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MAXICODE: Zero-pad US postcodes that lack "+4" (Annex B.1.4a)

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Adapted from OkapiBarcode, with stricter interpretation (only pad
  if "+4" totally absent), props Daniel Gredler
gs1: update to latest gs1-syntax-dictionary (linter mm -> mi)
bwipp: update to latest
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gitlost 2024-10-09 18:25:38 +01:00
parent c1666cf350
commit 752c1fae5d
6 changed files with 96 additions and 50 deletions
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8
backend/maxicode.c
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@ -1,7 +1,7 @@
/* maxicode.c - Handles MaxiCode */
/*
libzint - the open source barcode library
Copyright (C) 2010-2023 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2010-2024 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@ -613,6 +613,12 @@ INTERNAL int maxicode(struct zint_symbol *symbol, struct zint_seg segs[], const
return ZINT_ERROR_INVALID_DATA;
}
}
if (countrycode == 840 && postcode_len == 5) {
/* Annex B, section B.1, paragraph 4.a, "In the case of country code 840, if the "+4" is unknown,
then fill with zeroes" (adapted from OkaiBarcode, stricter interpretation, props Daniel Gredler) */
memcpy(postcode + 5, "0000", 5); /* Include NUL char */
postcode_len = 9;
}
maxi_do_primary_2(maxi_codeword, postcode, postcode_len, countrycode, service);
} else {
/* Just truncate and space-pad */