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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
113 lines
3.8 KiB
C
113 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 et 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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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/intrin/atomic.h"
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#include "libc/serialize.h"
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#include "libc/str/str.h"
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#include "libc/str/utf16.h"
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#include "libc/testlib/testlib.h"
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#define STRS 4
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#define BYTES 64
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#define APPEND(c) \
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do { \
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if (j + 1 < BYTES) { \
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bufs[i][j++] = c; \
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} \
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} while (0)
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static atomic_uint bufi;
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static char bufs[STRS][BYTES];
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static int AppendWide(wint_t x, int i, int j) {
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uint64_t w;
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if (isascii(x) && iscntrl(x)) {
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APPEND('\\');
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APPEND('0' + ((x & 0700) >> 6));
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APPEND('0' + ((x & 070) >> 3));
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APPEND('0' + (x & 7));
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} else if (x == '\\' || x == '\'') {
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APPEND('\\');
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APPEND(x);
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} else {
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w = tpenc(x);
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while (w) {
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APPEND(w);
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w >>= 8;
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}
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}
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return j;
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}
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/**
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* Turns string into code.
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*/
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char *testlib_formatstr(size_t cw, const void *p, int n) {
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int i, j = 0;
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if (!p) return "NULL";
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i = atomic_fetch_add(&bufi, 1) % STRS;
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switch (cw) {
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case 1: {
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const char *s = p;
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if (n < 0) n = s ? strlen(s) : 0;
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const char *se = s + n;
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APPEND('"');
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while (s < se) {
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j = AppendWide(*s++ & 255, i, j);
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}
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break;
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}
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case 2: {
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const char16_t *s = p;
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if (n < 0) n = s ? strlen16(s) : 0;
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const char16_t *se = s + n;
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APPEND('u');
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APPEND('"');
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while (s < se) {
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wint_t x = *s++ & 0xffff;
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if (IsUtf16Cont(x)) continue;
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if (!IsUcs2(x) && s < se) {
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wint_t y = *s++ & 0xffff;
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x = MergeUtf16(x, y);
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}
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j = AppendWide(x, i, j);
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}
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break;
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}
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case 4: {
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const wchar_t *s = p;
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if (n < 0) n = s ? wcslen(s) : 0;
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const wchar_t *se = s + n;
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APPEND('L');
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APPEND('"');
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while (s < se) {
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j = AppendWide(*s++, i, j);
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}
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break;
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}
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default:
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notpossible;
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}
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APPEND('"');
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bufs[i][j] = 0;
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if (j == BYTES - 1) {
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WRITE32LE(bufs[i] + j - 4, READ32LE("...\""));
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}
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return bufs[i];
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}
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