internal override object getValue(XPathNavigator qyContext, XPathNodeIterator iterator)
{
double n1 = 0, n2 = 0;
//Debug.Assert(_opnd1 != null);
//Debug.Assert((_opnd2 != null) || (OperandValue::NEGATE == _op));
n1 = XmlConvert.ToXPathDouble(_opnd1.getValue(qyContext, iterator));
if (_op != Operator.Op.NEGATE)
{
n2 = XmlConvert.ToXPathDouble(_opnd2.getValue(qyContext, iterator));
}
switch (_op)
{
case Operator.Op.PLUS: return(n1 + n2);
case Operator.Op.MINUS: return(n1 - n2);
case Operator.Op.MOD: return(n1 % n2);
case Operator.Op.DIV: return(n1 / n2);
case Operator.Op.MUL: return(n1 * n2);
case Operator.Op.NEGATE: return(-n1);
}
return(null);
}
} // Advance
internal override Object getValue(IQuery qy)
{
if (_VarQuery != null)
{
return(_VarQuery.getValue(qy));
}
throw new XPathException(Res.Xp_UndefinedXsltContext, Prefix, Name);
}
internal Boolean toBoolean(XPathNavigator qyContext, XPathNodeIterator iterator)
{
if (_qy.ReturnType() == XPathResultType.NodeSet)
{
_qy.setContext(qyContext.Clone());
XPathNavigator value = _qy.advance();
if (value != null)
{
return(true);
}
else
{
return(false);
}
}
else if (_qy.ReturnType() == XPathResultType.String)
{
object result = _qy.getValue(qyContext, iterator);
if (result.ToString().Length > 0)
{
return(true);
}
else
{
if (result is string)
{
return(false);
}
else
{
Debug.Assert(result is XPathNavigator);
return(true); // RTF can't be empty ?
}
}
}
else if (_qy.ReturnType() == XPathResultType.Boolean)
{
return(Convert.ToBoolean(_qy.getValue(qyContext, iterator)));
}
else if (_qy.ReturnType() == XPathResultType.Number)
{
return(toBoolean(XmlConvert.ToXPathDouble(_qy.getValue(qyContext, iterator))));
}
return(false);
} // toBoolean
private String toString(XPathNavigator qyContext, XPathNodeIterator iterator)
{
if (_ArgList != null && _ArgList.Count > 0)
{
IQuery _qy = (IQuery)_ArgList[0];
if (_qy.ReturnType() == XPathResultType.NodeSet)
{
_qy.setContext(qyContext.Clone());
XPathNavigator value = _qy.advance();
if (value != null)
{
return(value.Value);
}
else
{
return(String.Empty);
}
}
else if (_qy.ReturnType() == XPathResultType.String)
{
return(_qy.getValue(qyContext, iterator).ToString());
}
else if (_qy.ReturnType() == XPathResultType.Boolean)
{
return(Convert.ToBoolean(_qy.getValue(qyContext, iterator)) ? "true" : "false");
}
else
{
return(toString(XmlConvert.ToXPathDouble(_qy.getValue(qyContext, iterator))));
}
}
else if (qyContext != null)
{
return(qyContext.Value);
}
else
{
return(String.Empty);
}
}
private String toString(IQuery qyContext)
{
XPathNavigator value = null;
if (_ArgList != null && _ArgList.Count > 0)
{
IQuery _qy = (IQuery)_ArgList[0];
if (_qy.ReturnType() == XPathResultType.NodeSet)
{
_qy.setContext(qyContext.peekElement().Clone());
value = _qy.advance();
if (value != null)
{
return(value.Value);
}
else
{
return(String.Empty);
}
}
else if (_qy.ReturnType() == XPathResultType.String)
{
return(_qy.getValue(qyContext).ToString());
}
else if (_qy.ReturnType() == XPathResultType.Boolean)
{
return(toString(Convert.ToBoolean(_qy.getValue(qyContext))));
}
return(toString(XmlConvert.ToXPathDouble(_qy.getValue(qyContext))));
}
else
if ((value = qyContext.peekElement()) != null)
{
return(value.Value);
}
else
{
return(String.Empty);
}
}
/// <include file='doc\XPathNavigator.uex' path='docs/doc[@for="XPathNavigator.Evaluate1"]/*' />
public virtual object Evaluate(XPathExpression expr, XPathNodeIterator context)
{
CompiledXpathExpr cexpr = expr as CompiledXpathExpr;
if (cexpr == null)
{
throw new XPathException(Res.Xp_BadQueryObject);
}
IQuery query = cexpr.QueryTree;
query.reset();
XPathNavigator current = (context != null) ? context.Current : this;
if (query.ReturnType() == XPathResultType.NodeSet)
{
return(new XPathSelectionIterator(current, expr));
}
return(query.getValue(current, context));
}
internal bool matches(IQuery e, XPathNavigator context)
