/[pcre]/code/trunk/pcretest.c
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revision 3 by nigel, Sat Feb 24 21:38:01 2007 UTC revision 411 by ph10, Fri Apr 10 15:40:21 2009 UTC
# Line 2  Line 2 
2  *             PCRE testing program               *  *             PCRE testing program               *
3  *************************************************/  *************************************************/
4    
5    /* This program was hacked up as a tester for PCRE. I really should have
6    written it more tidily in the first place. Will I ever learn? It has grown and
7    been extended and consequently is now rather, er, *very* untidy in places.
8    
9    -----------------------------------------------------------------------------
10    Redistribution and use in source and binary forms, with or without
11    modification, are permitted provided that the following conditions are met:
12    
13        * Redistributions of source code must retain the above copyright notice,
14          this list of conditions and the following disclaimer.
15    
16        * Redistributions in binary form must reproduce the above copyright
17          notice, this list of conditions and the following disclaimer in the
18          documentation and/or other materials provided with the distribution.
19    
20        * Neither the name of the University of Cambridge nor the names of its
21          contributors may be used to endorse or promote products derived from
22          this software without specific prior written permission.
23    
24    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34    POSSIBILITY OF SUCH DAMAGE.
35    -----------------------------------------------------------------------------
36    */
37    
38    
39    #ifdef HAVE_CONFIG_H
40    #include "config.h"
41    #endif
42    
43  #include <ctype.h>  #include <ctype.h>
44  #include <stdio.h>  #include <stdio.h>
45  #include <string.h>  #include <string.h>
46  #include <stdlib.h>  #include <stdlib.h>
47  #include <time.h>  #include <time.h>
48    #include <locale.h>
49    #include <errno.h>
50    
51  /* Use the internal info for displaying the results of pcre_study(). */  #ifdef SUPPORT_LIBREADLINE
52    #ifdef HAVE_UNISTD_H
53    #include <unistd.h>
54    #endif
55    #include <readline/readline.h>
56    #include <readline/history.h>
57    #endif
58    
59  #include "internal.h"  
60    /* A number of things vary for Windows builds. Originally, pcretest opened its
61    input and output without "b"; then I was told that "b" was needed in some
62    environments, so it was added for release 5.0 to both the input and output. (It
63    makes no difference on Unix-like systems.) Later I was told that it is wrong
64    for the input on Windows. I've now abstracted the modes into two macros that
65    are set here, to make it easier to fiddle with them, and removed "b" from the
66    input mode under Windows. */
67    
68    #if defined(_WIN32) || defined(WIN32)
69    #include <io.h>                /* For _setmode() */
70    #include <fcntl.h>             /* For _O_BINARY */
71    #define INPUT_MODE   "r"
72    #define OUTPUT_MODE  "wb"
73    
74    #ifndef isatty
75    #define isatty _isatty         /* This is what Windows calls them, I'm told, */
76    #endif                         /* though in some environments they seem to   */
77                                   /* be already defined, hence the #ifndefs.    */
78    #ifndef fileno
79    #define fileno _fileno
80    #endif
81    
82    #else
83    #include <sys/time.h>          /* These two includes are needed */
84    #include <sys/resource.h>      /* for setrlimit(). */
85    #define INPUT_MODE   "rb"
86    #define OUTPUT_MODE  "wb"
87    #endif
88    
89    
90    /* We have to include pcre_internal.h because we need the internal info for
91    displaying the results of pcre_study() and we also need to know about the
92    internal macros, structures, and other internal data values; pcretest has
93    "inside information" compared to a program that strictly follows the PCRE API.
94    
95    Although pcre_internal.h does itself include pcre.h, we explicitly include it
96    here before pcre_internal.h so that the PCRE_EXP_xxx macros get set
97    appropriately for an application, not for building PCRE. */
98    
99    #include "pcre.h"
100    #include "pcre_internal.h"
101    
102    /* We need access to some of the data tables that PCRE uses. So as not to have
103    to keep two copies, we include the source file here, changing the names of the
104    external symbols to prevent clashes. */
105    
106    #define _pcre_ucp_gentype      ucp_gentype
107    #define _pcre_utf8_table1      utf8_table1
108    #define _pcre_utf8_table1_size utf8_table1_size
109    #define _pcre_utf8_table2      utf8_table2
110    #define _pcre_utf8_table3      utf8_table3
111    #define _pcre_utf8_table4      utf8_table4
112    #define _pcre_utt              utt
113    #define _pcre_utt_size         utt_size
114    #define _pcre_utt_names        utt_names
115    #define _pcre_OP_lengths       OP_lengths
116    
117    #include "pcre_tables.c"
118    
119    /* We also need the pcre_printint() function for printing out compiled
120    patterns. This function is in a separate file so that it can be included in
121    pcre_compile.c when that module is compiled with debugging enabled.
122    
123    The definition of the macro PRINTABLE, which determines whether to print an
124    output character as-is or as a hex value when showing compiled patterns, is
125    contained in this file. We uses it here also, in cases when the locale has not
126    been explicitly changed, so as to get consistent output from systems that
127    differ in their output from isprint() even in the "C" locale. */
128    
129    #include "pcre_printint.src"
130    
131    #define PRINTHEX(c) (locale_set? isprint(c) : PRINTABLE(c))
132    
133    
134    /* It is possible to compile this test program without including support for
135    testing the POSIX interface, though this is not available via the standard
136    Makefile. */
137    
138    #if !defined NOPOSIX
139  #include "pcreposix.h"  #include "pcreposix.h"
140    #endif
141    
142    /* It is also possible, for the benefit of the version currently imported into
143    Exim, to build pcretest without support for UTF8 (define NOUTF8), without the
144    interface to the DFA matcher (NODFA), and without the doublecheck of the old
145    "info" function (define NOINFOCHECK). In fact, we automatically cut out the
146    UTF8 support if PCRE is built without it. */
147    
148    #ifndef SUPPORT_UTF8
149    #ifndef NOUTF8
150    #define NOUTF8
151    #endif
152    #endif
153    
154    
155    /* Other parameters */
156    
157  #ifndef CLOCKS_PER_SEC  #ifndef CLOCKS_PER_SEC
158  #ifdef CLK_TCK  #ifdef CLK_TCK
# Line 21  Line 162 
162  #endif  #endif
163  #endif  #endif
164    
165    /* This is the default loop count for timing. */
166    
167    #define LOOPREPEAT 500000
168    
169    /* Static variables */
170    
171  static FILE *outfile;  static FILE *outfile;
172  static int log_store = 0;  static int log_store = 0;
173    static int callout_count;
174    static int callout_extra;
175    static int callout_fail_count;
176    static int callout_fail_id;
177    static int debug_lengths;
178    static int first_callout;
179    static int locale_set = 0;
180    static int show_malloc;
181    static int use_utf8;
182    static size_t gotten_store;
183    
184    /* The buffers grow automatically if very long input lines are encountered. */
185    
186    static int buffer_size = 50000;
187    static uschar *buffer = NULL;
188    static uschar *dbuffer = NULL;
189    static uschar *pbuffer = NULL;
190    
191    
192    
193  /* Debugging function to print the internal form of the regex. This is the same  /*************************************************
194  code as contained in pcre.c under the DEBUG macro. */  *        Read or extend an input line            *
195    *************************************************/
196    
197  static char *OP_names[] = { "End", "\\A", "\\B", "\\b", "\\D", "\\d",  /* Input lines are read into buffer, but both patterns and data lines can be
198    "\\S", "\\s", "\\W", "\\w", "Cut", "\\Z", "^", "$", "Any", "chars",  continued over multiple input lines. In addition, if the buffer fills up, we
199    "not",  want to automatically expand it so as to be able to handle extremely large
200    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  lines that are needed for certain stress tests. When the input buffer is
201    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  expanded, the other two buffers must also be expanded likewise, and the
202    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  contents of pbuffer, which are a copy of the input for callouts, must be
203    "*", "*?", "+", "+?", "?", "??", "{", "{",  preserved (for when expansion happens for a data line). This is not the most
204    "class", "Ref",  optimal way of handling this, but hey, this is just a test program!
205    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not", "Once",  
206    "Brazero", "Braminzero", "Bra"  Arguments:
207  };    f            the file to read
208      start        where in buffer to start (this *must* be within buffer)
209      prompt       for stdin or readline()
210  static void print_internals(pcre *re)  
211  {  Returns:       pointer to the start of new data
212  unsigned char *code = ((real_pcre *)re)->code;                 could be a copy of start, or could be moved
213                   NULL if no data read and EOF reached
214  printf("------------------------------------------------------------------\n");  */
   
 for(;;)  
   {  
   int c;  
   int charlength;  
   
   printf("%3d ", code - ((real_pcre *)re)->code);  
   
   if (*code >= OP_BRA)  
     {  
     printf("%3d Bra %d", (code[1] << 8) + code[2], *code - OP_BRA);  
     code += 2;  
     }  
   
   else switch(*code)  
     {  
     case OP_END:  
     printf("    %s\n", OP_names[*code]);  
     printf("------------------------------------------------------------------\n");  
     return;  
   
     case OP_CHARS:  
     charlength = *(++code);  
     printf("%3d ", charlength);  
     while (charlength-- > 0)  
       if (isprint(c = *(++code))) printf("%c", c); else printf("\\x%02x", c);  
     break;  
   
     case OP_KETRMAX:  
     case OP_KETRMIN:  
     case OP_ALT:  
     case OP_KET:  
     case OP_ASSERT:  
     case OP_ASSERT_NOT:  
     case OP_ONCE:  
     printf("%3d %s", (code[1] << 8) + code[2], OP_names[*code]);  
     code += 2;  
     break;  
   
     case OP_STAR:  
     case OP_MINSTAR:  
     case OP_PLUS:  
     case OP_MINPLUS:  
     case OP_QUERY:  
     case OP_MINQUERY:  
     case OP_TYPESTAR:  
     case OP_TYPEMINSTAR:  
     case OP_TYPEPLUS:  
     case OP_TYPEMINPLUS:  
     case OP_TYPEQUERY:  
     case OP_TYPEMINQUERY:  
     if (*code >= OP_TYPESTAR)  
       printf("    %s", OP_names[code[1]]);  
     else if (isprint(c = code[1])) printf("    %c", c);  
       else printf("    \\x%02x", c);  
     printf("%s", OP_names[*code++]);  
     break;  
   
     case OP_EXACT:  
     case OP_UPTO:  
     case OP_MINUPTO:  
     if (isprint(c = code[3])) printf("    %c{", c);  
       else printf("    \\x%02x{", c);  
     if (*code != OP_EXACT) printf(",");  
     printf("%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_MINUPTO) printf("?");  
     code += 3;  
     break;  
   
     case OP_TYPEEXACT:  
     case OP_TYPEUPTO:  
     case OP_TYPEMINUPTO:  
     printf("    %s{", OP_names[code[3]]);  
     if (*code != OP_TYPEEXACT) printf(",");  
     printf("%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_TYPEMINUPTO) printf("?");  
     code += 3;  
     break;  
   
     case OP_NOT:  
     if (isprint(c = *(++code))) printf("    [^%c]", c);  
       else printf("    [^\\x%02x]", c);  
     break;  
   
     case OP_NOTSTAR:  
     case OP_NOTMINSTAR:  
     case OP_NOTPLUS:  
     case OP_NOTMINPLUS:  
     case OP_NOTQUERY:  
     case OP_NOTMINQUERY:  
     if (isprint(c = code[1])) printf("    [^%c]", c);  
       else printf("    [^\\x%02x]", c);  
     printf("%s", OP_names[*code++]);  
     break;  
   
     case OP_NOTEXACT:  
     case OP_NOTUPTO:  
     case OP_NOTMINUPTO:  
     if (isprint(c = code[3])) printf("    [^%c]{", c);  
       else printf("    [^\\x%02x]{", c);  
     if (*code != OP_NOTEXACT) printf(",");  
     printf("%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_NOTMINUPTO) printf("?");  
     code += 3;  
     break;  
   
     case OP_REF:  
     printf("    \\%d", *(++code));  
     break;  
   
     case OP_CLASS:  
       {  
       int i, min, max;  
   
       code++;  
       printf("    [");  
   
       for (i = 0; i < 256; i++)  
         {  
         if ((code[i/8] & (1 << (i&7))) != 0)  
           {  
           int j;  
           for (j = i+1; j < 256; j++)  
             if ((code[j/8] & (1 << (j&7))) == 0) break;  
           if (i == '-' || i == ']') printf("\\");  
           if (isprint(i)) printf("%c", i); else printf("\\x%02x", i);  
           if (--j > i)  
             {  
             printf("-");  
             if (j == '-' || j == ']') printf("\\");  
             if (isprint(j)) printf("%c", j); else printf("\\x%02x", j);  
             }  
           i = j;  
           }  
         }  
       printf("]");  
       code += 32;  
   
