/[pcre]/code/trunk/pcretest.c
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revision 7 by nigel, Sat Feb 24 21:38:09 2007 UTC revision 535 by ph10, Thu Jun 3 19:18:24 2010 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. It needs to
122    know which case is being compiled. */
123    
124    #define COMPILING_PCRETEST
125    #include "pcre_printint.src"
126    
127    /* The definition of the macro PRINTABLE, which determines whether to print an
128    output character as-is or as a hex value when showing compiled patterns, is
129    contained in the printint.src file. We uses it here also, in cases when the
130    locale has not been explicitly changed, so as to get consistent output from
131    systems that differ in their output from isprint() even in the "C" locale. */
132    
133    #define PRINTHEX(c) (locale_set? isprint(c) : PRINTABLE(c))
134    
135    /* It is possible to compile this test program without including support for
136    testing the POSIX interface, though this is not available via the standard
137    Makefile. */
138    
139    #if !defined NOPOSIX
140  #include "pcreposix.h"  #include "pcreposix.h"
141    #endif
142    
143    /* It is also possible, for the benefit of the version currently imported into
144    Exim, to build pcretest without support for UTF8 (define NOUTF8), without the
145    interface to the DFA matcher (NODFA), and without the doublecheck of the old
146    "info" function (define NOINFOCHECK). In fact, we automatically cut out the
147    UTF8 support if PCRE is built without it. */
148    
149    #ifndef SUPPORT_UTF8
150    #ifndef NOUTF8
151    #define NOUTF8
152    #endif
153    #endif
154    
155    
156    /* Other parameters */
157    
158  #ifndef CLOCKS_PER_SEC  #ifndef CLOCKS_PER_SEC
159  #ifdef CLK_TCK  #ifdef CLK_TCK
# Line 21  Line 163 
163  #endif  #endif
164  #endif  #endif
165    
166    /* This is the default loop count for timing. */
167    
168    #define LOOPREPEAT 500000
169    
170    /* Static variables */
171    
172  static FILE *outfile;  static FILE *outfile;
173  static int log_store = 0;  static int log_store = 0;
174    static int callout_count;
175    static int callout_extra;
176    static int callout_fail_count;
177    static int callout_fail_id;
178    static int debug_lengths;
179    static int first_callout;
180    static int locale_set = 0;
181    static int show_malloc;
182    static int use_utf8;
183    static size_t gotten_store;
184    
185    /* The buffers grow automatically if very long input lines are encountered. */
186    
187    static int buffer_size = 50000;
188    static uschar *buffer = NULL;
189    static uschar *dbuffer = NULL;
190    static uschar *pbuffer = NULL;
191    
192    
193    
194  /* Debugging function to print the internal form of the regex. This is the same  /*************************************************
195  code as contained in pcre.c under the DEBUG macro. */  *        Read or extend an input line            *
196    *************************************************/
197    
198  static const char *OP_names[] = {  /* Input lines are read into buffer, but both patterns and data lines can be
199    "End", "\\A", "\\B", "\\b", "\\D", "\\d",  continued over multiple input lines. In addition, if the buffer fills up, we
200    "\\S", "\\s", "\\W", "\\w", "Cut", "\\Z", "^", "$", "Any", "chars",  want to automatically expand it so as to be able to handle extremely large
201    "not",  lines that are needed for certain stress tests. When the input buffer is
202    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  expanded, the other two buffers must also be expanded likewise, and the
203    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  contents of pbuffer, which are a copy of the input for callouts, must be
204    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  preserved (for when expansion happens for a data line). This is not the most
205    "*", "*?", "+", "+?", "?", "??", "{", "{",  optimal way of handling this, but hey, this is just a test program!
