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Diffstat (limited to 'sql/parse_file.h')
| -rw-r--r-- | sql/parse_file.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/sql/parse_file.h b/sql/parse_file.h new file mode 100644 index 00000000000..33871588e11 --- /dev/null +++ b/sql/parse_file.h @@ -0,0 +1,110 @@ +/* -*- C++ -*- */ +/* Copyright (C) 2004 MySQL AB + + 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; either version 2 of the License, or + (at your option) any later version. + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#ifndef _PARSE_FILE_H_ +#define _PARSE_FILE_H_ + +#define PARSE_FILE_TIMESTAMPLENGTH 19 + +enum file_opt_type { + FILE_OPTIONS_STRING, /* String (LEX_STRING) */ + FILE_OPTIONS_ESTRING, /* Escaped string (LEX_STRING) */ + FILE_OPTIONS_ULONGLONG, /* ulonglong parameter (ulonglong) */ + FILE_OPTIONS_REV, /* Revision version number (ulonglong) */ + FILE_OPTIONS_TIMESTAMP, /* timestamp (LEX_STRING have to be + allocated with length 20 (19+1) */ + FILE_OPTIONS_STRLIST, /* list of escaped strings + (List<LEX_STRING>) */ + FILE_OPTIONS_ULLLIST /* list of ulonglong values + (List<ulonglong>) */ +}; + +struct File_option +{ + LEX_STRING name; /* Name of the option */ + int offset; /* offset to base address of value */ + file_opt_type type; /* Option type */ +}; + + +/* + This hook used to catch no longer supported keys and process them for + backward compatibility. +*/ + +class Unknown_key_hook +{ +public: + Unknown_key_hook() {} /* Remove gcc warning */ + virtual ~Unknown_key_hook() {} /* Remove gcc warning */ + virtual bool process_unknown_string(char *&unknown_key, gptr base, + MEM_ROOT *mem_root, char *end)= 0; +}; + + +/* Dummy hook for parsers which do not need hook for unknown keys */ + +class File_parser_dummy_hook: public Unknown_key_hook +{ +public: + File_parser_dummy_hook() {} /* Remove gcc warning */ + virtual bool process_unknown_string(char *&unknown_key, gptr base, + MEM_ROOT *mem_root, char *end); +}; + +extern File_parser_dummy_hook file_parser_dummy_hook; + +bool get_file_options_ulllist(char *&ptr, char *end, char *line, + gptr base, File_option *parameter, + MEM_ROOT *mem_root); + +char * +parse_escaped_string(char *ptr, char *end, MEM_ROOT *mem_root, LEX_STRING *str); + +class File_parser; +File_parser *sql_parse_prepare(const LEX_STRING *file_name, + MEM_ROOT *mem_root, bool bad_format_errors); + +my_bool +sql_create_definition_file(const LEX_STRING *dir, const LEX_STRING *file_name, + const LEX_STRING *type, + gptr base, File_option *parameters, uint versions); +my_bool rename_in_schema_file(const char *schema, const char *old_name, + const char *new_name, ulonglong revision, + uint num_view_backups); + +class File_parser: public Sql_alloc +{ + char *buff, *start, *end; + LEX_STRING file_type; + my_bool content_ok; +public: + File_parser() :buff(0), start(0), end(0), content_ok(0) + { file_type.str= 0; file_type.length= 0; } + + my_bool ok() { return content_ok; } + LEX_STRING *type() { return &file_type; } + my_bool parse(gptr base, MEM_ROOT *mem_root, + struct File_option *parameters, uint required, + Unknown_key_hook *hook); + + friend File_parser *sql_parse_prepare(const LEX_STRING *file_name, + MEM_ROOT *mem_root, + bool bad_format_errors); +}; + +#endif /* _PARSE_FILE_H_ */ |