cosmopolitan/tool/viz/unicode.c

93 lines
3.7 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ 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 Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/fmt.h"
#include "libc/mem/mem.h"
#include "libc/runtime/gc.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/unicode/unicode.h"
#include "libc/x/x.h"
int a, b, w, i;
char name[512];
void DisplayUnicodeCharacter(void) {
int c, cw;
c = i;
cw = wcwidth(c);
if (cw < 1) {
c = '?';
cw = 1;
}
if (w) {
if (w + 1 + cw > 80) {
printf("\n");
w = 0;
} else {
fputc(' ', stdout);
w += 1 + cw;
}
}
if (!w) {
printf("%08x ", i);
w = 9 + cw;
}
fputwc(c, stdout);
}
void DisplayUnicodeBlock(void) {
if (a == 0x10000) {
printf("\n\n\n\n\n\n\n "
"ASTRAL PLANES\n\n\n\n\n");
}
if (a == 0x0590 /* hebrew */) return;
if (a == 0x0600 /* arabic */) return;
if (a == 0x08a0 /* arabic */) return;
if (a == 0x0750 /* arabic */) return;
if (a == 0x0700 /* syriac */) return;
if (a == 0x10800 /* cypriot */) return;
printf("\n\n%-60s%20s\n"
"──────────────────────────────────────────────"
"──────────────────────────────────\n",
name, gc(xasprintf("%04x .. %04x", a, b)));
w = 0;
for (i = a; i <= b; ++i) {
DisplayUnicodeCharacter();
}
}
int main(int argc, char *argv[]) {
FILE *f;
char *line;
size_t linesize;
printf("\n\n\n\n\n UNICODE PLANES\n\n\n\n");
f = fopen("libc/unicode/blocks.txt", "r");
line = NULL;
linesize = 0;
while (!feof(f)) {
if (getline(&line, &linesize, f) == -1) break;
if (sscanf(line, "%x..%x; %s", &a, &b, name) != 3) continue;
DisplayUnicodeBlock();
}
free(line);
fclose(f);
return 0;
}