/* Copyright (C) 1989, 1990 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.uucp)
This file is part of groff.
groff 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 1, or (at your option) any later
groff 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
You should have received a copy of the GNU General Public License along
with groff; see the file LICENSE. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define MUST_ALREADY_EXIST 2
static const char **table
;
symbol(const char *p
, int how
= 0);
operator ==(symbol
) const;
operator !=(symbol
) const;
const char *contents() const;
extern const symbol NULL_SYMBOL
;
inline symbol::symbol() : s(0)
inline int symbol::operator==(symbol p
) const
inline int symbol::operator!=(symbol p
) const
// guaranteed to return a positive integer
inline int symbol::hash() const
inline const char *symbol::contents() const
inline int symbol::is_null() const
symbol
concat(symbol
, symbol
);