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/*****************************************************************************
* xml.c: XML related functions
*****************************************************************************
* Copyright (C) 2010 Antoine Cellerier
* $Id$
*
* Authors: Antoine Cellerier <dionoea at videolan tod org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_xml.h>
#include "../vlc.h"
#include "../libs.h"
/*****************************************************************************
* XML
*****************************************************************************/
static int vlclua_xml_create_reader( lua_State * );
static const luaL_Reg vlclua_xml_reg[] = {
{ "create_reader", vlclua_xml_create_reader },
{ NULL, NULL }
};
static int vlclua_xml_create( lua_State *L )
{
lua_newuserdata( L, 0 );
if( luaL_newmetatable( L, "xml" ) )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_xml_reg );
lua_setfield( L, -2, "__index" );
}
lua_setmetatable( L, -2 );
return 1;
}
/*****************************************************************************
* XML Reader
*****************************************************************************/
static int vlclua_xml_reader_next_node( lua_State * );
static int vlclua_xml_reader_next_attr( lua_State * );
static int vlclua_xml_reader_node_empty( lua_State * );
static const luaL_Reg vlclua_xml_reader_reg[] = {
{ "next_node", vlclua_xml_reader_next_node },
{ "next_attr", vlclua_xml_reader_next_attr },
{ "node_empty", vlclua_xml_reader_node_empty },
{ NULL, NULL }
};
static int vlclua_xml_reader_delete( lua_State *L )
{
xml_reader_t *p_reader = *(xml_reader_t**)luaL_checkudata( L, 1, "xml_reader" );
xml_ReaderDelete( p_reader );
return 0;
}
static int vlclua_xml_create_reader( lua_State *L )
{
vlc_object_t *obj = vlclua_get_this( L );
stream_t *p_stream = *(stream_t **)luaL_checkudata( L, 2, "stream" );
xml_reader_t *p_reader = xml_ReaderCreate( obj, p_stream );
if( !p_reader )
return luaL_error( L, "XML reader creation failed." );
xml_reader_t **pp_reader = lua_newuserdata( L, sizeof( xml_reader_t * ) );
*pp_reader = p_reader;
if( luaL_newmetatable( L, "xml_reader" ) )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_xml_reader_reg );
lua_setfield( L, -2, "__index" );
lua_pushcfunction( L, vlclua_xml_reader_delete );
lua_setfield( L, -2, "__gc" );
}
lua_setmetatable( L, -2 );
return 1;
}
static int vlclua_xml_reader_next_node( lua_State *L )
{
xml_reader_t *p_reader = *(xml_reader_t**)luaL_checkudata( L, 1, "xml_reader" );
const char *psz_name;
int i_type = xml_ReaderNextNode( p_reader, &psz_name );
if( i_type <= 0 )
{
lua_pushinteger( L, 0 );
return 1;
}
lua_pushinteger( L, i_type );
lua_pushstring( L, psz_name );
return 2;
}
static int vlclua_xml_reader_next_attr( lua_State *L )
{
xml_reader_t *p_reader = *(xml_reader_t**)luaL_checkudata( L, 1, "xml_reader" );
const char *psz_value;
const char *psz_name = xml_ReaderNextAttr( p_reader, &psz_value );
if( !psz_name )
return 0;
lua_pushstring( L, psz_name );
lua_pushstring( L, psz_value );
return 2;
}
static int vlclua_xml_reader_node_empty( lua_State* L )
{
xml_reader_t *p_reader = *(xml_reader_t**)luaL_checkudata( L, 1, "xml_reader" );
lua_pushinteger( L, xml_ReaderIsEmptyElement( p_reader ) );
return 1;
}
void luaopen_xml( lua_State *L )
{
lua_pushcfunction( L, vlclua_xml_create );
lua_setfield( L, -2, "xml" );
}
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