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mongodb/pcre-7.4/pcretest.c

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pcre
2007-11-04 19:11:38 +01:00
/*************************************************
* PCRE testing program *
*************************************************/
/* This program was hacked up as a tester for PCRE. I really should have
written it more tidily in the first place. Will I ever learn? It has grown and
been extended and consequently is now rather, er, *very* untidy in places.
-----------------------------------------------------------------------------
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.
-----------------------------------------------------------------------------
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <locale.h>
#include <errno.h>
/* A number of things vary for Windows builds. Originally, pcretest opened its
input and output without "b"; then I was told that "b" was needed in some
environments, so it was added for release 5.0 to both the input and output. (It
makes no difference on Unix-like systems.) Later I was told that it is wrong
for the input on Windows. I've now abstracted the modes into two macros that
are set here, to make it easier to fiddle with them, and removed "b" from the
input mode under Windows. */
#if defined(_WIN32) || defined(WIN32)
#include <io.h> /* For _setmode() */
#include <fcntl.h> /* For _O_BINARY */
#define INPUT_MODE "r"
#define OUTPUT_MODE "wb"
#else
#include <sys/time.h> /* These two includes are needed */
#include <sys/resource.h> /* for setrlimit(). */
#define INPUT_MODE "rb"
#define OUTPUT_MODE "wb"
#endif
/* We have to include pcre_internal.h because we need the internal info for
displaying the results of pcre_study() and we also need to know about the
internal macros, structures, and other internal data values; pcretest has
"inside information" compared to a program that strictly follows the PCRE API.
Although pcre_internal.h does itself include pcre.h, we explicitly include it
here before pcre_internal.h so that the PCRE_EXP_xxx macros get set
appropriately for an application, not for building PCRE. */
#include "pcre.h"
#include "pcre_internal.h"
/* We need access to the data tables that PCRE uses. So as not to have to keep
two copies, we include the source file here, changing the names of the external
symbols to prevent clashes. */
#define _pcre_utf8_table1 utf8_table1
#define _pcre_utf8_table1_size utf8_table1_size
#define _pcre_utf8_table2 utf8_table2
#define _pcre_utf8_table3 utf8_table3
#define _pcre_utf8_table4 utf8_table4
#define _pcre_utt utt
#define _pcre_utt_size utt_size
#define _pcre_utt_names utt_names
#define _pcre_OP_lengths OP_lengths
#include "pcre_tables.c"
/* We also need the pcre_printint() function for printing out compiled
patterns. This function is in a separate file so that it can be included in
pcre_compile.c when that module is compiled with debugging enabled.
The definition of the macro PRINTABLE, which determines whether to print an
output character as-is or as a hex value when showing compiled patterns, is
contained in this file. We uses it here also, in cases when the locale has not
been explicitly changed, so as to get consistent output from systems that
differ in their output from isprint() even in the "C" locale. */
#include "pcre_printint.src"
#define PRINTHEX(c) (locale_set? isprint(c) : PRINTABLE(c))
/* It is possible to compile this test program without including support for
testing the POSIX interface, though this is not available via the standard
Makefile. */
#if !defined NOPOSIX
#include "pcreposix.h"
#endif
/* It is also possible, for the benefit of the version currently imported into
Exim, to build pcretest without support for UTF8 (define NOUTF8), without the
interface to the DFA matcher (NODFA), and without the doublecheck of the old
"info" function (define NOINFOCHECK). In fact, we automatically cut out the
UTF8 support if PCRE is built without it. */
#ifndef SUPPORT_UTF8
#ifndef NOUTF8
#define NOUTF8
#endif
#endif
/* Other parameters */
#ifndef CLOCKS_PER_SEC
#ifdef CLK_TCK
#define CLOCKS_PER_SEC CLK_TCK
#else
#define CLOCKS_PER_SEC 100
#endif
#endif
/* This is the default loop count for timing. */
#define LOOPREPEAT 500000
/* Static variables */
static FILE *outfile;
static int log_store = 0;
static int callout_count;
static int callout_extra;
static int callout_fail_count;
static int callout_fail_id;
static int debug_lengths;
static int first_callout;
static int locale_set = 0;
static int show_malloc;
static int use_utf8;
static size_t gotten_store;
/* The buffers grow automatically if very long input lines are encountered. */
static int buffer_size = 50000;
static uschar *buffer = NULL;
static uschar *dbuffer = NULL;
static uschar *pbuffer = NULL;
/*************************************************
* Read or extend an input line *
*************************************************/
/* Input lines are read into buffer, but both patterns and data lines can be
continued over multiple input lines. In addition, if the buffer fills up, we
want to automatically expand it so as to be able to handle extremely large
lines that are needed for certain stress tests. When the input buffer is
expanded, the other two buffers must also be expanded likewise, and the
contents of pbuffer, which are a copy of the input for callouts, must be
preserved (for when expansion happens for a data line). This is not the most
optimal way of handling this, but hey, this is just a test program!
Arguments:
f the file to read
start where in buffer to start (this *must* be within buffer)
Returns: pointer to the start of new data
could be a copy of start, or could be moved
NULL if no data read and EOF reached
*/
static uschar *
extend_inputline(FILE *f, uschar *start)
{
uschar *here = start;
for (;;)
{
int rlen = buffer_size - (here - buffer);
if (rlen > 1000)
{
int dlen;
if (fgets((char *)here, rlen, f) == NULL)
return (here == start)? NULL : start;
dlen = (int)strlen((char *)here);
if (dlen > 0 && here[dlen - 1] == '\n') return start;
here += dlen;
}
else
{
int new_buffer_size = 2*buffer_size;
uschar *new_buffer = (unsigned char *)malloc(new_buffer_size);
uschar *new_dbuffer = (unsigned char *)malloc(new_buffer_size);
uschar *new_pbuffer = (unsigned char *)malloc(new_buffer_size);
if (new_buffer == NULL || new_dbuffer == NULL || new_pbuffer == NULL)
{
fprintf(stderr, "pcretest: malloc(%d) failed\n", new_buffer_size);
exit(1);
}
memcpy(new_buffer, buffer, buffer_size);
memcpy(new_pbuffer, pbuffer, buffer_size);
buffer_size = new_buffer_size;
start = new_buffer + (start - buffer);
here = new_buffer + (here - buffer);
free(buffer);
free(dbuffer);
free(pbuffer);
buffer = new_buffer;
dbuffer = new_dbuffer;
pbuffer = new_pbuffer;
}
}
return NULL; /* Control never gets here */
}
/*************************************************
* Read number from string *
*************************************************/
/* We don't use strtoul() because SunOS4 doesn't have it. Rather than mess
around with conditional compilation, just do the job by hand. It is only used
for unpicking arguments, so just keep it simple.
Arguments:
str string to be converted
endptr where to put the end pointer
Returns: the unsigned long
*/
static int
get_value(unsigned char *str, unsigned char **endptr)
{
int result = 0;
while(*str != 0 && isspace(*str)) str++;
while (isdigit(*str)) result = result * 10 + (int)(*str++ - '0');
*endptr = str;
return(result);
}
/*************************************************
* Convert UTF-8 string to value *
*************************************************/
/* This function takes one or more bytes that represents a UTF-8 character,
and returns the value of the character.
Argument:
utf8bytes a pointer to the byte vector
vptr a pointer to an int to receive the value
Returns: > 0 => the number of bytes consumed
-6 to 0 => malformed UTF-8 character at offset = (-return)
*/
#if !defined NOUTF8
static int
utf82ord(unsigned char *utf8bytes, int *vptr)
{
int c = *utf8bytes++;
int d = c;
int i, j, s;
for (i = -1; i < 6; i++) /* i is number of additional bytes */
{
if ((d & 0x80) == 0) break;
d <<= 1;
}
if (i == -1) { *vptr = c; return 1; } /* ascii character */
if (i == 0 || i == 6) return 0; /* invalid UTF-8 */
/* i now has a value in the range 1-5 */
s = 6*i;
d = (c & utf8_table3[i]) << s;
for (j = 0; j < i; j++)
{
c = *utf8bytes++;
if ((c & 0xc0) != 0x80) return -(j+1);
s -= 6;
d |= (c & 0x3f) << s;
}
/* Check that encoding was the correct unique one */
for (j = 0; j < utf8_table1_size; j++)
if (d <= utf8_table1[j]) break;
if (j != i) return -(i+1);
/* Valid value */
*vptr = d;
return i+1;
}
#endif
/*************************************************
* Convert character value to UTF-8 *
*************************************************/
/* This function takes an integer value in the range 0 - 0x7fffffff
and encodes it as a UTF-8 character in 0 to 6 bytes.
