xap_Dictionary.h

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/* AbiSource Application Framework
 * Copyright (C) 1998,1999 AbiSource, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */


#ifndef XAP_DICTIONARY_H
#define XAP_DICTIONARY_H

#include <stdio.h>

/* pre-emptive dismissal; ut_types.h is needed by just about everything,
 * so even if it's commented out in-file that's still a lot of work for
 * the preprocessor to do...
 */
#ifndef UT_TYPES_H
#include "ut_types.h"
#endif
#include "ut_hash.h"

/*
    A simple custom dictionary class, which allows the user to add words
    which aren't in the standard dictionary.  The contents are stored as
    UTF-8 plaintext, with one word per line.
*/
class ABI_EXPORT XAP_Dictionary
{
public:
    XAP_Dictionary(const char * szFilename);
    ~XAP_Dictionary();

    const char *        getShortName(void) const;

    bool                load(void);
    bool                save(void);
    UT_uint32                       countCommonChars(UT_UCSChar * pszNeedle, UT_UCSChar *pszHaystack);
    void                            suggestWord(UT_GenericVector<UT_UCSChar *> * pVecSuggestions, const UT_UCSChar * pWord, UT_uint32 len);
    bool                            addWord(const char * pWord);
    bool                addWord(const UT_UCSChar * pWord, UT_uint32 len);
    bool                isWord(const UT_UCSChar * pWord, UT_uint32 len) const;

protected:
    bool                _openFile(const char * mode);
    UT_uint32           _writeBytes(const UT_Byte * pBytes, UT_uint32 length);
    bool                _writeBytes(const UT_Byte * sz);
    bool                _closeFile(void);
    void                _abortFile(void);

    bool                _parseUTF8(void);
    void                _outputUTF8(const UT_UCSChar * data, UT_uint32 length);

    char *      m_szFilename;

    bool                m_bDirty;
    UT_GenericStringMap<UT_UCSChar *>       m_hashWords;

private:
    FILE *              m_fp;
};


#endif /* XAP_DICTIONARY_H */