       switch(*code)  
         {  
         case OP_CRSTAR:  
         case OP_CRMINSTAR:  
         case OP_CRPLUS:  
         case OP_CRMINPLUS:  
         case OP_CRQUERY:  
         case OP_CRMINQUERY:  
         printf("%s", OP_names[*code]);  
         break;  
215    
216          case OP_CRRANGE:  static uschar *
217          case OP_CRMINRANGE:  extend_inputline(FILE *f, uschar *start, const char *prompt)
218          min = (code[1] << 8) + code[2];  {
219          max = (code[3] << 8) + code[4];  uschar *here = start;
         if (max == 0) printf("{%d,}", min);  
         else printf("{%d,%d}", min, max);  
         if (*code == OP_CRMINRANGE) printf("?");  
         code += 4;  
         break;  
220    
221          default:  for (;;)
222          code--;    {
223          }    int rlen = buffer_size - (here - buffer);
224    
225      if (rlen > 1000)
226        {
227        int dlen;
228    
229        /* If libreadline support is required, use readline() to read a line if the
230        input is a terminal. Note that readline() removes the trailing newline, so
231        we must put it back again, to be compatible with fgets(). */
232    
233    #ifdef SUPPORT_LIBREADLINE
234        if (isatty(fileno(f)))
235          {
236          size_t len;
237          char *s = readline(prompt);
238          if (s == NULL) return (here == start)? NULL : start;
239          len = strlen(s);
240          if (len > 0) add_history(s);
241          if (len > rlen - 1) len = rlen - 1;
242          memcpy(here, s, len);
243          here[len] = '\n';
244          here[len+1] = 0;
245          free(s);
246        }        }
247      break;      else
248    #endif
249    
250        /* Read the next line by normal means, prompting if the file is stdin. */
251    
252      /* Anything else is just a one-node item */        {
253          if (f == stdin) printf(prompt);
254          if (fgets((char *)here, rlen,  f) == NULL)
255            return (here == start)? NULL : start;
256          }
257    
258      default:      dlen = (int)strlen((char *)here);
259      printf("    %s", OP_names[*code]);      if (dlen > 0 && here[dlen - 1] == '\n') return start;
260      break;      here += dlen;
261      }      }
262    
263    code++;    else
264    printf("\n");      {
265        int new_buffer_size = 2*buffer_size;
266        uschar *new_buffer = (unsigned char *)malloc(new_buffer_size);
267        uschar *new_dbuffer = (unsigned char *)malloc(new_buffer_size);
268        uschar *new_pbuffer = (unsigned char *)malloc(new_buffer_size);
269    
270        if (new_buffer == NULL || new_dbuffer == NULL || new_pbuffer == NULL)
271          {
272          fprintf(stderr, "pcretest: malloc(%d) failed\n", new_buffer_size);
273          exit(1);
274          }
275    
276        memcpy(new_buffer, buffer, buffer_size);
277        memcpy(new_pbuffer, pbuffer, buffer_size);
278    
279        buffer_size = new_buffer_size;
280    
281        start = new_buffer + (start - buffer);
282        here = new_buffer + (here - buffer);
283    
284        free(buffer);
285        free(dbuffer);
286        free(pbuffer);
287    
288        buffer = new_buffer;
289        dbuffer = new_dbuffer;
290        pbuffer = new_pbuffer;
291        }
292    }    }
293    
294    return NULL;  /* Control never gets here */
295  }  }
296    
297    
298    
 /* Character string printing function. */  
299    
300  static void pchars(unsigned char *p, int length)  
301    
302    
303    /*************************************************
304    *          Read number from string               *
305    *************************************************/
306    
307    /* We don't use strtoul() because SunOS4 doesn't have it. Rather than mess
308    around with conditional compilation, just do the job by hand. It is only used
309    for unpicking arguments, so just keep it simple.
310    
311    Arguments:
312      str           string to be converted
313      endptr        where to put the end pointer
314    
315    Returns:        the unsigned long
316    */
317    
318    static int
319    get_value(unsigned char *str, unsigned char **endptr)
320    {
321    int result = 0;
322    while(*str != 0 && isspace(*str)) str++;
323    while (isdigit(*str)) result = result * 10 + (int)(*str++ - '0');
324    *endptr = str;
325    return(result);
326    }
327    
328    
329    
330    
331    /*************************************************
332    *            Convert UTF-8 string to value       *
333    *************************************************/
334    
335    /* This function takes one or more bytes that represents a UTF-8 character,
336    and returns the value of the character.
337    
338    Argument:
339      utf8bytes   a pointer to the byte vector
340      vptr        a pointer to an int to receive the value
341    
342    Returns:      >  0 => the number of bytes consumed
343                  -6 to 0 => malformed UTF-8 character at offset = (-return)
344    */
345    
346    #if !defined NOUTF8
347    
348    static int
349    utf82ord(unsigned char *utf8bytes, int *vptr)
350    {
351    int c = *utf8bytes++;
352    int d = c;
353    int i, j, s;
354    
355    for (i = -1; i < 6; i++)               /* i is number of additional bytes */
356      {
357      if ((d & 0x80) == 0) break;
358      d <<= 1;
359      }
360    
361    if (i == -1) { *vptr = c; return 1; }  /* ascii character */
362    if (i == 0 || i == 6) return 0;        /* invalid UTF-8 */
363    
364    /* i now has a value in the range 1-5 */
365    
366    s = 6*i;
367    d = (c & utf8_table3[i]) << s;
368    
369    for (j = 0; j < i; j++)
370      {
371      c = *utf8bytes++;
372      if ((c & 0xc0) != 0x80) return -(j+1);
373      s -= 6;
374      d |= (c & 0x3f) << s;
375      }
376    
377    /* Check that encoding was the correct unique one */
378    
379    for (j = 0; j < utf8_table1_size; j++)
380      if (d <= utf8_table1[j]) break;
381    if (j != i) return -(i+1);
382    
383    /* Valid value */
384    
385    *vptr = d;
386    return i+1;
387    }
388    
389    #endif
390    
391    
392    
393    /*************************************************
394    *       Convert character value to UTF-8         *
395    *************************************************/
396    
397    /* This function takes an integer value in the range 0 - 0x7fffffff
398    and encodes it as a UTF-8 character in 0 to 6 bytes.
399    
400    Arguments:
401      cvalue     the character value
402      utf8bytes  pointer to buffer for result - at least 6 bytes long
403    
404    Returns:     number of characters placed in the buffer
405    */
406    
407    #if !defined NOUTF8
408    
409    static int
410    ord2utf8(int cvalue, uschar *utf8bytes)
411    {
412    register int i, j;
413    for (i = 0; i < utf8_table1_size; i++)
414      if (cvalue <= utf8_table1[i]) break;
415    utf8bytes += i;
416    for (j = i; j > 0; j--)
417     {
418     *utf8bytes-- = 0x80 | (cvalue & 0x3f);
419     cvalue >>= 6;
420     }
421    *utf8bytes = utf8_table2[i] | cvalue;
422    return i + 1;
423    }
424    
425    #endif
426    
427    
428    
429    /*************************************************
430    *             Print character string             *
431    *************************************************/
432    
433    /* Character string printing function. Must handle UTF-8 strings in utf8
434    mode. Yields number of characters printed. If handed a NULL file, just counts
435    chars without printing. */
436    
437    static int pchars(unsigned char *p, int length, FILE *f)
438  {  {
439  int c;  int c = 0;
440    int yield = 0;
441    
442  while (length-- > 0)  while (length-- > 0)
443    if (isprint(c = *(p++))) fprintf(outfile, "%c", c);    {
444      else fprintf(outfile, "\\x%02x", c);  #if !defined NOUTF8
445      if (use_utf8)
446        {
447        int rc = utf82ord(p, &c);
448    
449        if (rc > 0 && rc <= length + 1)   /* Mustn't run over the end */
450          {
451          length -= rc - 1;
452          p += rc;
453          if (PRINTHEX(c))
454            {
455            if (f != NULL) fprintf(f, "%c", c);
456            yield++;
457            }
458          else
459            {
460            int n = 4;
461            if (f != NULL) fprintf(f, "\\x{%02x}", c);
462            yield += (n <= 0x000000ff)? 2 :
463                     (n <= 0x00000fff)? 3 :
464                     (n <= 0x0000ffff)? 4 :
465                     (n <= 0x000fffff)? 5 : 6;
466            }
467          continue;
468          }
469        }
470    #endif
471    
472       /* Not UTF-8, or malformed UTF-8  */
473    
474      c = *p++;
475      if (PRINTHEX(c))
476        {
477        if (f != NULL) fprintf(f, "%c", c);
478        yield++;
479        }
480      else
481        {
482        if (f != NULL) fprintf(f, "\\x%02x", c);
483        yield += 4;
484        }
485      }
486    
487    return yield;
488    }
489    
490    
491    
492    /*************************************************
493    *              Callout function                  *
494    *************************************************/
495    
496    /* Called from PCRE as a result of the (?C) item. We print out where we are in
497    the match. Yield zero unless more callouts than the fail count, or the callout
498    data is not zero. */
499    
500    static int callout(pcre_callout_block *cb)
501    {
502    FILE *f = (first_callout | callout_extra)? outfile : NULL;
503    int i, pre_start, post_start, subject_length;
504    
505    if (callout_extra)
506      {
507      fprintf(f, "Callout %d: last capture = %d\n",
508        cb->callout_number, cb->capture_last);
509    
510      for (i = 0; i < cb->capture_top * 2; i += 2)
511        {
512        if (cb->offset_vector[i] < 0)
513          fprintf(f, "%2d: <unset>\n", i/2);
514        else
515          {
516          fprintf(f, "%2d: ", i/2);
517          (void)pchars((unsigned char *)cb->subject + cb->offset_vector[i],
518            cb->offset_vector[i+1] - cb->offset_vector[i], f);
519          fprintf(f, "\n");
520          }
521        }
522      }
523    
524    /* Re-print the subject in canonical form, the first time or if giving full
525    datails. On subsequent calls in the same match, we use pchars just to find the
526    printed lengths of the substrings. */
527    
528    if (f != NULL) fprintf(f, "--->");
529    
530    pre_start = pchars((unsigned char *)cb->subject, cb->start_match, f);
531    post_start = pchars((unsigned char *)(cb->subject + cb->start_match),
532      cb->current_position - cb->start_match, f);
533    
534    subject_length = pchars((unsigned char *)cb->subject, cb->subject_length, NULL);
535    
536    (void)pchars((unsigned char *)(cb->subject + cb->current_position),
537      cb->subject_length - cb->current_position, f);
538    
539    if (f != NULL) fprintf(f, "\n");
540    
541    /* Always print appropriate indicators, with callout number if not already
542    shown. For automatic callouts, show the pattern offset. */
543    
544    if (cb->callout_number == 255)
545      {
546      fprintf(outfile, "%+3d ", cb->pattern_position);
547      if (cb->pattern_position > 99) fprintf(outfile, "\n    ");
548      }
549    else
550      {
551      if (callout_extra) fprintf(outfile, "    ");
552        else fprintf(outfile, "%3d ", cb->callout_number);
553      }
554    
555    for (i = 0; i < pre_start; i++) fprintf(outfile, " ");
556    fprintf(outfile, "^");
557    
558    if (post_start > 0)
559      {
560      for (i = 0; i < post_start - 1; i++) fprintf(outfile, " ");
561      fprintf(outfile, "^");
562      }
563    
