RelaxngPattern CreatePatternFromParticle(XmlSchemaParticle xsdp)
{
RelaxngSingleContentPattern rngp = null;
if (xsdp.MinOccurs == 0 && xsdp.MaxOccursString == "unbounded")
{
rngp = new RelaxngZeroOrMore();
}
else if (xsdp.MinOccurs == 1 && xsdp.MaxOccursString == "unbounded")
{
rngp = new RelaxngOneOrMore();
}
else if (xsdp.MinOccurs == 0)
{
rngp = new RelaxngOptional();
}
RelaxngPattern child = CreatePatternFromParticleCore(xsdp);
if (rngp == null)
{
return(child);
}
rngp.Patterns.Add(child);
return(rngp);
}
private void ProcessLax(RelaxngSingleContentPattern scp)
{
RelaxngChoice c = (RelaxngChoice)scp.Patterns [0];
foreach (RelaxngPattern p in c.Patterns)
{
RelaxngRef el = p as RelaxngRef;
if (el == null)
{
RelaxngOneOrMore oom =
(RelaxngOneOrMore)p;
el = (RelaxngRef)oom.Patterns [0];
}
if (el == null)
{
throw Error(c, String.Format("Target pattern contains unacceptable child pattern {0}. Only ref is allowed here."));
}
if (ElementMatches(el))
{
InferElement(el, false);
return;
}
}
// append a new element particle to lax term.
QName qname = new QName(
source.LocalName, source.NamespaceURI);
RelaxngDefine def = GetGlobalElement(qname);
if (def == null)
{
def = CreateGlobalElement(qname); // used to be CreateElement().
InferElement(def, true);
}
else
{
InferElement(def, false);
}
RelaxngRef nel = new RelaxngRef();
nel.Name = def.Name;
c.Patterns.Add(nel);
}
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));
}
}
}
public void WriteOneOrMore(RelaxngOneOrMore p)
{
WritePatterns(p.Patterns, true);
w.Write('+');
}