Crate qrcode_core 

Zero-dependency QR code encoding core (no_std + alloc) for qrcode-rs.

Holds the encoding primitive layer — bit-stream construction (bits::Bits), mode optimization (optimize), Reed–Solomon error correction (ec), and module-grid canvas drawing (canvas) — plus the shared types (types) and checked-cast helpers (cast), with no external crate dependencies. The qrcode-rs facade crate depends on this and re-exports its public surface; embedders wanting only the encoder (no rendering or image dependencies) can depend on qrcode-core directly.

Re-exports

pub use cast::As;

pub use cast::Truncate;

pub use mode::AlphanumericMode;

pub use mode::ByteMode;

pub use mode::EncodingMode;

pub use mode::KanjiMode;

pub use mode::NumericMode;

pub use plugin::DynEncoder;

pub use plugin::DynRenderer;

pub use plugin::EncodeConfig;

pub use plugin::EncodedOutput;

pub use plugin::EncoderFactory;

pub use plugin::ModuleGrid;

pub use plugin::PluginError;

pub use plugin::PluginRegistry;

pub use plugin::PostProcessor;

pub use plugin::QrPlugin;

pub use plugin::RenderConfig;

pub use plugin::RenderOutput;

pub use plugin::RendererFactory;

pub use traits::Builder;

pub use traits::Encoder;

pub use traits::ModuleSource;

pub use traits::ModuleStorage;

pub use traits::ModuleView;

pub use traits::QrCodeRef;

pub use traits::QrSymbol;

pub use traits::Renderer;

pub use types::Color;

pub use types::EcLevel;

pub use types::Mode;

pub use types::QrError;

pub use types::QrResult;

pub use types::Version;

pub use version::ConstVersion;

pub use version::StaticVersion;

Modules

bits

Bit-level data encoding for QR codes.

canvas

QR code canvas construction and masking.

cast

Checked narrowing conversions and truncation helpers used across the encoder.

ec

Reed-Solomon error correction for QR codes.

mode

Type-level QR encoding modes.

optimize

Data mode segmentation optimizer.

plugin

Explicit plugin registry and object-safe extension points.

traits

Core extension traits for encoding, rendering, and module-grid storage.

types

Core data types: module Color, EcLevel, Version, Mode, the QrError / QrResult error types, and string-parsing helpers.

version

Compile-time QR version markers.