/* code1.c - USS Code One */

/*
    libzint - the open source barcode library
    Copyright (C) 2009-2020 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 : */

#include "common.h"
#include "code1.h"
#include "reedsol.h"
#include "large.h"
#include <stdio.h>
#include <math.h>

static void horiz(struct zint_symbol *symbol, int row_no, int full) {
    int i;

    if (full) {
        for (i = 0; i < symbol->width; i++) {
            set_module(symbol, row_no, i);
        }
    } else {
        for (i = 1; i < symbol->width - 1; i++) {
            set_module(symbol, row_no, i);
        }
    }
}

static void central_finder(struct zint_symbol *symbol, int start_row, int row_count, int full_rows) {
    int i;

    for (i = 0; i < row_count; i++) {
        if (i < full_rows) {
            horiz(symbol, start_row + (i * 2), 1);
        } else {
            horiz(symbol, start_row + (i * 2), 0);
            if (i != row_count - 1) {
                set_module(symbol, start_row + (i * 2) + 1, 1);
                set_module(symbol, start_row + (i * 2) + 1, symbol->width - 2);
            }
        }
    }
}

static void vert(struct zint_symbol *symbol, int column, int height, int top) {
    int i;

    if (top) {
        for (i = 0; i < height; i++) {
            set_module(symbol, i, column);
        }
    } else {
        for (i = 0; i < height; i++) {
            set_module(symbol, symbol->rows - i - 1, column);
        }
    }
}

static void spigot(struct zint_symbol *symbol, int row_no) {
    int i;

    for (i = symbol->width - 1; i > 0; i--) {
        if (module_is_set(symbol, row_no, i - 1)) {
            set_module(symbol, row_no, i);
        }
    }
}

static int isedi(unsigned char input) {
    int result = 0;

    if (input == 13) {
        result = 1;
    }
    if (input == '*') {
        result = 1;
    }
    if (input == '>') {
        result = 1;
    }
    if (input == ' ') {
        result = 1;
    }
    if ((input >= '0') && (input <= '9')) {
        result = 1;
    }
    if ((input >= 'A') && (input <= 'Z')) {
        result = 1;
    }

    return result;
}

static int dq4bi(unsigned char source[], int sourcelen, int position) {
    int i;

    for (i = 0; ((position + i) < sourcelen) && isedi(source[position + i]); i++);

    if ((position + i) == sourcelen) {
        /* Reached end of input */
        return 0;
    }
    if (i == 0) {
        /* Not EDI */
        return 0;
    }

    if (source[position + i - 1] == 13) {
        return 1;
    }
    if (source[position + i - 1] == '*') {
        return 1;
    }
    if (source[position + i - 1] == '>') {
        return 1;
    }

    return 0;
}

static int c1_look_ahead_test(unsigned char source[], int sourcelen, int position, int current_mode, int gs1) {
    float ascii_count, c40_count, text_count, edi_count, byte_count;
    char reduced_char;
    int done, best_scheme, sp;

    /* Step J */
    if (current_mode == C1_ASCII) {
        ascii_count = 0.0;
        c40_count = 1.0;
        text_count = 1.0;
        edi_count = 1.0;
        byte_count = 2.0;
    } else {
        ascii_count = 1.0;
        c40_count = 2.0;
        text_count = 2.0;
        edi_count = 2.0;
        byte_count = 3.0;
    }

    switch (current_mode) {
        case C1_C40: c40_count = 0.0;
            break;
        case C1_TEXT: text_count = 0.0;
            break;
        case C1_BYTE: byte_count = 0.0;
            break;
        case C1_EDI: edi_count = 0.0;
            break;
    }

    for (sp = position; (sp < sourcelen) && (sp <= (position + 8)); sp++) {

        if (source[sp] <= 127) {
            reduced_char = source[sp];
        } else {
            reduced_char = source[sp] - 127;
        }

        /* Step L */
        if ((source[sp] >= '0') && (source[sp] <= '9')) {
            ascii_count += 0.5;
        } else {
            ascii_count = ceil(ascii_count);
            if (source[sp] > 127) {
                ascii_count += 2.0;
            } else {
                ascii_count += 1.0;
            }
        }

        /* Step M */
        done = 0;
        if (reduced_char == ' ') {
            c40_count += (2.0 / 3.0);
            done = 1;
        }
        if ((reduced_char >= '0') && (reduced_char <= '9')) {
            c40_count += (2.0 / 3.0);
            done = 1;
        }
        if ((reduced_char >= 'A') && (reduced_char <= 'Z')) {
            c40_count += (2.0 / 3.0);
            done = 1;
        }
        if (source[sp] > 127) {
            c40_count += (4.0 / 3.0);
        }
        if (done == 0) {
            c40_count += (4.0 / 3.0);
        }

        /* Step N */
        done = 0;
        if (reduced_char == ' ') {
            text_count += (2.0 / 3.0);
            done = 1;
        }
        if ((reduced_char >= '0') && (reduced_char <= '9')) {
            text_count += (2.0 / 3.0);
            done = 1;
        }
        if ((reduced_char >= 'a') && (reduced_char <= 'z')) {
            text_count += (2.0 / 3.0);
            done = 1;
        }
        if (source[sp] > 127) {
            text_count += (4.0 / 3.0);
        }
        if (done == 0) {
            text_count += (4.0 / 3.0);
        }

        /* Step O */
        done = 0;
        if (source[sp] == 13) {
            edi_count += (2.0 / 3.0);
            done = 1;
        }
        if (source[sp] == '*') {
            edi_count += (2.0 / 3.0);
            done = 1;
        }
        if (source[sp] == '>') {
            edi_count += (2.0 / 3.0);
            done = 1;
        }
        if (source[sp] == ' ') {
            edi_count += (2.0 / 3.0);
            done = 1;
        }
        if ((source[sp] >= '0') && (source[sp] <= '9')) {
            edi_count += (2.0 / 3.0);
            done = 1;
        }
        if ((source[sp] >= 'A') && (source[sp] <= 'Z')) {
            edi_count += (2.0 / 3.0);
            done = 1;
        }
        if (source[sp] > 127) {
            edi_count += (13.0 / 3.0);
        } else {
            if (done == 0) {
                edi_count += (10.0 / 3.0);
            }
        }

        /* Step P */
        if (gs1 && (source[sp] == '[')) {
            byte_count += 3.0;
        } else {
            byte_count += 1.0;
        }

