public SortedIterator(BaseIterator iter) : base(iter.NamespaceManager)
{
this.list = new ArrayList();
while (iter.MoveNext())
{
XPathNavigator xpathNavigator = iter.Current;
this.list.Add(xpathNavigator.Clone());
}
if (this.list.Count == 0)
{
return;
}
XPathNavigator xpathNavigator2 = (XPathNavigator)this.list[0];
this.list.Sort(XPathNavigatorComparer.Instance);
for (int i = 1; i < this.list.Count; i++)
{
XPathNavigator xpathNavigator3 = (XPathNavigator)this.list[i];
if (xpathNavigator2.IsSamePosition(xpathNavigator3))
{
this.list.RemoveAt(i);
i--;
}
else
{
xpathNavigator2 = xpathNavigator3;
}
}
}
public static string ToString(object arg)
{
if (arg == null)
{
throw new ArgumentNullException();
}
if (arg is string)
{
return((string)arg);
}
if (arg is bool)
{
return(((bool)arg) ? "true" : "false");
}
if (arg is double)
{
return(ToString((double)arg));
}
if (arg is BaseIterator)
{
BaseIterator iter = (BaseIterator)arg;
if (!iter.MoveNext())
{
return("");
}
return(iter.Current.Value);
}
if (arg is XPathNavigator)
{
return(((XPathNavigator)arg).Value);
}
throw new ArgumentException();
}
public SortedIterator(BaseIterator iter) : base(iter.NamespaceManager)
{
list = new ArrayList();
while (iter.MoveNext())
{
list.Add(iter.Current.Clone());
}
// sort
if (list.Count == 0)
{
return;
}
XPathNavigator prev = (XPathNavigator)list [0];
list.Sort(XPathNavigatorComparer.Instance);
for (int i = 1; i < list.Count; i++)
{
XPathNavigator n = (XPathNavigator)list [i];
if (prev.IsSamePosition(n))
{
list.RemoveAt(i);
i--;
}
else
{
prev = n;
}
}
}
public override object Evaluate(BaseIterator iter)
{
String strArgs;
object val = arg0.Evaluate(iter);
BaseIterator valItr = val as BaseIterator;
if (valItr != null)
{
strArgs = "";
while (valItr.MoveNext())
{
strArgs += valItr.Current.Value + " ";
}
}
else
{
strArgs = XPathFunctions.ToString(val);
}
XPathNavigator n = iter.Current.Clone();
ArrayList rgNodes = new ArrayList();
string [] ids = strArgs.Split(rgchWhitespace);
for (int i = 0; i < ids.Length; i++)
{
if (n.MoveToId(ids [i]))
{
rgNodes.Add(n.Clone());
}
}
rgNodes.Sort(XPathNavigatorComparer.Instance);
return(new ListIterator(iter, rgNodes));
}
public static bool ToBoolean(object arg)
{
if (arg == null)
{
throw new ArgumentNullException();
}
if (arg is bool)
{
return((bool)arg);
}
if (arg is double)
{
double dArg = (double)arg;
return(dArg != 0.0 && !double.IsNaN(dArg));
}
if (arg is string)
{
return(((string)arg).Length != 0);
}
if (arg is BaseIterator)
{
BaseIterator iter = (BaseIterator)arg;
return(iter.MoveNext());
}
if (arg is XPathNavigator)
{
return(ToBoolean(((XPathNavigator)arg).SelectChildren(XPathNodeType.All)));
}
throw new ArgumentException();
}
public OrderedIterator(BaseIterator iter)
: base(iter.NamespaceManager)
{
// if (iter.Ordered)
if (false)
{
this.iter = iter;
}
else
{
list = new ArrayList();
while (iter.MoveNext())
{
list.Add(iter.Current);
}
list.Sort(XPathNavigatorComparer.Instance);
}
}
public OrderedIterator(BaseIterator iter) : base(iter.NamespaceManager)
{
this.list = new ArrayList();
while (iter.MoveNext())
{
XPathNavigator value = iter.Current;
this.list.Add(value);
}
this.list.Sort(XPathNavigatorComparer.Instance);
}
public override bool MoveNextCore()
{
while (_iter.MoveNext())
{
if (_test.Match(NamespaceManager, _iter.Current))
{
return(true);
}
}
return(false);
}
public override object Evaluate(BaseIterator iter)
{
if (iter.CurrentPosition == 0)
{
iter = (BaseIterator)iter.Clone();
iter.MoveNext();
}
XPathNavigator xpathNavigator = iter.Current.Clone();
xpathNavigator.MoveToRoot();
return(new SelfIterator(xpathNavigator, iter.NamespaceManager));
}
public SimpleIterator(BaseIterator iter) : base(iter.NamespaceManager)
{
if (iter.CurrentPosition == 0)
{
skipfirst = true;
iter.MoveNext();
}
if (iter.CurrentPosition > 0)
{
_nav = iter.Current.Clone();
}
}
public override bool MoveNextCore()
{
if (!keepLeft)
{
keepLeft = _left.MoveNext();
}
if (!keepRight)
{
keepRight = _right.MoveNext();
}
if (!keepLeft && !keepRight)
{
return(false);
}
if (!keepRight)
{
keepLeft = false;
SetCurrent(_left);
return(true);
}
else if (!keepLeft)
{
keepRight = false;
SetCurrent(_right);
return(true);
}
switch (_left.Current.ComparePosition(_right.Current))
{
case XmlNodeOrder.Same:
// consume both. i.e. don't output duplicate result.
