/contrib/groff/src/include/symbol.h
https://bitbucket.org/freebsd/freebsd-head/ · C++ Header · 83 lines · 50 code · 13 blank · 20 comment · 6 complexity · 61615aff2cbe2c2d4b602b4daac2196f MD5 · raw file
- // -*- C++ -*-
- /* Copyright (C) 1989, 1990, 1991, 1992, 2002, 2004
- Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.com)
- 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 2, or (at your option) any later
- version.
- 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
- for more details.
- You should have received a copy of the GNU General Public License along
- with groff; see the file COPYING. If not, write to the Free Software
- Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
- #define DONT_STORE 1
- #define MUST_ALREADY_EXIST 2
- class symbol {
- static const char **table;
- static int table_used;
- static int table_size;
- static char *block;
- static int block_size;
- const char *s;
- public:
- symbol(const char *p, int how = 0);
- symbol();
- unsigned long hash() const;
- int operator ==(symbol) const;
- int operator !=(symbol) const;
- const char *contents() const;
- int is_null() const;
- int is_empty() const;
- };
- extern const symbol NULL_SYMBOL;
- extern const symbol EMPTY_SYMBOL;
- inline symbol::symbol() : s(0)
- {
- }
- inline int symbol::operator==(symbol p) const
- {
- return s == p.s;
- }
- inline int symbol::operator!=(symbol p) const
- {
- return s != p.s;
- }
- inline unsigned long symbol::hash() const
- {
- return (unsigned long)s;
- }
- inline const char *symbol::contents() const
- {
- return s;
- }
- inline int symbol::is_null() const
- {
- return s == 0;
- }
- inline int symbol::is_empty() const
- {
- return s != 0 && *s == 0;
- }
- symbol concat(symbol, symbol);
- extern symbol default_symbol;