internal override IQuery Clone()
{
MethodOperand method = (_Opnd != null) ?
new MethodOperand(_Opnd.Clone(), _FType) :
new MethodOperand(null, _FType)
;
method.checkWhitespace = this.checkWhitespace;
method.context = this.context;
return(method);
}
private Query ProcessFunction([NotNull] Function root, Query InputQuery)
{
Query query;
switch (root.TypeOfFunction)
{
case FT.FuncPosition:
query = new MethodOperand(null, root.TypeOfFunction);
return(query);
// we should be able to count how many attributes
case FT.FuncCount:
query = ProcessNode((AstNode)root.ArgumentList[0], null);
if (query is AttributeQuery)
{
return(new MethodOperand(query, FT.FuncCount));
}
//none attribute count function result in error.
break;
case FT.FuncLocalName:
case FT.FuncNameSpaceUri:
case FT.FuncName:
if (root.ArgumentList != null && root.ArgumentList.Count > 0)
{
return(new MethodOperand(ProcessNode((AstNode)root.ArgumentList[0], null),
root.TypeOfFunction));
}
return(new MethodOperand(null, root.TypeOfFunction));
case FT.FuncString:
case FT.FuncConcat:
case FT.FuncStartsWith:
case FT.FuncContains:
case FT.FuncSubstringBefore:
case FT.FuncSubstringAfter:
case FT.FuncSubstring:
case FT.FuncStringLength:
case FT.FuncNormalize:
case FT.FuncTranslate:
if (root.ArgumentList is null)
{
return(new StringFunctions(new ArrayList(), root.TypeOfFunction));
}
var count = 0;
var arg_list = new ArrayList();
while (count < root.ArgumentList.Count)
{
arg_list.Add(ProcessNode((AstNode)root.ArgumentList[count++], null));
}
return(new StringFunctions(arg_list, root.TypeOfFunction));
case FT.FuncNumber:
//case FT.FuncSum:
case FT.FuncFloor:
case FT.FuncCeiling:
case FT.FuncRound:
if (root.ArgumentList != null)
{
return(new NumberFunctions(ProcessNode((AstNode)root.ArgumentList[0], null),
root.TypeOfFunction));
}
return(new NumberFunctions(null));
case FT.FuncTrue:
case FT.FuncFalse:
return(new BooleanFunctions(null, root.TypeOfFunction));
case FT.FuncNot:
case FT.FuncLang:
case FT.FuncBoolean:
return(new BooleanFunctions(ProcessNode((AstNode)root.ArgumentList[0], null),
root.TypeOfFunction));
// Unsupported functions
//case FT.FuncID:
// Last Function is not supported, because we don't know
// how many we get in the list
// <Root> <e a="1"/> <e a="2"/></Root>
// /Root/e[last()=2]
// we will not return the first one because
// we don't if we have two e elements.
//case FT.FuncLast:
//qy = new MethodOperand(null, root.TypeOfFunction);
//return qy;
default:
throw new XPathReaderException("The XPath query is not supported.");
}
return(null);
}
private IQuery ProcessFunction(
System.Xml.XPath.Function root,
IQuery qyInput, ref bool cache, ref bool position)
{
_specialAxis = false;
IQuery qy = null;
switch (root.TypeOfFunction)
{
case FT.FuncLast:
qy = new MethodOperand(
null,
root.TypeOfFunction);
cache = true;
return(qy);
case FT.FuncPosition:
qy = new MethodOperand(
null,
root.TypeOfFunction);
position = true;
return(qy);
case FT.FuncCount:
return(new MethodOperand(
ProcessNode((AstNode)(root.ArgumentList[0]), null,
Regular_D,
Axis.AxisType.None, ref cache, ref position),
FT.FuncCount));
case FT.FuncID:
_specialAxis = true;
return(new IDQuery(
ProcessNode((AstNode)(root.ArgumentList[0]), null,
Regular_D,
Axis.AxisType.None, ref cache, ref position)));
case FT.FuncLocalName:
case FT.FuncNameSpaceUri:
case FT.FuncName:
if (root.ArgumentList != null && root.ArgumentList.Count > 0)
{
return(new MethodOperand(ProcessNode(
(AstNode)(root.ArgumentList[0]), null,
Regular_D,
Axis.AxisType.None, ref cache, ref position),
root.TypeOfFunction));
}
else
{
return(new MethodOperand(
null,
root.TypeOfFunction));
}
case FT.FuncString:
case FT.FuncConcat:
case FT.FuncStartsWith:
case FT.FuncContains:
case FT.FuncSubstringBefore:
case FT.FuncSubstringAfter:
case FT.FuncSubstring:
case FT.FuncStringLength:
case FT.FuncNormalize:
case FT.FuncTranslate:
ArrayList ArgList = null;
if (root.ArgumentList != null)
{
int count = 0;
ArgList = new ArrayList();
while (count < root.ArgumentList.Count)
{
ArgList.Add(ProcessNode(
(AstNode)root.ArgumentList[count++],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position));
}
}
return(new StringFunctions(ArgList, root.TypeOfFunction));
case FT.FuncNumber:
case FT.FuncSum:
case FT.FuncFloor:
case FT.FuncCeiling:
