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      1 /*	$NetBSD: request.h,v 1.1.1.1 2016/01/13 18:41:48 christos Exp $	*/
      2 
      3 // -*- C++ -*-
      4 /* Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2002, 2004
      5    Free Software Foundation, Inc.
      6      Written by James Clark (jjc (at) jclark.com)
      7 
      8 This file is part of groff.
      9 
     10 groff is free software; you can redistribute it and/or modify it under
     11 the terms of the GNU General Public License as published by the Free
     12 Software Foundation; either version 2, or (at your option) any later
     13 version.
     14 
     15 groff is distributed in the hope that it will be useful, but WITHOUT ANY
     16 WARRANTY; without even the implied warranty of MERCHANTABILITY or
     17 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     18 for more details.
     19 
     20 You should have received a copy of the GNU General Public License along
     21 with groff; see the file COPYING.  If not, write to the Free Software
     22 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
     23 
     24 typedef void (*REQUEST_FUNCP)();
     25 
     26 class macro;
     27 
     28 class request_or_macro : public object {
     29 public:
     30   request_or_macro();
     31   virtual void invoke(symbol s) = 0;
     32   virtual macro *to_macro();
     33 };
     34 
     35 class request : public request_or_macro {
     36   REQUEST_FUNCP p;
     37 public:
     38   void invoke(symbol);
     39   request(REQUEST_FUNCP);
     40 };
     41 
     42 void delete_request_or_macro(request_or_macro *);
     43 
     44 extern object_dictionary request_dictionary;
     45 
     46 class macro_header;
     47 struct node;
     48 
     49 class macro : public request_or_macro {
     50   const char *filename;		// where was it defined?
     51   int lineno;
     52   int len;
     53   int empty_macro;
     54   int is_a_diversion;
     55 public:
     56   macro_header *p;
     57   macro();
     58   ~macro();
     59   macro(const macro &);
     60   macro(int);
     61   macro &operator=(const macro &);
     62   void append(unsigned char);
     63   void append(node *);
     64   void append_unsigned(unsigned int i);
     65   void append_int(int i);
     66   void append_str(const char *);
     67   void set(unsigned char, int);
     68   unsigned char get(int);
     69   int length();
     70   void invoke(symbol);
     71   macro *to_macro();
     72   void print_size();
     73   int empty();
     74   int is_diversion();
     75   friend class string_iterator;
     76   friend void chop_macro();
     77   friend void substring_request();
     78   friend int operator==(const macro &, const macro &);
     79 };
     80 
     81 extern void init_input_requests();
     82 extern void init_markup_requests();
     83 extern void init_div_requests();
     84 extern void init_node_requests();
     85 extern void init_reg_requests();
     86 extern void init_env_requests();
     87 extern void init_hyphen_requests();
     88 extern void init_request(const char *s, REQUEST_FUNCP f);
     89 
     90 class charinfo;
     91 class environment;
     92 
     93 node *charinfo_to_node_list(charinfo *, const environment *);
     94