    }

    ascii_count = ceil(ascii_count);
    c40_count = ceil(c40_count);
    text_count = ceil(text_count);
    edi_count = ceil(edi_count);
    byte_count = ceil(byte_count);
    best_scheme = C1_ASCII;

    if (sp == sourcelen) {
        /* Step K */
        int best_count = (int) edi_count;

        if (text_count <= best_count) {
            best_count = (int) text_count;
            best_scheme = C1_TEXT;
        }

        if (c40_count <= best_count) {
            best_count = (int) c40_count;
            best_scheme = C1_C40;
        }

        if (ascii_count <= best_count) {
            best_count = (int) ascii_count;
            best_scheme = C1_ASCII;
        }

        if (byte_count <= best_count) {
            //            best_count = (int) byte_count;
            best_scheme = C1_BYTE;
        }
    } else {
        /* Step Q */

        if (((edi_count + 1.0 <= ascii_count) && (edi_count + 1.0 <= c40_count)) &&
                ((edi_count + 1.0 <= byte_count) && (edi_count + 1.0 <= text_count))) {
            best_scheme = C1_EDI;
        }

        if ((c40_count + 1.0 <= ascii_count) && (c40_count + 1.0 <= text_count)) {

            if (c40_count < edi_count) {
                best_scheme = C1_C40;
            } else {
                if (c40_count == edi_count) {
                    if (dq4bi(source, sourcelen, position)) {
                        best_scheme = C1_EDI;
                    } else {
                        best_scheme = C1_C40;
                    }
                }
            }
        }

        if (((text_count + 1.0 <= ascii_count) && (text_count + 1.0 <= c40_count)) &&
                ((text_count + 1.0 <= byte_count) && (text_count + 1.0 <= edi_count))) {
            best_scheme = C1_TEXT;
        }

        if (((ascii_count + 1.0 <= byte_count) && (ascii_count + 1.0 <= c40_count)) &&
                ((ascii_count + 1.0 <= text_count) && (ascii_count + 1.0 <= edi_count))) {
            best_scheme = C1_ASCII;
        }

        if (((byte_count + 1.0 <= ascii_count) && (byte_count + 1.0 <= c40_count)) &&
                ((byte_count + 1.0 <= text_count) && (byte_count + 1.0 <= edi_count))) {
            best_scheme = C1_BYTE;
        }
    }

    return best_scheme;
}

static int c1_encode(struct zint_symbol *symbol, unsigned char source[], unsigned int target[], int length) {
    int current_mode, next_mode;
    int sp, tp, gs1, i, j, p, latch;
    int c40_buffer[6], c40_p;
    int text_buffer[6], text_p;
    int edi_buffer[6], edi_p;
    char decimal_binary[40];
    int byte_start = 0;

    sp = 0;
    tp = 0;
    memset(c40_buffer, 0, sizeof(*c40_buffer));
    c40_p = 0;
    memset(text_buffer, 0, sizeof(*text_buffer));
    text_p = 0;
    memset(edi_buffer, 0, sizeof(*edi_buffer));
    edi_p = 0;
    strcpy(decimal_binary, "");

    if ((symbol->input_mode & 0x07) == GS1_MODE) {
        gs1 = 1;
    } else {
        gs1 = 0;
    }
    if (gs1) {
        /* FNC1 */
        target[tp] = 232;
        tp++;
    }

    /* Step A */
    current_mode = C1_ASCII;
    next_mode = C1_ASCII;

    do {
        if (current_mode != next_mode) {
            /* Change mode */
            switch (next_mode) {
                case C1_C40: target[tp] = 230;
                    tp++;
                    break;
                case C1_TEXT: target[tp] = 239;
                    tp++;
                    break;
                case C1_EDI: target[tp] = 238;
                    tp++;
                    break;
                case C1_BYTE: target[tp] = 231;
                    tp++;
                    break;
            }
        }

        if ((current_mode != C1_BYTE) && (next_mode == C1_BYTE)) {
            byte_start = tp;
        }
        current_mode = next_mode;

        if (current_mode == C1_ASCII) {
            /* Step B - ASCII encodation */
            next_mode = C1_ASCII;

            if ((length - sp) >= 21) {
                /* Step B1 */
                j = 0;

                for (i = 0; i < 21; i++) {
                    if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                        j++;
                    }
                }

                if (j == 21) {
                    next_mode = C1_DECIMAL;
                    bin_append(15, 4, decimal_binary);
                }
            }

            if ((next_mode == C1_ASCII) && ((length - sp) >= 13)) {
                /* Step B2 */
                j = 0;

                for (i = 0; i < 13; i++) {
                    if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                        j++;
                    }
                }

                if (j == 13) {
                    latch = 0;
                    for (i = sp + 13; i < length; i++) {
                        if (!((source[i] >= '0') && (source[i] <= '9'))) {
                            latch = 1;
                        }
                    }

                    if (!(latch)) {
                        next_mode = C1_DECIMAL;
                        bin_append(15, 4, decimal_binary);
                    }
                }
            }

            if (next_mode == C1_ASCII) { /* Step B3 */
                if (istwodigits(source, length, sp)) {
                    target[tp] = (10 * ctoi(source[sp])) + ctoi(source[sp + 1]) + 130;
                    tp++;
                    sp += 2;
                } else {
                    if ((gs1) && (source[sp] == '[')) {
                        if ((length - sp) >= 15) {
                            /* Step B4 */
                            j = 0;

                            for (i = 0; i < 15; i++) {
                                if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                                    j++;
                                }
                            }

                            if (j == 15) {
                                target[tp] = 236; /* FNC1 and change to Decimal */
                                tp++;
                                sp++;
                                next_mode = C1_DECIMAL;
                            }
                        }

                        if ((length - sp) >= 7) { /* Step B5 */
                            j = 0;

                            for (i = 0; i < 7; i++) {
                                if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                                    j++;
                                }
                            }

                            if (j == 7) {
                                latch = 0;
                                for (i = sp + 7; i < length; i++) {
                                    if (!((source[i] >= '0') && (source[i] <= '9'))) {
                                        latch = 1;
                                    }
                                }

                                if (!(latch)) {
                                    target[tp] = 236; /* FNC1 and change to Decimal */
                                    tp++;
                                    sp++;
                                    next_mode = C1_DECIMAL;
                                }
                            }
                        }
                    }

                    if (next_mode == C1_ASCII) {

                        /* Step B6 */
                        next_mode = c1_look_ahead_test(source, length, sp, current_mode, gs1);