206    "class", "Ref",  
207    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not", "Once",  Arguments:
208    "Brazero", "Braminzero", "Bra"    f            the file to read
209  };    start        where in buffer to start (this *must* be within buffer)
210      prompt       for stdin or readline()
211    
212  static void print_internals(pcre *re)  Returns:       pointer to the start of new data
213  {                 could be a copy of start, or could be moved
214  unsigned char *code = ((real_pcre *)re)->code;                 NULL if no data read and EOF reached
215    */
 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;  
216    
217          case OP_CRRANGE:  static uschar *
218          case OP_CRMINRANGE:  extend_inputline(FILE *f, uschar *start, const char *prompt)
219          min = (code[1] << 8) + code[2];  {
220          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;  
221    
222          default:  for (;;)
223          code--;    {
224          }    int rlen = (int)(buffer_size - (here - buffer));
225    
226      if (rlen > 1000)
227        {
228        int dlen;
229    
230        /* If libreadline support is required, use readline() to read a line if the
231        input is a terminal. Note that readline() removes the trailing newline, so
232        we must put it back again, to be compatible with fgets(). */
233    
234    #ifdef SUPPORT_LIBREADLINE
235        if (isatty(fileno(f)))
236          {
237          size_t len;
238          char *s = readline(prompt);
239          if (s == NULL) return (here == start)? NULL : start;
240          len = strlen(s);
241          if (len > 0) add_history(s);
242          if (len > rlen - 1) len = rlen - 1;
243          memcpy(here, s, len);
244          here[len] = '\n';
245          here[len+1] = 0;
246          free(s);
247        }        }
248      break;      else
249    #endif
250    
251      /* Anything else is just a one-node item */      /* Read the next line by normal means, prompting if the file is stdin. */
252    
253      default:        {
254      printf("    %s", OP_names[*code]);        if (f == stdin) printf("%s", prompt);
255      break;        if (fgets((char *)here, rlen,  f) == NULL)
256            return (here == start)? NULL : start;
257          }
258    
259        dlen = (int)strlen((char *)here);
260        if (dlen > 0 && here[dlen - 1] == '\n') return start;
261        here += dlen;
262      }      }
263    
264    code++;    else
265    printf("\n");      {
266        int new_buffer_size = 2*buffer_size;
267        uschar *new_buffer = (unsigned char *)malloc(new_buffer_size);
268        uschar *new_dbuffer = (unsigned char *)malloc(new_buffer_size);
269        uschar *new_pbuffer = (unsigned char *)malloc(new_buffer_size);
270    
271        if (new_buffer == NULL || new_dbuffer == NULL || new_pbuffer == NULL)
272          {
273          fprintf(stderr, "pcretest: malloc(%d) failed\n", new_buffer_size);
274          exit(1);
275          }
276    
277        memcpy(new_buffer, buffer, buffer_size);
278        memcpy(new_pbuffer, pbuffer, buffer_size);
279    
280        buffer_size = new_buffer_size;
281    
282        start = new_buffer + (start - buffer);
283        here = new_buffer + (here - buffer);
284    
285        free(buffer);
286        free(dbuffer);
287        free(pbuffer);
288    
289        buffer = new_buffer;
290        dbuffer = new_dbuffer;
291        pbuffer = new_pbuffer;
292        }
293      }
294    
295    return NULL;  /* Control never gets here */
296    }
297    
298    
299    
300    
301    
302    
303    
304    /*************************************************
305    *          Read number from string               *
306    *************************************************/
307    
308    /* We don't use strtoul() because SunOS4 doesn't have it. Rather than mess
309    around with conditional compilation, just do the job by hand. It is only used
310    for unpicking arguments, so just keep it simple.
311    
312    Arguments:
313      str           string to be converted
314      endptr        where to put the end pointer
315    
316    Returns:        the unsigned long
317    */
318    
319    static int
320    get_value(unsigned char *str, unsigned char **endptr)
321    {
322    int result = 0;
323    while(*str != 0 && isspace(*str)) str++;
324    while (isdigit(*str)) result = result * 10 + (int)(*str++ - '0');
325    *endptr = str;
326    return(result);
327    }
328    
329    
330    
331    
332    /*************************************************
333    *            Convert UTF-8 string to value       *
334    *************************************************/
335    
336    /* This function takes one or more bytes that represents a UTF-8 character,
337    and returns the value of the character.
