code/trunk/dftables.c

/*************************************************
*      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) 1997-2007 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
character tables for PCRE. The tables are built according to the current
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. */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <locale.h>

#include "pcre_internal.h"

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


int main(int argc, char **argv)
{
FILE *f;
int i = 1;
const unsigned char *tables;
const unsigned char *base_of_tables;

/* By default, the default C locale is used rather than what the building user
happens to have set. However, if the -L option is given, set the locale from
the LC_xxx environment variables. */

if (argc > 1 && strcmp(argv[1], "-L") == 0)
  {
  setlocale(LC_ALL, "");        /* Set from environment variables */
  i++;
  }

if (argc < i + 1)
  {
  fprintf(stderr, "dftables: one filename argument is required\n");
  return 1;
  }

tables = pcre_maketables();
base_of_tables = tables;

f = fopen(argv[i], "wb");
if (f == NULL)
  {
  fprintf(stderr, "dftables: failed to open %s for writing\n", argv[1]);
  return 1;
  }

/* There are several 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 was automatically written by the dftables auxiliary\n"
  "program. It contains character tables that are used when no external\n"
  "tables are passed to PCRE by the application that calls it. The tables\n"
  "are used only for characters whose code values are less than 256.\n\n");
fprintf(f,
  "The following #includes are present because without them gcc 4.x may remove\n"
  "the array definition from the final binary if PCRE is built into a static\n"
  "library and dead code stripping is activated. This leads to link errors.\n"
  "Pulling in the header ensures that the array gets flagged as \"someone\n"
  "outside this compilation unit might reference this\" and so it will always\n"
  "be supplied to the linker. */\n\n"
  "#ifdef HAVE_CONFIG_H\n"
  "#include \"config.h\"\n"
  "#endif\n\n"
  "#include \"pcre_internal.h\"\n\n");
fprintf(f,
  "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 pcre_chartables.c */\n");

