mirrors/zint-barcode-generator
1
0
Fork 0
mirror of https://git.code.sf.net/p/zint/code synced 2025-05-20 02:05:11 -04:00
Code Issues Projects Releases Packages Wiki Activity

- BMP/EMF/EPS/GIF/PCX/PNG/SVG/TIF/TXT: check for errors on writing

Browse source 
to output file; ZBarcode_Encode_File: check `fseek()` for errors
  (ticket #275)
- man page: fix Code 11 check digit info
- manual/man page: document octal escape; Code 128 subset/mode ->
  Code Set
This commit is contained in:
gitlost 2022-12-19 16:28:15 +00:00
parent a54bdc0299
commit 268fdd7fc2
18 changed files with 318 additions and 140 deletions
Download patch file Download diff file Expand all files Collapse all files

35
docs/manual.pmd
View file

@ -492,15 +492,20 @@ Sequence Equivalent
`\\` 0x5C `\` Backslash
`\dNNN` NNN Any 8-bit character where NNN is decimal (0-255)
`\dNNN` NNN Any 8-bit character where NNN is decimal
(000-255)
`\oNNN` 0oNNN Any 8-bit character where NNN is octal
(000-377)
`\xNN` 0xNN Any 8-bit character where NN is hexadecimal
(00-FF)
`\uNNNN` Any 16-bit Unicode BMP[^2] character where
NNNN is hexadecimal
NNNN is hexadecimal (0000-FFFF)
`\UNNNNNN` Any 21-bit Unicode character where NNNNNN
is hexadecimal (maximum 0x10FFFF)
is hexadecimal (000000-10FFFF)
---------------------------------------------------------------------------
Table: {#tbl:escape_sequences tag=": Escape Sequences"}
@ -593,7 +598,7 @@ Value
18 `BARCODE_CODABAR` Codabar
20 `BARCODE_CODE128` Code 128 (automatic subset switching)
20 `BARCODE_CODE128` Code 128 (automatic Code Set switching)
21 `BARCODE_DPLEIT` Deutsche Post Leitcode
@ -648,7 +653,7 @@ Value
58 `BARCODE_QRCODE` QR Code
60 `BARCODE_CODE128AB` Code 128 (Suppress subset C)
60 `BARCODE_CODE128AB` Code 128 (Suppress Code Set C)
63 `BARCODE_AUSPOST` Australia Post Standard Customer
@ -2776,20 +2781,22 @@ pharmaceuticals. The symbology is able to encode whole numbers between 3 and
One of the most ubiquitous one-dimensional barcode symbologies, Code 128 was
developed in 1981 by Computer Identics. This symbology supports full ASCII text
and uses a three-mode system to compress the data into a smaller symbol. Zint
automatically switches between modes and adds a modulo-103 check digit. Code
128 is the default barcode symbology used by Zint. In addition Zint supports
the encoding of ISO/IEC 8859-1 (non-English) characters in Code 128 symbols. The
ISO/IEC 8859-1 character set is shown in Appendix [A.2 Latin Alphabet No. 1
(ISO/IEC 8859-1)].
and uses a three-Code Set system to compress the data into a smaller symbol.
Zint automatically switches between Code Sets A, B and C and adds a modulo-103
check digit.
#### 6.1.10.2 Code 128 Suppress Subset C (Subsets A and B only)
Code 128 is the default barcode symbology used by Zint. In addition Zint
supports the encoding of ISO/IEC 8859-1 (non-English) characters in Code 128
symbols. The ISO/IEC 8859-1 character set is shown in Appendix [A.2 Latin
Alphabet No. 1 (ISO/IEC 8859-1)].
#### 6.1.10.2 Code 128 Suppress Code Set C (Code Sets A and B only)
![`zint -b CODE128AB -d "130170X178"`](images/code128ab.svg)
It is sometimes advantageous to stop Code 128 from using subset mode C which
It is sometimes advantageous to stop Code 128 from using Code Set C which
compresses numerical data. The `BARCODE_CODE128AB`[^10] variant (symbology 60)
suppresses mode C in favour of modes A and B.
suppresses Code Set C in favour of Code Sets A and B.
[^10]: `BARCODE_CODE128AB` previously used the name `BARCODE_CODE128B`, which is
still recognised.