Reference — Frothy

Home Reference

Reference

Exact behavior for the Frothy language, CLI, editor, project shape, persistence, hardware words, and C boundary.

Use the reference when you need the exact surface rather than the teaching arc. If you are new, start with Install or Getting Started first.

The main sections are:

Word reference for syntax, operators, values, state, and core inspection words
Interactive profile for REPL behavior, multiline input, interrupts, and inspection
Image and persistence for save, restore, boot, and recovery
CLI for the current command-line path
Editor for VS Code and browser/editor notes
Project and build for frothy.toml, frothy init, build, flash, and library shape
Hardware for ESP32 board words and peripheral surfaces
FFI for build-time C/native extension support

Core syntax, operators, state, collections, and prompt-facing built-ins.

REPL behavior, multiline input, interrupts, inspection, and the control-session path.

Base versus overlay, rebinding, `save`, `restore`, `dangerous.wipe`, and `boot`.

The current `frothy` command surface: bootstrap, doctor, flash, connect, session, send, build, and recovery.

VS Code and browser editor support for connecting, sending source, inspecting words, and interrupting the board.

The Frothy/C boundary, from runtime registration to project-local bindings.

ESP32 board words for GPIO, ADC, timing, UART, I2C, and PWM.

Current project files, `frothy init`, library manifests, build output, and flashing policy.