fclose(f);
free((void *)base_of_tables);
return 0;
}

/* End of dftables.c */
1	/*************************************************
2	* Perl-Compatible Regular Expressions *
3	*************************************************/
4
5	/* PCRE is a library of functions to support regular expressions whose syntax
6	and semantics are as close as possible to those of the Perl 5 language.
7
8	Written by Philip Hazel
9	Copyright (c) 1997-2007 University of Cambridge
10
11	-----------------------------------------------------------------------------
12	Redistribution and use in source and binary forms, with or without
13	modification, are permitted provided that the following conditions are met:
14
15	* Redistributions of source code must retain the above copyright notice,
16	this list of conditions and the following disclaimer.
17
18	* Redistributions in binary form must reproduce the above copyright
19	notice, this list of conditions and the following disclaimer in the
20	documentation and/or other materials provided with the distribution.
21
22	* Neither the name of the University of Cambridge nor the names of its
23	contributors may be used to endorse or promote products derived from
24	this software without specific prior written permission.
25
26	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
27	AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29	ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
30	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36	POSSIBILITY OF SUCH DAMAGE.
37	-----------------------------------------------------------------------------
38	*/
39
40
41	/* This is a freestanding support program to generate a file containing
42	character tables for PCRE. The tables are built according to the current
43	locale. Now that pcre_maketables is a function visible to the outside world, we
44	make use of its code from here in order to be consistent. */
45
46	#ifdef HAVE_CONFIG_H
47	#include "config.h"
48	#endif
49
50	#include <ctype.h>
51	#include <stdio.h>
52	#include <string.h>
53	#include <locale.h>
54
55	#include "pcre_internal.h"
56
57	#define DFTABLES /* pcre_maketables.c notices this */
58	#include "pcre_maketables.c"
59
60
61	int main(int argc, char **argv)
62	{
63	FILE *f;
64	int i = 1;
65	const unsigned char *tables;
66	const unsigned char *base_of_tables;
67
68	/* By default, the default C locale is used rather than what the building user
69	happens to have set. However, if the -L option is given, set the locale from
70	the LC_xxx environment variables. */
71
72	if (argc > 1 && strcmp(argv[1], "-L") == 0)
73	{
74	setlocale(LC_ALL, ""); /* Set from environment variables */
75	i++;
76	}
77
78	if (argc < i + 1)
79	{
80	fprintf(stderr, "dftables: one filename argument is required\n");
81	return 1;
82	}
83
84	tables = pcre_maketables();
85	base_of_tables = tables;
86
87	f = fopen(argv[i], "wb");
88	if (f == NULL)
89	{
90	fprintf(stderr, "dftables: failed to open %s for writing\n", argv[1]);
91	return 1;
92	}
93
94	/* There are several fprintf() calls here, because gcc in pedantic mode
95	complains about the very long string otherwise. */
96
97	fprintf(f,
98	"/*************************************************\n"
99	"* Perl-Compatible Regular Expressions *\n"
100	"*************************************************/\n\n"
101	"/* This file was automatically written by the dftables auxiliary\n"
102	"program. It contains character tables that are used when no external\n"
103	"tables are passed to PCRE by the application that calls it. The tables\n"
104	"are used only for characters whose code values are less than 256.\n\n");
105	fprintf(f,
106	"The following #includes are present because without them gcc 4.x may remove\n"
107	"the array definition from the final binary if PCRE is built into a static\n"
108	"library and dead code stripping is activated. This leads to link errors.\n"
109	"Pulling in the header ensures that the array gets flagged as \"someone\n"
110	"outside this compilation unit might reference this\" and so it will always\n"
111	"be supplied to the linker. */\n\n"
112	"#ifdef HAVE_CONFIG_H\n"
113	"#include \"config.h\"\n"
114	"#endif\n\n"
115	"#include \"pcre_internal.h\"\n\n");
116	fprintf(f,
117	"const unsigned char _pcre_default_tables[] = {\n\n"
118	"/* This table is a lower casing table. */\n\n");
119
120	fprintf(f, " ");
121	for (i = 0; i < 256; i++)
122	{
123	if ((i & 7) == 0 && i != 0) fprintf(f, "\n ");
124	fprintf(f, "%3d", *tables++);
125	if (i != 255) fprintf(f, ",");
126	}
127	fprintf(f, ",\n\n");
128
129	fprintf(f, "/* This table is a case flipping table. */\n\n");
130
131	fprintf(f, " ");
132	for (i = 0; i < 256; i++)
133	{
134	if ((i & 7) == 0 && i != 0) fprintf(f, "\n ");
135	fprintf(f, "%3d", *tables++);
136	if (i != 255) fprintf(f, ",");
137	}
138	fprintf(f, ",\n\n");
139
140	fprintf(f,
141	"/* This table contains bit maps for various character classes.\n"
142	"Each map is 32 bytes long and the bits run from the least\n"
143	"significant end of each byte. The classes that have their own\n"
144	"maps are: space, xdigit, digit, upper, lower, word, graph\n"
145	"print, punct, and cntrl. Other classes are built from combinations. */\n\n");
146
147	fprintf(f, " ");
148	for (i = 0; i < cbit_length; i++)
149	{
150	if ((i & 7) == 0 && i != 0)
151	{
152	if ((i & 31) == 0) fprintf(f, "\n");
153	fprintf(f, "\n ");
154	}
155	fprintf(f, "0x%02x", *tables++);
156	if (i != cbit_length - 1) fprintf(f, ",");
157	}
158	fprintf(f, ",\n\n");
159
160	fprintf(f,
161	"/* This table identifies various classes of character by individual bits:\n"
162	" 0x%02x white space character\n"
163	" 0x%02x letter\n"
164	" 0x%02x decimal digit\n"
165	" 0x%02x hexadecimal digit\n"
166	" 0x%02x alphanumeric or '_'\n"
167	" 0x%02x regular expression metacharacter or binary zero\n*/\n\n",
168	ctype_space, ctype_letter, ctype_digit, ctype_xdigit, ctype_word,
169	ctype_meta);
170
171	fprintf(f, " ");
172	for (i = 0; i < 256; i++)
173	{
174	if ((i & 7) == 0 && i != 0)
175	{
176	fprintf(f, " /* ");
177	if (isprint(i-8)) fprintf(f, " %c -", i-8);
178	else fprintf(f, "%3d-", i-8);
179	if (isprint(i-1)) fprintf(f, " %c ", i-1);
180	else fprintf(f, "%3d", i-1);
181	fprintf(f, " */\n ");
182	}
183	fprintf(f, "0x%02x", *tables++);
184	if (i != 255) fprintf(f, ",");
185	}
186
187	fprintf(f, "};/* ");
188	if (isprint(i-8)) fprintf(f, " %c -", i-8);
189	else fprintf(f, "%3d-", i-8);
190	if (isprint(i-1)) fprintf(f, " %c ", i-1);
191	else fprintf(f, "%3d", i-1);
192	fprintf(f, " /\n\n/ End of pcre_chartables.c */\n");
193
194	fclose(f);
195	free((void *)base_of_tables);
196	return 0;
197	}
198
199	/* End of dftables.c */
Name	Value
svn:eol-style	native
svn:keywords	"Author Date Id Revision Url"