private static string GetTargetPath(SelectorExpression s)
{
if (string.IsNullOrWhiteSpace(s.Target))
{
var dimChild = s.Child as DimensionExpression;
if (dimChild != null)
{
var result = GetTargetPath(dimChild);
return(result);
}
}
return(s.Target);
}
void Condition(SingleNodeTree parent, SelectorExpression parentSelector, bool? isAsOptional) {
SelectorTypes selectorType = SelectorTypes.Unspecified;
ModifierTypes modifierType;
DimensionExpression dim;
ModifierTypes modifierResult;
SelectorExpression selector = new SelectorExpression(); MultiAdd(parent, selector);
if(parentSelector != null)
{
selector.SetNodeType(parentSelector.NodeType);
selector.SetModifierType(parentSelector.Modifier);
selector.SetLeft(parentSelector.Left);
}
if (la.kind == 7) {
ComplexCondition(parent, selector, false);
} else if (StartOf(8)) {
dim = new DimensionExpression(); selector.SetRight(dim);
Primary(dim, false);
} else if (StartOf(9)) {
ExpressionTreeBase expr = null;
LiteralExpression(ref expr);
selector.SetRight(expr);
} else SynErr(48);
if (StartOf(10)) {
Modifier(out modifierResult);
selector.SetLeft(selector.Right); selector.SetRight(null); modifierType = modifierResult; selector.SetModifierType(modifierType); selector.SetNodeType(SelectorTypes.Unknown);
if (la.kind == 7) {
ComplexCondition(parent, selector, false);
} else if (StartOf(8)) {
dim = new DimensionExpression(); selector.SetRight(dim);
Primary(dim, false);
} else if (StartOf(9)) {
ExpressionTreeBase expr = null;
LiteralExpression(ref expr);
selector.SetRight(expr);
} else SynErr(49);
}
if(isAsOptional == true){
if (la.kind == 3 || la.kind == 4 || la.kind == 28) {
if (la.kind == 28) {
Get();
}
string alias = null;
AliasClause(ref alias);
selector.Target = alias;
}
}else if(isAsOptional == false){
if (la.kind == 28) {
Get();
string alias = null;
AliasClause(ref alias);
selector.Target = alias;
}
}
}
void ComplexCondition(SingleNodeTree parent, SelectorExpression selector, bool? isAsOptional) {
ConditionGroup group = new ConditionGroup(); parent.SetChild(group); ExpressionTreeBase addTo = group; SingleNodeTree condition = null; ConditionalExpression lastOperation = null;
Expect(7);
while (StartOf(4)) {
lastOperation = lastOperation ?? new AndCondition();
MultiAdd(addTo, lastOperation);
addTo = lastOperation;
var nestedselector = new SelectorExpression(selector.NodeType, selector.Modifier, selector.Left);
if (la.kind == 6 || la.kind == 36) {
if (la.kind == 6) {
Get();
} else {
Get();
}
if (la.kind == 17) {
Get();
}
NotCondition not = new NotCondition(); lastOperation.SetChild(not); lastOperation = not;
}
if (la.kind == 7) {
ComplexCondition(lastOperation, nestedselector, isAsOptional);
} else if (StartOf(6)) {
Condition(lastOperation, nestedselector, isAsOptional);
} else SynErr(56);
if (la.kind == 13 || la.kind == 14) {
Operation(out lastOperation);
}
else { lastOperation = null; }
}
Expect(8);
}
public LogicalSelector(SelectorExpression selector)
{
Selector = selector;
SingleSelector = selector.NodeType;
}
public LogicalSelector(SelectorExpression selector)
{
Selector = selector;
SingleSelector = selector.NodeType;
}
