axmol/cocos2dx/platform/uphone/CCFileUtils.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

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#include <string>
#include <stack>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xmlmemory.h>
#include <tg3.h>
#include "CCFileUtils.h"
#include "Cocos2dDefine.h"
namespace   cocos2d {

typedef std::pair<std::string, void*> Pair;
typedef enum 
{
	SAX_NONE = 0,
	SAX_KEY,
	SAX_DICT,
	SAX_INT,
	SAX_REAL
}CCSAXState;

class CCDictMaker
{
public:
	CCDictionary *m_pRootDict;
	CCDictionary *m_pCurDict;
	std::stack<CCDictionary*> m_tDictStack;
	std::string m_sCurKey;///< parsed key
	CCSAXState m_tState;
public:
	CCDictMaker()
	{
		m_pRootDict = NULL;
		m_pCurDict = NULL;
		m_tState = SAX_NONE;
	}
	~CCDictMaker()
	{
	}
	CCDictionary *dictionaryWithContentsOfFile(const char *pFileName)
	{
		FILE *fp;
		if( !(fp = fopen(pFileName, "r")) )
		{
			return NULL;
		}
		fseek(fp,0,SEEK_END);
		int size = ftell(fp);
		fseek(fp,0,SEEK_SET);
		char *buffer = new char[size];
		fread(buffer,sizeof(char),size,fp);
		fclose(fp);
		/*
		* this initialize the library and check potential ABI mismatches
		* between the version it was compiled for and the actual shared
		* library used.
		*/
		LIBXML_TEST_VERSION
		xmlSAXHandler saxHandler;
		memset( &saxHandler, 0, sizeof(saxHandler) );
		// Using xmlSAXVersion( &saxHandler, 2 ) generate crash as it sets plenty of other pointers...
		saxHandler.initialized = XML_SAX2_MAGIC;  // so we do this to force parsing as SAX2.
		saxHandler.startElement = &startElement;
		saxHandler.endElement = &endElement;
		saxHandler.characters = &characters;

		int result = xmlSAXUserParseMemory( &saxHandler, this, buffer, size );
		if ( result != 0 )
		{
			return NULL;
		}
		/*
		* Cleanup function for the XML library.
		*/
		xmlCleanupParser();
		/*
		* this is to debug memory for regression tests
		*/
		xmlMemoryDump();
		delete []buffer;
		return m_pRootDict;
	}
};
void startElement(void *ctx, const xmlChar *name, const xmlChar **atts)
{
	CCDictMaker *pMaker = static_cast<CCDictMaker*>(ctx);
	std::string sName((char*)name);
	if( sName == "dict" )
	{
		CCDictionary *pNewDict = new CCDictionary();
		if(! pMaker->m_pRootDict)
		{
			pMaker->m_pRootDict = pNewDict;
		}
		else
		{
			NSAssert(pMaker->m_pCurDict && !pMaker->m_sCurKey.empty(), "");
			pMaker->m_pCurDict->insert( Pair(pMaker->m_sCurKey, pNewDict) );
			pMaker->m_sCurKey.clear();
		}
		pMaker->m_pCurDict = pNewDict;
		pMaker->m_tDictStack.push(pMaker->m_pCurDict);
		pMaker->m_tState = SAX_DICT;
	}
	else if(sName == "key")
	{
		pMaker->m_tState = SAX_KEY;
	}
	else if(sName == "integer")
	{
		pMaker->m_tState = SAX_INT;
	}
	else if(sName == "real")
	{
		pMaker->m_tState = SAX_REAL;
	}
	else
	{
		pMaker->m_tState = SAX_NONE;
	}
}
void endElement(void *ctx, const xmlChar *name)
{
	CCDictMaker * pMaker = static_cast<CCDictMaker*>(ctx);
	std::string sName((char*)name);
	if( sName == "dict" )
	{
		pMaker->m_tDictStack.pop();
		if ( !pMaker->m_tDictStack.empty() )
		{
			pMaker->m_pCurDict = static_cast<CCDictionary*>(pMaker->m_tDictStack.top());
		}
	}
}
void characters(void *ctx, const xmlChar *ch, int len)
{
	CCDictMaker * pMaker = static_cast<CCDictMaker*>(ctx);
	std::string *pText = new std::string((char*)ch,0,len);
	switch(pMaker->m_tState)
	{
	case SAX_KEY:
		pMaker->m_sCurKey = *pText;
		break;
	case SAX_INT:
	case SAX_REAL:
		{
			NSAssert(!pMaker->m_sCurKey.empty(), "not found key : <integet/real>");
			pMaker->m_pCurDict->insert( Pair(pMaker->m_sCurKey, pText) );
			break;
		}
	}
}
char* CCFileUtils::fullPathFromRelativePath(const char *pszRelativePath)
{
    // get the user data path and append relativepath to it
    const TUChar *pszTmp = EOS_GetSpecialPath(EOS_FILE_SPECIAL_PATH_USER_DATA);
    char *pszUserPath = new char[TUString::StrLen(pszTmp) + 1];
    TUString::StrUnicodeToStrUtf8((Char*)pszUserPath, pszTmp);
    char *pszRet;

#ifndef _TRANZDA_VM_
    char *pszDriver = "";
#else
    char *pszDriver = "D:/Work7";
#endif

    int nLen = 0;
    if (strlen(pszRelativePath) > 0 && pszRelativePath[0] == '/')
    {
        nLen = strlen(pszRelativePath) + strlen(pszDriver) + 1;
        pszRet = new char[nLen];
        memset(pszRet, 0, nLen);
        strncat(pszRet, pszDriver, strlen(pszDriver));
        strncat(pszRet, pszRelativePath, strlen(pszRelativePath));
    }
    else
    {
        nLen = strlen(pszRelativePath) + strlen(pszDriver) + strlen(pszUserPath) + 1;
        pszRet = new char[nLen];
        memset(pszRet, 0, nLen);
        strncat(pszRet, pszDriver, strlen(pszDriver));
        strncat(pszRet, pszUserPath, strlen(pszUserPath));
        strncat(pszRet, pszRelativePath, strlen(pszRelativePath));
    }

	return pszRet;
}

CCDictionary *CCFileUtils::dictionaryWithContentsOfFile(const char *pFileName)
{
	CCDictMaker tMaker;
	return tMaker.dictionaryWithContentsOfFile(pFileName);
}
}//namespace   cocos2d