private Boolean Lang(IQuery qy)
{
String str = _qy.getValue(qy).ToString();
XPathNavigator context = qy.peekElement().Clone();
return(Lang(str, context));
}
private String Normalize(IQuery qy)
{
String str1;
if (_ArgList != null && _ArgList.Count > 0)
{
str1 = ((IQuery)_ArgList[0]).getValue(qy).ToString().Trim();
}
else
{
str1 = qy.peekElement().Value.Trim();
}
int count = 0;
StringBuilder str2 = new StringBuilder();;
bool FirstSpace = true;
while (count < str1.Length)
{
if (!XmlCharType.IsWhiteSpace(str1[count]))
{
FirstSpace = true;
str2.Append(str1[count]);
}
else
if (FirstSpace)
{
FirstSpace = false;
str2.Append(str1[count]);
}
count++;
}
return(str2.ToString());
}
internal override XPathNavigator peekElement()
{
if (_VarQuery != null)
{
return(_VarQuery.peekElement());
}
throw new XPathException(Res.Xp_UndefinedXsltContext, Prefix, Name);
}
private double Number(IQuery qyContext)
{
XPathNavigator value = null;
if (_qy != null)
{
if (_qy.ReturnType() == XPathResultType.NodeSet)
{
_qy.setContext(qyContext.peekElement().Clone());
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).ToString()));
}
else
if (_qy.ReturnType() == XPathResultType.Boolean)
{
return(Number(Convert.ToBoolean(_qy.getValue(qyContext))));
}
else
{
return(XmlConvert.ToXPathDouble(_qy.getValue(qyContext)));
}
}
else
if ((value = qyContext.peekElement()) != null)
{
return(XmlConvert.ToXPathDouble(value.Value));
}
else
{
return(double.NaN);
}
}
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);
}
}
private double Sum(IQuery qyContext)
{
double sum = 0;
_qy.setContext(qyContext.peekElement().Clone());
XPathNavigator value = _qy.advance();
while (value != null)
{
sum += Number(value.Value);
value = _qy.advance();
}
return(sum);
}
private Double StringLength(IQuery qy)
{
if (_ArgList != null && _ArgList.Count > 0)
{
return(((IQuery)_ArgList[0]).getValue(qy).ToString().Length);
}
else
{
XPathNavigator temp = qy.peekElement();
if (temp != null)
{
return(temp.Value.Length);
}
else
{
return(0);
}
}
}
} // toBoolean
internal Boolean toBoolean(IQuery qyContext)
{
if (_qy.ReturnType() == XPathResultType.NodeSet)
{
_qy.setContext(qyContext.peekElement().Clone());
XPathNavigator value = _qy.advance();
if (value != null)
{
return(true);
}
else
{
return(false);
}
}
else if (_qy.ReturnType() == XPathResultType.String)
{
if (_qy.getValue(qyContext).ToString().Length > 0)
{
return(true);
}
else
{
return(false);
}
}
else if (_qy.ReturnType() == XPathResultType.Boolean)
{
return(Convert.ToBoolean(_qy.getValue(qyContext)));
}
else if (_qy.ReturnType() == XPathResultType.Number)
{
return(toBoolean(XmlConvert.ToXPathDouble(_qy.getValue(qyContext))));
}
return(false);
} // toBoolean
internal override object getValue(IQuery qyContext)
{
XPathNavigator eNext;
switch (_FType)
{
case FT.FuncPosition:
if (qyContext != null)
{
return((double)qyContext.Position);
}
break;
case FT.FuncLast:
if (qyContext != null)
{
if (checkWhitespace)
{
return((double)((PositionQuery)qyContext).getNonWSCount(context));
}
try {
return((double)((PositionQuery)qyContext).getCount());
}
catch (Exception) {
if (last == -1)
{
last = 0;
IQuery temp = qyContext.Clone();
while (temp.advance() != null)
{
last++;
}
}
return(last);
}
}
break;
case FT.FuncCount:
int i = 0;
_Opnd.setContext(qyContext.peekElement());
if (checkWhitespace)
{
XPathNavigator nav;
while ((nav = _Opnd.advance()) != null)
{
if (nav.NodeType != XPathNodeType.Whitespace || context.PreserveWhitespace(nav))
{
i++;
}
}
return((double)i);
}
while (_Opnd.advance() != null)
{
i++;
}
return((double)i);
case FT.FuncNameSpaceUri:
if (_Opnd != null)
{
_Opnd.setContext(qyContext.peekElement());
if ((eNext = _Opnd.advance()) != null)
{
return(eNext.NamespaceURI);
}
else
{
return(String.Empty);
}
}
return(qyContext.peekElement().NamespaceURI);
