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	nigel	27	/*************************************************
2			* Perl-Compatible Regular Expressions *
3			*************************************************/
4
5	nigel	77	/* PCRE is a library of functions to support regular expressions whose syntax
6	nigel	27	and semantics are as close as possible to those of the Perl 5 language.
7
8	nigel	77	Written by Philip Hazel
9	ph10	117	Copyright (c) 1997-2007 University of Cambridge
10	nigel	27
11			-----------------------------------------------------------------------------
12	nigel	75	Redistribution and use in source and binary forms, with or without
13			modification, are permitted provided that the following conditions are met:
14	nigel	27
15	nigel	75	* Redistributions of source code must retain the above copyright notice,
16			this list of conditions and the following disclaimer.
17	nigel	27
18	nigel	75	* 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	nigel	27
22	nigel	75	* 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	nigel	29
26	nigel	75	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	nigel	27	-----------------------------------------------------------------------------
38			*/
39
40
41	ph10	128	/* 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	nigel	77	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	nigel	27
46	ph10	200	#ifdef HAVE_CONFIG_H
47	ph10	199	#include <config.h>
48	ph10	200	#endif
49	ph10	199
50	nigel	27	#include <ctype.h>
51			#include <stdio.h>
52			#include <string.h>
53	ph10	128	#include <locale.h>
54	nigel	27
55	nigel	77	#include "pcre_internal.h"
56	nigel	27
57	nigel	77	#define DFTABLES /* pcre_maketables.c notices this */
58			#include "pcre_maketables.c"
59	nigel	27
60
61	nigel	73	int main(int argc, char **argv)
62	nigel	27	{
63	nigel	73	FILE *f;
64	ph10	128	int i = 1;
65			const unsigned char *tables;
66			const unsigned char *base_of_tables;
67	nigel	27
68	ph10	128	/* 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	nigel	73	{
74	ph10	128	setlocale(LC_ALL, ""); /* Set from environment variables */
75			i++;
76			}
77
78			if (argc < i + 1)
79			{
80	nigel	73	fprintf(stderr, "dftables: one filename argument is required\n");
81			return 1;
82			}
83
84	ph10	128	tables = pcre_maketables();
85			base_of_tables = tables;
86
87			f = fopen(argv[i], "wb");
88	nigel	73	if (f == NULL)
89			{
90			fprintf(stderr, "dftables: failed to open %s for writing\n", argv[1]);
91			return 1;
92			}
93
94	ph10	128	/* There are several fprintf() calls here, because gcc in pedantic mode
95			complains about the very long string otherwise. */
96	nigel	65
97	nigel	73	fprintf(f,
98	nigel	27	"/*************************************************\n"
99			"* Perl-Compatible Regular Expressions *\n"
100			"*************************************************/\n\n"
101	ph10	128	"/* 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	nigel	73	fprintf(f,
106	ph10	199	"The following #includes are present because without them gcc 4.x may remove\n"
107	nigel	93	"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	ph10	200	"#ifdef HAVE_CONFIG_H\n"
113			"#include <config.h>\n"
114			"#endif\n\n"
115	nigel	93	"#include \"pcre_internal.h\"\n\n");
116			fprintf(f,
117	nigel	77	"const unsigned char _pcre_default_tables[] = {\n\n"
118	nigel	27	"/* This table is a lower casing table. */\n\n");
119
120	nigel	73	fprintf(f, " ");
121	nigel	27	for (i = 0; i < 256; i++)
122			{
123	nigel	73	if ((i & 7) == 0 && i != 0) fprintf(f, "\n ");
124			fprintf(f, "%3d", *tables++);
125			if (i != 255) fprintf(f, ",");
126	nigel	27	}
127	nigel	73	fprintf(f, ",\n\n");
128	nigel	27
129	nigel	73	fprintf(f, "/* This table is a case flipping table. */\n\n");
130	nigel	27
131	nigel	73	fprintf(f, " ");
132	nigel	27	for (i = 0; i < 256; i++)
133			{
134	nigel	73	if ((i & 7) == 0 && i != 0) fprintf(f, "\n ");
135			fprintf(f, "%3d", *tables++);
136			if (i != 255) fprintf(f, ",");
137	nigel	27	}
138	nigel	73	fprintf(f, ",\n\n");
139	nigel	27
140	nigel	73	fprintf(f,
141	nigel	43	"/* 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	nigel	27
147	nigel	73	fprintf(f, " ");
148	nigel	27	for (i = 0; i < cbit_length; i++)
149			{
150			if ((i & 7) == 0 && i != 0)
151			{
152	nigel	73	if ((i & 31) == 0) fprintf(f, "\n");
153			fprintf(f, "\n ");
154	nigel	27	}
155	nigel	73	fprintf(f, "0x%02x", *tables++);
156			if (i != cbit_length - 1) fprintf(f, ",");
157	nigel	27	}
158	nigel	73	fprintf(f, ",\n\n");
159	nigel	27
160	nigel	73	fprintf(f,
161	nigel	27	"/* 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	nigel	73	fprintf(f, " ");
172	nigel	27	for (i = 0; i < 256; i++)
173			{
174			if ((i & 7) == 0 && i != 0)
175			{
176	nigel	73	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	nigel	27	}
183	nigel	73	fprintf(f, "0x%02x", *tables++);
184			if (i != 255) fprintf(f, ",");
185	nigel	27	}
186
187	nigel	73	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	ph10	128	fprintf(f, " /\n\n/ End of pcre_chartables.c */\n");
193	nigel	27
194	nigel	73	fclose(f);
195	nigel	77	free((void *)base_of_tables);
196	nigel	27	return 0;
197			}
198
199			/* End of dftables.c */
Name	Value
svn:eol-style	native
svn:keywords	"Author Date Id Revision Url"