$ show kiwiirc/irc-framework
This repository is a mature, well-architected IRC framework for Node.js, providing a high-level event-driven API for building IRC clients and bots. The codebase is structured around a core `Client` class that manages connection lifecycle, handles IRC protocol (including IRCv3 extensions like SASL, message tags, batch, etc.), and exposes a flexible middleware system for processing raw and parsed events. The architecture separates concerns into distinct modules: connection transport (TCP/TLS, WebSocket, SOCKS), IRC line parsing, command routing, network information tracking, and user/channel state management. The library demonstrates deep understanding of the IRC protocol and delivers a robust, test-covered implementation suitable for production use. Notable design patterns include an event emitter architecture, middleware pipeline, and stream-based channel message relay.
The LLM identified 5 files worth highlighting for reuse:
A performant, zero-regex parser that tokenizes raw IRC protocol lines into structured IrcMessage objects (tags, prefix, command, params). It handles IRCv3 message tags, prefix parsing (nick!ident@host), and trailing parameter detection. This component is self-contained (only depends on messagetags and helpers) and could be extracted into any IRC-related project to replace brittle regex-based parsing.
Implements the IRCv3 message tags specification (encode/decode) with proper escaping of special characters (backslash, semicolon, space, newline, carriage return). Provides efficient lookup tables for decoding and encoding. The component is fully self-contained, has comprehensive tests, and can be reused in any IRC client or tool that needs to handle '@' prefixed message tags.
A collection of three small but non-trivial utility functions: parseMask (split 'nick!ident@host' string), parseWhoFlags (parse WHO reply flags into structured object with away status, channel modes, operator/registered flags), and splitOnce (split a string on the first occurrence of a separator). These are self-contained enough to be copied or imported into any IRC-related project.
A generator-based line breaking algorithm that respects Unicode grapheme clusters and provides configurable byte limits, with graceful fallback from word breaking to grapheme breaking to codepoint breaking. Uses grapheme-splitter library. The logic is cleanly separated and could be reused in any text messaging system that needs to split long messages while preserving visual characters (e.g., emoji, combining marks).
A robust TCP/TLS socket transport layer that handles connection lifecycle, reconnection with exponential backoff, SOCKS proxy support, and buffered line-by-line input parsing. It correctly manages socket events (connect, data, close, error, timeout) and provides clear hooks for TLS handshake and raw socket events. This component is reusable as a base for any IRC connection handling, though it depends on node's net/tls modules.