564    for (i = 0; i < subject_length - pre_start - post_start + 4; i++)
565      fprintf(outfile, " ");
566    
567    fprintf(outfile, "%.*s", (cb->next_item_length == 0)? 1 : cb->next_item_length,
568      pbuffer + cb->pattern_position);
569    
570    fprintf(outfile, "\n");
571    first_callout = 0;
572    
573    if (cb->callout_data != NULL)
574      {
575      int callout_data = *((int *)(cb->callout_data));
576      if (callout_data != 0)
577        {
578        fprintf(outfile, "Callout data = %d\n", callout_data);
579        return callout_data;
580        }
581      }
582    
583    return (cb->callout_number != callout_fail_id)? 0 :
584           (++callout_count >= callout_fail_count)? 1 : 0;
585  }  }
586    
587    
588    /*************************************************
589    *            Local malloc functions              *
590    *************************************************/
591    
592  /* Alternative malloc function, to test functionality and show the size of the  /* Alternative malloc function, to test functionality and show the size of the
593  compiled re. */  compiled re. */
594    
595  static void *new_malloc(size_t size)  static void *new_malloc(size_t size)
596  {  {
597  if (log_store) fprintf(outfile, "Store size request: %d\n", (int)size);  void *block = malloc(size);
598  return malloc(size);  gotten_store = size;
599    if (show_malloc)
600      fprintf(outfile, "malloc       %3d %p\n", (int)size, block);
601    return block;
602    }
603    
604    static void new_free(void *block)
605    {
606    if (show_malloc)
607      fprintf(outfile, "free             %p\n", block);
608    free(block);
609    }
610    
611    
612    /* For recursion malloc/free, to test stacking calls */
613    
614    static void *stack_malloc(size_t size)
615    {
616    void *block = malloc(size);
617    if (show_malloc)
618      fprintf(outfile, "stack_malloc %3d %p\n", (int)size, block);
619    return block;
620    }
621    
622    static void stack_free(void *block)
623    {
624    if (show_malloc)
625      fprintf(outfile, "stack_free       %p\n", block);
626    free(block);
627    }
628    
629    
630    /*************************************************
631    *          Call pcre_fullinfo()                  *
632    *************************************************/
633    
634    /* Get one piece of information from the pcre_fullinfo() function */
635    
636    static void new_info(pcre *re, pcre_extra *study, int option, void *ptr)
637    {
638    int rc;
639    if ((rc = pcre_fullinfo(re, study, option, ptr)) < 0)
640      fprintf(outfile, "Error %d from pcre_fullinfo(%d)\n", rc, option);
641    }
642    
643    
644    
645    /*************************************************
646    *         Byte flipping function                 *
647    *************************************************/
648    
649    static unsigned long int
650    byteflip(unsigned long int value, int n)
651    {
652    if (n == 2) return ((value & 0x00ff) << 8) | ((value & 0xff00) >> 8);
653    return ((value & 0x000000ff) << 24) |
654           ((value & 0x0000ff00) <<  8) |
655           ((value & 0x00ff0000) >>  8) |
656           ((value & 0xff000000) >> 24);
657    }
658    
659    
660    
661    
662    /*************************************************
663    *        Check match or recursion limit          *
664    *************************************************/
665    
666    static int
667    check_match_limit(pcre *re, pcre_extra *extra, uschar *bptr, int len,
668      int start_offset, int options, int *use_offsets, int use_size_offsets,
669      int flag, unsigned long int *limit, int errnumber, const char *msg)
670    {
671    int count;
672    int min = 0;
673    int mid = 64;
674    int max = -1;
675    
676    extra->flags |= flag;
677    
678    for (;;)
679      {
680      *limit = mid;
681    
682      count = pcre_exec(re, extra, (char *)bptr, len, start_offset, options,
683        use_offsets, use_size_offsets);
684    
685      if (count == errnumber)
686        {
687        /* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
688        min = mid;
689        mid = (mid == max - 1)? max : (max > 0)? (min + max)/2 : mid*2;
690        }
691    
692      else if (count >= 0 || count == PCRE_ERROR_NOMATCH ||
693                             count == PCRE_ERROR_PARTIAL)
694        {
695        if (mid == min + 1)
696          {
697          fprintf(outfile, "Minimum %s limit = %d\n", msg, mid);
698          break;
699          }
700        /* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
701        max = mid;
702        mid = (min + mid)/2;
703        }
704      else break;    /* Some other error */
705      }
706    
707    extra->flags &= ~flag;
708    return count;
709  }  }
710    
711    
712    
713    /*************************************************
714    *         Case-independent strncmp() function    *
715    *************************************************/
716    
717    /*
718    Arguments:
719      s         first string
720      t         second string
721      n         number of characters to compare
722    
723    Returns:    < 0, = 0, or > 0, according to the comparison
724    */
725    
726    static int
727    strncmpic(uschar *s, uschar *t, int n)
728    {
729    while (n--)
730      {
731      int c = tolower(*s++) - tolower(*t++);
732      if (c) return c;
733      }
734    return 0;
735    }
736    
737    
738    
739    /*************************************************
740    *         Check newline indicator                *
741    *************************************************/
742    
743    /* This is used both at compile and run-time to check for <xxx> escapes, where
744    xxx is LF, CR, CRLF, ANYCRLF, or ANY. Print a message and return 0 if there is
745    no match.
746    
747    Arguments:
748      p           points after the leading '<'
749      f           file for error message
750    
751    Returns:      appropriate PCRE_NEWLINE_xxx flags, or 0
752    */
753    
754    static int
755    check_newline(uschar *p, FILE *f)
756    {
757    if (strncmpic(p, (uschar *)"cr>", 3) == 0) return PCRE_NEWLINE_CR;
758    if (strncmpic(p, (uschar *)"lf>", 3) == 0) return PCRE_NEWLINE_LF;
759    if (strncmpic(p, (uschar *)"crlf>", 5) == 0) return PCRE_NEWLINE_CRLF;
760    if (strncmpic(p, (uschar *)"anycrlf>", 8) == 0) return PCRE_NEWLINE_ANYCRLF;
761    if (strncmpic(p, (uschar *)"any>", 4) == 0) return PCRE_NEWLINE_ANY;
762    if (strncmpic(p, (uschar *)"bsr_anycrlf>", 12) == 0) return PCRE_BSR_ANYCRLF;
763    if (strncmpic(p, (uschar *)"bsr_unicode>", 12) == 0) return PCRE_BSR_UNICODE;
764    fprintf(f, "Unknown newline type at: <%s\n", p);
765    return 0;
766    }
767    
768    
769    
770    /*************************************************
771    *             Usage function                     *
772    *************************************************/
773    
774    static void
775    usage(void)
776    {
777    printf("Usage:     pcretest [options] [<input file> [<output file>]]\n\n");
778    printf("Input and output default to stdin and stdout.\n");
779    #ifdef SUPPORT_LIBREADLINE
780    printf("If input is a terminal, readline() is used to read from it.\n");
781    #else
782    printf("This version of pcretest is not linked with readline().\n");
783    #endif
784    printf("\nOptions:\n");
785    printf("  -b       show compiled code (bytecode)\n");
786    printf("  -C       show PCRE compile-time options and exit\n");
787    printf("  -d       debug: show compiled code and information (-b and -i)\n");
788    #if !defined NODFA
789    printf("  -dfa     force DFA matching for all subjects\n");
790    #endif
791    printf("  -help    show usage information\n");
792    printf("  -i       show information about compiled patterns\n"
793           "  -M       find MATCH_LIMIT minimum for each subject\n"
794           "  -m       output memory used information\n"
795           "  -o <n>   set size of offsets vector to <n>\n");
796    #if !defined NOPOSIX
797    printf("  -p       use POSIX interface\n");
798    #endif
799    printf("  -q       quiet: do not output PCRE version number at start\n");
800    printf("  -S <n>   set stack size to <n> megabytes\n");
801    printf("  -s       output store (memory) used information\n"
802           "  -t       time compilation and execution\n");
803    printf("  -t <n>   time compilation and execution, repeating <n> times\n");
804    printf("  -tm      time execution (matching) only\n");
805    printf("  -tm <n>  time execution (matching) only, repeating <n> times\n");
806    }
807    
808    
809    
810    /*************************************************
811    *                Main Program                    *
812    *************************************************/
813    
814  /* Read lines from named file or stdin and write to named file or stdout; lines  /* Read lines from named file or stdin and write to named file or stdout; lines
815  consist of a regular expression, in delimiters and optionally followed by  consist of a regular expression, in delimiters and optionally followed by
816  options, followed by a set of test data, terminated by an empty line. */  options, followed by a set of test data, terminated by an empty line. */
# Line 259  int main(int argc, char **argv) Line 820  int main(int argc, char **argv)
820  FILE *infile = stdin;  FILE *infile = stdin;
821  int options = 0;  int options = 0;
822  int study_options = 0;  int study_options = 0;
823    int default_find_match_limit = FALSE;
824  int op = 1;  int op = 1;
825  int timeit = 0;  int timeit = 0;
826    int timeitm = 0;
827  int showinfo = 0;  int showinfo = 0;
828    int showstore = 0;
829    int quiet = 0;
830    int size_offsets = 45;
831    int size_offsets_max;
832    int *offsets = NULL;
833    #if !defined NOPOSIX
834  int posix = 0;  int posix = 0;
835    #endif
836  int debug = 0;  int debug = 0;
837  unsigned char buffer[30000];  int done = 0;
838  unsigned char dbuffer[1024];  int all_use_dfa = 0;
839    int yield = 0;
840    int stack_size;
841    
842    /* These vectors store, end-to-end, a list of captured substring names. Assume
843    that 1024 is plenty long enough for the few names we'll be testing. */
844    
845    uschar copynames[1024];
846    uschar getnames[1024];
847    
848  /* Static so that new_malloc can use it. */  uschar *copynamesptr;
849    uschar *getnamesptr;
850    
851    /* Get buffers from malloc() so that Electric Fence will check their misuse
852    when I am debugging. They grow automatically when very long lines are read. */
853    
854    buffer = (unsigned char *)malloc(buffer_size);
855    dbuffer = (unsigned char *)malloc(buffer_size);
856    pbuffer = (unsigned char *)malloc(buffer_size);
857    
858    /* The outfile variable is static so that new_malloc can use it. */
859    
860  outfile = stdout;  outfile = stdout;
861    
862    /* The following  _setmode() stuff is some Windows magic that tells its runtime
863    library to translate CRLF into a single LF character. At least, that's what
864    I've been told: never having used Windows I take this all on trust. Originally
865    it set 0x8000, but then I was advised that _O_BINARY was better. */
866    
867    #if defined(_WIN32) || defined(WIN32)
868    _setmode( _fileno( stdout ), _O_BINARY );
869    #endif
870    
871  /* Scan options */  /* Scan options */
872    
873  while (argc > 1 && argv[op][0] == '-')  while (argc > 1 && argv[op][0] == '-')
874    {    {
875    if (strcmp(argv[op], "-s") == 0) log_store = 1;    unsigned char *endptr;
876    else if (strcmp(argv[op], "-t") == 0) timeit = 1;  