{
if (_opnd == null)
{
return(false);
}
XPathResultType resultType = _opnd.ReturnType();
if (resultType == XPathResultType.Number)
{
double i = XmlConvert.ToXPathDouble(_opnd.getValue(e));
return(i == e.Position);
}
if (resultType == XPathResultType.NodeSet)
{
_opnd.setContext(context);
if (_opnd.advance() != null)
{
return(true);
}
else
{
return(false);
}
}
if (resultType == XPathResultType.Boolean)
{
return(Convert.ToBoolean(_opnd.getValue(e)));
}
if (resultType == XPathResultType.String)
{
if (_opnd.getValue(context, null).ToString().Length > 0)
{
return(true);
}
else
{
return(false);
}
}
return(false);
}
internal override Object getValue(IQuery qy)
{
InvokeFunction(qy.peekElement().Clone());
return(_ResultQuery.getValue(qy));
}
private void InvokeFunction(XPathNavigator qy)
{
IXsltContextFunction function = this.Function;
// calculate arguments:
Debug.Assert(_ArgArray != null && _ArgArray.Length == _ArgList.Count);
for (int i = _ArgList.Count - 1; 0 <= i; i--)
{
IQuery arg = (IQuery)_ArgList[i];
if (arg.ReturnType() == XPathResultType.NodeSet)
{
_ArgArray[i] = new XPathQueryIterator(arg, qy.Clone());
}
else
{
_ArgArray[i] = arg.getValue(qy, null);
}
}
try {
object result = function.Invoke(_XsltContext, _ArgArray, qy);
if (result == null)
{
_ResultQuery = new OperandQuery(String.Empty, XPathResultType.String);
}
else
{
XPathResultType returnedType = function.ReturnType;
if (returnedType == XPathResultType.Any)
{
// If function is untyped get returned type from real result
returnedType = XsltCompileContext.GetXPathType(result.GetType());
}
switch (returnedType)
{
case XPathResultType.String:
// trick. As soon XPathResultType.Navigator will be distinct type rid of from it.
//_ResultQuery = new OperandQuery( result, XPathResultType.String );
if (result is XPathNavigator)
{
_ResultQuery = new NavigatorQuery((XPathNavigator)result);
}
else
{
_ResultQuery = new OperandQuery(result, XPathResultType.String);
}
break;
case XPathResultType.Boolean:
_ResultQuery = new OperandQuery(result, XPathResultType.Boolean);
break;
case XPathResultType.Number:
_ResultQuery = new OperandQuery(XmlConvert.ToXPathDouble(result), XPathResultType.Number);
break;
case XPathResultType.NodeSet:
if (result is ResetableIterator)
{
_ResultQuery = new XmlIteratorQuery((ResetableIterator)result);
}
else
{
Debug.Assert(false, "Unexpected type of XPathNodeIterator");
throw new NotSupportedException(Res.GetString(Res.XmlUnsupportedType, result.GetType().FullName));
}
break;
// case XPathResultType.Navigator :
// _ResultQuery = new NavigatorQuery((XPathNavigator)result);
// break;
default:
_ResultQuery = new OperandQuery(result.ToString(), XPathResultType.String);
break;
}
}
}
catch (Exception ex) {
string qname = _Prefix != string.Empty ? _Prefix + ":" + _Name : _Name;
throw new XsltException(Res.Xslt_FunctionFailed, new string[] { qname }, ex);
}
}
static bool compareNumberBool1(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
Boolean n1 = BooleanFunctions.toBoolean(XmlConvert.ToXPathDouble(opnd1.getValue(qyContext)));
Boolean n2 = Convert.ToBoolean(opnd2.getValue(qyContext));
switch (op) {
case Operator.Op.EQ : return( n1 == n2 ) ;
case Operator.Op.NE : return( n1 != n2 ) ;
}
return false;
}
static bool compareNumberNumber(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
double n1 = XmlConvert.ToXPathDouble(opnd1.getValue(qyContext, iterator));
double n2 = XmlConvert.ToXPathDouble(opnd2.getValue(qyContext, iterator));
switch (op) {
case Operator.Op.LT : return( n1 < n2 ) ;
case Operator.Op.GT : return( n1 > n2 ) ;
case Operator.Op.LE : return( n1 <= n2 ) ;
case Operator.Op.GE : return( n1 >= n2 ) ;
case Operator.Op.EQ : return( n1 == n2 ) ;
case Operator.Op.NE : return( n1 != n2 ) ;
}
return false;
}
static bool compareStringQuery2(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
XPathNavigator val1;
