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/* main.cc
*
* Copyright (C) 2002 The libxml++ development team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "../testutilities.h"
#include <libxml++/libxml++.h>
#include <iostream>
#include <fstream>
#include <cstdlib>
void print_node(const xmlpp::Node* node, bool substitute_entities, unsigned int indentation = 0)
{
const Glib::ustring indent(indentation, ' ');
std::cout << std::endl; //Separate nodes by an empty line.
if (substitute_entities)
{
// Entities have been substituted. Print the text nodes.
const auto nodeText = dynamic_cast<const xmlpp::TextNode*>(node);
if (nodeText && !nodeText->is_white_space())
{
std::cout << indent << "text = " << CatchConvertError(nodeText->get_content()) << std::endl;
}
}
else
{
// Entities have not been substituted. Print the entity reference nodes.
const auto nodeEntityReference = dynamic_cast<const xmlpp::EntityReference*>(node);
if (nodeEntityReference)
{
std::cout << indent << "entity reference name = " << CatchConvertError(nodeEntityReference->get_name()) << std::endl;
std::cout << indent << " resolved text = " << CatchConvertError(nodeEntityReference->get_resolved_text()) << std::endl;
std::cout << indent << " original text = " << CatchConvertError(nodeEntityReference->get_original_text()) << std::endl;
}
} // end if (substitute_entities)
const auto nodeContent = dynamic_cast<const xmlpp::ContentNode*>(node);
if(!nodeContent)
{
//Recurse through child nodes:
for(const auto& child : node->get_children())
{
print_node(child, substitute_entities, indentation + 2); //recursive
}
}
}
int main(int argc, char* argv[])
{
// Set the global C++ locale to the user-specified locale. Then we can
// hopefully use std::cout with UTF-8, via Glib::ustring, without exceptions.
std::locale::global(std::locale(""));
std::string filepath;
if(argc > 1 )
filepath = argv[1]; //Allow the user to specify a different XML file to parse.
else
filepath = "example.xml";
// Parse first without, then with, entity substitution.
int return_code = EXIT_SUCCESS;
bool substitute_entities = false;
while (true)
{
if (substitute_entities)
std::cout << std::endl << "<<< With entity substitution >>>" << std::endl;
else
std::cout << std::endl << "<<< Without entity substitution >>>" << std::endl;
try
{
xmlpp::DomParser parser;
parser.set_validate();
parser.set_substitute_entities(substitute_entities);
// Two ways of reading the XML file.
if (substitute_entities)
parser.parse_file(filepath);
else
{
std::ifstream instream(filepath.c_str());
if (!instream)
throw xmlpp::internal_error("Could not open file " + filepath);
instream >> parser;
}
if(parser)
{
//Walk the tree:
const auto pNode = parser.get_document()->get_root_node(); //deleted by DomParser.
print_node(pNode, substitute_entities);
}
}
catch(const std::exception& ex)
{
std::cerr << "Exception caught: " << ex.what() << std::endl;
return_code = EXIT_FAILURE;
}
if (substitute_entities) break;
substitute_entities = true;
}
return return_code;
}
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