877      if (strcmp(argv[op], "-s") == 0 || strcmp(argv[op], "-m") == 0)
878        showstore = 1;
879      else if (strcmp(argv[op], "-q") == 0) quiet = 1;
880      else if (strcmp(argv[op], "-b") == 0) debug = 1;
881    else if (strcmp(argv[op], "-i") == 0) showinfo = 1;    else if (strcmp(argv[op], "-i") == 0) showinfo = 1;
882    else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;    else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;
883      else if (strcmp(argv[op], "-M") == 0) default_find_match_limit = TRUE;
884    #if !defined NODFA
885      else if (strcmp(argv[op], "-dfa") == 0) all_use_dfa = 1;
886    #endif
887      else if (strcmp(argv[op], "-o") == 0 && argc > 2 &&
888          ((size_offsets = get_value((unsigned char *)argv[op+1], &endptr)),
889            *endptr == 0))
890        {
891        op++;
892        argc--;
893        }
894      else if (strcmp(argv[op], "-t") == 0 || strcmp(argv[op], "-tm") == 0)
895        {
896        int both = argv[op][2] == 0;
897        int temp;
898        if (argc > 2 && (temp = get_value((unsigned char *)argv[op+1], &endptr),
899                         *endptr == 0))
900          {
901          timeitm = temp;
902          op++;
903          argc--;
904          }
905        else timeitm = LOOPREPEAT;
906        if (both) timeit = timeitm;
907        }
908      else if (strcmp(argv[op], "-S") == 0 && argc > 2 &&
909          ((stack_size = get_value((unsigned char *)argv[op+1], &endptr)),
910            *endptr == 0))
911        {
912    #if defined(_WIN32) || defined(WIN32)
913        printf("PCRE: -S not supported on this OS\n");
914        exit(1);
915    #else
916        int rc;
917        struct rlimit rlim;
918        getrlimit(RLIMIT_STACK, &rlim);
919        rlim.rlim_cur = stack_size * 1024 * 1024;
920        rc = setrlimit(RLIMIT_STACK, &rlim);
921        if (rc != 0)
922          {
923        printf("PCRE: setrlimit() failed with error %d\n", rc);
924        exit(1);
925          }
926        op++;
927        argc--;
928    #endif
929        }
930    #if !defined NOPOSIX
931    else if (strcmp(argv[op], "-p") == 0) posix = 1;    else if (strcmp(argv[op], "-p") == 0) posix = 1;
932    #endif
933      else if (strcmp(argv[op], "-C") == 0)
934        {
935        int rc;
936        unsigned long int lrc;
937        printf("PCRE version %s\n", pcre_version());
938        printf("Compiled with\n");
939        (void)pcre_config(PCRE_CONFIG_UTF8, &rc);
940        printf("  %sUTF-8 support\n", rc? "" : "No ");
941        (void)pcre_config(PCRE_CONFIG_UNICODE_PROPERTIES, &rc);
942        printf("  %sUnicode properties support\n", rc? "" : "No ");
943        (void)pcre_config(PCRE_CONFIG_NEWLINE, &rc);
944        /* Note that these values are always the ASCII values, even
945        in EBCDIC environments. CR is 13 and NL is 10. */
946        printf("  Newline sequence is %s\n", (rc == 13)? "CR" :
947          (rc == 10)? "LF" : (rc == (13<<8 | 10))? "CRLF" :
948          (rc == -2)? "ANYCRLF" :
949          (rc == -1)? "ANY" : "???");
950        (void)pcre_config(PCRE_CONFIG_BSR, &rc);
951        printf("  \\R matches %s\n", rc? "CR, LF, or CRLF only" :
952                                         "all Unicode newlines");
953        (void)pcre_config(PCRE_CONFIG_LINK_SIZE, &rc);
954        printf("  Internal link size = %d\n", rc);
955        (void)pcre_config(PCRE_CONFIG_POSIX_MALLOC_THRESHOLD, &rc);
956        printf("  POSIX malloc threshold = %d\n", rc);
957        (void)pcre_config(PCRE_CONFIG_MATCH_LIMIT, &lrc);
958        printf("  Default match limit = %ld\n", lrc);
959        (void)pcre_config(PCRE_CONFIG_MATCH_LIMIT_RECURSION, &lrc);
960        printf("  Default recursion depth limit = %ld\n", lrc);
961        (void)pcre_config(PCRE_CONFIG_STACKRECURSE, &rc);
962        printf("  Match recursion uses %s\n", rc? "stack" : "heap");
963        goto EXIT;
964        }
965      else if (strcmp(argv[op], "-help") == 0 ||
966               strcmp(argv[op], "--help") == 0)
967        {
968        usage();
969        goto EXIT;
970        }
971    else    else
972      {      {
973      printf("*** Unknown option %s\n", argv[op]);      printf("** Unknown or malformed option %s\n", argv[op]);
974      return 1;      usage();
975        yield = 1;
976        goto EXIT;
977      }      }
978    op++;    op++;
979    argc--;    argc--;
980    }    }
981    
982    /* Get the store for the offsets vector, and remember what it was */
983    
984    size_offsets_max = size_offsets;
985    offsets = (int *)malloc(size_offsets_max * sizeof(int));
986    if (offsets == NULL)
987      {
988      printf("** Failed to get %d bytes of memory for offsets vector\n",
989        (int)(size_offsets_max * sizeof(int)));
990      yield = 1;
991      goto EXIT;
992      }
993    
994  /* Sort out the input and output files */  /* Sort out the input and output files */
995    
996  if (argc > 1)  if (argc > 1)
997    {    {
998    infile = fopen(argv[op], "r");    infile = fopen(argv[op], INPUT_MODE);
999    if (infile == NULL)    if (infile == NULL)
1000      {      {
1001      printf("** Failed to open %s\n", argv[op]);      printf("** Failed to open %s\n", argv[op]);
1002      return 1;      yield = 1;
1003        goto EXIT;
1004      }      }
1005    }    }
1006    
1007  if (argc > 2)  if (argc > 2)
1008    {    {
1009    outfile = fopen(argv[op+1], "w");    outfile = fopen(argv[op+1], OUTPUT_MODE);
1010    if (outfile == NULL)    if (outfile == NULL)
1011      {      {
1012      printf("** Failed to open %s\n", argv[op+1]);      printf("** Failed to open %s\n", argv[op+1]);
1013      return 1;      yield = 1;
1014        goto EXIT;
1015      }      }
1016    }    }
1017    
1018  /* Set alternative malloc function */  /* Set alternative malloc function */
1019    
1020  pcre_malloc = new_malloc;  pcre_malloc = new_malloc;
1021    pcre_free = new_free;
1022    pcre_stack_malloc = stack_malloc;
1023    pcre_stack_free = stack_free;
1024    
1025  /* Heading line, then prompt for first re if stdin */  /* Heading line unless quiet, then prompt for first regex if stdin */
1026    
1027  fprintf(outfile, "Testing Perl-Compatible Regular Expressions\n");  if (!quiet) fprintf(outfile, "PCRE version %s\n\n", pcre_version());
 fprintf(outfile, "PCRE version %s\n\n", pcre_version());  
1028    
1029  /* Main loop */  /* Main loop */
1030    
1031  for (;;)  while (!done)
1032    {    {
1033    pcre *re = NULL;    pcre *re = NULL;
1034    pcre_extra *extra = NULL;    pcre_extra *extra = NULL;
1035    
1036    #if !defined NOPOSIX  /* There are still compilers that require no indent */
1037    regex_t preg;    regex_t preg;
   char *error;  
   unsigned char *p, *pp;  
   int do_study = 0;  
   int do_debug = 0;  
1038    int do_posix = 0;    int do_posix = 0;
1039    int erroroffset, len, delimiter;  #endif
1040    
1041    if (infile == stdin) printf("  re> ");    const char *error;
1042    if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) break;    unsigned char *p, *pp, *ppp;
1043    if (infile != stdin) fprintf(outfile, (char *)buffer);    unsigned char *to_file = NULL;
1044      const unsigned char *tables = NULL;
1045      unsigned long int true_size, true_study_size = 0;
1046      size_t size, regex_gotten_store;
1047      int do_study = 0;
1048      int do_debug = debug;
1049      int do_G = 0;
1050      int do_g = 0;
1051      int do_showinfo = showinfo;
1052      int do_showrest = 0;
1053      int do_flip = 0;
1054      int erroroffset, len, delimiter, poffset;
1055    
1056      use_utf8 = 0;
1057      debug_lengths = 1;
1058    
1059      if (extend_inputline(infile, buffer, "  re> ") == NULL) break;
1060      if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1061      fflush(outfile);
1062    
1063    p = buffer;    p = buffer;
1064    while (isspace(*p)) p++;    while (isspace(*p)) p++;
1065    if (*p == 0) continue;    if (*p == 0) continue;
1066    
1067    /* Get the delimiter and seek the end of the pattern; if is isn't    /* See if the pattern is to be loaded pre-compiled from a file. */
1068    complete, read more. */  
1069      if (*p == '<' && strchr((char *)(p+1), '<') == NULL)
1070        {
1071        unsigned long int magic, get_options;
1072        uschar sbuf[8];
1073        FILE *f;
1074    
1075        p++;
1076        pp = p + (int)strlen((char *)p);
1077        while (isspace(pp[-1])) pp--;
1078        *pp = 0;
1079    
1080        f = fopen((char *)p, "rb");
1081        if (f == NULL)
1082          {
1083          fprintf(outfile, "Failed to open %s: %s\n", p, strerror(errno));
1084          continue;
1085          }
1086    
1087        if (fread(sbuf, 1, 8, f) != 8) goto FAIL_READ;
1088    
1089        true_size =
1090          (sbuf[0] << 24) | (sbuf[1] << 16) | (sbuf[2] << 8) | sbuf[3];
1091        true_study_size =
1092          (sbuf[4] << 24) | (sbuf[5] << 16) | (sbuf[6] << 8) | sbuf[7];
1093    
1094        re = (real_pcre *)new_malloc(true_size);
1095        regex_gotten_store = gotten_store;
1096    
1097        if (fread(re, 1, true_size, f) != true_size) goto FAIL_READ;
1098    
1099        magic = ((real_pcre *)re)->magic_number;
1100        if (magic != MAGIC_NUMBER)
1101          {
1102          if (byteflip(magic, sizeof(magic)) == MAGIC_NUMBER)
1103            {
1104            do_flip = 1;
1105            }
1106          else
1107            {
1108            fprintf(outfile, "Data in %s is not a compiled PCRE regex\n", p);
1109            fclose(f);
1110            continue;
1111            }
1112          }
1113    
1114        fprintf(outfile, "Compiled regex%s loaded from %s\n",
1115          do_flip? " (byte-inverted)" : "", p);
1116    
1117        /* Need to know if UTF-8 for printing data strings */
1118    
1119        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1120        use_utf8 = (get_options & PCRE_UTF8) != 0;
1121    
1122        /* Now see if there is any following study data */
1123    
1124        if (true_study_size != 0)
1125          {
1126          pcre_study_data *psd;
1127    
1128          extra = (pcre_extra *)new_malloc(sizeof(pcre_extra) + true_study_size);
1129          extra->flags = PCRE_EXTRA_STUDY_DATA;
1130    
1131          psd = (pcre_study_data *)(((char *)extra) + sizeof(pcre_extra));
1132          extra->study_data = psd;
1133    
1134          if (fread(psd, 1, true_study_size, f) != true_study_size)
1135            {
1136            FAIL_READ:
1137            fprintf(outfile, "Failed to read data from %s\n", p);
1138            if (extra != NULL) new_free(extra);
1139            if (re != NULL) new_free(re);
1140            fclose(f);
1141            continue;
1142            }
1143          fprintf(outfile, "Study data loaded from %s\n", p);
1144          do_study = 1;     /* To get the data output if requested */
1145          }
1146        else fprintf(outfile, "No study data\n");
1147    
1148        fclose(f);
1149        goto SHOW_INFO;
1150        }
1151    
1152      /* In-line pattern (the usual case). Get the delimiter and seek the end of
1153      the pattern; if is isn't complete, read more. */
1154    
1155    delimiter = *p++;    delimiter = *p++;
1156    
1157    if (isalnum(delimiter))    if (isalnum(delimiter) || delimiter == '\\')
1158      {      {
1159      fprintf(outfile, "** Delimiter must not be alphameric\n");      fprintf(outfile, "** Delimiter must not be alphanumeric or \\\n");
1160      goto SKIP_DATA;      goto SKIP_DATA;
1161      }      }
1162    
1163    pp = p;    pp = p;
1164      poffset = p - buffer;
1165    
1166    for(;;)    for(;;)
1167      {      {
1168      while (*pp != 0 && *pp != delimiter) pp++;      while (*pp != 0)
     if (*pp != 0) break;  
   
