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// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
typedef void (*REQUEST_FUNCP)();
class macro;
class request_or_macro : public object {
public:
request_or_macro();
virtual void invoke(symbol s) = 0;
virtual macro *to_macro();
};
class request : public request_or_macro {
REQUEST_FUNCP p;
public:
void invoke(symbol);
request(REQUEST_FUNCP);
};
void delete_request_or_macro(request_or_macro *);
extern object_dictionary request_dictionary;
struct macro_header;
struct node;
class macro : public request_or_macro {
macro_header *p;
const char *filename; // where was it defined?
int lineno;
int length;
public:
macro();
~macro();
macro(const macro &);
macro &operator=(const macro &);
void append(unsigned char);
void append(node *);
void invoke(symbol);
macro *to_macro();
void print_size();
int empty();
friend class string_iterator;
friend void chop_macro();
friend void substring_macro();
friend int operator==(const macro &, const macro &);
};
extern void init_input_requests();
extern void init_div_requests();
extern void init_node_requests();
extern void init_reg_requests();
extern void init_env_requests();
extern void init_hyphen_requests();
extern void init_request(const char *s, REQUEST_FUNCP f);
extern int no_break_flag; // indicates whether request was invoked with . or '
class charinfo;
class environment;
node *charinfo_to_node_list(charinfo *, const environment *);
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