cosmopolitan/libc/testlib/formatstr.c

44 lines
2.5 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/bits/progn.internal.h"
#include "libc/bits/safemacros.internal.h"
#include "libc/str/str.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
/**
* Turns string into code.
*/
nodiscard testonly char *testlib_formatstr(size_t cw, const void *s, int n) {
switch (cw) {
case 1:
if (n == -1) n = s ? strlen(s) : 0;
return xasprintf("%`'.*s", n, s);
case 2:
if (n == -1) n = s ? strlen16(s) : 0;
return xasprintf("%`'.*hs", n, s);
case 4:
if (n == -1) n = s ? wcslen(s) : 0;
return xasprintf("%`'.*ls", n, s);
default:
abort();
}
}