private bool FunctionAvailable(string qname) {
string name, prefix;
PrefixQName.ParseQualifiedName(qname, out prefix, out name);
string ns = LookupNamespace(prefix);
if(ns == Keywords.s_MsXsltNamespace) {
return name == f_NodeSet;
} else if(ns.Length == 0) {
return (
// It'll be better to get this information from XPath
name == "last" ||
name == "position" ||
name == "name" ||
name == "namespace-uri" ||
name == "local-name" ||
name == "count" ||
name == "id" ||
name == "string" ||
name == "concat" ||
name == "starts-with" ||
name == "contains" ||
name == "substring-before" ||
name == "substring-after" ||
name == "substring" ||
name == "string-length" ||
name == "normalize-space" ||
name == "translate" ||
name == "boolean" ||
name == "not" ||
name == "true" ||
name == "false" ||
name == "lang" ||
name == "number" ||
name == "sum" ||
name == "floor" ||
name == "ceiling" ||
name == "round" ||
// XSLT functions:
(s_FunctionTable[name] != null && name != "unparsed-entity-uri")
);
} else {
// Is this script or extention function?
object extension;
return GetExtentionMethod(ns, name, /*argTypes*/null, out extension) != null;
}
}
