEventHandler, true);
PopGroup();
_L = -1;
_SubState = 14;
_HasSeenWhiteSpace = false;
}
else {
_ContentModel.ContentType = CompiledContentModel.Type.Mixed;
_SubState = 7;
}
break;
case 7:
if (_Token == XmlToken.OR) {
_ContentModel.AddChoice();
_HasTerminal = false;
_SubState = 8;
}
else if (_Token == XmlToken.RPAREN) {
PopGroup();
_L = -1;
_HasSeenWhiteSpace = false;
_SubState = 10;
}
else {
_SubState = 15; // error
}
break;
case 8:
GetToken();
_ContentModel.AddTerminal(GetName(_Token, _Namespaces), _Prefix, _InternalValidationEventHandler);
_HasTerminal = true;
_SubState = 9;
break;
case 9:
_HasSeenWhiteSpace = false;
GetToken();
_SubState = 7;
break;
case 10:
if (!_HasSeenWhiteSpace) {
_HasSeenWhiteSpace = SkipWhitespace(false);
}
_SubState = 11;
break;
case 11:
GetToken(XmlToken.ASTERISK);
if (_HasSeenWhiteSpace)
throw new XmlException(Res.Xml_UnexpectedToken, "*", _Scanner.StartLineNum, _Scanner.StartLinePos);
_ContentModel.CloseGroup();
_ContentModel.Star();
_ContentModel.Finish(_InternalValidationEventHandler, true);
_SubState = 12;
break;
case 12:
GetToken();
_SubState = 13;
break;
case 13:
CheckTagend(_Token);
Pop();
return;
case 14:
_HasSeenWhiteSpace = SkipWhitespace(false);
GetToken();
if (_Token == XmlToken.ASTERISK) {
if (_HasSeenWhiteSpace)
throw new XmlException(Res.Xml_UnexpectedToken, "*", _Scanner.StartLineNum, _Scanner.StartLinePos);
_SubState = 12;
}
else {
_SubState = 13;
}
break;
case 15:
throw new XmlException(Res.Xml_InvalidContentModel, _Scanner.StartLineNum, _Scanner.StartLinePos);
} // switch
} // while
}
