Asking for FNC1 support for gs1 datamatrix generation :)

[xjpf]

Adding to data any kind of bytes using any encodings doesn't work. Some scanners will ignore error, some will found 'è', etc, but none will say that they have found FNC1. Tested every commit here and many other things
Byte '\x1d' as GS special delimeter scanners do accept though..
According to some investigation, that FNC1 thing should somehow be injected in datamatrix generation formula or via other tricky way.
bwipp can do it somehow, but it's generation time is awful: ~1 dtmx per sec. Also it doesn't have option to put different delimeters within one dmtx.
So pylibdmtx is the last hope :)
Kindly ask for adding FNC1 support :)

[MaxBromberg]

My attempts to create GS1 data matricies with pylibdmtx have similarly failed. I was unable to replicate this comment's apparent success with python 3.10, though this might from a failed package install.

If I simply pip install "git+https://github.com/NaturalHistoryMuseum/pylibdmtx.git@ba6f40b42841385c330b94041acde5e048e2a4b2" then the pylibdmtx\libdmtx-64.dll is missing, and I have not found success trying either various prefixes (\xe8, \x1d, ]d2) nor replicating the efforts here or here.

[UlanKurmanbekov]

prefixes (\xe8, \x1d, ]d2)

b"\x1d" doesn't help @MaxBromberg?

Here is a generated Data Matrix with b"\x1d". Isn't this a GS1 Data Matrix?

[MaxBromberg]

Unfortunately not, as the GS1 Healthcare Barcode Scanner reports in this screenshot. Evidently the FNC1 is never a part of the raw encoded string.

[UlanKurmanbekov]

Didn't know about HBSA, thanks @MaxBromberg