zint/backend/tests/testcommon.c

/*
    libzint - the open source barcode library
    Copyright (C) 2019 - 2021 Robin Stuart <rstuart114@gmail.com>

    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.
 */
/* vim: set ts=4 sw=4 et : */
/*
 * Adapted from qrencode/tests/common.c
 * Copyright (C) 2006-2017 Kentaro Fukuchi <kentaro@fukuchi.org>
 */

#include "testcommon.h"
#include "../eci.h"
#ifndef NO_PNG
#include <png.h>
#include <zlib.h>
#include <setjmp.h>
#endif
#include <limits.h>
#include <unistd.h>
#include <errno.h>

static int tests = 0;
static int failed = 0;
static int skipped = 0;
int assertionFailed = 0;
int assertionNum = 0;
static const char *testName = NULL;
static const char *testFunc = NULL;

void testStartReal(const char *func, const char *name) {
    tests++;
    testName = name;
    testFunc = func;
    assertionFailed = 0;
    assertionNum = 0;
    printf("_____%d: %s: %s...\n", tests, func, name);
}

void testEnd(int result) {
    if (testName && testName[0]) {
        printf(".....%d: %s: %s ", tests, testFunc, testName);
    } else {
        printf(".....%d: %s: ", tests, testFunc);
    }
    if (result) {
        puts("FAILED.");
        failed++;
    } else {
        puts("PASSED.");
    }
}

void testFinish(void) {
    if (testName && testName[0]) {
        printf(".....%d: %s: %s ", tests, testFunc, testName);
    } else {
        printf(".....%d: %s: ", tests, testFunc);
    }
    if (assertionFailed) {
        printf("FAILED. (%d assertions failed.)\n", assertionFailed);
        failed++;
    } else {
        printf("PASSED. (%d assertions passed.)\n", assertionNum);
    }
}

void testSkip(const char *msg) {
    skipped++;
    if (testName && testName[0]) {
        printf(".....%d: %s: %s ", tests, testFunc, testName);
    } else {
        printf(".....%d: %s: ", tests, testFunc);
    }
    if (assertionFailed) {
        printf("FAILED. (%d assertions failed.)\n", assertionFailed);
        failed++;
    } else {
        printf("SKIPPED. %s. (%d assertions passed.)\n", msg, assertionNum);
    }
}

void testReport() {
    if (failed && skipped) {
        printf("Total %d tests, %d skipped, %d fails.\n", tests, skipped, failed);
        exit(-1);
    }
    if (failed) {
        printf("Total %d tests, %d fails.\n", tests, failed);
        exit(-1);
    }
    if (skipped) {
        printf("Total %d tests, %d skipped.\n", tests, skipped);
    } else if (tests) {
        printf("Total %d tests, all passed.\n", tests);
    } else {
        printf("Total %d tests.\n", tests);
    }
}

void testRun(int argc, char *argv[], testFunction funcs[], int funcs_size) {
    int i, opt, ran;
    long long_opt;
    char *optarg_endptr = NULL;
    int debug = 0;
    char *func = NULL;
    char func_buf[256 + 5];
    int index = -1;
    int generate = 0;

    typedef void (*func_void)(void);
    typedef void (*func_debug)(int debug);
    typedef void (*func_index)(int index);
    typedef void (*func_index_debug)(int index, int debug);
    typedef void (*func_generate)(int generate);
    typedef void (*func_generate_debug)(int generate, int debug);
    typedef void (*func_index_generate)(int index, int generate);
    typedef void (*func_index_generate_debug)(int index, int generate, int debug);

    while ((opt = getopt(argc, argv, "d:f:gi:")) != -1) {
        switch (opt) {
            case 'd':
                errno = 0;
                long_opt = strtol(optarg, &optarg_endptr, 10);
                if (errno || optarg_endptr == optarg || long_opt < 0 || long_opt > INT_MAX) {
                    fprintf(stderr, "testRun: -d debug value invalid\n");
                    debug = 0;
                } else {
                    debug = long_opt;
                }
                break;
            case 'f':
                if (strlen(optarg) < 256) {
                    if (strncmp(optarg, "test_", 5) == 0) {
                        strcpy(func_buf, optarg);
                    } else {
                        strcpy(func_buf, "test_");
                        strcat(func_buf, optarg);
                    }
                    func = func_buf;
                } else {
                    fprintf(stderr, "testRun: -f func value too long\n");
                    func = NULL;
                }
                break;
            case 'g':
                generate = 1;
                break;
            case 'i':
                errno = 0;
                long_opt = strtol(optarg, &optarg_endptr, 10);
                if (errno || optarg_endptr == optarg || long_opt < 0 || long_opt > INT_MAX) {
                    fprintf(stderr, "testRun: -i index value invalid\n");
                    index = -1;
                } else {
                    index = long_opt;
                }
                break;
        }
    }

    ran = 0;
    for (i = 0; i < funcs_size; i++) {
        if (func && strcmp(func, funcs[i].name) != 0) {
            continue;
        }
        if (funcs[i].has_index && funcs[i].has_generate && funcs[i].has_debug) {
            (*(func_index_generate_debug)funcs[i].func)(index, generate, debug);
        } else if (funcs[i].has_index && funcs[i].has_generate) {
            if (debug) fprintf(stderr, "testRun %s: -d ignored\n", funcs[i].name);
            (*(func_index_generate)funcs[i].func)(index, generate);
        } else if (funcs[i].has_index && funcs[i].has_debug) {
            if (generate) fprintf(stderr, "testRun %s: -g ignored\n", funcs[i].name);
            (*(func_index_debug)funcs[i].func)(index, debug);
        } else if (funcs[i].has_index) {
            if (generate) fprintf(stderr, "testRun %s: -g ignored\n", funcs[i].name);
            if (debug) fprintf(stderr, "testRun %s: -d ignored\n", funcs[i].name);
            (*(func_index)funcs[i].func)(index);
        } else if (funcs[i].has_generate && funcs[i].has_debug) {
            if (index != -1) fprintf(stderr, "testRun %s: -i index ignored\n", funcs[i].name);
            (*(func_generate_debug)funcs[i].func)(generate, debug);
        } else if (funcs[i].has_generate) {
            if (index != -1) fprintf(stderr, "testRun %s: -i index ignored\n", funcs[i].name);
            if (debug) fprintf(stderr, "testRun %s: -d ignored\n", funcs[i].name);
            (*(func_generate)funcs[i].func)(generate);
        } else if (funcs[i].has_debug) {
            if (index != -1) fprintf(stderr, "testRun %s: -i index ignored\n", funcs[i].name);
            if (generate) fprintf(stderr, "testRun %s -g ignored\n", funcs[i].name);
            (*(func_debug)funcs[i].func)(debug);
        } else {
            if (index != -1) fprintf(stderr, "testRun %s: -i index ignored\n", funcs[i].name);
            if (generate) fprintf(stderr, "testRun %s -g ignored\n", funcs[i].name);
            if (debug) fprintf(stderr, "testRun %s: -d ignored\n", funcs[i].name);
            (*(func_void)funcs[i].func)();
        }
        ran++;
    }

    if (func && !ran) {
        fprintf(stderr, "testRun: unknown -f func arg '%s'\n", func);
    }
}

const char *testUtilBarcodeName(int symbology) {
    struct item {
        const char *name;
        int define;
        int val;
    };
    static const struct item data[] = {
        { "", -1, 0 },
        { "BARCODE_CODE11", BARCODE_CODE11, 1 },
        { "BARCODE_C25STANDARD", BARCODE_C25STANDARD, 2 },
        { "BARCODE_C25INTER", BARCODE_C25INTER, 3 },
        { "BARCODE_C25IATA", BARCODE_C25IATA, 4 },
        { "", -1, 5 },
        { "BARCODE_C25LOGIC", BARCODE_C25LOGIC, 6 },
        { "BARCODE_C25IND", BARCODE_C25IND, 7 },
        { "BARCODE_CODE39", BARCODE_CODE39, 8 },
        { "BARCODE_EXCODE39", BARCODE_EXCODE39, 9 },
        { "", -1, 10 },
        { "", -1, 11 },
        { "", -1, 12 },
        { "BARCODE_EANX", BARCODE_EANX, 13 },
        { "BARCODE_EANX_CHK", BARCODE_EANX_CHK, 14 },
        { "", -1, 15 },
        { "BARCODE_GS1_128", BARCODE_GS1_128, 16 },
        { "", -1, 17 },
        { "BARCODE_CODABAR", BARCODE_CODABAR, 18 },
        { "", -1, 19 },
        { "BARCODE_CODE128", BARCODE_CODE128, 20 },
        { "BARCODE_DPLEIT", BARCODE_DPLEIT, 21 },
        { "BARCODE_DPIDENT", BARCODE_DPIDENT, 22 },
        { "BARCODE_CODE16K", BARCODE_CODE16K, 23 },
        { "BARCODE_CODE49", BARCODE_CODE49, 24 },
        { "BARCODE_CODE93", BARCODE_CODE93, 25 },
        { "", -1, 26 },
        { "", -1, 27 },
        { "BARCODE_FLAT", BARCODE_FLAT, 28 },
        { "BARCODE_DBAR_OMN", BARCODE_DBAR_OMN, 29 },
        { "BARCODE_DBAR_LTD", BARCODE_DBAR_LTD, 30 },
        { "BARCODE_DBAR_EXP", BARCODE_DBAR_EXP, 31 },
        { "BARCODE_TELEPEN", BARCODE_TELEPEN, 32 },
        { "", -1, 33 },
        { "BARCODE_UPCA", BARCODE_UPCA, 34 },
        { "BARCODE_UPCA_CHK", BARCODE_UPCA_CHK, 35 },
        { "", -1, 36 },
        { "BARCODE_UPCE", BARCODE_UPCE, 37 },
        { "BARCODE_UPCE_CHK", BARCODE_UPCE_CHK, 38 },
        { "", -1, 39 },
        { "BARCODE_POSTNET", BARCODE_POSTNET, 40 },
        { "", -1, 41 },
        { "", -1, 42 },
        { "", -1, 43 },
        { "", -1, 44 },
        { "", -1, 45 },
        { "", -1, 46 },
        { "BARCODE_MSI_PLESSEY", BARCODE_MSI_PLESSEY, 47 },
        { "", -1, 48 },
        { "BARCODE_FIM", BARCODE_FIM, 49 },
        { "BARCODE_LOGMARS", BARCODE_LOGMARS, 50 },
        { "BARCODE_PHARMA", BARCODE_PHARMA, 51 },
        { "BARCODE_PZN", BARCODE_PZN, 52 },
        { "BARCODE_PHARMA_TWO", BARCODE_PHARMA_TWO, 53 },
        { "", -1, 54 },
        { "BARCODE_PDF417", BARCODE_PDF417, 55 },
        { "BARCODE_PDF417COMP", BARCODE_PDF417COMP, 56 },
        { "BARCODE_MAXICODE", BARCODE_MAXICODE, 57 },
        { "BARCODE_QRCODE", BARCODE_QRCODE, 58 },
        { "", -1, 59 },
        { "BARCODE_CODE128B", BARCODE_CODE128B, 60 },
        { "", -1, 61 },
        { "", -1, 62 },
        { "BARCODE_AUSPOST", BARCODE_AUSPOST, 63 },
        { "", -1, 64 },
        { "", -1, 65 },
        { "BARCODE_AUSREPLY", BARCODE_AUSREPLY, 66 },
        { "BARCODE_AUSROUTE", BARCODE_AUSROUTE, 67 },
        { "BARCODE_AUSREDIRECT", BARCODE_AUSREDIRECT, 68 },
        { "BARCODE_ISBNX", BARCODE_ISBNX, 69 },
        { "BARCODE_RM4SCC", BARCODE_RM4SCC, 70 },
        { "BARCODE_DATAMATRIX", BARCODE_DATAMATRIX, 71 },
        { "BARCODE_EAN14", BARCODE_EAN14, 72 },
        { "BARCODE_VIN", BARCODE_VIN, 73 },
        { "BARCODE_CODABLOCKF", BARCODE_CODABLOCKF, 74 },
        { "BARCODE_NVE18", BARCODE_NVE18, 75 },
        { "BARCODE_JAPANPOST", BARCODE_JAPANPOST, 76 },
        { "BARCODE_KOREAPOST", BARCODE_KOREAPOST, 77 },
        { "", -1, 78 },
        { "BARCODE_DBAR_STK", BARCODE_DBAR_STK, 79 },
        { "BARCODE_DBAR_OMNSTK", BARCODE_DBAR_OMNSTK, 80 },
        { "BARCODE_DBAR_EXPSTK", BARCODE_DBAR_EXPSTK, 81 },
        { "BARCODE_PLANET", BARCODE_PLANET, 82 },
        { "", -1, 83 },
        { "BARCODE_MICROPDF417", BARCODE_MICROPDF417, 84 },
        { "BARCODE_USPS_IMAIL", BARCODE_USPS_IMAIL, 85 },
        { "BARCODE_PLESSEY", BARCODE_PLESSEY, 86 },
        { "BARCODE_TELEPEN_NUM", BARCODE_TELEPEN_NUM, 87 },
        { "", -1, 88 },
        { "BARCODE_ITF14", BARCODE_ITF14, 89 },
        { "BARCODE_KIX", BARCODE_KIX, 90 },
        { "", -1, 91 },
        { "BARCODE_AZTEC", BARCODE_AZTEC, 92 },
        { "BARCODE_DAFT", BARCODE_DAFT, 93 },
        { "", -1, 94 },
        { "", -1, 95 },
        { "BARCODE_DPD", BARCODE_DPD, 96 },
        { "BARCODE_MICROQR", BARCODE_MICROQR, 97 },
        { "BARCODE_HIBC_128", BARCODE_HIBC_128, 98 },
        { "BARCODE_HIBC_39", BARCODE_HIBC_39, 99 },
        { "", -1, 100 },
        { "", -1, 101 },
        { "BARCODE_HIBC_DM", BARCODE_HIBC_DM, 102 },
        { "", -1, 103 },
        { "BARCODE_HIBC_QR", BARCODE_HIBC_QR, 104 },
        { "", -1, 105 },
        { "BARCODE_HIBC_PDF", BARCODE_HIBC_PDF, 106 },
        { "", -1, 107 },
        { "BARCODE_HIBC_MICPDF", BARCODE_HIBC_MICPDF, 108 },
        { "", -1, 109 },
        { "BARCODE_HIBC_BLOCKF", BARCODE_HIBC_BLOCKF, 110 },
        { "", -1, 111 },
        { "BARCODE_HIBC_AZTEC", BARCODE_HIBC_AZTEC, 112 },
        { "", -1, 113 },
        { "", -1, 114 },
        { "BARCODE_DOTCODE", BARCODE_DOTCODE, 115 },
        { "BARCODE_HANXIN", BARCODE_HANXIN, 116 },
        { "", -1, 117 },
        { "", -1, 118 },
        { "", -1, 119 },
        { "", -1, 120 },
        { "BARCODE_MAILMARK", BARCODE_MAILMARK, 121 },
        { "", -1, 122 },
        { "", -1, 123 },
        { "", -1, 124 },
        { "", -1, 125 },
        { "", -1, 126 },
        { "", -1, 127 },
        { "BARCODE_AZRUNE", BARCODE_AZRUNE, 128 },
        { "BARCODE_CODE32", BARCODE_CODE32, 129 },
        { "BARCODE_EANX_CC", BARCODE_EANX_CC, 130 },
        { "BARCODE_GS1_128_CC", BARCODE_GS1_128_CC, 131 },
        { "BARCODE_DBAR_OMN_CC", BARCODE_DBAR_OMN_CC, 132 },
        { "BARCODE_DBAR_LTD_CC", BARCODE_DBAR_LTD_CC, 133 },
        { "BARCODE_DBAR_EXP_CC", BARCODE_DBAR_EXP_CC, 134 },
        { "BARCODE_UPCA_CC", BARCODE_UPCA_CC, 135 },
        { "BARCODE_UPCE_CC", BARCODE_UPCE_CC, 136 },
        { "BARCODE_DBAR_STK_CC", BARCODE_DBAR_STK_CC, 137 },
        { "BARCODE_DBAR_OMNSTK_CC", BARCODE_DBAR_OMNSTK_CC, 138 },
        { "BARCODE_DBAR_EXPSTK_CC", BARCODE_DBAR_EXPSTK_CC, 139 },
        { "BARCODE_CHANNEL", BARCODE_CHANNEL, 140 },
        { "BARCODE_CODEONE", BARCODE_CODEONE, 141 },
        { "BARCODE_GRIDMATRIX", BARCODE_GRIDMATRIX, 142 },
        { "BARCODE_UPNQR", BARCODE_UPNQR, 143 },
        { "BARCODE_ULTRA", BARCODE_ULTRA, 144 },
        { "BARCODE_RMQR", BARCODE_RMQR, 145 },
    };
    static const int data_size = sizeof(data) / sizeof(struct item);

