105 lines
4.1 KiB
C
105 lines
4.1 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/bits/safemacros.h"
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#include "libc/fmt/fmt.h"
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#include "libc/log/check.h"
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#include "libc/mem/mem.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/str/str.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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#include "tool/decode/lib/bitabuilder.h"
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static FILE *fin, *fout;
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static char width, *line;
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static size_t linecap, i, x, y;
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static struct BitaBuilder *bitset;
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static char *g_inpath, *g_outpath;
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noreturn void ShowUsage(FILE *f, int rc) {
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fprintf(f, "Usage: %s [-o OUTPUT] [INPUT]\n", "Usage",
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program_invocation_name);
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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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g_inpath = "/dev/stdin";
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g_outpath = "/dev/stdout";
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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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g_outpath = optarg;
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break;
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case 'h':
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case '?':
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ShowUsage(stdout, EXIT_SUCCESS);
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default:
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ShowUsage(stderr, EX_USAGE);
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}
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}
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if (argc - optind) {
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g_inpath = argv[optind];
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}
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}
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/**
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* Converts official UNICODE ‘monospace widths’ (yup) to a bitset.
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*
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* (╯°□°)╯︵ ̲┻̲━̲┻
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* 要依法治国是赞美那些谁是公义的和惩罚恶人。 - 韩非
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*
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* 172kB TXT → 32kB bits → 525 bytes lz4
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*
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* @note this tool may print binary to stdout
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* @see libc/kompressor/lz4decode.c
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* @see tool/viz/bing.c
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* @see tool/viz/fold.c
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* @see unicode.org/reports/tr11/#Definitions
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*/
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int main(int argc, char *argv[]) {
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GetOpts(argc, argv);
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bitset = bitabuilder_new();
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CHECK_NOTNULL(fin = fopen(g_inpath, "r"));
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while ((getline(&line, &linecap, fin)) != -1) {
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x = 0;
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y = 0;
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if (sscanf(line, "%x..%x;%c", &x, &y, &width) != 3) {
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if (sscanf(line, "%x;%c", &x, &width) == 2) {
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y = x;
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} else {
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continue;
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}
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}
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CHECK_LE(x, y);
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if (width == 'F' /* full-width */ || width == 'W' /* wide */) {
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for (i = x; i <= y; ++i) {
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CHECK(bitabuilder_setbit(bitset, i));
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}
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}
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}
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CHECK_NOTNULL(fout = fopen(g_outpath, "wb"));
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CHECK(bitabuilder_fwrite(bitset, fout));
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bitabuilder_free(&bitset);
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return fclose(fin) | fclose(fout);
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}
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