All chapters21
HHY V1.7.1
Learn HHY
Start with the interpreter, master Flow and the system standard library, then learn the local process-extension and database integration delivered in V1.7.1. The manual clearly separates implemented behavior from future plans.
Watch the video course · 16 practical lessons
Guide
Learn HHY in order and complete common system-automation tasks with working examples.
Quick Start
Install HHY, run your first Flow, and learn the daily commands in five minutes.
Read chapter02Language Basics
Variables, values, functions, conditions, loops, and scope.
Read chapter03Flow and Streams
Understand pipe injection, lazy streams, and single-consumption semantics.
Read chapter04Files and Paths
Walk directories, read text, and write results safely.
Read chapter05Text, JSON, and CSV
Process UTF-8 text, regular expressions, and structured data.
Read chapter06Processes and System
Run commands, consume output, and inspect system state.
Read chapter07HTTP
Build requests, configure timeout and retry, and process responses.
Read chapter08Parallel and Watch
Bounded parallel work, cancellation, and filesystem event streams.
Read chapter09Modules and Errors
Organize code, propagate structured errors, and unwind resources reliably.
Read chapter10Script Examples
Use a single script for a focused task: filtering logs, calling APIs, processing files, or transforming data.
Read chapter11Web Runtime
Build persistent JSON APIs, streaming services, and multi-worker applications with HHY.
Read chapter12Controlled Concurrency and Atomicity
Seven experimental APIs in 1.7.1: ownership, effects, transaction and cancellation boundaries, with runnable examples.
Read chapterReference
Look up exact syntax, standard-library symbols, and command behavior.
Complete Syntax Reference
V1.7.1 lexical rules, literals, operators, statements, closures, and module syntax.
Open reference14Standard Library Function Index
Signatures and purposes for all 128 V1.7.1 core callables in the runtime Registry.
Open reference15CLI Reference
Run, check, format, use the REPL, inspect dry-run plans, and profile performance.
Open referenceExtensions
Learn V1.7.1 signed extension distribution, process extensions, editor tooling, and Runtime governance.
Extension System
The v1.7.1 process-extension model: the signed official Registry, source builds, manifests, capabilities, Protocol 1, and callable registration.
Read extension guide17Database Extension Guide
Database 1.0.0: MySQL/PostgreSQL pools, remote TLS, transactions, prepared statements, cursors, exact types and HHY Streams. Requires HHY 1.5.0 or newer; compatibility with 1.7.0 is verified.
Read extension guide18HTML Extension and Crawler Framework
Combine the official HTML extension with a safe frontier for URL normalization, discovery, recursive deduplication, and bounded static crawling.
Read extension guideRoadmap
Review V1.7.1 verified language and VM capabilities, design boundaries, and explicitly labeled future work.
Tooling
Install editor language support generated in sync with the HHY Lexer.
Language Reports
Cross-release reports on language governance, performance baselines, Runtime health, compatibility, and engineering quality; versions identify sampling points only.