    if (symbology < 0 || symbology >= data_size) {
        return "";
    }
    if (data[symbology].val != symbology || (data[symbology].define != -1 && data[symbology].define != symbology)) { // Self-check
        fprintf(stderr, "testUtilBarcodeName: data table out of sync (%d)\n", symbology);
        abort();
    }
    return data[symbology].name;
}

int testUtilSetSymbol(struct zint_symbol *symbol, int symbology, int input_mode, int eci, int option_1, int option_2, int option_3, int output_options, char *data, int length, int debug) {
    symbol->symbology = symbology;
    if (input_mode != -1) {
        symbol->input_mode = input_mode;
    }
    if (eci != -1) {
        symbol->eci = eci;
    }
    if (option_1 != -1) {
        symbol->option_1 = option_1;
    }
    if (option_2 != -1) {
        symbol->option_2 = option_2;
    }
    if (option_3 != -1) {
        symbol->option_3 = option_3;
    }
    if (output_options != -1) {
        symbol->output_options = output_options;
    }
    symbol->debug |= debug;
    if (length == -1) {
        length = strlen(data);
    }

    return length;
}

const char *testUtilErrorName(int error_number) {
    struct item {
        const char *name;
        int define;
        int val;
    };
    static const struct item data[] = {
        { "0", 0, 0 },
        { "", -1, 1 },
        { "ZINT_WARN_INVALID_OPTION", ZINT_WARN_INVALID_OPTION, 2 },
        { "ZINT_WARN_USES_ECI", ZINT_WARN_USES_ECI, 3 },
        { "ZINT_WARN_NONCOMPLIANT", ZINT_WARN_NONCOMPLIANT, 4 },
        { "ZINT_ERROR_TOO_LONG", ZINT_ERROR_TOO_LONG, 5 },
        { "ZINT_ERROR_INVALID_DATA", ZINT_ERROR_INVALID_DATA, 6 },
        { "ZINT_ERROR_INVALID_CHECK", ZINT_ERROR_INVALID_CHECK, 7 },
        { "ZINT_ERROR_INVALID_OPTION", ZINT_ERROR_INVALID_OPTION, 8 },
        { "ZINT_ERROR_ENCODING_PROBLEM", ZINT_ERROR_ENCODING_PROBLEM, 9 },
        { "ZINT_ERROR_FILE_ACCESS", ZINT_ERROR_FILE_ACCESS, 10 },
        { "ZINT_ERROR_MEMORY", ZINT_ERROR_MEMORY, 11 },
    };
    static const int data_size = sizeof(data) / sizeof(struct item);

    if (error_number < 0 || error_number >= data_size) {
        return "";
    }
    if (data[error_number].val != error_number || (data[error_number].define != -1 && data[error_number].define != error_number)) { // Self-check
        fprintf(stderr, "testUtilErrorName: data table out of sync (%d)\n", error_number);
        abort();
    }
    return data[error_number].name;
}

const char *testUtilInputModeName(int input_mode) {
    struct item {
        const char *name;
        int define;
        int val;
    };
    static const struct item data[] = {
        { "DATA_MODE", DATA_MODE, 0 },
        { "UNICODE_MODE", UNICODE_MODE, 1 },
        { "GS1_MODE", GS1_MODE, 2 },
        { "", -1, 3 },
        { "", -1, 4 },
        { "", -1, 5 },
        { "", -1, 6 },
        { "", -1, 7 },
        { "DATA_MODE | ESCAPE_MODE", DATA_MODE | ESCAPE_MODE, 8 },
        { "UNICODE_MODE | ESCAPE_MODE", UNICODE_MODE | ESCAPE_MODE, 9 },
        { "GS1_MODE | ESCAPE_MODE", GS1_MODE | ESCAPE_MODE, 10 },
    };
    static const int data_size = sizeof(data) / sizeof(struct item);

    if (input_mode < 0 || input_mode >= data_size) {
        return input_mode == -1 ? "-1" : "";
    }
    if (data[input_mode].val != input_mode || (data[input_mode].define != -1 && data[input_mode].define != input_mode)) { // Self-check
        fprintf(stderr, "testUtilInputModeName: data table out of sync (%d)\n", input_mode);
        abort();
    }
    return data[input_mode].name;
}

const char *testUtilOption3Name(int option_3) {
    static char buffer[64];

    const char *name = NULL;
    unsigned int high_byte = option_3 == -1 ? 0 : (option_3 >> 8) & 0xFF;

    switch (option_3 & 0xFF) {
        case DM_SQUARE:
            name = "DM_SQUARE";
            break;
        case DM_DMRE:
            name = "DM_DMRE";
            break;
        case ZINT_FULL_MULTIBYTE:
            name = "ZINT_FULL_MULTIBYTE";
            break;
        case ULTRA_COMPRESSION:
            name = "ULTRA_COMPRESSION";
            break;
        default:
            if (option_3 != -1 && (option_3 & 0xFF) != 0) {
                fprintf(stderr, "testUtilOption3Name: unknown value (%d)\n", option_3);
                abort();
            }
            name = (option_3 & 0xFF) ? "-1" : "0";
            break;
    }

    if (high_byte) {
        if (option_3 & 0xFF) {
            sprintf(buffer, "%s | (%d << 8)", name, high_byte);
        } else {
            sprintf(buffer, "%d << 8", high_byte);
        }
        return buffer;
    }

    return name;
}

const char *testUtilOutputOptionsName(int output_options) {
    static char buf[512];

    struct item {
        const char *name;
        int define;
        int val;
    };
    static const struct item data[] = {
        { "BARCODE_NO_ASCII", BARCODE_NO_ASCII, 1 },
        { "BARCODE_BIND", BARCODE_BIND, 2 },
        { "BARCODE_BOX", BARCODE_BOX, 4 },
        { "BARCODE_STDOUT", BARCODE_STDOUT, 8 },
        { "READER_INIT", READER_INIT, 16 },
        { "SMALL_TEXT", SMALL_TEXT, 32 },
        { "BOLD_TEXT", BOLD_TEXT, 64 },
        { "CMYK_COLOUR", CMYK_COLOUR, 128 },
        { "BARCODE_DOTTY_MODE", BARCODE_DOTTY_MODE, 256 },
        { "GS1_GS_SEPARATOR", GS1_GS_SEPARATOR, 512 },
        { "OUT_BUFFER_INTERMEDIATE", OUT_BUFFER_INTERMEDIATE, 1024 },
    };
    static int const data_size = ARRAY_SIZE(data);
    int set = 0;
    int i;

    if (output_options == -1) {
        return "-1";
    }
    if (output_options == 0) {
        return "0";
    }
    buf[0] = '\0';
    for (i = 0; i < data_size; i++) {
        if (data[i].define != data[i].val) { // Self-check
            fprintf(stderr, "testUtilOutputOptionsName: data table out of sync (%d)\n", i);
            abort();
        }
        if (output_options & data[i].define) {
            if (set) {
                strcat(buf, " | ");
            }
            strcat(buf, data[i].name);
            set |= data[i].define;
        }
    }
    if (set != output_options) {
        fprintf(stderr, "testUtilOutputOptionsName: unknown output option(s) %d (%d)\n", output_options & set, output_options);
        abort();
    }
    return buf;
}

int testUtilDAFTConvert(const struct zint_symbol *symbol, char *buffer, int buffer_size) {
    buffer[0] = '\0';
    char *b = buffer;
    for (int i = 0; i < symbol->width && b < buffer + buffer_size; i += 2) {
        if (module_is_set(symbol, 0, i) && module_is_set(symbol, 2, i)) {
            *b++ = 'F';
        } else if (module_is_set(symbol, 0, i)) {
            *b++ = 'A';
        } else if (module_is_set(symbol, 2, i)) {
            *b++ = 'D';
        } else {
            *b++ = 'T';
        }
    }
    if (b == buffer + buffer_size) {
        return FALSE;
    }
    *b = '\0';
    return TRUE;
}

