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8a287c0ea0
HEADSUP! With PCRE 8.39 the JIT related code was changed in the way, that additional valgrind options became almost unavoidable. Valgrind had it already sometimes hard with JIT, now there are seem to be more cases requiring special valgrind options. For this reason, the new configure option --with-pcre-valgrind was introduced. The option is development/debugging only and turns on the Valgrind related pieces in PCRE, so then false positives are avoided to the big part. In addition, run-tests.php was added a new valgrind option, when the leak check is enabled and the test filepath contains pcre. Thus, to debug the code related to PCRE with JIT enabled, two things would likely make sense - configure --with-pcre-valgrind - valgrind option --smc-check=all if run-tests.php is not used The checks so far reveal no new issues.
212 lines
6.8 KiB
C
212 lines
6.8 KiB
C
/*************************************************
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* Perl-Compatible Regular Expressions *
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*************************************************/
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/* PCRE is a library of functions to support regular expressions whose syntax
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and semantics are as close as possible to those of the Perl 5 language.
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Written by Philip Hazel
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Copyright (c) 1997-2012 University of Cambridge
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-----------------------------------------------------------------------------
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the University of Cambridge nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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-----------------------------------------------------------------------------
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*/
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/* This is a freestanding support program to generate a file containing
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character tables for PCRE. The tables are built according to the current
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locale. Now that pcre_maketables is a function visible to the outside world, we
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make use of its code from here in order to be consistent. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <locale.h>
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#include "pcre_internal.h"
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#define DFTABLES /* pcre_maketables.c notices this */
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#include "pcre_maketables.c"
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int main(int argc, char **argv)
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{
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FILE *f;
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int i = 1;
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const unsigned char *tables;
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const unsigned char *base_of_tables;
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/* By default, the default C locale is used rather than what the building user
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happens to have set. However, if the -L option is given, set the locale from
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the LC_xxx environment variables. */
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if (argc > 1 && strcmp(argv[1], "-L") == 0)
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{
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setlocale(LC_ALL, ""); /* Set from environment variables */
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i++;
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}
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if (argc < i + 1)
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{
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fprintf(stderr, "dftables: one filename argument is required\n");
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return 1;
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}
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tables = pcre_maketables();
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base_of_tables = tables;
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f = fopen(argv[i], "wb");
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if (f == NULL)
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{
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fprintf(stderr, "dftables: failed to open %s for writing\n", argv[1]);
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return 1;
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}
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/* There are several fprintf() calls here, because gcc in pedantic mode
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complains about the very long string otherwise. */
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fprintf(f,
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"/*************************************************\n"
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"* Perl-Compatible Regular Expressions *\n"
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"*************************************************/\n\n"
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"/* This file was automatically written by the dftables auxiliary\n"
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"program. It contains character tables that are used when no external\n"
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"tables are passed to PCRE by the application that calls it. The tables\n"
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"are used only for characters whose code values are less than 256.\n\n");
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fprintf(f,
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"The following #includes are present because without them gcc 4.x may remove\n"
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"the array definition from the final binary if PCRE is built into a static\n"
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"library and dead code stripping is activated. This leads to link errors.\n"
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"Pulling in the header ensures that the array gets flagged as \"someone\n"
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"outside this compilation unit might reference this\" and so it will always\n"
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"be supplied to the linker. */\n\n");
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/* Force config.h in z/OS */
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#if defined NATIVE_ZOS
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fprintf(f,
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"/* For z/OS, config.h is forced */\n"
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"#ifndef HAVE_CONFIG_H\n"
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"#define HAVE_CONFIG_H 1\n"
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"#endif\n\n");
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#endif
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fprintf(f,
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"#ifdef HAVE_CONFIG_H\n"
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"#include \"config.h\"\n"
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"#endif\n\n"
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"#include \"pcre_internal.h\"\n\n");
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fprintf(f,
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"const pcre_uint8 PRIV(default_tables)[] = {\n\n"
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"/* This table is a lower casing table. */\n\n");
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fprintf(f, " ");
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for (i = 0; i < 256; i++)
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{
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if ((i & 7) == 0 && i != 0) fprintf(f, "\n ");
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fprintf(f, "%3d", *tables++);
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if (i != 255) fprintf(f, ",");
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}
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fprintf(f, ",\n\n");
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fprintf(f, "/* This table is a case flipping table. */\n\n");
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fprintf(f, " ");
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for (i = 0; i < 256; i++)
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{
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if ((i & 7) == 0 && i != 0) fprintf(f, "\n ");
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fprintf(f, "%3d", *tables++);
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if (i != 255) fprintf(f, ",");
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}
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fprintf(f, ",\n\n");
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fprintf(f,
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"/* This table contains bit maps for various character classes.\n"
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"Each map is 32 bytes long and the bits run from the least\n"
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"significant end of each byte. The classes that have their own\n"
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"maps are: space, xdigit, digit, upper, lower, word, graph\n"
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"print, punct, and cntrl. Other classes are built from combinations. */\n\n");
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fprintf(f, " ");
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for (i = 0; i < cbit_length; i++)
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{
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if ((i & 7) == 0 && i != 0)
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{
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if ((i & 31) == 0) fprintf(f, "\n");
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fprintf(f, "\n ");
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}
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fprintf(f, "0x%02x", *tables++);
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if (i != cbit_length - 1) fprintf(f, ",");
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}
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fprintf(f, ",\n\n");
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fprintf(f,
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"/* This table identifies various classes of character by individual bits:\n"
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" 0x%02x white space character\n"
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" 0x%02x letter\n"
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" 0x%02x decimal digit\n"
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" 0x%02x hexadecimal digit\n"
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" 0x%02x alphanumeric or '_'\n"
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" 0x%02x regular expression metacharacter or binary zero\n*/\n\n",
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ctype_space, ctype_letter, ctype_digit, ctype_xdigit, ctype_word,
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ctype_meta);
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fprintf(f, " ");
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for (i = 0; i < 256; i++)
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{
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if ((i & 7) == 0 && i != 0)
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{
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fprintf(f, " /* ");
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if (isprint(i-8)) fprintf(f, " %c -", i-8);
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else fprintf(f, "%3d-", i-8);
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if (isprint(i-1)) fprintf(f, " %c ", i-1);
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else fprintf(f, "%3d", i-1);
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fprintf(f, " */\n ");
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}
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fprintf(f, "0x%02x", *tables++);
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if (i != 255) fprintf(f, ",");
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}
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fprintf(f, "};/* ");
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if (isprint(i-8)) fprintf(f, " %c -", i-8);
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else fprintf(f, "%3d-", i-8);
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if (isprint(i-1)) fprintf(f, " %c ", i-1);
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else fprintf(f, "%3d", i-1);
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fprintf(f, " */\n\n/* End of pcre_chartables.c */\n");
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fclose(f);
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free((void *)base_of_tables);
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return 0;
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}
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/* End of dftables.c */
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