case FT.FuncLocalName:
if (_Opnd != null)
{
_Opnd.setContext(qyContext.peekElement().Clone());
if ((eNext = _Opnd.advance()) != null)
{
return(eNext.LocalName);
}
else
{
return(String.Empty);
}
}
return(qyContext.peekElement().LocalName);
case FT.FuncName:
if (_Opnd != null)
{
_Opnd.setContext(qyContext.peekElement().Clone());
if ((eNext = _Opnd.advance()) != null)
{
return(eNext.Name);
}
else
{
return(String.Empty);
}
}
return(qyContext.peekElement().Name);
}
return(String.Empty);
}
private Double StringLength(IQuery qy) {
if (_ArgList != null && _ArgList.Count > 0)
return((IQuery)_ArgList[0]).getValue(qy).ToString().Length;
else {
XPathNavigator temp = qy.peekElement();
if (temp != null)
return temp.Value.Length;
else
return 0;
}
}
private String Normalize(IQuery qy) {
String str1;
if (_ArgList != null && _ArgList.Count > 0)
str1 = ((IQuery)_ArgList[0]).getValue(qy).ToString().Trim();
else
str1 = qy.peekElement().Value.Trim();
int count = 0;
StringBuilder str2 = new StringBuilder();;
bool FirstSpace = true;
while (count < str1.Length) {
if (!XmlCharType.IsWhiteSpace(str1[count])) {
FirstSpace = true;
str2.Append(str1[count]);
}
else
if (FirstSpace) {
FirstSpace = false;
str2.Append(str1[count]);
}
count++;
}
return str2.ToString();
}
internal override XPathNavigator peekElement()
{
Debug.Assert(_ResultQuery != null && _ResultQuery.ReturnType() == XPathResultType.NodeSet);
return(_ResultQuery.peekElement());
}
static bool compareQueryQuery1(
IQuery opnd1,
IQuery opnd2,
IQuery qyContext,
Operator.Op op) {
XPathNavigator val1, val2;
String str1,str2;
opnd1.setContext(qyContext.peekElement().Clone());
opnd2.setContext(qyContext.peekElement().Clone());
while (true) {
val1 = opnd1.advance();
if (val1 != null)
str1 = val1.Value;
else
return false;
val2 = opnd2.advance();
if (val2 != null)
str2 = val2.Value;
else
return false;
while (true) {
switch (op) {
case Operator.Op.EQ :
if (str1 == str2)
return true;
break;
case Operator.Op.NE :
if (str1 != str2)
return true;
break;
}
val2 = opnd2.advance();
if (val2 != null)
str2 = val2.Value;
else {
opnd2.reset();
break;
}
}
}
}
private Boolean Lang(IQuery qy) {
String str = _qy.getValue(qy).ToString();
XPathNavigator context = qy.peekElement().Clone();
return Lang(str, context);
}
static bool compareStringQuery2(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd1.setContext(qyContext.peekElement().Clone());
double n2, n1 = NumberFunctions.Number(XmlConvert.ToXPathString(opnd1.getValue(qyContext)));
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;
}
}
}
private double Number(IQuery qyContext) {
XPathNavigator value = null;
if (_qy != null) {
if (_qy.ReturnType() == XPathResultType.NodeSet) {
_qy.setContext(qyContext.peekElement().Clone());
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).ToString());
else
if (_qy.ReturnType() == XPathResultType.Boolean)
return Number(Convert.ToBoolean(_qy.getValue(qyContext)));
else
return XmlConvert.ToXPathDouble(_qy.getValue(qyContext));
}
else
if ((value = qyContext.peekElement()) != null)
return XmlConvert.ToXPathDouble(value.Value);
else
return double.NaN;
}
static bool compareStringQuery1(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd2.setContext(qyContext.peekElement().Clone());
String n2, n1 = XmlConvert.ToXPathString(opnd1.getValue(qyContext));
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 compareQueryString1(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd1.setContext(qyContext.peekElement().Clone());
String n2 = XmlConvert.ToXPathString(opnd2.getValue(qyContext));
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 compareQueryQuery2(
IQuery opnd1,
IQuery opnd2,
IQuery qyContext,
Operator.Op op) {
XPathNavigator val1, val2;
double n1,n2;
opnd1.setContext(qyContext.peekElement().Clone());
