checkpoint

1 files changed, 61 insertions, 0 deletions

diff --git a/include/hash.h b/include/hash.h
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+++ b/include/hash.h
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+/* hash.h: declarations for a hash table.
+
+Copyright (C) 1994, 95 Karl Berry.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+This library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 KPSE_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 stderr.  */
+extern void hash_print P2H(hash_table_type table, boolean summary_only);
+
+#endif /* not HASH_H */