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/*************************************************************************
*
* $RCSfile: tkpstama.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_TKPSTAMA_HXX
#define ADC_TKPSTAMA_HXX
// USED SERVICES
// BASE CLASSES
#include <tokens/tkpcontx.hxx>
// COMPONENTS
#include <tokens/stmstarr.hxx>
#include <tokens/stmstfin.hxx>
/** @descr
This state-machine models state transitions from one state to another
per indices of branches. If the indices represent ascii-char-values,
the state-machine can be used for recognising tokens of text.
The state-machine can be a status itself.
StateMachine needs the array-size of all stati as a guess, how many stati
the state machine will contain, when at work.
**/
class StateMachine
{
public:
// Types
typedef StmStatus::Branch Branch;
typedef StmStatus * * StatusList;
//# Interface self
// LIFECYCLE
StateMachine(
intt in_nStatusSize,
intt in_nInitial_StatusListSize ); /// The user of the constructor should guess
/// the approximate number of stati here to
/// avoid multiple reallocations.
/// @#AddStatus
intt AddStatus( /// @return the new #Status' ID
DYN StmStatus * let_dpStatus);
/// @#AddToken
void AddToken(
const char * in_sToken,
TextToken::F_CRTOK in_fTokenCreateFunction,
const INT16 * in_aBranches,
INT16 in_nBoundsStatus );
~StateMachine();
// FOR TESTS ONLY:
void PrintOut();
// OPERATIONS
StmBoundsStatus &
GetCharChain(
TextToken::F_CRTOK &
o_nTokenCreateFunction,
CharacterSource & io_rText );
private:
// SERVICE FUNCTIONS
StmStatus & Status(
intt in_nStatusNr) const;
StmArrayStatus &
CurrentStatus() const;
StmBoundsStatus *
BoundsStatus() const;
/// Sets the PeekedStatus.
void Peek(
intt in_nBranch);
void ResizeStati(); // Adds space for 32 stati.
// DATA
StatusList pStati; /// List of Status, implemented as simple C-array of length #nStatiSpace
/// with nStatiLength valid members (beginning from zero).
intt nCurrentStatus;
intt nPeekedStatus;
intt nStatusSize; /// Size of the branch array of a single status.
intt nNrofStati; /// Nr of Stati so far.
intt nStatiSpace; /// Size of allocated array for #pStati (size in items).
};
/** @#AddToken
@descr
Adds a token, which will be recogniszeds by the
statemachine.
**/
#endif
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