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Character Set #83

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mctrivia opened this issue Apr 2, 2016 · 1 comment

mctrivia commented Apr 2, 2016

QR Codes have 4 available character sets. To make smaller it should be checked if there are:

Only numbers
Alphanumeric: 0–9, A–Z (upper-case only), space, $, %, *, +, -, ., /, :

before falling back to binary option.
https://en.wikipedia.org/wiki/QR_code#Storage

zamicol commented Nov 20, 2019

Yes! Absolutely!

Other libraries do this.

Here's one:
https://github.com/nayuki/QR-Code-generator
demo: https://www.nayuki.io/page/qr-code-generator-library
code: https://www.nayuki.io/res/qr-code-generator-library/qrcodegen.js

Here's another:
https://github.com/kazuhikoarase/qrcode-generator
demo:https://kazuhikoarase.github.io/qrcode-generator/js/demo/
code: https://github.com/kazuhikoarase/qrcode-generator/blob/master/js/qrcode.js

Deekshant15 mentioned this issue

Update to support Numeric mode data encoding #253

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