QRGenJS

https://cyphrme.github.io/QRGenJS

We plan on migrating to Paul's library when we get time https://github.com/paulmillr/qr

Code used for https://cyphr.me/qrgen.

An unofficial fork with minor tweaks to Nayuki.
https://github.com/nayuki/QR-Code-generator/tree/master/typescript-javascript

Why make a fork? See this 2022 issue: nayuki/QR-Code-generator#155 (comment)

Development

The demo (index.html) is with an older version, but it works and since the new version works differently we're keeping the old version.

1.8.0 Demo

All links are in this repo

• Cyphrme changes 1.8.0 (Live page)
• Unmodified Nayuki with compiling to get it to work (Live page)

The root files do not use 1.8.0, but to build it, this is how it is done:

(
	cd 1.8.0
tsc --strict --lib DOM,DOM.Iterable,ES6 --target ES6 *.ts 
esbuild qrcodegen.js --minify --outfile=qrcodegen.min.js && cat module_append.txt >> qrcodegen.min.js
)

UMD Module

See https://github.com/Cyphrme/UMD_tutorial. In short, esbuild has a bug with UMD so modules have to be manually done. See build.sh.

New

Truncate UMD from file to add it back in after minification.

file=urlform.js match="//////////////////////////////Regex_match_for_truncation_for_umd" line_num=$(grep -n "$match" $file | cut -d : -f 1) echo "Line number for truncation: $line_num" head -n $(($line_num - 1)) $file > urlform_nomod.min.js # min.js avoids watch loop.

esbuild urlform_nomod.min.js --bundle --format=esm --platform=browser --minify --sourcemap --outfile=urlform.min.js #cat module_append.js >> urlform.min.js

Other Resources

Great article about how QR codes work: https://typefully.com/DanHollick/qr-codes-T7tLlNi

Why nayuki and not others?

Google's top result for "qrcode javascipt", https://github.com/davidshimjs/qrcodejs, is junk. It has alphanumeric encoding issues and the library hasn't been updated in 5 years despite a stream of issues.

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Attribution, Trademark Notice, and License

QRGenJS Additions by Cyphr.me 2022 https://github.com/Cyphrme/QRGenJS

qrgen Copyright (c) Project Nayuki. (MIT License) https://www.nayuki.io/page/qr-code-generator-library

"Cyphr.me" is a trademark of Cypherpunk, LLC. The Cyphr.me logo is all rights reserved Cypherpunk, LLC and may not be used without permission.