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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_ORCUS_DOM_TREE_HPP
#define INCLUDED_ORCUS_DOM_TREE_HPP
#include "types.hpp"
#include <vector>
#include <ostream>
#include <memory>
namespace orcus {
class xmlns_context;
namespace sax {
struct doctype_declaration;
}
namespace dom {
class document_tree;
enum class node_t : uint8_t
{
unset,
declaration,
element,
};
struct ORCUS_DLLPUBLIC entity_name
{
xmlns_id_t ns;
std::string_view name;
entity_name();
entity_name(std::string_view _name);
entity_name(xmlns_id_t _ns, std::string_view _name);
bool operator== (const entity_name& other) const;
bool operator!= (const entity_name& other) const;
};
class ORCUS_DLLPUBLIC const_node
{
friend class document_tree;
struct impl;
std::unique_ptr<impl> mp_impl;
const_node(std::unique_ptr<impl>&& _impl);
public:
const_node();
const_node(const const_node& other);
const_node(const_node&& other);
~const_node();
node_t type() const;
size_t child_count() const;
const_node child(size_t index) const;
entity_name name() const;
std::string_view attribute(const entity_name& name) const;
std::string_view attribute(std::string_view name) const;
size_t attribute_count() const;
const_node parent() const;
void swap(const_node& other);
const_node& operator= (const const_node& other);
bool operator== (const const_node& other) const;
bool operator!= (const const_node& other) const;
};
/**
* Ordinary DOM tree representing the content of an XML document.
*/
class ORCUS_DLLPUBLIC document_tree
{
struct impl;
std::unique_ptr<impl> mp_impl;
public:
document_tree(const document_tree&) = delete;
document_tree& operator= (const document_tree&) = delete;
document_tree(xmlns_context& cxt);
document_tree(document_tree&& other);
~document_tree();
/**
* Parse a given XML stream and build the content tree.
*
* @param strm XML stream.
*/
void load(std::string_view strm);
dom::const_node root() const;
dom::const_node declaration(std::string_view name) const;
/**
* Swap the content with another dom_tree instance.
*
* @param other the dom_tree instance to swap the content with.
*/
void swap(document_tree& other);
const sax::doctype_declaration* get_doctype() const;
void dump_compact(std::ostream& os) const;
};
} // namespace dom
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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