mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 20:12:31 +01:00
359 lines
9.4 KiB
C++
359 lines
9.4 KiB
C++
/*
|
|
Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
|
|
|
|
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,
|
|
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
|
|
|
|
#include <my_global.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
/* We only need the tokens here */
|
|
#define YYSTYPE_IS_DECLARED
|
|
#include <sql_yacc.h>
|
|
#include <lex.h>
|
|
|
|
#include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
|
|
|
|
/*
|
|
This is a tool used during build only,
|
|
so MY_MAX_TOKEN does not need to be exact,
|
|
only big enough to hold:
|
|
- 256 character terminal tokens
|
|
- YYNTOKENS named terminal tokens
|
|
from bison.
|
|
See also YYMAXUTOK.
|
|
*/
|
|
#define MY_MAX_TOKEN 1000
|
|
/** Generated token. */
|
|
struct gen_lex_token_string
|
|
{
|
|
const char *m_token_string;
|
|
int m_token_length;
|
|
bool m_append_space;
|
|
bool m_start_expr;
|
|
};
|
|
|
|
gen_lex_token_string compiled_token_array[MY_MAX_TOKEN];
|
|
int max_token_seen= 0;
|
|
|
|
char char_tokens[256];
|
|
|
|
int tok_generic_value= 0;
|
|
int tok_generic_value_list= 0;
|
|
int tok_row_single_value= 0;
|
|
int tok_row_single_value_list= 0;
|
|
int tok_row_multiple_value= 0;
|
|
int tok_row_multiple_value_list= 0;
|
|
int tok_ident= 0;
|
|
int tok_unused= 0;
|
|
|
|
void set_token(int tok, const char *str)
|
|
{
|
|
if (tok <= 0)
|
|
{
|
|
fprintf(stderr, "Bad token found\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (tok > max_token_seen)
|
|
{
|
|
max_token_seen= tok;
|
|
}
|
|
|
|
if (max_token_seen >= MY_MAX_TOKEN)
|
|
{
|
|
fprintf(stderr, "Added that many new keywords ? Increase MY_MAX_TOKEN\n");
|
|
exit(1);
|
|
}
|
|
|
|
compiled_token_array[tok].m_token_string= str;
|
|
compiled_token_array[tok].m_token_length= strlen(str);
|
|
compiled_token_array[tok].m_append_space= true;
|
|
compiled_token_array[tok].m_start_expr= false;
|
|
}
|
|
|
|
void set_start_expr_token(int tok)
|
|
{
|
|
compiled_token_array[tok].m_start_expr= true;
|
|
}
|
|
|
|
void compute_tokens()
|
|
{
|
|
int tok;
|
|
unsigned int i;
|
|
char *str;
|
|
|
|
/*
|
|
Default value.
|
|
*/
|
|
for (tok= 0; tok < MY_MAX_TOKEN; tok++)
|
|
{
|
|
compiled_token_array[tok].m_token_string= "(unknown)";
|
|
compiled_token_array[tok].m_token_length= 9;
|
|
compiled_token_array[tok].m_append_space= true;
|
|
compiled_token_array[tok].m_start_expr= false;
|
|
}
|
|
|
|
/*
|
|
Tokens made of just one terminal character
|
|
*/
|
|
for (tok=0; tok < 256; tok++)
|
|
{
|
|
str= & char_tokens[tok];
|
|
str[0]= (char) tok;
|
|
compiled_token_array[tok].m_token_string= str;
|
|
compiled_token_array[tok].m_token_length= 1;
|
|
compiled_token_array[tok].m_append_space= true;
|
|
}
|
|
|
|
max_token_seen= 255;
|
|
|
|
/*
|
|
String terminal tokens, used in sql_yacc.yy
|
|
*/
|
|
set_token(NEG, "~");
|
|
set_token(TABLE_REF_PRIORITY, "TABLE_REF_PRIORITY");
|
|
|
|
/*
|
|
Tokens hard coded in sql_lex.cc
|
|
*/
|
|
|
|
set_token(WITH_CUBE_SYM, "WITH CUBE");
|
|
set_token(WITH_ROLLUP_SYM, "WITH ROLLUP");
|
|
set_token(NOT2_SYM, "!");
|
|
set_token(OR2_SYM, "|");
|
|
set_token(PARAM_MARKER, "?");
|
|
set_token(SET_VAR, ":=");
|
|
set_token(UNDERSCORE_CHARSET, "(_charset)");
|
|
set_token(END_OF_INPUT, "");
|
|
|
|
/*
|
|
Values.
|
|
These tokens are all normalized later,
|
|
so this strings will never be displayed.
