MySQL 8.0.33
Source Code Documentation
sql_lex_hash.h
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1/*
2 Copyright (c) 2015, 2023, Oracle and/or its affiliates.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License, version 2.0,
6 as published by the Free Software Foundation.
7
8 This program is also distributed with certain software (including
9 but not limited to OpenSSL) that is licensed under separate terms,
10 as designated in a particular file or component or in included license
11 documentation. The authors of MySQL hereby grant you an additional
12 permission to link the program and your derivative works with the
13 separately licensed software that they have included with MySQL.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License, version 2.0, for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
23
24/*
25 Hash accessor function for lexical scanners:
26 * sql_lex.h, sql_lex.cc,
27 * sql_lex_hints.h, sql_lex_hints.cc.
28*/
29
30#ifndef SQL_LEX_HASH_INCLUDED
31#define SQL_LEX_HASH_INCLUDED
32
33class Lex_hash {
34 private:
35 const unsigned char *hash_map;
36 const unsigned int entry_max_len;
37
38 public:
39 Lex_hash(const unsigned char *hash_map_arg, unsigned int entry_max_len_arg)
40 : hash_map(hash_map_arg), entry_max_len(entry_max_len_arg) {}
41
42 const struct SYMBOL *get_hash_symbol(const char *s, unsigned int len) const;
43
44 static const Lex_hash sql_keywords;
46
47 static const Lex_hash hint_keywords;
48};
49
50#endif /* SQL_LEX_HASH_INCLUDED */
Definition: sql_lex_hash.h:33
const unsigned char * hash_map
Definition: sql_lex_hash.h:35
static const Lex_hash sql_keywords_and_funcs
Definition: sql_lex_hash.h:45
static const Lex_hash hint_keywords
Definition: sql_lex_hash.h:47
Lex_hash(const unsigned char *hash_map_arg, unsigned int entry_max_len_arg)
Definition: sql_lex_hash.h:39
const struct SYMBOL * get_hash_symbol(const char *s, unsigned int len) const
Definition: sql_lex_hash.cc:74
const unsigned int entry_max_len
Definition: sql_lex_hash.h:36
static const Lex_hash sql_keywords
Definition: sql_lex_hash.h:44
Definition: lex_symbol.h:38