1 files changed, 353 insertions, 0 deletions
diff --git a/sql/gen_lex_token.cc b/sql/gen_lex_token.cc
new file mode 100644
index 00000000000..3584dd60c62
--- /dev/null
+++ b/sql/gen_lex_token.cc
@@ -0,0 +1,353 @@
+/*
+   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_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_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_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;
+}
+