mirror of
https://github.com/OpenRCT2/OpenRCT2
synced 2026-01-24 15:24:30 +01:00
78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
/*****************************************************************************
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* Copyright (c) 2014-2018 OpenRCT2 developers
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*
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* For a complete list of all authors, please refer to contributors.md
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* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is licensed under the GNU General Public License version 3.
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*****************************************************************************/
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#pragma once
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#include "../common.h"
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#include "../localisation/Localisation.h"
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#include "../util/Util.h"
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#include "String.hpp"
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interface IStringReader
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{
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virtual ~IStringReader() = default;
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virtual bool TryPeek(codepoint_t * outCodepoint) abstract;
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virtual bool TryRead(codepoint_t * outCodepoint) abstract;
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virtual void Skip() abstract;
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virtual bool CanRead() const abstract;
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};
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class UTF8StringReader final : public IStringReader
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{
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public:
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explicit UTF8StringReader(const utf8* text)
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{
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text = String::SkipBOM(text);
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_text = text;
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_current = text;
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}
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bool TryPeek(codepoint_t* outCodepoint) override
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{
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if (_current == nullptr)
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return false;
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codepoint_t codepoint = String::GetNextCodepoint(_current);
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*outCodepoint = codepoint;
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return true;
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}
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bool TryRead(codepoint_t* outCodepoint) override
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{
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if (_current == nullptr)
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return false;
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codepoint_t codepoint = String::GetNextCodepoint(_current, &_current);
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*outCodepoint = codepoint;
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if (codepoint == 0)
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{
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_current = nullptr;
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return false;
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}
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return true;
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}
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void Skip() override
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{
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codepoint_t codepoint;
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TryRead(&codepoint);
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}
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bool CanRead() const override
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{
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return _current != nullptr;
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}
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private:
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const utf8* _text;
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const utf8* _current;
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};
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