[Barcode] Specification of barcode-types

[Alessandro Rubini]

Hi again.

> I am looking for specifications of barcode-types (e.g. code 39).
> Can someone point me to documentation - Thanks in advance.

I found it at Russ Adam's site. But the most complete information
is in HP's site, linked from Adam's one.

	http://www.adams1.com/pub/russadam/upccode.html
is a starting point.

These are the specs for encodings I've been contributed (but will
only upload 0.96 after nov 15th, I have a heavy deadline for that day).

- plessey.c implements Plessey code as per 
  http://www.adams1.com/pub/russadam/plessy.html with mandatory CRC

- msi.c implements MSI code as per
  http://www.semiconductor.agilent.com/barcode/sg/Misc/msi_code.html

- codabar.c implements Codabar code as per
  http://www.semiconductor.agilent.com/barcode/sg/Misc/codabar.html

Hope this helps
/alessandro