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- /* 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., 675 Mass Ave, Cambridge, MA 02139, 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 ();
-
- /* Unix doesn't have stricmp () functions. */
- /* strcmp (), but caseless. */
- extern int stricmp ();
-
- /* Compare at most COUNT characters from STRING1 to STRING2. Case
- doesn't matter. */
- extern int strnicmp ();
-
- /* 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_ */
-
-