62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
/*
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* FlowLineNoise.h
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FLOWLINENOISE_H
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#define FLOWLINENOISE_H
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#pragma once
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#include "flow/flow.h"
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#include <functional>
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struct LineNoise : NonCopyable {
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// Wraps the linenoise library so that it can be called from asynchronous Flow code
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// Only create one of these at a time; the linenoise library only supports one history
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//
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// The current implementation does not support calling read concurrently with any other
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// function (or itself).
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struct Hint {
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std::string text;
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int color;
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bool bold;
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bool valid;
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Hint() : text(), color(), bold(), valid() {}
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Hint(std::string const& text, int color, bool bold) : text(text), color(color), bold(bold), valid(true) {}
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};
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LineNoise(std::function<void(std::string const&, std::vector<std::string>&)> completion_callback,
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std::function<Hint(std::string const&)> hint_callback,
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int maxHistoryLines,
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bool multiline);
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~LineNoise();
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Future<Optional<std::string>> read(std::string const& prompt); // Returns "nothing" on EOF
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void historyAdd(std::string const& line);
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void historyLoad(std::string const& filename);
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void historySave(std::string const& filename);
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static Future<Void> onKeyboardInterrupt(); // Returns when Ctrl-C is next pressed (i.e. SIGINT)
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Reference<class IThreadPool> threadPool;
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struct LineNoiseReader* reader;
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};
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#endif |