Arguments:
cvalue the character value
utf8bytes pointer to buffer for result - at least 6 bytes long
Returns: number of characters placed in the buffer
*/
#if !defined NOUTF8
static int
ord2utf8(int cvalue, uschar *utf8bytes)
{
register int i, j;
for (i = 0; i < utf8_table1_size; i++)
if (cvalue <= utf8_table1[i]) break;
utf8bytes += i;
for (j = i; j > 0; j--)
{
*utf8bytes-- = 0x80 | (cvalue & 0x3f);
cvalue >>= 6;
}
*utf8bytes = utf8_table2[i] | cvalue;
return i + 1;
}
#endif
/*************************************************
* Print character string *
*************************************************/
/* Character string printing function. Must handle UTF-8 strings in utf8
mode. Yields number of characters printed. If handed a NULL file, just counts
chars without printing. */
static int pchars(unsigned char *p, int length, FILE *f)
{
int c = 0;
int yield = 0;
while (length-- > 0)
{
#if !defined NOUTF8
if (use_utf8)
{
int rc = utf82ord(p, &c);
if (rc > 0 && rc <= length + 1) /* Mustn't run over the end */
{
length -= rc - 1;
p += rc;
if (PRINTHEX(c))
{
if (f != NULL) fprintf(f, "%c", c);
yield++;
}
else
{
int n = 4;
if (f != NULL) fprintf(f, "\\x{%02x}", c);
yield += (n <= 0x000000ff)? 2 :
(n <= 0x00000fff)? 3 :
(n <= 0x0000ffff)? 4 :
(n <= 0x000fffff)? 5 : 6;
}
continue;
}
}
#endif
/* Not UTF-8, or malformed UTF-8 */
c = *p++;
if (PRINTHEX(c))
{
if (f != NULL) fprintf(f, "%c", c);
yield++;
}
else
{
if (f != NULL) fprintf(f, "\\x%02x", c);
yield += 4;
}
}
return yield;
}
/*************************************************
* Callout function *
*************************************************/
/* Called from PCRE as a result of the (?C) item. We print out where we are in
the match. Yield zero unless more callouts than the fail count, or the callout
data is not zero. */
static int callout(pcre_callout_block *cb)
{
FILE *f = (first_callout | callout_extra)? outfile : NULL;
int i, pre_start, post_start, subject_length;
if (callout_extra)
{
fprintf(f, "Callout %d: last capture = %d\n",
cb->callout_number, cb->capture_last);
for (i = 0; i < cb->capture_top * 2; i += 2)
{
if (cb->offset_vector[i] < 0)
fprintf(f, "%2d: <unset>\n", i/2);
else
{
fprintf(f, "%2d: ", i/2);
(void)pchars((unsigned char *)cb->subject + cb->offset_vector[i],
cb->offset_vector[i+1] - cb->offset_vector[i], f);
fprintf(f, "\n");
}
}
}
/* Re-print the subject in canonical form, the first time or if giving full
datails. On subsequent calls in the same match, we use pchars just to find the
printed lengths of the substrings. */
if (f != NULL) fprintf(f, "--->");
pre_start = pchars((unsigned char *)cb->subject, cb->start_match, f);
post_start = pchars((unsigned char *)(cb->subject + cb->start_match),
cb->current_position - cb->start_match, f);
subject_length = pchars((unsigned char *)cb->subject, cb->subject_length, NULL);
(void)pchars((unsigned char *)(cb->subject + cb->current_position),
cb->subject_length - cb->current_position, f);
if (f != NULL) fprintf(f, "\n");
/* Always print appropriate indicators, with callout number if not already
shown. For automatic callouts, show the pattern offset. */
if (cb->callout_number == 255)
{
fprintf(outfile, "%+3d ", cb->pattern_position);
if (cb->pattern_position > 99) fprintf(outfile, "\n ");
}
else
{
if (callout_extra) fprintf(outfile, " ");
else fprintf(outfile, "%3d ", cb->callout_number);
}
for (i = 0; i < pre_start; i++) fprintf(outfile, " ");
fprintf(outfile, "^");
if (post_start > 0)
{
for (i = 0; i < post_start - 1; i++) fprintf(outfile, " ");
fprintf(outfile, "^");
}
for (i = 0; i < subject_length - pre_start - post_start + 4; i++)
fprintf(outfile, " ");
fprintf(outfile, "%.*s", (cb->next_item_length == 0)? 1 : cb->next_item_length,
pbuffer + cb->pattern_position);
fprintf(outfile, "\n");
first_callout = 0;
if (cb->callout_data != NULL)
{
int callout_data = *((int *)(cb->callout_data));
if (callout_data != 0)
{
fprintf(outfile, "Callout data = %d\n", callout_data);
return callout_data;
}
}
return (cb->callout_number != callout_fail_id)? 0 :
(++callout_count >= callout_fail_count)? 1 : 0;
}
/*************************************************
* Local malloc functions *
*************************************************/
/* Alternative malloc function, to test functionality and show the size of the
compiled re. */
static void *new_malloc(size_t size)
{
void *block = malloc(size);
gotten_store = size;
if (show_malloc)
fprintf(outfile, "malloc %3d %p\n", (int)size, block);
return block;
}
static void new_free(void *block)
{
if (show_malloc)
fprintf(outfile, "free %p\n", block);
free(block);
}
/* For recursion malloc/free, to test stacking calls */
static void *stack_malloc(size_t size)
{
void *block = malloc(size);
if (show_malloc)
fprintf(outfile, "stack_malloc %3d %p\n", (int)size, block);
return block;
}
static void stack_free(void *block)
{
if (show_malloc)
fprintf(outfile, "stack_free %p\n", block);
free(block);
}
/*************************************************
* Call pcre_fullinfo() *
*************************************************/
/* Get one piece of information from the pcre_fullinfo() function */
static void new_info(pcre *re, pcre_extra *study, int option, void *ptr)
{
int rc;
if ((rc = pcre_fullinfo(re, study, option, ptr)) < 0)
fprintf(outfile, "Error %d from pcre_fullinfo(%d)\n", rc, option);
}
/*************************************************
* Byte flipping function *
*************************************************/
static unsigned long int
byteflip(unsigned long int value, int n)
{
if (n == 2) return ((value & 0x00ff) << 8) | ((value & 0xff00) >> 8);
return ((value & 0x000000ff) << 24) |
((value & 0x0000ff00) << 8) |
((value & 0x00ff0000) >> 8) |
((value & 0xff000000) >> 24);
}
/*************************************************
* Check match or recursion limit *
*************************************************/
static int
check_match_limit(pcre *re, pcre_extra *extra, uschar *bptr, int len,
int start_offset, int options, int *use_offsets, int use_size_offsets,
int flag, unsigned long int *limit, int errnumber, const char *msg)
{
int count;
int min = 0;
int mid = 64;
int max = -1;
extra->flags |= flag;
for (;;)
{
*limit = mid;
count = pcre_exec(re, extra, (char *)bptr, len, start_offset, options,
use_offsets, use_size_offsets);
if (count == errnumber)
{
/* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
min = mid;
mid = (mid == max - 1)? max : (max > 0)? (min + max)/2 : mid*2;
}
else if (count >= 0 || count == PCRE_ERROR_NOMATCH ||
count == PCRE_ERROR_PARTIAL)
{
if (mid == min + 1)
{
fprintf(outfile, "Minimum %s limit = %d\n", msg, mid);
break;
}
/* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
max = mid;
mid = (min + mid)/2;
}
else break; /* Some other error */
}
extra->flags &= ~flag;
return count;
}
/*************************************************
* Case-independent strncmp() function *
*************************************************/
/*
Arguments:
s first string
t second string
n number of characters to compare
Returns: < 0, = 0, or > 0, according to the comparison
*/
static int
strncmpic(uschar *s, uschar *t, int n)
{
while (n--)
{
int c = tolower(*s++) - tolower(*t++);
if (c) return c;
}
return 0;
}
/*************************************************
* Check newline indicator *
*************************************************/
/* This is used both at compile and run-time to check for <xxx> escapes, where
xxx is LF, CR, CRLF, ANYCRLF, or ANY. Print a message and return 0 if there is
no match.
