1 files changed, 151 insertions, 0 deletions
diff --git a/kbabel/kbabeldict/modules/dbsearchengine2/chunk.h b/kbabel/kbabeldict/modules/dbsearchengine2/chunk.h
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+++ b/kbabel/kbabeldict/modules/dbsearchengine2/chunk.h
@@ -0,0 +1,151 @@
+//
+// C++ Interface: chunk
+//
+// Description: 
+//
+//
+// Author: Andrea Rizzi <[email protected]>, (C) 2003
+//
+// Copyright: See COPYING file that comes with this distribution
+//
+//
+#ifndef DBSE2_CHUNK_H
+#define DBSE2_CHUNK_H
+#include <qstring.h>
+#include <qvaluelist.h>
+#include "database.h"
+
+/**
+  * Abstract class for text chunks. 
+  * Examples of chunks are "Words" or "Sentences"
+  * This abstraction allow to use generic algorithm on chunks,
+  * like chunkByChunk translation or chunk indexing.
+  */
+class AbstractChunk
+{
+    public:
+    AbstractChunk(DataBaseInterface *_di) {di=_di;}
+    virtual ~AbstractChunk();
+    /**
+      * This function should return a list of translation for the current chunk.
+      */
+    virtual QValueList<QueryResult> translations()=0;
+    
+    //FIXME: is this in the right place, better in factory? check that stuff
+    //virtual QValueList<QueryResult> translationsFromReference(uint reference)=0;
+    virtual QValueList<uint> locationReferences()=0;
+    virtual void setLocationReferences(QValueList<uint>)=0;
+    virtual QString chunkString()=0;
+    
+    protected:
+    DataBaseInterface *di;
+};
+
+/**
+  * Concrete impl of Chunk, in this case chunks are words.
+  */
+class WordChunk : public AbstractChunk
+{
+    public:
+    WordChunk(DataBaseInterface *di,QString _word);
+    virtual QValueList<QueryResult> translations();
+    //virtual QValueList<QueryResult> translationsFromReference(uint reference);
+    virtual QValueList<uint> locationReferences();
+    virtual void setLocationReferences(QValueList<uint>);
+    virtual QString chunkString(){return word;}
+
+    //static QValueList<WordChunk> divide(QString);
+    private:
+    QString word;
+};
+
+/**
+  * Concrete impl of Chunk, in this case chunks are sentences.
+  */
+class SentenceChunk : public AbstractChunk
+{
+    public:
+    SentenceChunk(DataBaseInterface *di,QString _sentence);
+    virtual QValueList<QueryResult> translations();
+    //virtual QValueList<QueryResult> translationsFromReference(uint reference);
+    virtual QValueList<uint> locationReferences();
+    virtual void setLocationReferences(QValueList<uint>);
+    virtual QString chunkString(){return sentence;}
+
+   // static QValueList<SentenceChunk> divide(QString);
+    
+    private:
+    QString sentence;    
+};
+
+
+/**********************************
+  CHUNK FACTORIES
+**********************************/
+
+
+class AbstractChunkFactory 
+{
+  public:
+    AbstractChunkFactory(DataBaseInterface *_di)
+    {
+	di=_di;
+    }
+    virtual ~AbstractChunkFactory(){}
+    virtual  QPtrList<AbstractChunk> chunks()=0;
+    /**
+      Change th string and return the chunks
+      */
+    virtual  QPtrList<AbstractChunk> chunks(const QString& s)
+    {
+	string=s;
+	return chunks();
+    }
+    /**
+      * Returns the list of separators of last @ref chunks() call
+      */
+    
+    virtual  QStringList separators(){ return _separators;}
+    void setQuery(const QString& s)
+    {
+	string=s;
+    }
+  protected:
+    QString string;
+    QStringList _separators;
+    DataBaseInterface *di;
+};
+
+class WordChunkFactory : public AbstractChunkFactory
+{
+  public:
+    WordChunkFactory(DataBaseInterface *_di);
+    /**
+      YOU SHOULD DELETE THE CHUNKS!!
+      */
+    virtual  QPtrList<AbstractChunk> chunks();
+};
+
+class CaseBasedWordChunkFactory : public AbstractChunkFactory
+{
+  public:
+    CaseBasedWordChunkFactory(DataBaseInterface *_di);
+    /**
+      YOU SHOULD DELETE THE CHUNKS!!
+      */
+    virtual  QPtrList<AbstractChunk> chunks();
+};
+
+class SentenceChunkFactory : public AbstractChunkFactory
+{
+  public:
+    SentenceChunkFactory(DataBaseInterface *_di);
+    
+    /**
+      YOU SHOULD DELETE THE CHUNKS!!
+      */
+    virtual  QPtrList<AbstractChunk> chunks();
+};
+
+
+#endif //_CHUNK_H_