116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/log/check.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/sysv/consts/ex.h"
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#include "libc/sysv/consts/exit.h"
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#include "third_party/getopt/getopt.h"
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static FILE *fi_, *fo_;
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static char *inpath_, *outpath_;
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noreturn void usage(int rc, FILE *f) {
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fprintf(f, "%s%s%s\n", "Usage: ", program_invocation_name,
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" [-o FILE] [FILE...]\n");
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exit(rc);
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}
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void getopts(int *argc, char *argv[]) {
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int opt;
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outpath_ = "-";
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while ((opt = getopt(*argc, argv, "?ho:")) != -1) {
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switch (opt) {
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case 'o':
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outpath_ = optarg;
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break;
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case '?':
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case 'h':
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usage(EXIT_SUCCESS, stdout);
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default:
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usage(EX_USAGE, stderr);
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}
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}
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if (optind == *argc) {
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argv[(*argc)++] = "-";
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}
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}
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void processfile(void) {
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wint_t wc;
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while ((wc = fgetwc(fi_)) != -1) {
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switch (wc) {
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case L'█':
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wc = L' ';
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break;
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case L'▓':
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wc = L'░';
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break;
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case L'▒':
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wc = L'▒';
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break;
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case L'░':
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wc = L'▓';
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break;
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/* █ */
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case L'▐':
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wc = L'▌';
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break;
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case L'▌':
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wc = L'▐';
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break;
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case L'▀':
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wc = L'▄';
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break;
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case L'▄':
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wc = L'▀';
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break;
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case L'☺':
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wc = L'☻';
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break;
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case L'☻':
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wc = L'☺';
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break;
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case L'○':
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wc = L'◙';
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break;
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case L'◙':
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wc = L'○';
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break;
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default:
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break;
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}
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fputwc(wc, fo_);
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}
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}
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int main(int argc, char *argv[]) {
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size_t i;
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getopts(&argc, argv);
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CHECK_NOTNULL((fo_ = fopen(outpath_, "w")));
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for (i = optind; i < argc; ++i) {
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CHECK_NOTNULL((fi_ = fopen((inpath_ = argv[i]), "r")));
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processfile();
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CHECK_NE(-1, fclose_s(&fi_));
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}
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CHECK_NE(-1, fclose_s(&fo_));
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return 0;
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}
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