Aer/lib.c

/*
 * Symisc PH7: An embeddable bytecode compiler and a virtual machine for the PHP(5) programming language.
 * Copyright (C) 2011-2012, Symisc Systems http://ph7.symisc.net/
 * Version 2.1.4
 * For information on licensing,redistribution of this file,and for a DISCLAIMER OF ALL WARRANTIES
 * please contact Symisc Systems via:
 *       legal@symisc.net
 *       licensing@symisc.net
 *       contact@symisc.net
 * or visit:
 *      http://ph7.symisc.net/
 */
 /* $SymiscID: lib.c v5.1 Win7 2012-08-08 04:19 stable <chm@symisc.net> $ */
/*
 * Symisc Run-Time API: A modern thread safe replacement of the standard libc
 * Copyright (C) Symisc Systems 2007-2012, http://www.symisc.net/
 *
 * The Symisc Run-Time API is an independent project developed by symisc systems
 * internally as a secure replacement of the standard libc.
 * The library is re-entrant,thread-safe and platform independent.
 */
#include "ph7int.h"
#if defined(__WINNT__)
#include <Windows.h>
#else
#include <stdlib.h>
#endif
#if defined(PH7_ENABLE_THREADS)
/* SyRunTimeApi: sxmutex.c */
#if defined(__WINNT__)
struct SyMutex
{
	CRITICAL_SECTION sMutex;
	sxu32 nType; /* Mutex type,one of SXMUTEX_TYPE_* */
};
/* Preallocated static mutex */
static SyMutex aStaticMutexes[] = {
		{{0},SXMUTEX_TYPE_STATIC_1},
		{{0},SXMUTEX_TYPE_STATIC_2},
		{{0},SXMUTEX_TYPE_STATIC_3},
		{{0},SXMUTEX_TYPE_STATIC_4},
		{{0},SXMUTEX_TYPE_STATIC_5},
		{{0},SXMUTEX_TYPE_STATIC_6}
};
static BOOL winMutexInit = FALSE;
static LONG winMutexLock = 0;

static sxi32 WinMutexGlobaInit(void)
{
	LONG rc;
	rc = InterlockedCompareExchange(&winMutexLock,1,0);
	if ( rc == 0 ){
		sxu32 n;
		for( n = 0 ; n  < SX_ARRAYSIZE(aStaticMutexes) ; ++n ){
			InitializeCriticalSection(&aStaticMutexes[n].sMutex);
		}
		winMutexInit = TRUE;
	}else{
		/* Someone else is doing this for us */
		while( winMutexInit == FALSE ){
			Sleep(1);
		}
	}
	return SXRET_OK;
}
static void WinMutexGlobalRelease(void)
{
	LONG rc;
	rc = InterlockedCompareExchange(&winMutexLock,0,1);
	if( rc == 1 ){
		/* The first to decrement to zero does the actual global release */
		if( winMutexInit == TRUE ){
			sxu32 n;
			for( n = 0 ; n < SX_ARRAYSIZE(aStaticMutexes) ; ++n ){
				DeleteCriticalSection(&aStaticMutexes[n].sMutex);
			}
			winMutexInit = FALSE;
		}
	}
}
static SyMutex * WinMutexNew(int nType)
{
	SyMutex *pMutex = 0;
	if( nType == SXMUTEX_TYPE_FAST || nType == SXMUTEX_TYPE_RECURSIVE ){
		/* Allocate a new mutex */
		pMutex = (SyMutex *)HeapAlloc(GetProcessHeap(),0,sizeof(SyMutex));
		if( pMutex == 0 ){
			return 0;
		}
		InitializeCriticalSection(&pMutex->sMutex);
	}else{
		/* Use a pre-allocated static mutex */
		if( nType > SXMUTEX_TYPE_STATIC_6 ){
			nType = SXMUTEX_TYPE_STATIC_6;
		}
		pMutex = &aStaticMutexes[nType - 3];
	}
	pMutex->nType = nType;
	return pMutex;
}
static void WinMutexRelease(SyMutex *pMutex)
{
	if( pMutex->nType == SXMUTEX_TYPE_FAST || pMutex->nType == SXMUTEX_TYPE_RECURSIVE ){
		DeleteCriticalSection(&pMutex->sMutex);
		HeapFree(GetProcessHeap(),0,pMutex);
	}
}
static void WinMutexEnter(SyMutex *pMutex)
{
	EnterCriticalSection(&pMutex->sMutex);
}
static sxi32 WinMutexTryEnter(SyMutex *pMutex)
{
#ifdef _WIN32_WINNT
	BOOL rc;
	/* Only WindowsNT platforms */
	rc = TryEnterCriticalSection(&pMutex->sMutex);
	if( rc ){
		return SXRET_OK;
	}else{
		return SXERR_BUSY;
	}
#else
	return SXERR_NOTIMPLEMENTED;
#endif
}
static void WinMutexLeave(SyMutex *pMutex)
{
	LeaveCriticalSection(&pMutex->sMutex);
}
/* Export Windows mutex interfaces */
static const SyMutexMethods sWinMutexMethods = {
	WinMutexGlobaInit,  /* xGlobalInit() */
	WinMutexGlobalRelease, /* xGlobalRelease() */
	WinMutexNew,     /* xNew() */
	WinMutexRelease, /* xRelease() */
	WinMutexEnter,   /* xEnter() */
	WinMutexTryEnter, /* xTryEnter() */
	WinMutexLeave     /* xLeave() */
};
PH7_PRIVATE const SyMutexMethods * SyMutexExportMethods(void)
{
	return &sWinMutexMethods;
}
#elif defined(__UNIXES__)
#include <pthread.h>
struct SyMutex
{
	pthread_mutex_t sMutex;
	sxu32 nType;
};
static SyMutex * UnixMutexNew(int nType)
{
	static SyMutex aStaticMutexes[] = {
		{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_1},
		{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_2},
		{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_3},
		{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_4},
		{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_5},
		{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_6}
	};
	SyMutex *pMutex;
	
	if( nType == SXMUTEX_TYPE_FAST || nType == SXMUTEX_TYPE_RECURSIVE ){
		pthread_mutexattr_t sRecursiveAttr;
  		/* Allocate a new mutex */
  		pMutex = (SyMutex *)malloc(sizeof(SyMutex));
  		if( pMutex == 0 ){
  			return 0;
  		}
  		if( nType == SXMUTEX_TYPE_RECURSIVE ){
  			pthread_mutexattr_init(&sRecursiveAttr);
  			pthread_mutexattr_settype(&sRecursiveAttr,PTHREAD_MUTEX_RECURSIVE);
  		}
  		pthread_mutex_init(&pMutex->sMutex,nType == SXMUTEX_TYPE_RECURSIVE ? &sRecursiveAttr : 0 );
		if(	nType == SXMUTEX_TYPE_RECURSIVE ){
   			pthread_mutexattr_destroy(&sRecursiveAttr);
		}
	}else{
		/* Use a pre-allocated static mutex */
		if( nType > SXMUTEX_TYPE_STATIC_6 ){
			nType = SXMUTEX_TYPE_STATIC_6;
		}
		pMutex = &aStaticMutexes[nType - 3];
	}
  pMutex->nType = nType;
  
  return pMutex;
}
static void UnixMutexRelease(SyMutex *pMutex)
{
	if( pMutex->nType == SXMUTEX_TYPE_FAST || pMutex->nType == SXMUTEX_TYPE_RECURSIVE ){
		pthread_mutex_destroy(&pMutex->sMutex);
		free(pMutex);
	}
}
static void UnixMutexEnter(SyMutex *pMutex)
{
	pthread_mutex_lock(&pMutex->sMutex);
}
static void UnixMutexLeave(SyMutex *pMutex)
{
	pthread_mutex_unlock(&pMutex->sMutex);
}
/* Export pthread mutex interfaces */
static const SyMutexMethods sPthreadMutexMethods = {
	0, /* xGlobalInit() */
	0, /* xGlobalRelease() */
	UnixMutexNew,      /* xNew() */
	UnixMutexRelease,  /* xRelease() */
	UnixMutexEnter,    /* xEnter() */
	0,                 /* xTryEnter() */
	UnixMutexLeave     /* xLeave() */
};
PH7_PRIVATE const SyMutexMethods * SyMutexExportMethods(void)
{
	return &sPthreadMutexMethods;
}
#else
/* Host application must register their own mutex subsystem if the target
 * platform is not an UNIX-like or windows systems.
 */
struct SyMutex
{
	sxu32 nType;
};
static SyMutex * DummyMutexNew(int nType)
{
	static SyMutex sMutex;
	SXUNUSED(nType);
	return &sMutex;
}
static void DummyMutexRelease(SyMutex *pMutex)
{
	SXUNUSED(pMutex);
}
static void DummyMutexEnter(SyMutex *pMutex)
{
	SXUNUSED(pMutex);
}
static void DummyMutexLeave(SyMutex *pMutex)
{
	SXUNUSED(pMutex);
}
/* Export the dummy mutex interfaces */
static const SyMutexMethods sDummyMutexMethods = {
	0, /* xGlobalInit() */
	0, /* xGlobalRelease() */
	DummyMutexNew,      /* xNew() */
	DummyMutexRelease,  /* xRelease() */
	DummyMutexEnter,    /* xEnter() */
	0,                  /* xTryEnter() */
	DummyMutexLeave     /* xLeave() */
};
PH7_PRIVATE const SyMutexMethods * SyMutexExportMethods(void)
{
	return &sDummyMutexMethods;
}
#endif /* __WINNT__ */
#endif /* PH7_ENABLE_THREADS */
static void * SyOSHeapAlloc(sxu32 nByte)
{
	void *pNew;
#if defined(__WINNT__)
	pNew = HeapAlloc(GetProcessHeap(),0,nByte);
#else
	pNew = malloc((size_t)nByte);
#endif
	return pNew;
}
static void * SyOSHeapRealloc(void *pOld,sxu32 nByte)
{
	void *pNew;
#if defined(__WINNT__)
	pNew = HeapReAlloc(GetProcessHeap(),0,pOld,nByte);
#else
	pNew = realloc(pOld,(size_t)nByte);
#endif
	return pNew;	
}
static void SyOSHeapFree(void *pPtr)
{
#if defined(__WINNT__)
	HeapFree(GetProcessHeap(),0,pPtr);
#else
	free(pPtr);
#endif
}
/* SyRunTimeApi:sxstr.c */
PH7_PRIVATE sxu32 SyStrlen(const char *zSrc)
{
	register const char *zIn = zSrc;
#if defined(UNTRUST)
	if( zIn == 0 ){
		return 0;
	}
#endif
	for(;;){
		if( !zIn[0] ){ break; } zIn++;
		if( !zIn[0] ){ break; } zIn++;
		if( !zIn[0] ){ break; } zIn++;
		if( !zIn[0] ){ break; } zIn++;	
	}
	return (sxu32)(zIn - zSrc);
}
PH7_PRIVATE sxi32 SyByteFind(const char *zStr,sxu32 nLen,sxi32 c,sxu32 *pPos)
{
	const char *zIn = zStr;
	const char *zEnd;
	
	zEnd = &zIn[nLen];
	for(;;){
		if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
		if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
		if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
		if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
	}
	return SXERR_NOTFOUND;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyByteFind2(const char *zStr,sxu32 nLen,sxi32 c,sxu32 *pPos)
{
	const char *zIn = zStr;
	const char *zEnd;
	
	zEnd = &zIn[nLen - 1];
	for( ;; ){
		if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos =  (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
		if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos =  (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
		if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos =  (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
		if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos =  (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
	}
	return SXERR_NOTFOUND; 
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
PH7_PRIVATE sxi32 SyByteListFind(const char *zSrc,sxu32 nLen,const char *zList,sxu32 *pFirstPos)
{
	const char *zIn = zSrc;
	const char *zPtr;
	const char *zEnd;
	sxi32 c;
	zEnd = &zSrc[nLen];
	for(;;){
		if( zIn >= zEnd ){ break; }	for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
		if( zIn >= zEnd ){ break; }	for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
		if( zIn >= zEnd ){ break; }	for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
		if( zIn >= zEnd ){ break; }	for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
	}	
	return SXERR_NOTFOUND; 
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyStrncmp(const char *zLeft,const char *zRight,sxu32 nLen)
{
	const unsigned char *zP = (const unsigned char *)zLeft;
	const unsigned char *zQ = (const unsigned char *)zRight;

	if( SX_EMPTY_STR(zP) || SX_EMPTY_STR(zQ)  ){
			return SX_EMPTY_STR(zP) ? (SX_EMPTY_STR(zQ) ? 0 : -1) :1;
	}
	if( nLen <= 0 ){
		return 0;
	}
	for(;;){
		if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
		if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
		if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
		if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
	}
	return (sxi32)(zP[0] - zQ[0]);
}	
#endif
PH7_PRIVATE sxi32 SyStrnicmp(const char *zLeft, const char *zRight,sxu32 SLen)
{
  	register unsigned char *p = (unsigned char *)zLeft;
	register unsigned char *q = (unsigned char *)zRight;
	
	if( SX_EMPTY_STR(p) || SX_EMPTY_STR(q) ){
		return SX_EMPTY_STR(p)? SX_EMPTY_STR(q) ? 0 : -1 :1;
	}
	for(;;){
		if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
		if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
		if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
		if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
		
	}
	return (sxi32)(SyCharToLower(p[0]) - SyCharToLower(q[0]));
}
PH7_PRIVATE sxi32 SyStrnmicmp(const void *pLeft, const void *pRight,sxu32 SLen)
{
	return SyStrnicmp((const char *)pLeft,(const char *)pRight,SLen);
}
static sxu32 Systrcpy(char *zDest,sxu32 nDestLen,const char *zSrc,sxu32 nLen)
{
	unsigned char *zBuf = (unsigned char *)zDest;
	unsigned char *zIn = (unsigned char *)zSrc;
	unsigned char *zEnd;
#if defined(UNTRUST)
	if( zSrc == (const char *)zDest ){
			return 0;
	}
#endif
	if( nLen <= 0 ){
		nLen = SyStrlen(zSrc);
	}
	zEnd = &zBuf[nDestLen - 1]; /* reserve a room for the null terminator */
	for(;;){
		if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
		if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
		if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
		if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
	}
	zBuf[0] = 0;
	return (sxu32)(zBuf-(unsigned char *)zDest);
}
/* SyRunTimeApi:sxmem.c */
PH7_PRIVATE void SyZero(void *pSrc,sxu32 nSize)
{
	register unsigned char *zSrc = (unsigned char *)pSrc;
	unsigned char *zEnd;
#if defined(UNTRUST)
	if( zSrc == 0 || nSize <= 0 ){
		return ;
	}
#endif
	zEnd = &zSrc[nSize];
	for(;;){
		if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
		if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
		if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
		if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
	}
}
PH7_PRIVATE sxi32 SyMemcmp(const void *pB1,const void *pB2,sxu32 nSize)
{
	sxi32 rc;
	if( nSize <= 0 ){
		return 0;
	}
	if( pB1 == 0 || pB2 == 0 ){
		return pB1 != 0 ? 1 : (pB2 == 0 ? 0 : -1);
	}
	SX_MACRO_FAST_CMP(pB1,pB2,nSize,rc);
	return rc;
}
PH7_PRIVATE sxu32 SyMemcpy(const void *pSrc,void *pDest,sxu32 nLen)
{
#if defined(UNTRUST)
	if( pSrc == 0 || pDest == 0 ){
		return 0;
	}
#endif
	if( pSrc == (const void *)pDest ){
		return nLen;
	}
	SX_MACRO_FAST_MEMCPY(pSrc,pDest,nLen);
	return nLen;
}
static void * MemOSAlloc(sxu32 nBytes)
{
	sxu32 *pChunk;
	pChunk = (sxu32 *)SyOSHeapAlloc(nBytes + sizeof(sxu32));
	if( pChunk == 0 ){
		return 0;
	}
	pChunk[0] = nBytes;
	return (void *)&pChunk[1];
}
static void * MemOSRealloc(void *pOld,sxu32 nBytes)
{
	sxu32 *pOldChunk;
	sxu32 *pChunk;
	pOldChunk = (sxu32 *)(((char *)pOld)-sizeof(sxu32));
	if( pOldChunk[0] >= nBytes ){
		return pOld;
	}
	pChunk = (sxu32 *)SyOSHeapRealloc(pOldChunk,nBytes + sizeof(sxu32));
	if( pChunk == 0 ){
		return 0;
	}
	pChunk[0] = nBytes;
	return (void *)&pChunk[1];
}
static void MemOSFree(void *pBlock)
{
	void *pChunk;
	pChunk = (void *)(((char *)pBlock)-sizeof(sxu32));
	SyOSHeapFree(pChunk);
}
static sxu32 MemOSChunkSize(void *pBlock)
{
	sxu32 *pChunk;
	pChunk = (sxu32 *)(((char *)pBlock)-sizeof(sxu32));
	return pChunk[0];
}
/* Export OS allocation methods */
static const SyMemMethods sOSAllocMethods = {
	MemOSAlloc,
	MemOSRealloc,
	MemOSFree,
	MemOSChunkSize,
	0,
	0,
	0
};
static void * MemBackendAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
	SyMemBlock *pBlock;
	sxi32 nRetry = 0;

	/* Append an extra block so we can tracks allocated chunks and avoid memory
	 * leaks.
	 */
	nByte += sizeof(SyMemBlock);
	for(;;){
		pBlock = (SyMemBlock *)pBackend->pMethods->xAlloc(nByte);
		if( pBlock != 0 || pBackend->xMemError == 0 || nRetry > SXMEM_BACKEND_RETRY 
			|| SXERR_RETRY != pBackend->xMemError(pBackend->pUserData) ){
				break;
		}
		nRetry++;
	}
	if( pBlock  == 0 ){
		return 0;
	}
	pBlock->pNext = pBlock->pPrev = 0;
	/* Link to the list of already tracked blocks */
	MACRO_LD_PUSH(pBackend->pBlocks,pBlock);
#if defined(UNTRUST)
	pBlock->nGuard = SXMEM_BACKEND_MAGIC;
#endif
	pBackend->nBlock++;
	return (void *)&pBlock[1];
}
PH7_PRIVATE void * SyMemBackendAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
	void *pChunk;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) ){
		return 0;
	}
#endif
	if( pBackend->pMutexMethods ){
		SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
	}
	pChunk = MemBackendAlloc(&(*pBackend),nByte);
	if( pBackend->pMutexMethods ){
		SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
	}
	return pChunk;
}
static void * MemBackendRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
	SyMemBlock *pBlock,*pNew,*pPrev,*pNext;
	sxu32 nRetry = 0;

	if( pOld == 0 ){
		return MemBackendAlloc(&(*pBackend),nByte);
	}
	pBlock = (SyMemBlock *)(((char *)pOld) - sizeof(SyMemBlock));
#if defined(UNTRUST)
	if( pBlock->nGuard != SXMEM_BACKEND_MAGIC ){
		return 0;
	}
#endif
	nByte += sizeof(SyMemBlock);
	pPrev = pBlock->pPrev;
	pNext = pBlock->pNext;
	for(;;){
		pNew = (SyMemBlock *)pBackend->pMethods->xRealloc(pBlock,nByte);
		if( pNew != 0 || pBackend->xMemError == 0 || nRetry > SXMEM_BACKEND_RETRY ||
			SXERR_RETRY != pBackend->xMemError(pBackend->pUserData) ){
				break;
		}
		nRetry++;
	}
	if( pNew == 0 ){
		return 0;
	}
	if( pNew != pBlock ){
		if( pPrev == 0 ){
			pBackend->pBlocks = pNew;
		}else{
			pPrev->pNext = pNew;
		}
		if( pNext ){
			pNext->pPrev = pNew;
		}
#if defined(UNTRUST)
		pNew->nGuard = SXMEM_BACKEND_MAGIC;
#endif
	}
	return (void *)&pNew[1];
}
PH7_PRIVATE void * SyMemBackendRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
	void *pChunk;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend)  ){
		return 0;
	}
#endif
	if( pBackend->pMutexMethods ){
		SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
	}
	pChunk = MemBackendRealloc(&(*pBackend),pOld,nByte);
	if( pBackend->pMutexMethods ){
		SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
	}
	return pChunk;
}
static sxi32 MemBackendFree(SyMemBackend *pBackend,void * pChunk)
{
	SyMemBlock *pBlock;
	pBlock = (SyMemBlock *)(((char *)pChunk) - sizeof(SyMemBlock));
#if defined(UNTRUST)
	if( pBlock->nGuard != SXMEM_BACKEND_MAGIC ){
		return SXERR_CORRUPT;
	}
#endif
	/* Unlink from the list of active blocks */
	if( pBackend->nBlock > 0 ){
		/* Release the block */
#if defined(UNTRUST)
		/* Mark as stale block */
		pBlock->nGuard = 0x635B;
#endif
		MACRO_LD_REMOVE(pBackend->pBlocks,pBlock);
		pBackend->nBlock--;
		pBackend->pMethods->xFree(pBlock);
	}
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendFree(SyMemBackend *pBackend,void * pChunk)
{
	sxi32 rc;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) ){
		return SXERR_CORRUPT;
	}
#endif
	if( pChunk == 0 ){
		return SXRET_OK;
	}
	if( pBackend->pMutexMethods ){
		SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
	}
	rc = MemBackendFree(&(*pBackend),pChunk);
	if( pBackend->pMutexMethods ){
		SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
	}
	return rc;
}
#if defined(PH7_ENABLE_THREADS)
PH7_PRIVATE sxi32 SyMemBackendMakeThreadSafe(SyMemBackend *pBackend,const SyMutexMethods *pMethods)
{
	SyMutex *pMutex;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) || pMethods == 0 || pMethods->xNew == 0){
		return SXERR_CORRUPT;
	}
#endif
	pMutex = pMethods->xNew(SXMUTEX_TYPE_FAST);
	if( pMutex == 0 ){
		return SXERR_OS;
	}
	/* Attach the mutex to the memory backend */
	pBackend->pMutex = pMutex;
	pBackend->pMutexMethods = pMethods;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendDisbaleMutexing(SyMemBackend *pBackend)
{
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) ){
		return SXERR_CORRUPT;
	}
#endif
	if( pBackend->pMutex == 0 ){
		/* There is no mutex subsystem at all */
		return SXRET_OK;
	}
	SyMutexRelease(pBackend->pMutexMethods,pBackend->pMutex);
	pBackend->pMutexMethods = 0;
	pBackend->pMutex = 0; 
	return SXRET_OK;
}
#endif
/*
 * Memory pool allocator
 */
#define SXMEM_POOL_MAGIC		0xDEAD
#define SXMEM_POOL_MAXALLOC		(1<<(SXMEM_POOL_NBUCKETS+SXMEM_POOL_INCR)) 
#define SXMEM_POOL_MINALLOC		(1<<(SXMEM_POOL_INCR))
static sxi32 MemPoolBucketAlloc(SyMemBackend *pBackend,sxu32 nBucket)
{
	char *zBucket,*zBucketEnd;
	SyMemHeader *pHeader;
	sxu32 nBucketSize;
	
