src/TextCodec.cpp
author František Kučera <franta-hg@frantovo.cz>
Fri, 31 Jan 2020 22:57:10 +0100
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ASan + install shared library
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/**
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 * Relational pipes (library)
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 * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the:
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 *  - GNU Lesser General Public License as published by the Free Software Foundation;
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 *    version 3 of the License or (at your option)
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 *  - GNU General Public License as published by the Free Software Foundation;
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 *    version 2 of the License.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#include <memory>
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#include "../include/relpipe/common/text/TextCodec.h"
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namespace relpipe {
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namespace common {
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namespace text {
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class TextCodec::TextCodecInternal {
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private:
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public:
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	static const std::string UTF8;
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	static const std::string DEFAULT;
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	Iconv* bytesToText;
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	Iconv* textToBytes;
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	//std::unique_ptr<Iconv> bytesToText;
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	//std::unique_ptr<Iconv> textToBytes;
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	bool sameEncoding = false;
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	TextCodecInternal(const std::string& encoding) {
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		// TODO: set sameEncoding = true if $LANG or current locale is same as encoding
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		bytesToText = new Iconv(encoding, DEFAULT);
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		textToBytes = new Iconv(DEFAULT, encoding);
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		//bytesToText.reset(new Iconv(encoding, DEFAULT));
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		//textToBytes.reset(new Iconv(DEFAULT, encoding));
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	}
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	virtual ~TextCodecInternal() {
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		delete bytesToText;
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		delete textToBytes;
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	}
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};
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const std::string TextCodec::TextCodecInternal::UTF8 = "UTF-8";
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const std::string TextCodec::TextCodecInternal::DEFAULT = "";
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TextCodec::TextCodec(const std::string& encoding) {
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	internal = new TextCodec::TextCodecInternal(encoding);
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}
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TextCodec::TextCodec() : TextCodec(TextCodec::TextCodecInternal::UTF8) {
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}
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TextCodec::~TextCodec() {
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	delete internal;
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}
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std::string TextCodec::fromBytes(std::string bytes) {
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	if (internal->sameEncoding) return bytes;
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	else return internal->bytesToText->convert(bytes);
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}
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std::string TextCodec::toBytes(std::string text) {
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	if (internal->sameEncoding) return text;
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	else return internal->textToBytes->convert(text);
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}
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}
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}
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}