keepLeft = keepRight = false;
SetCurrent(_right);
return(true);
case XmlNodeOrder.Before:
case XmlNodeOrder.Unknown: // Maybe happen because of "document(a) | document(b)"
keepLeft = false;
SetCurrent(_left);
return(true);
case XmlNodeOrder.After:
keepRight = false;
SetCurrent(_right);
return(true);
default:
throw new InvalidOperationException("Should not happen.");
}
}
public override bool MoveNextCore()
{
if (iter != null)
{
return(iter.MoveNext());
}
else if (index++ < list.Count)
{
return(true);
}
index--;
return(false);
}
public override object Evaluate(BaseIterator iter)
{
if (this.arg0 == null)
{
return(iter.Current.NamespaceURI);
}
BaseIterator baseIterator = this.arg0.EvaluateNodeSet(iter);
if (baseIterator == null || !baseIterator.MoveNext())
{
return(string.Empty);
}
return(baseIterator.Current.NamespaceURI);
}
public override object Evaluate(BaseIterator iter)
{
if (arg0 == null)
{
return(iter.Current.Name);
}
BaseIterator argNs = arg0.EvaluateNodeSet(iter);
if (argNs == null || !argNs.MoveNext())
{
return("");
}
return(argNs.Current.Name);
}
public override bool MoveNextCore()
{
if (finished)
{
return(false);
}
while (_iter.MoveNext())
{
switch (resType)
{
case XPathResultType.Number:
if (_pred.EvaluateNumber(_iter) != _iter.ComparablePosition)
{
continue;
}
break;
case XPathResultType.Any:
{
object result = _pred.Evaluate(_iter);
if (result is double)
{
if ((double)result != _iter.ComparablePosition)
{
continue;
}
}
else if (!XPathFunctions.ToBoolean(result))
{
continue;
}
}
break;
default:
if (!_pred.EvaluateBoolean(_iter))
{
continue;
}
break;
}
return(true);
}
finished = true;
return(false);
}
private ArrayList ToSortElementList(BaseIterator iter)
{
ArrayList arrayList = new ArrayList();
int count = this._rgSorters.Count;
while (iter.MoveNext())
{
XPathSortElement xpathSortElement = new XPathSortElement();
xpathSortElement.Navigator = iter.Current.Clone();
xpathSortElement.Values = new object[count];
for (int i = 0; i < this._rgSorters.Count; i++)
{
XPathSorter xpathSorter = (XPathSorter)this._rgSorters[i];
xpathSortElement.Values[i] = xpathSorter.Evaluate(iter);
}
arrayList.Add(xpathSortElement);
}
return(arrayList);
}
public override bool MoveNextCore()
{
while (_right == null || !_right.MoveNext())
{
if (!_left.MoveNext())
{
return(false);
}
_right = _expr.EvaluateNodeSet(_left);
}
if (_current == null)
{
_current = _right.Current.Clone();
}
else if (!_current.MoveTo(_right.Current))
{
_current = _right.Current.Clone();
}
return(true);
}
public virtual string EvaluateString(BaseIterator iter)
{
object obj = this.Evaluate(iter);
XPathResultType returnType = this.GetReturnType(iter);
if (returnType == XPathResultType.Any)
{
returnType = Expression.GetReturnType(obj);
}
switch (returnType)
{
case XPathResultType.Number:
{
double d = (double)obj;
return(XPathFunctions.ToString(d));
}
case XPathResultType.String:
return((string)obj);
case XPathResultType.Boolean:
return((!(bool)obj) ? "false" : "true");
case XPathResultType.NodeSet:
{
BaseIterator baseIterator = (BaseIterator)obj;
if (baseIterator == null || !baseIterator.MoveNext())
{
return(string.Empty);
}
return(baseIterator.Current.Value);
}
case XPathResultType.Navigator:
return(((XPathNavigator)obj).Value);
default:
throw new XPathException("invalid node type");
}
}
public virtual bool EvaluateBoolean(BaseIterator iter)
{
object obj = this.Evaluate(iter);
XPathResultType returnType = this.GetReturnType(iter);
if (returnType == XPathResultType.Any)
{
returnType = Expression.GetReturnType(obj);
}
switch (returnType)
{
case XPathResultType.Number:
{
