static int shortCurcuit(ExprToken *&pTok)
{
if (!pTok)
return 0;
pTok = pTok->next();
int type = pTok->getType();
switch (type)
{
case ExprToken::EXP_STRING:
case ExprToken::EXP_FMT:
case ExprToken::EXP_REGEX:
break;
case ExprToken::EXP_AND:
case ExprToken::EXP_OR:
shortCurcuit(pTok);
//Fall through
case ExprToken::EXP_NOT:
shortCurcuit(pTok);
break;
case ExprToken::EXP_EQ:
case ExprToken::EXP_NE:
case ExprToken::EXP_LE:
case ExprToken::EXP_LESS:
case ExprToken::EXP_GE:
case ExprToken::EXP_GREAT:
pTok = pTok->next();
if (pTok)
pTok = pTok->next();
break;
}
return 1;
}
int SSIEngine::evalOperator( HttpSession *pSession, ExprToken * &pTok )
{
char * p1 = NULL;
int len;
int ret;
if ( !pTok )
return 0;
int type = pTok->getType();
ExprToken * pCur = pTok;
pTok = pTok->next();
switch( type )
{
case ExprToken::EXP_STRING:
return ( pCur->getStr()->len() > 0 );
case ExprToken::EXP_FMT:
{
char achBuf1[40960];
p1 = achBuf1;
len = 40960;
RequestVars::buildString( pCur->getFormat(), pSession, p1, len, 0,
pSession->getReq()->getSSIRuntime()->getRegexResult() );
return len > 0;
}
case ExprToken::EXP_REGEX:
return 0;
case ExprToken::EXP_NOT:
if ( pTok )
{
return !evalOperator( pSession, pTok );
}
else
return 1;
default:
break;
}
if (( type == ExprToken::EXP_AND )||
( type == ExprToken::EXP_OR ))
{
ret = evalOperator( pSession, pTok );
if ((( ret )&&( pTok->getType() == ExprToken::EXP_OR ))||
(( !ret )&&( pTok->getType() == ExprToken::EXP_AND )))
{
if ( pTok )
{
shortCurcuit( pTok );
}
return ret;
}
ret = evalOperator( pSession, pTok );
return ret;
}
if ( !pTok )
return 0;
return compString( pSession, type, pTok );
}
