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PDF417: fix cols/rows calculation to require multiple <= 928 codewords;

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add specify rows option (option_3) (#204);
  warn if cols increased from specified (back-incompatible);
  move table definitions from "pdf417.h" to new "pdf417_tabs.h" and
  make INTERNAL_DATA and share with composite.c (saves ~10K);
  prefix routines and tables with "pdf_";
  some small performance improvements through if/elses, pdf_textprocess()
  & pdf_numbprocess() loop simplifications
MICROQR: fix debug access crash on printing non-NUL-terminating binary
DATAMATRIX: fix missing ++ from "[tp]" at C40/TEXT EOD processing of GS1
  (though probably never reached); use "[tp++]" throughout
Add const to static tables missing it and also to some variables
Change "debug" -> "debug_print" throughout
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gitlost 2021-10-30 22:00:31 +01:00
parent 706f021637
commit 4e72a541f7
47 changed files with 1949 additions and 1231 deletions
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15
docs/manual.txt
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@ -2065,16 +2065,17 @@ amount of data into a small space. Zint supports encoding up to the ISO
standard maximum symbol size of 925 codewords which (at error correction level
0) allows a maximum data size of 1850 text characters, or 2710 digits. The
width of the generated PDF417 symbol can be specified at the command line using
the --cols switch followed by a number between 1 and 30, and the amount of
the --cols switch followed by a number between 1 and 30, the number of rows
using the --rows switch followed by a number between 3 and 90, and the amount of
error correction information can be specified by using the --secure switch
followed by a number between 0 and 8 where the number of codewords used for
error correction is determined by 2^(value + 1). If using the API these values
are assigned to option_2 and option_1 respectively. The default level of error
correction is determined by the amount of data being encoded. This symbology
uses Latin-1 character encoding by default but also supports the ECI encoding
mechanism. A separate symbology ID can be used to encode Health Industry
Barcode (HIBC) data which adds a leading '+' character and a modulo-49 check
digit to the encoded data.
are assigned to option_2, option_3 and option_1 respectively. The default level
of error correction is determined by the amount of data being encoded. This
symbology uses Latin-1 character encoding by default but also supports the ECI
encoding mechanism. A separate symbology ID can be used to encode Health
Industry Barcode (HIBC) data which adds a leading '+' character and a modulo-49
check digit to the encoded data.
PDF417 supports Structured Append of up to a 99,999 symbols and an optional
numeric ID of up to 30 digits, which can be set by using the --structapp option