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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef TX3_WTRATREE_HXX
#define TX3_WTRATREE_HXX
// USED
// Base Classes
// Components
// Parameters
#include <tools/string.hxx>
const INT16 C_NR_OF_WTT_RESULTS = 5;
const INT16 C_NR_OF_POSSIBLE_CHARS = 256;
typedef unsigned char u_char;
typedef const char * constr;
class WTT_Node;
/** @task
This class implements the functionality, that class WordTransformer
offers.
WordTransformer is dependant of this class, but NOT the other way!
**/
class WordTransTree
{
public:
enum E_Result
{
OK = 0,
HOTKEY_LOST,
OUTPUT_OVERFLOW
};
// LIFECYCLE
WordTransTree(
CharSet i_nWorkingCharSet = RTL_TEXTENCODING_MS_1252);
void SetCharSet(
CharSet i_nWorkingCharSet);
~WordTransTree();
void AddWordPair(
const ByteString & i_sOldString,
const ByteString & i_sReplaceString );
// OPERATIONS
void InitTransformation(
const char * i_sInput, /// [!=0], a range of i_nInputLength must be valid memory for read.
UINT32 i_nInputLength,
UINT32 i_nOutputMaxLength = STRING_MAXLEN - 12 );
E_Result TransformNextToken();
// INQUIRY
BOOL TextEndReached() const;
const char * Output() const;
// These 3 functions are valid between two calls of
// TransformNextToken():
E_Result CurResult() const;
ByteString CurReplacedString() const;
ByteString CurReplacingString() const;
char CurHotkey() const;
private:
// SERVICE FUNCTONS
UINT8 CalculateBranch(
u_char i_cInputChar ) const;
void Handle_Hotkey();
void Handle_TokenToKeep();
void Handle_TokenToTransform();
// DATA
// Fixed data
const u_char * sInput;
UINT32 nInputLength;
const u_char * pInputEnd;
u_char * sOutput; // DYN
UINT32 nOutputMaxLength;
WTT_Node * dpParsingTreeTop; // DYN
WTT_Node * pUnknownAlpha;
u_char cChar2Branch[C_NR_OF_POSSIBLE_CHARS];
u_char c_AE, c_OE, c_UE, c_ae, c_oe, c_ue;
// Working data
const u_char * pInputCurTokenStart;
const u_char * pInputPosition;
u_char * pOutputPosition;
WTT_Node * pCurParseNode;
// Data which are valid only after a completed call to TransformNextToken()
E_Result eCurResult;
u_char cCurHotkey; // Letter wich is used as hotkey
u_char cCurHotkeySign; // Letter which is used to assign hotkey ('~'or '&') .
};
inline BOOL
WordTransTree::TextEndReached() const
{ return pInputPosition == pInputEnd; }
inline const char *
WordTransTree::Output() const
{ return TextEndReached() ? (constr) sOutput : ""; }
inline WordTransTree::E_Result
WordTransTree::CurResult() const
{ return eCurResult; }
inline ByteString
WordTransTree::CurReplacedString() const
{ return ByteString((constr) pInputCurTokenStart,pInputPosition-pInputCurTokenStart); }
inline char
WordTransTree::CurHotkey() const
{ return cCurHotkey; }
inline UINT8
WordTransTree::CalculateBranch(u_char i_cInputChar) const
{ return cChar2Branch[i_cInputChar]; }
#endif
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