request.h revision 104862 
1// -*- C++ -*-
2/* Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2002
3   Free Software Foundation, Inc.
4     Written by James Clark (jjc@jclark.com)
5
6This file is part of groff.
7
8groff is free software; you can redistribute it and/or modify it under
9the terms of the GNU General Public License as published by the Free
10Software Foundation; either version 2, or (at your option) any later
11version.
12
13groff is distributed in the hope that it will be useful, but WITHOUT ANY
14WARRANTY; without even the implied warranty of MERCHANTABILITY or
15FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16for more details.
17
18You should have received a copy of the GNU General Public License along
19with groff; see the file COPYING.  If not, write to the Free Software
20Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22typedef void (*REQUEST_FUNCP)();
23
24class macro;
25
26class request_or_macro : public object {
27public:
28  request_or_macro();
29  virtual void invoke(symbol s) = 0;
30  virtual macro *to_macro();
31};
32
33class request : public request_or_macro {
34  REQUEST_FUNCP p;
35public:
36  void invoke(symbol);
37  request(REQUEST_FUNCP);
38};
39
40void delete_request_or_macro(request_or_macro *);
41
42extern object_dictionary request_dictionary;
43
44struct macro_header;
45struct node;
46
47class macro : public request_or_macro {
48  macro_header *p;
49  const char *filename;		// where was it defined?
50  int lineno;
51  int len;
52  int empty_macro;
53public:
54  macro();
55  ~macro();
56  macro(const macro &);
57  macro &operator=(const macro &);
58  void append(unsigned char);
59  void append(node *);
60  void append_unsigned(unsigned int i);
61  void append_int(int i);
62  void append_str(const char *);
63  void set(unsigned char, int);
64  unsigned char get(int);
65  int length();
66  void invoke(symbol);
67  macro *to_macro();
68  void print_size();
69  int empty();
70  friend class string_iterator;
71  friend void chop_macro();
72  friend void substring_request();
73  friend int operator==(const macro &, const macro &);
74};
75
76extern void init_input_requests();
77extern void init_markup_requests();
78extern void init_div_requests();
79extern void init_node_requests();
80extern void init_reg_requests();
81extern void init_env_requests();
82extern void init_hyphen_requests();
83extern void init_request(const char *s, REQUEST_FUNCP f);
84
85class charinfo;
86class environment;
87
88node *charinfo_to_node_list(charinfo *, const environment *);
89