124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
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/***************************************************************************
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source::worx xtree
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Copyright © 2024-2025 c.holzheuer
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christoph.holzheuer@gmail.com
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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; either version 2 of the License, or
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(at your option) any later version.
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***************************************************************************/
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#ifndef ZNODE_FACTORY_H
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#define ZNODE_FACTORY_H
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#include <pugixml.hpp>
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#include <znode.h>
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class xtree;
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/*
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nodes: nackt also ungekaspselt?
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-> children()
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-> attributes()
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attributes: ja was seid ihr denn? als string gelesen, als string geschrieben, aber dazwischen?
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-> std::variant<bool...> mit enum type{t_bool = 0 ...};
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-> conversion mit boost::lexical_cast<> bzw. std::to_string() und std::stoi(), std::stod()
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-> beim parsen konvertieren? contains '.'? is_number?
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-> betrifft tag_values und tag_attributes
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-> vorher definieren? attribute 'voltage' == double, oder gar mehr: unit V, double, range
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-> über xs:double?
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model: muss ich wirklich jeden attibute node einzeln angeben?
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*/
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namespace znode
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{
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template<class str_t>
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class znode_factory
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{
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public:
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using str_cref = const str_t&;
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using zshared_node = std::shared_ptr<zbasic_node<str_t>>;
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znode_factory() = default;
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virtual ~znode_factory() = default;
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zshared_node load_tree( const std::string& filename )
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{
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pugi::xml_document tree_document;
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// load document
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pugi::xml_parse_result result = tree_document.load_file( filename.c_str() );
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if( !result )
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{
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throw XQException( "znode_factory::load_tree: parse error: ", result.description() );
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}
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//MemberFunc func = &znode_factory::process_node;
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//xtreewalker<znode_factory, MemberFunc> parser(this,func);
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//_current_depth = -1;
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//tree_document.traverse(parser);
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//zbasic_node<str_t>* root_node = new zbasic_node<str_t>*("root!");
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zshared_node root_node = zbasic_node<str_t>::make_node("root!");
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//T root_node = T::make_node( "root!" );
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// prepare root == model !?
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pugi::xml_node tmp_node = tree_document.first_child();
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while(tmp_node)
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{
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//qDebug() << " --- znode_factory building: " << tmp_node.name();
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create_node( tmp_node, root_node );
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tmp_node = tmp_node.next_sibling();
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}
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//znode::zmeas_para<QString>* xxx = new znode::zmeas_para<QString>("mookoo!");
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//xxx->apply_command(42);
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// _root_node->apply_command(42);
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//size_t idx = _root_node->add_child( xxx);
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//qDebug() << " jo: " << _root_node->child(idx)->tag_name();
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return root_node;
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}
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protected:
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void create_node(const pugi::xml_node& xml_node, zshared_node parent)
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{
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//T* new_node = new T( node.name(), node.child_value(), parent );
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//parent->add_child( new_node );
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//zbasic_node<str_t>* new_node = new zbasic_node<str_t>( node.name(), node.child_value(), parent );
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zshared_node new_node = zbasic_node<str_t>::make_node( xml_node.name(), xml_node.child_value(), parent );
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parent->add_child( new_node );
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if( !xml_node.attributes().empty() )
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{
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for (pugi::xml_attribute attr: xml_node.attributes())
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new_node->set_attribute( attr.name(), attr.value() );
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}
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if( !xml_node.children().empty() && std::string( xml_node.child_value() ).empty() )
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{
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for (pugi::xml_node child : xml_node.children())
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create_node( child, new_node );
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}
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}
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};
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}
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#endif // ZNODE_FACTORY_H
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