src/XMLDocumentConstructor.h
author František Kučera <franta-hg@frantovo.cz>
Sat, 29 May 2021 22:12:19 +0200
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CBOR skeleton: remove YAML library, add CBOR one
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/**
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 * Relational pipes
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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 GNU General Public License as published by
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 * the Free Software Foundation, version 3 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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#pragma once
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#include <codecvt>
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#include <vector>
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#include <libxml++-2.6/libxml++/libxml++.h>
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#include <cbor.h>
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#include "XMLNameCodec.h"
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namespace relpipe {
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namespace in {
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namespace xmltable {
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class XMLDocumentConstructor {
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private:
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	std::istream* input = nullptr;
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	xmlpp::DomParser* parser = nullptr;
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	XMLNameCodec nameCodec;
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	std::string rootName = "cbor";
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	xmlpp::Element* current;
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	/**
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	 * Both CBOR and XML strings are in UTF-8.
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	 */
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	const char* c2x(char* value) { // FIXME: cbor type
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		return value ? (const char*) value : "";
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	}
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	const Glib::ustring c2xname(char* value) { // FIXME: cbor type
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		return nameCodec.encode(c2x(value));
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	}
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	xmlpp::Element* parentOrSelf(xmlpp::Element* current) {
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		return current->get_parent() == nullptr ? current : current->get_parent();
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	}
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public:
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	XMLDocumentConstructor(std::istream* input, xmlpp::DomParser* parser) : input(input), parser(parser) {
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		// cbor_item_t * root = cbor_new_definite_map(2);
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		// FIXME: initialize CBOR parser
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	}
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	virtual ~XMLDocumentConstructor() {
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		// FIXME: destroy CBOR parser
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	}
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	void setOption(const std::string& uri, const std::string& value) {
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		if (uri == "root-name") rootName = value;
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		else throw std::invalid_argument(std::string("Invalid parser option: „") + uri + "“ with value: „" + value + "“");
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	}
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	void process() {
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		current = parser->get_document()->create_root_node(rootName);
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	}
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};
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}
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}
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}