v1.0.0

First release of xpathway — a clean, standalone, XPath 1.0-compliant
evaluation library in zero-dependency ESM JavaScript, driving the browser's DOM
Level 3 XPath API on top of an injected DOM adapter (no Node implementation is
imported). Built to replace the unmaintained wgxpath blob in capybara-simulated
while staying reusable on any tree.

Features

• Full XPath 1.0: all 13 axes, every node test, predicates, the complete
  operator set and type system (node-set / boolean / number / string with the
  spec coercion rules), and the entire core function library.
• Browser-compatible API: createEvaluator(adapter) returns
  evaluate / createExpression / createNSResolver, with results as an
  XPathResult (full type constants and accessors). Grammar errors surface as
  SyntaxError; host exception constructors are injectable.
• HTML semantics (§6): in HTML documents, unprefixed element/attribute name
  tests match localName ASCII case-insensitively (scoped to the XHTML
  namespace for elements); XML/XHTML and prefixed tests stay case-sensitive.
• Performance: a parse cache, absolute-path hoisting memoized per evaluation
  (//label[…]/@for runs once, not once per candidate), string-value
  memoization, and iterative (stack-safe) axes.
• Distribution: pure ESM, zero runtime dependencies, no Node built-ins —
  bundleable with esbuild and runnable in a bare V8; no Date.now() /
  Math.random() on the evaluation path.

Testing

• A staged conformance suite (test/conformance/): an XPath 1.0 corpus plus the
  real shapes Capybara's xpath gem emits, and a vendored web-platform-tests
  XPath case via a zero-dependency testharness shim. CI runs on Node 20/22/24.

MIT licensed.