mirror of
https://bitbucket.org/smil3y/kdelibs.git
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116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* -*- C++ -*-
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* Copyright (C) 1998 <developer@mozilla.org>
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*
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef nsCodingStateMachine_h__
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#define nsCodingStateMachine_h__
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#include "kencodingprober.h"
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#include "kdemacros.h"
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#include "nsPkgInt.h"
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namespace kencodingprober {
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typedef enum {
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eStart = 0,
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eError = 1,
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eItsMe = 2
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} nsSMState;
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#define GETCLASS(c) GETFROMPCK(((unsigned char)(c)), mModel->classTable)
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//state machine model
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typedef struct
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{
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nsPkgInt classTable;
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unsigned int classFactor;
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nsPkgInt stateTable;
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const unsigned int* charLenTable;
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const char* name;
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} SMModel;
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class KDE_NO_EXPORT nsCodingStateMachine {
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public:
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nsCodingStateMachine(SMModel* sm){
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mCurrentState = eStart;
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mModel = sm;
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};
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nsSMState NextState(char c){
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//for each byte we get its class KDE_NO_EXPORT , if it is first byte, we also get byte length
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unsigned int byteCls = GETCLASS(c);
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if (mCurrentState == eStart)
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{
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mCurrentBytePos = 0;
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mCurrentCharLen = mModel->charLenTable[byteCls];
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}
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//from byte's class KDE_NO_EXPORT and stateTable, we get its next state
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mCurrentState=(nsSMState)GETFROMPCK(mCurrentState*(mModel->classFactor)+byteCls,
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mModel->stateTable);
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mCurrentBytePos++;
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return mCurrentState;
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};
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unsigned int GetCurrentCharLen(void) {return mCurrentCharLen;};
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void Reset(void) {mCurrentState = eStart;};
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const char * GetCodingStateMachine() {return mModel->name;};
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#ifdef DEBUG_PROBE
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const char * DumpCurrentState(){
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switch (mCurrentState) {
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case eStart:
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return "eStart";
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case eError:
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return "eError";
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case eItsMe:
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return "eItsMe";
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default:
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return "OK";
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}
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}
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#endif
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protected:
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nsSMState mCurrentState;
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unsigned int mCurrentCharLen;
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unsigned int mCurrentBytePos;
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SMModel *mModel;
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};
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extern KDE_NO_EXPORT SMModel UTF8SMModel;
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extern KDE_NO_EXPORT SMModel Big5SMModel;
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extern KDE_NO_EXPORT SMModel EUCJPSMModel;
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extern KDE_NO_EXPORT SMModel EUCKRSMModel;
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extern KDE_NO_EXPORT SMModel EUCTWSMModel;
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extern KDE_NO_EXPORT SMModel GB18030SMModel;
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extern KDE_NO_EXPORT SMModel SJISSMModel;
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extern KDE_NO_EXPORT SMModel UCS2LESMModel;
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extern KDE_NO_EXPORT SMModel UCS2BESMModel;
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extern KDE_NO_EXPORT SMModel HZSMModel;
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extern KDE_NO_EXPORT SMModel ISO2022CNSMModel;
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extern KDE_NO_EXPORT SMModel ISO2022JPSMModel;
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extern KDE_NO_EXPORT SMModel ISO2022KRSMModel;
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}
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#endif /* nsCodingStateMachine_h__ */
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