[reportlab-users] Asterisks in barcode human readable text

Adrian Klaver adrian.klaver at aklaver.com
Mon Apr 13 13:58:03 EDT 2015


On 04/13/2015 10:20 AM, Andy Robinson wrote:
> Hi Kumar,
>
> It sounds reasonable to me, as the text is for humans and not bar code
> readers ;-)
>
> The problem here is that nobody at ReportLab is a bar code specialists
> - quite a lot of this code was contributed or copied from other
> libraries years ago - and we don't know whether it is actually correct
> or not to allow these characters in this position.  If you have time
> to check the specifications, and/or there is evidence that other
> libraries do this, we could modify humanText to make life easier.

Well from the sidelines and having debugged barcode issues I would say 
all characters specified in the code should be shown in human readable 
output. This is what is done for the checksum in the code39 code. So the 
principle of least surprise would seem to be that if stop = 1 it should 
be seen. My 2 cents.

>
> - Andy
>
>
>

-- 
Adrian Klaver
adrian.klaver at aklaver.com


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