general: split up some source files to lessen ZXing-C++ bloat

when `ZXING_USE_BUNDLED_ZINT` set

backend/code11.c

@@ -0,0 +1,155 @@
+/* code11.c - Handles Code 11 */
+/*
+    libzint - the open source barcode library
+    Copyright (C) 2008-2025 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.
+ */
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+/* Was in "code.c" */
+
+#include <assert.h>
+#include <stdio.h>
+#include "common.h"
+
+#define SODIUM_MNS_F    (IS_NUM_F | IS_MNS_F) /* SODIUM "0123456789-" */
+
+static const char C11Table[11 + 1][6] = {
+    {'1','1','1','1','2','1'}, {'2','1','1','1','2','1'}, {'1','2','1','1','2','1'}, {'2','2','1','1','1','1'},
+    {'1','1','2','1','2','1'}, {'2','1','2','1','1','1'}, {'1','2','2','1','1','1'}, {'1','1','1','2','2','1'},
+    {'2','1','1','2','1','1'}, {'2','1','1','1','1','1'}, {'1','1','2','1','1','1'},
+    {'1','1','2','2','1','1'} /* Start character (full 6), Stop character (first 5) */
+};
+
+/* Code 11 */
+INTERNAL int code11(struct zint_symbol *symbol, unsigned char source[], int length) {
+
+    int i;
+    int h;
+    int weight[141]; /* 140 + 1 extra for 1st check */
+    char dest[864]; /* 6 + 140 * 6 + 2 * 6 + 5 + 1 = 864 */
+    int error_number = 0;
+    char *d = dest;
+    int num_check_digits;
+    char checkstr[3] = {0};
+    static const char checkchrs[11] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-' };
+
+    /* Suppresses clang-tidy clang-analyzer-core.UndefinedBinaryOperatorResult warning */
+    assert(length > 0);
+
+    if (length > 140) { /* 8 (Start) + 140 * 8 + 2 * 8 (Check) + 7 (Stop) = 1151 */
+        return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 320, "Input length %d too long (maximum 140)", length);
+    }
+    if ((i = not_sane(SODIUM_MNS_F, source, length))) {
+        return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 321,
+                        "Invalid character at position %d in input (digits and \"-\" only)", i);
+    }
+
+    if (symbol->option_2 < 0 || symbol->option_2 > 2) {
+        return errtxtf(ZINT_ERROR_INVALID_OPTION, symbol, 339, "Invalid check digit version '%d' (1 or 2 only)",
+                        symbol->option_2);
+    }
+    if (symbol->option_2 == 2) {
+        num_check_digits = 0;
+    } else if (symbol->option_2 == 1) {
+        num_check_digits = 1;
+    } else {
+        num_check_digits = 2;
+    }
+
+
+    /* start character */
+    memcpy(d, C11Table[11], 6);
+    d +=  6;
+
+    /* Draw main body of barcode */
+    for (i = 0; i < length; i++, d += 6) {
+        if (source[i] == '-')
+            weight[i] = 10;
+        else
+            weight[i] = ctoi(source[i]);
+        memcpy(d, C11Table[weight[i]], 6);
+    }
+
+    if (num_check_digits) {
+		int c_weight = 1, c_count = 0, c_digit;
+        /* Calculate C checksum */
+        for (h = length - 1; h >= 0; h--) {
+            c_count += (c_weight * weight[h]);
+            c_weight++;
+
+            if (c_weight > 10) {
+                c_weight = 1;
+            }
+        }
+        c_digit = c_count % 11;
+
+        checkstr[0] = checkchrs[c_digit];
+        memcpy(d, C11Table[c_digit], 6);
+        d += 6;
+
+        if (num_check_digits == 2) {
+			int k_weight = 1, k_count = 0, k_digit;
+            weight[length] = c_digit;
+
+            /* Calculate K checksum */
+            for (h = length; h >= 0; h--) {
+                k_count += (k_weight * weight[h]);
+                k_weight++;
+
+                if (k_weight > 9) {
+                    k_weight = 1;
+                }
+            }
+            k_digit = k_count % 11;
+
+            checkstr[1] = checkchrs[k_digit];
+            memcpy(d, C11Table[k_digit], 6);
+            d += 6;
+        }
+    }
+
+    if (symbol->debug & ZINT_DEBUG_PRINT) {
+        printf("Check digit (%d): %s\n", num_check_digits, num_check_digits ? checkstr : "<none>");
+    }
+
+    /* Stop character */
+    memcpy(d, C11Table[11], 5);
+    d += 5;
+
+    expand(symbol, dest, d - dest);
+
+    /* TODO: Find documentation on BARCODE_CODE11 dimensions/height */
+
+    ustrcpy(symbol->text, source);
+    if (num_check_digits) {
+        ustrcat(symbol->text, checkstr);
+    }
+    return error_number;
+}
+
+/* vim: set ts=4 sw=4 et : */