|
|
*/
|
|
set_token(BIN_NUM, "(bin)");
|
|
set_token(DECIMAL_NUM, "(decimal)");
|
|
set_token(FLOAT_NUM, "(float)");
|
|
set_token(HEX_NUM, "(hex)");
|
|
set_token(LEX_HOSTNAME, "(hostname)");
|
|
set_token(LONG_NUM, "(long)");
|
|
set_token(NUM, "(num)");
|
|
set_token(TEXT_STRING, "(text)");
|
|
set_token(NCHAR_STRING, "(nchar)");
|
|
set_token(ULONGLONG_NUM, "(ulonglong)");
|
|
|
|
/*
|
|
Identifiers.
|
|
*/
|
|
set_token(IDENT, "(id)");
|
|
set_token(IDENT_QUOTED, "(id_quoted)");
|
|
|
|
/*
|
|
Unused tokens
|
|
*/
|
|
set_token(LOCATOR_SYM, "LOCATOR");
|
|
set_token(SERVER_OPTIONS, "SERVER_OPTIONS");
|
|
set_token(UDF_RETURNS_SYM, "UDF_RETURNS");
|
|
|
|
/*
|
|
See symbols[] in sql/lex.h
|
|
*/
|
|
for (i= 0; i< sizeof(symbols)/sizeof(symbols[0]); i++)
|
|
{
|
|
set_token(symbols[i].tok, symbols[i].name);
|
|
}
|
|
|
|
/*
|
|
See sql_functions[] in sql/lex.h
|
|
*/
|
|
for (i= 0; i< sizeof(sql_functions)/sizeof(sql_functions[0]); i++)
|
|
{
|
|
set_token(sql_functions[i].tok, sql_functions[i].name);
|
|
}
|
|
|
|
/*
|
|
Additional FAKE tokens,
|
|
used internally to normalize a digest text.
|
|
*/
|
|
|
|
max_token_seen++;
|
|
tok_generic_value= max_token_seen;
|
|
set_token(tok_generic_value, "?");
|
|
|
|
max_token_seen++;
|
|
tok_generic_value_list= max_token_seen;
|
|
set_token(tok_generic_value_list, "?, ...");
|
|
|
|
max_token_seen++;
|
|
tok_row_single_value= max_token_seen;
|
|
set_token(tok_row_single_value, "(?)");
|
|
|
|
max_token_seen++;
|
|
tok_row_single_value_list= max_token_seen;
|
|
set_token(tok_row_single_value_list, "(?) /* , ... */");
|
|
|
|
max_token_seen++;
|
|
tok_row_multiple_value= max_token_seen;
|
|
set_token(tok_row_multiple_value, "(...)");
|
|
|
|
max_token_seen++;
|
|
tok_row_multiple_value_list= max_token_seen;
|
|
set_token(tok_row_multiple_value_list, "(...) /* , ... */");
|
|
|
|
max_token_seen++;
|
|
tok_ident= max_token_seen;
|
|
set_token(tok_ident, "(tok_id)");
|
|
|
|
max_token_seen++;
|
|
tok_unused= max_token_seen;
|
|
set_token(tok_unused, "UNUSED");
|
|
|
|
/*
|
|
Fix whitespace for some special tokens.
|
|
*/
|
|
|
|
/*
|
|
The lexer parses "@@variable" as '@', '@', 'variable',
|
|
returning a token for '@' alone.
|
|
|
|
This is incorrect, '@' is not really a token,
|
|
because the syntax "@ @ variable" (with spaces) is not accepted:
|
|
The lexer keeps some internal state after the '@' fake token.
|
|
|
|
To work around this, digest text are printed as "@@variable".
|
|
*/
|
|
compiled_token_array[(int) '@'].m_append_space= false;
|
|
|
|
/*
|
|
Define additional properties for tokens.
|
|
|
|
List all the token that are followed by an expression.
|
|
This is needed to differentiate unary from binary
|
|
'+' and '-' operators, because we want to:
|
|
- reduce <unary +> <NUM> to <?>,
|
|
- preserve <...> <binary +> <NUM> as is.
