source: trunk/essentials/sys-apps/texinfo/makeinfo/index.h

Last change on this file was 2617, checked in by bird, 19 years ago

GNU Texinfo 4.8

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1/* index.h -- declarations for index.c.
2 $Id: index.h,v 1.2 2004/04/11 17:56:47 karl Exp $
3
4 Copyright (C) 1998, 99 Free Software Foundation, Inc.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20#ifndef INDEX_H
21#define INDEX_H
22
23#include "makeinfo.h"
24#include "cmds.h"
25
26/* User commands are only new indices. (Macros are handled separately.) */
27extern COMMAND **user_command_array;
28extern int user_command_array_len;
29
30/* An index element... */
31typedef struct index_elt
32{
33 struct index_elt *next;
34 char *entry; /* The index entry itself, after expansion. */
35 char *entry_text; /* The original, non-expanded entry text. */
36 char *node; /* The node from whence it came. */
37 char *section; /* Current section number we are in, */
38 char *section_name; /* ... and its title. */
39 int code; /* Nonzero means add `@code{...}' when
40 printing this element. */
41 int defining_line; /* Line number where this entry was written. */
42 int output_line; /* And line number where it is in the output. */
43 char *defining_file; /* Source file for defining_line. */
44 char *output_file; /* Output file for output_line. */
45 int entry_number; /* Entry number. */
46} INDEX_ELT;
47
48
49/* A list of short-names for each index.
50 There are two indices into the the_indices array.
51 * read_index is the index that points to the list of index
52 entries that we will find if we ask for the list of entries for
53 this name.
54 * write_index is the index that points to the list of index entries
55 that we will add new entries to.
56
57 Initially, read_index and write_index are the same, but the
58 @syncodeindex and @synindex commands can change the list we add
59 entries to.
60
61 For example, after the commands
62 @cindex foo
63 @defindex ii
64 @synindex cp ii
65 @cindex bar
66
67 the cp index will contain the entry `foo', and the new ii
68 index will contain the entry `bar'. This is consistent with the
69 way texinfo.tex handles the same situation.
70
71 In addition, for each index, it is remembered whether that index is
72 a code index or not. Code indices have @code{} inserted around the
73 first word when they are printed with printindex. */
74typedef struct
75{
76 char *name;
77 int read_index; /* index entries for `name' */
78 int write_index; /* store index entries here, @synindex can change it */
79 int code;
80} INDEX_ALIST;
81
82extern INDEX_ALIST **name_index_alist;
83
84/* Initialize all indices. */
85extern void init_indices (void);
86
87extern int defined_indices;
88extern int printing_index;
89extern int index_counter;
90
91INDEX_ELT *index_list (char *name);
92
93#endif /* !INDEX_H */
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