Arguments:
p points after the leading '<'
f file for error message
Returns: appropriate PCRE_NEWLINE_xxx flags, or 0
*/
static int
check_newline(uschar *p, FILE *f)
{
if (strncmpic(p, (uschar *)"cr>", 3) == 0) return PCRE_NEWLINE_CR;
if (strncmpic(p, (uschar *)"lf>", 3) == 0) return PCRE_NEWLINE_LF;
if (strncmpic(p, (uschar *)"crlf>", 5) == 0) return PCRE_NEWLINE_CRLF;
if (strncmpic(p, (uschar *)"anycrlf>", 8) == 0) return PCRE_NEWLINE_ANYCRLF;
if (strncmpic(p, (uschar *)"any>", 4) == 0) return PCRE_NEWLINE_ANY;
if (strncmpic(p, (uschar *)"bsr_anycrlf>", 12) == 0) return PCRE_BSR_ANYCRLF;
if (strncmpic(p, (uschar *)"bsr_unicode>", 12) == 0) return PCRE_BSR_UNICODE;
fprintf(f, "Unknown newline type at: <%s\n", p);
return 0;
}
/*************************************************
* Usage function *
*************************************************/
static void
usage(void)
{
printf("Usage: pcretest [options] [<input> [<output>]]\n");
printf(" -b show compiled code (bytecode)\n");
printf(" -C show PCRE compile-time options and exit\n");
printf(" -d debug: show compiled code and information (-b and -i)\n");
#if !defined NODFA
printf(" -dfa force DFA matching for all subjects\n");
#endif
printf(" -help show usage information\n");
printf(" -i show information about compiled patterns\n"
" -m output memory used information\n"
" -o <n> set size of offsets vector to <n>\n");
#if !defined NOPOSIX
printf(" -p use POSIX interface\n");
#endif
printf(" -q quiet: do not output PCRE version number at start\n");
printf(" -S <n> set stack size to <n> megabytes\n");
printf(" -s output store (memory) used information\n"
" -t time compilation and execution\n");
printf(" -t <n> time compilation and execution, repeating <n> times\n");
printf(" -tm time execution (matching) only\n");
printf(" -tm <n> time execution (matching) only, repeating <n> times\n");
}
/*************************************************
* Main Program *
*************************************************/
/* Read lines from named file or stdin and write to named file or stdout; lines
consist of a regular expression, in delimiters and optionally followed by
options, followed by a set of test data, terminated by an empty line. */
int main(int argc, char **argv)
{
FILE *infile = stdin;
int options = 0;
int study_options = 0;
int op = 1;
int timeit = 0;
int timeitm = 0;
int showinfo = 0;
int showstore = 0;
int quiet = 0;
int size_offsets = 45;
int size_offsets_max;
int *offsets = NULL;
#if !defined NOPOSIX
int posix = 0;
#endif
int debug = 0;
int done = 0;
int all_use_dfa = 0;
int yield = 0;
int stack_size;
/* These vectors store, end-to-end, a list of captured substring names. Assume
that 1024 is plenty long enough for the few names we'll be testing. */
uschar copynames[1024];
uschar getnames[1024];
uschar *copynamesptr;
uschar *getnamesptr;
/* Get buffers from malloc() so that Electric Fence will check their misuse
when I am debugging. They grow automatically when very long lines are read. */
buffer = (unsigned char *)malloc(buffer_size);
dbuffer = (unsigned char *)malloc(buffer_size);
pbuffer = (unsigned char *)malloc(buffer_size);
/* The outfile variable is static so that new_malloc can use it. */
outfile = stdout;
/* The following _setmode() stuff is some Windows magic that tells its runtime
library to translate CRLF into a single LF character. At least, that's what
I've been told: never having used Windows I take this all on trust. Originally
it set 0x8000, but then I was advised that _O_BINARY was better. */
#if defined(_WIN32) || defined(WIN32)
_setmode( _fileno( stdout ), _O_BINARY );
#endif
/* Scan options */
while (argc > 1 && argv[op][0] == '-')
{
unsigned char *endptr;
if (strcmp(argv[op], "-s") == 0 || strcmp(argv[op], "-m") == 0)
showstore = 1;
else if (strcmp(argv[op], "-q") == 0) quiet = 1;
else if (strcmp(argv[op], "-b") == 0) debug = 1;
else if (strcmp(argv[op], "-i") == 0) showinfo = 1;
else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;
#if !defined NODFA
else if (strcmp(argv[op], "-dfa") == 0) all_use_dfa = 1;
#endif
else if (strcmp(argv[op], "-o") == 0 && argc > 2 &&
((size_offsets = get_value((unsigned char *)argv[op+1], &endptr)),
*endptr == 0))
{
op++;
argc--;
}
else if (strcmp(argv[op], "-t") == 0 || strcmp(argv[op], "-tm") == 0)
{
int both = argv[op][2] == 0;
int temp;
if (argc > 2 && (temp = get_value((unsigned char *)argv[op+1], &endptr),
*endptr == 0))
{
timeitm = temp;
op++;
argc--;
}
else timeitm = LOOPREPEAT;
if (both) timeit = timeitm;
}
else if (strcmp(argv[op], "-S") == 0 && argc > 2 &&
((stack_size = get_value((unsigned char *)argv[op+1], &endptr)),
*endptr == 0))
{
#if defined(_WIN32) || defined(WIN32)
printf("PCRE: -S not supported on this OS\n");
exit(1);
#else
int rc;
struct rlimit rlim;
getrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = stack_size * 1024 * 1024;
rc = setrlimit(RLIMIT_STACK, &rlim);
if (rc != 0)
{
printf("PCRE: setrlimit() failed with error %d\n", rc);
exit(1);
}
op++;
argc--;
#endif
}
#if !defined NOPOSIX
else if (strcmp(argv[op], "-p") == 0) posix = 1;
#endif
else if (strcmp(argv[op], "-C") == 0)
{
int rc;
printf("PCRE version %s\n", pcre_version());
printf("Compiled with\n");
(void)pcre_config(PCRE_CONFIG_UTF8, &rc);
printf(" %sUTF-8 support\n", rc? "" : "No ");
(void)pcre_config(PCRE_CONFIG_UNICODE_PROPERTIES, &rc);
printf(" %sUnicode properties support\n", rc? "" : "No ");
(void)pcre_config(PCRE_CONFIG_NEWLINE, &rc);
printf(" Newline sequence is %s\n", (rc == '\r')? "CR" :
(rc == '\n')? "LF" : (rc == ('\r'<<8 | '\n'))? "CRLF" :
(rc == -2)? "ANYCRLF" :
(rc == -1)? "ANY" : "???");
(void)pcre_config(PCRE_CONFIG_BSR, &rc);
printf(" \\R matches %s\n", rc? "CR, LF, or CRLF only" :
"all Unicode newlines");
(void)pcre_config(PCRE_CONFIG_LINK_SIZE, &rc);
printf(" Internal link size = %d\n", rc);
(void)pcre_config(PCRE_CONFIG_POSIX_MALLOC_THRESHOLD, &rc);
printf(" POSIX malloc threshold = %d\n", rc);
(void)pcre_config(PCRE_CONFIG_MATCH_LIMIT, &rc);
printf(" Default match limit = %d\n", rc);
(void)pcre_config(PCRE_CONFIG_MATCH_LIMIT_RECURSION, &rc);
printf(" Default recursion depth limit = %d\n", rc);
(void)pcre_config(PCRE_CONFIG_STACKRECURSE, &rc);
printf(" Match recursion uses %s\n", rc? "stack" : "heap");
goto EXIT;
}
else if (strcmp(argv[op], "-help") == 0 ||
strcmp(argv[op], "--help") == 0)
{
usage();
goto EXIT;
}
else
{
printf("** Unknown or malformed option %s\n", argv[op]);
usage();
yield = 1;
goto EXIT;
}
op++;
argc--;
}
/* Get the store for the offsets vector, and remember what it was */
size_offsets_max = size_offsets;
offsets = (int *)malloc(size_offsets_max * sizeof(int));
if (offsets == NULL)
{
printf("** Failed to get %d bytes of memory for offsets vector\n",
(int)(size_offsets_max * sizeof(int)));
yield = 1;
goto EXIT;
}
/* Sort out the input and output files */
if (argc > 1)
{
infile = fopen(argv[op], INPUT_MODE);
if (infile == NULL)
{
printf("** Failed to open %s\n", argv[op]);
yield = 1;
goto EXIT;
}
}
if (argc > 2)
{
outfile = fopen(argv[op+1], OUTPUT_MODE);
if (outfile == NULL)
{
printf("** Failed to open %s\n", argv[op+1]);
yield = 1;
goto EXIT;
}
}
/* Set alternative malloc function */
pcre_malloc = new_malloc;
pcre_free = new_free;
pcre_stack_malloc = stack_malloc;
pcre_stack_free = stack_free;
/* Heading line unless quiet, then prompt for first regex if stdin */