/* Is string valid UTF-8? */
int testUtilIsValidUTF8(const unsigned char str[], const int length) {
    int i;
    unsigned int codepoint, state = 0;

    for (i = 0; i < length; i++) {
        if (decode_utf8(&state, &codepoint, str[i]) == 12) {
            return 0;
        }
    }

    return state == 0;
}

char *testUtilEscape(char *buffer, int length, char *escaped, int escaped_size) {
    int i;
    unsigned char *b = (unsigned char *) buffer;
    unsigned char *be = b + length;
    int non_utf8 = !testUtilIsValidUTF8(b, length);

    for (i = 0; b < be && i < escaped_size; b++) {
        if (non_utf8 || *b < ' ' || *b == '\177') {
            if (i < escaped_size - 4) {
                sprintf(escaped + i, "\\%.3o", *b);
            }
            i += 4;
        } else if (*b == '\\' || *b == '"') {
            if (i < escaped_size - 2) {
                escaped[i] = '\\';
                escaped[i + 1] = *b;
            }
            i += 2;
        } else if (b + 1 < be && *b == 0xC2 && *(b + 1) < 0xA0) {
            if (i < escaped_size - 8) {
                sprintf(escaped + i, "\\%.3o\\%.3o", *b, *(b + 1));
            }
            i += 8;
            b++;
        } else {
            escaped[i++] = *b;
        }
    }
    if (i >= escaped_size) {
        return NULL;
    }
    escaped[i] = '\0';
    return escaped;
}

char *testUtilReadCSVField(char *buffer, char *field, int field_size) {
    int i;
    char *b = buffer;
    for (i = 0; i < field_size && *b && *b != ',' && *b != '\n' && *b != '\r'; i++) {
        field[i] = *b++;
    }
    if (i == field_size) {
        return NULL;
    }
    field[i] = '\0';
    return b;
}

void testUtilStrCpyRepeat(char *buffer, char *repeat, int size) {
    int i;
    int len = strlen(repeat);
    int max = size - len;
    if (len == 0) {
        fprintf(stderr, "testUtilStrCpyRepeat: only use non-empty, non-NUL single-byte data for repeat pattern\n");
        abort();
    }
    for (i = 0; i < max; i += len) {
        memcpy(buffer + i, repeat, len);
    }
    memcpy(buffer + i, repeat, size - i);
    buffer[size] = '\0';
}

int testUtilSymbolCmp(const struct zint_symbol *a, const struct zint_symbol *b) {
    if (a->symbology != b->symbology) {
        return 1;
    }
    if (a->rows != b->rows) {
        return 2;
    }
    if (a->width != b->width) {
        return 3;
    }
    if (a->symbology == BARCODE_ULTRA) {
        for (int i = 0; i < a->rows; i++) {
            for (int j = 0; j < a->width; j++) {
                if (module_colour_is_set(a, i, j) != module_colour_is_set(b, i, j)) {
                    return 4;
                }
            }
        }
    } else {
        for (int i = 0; i < a->rows; i++) {
            for (int j = 0; j < a->width; j++) {
                if (module_is_set(a, i, j) != module_is_set(b, i, j)) {
                    return 4;
                }
            }
        }
    }
    if (a->height != b->height) {
        return 5;
    }
    if (a->whitespace_width != b->whitespace_width) {
        return 6;
    }
    if (a->border_width != b->border_width) {
        return 7;
    }
    if (a->output_options != b->output_options) {
        return 8;
    }
    if (a->scale != b->scale) {
        return 9;
    }

    return 0;
}

struct zint_vector *testUtilVectorCpy(const struct zint_vector *in) {
    struct zint_vector *out = malloc(sizeof(struct zint_vector));
    out->width = in->width;
    out->height = in->height;
    out->rectangles = NULL;
    out->strings = NULL;
    out->circles = NULL;
    out->hexagons = NULL;

    struct zint_vector_rect *rect;
    struct zint_vector_string *string;
    struct zint_vector_circle *circle;
    struct zint_vector_hexagon *hexagon;

    struct zint_vector_rect **outrect;
    struct zint_vector_string **outstring;
    struct zint_vector_circle **outcircle;
    struct zint_vector_hexagon **outhexagon;

    // Copy rectangles
    rect = in->rectangles;
    outrect = &(out->rectangles);
    while (rect) {
        *outrect = malloc(sizeof(struct zint_vector_rect));
        memcpy(*outrect, rect, sizeof(struct zint_vector_rect));
        outrect = &((*outrect)->next);
        rect = rect->next;
    }
    *outrect = NULL;

    // Copy Strings
    string = in->strings;
    outstring = &(out->strings);
    while (string) {
        *outstring = malloc(sizeof(struct zint_vector_string));
        memcpy(*outstring, string, sizeof(struct zint_vector_string));
        (*outstring)->text = malloc(sizeof(unsigned char) * (ustrlen(string->text) + 1));
        ustrcpy((*outstring)->text, string->text);
        outstring = &((*outstring)->next);
        string = string->next;
    }
    *outstring = NULL;

    // Copy Circles
    circle = in->circles;
    outcircle = &(out->circles);
    while (circle) {
        *outcircle = malloc(sizeof(struct zint_vector_circle));
        memcpy(*outcircle, circle, sizeof(struct zint_vector_circle));
        outcircle = &((*outcircle)->next);
        circle = circle->next;
    }
    *outcircle = NULL;

    // Copy Hexagons
    hexagon = in->hexagons;
    outhexagon = &(out->hexagons);
    while (hexagon) {
        *outhexagon = malloc(sizeof(struct zint_vector_hexagon));
        memcpy(*outhexagon, hexagon, sizeof(struct zint_vector_hexagon));
        outhexagon = &((*outhexagon)->next);
        hexagon = hexagon->next;
    }
    *outhexagon = NULL;

    return out;
}

int testUtilVectorCmp(const struct zint_vector *a, const struct zint_vector *b) {
    struct zint_vector_rect *arect;
    struct zint_vector_string *astring;
    struct zint_vector_circle *acircle;
    struct zint_vector_hexagon *ahexagon;

    struct zint_vector_rect *brect;
    struct zint_vector_string *bstring;
    struct zint_vector_circle *bcircle;
    struct zint_vector_hexagon *bhexagon;

    if (a->width != b->width) {
        return 1;
    }
    if (a->height != b->height) {
        return 2;
    }

    // Compare rectangles
    arect = a->rectangles;
    brect = b->rectangles;
    while (arect) {
        if (!brect) {
            return 11;
        }
        if (arect->x != brect->x) {
            return 12;
        }
        if (arect->y != brect->y) {
            return 13;
        }
        if (arect->height != brect->height) {
            return 14;
        }
        if (arect->width != brect->width) {
            return 15;
        }
        if (arect->colour != brect->colour) {
            return 16;
        }
        arect = arect->next;
        brect = brect->next;
    }
    if (brect) {
        return 10;
    }

    // Compare strings
    astring = a->strings;
    bstring = b->strings;
    while (astring) {
        if (!bstring) {
            return 21;
        }
        if (astring->x != bstring->x) {
            return 22;
        }
        if (astring->y != bstring->y) {
            return 23;
        }
        if (astring->fsize != bstring->fsize) {
            return 24;
        }
        if (astring->width != bstring->width) {
            return 25;
        }
        if (astring->length != bstring->length) {
            return 26;
        }
        if (ustrlen(astring->text) != ustrlen(bstring->text)) {
            return 27;
        }
        if (strcmp((const char*)astring->text, (const char*)bstring->text) != 0) {
            return 28;
        }
        astring = astring->next;
        bstring = bstring->next;
    }
    if (bstring) {
        return 20;
    }

    // Compare circles
    acircle = a->circles;
    bcircle = b->circles;
    while (acircle) {
        if (!bcircle) {
            return 31;
        }
        if (acircle->x != bcircle->x) {
            return 32;
        }
        if (acircle->y != bcircle->y) {
            return 33;
        }
        if (acircle->diameter != bcircle->diameter) {
            return 34;
        }
        if (acircle->colour != bcircle->colour) {
            return 35;
        }
        acircle = acircle->next;
        bcircle = bcircle->next;
    }
    if (bcircle) {
        return 30;
    }

    // Compare hexagons
    ahexagon = a->hexagons;
    bhexagon = b->hexagons;
    while (ahexagon) {
        if (!bhexagon) {
            return 41;
        }
        if (ahexagon->x != bhexagon->x) {
            return 42;
        }
        if (ahexagon->y != bhexagon->y) {
            return 43;
        }
        if (ahexagon->diameter != bhexagon->diameter) {
            return 44;
        }
        ahexagon = ahexagon->next;
        bhexagon = bhexagon->next;
    }
    if (bhexagon) {
        return 40;
    }

    return 0;
}

int testUtilModulesDump(const struct zint_symbol *symbol, char dump[], int dump_size) {
    int r, w;
    char *d = dump;
    char *de = dump + dump_size;

    for (r = 0; r < symbol->rows && d < de; r++) {
        if (symbol->symbology == BARCODE_ULTRA) {
            for (w = 0; w < symbol->width && d < de; w++) {
                *d++ = module_colour_is_set(symbol, r, w) + '0';
            }
        } else {
            for (w = 0; w < symbol->width && d < de; w++) {
                *d++ = module_is_set(symbol, r, w) + '0';
            }
        }
    }
    if (d == de) {
        return -1;
    }
    *d = '\0';
    return d - dump;
}

void testUtilModulesPrint(const struct zint_symbol *symbol, const char *prefix, const char *postfix) {
    int r;
    for (r = 0; r < symbol->rows; r++) {
        testUtilModulesPrintRow(symbol, r, prefix, postfix);
    }
}

void testUtilModulesPrintRow(const struct zint_symbol *symbol, int row, const char *prefix, const char *postfix) {
    int w;
    if (*prefix) {
        fputs(prefix, stdout);
    }
    putchar('"');
    if (symbol->symbology == BARCODE_ULTRA) {
        for (w = 0; w < symbol->width; w++) {
            putchar(module_colour_is_set(symbol, row, w) + '0');
        }
    } else {
        for (w = 0; w < symbol->width; w++) {
            putchar(module_is_set(symbol, row, w) + '0');
        }
    }
    putchar('"');
    if (*postfix) {
        fputs(postfix, stdout);
    }
}

int testUtilModulesCmp(const struct zint_symbol *symbol, const char *expected, int *width, int *row) {
    const char *e = expected;
    const char *ep = expected + strlen(expected);
    int r, w = 0;
    if (symbol->symbology == BARCODE_ULTRA) {
        for (r = 0; r < symbol->rows && e < ep; r++) {
            for (w = 0; w < symbol->width && e < ep; w++) {
                if (module_colour_is_set(symbol, r, w) + '0' != *e) {
                    *row = r;
                    *width = w;
                    return 1 /*fail*/;
                }
                e++;
            }
        }
    } else {
        for (r = 0; r < symbol->rows && e < ep; r++) {
            for (w = 0; w < symbol->width && e < ep; w++) {
                if (module_is_set(symbol, r, w) + '0' != *e) {
                    *row = r;
                    *width = w;
                    return 1 /*fail*/;
                }
                e++;
            }
        }
    }
    *row = r;
    *width = w;
    return e != ep || r != symbol->rows || w != symbol->width ? 1 /*fail*/ : 0 /*success*/;
}

int testUtilModulesCmpRow(const struct zint_symbol *symbol, int row, const char *expected, int *width) {
    const char *e = expected;
    const char *ep = expected + strlen(expected);
    int w;
    if (symbol->symbology == BARCODE_ULTRA) {
        for (w = 0; w < symbol->width && e < ep; w++) {
            if (module_colour_is_set(symbol, row, w) + '0' != *e) {
                *width = w;
                return 1 /*fail*/;
            }
            e++;
        }
    } else {
        for (w = 0; w < symbol->width && e < ep; w++) {
            if (module_is_set(symbol, row, w) + '0' != *e) {
                *width = w;
                return 1 /*fail*/;
            }
            e++;
        }
    }
    *width = w;
    return e != ep || w != symbol->width ? 1 /*fail*/ : 0 /*success*/;
}

int testUtilModulesDumpHex(const struct zint_symbol *symbol, char dump[], int dump_size) {
    int i, r;
    char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8',
        '9', 'A', 'B', 'C', 'D', 'E', 'F'};
    int space = 0;
    char *d = dump;
    char *de = dump + dump_size;

    for (r = 0; r < symbol->rows && d < de; r++) {
        int byt = 0;
        for (i = 0; i < symbol->width && d < de; i++) {
            if (space == 2) {
                *d++ = ' ';
                space = 0;
            }
            byt = byt << 1;
            if (symbol->symbology == BARCODE_ULTRA) {
                if (module_colour_is_set(symbol, r, i)) {
                    byt += 1;
                }
            } else {
                if (module_is_set(symbol, r, i)) {
                    byt += 1;
                }
            }
            if (d < de && ((i + 1) % 4) == 0) {
                *d++ = hex[byt];
                space++;
                byt = 0;
            }
        }
        if (d < de && (symbol->width % 4) != 0) {
            byt = byt << (4 - (symbol->width % 4));
            *d++ = hex[byt];
            space++;
        }
    }
    if (d == de) {
        return -1;
    }
    *d = '\0';
    return d - dump;
}

char *testUtilUIntArrayDump(unsigned int *array, int size, char *dump, int dump_size) {
    int i, cnt_len = 0;

    for (i = 0; i < size; i++) {
        cnt_len += sprintf(dump + cnt_len, "%X ", array[i]);
        if (cnt_len + 17 >= dump_size) {
            break;
        }
    }
    dump[cnt_len ? cnt_len - 1 : 0] = '\0';
    return dump;
}

char *testUtilUCharArrayDump(unsigned char *array, int size, char *dump, int dump_size) {
    int i, cnt_len = 0;

    for (i = 0; i < size; i++) {
        cnt_len += sprintf(dump + cnt_len, "%X ", array[i]);
        if (cnt_len + 3 >= dump_size) {
            break;
        }
    }
    dump[cnt_len ? cnt_len - 1 : 0] = '\0';
    return dump;
}

void testUtilBitmapPrint(const struct zint_symbol *symbol, const char *prefix, const char *postfix) {
    static char colour[] = { '0', 'C', 'M', 'B', 'Y', 'G', 'R', '1' };
    int row, column, i, j;

    if (!prefix) {
        fputs("     ", stdout);
        for (column = 0; column < symbol->bitmap_width; column += 10) printf("%-3d       ", column);
        fputs("\n     ", stdout);
        for (column = 0; column < symbol->bitmap_width; column++) printf("%d", column % 10);
        putchar('\n');
    }