opnd2.setContext(qyContext.peekElement().Clone());
while (true) {
val1 = opnd1.advance();
if (val1 != null)
n1 = NumberFunctions.Number(val1.Value);
else
return false;
val2 = opnd2.advance();
if (val2 != null)
n2 = NumberFunctions.Number(val2.Value);
else
return false;
while (true) {
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;
}
val2 = opnd2.advance();
if (val2 != null)
n2 = NumberFunctions.Number(val2.Value);
else {
opnd2.reset();
break;
}
}
}
}
internal override Object getValue(IQuery qy) {
InvokeFunction(qy.peekElement().Clone());
return _ResultQuery.getValue(qy);
}
internal override object getValue( IQuery qyContext) {
XPathNavigator eNext;
switch (_FType) {
case FT.FuncPosition:
if (qyContext != null) {
return (double)qyContext.Position;
}
break;
case FT.FuncLast:
if (qyContext != null) {
if (checkWhitespace) {
return(double)((PositionQuery)qyContext).getNonWSCount(context);
}
try {
return(double)((PositionQuery)qyContext).getCount();
}
catch(Exception) {
if (last == -1) {
last = 0;
IQuery temp = qyContext.Clone();
while (temp.advance() != null) {
last++;
}
}
return last;
}
}
break;
case FT.FuncCount:
int i = 0;
_Opnd.setContext(qyContext.peekElement());
if (checkWhitespace) {
XPathNavigator nav;
while ((nav = _Opnd.advance())!= null) {
if (nav.NodeType != XPathNodeType.Whitespace || context.PreserveWhitespace(nav)) {
i++;
}
}
return (double)i;
}
while (_Opnd.advance()!= null) {
i++;
}
return (double)i;
case FT.FuncNameSpaceUri:
if (_Opnd != null) {
_Opnd.setContext(qyContext.peekElement());
if (( eNext = _Opnd.advance()) != null) {
return eNext.NamespaceURI;
}
else {
return String.Empty;
}
}
return qyContext.peekElement().NamespaceURI;
case FT.FuncLocalName:
if (_Opnd != null) {
_Opnd.setContext(qyContext.peekElement().Clone());
if (( eNext = _Opnd.advance()) != null) {
return eNext.LocalName;
}
else {
return String.Empty;
}
}
return qyContext.peekElement().LocalName;
case FT.FuncName :
if (_Opnd != null) {
_Opnd.setContext(qyContext.peekElement().Clone());
if (( eNext = _Opnd.advance()) != null) {
return eNext.Name;
}
else {
return String.Empty;
}
}
return qyContext.peekElement().Name;
}
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;
}
internal override Object getValue(IQuery qy)
{
InvokeFunction(qy.peekElement().Clone());
return(_ResultQuery.getValue(qy));
}
static bool compareBoolQuery1(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd2.setContext(qyContext.peekElement().Clone());
Boolean n2 = false, n1 = Convert.ToBoolean(opnd1.getValue(qyContext));
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;
}
private double Sum(IQuery qyContext) {
double sum = 0;
_qy.setContext(qyContext.peekElement().Clone());
XPathNavigator value = _qy.advance();
while (value != null) {
sum += Number(value.Value);
value = _qy.advance();
}
return sum;
}
static bool compareBoolQuery2(IQuery opnd1, IQuery opnd2, IQuery qyContext, Operator.Op op) {
XPathNavigator val1;
opnd2.setContext(qyContext.peekElement().Clone());
double n2, n1 = NumberFunctions.Number(Convert.ToBoolean(opnd1.getValue(qyContext)));
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;
}
} // toBoolean
internal Boolean toBoolean(IQuery qyContext) {
if (_qy.ReturnType() == XPathResultType.NodeSet) {
_qy.setContext(qyContext.peekElement().Clone());
XPathNavigator value = _qy.advance();
if (value != null)
return true;
else
return false;
}
else if (_qy.ReturnType() == XPathResultType.String) {
if (_qy.getValue(qyContext).ToString().Length > 0)
return true;
else
return false;
}
else if (_qy.ReturnType() == XPathResultType.Boolean)
return Convert.ToBoolean(_qy.getValue(qyContext));
else if (_qy.ReturnType() == XPathResultType.Number) {
return(toBoolean(XmlConvert.ToXPathDouble(_qy.getValue(qyContext))));
}
return false;
} // toBoolean