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
|
/* search.h -- Structure used to search large bodies of text, with bounds. */
/* This file is part of GNU Info, a program for reading online documentation
stored in Info format.
Copyright (C) 1993 Free Software Foundation, Inc.
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Written by Brian Fox (bfox@ai.mit.edu). */
/* The search functions take two arguments:
1) a string to search for, and
2) a pointer to a SEARCH_BINDING which contains the buffer, start,
and end of the search.
They return a long, which is the offset from the start of the buffer
at which the match was found. An offset of -1 indicates failure. */
#if !defined (_SEARCH_H_)
#define _SEARCH_H_
typedef struct {
char *buffer; /* The buffer of text to search. */
long start; /* Offset of the start of the search. */
long end; /* Offset of the end of the searh. */
int flags; /* Flags controlling the type of search. */
} SEARCH_BINDING;
#define S_FoldCase 0x01 /* Set means fold case in searches. */
#define S_SkipDest 0x02 /* Set means return pointing after the dest. */
SEARCH_BINDING *make_binding (), *copy_binding ();
extern long search_forward (), search_backward (), search ();
extern int looking_at ();
/* Note that STRING_IN_LINE () always returns the offset of the 1st character
after the string. */
extern int string_in_line ();
/* Some unixes don't have strcasecmp or strncasecmp. */
#if !defined (HAVE_STRCASECMP)
extern int strcasecmp (), strncasecmp ();
#endif /* !HAVE_STRCASECMP */
/* Function names that start with "skip" are passed a string, and return
an offset from the start of that string. Function names that start
with "find" are passed a SEARCH_BINDING, and return an absolute position
marker of the item being searched for. "Find" functions return a value
of -1 if the item being looked for couldn't be found. */
extern int skip_whitespace (), skip_non_whitespace ();
extern int skip_whitespace_and_newlines (), skip_line ();
extern int skip_node_characters (), skip_node_separator ();
#define DONT_SKIP_NEWLINES 0
#define SKIP_NEWLINES 1
extern long find_node_separator (), find_tags_table ();
extern long find_node_in_binding ();
#endif /* !_SEARCH_H_ */
|