if (!quiet) fprintf(outfile, "PCRE version %s\n\n", pcre_version());
/* Main loop */
while (!done)
{
pcre *re = NULL;
pcre_extra *extra = NULL;
#if !defined NOPOSIX /* There are still compilers that require no indent */
regex_t preg;
int do_posix = 0;
#endif
const char *error;
unsigned char *p, *pp, *ppp;
unsigned char *to_file = NULL;
const unsigned char *tables = NULL;
unsigned long int true_size, true_study_size = 0;
size_t size, regex_gotten_store;
int do_study = 0;
int do_debug = debug;
int do_G = 0;
int do_g = 0;
int do_showinfo = showinfo;
int do_showrest = 0;
int do_flip = 0;
int erroroffset, len, delimiter, poffset;
use_utf8 = 0;
debug_lengths = 1;
if (infile == stdin) printf(" re> ");
if (extend_inputline(infile, buffer) == NULL) break;
if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
fflush(outfile);
p = buffer;
while (isspace(*p)) p++;
if (*p == 0) continue;
/* See if the pattern is to be loaded pre-compiled from a file. */
if (*p == '<' && strchr((char *)(p+1), '<') == NULL)
{
unsigned long int magic, get_options;
uschar sbuf[8];
FILE *f;
p++;
pp = p + (int)strlen((char *)p);
while (isspace(pp[-1])) pp--;
*pp = 0;
f = fopen((char *)p, "rb");
if (f == NULL)
{
fprintf(outfile, "Failed to open %s: %s\n", p, strerror(errno));
continue;
}
if (fread(sbuf, 1, 8, f) != 8) goto FAIL_READ;
true_size =
(sbuf[0] << 24) | (sbuf[1] << 16) | (sbuf[2] << 8) | sbuf[3];
true_study_size =
(sbuf[4] << 24) | (sbuf[5] << 16) | (sbuf[6] << 8) | sbuf[7];
re = (real_pcre *)new_malloc(true_size);
regex_gotten_store = gotten_store;
if (fread(re, 1, true_size, f) != true_size) goto FAIL_READ;
magic = ((real_pcre *)re)->magic_number;
if (magic != MAGIC_NUMBER)
{
if (byteflip(magic, sizeof(magic)) == MAGIC_NUMBER)
{
do_flip = 1;
}
else
{
fprintf(outfile, "Data in %s is not a compiled PCRE regex\n", p);
fclose(f);
continue;
}
}
fprintf(outfile, "Compiled regex%s loaded from %s\n",
do_flip? " (byte-inverted)" : "", p);
/* Need to know if UTF-8 for printing data strings */
new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
use_utf8 = (get_options & PCRE_UTF8) != 0;
/* Now see if there is any following study data */
if (true_study_size != 0)
{
pcre_study_data *psd;
extra = (pcre_extra *)new_malloc(sizeof(pcre_extra) + true_study_size);
extra->flags = PCRE_EXTRA_STUDY_DATA;
psd = (pcre_study_data *)(((char *)extra) + sizeof(pcre_extra));
extra->study_data = psd;
if (fread(psd, 1, true_study_size, f) != true_study_size)
{
FAIL_READ:
fprintf(outfile, "Failed to read data from %s\n", p);
if (extra != NULL) new_free(extra);
if (re != NULL) new_free(re);
fclose(f);
continue;
}
fprintf(outfile, "Study data loaded from %s\n", p);
do_study = 1; /* To get the data output if requested */
}
else fprintf(outfile, "No study data\n");
fclose(f);
goto SHOW_INFO;
}
/* In-line pattern (the usual case). Get the delimiter and seek the end of
the pattern; if is isn't complete, read more. */
delimiter = *p++;
if (isalnum(delimiter) || delimiter == '\\')
{
fprintf(outfile, "** Delimiter must not be alphameric or \\\n");
goto SKIP_DATA;
}
pp = p;
poffset = p - buffer;
for(;;)
{
while (*pp != 0)
{
if (*pp == '\\' && pp[1] != 0) pp++;
else if (*pp == delimiter) break;
pp++;
}
if (*pp != 0) break;
if (infile == stdin) printf(" > ");
if ((pp = extend_inputline(infile, pp)) == NULL)
{
fprintf(outfile, "** Unexpected EOF\n");
done = 1;
goto CONTINUE;
}
if (infile != stdin) fprintf(outfile, "%s", (char *)pp);
}
/* The buffer may have moved while being extended; reset the start of data
pointer to the correct relative point in the buffer. */
p = buffer + poffset;
/* If the first character after the delimiter is backslash, make
the pattern end with backslash. This is purely to provide a way
of testing for the error message when a pattern ends with backslash. */
if (pp[1] == '\\') *pp++ = '\\';
/* Terminate the pattern at the delimiter, and save a copy of the pattern
for callouts. */
*pp++ = 0;
strcpy((char *)pbuffer, (char *)p);
/* Look for options after final delimiter */
options = 0;
study_options = 0;
log_store = showstore; /* default from command line */
while (*pp != 0)
{
switch (*pp++)
{
case 'f': options |= PCRE_FIRSTLINE; break;
case 'g': do_g = 1; break;
case 'i': options |= PCRE_CASELESS; break;
case 'm': options |= PCRE_MULTILINE; break;
case 's': options |= PCRE_DOTALL; break;
case 'x': options |= PCRE_EXTENDED; break;
case '+': do_showrest = 1; break;
case 'A': options |= PCRE_ANCHORED; break;
case 'B': do_debug = 1; break;
case 'C': options |= PCRE_AUTO_CALLOUT; break;
case 'D': do_debug = do_showinfo = 1; break;
case 'E': options |= PCRE_DOLLAR_ENDONLY; break;
case 'F': do_flip = 1; break;
case 'G': do_G = 1; break;
case 'I': do_showinfo = 1; break;
case 'J': options |= PCRE_DUPNAMES; break;
case 'M': log_store = 1; break;
case 'N': options |= PCRE_NO_AUTO_CAPTURE; break;
#if !defined NOPOSIX
case 'P': do_posix = 1; break;
#endif
case 'S': do_study = 1; break;
case 'U': options |= PCRE_UNGREEDY; break;
case 'X': options |= PCRE_EXTRA; break;
case 'Z': debug_lengths = 0; break;
case '8': options |= PCRE_UTF8; use_utf8 = 1; break;
case '?': options |= PCRE_NO_UTF8_CHECK; break;
case 'L':
ppp = pp;
/* The '\r' test here is so that it works on Windows. */
/* The '0' test is just in case this is an unterminated line. */
while (*ppp != 0 && *ppp != '\n' && *ppp != '\r' && *ppp != ' ') ppp++;
*ppp = 0;
if (setlocale(LC_CTYPE, (const char *)pp) == NULL)
{
fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);
goto SKIP_DATA;
}
locale_set = 1;
tables = pcre_maketables();
pp = ppp;
break;
case '>':
to_file = pp;
while (*pp != 0) pp++;
while (isspace(pp[-1])) pp--;
*pp = 0;
break;
case '<':
{
int x = check_newline(pp, outfile);
if (x == 0) goto SKIP_DATA;
options |= x;
while (*pp++ != '>');
}
break;
case '\r': /* So that it works in Windows */
case '\n':
case ' ':
break;
default:
fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);
goto SKIP_DATA;
}
}
/* Handle compiling via the POSIX interface, which doesn't support the
timing, showing, or debugging options, nor the ability to pass over
local character tables. */
#if !defined NOPOSIX
if (posix || do_posix)
{
int rc;
int cflags = 0;
if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;
if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;
if ((options & PCRE_DOTALL) != 0) cflags |= REG_DOTALL;
if ((options & PCRE_NO_AUTO_CAPTURE) != 0) cflags |= REG_NOSUB;
if ((options & PCRE_UTF8) != 0) cflags |= REG_UTF8;
rc = regcomp(&preg, (char *)p, cflags);
/* Compilation failed; go back for another re, skipping to blank line
if non-interactive. */
if (rc != 0)
{
(void)regerror(rc, &preg, (char *)buffer, buffer_size);
fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
goto SKIP_DATA;
}
}
/* Handle compiling via the native interface */
else
#endif /* !defined NOPOSIX */
{
if (timeit > 0)
{
register int i;
clock_t time_taken;
clock_t start_time = clock();
for (i = 0; i < timeit; i++)
{
re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
if (re != NULL) free(re);
}
time_taken = clock() - start_time;
fprintf(outfile, "Compile time %.4f milliseconds\n",
(((double)time_taken * 1000.0) / (double)timeit) /
(double)CLOCKS_PER_SEC);
}
re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
/* Compilation failed; go back for another re, skipping to blank line