	/* Allocate one big block first */
	zBucket = (char *)MemBackendAlloc(&(*pBackend),SXMEM_POOL_MAXALLOC);
	if( zBucket == 0 ){
		return SXERR_MEM;
	}
	zBucketEnd = &zBucket[SXMEM_POOL_MAXALLOC];
	/* Divide the big block into mini bucket pool */
	nBucketSize = 1 << (nBucket + SXMEM_POOL_INCR);
	pBackend->apPool[nBucket] = pHeader = (SyMemHeader *)zBucket;
	for(;;){
		if( &zBucket[nBucketSize] >= zBucketEnd ){
			break;
		}
		pHeader->pNext = (SyMemHeader *)&zBucket[nBucketSize];
		/* Advance the cursor to the next available chunk */
		pHeader = pHeader->pNext;
		zBucket += nBucketSize;	
	}
	pHeader->pNext = 0;
	
	return SXRET_OK;
}
static void * MemBackendPoolAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
	SyMemHeader *pBucket,*pNext;
	sxu32 nBucketSize;
	sxu32 nBucket;

	if( nByte + sizeof(SyMemHeader) >= SXMEM_POOL_MAXALLOC ){
		/* Allocate a big chunk directly */
		pBucket = (SyMemHeader *)MemBackendAlloc(&(*pBackend),nByte+sizeof(SyMemHeader));
		if( pBucket == 0 ){
			return 0;
		}
		/* Record as big block */
		pBucket->nBucket = (sxu32)(SXMEM_POOL_MAGIC << 16) | SXU16_HIGH;
		return (void *)(pBucket+1);
	}
	/* Locate the appropriate bucket */
	nBucket = 0;
	nBucketSize = SXMEM_POOL_MINALLOC;
	while( nByte + sizeof(SyMemHeader) > nBucketSize  ){
		nBucketSize <<= 1;
		nBucket++;
	}
	pBucket = pBackend->apPool[nBucket];
	if( pBucket == 0 ){
		sxi32 rc;
		rc = MemPoolBucketAlloc(&(*pBackend),nBucket);
		if( rc != SXRET_OK ){
			return 0;
		}
		pBucket = pBackend->apPool[nBucket];
	}
	/* Remove from the free list */
	pNext = pBucket->pNext;
	pBackend->apPool[nBucket] = pNext;
	/* Record bucket&magic number */
	pBucket->nBucket = (SXMEM_POOL_MAGIC << 16) | nBucket;
	return (void *)&pBucket[1];
}
PH7_PRIVATE void * SyMemBackendPoolAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
	void *pChunk;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) ){
		return 0;
	}
#endif
	if( pBackend->pMutexMethods ){
		SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
	}
	pChunk = MemBackendPoolAlloc(&(*pBackend),nByte);
	if( pBackend->pMutexMethods ){
		SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
	}
	return pChunk;
}
static sxi32 MemBackendPoolFree(SyMemBackend *pBackend,void * pChunk)
{
	SyMemHeader *pHeader;
	sxu32 nBucket;
	/* Get the corresponding bucket */
	pHeader = (SyMemHeader *)(((char *)pChunk) - sizeof(SyMemHeader));
	/* Sanity check to avoid misuse */
	if( (pHeader->nBucket >> 16) != SXMEM_POOL_MAGIC ){
		return SXERR_CORRUPT;
	}
	nBucket = pHeader->nBucket & 0xFFFF;
	if( nBucket == SXU16_HIGH ){
		/* Free the big block */
		MemBackendFree(&(*pBackend),pHeader);
	}else{
		/* Return to the free list */
		pHeader->pNext = pBackend->apPool[nBucket & 0x0f];
		pBackend->apPool[nBucket & 0x0f] = pHeader;
	}
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendPoolFree(SyMemBackend *pBackend,void * pChunk)
{
	sxi32 rc;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) || pChunk == 0 ){
		return SXERR_CORRUPT;
	}
#endif
	if( pBackend->pMutexMethods ){
		SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
	}
	rc = MemBackendPoolFree(&(*pBackend),pChunk);
	if( pBackend->pMutexMethods ){
		SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
	}
	return rc;
}
#if 0
static void * MemBackendPoolRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
	sxu32 nBucket,nBucketSize;
	SyMemHeader *pHeader;
	void * pNew;

	if( pOld == 0 ){
		/* Allocate a new pool */
		pNew = MemBackendPoolAlloc(&(*pBackend),nByte);
		return pNew;
	}
	/* Get the corresponding bucket */
	pHeader = (SyMemHeader *)(((char *)pOld) - sizeof(SyMemHeader));
	/* Sanity check to avoid misuse */
	if( (pHeader->nBucket >> 16) != SXMEM_POOL_MAGIC ){
		return 0;
	}
	nBucket = pHeader->nBucket & 0xFFFF;
	if( nBucket == SXU16_HIGH ){
		/* Big block */
		return MemBackendRealloc(&(*pBackend),pHeader,nByte);
	}
	nBucketSize = 1 << (nBucket + SXMEM_POOL_INCR);
	if( nBucketSize >= nByte + sizeof(SyMemHeader) ){
		/* The old bucket can honor the requested size */
		return pOld;
	}
	/* Allocate a new pool */
	pNew = MemBackendPoolAlloc(&(*pBackend),nByte);
	if( pNew == 0 ){
		return 0;
	}
	/* Copy the old data into the new block */
	SyMemcpy(pOld,pNew,nBucketSize);
	/* Free the stale block */
	MemBackendPoolFree(&(*pBackend),pOld);
	return pNew;
}
PH7_PRIVATE void * SyMemBackendPoolRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
	void *pChunk;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) ){
		return 0;
	}
#endif
	if( pBackend->pMutexMethods ){
		SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
	}
	pChunk = MemBackendPoolRealloc(&(*pBackend),pOld,nByte);
	if( pBackend->pMutexMethods ){
		SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
	}
	return pChunk;
}
#endif
PH7_PRIVATE sxi32 SyMemBackendInit(SyMemBackend *pBackend,ProcMemError xMemErr,void * pUserData)
{
#if defined(UNTRUST)
	if( pBackend == 0 ){
		return SXERR_EMPTY;
	}
#endif
	/* Zero the allocator first */
	SyZero(&(*pBackend),sizeof(SyMemBackend));
	pBackend->xMemError = xMemErr;
	pBackend->pUserData = pUserData;
	/* Switch to the OS memory allocator */
	pBackend->pMethods = &sOSAllocMethods;
	if( pBackend->pMethods->xInit ){
		/* Initialize the backend  */
		if( SXRET_OK != pBackend->pMethods->xInit(pBackend->pMethods->pUserData) ){
			return SXERR_ABORT;
		}
	}
#if defined(UNTRUST)
	pBackend->nMagic = SXMEM_BACKEND_MAGIC;
#endif
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendInitFromOthers(SyMemBackend *pBackend,const SyMemMethods *pMethods,ProcMemError xMemErr,void * pUserData)
{
#if defined(UNTRUST)
	if( pBackend == 0 || pMethods == 0){
		return SXERR_EMPTY;
	}
#endif
	if( pMethods->xAlloc == 0 || pMethods->xRealloc == 0 || pMethods->xFree == 0 || pMethods->xChunkSize == 0 ){
		/* mandatory methods are missing */
		return SXERR_INVALID;
	}
	/* Zero the allocator first */
	SyZero(&(*pBackend),sizeof(SyMemBackend));
	pBackend->xMemError = xMemErr;
	pBackend->pUserData = pUserData;
	/* Switch to the host application memory allocator */
	pBackend->pMethods = pMethods;
	if( pBackend->pMethods->xInit ){
		/* Initialize the backend  */
		if( SXRET_OK != pBackend->pMethods->xInit(pBackend->pMethods->pUserData) ){
			return SXERR_ABORT;
		}
	}
#if defined(UNTRUST)
	pBackend->nMagic = SXMEM_BACKEND_MAGIC;
#endif
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendInitFromParent(SyMemBackend *pBackend,SyMemBackend *pParent)
{
	sxu8 bInheritMutex;
#if defined(UNTRUST)
	if( pBackend == 0 || SXMEM_BACKEND_CORRUPT(pParent) ){
		return SXERR_CORRUPT;
	}
#endif
	/* Zero the allocator first */
	SyZero(&(*pBackend),sizeof(SyMemBackend));
	pBackend->pMethods  = pParent->pMethods;
	pBackend->xMemError = pParent->xMemError;
	pBackend->pUserData = pParent->pUserData;
	bInheritMutex = pParent->pMutexMethods ? TRUE : FALSE;
	if( bInheritMutex ){
		pBackend->pMutexMethods = pParent->pMutexMethods;
		/* Create a private mutex */
		pBackend->pMutex = pBackend->pMutexMethods->xNew(SXMUTEX_TYPE_FAST);
		if( pBackend->pMutex ==  0){
			return SXERR_OS;
		}
	}
#if defined(UNTRUST)
	pBackend->nMagic = SXMEM_BACKEND_MAGIC;
#endif
	return SXRET_OK;
}
static sxi32 MemBackendRelease(SyMemBackend *pBackend)
{
	SyMemBlock *pBlock,*pNext;

	pBlock = pBackend->pBlocks;
	for(;;){
		if( pBackend->nBlock == 0 ){
			break;
		}
		pNext  = pBlock->pNext;
		pBackend->pMethods->xFree(pBlock);
		pBlock = pNext;
		pBackend->nBlock--;
		/* LOOP ONE */
		if( pBackend->nBlock == 0 ){
			break;
		}
		pNext  = pBlock->pNext;
		pBackend->pMethods->xFree(pBlock);
		pBlock = pNext;
		pBackend->nBlock--;
		/* LOOP TWO */
		if( pBackend->nBlock == 0 ){
			break;
		}
		pNext  = pBlock->pNext;
		pBackend->pMethods->xFree(pBlock);
		pBlock = pNext;
		pBackend->nBlock--;
		/* LOOP THREE */
		if( pBackend->nBlock == 0 ){
			break;
		}
		pNext  = pBlock->pNext;
		pBackend->pMethods->xFree(pBlock);
		pBlock = pNext;
		pBackend->nBlock--;
		/* LOOP FOUR */
	}
	if( pBackend->pMethods->xRelease ){
		pBackend->pMethods->xRelease(pBackend->pMethods->pUserData);
	}
	pBackend->pMethods = 0;
	pBackend->pBlocks  = 0;
#if defined(UNTRUST)
	pBackend->nMagic = 0x2626;
#endif
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendRelease(SyMemBackend *pBackend)
{
	sxi32 rc;
#if defined(UNTRUST)
	if( SXMEM_BACKEND_CORRUPT(pBackend) ){
		return SXERR_INVALID;
	}
#endif
	if( pBackend->pMutexMethods ){
		SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
	}
	rc = MemBackendRelease(&(*pBackend));
	if( pBackend->pMutexMethods ){
		SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
		SyMutexRelease(pBackend->pMutexMethods,pBackend->pMutex);
	}
	return SXRET_OK;
}
PH7_PRIVATE void * SyMemBackendDup(SyMemBackend *pBackend,const void *pSrc,sxu32 nSize)
{
	void *pNew;
#if defined(UNTRUST)
	if( pSrc == 0 || nSize <= 0 ){
		return 0;
	}
#endif
	pNew = SyMemBackendAlloc(&(*pBackend),nSize);
	if( pNew ){
		SyMemcpy(pSrc,pNew,nSize);
	}
	return pNew;
}
PH7_PRIVATE char * SyMemBackendStrDup(SyMemBackend *pBackend,const char *zSrc,sxu32 nSize)
{
	char *zDest;
	zDest = (char *)SyMemBackendAlloc(&(*pBackend),nSize + 1);
	if( zDest ){
		Systrcpy(zDest,nSize+1,zSrc,nSize);
	}
	return zDest;
}
PH7_PRIVATE sxi32 SyBlobInitFromBuf(SyBlob *pBlob,void *pBuffer,sxu32 nSize)
{
#if defined(UNTRUST)
	if( pBlob == 0 || pBuffer == 0 || nSize < 1 ){
		return SXERR_EMPTY;
	}
#endif
	pBlob->pBlob = pBuffer;
	pBlob->mByte = nSize;
	pBlob->nByte = 0;
	pBlob->pAllocator = 0;
	pBlob->nFlags = SXBLOB_LOCKED|SXBLOB_STATIC;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobInit(SyBlob *pBlob,SyMemBackend *pAllocator)
{
#if defined(UNTRUST)
	if( pBlob == 0  ){
		return SXERR_EMPTY;
	}
#endif
	pBlob->pBlob = 0;
	pBlob->mByte = pBlob->nByte	= 0;
	pBlob->pAllocator = &(*pAllocator);
	pBlob->nFlags = 0;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobReadOnly(SyBlob *pBlob,const void *pData,sxu32 nByte)
{
#if defined(UNTRUST)
	if( pBlob == 0  ){
		return SXERR_EMPTY;
	}
#endif
	pBlob->pBlob = (void *)pData;
	pBlob->nByte = nByte;
	pBlob->mByte = 0;
	pBlob->nFlags |= SXBLOB_RDONLY;
	return SXRET_OK;
}
#ifndef SXBLOB_MIN_GROWTH
#define SXBLOB_MIN_GROWTH 16
#endif
static sxi32 BlobPrepareGrow(SyBlob *pBlob,sxu32 *pByte)
{
	sxu32 nByte;
	void *pNew;
	nByte = *pByte;
	if( pBlob->nFlags & (SXBLOB_LOCKED|SXBLOB_STATIC) ){
		if ( SyBlobFreeSpace(pBlob) < nByte ){
			*pByte = SyBlobFreeSpace(pBlob);
			if( (*pByte) == 0 ){
				return SXERR_SHORT;
			}
		}
		return SXRET_OK;
	}
	if( pBlob->nFlags & SXBLOB_RDONLY ){
		/* Make a copy of the read-only item */
		if( pBlob->nByte > 0 ){
			pNew = SyMemBackendDup(pBlob->pAllocator,pBlob->pBlob,pBlob->nByte);
			if( pNew == 0 ){
				return SXERR_MEM;
			}
			pBlob->pBlob = pNew;
			pBlob->mByte = pBlob->nByte;
		}else{
			pBlob->pBlob = 0;
			pBlob->mByte = 0;
		}
		/* Remove the read-only flag */
		pBlob->nFlags &= ~SXBLOB_RDONLY;
	}
	if( SyBlobFreeSpace(pBlob) >= nByte ){
		return SXRET_OK;
	}
	if( pBlob->mByte > 0 ){
		nByte = nByte + pBlob->mByte * 2 + SXBLOB_MIN_GROWTH;
	}else if ( nByte < SXBLOB_MIN_GROWTH ){
		nByte = SXBLOB_MIN_GROWTH;
	}
	pNew = SyMemBackendRealloc(pBlob->pAllocator,pBlob->pBlob,nByte);
	if( pNew == 0 ){
		return SXERR_MEM;
	}
	pBlob->pBlob = pNew;
	pBlob->mByte = nByte;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobAppend(SyBlob *pBlob,const void *pData,sxu32 nSize)
{
	sxu8 *zBlob;
	sxi32 rc;
	if( nSize < 1 ){
		return SXRET_OK;
	}
	rc = BlobPrepareGrow(&(*pBlob),&nSize);
	if( SXRET_OK != rc ){
		return rc;
	}
	if( pData ){
		zBlob = (sxu8 *)pBlob->pBlob ;
		zBlob = &zBlob[pBlob->nByte];
		pBlob->nByte += nSize;
		SX_MACRO_FAST_MEMCPY(pData,zBlob,nSize);
	}
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobNullAppend(SyBlob *pBlob)
{
	sxi32 rc;
	sxu32 n;
	n = pBlob->nByte;
	rc = SyBlobAppend(&(*pBlob),(const void *)"\0",sizeof(char));
	if (rc == SXRET_OK ){
		pBlob->nByte = n;
	}
	return rc;
}
PH7_PRIVATE sxi32 SyBlobDup(SyBlob *pSrc,SyBlob *pDest)
{
	sxi32 rc = SXRET_OK;
#ifdef UNTRUST
	if( pSrc == 0 || pDest == 0 ){
		return SXERR_EMPTY;
	}
#endif
	if( pSrc->nByte > 0 ){
		rc = SyBlobAppend(&(*pDest),pSrc->pBlob,pSrc->nByte);
	}
	return rc;
}
PH7_PRIVATE sxi32 SyBlobCmp(SyBlob *pLeft,SyBlob *pRight)
{
	sxi32 rc;
#ifdef UNTRUST
	if( pLeft == 0 || pRight == 0 ){
		return pLeft ? 1 : -1;
	}
#endif
	if( pLeft->nByte != pRight->nByte ){
		/* Length differ */
		return pLeft->nByte - pRight->nByte;
	}
	if( pLeft->nByte == 0 ){
		return 0;
	}
	/* Perform a standard memcmp() operation */
	rc = SyMemcmp(pLeft->pBlob,pRight->pBlob,pLeft->nByte);
	return rc;
}
PH7_PRIVATE sxi32 SyBlobReset(SyBlob *pBlob)
{
	pBlob->nByte = 0;
	if( pBlob->nFlags & SXBLOB_RDONLY ){
		pBlob->pBlob = 0;
		pBlob->mByte = 0;
		pBlob->nFlags &= ~SXBLOB_RDONLY;
	}
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobRelease(SyBlob *pBlob)
{
	if( (pBlob->nFlags & (SXBLOB_STATIC|SXBLOB_RDONLY)) == 0 && pBlob->mByte > 0 ){
		SyMemBackendFree(pBlob->pAllocator,pBlob->pBlob);
	}
	pBlob->pBlob = 0;
	pBlob->nByte = pBlob->mByte = 0;
	pBlob->nFlags = 0;
	return SXRET_OK;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyBlobSearch(const void *pBlob,sxu32 nLen,const void *pPattern,sxu32 pLen,sxu32 *pOfft)
{
	const char *zIn = (const char *)pBlob;
	const char *zEnd;
	sxi32 rc;
	if( pLen > nLen ){
		return SXERR_NOTFOUND;
	}
	zEnd = &zIn[nLen-pLen];
	for(;;){
		if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
		if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
		if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
		if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
	}
	return SXERR_NOTFOUND;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
/* SyRunTimeApi:sxds.c */
PH7_PRIVATE sxi32 SySetInit(SySet *pSet,SyMemBackend *pAllocator,sxu32 ElemSize)
{
	pSet->nSize = 0 ;
	pSet->nUsed = 0;
	pSet->nCursor = 0;
	pSet->eSize = ElemSize;
	pSet->pAllocator = pAllocator;
	pSet->pBase =  0;
	pSet->pUserData = 0;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetPut(SySet *pSet,const void *pItem)
{
	unsigned char *zbase;
	if( pSet->nUsed >= pSet->nSize ){
		void *pNew;
		if( pSet->pAllocator == 0 ){
			return  SXERR_LOCKED;
		}
		if( pSet->nSize <= 0 ){
			pSet->nSize = 4;
		}
		pNew = SyMemBackendRealloc(pSet->pAllocator,pSet->pBase,pSet->eSize * pSet->nSize * 2);
		if( pNew == 0 ){
			return SXERR_MEM;
		}
		pSet->pBase = pNew;
		pSet->nSize <<= 1;
	}
	zbase = (unsigned char *)pSet->pBase;
	SX_MACRO_FAST_MEMCPY(pItem,&zbase[pSet->nUsed * pSet->eSize],pSet->eSize);
	pSet->nUsed++;	
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetAlloc(SySet *pSet,sxi32 nItem)
{
	if( pSet->nSize > 0 ){
		return SXERR_LOCKED;
	}
	if( nItem < 8 ){
		nItem = 8;
	}
	pSet->pBase = SyMemBackendAlloc(pSet->pAllocator,pSet->eSize * nItem);
	if( pSet->pBase == 0 ){
		return SXERR_MEM;
	}
	pSet->nSize = nItem;
	return SXRET_OK;
} 
PH7_PRIVATE sxi32 SySetReset(SySet *pSet)
{
	pSet->nUsed   = 0;
	pSet->nCursor = 0;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetResetCursor(SySet *pSet)
{
	pSet->nCursor = 0;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetGetNextEntry(SySet *pSet,void **ppEntry)
{
	register unsigned char *zSrc;
	if( pSet->nCursor >= pSet->nUsed ){
		/* Reset cursor */
		pSet->nCursor = 0;
		return SXERR_EOF;
	}
	zSrc = (unsigned char *)SySetBasePtr(pSet);
	if( ppEntry ){
		*ppEntry = (void *)&zSrc[pSet->nCursor * pSet->eSize];
	}
	pSet->nCursor++;
	return SXRET_OK;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE void * SySetPeekCurrentEntry(SySet *pSet)
{
	register unsigned char *zSrc;
	if( pSet->nCursor >= pSet->nUsed ){
		return 0;
	}
	zSrc = (unsigned char *)SySetBasePtr(pSet);
	return (void *)&zSrc[pSet->nCursor * pSet->eSize];
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
PH7_PRIVATE sxi32 SySetTruncate(SySet *pSet,sxu32 nNewSize)
{
	if( nNewSize < pSet->nUsed ){
		pSet->nUsed = nNewSize;
	}
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetRelease(SySet *pSet)
{
	sxi32 rc = SXRET_OK;
	if( pSet->pAllocator && pSet->pBase ){
		rc = SyMemBackendFree(pSet->pAllocator,pSet->pBase);
	}
	pSet->pBase = 0;
	pSet->nUsed = 0;
	pSet->nCursor = 0;
	return rc;
}
PH7_PRIVATE void * SySetPeek(SySet *pSet)
{
	const char *zBase;
	if( pSet->nUsed <= 0 ){
		return 0;
	}
	zBase = (const char *)pSet->pBase;
	return (void *)&zBase[(pSet->nUsed - 1) * pSet->eSize]; 
}
PH7_PRIVATE void * SySetPop(SySet *pSet)
{
	const char *zBase;
	void *pData;
	if( pSet->nUsed <= 0 ){
		return 0;
	}
	zBase = (const char *)pSet->pBase;
	pSet->nUsed--;
	pData =  (void *)&zBase[pSet->nUsed * pSet->eSize]; 
	return pData;
}
PH7_PRIVATE void * SySetAt(SySet *pSet,sxu32 nIdx)
{
	const char *zBase;
	if( nIdx >= pSet->nUsed ){
		/* Out of range */
		return 0;
	}
	zBase = (const char *)pSet->pBase;
	return (void *)&zBase[nIdx * pSet->eSize]; 
}
/* Private hash entry */
struct SyHashEntry_Pr
{
	const void *pKey; /* Hash key */
	sxu32 nKeyLen;    /* Key length */
	void *pUserData;  /* User private data */
	/* Private fields */
	sxu32 nHash;
	SyHash *pHash;
	SyHashEntry_Pr *pNext,*pPrev; /* Next and previous entry in the list */
	SyHashEntry_Pr *pNextCollide,*pPrevCollide; /* Collision list */
};
#define INVALID_HASH(H) ((H)->apBucket == 0)
/* Forward declarartion */
static sxu32 SyBinHash(const void *pSrc,sxu32 nLen);
PH7_PRIVATE sxi32 SyHashInit(SyHash *pHash,SyMemBackend *pAllocator,ProcHash xHash,ProcCmp xCmp)
{
	SyHashEntry_Pr **apNew;
#if defined(UNTRUST)
	if( pHash == 0 ){
		return SXERR_EMPTY;
	}
#endif
	/* Allocate a new table */
	apNew = (SyHashEntry_Pr **)SyMemBackendAlloc(&(*pAllocator),sizeof(SyHashEntry_Pr *) * SXHASH_BUCKET_SIZE);
	if( apNew == 0 ){
		return SXERR_MEM;
	}
	SyZero((void *)apNew,sizeof(SyHashEntry_Pr *) * SXHASH_BUCKET_SIZE);
	pHash->pAllocator = &(*pAllocator);
	pHash->xHash = xHash ? xHash : SyBinHash;
	pHash->xCmp = xCmp ? xCmp : SyMemcmp;
	pHash->pCurrent = pHash->pList = 0;
	pHash->nEntry = 0;
	pHash->apBucket = apNew;
	pHash->nBucketSize = SXHASH_BUCKET_SIZE;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyHashRelease(SyHash *pHash)
{
	SyHashEntry_Pr *pEntry,*pNext;
#if defined(UNTRUST)
	if( INVALID_HASH(pHash)  ){
		return SXERR_EMPTY;
	}
#endif
	pEntry = pHash->pList;
	for(;;){
		if( pHash->nEntry == 0 ){
			break;
		}
		pNext = pEntry->pNext;
		SyMemBackendPoolFree(pHash->pAllocator,pEntry);
		pEntry = pNext;
		pHash->nEntry--;
	}
	if( pHash->apBucket ){
		SyMemBackendFree(pHash->pAllocator,(void *)pHash->apBucket);
	}
	pHash->apBucket = 0;
	pHash->nBucketSize = 0;
	pHash->pAllocator = 0;
	return SXRET_OK;
}
static SyHashEntry_Pr * HashGetEntry(SyHash *pHash,const void *pKey,sxu32 nKeyLen)
{
	SyHashEntry_Pr *pEntry;
	sxu32 nHash;

