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BUG#: 2565
TITLE: WQL does implement ISA

DESCRIPTION: Fixes the parser to accept the ISA syntax.  This is strictly
the parser fixes.  It does not add the code to process the ISA classname
result.  That will be added later.  This, however, should pass the SNIA
CTP tests for this function the way most people use that test.

//%2005////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//==============================================================================
/*
**==============================================================================
**
** Includes
**
**==============================================================================
*/

%{

#include <Pegasus/Common/Config.h>
#include <Pegasus/WQL/WQLOperation.h>
#include <Pegasus/WQL/WQLOperand.h>
#include <Pegasus/WQL/WQLParserState.h>
#include <Pegasus/WQL/WQLSelectStatement.h>
#include <string.h>
#include <stdlib.h>

#ifdef PEGASUS_OS_TYPE_WINDOWS
# include <malloc.h>
#endif

#if defined(PEGASUS_COMPILER_ACC) && defined(PEGASUS_OS_HPUX)
# include <alloca.h>
#endif

#if 0
# define WQL_TRACE(X) printf X
#else
# define WQL_TRACE(X)
#endif

extern int WQL_lex();
extern int WQL_error(const char*);

//
// Define the global parser state object:
//

PEGASUS_USING_PEGASUS;

PEGASUS_NAMESPACE_BEGIN

extern WQLParserState* globalParserState;

PEGASUS_NAMESPACE_END

%}

/*
**==============================================================================
**
** Union used to pass tokens from Lexer to this Parser.
**
**==============================================================================
*/

%union 
{
   int intValue;
   double doubleValue;
   char* strValue;
   void* nodeValue;
}

/*
**==============================================================================
**
** Tokens, types, and associative rules.
**
**==============================================================================
*/

%token <intValue> TOK_INTEGER
%token <doubleValue> TOK_DOUBLE
%token <strValue> TOK_STRING
%token <intValue> TOK_TRUE
%token <intValue> TOK_FALSE
%token <intValue> TOK_NULL
%token <intValue> TOK_ISA

%token <intValue> TOK_EQ
%token <intValue> TOK_NE
%token <intValue> TOK_LT
%token <intValue> TOK_LE
%token <intValue> TOK_GT
%token <intValue> TOK_GE

%token <intValue> TOK_NOT
%token <intValue> TOK_OR
%token <intValue> TOK_AND
%token <intValue> TOK_IS

%token <strValue> TOK_IDENTIFIER
%token <intValue> TOK_SELECT
%token <intValue> TOK_WHERE
%token <intValue> TOK_FROM

%token <intValue> TOK_UNEXPECTED_CHAR

%type <strValue> propertyName
%type <nodeValue> propertyList
%type <nodeValue> predicate
%type <nodeValue> comparisonPredicate
// %type <nodeValue> comparisonTerm
%type <nodeValue> nullPredicate
%type <nodeValue> searchCondition
%type <nodeValue> fromClause
%type <nodeValue> whereClause
%type <nodeValue> selectStatement
%type <nodeValue> selectList
%type <nodeValue> selectExpression
%type <strValue> className
%type <intValue> truthValue

%left TOK_OR
%left TOK_AND
%nonassoc TOK_NOT

%%

/*
**==============================================================================
**
** The grammar itself.
**
**==============================================================================
*/

start
    : selectStatement
    {
	WQL_TRACE(("YACC: start\n"));
    }

selectStatement
    : TOK_SELECT selectList selectExpression
    {

    }

selectList
    : '*'
    {
	globalParserState->statement->setAllProperties(true);
    }
    | propertyList
    {

    }

propertyList 
    : propertyName
    {
	globalParserState->statement->appendSelectPropertyName(CIMName($1));
    }
    | propertyList ',' propertyName
    {
	globalParserState->statement->appendSelectPropertyName(CIMName($3));
    }

selectExpression
    : fromClause whereClause
    {

    }
    | fromClause
    {

    }

fromClause
    : TOK_FROM className
    {
	WQL_TRACE(("YACC: fromClause: TOK_FROM className(%s)\n", $2));
	globalParserState->statement->setClassName(CIMName($2));
    }

whereClause 
    : TOK_WHERE searchCondition
    {

    }

searchCondition 
    : searchCondition TOK_OR searchCondition
    {
	WQL_TRACE(("YACC: TOK_OR\n"));
	globalParserState->statement->appendOperation(WQL_OR);
    }
    | searchCondition TOK_AND searchCondition
    {
	WQL_TRACE(("YACC: TOK_AND\n"));
	globalParserState->statement->appendOperation(WQL_AND);
    }
    | TOK_NOT searchCondition
    {
	WQL_TRACE(("YACC: TOK_NOT\n"));

	globalParserState->statement->appendOperation(WQL_NOT);
    }
    | '(' searchCondition ')'
    {