|
|
*/
|
|
set_start_expr_token('(');
|
|
set_start_expr_token(',');
|
|
set_start_expr_token(EVERY_SYM);
|
|
set_start_expr_token(AT_SYM);
|
|
set_start_expr_token(STARTS_SYM);
|
|
set_start_expr_token(ENDS_SYM);
|
|
set_start_expr_token(DEFAULT);
|
|
set_start_expr_token(RETURN_SYM);
|
|
set_start_expr_token(IF);
|
|
set_start_expr_token(ELSEIF_SYM);
|
|
set_start_expr_token(CASE_SYM);
|
|
set_start_expr_token(WHEN_SYM);
|
|
set_start_expr_token(WHILE_SYM);
|
|
set_start_expr_token(UNTIL_SYM);
|
|
set_start_expr_token(SELECT_SYM);
|
|
|
|
set_start_expr_token(OR_SYM);
|
|
set_start_expr_token(OR2_SYM);
|
|
set_start_expr_token(XOR);
|
|
set_start_expr_token(AND_SYM);
|
|
set_start_expr_token(AND_AND_SYM);
|
|
set_start_expr_token(NOT_SYM);
|
|
set_start_expr_token(BETWEEN_SYM);
|
|
set_start_expr_token(LIKE);
|
|
set_start_expr_token(REGEXP);
|
|
|
|
set_start_expr_token('|');
|
|
set_start_expr_token('&');
|
|
set_start_expr_token(SHIFT_LEFT);
|
|
set_start_expr_token(SHIFT_RIGHT);
|
|
set_start_expr_token('+');
|
|
set_start_expr_token('-');
|
|
set_start_expr_token(INTERVAL_SYM);
|
|
set_start_expr_token('*');
|
|
set_start_expr_token('/');
|
|
set_start_expr_token('%');
|
|
set_start_expr_token(DIV_SYM);
|
|
set_start_expr_token(MOD_SYM);
|
|
set_start_expr_token('^');
|
|
}
|
|
|
|
void print_tokens()
|
|
{
|
|
int tok;
|
|
|
|
printf("#ifdef LEX_TOKEN_WITH_DEFINITION\n");
|
|
printf("lex_token_string lex_token_array[]=\n");
|
|
printf("{\n");
|
|
printf("/* PART 1: character tokens. */\n");
|
|
|
|
for (tok= 0; tok<256; tok++)
|
|
{
|
|
printf("/* %03d */ { \"\\x%02x\", 1, %s, %s},\n",
|
|
tok,
|
|
tok,
|
|
compiled_token_array[tok].m_append_space ? "true" : "false",
|
|
compiled_token_array[tok].m_start_expr ? "true" : "false");
|
|
}
|
|
|
|
printf("/* PART 2: named tokens. */\n");
|
|
|
|
for (tok= 256; tok<= max_token_seen; tok++)
|
|
{
|
|
printf("/* %03d */ { \"%s\", %d, %s, %s},\n",
|
|
tok,
|
|
compiled_token_array[tok].m_token_string,
|
|
compiled_token_array[tok].m_token_length,
|
|
compiled_token_array[tok].m_append_space ? "true" : "false",
|
|
compiled_token_array[tok].m_start_expr ? "true" : "false");
|
|
}
|
|
|
|
printf("/* DUMMY */ { \"\", 0, false, false}\n");
|
|
printf("};\n");
|
|
printf("#endif /* LEX_TOKEN_WITH_DEFINITION */\n");
|
|
|
|
printf("/* DIGEST specific tokens. */\n");
|
|
printf("#define TOK_GENERIC_VALUE %d\n", tok_generic_value);
|
|
printf("#define TOK_GENERIC_VALUE_LIST %d\n", tok_generic_value_list);
|
|
printf("#define TOK_ROW_SINGLE_VALUE %d\n", tok_row_single_value);
|
|
printf("#define TOK_ROW_SINGLE_VALUE_LIST %d\n", tok_row_single_value_list);
|
|
printf("#define TOK_ROW_MULTIPLE_VALUE %d\n", tok_row_multiple_value);
|
|
printf("#define TOK_ROW_MULTIPLE_VALUE_LIST %d\n", tok_row_multiple_value_list);
|
|
printf("#define TOK_IDENT %d\n", tok_ident);
|
|
printf("#define TOK_UNUSED %d\n", tok_unused);
|
|
}
|
|
|
|
int main(int argc,char **argv)
|
|
{
|
|
puts("/*");
|
|
puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2011"));
|
|
puts("*/");
|
|
|
|
printf("/*\n");
|
|
printf(" This file is generated, do not edit.\n");
|
|
printf(" See file sql/gen_lex_token.cc.\n");
|
|
printf("*/\n");
|
|
printf("struct lex_token_string\n");
|
|
printf("{\n");
|
|
printf(" const char *m_token_string;\n");
|
|
printf(" int m_token_length;\n");
|
|
printf(" bool m_append_space;\n");
|
|
printf(" bool m_start_expr;\n");
|
|
printf("};\n");
|
|
printf("typedef struct lex_token_string lex_token_string;\n");
|
|
|
|
compute_tokens();
|
|
print_tokens();
|
|
|
|
return 0;
|
|
}
|
|
|