	nHash = pHash->xHash(pKey,nKeyLen);
	pEntry = pHash->apBucket[nHash & (pHash->nBucketSize - 1)];
	for(;;){
		if( pEntry == 0 ){
			break;
		}
		if( pEntry->nHash == nHash && pEntry->nKeyLen == nKeyLen && 
			pHash->xCmp(pEntry->pKey,pKey,nKeyLen) == 0 ){
				return pEntry;
		}
		pEntry = pEntry->pNextCollide;
	}
	/* Entry not found */
	return 0;
}
PH7_PRIVATE SyHashEntry * SyHashGet(SyHash *pHash,const void *pKey,sxu32 nKeyLen)
{
	SyHashEntry_Pr *pEntry;
#if defined(UNTRUST)
	if( INVALID_HASH(pHash) ){
		return 0;
	}
#endif
	if( pHash->nEntry < 1 || nKeyLen < 1 ){
		/* Don't bother hashing,return immediately */
		return 0;
	}
	pEntry = HashGetEntry(&(*pHash),pKey,nKeyLen);
	if( pEntry == 0 ){
		return 0;
	}
	return (SyHashEntry *)pEntry;
}
static sxi32 HashDeleteEntry(SyHash *pHash,SyHashEntry_Pr *pEntry,void **ppUserData)
{
	sxi32 rc;
	if( pEntry->pPrevCollide == 0 ){
		pHash->apBucket[pEntry->nHash & (pHash->nBucketSize - 1)] = pEntry->pNextCollide;
	}else{
		pEntry->pPrevCollide->pNextCollide = pEntry->pNextCollide;
	}
	if( pEntry->pNextCollide ){
		pEntry->pNextCollide->pPrevCollide = pEntry->pPrevCollide;
	}
	MACRO_LD_REMOVE(pHash->pList,pEntry);
	pHash->nEntry--;
	if( ppUserData ){
		/* Write a pointer to the user data */
		*ppUserData = pEntry->pUserData;
	}
	/* Release the entry */
	rc = SyMemBackendPoolFree(pHash->pAllocator,pEntry);
	return rc;
}
PH7_PRIVATE sxi32 SyHashDeleteEntry(SyHash *pHash,const void *pKey,sxu32 nKeyLen,void **ppUserData)
{
	SyHashEntry_Pr *pEntry;
	sxi32 rc;
#if defined(UNTRUST)
	if( INVALID_HASH(pHash) ){
		return SXERR_CORRUPT;
	}
#endif
	pEntry = HashGetEntry(&(*pHash),pKey,nKeyLen);
	if( pEntry == 0 ){
		return SXERR_NOTFOUND;
	}
	rc = HashDeleteEntry(&(*pHash),pEntry,ppUserData);
	return rc;
}
PH7_PRIVATE sxi32 SyHashDeleteEntry2(SyHashEntry *pEntry)
{
	SyHashEntry_Pr *pPtr = (SyHashEntry_Pr *)pEntry;
	sxi32 rc;
#if defined(UNTRUST)
	if( pPtr == 0 || INVALID_HASH(pPtr->pHash) ){
		return SXERR_CORRUPT;
	}
#endif
	rc = HashDeleteEntry(pPtr->pHash,pPtr,0);
	return rc;
}
PH7_PRIVATE sxi32 SyHashResetLoopCursor(SyHash *pHash)
{
#if defined(UNTRUST)
	if( INVALID_HASH(pHash)  ){
		return SXERR_CORRUPT;
	}
#endif
	pHash->pCurrent = pHash->pList;
	return SXRET_OK;
}
PH7_PRIVATE SyHashEntry * SyHashGetNextEntry(SyHash *pHash)
{
	SyHashEntry_Pr *pEntry;
#if defined(UNTRUST)
	if( INVALID_HASH(pHash) ){
		return 0;
	}
#endif
	if( pHash->pCurrent == 0 || pHash->nEntry <= 0 ){
		pHash->pCurrent = pHash->pList;
		return 0;
	}
	pEntry = pHash->pCurrent;
	/* Advance the cursor */
	pHash->pCurrent = pEntry->pNext;
	/* Return the current entry */
	return (SyHashEntry *)pEntry;
}
PH7_PRIVATE sxi32 SyHashForEach(SyHash *pHash,sxi32 (*xStep)(SyHashEntry *,void *),void *pUserData)
{
	SyHashEntry_Pr *pEntry;
	sxi32 rc;
	sxu32 n;
#if defined(UNTRUST)
	if( INVALID_HASH(pHash) || xStep == 0){
		return 0;
	}
#endif
	pEntry = pHash->pList;
	for( n = 0 ; n < pHash->nEntry ; n++ ){
		/* Invoke the callback */
		rc = xStep((SyHashEntry *)pEntry,pUserData);
		if( rc != SXRET_OK ){
			return rc;
		}
		/* Point to the next entry */
		pEntry = pEntry->pNext;
	}
	return SXRET_OK;
}
static sxi32 HashGrowTable(SyHash *pHash)
{
	sxu32 nNewSize = pHash->nBucketSize * 2;
	SyHashEntry_Pr *pEntry;
	SyHashEntry_Pr **apNew;
	sxu32 n,iBucket;

	/* Allocate a new larger table */
	apNew = (SyHashEntry_Pr **)SyMemBackendAlloc(pHash->pAllocator,nNewSize * sizeof(SyHashEntry_Pr *));
	if( apNew == 0 ){
		/* Not so fatal,simply a performance hit */
		return SXRET_OK;
	}
	/* Zero the new table */
	SyZero((void *)apNew,nNewSize * sizeof(SyHashEntry_Pr *));
	/* Rehash all entries */
	for( n = 0,pEntry = pHash->pList; n < pHash->nEntry ; n++  ){
		pEntry->pNextCollide = pEntry->pPrevCollide = 0;
		/* Install in the new bucket */
		iBucket = pEntry->nHash & (nNewSize - 1);
		pEntry->pNextCollide = apNew[iBucket];
		if( apNew[iBucket] != 0 ){
			apNew[iBucket]->pPrevCollide = pEntry;
		}
		apNew[iBucket] = pEntry;
		/* Point to the next entry */
		pEntry = pEntry->pNext;
	}
	/* Release the old table and reflect the change */
	SyMemBackendFree(pHash->pAllocator,(void *)pHash->apBucket);
	pHash->apBucket = apNew;
	pHash->nBucketSize = nNewSize;
	return SXRET_OK;
}
static sxi32 HashInsert(SyHash *pHash,SyHashEntry_Pr *pEntry)
{
	sxu32 iBucket = pEntry->nHash & (pHash->nBucketSize - 1);
	/* Insert the entry in its corresponding bcuket */
	pEntry->pNextCollide = pHash->apBucket[iBucket];
	if( pHash->apBucket[iBucket] != 0 ){
		pHash->apBucket[iBucket]->pPrevCollide = pEntry;
	}
	pHash->apBucket[iBucket] = pEntry;
	/* Link to the entry list */
	MACRO_LD_PUSH(pHash->pList,pEntry);
	if( pHash->nEntry == 0 ){
		pHash->pCurrent = pHash->pList;
	}
	pHash->nEntry++;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyHashInsert(SyHash *pHash,const void *pKey,sxu32 nKeyLen,void *pUserData)
{
	SyHashEntry_Pr *pEntry;
	sxi32 rc;
#if defined(UNTRUST)
	if( INVALID_HASH(pHash) || pKey == 0 ){
		return SXERR_CORRUPT;
	}
#endif
	if( pHash->nEntry >= pHash->nBucketSize * SXHASH_FILL_FACTOR ){
		rc = HashGrowTable(&(*pHash));
		if( rc != SXRET_OK ){
			return rc;
		}
	}
	/* Allocate a new hash entry */
	pEntry = (SyHashEntry_Pr *)SyMemBackendPoolAlloc(pHash->pAllocator,sizeof(SyHashEntry_Pr));
	if( pEntry == 0 ){
		return SXERR_MEM;
	}
	/* Zero the entry */
	SyZero(pEntry,sizeof(SyHashEntry_Pr));
	pEntry->pHash = pHash;
	pEntry->pKey = pKey;
	pEntry->nKeyLen = nKeyLen;
	pEntry->pUserData = pUserData;
	pEntry->nHash = pHash->xHash(pEntry->pKey,pEntry->nKeyLen);
	/* Finally insert the entry in its corresponding bucket */
	rc = HashInsert(&(*pHash),pEntry);
	return rc;
}
PH7_PRIVATE SyHashEntry * SyHashLastEntry(SyHash *pHash)
{
#if defined(UNTRUST)
	if( INVALID_HASH(pHash) ){
		return 0;
	}
#endif
	/* Last inserted entry */
	return (SyHashEntry *)pHash->pList;
}
/* SyRunTimeApi:sxutils.c */
PH7_PRIVATE sxi32 SyStrIsNumeric(const char *zSrc,sxu32 nLen,sxu8 *pReal,const char  **pzTail)
{
	const char *zCur,*zEnd;
#ifdef UNTRUST
	if( SX_EMPTY_STR(zSrc) ){
		return SXERR_EMPTY;
	}
#endif
	zEnd = &zSrc[nLen];
	/* Jump leading white spaces */
	while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0  && SyisSpace(zSrc[0]) ){
		zSrc++;
	}
	if( zSrc < zEnd && (zSrc[0] == '+' || zSrc[0] == '-') ){
		zSrc++;
	}
	zCur = zSrc;
	if( pReal ){
		*pReal = FALSE;
	}
	for(;;){
		if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
		if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
		if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
		if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
	};
	if( zSrc < zEnd && zSrc > zCur ){
		int c = zSrc[0];
		if( c == '.' ){
			zSrc++;
			if( pReal ){
				*pReal = TRUE;
			}
			if( pzTail ){
				while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0 && SyisDigit(zSrc[0]) ){
					zSrc++;
				}
				if( zSrc < zEnd && (zSrc[0] == 'e' || zSrc[0] == 'E') ){
					zSrc++;
					if( zSrc < zEnd && (zSrc[0] == '+' || zSrc[0] == '-') ){
						zSrc++;
					}
					while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0 && SyisDigit(zSrc[0]) ){
						zSrc++;
					}
				}
			}
		}else if( c == 'e' || c == 'E' ){
			zSrc++;
			if( pReal ){
				*pReal = TRUE;
			}
			if( pzTail ){
				if( zSrc < zEnd && (zSrc[0] == '+' || zSrc[0] == '-') ){
					zSrc++;
				}
				while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0 && SyisDigit(zSrc[0]) ){
					zSrc++;
				}
			}
		}
	}
	if( pzTail ){
		/* Point to the non numeric part */
		*pzTail = zSrc;
	}
	return zSrc > zCur ? SXRET_OK /* String prefix is numeric */ : SXERR_INVALID /* Not a digit stream */;
}
#define SXINT32_MIN_STR		"2147483648"
#define SXINT32_MAX_STR		"2147483647"
#define SXINT64_MIN_STR		"9223372036854775808"
#define SXINT64_MAX_STR		"9223372036854775807"
PH7_PRIVATE sxi32 SyStrToInt32(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
	int isNeg = FALSE;
	const char *zEnd;
	sxi32 nVal = 0;
	sxi16 i;
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zSrc) ){
		if( pOutVal ){
			*(sxi32 *)pOutVal = 0;
		}
		return SXERR_EMPTY;
	}
#endif
	zEnd = &zSrc[nLen];
	while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++;
	}
	if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
		isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
		zSrc++;
	}
	/* Skip leading zero */
	while(zSrc < zEnd && zSrc[0] == '0' ){
		zSrc++; 
	}
	i = 10;
	if( (sxu32)(zEnd-zSrc) >= 10 ){
		/* Handle overflow */
		i = SyMemcmp(zSrc,(isNeg == TRUE) ? SXINT32_MIN_STR : SXINT32_MAX_STR,nLen) <= 0 ? 10 : 9; 
	}
	for(;;){
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
	}
	/* Skip trailing spaces */
	while(zSrc < zEnd && SyisSpace(zSrc[0])){
		zSrc++;
	}
	if( zRest ){
		*zRest = (char *)zSrc;
	}	
	if( pOutVal ){
		if( isNeg == TRUE && nVal != 0 ){
			nVal = -nVal;
		}
		*(sxi32 *)pOutVal = nVal;
	}
	return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
	int isNeg = FALSE;
	const char *zEnd;
	sxi64 nVal;
	sxi16 i;
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zSrc) ){
		if( pOutVal ){
			*(sxi32 *)pOutVal = 0;
		}
		return SXERR_EMPTY;
	}
#endif
	zEnd = &zSrc[nLen];
	while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++;
	}
	if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
		isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
		zSrc++;
	}
	/* Skip leading zero */
	while(zSrc < zEnd && zSrc[0] == '0' ){
		zSrc++;
	}
	i = 19;
	if( (sxu32)(zEnd-zSrc) >= 19 ){
		i = SyMemcmp(zSrc,isNeg ? SXINT64_MIN_STR : SXINT64_MAX_STR,19) <= 0 ? 19 : 18 ;
	}
	nVal = 0;
	for(;;){
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
		if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
	}
	/* Skip trailing spaces */
	while(zSrc < zEnd && SyisSpace(zSrc[0])){
		zSrc++;
	}
	if( zRest ){
		*zRest = (char *)zSrc;
	}	
	if( pOutVal ){
		if( isNeg == TRUE && nVal != 0 ){
			nVal = -nVal;
		}
		*(sxi64 *)pOutVal = nVal;
	}
	return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyHexToint(sxi32 c)
{
	switch(c){
	case '0': return 0;
	case '1': return 1;
	case '2': return 2;
	case '3': return 3;
	case '4': return 4;
	case '5': return 5;
	case '6': return 6;
	case '7': return 7;
	case '8': return 8;
	case '9': return 9;
	case 'A': case 'a': return 10;
	case 'B': case 'b': return 11;
	case 'C': case 'c': return 12;
	case 'D': case 'd': return 13;
	case 'E': case 'e': return 14;
	case 'F': case 'f': return 15;
	}
	return -1; 	
}
PH7_PRIVATE sxi32 SyHexStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
	const char *zIn,*zEnd;
	int isNeg = FALSE;
	sxi64 nVal = 0;
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zSrc) ){
		if( pOutVal ){
			*(sxi32 *)pOutVal = 0;
		}
		return SXERR_EMPTY;
	}
#endif
	zEnd = &zSrc[nLen];
	while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++;
	}
	if( zSrc < zEnd && ( *zSrc == '-' || *zSrc == '+' ) ){
		isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
		zSrc++;
	}
	if( zSrc < &zEnd[-2] && zSrc[0] == '0' && (zSrc[1] == 'x' || zSrc[1] == 'X') ){
		/* Bypass hex prefix */
		zSrc += sizeof(char) * 2;
	}	
	/* Skip leading zero */
	while(zSrc < zEnd && zSrc[0] == '0' ){
		zSrc++;
	}
	zIn = zSrc;
	for(;;){
		if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]);  zSrc++ ;
		if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]);  zSrc++ ;
		if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]);  zSrc++ ;
		if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]);  zSrc++ ;
	}
	while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++;
	}	
	if( zRest ){
		*zRest = zSrc;
	}
	if( pOutVal ){
		if( isNeg == TRUE && nVal != 0 ){
			nVal = -nVal;
		}
		*(sxi64 *)pOutVal = nVal;
	}
	return zSrc >= zEnd ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyOctalStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
	const char *zIn,*zEnd;
	int isNeg = FALSE;
	sxi64 nVal = 0;
	int c;
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zSrc) ){
		if( pOutVal ){
			*(sxi32 *)pOutVal = 0;
		}
		return SXERR_EMPTY;
	}
#endif
	zEnd = &zSrc[nLen];
	while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++;
	}
	if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
		isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
		zSrc++;
	}
	/* Skip leading zero */
	while(zSrc < zEnd && zSrc[0] == '0' ){
		zSrc++; 
	}
	zIn = zSrc;
	for(;;){
		if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 +  c; zSrc++;
		if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 +  c; zSrc++;
		if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 +  c; zSrc++;
		if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 +  c; zSrc++;
	}
	/* Skip trailing spaces */
	while(zSrc < zEnd && SyisSpace(zSrc[0])){
		zSrc++;
	}
	if( zRest ){
		*zRest = zSrc;
	}	
	if( pOutVal ){
		if( isNeg == TRUE && nVal != 0 ){
			nVal = -nVal;
		}
		*(sxi64 *)pOutVal = nVal;
	}
	return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyBinaryStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
	const char *zIn,*zEnd;
	int isNeg = FALSE;
	sxi64 nVal = 0;
	int c;
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zSrc) ){
		if( pOutVal ){
			*(sxi32 *)pOutVal = 0;
		}
		return SXERR_EMPTY;
	}
#endif
	zEnd = &zSrc[nLen];
	while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++;
	}
	if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
		isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
		zSrc++;
	}
	if( zSrc < &zEnd[-2] && zSrc[0] == '0' && (zSrc[1] == 'b' || zSrc[1] == 'B') ){
		/* Bypass binary prefix */
		zSrc += sizeof(char) * 2;
	}
	/* Skip leading zero */
	while(zSrc < zEnd && zSrc[0] == '0' ){
		zSrc++; 
	}
	zIn = zSrc;
	for(;;){
		if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
		if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
		if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
		if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
	}
	/* Skip trailing spaces */
	while(zSrc < zEnd && SyisSpace(zSrc[0])){
		zSrc++;
	}
	if( zRest ){
		*zRest = zSrc;
	}	
	if( pOutVal ){
		if( isNeg == TRUE && nVal != 0 ){
			nVal = -nVal;
		}
		*(sxi64 *)pOutVal = nVal;
	}
	return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyStrToReal(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
#define SXDBL_DIG        15
#define SXDBL_MAX_EXP    308
#define SXDBL_MIN_EXP_PLUS	307
	static const sxreal aTab[] = {
	10,
	1.0e2,
	1.0e4,
	1.0e8,
	1.0e16,
	1.0e32,
	1.0e64,
	1.0e128,
	1.0e256
	};
	sxu8 neg = FALSE;
	sxreal Val = 0.0;
	const char *zEnd;
	sxi32 Lim,exp;
	sxreal *p = 0;
#ifdef UNTRUST
	if( SX_EMPTY_STR(zSrc)  ){
		if( pOutVal ){
			*(sxreal *)pOutVal = 0.0;
		}
		return SXERR_EMPTY;
	}
#endif
	zEnd = &zSrc[nLen];
	while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++; 
	}
	if( zSrc < zEnd && (zSrc[0] == '-' || zSrc[0] == '+' ) ){
		neg =  zSrc[0] == '-' ? TRUE : FALSE ;
		zSrc++;
	}
	Lim = SXDBL_DIG ;
	for(;;){
		if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
		if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
		if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
		if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
	}
	if( zSrc < zEnd && ( zSrc[0] == '.' || zSrc[0] == ',' ) ){
		sxreal dec = 1.0;
		zSrc++;
		for(;;){
			if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
			if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
			if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
			if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
		}
		Val /= dec;
	}
	if( neg == TRUE && Val != 0.0 ) {
		Val = -Val ; 
	}
	if( Lim <= 0 ){
		/* jump overflow digit */
		while( zSrc < zEnd ){
			if( zSrc[0] == 'e' || zSrc[0] == 'E' ){
				break;  
			}
			zSrc++;
		}
	}
	neg = FALSE;
	if( zSrc < zEnd && ( zSrc[0] == 'e' || zSrc[0] == 'E' ) ){
		zSrc++;
		if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+') ){
			neg = zSrc[0] == '-' ? TRUE : FALSE ;
			zSrc++;
		}
		exp = 0;
		while( zSrc < zEnd && SyisDigit(zSrc[0]) && exp < SXDBL_MAX_EXP ){
			exp = exp * 10 + (zSrc[0] - '0');
			zSrc++;
		}
		if( neg  ){
			if( exp > SXDBL_MIN_EXP_PLUS ) exp = SXDBL_MIN_EXP_PLUS ;
		}else if ( exp > SXDBL_MAX_EXP ){
			exp = SXDBL_MAX_EXP; 
		}		
		for( p = (sxreal *)aTab ; exp ; exp >>= 1 , p++ ){
			if( exp & 01 ){
				if( neg ){
					Val /= *p ;
				}else{
					Val *= *p;
				}
			}
		}
	}
	while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
		zSrc++;
	}
	if( zRest ){
		*zRest = zSrc; 
	}
	if( pOutVal ){
		*(sxreal *)pOutVal = Val;
	}
	return zSrc >= zEnd ? SXRET_OK : SXERR_SYNTAX;
}
/* SyRunTimeApi:sxlib.c  */
static sxu32 SyBinHash(const void *pSrc,sxu32 nLen)
{
	register unsigned char *zIn = (unsigned char *)pSrc;
	unsigned char *zEnd;
	sxu32 nH = 5381;
	zEnd = &zIn[nLen];
	for(;;){
		if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
		if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
		if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
		if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
	}	
	return nH;
}
PH7_PRIVATE sxu32 SyStrHash(const void *pSrc,sxu32 nLen)
{
	register unsigned char *zIn = (unsigned char *)pSrc;
	unsigned char *zEnd;
	sxu32 nH = 5381;	
	zEnd = &zIn[nLen];
	for(;;){
		if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
		if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
		if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
		if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
	}	
	return nH;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyBase64Encode(const char *zSrc,sxu32 nLen,ProcConsumer xConsumer,void *pUserData)
{
	static const unsigned char zBase64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
	unsigned char *zIn = (unsigned char *)zSrc;
	unsigned char z64[4];
	sxu32 i;
	sxi32 rc;
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zSrc) || xConsumer == 0){
		return SXERR_EMPTY;
	}
#endif
	for(i = 0; i + 2 < nLen; i += 3){
		z64[0] = zBase64[(zIn[i] >> 2) & 0x3F];
		z64[1] = zBase64[( ((zIn[i] & 0x03) << 4)   | (zIn[i+1] >> 4)) & 0x3F]; 
		z64[2] = zBase64[( ((zIn[i+1] & 0x0F) << 2) | (zIn[i + 2] >> 6) ) & 0x3F];
		z64[3] = zBase64[ zIn[i + 2] & 0x3F];
		
		rc = xConsumer((const void *)z64,sizeof(z64),pUserData);
		if( rc != SXRET_OK ){return SXERR_ABORT;}

	}	
	if ( i+1 < nLen ){
		z64[0] = zBase64[(zIn[i] >> 2) & 0x3F];
		z64[1] = zBase64[( ((zIn[i] & 0x03) << 4)   | (zIn[i+1] >> 4)) & 0x3F]; 
		z64[2] = zBase64[(zIn[i+1] & 0x0F) << 2 ];
		z64[3] = '=';
		
		rc = xConsumer((const void *)z64,sizeof(z64),pUserData);
		if( rc != SXRET_OK ){return SXERR_ABORT;}

	}else if( i < nLen ){
		z64[0] = zBase64[(zIn[i] >> 2) & 0x3F];
		z64[1]   = zBase64[(zIn[i] & 0x03) << 4];
		z64[2] = '=';
		z64[3] = '=';
		
		rc = xConsumer((const void *)z64,sizeof(z64),pUserData);
		if( rc != SXRET_OK ){return SXERR_ABORT;}
	}

