167 lines
5 KiB
C++
167 lines
5 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: wtratree.hxx,v $
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*
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* $Revision: 1.2 $
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*
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* last change: $Author: rt $ $Date: 2005-09-09 14:57:53 $
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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 TX3_WTRATREE_HXX
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#define TX3_WTRATREE_HXX
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// USED
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// Base Classes
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// Components
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// Parameters
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#include <tools/string.hxx>
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const INT16 C_NR_OF_WTT_RESULTS = 5;
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const INT16 C_NR_OF_POSSIBLE_CHARS = 256;
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typedef unsigned char u_char;
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typedef const char * constr;
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class WTT_Node;
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/** @task
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This class implements the functionality, that class WordTransformer
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offers.
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WordTransformer is dependant of this class, but NOT the other way!
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**/
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class WordTransTree
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{
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public:
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enum E_Result
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{
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OK = 0,
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HOTKEY_LOST,
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OUTPUT_OVERFLOW
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};
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// LIFECYCLE
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WordTransTree(
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CharSet i_nWorkingCharSet = RTL_TEXTENCODING_MS_1252);
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void SetCharSet(
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CharSet i_nWorkingCharSet);
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~WordTransTree();
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void AddWordPair(
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const ByteString & i_sOldString,
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const ByteString & i_sReplaceString );
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// OPERATIONS
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void InitTransformation(
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const char * i_sInput, /// [!=0], a range of i_nInputLength must be valid memory for read.
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UINT32 i_nInputLength,
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UINT32 i_nOutputMaxLength = STRING_MAXLEN - 12 );
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E_Result TransformNextToken();
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// INQUIRY
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BOOL TextEndReached() const;
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const char * Output() const;
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// These 3 functions are valid between two calls of
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// TransformNextToken():
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E_Result CurResult() const;
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ByteString CurReplacedString() const;
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ByteString CurReplacingString() const;
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char CurHotkey() const;
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private:
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// SERVICE FUNCTONS
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UINT8 CalculateBranch(
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u_char i_cInputChar ) const;
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void Handle_Hotkey();
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void Handle_TokenToKeep();
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void Handle_TokenToTransform();
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// DATA
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// Fixed data
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const u_char * sInput;
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UINT32 nInputLength;
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const u_char * pInputEnd;
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u_char * sOutput; // DYN
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UINT32 nOutputMaxLength;
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WTT_Node * dpParsingTreeTop; // DYN
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WTT_Node * pUnknownAlpha;
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u_char cChar2Branch[C_NR_OF_POSSIBLE_CHARS];
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u_char c_AE, c_OE, c_UE, c_ae, c_oe, c_ue;
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// Working data
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const u_char * pInputCurTokenStart;
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const u_char * pInputPosition;
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u_char * pOutputPosition;
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WTT_Node * pCurParseNode;
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// Data which are valid only after a completed call to TransformNextToken()
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E_Result eCurResult;
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u_char cCurHotkey; // Letter wich is used as hotkey
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u_char cCurHotkeySign; // Letter which is used to assign hotkey ('~'or '&') .
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};
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inline BOOL
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WordTransTree::TextEndReached() const
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{ return pInputPosition == pInputEnd; }
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inline const char *
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WordTransTree::Output() const
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{ return TextEndReached() ? (constr) sOutput : ""; }
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inline WordTransTree::E_Result
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WordTransTree::CurResult() const
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{ return eCurResult; }
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inline ByteString
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WordTransTree::CurReplacedString() const
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{ return ByteString((constr) pInputCurTokenStart,pInputPosition-pInputCurTokenStart); }
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inline char
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WordTransTree::CurHotkey() const
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{ return cCurHotkey; }
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inline UINT8
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WordTransTree::CalculateBranch(u_char i_cInputChar) const
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{ return cChar2Branch[i_cInputChar]; }
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#endif
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