117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef ADC_TKPCONT2_HXX
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#define ADC_TKPCONT2_HXX
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// USED SERVICES
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// BASE CLASSES
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// COMPONENTS
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// PARAMETERS
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class CharacterSource;
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class TkpNullContext;
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class TkpNullContex2;
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/** @task
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Specifies a context within which tokens are interpreted in a special
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way. For example in parsing C++ there could be a context for code,
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one for comments and a third one for preprocessor statements, because
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each of these would give the same token different meanings.
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**/
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class TkpContext
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{
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public:
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// LIFECYCLE
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virtual ~TkpContext() {}
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// OPERATIONS
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/** @descr
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The functions starts to parse with the CurToken() of io_rText.
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It leaves io_rText at the first char of the following Token or
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the following Context.
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This function returns, when a context has parsed some characterss
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and completed a token OR left the context.
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If the token is to be ignored, PassNewToken() returns false
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and cuts the token from io_rText.
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If the token is to be parsed further in a different context,
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PassNewToken() returns false, but the token is
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NOT cut from io_rText.
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If the function has found a valid and complete token, PassNewToken()
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passes the parsed token to the internally known receiver and
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returns true. The token is cut from io_rText.
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**/
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virtual void ReadCharChain(
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CharacterSource & io_rText ) = 0;
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/** Has to pass the parsed token to a known receiver.
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@return true, if a token was passed.
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false, if no token was parsed complete by this context.
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*/
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virtual bool PassNewToken() = 0;
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virtual TkpContext &
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FollowUpContext() = 0;
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static TkpNullContext &
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Null_();
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};
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TkpNullContex2 & TkpContext_Null2_();
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class StateMachineContext
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{
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public:
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virtual ~StateMachineContext() {}
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/// Is used by StmBoundsStatu2 only.
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virtual void PerformStatusFunction(
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uintt i_nStatusSignal,
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UINT16 i_nTokenId,
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CharacterSource & io_rText ) = 0;
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};
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class TkpNullContex2 : public TkpContext
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{
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public:
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~TkpNullContex2();
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virtual void ReadCharChain(
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CharacterSource & io_rText );
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virtual bool PassNewToken();
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virtual TkpContext &
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FollowUpContext();
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};
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class TkpDocuContext : public TkpContext
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{
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public:
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virtual void SetParentContext(
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TkpContext & io_rParentContext,
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const char * i_sMultiLineEndToken ) = 0;
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virtual void SetMode_IsMultiLine(
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bool i_bTrue ) = 0;
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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