149 lines
4.7 KiB
C++
149 lines
4.7 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: tkpcontx.hxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: hr $ $Date: 2006-06-19 12:05:52 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef ADC_TKPCONTX_HXX
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#define ADC_TKPCONTX_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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#include <tokens/token.hxx>
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class CharacterSource;
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class TkpNullContext;
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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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The three functions
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ReadCharChain()
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PassNewToken()
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FollowUpContext()
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have to be called in this sequence.
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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 CurChar() of io_rText.
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It leaves io_rText.CurChar() 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, it is cut from io_rText.
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If the token is to be parsed further in a different context,
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it is NOT cut from io_rText.
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After this function PassNewToken() has to be called.
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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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If the token is to be parsed further in a different context,
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PassNewToken() returns false, but the token is NOT cut from io_rText.
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@return true, if a token was passed.
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false, if the token was not parsed completely by this context
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or if the token is to be ignored.
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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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class StateMachineContext
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{
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public:
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typedef TextToken::F_CRTOK F_CRTOK;
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virtual ~StateMachineContext() {}
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/// Is used by StmBoundsStatus only.
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virtual void PerformStatusFunction(
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uintt i_nStatusSignal,
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F_CRTOK i_fTokenCreateFunction,
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CharacterSource & io_rText ) = 0;
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};
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class TkpNullContext : public TkpContext
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{
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public:
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~TkpNullContext();
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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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namespace autodoc
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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 AssignDealer(
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TokenDealer & o_rDealer ) = 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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} // namespace autodoc
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#endif
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