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/*****************************************************************************
* strings.c
*****************************************************************************
* Copyright (C) 2007-2008 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea at videolan tod org>
* Pierre d'Herbemont <pdherbemont # videolan.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_plugin.h>
#include <vlc_meta.h>
#include <vlc_charset.h>
#include "../vlc.h"
#include "../libs.h"
/*****************************************************************************
* String transformations
*****************************************************************************/
static int vlclua_decode_uri( lua_State *L )
{
int i_top = lua_gettop( L );
int i;
for( i = 1; i <= i_top; i++ )
{
const char *psz_cstring = luaL_checkstring( L, 1 );
char *psz_string = vlc_uri_decode_duplicate( psz_cstring );
lua_remove( L, 1 ); /* remove elements to prevent being limited by
* the stack's size (this function will work with
* up to (stack size - 1) arguments */
lua_pushstring( L, psz_string );
free( psz_string );
}
return i_top;
}
static int vlclua_encode_uri_component( lua_State *L )
{
int i_top = lua_gettop( L );
int i;
for( i = 1; i <= i_top; i++ )
{
const char *psz_cstring = luaL_checkstring( L, 1 );
char *psz_string = vlc_uri_encode( psz_cstring );
lua_remove( L,1 );
lua_pushstring( L, psz_string );
free( psz_string );
}
return i_top;
}
static int vlclua_make_uri( lua_State *L )
{
const char *psz_input = luaL_checkstring( L, 1 );
const char *psz_scheme = luaL_optstring( L, 2, NULL );
if( strstr( psz_input, "://" ) == NULL )
{
char *psz_uri = vlc_path2uri( psz_input, psz_scheme );
lua_pushstring( L, psz_uri );
free( psz_uri );
}
else
lua_pushstring( L, psz_input );
return 1;
}
static int vlclua_make_path( lua_State *L )
{
const char *psz_input = luaL_checkstring( L, 1 );
char *psz_path = vlc_uri2path( psz_input);
lua_pushstring( L, psz_path );
free( psz_path );
return 1;
}
int vlclua_url_parse( lua_State *L )
{
const char *psz_url = luaL_checkstring( L, 1 );
vlc_url_t url;
vlc_UrlParse( &url, psz_url );
lua_newtable( L );
lua_pushstring( L, url.psz_protocol );
lua_setfield( L, -2, "protocol" );
lua_pushstring( L, url.psz_username );
lua_setfield( L, -2, "username" );
lua_pushstring( L, url.psz_password );
lua_setfield( L, -2, "password" );
lua_pushstring( L, url.psz_host );
lua_setfield( L, -2, "host" );
lua_pushinteger( L, url.i_port );
lua_setfield( L, -2, "port" );
lua_pushstring( L, url.psz_path );
lua_setfield( L, -2, "path" );
lua_pushstring( L, url.psz_option );
lua_setfield( L, -2, "option" );
vlc_UrlClean( &url );
return 1;
}
static int vlclua_resolve_xml_special_chars( lua_State *L )
{
int i_top = lua_gettop( L );
int i;
for( i = 1; i <= i_top; i++ )
{
const char *psz_cstring = luaL_checkstring( L, 1 );
char *psz_string = strdup( psz_cstring );
lua_remove( L, 1 ); /* remove elements to prevent being limited by
* the stack's size (this function will work with
* up to (stack size - 1) arguments */
vlc_xml_decode( psz_string );
lua_pushstring( L, psz_string );
free( psz_string );
}
return i_top;
}
static int vlclua_convert_xml_special_chars( lua_State *L )
{
int i_top = lua_gettop( L );
int i;
for( i = 1; i <= i_top; i++ )
{
char *psz_string = vlc_xml_encode( luaL_checkstring(L,1) );
lua_remove( L, 1 );
lua_pushstring( L, psz_string );
free( psz_string );
}
return i_top;
}
static int vlclua_from_charset( lua_State *L )
{
if( lua_gettop( L ) < 2 ) return vlclua_error( L );
size_t i_in_bytes;
const char *psz_input = luaL_checklstring( L, 2, &i_in_bytes );
if( i_in_bytes == 0 ) return vlclua_error( L );
const char *psz_charset = luaL_checkstring( L, 1 );
char *psz_output = FromCharset( psz_charset, psz_input, i_in_bytes );
lua_pushstring( L, psz_output ? psz_output : "" );
free( psz_output );
return 1;
}
/*****************************************************************************
*
*****************************************************************************/
static const luaL_Reg vlclua_strings_reg[] = {
{ "decode_uri", vlclua_decode_uri },
{ "encode_uri_component", vlclua_encode_uri_component },
{ "make_uri", vlclua_make_uri },
{ "make_path", vlclua_make_path },
{ "url_parse", vlclua_url_parse },
{ "resolve_xml_special_chars", vlclua_resolve_xml_special_chars },
{ "convert_xml_special_chars", vlclua_convert_xml_special_chars },
{ "from_charset", vlclua_from_charset },
{ NULL, NULL }
};
void luaopen_strings( lua_State *L )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_strings_reg );
lua_setfield( L, -2, "strings" );
}
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