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e3b450005f
lookup() returns an Optional<String> which allows us to implement easy default values using lookup(key).value_or(default_value);
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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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 are met:
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*
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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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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <Kernel/CommandLine.h>
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namespace Kernel {
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static CommandLine* s_the;
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const CommandLine& kernel_command_line()
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{
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ASSERT(s_the);
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return *s_the;
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}
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void CommandLine::initialize(const String& string)
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{
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s_the = new CommandLine(string);
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}
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CommandLine::CommandLine(const String& string)
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: m_string(string)
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{
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s_the = this;
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for (auto str : m_string.split(' ')) {
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if (str == "") {
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continue;
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}
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auto pair = str.split_limit('=', 2);
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if (pair.size() == 1) {
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m_params.set(pair[0], "");
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} else {
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m_params.set(pair[0], pair[1]);
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}
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}
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}
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Optional<String> CommandLine::lookup(const String& key) const
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{
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return m_params.get(key);
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}
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bool CommandLine::contains(const String& key) const
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{
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return m_params.contains(key);
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}
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}
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