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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef ADC_TKPCONT2_HXX
#define ADC_TKPCONT2_HXX
// USED SERVICES
// BASE CLASSES
// COMPONENTS
// PARAMETERS
class CharacterSource;
class TkpNullContext;
class TkpNullContex2;
/** @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.
**/
class TkpContext
{
public:
// LIFECYCLE
virtual ~TkpContext() {}
// OPERATIONS
/** @descr
The functions starts to parse with the CurToken() of io_rText.
It leaves io_rText 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, PassNewToken() returns false
and cuts the token from io_rText.
If the token is to be parsed further in a different context,
PassNewToken() returns false, but the token is
NOT cut from io_rText.
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.
@return true, if a token was passed.
false, if no token was parsed complete by this context.
*/
virtual bool PassNewToken() = 0;
virtual TkpContext &
FollowUpContext() = 0;
static TkpNullContext &
Null_();
};
TkpNullContex2 & TkpContext_Null2_();
class StateMachineContext
{
public:
virtual ~StateMachineContext() {}
/// Is used by StmBoundsStatu2 only.
virtual void PerformStatusFunction(
uintt i_nStatusSignal,
UINT16 i_nTokenId,
CharacterSource & io_rText ) = 0;
};
class TkpNullContex2 : public TkpContext
{
public:
~TkpNullContex2();
virtual void ReadCharChain(
CharacterSource & io_rText );
virtual bool PassNewToken();
virtual TkpContext &
FollowUpContext();
};
class TkpDocuContext : public TkpContext
{
public:
virtual void SetParentContext(
TkpContext & io_rParentContext,
const char * i_sMultiLineEndToken ) = 0;
virtual void SetMode_IsMultiLine(
bool i_bTrue ) = 0;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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