sql_lex_hash.h

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/*
   Copyright (c) 2015, 2025, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   as designated in a particular file or component or in included license
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   the program or referenced in the documentation.
 
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   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
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   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 */