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/*
Copyright (C) 2012 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __XML_H
#define __XML_H
/* xml++.h
* libxml++ and this file are copyright (C) 2000 by Ari Johnson, and
* are covered by the GNU Lesser General Public License, which should be
* included with libxml++ as the file COPYING.
* Modified for Ardour and released under the same terms.
*/
#include <string>
#include <vector>
#include <cstdio>
#include <cstdarg>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <boost/shared_ptr.hpp>
#include "pbd/libpbd_visibility.h"
class XMLTree;
class XMLNode;
class XMLProperty;
typedef std::vector<XMLNode *> XMLNodeList;
typedef std::vector<boost::shared_ptr<XMLNode> > XMLSharedNodeList;
typedef XMLNodeList::iterator XMLNodeIterator;
typedef XMLNodeList::const_iterator XMLNodeConstIterator;
typedef std::vector<XMLProperty*> XMLPropertyList;
typedef XMLPropertyList::iterator XMLPropertyIterator;
typedef XMLPropertyList::const_iterator XMLPropertyConstIterator;
class LIBPBD_API XMLTree {
public:
XMLTree();
XMLTree(const std::string& fn, bool validate = false);
XMLTree(const XMLTree*);
~XMLTree();
XMLNode* root() const { return _root; }
XMLNode* set_root(XMLNode* n) { return _root = n; }
const std::string& filename() const { return _filename; }
const std::string& set_filename(const std::string& fn) { return _filename = fn; }
int compression() const { return _compression; }
int set_compression(int);
bool read() { return read_internal(false); }
bool read(const std::string& fn) { set_filename(fn); return read_internal(false); }
bool read_and_validate() { return read_internal(true); }
bool read_and_validate(const std::string& fn) { set_filename(fn); return read_internal(true); }
bool read_buffer(const std::string&, bool to_tree_doc = false);
bool write() const;
bool write(const std::string& fn) { set_filename(fn); return write(); }
void debug (FILE*) const;
const std::string& write_buffer() const;
boost::shared_ptr<XMLSharedNodeList> find(const std::string xpath, XMLNode* = 0) const;
private:
bool read_internal(bool validate);
std::string _filename;
XMLNode* _root;
xmlDocPtr _doc;
int _compression;
};
class LIBPBD_API XMLNode {
public:
XMLNode(const std::string& name);
XMLNode(const std::string& name, const std::string& content);
XMLNode(const XMLNode& other);
~XMLNode();
XMLNode& operator= (const XMLNode& other);
bool operator== (const XMLNode& other) const;
bool operator!= (const XMLNode& other) const;
const std::string& name() const { return _name; }
bool is_content() const { return _is_content; }
const std::string& content() const { return _content; }
const std::string& set_content(const std::string&);
XMLNode* add_content(const std::string& s = std::string());
const XMLNodeList& children(const std::string& str = std::string()) const;
XMLNode* child(const char*) const;
XMLNode* add_child(const char *);
XMLNode* add_child_copy(const XMLNode&);
void add_child_nocopy(XMLNode&);
std::string attribute_value();
const XMLPropertyList& properties() const { return _proplist; }
XMLProperty const * property(const char*) const;
XMLProperty const * property(const std::string&) const;
XMLProperty * property(const char*);
XMLProperty * property(const std::string&);
bool has_property_with_value (const std::string&, const std::string&) const;
XMLProperty* add_property(const char* name, const std::string& value);
XMLProperty* add_property(const char* name, const char* value = "");
XMLProperty* add_property(const char* name, const long value);
void remove_property(const std::string&);
void remove_property_recursively(const std::string&);
/** Remove all nodes with the name passed to remove_nodes */
void remove_nodes(const std::string&);
/** Remove and delete all nodes with the name passed to remove_nodes */
void remove_nodes_and_delete(const std::string&);
/** Remove and delete all nodes with property prop matching val */
void remove_nodes_and_delete(const std::string& propname, const std::string& val);
void dump (std::ostream &, std::string p = "") const;
private:
std::string _name;
bool _is_content;
std::string _content;
XMLNodeList _children;
XMLPropertyList _proplist;
mutable XMLNodeList _selected_children;
void clear_lists ();
};
class LIBPBD_API XMLProperty {
public:
XMLProperty(const std::string& n, const std::string& v = std::string());
~XMLProperty();
const std::string& name() const { return _name; }
const std::string& value() const { return _value; }
const std::string& set_value(const std::string& v) { return _value = v; }
private:
std::string _name;
std::string _value;
};
class LIBPBD_API XMLException: public std::exception {
public:
explicit XMLException(const std::string msg) : _message(msg) {}
virtual ~XMLException() throw() {}
virtual const char* what() const throw() { return _message.c_str(); }
private:
std::string _message;
};
#endif /* __XML_H */
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