Module xpath 

XPath2 evaluation engine

This module provides the full XPath 2.0 parser, binder, and evaluator.

Core Types (re-exported from navigator)

• DomNavigator - Trait for cursor-based XML navigation
• DomNodeType - Node type enumeration (Element, Text, Attribute, etc.)
• XmlNodeOrder - Document order comparison result
• NamespaceAxisScope - Scope filter for namespace axis traversal

Parser

• ast - AST node types for XPath expressions
• arena - Arena-based storage for AST nodes
• lexer - Stateful tokenizer with lookahead
• parser - LALRPOP-based parser

Re-exports

pub use crate::navigator::DomNavigator;

pub use crate::navigator::DomNodeType;

pub use crate::navigator::NamespaceAxisScope;

pub use crate::navigator::NavigatorError;

pub use crate::navigator::RoXmlNavigator;

pub use crate::navigator::TypedValue;

pub use crate::navigator::XmlNodeOrder;

pub use self::api::EvalValue;

pub use self::api::ExternalVar;

pub use self::api::TypedEvaluator;

pub use self::api::XPathEvaluator;

pub use self::api::XPathExpr;

pub use self::arena::AstArena;

pub use self::arena::AstNodeId;

pub use self::arena::SourceSpan;

pub use self::ast::AstNode;

pub use self::axis_iterators::AncestorAxis;

pub use self::axis_iterators::AttributeAxis;

pub use self::axis_iterators::AxisTraversal;

pub use self::axis_iterators::ChildAxis;

pub use self::axis_iterators::ChildOverDescendantsNodeIterator;

pub use self::axis_iterators::DescendantNodeIterator;

pub use self::axis_iterators::FollowingNodeIterator;

pub use self::axis_iterators::FollowingSiblingAxis;

pub use self::axis_iterators::NamespaceAxis;

pub use self::axis_iterators::ParentAxis;

pub use self::axis_iterators::PrecedingNodeIterator;

pub use self::axis_iterators::PrecedingSiblingAxis;

pub use self::axis_iterators::SelfAxis;

pub use self::axis_iterators::SequentialAxisNodeIterator;

pub use self::axis_iterators::SpecialChildNodeIterator;

pub use self::axis_iterators::SpecialDescendantNodeIterator;

pub use self::bind::bind_node;

pub use self::context::DynamicContext;

pub use self::context::NameBinder;

pub use self::context::VarRef;

pub use self::context::VarSlotId;

pub use self::context::VarStore;

pub use self::context::XPathContext;

pub use self::error::XPathError;

pub use self::eval::eval_node;

pub use self::functions::FunctionArity;

pub use self::functions::FunctionId;

pub use self::functions::FunctionSignature;

pub use self::functions::XPathValue;

pub use self::functions::FUNCTION_REGISTRY;

pub use self::item_set::ItemSet;

pub use self::item_set::ItemSetIter;

pub use self::item_set::ItemSetIterMut;

pub use self::item_set::XPathComparer;

pub use self::item_set::XPathEqualityComparer;

pub use self::iterator::BufferedNodeIterator;

pub use self::iterator::DocumentOrderNodeIterator;

pub use self::iterator::EmptyIterator;

pub use self::iterator::ItemIterator;

pub use self::iterator::PositionFilterNodeIterator;

pub use self::iterator::RangeIterator;

pub use self::iterator::VecNodeIterator;

pub use self::iterator::XmlItem;

pub use self::iterator::XmlItemRef;

pub use self::iterator::XmlNodeIterator;

pub use self::lexer::Lexer;

pub use self::lexer::Token;

pub use self::node_test::matches_name_test;

pub use self::node_test::matches_sequence_type;

pub use self::node_test::NodeTest;

pub use self::parser::parse;

pub use self::parser::parse_with_options;

pub use self::parser::parse_xpath10;

pub use self::parser::parse_xpath20;

pub use self::parser::ParseError;

pub use self::parser::ParsedXPath;

pub use self::timsort::timsort;

pub use self::timsort::timsort_by;

pub use self::timsort::timsort_slice;

pub use self::timsort::timsort_slice_by;

pub use self::timsort::timsort_slice_with_comparer;

pub use self::timsort::timsort_with_comparer;

pub use self::timsort::FnComparer;

pub use self::timsort::IComparer;

pub use self::timsort::OrdComparer;

pub use self::timsort::ReverseComparer;

pub use self::tree_comparer::TreeComparer;

Modules

api

High-level, ergonomic XPath evaluation API.

arena

Arena-based storage for XPath AST nodes.

ast

XPath 2.0 Abstract Syntax Tree (AST) definitions. This module defines the AST node types for the XPath 2.0 parser. All types are stubbed (fields defined but minimal behavior) to enable parser development. Full evaluation semantics will be added later.

atomize

Atomization operations for XPath evaluation.

axis_iterators

XPath axis iterators aligned with the C# XPath20Api implementation.

bind

XPath AST binding phase.

boolean

Boolean operations for XPath evaluation.

cast

Type casting operations for XPath evaluation.

context

XPath static and dynamic context definitions.

error

XPath error types.

eval

XPath AST evaluation phase.

functions

XPath 2.0 function registry and dispatch.

item_set

ItemSet - A dynamic collection for XPath items with sorting support.

iter_adapters

Iterator adapters for XPath evaluation.

iterator

XPath2 item and node iterator abstractions.

lexer

XPath 2.0 Lexer with stateful lookahead.

node_ops

Node operations for XPath evaluation.

node_test

XPath node test matching helpers.

operators

XPath operator evaluation helpers.

parser

XPath 2.0 Parser module.

quantified

Quantified expression support for XPath evaluation.

sequence_ops

Sequence operations for XPath evaluation.

string_ops

String operations for XPath evaluation.

timsort

A stable, adaptive, iterative mergesort that requires far fewer than n lg(n) comparisons when running on partially sorted arrays, while offering performance comparable to a traditional mergesort when run on random arrays. Like all proper mergesorts, this sort is stable and runs O(n log n) time (worst case). In the worst case, this sort requires temporary storage space for n/2 object references; in the best case, it requires only a small constant amount of space.

tree_comparer

XPath tree comparison helpers.

type_info

Type information utilities for XPath evaluation.

Structs

XPathParseOptions

Options for XPath parsing.

Enums

XPathMode

Selects XPath language version for parsing and evaluation.