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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2026 Maarten L. Hekkelman
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "zeem.hpp"
#include <filesystem>
#include <fstream>
#include <iostream>
#include <memory>
#include <stdexcept>
#include <string>
#include <string_view>
namespace fs = std::filesystem;
int main()
{
//[ xml_validation_sample
/* Define an entity loader function */
auto loader = [](std::string_view base, std::string_view pubid, std::string_view sysid)
{
if (base == "." and pubid.empty() and fs::exists(sysid))
return std::make_unique<std::ifstream>(std::string{ sysid });
throw std::invalid_argument("Invalid arguments passed in loader");
};
/* Create document and set the entity loader */
zeem::document doc;
doc.set_entity_loader(loader);
/* Read a file */
std::ifstream is("sample.xml");
is >> doc;
using namespace zeem::literals;
/* Compare the doc with an in-memory constructed document, note that spaces are ignored */
if (doc == R"(<foo><bar>Hello, world!</bar></foo>)"_xml)
std::cout << "ok\n";
//]
return 0;
}
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