double num = Convert.ToDouble(obj);
return(num != 0.0 && num != -0.0 && !double.IsNaN(num));
}
case XPathResultType.String:
return(((string)obj).Length != 0);
case XPathResultType.Boolean:
return((bool)obj);
case XPathResultType.NodeSet:
{
BaseIterator baseIterator = (BaseIterator)obj;
return(baseIterator != null && baseIterator.MoveNext());
}
case XPathResultType.Navigator:
return(((XPathNavigator)obj).HasChildren);
default:
throw new XPathException("invalid node type");
}
}
public OrderedIterator (BaseIterator iter)
: base (iter.NamespaceManager)
{
// if (iter.Ordered)
// if (false)
// this.iter = iter;
// else
{
list = new ArrayList ();
while (iter.MoveNext ())
list.Add (iter.Current);
list.Sort (XPathNavigatorComparer.Instance);
}
}
public static bool ToBoolean(BaseIterator iter)
{
return(iter != null && iter.MoveNext());
}
public static bool ToBoolean (BaseIterator iter)
{
return iter != null && iter.MoveNext ();
}
public override bool EvaluateBoolean(BaseIterator iter)
{
XPathResultType xpathResultType = this._left.GetReturnType(iter);
XPathResultType xpathResultType2 = this._right.GetReturnType(iter);
if (xpathResultType == XPathResultType.Any)
{
xpathResultType = Expression.GetReturnType(this._left.Evaluate(iter));
}
if (xpathResultType2 == XPathResultType.Any)
{
xpathResultType2 = Expression.GetReturnType(this._right.Evaluate(iter));
}
if (xpathResultType == XPathResultType.Navigator)
{
xpathResultType = XPathResultType.String;
}
if (xpathResultType2 == XPathResultType.Navigator)
{
xpathResultType2 = XPathResultType.String;
}
if (xpathResultType == XPathResultType.NodeSet || xpathResultType2 == XPathResultType.NodeSet)
{
Expression expression;
Expression expression2;
if (xpathResultType != XPathResultType.NodeSet)
{
expression = this._right;
expression2 = this._left;
XPathResultType xpathResultType3 = xpathResultType;
xpathResultType2 = xpathResultType3;
}
else
{
expression = this._left;
expression2 = this._right;
}
if (xpathResultType2 == XPathResultType.Boolean)
{
return(expression.EvaluateBoolean(iter) == expression2.EvaluateBoolean(iter) == this.trueVal);
}
BaseIterator baseIterator = expression.EvaluateNodeSet(iter);
if (xpathResultType2 == XPathResultType.Number)
{
double num = expression2.EvaluateNumber(iter);
while (baseIterator.MoveNext())
{
if (XPathFunctions.ToNumber(baseIterator.Current.Value) == num == this.trueVal)
{
return(true);
}
}
}
else if (xpathResultType2 == XPathResultType.String)
{
string b = expression2.EvaluateString(iter);
while (baseIterator.MoveNext())
{
if (baseIterator.Current.Value == b == this.trueVal)
{
return(true);
}
}
}
else if (xpathResultType2 == XPathResultType.NodeSet)
{
BaseIterator baseIterator2 = expression2.EvaluateNodeSet(iter);
ArrayList arrayList = new ArrayList();
while (baseIterator.MoveNext())
{
XPathNavigator xpathNavigator = baseIterator.Current;
arrayList.Add(XPathFunctions.ToString(xpathNavigator.Value));
}
while (baseIterator2.MoveNext())
{
XPathNavigator xpathNavigator2 = baseIterator2.Current;
string a = XPathFunctions.ToString(xpathNavigator2.Value);
for (int i = 0; i < arrayList.Count; i++)
{
if (a == (string)arrayList[i] == this.trueVal)
{
return(true);
}
}
}
}
return(false);
}
else
{
if (xpathResultType == XPathResultType.Boolean || xpathResultType2 == XPathResultType.Boolean)
{
return(this._left.EvaluateBoolean(iter) == this._right.EvaluateBoolean(iter) == this.trueVal);
}
if (xpathResultType == XPathResultType.Number || xpathResultType2 == XPathResultType.Number)
{
return(this._left.EvaluateNumber(iter) == this._right.EvaluateNumber(iter) == this.trueVal);
}
