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/* 2of5.c - Handles Code 2 of 5 barcodes */
/*
libzint - the open source barcode library
Copyright (C) 2008 Robin Stuart <robin@zint.org.uk>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the project nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#ifdef _MSC_VER
#include <malloc.h>
#endif
static const char *C25MatrixTable[10] = {"113311", "311131", "131131", "331111", "113131", "313111",
"133111", "111331", "311311", "131311"};
static const char *C25IndustTable[10] = {"1111313111", "3111111131", "1131111131", "3131111111", "1111311131",
"3111311111", "1131311111", "1111113131", "3111113111", "1131113111"};
static const char *C25InterTable[10] = {"11331", "31113", "13113", "33111", "11313", "31311", "13311", "11133",
"31131", "13131"};
static inline char check_digit(unsigned int count)
{
return itoc((10 - (count % 10)) % 10);
}
int interleaved_two_of_five(struct zint_symbol *symbol, unsigned char source[], int length)
{ /* Code 2 of 5 Interleaved */
int i, j, k, error_number;
char bars[7], spaces[7], mixed[14], dest[1000];
#ifndef _MSC_VER
unsigned char temp[length + 2];
#else
unsigned char* temp = (unsigned char *)_alloca((length + 2) * sizeof(unsigned char));
#endif
error_number = 0;
if(length > 89) {
strcpy(symbol->errtxt, "Input too long");
return ERROR_TOO_LONG;
}
error_number = is_sane(NEON, source, length);
if (error_number == ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Invalid characters in data");
return error_number;
}
ustrcpy(temp, (unsigned char *) "");
/* Input must be an even number of characters for Interlaced 2 of 5 to work:
if an odd number of characters has been entered then add a leading zero */
if (length & 1)
{
ustrcpy(temp, (unsigned char *) "0");
length++;
}
uconcat(temp, source);
/* start character */
strcpy(dest, "1111");
for(i = 0; i < length; i+=2 )
{
/* look up the bars and the spaces and put them in two strings */
strcpy(bars, "");
lookup(NEON, C25InterTable, temp[i], bars);
strcpy(spaces, "");
lookup(NEON, C25InterTable, temp[i + 1], spaces);
/* then merge (interlace) the strings together */
k = 0;
for(j = 0; j <= 4; j++)
{
mixed[k] = bars[j]; k++;
mixed[k] = spaces[j]; k++;
}
mixed[k] = '\0';
concat (dest, mixed);
}
/* Stop character */
concat (dest, "311");
expand(symbol, dest);
ustrcpy(symbol->text, temp);
return error_number;
}
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