version 1.1.2.1, 2001/11/30 02:53:56
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version 1.10, 2008/12/01 17:51:20
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//%LICENSE//////////////////////////////////////////////////////////////// |
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// |
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// Licensed to The Open Group (TOG) under one or more contributor license |
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// agreements. Refer to the OpenPegasusNOTICE.txt file distributed with |
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// this work for additional information regarding copyright ownership. |
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// Each contributor licenses this file to you under the OpenPegasus Open |
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// Source License; you may not use this file except in compliance with the |
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// License. |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a |
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// copy of this software and associated documentation files (the "Software"), |
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// to deal in the Software without restriction, including without limitation |
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// the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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// and/or sell copies of the Software, and to permit persons to whom the |
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// Software is furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included |
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// in all copies or substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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// |
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////////////////////////////////////////////////////////////////////////// |
/* | /* |
**============================================================================== | **============================================================================== |
** | ** |
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%{ | %{ |
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#include <Pegasus/Common/Config.h> |
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#include <Pegasus/WQL/WQLOperation.h> |
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#include <Pegasus/WQL/WQLOperand.h> |
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#include <Pegasus/WQL/WQLParserState.h> |
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#include <Pegasus/WQL/WQLSelectStatement.h> |
#include <string.h> | #include <string.h> |
#include <stdlib.h> | #include <stdlib.h> |
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# include <alloca.h> | # include <alloca.h> |
#endif | #endif |
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#if 0 |
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# define WQL_TRACE(X) printf X |
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#else |
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# define WQL_TRACE(X) |
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#endif |
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extern int WQL_lex(); | extern int WQL_lex(); |
extern int WQL_error(char*); |
extern int WQL_error(const char*); |
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// |
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// Define the global parser state object: |
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// |
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PEGASUS_USING_PEGASUS; |
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PEGASUS_NAMESPACE_BEGIN |
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extern WQLParserState* globalParserState; |
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PEGASUS_NAMESPACE_END |
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%} | %} |
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%token <intValue> TOK_INTEGER | %token <intValue> TOK_INTEGER |
%token <doubleValue> TOK_DOUBLE | %token <doubleValue> TOK_DOUBLE |
%token <strValue> STRING_LITERAL |
%token <strValue> TOK_STRING |
%token <intValue> EQ |
%token <intValue> TOK_TRUE |
%token <intValue> NE |
%token <intValue> TOK_FALSE |
%token <intValue> LT |
%token <intValue> TOK_NULL |
%token <intValue> LE |
%token <intValue> TOK_ISA |
%token <intValue> GT |
%token <intValue> TOK_DOT |
%token <intValue> GE |
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%token <intValue> TOK_SELECT |
%token <intValue> TOK_EQ |
%token <intValue> WHERE |
%token <intValue> TOK_NE |
%token <intValue> FROM |
%token <intValue> TOK_LT |
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%token <intValue> TOK_LE |
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%token <intValue> TOK_GT |
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%token <intValue> TOK_GE |
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%token <intValue> TOK_NOT |
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%token <intValue> TOK_OR |
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%token <intValue> TOK_AND |
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%token <intValue> TOK_IS |
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%token <strValue> TOK_IDENTIFIER | %token <strValue> TOK_IDENTIFIER |
%token <intValue> NOT |
%token <intValue> TOK_SELECT |
%token <intValue> OR |
%token <intValue> TOK_WHERE |
%token <intValue> AND |
%token <intValue> TOK_FROM |
%token <intValue> ISA |
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%token <intValue> WQL_TRUE |
%token <intValue> TOK_UNEXPECTED_CHAR |
%token <intValue> WQL_FALSE |
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%type <strValue> propertyName |
%type <nodeValue> constant |
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%type <nodeValue> property |
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%type <nodeValue> propertyListOrStar |
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%type <nodeValue> propertyList | %type <nodeValue> propertyList |
%type <nodeValue> expressionTerm |
%type <nodeValue> predicate |
%type <nodeValue> expression |
%type <nodeValue> comparisonPredicate |
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// %type <nodeValue> comparisonTerm |
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%type <nodeValue> nullPredicate |
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%type <nodeValue> searchCondition |
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%type <nodeValue> fromClause |
%type <nodeValue> whereClause | %type <nodeValue> whereClause |
%type <strValue> fromClass |
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%type <nodeValue> selectStatement | %type <nodeValue> selectStatement |
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%type <nodeValue> selectList |
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%type <nodeValue> selectExpression |
%type <strValue> className | %type <strValue> className |
%type <nodeValue> function |
%type <intValue> truthValue |
%type <nodeValue> functionParameterList |
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%type <nodeValue> functionParameter |
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%left OR |
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%left AND |
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%nonassoc NOT |