338    
339    Argument:
340      utf8bytes   a pointer to the byte vector
341      vptr        a pointer to an int to receive the value
342    
343    Returns:      >  0 => the number of bytes consumed
344                  -6 to 0 => malformed UTF-8 character at offset = (-return)
345    */
346    
347    #if !defined NOUTF8
348    
349    static int
350    utf82ord(unsigned char *utf8bytes, int *vptr)
351    {
352    int c = *utf8bytes++;
353    int d = c;
354    int i, j, s;
355    
356    for (i = -1; i < 6; i++)               /* i is number of additional bytes */
357      {
358      if ((d & 0x80) == 0) break;
359      d <<= 1;
360    }    }
361    
362    if (i == -1) { *vptr = c; return 1; }  /* ascii character */
363    if (i == 0 || i == 6) return 0;        /* invalid UTF-8 */
364    
365    /* i now has a value in the range 1-5 */
366    
367    s = 6*i;
368    d = (c & utf8_table3[i]) << s;
369    
370    for (j = 0; j < i; j++)
371      {
372      c = *utf8bytes++;
373      if ((c & 0xc0) != 0x80) return -(j+1);
374      s -= 6;
375      d |= (c & 0x3f) << s;
376      }
377    
378    /* Check that encoding was the correct unique one */
379    
380    for (j = 0; j < utf8_table1_size; j++)
381      if (d <= utf8_table1[j]) break;
382    if (j != i) return -(i+1);
383    
384    /* Valid value */
385    
386    *vptr = d;
387    return i+1;
388  }  }
389    
390    #endif
391    
392    
393    
394    /*************************************************
395    *       Convert character value to UTF-8         *
396    *************************************************/
397    
398    /* This function takes an integer value in the range 0 - 0x7fffffff
399    and encodes it as a UTF-8 character in 0 to 6 bytes.
400    
401    Arguments:
402      cvalue     the character value
403      utf8bytes  pointer to buffer for result - at least 6 bytes long
404    
405    Returns:     number of characters placed in the buffer
406    */
407    
408  /* Character string printing function. */  #if !defined NOUTF8
409    
410  static void pchars(unsigned char *p, int length)  static int
411    ord2utf8(int cvalue, uschar *utf8bytes)
412  {  {
413  int c;  register int i, j;
414    for (i = 0; i < utf8_table1_size; i++)
415      if (cvalue <= utf8_table1[i]) break;
416    utf8bytes += i;
417    for (j = i; j > 0; j--)
418     {
419     *utf8bytes-- = 0x80 | (cvalue & 0x3f);
420     cvalue >>= 6;
421     }
422    *utf8bytes = utf8_table2[i] | cvalue;
423    return i + 1;
424    }
425    
426    #endif
427    
428    
429    
430    /*************************************************
431    *             Print character string             *
432    *************************************************/
433    
434    /* Character string printing function. Must handle UTF-8 strings in utf8
435    mode. Yields number of characters printed. If handed a NULL file, just counts
436    chars without printing. */
437    
438    static int pchars(unsigned char *p, int length, FILE *f)
439    {
440    int c = 0;
441    int yield = 0;
442    
443  while (length-- > 0)  while (length-- > 0)
444    if (isprint(c = *(p++))) fprintf(outfile, "%c", c);    {
445      else fprintf(outfile, "\\x%02x", c);  #if !defined NOUTF8
446      if (use_utf8)
447        {
448        int rc = utf82ord(p, &c);
449    
450        if (rc > 0 && rc <= length + 1)   /* Mustn't run over the end */
451          {
452          length -= rc - 1;
453          p += rc;
454          if (PRINTHEX(c))
455            {
456            if (f != NULL) fprintf(f, "%c", c);
457            yield++;
458            }
459          else
