QrCode-rs

QR code and Micro QR code encoder in Rust. Documentation.

Cargo.toml

toml [dependencies] qrcode-rs = "0.1"

The default settings will depend on the image crate. If you don't need image generation capability, disable the default-features:

toml [dependencies] qrcode = { version = "0.1", default-features = false }

Example

Image generation

```rust use qrcode_rs::QrCode; use image::Luma;

fn main() { // Encode some data into bits. let code = QrCode::new(b"01234567").unwrap();

// Render the bits into an image.
let image = code.render::<Luma<u8>>().build();

// Save the image.
image.save("/tmp/qrcode.png").unwrap();

} ```

Generates this image:

String generation

```rust use qrcode_rs::QrCode;

fn main() { let code = QrCode::new(b"Hello").unwrap(); let string = code.render::() .quietzone(false) .moduledimensions(2, 1) .build(); println!("{}", string); } ```

Generates this output:

```none

######## ########

## ## ##

###### ## ## ## ## ## ######

###### ## ## ## ## ######

###### ## #### ## ## ######

## #### ## ##

######## ## ## ##

            ##  ##

########## ## ##

  ##        ##    ########    ####  ##
##########    ####  ##  ####  ######
##    ##  ####  ##########    ####

###### ########## ## ## ## ## ## ## ##

######## ## ## ## ##

## ## ##

###### ## ## ## ## ##

###### ## #### ##########

###### ## #### ## ####

## ## ########

######## #### ## ##

```

SVG generation

```rust use qrcoders::{QrCode, Version, EcLevel}; use qrcoders::render::svg;

fn main() { let code = QrCode::withversion(b"01234567", Version::Micro(2), EcLevel::L).unwrap(); let image = code.render() .mindimensions(200, 200) .darkcolor(svg::Color("#800000")) .lightcolor(svg::Color("#ffff80")) .build(); println!("{}", image); } ```

Generates this SVG:

Unicode string generation

```rust use qrcoders::QrCode; use qrcoders::render::unicode;

fn main() { let code = QrCode::new("mow mow").unwrap(); let image = code.render::() .darkcolor(unicode::Dense1x2::Light) .lightcolor(unicode::Dense1x2::Dark) .build(); println!("{}", image); } ```

Generates this output:

text █████████████████████████████ █████████████████████████████ ████ ▄▄▄▄▄ █ ▀▀▀▄█ ▄▄▄▄▄ ████ ████ █ █ █▀ ▀ ▀█ █ █ ████ ████ █▄▄▄█ ██▄ ▀█ █▄▄▄█ ████ ████▄▄▄▄▄▄▄█ ▀▄▀ █▄▄▄▄▄▄▄████ ████▄▀ ▄▀ ▄ █▄█ ▀ ▀█ █▄ ████ ████▄██▄▄▀▄▄▀█▄ ██▀▀█▀▄▄▄████ █████▄▄▄█▄▄█ ▀▀▄█▀▀▀▄█▄▄████ ████ ▄▄▄▄▄ █ ▄▄██▄ ▄ ▀▀████ ████ █ █ █▀▄▄▀▄▄ ▄▄▄▄ ▄████ ████ █▄▄▄█ █▄ █▄▀▄▀██▄█▀████ ████▄▄▄▄▄▄▄█▄████▄█▄██▄██████ █████████████████████████████ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