swfilter.h

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/******************************************************************************
 *
 * swfilter.h -     class SWFilter: the base for all Filters in SWORD
 *          a Filter manipulates the text stream in some way,
 *          usually converting text between different markups,
 *          encoding, to show or hide text features
 *          for the user, or to strip markup for searching
 *
 * $Id: swfilter.h 3786 2020-08-30 11:35:14Z scribe $
 *
 * Copyright 1997-2013 CrossWire Bible Society (http://www.crosswire.org)
 *  CrossWire Bible Society
 *  P. O. Box 2528
 *  Tempe, AZ  85280-2528
 *
 * 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 version 2.
 *
 * 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.
 *
 */

#ifndef SWFILTER_H
#define SWFILTER_H

#include <defs.h>

SWORD_NAMESPACE_START

class SWKey;
class SWBuf;
class SWModule;


class SWModule;

class SWDLLEXPORT SWFilter {
public:
    virtual ~SWFilter() {}

    virtual char processText(SWBuf &text, const SWKey *key = 0, const SWModule *module = 0) = 0;

    virtual const char *getHeader() const { return ""; }
};

    SWORD_NAMESPACE_END
#endif