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/* |
%left TOK_OR |
**============================================================================== |
%left TOK_AND |
** |
%nonassoc TOK_NOT |
** The grammar itself. |
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** |
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**============================================================================== |
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*/ |
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%% | %% |
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/* | /* |
**------------------------------------------------------------------------------ |
**============================================================================== |
** | ** |
** start rule: |
** The grammar itself. |
** | ** |
**------------------------------------------------------------------------------ |
**============================================================================== |
*/ | */ |
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start | start |
: selectStatement | : selectStatement |
{ | { |
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WQL_TRACE(("YACC: start\n")); |
} | } |
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/* BOOKMARK */ |
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/* |
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**------------------------------------------------------------------------------ |
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** |
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** Select Statement |
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** |
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**------------------------------------------------------------------------------ |
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*/ |
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selectStatement | selectStatement |
: TOK_SELECT propertyListOrStar fromClass |
: TOK_SELECT selectList selectExpression |
{ |
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} |
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| TOK_SELECT propertyListOrStar fromClass whereClause |
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{ | { |
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} | } |
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fromClass : FROM className |
selectList |
{ |
: '*' |
$$ = $2; |
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} |
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className : TOK_IDENTIFIER |
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{ | { |
$$ = $1 |
globalParserState->statement->setAllProperties(true); |
} | } |
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| propertyList |
whereClause : WHERE expression |
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{ | { |
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} | } |
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propertyListOrStar |
propertyList |
: propertyList |
: propertyName |
{ | { |
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globalParserState->statement->appendSelectPropertyName(CIMName($1)); |
} | } |
| '*' |
| propertyList ',' propertyName |
{ | { |
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globalParserState->statement->appendSelectPropertyName(CIMName($3)); |
} | } |
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propertyList : property |
selectExpression |
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: fromClause whereClause |
{ | { |
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} | } |
| propertyList ',' property |
| fromClause |
{ | { |
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} | } |
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property |
fromClause |
: TOK_IDENTIFIER |
: TOK_FROM className |
{ | { |
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WQL_TRACE(("YACC: fromClause: TOK_FROM className(%s)\n", $2)); |
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globalParserState->statement->setClassName(CIMName($2)); |
} | } |
| TOK_IDENTIFIER '.' TOK_IDENTIFIER |
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{ |
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} |
whereClause |
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: TOK_WHERE searchCondition |
expression |
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: expression OR expression |
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{ | { |
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} | } |
| expression AND expression |
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{ |
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} |
searchCondition |
| NOT expression |
: searchCondition TOK_OR searchCondition |
{ | { |
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WQL_TRACE(("YACC: TOK_OR\n")); |
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globalParserState->statement->appendOperation(WQL_OR); |
} | } |
| '(' expression ')' |
| searchCondition TOK_AND searchCondition |
{ | { |
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WQL_TRACE(("YACC: TOK_AND\n")); |
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globalParserState->statement->appendOperation(WQL_AND); |
} | } |
| expressionTerm |
| TOK_NOT searchCondition |
{ | { |
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WQL_TRACE(("YACC: TOK_NOT\n")); |
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globalParserState->statement->appendOperation(WQL_NOT); |
} | } |
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| '(' searchCondition ')' |
expressionTerm |
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: property LT constant |
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{ | { |
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} | } |
| property GT constant |
| predicate |
{ | { |
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} | } |
| property LE constant |
| predicate TOK_IS truthValue |
{ | { |
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WQLOperation op = $3 ? WQL_IS_TRUE : WQL_IS_FALSE; |
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globalParserState->statement->appendOperation(op); |
} | } |
| property GE constant |
| predicate TOK_IS TOK_NOT truthValue |
{ | { |
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WQLOperation op = $4 ? WQL_IS_NOT_TRUE : WQL_IS_NOT_FALSE; |
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globalParserState->statement->appendOperation(op); |
} | } |
| property EQ constant |
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{ |
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} |
/******************************************************************************/ |
| property NE constant |
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{ |
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} |
predicate |
| constant LT property |
: comparisonPredicate |
{ | { |
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} | } |
| constant GT property |
| nullPredicate |
{ | { |
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} | } |
| constant LE property |
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{ |
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} |
comparisonPredicate |
| constant GE property |
: comparisonTerm TOK_LT comparisonTerm |
{ | { |
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WQL_TRACE(("YACC: TOK_LT\n")); |
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globalParserState->statement->appendOperation(WQL_LT); |
} | } |
