/*

   Copyright (c) 2015, 2025, Oracle and/or its affiliates.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License, version 2.0,

   as published by the Free Software Foundation.

   This program is designed to work with certain software (including

   but not limited to OpenSSL) that is licensed under separate terms,

   as designated in a particular file or component or in included license

   documentation.  The authors of MySQL hereby grant you an additional

   permission to link the program and your derivative works with the

   separately licensed software that they have either included with

   the program or referenced in the documentation.

   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, version 2.0, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */

/*

  Hash accessor function for lexical scanners:

  * sql_lex.h, sql_lex.cc,

  * sql_lex_hints.h, sql_lex_hints.cc.

*/

#ifndef SQL_LEX_HASH_INCLUDED

#define SQL_LEX_HASH_INCLUDED

class Lex_hash {

 private:

  const unsigned char *hash_map;

  const unsigned int entry_max_len;

 public:

  Lex_hash(const unsigned char *hash_map_arg, unsigned int entry_max_len_arg)

      : hash_map(hash_map_arg), entry_max_len(entry_max_len_arg) {}

  const struct SYMBOL *get_hash_symbol(const char *s, unsigned int len) const;

  static const Lex_hash sql_keywords;

  static const Lex_hash sql_keywords_and_funcs;

  static const Lex_hash hint_keywords;

};

#endif /* SQL_LEX_HASH_INCLUDED */