if non-interactive. */
if (re == NULL)
{
fprintf(outfile, "Failed: %s at offset %d\n", error, erroroffset);
SKIP_DATA:
if (infile != stdin)
{
for (;;)
{
if (extend_inputline(infile, buffer) == NULL)
{
done = 1;
goto CONTINUE;
}
len = (int)strlen((char *)buffer);
while (len > 0 && isspace(buffer[len-1])) len--;
if (len == 0) break;
}
fprintf(outfile, "\n");
}
goto CONTINUE;
}
/* Compilation succeeded; print data if required. There are now two
info-returning functions. The old one has a limited interface and
returns only limited data. Check that it agrees with the newer one. */
if (log_store)
fprintf(outfile, "Memory allocation (code space): %d\n",
(int)(gotten_store -
sizeof(real_pcre) -
((real_pcre *)re)->name_count * ((real_pcre *)re)->name_entry_size));
/* Extract the size for possible writing before possibly flipping it,
and remember the store that was got. */
true_size = ((real_pcre *)re)->size;
regex_gotten_store = gotten_store;
/* If /S was present, study the regexp to generate additional info to
help with the matching. */
if (do_study)
{
if (timeit > 0)
{
register int i;
clock_t time_taken;
clock_t start_time = clock();
for (i = 0; i < timeit; i++)
extra = pcre_study(re, study_options, &error);
time_taken = clock() - start_time;
if (extra != NULL) free(extra);
fprintf(outfile, " Study time %.4f milliseconds\n",
(((double)time_taken * 1000.0) / (double)timeit) /
(double)CLOCKS_PER_SEC);
}
extra = pcre_study(re, study_options, &error);
if (error != NULL)
fprintf(outfile, "Failed to study: %s\n", error);
else if (extra != NULL)
true_study_size = ((pcre_study_data *)(extra->study_data))->size;
}
/* If the 'F' option was present, we flip the bytes of all the integer
fields in the regex data block and the study block. This is to make it
possible to test PCRE's handling of byte-flipped patterns, e.g. those
compiled on a different architecture. */
if (do_flip)
{
real_pcre *rre = (real_pcre *)re;
rre->magic_number =
byteflip(rre->magic_number, sizeof(rre->magic_number));
rre->size = byteflip(rre->size, sizeof(rre->size));
rre->options = byteflip(rre->options, sizeof(rre->options));
rre->flags = (pcre_uint16)byteflip(rre->flags, sizeof(rre->flags));
rre->top_bracket =
(pcre_uint16)byteflip(rre->top_bracket, sizeof(rre->top_bracket));
rre->top_backref =
(pcre_uint16)byteflip(rre->top_backref, sizeof(rre->top_backref));
rre->first_byte =
(pcre_uint16)byteflip(rre->first_byte, sizeof(rre->first_byte));
rre->req_byte =
(pcre_uint16)byteflip(rre->req_byte, sizeof(rre->req_byte));
rre->name_table_offset = (pcre_uint16)byteflip(rre->name_table_offset,
sizeof(rre->name_table_offset));
rre->name_entry_size = (pcre_uint16)byteflip(rre->name_entry_size,
sizeof(rre->name_entry_size));
rre->name_count = (pcre_uint16)byteflip(rre->name_count,
sizeof(rre->name_count));
if (extra != NULL)
{
pcre_study_data *rsd = (pcre_study_data *)(extra->study_data);
rsd->size = byteflip(rsd->size, sizeof(rsd->size));
rsd->options = byteflip(rsd->options, sizeof(rsd->options));
}
}
/* Extract information from the compiled data if required */
SHOW_INFO:
if (do_debug)
{
fprintf(outfile, "------------------------------------------------------------------\n");
pcre_printint(re, outfile, debug_lengths);
}
if (do_showinfo)
{
unsigned long int get_options, all_options;
#if !defined NOINFOCHECK
int old_first_char, old_options, old_count;
#endif
int count, backrefmax, first_char, need_char, okpartial, jchanged,
hascrorlf;
int nameentrysize, namecount;
const uschar *nametable;
new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
new_info(re, NULL, PCRE_INFO_SIZE, &size);
new_info(re, NULL, PCRE_INFO_CAPTURECOUNT, &count);
new_info(re, NULL, PCRE_INFO_BACKREFMAX, &backrefmax);
new_info(re, NULL, PCRE_INFO_FIRSTBYTE, &first_char);
new_info(re, NULL, PCRE_INFO_LASTLITERAL, &need_char);
new_info(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &nameentrysize);
new_info(re, NULL, PCRE_INFO_NAMECOUNT, &namecount);
new_info(re, NULL, PCRE_INFO_NAMETABLE, (void *)&nametable);
new_info(re, NULL, PCRE_INFO_OKPARTIAL, &okpartial);
new_info(re, NULL, PCRE_INFO_JCHANGED, &jchanged);
new_info(re, NULL, PCRE_INFO_HASCRORLF, &hascrorlf);
#if !defined NOINFOCHECK
old_count = pcre_info(re, &old_options, &old_first_char);
if (count < 0) fprintf(outfile,
"Error %d from pcre_info()\n", count);
else
{
if (old_count != count) fprintf(outfile,
"Count disagreement: pcre_fullinfo=%d pcre_info=%d\n", count,
old_count);
if (old_first_char != first_char) fprintf(outfile,
"First char disagreement: pcre_fullinfo=%d pcre_info=%d\n",
first_char, old_first_char);
if (old_options != (int)get_options) fprintf(outfile,
"Options disagreement: pcre_fullinfo=%ld pcre_info=%d\n",
get_options, old_options);
}
#endif
if (size != regex_gotten_store) fprintf(outfile,
"Size disagreement: pcre_fullinfo=%d call to malloc for %d\n",
(int)size, (int)regex_gotten_store);
fprintf(outfile, "Capturing subpattern count = %d\n", count);
if (backrefmax > 0)
fprintf(outfile, "Max back reference = %d\n", backrefmax);
if (namecount > 0)
{
fprintf(outfile, "Named capturing subpatterns:\n");
while (namecount-- > 0)
{
fprintf(outfile, " %s %*s%3d\n", nametable + 2,
nameentrysize - 3 - (int)strlen((char *)nametable + 2), "",
GET2(nametable, 0));
nametable += nameentrysize;
}
}
if (!okpartial) fprintf(outfile, "Partial matching not supported\n");
if (hascrorlf) fprintf(outfile, "Contains explicit CR or LF match\n");
all_options = ((real_pcre *)re)->options;
if (do_flip) all_options = byteflip(all_options, sizeof(all_options));
if (get_options == 0) fprintf(outfile, "No options\n");
else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
((get_options & PCRE_ANCHORED) != 0)? " anchored" : "",
((get_options & PCRE_CASELESS) != 0)? " caseless" : "",
((get_options & PCRE_EXTENDED) != 0)? " extended" : "",
((get_options & PCRE_MULTILINE) != 0)? " multiline" : "",
((get_options & PCRE_FIRSTLINE) != 0)? " firstline" : "",
((get_options & PCRE_DOTALL) != 0)? " dotall" : "",
((get_options & PCRE_BSR_ANYCRLF) != 0)? " bsr_anycrlf" : "",
((get_options & PCRE_BSR_UNICODE) != 0)? " bsr_unicode" : "",
((get_options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
((get_options & PCRE_EXTRA) != 0)? " extra" : "",
((get_options & PCRE_UNGREEDY) != 0)? " ungreedy" : "",
((get_options & PCRE_NO_AUTO_CAPTURE) != 0)? " no_auto_capture" : "",
((get_options & PCRE_UTF8) != 0)? " utf8" : "",
((get_options & PCRE_NO_UTF8_CHECK) != 0)? " no_utf8_check" : "",
((get_options & PCRE_DUPNAMES) != 0)? " dupnames" : "");
if (jchanged) fprintf(outfile, "Duplicate name status changes\n");
switch (get_options & PCRE_NEWLINE_BITS)
{
case PCRE_NEWLINE_CR:
fprintf(outfile, "Forced newline sequence: CR\n");
break;
case PCRE_NEWLINE_LF:
fprintf(outfile, "Forced newline sequence: LF\n");
break;
case PCRE_NEWLINE_CRLF:
fprintf(outfile, "Forced newline sequence: CRLF\n");
break;
case PCRE_NEWLINE_ANYCRLF:
fprintf(outfile, "Forced newline sequence: ANYCRLF\n");
break;
case PCRE_NEWLINE_ANY:
fprintf(outfile, "Forced newline sequence: ANY\n");
break;
default:
break;
}
if (first_char == -1)
{
fprintf(outfile, "First char at start or follows newline\n");
}
else if (first_char < 0)
{
fprintf(outfile, "No first char\n");
}
else
{
int ch = first_char & 255;
const char *caseless = ((first_char & REQ_CASELESS) == 0)?
