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/*
* Baltisot
* Copyright (C) 1999-2007 Nicolas "Pixel" Noble
*
* 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
*/
/* $Id: LuaXML.cc,v 1.6 2007-05-30 11:57:10 pixel Exp $ */
#include "tinyxml.h"
#include <Handle.h>
#include <BLua.h>
class LuaXML : public Base {
public:
static void ParseNode (lua_State *L,TiXmlNode* pNode) {
if (!pNode) return;
// resize stack if neccessary
luaL_checkstack(L, 5, "LuaXML_ParseNode : recursion too deep");
TiXmlElement* pElem = pNode->ToElement();
if (pElem) {
// element name
lua_pushstring(L,"name");
lua_pushstring(L,pElem->Value());
lua_settable(L,-3);
// parse attributes
TiXmlAttribute* pAttr = pElem->FirstAttribute();
if (pAttr) {
lua_pushstring(L,"attr");
lua_newtable(L);
for (;pAttr;pAttr = pAttr->Next()) {
lua_pushstring(L,pAttr->Name());
lua_pushstring(L,pAttr->Value());
lua_settable(L,-3);
}
lua_settable(L,-3);
}
}
// children
TiXmlNode *pChild = pNode->FirstChild();
if (pChild) {
int iChildCount = 0;
for(;pChild;pChild = pChild->NextSibling()) {
switch (pChild->Type()) {
case TiXmlNode::DOCUMENT: break;
case TiXmlNode::ELEMENT:
// normal element, parse recursive
lua_newtable(L);
ParseNode(L,pChild);
lua_rawseti(L,-2,++iChildCount);
break;
case TiXmlNode::COMMENT: break;
case TiXmlNode::TEXT:
// plaintext, push raw
lua_pushstring(L,pChild->Value());
lua_rawseti(L,-2,++iChildCount);
break;
case TiXmlNode::DECLARATION: break;
case TiXmlNode::UNKNOWN: break;
};
}
lua_pushstring(L,"n");
lua_pushnumber(L,iChildCount);
lua_settable(L,-3);
}
}
static int ParseFile (lua_State *L) {
const char* sFileName = luaL_checkstring(L,1);
TiXmlDocument doc(sFileName);
doc.LoadFile();
lua_newtable(L);
ParseNode(L,&doc);
return 1;
}
static int ParseString(lua_State *L) {
const char * xml_string = luaL_checkstring(L, 1);
TiXmlDocument doc;
doc.Parse(xml_string);
lua_newtable(L);
ParseNode(L, &doc);
return 1;
}
#define XMLBUFSIZ 81920
static int ParseHandle(lua_State *__L) {
Lua * L = Lua::find(__L);
Handle * h = (Handle *) LuaObject::getme(L, 1);
TiXmlDocument doc;
char buffer[XMLBUFSIZ + 1];
int l;
while (!h->IsClosed()) {
l = h->read(buffer, XMLBUFSIZ);
if (l) {
buffer[l] = 0;
doc.Parse(buffer);
}
}
lua_newtable(__L);
ParseNode(__L, &doc);
return 1;
}
};
static const luaL_reg xmllib[] = {
{ "LoadString", LuaXML::ParseString },
{ "LoadHandle", LuaXML::ParseHandle },
{ NULL, NULL }
};
int luaopen_xml(Lua *L) {
L->openlib("xml", xmllib, 0);
return 1;
}
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