    for (row = 0; row < symbol->bitmap_height; row++) {
        if (!prefix) {
            printf("%3d: ", row);
        } else {
            if (*prefix) {
                fputs(prefix, stdout);
            }
            putchar('"');
        }
        for (column = 0; column < symbol->bitmap_width; column++) {
            if (symbol->output_options & OUT_BUFFER_INTERMEDIATE) {
                putchar(symbol->bitmap[(row * symbol->bitmap_width) + column]);
            } else {
                i = ((row * symbol->bitmap_width) + column) * 3;
                if ((symbol->bitmap[i] == 0 || symbol->bitmap[i] == 0xff) && (symbol->bitmap[i + 1] == 0 || symbol->bitmap[i + 1] == 0xff)
                        && (symbol->bitmap[i + 2] == 0 || symbol->bitmap[i + 2] == 0xff)) {
                    j = (symbol->bitmap[i] == 0) + (symbol->bitmap[i + 1] == 0) * 2 + (symbol->bitmap[i + 2] == 0) * 4;
                    putchar(colour[j]);
                } else {
                    printf("%02X%02X%02X", symbol->bitmap[i], symbol->bitmap[i + 1], symbol->bitmap[i + 2]);
                }
            }
        }
        if (!postfix) {
            putchar('\n');
        } else {
            putchar('"');
            if (*postfix) {
                fputs(postfix, stdout);
            }
        }
    }

    if (!postfix) {
        fputs("     ", stdout);
        for (column = 0; column < symbol->bitmap_width; column++) printf("%d", column % 10);
        fputs("\n     ", stdout);
        for (column = 0; column < symbol->bitmap_width; column += 10) printf("%-3d       ", column);
        putchar('\n');
    }
}

int testUtilBitmapCmp(const struct zint_symbol *symbol, const char *expected, int *row, int *column) {
    static char colour[] = { '0', 'C', 'M', 'B', 'Y', 'G', 'R', '1' };
    int r, c, i, j;
    const char *e = expected;
    const char *ep = expected + strlen(expected);
    char buf[7];

    for (r = 0; r < symbol->bitmap_height; r++) {
        for (c = 0; c < symbol->bitmap_width; c++) {
            if (symbol->output_options & OUT_BUFFER_INTERMEDIATE) {
                if (*e != symbol->bitmap[(r * symbol->bitmap_width) + c]) {
                    *row = r;
                    *column = c;
                    return 1 /*fail*/;
                }
                e++;
            } else {
                i = ((r * symbol->bitmap_width) + c) * 3;
                if ((symbol->bitmap[i] == 0 || symbol->bitmap[i] == 0xff) && (symbol->bitmap[i + 1] == 0 || symbol->bitmap[i + 1] == 0xff)
                        && (symbol->bitmap[i + 2] == 0 || symbol->bitmap[i + 2] == 0xff)) {
                    j = (symbol->bitmap[i] == 0) + (symbol->bitmap[i + 1] == 0) * 2 + (symbol->bitmap[i + 2] == 0) * 4;
                    if (*e != colour[j]) {
                        *row = r;
                        *column = c;
                        return 1 /*fail*/;
                    }
                    e++;
                } else {
                    sprintf(buf, "%02X%02X%02X", symbol->bitmap[i], symbol->bitmap[i + 1], symbol->bitmap[i + 2]);
                    if (strncmp(buf, e, 6) != 0) {
                        *row = r;
                        *column = c;
                        return 1 /*fail*/;
                    }
                    e += 6;
                }
            }
        }
    }

    *row = r;
    *column = c;
    return e != ep || r != symbol->bitmap_height || c != symbol->bitmap_width ? 1 /*fail*/ : 0 /*success*/;
}

int testUtilExists(char *filename) {
    FILE *fp = fopen(filename, "r");
    if (fp == NULL) {
        return 0;
    }
    fclose(fp);
    return 1;
}

int testUtilCmpPngs(char *png1, char *png2) {
    int ret = -1;
#ifndef NO_PNG
    FILE *fp1;
    FILE *fp2;
    png_structp png_ptr1, png_ptr2;
    png_infop info_ptr1, info_ptr2;
    int width1, height1, width2, height2;
    png_byte color_type1, color_type2;
    png_byte bit_depth1, bit_depth2;
    png_bytep row1 = NULL, row2 = NULL;
    size_t rowbytes1, rowbytes2;
    int r;

    fp1 = fopen(png1, "rb");
    if (!fp1) {
        return 2;
    }
    fp2 = fopen(png2, "rb");
    if (!fp2) {
        fclose(fp1);
        return 3;
    }

    png_ptr1 = png_create_read_struct(PNG_LIBPNG_VER_STRING, (png_voidp)NULL, NULL, NULL);
    if (!png_ptr1) {
        fclose(fp1);
        fclose(fp2);
        return 4;
    }
    info_ptr1 = png_create_info_struct(png_ptr1);
    if (!info_ptr1) {
        png_destroy_read_struct(&png_ptr1, (png_infopp)NULL, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 5;
    }

    png_ptr2 = png_create_read_struct(PNG_LIBPNG_VER_STRING, (png_voidp)NULL, NULL, NULL);
    if (!png_ptr2) {
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 6;
    }
    info_ptr2 = png_create_info_struct(png_ptr2);
    if (!info_ptr2) {
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        png_destroy_read_struct(&png_ptr2, (png_infopp)NULL, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 7;
    }

    if (setjmp(png_jmpbuf(png_ptr1))) {
        if (row1) {
            free(row1);
        }
        if (row2) {
            free(row2);
        }
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        png_destroy_read_struct(&png_ptr2, &info_ptr2, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 8;
    }
    if (setjmp(png_jmpbuf(png_ptr2))) {
        if (row1) {
            free(row1);
        }
        if (row2) {
            free(row2);
        }
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        png_destroy_read_struct(&png_ptr2, &info_ptr2, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 9;
    }

    png_init_io(png_ptr1, fp1);
    png_init_io(png_ptr2, fp2);

    png_read_info(png_ptr1, info_ptr1);
    png_read_info(png_ptr2, info_ptr2);

    width1 = png_get_image_width(png_ptr1, info_ptr1);
    height1 = png_get_image_height(png_ptr1, info_ptr1);
    width2 = png_get_image_width(png_ptr2, info_ptr2);
    height2 = png_get_image_height(png_ptr2, info_ptr2);

    if (width1 != width2 || height1 != height2) {
        printf("width1 %d, width2 %d, height1 %d, height2 %d\n", width1, width2, height1, height2);
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        png_destroy_read_struct(&png_ptr2, &info_ptr2, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 10;
    }

    color_type1 = png_get_color_type(png_ptr1, info_ptr1);
    bit_depth1 = png_get_bit_depth(png_ptr1, info_ptr1);
    if (bit_depth1 == 16) {
        png_set_scale_16(png_ptr1);
    }
    if (color_type1 == PNG_COLOR_TYPE_PALETTE) {
        png_set_palette_to_rgb(png_ptr1);
    }
    if (color_type1 == PNG_COLOR_TYPE_GRAY && bit_depth1 < 8) {
        png_set_expand_gray_1_2_4_to_8(png_ptr1);
    }
    if (png_get_valid(png_ptr1, info_ptr1, PNG_INFO_tRNS)) {
        png_set_tRNS_to_alpha(png_ptr1);
    }
    if (color_type1 == PNG_COLOR_TYPE_RGB || color_type1 == PNG_COLOR_TYPE_GRAY || color_type1 == PNG_COLOR_TYPE_PALETTE) {
        png_set_filler(png_ptr1, 0xFF, PNG_FILLER_AFTER);
    }
    if (color_type1 == PNG_COLOR_TYPE_GRAY || color_type1 == PNG_COLOR_TYPE_GRAY_ALPHA) {
        png_set_gray_to_rgb(png_ptr1);
    }

    color_type2 = png_get_color_type(png_ptr2, info_ptr2);
    bit_depth2 = png_get_bit_depth(png_ptr2, info_ptr2);
    if (bit_depth2 == 16) {
        png_set_scale_16(png_ptr2);
    }
    if (color_type2 == PNG_COLOR_TYPE_PALETTE) {
        png_set_palette_to_rgb(png_ptr2);
    }
    if (color_type2 == PNG_COLOR_TYPE_GRAY && bit_depth2 < 8) {
        png_set_expand_gray_1_2_4_to_8(png_ptr2);
    }
    if (png_get_valid(png_ptr2, info_ptr2, PNG_INFO_tRNS)) {
        png_set_tRNS_to_alpha(png_ptr2);
    }
    if (color_type2 == PNG_COLOR_TYPE_RGB || color_type2 == PNG_COLOR_TYPE_GRAY || color_type2 == PNG_COLOR_TYPE_PALETTE) {
        png_set_filler(png_ptr2, 0xFF, PNG_FILLER_AFTER);
    }
    if (color_type2 == PNG_COLOR_TYPE_GRAY || color_type2 == PNG_COLOR_TYPE_GRAY_ALPHA) {
        png_set_gray_to_rgb(png_ptr2);
    }

    png_read_update_info(png_ptr1, info_ptr1);
    png_read_update_info(png_ptr2, info_ptr2);

    rowbytes1 = png_get_rowbytes(png_ptr1, info_ptr1);
    rowbytes2 = png_get_rowbytes(png_ptr2, info_ptr2);
    if (rowbytes1 != rowbytes2) {
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        png_destroy_read_struct(&png_ptr2, &info_ptr2, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 11;
    }

    row1 = malloc(rowbytes1);
    if (!row1) {
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        png_destroy_read_struct(&png_ptr2, &info_ptr2, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 12;
    }
    row2 = malloc(rowbytes2);
    if (!row2) {
        free(row1);
        png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
        png_destroy_read_struct(&png_ptr2, &info_ptr2, (png_infopp)NULL);
        fclose(fp1);
        fclose(fp2);
        return 13;
    }

    for (r = 0; r < height1; r++) {
        png_read_row(png_ptr1, row1, NULL);
        png_read_row(png_ptr2, row2, NULL);
        if (memcmp(row1, row2, rowbytes1) != 0) {
            break;
        }
    }
    ret = r == height1 ? 0 : 20;

    free(row1);
    free(row2);
    png_destroy_read_struct(&png_ptr1, &info_ptr1, (png_infopp)NULL);
    png_destroy_read_struct(&png_ptr2, &info_ptr2, (png_infopp)NULL);
    fclose(fp1);
    fclose(fp2);
#endif
    return ret;
}

int testUtilCmpTxts(char *txt1, char *txt2) {
    int ret = -1;
    FILE *fp1;
    FILE *fp2;
    char buf1[1024];
    char buf2[1024];
    size_t len1 = 0, len2 = 0;

    fp1 = fopen(txt1, "r");
    if (!fp1) {
        return 2;
    }
    fp2 = fopen(txt2, "r");
    if (!fp2) {
        fclose(fp1);
        return 3;
    }

    while (1) {
        if (fgets(buf1, sizeof(buf1), fp1) == NULL) {
            if (fgets(buf2, sizeof(buf2), fp2) != NULL) {
                ret = 4;
                break;
            }
            break;
        }
        if (fgets(buf2, sizeof(buf2), fp2) == NULL) {
            ret = 5;
            break;
        }
        len1 = strlen(buf1);
        len2 = strlen(buf2);
        if (len1 != len2) {
            ret = 6;
            break;
        }
        if (strcmp(buf1, buf2) != 0) {
            ret = 7;
            break;
        }
    }
    if (ret == -1) {
        ret = feof(fp1) && feof(fp2) ? 0 : 20;
    }
    fclose(fp1);
    fclose(fp2);

    return ret;
}

int testUtilCmpBins(char *bin1, char *bin2) {
    int ret = -1;
    FILE *fp1;
    FILE *fp2;
    char buf1[1024];
    char buf2[1024];
    size_t len1 = 0, len2 = 0;

    fp1 = fopen(bin1, "rb");
    if (!fp1) {
        return 2;
    }
    fp2 = fopen(bin2, "rb");
    if (!fp2) {
        fclose(fp1);
        return 3;
    }

    do {
        len1 = fread(buf1, 1, sizeof(buf1), fp1);
        len2 = fread(buf2, 1, sizeof(buf2), fp2);
        if (len1 != len2) {
            ret = 6;
            break;
        }
        if (memcmp(buf1, buf2, len1) != 0) {
            ret = 7;
            break;
        }
    } while (!feof(fp1) && !feof(fp2));

    if (ret == -1) {
        ret = feof(fp1) && feof(fp2) ? 0 : 20;
    }
    fclose(fp1);
    fclose(fp2);

    return ret;
}

int testUtilCmpSvgs(char *svg1, char *svg2) {
    return testUtilCmpTxts(svg1, svg2);
}

int testUtilCmpEpss(char *eps1, char *eps2) {
    int ret = -1;
    FILE *fp1;
    FILE *fp2;
    char buf1[1024];
    char buf2[1024];
    size_t len1 = 0, len2 = 0;
    char first_line[] = "%!PS-Adobe-3.0 EPSF-3.0\n";
    char second_line_start[] = "%%Creator: Zint ";

    fp1 = fopen(eps1, "r");
    if (!fp1) {
        return 2;
    }
    fp2 = fopen(eps2, "r");
    if (!fp2) {
        fclose(fp1);
        return 3;
    }