"" : " (caseless)";
if (PRINTHEX(ch))
fprintf(outfile, "First char = \'%c\'%s\n", ch, caseless);
else
fprintf(outfile, "First char = %d%s\n", ch, caseless);
}
if (need_char < 0)
{
fprintf(outfile, "No need char\n");
}
else
{
int ch = need_char & 255;
const char *caseless = ((need_char & REQ_CASELESS) == 0)?
"" : " (caseless)";
if (PRINTHEX(ch))
fprintf(outfile, "Need char = \'%c\'%s\n", ch, caseless);
else
fprintf(outfile, "Need char = %d%s\n", ch, caseless);
}
/* Don't output study size; at present it is in any case a fixed
value, but it varies, depending on the computer architecture, and
so messes up the test suite. (And with the /F option, it might be
flipped.) */
if (do_study)
{
if (extra == NULL)
fprintf(outfile, "Study returned NULL\n");
else
{
uschar *start_bits = NULL;
new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits);
if (start_bits == NULL)
fprintf(outfile, "No starting byte set\n");
else
{
int i;
int c = 24;
fprintf(outfile, "Starting byte set: ");
for (i = 0; i < 256; i++)
{
if ((start_bits[i/8] & (1<<(i&7))) != 0)
{
if (c > 75)
{
fprintf(outfile, "\n ");
c = 2;
}
if (PRINTHEX(i) && i != ' ')
{
fprintf(outfile, "%c ", i);
c += 2;
}
else
{
fprintf(outfile, "\\x%02x ", i);
c += 5;
}
}
}
fprintf(outfile, "\n");
}
}
}
}
/* If the '>' option was present, we write out the regex to a file, and
that is all. The first 8 bytes of the file are the regex length and then
the study length, in big-endian order. */
if (to_file != NULL)
{
FILE *f = fopen((char *)to_file, "wb");
if (f == NULL)
{
fprintf(outfile, "Unable to open %s: %s\n", to_file, strerror(errno));
}
else
{
uschar sbuf[8];
sbuf[0] = (uschar)((true_size >> 24) & 255);
sbuf[1] = (uschar)((true_size >> 16) & 255);
sbuf[2] = (uschar)((true_size >> 8) & 255);
sbuf[3] = (uschar)((true_size) & 255);
sbuf[4] = (uschar)((true_study_size >> 24) & 255);
sbuf[5] = (uschar)((true_study_size >> 16) & 255);
sbuf[6] = (uschar)((true_study_size >> 8) & 255);
sbuf[7] = (uschar)((true_study_size) & 255);
if (fwrite(sbuf, 1, 8, f) < 8 ||
fwrite(re, 1, true_size, f) < true_size)
{
fprintf(outfile, "Write error on %s: %s\n", to_file, strerror(errno));
}
else
{
fprintf(outfile, "Compiled regex written to %s\n", to_file);
if (extra != NULL)
{
if (fwrite(extra->study_data, 1, true_study_size, f) <
true_study_size)
{
fprintf(outfile, "Write error on %s: %s\n", to_file,
strerror(errno));
}
else fprintf(outfile, "Study data written to %s\n", to_file);
}
}
fclose(f);
}
new_free(re);
if (extra != NULL) new_free(extra);
if (tables != NULL) new_free((void *)tables);
continue; /* With next regex */
}
} /* End of non-POSIX compile */
/* Read data lines and test them */
for (;;)
{
uschar *q;
uschar *bptr;
int *use_offsets = offsets;
int use_size_offsets = size_offsets;
int callout_data = 0;
int callout_data_set = 0;
int count, c;
int copystrings = 0;
int find_match_limit = 0;
int getstrings = 0;
int getlist = 0;
int gmatched = 0;
int start_offset = 0;
int g_notempty = 0;
int use_dfa = 0;
options = 0;
*copynames = 0;
*getnames = 0;
copynamesptr = copynames;
getnamesptr = getnames;
pcre_callout = callout;
first_callout = 1;
callout_extra = 0;
callout_count = 0;
callout_fail_count = 999999;
callout_fail_id = -1;
show_malloc = 0;
if (extra != NULL) extra->flags &=
~(PCRE_EXTRA_MATCH_LIMIT|PCRE_EXTRA_MATCH_LIMIT_RECURSION);
len = 0;
for (;;)
{
if (infile == stdin) printf("data> ");
if (extend_inputline(infile, buffer + len) == NULL)
{
if (len > 0) break;
done = 1;
goto CONTINUE;
}
if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
len = (int)strlen((char *)buffer);
if (buffer[len-1] == '\n') break;
}
while (len > 0 && isspace(buffer[len-1])) len--;
buffer[len] = 0;
if (len == 0) break;
p = buffer;
while (isspace(*p)) p++;
bptr = q = dbuffer;
while ((c = *p++) != 0)
{
int i = 0;
int n = 0;
if (c == '\\') switch ((c = *p++))
{
case 'a': c = 7; break;
case 'b': c = '\b'; break;
case 'e': c = 27; break;
case 'f': c = '\f'; break;
case 'n': c = '\n'; break;
case 'r': c = '\r'; break;
case 't': c = '\t'; break;
case 'v': c = '\v'; break;
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
c -= '0';
while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
c = c * 8 + *p++ - '0';
#if !defined NOUTF8
if (use_utf8 && c > 255)
{
unsigned char buff8[8];
int ii, utn;
utn = ord2utf8(c, buff8);
for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
c = buff8[ii]; /* Last byte */
}
#endif
break;
case 'x':
/* Handle \x{..} specially - new Perl thing for utf8 */
#if !defined NOUTF8
if (*p == '{')
{
unsigned char *pt = p;
c = 0;
while (isxdigit(*(++pt)))
c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'W');
if (*pt == '}')
{
unsigned char buff8[8];
int ii, utn;
utn = ord2utf8(c, buff8);
for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
c = buff8[ii]; /* Last byte */
p = pt + 1;
break;
}
/* Not correct form; fall through */
}
#endif
/* Ordinary \x */
c = 0;
while (i++ < 2 && isxdigit(*p))
{
c = c * 16 + tolower(*p) - ((isdigit(*p))? '0' : 'W');
p++;
}
break;
case 0: /* \ followed by EOF allows for an empty line */
p--;
continue;
case '>':
while(isdigit(*p)) start_offset = start_offset * 10 + *p++ - '0';
continue;
case 'A': /* Option setting */
options |= PCRE_ANCHORED;
continue;
case 'B':
options |= PCRE_NOTBOL;
continue;
case 'C':
if (isdigit(*p)) /* Set copy string */
{
while(isdigit(*p)) n = n * 10 + *p++ - '0';
copystrings |= 1 << n;
}
else if (isalnum(*p))
{
uschar *npp = copynamesptr;
while (isalnum(*p)) *npp++ = *p++;
*npp++ = 0;
*npp = 0;
n = pcre_get_stringnumber(re, (char *)copynamesptr);
if (n < 0)
fprintf(outfile, "no parentheses with name \"%s\"\n", copynamesptr);
copynamesptr = npp;
}
else if (*p == '+')
{
callout_extra = 1;
p++;
}
else if (*p == '-')
{
pcre_callout = NULL;
p++;
}
else if (*p == '!')