                        if (next_mode == C1_ASCII) {
                            if (source[sp] > 127) {
                                /* Step B7 */
                                target[tp] = 235; /* FNC4 */
                                tp++;
                                target[tp] = (source[sp] - 128) + 1;
                                tp++;
                                sp++;
                            } else {
                                /* Step B8 */
                                if ((gs1) && (source[sp] == '[')) {
                                    target[tp] = 232; /* FNC1 */
                                    tp++;
                                    sp++;
                                } else {
                                    target[tp] = source[sp] + 1;
                                    tp++;
                                    sp++;
                                }
                            }
                        }
                    }
                }
            }
        }

        if (current_mode == C1_C40) {
            /* Step C - C40 encodation */

            next_mode = C1_C40;
            if (c40_p == 0) {
                int done = 0;
                if ((length - sp) >= 12) {
                    j = 0;

                    for (i = 0; i < 12; i++) {
                        if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                            j++;
                        }
                    }

                    if (j == 12) {
                        next_mode = C1_ASCII;
                        done = 1;
                    }
                }

                if ((length - sp) >= 8) {
                    int latch = 0;
                    j = 0;

                    for (i = 0; i < 8; i++) {
                        if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                            j++;
                        }
                    }

                    if ((length - sp) == 8) {
                        latch = 1;
                    } else {
                        latch = 1;
                        for (j = sp + 8; j < length; j++) {
                            if ((source[j] <= '0') || (source[j] >= '9')) {
                                latch = 0;
                            }
                        }
                    }

                    if ((j == 8) && latch) {
                        next_mode = C1_ASCII;
                        done = 1;
                    }
                }

                if (!(done)) {
                    next_mode = c1_look_ahead_test(source, length, sp, current_mode, gs1);
                }
            }

            if (next_mode != C1_C40) {
                target[tp] = 255; /* Unlatch */
                tp++;
            } else {
                int shift_set, value;
                if (source[sp] > 127) {
                    c40_buffer[c40_p] = 1;
                    c40_p++;
                    c40_buffer[c40_p] = 30; /* Upper Shift */
                    c40_p++;
                    shift_set = c40_shift[source[sp] - 128];
                    value = c40_value[source[sp] - 128];
                } else {
                    shift_set = c40_shift[source[sp]];
                    value = c40_value[source[sp]];
                }

                if (gs1 && (source[sp] == '[')) {
                    shift_set = 2;
                    value = 27; /* FNC1 */
                }

                if (shift_set != 0) {
                    c40_buffer[c40_p] = shift_set - 1;
                    c40_p++;
                }
                c40_buffer[c40_p] = value;
                c40_p++;

                if (c40_p >= 3) {
                    int iv;

                    iv = (1600 * c40_buffer[0]) + (40 * c40_buffer[1]) + (c40_buffer[2]) + 1;
                    target[tp] = iv / 256;
                    tp++;
                    target[tp] = iv % 256;
                    tp++;

                    c40_buffer[0] = c40_buffer[3];
                    c40_buffer[1] = c40_buffer[4];
                    c40_buffer[2] = c40_buffer[5];
                    c40_buffer[3] = 0;
                    c40_buffer[4] = 0;
                    c40_buffer[5] = 0;
                    c40_p -= 3;
                }
                sp++;
            }
        }

        if (current_mode == C1_TEXT) {
            /* Step D - Text encodation */

            next_mode = C1_TEXT;
            if (text_p == 0) {
                int done = 0;
                if ((length - sp) >= 12) {
                    j = 0;

                    for (i = 0; i < 12; i++) {
                        if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                            j++;
                        }
                    }

                    if (j == 12) {
                        next_mode = C1_ASCII;
                        done = 1;
                    }
                }

                if ((length - sp) >= 8) {
                    int latch = 0;
                    j = 0;

                    for (i = 0; i < 8; i++) {
                        if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                            j++;
                        }
                    }

                    if ((length - sp) == 8) {
                        latch = 1;
                    } else {
                        latch = 1;
                        for (j = sp + 8; j < length; j++) {
                            if ((source[j] <= '0') || (source[j] >= '9')) {
                                latch = 0;
                            }
                        }
                    }

                    if ((j == 8) && latch) {
                        next_mode = C1_ASCII;
                        done = 1;
                    }
                }

                if (!(done)) {
                    next_mode = c1_look_ahead_test(source, length, sp, current_mode, gs1);
                }
            }

            if (next_mode != C1_TEXT) {
                target[tp] = 255;
                tp++; /* Unlatch */
            } else {
                int shift_set, value;
                if (source[sp] > 127) {
                    text_buffer[text_p] = 1;
                    text_p++;
                    text_buffer[text_p] = 30;
                    text_p++; /* Upper Shift */
                    shift_set = text_shift[source[sp] - 128];
                    value = text_value[source[sp] - 128];
                } else {
                    shift_set = text_shift[source[sp]];
                    value = text_value[source[sp]];
                }

                if (gs1 && (source[sp] == '[')) {
                    shift_set = 2;
                    value = 27; /* FNC1 */
                }

                if (shift_set != 0) {
                    text_buffer[text_p] = shift_set - 1;
                    text_p++;
                }
                text_buffer[text_p] = value;
                text_p++;

                if (text_p >= 3) {
                    int iv;

                    iv = (1600 * text_buffer[0]) + (40 * text_buffer[1]) + (text_buffer[2]) + 1;
                    target[tp] = iv / 256;
                    tp++;
                    target[tp] = iv % 256;
                    tp++;

                    text_buffer[0] = text_buffer[3];
                    text_buffer[1] = text_buffer[4];
                    text_buffer[2] = text_buffer[5];
                    text_buffer[3] = 0;
                    text_buffer[4] = 0;
                    text_buffer[5] = 0;
                    text_p -= 3;
                }
                sp++;
            }
        }

        if (current_mode == C1_EDI) {
            /* Step E - EDI Encodation */

            next_mode = C1_EDI;
            if (edi_p == 0) {
                if ((length - sp) >= 12) {
                    j = 0;

                    for (i = 0; i < 12; i++) {
                        if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                            j++;
                        }
                    }

                    if (j == 12) {
                        next_mode = C1_ASCII;
                    }
                }

                if ((length - sp) >= 8) {
                    int latch = 0;
                    j = 0;

                    for (i = 0; i < 8; i++) {
                        if ((source[sp + i] >= '0') && (source[sp + i] <= '9')) {
                            j++;
                        }
                    }

                    if ((length - sp) == 8) {
                        latch = 1;
                    } else {
                        latch = 1;
                        for (j = sp + 8; j < length; j++) {
                            if ((source[j] <= '0') || (source[j] >= '9')) {
                                latch = 0;
                            }
                        }
                    }

                    if ((j == 8) && latch) {
                        next_mode = C1_ASCII;
                    }
                }

                if (!((isedi(source[sp]) && isedi(source[sp + 1])) && isedi(source[sp + 2]))) {
                    next_mode = C1_ASCII;
                }
            }

            if (next_mode != C1_EDI) {
                target[tp] = 255; /* Unlatch */
                tp++;
            } else {
                int value = 0;
                if (source[sp] == 13) {
                    value = 0;
                }
                if (source[sp] == '*') {
                    value = 1;
                }
                if (source[sp] == '>') {
                    value = 2;
                }
                if (source[sp] == ' ') {
                    value = 3;
                }
                if ((source[sp] >= '0') && (source[sp] <= '9')) {
                    value = source[sp] - '0' + 4;
                }
                if ((source[sp] >= 'A') && (source[sp] <= 'Z')) {
                    value = source[sp] - 'A' + 14;
                }