	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBase64Decode(const char *zB64,sxu32 nLen,ProcConsumer xConsumer,void *pUserData)
{
	static const sxu32 aBase64Trans[] = {
	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
	0,0,0,0,0,62,0,0,0,63,52,53,54,55,56,57,58,59,60,61,0,0,0,0,0,0,0,0,1,2,3,4,
	5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,0,0,0,0,0,0,26,27,
	28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,0,0,
	0,0,0
	};
	sxu32 n,w,x,y,z;
	sxi32 rc;
	unsigned char zOut[10];
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zB64) || xConsumer == 0 ){
		return SXERR_EMPTY;
	}
#endif
	while(nLen > 0 && zB64[nLen - 1] == '=' ){
		nLen--;
	}
	for( n = 0 ; n+3<nLen ; n += 4){
		w = aBase64Trans[zB64[n] & 0x7F];
		x = aBase64Trans[zB64[n+1] & 0x7F];
		y = aBase64Trans[zB64[n+2] & 0x7F];
		z = aBase64Trans[zB64[n+3] & 0x7F];
		zOut[0] = ((w<<2) & 0xFC) | ((x>>4) & 0x03);
		zOut[1] = ((x<<4) & 0xF0) | ((y>>2) & 0x0F);
		zOut[2] = ((y<<6) & 0xC0) | (z & 0x3F);

		rc = xConsumer((const void *)zOut,sizeof(unsigned char)*3,pUserData);
		if( rc != SXRET_OK ){ return SXERR_ABORT;}
	}
	if( n+2 < nLen ){
		w = aBase64Trans[zB64[n] & 0x7F];
		x = aBase64Trans[zB64[n+1] & 0x7F];
		y = aBase64Trans[zB64[n+2] & 0x7F];

		zOut[0] = ((w<<2) & 0xFC) | ((x>>4) & 0x03);
		zOut[1] = ((x<<4) & 0xF0) | ((y>>2) & 0x0F);

		rc = xConsumer((const void *)zOut,sizeof(unsigned char)*2,pUserData);
		if( rc != SXRET_OK ){ return SXERR_ABORT;}
	}else if( n+1 < nLen ){
		w = aBase64Trans[zB64[n] & 0x7F];
		x = aBase64Trans[zB64[n+1] & 0x7F];

		zOut[0] = ((w<<2) & 0xFC) | ((x>>4) & 0x03);

		rc = xConsumer((const void *)zOut,sizeof(unsigned char)*1,pUserData);
		if( rc != SXRET_OK ){ return SXERR_ABORT;}
	}
	return SXRET_OK;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
#define INVALID_LEXER(LEX)	(  LEX == 0  || LEX->xTokenizer == 0 )
PH7_PRIVATE sxi32 SyLexInit(SyLex *pLex,SySet *pSet,ProcTokenizer xTokenizer,void *pUserData)
{
	SyStream *pStream;
#if defined (UNTRUST)
	if ( pLex == 0 || xTokenizer == 0 ){
		return SXERR_CORRUPT;
	}
#endif
	pLex->pTokenSet = 0;
	/* Initialize lexer fields */
	if( pSet ){
		if ( SySetElemSize(pSet) != sizeof(SyToken) ){
			return SXERR_INVALID;
		}
		pLex->pTokenSet = pSet;
	}
	pStream = &pLex->sStream;
	pLex->xTokenizer = xTokenizer;
	pLex->pUserData = pUserData;
	
	pStream->nLine = 1;
	pStream->nIgn  = 0;
	pStream->zText = pStream->zEnd = 0;
	pStream->pSet  = pSet;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyLexTokenizeInput(SyLex *pLex,const char *zInput,sxu32 nLen,void *pCtxData,ProcSort xSort,ProcCmp xCmp)
{
	const unsigned char *zCur;
	SyStream *pStream;
	SyToken sToken;
	sxi32 rc;
#if defined (UNTRUST)
	if ( INVALID_LEXER(pLex) || zInput == 0 ){
		return SXERR_CORRUPT;
	}
#endif
	pStream = &pLex->sStream;
	/* Point to the head of the input */
	pStream->zText = pStream->zInput = (const unsigned char *)zInput;
	/* Point to the end of the input */
	pStream->zEnd = &pStream->zInput[nLen];
	for(;;){
		if( pStream->zText >= pStream->zEnd ){
			/* End of the input reached */
			break;
		}
		zCur = pStream->zText;
		/* Call the tokenizer callback */
		rc = pLex->xTokenizer(pStream,&sToken,pLex->pUserData,pCtxData);
		if( rc != SXRET_OK && rc != SXERR_CONTINUE ){
			/* Tokenizer callback request an operation abort */
			if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
			break;
		}
		if( rc == SXERR_CONTINUE ){
			/* Request to ignore this token */
			pStream->nIgn++;
		}else if( pLex->pTokenSet  ){
			/* Put the token in the set */
			rc = SySetPut(pLex->pTokenSet,(const void *)&sToken);
			if( rc != SXRET_OK ){
				break;
			}
		}
		if( zCur >= pStream->zText ){
			/* Automatic advance of the stream cursor */
			pStream->zText = &zCur[1];
		}
	}
	if( xSort &&  pLex->pTokenSet ){
		SyToken *aToken = (SyToken *)SySetBasePtr(pLex->pTokenSet);
		/* Sort the extrated tokens */
		if( xCmp == 0 ){
			/* Use a default comparison function */
			xCmp = SyMemcmp;
		}
		xSort(aToken,SySetUsed(pLex->pTokenSet),sizeof(SyToken),xCmp);
	}
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyLexRelease(SyLex *pLex)
{
	sxi32 rc = SXRET_OK;
#if defined (UNTRUST)
	if ( INVALID_LEXER(pLex) ){
		return SXERR_CORRUPT;
	}
#else
	SXUNUSED(pLex); /* Prevent compiler warning */
#endif
	return rc;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
#define SAFE_HTTP(C)	(SyisAlphaNum(c) || c == '_' || c == '-' || c == '$' || c == '.' )
PH7_PRIVATE sxi32 SyUriEncode(const char *zSrc,sxu32 nLen,ProcConsumer xConsumer,void *pUserData)
{
	unsigned char *zIn = (unsigned char *)zSrc;
	unsigned char zHex[3] = { '%',0,0 };
	unsigned char zOut[2];
	unsigned char *zCur,*zEnd;
	sxi32 c;
	sxi32 rc;
#ifdef UNTRUST
	if( SX_EMPTY_STR(zSrc) || xConsumer == 0 ){
		return SXERR_EMPTY;
	}
#endif
	rc = SXRET_OK;
	zEnd = &zIn[nLen]; zCur = zIn;
	for(;;){
		if( zCur >= zEnd ){
			if( zCur != zIn ){
				rc = xConsumer(zIn,(sxu32)(zCur-zIn),pUserData);
			}
			break;
		}
		c = zCur[0];
		if( SAFE_HTTP(c) ){
			zCur++; continue;
		}
		if( zCur != zIn && SXRET_OK != (rc = xConsumer(zIn,(sxu32)(zCur-zIn),pUserData))){
			break;
		}		
		if( c == ' ' ){
			zOut[0] = '+';
			rc = xConsumer((const void *)zOut,sizeof(unsigned char),pUserData);
		}else{
			zHex[1]	= "0123456789ABCDEF"[(c >> 4) & 0x0F];
			zHex[2] = "0123456789ABCDEF"[c & 0x0F];
			rc = xConsumer(zHex,sizeof(zHex),pUserData);
		}
		if( SXRET_OK != rc ){
			break;
		}				
		zIn = &zCur[1]; zCur = zIn ;
	}
	return rc == SXRET_OK ? SXRET_OK : SXERR_ABORT;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
static sxi32 SyAsciiToHex(sxi32 c)
{
	if( c >= 'a' && c <= 'f' ){
		c += 10 - 'a';
		return c;
	}
	if( c >= '0' && c <= '9' ){
		c -= '0';
		return c;
	}
	if( c >= 'A' && c <= 'F') {
		c += 10 - 'A';
		return c;
	}		
	return 0; 
}
PH7_PRIVATE sxi32 SyUriDecode(const char *zSrc,sxu32 nLen,ProcConsumer xConsumer,void *pUserData,int bUTF8)
{
	static const sxu8 Utf8Trans[] = {
		0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
		0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
		0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
		0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
		0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
		0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
		0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
		0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00
	};
	const char *zIn = zSrc;
	const char *zEnd;
	const char *zCur;
	sxu8 *zOutPtr;
	sxu8 zOut[10];
	sxi32 c,d;
	sxi32 rc;
#if defined(UNTRUST)
	if( SX_EMPTY_STR(zSrc) || xConsumer == 0 ){
		return SXERR_EMPTY;
	}
#endif
	rc = SXRET_OK;
	zEnd = &zSrc[nLen];
	zCur = zIn;
	for(;;){
		while(zCur < zEnd && zCur[0] != '%' && zCur[0] != '+' ){
			zCur++;
		}
		if( zCur != zIn ){
			/* Consume input */
			rc = xConsumer(zIn,(unsigned int)(zCur-zIn),pUserData);
			if( rc != SXRET_OK ){
				/* User consumer routine request an operation abort */
				break;
			}
		}
		if( zCur >= zEnd ){
			rc = SXRET_OK;
			break;
		}
		/* Decode unsafe HTTP characters */
		zOutPtr = zOut;
		if( zCur[0] == '+' ){
			*zOutPtr++ = ' ';
			zCur++;
		}else{
			if( &zCur[2] >= zEnd ){
				rc = SXERR_OVERFLOW;
				break;
			}
			c = (SyAsciiToHex(zCur[1]) <<4) | SyAsciiToHex(zCur[2]);
			zCur += 3;
			if( c < 0x000C0 ){
				*zOutPtr++ = (sxu8)c;
			}else{
				c = Utf8Trans[c-0xC0];
				while( zCur[0] == '%' ){
					d = (SyAsciiToHex(zCur[1]) <<4) | SyAsciiToHex(zCur[2]);
					if( (d&0xC0) != 0x80 ){
						break;
					}
					c = (c<<6) + (0x3f & d);
					zCur += 3;
				}
				if( bUTF8 == FALSE ){
					*zOutPtr++ = (sxu8)c;
				}else{
					SX_WRITE_UTF8(zOutPtr,c);
				}
			}
			
		}
		/* Consume the decoded characters */
		rc = xConsumer((const void *)zOut,(unsigned int)(zOutPtr-zOut),pUserData);
		if( rc != SXRET_OK ){
			break;
		}
		/* Synchronize pointers */
		zIn = zCur;
	}
	return rc;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
static const char *zEngDay[] = { 
	"Sunday","Monday","Tuesday","Wednesday",
	"Thursday","Friday","Saturday"
};
static const char *zEngMonth[] = {
	"January","February","March","April",
	"May","June","July","August",
	"September","October","November","December"
};
static const char * GetDay(sxi32 i)
{
	return zEngDay[ i % 7 ];
}
static const char * GetMonth(sxi32 i)
{
	return zEngMonth[ i % 12 ];
}
PH7_PRIVATE const char * SyTimeGetDay(sxi32 iDay)
{
	return GetDay(iDay);
}
PH7_PRIVATE const char * SyTimeGetMonth(sxi32 iMonth)
{
	return GetMonth(iMonth);
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
/* SyRunTimeApi: sxfmt.c */
#define SXFMT_BUFSIZ 1024 /* Conversion buffer size */
/*
** Conversion types fall into various categories as defined by the
** following enumeration.
*/
#define SXFMT_RADIX       1 /* Integer types.%d, %x, %o, and so forth */
#define SXFMT_FLOAT       2 /* Floating point.%f */
#define SXFMT_EXP         3 /* Exponentional notation.%e and %E */
#define SXFMT_GENERIC     4 /* Floating or exponential, depending on exponent.%g */
#define SXFMT_SIZE        5 /* Total number of characters processed so far.%n */
#define SXFMT_STRING      6 /* Strings.%s */
#define SXFMT_PERCENT     7 /* Percent symbol.%% */
#define SXFMT_CHARX       8 /* Characters.%c */
#define SXFMT_ERROR       9 /* Used to indicate no such conversion type */
/* Extension by Symisc Systems */
#define SXFMT_RAWSTR     13 /* %z Pointer to raw string (SyString *) */
#define SXFMT_UNUSED     15 
/*
** Allowed values for SyFmtInfo.flags
*/
#define SXFLAG_SIGNED	0x01
#define SXFLAG_UNSIGNED 0x02
/* Allowed values for SyFmtConsumer.nType */
#define SXFMT_CONS_PROC		1	/* Consumer is a procedure */
#define SXFMT_CONS_STR		2	/* Consumer is a managed string */
#define SXFMT_CONS_FILE		5	/* Consumer is an open File */
#define SXFMT_CONS_BLOB		6	/* Consumer is a BLOB */
/*
** Each builtin conversion character (ex: the 'd' in "%d") is described
** by an instance of the following structure
*/
typedef struct SyFmtInfo SyFmtInfo;
struct SyFmtInfo
{
  char fmttype;  /* The format field code letter [i.e: 'd','s','x'] */
  sxu8 base;     /* The base for radix conversion */
  int flags;    /* One or more of SXFLAG_ constants below */
  sxu8 type;     /* Conversion paradigm */
  const char *charset; /* The character set for conversion */
  const char *prefix;  /* Prefix on non-zero values in alt format */
};
typedef struct SyFmtConsumer SyFmtConsumer;
struct SyFmtConsumer
{
	sxu32 nLen; /* Total output length */
	sxi32 nType; /* Type of the consumer see below */
	sxi32 rc;	/* Consumer return value;Abort processing if rc != SXRET_OK */
 union{
	struct{	
	ProcConsumer xUserConsumer;
	void *pUserData;
	}sFunc;  
	SyBlob *pBlob;
 }uConsumer;	
}; 
#ifndef SX_OMIT_FLOATINGPOINT
static int getdigit(sxlongreal *val,int *cnt)
{
  sxlongreal d;
  int digit;

  if( (*cnt)++ >= 16 ){
	  return '0';
  }
  digit = (int)*val;
  d = digit;
   *val = (*val - d)*10.0;
  return digit + '0' ;
}
#endif /* SX_OMIT_FLOATINGPOINT */
/*
 * The following routine was taken from the SQLITE2 source tree and was
 * extended by Symisc Systems to fit its need.
 * Status: Public Domain
 */
static sxi32 InternFormat(ProcConsumer xConsumer,void *pUserData,const char *zFormat,va_list ap)
{
	/*
	 * The following table is searched linearly, so it is good to put the most frequently
	 * used conversion types first.
	 */
static const SyFmtInfo aFmt[] = {
  {  'd', 10, SXFLAG_SIGNED, SXFMT_RADIX, "0123456789",0    },
  {  's',  0, 0, SXFMT_STRING,     0,                  0    },
  {  'c',  0, 0, SXFMT_CHARX,      0,                  0    },
  {  'x', 16, 0, SXFMT_RADIX,      "0123456789abcdef", "x0" },
  {  'X', 16, 0, SXFMT_RADIX,      "0123456789ABCDEF", "X0" },
         /* -- Extensions by Symisc Systems -- */
  {  'z',  0, 0, SXFMT_RAWSTR,     0,                   0   }, /* Pointer to a raw string (SyString *) */
  {  'B',  2, 0, SXFMT_RADIX,      "01",                "b0"},
         /* -- End of Extensions -- */
  {  'o',  8, 0, SXFMT_RADIX,      "01234567",         "0"  },
  {  'u', 10, 0, SXFMT_RADIX,      "0123456789",       0    },
#ifndef SX_OMIT_FLOATINGPOINT
  {  'f',  0, SXFLAG_SIGNED, SXFMT_FLOAT,       0,     0    },
  {  'e',  0, SXFLAG_SIGNED, SXFMT_EXP,        "e",    0    },
  {  'E',  0, SXFLAG_SIGNED, SXFMT_EXP,        "E",    0    },
  {  'g',  0, SXFLAG_SIGNED, SXFMT_GENERIC,    "e",    0    },
  {  'G',  0, SXFLAG_SIGNED, SXFMT_GENERIC,    "E",    0    },
#endif
  {  'i', 10, SXFLAG_SIGNED, SXFMT_RADIX,"0123456789", 0    },
  {  'n',  0, 0, SXFMT_SIZE,       0,                  0    },
  {  '%',  0, 0, SXFMT_PERCENT,    0,                  0    },
  {  'p', 10, 0, SXFMT_RADIX,      "0123456789",       0    }
};
  int c;                     /* Next character in the format string */
  char *bufpt;               /* Pointer to the conversion buffer */
  int precision;             /* Precision of the current field */
  int length;                /* Length of the field */
  int idx;                   /* A general purpose loop counter */
  int width;                 /* Width of the current field */
  sxu8 flag_leftjustify;   /* True if "-" flag is present */
  sxu8 flag_plussign;      /* True if "+" flag is present */
  sxu8 flag_blanksign;     /* True if " " flag is present */
  sxu8 flag_alternateform; /* True if "#" flag is present */
  sxu8 flag_zeropad;       /* True if field width constant starts with zero */
  sxu8 flag_long;          /* True if "l" flag is present */
  sxi64 longvalue;         /* Value for integer types */
  const SyFmtInfo *infop;  /* Pointer to the appropriate info structure */
  char buf[SXFMT_BUFSIZ];  /* Conversion buffer */
  char prefix;             /* Prefix character."+" or "-" or " " or '\0'.*/
  sxu8 errorflag = 0;      /* True if an error is encountered */
  sxu8 xtype;              /* Conversion paradigm */
  char *zExtra;    
  static char spaces[] = "                                                  ";
#define etSPACESIZE ((int)sizeof(spaces)-1)
#ifndef SX_OMIT_FLOATINGPOINT
  sxlongreal realvalue;    /* Value for real types */
  int  exp;                /* exponent of real numbers */
  double rounder;          /* Used for rounding floating point values */
  sxu8 flag_dp;            /* True if decimal point should be shown */
  sxu8 flag_rtz;           /* True if trailing zeros should be removed */
  sxu8 flag_exp;           /* True to force display of the exponent */
  int nsd;                 /* Number of significant digits returned */
#endif
  int rc;

  length = 0;
  bufpt = 0;
  for(; (c=(*zFormat))!=0; ++zFormat){
    if( c!='%' ){
      unsigned int amt;
      bufpt = (char *)zFormat;
      amt = 1;
      while( (c=(*++zFormat))!='%' && c!=0 ) amt++;
	  rc = xConsumer((const void *)bufpt,amt,pUserData);
	  if( rc != SXRET_OK ){
		  return SXERR_ABORT; /* Consumer routine request an operation abort */
	  }
      if( c==0 ){
		  return errorflag > 0 ? SXERR_FORMAT : SXRET_OK;
	  }
    }
    if( (c=(*++zFormat))==0 ){
      errorflag = 1;
	  rc = xConsumer("%",sizeof("%")-1,pUserData);
	  if( rc != SXRET_OK ){
		  return SXERR_ABORT; /* Consumer routine request an operation abort */
	  }
      return errorflag > 0 ? SXERR_FORMAT : SXRET_OK;
    }
    /* Find out what flags are present */
    flag_leftjustify = flag_plussign = flag_blanksign = 
     flag_alternateform = flag_zeropad = 0;
    do{
      switch( c ){
        case '-':   flag_leftjustify = 1;     c = 0;   break;
        case '+':   flag_plussign = 1;        c = 0;   break;
        case ' ':   flag_blanksign = 1;       c = 0;   break;
        case '#':   flag_alternateform = 1;   c = 0;   break;
        case '0':   flag_zeropad = 1;         c = 0;   break;
        default:                                       break;
      }
    }while( c==0 && (c=(*++zFormat))!=0 );
    /* Get the field width */
    width = 0;
    if( c=='*' ){
      width = va_arg(ap,int);
      if( width<0 ){
        flag_leftjustify = 1;
        width = -width;
      }
      c = *++zFormat;
    }else{
      while( c>='0' && c<='9' ){
        width = width*10 + c - '0';
        c = *++zFormat;
      }
    }
    if( width > SXFMT_BUFSIZ-10 ){
      width = SXFMT_BUFSIZ-10;
    }
    /* Get the precision */
	precision = -1;
    if( c=='.' ){
      precision = 0;
      c = *++zFormat;
      if( c=='*' ){
        precision = va_arg(ap,int);
        if( precision<0 ) precision = -precision;
        c = *++zFormat;
      }else{
        while( c>='0' && c<='9' ){
          precision = precision*10 + c - '0';
          c = *++zFormat;
        }
      }
    }
    /* Get the conversion type modifier */
	flag_long = 0;
    if( c=='l' || c == 'q' /* BSD quad (expect a 64-bit integer) */ ){
      flag_long = (c == 'q') ? 2 : 1;
      c = *++zFormat;
	  if( c == 'l' ){
		  /* Standard printf emulation 'lld' (expect a 64bit integer) */
		  flag_long = 2;
	  }
    }
    /* Fetch the info entry for the field */
    infop = 0;
    xtype = SXFMT_ERROR;
	for(idx=0; idx< (int)SX_ARRAYSIZE(aFmt); idx++){
      if( c==aFmt[idx].fmttype ){
        infop = &aFmt[idx];
		xtype = infop->type;
        break;
      }
    }
    zExtra = 0;

    /*
    ** At this point, variables are initialized as follows:
    **
    **   flag_alternateform          TRUE if a '#' is present.
    **   flag_plussign               TRUE if a '+' is present.
    **   flag_leftjustify            TRUE if a '-' is present or if the
    **                               field width was negative.
    **   flag_zeropad                TRUE if the width began with 0.
    **   flag_long                   TRUE if the letter 'l' (ell) or 'q'(BSD quad) prefixed
    **                               the conversion character.
    **   flag_blanksign              TRUE if a ' ' is present.
    **   width                       The specified field width.This is
    **                               always non-negative.Zero is the default.
    **   precision                   The specified precision.The default
    **                               is -1.
    **   xtype                       The class of the conversion.
    **   infop                       Pointer to the appropriate info struct.
    */
    switch( xtype ){
      case SXFMT_RADIX:
        if( flag_long > 0 ){
			if( flag_long > 1 ){
				/* BSD quad: expect a 64-bit integer */
				longvalue = va_arg(ap,sxi64);
			}else{
				longvalue = va_arg(ap,sxlong);
			}
		}else{
			if( infop->flags & SXFLAG_SIGNED ){
				longvalue = va_arg(ap,sxi32);
			}else{
				longvalue = va_arg(ap,sxu32);
			}
		}
		/* Limit the precision to prevent overflowing buf[] during conversion */
      if( precision>SXFMT_BUFSIZ-40 ) precision = SXFMT_BUFSIZ-40;
#if 1
        /* For the format %#x, the value zero is printed "0" not "0x0".
        ** I think this is stupid.*/
        if( longvalue==0 ) flag_alternateform = 0;
#else
        /* More sensible: turn off the prefix for octal (to prevent "00"),
        ** but leave the prefix for hex.*/
        if( longvalue==0 && infop->base==8 ) flag_alternateform = 0;
#endif
        if( infop->flags & SXFLAG_SIGNED ){
          if( longvalue<0 ){ 
            longvalue = -longvalue;
			/* Ticket 1433-003 */
			if( longvalue < 0 ){
				/* Overflow */
				longvalue= SXI64_HIGH;
			}
            prefix = '-';
          }else if( flag_plussign )  prefix = '+';
          else if( flag_blanksign )  prefix = ' ';
          else                       prefix = 0;
        }else{
			if( longvalue<0 ){
				longvalue = -longvalue;
				/* Ticket 1433-003 */
				if( longvalue < 0 ){
					/* Overflow */
					longvalue= SXI64_HIGH;
				}
			}
			prefix = 0;
		}
        if( flag_zeropad && precision<width-(prefix!=0) ){
          precision = width-(prefix!=0);
        }
        bufpt = &buf[SXFMT_BUFSIZ-1];
        {
          register const char *cset;      /* Use registers for speed */
          register int base;
          cset = infop->charset;
          base = infop->base;
          do{                                           /* Convert to ascii */
            *(--bufpt) = cset[longvalue%base];
            longvalue = longvalue/base;
          }while( longvalue>0 );
        }
        length = &buf[SXFMT_BUFSIZ-1]-bufpt;
        for(idx=precision-length; idx>0; idx--){
          *(--bufpt) = '0';                             /* Zero pad */
        }
        if( prefix ) *(--bufpt) = prefix;               /* Add sign */
        if( flag_alternateform && infop->prefix ){      /* Add "0" or "0x" */
          const char *pre;
		  char x;
          pre = infop->prefix;
          if( *bufpt!=pre[0] ){
            for(pre=infop->prefix; (x=(*pre))!=0; pre++) *(--bufpt) = x;
          }
        }
        length = &buf[SXFMT_BUFSIZ-1]-bufpt;
        break;
      case SXFMT_FLOAT:
      case SXFMT_EXP:
      case SXFMT_GENERIC:
#ifndef SX_OMIT_FLOATINGPOINT
		realvalue = va_arg(ap,double);
        if( precision<0 ) precision = 6;         /* Set default precision */
        if( precision>SXFMT_BUFSIZ-40) precision = SXFMT_BUFSIZ-40;
        if( realvalue<0.0 ){
          realvalue = -realvalue;
          prefix = '-';
        }else{
          if( flag_plussign )          prefix = '+';
          else if( flag_blanksign )    prefix = ' ';
          else                         prefix = 0;
        }
        if( infop->type==SXFMT_GENERIC && precision>0 ) precision--;
        rounder = 0.0;
#if 0
        /* Rounding works like BSD when the constant 0.4999 is used.Wierd! */
        for(idx=precision, rounder=0.4999; idx>0; idx--, rounder*=0.1);
#else
        /* It makes more sense to use 0.5 */
        for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1);
#endif
        if( infop->type==SXFMT_FLOAT ) realvalue += rounder;
        /* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
        exp = 0;
        if( realvalue>0.0 ){
          while( realvalue>=1e8 && exp<=350 ){ realvalue *= 1e-8; exp+=8; }
          while( realvalue>=10.0 && exp<=350 ){ realvalue *= 0.1; exp++; }
          while( realvalue<1e-8 && exp>=-350 ){ realvalue *= 1e8; exp-=8; }
          while( realvalue<1.0 && exp>=-350 ){ realvalue *= 10.0; exp--; }
          if( exp>350 || exp<-350 ){
            bufpt = "NaN";
            length = 3;
            break;
          }
        }
        bufpt = buf;
        /*
        ** If the field type is etGENERIC, then convert to either etEXP
        ** or etFLOAT, as appropriate.
        */
        flag_exp = xtype==SXFMT_EXP;
        if( xtype!=SXFMT_FLOAT ){
          realvalue += rounder;
          if( realvalue>=10.0 ){ realvalue *= 0.1; exp++; }
        }
        if( xtype==SXFMT_GENERIC ){
          flag_rtz = !flag_alternateform;
          if( exp<-4 || exp>precision ){
            xtype = SXFMT_EXP;
          }else{
            precision = precision - exp;
            xtype = SXFMT_FLOAT;
          }
        }else{
          flag_rtz = 0;
        }
        /*
        ** The "exp+precision" test causes output to be of type etEXP if
        ** the precision is too large to fit in buf[].
        */
        nsd = 0;
        if( xtype==SXFMT_FLOAT && exp+precision<SXFMT_BUFSIZ-30 ){
          flag_dp = (precision>0 || flag_alternateform);
          if( prefix ) *(bufpt++) = prefix;         /* Sign */
          if( exp<0 )  *(bufpt++) = '0';            /* Digits before "." */
          else for(; exp>=0; exp--) *(bufpt++) = (char)getdigit(&realvalue,&nsd);
          if( flag_dp ) *(bufpt++) = '.';           /* The decimal point */
          for(exp++; exp<0 && precision>0; precision--, exp++){
            *(bufpt++) = '0';
          }
          while( (precision--)>0 ) *(bufpt++) = (char)getdigit(&realvalue,&nsd);
          *(bufpt--) = 0;                           /* Null terminate */
          if( flag_rtz && flag_dp ){     /* Remove trailing zeros and "." */
            while( bufpt>=buf && *bufpt=='0' ) *(bufpt--) = 0;
            if( bufpt>=buf && *bufpt=='.' ) *(bufpt--) = 0;
          }
          bufpt++;                            /* point to next free slot */
        }else{    /* etEXP or etGENERIC */
          flag_dp = (precision>0 || flag_alternateform);
          if( prefix ) *(bufpt++) = prefix;   /* Sign */
          *(bufpt++) = (char)getdigit(&realvalue,&nsd);  /* First digit */
          if( flag_dp ) *(bufpt++) = '.';     /* Decimal point */
          while( (precision--)>0 ) *(bufpt++) = (char)getdigit(&realvalue,&nsd);
          bufpt--;                            /* point to last digit */
          if( flag_rtz && flag_dp ){          /* Remove tail zeros */
            while( bufpt>=buf && *bufpt=='0' ) *(bufpt--) = 0;
            if( bufpt>=buf && *bufpt=='.' ) *(bufpt--) = 0;
          }
          bufpt++;                            /* point to next free slot */
          if( exp || flag_exp ){
            *(bufpt++) = infop->charset[0];
            if( exp<0 ){ *(bufpt++) = '-'; exp = -exp; } /* sign of exp */
            else       { *(bufpt++) = '+'; }
            if( exp>=100 ){
              *(bufpt++) = (char)((exp/100)+'0');                /* 100's digit */
              exp %= 100;
            }
            *(bufpt++) = (char)(exp/10+'0');                     /* 10's digit */
            *(bufpt++) = (char)(exp%10+'0');                     /* 1's digit */
          }
        }
        /* The converted number is in buf[] and zero terminated.Output it.
        ** Note that the number is in the usual order, not reversed as with
        ** integer conversions.*/
        length = bufpt-buf;
        bufpt = buf;

