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/*************************************************************************
*
* $RCSfile: sqlparse.hxx,v $
*
* $Revision: 1.14 $
*
* last change: $Author: hr $ $Date: 2003-03-19 16:38:12 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _CONNECTIVITY_SQLPARSE_HXX
#define _CONNECTIVITY_SQLPARSE_HXX
#ifndef _COM_SUN_STAR_UNO_REFERENCE_H_
#include <com/sun/star/uno/Reference.h>
#endif
#ifndef _OSL_MUTEX_HXX_ //autogen wg. Mutex
#include <osl/mutex.hxx>
#endif
#ifndef _CONNECTIVITY_SQLNODE_HXX
#include <connectivity/sqlnode.hxx>
#endif
#ifndef YYBISON
#ifndef FLEX_SCANNER
#ifndef BISON_INCLUDED
#define BISON_INCLUDED
#include <sqlbison.hxx>
#endif
#endif
#endif
#ifndef _COM_SUN_STAR_I18N_XCHARACTERCLASSIFICATION_HPP_
#include <com/sun/star/i18n/XCharacterClassification.hpp>
#endif
#ifndef _COM_SUN_STAR_LANG_XMULTISERVICEFACTORY_HPP_
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#endif
#ifndef _COM_SUN_STAR_I18N_XLOCALEDATA_HPP_
#include <com/sun/star/i18n/XLocaleData.hpp>
#endif
#ifndef CONNECTIVITY_IPARSECONTEXT_HXX
#include "connectivity/IParseContext.hxx"
#endif
// forward declarations
namespace com
{
namespace sun
{
namespace star
{
namespace beans
{
class XPropertySet;
}
namespace util
{
class XNumberFormatter;
}
namespace lang
{
struct Locale;
}
}
}
}
namespace connectivity
{
class OSQLScanner;
//==========================================================================
//= OParseContext
//==========================================================================
class OParseContext : public IParseContext
{
public:
OParseContext();
virtual ~OParseContext();
// retrieves language specific error messages
virtual ::rtl::OUString getErrorMessage(ErrorCode _eCodes) const;
// retrieves language specific keyword strings (only ASCII allowed)
virtual ::rtl::OString getIntlKeywordAscii(InternationalKeyCode _eKey) const;
// finds out, if we have an international keyword (only ASCII allowed)
virtual InternationalKeyCode getIntlKeyCode(const ::rtl::OString& rToken) const;
// determines the default international setting
static const ::com::sun::star::lang::Locale& getDefaultLocale();
/** set's the default locale which should be used when analyzing strings
<p>If no locale is set, and any method which needs a locale is called, a default
(en-US) is used.</p>
<p>If, while parsing, the locale can be obtained from other sources (such as the number format
set for a table column), the preferred locale is ignored.</p>
*/
static void setDefaultLocale( const ::com::sun::star::lang::Locale& _rLocale );
/** get's a locale instance which should be used when parsing in the context specified by this instance
<p>if this is not overridden by derived classes, it returns the static default locale.</p>
*/
virtual ::com::sun::star::lang::Locale getPreferredLocale( ) const;
};
//==========================================================================
//= OSQLParser
//==========================================================================
/** Parser for SQL92
*/
class OSQLParser
{
friend class OSQLParseNode;
friend class OSQLInternalNode;
friend struct OSQLParseNode::SQLParseNodeParameter;
private:
// static parts for parsers
static sal_uInt32 s_nRuleIDs[OSQLParseNode::rule_count + 1];
static OParseContext s_aDefaultContext;
// parts controled by mutex
// static ::osl::Mutex s_aMutex;
static OSQLScanner* s_pScanner;
static OSQLParseNodes* s_pGarbageCollector;
static sal_Int32 s_nRefCount;
// informations on the current parse action
const IParseContext* m_pContext;
OSQLParseNode* m_pParseTree; // result from parsing
::com::sun::star::lang::Locale* m_pLocale; // current locale settings for parsing
::rtl::OUString m_sFieldName; // current field name for a predicate
::rtl::OUString m_sErrorMessage;// current error msg
::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >
m_xField; // current field