                edi_buffer[edi_p] = value;
                edi_p++;

                if (edi_p >= 3) {
                    int iv;

                    iv = (1600 * edi_buffer[0]) + (40 * edi_buffer[1]) + (edi_buffer[2]) + 1;
                    target[tp] = iv / 256;
                    tp++;
                    target[tp] = iv % 256;
                    tp++;

                    edi_buffer[0] = edi_buffer[3];
                    edi_buffer[1] = edi_buffer[4];
                    edi_buffer[2] = edi_buffer[5];
                    edi_buffer[3] = 0;
                    edi_buffer[4] = 0;
                    edi_buffer[5] = 0;
                    edi_p -= 3;
                }
                sp++;
            }
        }

        if (current_mode == C1_DECIMAL) {
            /* Step F - Decimal encodation */
            int decimal_count, data_left;

            next_mode = C1_DECIMAL;

            data_left = length - sp;
            decimal_count = 0;

            if (data_left >= 1) {
                if ((source[sp] >= '0') && (source[sp] <= '9')) {
                    decimal_count = 1;
                }
            }
            if (data_left >= 2) {
                if ((decimal_count == 1) && ((source[sp + 1] >= '0') && (source[sp + 1] <= '9'))) {
                    decimal_count = 2;
                }
            }
            if (data_left >= 3) {
                if ((decimal_count == 2) && ((source[sp + 2] >= '0') && (source[sp + 2] <= '9'))) {
                    decimal_count = 3;
                }
            }

            if (decimal_count != 3) {
                size_t bits_left_in_byte, target_count;
                int sub_target;
                /* Finish Decimal mode and go back to ASCII */

                bin_append(63, 6, decimal_binary); /* Unlatch */

                target_count = 3;
                if (strlen(decimal_binary) <= 16) {
                    target_count = 2;
                }
                if (strlen(decimal_binary) <= 8) {
                    target_count = 1;
                }
                bits_left_in_byte = (8 * target_count) - strlen(decimal_binary);
                if (bits_left_in_byte == 8) {
                    bits_left_in_byte = 0;
                }

                if (bits_left_in_byte == 2) {
                    bin_append(1, 2, decimal_binary);
                }

                if ((bits_left_in_byte == 4) || (bits_left_in_byte == 6)) {
                    if (decimal_count >= 1) {
                        bin_append(ctoi(source[sp]) + 1, 4, decimal_binary);
                        sp++;
                    } else {
                        bin_append(15, 4, decimal_binary);
                    }
                }

                if (bits_left_in_byte == 6) {
                    bin_append(1, 2, decimal_binary);
                }

                /* Binary buffer is full - transfer to target */
                if (target_count >= 1) {
                    sub_target = 0;

                    for (i = 0; i < 8; i++) {
                        if (decimal_binary[i] == '1') {
                            sub_target += 128 >> i;
                        }
                    }
                    target[tp] = sub_target;
                    tp++;
                }
                if (target_count >= 2) {
                    sub_target = 0;

                    for (i = 0; i < 8; i++) {
                        if (decimal_binary[i + 8] == '1') {
                            sub_target += 128 >> i;
                        }
                    }
                    target[tp] = sub_target;
                    tp++;
                }
                if (target_count == 3) {
                    sub_target = 0;

                    for (i = 0; i < 8; i++) {
                        if (decimal_binary[i + 16] == '1') {
                            sub_target += 128 >> i;
                        }
                    }
                    target[tp] = sub_target;
                    tp++;
                }

                next_mode = C1_ASCII;
            } else {
                /* There are three digits - convert the value to binary */
                bin_append((100 * ctoi(source[sp])) + (10 * ctoi(source[sp + 1])) + ctoi(source[sp + 2]) + 1, 10, decimal_binary);
                sp += 3;
            }

            if (strlen(decimal_binary) >= 24) {
                int target1 = 0, target2 = 0, target3 = 0;
                char temp_binary[40];

                /* Binary buffer is full - transfer to target */

                for (p = 0; p < 8; p++) {
                    if (decimal_binary[p] == '1') {
                        target1 += (0x80 >> p);
                    }
                    if (decimal_binary[p + 8] == '1') {
                        target2 += (0x80 >> p);
                    }
                    if (decimal_binary[p + 16] == '1') {
                        target3 += (0x80 >> p);
                    }
                }
                target[tp] = target1;
                tp++;
                target[tp] = target2;
                tp++;
                target[tp] = target3;
                tp++;

                strcpy(temp_binary, "");
                if (strlen(decimal_binary) > 24) {
                    for (i = 0; i <= (int) (strlen(decimal_binary) - 24); i++) {
                        temp_binary[i] = decimal_binary[i + 24];
                    }
                    strcpy(decimal_binary, temp_binary);
                }
            }
        }

        if (current_mode == C1_BYTE) {
            next_mode = C1_BYTE;

            if (gs1 && (source[sp] == '[')) {
                next_mode = C1_ASCII;
            } else {
                if (source[sp] <= 127) {
                    next_mode = c1_look_ahead_test(source, length, sp, current_mode, gs1);
                }
            }

            if (next_mode != C1_BYTE) {
                /* Insert byte field length */
                if ((tp - byte_start) <= 249) {
                    for (i = tp; i >= byte_start; i--) {
                        target[i + 1] = target[i];
                    }
                    target[byte_start] = (tp - byte_start);
                    tp++;
                } else {
                    for (i = tp; i >= byte_start; i--) {
                        target[i + 2] = target[i];
                    }
                    target[byte_start] = 249 + ((tp - byte_start) / 250);
                    target[byte_start + 1] = ((tp - byte_start) % 250);
                    tp += 2;
                }
            } else {
                target[tp] = source[sp];
                tp++;
                sp++;
            }
        }

        if (tp > 1480) {
            /* Data is too large for symbol */
            strcpy(symbol->errtxt, "511: Input data too long");
            return 0;
        }
    } while (sp < length);

