XPath2 | ::= | XPath <EOF> |
MatchPattern | ::= | Pattern <EOF> |
XPath | ::= | Expr |
Expr | ::= | ExprSingle ( <Comma> ExprSingle )* |
ExprSingle | ::= | ( ForExpr | QuantifiedExpr | IfExpr | OrExpr ) |
ForExpr | ::= | SimpleForClause <Return> ExprSingle |
SimpleForClause | ::= | <ForVariable> <VarName> <In> ExprSingle ( <Comma> <VariableIndicator> <VarName> <In> ExprSingle )* |
QuantifiedExpr | ::= | ( <Some> | <Every> ) <VarName> <In> ExprSingle ( <Comma> <VariableIndicator> <VarName> <In> ExprSingle )* <Satisfies> ExprSingle |
IfExpr | ::= | <IfLpar> Expr <Rpar> <Then> ExprSingle <Else> ExprSingle |
OperatorExpr | ::= | OrExpr |
OrExpr | ::= | AndExpr ( <Or> AndExpr )* |
AndExpr | ::= | ComparisonExpr ( <And> ComparisonExpr )* |
ComparisonExpr | ::= | RangeExpr ( ( ValueComp | GeneralComp | NodeComp ) RangeExpr )? |
RangeExpr | ::= | AdditiveExpr ( <To> AdditiveExpr )? |
AdditiveExpr | ::= | MultiplicativeExpr ( ( <Plus> | <Minus> ) MultiplicativeExpr )* |
MultiplicativeExpr | ::= | UnionExpr ( ( <Multiply> | <Div> | <Idiv> | <Mod> ) UnionExpr )* |
UnionExpr | ::= | IntersectExceptExpr ( ( <Union> | <Vbar> ) IntersectExceptExpr )* |
IntersectExceptExpr | ::= | InstanceofExpr ( ( <Intersect> | <Except> ) InstanceofExpr )* |
InstanceofExpr | ::= | TreatExpr ( <Instanceof> SequenceType )? |
TreatExpr | ::= | CastableExpr ( <TreatAs> SequenceType )? |
CastableExpr | ::= | CastExpr ( <Castable> SingleType )? |
CastExpr | ::= | UnaryExpr ( <CastAs> SingleType )? |
UnaryExpr | ::= | ( <UnaryMinus> | <UnaryPlus> )* ValueExpr |
ValueExpr | ::= | ( PathExpr ) |
GeneralComp | ::= | ( <Equals> | <NotEquals> | <Lt> | <LtEquals> | <Gt> | <GtEquals> ) |
ValueComp | ::= | ( <FortranEq> | <FortranNe> | <FortranLt> | <FortranLe> | <FortranGt> | <FortranGe> ) |
NodeComp | ::= | ( <Is> | <LtLt> | <GtGt> ) |
PathExpr | ::= | ( ( <Root> ( RelativePathExpr )? ) | ( <RootDescendants> RelativePathExpr ) | RelativePathExpr ) |
RelativePathExpr | ::= | StepExpr ( ( <Slash> | <SlashSlash> ) StepExpr )* |
StepExpr | ::= | ( AxisStep | FilterExpr ) |
AxisStep | ::= | ( ForwardStep | ReverseStep ) PredicateList |
ForwardStep | ::= | ( ( ForwardAxis NodeTest ) | AbbrevForwardStep ) |
ForwardAxis | ::= | ( <AxisChild> | <AxisDescendant> | <AxisAttribute> | <AxisSelf> | <AxisDescendantOrSelf> | <AxisFollowingSibling> | <AxisFollowing> | <AxisNamespace> ) |
AbbrevForwardStep | ::= | ( <At> )? NodeTest |
ReverseStep | ::= | ( ( ReverseAxis NodeTest ) | AbbrevReverseStep ) |
ReverseAxis | ::= | ( <AxisParent> | <AxisAncestor> | <AxisPrecedingSibling> | <AxisPreceding> | <AxisAncestorOrSelf> ) |
AbbrevReverseStep | ::= | <DotDot> |
NodeTest | ::= | ( KindTest | NameTest ) |
NameTest | ::= | ( <QName> | Wildcard ) |
Wildcard | ::= | ( <Star> | <NCNameColonStar> | <StarColonNCName> ) |
FilterExpr | ::= | PrimaryExpr PredicateList |
PredicateList | ::= | ( Predicate )* |
Predicate | ::= | <Lbrack> Expr <Rbrack> |
