leuven65 / qrcode-elisp

Integrate QRCode generating and decoding to Emacs

qrcode-elisp

About

“qrcode-elisp” is Emacs elisp package for QRCode generating and decoding.

It containts the features:

1. generating QRCode from text to image.
2. decoding the QRCode image (or from clipboard) to text.

Snapshot

1. generate QR code by using the command “qrcode-elisp-generate-qrcode”

   

   

2. decode QR code from image of clipboard by using the command “qrcode-elisp-decode-qrcode-from-clipboard”

   

Installation

pre-require

Please intall Python https://www.python.org/ and Pip, and “python3” is preferred.

install

1. Clone this git repo to “${user-emacs-directory}/packages/qrcode-elisp”, and add folowing lines to your Emacs config file:

   (use-package qrcode-elisp
     :defer t
     :ensure nil ; it is github package
     ;; If the path is relative, it is expanded within `user-emacs-directory'
     :load-path "packages/qrcode-elisp"
     ;; :custom
     ;; (qrcode-elisp-python-command "python3")
     ;; (qrcode-elisp-text-coding 'gb2312)
     :init
     (let ((pkg-name "qrcode-elisp"))
       (ignore-errors
         (package-generate-autoloads pkg-name
                                     (expand-file-name (concat "packages/" pkg-name)
                                                       user-emacs-directory)))
       (load (concat pkg-name "-autoloads.el")))
     )
       

2. Set python command for your system
   

   ;; for Linux
   (setq qrcode-elisp-python-command "python3")
   ;; for win10
   ;; (setq qrcode-elisp-python-command "py")
       

3. In “M-x”, run the command ”qrcode-elisp-install-enviroment”.
   it will install the python package “qrcode” for qrcode generating, “pyzbar” for qrcode decoding, and “pillow” for copying image from system clipboard.

   (qrcode-elisp-install-enviroment)
       

Usage

Commands provided by this package:

Command		Usage
qrcode-elisp-generate-qrcode	suggested to use	Generate QRCode from current active region or user input, and show the generated image in the buffer ”QR Code” in org-mode
qrcode-elisp-generate-qrcode-and-open		As same as qrcode-elisp-generate-qrcode, but show the image directly.
qrcode-elisp-decode-qrcode-from-clipboard	suggested to use	Decode the QRCode image from clipboard, and output the result to the buffer ”QR Code” in org-mode
qrcode-elisp-decode-qrcode-from-image		Decode the QRCode image from clipboard, and return the text directly (show in minibuffer).
qrcode-elisp-install-enviroment		Install the python packages required by this package.

variables

variable	Usage
qrcode-elisp-python-command	The python command in the system