mxoemu/Dependencies/Sockets/XmlNode.cpp
2010-08-28 06:30:32 +02:00

357 lines
6.9 KiB
C++

/**
** \file XmlNode.cpp
** \date 2008-02-09
** \author grymse@alhem.net
**/
/*
Copyright (C) 2008-2010 Anders Hedstrom
This library is made available under the terms of the GNU GPL, with
the additional exemption that compiling, linking, and/or using OpenSSL
is allowed.
If you would like to use this library in a closed-source application,
a separate license agreement is available. For information about
the closed-source license agreement for the C++ sockets library,
please visit http://www.alhem.net/Sockets/license.html and/or
email license@alhem.net.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "XmlNode.h"
#include "XmlDocument.h"
#include "XmlException.h"
#include "Utility.h"
#ifdef ENABLE_XML
#ifdef SOCKETS_NAMESPACE
namespace SOCKETS_NAMESPACE {
#endif
namespace Xml {
XmlNode::XmlNode(XmlDocument& doc)
: m_doc(doc)
, m_current( GetRootElement() )
{
}
XmlNode::XmlNode(XmlDocument& doc, const std::string& nodepath)
: m_doc(doc)
, m_current( GetRootElement() )
{
xmlNodePtr p = GetFirstElement( nodepath );
SetCurrent( p );
}
XmlNode::XmlNode(const XmlNode& node, const std::string& nodepath)
: m_doc( node.GetDocument() )
, m_current( node )
{
xmlNodePtr p = GetFirstElement( node, nodepath );
SetCurrent( p );
}
XmlNode::XmlNode(XmlDocument& doc, xmlNodePtr ptr)
: m_doc(doc)
, m_current( ptr )
{
}
XmlNode::XmlNode(xmlDocPtr doc, xmlNodePtr ptr)
: m_doc(doc)
, m_current( ptr )
{
}
XmlNode::~XmlNode()
{
}
xmlNodePtr XmlNode::GetRootElement() const
{
m_current = xmlDocGetRootElement(m_doc);
return m_current;
}
std::string XmlNode::GetProperty(const std::string& name) const
{
xmlChar *p = m_current ? xmlGetProp(m_current, (const xmlChar *) name.c_str() ) : NULL;
if (!p)
{
throw XmlException( "Property '" + name + "' not found in node: " + GetNodeName() );
}
std::string str = (char *)p;
xmlFree(p);
return Utility::FromUtf8(str);
}
bool XmlNode::PropertyExists(const std::string& name) const
{
xmlChar *p = m_current ? xmlGetProp(m_current, (const xmlChar *) name.c_str() ) : NULL;
if (!p)
{
return false;
}
xmlFree(p);
return true;
}
xmlNodePtr XmlNode::GetChildrenNode() const
{
m_current = m_current ? m_current -> xmlChildrenNode : NULL;
return m_current;
}
xmlNodePtr XmlNode::GetNextNode() const
{
do
{
m_current = m_current ? m_current -> next : NULL;
} while (m_current && xmlIsBlankNode( m_current ));
return m_current;
}
const std::string& XmlNode::GetNodeName() const
{
if (m_current)
{
m_current_name = Utility::FromUtf8((char *)m_current -> name);
}
else
{
m_current_name = "";
}
return m_current_name;
}
const std::string& XmlNode::GetContent() const
{
m_content = "";
if (m_current)
{
xmlNodePtr p = m_current;
xmlNodePtr p2 = GetChildrenNode();
if (p2 && p2 -> content)
{
m_content = Utility::FromUtf8((char *)p2 -> content);
}
SetCurrent(p);
}
return m_content;
}
xmlNsPtr XmlNode::GetNodeNs() const
{
if (m_current)
return m_current -> ns;
return NULL;
}
const std::string& XmlNode::GetNodeNsPrefix() const
{
if (m_current && m_current -> ns && m_current -> ns -> prefix)
{
m_ns_prefix = Utility::FromUtf8((char *)m_current -> ns -> prefix);
}
else
{
m_ns_prefix = "";
}
return m_ns_prefix;
}
const std::string& XmlNode::GetNodeNsHref() const
{
if (m_current && m_current -> ns && m_current -> ns -> href)
{
m_ns_href = Utility::FromUtf8((char *)m_current -> ns -> href);
}
else
{
m_ns_href = "";
}
return m_ns_href;
}
xmlNodePtr XmlNode::GetFirstElement(const std::string& name) const
{
if (m_lookup_name.empty())
m_lookup_name = name;
GetRootElement();
xmlNodePtr p = GetChildrenNode();
while (p)
{
if (name == GetNodeName())
{
return p;
}
p = GetNextNode();
}
return NULL;
}
xmlNodePtr XmlNode::GetFirstElement(xmlNodePtr base,const std::string& name) const
{
if (m_lookup_name.empty())
m_lookup_name = name;
SetCurrent(base);
xmlNodePtr p = GetChildrenNode();
while (p)
{
if (name == GetNodeName())
{
return p;
}
p = GetNextNode();
}
return NULL;
}
xmlNodePtr XmlNode::GetNextElement(xmlNodePtr p,const std::string& name) const
{
SetCurrent(p);
p = GetNextNode();
while (p)
{
if (name == GetNodeName())
{
return p;
}
p = GetNextNode();
}
return NULL;
}
XmlNode::operator xmlNodePtr() const
{
return m_current;
}
XmlNode XmlNode::operator[](const std::string& name) const
{
xmlNodePtr p0 = m_current;
xmlNodePtr p = GetFirstElement( m_current, name );
SetCurrent( p0 );
if (p)
return XmlNode( m_doc, p );
throw XmlException("Didn't find node: " + name);
}
bool XmlNode::Exists(const std::string& name) const
{
xmlNodePtr p0 = m_current;
xmlNodePtr p = GetFirstElement( m_current, name );
SetCurrent( p0 );
if (p)
return true;
return false;
}
void XmlNode::operator++() const
{
GetNextNode();
while (m_current)
{
if (m_lookup_name == GetNodeName())
{
return;
}
GetNextNode();
}
}
std::map<std::string, std::string> XmlNode::GetNsMap() const
{
xmlNsPtr *p = xmlGetNsList(m_doc, m_current);
std::map<std::string, std::string> vec;
int i = 0;
while (p[i])
{
std::string href = Utility::FromUtf8((char *)p[i] -> href);
std::string prefix = p[i] -> prefix ? Utility::FromUtf8((char *)p[i] -> prefix) : "";
vec[prefix] = href;
++i;
}
return vec;
}
std::map<std::string, std::string> XmlNode::GetNsMapRe() const
{
xmlNsPtr *p = xmlGetNsList(m_doc, m_current);
std::map<std::string, std::string> vec;
int i = 0;
while (p[i])
{
std::string href = Utility::FromUtf8((char *)p[i] -> href);
std::string prefix = p[i] -> prefix ? Utility::FromUtf8((char *)p[i] -> prefix) : "";
vec[href] = prefix;
if (!p[i] -> next)
break;
++i;
}
return vec;
}
const std::string XmlNode::FindProperty(const std::string& propname, bool climb) const
{
while (m_current)
{
if (PropertyExists(propname))
{
return GetProperty(propname);
}
if (!climb)
{
break;
}
m_current = m_current -> parent;
}
return "";
}
}
#ifdef SOCKETS_NAMESPACE
}
#endif
#endif // ENABLE_XML