| constant EQ property |
| comparisonTerm TOK_GT comparisonTerm |
{ | { |
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WQL_TRACE(("YACC: TOK_GT\n")); |
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globalParserState->statement->appendOperation(WQL_GT); |
} | } |
| constant NE property |
| comparisonTerm TOK_LE comparisonTerm |
{ | { |
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WQL_TRACE(("YACC: TOK_LE\n")); |
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globalParserState->statement->appendOperation(WQL_LE); |
} | } |
| function LT constant |
| comparisonTerm TOK_GE comparisonTerm |
{ | { |
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WQL_TRACE(("YACC: TOK_GE\n")); |
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globalParserState->statement->appendOperation(WQL_GE); |
} | } |
| function GT constant |
| comparisonTerm TOK_EQ comparisonTerm |
{ | { |
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WQL_TRACE(("YACC: TOK_EQ\n")); |
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globalParserState->statement->appendOperation(WQL_EQ); |
} | } |
| function LE constant |
| comparisonTerm TOK_NE comparisonTerm |
{ | { |
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WQL_TRACE(("YACC: TOK_NE\n")); |
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globalParserState->statement->appendOperation(WQL_NE); |
} | } |
| function GE constant |
| propertyName TOK_ISA className |
{ | { |
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WQL_TRACE(("YACC: TOK_ISA\n")); |
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#ifndef PEGASUS_SNIA_EXTENSIONS |
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// If SNIA tests, allow the ISA but do not pass className |
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yyerror("ISA Token Not Supported"); |
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#endif |
} | } |
| function EQ constant |
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{ |
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} |
nullPredicate |
| function NE constant |
: comparisonTerm TOK_IS TOK_NULL |
{ | { |
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WQL_TRACE(("YACC: nullPredicate : comparisonTerm IS NULL\n")); |
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globalParserState->statement->appendOperation(WQL_IS_NULL); |
} | } |
| constant LT function |
| comparisonTerm TOK_IS TOK_NOT TOK_NULL |
{ | { |
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WQL_TRACE(("YACC: nullPredicate : comparisonTerm IS NOT NULL\n")); |
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globalParserState->statement->appendOperation(WQL_IS_NOT_NULL); |
} | } |
| constant GT function |
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{ |
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} |
truthValue |
| constant LE function |
: TOK_TRUE |
{ | { |
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$$ = 1; |
} | } |
| constant GE function |
| TOK_FALSE |
{ | { |
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$$ = 0; |
} | } |
| constant EQ function |
/************** |
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propertyName |
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: TOK_IDENTIFIER |
{ | { |
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WQL_TRACE(("YACC: propertyName : TOK_IDENTIFIER(%s)\n", $1)); |
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$$ = $1; |
} | } |
| constant NE function |
*****************/ |
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propertyName |
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: TOK_IDENTIFIER |
{ | { |
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WQL_TRACE(("YACC: propertyName : TOK_IDENTIFIER(%s)\n", $1)); |
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$$ = $1; |
} | } |
| className ISA className |
| TOK_IDENTIFIER TOK_DOT TOK_IDENTIFIER |
{ | { |
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WQL_TRACE(("YACC: propertyName : TOK_IDENTIFIER(%s.%s)\n", $1, $3)); |
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#ifdef PEGASUS_SNIA_EXTENSIONS |
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// Pass anything as a property name to fool parser for SNIA testing |
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$$ = strdup("dummy"); |
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#else |
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yyerror("Scoped (dotted) property names not supported"); |
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#endif |
} | } |
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function |
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: TOK_IDENTIFIER '(' ')' |
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{ |
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} |
className : TOK_IDENTIFIER |
| TOK_IDENTIFIER '(' functionParameterList ')' |
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{ | { |
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WQL_TRACE(("YACC: TOK_IDENTIFIER %s\n", $1)); |
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$$ = $1; |
} | } |
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functionParameterList |
comparisonTerm |
: functionParameter |
: propertyName |
{ | { |
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globalParserState->statement->appendOperand( |
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WQLOperand($1, WQL_PROPERTY_NAME_TAG)); |
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globalParserState->statement->appendWherePropertyName(CIMName($1)); |
} | } |
| functionParameterList ',' functionParameter |
| TOK_INTEGER |
{ | { |
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globalParserState->statement->appendOperand( |
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WQLOperand($1, WQL_INTEGER_VALUE_TAG)); |
} | } |
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| TOK_DOUBLE |
functionParameter |
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: property |
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| constant |
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| function |
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; |
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constant |
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: TOK_INTEGER |
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{ | { |
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globalParserState->statement->appendOperand( |
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WQLOperand($1, WQL_DOUBLE_VALUE_TAG)); |
} | } |
| TOK_DOUBLE |
| TOK_STRING |
{ | { |
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globalParserState->statement->appendOperand( |
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WQLOperand($1, WQL_STRING_VALUE_TAG)); |
} | } |
| STRING_LITERAL |
| truthValue |
{ | { |
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globalParserState->statement->appendOperand( |
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WQLOperand($1 != 0, WQL_BOOLEAN_VALUE_TAG)); |
} | } |
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%% | %% |
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int WQL_error(char* errorMessage) |
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{ |
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fprintf(stderr, "WQL_error: %s\n", errorMessage); |
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return -1; |
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} |
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