    // Preprocess the 1st 2 lines to avoid comparing changeable Zint version in 2nd line
    if (fgets(buf1, sizeof(buf1), fp1) == NULL || strcmp(buf1, first_line) != 0
            || fgets(buf2, sizeof(buf2), fp2) == NULL || strcmp(buf2, first_line) != 0) {
        ret = 10;
    } else if (fgets(buf1, sizeof(buf1), fp1) == NULL || strncmp(buf1, second_line_start, sizeof(second_line_start) - 1) != 0
            || fgets(buf2, sizeof(buf2), fp2) == NULL || strncmp(buf2, second_line_start, sizeof(second_line_start) - 1) != 0) {
        ret = 11;
    }

    if (ret == -1) {
        while (1) {
            if (fgets(buf1, sizeof(buf1), fp1) == NULL) {
                if (fgets(buf2, sizeof(buf2), fp2) != NULL) {
                    ret = 4;
                    break;
                }
                break;
            }
            if (fgets(buf2, sizeof(buf2), fp2) == NULL) {
                ret = 5;
                break;
            }
            len1 = strlen(buf1);
            len2 = strlen(buf2);
            if (len1 != len2) {
                ret = 6;
                break;
            }
            if (strcmp(buf1, buf2) != 0) {
                ret = 7;
                break;
            }
        }
        if (ret == -1) {
            ret = feof(fp1) && feof(fp2) ? 0 : 20;
        }
    }
    fclose(fp1);
    fclose(fp2);

    return ret;
}

int testUtilHaveIdentify() {
    return system("identify --version > /dev/null") == 0;
}

int testUtilVerifyIdentify(char *filename, int debug) {
    char cmd[512 + 128];

    if (strlen(filename) > 512) {
        return -1;
    }
    // Verbose option does a more thorough check
    if (debug & ZINT_DEBUG_TEST_PRINT) {
        // Verbose very noisy though so for quick check just return default output
        if (debug & ZINT_DEBUG_TEST_LESS_NOISY) {
            sprintf(cmd, "identify %s", filename);
        } else {
            sprintf(cmd, "identify -verbose %s", filename);
        }
    } else {
        sprintf(cmd, "identify -verbose %s > /dev/null", filename);
    }

    return system(cmd);
}

int testUtilHaveLibreOffice() {
    return system("libreoffice --version > /dev/null") == 0;
}

int testUtilVerifyLibreOffice(char *filename, int debug) {
    char cmd[512 + 128];
    char svg[512];
    char *slash, *dot;
    char buf[16384];
    char *b = buf, *be = buf + sizeof(buf) - 1;
    FILE *fp;
    int len;

    /* Hack to read SVG produced by LibreOffice and search for 'x="-32767"' which indicates it didn't load barcode file */
    if (strlen(filename) > 512) {
        return -1;
    }
    slash = strrchr(filename, '/');
    if (slash) {
        strcpy(svg, slash + 1);
    } else {
        strcpy(svg, filename);
    }
    dot = strrchr(svg, '.');
    if (dot) {
        strcpy(dot, ".svg");
    } else {
        strcat(svg, ".svg");
    }
    if (strcmp(svg, filename) == 0) {
        fprintf(stderr, "testUtilVerifyLibreOffice: input '%s' same as svg '%s'\n", filename, svg);
        return -1;
    }

    sprintf(cmd, "libreoffice --convert-to svg %s > /dev/null 2>&1", filename);
    if (debug & ZINT_DEBUG_TEST_PRINT) {
        printf("%s\n", cmd);
    }
    if (system(cmd) != 0) {
        fprintf(stderr, "testUtilVerifyLibreOffice: failed to run '%s'\n", cmd);
        return -1;
    }

    fp = fopen(svg, "r");
    if (!fp) {
        fprintf(stderr, "testUtilVerifyLibreOffice: failed to open '%s' (%s)\n", svg, cmd);
        return -1;
    }
    while (!feof(fp) && b < be) {
        if (fgets(b, be - b, fp) == NULL) {
            fprintf(stderr, "testUtilVerifyLibreOffice: failed to get line from '%s' (%s)\n", svg, cmd);
            fclose(fp);
            return -1;
        }
        len = (int) strlen(b);
        if (len == 0) {
            break;
        }
        b += len;
    }
    *b = '\0';
    fclose(fp);

    if (strlen(buf) < 1024) {
        fprintf(stderr, "testUtilVerifyLibreOffice: failed to get much input from '%s' (%s)\n", svg, cmd);
        return -1;
    }
    if (strstr(buf, "x=\"-32767\"") != NULL) {
        return -1;
    }
    remove(svg);

    return 0;
}

int testUtilHaveGhostscript() {
    return system("gs -v > /dev/null") == 0;
}

int testUtilVerifyGhostscript(char *filename, int debug) {
    char cmd[512 + 128];

    if (strlen(filename) > 512) {
        return -1;
    }
    if (debug & ZINT_DEBUG_TEST_PRINT) {
        sprintf(cmd, "gs -dNOPAUSE -dBATCH -dNODISPLAY -q %s", filename); // Prints nothing of interest with or without -q unless bad
        printf("%s\n", cmd);
    } else {
        sprintf(cmd, "gs -dNOPAUSE -dBATCH -dNODISPLAY -q %s", filename);
    }

    return system(cmd);
}

/* v.Nu https://github.com/validator/validator
 * Needs "$INSTALL_DIR/vnu-runtime-image/bin" in PATH */
int testUtilHaveVnu() {
    return system("vnu --version > /dev/null") == 0;
}

int testUtilVerifyVnu(char *filename, int debug) {
    char buf[512 + 128];

    if (strlen(filename) > 512) {
        return -1;
    }
    if (debug & ZINT_DEBUG_TEST_PRINT) {
        sprintf(buf, "vnu --svg --verbose %s", filename);
        printf("%s\n", buf);
    } else {
        sprintf(buf, "vnu --svg %s", filename);
    }

    return system(buf);
}

static const char *testUtilBwippName(int index, const struct zint_symbol *symbol, int option_1, int option_2, int option_3, int debug, int *linear_row_height, int *gs1_cvt) {
    struct item {
        const char *name;
        int define;
        int val;
        int can_option_1;
        int can_option_2;
        int can_option_3;
        int linear_row_height;
        int gs1_cvt;
    };
    static const struct item data[] = {
        { "", -1, 0, 0, 0, 0, 0, 0, },
        { "code11", BARCODE_CODE11, 1, 0, 1, 0, 0, 0, },
        { "matrix2of5", BARCODE_C25STANDARD, 2, 0, 0, 0, 0, 0, },
        { "interleaved2of5", BARCODE_C25INTER, 3, 0, 0, 0, 0, 0, },
        { "iata2of5", BARCODE_C25IATA, 4, 0, 0, 0, 0, 0, },
        { "", -1, 5, 0, 0, 0, 0, 0, },
        { "datalogic2of5", BARCODE_C25LOGIC, 6, 0, 0, 0, 0, 0, },
        { "industrial2of5", BARCODE_C25IND, 7, 0, 0, 0, 0, 0, },
        { "code39", BARCODE_CODE39, 8, 0, 1, 0, 0, 0, },
        { "code39ext", BARCODE_EXCODE39, 9, 0, 1, 0, 0, 0, },
        { "", -1, 10, 0, 0, 0, 0, 0, },
        { "", -1, 11, 0, 0, 0, 0, 0, },
        { "", -1, 12, 0, 0, 0, 0, 0, },
        { "ean13", BARCODE_EANX, 13, 0, 1, 0, 0, 1 /*gs1_cvt*/, },
        { "ean13", BARCODE_EANX_CHK, 14, 0, 1, 0, 0, 1, },
        { "", -1, 15, 0, 0, 0, 0, 0, },
        { "gs1-128", BARCODE_GS1_128, 16, 0, 0, 0, 0, 1 /*gs1_cvt*/, },
        { "", -1, 17, 0, 0, 0, 0, 0, },
        { "rationalizedCodabar", BARCODE_CODABAR, 18, 0, 1, 0, 0, 0, },
        { "", -1, 19, 0, 0, 0, 0, 0, },
        { "code128", BARCODE_CODE128, 20, 0, 0, 0, 0, 0, },
        { "leitcode", BARCODE_DPLEIT, 21, 0, 0, 0, 0, 0, },
        { "identcode", BARCODE_DPIDENT, 22, 0, 0, 0, 0, 0, },
        { "code16k", BARCODE_CODE16K, 23, 0, 0, 0, 8 /*linear_row_height*/, 0, },
        { "code49", BARCODE_CODE49, 24, 0, 0, 0, 8 /*linear_row_height*/, 0, },
        { "code93", BARCODE_CODE93, 25, 0, 0, 0, 0, 0, },
        { "", -1, 26, 0, 0, 0, 0, 0, },
        { "", -1, 27, 0, 0, 0, 0, 0, },
        { "flattermarken", BARCODE_FLAT, 28, 0, 0, 0, 0, 0, },
        { "databaromni", BARCODE_DBAR_OMN, 29, 0, 0, 0, 0, 1 /*gs1_cvt*/, },
        { "databarlimited", BARCODE_DBAR_LTD, 30, 0, 0, 0, 0, 1, },
        { "databarexpanded", BARCODE_DBAR_EXP, 31, 0, 1, 0, 1 /*linear_row_height*/, 1, },
        { "telepen", BARCODE_TELEPEN, 32, 0, 0, 0, 0, 0, },
        { "", -1, 33, 0, 0, 0, 0, 0, },
        { "upca", BARCODE_UPCA, 34, 0, 1, 0, 0, 1 /*gs1_cvt*/, },
        { "upca", BARCODE_UPCA_CHK, 35, 0, 1, 0, 0, 1, },
        { "", -1, 36, 0, 0, 0, 0, 0, },
        { "upce", BARCODE_UPCE, 37, 0, 1, 0, 0, 1 /*gs1_cvt*/, },
        { "upce", BARCODE_UPCE_CHK, 38, 0, 1, 0, 0, 1, },
        { "", -1, 39, 0, 0, 0, 0, 0, },
        { "postnet", BARCODE_POSTNET, 40, 0, 0, 0, 0, 0, },
        { "", -1, 41, 0, 0, 0, 0, 0, },
        { "", -1, 42, 0, 0, 0, 0, 0, },
        { "", -1, 43, 0, 0, 0, 0, 0, },
        { "", -1, 44, 0, 0, 0, 0, 0, },
        { "", -1, 45, 0, 0, 0, 0, 0, },
        { "", -1, 46, 0, 0, 0, 0, 0, },
        { "msi", BARCODE_MSI_PLESSEY, 47, 0, 1, 0, 0, 0, },
        { "", -1, 48, 0, 0, 0, 0, 0, },
        { "symbol", BARCODE_FIM, 49, 0, 0, 0, 0, 0, },
        { "code39", BARCODE_LOGMARS, 50, 0, 1, 0, 0, 0, },
        { "pharmacode", BARCODE_PHARMA, 51, 0, 0, 0, 1 /*linear_row_height*/, 0, },
        { "pzn", BARCODE_PZN, 52, 0, 0, 0, 0, 0, },
        { "pharmacode2", BARCODE_PHARMA_TWO, 53, 0, 0, 0, 0, 0, },
        { "", -1, 54, 0, 0, 0, 0, 0, },
        { "pdf417", BARCODE_PDF417, 55, 1, 1, 0, 0, 0, },
        { "pdf417compact", BARCODE_PDF417COMP, 56, 1, 1, 0, 0, 0, },
        { "maxicode", BARCODE_MAXICODE, 57, 0, 0, 0, 0, 0, },
        { "qrcode", BARCODE_QRCODE, 58, 0, 0, 0, 0, 0, },
        { "", -1, 59, 0, 0, 0, 0, 0, },
        { "", BARCODE_CODE128B, 60, 0, 0, 0, 0, 0, },
        { "", -1, 61, 0, 0, 0, 0, 0, },
        { "", -1, 62, 0, 0, 0, 0, 0, },
        { "auspost", BARCODE_AUSPOST, 63, 0, 0, 0, 0, 0, },
        { "", -1, 64, 0, 0, 0, 0, 0, },
        { "", -1, 65, 0, 0, 0, 0, 0, },
        { "", BARCODE_AUSREPLY, 66, 0, 0, 0, 0, 0, },
        { "", BARCODE_AUSROUTE, 67, 0, 0, 0, 0, 0, },
        { "", BARCODE_AUSREDIRECT, 68, 0, 0, 0, 0, 0, },
        { "isbn", BARCODE_ISBNX, 69, 0, 1, 0, 0, 1 /*gs1_cvt*/, },
        { "royalmail", BARCODE_RM4SCC, 70, 0, 0, 0, 0, 0, },
        { "datamatrix", BARCODE_DATAMATRIX, 71, 0, 1, 1, 1, 0, },
        { "ean14", BARCODE_EAN14, 72, 0, 0, 0, 0, 1 /*gs1_cvt*/, },
        { "code39", BARCODE_VIN, 73, 0, 0, 0, 0, 0, },
        { "codablockf", BARCODE_CODABLOCKF, 74, 1, 1, 0, 10 /*linear_row_height*/, 0, },
        { "sscc18", BARCODE_NVE18, 75, 0, 0, 0, 0, 1 /*gs1_cvt*/, },
        { "japanpost", BARCODE_JAPANPOST, 76, 0, 0, 0, 0, 0, },
        { "", BARCODE_KOREAPOST, 77, 0, 0, 0, 0, 0, },
        { "", -1, 78, 0, 0, 0, 0, 0, },
        { "databarstacked", BARCODE_DBAR_STK, 79, 0, 0, 0, 0, 1 /*gs1_cvt*/, },
        { "databarstackedomni", BARCODE_DBAR_OMNSTK, 80, 0, 0, 0, 33 /*linear_row_height*/, 1, },
        { "databarexpandedstacked", BARCODE_DBAR_EXPSTK, 81, 0, 1, 0, 34 /*linear_row_height*/, 1, },
        { "planet", BARCODE_PLANET, 82, 0, 0, 0, 0, 0, },
        { "", -1, 83, 0, 0, 0, 0, 0, },
        { "micropdf417", BARCODE_MICROPDF417, 84, 0, 1, 0, 0, 0, },
        { "onecode", BARCODE_USPS_IMAIL, 85, 0, 0, 0, 0, 0, },
        { "plessey", BARCODE_PLESSEY, 86, 0, 0, 0, 0, 0, },
        { "telepennumeric", BARCODE_TELEPEN_NUM, 87, 0, 0, 0, 0, 0, },
        { "", -1, 88, 0, 0, 0, 0, 0, },
        { "itf14", BARCODE_ITF14, 89, 0, 0, 0, 0, 0, },
        { "kix", BARCODE_KIX, 90, 0, 0, 0, 0, 0, },
        { "", -1, 91, 0, 0, 0, 0, 0, },
        { "azteccode", BARCODE_AZTEC, 92, 0, 1, 0, 0, 0, },
        { "daft", BARCODE_DAFT, 93, 0, 0, 0, 0, 0, },
        { "", -1, 94, 0, 0, 0, 0, 0, },
        { "", -1, 95, 0, 0, 0, 0, 0, },
        { "", -1, 96, 0, 0, 0, 0, 0, },
        { "microqrcode", BARCODE_MICROQR, 97, 0, 0, 0, 0, 0, },
        { "hibccode128", BARCODE_HIBC_128, 98, 0, 0, 0, 0, 0, },
        { "hibccode39", BARCODE_HIBC_39, 99, 0, 0, 0, 0, 0, },
        { "", -1, 100, 0, 0, 0, 0, 0, },
        { "", -1, 101, 0, 0, 0, 0, 0, },
        { "hibcdatamatrix", BARCODE_HIBC_DM, 102, 0, 1, 1, 0, 0, },
        { "", -1, 103, 0, 0, 0, 0, 0, },
        { "hibcqrcode", BARCODE_HIBC_QR, 104, 0, 0, 0, 0, 0, },
        { "", -1, 105, 0, 0, 0, 0, 0, },
        { "hibcpdf417", BARCODE_HIBC_PDF, 106, 1, 1, 0, 0, 0, },
        { "", -1, 107, 0, 0, 0, 0, 0, },
        { "hibcmicropdf417", BARCODE_HIBC_MICPDF, 108, 0, 1, 0, 0, 0, },
        { "", -1, 109, 0, 0, 0, 0, 0, },
        { "hibccodablockf", BARCODE_HIBC_BLOCKF, 110, 1, 1, 0, 10 /*linear_row_height*/, 0, },
        { "", -1, 111, 0, 0, 0, 0, 0, },
        { "hibcazteccode", BARCODE_HIBC_AZTEC, 112, 1, 0, 1, 0, 0, },
        { "", -1, 113, 0, 0, 0, 0, 0, },
        { "", -1, 114, 0, 0, 0, 0, 0, },
        { "dotcode", BARCODE_DOTCODE, 115, 0, 1, 1, 0, 0, },
        { "hanxin", BARCODE_HANXIN, 116, 0, 0, 0, 0, 0, },
        { "", -1, 117, 0, 0, 0, 0, 0, },
        { "", -1, 118, 0, 0, 0, 0, 0, },
        { "", -1, 119, 0, 0, 0, 0, 0, },
        { "", -1, 120, 0, 0, 0, 0, 0, },
        { "", BARCODE_MAILMARK, 121, 0, 0, 0, 0, 0, }, /* Note BWIPP mailmark is Data Matrix variant */
        { "", -1, 122, 0, 0, 0, 0, 0, },
        { "", -1, 123, 0, 0, 0, 0, 0, },
        { "", -1, 124, 0, 0, 0, 0, 0, },
        { "", -1, 125, 0, 0, 0, 0, 0, },
        { "", -1, 126, 0, 0, 0, 0, 0, },
        { "", -1, 127, 0, 0, 0, 0, 0, },
        { "aztecrune", BARCODE_AZRUNE, 128, 0, 0, 0, 0, 0, },
        { "code32", BARCODE_CODE32, 129, 0, 0, 0, 0, 0, },
        { "ean13composite", BARCODE_EANX_CC, 130, 1, 1, 0, 72 /*linear_row_height*/, 1 /*gs1_cvt*/, },
        { "gs1-128composite", BARCODE_GS1_128_CC, 131, 1, 0, 0, 36, 1, },
        { "databaromnicomposite", BARCODE_DBAR_OMN_CC, 132, 1, 0, 0, 33, 1, },
        { "databarlimitedcomposite", BARCODE_DBAR_LTD_CC, 133, 1, 0, 0, 10 /*linear_row_height*/, 1, },
        { "databarexpandedcomposite", BARCODE_DBAR_EXP_CC, 134, 1, 1, 0, 34 /*linear_row_height*/, 1, },
        { "upcacomposite", BARCODE_UPCA_CC, 135, 1, 1, 0, 72, 1, },
        { "upcecomposite", BARCODE_UPCE_CC, 136, 1, 1, 0, 72, 1, },
        { "databarstackedcomposite", BARCODE_DBAR_STK_CC, 137, 1, 0, 0, 0, 1, },
        { "databarstackedomnicomposite", BARCODE_DBAR_OMNSTK_CC, 138, 1, 0, 0, 33 /*linear_row_height*/, 1, },
        { "databarexpandedstackedcomposite", BARCODE_DBAR_EXPSTK_CC, 139, 1, 1, 0, 34 /*linear_row_height*/, 1, },
        { "channelcode", BARCODE_CHANNEL, 140, 0, 0, 0, 0, 0, },
        { "codeone", BARCODE_CODEONE, 141, 0, 1, 0, 0, 0, },
        { "", BARCODE_GRIDMATRIX, 142, 0, 0, 0, 0, 0, },
        { "", BARCODE_UPNQR, 143, 0, 0, 0, 0, 0, },
        { "ultracode", BARCODE_ULTRA, 144, 0, 0, 0, 0, 0, },
        { "rectangularmicroqrcode", BARCODE_RMQR, 145, 0, 0, 0, 0, 0, },
    };
    static const int data_size = ARRAY_SIZE(data);

