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/* Copyright (C) 2006 J.F.Dockes
* 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _RCLASPELL_H_INCLUDED_
#define _RCLASPELL_H_INCLUDED_
/* autoconfig.h must be included before this file */
#ifdef RCL_USE_ASPELL
/**
* Aspell speller interface class.
*
* Aspell is used to let the user find about spelling variations that may
* exist in the document set for a given word.
* A specific aspell dictionary is created out of all the terms in the
* xapian index, and we then use it to expand a term to spelling neighbours.
* We use the aspell C api for term expansion, but have
* to execute the program to create dictionaries.
*/
#include <string>
#include <list>
#include "rclconfig.h"
#include "rcldb.h"
#ifndef NO_NAMESPACES
using std::string;
using std::list;
#endif // NO_NAMESPACES
class AspellData;
class Aspell {
public:
Aspell(RclConfig *cnf);
~Aspell();
/** Check health */
bool ok();
/** Find the aspell command and shared library, init function pointers */
bool init(string &reason);
/** Build dictionary out of index term list. This is done at the end
* of an indexing pass. */
bool buildDict(Rcl::Db &db, string &reason);
/** Check that word is in dictionary. ret==false && !reason.empty() => err*/
bool check(Rcl::Db &db, const string& term, string& reason);
/** Return a list of possible expansions for a given word */
bool suggest(Rcl::Db &db, const string& term, list<string> &suggestions,
string &reason);
private:
string dicPath();
RclConfig *m_config;
string m_lang;
AspellData *m_data;
bool make_speller(string& reason);
};
#endif /* RCL_USE_ASPELL */
#endif /* _RCLASPELL_H_INCLUDED_ */