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diff --git a/converters.h b/converters.h
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+// Copyright (C) 2003 Mooffie <mooffie@typo.co.il>
+//
+// 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, USA.
+
+#ifndef BDE_CONVERTERS_H
+#define BDE_CONVERTERS_H
+
+#include <config.h>
+
+#include <errno.h>
+#ifndef EILSEQ
+# define EILSEQ 2000
+#endif
+
+#ifdef USE_ICONV
+# include <iconv.h>
+#endif
+
+#include "types.h"
+
+// A Converter object converts between encodings.
+//
+//  Converter (an abstract class)
+//  |
+//  +-- IconvConverter	    (used when the system has ICONV)
+//  |
+//  +-- ISO88598Converter   (used when no ICONV presents)
+//  +-- Latin1Converter	    ditto
+//  +-- UTF8Converter	    ditto
+
+const char *guess_encoding(const char *buf, int len);
+
+class Converter {
+protected:
+    bool ilseq_repr;
+public:
+    // The Converter interface is based on iconv()'s interface.
+    // if a conversion function fails, it returns -1 and updates errno.
+    virtual int convert(unichar **dest, char **src, int len) = 0;
+    virtual int convert(char **dest, unichar **src, int len) = 0;
+    Converter() {
+	ilseq_repr = false;
+    }
+    virtual ~Converter() { }
+    void enable_ilseq_repr(bool val = true) {
+	ilseq_repr = val;
+    }
+};
+
+#ifdef USE_ICONV
+class IconvConverter : public Converter {
+    iconv_t cd;
+public:
+    IconvConverter();
+    virtual ~IconvConverter();
+
+    int set_source_encoding(const char *encoding);
+    int set_target_encoding(const char *encoding);
+    virtual int convert(unichar **dest, char **src, int len);
+    virtual int convert(char **dest, unichar **src, int len);
+};
+#endif
+
+class ISO88598Converter : public Converter {
+public:
+    virtual int convert(unichar **dest, char **src, int len);
+    virtual int convert(char **dest, unichar **src, int len);
+};
+
+class Latin1Converter : public Converter {
+public:
+    virtual int convert(unichar **dest, char **src, int len);
+    virtual int convert(char **dest, unichar **src, int len);
+};
+
+class UTF8Converter : public Converter {
+public:
+    virtual int convert(unichar **dest, char **src, int len);
+    virtual int convert(char **dest, unichar **src, int len);
+};
+
+class ConverterFactory {
+    static Converter *get_internal_converter(const char *encoding);
+public:
+    static Converter *get_converter_from(const char *encoding);
+    static Converter *get_converter_to(const char *encoding);
+};
+
+#endif
+