    int symbology = symbol->symbology;
    int gs1 = (symbol->input_mode & 0x07) == GS1_MODE;

    if (symbology < 0 || symbology >= data_size) {
        fprintf(stderr, "testUtilBwippName: unknown symbology (%d)\n", symbology);
        abort();
    }
    if (data[symbology].val != symbology || (data[symbology].define != -1 && data[symbology].define != symbology)) { // Self-check
        fprintf(stderr, "testUtilBwippName: data table out of sync (%d)\n", symbology);
        abort();
    }
    if (data[symbology].name[0] == '\0') {
        if (debug & ZINT_DEBUG_TEST_PRINT) {
            printf("i:%d %s no BWIPP mapping\n", index, testUtilBarcodeName(symbology));
        }
        return NULL;
    }
    if ((option_1 != -1 && !data[symbology].can_option_1) || (option_2 != -1 && !data[symbology].can_option_2)
             || (option_3 != -1 && !data[symbology].can_option_3)) {
        if (debug & ZINT_DEBUG_TEST_PRINT) {
            printf("i:%d %s not BWIPP compatible, options not supported, option_1 %d, option_2 %d, option_3 %d\n", index, testUtilBarcodeName(symbology), option_1, option_2, option_3);
        }
        return NULL;
    }

    if (symbology == BARCODE_CODE11) {
        if (option_2 != 1 && option_2 != 2) { /* 2 check digits (Zint default) not supported */
            if (debug & ZINT_DEBUG_TEST_PRINT) {
                printf("i:%d %s not BWIPP compatible, 2 check digits not supported, option_1 %d, option_2 %d\n", index, testUtilBarcodeName(symbology), option_1, option_2);
            }
            return NULL;
        }
    } else if (symbology == BARCODE_CODABLOCKF || symbology == BARCODE_HIBC_BLOCKF) {
        if (option_1 == 1) { /* Single row i.e. CODE128 not supported */
            if (debug & ZINT_DEBUG_TEST_PRINT) {
                printf("i:%d %s not BWIPP compatible, single row not supported, option_1 %d\n", index, testUtilBarcodeName(symbology), option_1);
            }
            return NULL;
        }
    }

    if (linear_row_height) {
        *linear_row_height = data[symbology].linear_row_height;
    }
    if (gs1_cvt) {
        *gs1_cvt = data[symbology].gs1_cvt;
    }
    if (gs1) {
        if (symbology == BARCODE_DATAMATRIX) {
            if (gs1_cvt) {
                *gs1_cvt = 1;
            }
            return "gs1datamatrix";
        } else if (symbology == BARCODE_AZTEC) {
            if (debug & ZINT_DEBUG_TEST_PRINT) {
                printf("i:%d %s not BWIPP compatible, GS1_MODE not supported\n", index, testUtilBarcodeName(symbology));
            }
            return NULL;
        } else if (symbology == BARCODE_DOTCODE) {
            if (gs1_cvt) {
                *gs1_cvt = 1;
            }
            return "gs1dotcode";
        }
    }

    return data[symbology].name;
}

int testUtilCanBwipp(int index, const struct zint_symbol *symbol, int option_1, int option_2, int option_3, int debug) {
    return testUtilBwippName(index, symbol, option_1, option_2, option_3, debug, NULL, NULL) != NULL;
}

static void testUtilBwippCvtGS1Data(char *bwipp_data, int upcean, int *addon_posn) {
    char *b;
    int pipe = 0;

    *addon_posn = 0;
    for (b = bwipp_data; *b; b++) {
        if (upcean && *b == '|') {
            pipe = 1;
        }
        if (*b == '[') {
            *b = '(';
        } else if (*b == ']') {
            *b = ')';
        } else if (*b == '+' && upcean && !pipe) {
            *b = ' ';
            *addon_posn = b - bwipp_data;
        }
    }
}

static char *testUtilBwippEscape(char *bwipp_data, int bwipp_data_size, const char *data, int length, int zint_escape_mode, int eci, int *parse, int *parsefnc) {
    char *b = bwipp_data;
    char *be = b + bwipp_data_size;
    unsigned char *d = (unsigned char *) data;
    unsigned char *de = (unsigned char *) data + length;

    *parse = *parsefnc = 0;

    if (eci) {
        sprintf(bwipp_data, "^ECI%06d", eci);
        *parsefnc = 1;
        b = bwipp_data + 10;
    }

    while (b < be && d < de) {
        /* Have to escape double quote otherwise Ghostscript gives "Unterminated quote in @-file" for some reason */
        /* Escape single quote also to avoid having to do proper shell escaping TODO: proper shell escaping */
        if (*d < 0x20 || *d >= 0x7F || *d == '^' || *d == '"' || *d == '\'') {
            if (b + 4 >= be) {
                fprintf(stderr, "testUtilBwippEscape: bwipp_data buffer full\n");
                return NULL;
            }
            sprintf(b, "^%03u", *d++);
            b += 4;
            *parse = 1;
        } else if (zint_escape_mode && *d == '\\' && d + 1 < de) {
            int val;
            switch (*++d) {
                case '0': val = 0x00; /* Null */ break;
                case 'E': val = 0x04; /* End of Transmission */ break;
                case 'a': val = 0x07; /* Bell */ break;
                case 'b': val = 0x08; /* Backspace */ break;
                case 't': val = 0x09; /* Horizontal tab */ break;
                case 'n': val = 0x0a; /* Line feed */ break;
                case 'v': val = 0x0b; /* Vertical tab */ break;
                case 'f': val = 0x0c; /* Form feed */ break;
                case 'r': val = 0x0d; /* Carriage return */ break;
                case 'e': val = 0x1b; /* Escape */ break;
                case 'G': val = 0x1d; /* Group Separator */ break;
                case 'R': val = 0x1e; /* Record Separator */ break;
                //case 'x': val = 0; /* TODO: implement */ break;
                case '\\': val = '\\'; break;
                //case 'u': val = 0; /* TODO: implement */ break;
                default: fprintf(stderr, "testUtilBwippEscape: unknown escape %c\n", *d); return NULL; break;
            }
            if (b + 4 >= be) {
                fprintf(stderr, "testUtilBwippEscape: bwipp_data buffer full\n");
                return NULL;
            }
            sprintf(b, "^%03d", val);
            b += 4;
            d++;
            *parse = 1;
        } else {
            *b++ = *d++;
        }
    }

    if (b == be && d < de) {
        fprintf(stderr, "testUtilBwippEscape: bwipp_data buffer full\n");
        return NULL;
    }
    *b = '\0';

    return bwipp_data;
}

static void testUtilISBNHyphenate(char *bwipp_data, int addon_posn) {
    /* Hack in 4 hyphens in fixed format, wrong for many ISBNs */
    char temp[13 + 4 + 1 + 5 + 1];
    int len = strlen(bwipp_data);
    int i, j;

    if (len < 13 || (addon_posn && addon_posn < 13 ) || len >= (int) sizeof(temp)) {
        return;
    }
    for (i = 0, j = 0; i <= len; i++, j++) {
        if (i == 3 || i == 5 || i == 10 || i == 12) {
            temp[j++] = '-';
        }
        temp[j] = bwipp_data[i];
    }
    strcpy(bwipp_data, temp);
}

