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74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
// -*- C++ -*-
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/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.com)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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class reg : public object {
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public:
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virtual const char *get_string() = 0;
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virtual int get_value(units *);
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virtual void increment();
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virtual void decrement();
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virtual void set_increment(units);
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virtual void alter_format(char f, int w = 0);
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virtual const char *get_format();
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virtual void set_value(units);
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};
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class constant_int_reg : public reg {
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int *p;
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public:
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constant_int_reg(int *);
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const char *get_string();
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};
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class general_reg : public reg {
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char format;
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int width;
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int inc;
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public:
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general_reg();
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const char *get_string();
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void increment();
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void decrement();
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void alter_format(char f, int w = 0);
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void set_increment(units);
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const char *get_format();
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void add_value(units);
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void set_value(units) = 0;
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int get_value(units *) = 0;
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};
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class variable_reg : public general_reg {
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units *ptr;
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public:
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variable_reg(int *);
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void set_value(units);
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int get_value(units *);
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};
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extern object_dictionary number_reg_dictionary;
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extern void set_number_reg(symbol nm, units n);
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reg *lookup_number_reg(symbol);
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#if 0
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void inline_define_reg();
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#endif
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