    /* Empty buffers */
    if (c40_p == 2) {
        int iv;

        c40_buffer[2] = 1;
        iv = (1600 * c40_buffer[0]) + (40 * c40_buffer[1]) + (c40_buffer[2]) + 1;
        target[tp] = iv / 256;
        tp++;
        target[tp] = iv % 256;
        tp++;
        target[tp] = 255;
        tp++; /* Unlatch */
    }
    if (c40_p == 1) {
        int iv;

        c40_buffer[1] = 1;
        c40_buffer[2] = 31; /* Pad */
        iv = (1600 * c40_buffer[0]) + (40 * c40_buffer[1]) + (c40_buffer[2]) + 1;
        target[tp] = iv / 256;
        tp++;
        target[tp] = iv % 256;
        tp++;
        target[tp] = 255;
        tp++; /* Unlatch */
    }
    if (text_p == 2) {
        int iv;

        text_buffer[2] = 1;
        iv = (1600 * text_buffer[0]) + (40 * text_buffer[1]) + (text_buffer[2]) + 1;
        target[tp] = iv / 256;
        tp++;
        target[tp] = iv % 256;
        tp++;
        target[tp] = 255;
        tp++; /* Unlatch */
    }
    if (text_p == 1) {
        int iv;

        text_buffer[1] = 1;
        text_buffer[2] = 31; /* Pad */
        iv = (1600 * text_buffer[0]) + (40 * text_buffer[1]) + (text_buffer[2]) + 1;
        target[tp] = iv / 256;
        tp++;
        target[tp] = iv % 256;
        tp++;
        target[tp] = 255;
        tp++; /* Unlatch */
    }

    if (current_mode == C1_DECIMAL) {
        size_t bits_left_in_byte, target_count;
        int sub_target;
        /* Finish Decimal mode and go back to ASCII */

        bin_append(63, 6, decimal_binary); /* Unlatch */

        target_count = 3;
        if (strlen(decimal_binary) <= 16) {
            target_count = 2;
        }
        if (strlen(decimal_binary) <= 8) {
            target_count = 1;
        }
        bits_left_in_byte = (8 * target_count) - strlen(decimal_binary);
        if (bits_left_in_byte == 8) {
            bits_left_in_byte = 0;
        }

        if (bits_left_in_byte == 2) {
            bin_append(1, 2, decimal_binary);
        }

        if ((bits_left_in_byte == 4) || (bits_left_in_byte == 6)) {
            bin_append(15, 4, decimal_binary);
        }

        if (bits_left_in_byte == 6) {
            bin_append(1, 2, decimal_binary);
        }

        /* Binary buffer is full - transfer to target */
        if (target_count >= 1) {
            sub_target = 0;

            for (i = 0; i < 8; i++) {
                if (decimal_binary[i] == '1') {
                    sub_target += 128 >> i;
                }
            }
            target[tp] = sub_target;
            tp++;
        }
        if (target_count >= 2) {
            sub_target = 0;

            for (i = 0; i < 8; i++) {
                if (decimal_binary[i + 8] == '1') {
                    sub_target += 128 >> i;
                }
            }
            target[tp] = sub_target;
            tp++;
        }
        if (target_count == 3) {
            sub_target = 0;

            for (i = 0; i < 8; i++) {
                if (decimal_binary[i + 16] == '1') {
                    sub_target += 128 >> i;
                }
            }
            target[tp] = sub_target;
            tp++;
        }
    }

    if (current_mode == C1_BYTE) {
        /* Insert byte field length */
        if ((tp - byte_start) <= 249) {
            for (i = tp; i >= byte_start; i--) {
                target[i + 1] = target[i];
            }
            target[byte_start] = (tp - byte_start);
            tp++;
        } else {
            for (i = tp; i >= byte_start; i--) {
                target[i + 2] = target[i];
            }
            target[byte_start] = 249 + ((tp - byte_start) / 250);
            target[byte_start + 1] = ((tp - byte_start) % 250);
            tp += 2;
        }
    }

    /* Re-check length of data */
    if (tp > 1480) {
        /* Data is too large for symbol */
        strcpy(symbol->errtxt, "512: Input data too long");
        return 0;
    }
    /*
    printf("targets:\n");
    for(i = 0; i < tp; i++) {
            printf("[%d]", target[i]);
    }
    printf("\n");
     */
    return tp;
}

static void block_copy(struct zint_symbol *symbol, char grid[][120], int start_row, int start_col, int height, int width, int row_offset, int col_offset) {
    int i, j;

    for (i = start_row; i < (start_row + height); i++) {
        for (j = start_col; j < (start_col + width); j++) {
            if (grid[i][j] == '1') {
                set_module(symbol, i + row_offset, j + col_offset);
            }
        }
    }
}

INTERNAL int code_one(struct zint_symbol *symbol, unsigned char source[], int length) {
    int size = 1, i, j;

    char datagrid[136][120];
    int row, col;
    int sub_version = 0;

    if ((symbol->option_2 < 0) || (symbol->option_2 > 10)) {
        strcpy(symbol->errtxt, "513: Invalid symbol size");
        return ZINT_ERROR_INVALID_OPTION;
    }

    if (symbol->option_2 == 9) {
        /* Version S */
        int codewords;
        large_int elreg;
        unsigned int data[15], ecc[15];
        int stream[30];
        int block_width;

        if (length > 18) {
            strcpy(symbol->errtxt, "514: Input data too long");
            return ZINT_ERROR_TOO_LONG;
        }
        if (is_sane(NEON, source, length) == ZINT_ERROR_INVALID_DATA) {
            strcpy(symbol->errtxt, "515: Invalid input data (Version S encodes numeric input only)");
            return ZINT_ERROR_INVALID_DATA;
        }

        sub_version = 3;
        codewords = 12;
        block_width = 6; /* Version S-30 */
        if (length <= 12) {
            /* Version S-20 */
            sub_version = 2;
            codewords = 8;
            block_width = 4;
        }
        if (length <= 6) {
            /* Version S-10 */
            sub_version = 1;
            codewords = 4;
            block_width = 2;
        }

        large_load_str_u64(&elreg, source, length);

        for (i = 0; i < 15; i++) {
            data[i] = 0;
            ecc[i] = 0;
        }

        large_uint_array(&elreg, data, codewords, 5 /*bits*/);

        rs_init_gf(0x25);
        rs_init_code(codewords, 1);
        rs_encode_long(codewords, data, ecc);
        rs_free();

        for (i = 0; i < codewords; i++) {
            stream[i] = data[i];
            stream[i + codewords] = ecc[codewords - i - 1];
        }

        for (i = 0; i < 136; i++) {
            for (j = 0; j < 120; j++) {
                datagrid[i][j] = '0';
            }
        }

        i = 0;
        for (row = 0; row < 2; row++) {
            for (col = 0; col < block_width; col++) {
                if (stream[i] & 0x10) {
                    datagrid[row * 2][col * 5] = '1';
                }
                if (stream[i] & 0x08) {
                    datagrid[row * 2][(col * 5) + 1] = '1';
                }
                if (stream[i] & 0x04) {
                    datagrid[row * 2][(col * 5) + 2] = '1';
                }
                if (stream[i] & 0x02) {
                    datagrid[(row * 2) + 1][col * 5] = '1';
                }
                if (stream[i] & 0x01) {
                    datagrid[(row * 2) + 1][(col * 5) + 1] = '1';
                }
                if (stream[i + 1] & 0x10) {
                    datagrid[row * 2][(col * 5) + 3] = '1';
                }
                if (stream[i + 1] & 0x08) {
                    datagrid[row * 2][(col * 5) + 4] = '1';
                }
                if (stream[i + 1] & 0x04) {
                    datagrid[(row * 2) + 1][(col * 5) + 2] = '1';
                }
                if (stream[i + 1] & 0x02) {
                    datagrid[(row * 2) + 1][(col * 5) + 3] = '1';
                }
                if (stream[i + 1] & 0x01) {
                    datagrid[(row * 2) + 1][(col * 5) + 4] = '1';
                }
                i += 2;
            }
        }

