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/*************************************************************************
*
* $RCSfile: tkpcontx.hxx,v $
*
* $Revision: 1.1.1.1 $
*
* last change: $Author: np $ $Date: 2002-03-08 14:45:33 $
*
* 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 ADC_TKPCONTX_HXX
#define ADC_TKPCONTX_HXX
// USED SERVICES
// BASE CLASSES
// COMPONENTS
// PARAMETERS
#include <tokens/token.hxx>
class CharacterSource;
class TkpNullContext;
/** @task
Specifies a context within which tokens are interpreted in a special
way. For example in parsing C++ there could be a context for code,
one for comments and a third one for preprocessor statements, because
each of these would give the same token different meanings.
The three functions
ReadCharChain()
PassNewToken()
FollowUpContext()
have to be called in this sequence.
**/
class TkpContext
{
public:
// LIFECYCLE
virtual ~TkpContext() {}
// OPERATIONS
/** @descr
The functions starts to parse with the CurChar() of io_rText.
It leaves io_rText.CurChar() at the first char of the following Token or
the following Context.
This function returns, when a context has parsed some characterss
and completed a token OR left the context.
If the token is to be ignored, it is cut from io_rText.
If the token is to be parsed further in a different context,
it is NOT cut from io_rText.
After this function PassNewToken() has to be called.
If the function has found a valid and complete token, PassNewToken()
passes the parsed token to the internally known receiver and
returns true. The token is cut from io_rText.
**/
virtual void ReadCharChain(
CharacterSource & io_rText ) = 0;
/** Has to pass the parsed token to a known receiver.
If the token is to be parsed further in a different context,
PassNewToken() returns false, but the token is NOT cut from io_rText.
@return true, if a token was passed.
false, if the token was not parsed completely by this context
or if the token is to be ignored.
*/
virtual bool PassNewToken() = 0;
virtual TkpContext &
FollowUpContext() = 0;
static TkpNullContext &
Null_();
};
class StateMachineContext
{
public:
typedef TextToken::F_CRTOK F_CRTOK;
/// Is used by StmBoundsStatus only.
virtual void PerformStatusFunction(
uintt i_nStatusSignal,
F_CRTOK i_fTokenCreateFunction,
CharacterSource & io_rText ) = 0;
};
class TkpNullContext : public TkpContext
{
public:
~TkpNullContext();
virtual void ReadCharChain(
CharacterSource & io_rText );
virtual bool PassNewToken();
virtual TkpContext &
FollowUpContext();
};
namespace autodoc
{
class TkpDocuContext : public TkpContext
{
public:
virtual void SetParentContext(
TkpContext & io_rParentContext,
const char * i_sMultiLineEndToken ) = 0;
virtual void AssignDealer(
TokenDealer & o_rDealer ) = 0;
virtual void SetMode_IsMultiLine(
bool i_bTrue ) = 0;
};
} // namespace autodoc
#endif
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