RelaxngPattern CreatePatternFromParticleCore(XmlSchemaParticle xsdp)
{
XmlSchemaGroupBase gb = xsdp as XmlSchemaGroupBase;
if (xsdp is XmlSchemaAny)
{
RelaxngRef r = new RelaxngRef();
r.Name = "anyType";
return(r);
}
if (gb is XmlSchemaSequence)
{
RelaxngGroup grp = new RelaxngGroup();
foreach (XmlSchemaParticle xsdc in gb.Items)
{
grp.Patterns.Add(CreatePatternFromParticle(xsdc));
}
return(grp);
}
if (gb is XmlSchemaChoice)
{
RelaxngChoice rc = new RelaxngChoice();
foreach (XmlSchemaParticle xsdc in gb.Items)
{
rc.Patterns.Add(CreatePatternFromParticle(xsdc));
}
return(rc);
}
return(CreateElement((XmlSchemaElement)xsdp));
}
// Note that it does not return the changed sequence.
private RelaxngSingleContentPattern ToSequenceOfChoice(
RelaxngElement ct, RelaxngGroup s)
{
RelaxngSingleContentPattern scp =
laxOccurence ?
(RelaxngSingleContentPattern)
new RelaxngZeroOrMore() :
new RelaxngOneOrMore();
RelaxngChoice c = new RelaxngChoice();
foreach (RelaxngPattern p in s.Patterns)
{
c.Patterns.Add(p);
}
scp.Patterns.Add(c);
ct.Patterns.Clear();
ct.Patterns.Add(scp);
return(scp);
}
private void InferAsEmptyElement(RelaxngElement ct, bool isNew)
{
RelaxngPattern content = GetElementContent(ct);
if (content == null)
{
ct.Patterns.Add(new RelaxngEmpty());
return;
}
RelaxngGroup g = content as RelaxngGroup;
if (g == null)
{
return;
}
RelaxngOptional opt = new RelaxngOptional();
opt.Patterns.Add(g);
ct.Patterns.Remove(content);
ct.Patterns.Add(opt);
}
private void ProcessSequence(RelaxngElement ct, RelaxngGroup s,
ref int position, ref bool consumed,
bool isNew)
{
RelaxngMixed m = s.Patterns.Count > 0 ? s.Patterns [0] as RelaxngMixed : null;
RelaxngPatternList pl = m != null ?
m.Patterns : s.Patterns;
for (int i = 0; i < position; i++)
{
RelaxngPattern p = pl [i];
RelaxngRef iel = p as RelaxngRef;
if (iel == null)
{
RelaxngOneOrMore oom =
p as RelaxngOneOrMore;
iel = (RelaxngRef)oom.Patterns [0];
}
if (ElementMatches(iel))
{
// Sequence element type violation
// might happen (might not, but we
// cannot backtrack here). So switch
// to sequence of choice* here.
ProcessLax(ToSequenceOfChoice(ct, s));
return;
}
}
if (pl.Count <= position)
{
QName name = new QName(source.LocalName,
source.NamespaceURI);
RelaxngDefine nel = GetGlobalElement(name);
if (nel != null)
{
InferElement(nel, false);
}
else
{
nel = CreateGlobalElement(name); // used to be CreateElement().
InferElement(nel, true);
}
RelaxngRef re = new RelaxngRef();
re.Name = nel.Name;
pl.Add(re);
consumed = true;
return;
}
RelaxngPattern c = pl [position];
RelaxngRef el = c as RelaxngRef;
if (el == null)
{
RelaxngOneOrMore oom = c as RelaxngOneOrMore;
el = (RelaxngRef)oom.Patterns [0];
}
if (el == null)
{
throw Error(s, String.Format("Target complex type content sequence has an unacceptable type of particle {0}", s.Patterns [position]));
}
bool matches = ElementMatches(el);
if (matches)
{
if (consumed && c is RelaxngRef)
{
RelaxngOneOrMore oom = new RelaxngOneOrMore();
oom.Patterns.Add(el);
pl [position] = oom;
}
InferElement(el, false);
source.MoveToContent();
switch (source.NodeType)
{
case XmlNodeType.None:
if (source.NodeType ==
XmlNodeType.Element)
{
goto case XmlNodeType.Element;
}
else if (source.NodeType ==
XmlNodeType.EndElement)
{
goto case XmlNodeType.EndElement;
}
break;
case XmlNodeType.Element:
ProcessSequence(ct, s, ref position,
ref consumed, isNew);
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
case XmlNodeType.SignificantWhitespace:
MarkAsMixed(ct);
source.ReadString();
goto case XmlNodeType.None;
case XmlNodeType.Whitespace:
source.ReadString();
goto case XmlNodeType.None;
case XmlNodeType.EndElement:
return;
default:
source.Read();
break;
}
}
else
{
if (consumed)
{
position++;
consumed = false;
ProcessSequence(ct, s,
ref position, ref consumed,
isNew);
}
else
{
ProcessLax(ToSequenceOfChoice(ct, s));
}
}
}
private void InferComplexContentCore(RelaxngElement ct,
bool isNew)
{
int position = 0;
bool consumed = false;
do
{
switch (source.NodeType)
{
case XmlNodeType.Element:
RelaxngPattern p =
GetElementContent(ct);
RelaxngGroup g = null;
if (p == null)
{
g = new RelaxngGroup();
}
switch (p.PatternType)
{
case RelaxngPatternType.OneOrMore:
case RelaxngPatternType.ZeroOrMore:
ProcessLax((RelaxngSingleContentPattern)p);
break;
case RelaxngPatternType.Optional:
g = (RelaxngGroup)
((RelaxngOptional)p)
.Patterns [0];
goto default;
case RelaxngPatternType.Group:
g = (RelaxngGroup)p;
goto default;
case RelaxngPatternType.Text:
case RelaxngPatternType.Data:
g = new RelaxngGroup();
g.Patterns.Add(new RelaxngMixed());
goto default;
default:
if (g == null)
{
throw Error(p, "Unexpected pattern: " + p.PatternType);
}
ProcessSequence(ct, g,
ref position,
ref consumed,
isNew);
break;
}
source.MoveToContent();
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
case XmlNodeType.SignificantWhitespace:
MarkAsMixed(ct);
source.ReadString();
source.MoveToContent();
break;
case XmlNodeType.EndElement:
return; // finished
case XmlNodeType.None:
throw new NotImplementedException("Internal Error: Should not happen.");
}
} while (true);
}
public void WriteGroup(RelaxngGroup p)
{
WritePatterns(p.Patterns, ',', false);
}