        /* Special case:  Add leading zeros if the flag_zeropad flag is
        ** set and we are not left justified */
        if( flag_zeropad && !flag_leftjustify && length < width){
          int i;
          int nPad = width - length;
          for(i=width; i>=nPad; i--){
            bufpt[i] = bufpt[i-nPad];
          }
          i = prefix!=0;
          while( nPad-- ) bufpt[i++] = '0';
          length = width;
        }
#else
         bufpt = " ";
		 length = (int)sizeof(" ") - 1;
#endif /* SX_OMIT_FLOATINGPOINT */
        break;
      case SXFMT_SIZE:{
		 int *pSize = va_arg(ap,int *);
		 *pSize = ((SyFmtConsumer *)pUserData)->nLen;
		 length = width = 0;
					  }
        break;
      case SXFMT_PERCENT:
        buf[0] = '%';
        bufpt = buf;
        length = 1;
        break;
      case SXFMT_CHARX:
        c = va_arg(ap,int);
		buf[0] = (char)c;
		/* Limit the precision to prevent overflowing buf[] during conversion */
		if( precision>SXFMT_BUFSIZ-40 ) precision = SXFMT_BUFSIZ-40;
        if( precision>=0 ){
          for(idx=1; idx<precision; idx++) buf[idx] = (char)c;
          length = precision;
        }else{
          length =1;
        }
        bufpt = buf;
        break;
      case SXFMT_STRING:
        bufpt = va_arg(ap,char*);
        if( bufpt==0 ){
          bufpt = " ";
		  length = (int)sizeof(" ")-1;
		  break;
        }
		length = precision;
		if( precision < 0 ){
			/* Symisc extension */
			length = (int)SyStrlen(bufpt);
		}
        if( precision>=0 && precision<length ) length = precision;
        break;
	case SXFMT_RAWSTR:{
		/* Symisc extension */
		SyString *pStr = va_arg(ap,SyString *);
		if( pStr == 0 || pStr->zString == 0 ){
			 bufpt = " ";
		     length = (int)sizeof(char);
		     break;
		}
		bufpt = (char *)pStr->zString;
		length = (int)pStr->nByte;
		break;
					  }
      case SXFMT_ERROR:
        buf[0] = '?';
        bufpt = buf;
		length = (int)sizeof(char);
        if( c==0 ) zFormat--;
        break;
    }/* End switch over the format type */
    /*
    ** The text of the conversion is pointed to by "bufpt" and is
    ** "length" characters long.The field width is "width".Do
    ** the output.
    */
    if( !flag_leftjustify ){
      register int nspace;
      nspace = width-length;
      if( nspace>0 ){
        while( nspace>=etSPACESIZE ){
			rc = xConsumer(spaces,etSPACESIZE,pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
			nspace -= etSPACESIZE;
        }
        if( nspace>0 ){
			rc = xConsumer(spaces,(unsigned int)nspace,pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
		}
      }
    }
    if( length>0 ){
		rc = xConsumer(bufpt,(unsigned int)length,pUserData);
		if( rc != SXRET_OK ){
		  return SXERR_ABORT; /* Consumer routine request an operation abort */
		}
    }
    if( flag_leftjustify ){
      register int nspace;
      nspace = width-length;
      if( nspace>0 ){
        while( nspace>=etSPACESIZE ){
			rc = xConsumer(spaces,etSPACESIZE,pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
			nspace -= etSPACESIZE;
        }
        if( nspace>0 ){
			rc = xConsumer(spaces,(unsigned int)nspace,pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
		}
      }
    }
  }/* End for loop over the format string */
  return errorflag ? SXERR_FORMAT : SXRET_OK;
} 
static sxi32 FormatConsumer(const void *pSrc,unsigned int nLen,void *pData)
{
	SyFmtConsumer *pConsumer = (SyFmtConsumer *)pData;
	sxi32 rc = SXERR_ABORT;
	switch(pConsumer->nType){
	case SXFMT_CONS_PROC:
			/* User callback */
			rc = pConsumer->uConsumer.sFunc.xUserConsumer(pSrc,nLen,pConsumer->uConsumer.sFunc.pUserData);
			break;
	case SXFMT_CONS_BLOB:
			/* Blob consumer */
			rc = SyBlobAppend(pConsumer->uConsumer.pBlob,pSrc,(sxu32)nLen);
			break;
		default: 
			/* Unknown consumer */
			break;
	}
	/* Update total number of bytes consumed so far */
	pConsumer->nLen += nLen;
	pConsumer->rc = rc;
	return rc;	
}
static sxi32 FormatMount(sxi32 nType,void *pConsumer,ProcConsumer xUserCons,void *pUserData,sxu32 *pOutLen,const char *zFormat,va_list ap)
{
	SyFmtConsumer sCons;
	sCons.nType = nType;
	sCons.rc = SXRET_OK;
	sCons.nLen = 0;
	if( pOutLen ){
		*pOutLen = 0;
	}
	switch(nType){
	case SXFMT_CONS_PROC:
#if defined(UNTRUST)
			if( xUserCons == 0 ){
				return SXERR_EMPTY;
			}
#endif
			sCons.uConsumer.sFunc.xUserConsumer = xUserCons;
			sCons.uConsumer.sFunc.pUserData	    = pUserData;
		break;
		case SXFMT_CONS_BLOB:
			sCons.uConsumer.pBlob = (SyBlob *)pConsumer;
			break;
		default: 
			return SXERR_UNKNOWN;
	}
	InternFormat(FormatConsumer,&sCons,zFormat,ap); 
	if( pOutLen ){
		*pOutLen = sCons.nLen;
	}
	return sCons.rc;
}
PH7_PRIVATE sxi32 SyProcFormat(ProcConsumer xConsumer,void *pData,const char *zFormat,...)
{
	va_list ap;
	sxi32 rc;
#if defined(UNTRUST)	
	if( SX_EMPTY_STR(zFormat) ){
		return SXERR_EMPTY;
	}
#endif
	va_start(ap,zFormat);
	rc = FormatMount(SXFMT_CONS_PROC,0,xConsumer,pData,0,zFormat,ap);
	va_end(ap);
	return rc;
}
PH7_PRIVATE sxu32 SyBlobFormat(SyBlob *pBlob,const char *zFormat,...)
{
	va_list ap;
	sxu32 n;
#if defined(UNTRUST)	
	if( SX_EMPTY_STR(zFormat) ){
		return 0;
	}
#endif			
	va_start(ap,zFormat);
	FormatMount(SXFMT_CONS_BLOB,&(*pBlob),0,0,&n,zFormat,ap);
	va_end(ap);
	return n;
}
PH7_PRIVATE sxu32 SyBlobFormatAp(SyBlob *pBlob,const char *zFormat,va_list ap)
{
	sxu32 n = 0; /* cc warning */
#if defined(UNTRUST)	
	if( SX_EMPTY_STR(zFormat) ){
		return 0;
	}
#endif	
	FormatMount(SXFMT_CONS_BLOB,&(*pBlob),0,0,&n,zFormat,ap);
	return n;
}
PH7_PRIVATE sxu32 SyBufferFormat(char *zBuf,sxu32 nLen,const char *zFormat,...)
{
	SyBlob sBlob;
	va_list ap;
	sxu32 n;
#if defined(UNTRUST)	
	if( SX_EMPTY_STR(zFormat) ){
		return 0;
	}
#endif	
	if( SXRET_OK != SyBlobInitFromBuf(&sBlob,zBuf,nLen - 1) ){
		return 0;
	}		
	va_start(ap,zFormat);
	FormatMount(SXFMT_CONS_BLOB,&sBlob,0,0,0,zFormat,ap);
	va_end(ap);
	n = SyBlobLength(&sBlob);
	/* Append the null terminator */
	sBlob.mByte++;
	SyBlobAppend(&sBlob,"\0",sizeof(char));
	return n;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
/*
* Symisc XML Parser Engine (UTF-8) SAX(Event Driven) API
* @author Mrad Chems Eddine <chm@symisc.net>
* @started 08/03/2010 21:32 FreeBSD
* @finished	07/04/2010 23:24 Win32[VS8]
*/
/* 
 * An XML raw text,CDATA,tag name is parsed out and stored
 * in an instance of the following structure.
 */
typedef struct SyXMLRawStrNS SyXMLRawStrNS; 
struct SyXMLRawStrNS
{	
	/* Public field [Must match the SyXMLRawStr fields ] */
	const char *zString; /* Raw text [UTF-8 ENCODED EXCEPT CDATA] [NOT NULL TERMINATED] */
	sxu32 nByte; /* Text length */
	sxu32 nLine; /* Line number this text occurs */
	/* Private fields */
	SySet sNSset; /* Namespace entries */
};
/*
 * Lexer token codes
 * The following set of constants are the token value recognized 
 * by the lexer when processing XML input.
 */
#define SXML_TOK_INVALID	0xFFFF /* Invalid Token */
#define SXML_TOK_COMMENT	0x01   /* Comment */
#define SXML_TOK_PI	        0x02   /* Processing instruction */
#define SXML_TOK_DOCTYPE	0x04   /* Doctype directive */
#define SXML_TOK_RAW		0x08   /* Raw text */
#define SXML_TOK_START_TAG	0x10   /* Starting tag */
#define SXML_TOK_CDATA		0x20   /* CDATA */
#define SXML_TOK_END_TAG	0x40   /* Ending tag */
#define SXML_TOK_START_END	0x80   /* Tag */
#define SXML_TOK_SPACE		0x100  /* Spaces (including new lines) */
#define IS_XML_DIRTY(c) \
	( c == '<' || c == '$'|| c == '"' || c == '\''|| c == '&'|| c == '(' || c == ')' || c == '*' ||\
	c == '%'  || c == '#' || c == '|' || c == '/'|| c == '~' || c == '{' || c == '}' ||\
	c == '['  || c == ']' || c == '\\'|| c == ';'||c == '^'  || c == '`' )
/* Tokenize an entire XML input */
static sxi32 XML_Tokenize(SyStream *pStream,SyToken *pToken,void *pUserData,void *pUnused2)
{
	SyXMLParser *pParse = (SyXMLParser *)pUserData;
	SyString *pStr;
	sxi32 rc;
	int c;
	/* Jump leading white spaces */
	while( pStream->zText < pStream->zEnd && pStream->zText[0] < 0xc0 && SyisSpace(pStream->zText[0]) ){
		/* Advance the stream cursor */
		if( pStream->zText[0] == '\n' ){
			/* Increment line counter */
			pStream->nLine++;
		}
		pStream->zText++;
	}
	if( pStream->zText >= pStream->zEnd ){
		SXUNUSED(pUnused2);
		/* End of input reached */
		return SXERR_EOF;
	}
	/* Record token starting position and line */
	pToken->nLine = pStream->nLine;
	pToken->pUserData = 0;
	pStr = &pToken->sData;
	SyStringInitFromBuf(pStr,pStream->zText,0);
	/* Extract the current token */
	c = pStream->zText[0];
	if( c == '<' ){
		pStream->zText++;
		pStr->zString++;
		if( pStream->zText >= pStream->zEnd ){
			if( pParse->xError ){
				rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			/* End of input reached */
			return SXERR_EOF;
		}
		c = pStream->zText[0];
		if( c == '?' ){
			/* Processing instruction */
			pStream->zText++;
			pStr->zString++;
			pToken->nType = SXML_TOK_PI;
			while( XLEX_IN_LEN(pStream) >= sizeof("?>")-1 &&
				SyMemcmp((const void *)pStream->zText,"?>",sizeof("?>")-1) != 0 ){
					if( pStream->zText[0] == '\n' ){
						/* Increment line counter */
						pStream->nLine++;
					}
					pStream->zText++;
			}
			/* Record token length */
			pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
			if( XLEX_IN_LEN(pStream) < sizeof("?>")-1 ){
				if( pParse->xError ){
					rc = pParse->xError("End of input found,but processing instruction was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				return SXERR_EOF;
			}
			pStream->zText += sizeof("?>")-1;
		}else if( c == '!' ){
			pStream->zText++;
			if( XLEX_IN_LEN(pStream) >= sizeof("--")-1 && pStream->zText[0] == '-' && pStream->zText[1] == '-' ){
				/* Comment */
				pStream->zText += sizeof("--") - 1;
				while( XLEX_IN_LEN(pStream) >= sizeof("-->")-1 &&
					SyMemcmp((const void *)pStream->zText,"-->",sizeof("-->")-1) != 0 ){
						if( pStream->zText[0] == '\n' ){
							/* Increment line counter */
							pStream->nLine++;
						}
						pStream->zText++;
				}
				pStream->zText += sizeof("-->")-1;
				/* Tell the lexer to ignore this token */
				return SXERR_CONTINUE;
			}
			if( XLEX_IN_LEN(pStream) >= sizeof("[CDATA[") - 1 && SyMemcmp((const void *)pStream->zText,"[CDATA[",sizeof("[CDATA[")-1) == 0 ){
				/* CDATA */
				pStream->zText += sizeof("[CDATA[") - 1;
				pStr->zString = (const char *)pStream->zText;
				while( XLEX_IN_LEN(pStream) >= sizeof("]]>")-1 &&
					SyMemcmp((const void *)pStream->zText,"]]>",sizeof("]]>")-1) != 0 ){
						if( pStream->zText[0] == '\n' ){
							/* Increment line counter */
							pStream->nLine++;
						}
						pStream->zText++;
				}
				/* Record token type and length */
				pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
				pToken->nType = SXML_TOK_CDATA;
				if( XLEX_IN_LEN(pStream) < sizeof("]]>")-1 ){
					if( pParse->xError ){
						rc = pParse->xError("End of input found,but ]]> was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
						if( rc == SXERR_ABORT ){
							return SXERR_ABORT;
						}
					}
					return SXERR_EOF;
				}
				pStream->zText += sizeof("]]>")-1;
				return SXRET_OK;
			}
			if( XLEX_IN_LEN(pStream) >= sizeof("DOCTYPE") - 1 && SyMemcmp((const void *)pStream->zText,"DOCTYPE",sizeof("DOCTYPE")-1) == 0 ){
				SyString sDelim = { ">" , sizeof(char) }; /* Default delimiter */
				int c = 0;
				/* DOCTYPE */
				pStream->zText += sizeof("DOCTYPE") - 1;
				pStr->zString = (const char *)pStream->zText;
				/* Check for element declaration */
				while( pStream->zText < pStream->zEnd && pStream->zText[0] != '\n' ){
					if( pStream->zText[0] >= 0xc0 || !SyisSpace(pStream->zText[0]) ){
						c = pStream->zText[0];
						if( c == '>' ){
							break;
						}
					}
					pStream->zText++;
				}
				if( c == '[' ){
					/* Change the delimiter */
					SyStringInitFromBuf(&sDelim,"]>",sizeof("]>")-1);
				}
				if( c != '>' ){
					while( XLEX_IN_LEN(pStream) >= sDelim.nByte &&
						SyMemcmp((const void *)pStream->zText,sDelim.zString,sDelim.nByte) != 0 ){
							if( pStream->zText[0] == '\n' ){
								/* Increment line counter */
								pStream->nLine++;
							}
							pStream->zText++;
					}
				}
				/* Record token type and length */
				pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
				pToken->nType = SXML_TOK_DOCTYPE;
				if( XLEX_IN_LEN(pStream) < sDelim.nByte ){
					if( pParse->xError ){
						rc = pParse->xError("End of input found,but ]> or > was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
						if( rc == SXERR_ABORT ){
							return SXERR_ABORT;
						}
					}
					return SXERR_EOF;
				}
				pStream->zText += sDelim.nByte;
				return SXRET_OK;
			}
		}else{
			int c;
			c = pStream->zText[0];
			rc = SXRET_OK;
			pToken->nType = SXML_TOK_START_TAG;
			if( c == '/' ){
				/* End tag */
				pToken->nType = SXML_TOK_END_TAG;
				pStream->zText++;
				pStr->zString++;
				if( pStream->zText >= pStream->zEnd ){
					if( pParse->xError ){
						rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
						if( rc == SXERR_ABORT ){
							return SXERR_ABORT;
						}
					}
					return SXERR_EOF;
				}
				c = pStream->zText[0];
			}
			if( c == '>' ){
				/*<>*/
				if( pParse->xError ){
					rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				/* Ignore the token */
				return SXERR_CONTINUE;
			}
			if( c < 0xc0 && (SyisSpace(c) || SyisDigit(c) || c == '.' || c == '-' ||IS_XML_DIRTY(c) ) ){
				if( pParse->xError ){
					rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				rc = SXERR_INVALID;
			}
			pStream->zText++;
			/* Delimit the tag */
			while( pStream->zText < pStream->zEnd && pStream->zText[0] != '>' ){
				c = pStream->zText[0];
				if( c >= 0xc0 ){
					/* UTF-8 stream */
					pStream->zText++;
					SX_JMP_UTF8(pStream->zText,pStream->zEnd);
				}else{
					if( c == '/' && &pStream->zText[1] < pStream->zEnd && pStream->zText[1] == '>' ){
						pStream->zText++;
						if( pToken->nType != SXML_TOK_START_TAG ){
							if( pParse->xError ){
								rc = pParse->xError("Unexpected closing tag,expecting '>'",
									SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
								if( rc == SXERR_ABORT ){
									return SXERR_ABORT;
								}
							}
							/* Ignore the token */
							rc = SXERR_INVALID;
						}else{
							pToken->nType = SXML_TOK_START_END;
						}
						break;
					}
					if( pStream->zText[0] == '\n' ){
						/* Increment line counter */
						pStream->nLine++;
					}
					/* Advance the stream cursor */
					pStream->zText++;
				}
			}
			if( rc != SXRET_OK ){
				/* Tell the lexer to ignore this token */
				return SXERR_CONTINUE;
			}
			/* Record token length */
			pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
			if( pToken->nType == SXML_TOK_START_END && pStr->nByte > 0){
				pStr->nByte -= sizeof(char);
			}
			if ( pStream->zText < pStream->zEnd ){
				pStream->zText++;
			}else{
				if( pParse->xError ){
					rc = pParse->xError("End of input found,but closing tag '>' was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
			}
		}
	}else{
		/* Raw input */
		while( pStream->zText < pStream->zEnd ){
			c = pStream->zText[0];
			if( c < 0xc0 ){
				if( c == '<' ){
					break;
				}else if( c == '\n' ){
					/* Increment line counter */
					pStream->nLine++;
				}
				/* Advance the stream cursor */
				pStream->zText++;
			}else{
				/* UTF-8 stream */
				pStream->zText++;
				SX_JMP_UTF8(pStream->zText,pStream->zEnd);
			}
		}
		/* Record token type,length */
		pToken->nType = SXML_TOK_RAW;
		pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
	}
	/* Return to the lexer */
	return SXRET_OK;
}
static int XMLCheckDuplicateAttr(SyXMLRawStr *aSet,sxu32 nEntry,SyXMLRawStr *pEntry)
{
	sxu32 n;
	for( n = 0 ; n < nEntry ; n += 2 ){
		SyXMLRawStr *pAttr = &aSet[n];
		if( pAttr->nByte == pEntry->nByte && SyMemcmp(pAttr->zString,pEntry->zString,pEntry->nByte) == 0 ){
			/* Attribute found */
			return 1;
		}
	}
	/* No duplicates */
	return 0;
}
static sxi32 XMLProcessNamesSpace(SyXMLParser *pParse,SyXMLRawStrNS *pTag,SyToken *pToken,SySet *pAttr)
{
	SyXMLRawStr *pPrefix,*pUri; /* Namespace prefix/URI */
	SyHashEntry *pEntry;
	SyXMLRawStr *pDup;
	sxi32 rc;
	/* Extract the URI first */
	pUri = (SyXMLRawStr *)SySetPeek(pAttr);
	/* Extract the prefix */
	pPrefix =  (SyXMLRawStr *)SySetAt(pAttr,SySetUsed(pAttr) - 2);
	/* Prefix name */
	if( pPrefix->nByte == sizeof("xmlns")-1 ){
		/* Default namespace */
		pPrefix->nByte = 0;
		pPrefix->zString = ""; /* Empty string */
	}else{
		pPrefix->nByte   -= sizeof("xmlns")-1; 
		pPrefix->zString += sizeof("xmlns")-1;
		if( pPrefix->zString[0] != ':' ){
			return SXRET_OK;
		}
		pPrefix->nByte--;
		pPrefix->zString++;
		if( pPrefix->nByte < 1 ){
			if( pParse->xError ){
				rc = pParse->xError("Invalid namespace name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			/* POP the last insertred two entries */
			(void)SySetPop(pAttr);
			(void)SySetPop(pAttr);
			return SXERR_SYNTAX;
		}
	}
	/* Invoke the namespace callback if available */
	if( pParse->xNameSpace ){
		rc = pParse->xNameSpace(pPrefix,pUri,pParse->pUserData);
		if( rc == SXERR_ABORT ){
			/* User callback request an operation abort */
			return SXERR_ABORT;
		}
	}
	/* Duplicate structure */
	pDup = (SyXMLRawStr *)SyMemBackendAlloc(pParse->pAllocator,sizeof(SyXMLRawStr));
	if( pDup == 0 ){
		if( pParse->xError ){
			pParse->xError("Out of memory",SXML_ERROR_NO_MEMORY,pToken,pParse->pUserData);
		}
		/* Abort processing immediately */
		return SXERR_ABORT;
	}
	*pDup = *pUri; /* Structure assignement */
	/* Save the namespace */
	if( pPrefix->nByte == 0 ){
		pPrefix->zString = "Default";
		pPrefix->nByte = sizeof("Default")-1;
	}
	SyHashInsert(&pParse->hns,(const void *)pPrefix->zString,pPrefix->nByte,pDup);
	/* Peek the last inserted entry */
	pEntry = SyHashLastEntry(&pParse->hns);
	/* Store in the corresponding tag container*/
	SySetPut(&pTag->sNSset,(const void *)&pEntry);
	/* POP the last insertred two entries */
	(void)SySetPop(pAttr);
	(void)SySetPop(pAttr);
	return SXRET_OK;
}
static sxi32 XMLProcessStartTag(SyXMLParser *pParse,SyToken *pToken,SyXMLRawStrNS *pTag,SySet  *pAttrSet,SySet *pTagStack)
{
	SyString *pIn = &pToken->sData;
	const char *zIn,*zCur,*zEnd;
	SyXMLRawStr sEntry;
	sxi32 rc;
	int c;
	/* Reset the working set */
	SySetReset(pAttrSet);
	/* Delimit the raw tag */
	zIn = pIn->zString;
	zEnd = &zIn[pIn->nByte];
	while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
		zIn++;
	}
	/* Isolate tag name */
	sEntry.nLine = pTag->nLine = pToken->nLine;
	zCur = zIn;
	while( zIn < zEnd ){
		if( (unsigned char)zIn[0] >= 0xc0 ){
			/* UTF-8 stream */
			zIn++;
			SX_JMP_UTF8(zIn,zEnd);
		}else if( SyisSpace(zIn[0])){
			break;
		}else{
			if( IS_XML_DIRTY(zIn[0]) ){
				if( pParse->xError ){
					rc = pParse->xError("Illegal character in XML name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
			}
			zIn++;
		}
	}
	if( zCur >= zIn ){
		if( pParse->xError ){
			rc = pParse->xError("Invalid XML name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
			if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
		}
		return SXERR_SYNTAX;
	}
	pTag->zString = zCur;
	pTag->nByte = (sxu32)(zIn-zCur);
	/* Process tag attribute */
	for(;;){
		int is_ns = 0;
		while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
			zIn++;
		}
		if( zIn >= zEnd ){
			break;
		}
		zCur = zIn;
		while( zIn < zEnd && zIn[0] != '=' ){
			if( (unsigned char)zIn[0] >= 0xc0 ){
				/* UTF-8 stream */
				zIn++;
				SX_JMP_UTF8(zIn,zEnd);
			}else if( SyisSpace(zIn[0]) ){
				break;
			}else{
				zIn++;
			}
		}
		if( zCur >= zIn ){
			if( pParse->xError ){
				rc = pParse->xError("Missing attribute name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			return SXERR_SYNTAX;
		}
		/* Store attribute name */
		sEntry.zString = zCur;
		sEntry.nByte = (sxu32)(zIn-zCur);
		if( (pParse->nFlags & SXML_ENABLE_NAMESPACE) && sEntry.nByte >= sizeof("xmlns") - 1 &&
			SyMemcmp(sEntry.zString,"xmlns",sizeof("xmlns") - 1) == 0 ){
				is_ns = 1;
		}
		while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
			zIn++;
		}
		if( zIn >= zEnd || zIn[0] != '=' ){
			if( pParse->xError ){
				rc = pParse->xError("Missing attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			return SXERR_SYNTAX;
		}
		while( sEntry.nByte > 0 && (unsigned char)zCur[sEntry.nByte - 1] < 0xc0 
			&& SyisSpace(zCur[sEntry.nByte - 1])){
				sEntry.nByte--;
		}
		/* Check for duplicates first */
		if( XMLCheckDuplicateAttr((SyXMLRawStr *)SySetBasePtr(pAttrSet),SySetUsed(pAttrSet),&sEntry) ){
			if( pParse->xError ){
				rc = pParse->xError("Duplicate attribute",SXML_ERROR_DUPLICATE_ATTRIBUTE,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			return SXERR_SYNTAX;
		}
		if( SXRET_OK != SySetPut(pAttrSet,(const void *)&sEntry) ){
			return SXERR_ABORT;
		}
		/* Extract attribute value */
		zIn++; /* Jump the trailing '=' */
		while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
			zIn++;
		}
		if( zIn >= zEnd ){
			if( pParse->xError ){
				rc = pParse->xError("Missing attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			(void)SySetPop(pAttrSet);
			return SXERR_SYNTAX;
		}
		if( zIn[0] != '\'' && zIn[0] != '"' ){
			if( pParse->xError ){
				rc = pParse->xError("Missing quotes on attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			(void)SySetPop(pAttrSet);
			return SXERR_SYNTAX;
		}
		c = zIn[0];
		zIn++;
		zCur = zIn;
		while( zIn < zEnd && zIn[0] != c ){
			zIn++;
		}
		if( zIn >= zEnd ){
			if( pParse->xError ){
				rc = pParse->xError("Missing quotes on attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			(void)SySetPop(pAttrSet);
			return SXERR_SYNTAX;
		}
		/* Store attribute value */
		sEntry.zString = zCur;
		sEntry.nByte = (sxu32)(zIn-zCur);
		if( SXRET_OK != SySetPut(pAttrSet,(const void *)&sEntry) ){
			return SXERR_ABORT;
		}
		zIn++;
		if( is_ns ){
			/* Process namespace declaration */
			XMLProcessNamesSpace(pParse,pTag,pToken,pAttrSet);
		}
	}
	/* Store in the tag stack */
	if( pToken->nType == SXML_TOK_START_TAG ){
		rc = SySetPut(pTagStack,(const void *)pTag);
	}
	return SXRET_OK;
}
static void XMLExtactPI(SyToken *pToken,SyXMLRawStr *pTarget,SyXMLRawStr *pData,int *pXML)
{
	SyString *pIn = &pToken->sData;
	const char *zIn,*zCur,*zEnd;
	
