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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/' ```
73 lines
2.9 KiB
C
73 lines
2.9 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 2022 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/serialize.h"
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#include "libc/intrin/bswap.h"
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#include "libc/macros.internal.h"
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#include "libc/str/str.h"
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#include "libc/str/tab.internal.h"
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#include "net/http/http.h"
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static const char kNoCompressExts[][8] = {
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"bz2", //
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"gif", //
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"gz", //
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"jpg", //
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"lz4", //
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"mp4", //
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"mpeg", //
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"mpg", //
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"png", //
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"webp", //
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"xz", //
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"zip", //
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};
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static bool BisectNoCompressExts(uint64_t ext) {
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int m, l, r;
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l = 0;
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r = ARRAYLEN(kNoCompressExts) - 1;
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while (l <= r) {
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m = (l & r) + ((l ^ r) >> 1); // floor((a+b)/2)
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if (READ64BE(kNoCompressExts[m]) < ext) {
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l = m + 1;
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} else if (READ64BE(kNoCompressExts[m]) > ext) {
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r = m - 1;
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} else {
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return true;
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}
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}
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return false;
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}
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bool IsNoCompressExt(const char *p, size_t n) {
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int c, i;
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uint64_t w;
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if (n == -1) n = p ? strlen(p) : 0;
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if (n) {
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for (i = w = 0; n--;) {
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c = p[n] & 255;
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if (c == '.') break;
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if (++i > 8) return false;
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w <<= 8;
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w |= kToLower[c];
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}
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return BisectNoCompressExts(bswap_64(w));
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}
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return false;
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}
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