     len = sizeof(buffer) - (pp - buffer);  
     if (len < 256)  
1169        {        {
1170        fprintf(outfile, "** Expression too long - missing delimiter?\n");        if (*pp == '\\' && pp[1] != 0) pp++;
1171        goto SKIP_DATA;          else if (*pp == delimiter) break;
1172          pp++;
1173        }        }
1174        if (*pp != 0) break;
1175      if (infile == stdin) printf("    > ");      if ((pp = extend_inputline(infile, pp, "    > ")) == NULL)
     if (fgets((char *)pp, len, infile) == NULL)  
1176        {        {
1177        fprintf(outfile, "** Unexpected EOF\n");        fprintf(outfile, "** Unexpected EOF\n");
1178        goto END_OFF;        done = 1;
1179          goto CONTINUE;
1180        }        }
1181      if (infile != stdin) fprintf(outfile, (char *)pp);      if (infile != stdin) fprintf(outfile, "%s", (char *)pp);
1182      }      }
1183    
1184    /* Terminate the pattern at the delimiter */    /* The buffer may have moved while being extended; reset the start of data
1185      pointer to the correct relative point in the buffer. */
1186    
1187      p = buffer + poffset;
1188    
1189      /* If the first character after the delimiter is backslash, make
1190      the pattern end with backslash. This is purely to provide a way
1191      of testing for the error message when a pattern ends with backslash. */
1192    
1193      if (pp[1] == '\\') *pp++ = '\\';
1194    
1195      /* Terminate the pattern at the delimiter, and save a copy of the pattern
1196      for callouts. */
1197    
1198    *pp++ = 0;    *pp++ = 0;
1199      strcpy((char *)pbuffer, (char *)p);
1200    
1201    /* Look for options after final delimiter */    /* Look for options after final delimiter */
1202    
1203    options = 0;    options = 0;
1204    study_options = 0;    study_options = 0;
1205      log_store = showstore;  /* default from command line */
1206    
1207    while (*pp != 0)    while (*pp != 0)
1208      {      {
1209      switch (*pp++)      switch (*pp++)
1210        {        {
1211          case 'f': options |= PCRE_FIRSTLINE; break;
1212          case 'g': do_g = 1; break;
1213        case 'i': options |= PCRE_CASELESS; break;        case 'i': options |= PCRE_CASELESS; break;
1214        case 'm': options |= PCRE_MULTILINE; break;        case 'm': options |= PCRE_MULTILINE; break;
1215        case 's': options |= PCRE_DOTALL; break;        case 's': options |= PCRE_DOTALL; break;
1216        case 'x': options |= PCRE_EXTENDED; break;        case 'x': options |= PCRE_EXTENDED; break;
1217    
1218          case '+': do_showrest = 1; break;
1219        case 'A': options |= PCRE_ANCHORED; break;        case 'A': options |= PCRE_ANCHORED; break;
1220        case 'D': do_debug = 1; break;        case 'B': do_debug = 1; break;
1221          case 'C': options |= PCRE_AUTO_CALLOUT; break;
1222          case 'D': do_debug = do_showinfo = 1; break;
1223        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;
1224          case 'F': do_flip = 1; break;
1225          case 'G': do_G = 1; break;
1226          case 'I': do_showinfo = 1; break;
1227          case 'J': options |= PCRE_DUPNAMES; break;
1228          case 'M': log_store = 1; break;
1229          case 'N': options |= PCRE_NO_AUTO_CAPTURE; break;
1230    
1231    #if !defined NOPOSIX
1232        case 'P': do_posix = 1; break;        case 'P': do_posix = 1; break;
1233    #endif
1234    
1235        case 'S': do_study = 1; break;        case 'S': do_study = 1; break;
1236        case 'I': study_options |= PCRE_CASELESS; break;        case 'U': options |= PCRE_UNGREEDY; break;
1237        case 'X': options |= PCRE_EXTRA; break;        case 'X': options |= PCRE_EXTRA; break;
1238        case '\n': case ' ': break;        case 'Z': debug_lengths = 0; break;
1239          case '8': options |= PCRE_UTF8; use_utf8 = 1; break;
1240          case '?': options |= PCRE_NO_UTF8_CHECK; break;
1241    
1242          case 'L':
1243          ppp = pp;
1244          /* The '\r' test here is so that it works on Windows. */
1245          /* The '0' test is just in case this is an unterminated line. */
1246          while (*ppp != 0 && *ppp != '\n' && *ppp != '\r' && *ppp != ' ') ppp++;
1247          *ppp = 0;
1248          if (setlocale(LC_CTYPE, (const char *)pp) == NULL)
1249            {
1250            fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);
1251            goto SKIP_DATA;
1252            }
1253          locale_set = 1;
1254          tables = pcre_maketables();
1255          pp = ppp;
1256          break;
1257    
1258          case '>':
1259          to_file = pp;
1260          while (*pp != 0) pp++;
1261          while (isspace(pp[-1])) pp--;
1262          *pp = 0;
1263          break;
1264    
1265          case '<':
1266            {
1267            if (strncmp((char *)pp, "JS>", 3) == 0)
1268              {
1269              options |= PCRE_JAVASCRIPT_COMPAT;
1270              pp += 3;
1271              }
1272            else
1273              {
1274              int x = check_newline(pp, outfile);
1275              if (x == 0) goto SKIP_DATA;
1276              options |= x;
1277              while (*pp++ != '>');
1278              }
1279            }
1280          break;
1281    
1282          case '\r':                      /* So that it works in Windows */
1283          case '\n':
1284          case ' ':
1285          break;
1286    
1287        default:        default:
1288        fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);        fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);
1289        goto SKIP_DATA;        goto SKIP_DATA;
1290        }        }
1291      }      }
1292    
1293    /* Handle compiing via the POSIX interface, which doesn't support the    /* Handle compiling via the POSIX interface, which doesn't support the
1294    timing, showing, or debugging options. */    timing, showing, or debugging options, nor the ability to pass over
1295      local character tables. */
1296    
1297    #if !defined NOPOSIX
1298    if (posix || do_posix)    if (posix || do_posix)
1299      {      {
1300      int rc;      int rc;
1301      int cflags = 0;      int cflags = 0;
1302    
1303      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;
1304      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;
1305        if ((options & PCRE_DOTALL) != 0) cflags |= REG_DOTALL;
1306        if ((options & PCRE_NO_AUTO_CAPTURE) != 0) cflags |= REG_NOSUB;
1307        if ((options & PCRE_UTF8) != 0) cflags |= REG_UTF8;
1308    
1309      rc = regcomp(&preg, (char *)p, cflags);      rc = regcomp(&preg, (char *)p, cflags);
1310    
1311      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
# Line 422  for (;;) Line 1313  for (;;)
1313    
1314      if (rc != 0)      if (rc != 0)
1315        {        {
1316        (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));        (void)regerror(rc, &preg, (char *)buffer, buffer_size);
1317        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
1318        goto SKIP_DATA;        goto SKIP_DATA;
1319        }        }
# Line 431  for (;;) Line 1322  for (;;)
1322    /* Handle compiling via the native interface */    /* Handle compiling via the native interface */
1323    
1324    else    else
1325    #endif  /* !defined NOPOSIX */
1326    
1327      {      {
1328      if (timeit)      if (timeit > 0)
1329        {        {
1330        register int i;        register int i;
1331        clock_t time_taken;        clock_t time_taken;
1332        clock_t start_time = clock();        clock_t start_time = clock();
1333        for (i = 0; i < 4000; i++)        for (i = 0; i < timeit; i++)
1334          {          {
1335          re = pcre_compile((char *)p, options, &error, &erroroffset);          re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1336          if (re != NULL) free(re);          if (re != NULL) free(re);
1337          }          }
1338        time_taken = clock() - start_time;        time_taken = clock() - start_time;
1339        fprintf(outfile, "Compile time %.2f milliseconds\n",        fprintf(outfile, "Compile time %.4f milliseconds\n",
1340          ((double)time_taken)/(4 * CLOCKS_PER_SEC));          (((double)time_taken * 1000.0) / (double)timeit) /
1341              (double)CLOCKS_PER_SEC);
1342        }        }
1343    
1344      re = pcre_compile((char *)p, options, &error, &erroroffset);      re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1345    
1346      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
1347      if non-interactive. */      if non-interactive. */
# Line 460  for (;;) Line 1354  for (;;)
1354          {          {
1355          for (;;)          for (;;)
1356            {            {
1357            if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)            if (extend_inputline(infile, buffer, NULL) == NULL)
1358              goto END_OFF;              {
1359                done = 1;
1360                goto CONTINUE;
1361                }
1362            len = (int)strlen((char *)buffer);            len = (int)strlen((char *)buffer);
1363            while (len > 0 && isspace(buffer[len-1])) len--;            while (len > 0 && isspace(buffer[len-1])) len--;
1364            if (len == 0) break;            if (len == 0) break;
1365            }            }
1366          fprintf(outfile, "\n");          fprintf(outfile, "\n");
1367          }          }
1368        continue;        goto CONTINUE;
1369          }
1370    
1371        /* Compilation succeeded; print data if required. There are now two
1372        info-returning functions. The old one has a limited interface and
1373        returns only limited data. Check that it agrees with the newer one. */
1374    
1375        if (log_store)
1376          fprintf(outfile, "Memory allocation (code space): %d\n",
1377            (int)(gotten_store -
1378                  sizeof(real_pcre) -
1379                  ((real_pcre *)re)->name_count * ((real_pcre *)re)->name_entry_size));
1380    
1381        /* Extract the size for possible writing before possibly flipping it,
1382        and remember the store that was got. */
1383    
1384        true_size = ((real_pcre *)re)->size;
1385        regex_gotten_store = gotten_store;
1386    
1387        /* If /S was present, study the regexp to generate additional info to
1388        help with the matching. */
1389    
1390        if (do_study)
1391          {
1392          if (timeit > 0)
1393            {
1394            register int i;
1395            clock_t time_taken;
1396            clock_t start_time = clock();
1397            for (i = 0; i < timeit; i++)
1398              extra = pcre_study(re, study_options, &error);
1399            time_taken = clock() - start_time;
1400            if (extra != NULL) free(extra);
1401            fprintf(outfile, "  Study time %.4f milliseconds\n",
1402              (((double)time_taken * 1000.0) / (double)timeit) /
1403                (double)CLOCKS_PER_SEC);
1404            }
1405          extra = pcre_study(re, study_options, &error);
1406          if (error != NULL)
1407            fprintf(outfile, "Failed to study: %s\n", error);
1408          else if (extra != NULL)
1409            true_study_size = ((pcre_study_data *)(extra->study_data))->size;
1410          }
1411    
1412        /* If the 'F' option was present, we flip the bytes of all the integer
1413        fields in the regex data block and the study block. This is to make it
1414        possible to test PCRE's handling of byte-flipped patterns, e.g. those
1415        compiled on a different architecture. */
1416    
1417        if (do_flip)
1418          {
1419          real_pcre *rre = (real_pcre *)re;
1420          rre->magic_number =
1421            byteflip(rre->magic_number, sizeof(rre->magic_number));
1422          rre->size = byteflip(rre->size, sizeof(rre->size));
1423          rre->options = byteflip(rre->options, sizeof(rre->options));
1424          rre->flags = (pcre_uint16)byteflip(rre->flags, sizeof(rre->flags));
1425          rre->top_bracket =
1426            (pcre_uint16)byteflip(rre->top_bracket, sizeof(rre->top_bracket));
1427          rre->top_backref =
1428            (pcre_uint16)byteflip(rre->top_backref, sizeof(rre->top_backref));
1429          rre->first_byte =
1430            (pcre_uint16)byteflip(rre->first_byte, sizeof(rre->first_byte));
