view base/TextMatcher.h @ 1376:d9511f9e04d7 dev/refactor-piper-related

Introduce some POD structs for describing an external server application and the desired libraries to load from it, and disambiguating between empty list request and invalid list request. This allows for overriding PiperVampPluginFactory behaviour for using a PluginScan to populate the list request.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2008 QMUL.
   
    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _TEXT_MATCHER_H_
#define _TEXT_MATCHER_H_

#include <QString>
#include <QStringList>
#include "XmlExportable.h"

#include <map>

/// A rather eccentric interface for matching texts in differently-scored fields

class TextMatcher
{
public:
    TextMatcher();
    virtual ~TextMatcher();
    
    struct Match
    {
        QString key; // This field is not used by TextMatcher
        int score;
        typedef std::map<QString, QString> FragmentMap; // text type -> fragment
        FragmentMap fragments;

        Match() : score(0) { }
        Match(const Match &m) :
            key(m.key), score(m.score), fragments(m.fragments) { }

        bool operator<(const Match &m) const; // sort by score first
    };

    void test(Match &match, // existing match record to be augmented
              QStringList keywords, // search terms
              QString text, // to search within
              QString textType, // key to use for fragment map
              int score); // relative weight for hits within this text type

};


#endif