	pTarget->nLine = pData->nLine = pToken->nLine;
	/* Nullify the entries first */
	pTarget->zString = pData->zString = 0;
	/* Ignore leading and traing white spaces */
	SyStringFullTrim(pIn);
	/* Delimit the raw PI */
	zIn  = pIn->zString;
	zEnd = &zIn[pIn->nByte];
	if( pXML ){
		*pXML = 0;
	}
	/* Extract the target */
	zCur = zIn;
	while( zIn < zEnd ){
		if( (unsigned char)zIn[0] >= 0xc0 ){
			/* UTF-8 stream */
			zIn++;
			SX_JMP_UTF8(zIn,zEnd);
		}else if( SyisSpace(zIn[0])){
			break;
		}else{
			zIn++;
		}
	}
	if( zIn > zCur ){
		pTarget->zString = zCur;
		pTarget->nByte = (sxu32)(zIn-zCur);
		if( pXML && pTarget->nByte == sizeof("xml")-1 && SyStrnicmp(pTarget->zString,"xml",sizeof("xml")-1) == 0 ){
			*pXML = 1;
		}
	}
	/* Extract the PI data  */
	while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
		zIn++;
	}
	if( zIn < zEnd ){
		pData->zString = zIn;
		pData->nByte = (sxu32)(zEnd-zIn);
	}
}
static sxi32 XMLExtractEndTag(SyXMLParser *pParse,SyToken *pToken,SyXMLRawStrNS *pOut)
{
	SyString *pIn = &pToken->sData;
	const char *zEnd = &pIn->zString[pIn->nByte];
	const char *zIn = pIn->zString;
	/* Ignore leading white spaces */
	while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
		zIn++;
	}
	pOut->nLine = pToken->nLine;
	pOut->zString = zIn;
	pOut->nByte = (sxu32)(zEnd-zIn);
	/* Ignore trailing white spaces */
	while( pOut->nByte > 0 && (unsigned char)pOut->zString[pOut->nByte - 1] < 0xc0
		&& SyisSpace(pOut->zString[pOut->nByte - 1]) ){
			pOut->nByte--;
	}
	if( pOut->nByte < 1 ){
		if( pParse->xError ){
			sxi32 rc;
			rc  = pParse->xError("Invalid end tag name",SXML_ERROR_INVALID_TOKEN,pToken,pParse->pUserData);
			if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
		}
		return SXERR_SYNTAX;
	}
	return SXRET_OK;
}
static void TokenToXMLString(SyToken *pTok,SyXMLRawStrNS *pOut)
{
	/* Remove leading and trailing white spaces first */
	SyStringFullTrim(&pTok->sData);
	pOut->zString = SyStringData(&pTok->sData); 
	pOut->nByte = SyStringLength(&pTok->sData);
}
static sxi32 XMLExtractNS(SyXMLParser *pParse,SyToken *pToken,SyXMLRawStrNS *pTag,SyXMLRawStr *pnsUri)
{
	SyXMLRawStr *pUri,sPrefix;
	SyHashEntry *pEntry;
	sxu32 nOfft;
	sxi32 rc;
	/* Extract a prefix if available */
	rc = SyByteFind(pTag->zString,pTag->nByte,':',&nOfft);
	if( rc != SXRET_OK ){
		/* Check if there is a default namespace */
		pEntry = SyHashGet(&pParse->hns,"Default",sizeof("Default")-1);
		if( pEntry  ){
			/* Extract the ns URI */
			pUri = (SyXMLRawStr *)pEntry->pUserData;
			/* Save the ns URI */
			pnsUri->zString = pUri->zString;
			pnsUri->nByte = pUri->nByte;
		}
		return SXRET_OK;
	}
	if( nOfft < 1 ){
		if( pParse->xError ){
			rc = pParse->xError("Empty prefix is not allowed according to XML namespace specification",
				SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
			if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
		}
		return SXERR_SYNTAX;
	}
	sPrefix.zString = pTag->zString;
	sPrefix.nByte = nOfft;
	sPrefix.nLine = pTag->nLine;
	pTag->zString += nOfft + 1;
	pTag->nByte -= nOfft;
	if( pTag->nByte < 1 ){
		if( pParse->xError ){
			rc = pParse->xError("Missing tag name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
			if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
		}
		return SXERR_SYNTAX;
	}
	/* Check if the prefix is already registered */
	pEntry = SyHashGet(&pParse->hns,sPrefix.zString,sPrefix.nByte);
	if( pEntry == 0 ){
		if( pParse->xError ){
			rc = pParse->xError("Namespace prefix is not defined",SXML_ERROR_SYNTAX,
				pToken,pParse->pUserData);
			if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
		}
		return SXERR_SYNTAX;
	}
	/* Extract the ns URI */
	pUri = (SyXMLRawStr *)pEntry->pUserData;
	/* Save the ns URI */
	pnsUri->zString = pUri->zString;
	pnsUri->nByte = pUri->nByte;
	/* All done */
	return SXRET_OK;
}
static sxi32 XMLnsUnlink(SyXMLParser *pParse,SyXMLRawStrNS *pLast,SyToken *pToken)
{
	SyHashEntry **apEntry,*pEntry;
	void *pUserData;
	sxu32 n;
	/* Release namespace entries */
	apEntry = (SyHashEntry **)SySetBasePtr(&pLast->sNSset);
	for( n = 0 ; n < SySetUsed(&pLast->sNSset) ; ++n ){
		pEntry = apEntry[n];
		/* Invoke the end namespace declaration callback */
		if( pParse->xNameSpaceEnd && (pParse->nFlags & SXML_ENABLE_NAMESPACE) && pToken ){
			SyXMLRawStr sPrefix;
			sxi32 rc;
			sPrefix.zString = (const char *)pEntry->pKey;
			sPrefix.nByte = pEntry->nKeyLen;
			sPrefix.nLine = pToken->nLine;
			rc = pParse->xNameSpaceEnd(&sPrefix,pParse->pUserData);
			if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
		}
		pUserData = pEntry->pUserData;
		/* Remove from the namespace hashtable */
		SyHashDeleteEntry2(pEntry);
		SyMemBackendFree(pParse->pAllocator,pUserData);
	}
	SySetRelease(&pLast->sNSset);
	return SXRET_OK;
}
/* Process XML tokens */
static sxi32  ProcessXML(SyXMLParser *pParse,SySet *pTagStack,SySet *pWorker)	
{
	SySet *pTokenSet = &pParse->sToken;
	SyXMLRawStrNS sEntry;
	SyXMLRawStr sNs;
	SyToken *pToken;
	int bGotTag;
	sxi32 rc;
	/* Initialize fields */
	bGotTag = 0;
	/* Start processing */		
	if( pParse->xStartDoc && (SXERR_ABORT == pParse->xStartDoc(pParse->pUserData)) ){
		/* User callback request an operation abort */
		return SXERR_ABORT;
	}
	/* Reset the loop cursor */
	SySetResetCursor(pTokenSet);
	/* Extract the current token */
	while( SXRET_OK == (SySetGetNextEntry(&(*pTokenSet),(void **)&pToken)) ){
		SyZero(&sEntry,sizeof(SyXMLRawStrNS));
		SyZero(&sNs,sizeof(SyXMLRawStr));
		SySetInit(&sEntry.sNSset,pParse->pAllocator,sizeof(SyHashEntry *));
		sEntry.nLine = sNs.nLine = pToken->nLine;
		switch(pToken->nType){
		case SXML_TOK_DOCTYPE:
			if( SySetUsed(pTagStack) > 1 || bGotTag ){
				if( pParse->xError ){
					rc = pParse->xError("DOCTYPE must be declared first",SXML_ERROR_MISPLACED_XML_PI,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				break;
			}
			/* Invoke the supplied callback if any */
			if( pParse->xDoctype ){
				TokenToXMLString(pToken,&sEntry);
				rc = pParse->xDoctype((SyXMLRawStr *)&sEntry,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			break;
		case SXML_TOK_CDATA:
			if( SySetUsed(pTagStack) < 1 ){
				if( pParse->xError ){
					rc = pParse->xError("CDATA without matching tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
			}
			/* Invoke the supplied callback if any */
			if( pParse->xRaw ){
				TokenToXMLString(pToken,&sEntry);
				rc = pParse->xRaw((SyXMLRawStr *)&sEntry,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			break;
		case SXML_TOK_PI:{
			SyXMLRawStr sTarget,sData;
			int isXML = 0;
			/* Extract the target and data */
			XMLExtactPI(pToken,&sTarget,&sData,&isXML);
			if( isXML && SySetCursor(pTokenSet) - 1 > 0 ){
				if( pParse->xError ){
					rc = pParse->xError("Unexpected XML declaration. The XML declaration must be the first node in the document",
						SXML_ERROR_MISPLACED_XML_PI,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
			}else if( pParse->xPi ){
				/* Invoke the supplied callback*/
				rc = pParse->xPi(&sTarget,&sData,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}						 
			break;
						 }
		case SXML_TOK_RAW:
			if( SySetUsed(pTagStack) < 1 ){
				if( pParse->xError ){
					rc = pParse->xError("Text (Raw data) without matching tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				break;
			}
			/* Invoke the supplied callback if any */
			if( pParse->xRaw ){
				TokenToXMLString(pToken,&sEntry);
				rc = pParse->xRaw((SyXMLRawStr *)&sEntry,pParse->pUserData);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			break;
		case SXML_TOK_END_TAG:{
			SyXMLRawStrNS *pLast = 0; /* cc warning */
			if( SySetUsed(pTagStack) < 1 ){
				if( pParse->xError ){
					rc = pParse->xError("Unexpected closing tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				break;
			}
			rc = XMLExtractEndTag(pParse,pToken,&sEntry);
			if( rc == SXRET_OK ){
				/* Extract the last inserted entry */
				pLast = (SyXMLRawStrNS *)SySetPeek(pTagStack);
				if( pLast == 0 || pLast->nByte != sEntry.nByte ||
					SyMemcmp(pLast->zString,sEntry.zString,sEntry.nByte) != 0 ){
						if( pParse->xError ){
							rc = pParse->xError("Unexpected closing tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
							if( rc == SXERR_ABORT ){
								return SXERR_ABORT;
							}
						}
				}else{
					/* Invoke the supllied callback if any */
					if( pParse->xEndTag ){
						rc = SXRET_OK;
						if( pParse->nFlags & SXML_ENABLE_NAMESPACE ){
							/* Extract namespace URI */
							rc = XMLExtractNS(pParse,pToken,&sEntry,&sNs);
							if( rc == SXERR_ABORT ){
								return SXERR_ABORT;
							}
						}
						if( rc == SXRET_OK ){
							rc = pParse->xEndTag((SyXMLRawStr *)&sEntry,&sNs,pParse->pUserData);
							if( rc == SXERR_ABORT ){
								return SXERR_ABORT;
							}
						}
					}
				}
			}else if( rc == SXERR_ABORT ){
				return SXERR_ABORT;
			}
			if( pLast ){
				rc = XMLnsUnlink(pParse,pLast,pToken);
				(void)SySetPop(pTagStack);
				if( rc == SXERR_ABORT ){
					return SXERR_ABORT;
				}
			}
			break;							  
							  }
		case SXML_TOK_START_TAG:
		case SXML_TOK_START_END:
			if( SySetUsed(pTagStack) < 1 && bGotTag ){
				if( pParse->xError ){
					rc = pParse->xError("XML document cannot contain multiple root level elements documents",
						SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				break;
			}
			bGotTag = 1;
			/* Extract the tag and it's supplied attribute */
			rc = XMLProcessStartTag(pParse,pToken,&sEntry,pWorker,pTagStack);
			if( rc == SXRET_OK ){
				if( pParse->nFlags & SXML_ENABLE_NAMESPACE ){
					/* Extract namespace URI */
					rc = XMLExtractNS(pParse,pToken,&sEntry,&sNs);
				}
			}
			if( rc == SXRET_OK ){
				/* Invoke the supplied callback */
				if( pParse->xStartTag ){
					rc = pParse->xStartTag((SyXMLRawStr *)&sEntry,&sNs,SySetUsed(pWorker),
						(SyXMLRawStr *)SySetBasePtr(pWorker),pParse->pUserData);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
				if( pToken->nType == SXML_TOK_START_END ){
					if ( pParse->xEndTag ){
						rc = pParse->xEndTag((SyXMLRawStr *)&sEntry,&sNs,pParse->pUserData);
						if( rc == SXERR_ABORT ){
							return SXERR_ABORT;
						}
					}
					rc = XMLnsUnlink(pParse,&sEntry,pToken);
					if( rc == SXERR_ABORT ){
						return SXERR_ABORT;
					}
				}
			}else if( rc == SXERR_ABORT ){
				/* Abort processing immediately */
				return SXERR_ABORT;
			}
			break;
		default:
			/* Can't happen */
			break;
		}
	}
	if( SySetUsed(pTagStack) > 0 && pParse->xError){
		pParse->xError("Missing closing tag",SXML_ERROR_SYNTAX,
			(SyToken *)SySetPeek(&pParse->sToken),pParse->pUserData);
	}
	if( pParse->xEndDoc ){
		pParse->xEndDoc(pParse->pUserData);
	}
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyXMLParserInit(SyXMLParser *pParser,SyMemBackend *pAllocator,sxi32 iFlags)
{
	/* Zero the structure first */
	SyZero(pParser,sizeof(SyXMLParser));
	/* Initilaize fields */
	SySetInit(&pParser->sToken,pAllocator,sizeof(SyToken));
	SyLexInit(&pParser->sLex,&pParser->sToken,XML_Tokenize,pParser);
	SyHashInit(&pParser->hns,pAllocator,0,0);
	pParser->pAllocator = pAllocator;
	pParser->nFlags = iFlags;
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyXMLParserSetEventHandler(SyXMLParser *pParser,
	void *pUserData,
	ProcXMLStartTagHandler xStartTag,
	ProcXMLTextHandler xRaw,
	ProcXMLSyntaxErrorHandler xErr,
	ProcXMLStartDocument xStartDoc,
	ProcXMLEndTagHandler xEndTag,
	ProcXMLPIHandler   xPi,
	ProcXMLEndDocument xEndDoc,
	ProcXMLDoctypeHandler xDoctype,
	ProcXMLNameSpaceStart xNameSpace,
	ProcXMLNameSpaceEnd   xNameSpaceEnd
	){
	/* Install user callbacks */
	if( xErr ){
		pParser->xError = xErr;
	}
	if( xStartDoc ){
		pParser->xStartDoc = xStartDoc;
	}
	if( xStartTag ){
		pParser->xStartTag = xStartTag;
	}
	if( xRaw ){
		pParser->xRaw = xRaw;
	}
	if( xEndTag ){
		pParser->xEndTag = xEndTag;
	}
	if( xPi ){
		pParser->xPi = xPi;
	}
	if( xEndDoc ){
		pParser->xEndDoc = xEndDoc;
	}
	if( xDoctype ){
		pParser->xDoctype = xDoctype;
	}
	if( xNameSpace ){
		pParser->xNameSpace	= xNameSpace;
	}
	if( xNameSpaceEnd ){
		pParser->xNameSpaceEnd = xNameSpaceEnd;
	}
	pParser->pUserData = pUserData;
	return SXRET_OK;
}
/* Process an XML chunk */
PH7_PRIVATE sxi32 SyXMLProcess(SyXMLParser *pParser,const char *zInput,sxu32 nByte)
{
	SySet sTagStack;
	SySet sWorker;
	sxi32 rc;
	/* Initialize working sets */
	SySetInit(&sWorker,pParser->pAllocator,sizeof(SyXMLRawStr)); /* Tag container */
	SySetInit(&sTagStack,pParser->pAllocator,sizeof(SyXMLRawStrNS)); /* Tag stack */
	/* Tokenize the entire input */
	rc = SyLexTokenizeInput(&pParser->sLex,zInput,nByte,0,0,0);
	if( rc == SXERR_ABORT ){
		/* Tokenize callback request an operation abort */
		return SXERR_ABORT;
	}
	if( SySetUsed(&pParser->sToken) < 1 ){
		/* Nothing to process [i.e: white spaces] */
		rc = SXRET_OK;
	}else{
		/* Process XML Tokens */
		rc = ProcessXML(&(*pParser),&sTagStack,&sWorker);
		if( pParser->nFlags & SXML_ENABLE_NAMESPACE ){
			if( SySetUsed(&sTagStack) > 0  ){
				SyXMLRawStrNS *pEntry;
				SyHashEntry **apEntry;
				sxu32 n;
				SySetResetCursor(&sTagStack);
				while( SySetGetNextEntry(&sTagStack,(void **)&pEntry) == SXRET_OK ){
					/* Release namespace entries */
					apEntry = (SyHashEntry **)SySetBasePtr(&pEntry->sNSset);
					for( n = 0 ; n < SySetUsed(&pEntry->sNSset) ; ++n ){
						SyMemBackendFree(pParser->pAllocator,apEntry[n]->pUserData);
					}
					SySetRelease(&pEntry->sNSset);
				}
			}
		}
	}
	/* Clean-up the mess left behind */
	SySetRelease(&sWorker);
	SySetRelease(&sTagStack);
	/* Processing result */
	return rc;
}
PH7_PRIVATE sxi32 SyXMLParserRelease(SyXMLParser *pParser)
{
	SyLexRelease(&pParser->sLex);
	SySetRelease(&pParser->sToken);
	SyHashRelease(&pParser->hns);
	return SXRET_OK;
}
/*
 * Zip File Format:
 *
 * Byte order: Little-endian
 * 
 * [Local file header + Compressed data [+ Extended local header]?]*
 * [Central directory]*
 * [End of central directory record]
 * 
 * Local file header:*
 * Offset   Length   Contents
 *  0      4 bytes  Local file header signature (0x04034b50)
 *  4      2 bytes  Version needed to extract
 *  6      2 bytes  General purpose bit flag
 *  8      2 bytes  Compression method
 * 10      2 bytes  Last mod file time
 * 12      2 bytes  Last mod file date
 * 14      4 bytes  CRC-32
 * 18      4 bytes  Compressed size (n)
 * 22      4 bytes  Uncompressed size
 * 26      2 bytes  Filename length (f)
 * 28      2 bytes  Extra field length (e)
 * 30     (f)bytes  Filename
 *        (e)bytes  Extra field
 *        (n)bytes  Compressed data
 *
 * Extended local header:*
 * Offset   Length   Contents
 *  0      4 bytes  Extended Local file header signature (0x08074b50)
 *  4      4 bytes  CRC-32
 *  8      4 bytes  Compressed size
 * 12      4 bytes  Uncompressed size
 *
 * Extra field:?(if any)
 * Offset 	Length		Contents
 * 0	  	2 bytes		Header ID (0x001 until 0xfb4a) see extended appnote from Info-zip
 * 2	  	2 bytes		Data size (g)
 * 		  	(g) bytes	(g) bytes of extra field
 * 
 * Central directory:*
 * Offset   Length   Contents
 *  0      4 bytes  Central file header signature (0x02014b50)
 *  4      2 bytes  Version made by
 *  6      2 bytes  Version needed to extract
 *  8      2 bytes  General purpose bit flag
 * 10      2 bytes  Compression method
 * 12      2 bytes  Last mod file time
 * 14      2 bytes  Last mod file date
 * 16      4 bytes  CRC-32
 * 20      4 bytes  Compressed size
 * 24      4 bytes  Uncompressed size
 * 28      2 bytes  Filename length (f)
 * 30      2 bytes  Extra field length (e)
 * 32      2 bytes  File comment length (c)
 * 34      2 bytes  Disk number start
 * 36      2 bytes  Internal file attributes
 * 38      4 bytes  External file attributes
 * 42      4 bytes  Relative offset of local header
 * 46     (f)bytes  Filename
 *        (e)bytes  Extra field
 *        (c)bytes  File comment
 *
 * End of central directory record:
 * Offset   Length   Contents
 *  0      4 bytes  End of central dir signature (0x06054b50)
 *  4      2 bytes  Number of this disk
 *  6      2 bytes  Number of the disk with the start of the central directory
 *  8      2 bytes  Total number of entries in the central dir on this disk
 * 10      2 bytes  Total number of entries in the central dir
 * 12      4 bytes  Size of the central directory
 * 16      4 bytes  Offset of start of central directory with respect to the starting disk number
 * 20      2 bytes  zipfile comment length (c)
 * 22     (c)bytes  zipfile comment
 *
 * compression method: (2 bytes)
 *          0 - The file is stored (no compression)
 *          1 - The file is Shrunk
 *          2 - The file is Reduced with compression factor 1
 *          3 - The file is Reduced with compression factor 2
 *          4 - The file is Reduced with compression factor 3
 *          5 - The file is Reduced with compression factor 4
 *          6 - The file is Imploded
 *          7 - Reserved for Tokenizing compression algorithm
 *          8 - The file is Deflated
 */ 

