~drizzle-trunk/drizzle/development

/* Copyright (C) 2000-2004 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.

   There are special exceptions to the terms and conditions of the GPL as it

   is applied to this software. View the full text of the exception in file

   EXCEPTIONS-CLIENT in the directory of this software distribution.

   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 */

/* can't use -lmysys because this prog is used to create -lstrings */

#include <my_global.h>

#include <ctype.h>

#include <string.h>

#include <unistd.h>

#define CHARSETS_SUBDIR "sql/share/charsets"

#define CTYPE_TABLE_SIZE      257

#define TO_LOWER_TABLE_SIZE   256

#define TO_UPPER_TABLE_SIZE   256

#define SORT_ORDER_TABLE_SIZE 256

#define ROW_LEN 16

void print_arrays_for(char *set);

char *prog;

char buf[1024], *p, *endptr;

int

main(int argc, char **argv)

{

  prog = *argv;

  if (argc < 2) {

    fprintf(stderr, "usage: %s source-dir [charset [, charset]]\n", prog);

    exit(EXIT_FAILURE);

  }

  --argc; ++argv;       /* skip program name */

  if (chdir(*argv) != 0) {

    fprintf(stderr, "%s: can't cd to %s\n", prog, *argv);

    exit(EXIT_FAILURE);

  }

  --argc; ++argv;

  if (chdir(CHARSETS_SUBDIR) != 0) {

    fprintf(stderr, "%s: can't cd to %s\n", prog, CHARSETS_SUBDIR);

    exit(EXIT_FAILURE);

  }

  while (argc--)

    print_arrays_for(*argv++);

  exit(EXIT_SUCCESS);

}

void

print_array(FILE *f, const char *set, const char *name, int n)

{

  int i;

  char val[100];

  printf("uchar %s_%s[] = {\n", name, set);

  p = buf;

  *buf = '\0';

  for (i = 0; i < n; ++i)

  {

    /* get a word from f */

    endptr = p;

    for (;;)

    {

      while (isspace(*endptr))

        ++endptr;

      if (*endptr && *endptr != '#')    /* not comment */

        break;

      if ((fgets(buf, sizeof(buf), f)) == NULL)

        return;         /* XXX: break silently */

      endptr = buf;

    }

    p = val;

    while (!isspace(*endptr))

      *p++ = *endptr++;

    *p = '\0';

    p = endptr;

    /* write the value out */

    if (i == 0 || i % ROW_LEN == n % ROW_LEN)

      printf("  ");

    printf("%3d", (unsigned char) strtol(val, (char **) NULL, 16));

    if (i < n - 1)

      printf(",");

    if ((i+1) % ROW_LEN == n % ROW_LEN)

      printf("\n");

  }

  printf("};\n\n");

}

void

print_arrays_for(char *set)

{

  FILE *f;

  sprintf(buf, "%s.conf", set);

  if ((f = fopen(buf, "r")) == NULL) {

    fprintf(stderr, "%s: can't read conf file for charset %s\n", prog, set);

    exit(EXIT_FAILURE);

  }

  printf("\

/* The %s character set.  Generated automatically by configure and\n\

 * the %s program\n\

 */\n\n",

	 set, prog);

  /* it would be nice if this used the code in mysys/charset.c, but... */

  print_array(f, set, "ctype",      CTYPE_TABLE_SIZE);

  print_array(f, set, "to_lower",   TO_LOWER_TABLE_SIZE);

  print_array(f, set, "to_upper",   TO_UPPER_TABLE_SIZE);

  print_array(f, set, "sort_order", SORT_ORDER_TABLE_SIZE);

  printf("\n");

  fclose(f);

  return;

}