node-red-contrib-image-tools icon indicating copy to clipboard operation
node-red-contrib-image-tools copied to clipboard

Barcode Decoder (QR Code) fails with non ASCII characters

Open regystro opened this issue 2 years ago • 3 comments

Hi.

The QR code generator works as expected with and without ASCII chars, but the generated code throws an error when it contains non ASCII chars passing through the Barcode Decoder.

Please, see this demo flow:

[{"id":"726be439f04a51af","type":"inject","z":"e015c11646c14d2c","name":"Non ASCII chars","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"áéíóú","payloadType":"str","x":200,"y":620,"wires":[["aefefb8db0fd0bda"]]},{"id":"aefefb8db0fd0bda","type":"change","z":"e015c11646c14d2c","name":"options","rules":[{"t":"set","p":"options","pt":"msg","to":"{\t   \"barcolor\": \"0000ff\",\t   \"backgroundcolor\": \"ffffff\",\t   \"rotate\": \"N\",\t   \"showborder\": true,\t   \"padding\": 2,\t   \"eclevel\":\"H\"\t}","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":440,"y":600,"wires":[["c37a76f0a187992c"]]},{"id":"c37a76f0a187992c","type":"Barcode Generator","z":"e015c11646c14d2c","name":"","data":"payload","dataType":"msg","barcode":"qrcode","barcodeType":"barcode","options":"options","optionsType":"msg","sendProperty":"payload","props":[],"x":590,"y":600,"wires":[["60207962e5f83bd2","890553f5413d37aa"]]},{"id":"60207962e5f83bd2","type":"image viewer","z":"e015c11646c14d2c","name":"","width":"160","data":"payload","dataType":"msg","active":true,"x":770,"y":600,"wires":[[]]},{"id":"890553f5413d37aa","type":"Barcode Decoder","z":"e015c11646c14d2c","name":"","data":"payload","dataType":"msg","tryharder":"true","tryharderType":"bool","QR_CODE":true,"DATA_MATRIX":false,"PDF_417":false,"EAN_8":false,"EAN_13":false,"CODE_39":false,"CODE_128":false,"ITF":false,"RSS_14":false,"x":810,"y":540,"wires":[["728e8cd8e4c09dbf"]]},{"id":"728e8cd8e4c09dbf","type":"debug","z":"e015c11646c14d2c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1010,"y":540,"wires":[]},{"id":"30e72797991b3d32","type":"inject","z":"e015c11646c14d2c","name":"ASCII chars","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"aeiou","payloadType":"str","x":190,"y":560,"wires":[["aefefb8db0fd0bda"]]}]

Is this an issue or am I missing any option?

Thank you.

regystro avatar Mar 30 '22 14:03 regystro

More test results:

If the string only contains accented characters it throws an error, but if you add an emoji it works:

😊áéíóú

Seems that the emoji triggers the correct decoding, while chars like "¿", "ü"... by themselves doesn't.

regystro avatar Mar 30 '22 16:03 regystro

Hi @regystro my apologies for not replying earlier (new job, very busy etc)

It is odd that emojies are decoded but not accented characters. I suspect this is an issue with the upstream library I use to decode.

I will mark this as an upstream issue for now but will try to get a closer look to determine if there are any extra settings I could expose to handle it.

Steve-Mcl avatar Aug 23 '22 08:08 Steve-Mcl

Don't worry @Steve-Mcl, and thanks for answering and having a look at it. Congrats on your new job, BTW.

regystro avatar Aug 24 '22 09:08 regystro