search.h

   1 /*
   2  * Copyright 2005 Timo Hirvonen
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17  * 02111-1307, USA.
  18  */
  19
  20 #ifndef _SEARCH_H
  21 #define _SEARCH_H
  22
  23 #include <iter.h>
  24
  25 enum search_direction { SEARCH_FORWARD, SEARCH_BACKWARD };
  26
  27 struct searchable_ops {
  28         void (*lock)(void *data);
  29         void (*unlock)(void *data);
  30         int (*get_prev)(struct iter *iter);
  31         int (*get_next)(struct iter *iter);
  32         int (*get_current)(void *data, struct iter *iter);
  33         int (*matches)(void *data, struct iter *iter, const char *text);
  34 };
  35
  36 struct searchable;
  37
  38 struct searchable *searchable_new(void *data, const struct iter *head, const struct searchable_ops *ops);
  39 void searchable_free(struct searchable *s);
  40
  41 int search(struct searchable *s, const char *text, enum search_direction dir, int beginning);
  42 int search_next(struct searchable *s, const char *text, enum search_direction dir);
  43
  44 #endif