--- a/src/XMLTableCommand.h Sun May 14 00:21:14 2023 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,140 +0,0 @@
-/**
- * Relational pipes
- * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#pragma once
-
-#include <cstdlib>
-#include <iostream>
-#include <string>
-#include <sstream>
-#include <vector>
-#include <algorithm>
-#include <exception>
-#include <regex>
-
-#include <libxml++-2.6/libxml++/libxml++.h>
-
-#include <relpipe/writer/typedefs.h>
-
-#include "Configuration.h"
-#include "XMLDocumentConstructor.h"
-
-namespace relpipe {
-namespace in {
-namespace xmltable {
-
-using namespace relpipe::writer;
-
-class XMLCommand {
-private:
- std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
-
- string_t formatRawXML(string_t rawXML) {
- std::wregex pattern(L"^(<\\?xml version=\"1.0\" encoding=\"UTF-8\"\\?>\\s*)+|\n$");
- // libxml sometimes returns doubled XML declaration (probably a bug), see:
- // --relation ini --records '/' --attribute 'xml' string '.' --mode raw-xml # (but not for --records '//*')
- // so we remove all of them and also trailing line ends (if any).
- return std::regex_replace(rawXML, pattern, L"");
- }
-
- void importNode(xmlpp::Node* parent, xmlpp::Node* child, AttributeRecipe attributeRecipe) {
- if (dynamic_cast<xmlpp::AttributeNode*> (child)) parent->add_child_with_new_ns(
- convertor.to_bytes(attributeRecipe.rawXmlAttributeWrapper.name),
- convertor.to_bytes(attributeRecipe.rawXmlAttributeWrapper.uri),
- convertor.to_bytes(attributeRecipe.rawXmlAttributeWrapper.prefix))->import_node(child);
- else parent->import_node(child, true);
- }
-
- void importNode(xmlpp::Document* document, xmlpp::Node* child, AttributeRecipe attributeRecipe) {
- if (dynamic_cast<xmlpp::AttributeNode*> (child)) document->create_root_node(
- convertor.to_bytes(attributeRecipe.rawXmlAttributeWrapper.name),
- convertor.to_bytes(attributeRecipe.rawXmlAttributeWrapper.uri),
- convertor.to_bytes(attributeRecipe.rawXmlAttributeWrapper.prefix))->import_node(child);
- else document->create_root_node_by_import(child, true);
- }
-
- string_t toRawXML(xmlpp::Node* parent, AttributeRecipe attributeRecipe, xmlpp::Node::PrefixNsMap ns) {
- xmlpp::Document d;
- xmlpp::NodeSet nodes = parent->find(convertor.to_bytes(attributeRecipe.xpath), ns);
-
- if (attributeRecipe.rawXmlNodeListWrapper.name.size()) {
- d.create_root_node(
- convertor.to_bytes(attributeRecipe.rawXmlNodeListWrapper.name),
- convertor.to_bytes(attributeRecipe.rawXmlNodeListWrapper.uri),
- convertor.to_bytes(attributeRecipe.rawXmlNodeListWrapper.prefix));
- for (xmlpp::Node* node : nodes) importNode(d.get_root_node(), node, attributeRecipe);
- } else {
- if (nodes.size() == 1) importNode(&d, nodes[0], attributeRecipe);
- else if (nodes.size() > 1) throw std::invalid_argument("Multiple nodes found where only one was expected. Use nodelist wrapper."); // TODO: better relpipe exception
- else return L""; // TODO: null
- }
- return formatRawXML(convertor.from_bytes(d.write_to_string()));
- }
-
-public:
-
- void process(std::istream& input, std::ostream& output, Configuration& configuration) {
- std::shared_ptr<RelationalWriter> writer(Factory::create(output));
-
- xmlpp::DomParser parser;
- XMLDocumentConstructor documentConstructor(&input, &parser);
- for (ParserOptionRecipe o : configuration.parserOptions) documentConstructor.setOption(convertor.to_bytes(o.uri), convertor.to_bytes(o.value));
- documentConstructor.process();
- if (configuration.xinclude) parser.get_document()->process_xinclude(true);
- xmlpp::Element* root = parser.get_document()->get_root_node();
-
- xmlpp::Node::PrefixNsMap ns;
- for (int i = 0; i < configuration.namespaceMappings.size(); i++) {
- std::string prefix = convertor.to_bytes(configuration.namespaceMappings[i]);
- std::string uri = convertor.to_bytes(configuration.namespaceMappings[++i]);
- ns[prefix] = uri;
- }
-
- for (const RelationConfiguration& r : configuration.relationConfigurations) {
- std::vector<relpipe::writer::AttributeMetadata> attributesMetadata;
- for (AttributeRecipe a : r.attributes) attributesMetadata.push_back(AttributeMetadata{a.name, a.type});
- relpipe::writer::string_t name = r.nameIsXPath ? convertor.from_bytes(root->eval_to_string(convertor.to_bytes(r.relation), ns)) : r.relation;
- writer->startRelation(name, attributesMetadata, true);
- for (xmlpp::Node* n : root->find(convertor.to_bytes(r.xpath), ns)) {
- for (AttributeRecipe a : r.attributes) {
- // TODO: convert to bytes only once
- std::string attributeXpath = convertor.to_bytes(a.xpath);
- if (a.mode == Mode::STRING) {
- writer->writeAttribute(convertor.from_bytes(n->eval_to_string(attributeXpath, ns)));
- } else if (a.mode == Mode::BOOLEAN) {
- writer->writeAttribute(n->eval_to_boolean(attributeXpath, ns) ? L"true" : L"false");
- } else if (a.mode == Mode::LINE_NUMBER) {
- xmlpp::NodeSet attributeNodes = n->find(attributeXpath, ns);
- string_t line = attributeNodes.size() ? std::to_wstring(attributeNodes[0]->get_line()) : L""; // TODO: null
- writer->writeAttribute(line);
- } else if (a.mode == Mode::XPATH) {
- xmlpp::NodeSet attributeNodes = n->find(attributeXpath, ns);
- string_t line = attributeNodes.size() ? convertor.from_bytes(attributeNodes[0]->get_path()) : L""; // TODO: null
- writer->writeAttribute(line);
- } else if (a.mode == Mode::RAW_XML) {
- writer->writeAttribute(toRawXML(n, a, ns));
- } else {
- throw logic_error("Unsupported mode."); // should never happer, TODO: better relpipe exception
- }
- }
- }
- }
- }
-};
-
-}
-}
-}