/* $NetBSD: search.h,v 1.1.1.1 2016/01/14 00:11:29 christos Exp $ */ /* search.h -- Structure used to search large bodies of text, with bounds. Id: search.h,v 1.3 2004/04/11 17:56:46 karl Exp Copyright (C) 1993, 1997, 1998, 2002, 2004 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. */ #ifndef INFO_SEARCH_H #define INFO_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 (char *buffer, long int start, long int end); SEARCH_BINDING *copy_binding (SEARCH_BINDING *binding); extern long search_forward (char *string, SEARCH_BINDING *binding); extern long search_backward (char *input_string, SEARCH_BINDING *binding); extern long search (char *string, SEARCH_BINDING *binding); extern int looking_at (char *string, SEARCH_BINDING *binding); /* Note that STRING_IN_LINE () always returns the offset of the 1st character after the string. */ extern int string_in_line (char *string, char *line); /* 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 (char *string); extern int skip_non_whitespace (char *string); extern int skip_whitespace_and_newlines (char *string); extern int skip_line (char *string); extern int skip_node_characters (char *string, int newlines_okay); extern int skip_node_separator (char *body); #define DONT_SKIP_NEWLINES 0 #define SKIP_NEWLINES 1 extern long find_node_separator (SEARCH_BINDING *binding); extern long find_tags_table (SEARCH_BINDING *binding); extern long find_node_in_binding (char *nodename, SEARCH_BINDING *binding); #endif /* not INFO_SEARCH_H */