        size = 9;
        symbol->rows = 8;
        symbol->width = 10 * sub_version + 1;
    }

    if (symbol->option_2 == 10) {
        /* Version T */
        unsigned int data[80] = {0}; /* Allow for doubled digits */
        unsigned int ecc[22];
        unsigned int stream[60];
        int data_length;
        int data_cw, ecc_cw, block_width;

        if (length > 80) {
            strcpy(symbol->errtxt, "519: Input data too long");
            return ZINT_ERROR_TOO_LONG;
        }

        data_length = c1_encode(symbol, source, data, length);

        if (data_length == 0) {
            return ZINT_ERROR_TOO_LONG;
        }

        if (data_length > 38) {
            strcpy(symbol->errtxt, "516: Input data too long");
            return ZINT_ERROR_TOO_LONG;
        }

        size = 10;
        sub_version = 3;
        data_cw = 38;
        ecc_cw = 22;
        block_width = 12;
        if (data_length <= 24) {
            sub_version = 2;
            data_cw = 24;
            ecc_cw = 16;
            block_width = 8;
        }
        if (data_length <= 10) {
            sub_version = 1;
            data_cw = 10;
            ecc_cw = 10;
            block_width = 4;
        }

        for (i = data_length; i < data_cw; i++) {
            data[i] = 129; /* Pad */
        }

        /* Calculate error correction data */
        rs_init_gf(0x12d);
        rs_init_code(ecc_cw, 1);
        rs_encode_long(data_cw, data, ecc);
        rs_free();

        /* "Stream" combines data and error correction data */
        for (i = 0; i < data_cw; i++) {
            stream[i] = data[i];
        }
        for (i = 0; i < ecc_cw; i++) {
            stream[data_cw + i] = ecc[ecc_cw - i - 1];
        }

        for (i = 0; i < 136; i++) {
            for (j = 0; j < 120; j++) {
                datagrid[i][j] = '0';
            }
        }

        i = 0;
        for (row = 0; row < 5; row++) {
            for (col = 0; col < block_width; col++) {
                if (stream[i] & 0x80) {
                    datagrid[row * 2][col * 4] = '1';
                }
                if (stream[i] & 0x40) {
                    datagrid[row * 2][(col * 4) + 1] = '1';
                }
                if (stream[i] & 0x20) {
                    datagrid[row * 2][(col * 4) + 2] = '1';
                }
                if (stream[i] & 0x10) {
                    datagrid[row * 2][(col * 4) + 3] = '1';
                }
                if (stream[i] & 0x08) {
                    datagrid[(row * 2) + 1][col * 4] = '1';
                }
                if (stream[i] & 0x04) {
                    datagrid[(row * 2) + 1][(col * 4) + 1] = '1';
                }
                if (stream[i] & 0x02) {
                    datagrid[(row * 2) + 1][(col * 4) + 2] = '1';
                }
                if (stream[i] & 0x01) {
                    datagrid[(row * 2) + 1][(col * 4) + 3] = '1';
                }
                i++;
            }
        }

        symbol->rows = 16;
        symbol->width = (sub_version * 16) + 1;
    }

    if ((symbol->option_2 != 9) && (symbol->option_2 != 10)) {
        /* Version A to H */
        unsigned int data[1500], ecc[600];
        unsigned int sub_data[190], sub_ecc[75];
        unsigned int stream[2100];
        int data_length;
        int data_blocks;

        for (i = 0; i < 1500; i++) {
            data[i] = 0;
        }
        data_length = c1_encode(symbol, source, data, length);

        if (data_length == 0) {
            strcpy(symbol->errtxt, "517: Input data is too long");
            return ZINT_ERROR_TOO_LONG;
        }

        for (i = 7; i >= 0; i--) {
            if (c1_data_length[i] >= data_length) {
                size = i + 1;
            }
        }

        if (symbol->option_2 > size) {
            size = symbol->option_2;
        }

        if ((symbol-> option_2 != 0) && (symbol->option_2 < size)) {
            strcpy(symbol->errtxt, "518: Input too long for selected symbol size");
            return ZINT_ERROR_TOO_LONG;
        }

        for (i = data_length; i < c1_data_length[size - 1]; i++) {
            data[i] = 129; /* Pad */
        }

        /* Calculate error correction data */
        data_length = c1_data_length[size - 1];
        for (i = 0; i < 190; i++) {
            sub_data[i] = 0;
        }
        for (i = 0; i < 75; i++) {
            sub_ecc[i] = 0;
        }

        data_blocks = c1_blocks[size - 1];

        rs_init_gf(0x12d);
        rs_init_code(c1_ecc_blocks[size - 1], 0);
        for (i = 0; i < data_blocks; i++) {
            for (j = 0; j < c1_data_blocks[size - 1]; j++) {

                sub_data[j] = data[j * data_blocks + i];
            }
            rs_encode_long(c1_data_blocks[size - 1], sub_data, sub_ecc);
            for (j = 0; j < c1_ecc_blocks[size - 1]; j++) {
                ecc[c1_ecc_length[size - 1] - (j * data_blocks + i) - 1] = sub_ecc[j];
            }
        }
        rs_free();

        /* "Stream" combines data and error correction data */
        for (i = 0; i < data_length; i++) {
            stream[i] = data[i];
        }
        for (i = 0; i < c1_ecc_length[size - 1]; i++) {
            stream[data_length + i] = ecc[i];
        }

        for (i = 0; i < 136; i++) {
            for (j = 0; j < 120; j++) {
                datagrid[i][j] = '0';
            }
        }

        i = 0;
        for (row = 0; row < c1_grid_height[size - 1]; row++) {
            for (col = 0; col < c1_grid_width[size - 1]; col++) {
                if (stream[i] & 0x80) {
                    datagrid[row * 2][col * 4] = '1';
                }
                if (stream[i] & 0x40) {
                    datagrid[row * 2][(col * 4) + 1] = '1';
                }
                if (stream[i] & 0x20) {
                    datagrid[row * 2][(col * 4) + 2] = '1';
                }
                if (stream[i] & 0x10) {
                    datagrid[row * 2][(col * 4) + 3] = '1';
                }
                if (stream[i] & 0x08) {
                    datagrid[(row * 2) + 1][col * 4] = '1';
                }
                if (stream[i] & 0x04) {
                    datagrid[(row * 2) + 1][(col * 4) + 1] = '1';
                }
                if (stream[i] & 0x02) {
                    datagrid[(row * 2) + 1][(col * 4) + 2] = '1';
                }
                if (stream[i] & 0x01) {
                    datagrid[(row * 2) + 1][(col * 4) + 3] = '1';
                }
                i++;
            }
        }