return(this._left.EvaluateString(iter) == this._right.EvaluateString(iter) == this.trueVal);
}
}
public override bool MoveNextCore()
{
return(_iter.MoveNext());
}
public override bool MoveNextCore()
{
if (_finished)
{
return(false);
}
if (_iterRight == null) // First time
{
if (!_iterLeft.MoveNext())
{
return(false);
}
_iterRight = _expr.EvaluateNodeSet(_iterLeft);
_iterList = new SortedList(XPathIteratorComparer.Instance);
}
while (true)
{
while (!_iterRight.MoveNext())
{
if (_iterList.Count > 0)
{
int last = _iterList.Count - 1;
_iterRight = (BaseIterator)_iterList.GetByIndex(last);
_iterList.RemoveAt(last);
break;
}
else if (_nextIterRight != null)
{
_iterRight = _nextIterRight;
_nextIterRight = null;
break;
}
else if (!_iterLeft.MoveNext())
{
_finished = true;
return(false);
}
else
{
_iterRight = _expr.EvaluateNodeSet(_iterLeft);
}
}
bool loop = true;
while (loop)
{
loop = false;
if (_nextIterRight == null)
{
bool noMoreNext = false;
while (_nextIterRight == null || !_nextIterRight.MoveNext())
{
if (_iterLeft.MoveNext())
{
_nextIterRight = _expr.EvaluateNodeSet(_iterLeft);
}
else
{
noMoreNext = true;
break;
}
}
if (noMoreNext)
{
_nextIterRight = null; // FIXME: More efficient code. Maybe making noMoreNext class scope would be better.
}
}
if (_nextIterRight != null)
{
switch (_iterRight.Current.ComparePosition(_nextIterRight.Current))
{
case XmlNodeOrder.After:
_iterList [_iterRight] = _iterRight;
_iterRight = _nextIterRight;
_nextIterRight = null;
loop = true;
break;
case XmlNodeOrder.Same:
if (!_nextIterRight.MoveNext())
{
_nextIterRight = null;
}
else
{
int last = _iterList.Count;
_iterList [_nextIterRight] = _nextIterRight;
if (last != _iterList.Count)
{
_nextIterRight = (BaseIterator)_iterList.GetByIndex(last);
_iterList.RemoveAt(last);
}
}
loop = true;
break;
}
}
}
return(true);
}
}
public override object Evaluate (BaseIterator iter)
{
if (iter.CurrentPosition == 0) {
iter = (BaseIterator) iter.Clone ();
iter.MoveNext ();
}
XPathNavigator navRoot = iter.Current.Clone ();
navRoot.MoveToRoot ();
return new SelfIterator (navRoot, iter.NamespaceManager);
}
ArrayList ToSortElementList (BaseIterator iter)
{
ArrayList rgElts = new ArrayList ();
int cSorters = _rgSorters.Count;
while (iter.MoveNext ())
{
XPathSortElement elt = new XPathSortElement ();
elt.Navigator = iter.Current.Clone ();
elt.Values = new object [cSorters];
for (int iSorter = 0; iSorter < _rgSorters.Count; ++iSorter)
{
XPathSorter sorter = (XPathSorter) _rgSorters [iSorter];
elt.Values [iSorter] = sorter.Evaluate (iter);
}
rgElts.Add (elt);
}
return rgElts;
}
public override bool EvaluateBoolean(BaseIterator iter)
{
XPathResultType xpathResultType = this._left.GetReturnType(iter);
XPathResultType xpathResultType2 = this._right.GetReturnType(iter);
if (xpathResultType == XPathResultType.Any)
{
xpathResultType = Expression.GetReturnType(this._left.Evaluate(iter));
}
if (xpathResultType2 == XPathResultType.Any)
{
xpathResultType2 = Expression.GetReturnType(this._right.Evaluate(iter));
}
if (xpathResultType == XPathResultType.Navigator)
{
xpathResultType = XPathResultType.String;
}
if (xpathResultType2 == XPathResultType.Navigator)
{
xpathResultType2 = XPathResultType.String;
}
if (xpathResultType != XPathResultType.NodeSet && xpathResultType2 != XPathResultType.NodeSet)
{
return(this.Compare(this._left.EvaluateNumber(iter), this._right.EvaluateNumber(iter)));
}
bool fReverse = false;
Expression expression;
Expression expression2;
if (xpathResultType != XPathResultType.NodeSet)
{
fReverse = true;
expression = this._right;
expression2 = this._left;
XPathResultType xpathResultType3 = xpathResultType;
