Files
Pulse Agent 0889ee9117 feat(lib): add useLiveStream WS hook + useLiveMetrics + LiveMetricChart
feat(hooks): add useLiveStream generic WebSocket hook
  - supports websocket/sse/polling transports
  - exponential backoff reconnect with jitter
  - circular buffer with configurable size
  - typed filter callback per use case
  - manual disconnect + reconnect + error state

feat(hooks): add useLiveMetrics derived hook
  - sliding time-window cut
  - moving average (configurable window)
  - current / avg / min / max / ratePerSecond
  - zero allocations per tick (memoized)

feat(charts): add LiveMetricChart molecule (Recharts)
  - line + area variants, grid + tooltip
  - moving-average overlay (dashed)
  - ConnectionStatus atom in header
  - status bar + compact mode
  - 100% responsive, GPU via SVG ViewBox

feat(atoms): add ConnectionStatus indicator
  - 5 states: disconnected/connecting/connected/reconnecting/error
  - animated pulse, JetBrains Mono, pill style
  - exported helpers: formatLatency / formatBytes

docs(pkg): bump v0.1.0 → v0.2.0, add recharts peerDep
2026-05-20 22:59:10 -03:00
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Utilities for determining whether characters belong to character classes defined by the XML specs.

Organization

It used to be that the library was contained in a single file and you could just import/require/what-have-you the xmlchars module. However, that setup did not work well for people who cared about code optimization. Importing xmlchars meant importing all of the library and because of the way the code was generated there was no way to shake the resulting code tree.

Different modules cover different standards. At the time this documentation was last updated, we had:

  • xmlchars/xml/1.0/ed5 which covers XML 1.0 edition 5.
  • xmlchars/xml/1.0/ed4 which covers XML 1.0 edition 4.
  • xmlchars/xml/1.1/ed2 which covers XML 1.0 edition 2.
  • xmlchars/xmlns/1.0/ed3 which covers XML Namespaces 1.0 edition 3.

Features

The "things" each module contains can be categorized as follows:

  1. "Fragments": these are parts and pieces of regular expressions that correspond to the productions defined in the standard that the module covers. You'd use these to build regular expressions.

  2. Regular expressions that correspond to the productions defined in the standard that the module covers.

  3. Lists: these are arrays of characters that correspond to the productions.

  4. Functions that test code points to verify whether they fit a production.