1431          rre->req_byte =
1432            (pcre_uint16)byteflip(rre->req_byte, sizeof(rre->req_byte));
1433          rre->name_table_offset = (pcre_uint16)byteflip(rre->name_table_offset,
1434            sizeof(rre->name_table_offset));
1435          rre->name_entry_size = (pcre_uint16)byteflip(rre->name_entry_size,
1436            sizeof(rre->name_entry_size));
1437          rre->name_count = (pcre_uint16)byteflip(rre->name_count,
1438            sizeof(rre->name_count));
1439    
1440          if (extra != NULL)
1441            {
1442            pcre_study_data *rsd = (pcre_study_data *)(extra->study_data);
1443            rsd->size = byteflip(rsd->size, sizeof(rsd->size));
1444            rsd->options = byteflip(rsd->options, sizeof(rsd->options));
1445            }
1446        }        }
1447    
1448      /* Compilation succeeded; print data if required */      /* Extract information from the compiled data if required */
1449    
1450      if (showinfo || do_debug)      SHOW_INFO:
1451    
1452        if (do_debug)
1453        {        {
1454        int first_char, count;        fprintf(outfile, "------------------------------------------------------------------\n");
1455          pcre_printint(re, outfile, debug_lengths);
1456          }
1457    
1458        if (debug || do_debug) print_internals(re);      if (do_showinfo)
1459          {
1460          unsigned long int get_options, all_options;
1461    #if !defined NOINFOCHECK
1462          int old_first_char, old_options, old_count;
1463    #endif
1464          int count, backrefmax, first_char, need_char, okpartial, jchanged,
1465            hascrorlf;
1466          int nameentrysize, namecount;
1467          const uschar *nametable;
1468    
1469          new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1470          new_info(re, NULL, PCRE_INFO_SIZE, &size);
1471          new_info(re, NULL, PCRE_INFO_CAPTURECOUNT, &count);
1472          new_info(re, NULL, PCRE_INFO_BACKREFMAX, &backrefmax);
1473          new_info(re, NULL, PCRE_INFO_FIRSTBYTE, &first_char);
1474          new_info(re, NULL, PCRE_INFO_LASTLITERAL, &need_char);
1475          new_info(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &nameentrysize);
1476          new_info(re, NULL, PCRE_INFO_NAMECOUNT, &namecount);
1477          new_info(re, NULL, PCRE_INFO_NAMETABLE, (void *)&nametable);
1478          new_info(re, NULL, PCRE_INFO_OKPARTIAL, &okpartial);
1479          new_info(re, NULL, PCRE_INFO_JCHANGED, &jchanged);
1480          new_info(re, NULL, PCRE_INFO_HASCRORLF, &hascrorlf);
1481    
1482        count = pcre_info(re, &options, &first_char);  #if !defined NOINFOCHECK
1483          old_count = pcre_info(re, &old_options, &old_first_char);
1484        if (count < 0) fprintf(outfile,        if (count < 0) fprintf(outfile,
1485          "Error %d while reading info\n", count);          "Error %d from pcre_info()\n", count);
1486        else        else
1487          {          {
1488          fprintf(outfile, "Identifying subpattern count = %d\n", count);          if (old_count != count) fprintf(outfile,
1489          if (options == 0) fprintf(outfile, "No options\n");            "Count disagreement: pcre_fullinfo=%d pcre_info=%d\n", count,
1490            else fprintf(outfile, "Options:%s%s%s%s%s%s%s\n",              old_count);
1491              ((options & PCRE_ANCHORED) != 0)? " anchored" : "",  
1492              ((options & PCRE_CASELESS) != 0)? " caseless" : "",          if (old_first_char != first_char) fprintf(outfile,
1493              ((options & PCRE_EXTENDED) != 0)? " extended" : "",            "First char disagreement: pcre_fullinfo=%d pcre_info=%d\n",
1494              ((options & PCRE_MULTILINE) != 0)? " multiline" : "",              first_char, old_first_char);
1495              ((options & PCRE_DOTALL) != 0)? " dotall" : "",  
1496              ((options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",          if (old_options != (int)get_options) fprintf(outfile,
1497              ((options & PCRE_EXTRA) != 0)? " extra" : "");            "Options disagreement: pcre_fullinfo=%ld pcre_info=%d\n",
1498          if (first_char == -1)              get_options, old_options);
1499            {          }
1500            fprintf(outfile, "First char at start or follows \\n\n");  #endif
1501            }  
1502          else if (first_char < 0)        if (size != regex_gotten_store) fprintf(outfile,
1503            "Size disagreement: pcre_fullinfo=%d call to malloc for %d\n",
1504            (int)size, (int)regex_gotten_store);
1505    
1506          fprintf(outfile, "Capturing subpattern count = %d\n", count);
1507          if (backrefmax > 0)
1508            fprintf(outfile, "Max back reference = %d\n", backrefmax);
1509    
1510          if (namecount > 0)
1511            {
1512            fprintf(outfile, "Named capturing subpatterns:\n");
1513            while (namecount-- > 0)
1514            {            {
1515            fprintf(outfile, "No first char\n");            fprintf(outfile, "  %s %*s%3d\n", nametable + 2,
1516                nameentrysize - 3 - (int)strlen((char *)nametable + 2), "",
1517                GET2(nametable, 0));
1518              nametable += nameentrysize;
1519            }            }
1520            }
1521    
1522          if (!okpartial) fprintf(outfile, "Partial matching not supported\n");
1523          if (hascrorlf) fprintf(outfile, "Contains explicit CR or LF match\n");
1524    
1525          all_options = ((real_pcre *)re)->options;
1526          if (do_flip) all_options = byteflip(all_options, sizeof(all_options));
1527    
1528          if (get_options == 0) fprintf(outfile, "No options\n");
1529            else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
1530              ((get_options & PCRE_ANCHORED) != 0)? " anchored" : "",
1531              ((get_options & PCRE_CASELESS) != 0)? " caseless" : "",
1532              ((get_options & PCRE_EXTENDED) != 0)? " extended" : "",
1533              ((get_options & PCRE_MULTILINE) != 0)? " multiline" : "",
1534              ((get_options & PCRE_FIRSTLINE) != 0)? " firstline" : "",
1535              ((get_options & PCRE_DOTALL) != 0)? " dotall" : "",
1536              ((get_options & PCRE_BSR_ANYCRLF) != 0)? " bsr_anycrlf" : "",
1537              ((get_options & PCRE_BSR_UNICODE) != 0)? " bsr_unicode" : "",
1538              ((get_options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
1539              ((get_options & PCRE_EXTRA) != 0)? " extra" : "",
1540              ((get_options & PCRE_UNGREEDY) != 0)? " ungreedy" : "",
1541              ((get_options & PCRE_NO_AUTO_CAPTURE) != 0)? " no_auto_capture" : "",
1542              ((get_options & PCRE_UTF8) != 0)? " utf8" : "",
1543              ((get_options & PCRE_NO_UTF8_CHECK) != 0)? " no_utf8_check" : "",
1544              ((get_options & PCRE_DUPNAMES) != 0)? " dupnames" : "");
1545    
1546          if (jchanged) fprintf(outfile, "Duplicate name status changes\n");
1547    
1548          switch (get_options & PCRE_NEWLINE_BITS)
1549            {
1550            case PCRE_NEWLINE_CR:
1551            fprintf(outfile, "Forced newline sequence: CR\n");
1552            break;
1553    
1554            case PCRE_NEWLINE_LF:
1555            fprintf(outfile, "Forced newline sequence: LF\n");
1556            break;
1557    
1558            case PCRE_NEWLINE_CRLF:
1559            fprintf(outfile, "Forced newline sequence: CRLF\n");
1560            break;
1561    
1562            case PCRE_NEWLINE_ANYCRLF:
1563            fprintf(outfile, "Forced newline sequence: ANYCRLF\n");
1564            break;
1565    
1566            case PCRE_NEWLINE_ANY:
1567            fprintf(outfile, "Forced newline sequence: ANY\n");
1568            break;
1569    
1570            default:
1571            break;
1572            }
1573    
1574          if (first_char == -1)
1575            {
1576            fprintf(outfile, "First char at start or follows newline\n");
1577            }
1578          else if (first_char < 0)
1579            {
1580            fprintf(outfile, "No first char\n");
1581            }
1582          else
1583            {
1584            int ch = first_char & 255;
1585            const char *caseless = ((first_char & REQ_CASELESS) == 0)?
1586              "" : " (caseless)";
1587            if (PRINTHEX(ch))
1588              fprintf(outfile, "First char = \'%c\'%s\n", ch, caseless);
1589            else
1590              fprintf(outfile, "First char = %d%s\n", ch, caseless);
1591            }
1592    
1593          if (need_char < 0)
1594            {
1595            fprintf(outfile, "No need char\n");
1596            }
1597          else
1598            {
1599            int ch = need_char & 255;
1600            const char *caseless = ((need_char & REQ_CASELESS) == 0)?
1601              "" : " (caseless)";
1602            if (PRINTHEX(ch))
1603              fprintf(outfile, "Need char = \'%c\'%s\n", ch, caseless);
1604            else
1605              fprintf(outfile, "Need char = %d%s\n", ch, caseless);
1606            }
1607    
1608          /* Don't output study size; at present it is in any case a fixed
1609          value, but it varies, depending on the computer architecture, and
1610          so messes up the test suite. (And with the /F option, it might be
1611          flipped.) */
1612    
1613          if (do_study)
1614            {
1615            if (extra == NULL)
1616              fprintf(outfile, "Study returned NULL\n");
1617          else          else
1618            {            {
1619            if (isprint(first_char))            uschar *start_bits = NULL;
1620              fprintf(outfile, "First char = \'%c\'\n", first_char);            new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits);
1621    
1622              if (start_bits == NULL)
1623                fprintf(outfile, "No starting byte set\n");
1624            else            else
1625              fprintf(outfile, "First char = %d\n", first_char);              {
1626                int i;
1627                int c = 24;
1628                fprintf(outfile, "Starting byte set: ");
1629                for (i = 0; i < 256; i++)
1630                  {
1631                  if ((start_bits[i/8] & (1<<(i&7))) != 0)
1632                    {
1633                    if (c > 75)
1634                      {
1635                      fprintf(outfile, "\n  ");
1636                      c = 2;
1637                      }
1638                    if (PRINTHEX(i) && i != ' ')
1639                      {
1640                      fprintf(outfile, "%c ", i);
1641                      c += 2;
1642                      }
1643                    else
1644                      {
1645                      fprintf(outfile, "\\x%02x ", i);
1646                      c += 5;
1647                      }
1648                    }
1649                  }
1650                fprintf(outfile, "\n");
1651                }
1652            }            }
1653          }          }
1654        }        }
1655    
1656      /* If /S was present, study the regexp to generate additional info to      /* If the '>' option was present, we write out the regex to a file, and
1657      help with the matching. */      that is all. The first 8 bytes of the file are the regex length and then
1658        the study length, in big-endian order. */
1659    
1660      if (do_study)      if (to_file != NULL)
1661        {        {
1662        if (timeit)        FILE *f = fopen((char *)to_file, "wb");
1663          if (f == NULL)
1664          {          {
1665          register int i;          fprintf(outfile, "Unable to open %s: %s\n", to_file, strerror(errno));
         clock_t time_taken;  
         clock_t start_time = clock();  
         for (i = 0; i < 4000; i++)  
           extra = pcre_study(re, study_options, &error);  
         time_taken = clock() - start_time;  
         if (extra != NULL) free(extra);  
         fprintf(outfile, "  Study time %.2f milliseconds\n",  
           ((double)time_taken)/(4 * CLOCKS_PER_SEC));  
1666          }          }
1667          else
       extra = pcre_study(re, study_options, &error);  
       if (error != NULL)  
         fprintf(outfile, "Failed to study: %s\n", error);  
       else if (extra == NULL)  
         fprintf(outfile, "Study returned NULL\n");  
   