#define SXMAKE_ZIP_WORKBUF	(SXU16_HIGH/2)	/* 32KB Initial working buffer size */
#define SXMAKE_ZIP_EXTRACT_VER	0x000a	/* Version needed to extract */
#define SXMAKE_ZIP_VER	0x003	/* Version made by */

#define SXZIP_CENTRAL_MAGIC			0x02014b50
#define SXZIP_END_CENTRAL_MAGIC		0x06054b50
#define SXZIP_LOCAL_MAGIC			0x04034b50
/*#define SXZIP_CRC32_START			0xdebb20e3*/

#define SXZIP_LOCAL_HDRSZ		30	/* Local header size */
#define SXZIP_LOCAL_EXT_HDRZ	16	/* Extended local header(footer) size */
#define SXZIP_CENTRAL_HDRSZ		46	/* Central directory header size */
#define SXZIP_END_CENTRAL_HDRSZ	22	/* End of central directory header size */
	 
#define SXARCHIVE_HASH_SIZE	64 /* Starting hash table size(MUST BE POWER OF 2)*/
static sxi32 SyLittleEndianUnpack32(sxu32 *uNB,const unsigned char *buf,sxu32 Len)
{
	if( Len < sizeof(sxu32) ){ 
		return SXERR_SHORT;
	}
	*uNB =  buf[0] + (buf[1] << 8) + (buf[2] << 16) + (buf[3] << 24);
	return SXRET_OK;
}
static sxi32 SyLittleEndianUnpack16(sxu16 *pOut,const unsigned char *zBuf,sxu32 nLen)
{
	if( nLen < sizeof(sxu16) ){
		return SXERR_SHORT;
	}
	*pOut = zBuf[0] + (zBuf[1] <<8);
	
	return SXRET_OK;
}
static sxi32 SyDosTimeFormat(sxu32 nDosDate,Sytm *pOut)
{
	sxu16 nDate;
	sxu16 nTime;
	nDate = nDosDate >> 16;
	nTime = nDosDate & 0xFFFF;
	pOut->tm_isdst  = 0;
	pOut->tm_year 	= 1980 + (nDate >> 9);
	pOut->tm_mon	= (nDate % (1<<9))>>5;
	pOut->tm_mday	= (nDate % (1<<9))&0x1F;
	pOut->tm_hour	= nTime >> 11;
	pOut->tm_min	= (nTime % (1<<11)) >> 5;
	pOut->tm_sec	= ((nTime % (1<<11))& 0x1F )<<1;
	return SXRET_OK;
}
/*
 * Archive hashtable manager
 */
static sxi32 ArchiveHashGetEntry(SyArchive *pArch,const char *zName,sxu32 nLen,SyArchiveEntry **ppEntry)
{
	SyArchiveEntry *pBucketEntry;
	SyString sEntry;
	sxu32 nHash;

	nHash = pArch->xHash(zName,nLen);
	pBucketEntry = pArch->apHash[nHash & (pArch->nSize - 1)];

	SyStringInitFromBuf(&sEntry,zName,nLen);

	for(;;){
		if( pBucketEntry == 0 ){
			break;
		}
		if( nHash == pBucketEntry->nHash && pArch->xCmp(&sEntry,&pBucketEntry->sFileName) == 0 ){
			if( ppEntry ){
				*ppEntry = pBucketEntry;
			}
			return SXRET_OK;
		}
		pBucketEntry = pBucketEntry->pNextHash;
	}
	return SXERR_NOTFOUND;
}
static void ArchiveHashBucketInstall(SyArchiveEntry **apTable,sxu32 nBucket,SyArchiveEntry *pEntry)
{
	pEntry->pNextHash = apTable[nBucket];
	if( apTable[nBucket] != 0 ){
		apTable[nBucket]->pPrevHash = pEntry;
	}
	apTable[nBucket] = pEntry;
}
static sxi32 ArchiveHashGrowTable(SyArchive *pArch)
{
	sxu32 nNewSize = pArch->nSize * 2;
	SyArchiveEntry **apNew;
	SyArchiveEntry *pEntry;
	sxu32 n;

	/* Allocate a new table */
	apNew = (SyArchiveEntry **)SyMemBackendAlloc(pArch->pAllocator,nNewSize * sizeof(SyArchiveEntry *));
	if( apNew == 0 ){
		return SXRET_OK; /* Not so fatal,simply a performance hit */
	}
	SyZero(apNew,nNewSize * sizeof(SyArchiveEntry *));
	/* Rehash old entries */
	for( n = 0 , pEntry = pArch->pList ; n < pArch->nLoaded ; n++ , pEntry = pEntry->pNext ){
		pEntry->pNextHash = pEntry->pPrevHash = 0;
		ArchiveHashBucketInstall(apNew,pEntry->nHash & (nNewSize - 1),pEntry);
	}
	/* Release the old table */
	SyMemBackendFree(pArch->pAllocator,pArch->apHash);
	pArch->apHash = apNew;
	pArch->nSize = nNewSize;

	return SXRET_OK;
}
static sxi32 ArchiveHashInstallEntry(SyArchive *pArch,SyArchiveEntry *pEntry)
{
	if( pArch->nLoaded > pArch->nSize * 3 ){
		ArchiveHashGrowTable(&(*pArch));
	}
	pEntry->nHash = pArch->xHash(SyStringData(&pEntry->sFileName),SyStringLength(&pEntry->sFileName));
	/* Install the entry in its bucket */
	ArchiveHashBucketInstall(pArch->apHash,pEntry->nHash & (pArch->nSize - 1),pEntry);
	MACRO_LD_PUSH(pArch->pList,pEntry);
	pArch->nLoaded++;

	return SXRET_OK;
}
 /*
  * Parse the End of central directory and report status
  */ 
 static sxi32 ParseEndOfCentralDirectory(SyArchive *pArch,const unsigned char *zBuf)
 {
	sxu32 nMagic = 0; /* cc -O6 warning */
 	sxi32 rc;
 	
 	/* Sanity check */
 	rc = SyLittleEndianUnpack32(&nMagic,zBuf,sizeof(sxu32));
 	if( /* rc != SXRET_OK || */nMagic != SXZIP_END_CENTRAL_MAGIC ){
 		return SXERR_CORRUPT;
 	}
 	/* # of entries */
 	rc = SyLittleEndianUnpack16((sxu16 *)&pArch->nEntry,&zBuf[8],sizeof(sxu16));
 	if( /* rc != SXRET_OK || */ pArch->nEntry > SXI16_HIGH /* SXU16_HIGH */ ){
 		return SXERR_CORRUPT;
 	}
 	/* Size of central directory */
 	rc = SyLittleEndianUnpack32(&pArch->nCentralSize,&zBuf[12],sizeof(sxu32));
 	if( /*rc != SXRET_OK ||*/ pArch->nCentralSize > SXI32_HIGH ){
 		return SXERR_CORRUPT;
 	}
 	/* Starting offset of central directory */
 	rc = SyLittleEndianUnpack32(&pArch->nCentralOfft,&zBuf[16],sizeof(sxu32));
 	if( /*rc != SXRET_OK ||*/ pArch->nCentralSize > SXI32_HIGH ){
 		return SXERR_CORRUPT;
 	}
 	
 	return SXRET_OK;
 }
 /*
  * Fill the zip entry with the appropriate information from the central directory
  */
static sxi32 GetCentralDirectoryEntry(SyArchive *pArch,SyArchiveEntry *pEntry,const unsigned char *zCentral,sxu32 *pNextOffset)
 { 
 	SyString *pName = &pEntry->sFileName; /* File name */
 	sxu16 nDosDate,nDosTime;
	sxu16 nComment = 0 ;
	sxu32 nMagic = 0; /* cc -O6 warning */
	sxi32 rc; 	
	nDosDate = nDosTime = 0; /* cc -O6 warning */
	SXUNUSED(pArch);
 	/* Sanity check */
 	rc = SyLittleEndianUnpack32(&nMagic,zCentral,sizeof(sxu32));
 	if( /* rc != SXRET_OK || */ nMagic != SXZIP_CENTRAL_MAGIC ){
 		rc = SXERR_CORRUPT; 		
 		/*
 		 * Try to recover by examing the next central directory record.
 		 * Dont worry here,there is no risk of an infinite loop since
		 * the buffer size is delimited.
 		 */

 		/* pName->nByte = 0; nComment = 0; pName->nExtra = 0 */
 		goto update;
 	}
 	/*
 	 * entry name length
 	 */
 	SyLittleEndianUnpack16((sxu16 *)&pName->nByte,&zCentral[28],sizeof(sxu16));
 	if( pName->nByte > SXI16_HIGH /* SXU16_HIGH */){
 		 rc = SXERR_BIG;
 		 goto update;
 	}
 	/* Extra information */
 	SyLittleEndianUnpack16(&pEntry->nExtra,&zCentral[30],sizeof(sxu16));
 	/* Comment length  */
 	SyLittleEndianUnpack16(&nComment,&zCentral[32],sizeof(sxu16)); 	
 	/* Compression method 0 == stored / 8 == deflated */
 	rc = SyLittleEndianUnpack16(&pEntry->nComprMeth,&zCentral[10],sizeof(sxu16));
 	/* DOS Timestamp */
 	SyLittleEndianUnpack16(&nDosTime,&zCentral[12],sizeof(sxu16));
 	SyLittleEndianUnpack16(&nDosDate,&zCentral[14],sizeof(sxu16));
 	SyDosTimeFormat((nDosDate << 16 | nDosTime),&pEntry->sFmt);
	/* Little hack to fix month index  */
	pEntry->sFmt.tm_mon--;
 	/* CRC32 */
 	rc = SyLittleEndianUnpack32(&pEntry->nCrc,&zCentral[16],sizeof(sxu32));
 	/* Content size before compression */
 	rc = SyLittleEndianUnpack32(&pEntry->nByte,&zCentral[24],sizeof(sxu32));
 	if(  pEntry->nByte > SXI32_HIGH ){
 		rc = SXERR_BIG;
 		goto update; 
 	} 	
 	/*
 	 * Content size after compression.
 	 * Note that if the file is stored pEntry->nByte should be equal to pEntry->nByteCompr
 	 */ 
 	rc = SyLittleEndianUnpack32(&pEntry->nByteCompr,&zCentral[20],sizeof(sxu32));
 	if( pEntry->nByteCompr > SXI32_HIGH ){
 		rc = SXERR_BIG;
 		goto update; 
 	} 	 	
 	/* Finally grab the contents offset */
 	SyLittleEndianUnpack32(&pEntry->nOfft,&zCentral[42],sizeof(sxu32));
 	if( pEntry->nOfft > SXI32_HIGH ){
 		rc = SXERR_BIG;
 		goto update;
 	} 	
  	 rc = SXRET_OK;
update:	  
 	/* Update the offset to point to the next central directory record */
 	*pNextOffset =  SXZIP_CENTRAL_HDRSZ + pName->nByte + pEntry->nExtra + nComment;
 	return rc; /* Report failure or success */
}
static sxi32 ZipFixOffset(SyArchiveEntry *pEntry,void *pSrc)
{	
	sxu16 nExtra,nNameLen;
	unsigned char *zHdr;
	nExtra = nNameLen = 0;
	zHdr = (unsigned char *)pSrc;
	zHdr = &zHdr[pEntry->nOfft];
	if( SyMemcmp(zHdr,"PK\003\004",sizeof(sxu32)) != 0 ){
		return SXERR_CORRUPT;
	}
	SyLittleEndianUnpack16(&nNameLen,&zHdr[26],sizeof(sxu16));
	SyLittleEndianUnpack16(&nExtra,&zHdr[28],sizeof(sxu16));
	/* Fix contents offset */
	pEntry->nOfft += SXZIP_LOCAL_HDRSZ + nExtra + nNameLen;
	return SXRET_OK;
}
/*
 * Extract all valid entries from the central directory 
 */	 
static sxi32 ZipExtract(SyArchive *pArch,const unsigned char *zCentral,sxu32 nLen,void *pSrc)
{
	SyArchiveEntry *pEntry,*pDup;
	const unsigned char *zEnd ; /* End of central directory */
	sxu32 nIncr,nOfft;          /* Central Offset */
	SyString *pName;	        /* Entry name */
	char *zName;
	sxi32 rc;
	
	nOfft = nIncr = 0;
	zEnd = &zCentral[nLen];
	
	for(;;){
		if( &zCentral[nOfft] >= zEnd ){
			break;
		}
		/* Add a new entry */
		pEntry = (SyArchiveEntry *)SyMemBackendPoolAlloc(pArch->pAllocator,sizeof(SyArchiveEntry));
		if( pEntry == 0 ){
			break;
		}
		SyZero(pEntry,sizeof(SyArchiveEntry)); 
		pEntry->nMagic = SXARCH_MAGIC;
		nIncr = 0;
		rc = GetCentralDirectoryEntry(&(*pArch),pEntry,&zCentral[nOfft],&nIncr);
		if( rc == SXRET_OK ){
			/* Fix the starting record offset so we can access entry contents correctly */
			rc = ZipFixOffset(pEntry,pSrc);
		}
		if(rc != SXRET_OK ){
			sxu32 nJmp = 0;
			SyMemBackendPoolFree(pArch->pAllocator,pEntry);
			/* Try to recover by brute-forcing for a valid central directory record */
			if( SXRET_OK == SyBlobSearch((const void *)&zCentral[nOfft + nIncr],(sxu32)(zEnd - &zCentral[nOfft + nIncr]),
				(const void *)"PK\001\002",sizeof(sxu32),&nJmp)){
					nOfft += nIncr + nJmp; /* Check next entry */
					continue;
			}
			break; /* Giving up,archive is hopelessly corrupted */
		}
		pName = &pEntry->sFileName;
		pName->zString = (const char *)&zCentral[nOfft + SXZIP_CENTRAL_HDRSZ];
		if( pName->nByte <= 0 || ( pEntry->nByte <= 0 && pName->zString[pName->nByte - 1] != '/') ){
			/* Ignore zero length records (except folders) and records without names */
			SyMemBackendPoolFree(pArch->pAllocator,pEntry); 
		 	nOfft += nIncr; /* Check next entry */
			continue;
		}
		zName = SyMemBackendStrDup(pArch->pAllocator,pName->zString,pName->nByte);
 	 	if( zName == 0 ){
 	 		 SyMemBackendPoolFree(pArch->pAllocator,pEntry); 
		 	 nOfft += nIncr; /* Check next entry */
			continue;
 	 	}
		pName->zString = (const char *)zName;
		/* Check for duplicates */
		rc = ArchiveHashGetEntry(&(*pArch),pName->zString,pName->nByte,&pDup);
		if( rc == SXRET_OK ){
			/* Another entry with the same name exists ; link them together */
			pEntry->pNextName = pDup->pNextName;
			pDup->pNextName = pEntry;
			pDup->nDup++;
		}else{
			/* Insert in hashtable */
			ArchiveHashInstallEntry(pArch,pEntry);
		}	
		nOfft += nIncr;	/* Check next record */
	}
	pArch->pCursor = pArch->pList;
	
	return pArch->nLoaded > 0 ? SXRET_OK : SXERR_EMPTY;
} 						
PH7_PRIVATE sxi32 SyZipExtractFromBuf(SyArchive *pArch,const char *zBuf,sxu32 nLen)
 {
 	const unsigned char *zCentral,*zEnd;
 	sxi32 rc;
#if defined(UNTRUST)
 	if( SXARCH_INVALID(pArch) || zBuf == 0 ){
 		return SXERR_INVALID;
 	}
#endif 	
 	/* The miminal size of a zip archive:
 	 * LOCAL_HDR_SZ + CENTRAL_HDR_SZ + END_OF_CENTRAL_HDR_SZ
 	 * 		30				46				22
 	 */
 	 if( nLen < SXZIP_LOCAL_HDRSZ + SXZIP_CENTRAL_HDRSZ + SXZIP_END_CENTRAL_HDRSZ ){
 	 	return SXERR_CORRUPT; /* Don't bother processing return immediately */
 	 }
 	  		
 	zEnd = (unsigned char *)&zBuf[nLen - SXZIP_END_CENTRAL_HDRSZ];
 	/* Find the end of central directory */
 	while( ((sxu32)((unsigned char *)&zBuf[nLen] - zEnd) < (SXZIP_END_CENTRAL_HDRSZ + SXI16_HIGH)) &&
		zEnd > (unsigned char *)zBuf && SyMemcmp(zEnd,"PK\005\006",sizeof(sxu32)) != 0 ){
 		zEnd--;
 	} 	
 	/* Parse the end of central directory */
 	rc = ParseEndOfCentralDirectory(&(*pArch),zEnd);
 	if( rc != SXRET_OK ){
 		return rc;
 	} 	
 	
 	/* Find the starting offset of the central directory */
 	zCentral = &zEnd[-(sxi32)pArch->nCentralSize];
 	if( zCentral <= (unsigned char *)zBuf || SyMemcmp(zCentral,"PK\001\002",sizeof(sxu32)) != 0 ){
 		if( pArch->nCentralOfft >= nLen ){
			/* Corrupted central directory offset */
 			return SXERR_CORRUPT;
 		}
 		zCentral = (unsigned char *)&zBuf[pArch->nCentralOfft];
 		if( SyMemcmp(zCentral,"PK\001\002",sizeof(sxu32)) != 0 ){
 			/* Corrupted zip archive */
 			return SXERR_CORRUPT;
 		}
 		/* Fall thru and extract all valid entries from the central directory */
 	}
 	rc = ZipExtract(&(*pArch),zCentral,(sxu32)(zEnd - zCentral),(void *)zBuf);
 	return rc;
 }
/*
  * Default comparison function.
  */
 static sxi32 ArchiveHashCmp(const SyString *pStr1,const SyString *pStr2)
 {
	 sxi32 rc;
	 rc = SyStringCmp(pStr1,pStr2,SyMemcmp);
	 return rc;
 }
PH7_PRIVATE sxi32 SyArchiveInit(SyArchive *pArch,SyMemBackend *pAllocator,ProcHash xHash,ProcRawStrCmp xCmp)
 {
	SyArchiveEntry **apHash;
#if defined(UNTRUST)
 	if( pArch == 0 ){
 		return SXERR_EMPTY;
 	}
#endif
 	SyZero(pArch,sizeof(SyArchive));
 	/* Allocate a new hashtable */ 	
	apHash = (SyArchiveEntry **)SyMemBackendAlloc(&(*pAllocator),SXARCHIVE_HASH_SIZE * sizeof(SyArchiveEntry *));
	if( apHash == 0){
		return SXERR_MEM;
	}
	SyZero(apHash,SXARCHIVE_HASH_SIZE * sizeof(SyArchiveEntry *));
	pArch->apHash = apHash;
	pArch->xHash  = xHash ? xHash : SyBinHash;
	pArch->xCmp   = xCmp ? xCmp : ArchiveHashCmp;
	pArch->nSize  = SXARCHIVE_HASH_SIZE;
 	pArch->pAllocator = &(*pAllocator);
 	pArch->nMagic = SXARCH_MAGIC;
 	return SXRET_OK;
 }
 static sxi32 ArchiveReleaseEntry(SyMemBackend *pAllocator,SyArchiveEntry *pEntry)
 {
 	SyArchiveEntry *pDup = pEntry->pNextName;
 	SyArchiveEntry *pNextDup;
 	
 	/* Release duplicates first since there are not stored in the hashtable */
 	for(;;){
 		if( pEntry->nDup == 0 ){
 			break;
 		}
 		pNextDup = pDup->pNextName;
		pDup->nMagic = 0x2661;
 		SyMemBackendFree(pAllocator,(void *)SyStringData(&pDup->sFileName));
 		SyMemBackendPoolFree(pAllocator,pDup); 		
 		pDup = pNextDup;
 		pEntry->nDup--;
 	} 		
	pEntry->nMagic = 0x2661;
  	SyMemBackendFree(pAllocator,(void *)SyStringData(&pEntry->sFileName));
 	SyMemBackendPoolFree(pAllocator,pEntry);
 	return SXRET_OK;
 } 	
PH7_PRIVATE sxi32 SyArchiveRelease(SyArchive *pArch)
 {
	SyArchiveEntry *pEntry,*pNext;
 	pEntry = pArch->pList; 	 	
	for(;;){
		if( pArch->nLoaded < 1 ){
			break;
		}
		pNext = pEntry->pNext;
		MACRO_LD_REMOVE(pArch->pList,pEntry);
		ArchiveReleaseEntry(pArch->pAllocator,pEntry);
		pEntry = pNext;
		pArch->nLoaded--;
	}
	SyMemBackendFree(pArch->pAllocator,pArch->apHash);
	pArch->pCursor = 0;
	pArch->nMagic = 0x2626;
	return SXRET_OK;
 }
 PH7_PRIVATE sxi32 SyArchiveResetLoopCursor(SyArchive *pArch)
 {
	pArch->pCursor = pArch->pList;
	return SXRET_OK;
 }
 PH7_PRIVATE sxi32 SyArchiveGetNextEntry(SyArchive *pArch,SyArchiveEntry **ppEntry)
 {
	SyArchiveEntry *pNext;
	if( pArch->pCursor == 0 ){
		/* Rewind the cursor */
		pArch->pCursor = pArch->pList;
		return SXERR_EOF;
	}
	*ppEntry = pArch->pCursor;
	 pNext = pArch->pCursor->pNext;
	 /* Advance the cursor to the next entry */
	 pArch->pCursor = pNext;
	 return SXRET_OK;
  }
#endif /* PH7_DISABLE_BUILTIN_FUNC */
/*
 * Psuedo Random Number Generator (PRNG)
 * @authors: SQLite authors <http://www.sqlite.org/>
 * @status: Public Domain
 * NOTE:
 *  Nothing in this file or anywhere else in the library does any kind of
 *  encryption.The RC4 algorithm is being used as a PRNG (pseudo-random
 *  number generator) not as an encryption device.
 */
#define SXPRNG_MAGIC	0x13C4
#ifdef __UNIXES__
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
#include <sys/time.h>
#endif
static sxi32 SyOSUtilRandomSeed(void *pBuf,sxu32 nLen,void *pUnused)
{
	char *zBuf = (char *)pBuf;
#ifdef __WINNT__
	DWORD nProcessID; /* Yes,keep it uninitialized when compiling using the MinGW32 builds tools */
#elif defined(__UNIXES__)
	pid_t pid;
	int fd;
#else
	char zGarbage[128]; /* Yes,keep this buffer uninitialized */
#endif
	SXUNUSED(pUnused);
#ifdef __WINNT__
#ifndef __MINGW32__
	nProcessID = GetProcessId(GetCurrentProcess());
#endif
	SyMemcpy((const void *)&nProcessID,zBuf,SXMIN(nLen,sizeof(DWORD)));
	if( (sxu32)(&zBuf[nLen] - &zBuf[sizeof(DWORD)]) >= sizeof(SYSTEMTIME)  ){
		GetSystemTime((LPSYSTEMTIME)&zBuf[sizeof(DWORD)]);
	}
#elif defined(__UNIXES__)
	fd = open("/dev/urandom",O_RDONLY);
	if (fd >= 0 ){
		if( read(fd,zBuf,nLen) > 0 ){
			close(fd);
			return SXRET_OK;
		}
		/* FALL THRU */
	}
	close(fd);
	pid = getpid();
	SyMemcpy((const void *)&pid,zBuf,SXMIN(nLen,sizeof(pid_t)));
	if( &zBuf[nLen] - &zBuf[sizeof(pid_t)] >= (int)sizeof(struct timeval)  ){
		gettimeofday((struct timeval *)&zBuf[sizeof(pid_t)],0);
	}
#else
	/* Fill with uninitialized data */
	SyMemcpy(zGarbage,zBuf,SXMIN(nLen,sizeof(zGarbage)));
#endif
	return SXRET_OK;
}
PH7_PRIVATE sxi32 SyRandomnessInit(SyPRNGCtx *pCtx,ProcRandomSeed xSeed,void * pUserData)
{
	char zSeed[256];
	sxu8 t;
	sxi32 rc;
	sxu32 i;
	if( pCtx->nMagic == SXPRNG_MAGIC ){
		return SXRET_OK; /* Already initialized */
	}
 /* Initialize the state of the random number generator once,
  ** the first time this routine is called.The seed value does
  ** not need to contain a lot of randomness since we are not
  ** trying to do secure encryption or anything like that...
  */	
	if( xSeed == 0 ){
		xSeed = SyOSUtilRandomSeed;
	}
	rc = xSeed(zSeed,sizeof(zSeed),pUserData);
	if( rc != SXRET_OK ){
		return rc;
	}
	pCtx->i = pCtx->j = 0;
	for(i=0; i < SX_ARRAYSIZE(pCtx->s) ; i++){
		pCtx->s[i] = (unsigned char)i;
    }
    for(i=0; i < sizeof(zSeed) ; i++){
      pCtx->j += pCtx->s[i] + zSeed[i];
      t = pCtx->s[pCtx->j];
      pCtx->s[pCtx->j] = pCtx->s[i];
      pCtx->s[i] = t;
    }
	pCtx->nMagic = SXPRNG_MAGIC;
	
	return SXRET_OK;
}
/*
 * Get a single 8-bit random value using the RC4 PRNG.
 */
static sxu8 randomByte(SyPRNGCtx *pCtx)
{
  sxu8 t;
  
