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- /* hash.h: declarations for a hash table.
-
- Copyright (C) 1994 Karl Berry.
-
- 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. */
-
- #ifndef HASH_H
- #define HASH_H
-
- #include <kpathsea/c-proto.h>
- #include <kpathsea/types.h>
-
-
- /* A single (key,value) pair. */
- typedef struct hash_element_struct
- {
- const_string key;
- const_string value;
- struct hash_element_struct *next;
- } hash_element_type;
-
- /* The usual arrangement of buckets initialized to null. */
- typedef struct
- {
- hash_element_type **buckets;
- unsigned size;
- } hash_table_type;
-
- #ifdef DEBUG
- /* How to print the hash results when debugging. */
- extern boolean kpse_debug_hash_lookup_int;
- #endif
-
- /* Create a hash table of size SIZE. */
- extern hash_table_type hash_create P1H(unsigned size);
-
- /* Insert the (KEY,VALUE) association into TABLE. KEY may have more
- than one VALUE. Neither KEY nor VALUE is copied. */
- extern void hash_insert P3H(hash_table_type *table, const_string key,
- const_string value);
-
- /* Look up KEY in MAP, and return NULL-terminated list of all matching
- values (not copies), in insertion order. If none, return NULL. */
- extern string *hash_lookup P2H(hash_table_type table, const_string key);
-
- /* Print TABLE to stdout. */
- extern void hash_print P1H(hash_table_type table);
-
- #endif /* not HASH_H */
-