case FT.FuncRound:
if (root.ArgumentList != null && root.ArgumentList.Count > 0)
{
return(new NumberFunctions(
ProcessNode((AstNode)root.ArgumentList[0],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position), root.TypeOfFunction));
}
else
{
return(new NumberFunctions(null));
}
case FT.FuncTrue:
case FT.FuncFalse:
return(new BooleanFunctions(null, root.TypeOfFunction));
case FT.FuncNot:
case FT.FuncLang:
case FT.FuncBoolean:
return(new BooleanFunctions(
ProcessNode((AstNode)root.ArgumentList[0],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position), root.TypeOfFunction));
case FT.FuncUserDefined:
_hasPrefix = true;
ArgList = null;
if (!allowCurrent && root.Name == "current" && root.Prefix == "")
{
throw new XPathException(Res.Xp_InvalidPatternString, _query);
}
if (!allowKey && root.Name == "key" && root.Prefix == "")
{
throw new XPathException(Res.Xp_InvalidKeyPattern, _query);
}
if (root.ArgumentList != null)
{
int count = 0;
ArgList = new ArrayList();
while (count < root.ArgumentList.Count)
{
ArgList.Add(ProcessNode(
(AstNode)root.ArgumentList[count++],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position));
}
}
return(new XsltFunction(root.Prefix, root.Name, ArgList));
default:
throw new XPathException(Res.Xp_NotSupported, _query);
}
//return null;
}
private IQuery ProcessFunction(
System.Xml.XPath.Function root,
IQuery qyInput,ref bool cache, ref bool position) {
_specialAxis = false;
IQuery qy = null;
switch (root.TypeOfFunction) {
case FT.FuncLast :
qy = new MethodOperand(
null,
root.TypeOfFunction);
cache = true;
return qy;
case FT.FuncPosition :
qy = new MethodOperand(
null,
root.TypeOfFunction);
position = true;
return qy;
case FT.FuncCount :
return new MethodOperand(
ProcessNode((AstNode)(root.ArgumentList[0]),null,
Regular_D,
Axis.AxisType.None, ref cache, ref position),
FT.FuncCount);
case FT.FuncID :
_specialAxis = true;
return new IDQuery(
ProcessNode((AstNode)(root.ArgumentList[0]),null,
Regular_D,
Axis.AxisType.None, ref cache, ref position));
case FT.FuncLocalName :
case FT.FuncNameSpaceUri :
case FT.FuncName :
if (root.ArgumentList != null && root.ArgumentList.Count > 0)
return new MethodOperand( ProcessNode(
(AstNode)(root.ArgumentList[0]),null,
Regular_D,
Axis.AxisType.None, ref cache, ref position),
root.TypeOfFunction);
else
return new MethodOperand(
null,
root.TypeOfFunction);
case FT.FuncString:
case FT.FuncConcat:
case FT.FuncStartsWith:
case FT.FuncContains:
case FT.FuncSubstringBefore:
case FT.FuncSubstringAfter:
case FT.FuncSubstring:
case FT.FuncStringLength:
case FT.FuncNormalize:
case FT.FuncTranslate:
ArrayList ArgList = null;
if (root.ArgumentList != null) {
int count = 0;
ArgList = new ArrayList();
while (count < root.ArgumentList.Count)
ArgList.Add(ProcessNode(
(AstNode)root.ArgumentList[count++],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position));
}
return new StringFunctions(ArgList,root.TypeOfFunction);
case FT.FuncNumber:
case FT.FuncSum:
case FT.FuncFloor:
case FT.FuncCeiling:
case FT.FuncRound:
if (root.ArgumentList != null && root.ArgumentList.Count > 0)
return new NumberFunctions(
ProcessNode((AstNode)root.ArgumentList[0],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position),root.TypeOfFunction);
else
return new NumberFunctions(null);
case FT.FuncTrue:
case FT.FuncFalse:
return new BooleanFunctions(null,root.TypeOfFunction);
case FT.FuncNot:
case FT.FuncLang:
case FT.FuncBoolean:
return new BooleanFunctions(
ProcessNode((AstNode)root.ArgumentList[0],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position),root.TypeOfFunction);
case FT.FuncUserDefined:
_hasPrefix = true;
ArgList = null;
if (! allowCurrent && root.Name == "current" && root.Prefix == "") {
throw new XPathException(Res.Xp_InvalidPatternString, _query);
}
if (! allowKey && root.Name == "key" && root.Prefix == "") {
throw new XPathException(Res.Xp_InvalidKeyPattern, _query);
}
if (root.ArgumentList != null) {
int count = 0;
ArgList = new ArrayList();
while (count < root.ArgumentList.Count)
ArgList.Add(ProcessNode(
(AstNode)root.ArgumentList[count++],
null, Regular_D,
Axis.AxisType.None, ref cache, ref position));
}
return new XsltFunction(root.Prefix, root.Name, ArgList);
default :
throw new XPathException(Res.Xp_NotSupported, _query);
}
//return null;
}