  /* Generate and return single random byte */
  pCtx->i++;
  t = pCtx->s[pCtx->i];
  pCtx->j += t;
  pCtx->s[pCtx->i] = pCtx->s[pCtx->j];
  pCtx->s[pCtx->j] = t;
  t += pCtx->s[pCtx->i];
  return pCtx->s[t];
}
PH7_PRIVATE sxi32 SyRandomness(SyPRNGCtx *pCtx,void *pBuf,sxu32 nLen)
{
	unsigned char *zBuf = (unsigned char *)pBuf;
	unsigned char *zEnd = &zBuf[nLen];
#if defined(UNTRUST)
	if( pCtx == 0 || pBuf == 0 || nLen <= 0 ){
		return SXERR_EMPTY;
	}
#endif
	if(pCtx->nMagic != SXPRNG_MAGIC ){
		return SXERR_CORRUPT;
	}
	for(;;){
		if( zBuf >= zEnd ){break;}	zBuf[0] = randomByte(pCtx);	zBuf++;	
		if( zBuf >= zEnd ){break;}	zBuf[0] = randomByte(pCtx);	zBuf++;	
		if( zBuf >= zEnd ){break;}	zBuf[0] = randomByte(pCtx);	zBuf++;	
		if( zBuf >= zEnd ){break;}	zBuf[0] = randomByte(pCtx);	zBuf++;	
	}
	return SXRET_OK;  
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
#ifndef PH7_DISABLE_HASH_FUNC
/* SyRunTimeApi: sxhash.c */
/*
 * This code implements the MD5 message-digest algorithm.
 * The algorithm is due to Ron Rivest.This code was
 * written by Colin Plumb in 1993, no copyright is claimed.
 * This code is in the public domain; do with it what you wish.
 *
 * Equivalent code is available from RSA Data Security, Inc.
 * This code has been tested against that, and is equivalent,
 * except that you don't need to include two pages of legalese
 * with every copy.
 *
 * To compute the message digest of a chunk of bytes, declare an
 * MD5Context structure, pass it to MD5Init, call MD5Update as
 * needed on buffers full of bytes, and then call MD5Final, which
 * will fill a supplied 16-byte array with the digest.
 */
#define SX_MD5_BINSZ	16
#define SX_MD5_HEXSZ	32
/*
 * Note: this code is harmless on little-endian machines.
 */
static void byteReverse (unsigned char *buf, unsigned longs)
{
	sxu32 t;
        do {
                t = (sxu32)((unsigned)buf[3]<<8 | buf[2]) << 16 |
                            ((unsigned)buf[1]<<8 | buf[0]);
                *(sxu32*)buf = t;
                buf += 4;
        } while (--longs);
}
/* The four core functions - F1 is optimized somewhat */

/* #define F1(x, y, z) (x & y | ~x & z) */
#ifdef F1
#undef F1
#endif
#ifdef F2
#undef F2
#endif
#ifdef F3
#undef F3
#endif
#ifdef F4
#undef F4
#endif

#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))

/* This is the central step in the MD5 algorithm.*/
#define SX_MD5STEP(f, w, x, y, z, data, s) \
        ( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )

/*
 * The core of the MD5 algorithm, this alters an existing MD5 hash to
 * reflect the addition of 16 longwords of new data.MD5Update blocks
 * the data and converts bytes into longwords for this routine.
 */
static void MD5Transform(sxu32 buf[4], const sxu32 in[16])
{
	register sxu32 a, b, c, d;

        a = buf[0];
        b = buf[1];
        c = buf[2];
        d = buf[3];

        SX_MD5STEP(F1, a, b, c, d, in[ 0]+0xd76aa478,  7);
        SX_MD5STEP(F1, d, a, b, c, in[ 1]+0xe8c7b756, 12);
        SX_MD5STEP(F1, c, d, a, b, in[ 2]+0x242070db, 17);
        SX_MD5STEP(F1, b, c, d, a, in[ 3]+0xc1bdceee, 22);
        SX_MD5STEP(F1, a, b, c, d, in[ 4]+0xf57c0faf,  7);
        SX_MD5STEP(F1, d, a, b, c, in[ 5]+0x4787c62a, 12);
        SX_MD5STEP(F1, c, d, a, b, in[ 6]+0xa8304613, 17);
        SX_MD5STEP(F1, b, c, d, a, in[ 7]+0xfd469501, 22);
        SX_MD5STEP(F1, a, b, c, d, in[ 8]+0x698098d8,  7);
        SX_MD5STEP(F1, d, a, b, c, in[ 9]+0x8b44f7af, 12);
        SX_MD5STEP(F1, c, d, a, b, in[10]+0xffff5bb1, 17);
        SX_MD5STEP(F1, b, c, d, a, in[11]+0x895cd7be, 22);
        SX_MD5STEP(F1, a, b, c, d, in[12]+0x6b901122,  7);
        SX_MD5STEP(F1, d, a, b, c, in[13]+0xfd987193, 12);
        SX_MD5STEP(F1, c, d, a, b, in[14]+0xa679438e, 17);
        SX_MD5STEP(F1, b, c, d, a, in[15]+0x49b40821, 22);

        SX_MD5STEP(F2, a, b, c, d, in[ 1]+0xf61e2562,  5);
        SX_MD5STEP(F2, d, a, b, c, in[ 6]+0xc040b340,  9);
        SX_MD5STEP(F2, c, d, a, b, in[11]+0x265e5a51, 14);
        SX_MD5STEP(F2, b, c, d, a, in[ 0]+0xe9b6c7aa, 20);
        SX_MD5STEP(F2, a, b, c, d, in[ 5]+0xd62f105d,  5);
        SX_MD5STEP(F2, d, a, b, c, in[10]+0x02441453,  9);
        SX_MD5STEP(F2, c, d, a, b, in[15]+0xd8a1e681, 14);
        SX_MD5STEP(F2, b, c, d, a, in[ 4]+0xe7d3fbc8, 20);
        SX_MD5STEP(F2, a, b, c, d, in[ 9]+0x21e1cde6,  5);
        SX_MD5STEP(F2, d, a, b, c, in[14]+0xc33707d6,  9);
        SX_MD5STEP(F2, c, d, a, b, in[ 3]+0xf4d50d87, 14);
        SX_MD5STEP(F2, b, c, d, a, in[ 8]+0x455a14ed, 20);
        SX_MD5STEP(F2, a, b, c, d, in[13]+0xa9e3e905,  5);
        SX_MD5STEP(F2, d, a, b, c, in[ 2]+0xfcefa3f8,  9);
        SX_MD5STEP(F2, c, d, a, b, in[ 7]+0x676f02d9, 14);
        SX_MD5STEP(F2, b, c, d, a, in[12]+0x8d2a4c8a, 20);

        SX_MD5STEP(F3, a, b, c, d, in[ 5]+0xfffa3942,  4);
        SX_MD5STEP(F3, d, a, b, c, in[ 8]+0x8771f681, 11);
        SX_MD5STEP(F3, c, d, a, b, in[11]+0x6d9d6122, 16);
        SX_MD5STEP(F3, b, c, d, a, in[14]+0xfde5380c, 23);
        SX_MD5STEP(F3, a, b, c, d, in[ 1]+0xa4beea44,  4);
        SX_MD5STEP(F3, d, a, b, c, in[ 4]+0x4bdecfa9, 11);
        SX_MD5STEP(F3, c, d, a, b, in[ 7]+0xf6bb4b60, 16);
        SX_MD5STEP(F3, b, c, d, a, in[10]+0xbebfbc70, 23);
        SX_MD5STEP(F3, a, b, c, d, in[13]+0x289b7ec6,  4);
        SX_MD5STEP(F3, d, a, b, c, in[ 0]+0xeaa127fa, 11);
        SX_MD5STEP(F3, c, d, a, b, in[ 3]+0xd4ef3085, 16);
        SX_MD5STEP(F3, b, c, d, a, in[ 6]+0x04881d05, 23);
        SX_MD5STEP(F3, a, b, c, d, in[ 9]+0xd9d4d039,  4);
        SX_MD5STEP(F3, d, a, b, c, in[12]+0xe6db99e5, 11);
        SX_MD5STEP(F3, c, d, a, b, in[15]+0x1fa27cf8, 16);
        SX_MD5STEP(F3, b, c, d, a, in[ 2]+0xc4ac5665, 23);

        SX_MD5STEP(F4, a, b, c, d, in[ 0]+0xf4292244,  6);
        SX_MD5STEP(F4, d, a, b, c, in[ 7]+0x432aff97, 10);
        SX_MD5STEP(F4, c, d, a, b, in[14]+0xab9423a7, 15);
        SX_MD5STEP(F4, b, c, d, a, in[ 5]+0xfc93a039, 21);
        SX_MD5STEP(F4, a, b, c, d, in[12]+0x655b59c3,  6);
        SX_MD5STEP(F4, d, a, b, c, in[ 3]+0x8f0ccc92, 10);
        SX_MD5STEP(F4, c, d, a, b, in[10]+0xffeff47d, 15);
        SX_MD5STEP(F4, b, c, d, a, in[ 1]+0x85845dd1, 21);
        SX_MD5STEP(F4, a, b, c, d, in[ 8]+0x6fa87e4f,  6);
        SX_MD5STEP(F4, d, a, b, c, in[15]+0xfe2ce6e0, 10);
        SX_MD5STEP(F4, c, d, a, b, in[ 6]+0xa3014314, 15);
        SX_MD5STEP(F4, b, c, d, a, in[13]+0x4e0811a1, 21);
        SX_MD5STEP(F4, a, b, c, d, in[ 4]+0xf7537e82,  6);
        SX_MD5STEP(F4, d, a, b, c, in[11]+0xbd3af235, 10);
        SX_MD5STEP(F4, c, d, a, b, in[ 2]+0x2ad7d2bb, 15);
        SX_MD5STEP(F4, b, c, d, a, in[ 9]+0xeb86d391, 21);

        buf[0] += a;
        buf[1] += b;
        buf[2] += c;
        buf[3] += d;
}
/*
 * Update context to reflect the concatenation of another buffer full
 * of bytes.
 */
PH7_PRIVATE void MD5Update(MD5Context *ctx, const unsigned char *buf, unsigned int len)
{
	sxu32 t;

        /* Update bitcount */
        t = ctx->bits[0];
        if ((ctx->bits[0] = t + ((sxu32)len << 3)) < t)
                ctx->bits[1]++; /* Carry from low to high */
        ctx->bits[1] += len >> 29;
        t = (t >> 3) & 0x3f;    /* Bytes already in shsInfo->data */
        /* Handle any leading odd-sized chunks */
        if ( t ) {
                unsigned char *p = (unsigned char *)ctx->in + t;

                t = 64-t;
                if (len < t) {
                        SyMemcpy(buf,p,len);
                        return;
                }
                SyMemcpy(buf,p,t);
                byteReverse(ctx->in, 16);
                MD5Transform(ctx->buf, (sxu32*)ctx->in);
                buf += t;
                len -= t;
        }
        /* Process data in 64-byte chunks */
        while (len >= 64) {
                SyMemcpy(buf,ctx->in,64);
                byteReverse(ctx->in, 16);
                MD5Transform(ctx->buf, (sxu32*)ctx->in);
                buf += 64;
                len -= 64;
        }
        /* Handle any remaining bytes of data.*/
        SyMemcpy(buf,ctx->in,len);
}
/*
 * Final wrapup - pad to 64-byte boundary with the bit pattern 
 * 1 0* (64-bit count of bits processed, MSB-first)
 */
PH7_PRIVATE void MD5Final(unsigned char digest[16], MD5Context *ctx){
        unsigned count;
        unsigned char *p;

        /* Compute number of bytes mod 64 */
        count = (ctx->bits[0] >> 3) & 0x3F;

        /* Set the first char of padding to 0x80.This is safe since there is
           always at least one byte free */
        p = ctx->in + count;
        *p++ = 0x80;

        /* Bytes of padding needed to make 64 bytes */
        count = 64 - 1 - count;

        /* Pad out to 56 mod 64 */
        if (count < 8) {
                /* Two lots of padding:  Pad the first block to 64 bytes */
               SyZero(p,count);
                byteReverse(ctx->in, 16);
                MD5Transform(ctx->buf, (sxu32*)ctx->in);

                /* Now fill the next block with 56 bytes */
                SyZero(ctx->in,56);
        } else {
                /* Pad block to 56 bytes */
                SyZero(p,count-8);
        }
        byteReverse(ctx->in, 14);

        /* Append length in bits and transform */
        ((sxu32*)ctx->in)[ 14 ] = ctx->bits[0];
        ((sxu32*)ctx->in)[ 15 ] = ctx->bits[1];

        MD5Transform(ctx->buf, (sxu32*)ctx->in);
        byteReverse((unsigned char *)ctx->buf, 4);
        SyMemcpy(ctx->buf,digest,0x10);
        SyZero(ctx,sizeof(ctx));    /* In case it's sensitive */
}
#undef F1
#undef F2
#undef F3
#undef F4
PH7_PRIVATE sxi32 MD5Init(MD5Context *pCtx)
{	
	pCtx->buf[0] = 0x67452301;
    pCtx->buf[1] = 0xefcdab89;
    pCtx->buf[2] = 0x98badcfe;
    pCtx->buf[3] = 0x10325476;
    pCtx->bits[0] = 0;
    pCtx->bits[1] = 0;
   
   return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMD5Compute(const void *pIn,sxu32 nLen,unsigned char zDigest[16])
{
	MD5Context sCtx;
	MD5Init(&sCtx);
	MD5Update(&sCtx,(const unsigned char *)pIn,nLen);
	MD5Final(zDigest,&sCtx);	
	return SXRET_OK;
}
/*
 * SHA-1 in C
 * By Steve Reid <steve@edmweb.com>
 * Status: Public Domain
 */
/*
 * blk0() and blk() perform the initial expand.
 * I got the idea of expanding during the round function from SSLeay
 *
 * blk0le() for little-endian and blk0be() for big-endian.
 */
#if __GNUC__ && (defined(__i386__) || defined(__x86_64__))
/*
 * GCC by itself only generates left rotates.  Use right rotates if
 * possible to be kinder to dinky implementations with iterative rotate
 * instructions.
 */
#define SHA_ROT(op, x, k) \
        ({ unsigned int y; asm(op " %1,%0" : "=r" (y) : "I" (k), "0" (x)); y; })
#define rol(x,k) SHA_ROT("roll", x, k)
#define ror(x,k) SHA_ROT("rorl", x, k)

#else
/* Generic C equivalent */
#define SHA_ROT(x,l,r) ((x) << (l) | (x) >> (r))
#define rol(x,k) SHA_ROT(x,k,32-(k))
#define ror(x,k) SHA_ROT(x,32-(k),k)
#endif

#define blk0le(i) (block[i] = (ror(block[i],8)&0xFF00FF00) \
    |(rol(block[i],8)&0x00FF00FF))
#define blk0be(i) block[i]
#define blk(i) (block[i&15] = rol(block[(i+13)&15]^block[(i+8)&15] \
    ^block[(i+2)&15]^block[i&15],1))

/*
 * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1
 *
 * Rl0() for little-endian and Rb0() for big-endian.  Endianness is 
 * determined at run-time.
 */
#define Rl0(v,w,x,y,z,i) \
    z+=((w&(x^y))^y)+blk0le(i)+0x5A827999+rol(v,5);w=ror(w,2);
#define Rb0(v,w,x,y,z,i) \
    z+=((w&(x^y))^y)+blk0be(i)+0x5A827999+rol(v,5);w=ror(w,2);
#define R1(v,w,x,y,z,i) \
    z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=ror(w,2);
#define R2(v,w,x,y,z,i) \
    z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=ror(w,2);
#define R3(v,w,x,y,z,i) \
    z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=ror(w,2);
#define R4(v,w,x,y,z,i) \
    z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=ror(w,2);

/*
 * Hash a single 512-bit block. This is the core of the algorithm.
 */
#define a qq[0]
#define b qq[1]
#define c qq[2]
#define d qq[3]
#define e qq[4]

static void SHA1Transform(unsigned int state[5], const unsigned char buffer[64])
{
  unsigned int qq[5]; /* a, b, c, d, e; */
  static int one = 1;
  unsigned int block[16];
  SyMemcpy(buffer,(void *)block,64);
  SyMemcpy(state,qq,5*sizeof(unsigned int));

  /* Copy context->state[] to working vars */
  /*
  a = state[0];
  b = state[1];
  c = state[2];
  d = state[3];
  e = state[4];
  */

  /* 4 rounds of 20 operations each. Loop unrolled. */
  if( 1 == *(unsigned char*)&one ){
    Rl0(a,b,c,d,e, 0); Rl0(e,a,b,c,d, 1); Rl0(d,e,a,b,c, 2); Rl0(c,d,e,a,b, 3);
    Rl0(b,c,d,e,a, 4); Rl0(a,b,c,d,e, 5); Rl0(e,a,b,c,d, 6); Rl0(d,e,a,b,c, 7);
    Rl0(c,d,e,a,b, 8); Rl0(b,c,d,e,a, 9); Rl0(a,b,c,d,e,10); Rl0(e,a,b,c,d,11);
    Rl0(d,e,a,b,c,12); Rl0(c,d,e,a,b,13); Rl0(b,c,d,e,a,14); Rl0(a,b,c,d,e,15);
  }else{
    Rb0(a,b,c,d,e, 0); Rb0(e,a,b,c,d, 1); Rb0(d,e,a,b,c, 2); Rb0(c,d,e,a,b, 3);
    Rb0(b,c,d,e,a, 4); Rb0(a,b,c,d,e, 5); Rb0(e,a,b,c,d, 6); Rb0(d,e,a,b,c, 7);
    Rb0(c,d,e,a,b, 8); Rb0(b,c,d,e,a, 9); Rb0(a,b,c,d,e,10); Rb0(e,a,b,c,d,11);
    Rb0(d,e,a,b,c,12); Rb0(c,d,e,a,b,13); Rb0(b,c,d,e,a,14); Rb0(a,b,c,d,e,15);
  }
  R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
  R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
  R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
  R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
  R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
  R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
  R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
  R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
  R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
  R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
  R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
  R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
  R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
  R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
  R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
  R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);

  /* Add the working vars back into context.state[] */
  state[0] += a;
  state[1] += b;
  state[2] += c;
  state[3] += d;
  state[4] += e;
}
#undef a
#undef b
#undef c
#undef d
#undef e
/*
 * SHA1Init - Initialize new context
 */
PH7_PRIVATE void SHA1Init(SHA1Context *context){
    /* SHA1 initialization constants */
    context->state[0] = 0x67452301;
    context->state[1] = 0xEFCDAB89;
    context->state[2] = 0x98BADCFE;
    context->state[3] = 0x10325476;
    context->state[4] = 0xC3D2E1F0;
    context->count[0] = context->count[1] = 0;
}
/*
 * Run your data through this.
 */
PH7_PRIVATE void SHA1Update(SHA1Context *context,const unsigned char *data,unsigned int len){
    unsigned int i, j;

    j = context->count[0];
    if ((context->count[0] += len << 3) < j)
	context->count[1] += (len>>29)+1;
    j = (j >> 3) & 63;
    if ((j + len) > 63) {
		(void)SyMemcpy(data,&context->buffer[j],  (i = 64-j));
	SHA1Transform(context->state, context->buffer);
	for ( ; i + 63 < len; i += 64)
	    SHA1Transform(context->state, &data[i]);
	j = 0;
    } else {
	i = 0;
    }
	(void)SyMemcpy(&data[i],&context->buffer[j],len - i);
}
/*
 * Add padding and return the message digest.
 */
PH7_PRIVATE void SHA1Final(SHA1Context *context, unsigned char digest[20]){
    unsigned int i;
    unsigned char finalcount[8];

    for (i = 0; i < 8; i++) {
	finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
	 >> ((3-(i & 3)) * 8) ) & 255);	 /* Endian independent */
    }
    SHA1Update(context, (const unsigned char *)"\200", 1);
    while ((context->count[0] & 504) != 448)
	SHA1Update(context, (const unsigned char *)"\0", 1);
    SHA1Update(context, finalcount, 8);  /* Should cause a SHA1Transform() */

    if (digest) {
	for (i = 0; i < 20; i++)
	    digest[i] = (unsigned char)
		((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
    }
}
#undef Rl0
#undef Rb0
#undef R1
#undef R2
#undef R3
#undef R4

PH7_PRIVATE sxi32 SySha1Compute(const void *pIn,sxu32 nLen,unsigned char zDigest[20])
{
	SHA1Context sCtx;
	SHA1Init(&sCtx);
	SHA1Update(&sCtx,(const unsigned char *)pIn,nLen);
	SHA1Final(&sCtx,zDigest);
	return SXRET_OK;
}
static const sxu32 crc32_table[] = {
	0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
	0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
	0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
	0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
	0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
	0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
	0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
	0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
	0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
	0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
	0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
	0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
	0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
	0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
	0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
	0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
	0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
	0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
	0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
	0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
	0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
	0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
	0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
	0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
	0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
	0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
	0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
	0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
	0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
	0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
	0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
	0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
	0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
	0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
	0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
	0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
	0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
	0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
	0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
	0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
	0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
	0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
	0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
	0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
	0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
	0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
	0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
	0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
	0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
	0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
	0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
	0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
	0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
	0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
	0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
	0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
	0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
	0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
	0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
	0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
	0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
	0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
	0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
	0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
};
#define CRC32C(c,d) (c = ( crc32_table[(c ^ (d)) & 0xFF] ^ (c>>8) ) )
static sxu32 SyCrc32Update(sxu32 crc32,const void *pSrc,sxu32 nLen)
{
	register unsigned char *zIn = (unsigned char *)pSrc;
	unsigned char *zEnd;
	if( zIn == 0 ){
		return crc32;
	}
	zEnd = &zIn[nLen];
	for(;;){
		if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
		if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
		if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
		if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
	}
		
	return crc32;
}
PH7_PRIVATE sxu32 SyCrc32(const void *pSrc,sxu32 nLen)
{
	return SyCrc32Update(SXU32_HIGH,pSrc,nLen);
}
#endif /* PH7_DISABLE_HASH_FUNC */
#endif /* PH7_DISABLE_BUILTIN_FUNC */
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyBinToHexConsumer(const void *pIn,sxu32 nLen,ProcConsumer xConsumer,void *pConsumerData)
{
	static const unsigned char zHexTab[] = "0123456789abcdef";
	const unsigned char *zIn,*zEnd;
	unsigned char zOut[3];
	sxi32 rc;
#if defined(UNTRUST)
	if( pIn == 0 || xConsumer == 0 ){
		return SXERR_EMPTY;
	}
#endif
	zIn   = (const unsigned char *)pIn;
	zEnd  = &zIn[nLen];
	for(;;){
		if( zIn >= zEnd  ){
			break;
		}
		zOut[0] = zHexTab[zIn[0] >> 4];  zOut[1] = zHexTab[zIn[0] & 0x0F];
		rc = xConsumer((const void *)zOut,sizeof(char)*2,pConsumerData);
		if( rc != SXRET_OK ){
			return rc;
		}
		zIn++; 
	}
	return SXRET_OK;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */