summaryrefslogtreecommitdiff
path: root/troff/charinfo.h
blob: 760978f2809c5d46b69318a26d97de8f5d94b321 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
// -*- 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, 675 Mass Ave, Cambridge, MA 02139, USA. */

class macro;

class charinfo {
  static int next_index;
  charinfo *translation;
  int index;
  int number;
  macro *mac;
  unsigned char special_translation;
  unsigned char hyphenation_code;
  unsigned char flags;
  unsigned char ascii_code;
  char not_found;
public:
  enum { 
    ENDS_SENTENCE = 1,
    BREAK_BEFORE = 2,
    BREAK_AFTER = 4,
    OVERLAPS_HORIZONTALLY = 8,
    OVERLAPS_VERTICALLY = 16,
    TRANSPARENT = 32,
    NUMBERED = 64
    };
  enum {
    TRANSLATE_NONE,
    TRANSLATE_SPACE,
    TRANSLATE_DUMMY,
    TRANSLATE_STRETCHABLE_SPACE,
    TRANSLATE_HYPHEN_INDICATOR
  };
  symbol nm;
  charinfo(symbol s);
  int get_index();
  int ends_sentence();
  int overlaps_vertically();
  int overlaps_horizontally();
  int can_break_before();
  int can_break_after();
  int transparent();
  unsigned char get_hyphenation_code();
  unsigned char get_ascii_code();
  void set_hyphenation_code(unsigned char);
  void set_ascii_code(unsigned char);
  charinfo *get_translation();
  void set_translation(charinfo *);
  void set_flags(unsigned char);
  void set_special_translation(int);
  int get_special_translation();
  macro *set_macro(macro *);
  macro *get_macro();
  int first_time_not_found();
  void set_number(int);
  int get_number();
  int numbered();
};

charinfo *get_charinfo(symbol);
extern charinfo *charset_table[];
charinfo *get_charinfo_by_number(int);

inline int charinfo::overlaps_horizontally()
{
  return flags & OVERLAPS_HORIZONTALLY;
}

inline int charinfo::overlaps_vertically()
{
  return flags & OVERLAPS_VERTICALLY;
}

inline int charinfo::can_break_before()
{
  return flags & BREAK_BEFORE;
}

inline int charinfo::can_break_after()
{
  return flags & BREAK_AFTER;
}

inline int charinfo::ends_sentence()
{
  return flags & ENDS_SENTENCE;
}

inline int charinfo::transparent()
{
  return flags & TRANSPARENT;
}

inline int charinfo::numbered()
{
  return flags & NUMBERED;
}

inline charinfo *charinfo::get_translation()
{
  return translation;
}

inline unsigned char charinfo::get_hyphenation_code()
{
  return hyphenation_code;
}

inline unsigned char charinfo::get_ascii_code()
{
  return ascii_code;
}

inline void charinfo::set_flags(unsigned char c)
{
  flags = c;
}

inline int charinfo::get_index()
{
  return index;
}

inline int charinfo::get_special_translation()
{
  return special_translation;
}

inline macro *charinfo::get_macro()
{
  return mac;
}

inline int charinfo::first_time_not_found()
{
  if (not_found)
    return 0;
  else {
    not_found = 1;
    return 1;
  }
}