opnd2.setContext(qyContext.Clone());
double n2, n1 = NumberFunctions.Number(XmlConvert.ToXPathString(opnd1.getValue(qyContext, iterator)));
while (true) {
val1 = opnd2.advance();
if (val1 != null)
n2 = NumberFunctions.Number(val1.Value);
else
return false;
switch (op) {
case Operator.Op.LT :if (n1 < n2) return true ;
break;
case Operator.Op.GT :if (n1 > n2) return true ;
break;
case Operator.Op.LE :if (n1 <= n2) return true ;
break;
case Operator.Op.GE :if (n1 >= n2) return true ;
break;
case Operator.Op.EQ :if (n1 == n2) return true ;
break;
case Operator.Op.NE :if (n1 != n2) return true ;
break;
}
}
}
static bool compareQueryString2(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd1.setContext(qyContext.peekElement().Clone());
double n1, n2 = NumberFunctions.Number(XmlConvert.ToXPathString(opnd2.getValue(qyContext)));
while (true) {
val1 = opnd1.advance();
if (val1 != null)
n1 = NumberFunctions.Number(val1.Value);
else
return false;
switch (op) {
case Operator.Op.LT :if (n1 < n2) return true;
break;
case Operator.Op.GT :if (n1 > n2) return true;
break;
case Operator.Op.LE :if (n1 <= n2) return true;
break;
case Operator.Op.GE :if (n1 >= n2) return true;
break;
case Operator.Op.EQ :if (n1 == n2) return true;
break;
case Operator.Op.NE :if (n1 != n2) return true;
break;
}
}
}
static bool compareBoolQuery2(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
XPathNavigator val1;
opnd2.setContext(qyContext.Clone());
double n2, n1 = NumberFunctions.Number(Convert.ToBoolean(opnd1.getValue(qyContext, iterator)));
val1 = opnd2.advance();
if (val1 != null)
n2 = 1.0;
else {
n2 = 0;
switch (op) {
case Operator.Op.LT : return (n1 < n2) ;
case Operator.Op.GT : return (n1 > n2) ;
case Operator.Op.LE : return (n1 <= n2) ;
case Operator.Op.GE : return (n1 >= n2) ;
}
}
switch (op) {
case Operator.Op.LT : return (n1 < n2) ;
case Operator.Op.GT : return (n1 > n2) ;
case Operator.Op.LE : return (n1 <= n2) ;
case Operator.Op.GE : return (n1 >= n2) ;
}
return false;
}
static bool compareBoolBool1(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
Boolean n1 = Convert.ToBoolean(opnd1.getValue(qyContext));
Boolean n2 = Convert.ToBoolean(opnd2.getValue(qyContext));
switch (op) {
case Operator.Op.EQ : return( n1 == n2 ) ;
case Operator.Op.NE : return( n1 != n2 ) ;
}
return false;
}
static bool compareBoolQuery1(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
XPathNavigator val1;
opnd2.setContext(qyContext.Clone());
Boolean n2 = false, n1 = Convert.ToBoolean(opnd1.getValue(qyContext, iterator));
val1 = opnd2.advance();
if (val1 != null)
n2 = true;
else {
if (op == Operator.Op.EQ ) {
return (n2 == n1);
}
return (n2 != n1);
}
switch (op) {
case Operator.Op.EQ : return (n1 == n2) ;
case Operator.Op.NE : return (n1 != n2) ;
}
return false;
}
static bool compareQueryBool2(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd1.setContext(qyContext.peekElement().Clone());
double n1, n2 = NumberFunctions.Number(Convert.ToBoolean(opnd2.getValue(qyContext)));
val1 = opnd1.advance();
if (val1 != null)
n1 = 1.0;
else {
n1 = 0;
switch (op) {
case Operator.Op.LT : return (n1 < n2) ;
case Operator.Op.GT : return (n1 > n2) ;
case Operator.Op.LE : return (n1 <= n2) ;
case Operator.Op.GE : return (n1 >= n2) ;
}
}
switch (op) {
case Operator.Op.LT : return (n1 < n2) ;
case Operator.Op.GT : return (n1 > n2) ;
case Operator.Op.LE : return (n1 <= n2) ;
case Operator.Op.GE : return (n1 >= n2) ;
}
return false;
}
static bool compareQueryBool1(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd1.setContext(qyContext.peekElement().Clone());
Boolean n1 = false, n2 = Convert.ToBoolean(opnd2.getValue(qyContext));
val1 = opnd1.advance();
if (val1 != null) {
n1 = true;
}
else {
if (op == Operator.Op.EQ ) {
return (n2 == n1);
}
return (n2 != n1);
}
switch (op) {
case Operator.Op.EQ : return (n1 == n2) ;
case Operator.Op.NE : return (n1 != n2) ;
