public object tokenize(object input, string pattern, string flags)
{
// fn:tokenize($input as xs:string?, $pattern as xs:string, $flags as xs:string) as xs:string*
string inputStr = ExtensionObjectConvert.ToString(input);
if (!inputStr.HasValue())
{
return(ExtensionObjectConvert.EmptyIterator);
}
return(ExtensionObjectConvert.ToInput(Regex.Split(inputStr, pattern, ParseFlags(flags))));
}
protected object resolve_uri(object relativeUri)
{
string relativeUriStr = ExtensionObjectConvert.ToString(relativeUri);
if (relativeUriStr == null)
{
return(ExtensionObjectConvert.EmptyIterator);
}
Uri resolvedUri = resolve_uri_impl(relativeUriStr, static_base_uri_impl());
return(ExtensionObjectConvert.ToInput(resolvedUri));
}
protected object resolve_uri(object relativeUri, string baseUri)
{
// fn:resolve-uri($relative as xs:string?, $base as xs:string) as xs:anyURI?
string relativeUriStr = ExtensionObjectConvert.ToString(relativeUri);
if (relativeUriStr == null)
{
return(ExtensionObjectConvert.EmptyIterator);
}
Uri baseU = new Uri(baseUri, UriKind.Absolute);
Uri resolvedUri = resolve_uri_impl(relativeUriStr, baseU);
return(ExtensionObjectConvert.ToInput(resolvedUri));
}
static object parse_xml_impl(object arg, bool fragment)
{
string str = ExtensionObjectConvert.ToString(arg);
if (str == null)
{
return(ExtensionObjectConvert.EmptyIterator);
}
var parseOptions = new XmlParsingOptions {
ConformanceLevel = (fragment) ?
ConformanceLevel.Fragment
: ConformanceLevel.Document
};
var itemFactory = new SystemItemFactory();
using (var reader = new StringReader(str)) {
return(ExtensionObjectConvert.ToInput(itemFactory.CreateNodeReadOnly(reader, parseOptions)));
}
}
public object data(object arg)
{
// fn:data($arg as item()*) as xs:anyAtomicType*
XPathNodeIterator iter = arg as XPathNodeIterator;
if (iter == null)
{
// if not iterator then it's a single item, return unchanged
return(arg);
}
if (ExtensionObjectConvert.IsEmpty(iter))
{
return(ExtensionObjectConvert.EmptyIterator);
}
if (iter.Count == 1)
{
return(iter.Cast <XPathNavigator>().Single().TypedValue);
}
return(ExtensionObjectConvert.ToInput(iter.Cast <XPathNavigator>().Select(n => n.TypedValue)));
}
