mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
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/*
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* Copyright (C) 2019 Sony Interactive Entertainment Inc.
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*
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "YarrFlags.h"
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#include <wtf/OptionSet.h>
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#include <wtf/Optional.h>
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#include <wtf/text/StringView.h>
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namespace JSC { namespace Yarr {
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Optional<OptionSet<Flags>> parseFlags(StringView string)
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{
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OptionSet<Flags> flags;
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for (auto character : string.codeUnits()) {
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switch (character) {
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case 'g':
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if (flags.contains(Flags::Global))
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return WTF::nullopt;
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flags.add(Flags::Global);
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break;
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case 'i':
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if (flags.contains(Flags::IgnoreCase))
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return WTF::nullopt;
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flags.add(Flags::IgnoreCase);
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break;
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case 'm':
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if (flags.contains(Flags::Multiline))
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return WTF::nullopt;
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flags.add(Flags::Multiline);
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break;
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case 's':
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if (flags.contains(Flags::DotAll))
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return WTF::nullopt;
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flags.add(Flags::DotAll);
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break;
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case 'u':
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if (flags.contains(Flags::Unicode))
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return WTF::nullopt;
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flags.add(Flags::Unicode);
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break;
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case 'y':
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if (flags.contains(Flags::Sticky))
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return WTF::nullopt;
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flags.add(Flags::Sticky);
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break;
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default:
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return WTF::nullopt;
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}
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}
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return makeOptional(flags);
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}
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} } // namespace JSC::Yarr
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