66 lines
2 KiB
C++
66 lines
2 KiB
C++
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//+---------------------------------------------------------------------------
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//
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//
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// CThaiTrieIter - class CThaiTrieIter use for traversing trie.
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//
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// History:
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// created 7/99 aarayas
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//
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// <20>1999 Microsoft Corporation
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//----------------------------------------------------------------------------
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#ifndef _CTHAITRIEITER_H_
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#define _CTHAITRIEITER_H_
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#include "ctrie.hpp"
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#include "thwbdef.hpp"
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#include "WB_Asserts.h"
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#include "lextable.hpp"
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BOOL IsThaiUpperAndLowerClusterCharacter(WCHAR wc);
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BOOL IsThaiBeginClusterCharacter(WCHAR wc);
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BOOL IsThaiEndingClusterCharacter(WCHAR wc);
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BOOL IsThaiConsonant(WCHAR wc);
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bool IsThaiMostlyBeginCharacter(WCHAR wc);
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bool IsThaiMostlyLastCharacter(WCHAR wc);
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//unsigned int GetCluster(WCHAR* pszIndex);
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DWORD POSCompress(WCHAR* szTag);
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WCHAR* POSDecompress(DWORD dwTag);
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enum SOUNDEXSTATE {
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UNABLE_TO_MOVE,
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NOSUBSTITUTE,
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SUBSTITUTE_DIACRITIC,
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SUBSTITUTE_SOUNDLIKECHAR
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};
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class CThaiTrieIter : public CTrieIter {
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public:
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CThaiTrieIter();
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~CThaiTrieIter();
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void Init(CTrie* ctrie);
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BOOL MoveCluster(WCHAR* szCluster, unsigned int iNumCluster);
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bool MoveCluster(WCHAR* szCluster, unsigned int iNumCluster, bool fBeginNewWord);
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SOUNDEXSTATE MoveSoundexByCluster(WCHAR* szCluster, unsigned int iNumCluster, unsigned int iNumNextCluster);
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int Soundex(WCHAR* word);
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bool m_fThaiNumber;
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protected:
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unsigned int GetScore(WCHAR* idealWord, WCHAR* soundLikeWord);
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bool Traverse(unsigned int iCharPos, unsigned int scoring);
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inline void CopyScan();
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// Trie Iterator - extra iterator for use as
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TRIESCAN trieScan1;
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WCHAR* soundexWord;
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WCHAR* resultWord;
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WCHAR* tempWord;
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unsigned int iResultScore;
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// For optimization quick look up table.
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TRIESCAN* pTrieScanArray;
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private:
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bool CheckNextCluster(WCHAR* szCluster, unsigned int iNumCluster);
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bool GetScanFirstChar(WCHAR wc, TRIESCAN* pTrieScan);
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};
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#endif
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