45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
|
|
*
|
|
* 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, 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 Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <wchar.h>
|
|
|
|
#include "chat.h"
|
|
|
|
enum { Cap = 512 };
|
|
static wchar_t buf[Cap] = L"foo\0033bar\3baz";
|
|
static size_t len = 12;
|
|
static size_t pos = 6;
|
|
|
|
const char *editHead(void) {
|
|
static char mbs[MB_LEN_MAX * Cap];
|
|
const wchar_t *ptr = buf;
|
|
size_t n = wcsnrtombs(mbs, &ptr, pos, sizeof(mbs), NULL);
|
|
assert(n != (size_t)-1);
|
|
return mbs;
|
|
}
|
|
|
|
const char *editTail(void) {
|
|
static char mbs[MB_LEN_MAX * Cap];
|
|
const wchar_t *ptr = &buf[pos];
|
|
size_t n = wcsnrtombs(mbs, &ptr, len - pos, sizeof(mbs), NULL);
|
|
assert(n != (size_t)-1);
|
|
return mbs;
|
|
}
|