{
callout_fail_id = 0;
p++;
while(isdigit(*p))
callout_fail_id = callout_fail_id * 10 + *p++ - '0';
callout_fail_count = 0;
if (*p == '!')
{
p++;
while(isdigit(*p))
callout_fail_count = callout_fail_count * 10 + *p++ - '0';
}
}
else if (*p == '*')
{
int sign = 1;
callout_data = 0;
if (*(++p) == '-') { sign = -1; p++; }
while(isdigit(*p))
callout_data = callout_data * 10 + *p++ - '0';
callout_data *= sign;
callout_data_set = 1;
}
continue;
#if !defined NODFA
case 'D':
#if !defined NOPOSIX
if (posix || do_posix)
printf("** Can't use dfa matching in POSIX mode: \\D ignored\n");
else
#endif
use_dfa = 1;
continue;
case 'F':
options |= PCRE_DFA_SHORTEST;
continue;
#endif
case 'G':
if (isdigit(*p))
{
while(isdigit(*p)) n = n * 10 + *p++ - '0';
getstrings |= 1 << n;
}
else if (isalnum(*p))
{
uschar *npp = getnamesptr;
while (isalnum(*p)) *npp++ = *p++;
*npp++ = 0;
*npp = 0;
n = pcre_get_stringnumber(re, (char *)getnamesptr);
if (n < 0)
fprintf(outfile, "no parentheses with name \"%s\"\n", getnamesptr);
getnamesptr = npp;
}
continue;
case 'L':
getlist = 1;
continue;
case 'M':
find_match_limit = 1;
continue;
case 'N':
options |= PCRE_NOTEMPTY;
continue;
case 'O':
while(isdigit(*p)) n = n * 10 + *p++ - '0';
if (n > size_offsets_max)
{
size_offsets_max = n;
free(offsets);
use_offsets = offsets = (int *)malloc(size_offsets_max * sizeof(int));
if (offsets == NULL)
{
printf("** Failed to get %d bytes of memory for offsets vector\n",
(int)(size_offsets_max * sizeof(int)));
yield = 1;
goto EXIT;
}
}
use_size_offsets = n;
if (n == 0) use_offsets = NULL; /* Ensures it can't write to it */
continue;
case 'P':
options |= PCRE_PARTIAL;
continue;
case 'Q':
while(isdigit(*p)) n = n * 10 + *p++ - '0';
if (extra == NULL)
{
extra = (pcre_extra *)malloc(sizeof(pcre_extra));
extra->flags = 0;
}
extra->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
extra->match_limit_recursion = n;
continue;
case 'q':
while(isdigit(*p)) n = n * 10 + *p++ - '0';
if (extra == NULL)
{
extra = (pcre_extra *)malloc(sizeof(pcre_extra));
extra->flags = 0;
}
extra->flags |= PCRE_EXTRA_MATCH_LIMIT;
extra->match_limit = n;
continue;
#if !defined NODFA
case 'R':
options |= PCRE_DFA_RESTART;
continue;
#endif
case 'S':
show_malloc = 1;
continue;
case 'Z':
options |= PCRE_NOTEOL;
continue;
case '?':
options |= PCRE_NO_UTF8_CHECK;
continue;
case '<':
{
int x = check_newline(p, outfile);
if (x == 0) goto NEXT_DATA;
options |= x;
while (*p++ != '>');
}
continue;
}
*q++ = c;
}
*q = 0;
len = q - dbuffer;
if ((all_use_dfa || use_dfa) && find_match_limit)
{
printf("**Match limit not relevant for DFA matching: ignored\n");
find_match_limit = 0;
}
/* Handle matching via the POSIX interface, which does not
support timing or playing with the match limit or callout data. */
#if !defined NOPOSIX
if (posix || do_posix)
{
int rc;
int eflags = 0;
regmatch_t *pmatch = NULL;
if (use_size_offsets > 0)
pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * use_size_offsets);
if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
rc = regexec(&preg, (const char *)bptr, use_size_offsets, pmatch, eflags);
if (rc != 0)
{
(void)regerror(rc, &preg, (char *)buffer, buffer_size);
fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
}
else if ((((const pcre *)preg.re_pcre)->options & PCRE_NO_AUTO_CAPTURE)
!= 0)
{
fprintf(outfile, "Matched with REG_NOSUB\n");
}
else
{
size_t i;
for (i = 0; i < (size_t)use_size_offsets; i++)
{
if (pmatch[i].rm_so >= 0)
{
fprintf(outfile, "%2d: ", (int)i);
(void)pchars(dbuffer + pmatch[i].rm_so,
pmatch[i].rm_eo - pmatch[i].rm_so, outfile);
fprintf(outfile, "\n");
if (i == 0 && do_showrest)
{
fprintf(outfile, " 0+ ");
(void)pchars(dbuffer + pmatch[i].rm_eo, len - pmatch[i].rm_eo,
outfile);
fprintf(outfile, "\n");
}
}
}
}
free(pmatch);
}
/* Handle matching via the native interface - repeats for /g and /G */
else
#endif /* !defined NOPOSIX */
for (;; gmatched++) /* Loop for /g or /G */
{
if (timeitm > 0)
{
register int i;
clock_t time_taken;
clock_t start_time = clock();
#if !defined NODFA
if (all_use_dfa || use_dfa)
{
int workspace[1000];
for (i = 0; i < timeitm; i++)
count = pcre_dfa_exec(re, NULL, (char *)bptr, len, start_offset,
options | g_notempty, use_offsets, use_size_offsets, workspace,
sizeof(workspace)/sizeof(int));
}
else
#endif
for (i = 0; i < timeitm; i++)
count = pcre_exec(re, extra, (char *)bptr, len,
start_offset, options | g_notempty, use_offsets, use_size_offsets);
time_taken = clock() - start_time;
fprintf(outfile, "Execute time %.4f milliseconds\n",
(((double)time_taken * 1000.0) / (double)timeitm) /
(double)CLOCKS_PER_SEC);
}
/* If find_match_limit is set, we want to do repeated matches with
varying limits in order to find the minimum value for the match limit and
for the recursion limit. */
if (find_match_limit)
{
if (extra == NULL)
{
extra = (pcre_extra *)malloc(sizeof(pcre_extra));
extra->flags = 0;
}
(void)check_match_limit(re, extra, bptr, len, start_offset,
options|g_notempty, use_offsets, use_size_offsets,
PCRE_EXTRA_MATCH_LIMIT, &(extra->match_limit),
PCRE_ERROR_MATCHLIMIT, "match()");
count = check_match_limit(re, extra, bptr, len, start_offset,
options|g_notempty, use_offsets, use_size_offsets,
PCRE_EXTRA_MATCH_LIMIT_RECURSION, &(extra->match_limit_recursion),
PCRE_ERROR_RECURSIONLIMIT, "match() recursion");
}
/* If callout_data is set, use the interface with additional data */
else if (callout_data_set)
{
if (extra == NULL)
{
extra = (pcre_extra *)malloc(sizeof(pcre_extra));
extra->flags = 0;
}
extra->flags |= PCRE_EXTRA_CALLOUT_DATA;
extra->callout_data = &callout_data;
count = pcre_exec(re, extra, (char *)bptr, len, start_offset,
options | g_notempty, use_offsets, use_size_offsets);
extra->flags &= ~PCRE_EXTRA_CALLOUT_DATA;
}
/* The normal case is just to do the match once, with the default
value of match_limit. */
#if !defined NODFA
else if (all_use_dfa || use_dfa)
{
int workspace[1000];
count = pcre_dfa_exec(re, NULL, (char *)bptr, len, start_offset,
options | g_notempty, use_offsets, use_size_offsets, workspace,
sizeof(workspace)/sizeof(int));
if (count == 0)
{
fprintf(outfile, "Matched, but too many subsidiary matches\n");
count = use_size_offsets/2;
}
}
#endif
else
{
count = pcre_exec(re, extra, (char *)bptr, len,
start_offset, options | g_notempty, use_offsets, use_size_offsets);
if (count == 0)
{
fprintf(outfile, "Matched, but too many substrings\n");
