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394d998315
At least in neovim, `│vi:` is not recognized as a modeline because it has no preceding whitespace. After fixing this, opening a file yields an error because `net` is not an option. (`noet`, however, is.)
54 lines
2.6 KiB
C
54 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set noet 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/stdio/internal.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/thompike.h"
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#include "libc/str/tpdecodecb.internal.h"
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/**
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* Reads UTF-8 character from stream.
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* @return wide character or -1 on EOF or error
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*/
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wint_t fgetwc_unlocked(FILE *f) {
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int c, n;
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wint_t b, x, y;
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if (f->beg < f->end) {
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b = f->buf[f->beg++] & 0xff;
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} else if ((c = fgetc_unlocked(f)) != -1) {
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b = c;
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} else {
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return -1;
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}
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if (b < 0300) return b;
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n = ThomPikeLen(b);
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x = ThomPikeByte(b);
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while (--n) {
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if ((c = fgetc_unlocked(f)) == -1) return -1;
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y = c;
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if (ThomPikeCont(y)) {
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x = ThomPikeMerge(x, y);
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} else {
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ungetc_unlocked(y, f);
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return b;
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}
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}
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return x;
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}
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__strong_reference(fgetwc_unlocked, getwc_unlocked);
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