How to use

EAN-13 has 3 symbol sets A, B, and C. It looks like the following: *XXXXXX#CCCCCC*
•	* start/end bar (as common for Code 39)
•	# middle bar
•	X a symbol of set A or B (see below)
•	C a symbol of set C

Symbol sets
The symbol sets are placed on an international keyboard layout:
A.	Number row: 1234567890
B.	B:Middle character row: asdfghjkl;
C.	C:Top character row: qwertyuiop

The first digit of an EAN-13 barcode does not directly correspond to a symbol. It determines which symbol set for the following 6 digits is to be used. The following listing shows the symbol set combinations for the starting digits:
1.	AABABB
2.	AABBAB
3.	AABBBA
4.	ABAABB
5.	ABBAAB
6.	ABBBAA
7.	ABABAB
8.	ABABBA
9.	ABBABA

If the starting digit is 0, or if you want to encode a UPC-A, only use symbol set A.



Examples
The spaces are only inserted for clarity.
•	EAN number → symbol set → What you type with the font
•	2 012345 67890 3 → *AABBAB#CCCCCC* → *01sd4g#yuiope*
•	2 230154 67890 1 → *AABBAB#CCCCCC* → *23;a5f#yuiopq*
•	9 786789 12345 1 → *ABBABA#CCCCCC* → *7kh7k9#qwertq*
•	9 789876 12345 7 → *ABBABA#CCCCCC* → *7kl8j6#qwertu*