       /* This looks at internal information. A bit kludgy to do it this  
       way, but it is useful for testing. */  
   
       else if (showinfo || do_debug)  
1668          {          {
1669          real_pcre_extra *xx = (real_pcre_extra *)extra;          uschar sbuf[8];
1670          if ((xx->options & PCRE_STUDY_MAPPED) == 0)          sbuf[0] = (uschar)((true_size >> 24) & 255);
1671            fprintf(outfile, "No starting character set\n");          sbuf[1] = (uschar)((true_size >> 16) & 255);
1672            sbuf[2] = (uschar)((true_size >>  8) & 255);
1673            sbuf[3] = (uschar)((true_size) & 255);
1674    
1675            sbuf[4] = (uschar)((true_study_size >> 24) & 255);
1676            sbuf[5] = (uschar)((true_study_size >> 16) & 255);
1677            sbuf[6] = (uschar)((true_study_size >>  8) & 255);
1678            sbuf[7] = (uschar)((true_study_size) & 255);
1679    
1680            if (fwrite(sbuf, 1, 8, f) < 8 ||
1681                fwrite(re, 1, true_size, f) < true_size)
1682              {
1683              fprintf(outfile, "Write error on %s: %s\n", to_file, strerror(errno));
1684              }
1685          else          else
1686            {            {
1687            int i;            fprintf(outfile, "Compiled regex written to %s\n", to_file);
1688            int c = 24;            if (extra != NULL)
           fprintf(outfile, "Starting character set: ");  
           for (i = 0; i < 256; i++)  
1689              {              {
1690              if ((xx->start_bits[i/8] & (1<<(i%8))) != 0)              if (fwrite(extra->study_data, 1, true_study_size, f) <
1691                    true_study_size)
1692                {                {
1693                if (c > 75)                fprintf(outfile, "Write error on %s: %s\n", to_file,
1694                  {                  strerror(errno));
                 fprintf(outfile, "\n  ");  
                 c = 2;  
                 }  
               if (isprint(i) && i != ' ')  
                 {  
                 fprintf(outfile, "%c ", i);  
                 c += 2;  
                 }  
               else  
                 {  
                 fprintf(outfile, "\\x%02x ", i);  
                 c += 5;  
                 }  
1695                }                }
1696                else fprintf(outfile, "Study data written to %s\n", to_file);
1697    
1698              }              }
           fprintf(outfile, "\n");  
1699            }            }
1700            fclose(f);
1701          }          }
1702    
1703          new_free(re);
1704          if (extra != NULL) new_free(extra);
1705          if (tables != NULL) new_free((void *)tables);
1706          continue;  /* With next regex */
1707        }        }
1708      }      }        /* End of non-POSIX compile */
1709    
1710    /* Read data lines and test them */    /* Read data lines and test them */
1711    
1712    for (;;)    for (;;)
1713      {      {
1714      unsigned char *pp;      uschar *q;
1715        uschar *bptr;
1716        int *use_offsets = offsets;
1717        int use_size_offsets = size_offsets;
1718        int callout_data = 0;
1719        int callout_data_set = 0;
1720      int count, c;      int count, c;
1721      int offsets[30];      int copystrings = 0;
1722      int size_offsets = sizeof(offsets)/sizeof(int);      int find_match_limit = default_find_match_limit;
1723        int getstrings = 0;
1724        int getlist = 0;
1725        int gmatched = 0;
1726        int start_offset = 0;
1727        int g_notempty = 0;
1728        int use_dfa = 0;
1729    
1730      options = 0;      options = 0;
1731    
1732      if (infile == stdin) printf("  data> ");      *copynames = 0;
1733      if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) goto END_OFF;      *getnames = 0;
1734      if (infile != stdin) fprintf(outfile, (char *)buffer);  
1735        copynamesptr = copynames;
1736        getnamesptr = getnames;
1737    
1738        pcre_callout = callout;
1739        first_callout = 1;
1740        callout_extra = 0;
1741        callout_count = 0;
1742        callout_fail_count = 999999;
1743        callout_fail_id = -1;
1744        show_malloc = 0;
1745    
1746        if (extra != NULL) extra->flags &=
1747          ~(PCRE_EXTRA_MATCH_LIMIT|PCRE_EXTRA_MATCH_LIMIT_RECURSION);
1748    
1749        len = 0;
1750        for (;;)
1751          {
1752          if (extend_inputline(infile, buffer + len, "data> ") == NULL)
1753            {
1754            if (len > 0) break;
1755            done = 1;
1756            goto CONTINUE;
1757            }
1758          if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1759          len = (int)strlen((char *)buffer);
1760          if (buffer[len-1] == '\n') break;
1761          }
1762    
     len = (int)strlen((char *)buffer);  
1763      while (len > 0 && isspace(buffer[len-1])) len--;      while (len > 0 && isspace(buffer[len-1])) len--;
1764      buffer[len] = 0;      buffer[len] = 0;
1765      if (len == 0) break;      if (len == 0) break;
# Line 599  for (;;) Line 1767  for (;;)
1767      p = buffer;      p = buffer;
1768      while (isspace(*p)) p++;      while (isspace(*p)) p++;
1769    
1770      pp = dbuffer;      bptr = q = dbuffer;
1771      while ((c = *p++) != 0)      while ((c = *p++) != 0)
1772        {        {
1773        int i = 0;        int i = 0;
1774        int n = 0;        int n = 0;
1775    
1776        if (c == '\\') switch ((c = *p++))        if (c == '\\') switch ((c = *p++))
1777          {          {
1778          case 'a': c =    7; break;          case 'a': c =    7; break;
# Line 620  for (;;) Line 1789  for (;;)
1789          c -= '0';          c -= '0';
1790          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
1791            c = c * 8 + *p++ - '0';            c = c * 8 + *p++ - '0';
1792    
1793    #if !defined NOUTF8
1794            if (use_utf8 && c > 255)
1795              {
1796              unsigned char buff8[8];
1797              int ii, utn;
1798              utn = ord2utf8(c, buff8);
1799              for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1800              c = buff8[ii];   /* Last byte */
1801              }
1802    #endif
1803          break;          break;
1804    
1805          case 'x':          case 'x':
1806    
1807            /* Handle \x{..} specially - new Perl thing for utf8 */
1808    
1809    #if !defined NOUTF8
1810            if (*p == '{')
1811              {
1812              unsigned char *pt = p;
1813              c = 0;
1814              while (isxdigit(*(++pt)))
1815                c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'W');
1816              if (*pt == '}')
1817                {
1818                unsigned char buff8[8];
1819                int ii, utn;
1820                if (use_utf8)
1821                  {
1822                  utn = ord2utf8(c, buff8);
1823                  for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1824                  c = buff8[ii];   /* Last byte */
1825                  }
1826                else
1827                 {
1828                 if (c > 255)
1829                   fprintf(outfile, "** Character \\x{%x} is greater than 255 and "
1830                     "UTF-8 mode is not enabled.\n"
1831                     "** Truncation will probably give the wrong result.\n", c);
1832                 }
1833                p = pt + 1;
1834                break;
1835                }
1836              /* Not correct form; fall through */
1837              }
1838    #endif
1839    
1840            /* Ordinary \x */
1841    
1842          c = 0;          c = 0;
1843          while (i++ < 2 && isxdigit(*p))          while (i++ < 2 && isxdigit(*p))
1844            {            {
# Line 631  for (;;) Line 1847  for (;;)
1847            }            }
1848          break;          break;
1849    
1850          case 0:   /* Allows for an empty line */          case 0:   /* \ followed by EOF allows for an empty line */
1851          p--;          p--;
1852          continue;          continue;
1853    
1854            case '>':
1855            while(isdigit(*p)) start_offset = start_offset * 10 + *p++ - '0';
1856            continue;
1857    
1858          case 'A':  /* Option setting */          case 'A':  /* Option setting */
1859          options |= PCRE_ANCHORED;          options |= PCRE_ANCHORED;
1860          continue;          continue;
# Line 643  for (;;) Line 1863  for (;;)
1863          options |= PCRE_NOTBOL;          options |= PCRE_NOTBOL;
1864          continue;          continue;
1865    
1866          case 'E':          case 'C':
1867          options |= PCRE_DOLLAR_ENDONLY;          if (isdigit(*p))    /* Set copy string */
1868              {
1869              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1870              copystrings |= 1 << n;
1871              }
1872            else if (isalnum(*p))
1873              {
1874              uschar *npp = copynamesptr;
1875              while (isalnum(*p)) *npp++ = *p++;
1876              *npp++ = 0;
1877              *npp = 0;
1878              n = pcre_get_stringnumber(re, (char *)copynamesptr);
1879              if (n < 0)
1880                fprintf(outfile, "no parentheses with name \"%s\"\n", copynamesptr);
1881              copynamesptr = npp;
1882              }
1883            else if (*p == '+')
1884              {
1885              callout_extra = 1;
1886              p++;
1887              }
1888            else if (*p == '-')
1889              {
1890              pcre_callout = NULL;
1891              p++;
1892              }
1893            else if (*p == '!')
1894              {
1895              callout_fail_id = 0;
1896              p++;
1897              while(isdigit(*p))
1898                callout_fail_id = callout_fail_id * 10 + *p++ - '0';
1899              callout_fail_count = 0;
1900              if (*p == '!')
1901                {
1902                p++;
1903                while(isdigit(*p))
1904                  callout_fail_count = callout_fail_count * 10 + *p++ - '0';
1905                }
1906              }
1907            else if (*p == '*')
1908              {
1909              int sign = 1;
1910              callout_data = 0;
1911              if (*(++p) == '-') { sign = -1; p++; }
1912              while(isdigit(*p))
1913                callout_data = callout_data * 10 + *p++ - '0';
1914              callout_data *= sign;
1915              callout_data_set = 1;
1916              }
1917            continue;
1918    
1919    #if !defined NODFA
1920            case 'D':
1921    #if !defined NOPOSIX
1922            if (posix || do_posix)
1923              printf("** Can't use dfa matching in POSIX mode: \\D ignored\n");
1924            else
1925    #endif
1926              use_dfa = 1;
1927            continue;
1928    
1929            case 'F':
1930            options |= PCRE_DFA_SHORTEST;
1931            continue;
1932    #endif
1933    
1934            case 'G':
1935            if (isdigit(*p))
1936              {
1937              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1938              getstrings |= 1 << n;
1939              }
1940            else if (isalnum(*p))
1941              {
1942              uschar *npp = getnamesptr;
1943              while (isalnum(*p)) *npp++ = *p++;
1944              *npp++ = 0;
1945              *npp = 0;
1946              n = pcre_get_stringnumber(re, (char *)getnamesptr);
1947              if (n < 0)
1948                fprintf(outfile, "no parentheses with name \"%s\"\n", getnamesptr);
1949              getnamesptr = npp;
1950              }
1951          continue;          continue;
1952    
1953          case 'I':          case 'L':
1954          options |= PCRE_CASELESS;          getlist = 1;
1955          continue;          continue;
1956    
1957          case 'M':          case 'M':
1958          options |= PCRE_MULTILINE;          find_match_limit = 1;
1959          continue;          continue;
1960    
1961          case 'S':          case 'N':
1962          options |= PCRE_DOTALL;          options |= PCRE_NOTEMPTY;
1963          continue;          continue;
1964    
1965          case 'O':          case 'O':
1966          while(isdigit(*p)) n = n * 10 + *p++ - '0';          while(isdigit(*p)) n = n * 10 + *p++ - '0';
1967          if (n <= sizeof(offsets)/sizeof(int)) size_offsets = n;          if (n > size_offsets_max)
1968              {
1969              size_offsets_max = n;
1970              free(offsets);
1971              use_offsets = offsets = (int *)malloc(size_offsets_max * sizeof(int));
1972              if (offsets == NULL)
1973                {
1974                printf("** Failed to get %d bytes of memory for offsets vector\n",
1975                  (int)(size_offsets_max * sizeof(int)));
1976                yield = 1;
1977                goto EXIT;
1978                }
1979              }
1980            use_size_offsets = n;
1981            if (n == 0) use_offsets = NULL;   /* Ensures it can't write to it */
1982            continue;
1983    
1984            case 'P':
1985            options |= PCRE_PARTIAL;
1986            continue;
1987    
1988            case 'Q':
1989            while(isdigit(*p)) n = n * 10 + *p++ - '0';
1990            if (extra == NULL)
1991              {
1992              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
1993              extra->flags = 0;
1994              }
1995            extra->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
1996            extra->match_limit_recursion = n;
1997            continue;
1998    
1999            case 'q':
2000            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2001            if (extra == NULL)
2002              {
2003              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2004              extra->flags = 0;
2005              }
2006            extra->flags |= PCRE_EXTRA_MATCH_LIMIT;
2007            extra->match_limit = n;
2008            continue;
2009    
2010    #if !defined NODFA
2011            case 'R':
2012            options |= PCRE_DFA_RESTART;
2013            continue;
2014    #endif
2015    
2016            case 'S':
2017            show_malloc = 1;
2018            continue;
2019    
2020            case 'Y':
2021            options |= PCRE_NO_START_OPTIMIZE;
2022          continue;          continue;
2023    
2024          case 'Z':          case 'Z':
2025          options |= PCRE_NOTEOL;          options |= PCRE_NOTEOL;
2026          continue;          continue;
2027    
2028            case '?':
2029            options |= PCRE_NO_UTF8_CHECK;
2030            continue;
2031    
2032            case '<':
2033              {
2034              int x = check_newline(p, outfile);
2035              if (x == 0) goto NEXT_DATA;
2036              options |= x;
2037              while (*p++ != '>');
2038              }
2039            continue;
2040          }          }
2041        *pp++ = c;        *q++ = c;
2042          }
2043        *q = 0;
2044        len = q - dbuffer;
2045    
2046        /* Move the data to the end of the buffer so that a read over the end of
2047        the buffer will be seen by valgrind, even if it doesn't cause a crash. If
2048        we are using the POSIX interface, we must include the terminating zero. */
2049    
2050    #if !defined NOPOSIX
2051        if (posix || do_posix)
2052          {
2053          memmove(bptr + buffer_size - len - 1, bptr, len + 1);
2054          bptr += buffer_size - len - 1;
2055          }
2056        else
2057    #endif
2058          {
2059          memmove(bptr + buffer_size - len, bptr, len);
2060          bptr += buffer_size - len;
2061          }
2062    
2063        if ((all_use_dfa || use_dfa) && find_match_limit)
2064          {
2065          printf("**Match limit not relevant for DFA matching: ignored\n");
2066          find_match_limit = 0;
2067        }        }
     *pp = 0;  
     len = pp - dbuffer;  
2068    
2069      /* Handle matching via the POSIX interface, which does not      /* Handle matching via the POSIX interface, which does not
2070      support timing. */      support timing or playing with the match limit or callout data. */
2071    
2072    #if !defined NOPOSIX
2073      if (posix || do_posix)      if (posix || do_posix)
2074        {        {
2075        int rc;        int rc;
2076        int eflags = 0;        int eflags = 0;
2077        regmatch_t pmatch[30];        regmatch_t *pmatch = NULL;
2078          if (use_size_offsets > 0)
2079            pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * use_size_offsets);
2080        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
2081        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
2082          if ((options & PCRE_NOTEMPTY) != 0) eflags |= REG_NOTEMPTY;
2083    
2084        rc = regexec(&preg, (char *)dbuffer, sizeof(pmatch)/sizeof(regmatch_t),        rc = regexec(&preg, (const char *)bptr, use_size_offsets, pmatch, eflags);
         pmatch, eflags);  
2085    
2086        if (rc != 0)        if (rc != 0)
2087          {          {
2088          (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));          (void)regerror(rc, &preg, (char *)buffer, buffer_size);
2089          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
2090          }          }
2091          else if ((((const pcre *)preg.re_pcre)->options & PCRE_NO_AUTO_CAPTURE)
2092                  != 0)
2093            {
2094            fprintf(outfile, "Matched with REG_NOSUB\n");
2095            }
