QR Code

Overview

It is a port of Project Nayuki's QR Code generator library (MIT License), and its tests match that library module for module.

Use it

ziran add https://github.com/ziranlang/qrcode.git

#import "qrcode/qrcode"

using QrEcc;

code: QrCode;

Draw :: (text: string) {
    if !QrEncodeText(text, cast(QrEcc)QrEccMedium, *code) { return }
    for y: 0..code.size - 1 {
        for x: 0..code.size - 1 {
            if QrModule(*code, x, y) {
                // Paint a dark module at (x, y), inside a light border of
                // at least four modules.
            }
        }
    }
}

A QrCode is about 70 KB, so keep it in a global or on the heap rather than on a small thread stack.

Check it

make