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Add option to include check digit in UPC/EAN data, and validate before encoding

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Fixes #5
This commit is contained in:
Robin Stuart
2016-10-28 19:43:08 +01:00
parent 9024006ca8
commit d875318b3d
5 changed files with 253 additions and 141 deletions
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16
docs/manual.txt
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@ -236,6 +236,7 @@ Numeric Value | Barcode Name
8 | Code 3 of 9 (Code 39)
9 | Extended Code 3 of 9 (Code 39+)
13 | EAN (Including EAN-8 and EAN-13)
14 | EAN + Check Digit
16 | GS1-128 (UCC.EAN-128)
18 | Codabar
20 | Code 128 (automatic subset switching)
@ -250,7 +251,9 @@ Numeric Value | Barcode Name
31 | GS1 DataBar Extended
32 | Telepen Alpha
34 | UPC A
35 | UPC A + Check Digit
37 | UPC E
38 | UPC E + Check Digit
40 | PostNet
47 | MSI Plessey
49 | FIM
@ -893,6 +896,7 @@ Value |
8 | BARCODE_CODE39 | Code 3 of 9 (Code 39)
9 | BARCODE_EXCODE39 | Extended Code 3 of 9 (Code 39+)
13 | BARCODE_EANX | EAN
14 | BARCODE_EANX_CHK | EAN + Check Digit
16 | BARCODE_EAN128 | GS1-128 (UCC.EAN-128)
18 | BARCODE_CODABAR | Codabar
20 | BARCODE_CODE128 | Code 128 (automatic subset switching)
@ -907,7 +911,9 @@ Value |
31 | BARCODE_RSS_EXP | GS1 DataBar Extended
32 | BARCODE_TELEPEN | Telepen Alpha
34 | BARCODE_UPCA | UPC A
35 | BARCODE_UPCA_CHK | UPC A + Check Digit
37 | BARCODE_UPCE | UPC E
38 | BARCODE_UPCE | UPC E + Check Digit
40 | BARCODE_POSTNET | PostNet
47 | BARCODE_MSI_PLESSEY | MSI Plessey
49 | BARCODE_FIM | FIM
@ -1123,6 +1129,9 @@ my_symbol->symbology = BARCODE_UPCA;
error = ZBarcode_Encode_and_Print(my_symbol, "72527270270+12345");
If your input data already includes the check digit symbology 35 can be used
which takes a 12 digit input and validates the check digit before encoding.
6.1.3.2 UPC Version E
---------------------
UPC-E is a zero-compressed version of UPC-A developed for smaller packages. The
@ -1140,6 +1149,9 @@ my_symbol->symbology = BARCODE_UPCE;
error = ZBarcode_Encode_and_Print(my_symbol, "1123456");
If your input data already includes the check digit symbology 38 can be used
which takes a 7 or 8 digit input and validates the check digit before encoding.
6.1.4 European Article Number (EN 797)
--------------------------------------
6.1.4.1 EAN-2, EAN-5, EAN-8 and EAN-13
@ -1167,6 +1179,10 @@ error = ZBarcode_Encode_and_Print(my_symbol, "7432365+54321");
All of the EAN symbols include check digits which are added by Zint.
If you are encoding an EAN-8 or EAN-13 symbol and your data already includes
the check digit then you can use symbology 14 which takes an 8 or 13 digit input
and validates the check digit before encoding.
6.1.4.2 SBN, ISBN and ISBN-13
-----------------------------
EAN-13 symbols (also known as Bookland EAN-13) can also be produced from