}
return false;
}
static bool compareQueryString1(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
XPathNavigator val1;
opnd1.setContext(qyContext.Clone());
String n2 = XmlConvert.ToXPathString(opnd2.getValue(qyContext, iterator));
while ((val1 = opnd1.advance()) != null) {
if (op == Operator.Op.EQ) {
if (val1.Value == n2) return true;
}
else if (val1.Value != n2) return true;
}
return false;
}
static bool compareStringString1(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
String n1 = XmlConvert.ToXPathString(opnd1.getValue(qyContext, iterator));
String n2 = XmlConvert.ToXPathString(opnd2.getValue(qyContext, iterator));
switch (op) {
case Operator.Op.EQ : return( n1 == n2 ) ;
case Operator.Op.NE : return( n1 != n2 ) ;
}
return false;
}
static bool compareBoolNumber2(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
double n1 = NumberFunctions.Number(Convert.ToBoolean(opnd1.getValue(qyContext)));
double n2 = XmlConvert.ToXPathDouble(opnd2.getValue(qyContext));
switch (op) {
case Operator.Op.LT : return( n1 < n2 ) ;
case Operator.Op.GT : return( n1 > n2 ) ;
case Operator.Op.LE : return( n1 <= n2 ) ;
case Operator.Op.GE : return( n1 >= n2 ) ;
}
return false;
}
static bool compareStringQuery1(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op , XPathNodeIterator iterator) {
XPathNavigator val1;
opnd2.setContext(qyContext.Clone());
String n2, n1 = XmlConvert.ToXPathString(opnd1.getValue(qyContext, iterator));
while (true) {
val1 = opnd2.advance();
if (val1 != null)
n2 = val1.Value;
else
return false;
switch (op) {
case Operator.Op.EQ : if (n1 == n2) return true ;
break;
case Operator.Op.NE : if (n1 != n2) return true ;
break;
}
}
}
static bool compareBoolString1(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
Boolean n1 = Convert.ToBoolean(opnd1.getValue(qyContext, iterator));
Boolean n2 = BooleanFunctions.toBoolean(XmlConvert.ToXPathString(opnd2.getValue(qyContext, iterator)));
switch (op) {
case Operator.Op.EQ : return( n1 == n2 );
case Operator.Op.NE : return( n1 != n2 );
}
return false;
}
static bool compareBoolString2(IQuery opnd1, IQuery opnd2, XPathNavigator qyContext, Operator.Op op, XPathNodeIterator iterator) {
double n1 = NumberFunctions.Number(Convert.ToBoolean(opnd1.getValue(qyContext, iterator)));
double n2 = NumberFunctions.Number(XmlConvert.ToXPathString(opnd2.getValue(qyContext, iterator)));
switch (op) {
case Operator.Op.LT : return( n1 < n2 ) ;
case Operator.Op.GT : return( n1 > n2 ) ;
case Operator.Op.LE : return( n1 <= n2 ) ;
case Operator.Op.GE : return( n1 >= n2 ) ;
}
return false;
}
private double Number(XPathNavigator qyContext, XPathNodeIterator iterator)
{
if (_qy != null)
{
if (_qy.ReturnType() == XPathResultType.NodeSet)
{
_qy.setContext(qyContext.Clone());
XPathNavigator value = _qy.advance();
if (value != null)
{
return(Number(value.Value));
}
else
{
return(double.NaN);
}
}
else
if (_qy.ReturnType() == XPathResultType.String)
{
return(Number(_qy.getValue(qyContext, iterator).ToString()));
}
else
if (_qy.ReturnType() == XPathResultType.Boolean)
{
return(Number(Convert.ToBoolean(_qy.getValue(qyContext, iterator))));
}
else
{
return(XmlConvert.ToXPathDouble(_qy.getValue(qyContext, iterator)));
}
}
else
if (qyContext != null)
{
return(XmlConvert.ToXPathDouble(qyContext.Value));
}
else
{
return(double.NaN);
}
}
static bool compareNumberString(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
double n1 = XmlConvert.ToXPathDouble(opnd1.getValue(qyContext));
double n2 = NumberFunctions.Number(XmlConvert.ToXPathString(opnd2.getValue(qyContext)));
switch (op) {
case Operator.Op.LT : return( n1 < n2 ) ;
case Operator.Op.GT : return( n1 > n2 ) ;
case Operator.Op.LE : return( n1 <= n2 ) ;
case Operator.Op.GE : return( n1 >= n2 ) ;
case Operator.Op.EQ : return( n1 == n2 ) ;
case Operator.Op.NE : return( n1 != n2 ) ;
}
return false;
}