xpathResultType2 = xpathResultType3;
}
else
{
expression = this._left;
expression2 = this._right;
}
if (xpathResultType2 == XPathResultType.Boolean)
{
bool value = expression.EvaluateBoolean(iter);
bool value2 = expression2.EvaluateBoolean(iter);
return(this.Compare(Convert.ToDouble(value), Convert.ToDouble(value2), fReverse));
}
BaseIterator baseIterator = expression.EvaluateNodeSet(iter);
if (xpathResultType2 == XPathResultType.Number || xpathResultType2 == XPathResultType.String)
{
double arg = expression2.EvaluateNumber(iter);
while (baseIterator.MoveNext())
{
if (this.Compare(XPathFunctions.ToNumber(baseIterator.Current.Value), arg, fReverse))
{
return(true);
}
}
}
else if (xpathResultType2 == XPathResultType.NodeSet)
{
BaseIterator baseIterator2 = expression2.EvaluateNodeSet(iter);
ArrayList arrayList = new ArrayList();
while (baseIterator.MoveNext())
{
XPathNavigator xpathNavigator = baseIterator.Current;
arrayList.Add(XPathFunctions.ToNumber(xpathNavigator.Value));
}
while (baseIterator2.MoveNext())
{
XPathNavigator xpathNavigator2 = baseIterator2.Current;
double arg2 = XPathFunctions.ToNumber(xpathNavigator2.Value);
for (int i = 0; i < arrayList.Count; i++)
{
if (this.Compare((double)arrayList[i], arg2))
{
return(true);
}
}
}
}
return(false);
}
public override bool MoveNextCore ()
{
if (_finished)
return false;
if (_iterRight == null) { // First time
if (!_iterLeft.MoveNext ())
return false;
_iterRight = _expr.EvaluateNodeSet (_iterLeft);
_iterList = new SortedList (XPathIteratorComparer.Instance);
}
while (true) {
while (!_iterRight.MoveNext ()) {
if (_iterList.Count > 0) {
int last = _iterList.Count - 1;
_iterRight = (BaseIterator) _iterList.GetByIndex (last);
_iterList.RemoveAt (last);
break;
} else if (_nextIterRight != null) {
_iterRight = _nextIterRight;
_nextIterRight = null;
break;
} else if (!_iterLeft.MoveNext ()) {
_finished = true;
return false;
}
else
_iterRight = _expr.EvaluateNodeSet (_iterLeft);
}
bool loop = true;
while (loop) {
loop = false;
if (_nextIterRight == null) {
bool noMoreNext = false;
while (_nextIterRight == null || !_nextIterRight.MoveNext ()) {
if(_iterLeft.MoveNext ())
_nextIterRight = _expr.EvaluateNodeSet (_iterLeft);
else {
noMoreNext = true;
break;
}
}
if (noMoreNext)
_nextIterRight = null; // FIXME: More efficient code. Maybe making noMoreNext class scope would be better.
}
if (_nextIterRight != null) {
switch (_iterRight.Current.ComparePosition (_nextIterRight.Current)) {
case XmlNodeOrder.After:
_iterList [_iterRight] = _iterRight;
_iterRight = _nextIterRight;
_nextIterRight = null;
loop = true;
break;
case XmlNodeOrder.Same:
if (!_nextIterRight.MoveNext ())
_nextIterRight = null;
else {
int last = _iterList.Count;
_iterList [_nextIterRight] = _nextIterRight;
if (last != _iterList.Count) {
_nextIterRight = (BaseIterator) _iterList.GetByIndex (last);
_iterList.RemoveAt (last);
}
}
loop = true;
break;
}
}
}
return true;
}
}
public SortedIterator (BaseIterator iter) : base (iter.NamespaceManager)
{
list = new ArrayList ();
while (iter.MoveNext ())
list.Add (iter.Current.Clone ());
// sort
if (list.Count == 0)
return;
XPathNavigator prev = (XPathNavigator) list [0];
list.Sort (XPathNavigatorComparer.Instance);
for (int i = 1; i < list.Count; i++) {
XPathNavigator n = (XPathNavigator) list [i];
if (prev.IsSamePosition (n)) {
list.RemoveAt (i);
i--;
}
else
prev = n;
}
}
public SimpleIterator (BaseIterator iter) : base (iter.NamespaceManager)
{
if (iter.CurrentPosition == 0) {
skipfirst = true;
iter.MoveNext ();
}
if (iter.CurrentPosition > 0)
_nav = iter.Current.Clone ();
}
