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LocalDictionary.h

/*  -*-objc-*-
 *
 *  Dictionary Reader - A Dict client for GNUstep
 *  Copyright (C) 2006 Guenther Noack
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 *  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
 */

#import <Foundation/Foundation.h>
#import "DefinitionWriter.h"

@interface LocalDictionary : NSObject
{
@private
  
  // the handle for the dictionary file
  NSFileHandle* dictHandle;
  
  // the ranges of the articles
  NSDictionary* ranges;
  
  NSString* indexFile;
  NSString* dictFile;
  NSString* fullName;
  
  id<DefinitionWriter> defWriter;
  
  BOOL opened;
}

// INITIALISATION

/**
 * Initialises the instance by expanding the given base name using
 * the .dict and .index postfixes and looking it up as resource.
 */
-(id) initWithResourceName: (NSString*) baseName;

/**
 * Initialises the instance with the specified Dict-server-style index
 * and dictionary database files.
 */
-(id) initWithIndexAtPath: (NSString*) indexFile
       dictionaryAtPath: (NSString*) dbFile;


// MAIN FUNCTIONALITY

/**
 * Gives away the client identification string to the dictionary handle.
 */
-(void) sendClientString: (NSString*) clientName;

/**
 * Lets the dictionary handle show handle information in the main window.
 * TODO: Rename to handleDescription!
 */
-(void) serverDescription;

/**
 * Lets the dictionary handle describe a specific database.
 */
-(void) descriptionForDatabase: (NSString*) aDatabase;

/**
 * Lets the dictionary handle print all available definitions
 * for aWord in the main window.
 */
-(void) definitionFor: (NSString*) aWord;

/**
 * Lets the dictionary handle print the defintion for aWord
 * in a specific dictionary. (Note: The dictionary handle may
 * represent multiple dictionaries.)
 */
-(void) definitionFor: (NSString*) aWord
       inDictionary: (NSString*) aDict;


// SETTING UP THE CONNECTION

/**
 * Opens the dictionary handle. Needs to be done before asking for
 * definitions. Implementing classes may open network connections
 * here.
 */
-(void)open;

/**
 * Closes the dictionary handle. Implementing classes may close
 * network connections here.
 */
-(void)close;

/**
 * Provides the dictionary handle with a definition writer to write
 * its word definitions to.
 */
-(void) setDefinitionWriter: (id<DefinitionWriter>) aDefinitionWriter;



// PRIVATE

/**
 * Returns a dictionary entry from the file as a string. If not present,
 * nil is returned.
 */
-(NSString*) _getEntryFor: (NSString*) aWord;

@end


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