/*************************************************

*      Perl-Compatible Regular Expressions       *

*************************************************/

/* PCRE is a library of functions to support regular expressions whose syntax

and semantics are as close as possible to those of the Perl 5 language.

                       Written by Philip Hazel

           Copyright (c) 1997-2005 University of Cambridge

-----------------------------------------------------------------------------

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,

      this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright

      notice, this list of conditions and the following disclaimer in the

      documentation and/or other materials provided with the distribution.

    * Neither the name of the University of Cambridge nor the names of its

      contributors may be used to endorse or promote products derived from

      this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

POSSIBILITY OF SUCH DAMAGE.

-----------------------------------------------------------------------------

*/

/* This is a freestanding support program to generate a file containing default

character tables for PCRE. The tables are built according to the default C

locale. Now that pcre_maketables is a function visible to the outside world, we

make use of its code from here in order to be consistent. */

#include <ctype.h>

#include <stdio.h>

#include <string.h>

#include "pcre_internal.h"

#define DFTABLES          /* pcre_maketables.c notices this */

#include "pcre_maketables.c"

int main(int argc, char **argv)

{

int i;

FILE *f;

const unsigned char *tables = pcre_maketables();

const unsigned char *base_of_tables = tables;

if (argc != 2)

  {

  fprintf(stderr, "dftables: one filename argument is required\n");

  return 1;

  }

f = fopen(argv[1], "wb");

if (f == NULL)

  {

  fprintf(stderr, "dftables: failed to open %s for writing\n", argv[1]);

  return 1;

  }

/* There are two fprintf() calls here, because gcc in pedantic mode complains

about the very long string otherwise. */

fprintf(f,

  "/*************************************************\n"

  "*      Perl-Compatible Regular Expressions       *\n"

  "*************************************************/\n\n"

  "/* This file is automatically written by the dftables auxiliary \n"

  "program. If you edit it by hand, you might like to edit the Makefile to \n"

  "prevent its ever being regenerated.\n\n");

fprintf(f,

  "This file contains the default tables for characters with codes less than\n"

  "128 (ASCII characters). These tables are used when no external tables are\n"

  "passed to PCRE. */\n\n"

  "const unsigned char _pcre_default_tables[] = {\n\n"

  "/* This table is a lower casing table. */\n\n");

fprintf(f, "  ");

for (i = 0; i < 256; i++)

  {

  if ((i & 7) == 0 && i != 0) fprintf(f, "\n  ");

  fprintf(f, "%3d", *tables++);

  if (i != 255) fprintf(f, ",");

  }

fprintf(f, ",\n\n");

fprintf(f, "/* This table is a case flipping table. */\n\n");

fprintf(f, "  ");

for (i = 0; i < 256; i++)

  {

  if ((i & 7) == 0 && i != 0) fprintf(f, "\n  ");

  fprintf(f, "%3d", *tables++);

  if (i != 255) fprintf(f, ",");

  }

fprintf(f, ",\n\n");

fprintf(f,

  "/* This table contains bit maps for various character classes.\n"

  "Each map is 32 bytes long and the bits run from the least\n"

  "significant end of each byte. The classes that have their own\n"

  "maps are: space, xdigit, digit, upper, lower, word, graph\n"

  "print, punct, and cntrl. Other classes are built from combinations. */\n\n");

fprintf(f, "  ");

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

  {

  if ((i & 7) == 0 && i != 0)

    {

    if ((i & 31) == 0) fprintf(f, "\n");

    fprintf(f, "\n  ");

    }

  fprintf(f, "0x%02x", *tables++);

  if (i != cbit_length - 1) fprintf(f, ",");

  }

fprintf(f, ",\n\n");

fprintf(f,

  "/* This table identifies various classes of character by individual bits:\n"

  "  0x%02x   white space character\n"

  "  0x%02x   letter\n"

  "  0x%02x   decimal digit\n"

  "  0x%02x   hexadecimal digit\n"

  "  0x%02x   alphanumeric or '_'\n"

  "  0x%02x   regular expression metacharacter or binary zero\n*/\n\n",

  ctype_space, ctype_letter, ctype_digit, ctype_xdigit, ctype_word,

  ctype_meta);

fprintf(f, "  ");

for (i = 0; i < 256; i++)

  {

  if ((i & 7) == 0 && i != 0)

    {

    fprintf(f, " /* ");

    if (isprint(i-8)) fprintf(f, " %c -", i-8);

      else fprintf(f, "%3d-", i-8);

    if (isprint(i-1)) fprintf(f, " %c ", i-1);

      else fprintf(f, "%3d", i-1);

    fprintf(f, " */\n  ");

    }

  fprintf(f, "0x%02x", *tables++);

  if (i != 255) fprintf(f, ",");

  }

fprintf(f, "};/* ");

if (isprint(i-8)) fprintf(f, " %c -", i-8);

  else fprintf(f, "%3d-", i-8);

if (isprint(i-1)) fprintf(f, " %c ", i-1);

  else fprintf(f, "%3d", i-1);

fprintf(f, " */\n\n/* End of chartables.c */\n");

fclose(f);

free((void *)base_of_tables);

return 0;

}

/* End of dftables.c */