#define GS_INITIAL_LEN  35 /* Length of cmd up to -q */

int testUtilBwipp(int index, const struct zint_symbol *symbol, int option_1, int option_2, int option_3, const char *data, int length, const char *primary, char *buffer, int buffer_size) {
    const char *cmd_fmt = "gs -dNOPAUSE -dBATCH -dNODISPLAY -q -sb=%s -sd='%s' ../tools/bwipp_dump.ps";
    const char *cmd_opts_fmt = "gs -dNOPAUSE -dBATCH -dNODISPLAY -q -sb=%s -sd='%s' -so='%s' ../tools/bwipp_dump.ps";
    const char *cmd_fmt2 = "gs -dNOPAUSE -dBATCH -dNODISPLAY -q -sb=%s -sd='%.2043s' -sd2='%s' ../tools/bwipp_dump.ps"; // If data > 2K
    const char *cmd_opts_fmt2 = "gs -dNOPAUSE -dBATCH -dNODISPLAY -q -sb=%s -sd='%.2043s' -sd2='%s' -so='%s' ../tools/bwipp_dump.ps";

    int symbology = symbol->symbology;
    int data_len = length == -1 ? (int) strlen(data) : length;
    int primary_len = primary ? (int) strlen(primary) : 0;
    int max_data_len = 4 + primary_len + 1 + 1 + data_len * 4 + 32; /* 4 AI prefix + primary + '|' + leading zero + escaped data + fudge */

    int eci_length = get_eci_length(symbol->eci, (const unsigned char *) data, data_len);
    char converted[eci_length + 1];
    char cmd[max_data_len + 1024];
    const char *bwipp_barcode = NULL;
    char *bwipp_opts = NULL;
    char bwipp_data[max_data_len + 1];
    char bwipp_opts_buf[512];
    int bwipp_row_height[symbol->rows];
    int linear_row_height;
    int gs1_cvt;
    int user_mask;

    FILE *fp = NULL;
    int cnt;

    char *b = buffer;
    char *be = buffer + buffer_size;
    int r, h;
    int parse, parsefnc;

    int upcean = is_extendable(symbology);
    int upca = symbology == BARCODE_UPCA || symbology == BARCODE_UPCA_CHK || symbology == BARCODE_UPCA_CC;
    int addon_posn;
    int eci;

    bwipp_data[0] = bwipp_opts_buf[0] = '\0';

    bwipp_barcode = testUtilBwippName(index, symbol, option_1, option_2, option_3, 0, &linear_row_height, &gs1_cvt);
    if (!bwipp_barcode) {
        fprintf(stderr, "i:%d testUtilBwipp: no mapping for %s, option_1 %d, option_2 %d, option_3 %d\n", index, testUtilBarcodeName(symbology), option_1, option_2, option_3);
        return -1;
    }

    for (r = 0; r < symbol->rows; r++) {
        bwipp_row_height[r] = symbol->row_height[r] ? symbol->row_height[r] : linear_row_height;
        //fprintf(stderr, "bwipp_row_height[%d] %d, symbol->row_height[%d] %d\n", r, bwipp_row_height[r], r, symbol->row_height[r]);
    }
    if (symbology == BARCODE_DBAR_EXP) {
        bwipp_row_height[symbol->rows - 1] = 1;
    } else if (symbology == BARCODE_DBAR_OMN_CC) {
        bwipp_row_height[symbol->rows - 1] = 33;
    } else if (symbology == BARCODE_GS1_128_CC) {
        bwipp_row_height[symbol->rows - 1] = 36;
    }

    if ((symbol->input_mode & 0x07) == UNICODE_MODE && ZBarcode_Cap(symbology, ZINT_CAP_ECI) && is_eci_convertible(symbol->eci)) {
        if (utf8_to_eci(symbol->eci, (const unsigned char *) data, (unsigned char *) converted, &data_len) == 0) {
            eci = symbol->eci;
        } else {
            if (symbol->eci != 0) {
                eci = get_best_eci((const unsigned char *) data, data_len);
                if (utf8_to_eci(eci, (const unsigned char *) data, (unsigned char *) converted, &data_len) != 0) {
                    fprintf(stderr, "i:%d testUtilBwipp: failed to convert Unicode data for %s\n", index, testUtilBarcodeName(symbology));
                    return -1;
                }
            } else {
                fprintf(stderr, "i:%d testUtilBwipp: failed to convert Unicode data for %s\n", index, testUtilBarcodeName(symbology));
                return -1;
            }
        }
        data = converted;
    } else {
        eci = symbol->eci >= 3 && ZBarcode_Cap(symbology, ZINT_CAP_ECI) ? symbol->eci : 0;
    }

    if (is_composite(symbology)) {
        if (!primary) {
            fprintf(stderr, "i:%d testUtilBwipp: no primary data given %s\n", index, testUtilBarcodeName(symbology));
            return -1;
        }
        if (*primary != '[' && !upcean) {
            strcat(bwipp_data, "(01)");
        }
        strcat(bwipp_data, primary);
        strcat(bwipp_data, "|");
        strcat(bwipp_data, data);
        testUtilBwippCvtGS1Data(bwipp_data, upcean, &addon_posn);

        if (upcean) {
            if (symbology == BARCODE_EANX_CC && (primary_len <= 8 || (addon_posn && addon_posn <= 8))) {
                bwipp_barcode = "ean8composite";
            }
            if (addon_posn) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%saddongap=%d", strlen(bwipp_opts_buf) ? " " : "", option_2 > 0 ? option_2 : upca ? 9 : 7);
                bwipp_opts = bwipp_opts_buf;
            }
            bwipp_row_height[symbol->rows - 1] = 72;
        }

        if (option_1 > 0) {
            sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sccversion=%c", strlen(bwipp_opts_buf) ? " " : "", option_1 == 1 ? 'a' : option_1 == 2 ? 'b' : 'c');
            bwipp_opts = bwipp_opts_buf;
        }
        if (option_2 > 0) {
            sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%ssegments=%d", strlen(bwipp_opts_buf) ? " " : "", option_2 * 2);
            bwipp_opts = bwipp_opts_buf;
        }
    } else {
        if (gs1_cvt) {
            if (*data != '[' && !upcean) {
                strcat(bwipp_data, symbology == BARCODE_NVE18 ? "(00)" : "(01)");
            }
            strcat(bwipp_data, data);
            testUtilBwippCvtGS1Data(bwipp_data, upcean, &addon_posn);

            if (upcean) {
                if ((symbology == BARCODE_EANX || symbology == BARCODE_EANX_CHK) && (data_len <= 8 || (addon_posn && addon_posn <= 8))) {
                    bwipp_barcode = data_len <= 3 ? "ean2" : data_len <= 5 ? "ean5" : "ean8";
                }
                if (symbology == BARCODE_ISBNX) {
                    testUtilISBNHyphenate(bwipp_data, addon_posn);
                }
                if (addon_posn) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%saddongap=%d", strlen(bwipp_opts_buf) ? " " : "", option_2 > 0 ? option_2 : upca ? 9 : 7);
                    bwipp_opts = bwipp_opts_buf;
                }
            }

            if (option_2 > 0) {
                if (symbology == BARCODE_DBAR_EXP || symbology == BARCODE_DBAR_EXPSTK) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%ssegments=%d", strlen(bwipp_opts_buf) ? " " : "", option_2 * 2);
                    bwipp_opts = bwipp_opts_buf;
                }
            }
        } else {
            if (testUtilBwippEscape(bwipp_data, sizeof(bwipp_data), data, data_len, symbol->input_mode & ESCAPE_MODE, eci, &parse, &parsefnc) == NULL) {
                return -1;
            }
            if (parse) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sparse", strlen(bwipp_opts_buf) ? " " : "");
                bwipp_opts = bwipp_opts_buf;
            }
            if (parsefnc) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sparsefnc", strlen(bwipp_opts_buf) ? " " : "");
                bwipp_opts = bwipp_opts_buf;
            }

            if (symbology == BARCODE_CODE93) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sincludecheck", strlen(bwipp_opts_buf) ? " " : "");
                if (parse) {
                    bwipp_barcode = "code93ext";
                }
                bwipp_opts = bwipp_opts_buf;
            } else if (symbology == BARCODE_PZN) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%spzn8", strlen(bwipp_opts_buf) ? " " : "");
                bwipp_opts = bwipp_opts_buf;
            } else if (symbology == BARCODE_TELEPEN_NUM) {
                if (data_len & 1) { // Add leading zero
                    memmove(bwipp_data + 1, bwipp_data, strlen(bwipp_data) + 1);
                    *bwipp_data = '0';
                }
            } else if (symbology == BARCODE_CODABLOCKF || symbology == BARCODE_HIBC_BLOCKF) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%ssepheight=0", strlen(bwipp_opts_buf) ? " " : "");
                if (option_1 > 0) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%srows=%d", strlen(bwipp_opts_buf) ? " " : "", option_1);
                }
                if (option_2 > 0) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%scolumns=%d", strlen(bwipp_opts_buf) ? " " : "", option_2 - 5);
                } else {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%scolumns=%d", strlen(bwipp_opts_buf) ? " " : "", (symbol->width - 57) / 11);
                }
                bwipp_opts = bwipp_opts_buf;
            } else if (symbology == BARCODE_CODE11 || symbology == BARCODE_CODE39 || symbology == BARCODE_EXCODE39 || symbology == BARCODE_LOGMARS || symbology == BARCODE_CODABAR) {
                if (option_2 > 0) {
                    if (option_2 == 1) {
                        sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sincludecheck", strlen(bwipp_opts_buf) ? " " : "");
                    }
                    bwipp_opts = bwipp_opts_buf; /* Set always as option_2 == 2 is bwipp default */
                }
            } else if (symbology == BARCODE_PLESSEY) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sincludecheck", strlen(bwipp_opts_buf) ? " " : "");
                bwipp_opts = bwipp_opts_buf;
            } else if (symbology == BARCODE_MSI_PLESSEY) {
                if (option_2 > 0) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sincludecheck", strlen(bwipp_opts_buf) ? " " : "");

                    const char *checktype = NULL;
                    if (option_2 == 2) {
                        checktype = "mod1010";
                    } else if (option_2 == 3) {
                        checktype = "mod11 badmod11";
                    } else if (option_2 == 4) {
                        checktype = "mod1110 badmod11";
                    }
                    if (checktype) {
                        sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%schecktype=%s", strlen(bwipp_opts_buf) ? " " : "", checktype);
                    }
                    bwipp_opts = bwipp_opts_buf;
                }
            } else if (symbology == BARCODE_PDF417 || symbology == BARCODE_PDF417COMP || symbology == BARCODE_HIBC_PDF
                    || symbology == BARCODE_MICROPDF417 || symbology == BARCODE_HIBC_MICPDF) {
                for (r = 0; r < symbol->rows; r++) bwipp_row_height[r] = 1; /* Change from 3 */
                if (option_1 >= 0) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%seclevel=%d", strlen(bwipp_opts_buf) ? " " : "", option_1);
                    bwipp_opts = bwipp_opts_buf;
                }
                if (option_2 > 0) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%scolumns=%d", strlen(bwipp_opts_buf) ? " " : "", option_2);
                    bwipp_opts = bwipp_opts_buf;
                }
            } else if (symbology == BARCODE_POSTNET || symbology == BARCODE_PLANET || symbology == BARCODE_RM4SCC || symbology == BARCODE_JAPANPOST || symbology == BARCODE_KIX
                    || symbology == BARCODE_DAFT || symbology == BARCODE_USPS_IMAIL || symbology == BARCODE_AUSPOST || symbology == BARCODE_PHARMA_TWO) {
                for (r = 0; r < symbol->rows; r++) bwipp_row_height[r] = 1; /* Zap */
                if (symbology == BARCODE_KIX) {
                    to_upper((unsigned char *) bwipp_data);
                } else if (symbology == BARCODE_USPS_IMAIL) {
                    char *dash = strchr(bwipp_data, '-');
                    if (dash) {
                        memmove(dash, dash + 1, strlen(dash));
                    }
                } else if (symbology == BARCODE_AUSPOST) {
                    const char *prefix;
                    if (data_len == 8) {
                        prefix = "11";
                    } else if (data_len == 13 || data_len == 16) {
                        prefix = "59";
                        if (data_len == 16) {
                            sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%scustinfoenc=numeric", strlen(bwipp_opts_buf) ? " " : "");
                            bwipp_opts = bwipp_opts_buf;
                        }
                    } else {
                        prefix = "62";
                        if (data_len == 23) {
                            sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%scustinfoenc=numeric", strlen(bwipp_opts_buf) ? " " : "");
                            bwipp_opts = bwipp_opts_buf;
                        }
                    }
                    memmove(bwipp_data + 2, bwipp_data, data_len + 1);
                    memmove(bwipp_data, prefix, 2);
                }
            } else if (symbology == BARCODE_FIM) {
                strcpy(bwipp_data, "fima");
                bwipp_data[3] = data[0] - 'A' + 'a';
            } else if (symbology == BARCODE_CODE16K || symbology == BARCODE_CODE49) {
                for (r = 0; r < symbol->rows; r++) bwipp_row_height[r] = 8; /* Change from 10 */
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%ssepheight=0", strlen(bwipp_opts_buf) ? " " : "");
                bwipp_opts = bwipp_opts_buf;
            } else if (symbology == BARCODE_AZTEC || symbology == BARCODE_HIBC_AZTEC) {
                int compact = 0;
                if (option_1 >= 1 && option_1 <= 4) {
                    int eclevel;
                    if (option_1 == 1) {
                        eclevel = 10;
                    } else if (option_1 == 2) {
                        eclevel = 23;
                    } else if (option_1 == 3) {
                        eclevel = 36;
                    } else {
                        eclevel = 50;
                    }
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%seclevel=%d", strlen(bwipp_opts_buf) ? " " : "", eclevel);
                    bwipp_opts = bwipp_opts_buf;
                }
                if (option_2 >= 1) {
                    int layers;
                    if (option_2 <= 4) {
                        compact = 1;
                        layers = option_2;
                    } else {
                        layers = option_2 - 4;
                    }
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%slayers=%d", strlen(bwipp_opts_buf) ? " " : "", layers);
                    bwipp_opts = bwipp_opts_buf;
                }
                if (symbol->output_options & READER_INIT) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sreaderinit", strlen(bwipp_opts_buf) ? " " : "");
                    bwipp_opts = bwipp_opts_buf;
                }
                if (symbology == BARCODE_HIBC_AZTEC) {
                    compact = 1;
                }
                if (compact) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sformat=compact", strlen(bwipp_opts_buf) ? " " : "");
                    bwipp_opts = bwipp_opts_buf;
                }
            } else if (symbology == BARCODE_CODEONE) {
                if ((symbol->input_mode & 0x07) == GS1_MODE) { /* Hack pseudo-GS1 support */
                    int last_ai, ai_latch = 0;
                    for (int i = 0, j = 0, len = (int) strlen(bwipp_data); i <= len; i++) { /* Reduce square brackets (include NUL) */
                        if (bwipp_data[i] == '[') {
                            if (ai_latch == 0) {
                                bwipp_data[j++] = '[';
                            }
                            last_ai = atoi(bwipp_data + i + 1);
                            if ((last_ai >= 0 && last_ai <= 4) || (last_ai >= 11 && last_ai <= 20) || last_ai == 23 || (last_ai >= 31 && last_ai <= 36) || last_ai == 41) {
                                ai_latch = 1;
                            }
                        } else if (bwipp_data[i] != ']') {
                            bwipp_data[j++] = bwipp_data[i];
                        }
                    }
                    for (int len = (int) strlen(bwipp_data), i = len - 1; i >= 0; i--) { /* Replace square brackets with ^FNC1 */
                        if (bwipp_data[i] == '[') {
                            memmove(bwipp_data + i + 5, bwipp_data + i + 1, len - i);
                            memcpy(bwipp_data + i, "^FNC1", 5);
                            len += 4;
                        }
                    }
                    if (symbol->eci == 0) { /* If not already done for ECI */
                        sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sparsefnc", strlen(bwipp_opts_buf) ? " " : "");
                        bwipp_opts = bwipp_opts_buf;
                    }
                }
                if (option_2 >= 1 && option_2 <= 10) {
                    static const char *codeone_versions[] = { "A", "B", "C", "D", "E", "F", "G", "H" };
                    const char *codeone_version;
                    if (option_2 == 9) {
                        codeone_version = length <= 6 ? "S-10" : length <= 12 ? "S-20" : "S-30";
                    } else if (option_2 == 10) {
                        codeone_version = length <= 22 ? "T-16" : length <= 34 ? "T-32" : "T-48"; // TODO: Properly allow for different T sizes
                    } else {
                        codeone_version = codeone_versions[option_2 - 1];
                    }
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sversion=%s", strlen(bwipp_opts_buf) ? " " : "", codeone_version);
                    bwipp_opts = bwipp_opts_buf;
                }
            }
        }