2096        else        else
2097          {          {
2098          int i;          size_t i;
2099          for (i = 0; i < sizeof(pmatch)/sizeof(regmatch_t); i++)          for (i = 0; i < (size_t)use_size_offsets; i++)
2100            {            {
2101            if (pmatch[i].rm_so >= 0)            if (pmatch[i].rm_so >= 0)
2102              {              {
2103              fprintf(outfile, "%2d: ", i);              fprintf(outfile, "%2d: ", (int)i);
2104              pchars(dbuffer + pmatch[i].rm_so,              (void)pchars(dbuffer + pmatch[i].rm_so,
2105                pmatch[i].rm_eo - pmatch[i].rm_so);                pmatch[i].rm_eo - pmatch[i].rm_so, outfile);
2106              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2107                if (i == 0 && do_showrest)
2108                  {
2109                  fprintf(outfile, " 0+ ");
2110                  (void)pchars(dbuffer + pmatch[i].rm_eo, len - pmatch[i].rm_eo,
2111                    outfile);
2112                  fprintf(outfile, "\n");
2113                  }
2114              }              }
2115            }            }
2116          }          }
2117          free(pmatch);
2118        }        }
2119    
2120      /* Handle matching via the native interface */      /* Handle matching via the native interface - repeats for /g and /G */
2121    
2122      else      else
2123    #endif  /* !defined NOPOSIX */
2124    
2125        for (;; gmatched++)    /* Loop for /g or /G */
2126        {        {
2127        if (timeit)        if (timeitm > 0)
2128          {          {
2129          register int i;          register int i;
2130          clock_t time_taken;          clock_t time_taken;
2131          clock_t start_time = clock();          clock_t start_time = clock();
2132          for (i = 0; i < 4000; i++)  
2133            count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,  #if !defined NODFA
2134              size_offsets);          if (all_use_dfa || use_dfa)
2135              {
2136              int workspace[1000];
2137              for (i = 0; i < timeitm; i++)
2138                count = pcre_dfa_exec(re, NULL, (char *)bptr, len, start_offset,
2139                  options | g_notempty, use_offsets, use_size_offsets, workspace,
2140                  sizeof(workspace)/sizeof(int));
2141              }
2142            else
2143    #endif
2144    
2145            for (i = 0; i < timeitm; i++)
2146              count = pcre_exec(re, extra, (char *)bptr, len,
2147                start_offset, options | g_notempty, use_offsets, use_size_offsets);
2148    
2149          time_taken = clock() - start_time;          time_taken = clock() - start_time;
2150          fprintf(outfile, "Execute time %.2f milliseconds\n",          fprintf(outfile, "Execute time %.4f milliseconds\n",
2151            ((double)time_taken)/(4 * CLOCKS_PER_SEC));            (((double)time_taken * 1000.0) / (double)timeitm) /
2152                (double)CLOCKS_PER_SEC);
2153            }
2154    
2155          /* If find_match_limit is set, we want to do repeated matches with
2156          varying limits in order to find the minimum value for the match limit and
2157          for the recursion limit. */
2158    
2159          if (find_match_limit)
2160            {
2161            if (extra == NULL)
2162              {
2163              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2164              extra->flags = 0;
2165              }
2166    
2167            (void)check_match_limit(re, extra, bptr, len, start_offset,
2168              options|g_notempty, use_offsets, use_size_offsets,
2169              PCRE_EXTRA_MATCH_LIMIT, &(extra->match_limit),
2170              PCRE_ERROR_MATCHLIMIT, "match()");
2171    
2172            count = check_match_limit(re, extra, bptr, len, start_offset,
2173              options|g_notempty, use_offsets, use_size_offsets,
2174              PCRE_EXTRA_MATCH_LIMIT_RECURSION, &(extra->match_limit_recursion),
2175              PCRE_ERROR_RECURSIONLIMIT, "match() recursion");
2176            }
2177    
2178          /* If callout_data is set, use the interface with additional data */
2179    
2180          else if (callout_data_set)
2181            {
2182            if (extra == NULL)
2183              {
2184              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2185              extra->flags = 0;
2186              }
2187            extra->flags |= PCRE_EXTRA_CALLOUT_DATA;
2188            extra->callout_data = &callout_data;
2189            count = pcre_exec(re, extra, (char *)bptr, len, start_offset,
2190              options | g_notempty, use_offsets, use_size_offsets);
2191            extra->flags &= ~PCRE_EXTRA_CALLOUT_DATA;
2192          }          }
2193    
2194        count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,        /* The normal case is just to do the match once, with the default
2195          size_offsets);        value of match_limit. */
2196    
2197    #if !defined NODFA
2198          else if (all_use_dfa || use_dfa)
2199            {
2200            int workspace[1000];
2201            count = pcre_dfa_exec(re, NULL, (char *)bptr, len, start_offset,
2202              options | g_notempty, use_offsets, use_size_offsets, workspace,
2203              sizeof(workspace)/sizeof(int));
2204            if (count == 0)
2205              {
2206              fprintf(outfile, "Matched, but too many subsidiary matches\n");
2207              count = use_size_offsets/2;
2208              }
2209            }
2210    #endif
2211    
2212        if (count == 0)        else
2213          {          {
2214          fprintf(outfile, "Matched, but too many substrings\n");          count = pcre_exec(re, extra, (char *)bptr, len,
2215          count = size_offsets/2;            start_offset, options | g_notempty, use_offsets, use_size_offsets);
2216            if (count == 0)
2217              {
2218              fprintf(outfile, "Matched, but too many substrings\n");
2219              count = use_size_offsets/3;
2220              }
2221          }          }
2222    
2223          /* Matched */
2224    
2225        if (count >= 0)        if (count >= 0)
2226          {          {
2227          int i;          int i, maxcount;
2228          count *= 2;  
2229          for (i = 0; i < count; i += 2)  #if !defined NODFA
2230            if (all_use_dfa || use_dfa) maxcount = use_size_offsets/2; else
2231    #endif
2232              maxcount = use_size_offsets/3;
2233    
2234            /* This is a check against a lunatic return value. */
2235    
2236            if (count > maxcount)
2237              {
2238              fprintf(outfile,
2239                "** PCRE error: returned count %d is too big for offset size %d\n",
2240                count, use_size_offsets);
2241              count = use_size_offsets/3;
2242              if (do_g || do_G)
2243                {
2244                fprintf(outfile, "** /%c loop abandoned\n", do_g? 'g' : 'G');
2245                do_g = do_G = FALSE;        /* Break g/G loop */
2246                }
2247              }
2248    
2249            for (i = 0; i < count * 2; i += 2)
2250            {            {
2251            if (offsets[i] < 0)            if (use_offsets[i] < 0)
2252              fprintf(outfile, "%2d: <unset>\n", i/2);              fprintf(outfile, "%2d: <unset>\n", i/2);
2253            else            else
2254              {              {
2255              fprintf(outfile, "%2d: ", i/2);              fprintf(outfile, "%2d: ", i/2);
2256              pchars(dbuffer + offsets[i], offsets[i+1] - offsets[i]);              (void)pchars(bptr + use_offsets[i],
2257                  use_offsets[i+1] - use_offsets[i], outfile);
2258              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2259                if (i == 0)
2260                  {
2261                  if (do_showrest)
2262                    {
2263                    fprintf(outfile, " 0+ ");
2264                    (void)pchars(bptr + use_offsets[i+1], len - use_offsets[i+1],
2265                      outfile);
2266                    fprintf(outfile, "\n");
2267                    }
2268                  }
2269                }
2270              }
2271    
2272            for (i = 0; i < 32; i++)
2273              {
2274              if ((copystrings & (1 << i)) != 0)
2275                {
2276                char copybuffer[256];
2277                int rc = pcre_copy_substring((char *)bptr, use_offsets, count,
2278                  i, copybuffer, sizeof(copybuffer));
2279                if (rc < 0)
2280                  fprintf(outfile, "copy substring %d failed %d\n", i, rc);
2281                else
2282                  fprintf(outfile, "%2dC %s (%d)\n", i, copybuffer, rc);
2283                }
2284              }
2285    
2286            for (copynamesptr = copynames;
2287                 *copynamesptr != 0;
2288                 copynamesptr += (int)strlen((char*)copynamesptr) + 1)
2289              {
2290              char copybuffer[256];
2291              int rc = pcre_copy_named_substring(re, (char *)bptr, use_offsets,
2292                count, (char *)copynamesptr, copybuffer, sizeof(copybuffer));
2293              if (rc < 0)
2294                fprintf(outfile, "copy substring %s failed %d\n", copynamesptr, rc);
2295              else
2296                fprintf(outfile, "  C %s (%d) %s\n", copybuffer, rc, copynamesptr);
2297              }
2298    
2299            for (i = 0; i < 32; i++)
2300              {
2301              if ((getstrings & (1 << i)) != 0)
2302                {
2303                const char *substring;
2304                int rc = pcre_get_substring((char *)bptr, use_offsets, count,
2305                  i, &substring);
2306                if (rc < 0)
2307                  fprintf(outfile, "get substring %d failed %d\n", i, rc);
2308                else
2309                  {
2310                  fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
2311                  pcre_free_substring(substring);
2312                  }
2313                }
2314              }
2315    
2316            for (getnamesptr = getnames;
2317                 *getnamesptr != 0;
2318                 getnamesptr += (int)strlen((char*)getnamesptr) + 1)
2319              {
2320              const char *substring;
2321              int rc = pcre_get_named_substring(re, (char *)bptr, use_offsets,
2322                count, (char *)getnamesptr, &substring);
2323              if (rc < 0)
2324                fprintf(outfile, "copy substring %s failed %d\n", getnamesptr, rc);
2325              else
2326                {
2327                fprintf(outfile, "  G %s (%d) %s\n", substring, rc, getnamesptr);
2328                pcre_free_substring(substring);
2329              }              }
2330            }            }
2331    
2332            if (getlist)
2333              {
2334              const char **stringlist;
2335              int rc = pcre_get_substring_list((char *)bptr, use_offsets, count,
2336                &stringlist);
2337              if (rc < 0)
2338                fprintf(outfile, "get substring list failed %d\n", rc);
2339              else
2340                {
2341                for (i = 0; i < count; i++)
2342                  fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
2343                if (stringlist[i] != NULL)
2344                  fprintf(outfile, "string list not terminated by NULL\n");
2345                /* free((void *)stringlist); */
2346                pcre_free_substring_list(stringlist);
2347                }
2348              }
2349            }
2350    
2351          /* There was a partial match */
2352    
2353          else if (count == PCRE_ERROR_PARTIAL)
2354            {
2355            fprintf(outfile, "Partial match");
2356    #if !defined NODFA
2357            if ((all_use_dfa || use_dfa) && use_size_offsets > 2)
2358              fprintf(outfile, ": %.*s", use_offsets[1] - use_offsets[0],
2359                bptr + use_offsets[0]);
2360    #endif
2361            fprintf(outfile, "\n");
2362            break;  /* Out of the /g loop */
2363          }          }
2364    
2365          /* Failed to match. If this is a /g or /G loop and we previously set
2366          g_notempty after a null match, this is not necessarily the end. We want
2367          to advance the start offset, and continue. We won't be at the end of the
2368          string - that was checked before setting g_notempty.
2369    
2370          Complication arises in the case when the newline option is "any" or
2371          "anycrlf". If the previous match was at the end of a line terminated by
2372          CRLF, an advance of one character just passes the \r, whereas we should
2373          prefer the longer newline sequence, as does the code in pcre_exec().
2374          Fudge the offset value to achieve this.
2375    
2376          Otherwise, in the case of UTF-8 matching, the advance must be one
2377          character, not one byte. */
2378    
2379        else        else
2380          {          {
2381          if (count == -1) fprintf(outfile, "No match\n");          if (g_notempty != 0)
2382              {
2383              int onechar = 1;
2384              unsigned int obits = ((real_pcre *)re)->options;
2385              use_offsets[0] = start_offset;
2386              if ((obits & PCRE_NEWLINE_BITS) == 0)
2387                {
2388                int d;
2389                (void)pcre_config(PCRE_CONFIG_NEWLINE, &d);
2390                /* Note that these values are always the ASCII ones, even in
2391                EBCDIC environments. CR = 13, NL = 10. */
2392                obits = (d == 13)? PCRE_NEWLINE_CR :
2393                        (d == 10)? PCRE_NEWLINE_LF :
2394                        (d == (13<<8 | 10))? PCRE_NEWLINE_CRLF :
2395                        (d == -2)? PCRE_NEWLINE_ANYCRLF :
2396                        (d == -1)? PCRE_NEWLINE_ANY : 0;
2397                }
2398              if (((obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANY ||
2399                   (obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANYCRLF)
2400                  &&
2401                  start_offset < len - 1 &&
2402                  bptr[start_offset] == '\r' &&
2403                  bptr[start_offset+1] == '\n')
2404                onechar++;
2405              else if (use_utf8)
2406                {
2407                while (start_offset + onechar < len)
2408                  {
2409                  int tb = bptr[start_offset+onechar];
2410                  if (tb <= 127) break;
2411                  tb &= 0xc0;
2412                  if (tb != 0 && tb != 0xc0) onechar++;
2413                  }
2414                }
2415              use_offsets[1] = start_offset + onechar;
2416              }
2417            else
2418              {
2419              if (count == PCRE_ERROR_NOMATCH)
2420                {
2421                if (gmatched == 0) fprintf(outfile, "No match\n");
2422                }
2423            else fprintf(outfile, "Error %d\n", count);            else fprintf(outfile, "Error %d\n", count);
2424              break;  /* Out of the /g loop */
2425              }
2426          }          }
       }  
     }  
2427    
2428          /* If not /g or /G we are done */
2429    
2430          if (!do_g && !do_G) break;
2431    
2432          /* If we have matched an empty string, first check to see if we are at
2433          the end of the subject. If so, the /g loop is over. Otherwise, mimic
2434          what Perl's /g options does. This turns out to be rather cunning. First
2435          we set PCRE_NOTEMPTY and PCRE_ANCHORED and try the match again at the
2436          same point. If this fails (picked up above) we advance to the next
2437          character. */
2438    
2439          g_notempty = 0;
2440    
2441          if (use_offsets[0] == use_offsets[1])
2442            {
2443            if (use_offsets[0] == len) break;
2444            g_notempty = PCRE_NOTEMPTY | PCRE_ANCHORED;
2445            }
2446    
2447          /* For /g, update the start offset, leaving the rest alone */
2448    
2449          if (do_g) start_offset = use_offsets[1];
2450    
2451          /* For /G, update the pointer and length */
2452    
2453          else
2454            {
2455            bptr += use_offsets[1];
2456            len -= use_offsets[1];
2457            }
2458          }  /* End of loop for /g and /G */
2459    
2460        NEXT_DATA: continue;
2461        }    /* End of loop for data lines */
2462    
2463      CONTINUE:
2464    
2465    #if !defined NOPOSIX
2466    if (posix || do_posix) regfree(&preg);    if (posix || do_posix) regfree(&preg);
2467    if (re != NULL) free(re);  #endif
2468    if (extra != NULL) free(extra);  
2469      if (re != NULL) new_free(re);
2470      if (extra != NULL) new_free(extra);
2471      if (tables != NULL)
2472        {
2473        new_free((void *)tables);
2474        setlocale(LC_CTYPE, "C");
2475        locale_set = 0;
2476        }
2477    }    }
2478    
2479  END_OFF:  if (infile == stdin) fprintf(outfile, "\n");
2480  fprintf(outfile, "\n");  
2481  return 0;  EXIT:
2482    
2483    if (infile != NULL && infile != stdin) fclose(infile);
2484    if (outfile != NULL && outfile != stdout) fclose(outfile);
2485    
2486    free(buffer);
2487    free(dbuffer);
2488    free(pbuffer);
2489    free(offsets);
2490    
2491    return yield;
2492  }  }
2493    
2494  /* End */  /* End of pcretest.c */

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