Current File : //usr/include/mysql/server/private/lex_ident.h
#ifndef LEX_IDENT_INCLUDED
#define LEX_IDENT_INCLUDED
/*
Copyright (c) 2023, MariaDB
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; version 2 of
the License.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA
*/
extern MYSQL_PLUGIN_IMPORT CHARSET_INFO *table_alias_charset;
/*
Identifiers for the database objects stored on disk,
e.g. databases, tables, triggers.
*/
class Lex_ident_fs: public LEX_CSTRING
{
public:
static CHARSET_INFO *charset_info()
{
return table_alias_charset;
}
public:
Lex_ident_fs()
:LEX_CSTRING({0,0})
{ }
Lex_ident_fs(const char *str, size_t length)
:LEX_CSTRING({str, length})
{ }
explicit Lex_ident_fs(const LEX_CSTRING &str)
:LEX_CSTRING(str)
{ }
#if MYSQL_VERSION_ID<=110501
private:
static bool is_valid_ident(const LEX_CSTRING &str)
{
// NULL identifier, or 0-terminated identifier
return (str.str == NULL && str.length == 0) || str.str[str.length] == 0;
}
public:
bool streq(const LEX_CSTRING &rhs) const
{
DBUG_ASSERT(is_valid_ident(*this));
DBUG_ASSERT(is_valid_ident(rhs));
return length == rhs.length &&
my_strcasecmp(charset_info(), str, rhs.str) == 0;
}
#else
/*
Starting from 11.5.1 streq() is inherited from the base.
The above implementations of streq() and is_valid_ident() should be removed.
*/
#error Remove streq() above.
#endif
};
class Lex_ident_db: public Lex_ident_fs
{
public:
using Lex_ident_fs::Lex_ident_fs;
};
class Lex_ident_table: public Lex_ident_fs
{
public:
using Lex_ident_fs::Lex_ident_fs;
};
#endif // LEX_IDENT_INCLUDED
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