    }
    | predicate
    {

    }
    | predicate TOK_IS truthValue
    {
	WQLOperation op = $3 ? WQL_IS_TRUE : WQL_IS_FALSE;
	globalParserState->statement->appendOperation(op);
    }
    | predicate TOK_IS TOK_NOT truthValue
    {
	WQLOperation op = $4 ? WQL_IS_NOT_TRUE : WQL_IS_NOT_FALSE;
	globalParserState->statement->appendOperation(op);
    }

/******************************************************************************/

predicate
    : comparisonPredicate
    {

    }
    | nullPredicate
    {

    }

comparisonPredicate
    : comparisonTerm TOK_LT comparisonTerm 
    {
	WQL_TRACE(("YACC: TOK_LT\n"));
	globalParserState->statement->appendOperation(WQL_LT);
    }
    | comparisonTerm TOK_GT comparisonTerm
    {
	WQL_TRACE(("YACC: TOK_GT\n"));
	globalParserState->statement->appendOperation(WQL_GT);
    }
    | comparisonTerm TOK_LE comparisonTerm
    {
	WQL_TRACE(("YACC: TOK_LE\n"));
	globalParserState->statement->appendOperation(WQL_LE);
    }
    | comparisonTerm TOK_GE comparisonTerm
    {
	WQL_TRACE(("YACC: TOK_GE\n"));
	globalParserState->statement->appendOperation(WQL_GE);
    }
    | comparisonTerm TOK_EQ comparisonTerm
    {
	WQL_TRACE(("YACC: TOK_EQ\n"));
	globalParserState->statement->appendOperation(WQL_EQ);
    }
    | comparisonTerm TOK_NE comparisonTerm
    {
	WQL_TRACE(("YACC: TOK_NE\n"));
	globalParserState->statement->appendOperation(WQL_NE);
    }
    | propertyName TOK_ISA className
    {

    	WQL_TRACE(("YACC: TOK_ISA\n"));
        // ADD statement phrase.
    }

nullPredicate
    : comparisonTerm TOK_IS TOK_NULL
    {
	WQL_TRACE(("YACC: nullPredicate : comparisonTerm IS NULL\n"));
	globalParserState->statement->appendOperation(WQL_IS_NULL);
    }
    | comparisonTerm TOK_IS TOK_NOT TOK_NULL
    {
	WQL_TRACE(("YACC: nullPredicate : comparisonTerm IS NOT NULL\n"));
	globalParserState->statement->appendOperation(WQL_IS_NOT_NULL);
    }

truthValue 
    : TOK_TRUE 
    {
	$$ = 1;
    }
    | TOK_FALSE
    {
	$$ = 0;
    }

propertyName 
    : TOK_IDENTIFIER
    {
	WQL_TRACE(("YACC: propertyName : TOK_IDENTIFIER(%s)\n", $1));
	$$ = $1;
    }

className : TOK_IDENTIFIER
    {
	WQL_TRACE(("YACC: TOK_IDENTIFIER %s\n", $1));
	$$ = $1;
    }

comparisonTerm
    : propertyName
    {
	globalParserState->statement->appendOperand(
	    WQLOperand($1, WQL_PROPERTY_NAME_TAG));
	globalParserState->statement->appendWherePropertyName(CIMName($1));
    }
    | TOK_INTEGER
    {
	globalParserState->statement->appendOperand(
	    WQLOperand($1, WQL_INTEGER_VALUE_TAG));
    }
    | TOK_DOUBLE
    {
	globalParserState->statement->appendOperand(
	    WQLOperand($1, WQL_DOUBLE_VALUE_TAG));
    }
    | TOK_STRING
    {
	globalParserState->statement->appendOperand(
	    WQLOperand($1, WQL_STRING_VALUE_TAG));
    }
    | truthValue
    {
	globalParserState->statement->appendOperand(
	    WQLOperand($1 != 0, WQL_BOOLEAN_VALUE_TAG));
    }

%%