        if (symbology == BARCODE_DATAMATRIX || symbology == BARCODE_HIBC_DM) {
            int added_dmre = 0;
            #include "../dmatrix.h"
            (void)matrixrsblock; (void)matrixdatablock; (void)matrixbytes; (void)matrixFW; (void)matrixFH;
            (void)isDMRE; (void)text_value; (void)text_shift; (void)c40_value; (void)c40_shift;

            if (symbol->output_options & GS1_GS_SEPARATOR) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sgssep", strlen(bwipp_opts_buf) ? " " : "");
                bwipp_opts = bwipp_opts_buf;
            }
            if (option_2 >= 1 && option_2 <= (int) sizeof(intsymbol)) {
                int idx = intsymbol[option_2 - 1];
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%srows=%d columns=%d", strlen(bwipp_opts_buf) ? " " : "", matrixH[idx], matrixW[idx]);
                bwipp_opts = bwipp_opts_buf;
                if (option_2 >= 31) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sdmre", strlen(bwipp_opts_buf) ? " " : "");
                    added_dmre = 1;
                }
            }
            if (option_3 != DM_SQUARE && symbol->width != symbol->height) {
                if (option_3 == DM_DMRE && !added_dmre) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sdmre", strlen(bwipp_opts_buf) ? " " : "");
                    added_dmre = 1;
                }
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%sformat=rectangle", strlen(bwipp_opts_buf) ? " " : "");
                bwipp_opts = bwipp_opts_buf;
            }
            if (option_3 != -1) {
                bwipp_opts = bwipp_opts_buf;
            }
        } else if (symbology == BARCODE_DOTCODE) {
            if (option_2 > 0) {
                sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%scolumns=%d", strlen(bwipp_opts_buf) ? " " : "", symbol->option_2);
                bwipp_opts = bwipp_opts_buf;
            }
            if (option_3 != -1) {
                user_mask = (option_3 >> 8) & 0x0F; /* User mask is pattern + 1, so >= 1 and <= 8 */
                if (user_mask >= 1 && user_mask <= 8) {
                    sprintf(bwipp_opts_buf + (int) strlen(bwipp_opts_buf), "%smask=%d", strlen(bwipp_opts_buf) ? " " : "", (user_mask - 1) % 4);
                    bwipp_opts = bwipp_opts_buf;
                }
            }
        }
    }

    if ((option_1 != -1 || option_2 != -1 || option_3 != -1) && !bwipp_opts) {
        fprintf(stderr, "i:%d testUtilBwipp: no BWIPP options set option_1 %d, option_2 %d, option_3 %d for symbology %s\n", index, option_1, option_2, option_3, testUtilBarcodeName(symbology));
        return -1;
    }

    if (bwipp_opts && strlen(bwipp_opts)) {
        if (strlen(bwipp_data) >= 2043) { /* Ghostscript's `arg_str_max` 2048 less "-sd=" */
            sprintf(cmd, cmd_opts_fmt2, bwipp_barcode, bwipp_data, bwipp_data + 2043, bwipp_opts);
        } else {
            sprintf(cmd, cmd_opts_fmt, bwipp_barcode, bwipp_data, bwipp_opts);
        }
    } else {
        if (strlen(bwipp_data) >= 2043) {
            sprintf(cmd, cmd_fmt2, bwipp_barcode, bwipp_data, bwipp_data + 2043);
        } else {
            sprintf(cmd, cmd_fmt, bwipp_barcode, bwipp_data);
        }
    }

    /* Hack in various adjustments */
    if (symbology == BARCODE_DBAR_OMN || symbology == BARCODE_DBAR_LTD || symbology == BARCODE_DBAR_EXP) {
        /* Begin with space */
        char adj[5] = " -sbs";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_CODE11 || symbology == BARCODE_CODE39 || symbology == BARCODE_EXCODE39 || symbology == BARCODE_CODABAR
            || symbology == BARCODE_PHARMA || symbology == BARCODE_PZN || symbology == BARCODE_CODE32 || symbology == BARCODE_VIN) {
        /* Ratio 3 width bar/space -> 2 width */
        char adj[8] = " -sr=0.6";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_C25INTER || symbology == BARCODE_DPLEIT || symbology == BARCODE_DPIDENT || symbology == BARCODE_ITF14) {
        /* Ratio 2 width bar/space -> 3 width */
        char adj[8] = " -sr=1.3";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_FIM) {
        /* Ratio 2 width bar/space -> 1 width */
        char adj[8] = " -sr=0.5";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_PLESSEY) {
        /* Ceiling ratio 3/4/5 width bar/space -> 2 width then round ratio 2 width bar/space -> 3 width */
        char adj[16] = " -sc=0.4 -sr=1.3";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_CODE11 || symbology == BARCODE_CODE39 || symbology == BARCODE_EXCODE39 || symbology == BARCODE_HIBC_39
            || symbology == BARCODE_LOGMARS || symbology == BARCODE_PHARMA || symbology == BARCODE_PZN || symbology == BARCODE_CODE32 || symbology == BARCODE_VIN
            || symbology == BARCODE_C25INTER || symbology == BARCODE_DPLEIT || symbology == BARCODE_DPIDENT || symbology == BARCODE_ITF14
            || symbology == BARCODE_PHARMA_TWO) {
        /* End sbs loop on bar */
        char adj[6] = " -selb";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_C25STANDARD) {
        /* Zint uses 4X start/stop wides while BWIPP uses 3X - convert */
        char adj[91] = " -sp='i 0 eq i limit 4 sub eq or sbs i get 3 eq and { (1111) print true } { false } ifelse'";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_POSTNET || symbology == BARCODE_PLANET || symbology == BARCODE_RM4SCC || symbology == BARCODE_JAPANPOST || symbology == BARCODE_KIX
            || symbology == BARCODE_DAFT || symbology == BARCODE_USPS_IMAIL || symbology == BARCODE_AUSPOST || symbology == BARCODE_PHARMA_TWO) {
        /* Emulate rows with BWIPP heights. */
        char adj[5] = " -shs";
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }
    if (symbology == BARCODE_CODE16K || symbology == BARCODE_CODE49) {
        char adj[15] = " -sxs=10 -sxe=1"; /* Strip first 10 and last zero */
        memmove(cmd + GS_INITIAL_LEN + sizeof(adj), cmd + GS_INITIAL_LEN, strlen(cmd) + 1 - GS_INITIAL_LEN);
        memcpy(cmd + GS_INITIAL_LEN, adj, sizeof(adj));
    }

    if (symbol->debug & ZINT_DEBUG_TEST_PRINT) {
        printf("i:%d testUtilBwipp: cmd %s\n", index, cmd);
    }

    fp = popen(cmd, "r");
    if (!fp) {
        fprintf(stderr, "i:%d testUtilBwipp: failed to run '%s'\n", index, cmd);
        return -1;
    }

    for (r = 0; r < symbol->rows; r++) {
        if (b + symbol->width > be) {
            fprintf(stderr, "i:%d testUtilBwipp: row %d, width %d, row width iteration overrun (%s)\n", index, r, symbol->width, cmd);
            pclose(fp);
            return -1;
        }
        cnt = fread(b, 1, symbol->width, fp);
        if (cnt != symbol->width) {
            fprintf(stderr, "i:%d testUtilBwipp: failed to read symbol->width %d bytes, cnt %d (%s)\n", index, symbol->width, cnt, cmd);
            pclose(fp);
            return -1;
        }
        b += cnt;
        for (h = bwipp_row_height[r]; h > 1; h--) { /* Ignore row copies if any */
            cnt = fread(b, 1, symbol->width, fp);
            if (cnt != symbol->width) {
                fprintf(stderr, "i:%d testUtilBwipp: failed to read/ignore symbol->width %d bytes, cnt %d, h %d, bwipp_row_height[%d] %d, symbol->row_height[%d] %d (%s)\n",
                        index, symbol->width, cnt, h, r, bwipp_row_height[r], r, symbol->row_height[r], cmd);
                pclose(fp);
                return -1;
            }
        }
    }
    *b = '\0';

    if (fgetc(fp) != EOF) {
        fprintf(stderr, "i:%d testUtilBwipp: failed to read full stream (%s)\n", index, cmd);
        pclose(fp);
        return -1;
    }

    pclose(fp);

    return 0;
}

int testUtilBwippCmp(const struct zint_symbol *symbol, char *msg, const char *bwipp_buf, const char *expected) {
    int bwipp_len = strlen(bwipp_buf);
    int expected_len = strlen(expected);
    int ret_memcmp;
    int i;

    (void)symbol;

    if (bwipp_len != expected_len) {
        sprintf(msg, "bwipp_len %d != expected_len %d", bwipp_len, expected_len);
        return 2;
    }

    ret_memcmp = memcmp(bwipp_buf, expected, expected_len);
    if (ret_memcmp != 0) {
        for (i = 0; i < expected_len; i++) {
            if (bwipp_buf[i] != expected[i]) {
                break;
            }
        }
        sprintf(msg, "bwipp memcmp %d != 0, at %d, len %d", ret_memcmp, i, expected_len);
        return ret_memcmp;
    }

    return 0;
}

int testUtilBwippCmpRow(const struct zint_symbol *symbol, int row, char *msg, const char *bwipp_buf, const char *expected) {
    int bwipp_len = strlen(bwipp_buf);
    int expected_len = strlen(expected);
    int ret_memcmp;
    int i, j;

    (void)symbol;

    if (bwipp_len != expected_len * symbol->rows) {
        sprintf(msg, "bwipp_len %d != expected_len %d * symbol->rows %d", bwipp_len, expected_len, symbol->rows);
        return 2;
    }

    ret_memcmp = memcmp(bwipp_buf + expected_len * row, expected, expected_len);
    if (ret_memcmp != 0) {
        for (i = 0, j = expected_len * row; i < expected_len; i++, j++) {
            if (bwipp_buf[j] != expected[i]) {
                break;
            }
        }
        sprintf(msg, "bwipp memcmp %d != 0, at %d (%d), len %d", ret_memcmp, i, j, expected_len);
        return ret_memcmp;
    }

    return 0;
}