Scan CODE_39 EXTENDED

[igor-kulikov]

Hi,

could you inform is it possible to easily teach library to scan Code39_Extended barcode format?

like base ZXing library by providing configuration property USE_CODE_39_EXTENDED_MODE

thanks in advance

[ericblade]

I really don't know the answer to that -- I haven't tried to implement any new readers.

It looks like it might be simple -- https://help.accusoft.com/BarcodeXpress/v13.2/BxNodeJs/code_39_extended.html indicates that the extended codes are all some double-byte version of the regular code 39 encoding. If that's the case, can probably just hit it with the regular code 39 scanner, and do a quick pass over the results and reinterpret anything that has a 2-byte character code.

Here is a complete chart of Code 39 codes, as well as the Code 39 extended https://www.barcodefaq.com/1d/code-39/

I would definitely welcome a patch with support and tests!

At the very least, if you could post some tests with Code 39 Extended, we could see if Code 39 will read them as something