        symbol->rows = c1_height[size - 1];
        symbol->width = c1_width[size - 1];
    }

    switch (size) {
        case 1: /* Version A */
            central_finder(symbol, 6, 3, 1);
            vert(symbol, 4, 6, 1);
            vert(symbol, 12, 5, 0);
            set_module(symbol, 5, 12);
            spigot(symbol, 0);
            spigot(symbol, 15);
            block_copy(symbol, datagrid, 0, 0, 5, 4, 0, 0);
            block_copy(symbol, datagrid, 0, 4, 5, 12, 0, 2);
            block_copy(symbol, datagrid, 5, 0, 5, 12, 6, 0);
            block_copy(symbol, datagrid, 5, 12, 5, 4, 6, 2);
            break;
        case 2: /* Version B */
            central_finder(symbol, 8, 4, 1);
            vert(symbol, 4, 8, 1);
            vert(symbol, 16, 7, 0);
            set_module(symbol, 7, 16);
            spigot(symbol, 0);
            spigot(symbol, 21);
            block_copy(symbol, datagrid, 0, 0, 7, 4, 0, 0);
            block_copy(symbol, datagrid, 0, 4, 7, 16, 0, 2);
            block_copy(symbol, datagrid, 7, 0, 7, 16, 8, 0);
            block_copy(symbol, datagrid, 7, 16, 7, 4, 8, 2);
            break;
        case 3: /* Version C */
            central_finder(symbol, 11, 4, 2);
            vert(symbol, 4, 11, 1);
            vert(symbol, 26, 13, 1);
            vert(symbol, 4, 10, 0);
            vert(symbol, 26, 10, 0);
            spigot(symbol, 0);
            spigot(symbol, 27);
            block_copy(symbol, datagrid, 0, 0, 10, 4, 0, 0);
            block_copy(symbol, datagrid, 0, 4, 10, 20, 0, 2);
            block_copy(symbol, datagrid, 0, 24, 10, 4, 0, 4);
            block_copy(symbol, datagrid, 10, 0, 10, 4, 8, 0);
            block_copy(symbol, datagrid, 10, 4, 10, 20, 8, 2);
            block_copy(symbol, datagrid, 10, 24, 10, 4, 8, 4);
            break;
        case 4: /* Version D */
            central_finder(symbol, 16, 5, 1);
            vert(symbol, 4, 16, 1);
            vert(symbol, 20, 16, 1);
            vert(symbol, 36, 16, 1);
            vert(symbol, 4, 15, 0);
            vert(symbol, 20, 15, 0);
            vert(symbol, 36, 15, 0);
            spigot(symbol, 0);
            spigot(symbol, 12);
            spigot(symbol, 27);
            spigot(symbol, 39);
            block_copy(symbol, datagrid, 0, 0, 15, 4, 0, 0);
            block_copy(symbol, datagrid, 0, 4, 15, 14, 0, 2);
            block_copy(symbol, datagrid, 0, 18, 15, 14, 0, 4);
            block_copy(symbol, datagrid, 0, 32, 15, 4, 0, 6);
            block_copy(symbol, datagrid, 15, 0, 15, 4, 10, 0);
            block_copy(symbol, datagrid, 15, 4, 15, 14, 10, 2);
            block_copy(symbol, datagrid, 15, 18, 15, 14, 10, 4);
            block_copy(symbol, datagrid, 15, 32, 15, 4, 10, 6);
            break;
        case 5: /* Version E */
            central_finder(symbol, 22, 5, 2);
            vert(symbol, 4, 22, 1);
            vert(symbol, 26, 24, 1);
            vert(symbol, 48, 22, 1);
            vert(symbol, 4, 21, 0);
            vert(symbol, 26, 21, 0);
            vert(symbol, 48, 21, 0);
            spigot(symbol, 0);
            spigot(symbol, 12);
            spigot(symbol, 39);
            spigot(symbol, 51);
            block_copy(symbol, datagrid, 0, 0, 21, 4, 0, 0);
            block_copy(symbol, datagrid, 0, 4, 21, 20, 0, 2);
            block_copy(symbol, datagrid, 0, 24, 21, 20, 0, 4);
            block_copy(symbol, datagrid, 0, 44, 21, 4, 0, 6);
            block_copy(symbol, datagrid, 21, 0, 21, 4, 10, 0);
            block_copy(symbol, datagrid, 21, 4, 21, 20, 10, 2);
            block_copy(symbol, datagrid, 21, 24, 21, 20, 10, 4);
            block_copy(symbol, datagrid, 21, 44, 21, 4, 10, 6);
            break;
        case 6: /* Version F */
            central_finder(symbol, 31, 5, 3);
            vert(symbol, 4, 31, 1);
            vert(symbol, 26, 35, 1);
            vert(symbol, 48, 31, 1);
            vert(symbol, 70, 35, 1);
            vert(symbol, 4, 30, 0);
            vert(symbol, 26, 30, 0);
            vert(symbol, 48, 30, 0);
            vert(symbol, 70, 30, 0);
            spigot(symbol, 0);
            spigot(symbol, 12);
            spigot(symbol, 24);
            spigot(symbol, 45);
            spigot(symbol, 57);
            spigot(symbol, 69);
            block_copy(symbol, datagrid, 0, 0, 30, 4, 0, 0);
            block_copy(symbol, datagrid, 0, 4, 30, 20, 0, 2);
            block_copy(symbol, datagrid, 0, 24, 30, 20, 0, 4);
            block_copy(symbol, datagrid, 0, 44, 30, 20, 0, 6);
            block_copy(symbol, datagrid, 0, 64, 30, 4, 0, 8);
            block_copy(symbol, datagrid, 30, 0, 30, 4, 10, 0);
            block_copy(symbol, datagrid, 30, 4, 30, 20, 10, 2);
            block_copy(symbol, datagrid, 30, 24, 30, 20, 10, 4);
            block_copy(symbol, datagrid, 30, 44, 30, 20, 10, 6);
            block_copy(symbol, datagrid, 30, 64, 30, 4, 10, 8);
            break;
        case 7: /* Version G */
            central_finder(symbol, 47, 6, 2);
            vert(symbol, 6, 47, 1);
            vert(symbol, 27, 49, 1);
            vert(symbol, 48, 47, 1);
            vert(symbol, 69, 49, 1);
            vert(symbol, 90, 47, 1);
            vert(symbol, 6, 46, 0);
            vert(symbol, 27, 46, 0);
            vert(symbol, 48, 46, 0);
            vert(symbol, 69, 46, 0);
            vert(symbol, 90, 46, 0);
            spigot(symbol, 0);
            spigot(symbol, 12);
            spigot(symbol, 24);
            spigot(symbol, 36);
            spigot(symbol, 67);
            spigot(symbol, 79);
            spigot(symbol, 91);
            spigot(symbol, 103);
            block_copy(symbol, datagrid, 0, 0, 46, 6, 0, 0);
            block_copy(symbol, datagrid, 0, 6, 46, 19, 0, 2);
