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Copy pathYarrFlags.h
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91 lines (74 loc) · 3.34 KB
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/*
* Copyright (C) 2019 Sony Interactive Entertainment Inc.
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <JavaScriptCore/JSExportMacros.h>
#include <array>
#include <optional>
#include <span>
#include <wtf/Forward.h>
#include <wtf/StdLibExtras.h>
#include <wtf/text/Latin1Character.h>
namespace JSC { namespace Yarr {
// Flags must be ordered in alphabet ordering.
#define JSC_REGEXP_FLAGS(macro) \
macro('d', HasIndices, hasIndices, 0) \
macro('g', Global, global, 1) \
macro('i', IgnoreCase, ignoreCase, 2) \
macro('m', Multiline, multiline, 3) \
macro('s', DotAll, dotAll, 4) \
macro('u', Unicode, unicode, 5) \
macro('v', UnicodeSets, unicodeSets, 6) \
macro('y', Sticky, sticky, 7) \
#define JSC_REGEXP_MOD_FLAGS(macro) \
macro('i', IgnoreCase, ignoreCase) \
macro('m', Multiline, multiline) \
macro('s', DotAll, dotAll) \
#define JSC_COUNT_REGEXP_FLAG(key, name, lowerCaseName, index) + 1
static constexpr unsigned numberOfFlags = 0 JSC_REGEXP_FLAGS(JSC_COUNT_REGEXP_FLAG);
#undef JSC_COUNT_REGEXP_FLAG
enum class Flags : uint16_t {
#define JSC_DEFINE_REGEXP_FLAG(key, name, lowerCaseName, index) name = 1 << index,
JSC_REGEXP_FLAGS(JSC_DEFINE_REGEXP_FLAG)
#undef JSC_DEFINE_REGEXP_FLAG
DeletedValue = 1 << numberOfFlags,
};
JS_EXPORT_PRIVATE std::optional<OptionSet<Flags>> LEGACY_NODELETE parseFlags(StringView);
class FlagsString;
JS_EXPORT_PRIVATE FlagsString LEGACY_NODELETE flagsString(OptionSet<Flags>);
class FlagsString {
public:
FlagsString() = default;
// The characters are always followed by a null terminator.
std::span<const Latin1Character> span() const LIFETIME_BOUND { return std::span { m_characters }.first(m_length); }
private:
friend JS_EXPORT_PRIVATE FlagsString flagsString(OptionSet<Flags>);
std::array<Latin1Character, numberOfFlags + 1> m_characters { };
uint8_t m_length { 0 };
};
} } // namespace JSC::Yarr
namespace WTF {
inline const char* safePrintfType(const JSC::Yarr::FlagsString& string) { return byteCast<char>(string.span().data()); }
} // namespace WTF