to_c-CaseFolding.c

/*
 * wlite: A 16-bit Unicode based tiny <wchar.h> library with CJK features
 * Copyright (C) 2022 Eido INOUE
 * 
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Lesser Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#include <locale.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "to_c.h"

int main(int argc, char **argv) {
    wlite_map_t_ *wlite_case = NULL;
    size_t case_n = 0;

    if (setlocale(LC_CTYPE, "") == NULL) {
        fputs("couldn't set CTYPE locale\n", stderr);
    }
    while (!feof(stdin)) {
        unsigned long from = 0xFFFF, to = 0xFFFF;
        char s[132] = { 0 }, class = '\0', *comment;

        if (fgets(s, sizeof(s), stdin) == NULL) {
            if (ferror(stdin))
                perror(NULL);
            break;
        }
        comment = strchr(s, '#');
        if (comment != NULL) {
            strcpy(comment, "\n");
        }
        if (sscanf(s, " %lX ; %c ; %lX ;", &from, &class, &to) != 3) {
            fprintf(stderr, "can't scan 3: %s", s);
            continue;
        }
        if (class != 'C' && class != 'S') {
            fprintf(stderr, "skipping '%c' map for: %s", class, s);
            continue;
        }
        add_map((wchar_t) from, (wchar_t) to, &wlite_case, &case_n);
    }

    fprintf(stdout, "#include \"%s\"\n", "wlite_config.h");

    print_maps(stdout, wlite_case, WLITE_ID2STR_(wlite_case), case_n);

    return 0;
}