            block_copy(symbol, datagrid, 0, 25, 46, 19, 0, 4);
            block_copy(symbol, datagrid, 0, 44, 46, 19, 0, 6);
            block_copy(symbol, datagrid, 0, 63, 46, 19, 0, 8);
            block_copy(symbol, datagrid, 0, 82, 46, 6, 0, 10);
            block_copy(symbol, datagrid, 46, 0, 46, 6, 12, 0);
            block_copy(symbol, datagrid, 46, 6, 46, 19, 12, 2);
            block_copy(symbol, datagrid, 46, 25, 46, 19, 12, 4);
            block_copy(symbol, datagrid, 46, 44, 46, 19, 12, 6);
            block_copy(symbol, datagrid, 46, 63, 46, 19, 12, 8);
            block_copy(symbol, datagrid, 46, 82, 46, 6, 12, 10);
            break;
        case 8: /* Version H */
            central_finder(symbol, 69, 6, 3);
            vert(symbol, 6, 69, 1);
            vert(symbol, 26, 73, 1);
            vert(symbol, 46, 69, 1);
            vert(symbol, 66, 73, 1);
            vert(symbol, 86, 69, 1);
            vert(symbol, 106, 73, 1);
            vert(symbol, 126, 69, 1);
            vert(symbol, 6, 68, 0);
            vert(symbol, 26, 68, 0);
            vert(symbol, 46, 68, 0);
            vert(symbol, 66, 68, 0);
            vert(symbol, 86, 68, 0);
            vert(symbol, 106, 68, 0);
            vert(symbol, 126, 68, 0);
            spigot(symbol, 0);
            spigot(symbol, 12);
            spigot(symbol, 24);
            spigot(symbol, 36);
            spigot(symbol, 48);
            spigot(symbol, 60);
            spigot(symbol, 87);
            spigot(symbol, 99);
            spigot(symbol, 111);
            spigot(symbol, 123);
            spigot(symbol, 135);
            spigot(symbol, 147);
            block_copy(symbol, datagrid, 0, 0, 68, 6, 0, 0);
            block_copy(symbol, datagrid, 0, 6, 68, 18, 0, 2);
            block_copy(symbol, datagrid, 0, 24, 68, 18, 0, 4);
            block_copy(symbol, datagrid, 0, 42, 68, 18, 0, 6);
            block_copy(symbol, datagrid, 0, 60, 68, 18, 0, 8);
            block_copy(symbol, datagrid, 0, 78, 68, 18, 0, 10);
            block_copy(symbol, datagrid, 0, 96, 68, 18, 0, 12);
            block_copy(symbol, datagrid, 0, 114, 68, 6, 0, 14);
            block_copy(symbol, datagrid, 68, 0, 68, 6, 12, 0);
            block_copy(symbol, datagrid, 68, 6, 68, 18, 12, 2);
            block_copy(symbol, datagrid, 68, 24, 68, 18, 12, 4);
            block_copy(symbol, datagrid, 68, 42, 68, 18, 12, 6);
            block_copy(symbol, datagrid, 68, 60, 68, 18, 12, 8);
            block_copy(symbol, datagrid, 68, 78, 68, 18, 12, 10);
            block_copy(symbol, datagrid, 68, 96, 68, 18, 12, 12);
            block_copy(symbol, datagrid, 68, 114, 68, 6, 12, 14);
            break;
        case 9: /* Version S */
            horiz(symbol, 5, 1);
            horiz(symbol, 7, 1);
            set_module(symbol, 6, 0);
            set_module(symbol, 6, symbol->width - 1);
            unset_module(symbol, 7, 1);
            unset_module(symbol, 7, symbol->width - 2);
            switch (sub_version) {
                case 1: /* Version S-10 */
                    set_module(symbol, 0, 5);
                    block_copy(symbol, datagrid, 0, 0, 4, 5, 0, 0);
                    block_copy(symbol, datagrid, 0, 5, 4, 5, 0, 1);
                    break;
                case 2: /* Version S-20 */
                    set_module(symbol, 0, 10);
                    set_module(symbol, 4, 10);
                    block_copy(symbol, datagrid, 0, 0, 4, 10, 0, 0);
                    block_copy(symbol, datagrid, 0, 10, 4, 10, 0, 1);
                    break;
                case 3: /* Version S-30 */
                    set_module(symbol, 0, 15);
                    set_module(symbol, 4, 15);
                    set_module(symbol, 6, 15);
                    block_copy(symbol, datagrid, 0, 0, 4, 15, 0, 0);
                    block_copy(symbol, datagrid, 0, 15, 4, 15, 0, 1);
                    break;
            }
            break;
        case 10: /* Version T */
            horiz(symbol, 11, 1);
            horiz(symbol, 13, 1);
            horiz(symbol, 15, 1);
            set_module(symbol, 12, 0);
            set_module(symbol, 12, symbol->width - 1);
            set_module(symbol, 14, 0);
            set_module(symbol, 14, symbol->width - 1);
            unset_module(symbol, 13, 1);
            unset_module(symbol, 13, symbol->width - 2);
            unset_module(symbol, 15, 1);
            unset_module(symbol, 15, symbol->width - 2);
            switch (sub_version) {
                case 1: /* Version T-16 */
                    set_module(symbol, 0, 8);
                    set_module(symbol, 10, 8);
                    block_copy(symbol, datagrid, 0, 0, 10, 8, 0, 0);
                    block_copy(symbol, datagrid, 0, 8, 10, 8, 0, 1);
                    break;
                case 2: /* Version T-32 */
                    set_module(symbol, 0, 16);
                    set_module(symbol, 10, 16);
                    set_module(symbol, 12, 16);
                    block_copy(symbol, datagrid, 0, 0, 10, 16, 0, 0);
                    block_copy(symbol, datagrid, 0, 16, 10, 16, 0, 1);
                    break;
                case 3: /* Verion T-48 */
                    set_module(symbol, 0, 24);
                    set_module(symbol, 10, 24);
                    set_module(symbol, 12, 24);
                    set_module(symbol, 14, 24);
                    block_copy(symbol, datagrid, 0, 0, 10, 24, 0, 0);
                    block_copy(symbol, datagrid, 0, 24, 10, 24, 0, 1);
                    break;
            }
            break;
    }

    for (i = 0; i < symbol->rows; i++) {
        symbol->row_height[i] = 1;
    }

    return 0;
}
