xml_root_element.h

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/*  Copyright (c) SILVERCODERS Ltd, http://silvercoders.com                                                                                  */
/*  Project homepage: https://github.com/docwire/docwire                                                                                     */
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/*  SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-DocWire-Commercial                                                                  */
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#ifndef DOCWIRE_XML_ROOT_ELEMENT_H
#define DOCWIRE_XML_ROOT_ELEMENT_H
 
#include "xml_children.h"
#include "xml_node_ref.h"
#include "make_error.h"
#include "error_tags.h"
 
namespace docwire::xml
{
 
template <safety_policy safety_level>
node_ref<safety_level> root_element(reader<safety_level>& reader)
{
    for (auto node: children(reader))
    {
        if (node.type() == node_type::element)
            return node;
    }
    throw DOCWIRE_MAKE_ERROR("No root element found", docwire::errors::uninterpretable_data{});
}
 
}
 
#endif // DOCWIRE_XML_ROOT_ELEMENT_H