PrimaryExpr | ::= | ( Literal | VarRef | ParenthesizedExpr | ContextItemExpr | FunctionCall ) |
Literal | ::= | ( NumericLiteral | <StringLiteral> ) |
NumericLiteral | ::= | ( <IntegerLiteral> | <DecimalLiteral> | <DoubleLiteral> ) |
VarRef | ::= | <VariableIndicator> <VarName> |
ParenthesizedExpr | ::= | <Lpar> ( Expr )? <Rpar> |
ContextItemExpr | ::= | <Dot> |
FunctionCall | ::= | ( <QNameLpar> ) ( ExprSingle ( <Comma> ExprSingle )* )? <Rpar> |
SingleType | ::= | AtomicType ( <OccurrenceZeroOrOne> )? |
SequenceType | ::= | ( ( ItemType ( OccurrenceIndicator )? ) | <VoidTok> ) |
OccurrenceIndicator | ::= | ( <OccurrenceZeroOrOne> | <OccurrenceZeroOrMore> | <OccurrenceOneOrMore> ) |
ItemType | ::= | ( AtomicType | KindTest | <Item> ) |
AtomicType | ::= | ( <QNameForAtomicType> | <QNameForSequenceType> ) |
KindTest | ::= | ( DocumentTest | ElementTest | AttributeTest | SchemaElementTest | SchemaAttributeTest | PITest | CommentTest | TextTest | AnyKindTest ) |
AnyKindTest | ::= | ( <NodeLpar> | <NodeLparForKindTest> ) <RparForKindTest> |
DocumentTest | ::= | ( <DocumentLpar> | <DocumentLparForKindTest> ) ( ( ElementTest | SchemaElementTest ) )? <RparForKindTest> |
TextTest | ::= | ( <TextLpar> | <TextLparForKindTest> ) <RparForKindTest> |
CommentTest | ::= | ( <CommentLpar> | <CommentLparForKindTest> ) <RparForKindTest> |
PITest | ::= | ( <ProcessingInstructionLpar> | <ProcessingInstructionLparForKindTest> ) ( ( <NCNameForPI> | <StringLiteralForKindTest> ) )? <RparForKindTest> |
AttributeTest | ::= | ( <AttributeType> | <AttributeTypeForKindTest> ) ( ( AttribNameOrWildcard ( <CommaForKindTest> TypeName )? ) )? <RparForKindTest> |
AttribNameOrWildcard | ::= | ( AttributeName | <AnyName> ) |
SchemaAttributeTest | ::= | ( <SchemaAttributeType> | <SchemaAttributeTypeForKindTest> ) AttributeDeclaration <RparForKindTest> |
AttributeDeclaration | ::= | AttributeName |
ElementTest | ::= | ( <ElementType> | <ElementTypeForKindTest> | <ElementTypeForDocumentTest> ) ( ( ElementNameOrWildcard ( <CommaForKindTest> TypeName ( <Nillable> )? )? ) )? <RparForKindTest> |
ElementNameOrWildcard | ::= | ( ElementName | <AnyName> ) |
SchemaElementTest | ::= | ( <SchemaElementType> | <SchemaElementTypeForKindTest> | <SchemaElementTypeForDocumentTest> ) ElementDeclaration <RparForKindTest> |
ElementDeclaration | ::= | ElementName |
AttributeName | ::= | <QNameForItemType> |
ElementName | ::= | <QNameForItemType> |
TypeName | ::= | <QNameForItemType> |
Pattern | ::= | PathPattern ( ( <Union> | <Vbar> ) Pattern )? |
PathPattern | ::= | ( ( <Root> ( RelativePathPattern )? ) | ( <RootDescendants> RelativePathPattern ) | ( ( ( <Slash> | <SlashSlash> ) RelativePathPattern )? ) | RelativePathPattern ) |
RelativePathPattern | ::= | PatternStep ( ( <Slash> | <SlashSlash> ) RelativePathPattern )? |
PatternStep | ::= | ( PatternAxis )? NodeTest PredicateList |
PatternAxis | ::= | ( <AxisChild> | <AxisAttribute> | <At> ) |