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/* Data and function members for defining values and operations of a list node.
Copyright (C) 1989 Free Software Foundation, Inc.
written by Douglas C. Schmidt (schmidt@ics.uci.edu)
This file is part of GNU GPERF.
GNU GPERF 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 1, or (at your option)
any later version.
GNU GPERF 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 GNU GPERF; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _listnode_h
#define _listnode_h
#include "prototype.h"
#define ALPHABET_SIZE 128
typedef struct list_node
{
struct list_node *link; /* TRUE if key has an identical KEY_SET as another key. */
struct list_node *next; /* Points to next element on the list. */
int length; /* Length of the key. */
int hash_value; /* Hash value for the key. */
int occurrence; /* A metric for frequency of key set occurrences. */
int index; /* Position of this node relative to other nodes. */
char *key; /* Key string. */
char *rest; /* Additional information for building hash function. */
char char_set[1]; /* Set of characters to hash, specified by user. */
} LIST_NODE;
extern LIST_NODE *make_list_node P ((char *k, int len));
#endif _listnode_h
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