| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 |
| sal_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 sal_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 |
| |
| |
| |