count = use_size_offsets/3;
}
}
/* Matched */
if (count >= 0)
{
int i, maxcount;
#if !defined NODFA
if (all_use_dfa || use_dfa) maxcount = use_size_offsets/2; else
#endif
maxcount = use_size_offsets/3;
/* This is a check against a lunatic return value. */
if (count > maxcount)
{
fprintf(outfile,
"** PCRE error: returned count %d is too big for offset size %d\n",
count, use_size_offsets);
count = use_size_offsets/3;
if (do_g || do_G)
{
fprintf(outfile, "** /%c loop abandoned\n", do_g? 'g' : 'G');
do_g = do_G = FALSE; /* Break g/G loop */
}
}
for (i = 0; i < count * 2; i += 2)
{
if (use_offsets[i] < 0)
fprintf(outfile, "%2d: <unset>\n", i/2);
else
{
fprintf(outfile, "%2d: ", i/2);
(void)pchars(bptr + use_offsets[i],
use_offsets[i+1] - use_offsets[i], outfile);
fprintf(outfile, "\n");
if (i == 0)
{
if (do_showrest)
{
fprintf(outfile, " 0+ ");
(void)pchars(bptr + use_offsets[i+1], len - use_offsets[i+1],
outfile);
fprintf(outfile, "\n");
}
}
}
}
for (i = 0; i < 32; i++)
{
if ((copystrings & (1 << i)) != 0)
{
char copybuffer[256];
int rc = pcre_copy_substring((char *)bptr, use_offsets, count,
i, copybuffer, sizeof(copybuffer));
if (rc < 0)
fprintf(outfile, "copy substring %d failed %d\n", i, rc);
else
fprintf(outfile, "%2dC %s (%d)\n", i, copybuffer, rc);
}
}
for (copynamesptr = copynames;
*copynamesptr != 0;
copynamesptr += (int)strlen((char*)copynamesptr) + 1)
{
char copybuffer[256];
int rc = pcre_copy_named_substring(re, (char *)bptr, use_offsets,
count, (char *)copynamesptr, copybuffer, sizeof(copybuffer));
if (rc < 0)
fprintf(outfile, "copy substring %s failed %d\n", copynamesptr, rc);
else
fprintf(outfile, " C %s (%d) %s\n", copybuffer, rc, copynamesptr);
}
for (i = 0; i < 32; i++)
{
if ((getstrings & (1 << i)) != 0)
{
const char *substring;
int rc = pcre_get_substring((char *)bptr, use_offsets, count,
i, &substring);
if (rc < 0)
fprintf(outfile, "get substring %d failed %d\n", i, rc);
else
{
fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
pcre_free_substring(substring);
}
}
}
for (getnamesptr = getnames;
*getnamesptr != 0;
getnamesptr += (int)strlen((char*)getnamesptr) + 1)
{
const char *substring;
int rc = pcre_get_named_substring(re, (char *)bptr, use_offsets,
count, (char *)getnamesptr, &substring);
if (rc < 0)
fprintf(outfile, "copy substring %s failed %d\n", getnamesptr, rc);
else
{
fprintf(outfile, " G %s (%d) %s\n", substring, rc, getnamesptr);
pcre_free_substring(substring);
}
}
if (getlist)
{
const char **stringlist;
int rc = pcre_get_substring_list((char *)bptr, use_offsets, count,
&stringlist);
if (rc < 0)
fprintf(outfile, "get substring list failed %d\n", rc);
else
{
for (i = 0; i < count; i++)
fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
if (stringlist[i] != NULL)
fprintf(outfile, "string list not terminated by NULL\n");
/* free((void *)stringlist); */
pcre_free_substring_list(stringlist);
}
}
}
/* There was a partial match */
else if (count == PCRE_ERROR_PARTIAL)
{
fprintf(outfile, "Partial match");
#if !defined NODFA
if ((all_use_dfa || use_dfa) && use_size_offsets > 2)
fprintf(outfile, ": %.*s", use_offsets[1] - use_offsets[0],
bptr + use_offsets[0]);
#endif
fprintf(outfile, "\n");
break; /* Out of the /g loop */
}
/* Failed to match. If this is a /g or /G loop and we previously set
g_notempty after a null match, this is not necessarily the end. We want
to advance the start offset, and continue. We won't be at the end of the
string - that was checked before setting g_notempty.
Complication arises in the case when the newline option is "any" or
"anycrlf". If the previous match was at the end of a line terminated by
CRLF, an advance of one character just passes the \r, whereas we should
prefer the longer newline sequence, as does the code in pcre_exec().
Fudge the offset value to achieve this.
Otherwise, in the case of UTF-8 matching, the advance must be one
character, not one byte. */
else
{
if (g_notempty != 0)
{
int onechar = 1;
unsigned int obits = ((real_pcre *)re)->options;
use_offsets[0] = start_offset;
if ((obits & PCRE_NEWLINE_BITS) == 0)
{
int d;
(void)pcre_config(PCRE_CONFIG_NEWLINE, &d);
obits = (d == '\r')? PCRE_NEWLINE_CR :
(d == '\n')? PCRE_NEWLINE_LF :
(d == ('\r'<<8 | '\n'))? PCRE_NEWLINE_CRLF :
(d == -2)? PCRE_NEWLINE_ANYCRLF :
(d == -1)? PCRE_NEWLINE_ANY : 0;
}
if (((obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANY ||
(obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANYCRLF)
&&
start_offset < len - 1 &&
bptr[start_offset] == '\r' &&
bptr[start_offset+1] == '\n')
onechar++;
else if (use_utf8)
{
while (start_offset + onechar < len)
{
int tb = bptr[start_offset+onechar];
if (tb <= 127) break;
tb &= 0xc0;
if (tb != 0 && tb != 0xc0) onechar++;
}
}
use_offsets[1] = start_offset + onechar;
}
else
{
if (count == PCRE_ERROR_NOMATCH)
{
if (gmatched == 0) fprintf(outfile, "No match\n");
}
else fprintf(outfile, "Error %d\n", count);
break; /* Out of the /g loop */
}
}
/* If not /g or /G we are done */
if (!do_g && !do_G) break;
/* If we have matched an empty string, first check to see if we are at
the end of the subject. If so, the /g loop is over. Otherwise, mimic
what Perl's /g options does. This turns out to be rather cunning. First
we set PCRE_NOTEMPTY and PCRE_ANCHORED and try the match again at the
same point. If this fails (picked up above) we advance to the next
character. */
g_notempty = 0;
if (use_offsets[0] == use_offsets[1])
{
if (use_offsets[0] == len) break;
g_notempty = PCRE_NOTEMPTY | PCRE_ANCHORED;
}
/* For /g, update the start offset, leaving the rest alone */
if (do_g) start_offset = use_offsets[1];
/* For /G, update the pointer and length */
else
{
bptr += use_offsets[1];
len -= use_offsets[1];
}
} /* End of loop for /g and /G */
NEXT_DATA: continue;
} /* End of loop for data lines */
CONTINUE:
#if !defined NOPOSIX
if (posix || do_posix) regfree(&preg);
#endif
if (re != NULL) new_free(re);
if (extra != NULL) new_free(extra);
if (tables != NULL)
{
new_free((void *)tables);
setlocale(LC_CTYPE, "C");
locale_set = 0;
}
}
if (infile == stdin) fprintf(outfile, "\n");
EXIT:
if (infile != NULL && infile != stdin) fclose(infile);
if (outfile != NULL && outfile != stdout) fclose(outfile);
free(buffer);
free(dbuffer);
free(pbuffer);
free(offsets);
return yield;
}
/* End of pcretest.c */
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