::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatter >
m_xFormatter; // current number formatter
sal_Int32 m_nFormatKey; // numberformat, which should be used
::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > m_xServiceFactory;
::com::sun::star::uno::Reference< ::com::sun::star::i18n::XCharacterClassification> m_xCharClass;
static ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XLocaleData> s_xLocaleData;
::com::sun::star::uno::Reference< ::com::sun::star::i18n::XLocaleData> xDummy; // can be deleted after 627
// convert a string into double trim it to scale of _nscale and than transform it back to string
::rtl::OUString stringToDouble(const ::rtl::OUString& _rValue,sal_Int16 _nScale);
static ::osl::Mutex& getMutex();
public:
// if NULL, a default context will be used
// the context must live as long as the parser
OSQLParser(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& _xServiceFactory,const IParseContext* _pContext = NULL);
~OSQLParser();
// Parsing an SQLStatement
OSQLParseNode* parseTree(::rtl::OUString& rErrorMessage,
const ::rtl::OUString& rStatement,
sal_Bool bInternational = sal_False);
// Check a Predicate
OSQLParseNode* predicateTree(::rtl::OUString& rErrorMessage, const ::rtl::OUString& rStatement,
const ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatter > & xFormatter,
const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet > & xField);
// Access to the context
const IParseContext& getContext() const {return *m_pContext;}
// TokenIDToStr: Token-Name zu einer Token-Nr.
static ::rtl::OString TokenIDToStr(sal_uInt32 nTokenID, const IParseContext* pContext = NULL);
// StrToTokenID: Token-Nr. zu einem Token-Namen.
// static sal_uInt32 StrToTokenID(const ::rtl::OString & rName);
// RuleIDToStr gibt den zu einer RuleID gehoerenden ::rtl::OUString zurueck
// (Leerstring, falls nicht gefunden)
static ::rtl::OUString RuleIDToStr(sal_uInt32 nRuleID);
// StrToRuleID berechnet zu einem ::rtl::OUString die RuleID (d.h. ::com::sun::star::sdbcx::Index in yytname)
// (0, falls nicht gefunden). Die Suche nach der ID aufgrund eines Strings ist
// extrem ineffizient (sequentielle Suche nach ::rtl::OUString)!
static sal_uInt32 StrToRuleID(const ::rtl::OString & rValue);
// RuleId mit enum, wesentlich effizienter
static sal_uInt32 RuleID(OSQLParseNode::Rule eRule);
// compares the _sFunctionName with all known function names and return the DataType of the return value
static sal_Int32 getFunctionReturnType(const ::rtl::OUString& _sFunctionName, const IParseContext* pContext = NULL);
void error(sal_Char *fmt);
int SQLlex();
#ifdef YYBISON
void setParseTree(OSQLParseNode * pNewParseTree);
// Is the parse in a special mode?
// Predicate chack is used to check a condition for a field
sal_Bool inPredicateCheck() const {return m_xField.is();}
const ::rtl::OUString& getFieldName() const {return m_sFieldName;}
void reduceLiteral(OSQLParseNode*& pLiteral, sal_Bool bAppendBlank);
// does not change the pLiteral argument
sal_Int16 buildNode(OSQLParseNode*& pAppend,OSQLParseNode* pLiteral,OSQLParseNode*& pCompare);
// makes a string out of a number, pLiteral will be deleted
sal_Int16 buildNode_STR_NUM(OSQLParseNode*& pAppend,OSQLParseNode*& pLiteral,OSQLParseNode*& pCompare);
sal_Int16 buildNode_Date(const double& fValue, sal_Int16 nType, OSQLParseNode*& pAppend,OSQLParseNode* pLiteral,OSQLParseNode*& pCompare);
sal_Int16 buildComparsionRule(OSQLParseNode*& pAppend,OSQLParseNode* pLiteral);
// pCompre will be deleted if it is not used
sal_Int16 buildComparsionRule(OSQLParseNode*& pAppend,OSQLParseNode* pLiteral,OSQLParseNode*& pCompare);
sal_Int16 buildLikeRule(OSQLParseNode*& pAppend,OSQLParseNode*& pLiteral,const OSQLParseNode* pEscape);
sal_Int16 buildStringNodes(OSQLParseNode*& pLiteral);
#else
#endif
};
}
#endif //_CONNECTIVITY_SQLPARSE_HXX
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