63 lines
2.4 KiB
C++
63 lines
2.4 KiB
C++
// Copyright (c) 2019, Paul Ferrand
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// All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include "absl/strings/string_view.h"
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inline void trimInPlace(absl::string_view& s)
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{
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const auto leftPosition = s.find_first_not_of(" \r\t\n\f\v");
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if (leftPosition != s.npos) {
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s.remove_prefix(leftPosition);
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const auto rightPosition = s.find_last_not_of(" \r\t\n\f\v");
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s.remove_suffix(s.size() - rightPosition - 1);
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} else {
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s.remove_suffix(s.size());
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}
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}
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inline absl::string_view trim(absl::string_view s)
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{
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const auto leftPosition = s.find_first_not_of(" \r\t\n\f\v");
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if (leftPosition != s.npos) {
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s.remove_prefix(leftPosition);
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const auto rightPosition = s.find_last_not_of(" \r\t\n\f\v");
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s.remove_suffix(s.size() - rightPosition - 1);
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} else {
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s.remove_suffix(s.size());
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}
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return s;
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}
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constexpr uint64_t Fnv1aBasis = 0x811C9DC5;
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constexpr uint64_t Fnv1aPrime = 0x01000193;
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inline constexpr uint64_t hash(absl::string_view s, uint64_t h = Fnv1aBasis)
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{
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if (s.length() > 0)
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return hash( { s.data() + 1, s.length() - 1 }, (h ^ s.front()) * Fnv1aPrime );
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return h;
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}
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