private static XPointerSchema.SchemaType GetSchema(XPointerLexer lexer, IList <PointerPart> parts)
{
string schemaNSURI;
if (lexer.Prefix != String.Empty)
{
schemaNSURI = null;
//resolve prefix
for (int i = parts.Count - 1; i >= 0; i--)
{
PointerPart part = parts[i];
if (part is XmlnsSchemaPointerPart)
{
XmlnsSchemaPointerPart xmlnsPart = (XmlnsSchemaPointerPart)part;
if (xmlnsPart.Prefix == lexer.Prefix)
{
schemaNSURI = xmlnsPart.Uri;
break;
}
}
}
if (schemaNSURI == null)
{
//No binding for the prefix - ignore pointer part
return(XPointerSchema.SchemaType.Unknown);
}
}
else
{
schemaNSURI = String.Empty;
}
string schemaQName = schemaNSURI + ':' + lexer.NCName;
return(_schemas.ContainsKey(schemaQName)? _schemas[schemaQName] : XPointerSchema.SchemaType.Unknown);
}
private static XPointerSchema.SchemaType GetSchema(XPointerLexer lexer, ArrayList parts)
{
string schemaNSURI;
if (lexer.Prefix != String.Empty)
{
schemaNSURI = null;
//resolve prefix
for (int i = parts.Count - 1; i >= 0; i--)
{
PointerPart part = (PointerPart)parts[i];
if (part is XmlnsSchemaPointerPart)
{
XmlnsSchemaPointerPart xmlnsPart = (XmlnsSchemaPointerPart)part;
if (xmlnsPart.Prefix == lexer.Prefix)
{
schemaNSURI = xmlnsPart.Uri;
break;
}
}
}
if (schemaNSURI == null)
{
//No binding for the prefix - ignore pointer part
return(XPointerSchema.SchemaType.Unknown);
}
}
else
{
schemaNSURI = String.Empty;
}
object o = _schemas[schemaNSURI + ':' + lexer.NCName];
if (o == null)
{
return(XPointerSchema.SchemaType.Unknown);
}
else
{
return((XPointerSchema.SchemaType)o);
}
}
public static Pointer ParseXPointer(string xpointer)
{
var lexer = new XPointerLexer(xpointer);
lexer.NextLexeme();
if (lexer.Kind == XPointerLexer.LexKind.NcName && !lexer.CanBeSchemaName)
{
//Shorthand pointer
Pointer ptr = new ShorthandPointer(lexer.NcName);
lexer.NextLexeme();
if (lexer.Kind != XPointerLexer.LexKind.Eof)
{
throw new XPointerSyntaxException(Properties.Resources.InvalidTokenAfterShorthandPointer);
}
return(ptr);
}
//SchemaBased pointer
IList <PointerPart> parts = new List <PointerPart>();
while (lexer.Kind != XPointerLexer.LexKind.Eof)
{
if ((lexer.Kind == XPointerLexer.LexKind.NcName ||
lexer.Kind == XPointerLexer.LexKind.QName) &&
lexer.CanBeSchemaName)
{
XPointerSchema.SchemaType schemaType = GetSchema(lexer, parts);
//Move to '('
lexer.NextLexeme();
switch (schemaType)
{
case XPointerSchema.SchemaType.Element:
ElementSchemaPointerPart elemPart = ElementSchemaPointerPart.ParseSchemaData(lexer);
if (elemPart != null)
{
parts.Add(elemPart);
}
break;
case XPointerSchema.SchemaType.Xmlns:
XmlnsSchemaPointerPart xmlnsPart = XmlnsSchemaPointerPart.ParseSchemaData(lexer);
if (xmlnsPart != null)
{
parts.Add(xmlnsPart);
}
break;
case XPointerSchema.SchemaType.XPath1:
XPath1SchemaPointerPart xpath1Part = XPath1SchemaPointerPart.ParseSchemaData(lexer);
if (xpath1Part != null)
{
parts.Add(xpath1Part);
}
break;
case XPointerSchema.SchemaType.XPointer:
XPointerSchemaPointerPart xpointerPart = XPointerSchemaPointerPart.ParseSchemaData(lexer);
if (xpointerPart != null)
{
parts.Add(xpointerPart);
}
break;
default:
//Unknown scheme
lexer.ParseEscapedData();
break;
}
//Skip ')'
lexer.NextLexeme();
//Skip possible whitespace
if (lexer.Kind == XPointerLexer.LexKind.Space)
{
lexer.NextLexeme();
}
}
else
{
throw new XPointerSyntaxException(Properties.Resources.InvalidToken);
}
}
return(new SchemaBasedPointer(parts, xpointer));
}
