Allow selection of GS1 mode on GS1 symbols

Because some symbols require GS1 data, selecting GS1 mode for them would result in GS1 parsing being done twice, corrupting the data.
Fixes #165 reported by Gregory Van Vooren
This commit is contained in:
Robin Stuart 2019-10-06 11:30:21 +01:00
parent eb3a004ace
commit ff2ceea361
4 changed files with 45 additions and 64 deletions

View file

@ -2,7 +2,7 @@
/*
libzint - the open source barcode library
Copyright (C) 2008-2017 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2008-2019 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@ -1865,23 +1865,14 @@ int rssexpanded(struct zint_symbol *symbol, unsigned char source[], int src_len)
int check_char, c_odd, c_even, elements[235], pattern_width, reader, writer;
int separator_row;
#ifndef _MSC_VER
char reduced[src_len + 1], binary_string[(7 * src_len) + 1];
char binary_string[(7 * src_len) + 1];
#else
char* reduced = (char*) _alloca(src_len + 1);
char* binary_string = (char*) _alloca((7 * src_len) + 1);
#endif
separator_row = 0;
reader = 0;
if (symbol->input_mode != GS1_MODE) {
/* GS1 data has not been verified yet */
i = gs1_verify(symbol, source, src_len, reduced);
if (i != 0) {
return i;
}
}
if ((symbol->symbology == BARCODE_RSS_EXP_CC) || (symbol->symbology == BARCODE_RSS_EXPSTACK_CC)) {
/* make space for a composite separator pattern */
separator_row = symbol->rows;
@ -1897,7 +1888,7 @@ int rssexpanded(struct zint_symbol *symbol, unsigned char source[], int src_len)
strcat(binary_string, "0");
}
i = rss_binary_string(symbol, reduced, binary_string);
i = rss_binary_string(symbol, (char *) source, binary_string);
if (i != 0) {
return i;
}