460            {
461            int n = 4;
462            if (f != NULL) fprintf(f, "\\x{%02x}", c);
463            yield += (n <= 0x000000ff)? 2 :
464                     (n <= 0x00000fff)? 3 :
465                     (n <= 0x0000ffff)? 4 :
466                     (n <= 0x000fffff)? 5 : 6;
467            }
468          continue;
469          }
470        }
471    #endif
472    
473       /* Not UTF-8, or malformed UTF-8  */
474    
475      c = *p++;
476      if (PRINTHEX(c))
477        {
478        if (f != NULL) fprintf(f, "%c", c);
479        yield++;
480        }
481      else
482        {
483        if (f != NULL) fprintf(f, "\\x%02x", c);
484        yield += 4;
485        }
486      }
487    
488    return yield;
489  }  }
490    
491    
492    
493    /*************************************************
494    *              Callout function                  *
495    *************************************************/
496    
497    /* Called from PCRE as a result of the (?C) item. We print out where we are in
498    the match. Yield zero unless more callouts than the fail count, or the callout
499    data is not zero. */
500    
501    static int callout(pcre_callout_block *cb)
502    {
503    FILE *f = (first_callout | callout_extra)? outfile : NULL;
504    int i, pre_start, post_start, subject_length;
505    
506    if (callout_extra)
507      {
508      fprintf(f, "Callout %d: last capture = %d\n",
509        cb->callout_number, cb->capture_last);
510    
511      for (i = 0; i < cb->capture_top * 2; i += 2)
512        {
513        if (cb->offset_vector[i] < 0)
514          fprintf(f, "%2d: <unset>\n", i/2);
515        else
516          {
517          fprintf(f, "%2d: ", i/2);
518          (void)pchars((unsigned char *)cb->subject + cb->offset_vector[i],
519            cb->offset_vector[i+1] - cb->offset_vector[i], f);
520          fprintf(f, "\n");
521          }
522        }
523      }
524    
525    /* Re-print the subject in canonical form, the first time or if giving full
526    datails. On subsequent calls in the same match, we use pchars just to find the
527    printed lengths of the substrings. */
528    
529    if (f != NULL) fprintf(f, "--->");
530    
531    pre_start = pchars((unsigned char *)cb->subject, cb->start_match, f);
532    post_start = pchars((unsigned char *)(cb->subject + cb->start_match),
533      cb->current_position - cb->start_match, f);
534    
535    subject_length = pchars((unsigned char *)cb->subject, cb->subject_length, NULL);
536    
537    (void)pchars((unsigned char *)(cb->subject + cb->current_position),
538      cb->subject_length - cb->current_position, f);
539    
540    if (f != NULL) fprintf(f, "\n");
541    
542    /* Always print appropriate indicators, with callout number if not already
543    shown. For automatic callouts, show the pattern offset. */
544    
545    if (cb->callout_number == 255)
546      {
547      fprintf(outfile, "%+3d ", cb->pattern_position);
548      if (cb->pattern_position > 99) fprintf(outfile, "\n    ");
549      }
550    else
551      {
552      if (callout_extra) fprintf(outfile, "    ");
553        else fprintf(outfile, "%3d ", cb->callout_number);
554      }
555    
556    for (i = 0; i < pre_start; i++) fprintf(outfile, " ");
557    fprintf(outfile, "^");
558    
559    if (post_start > 0)
560      {
561      for (i = 0; i < post_start - 1; i++) fprintf(outfile, " ");
562      fprintf(outfile, "^");
563      }
564    
565    for (i = 0; i < subject_length - pre_start - post_start + 4; i++)
566      fprintf(outfile, " ");
567    
568    fprintf(outfile, "%.*s", (cb->next_item_length == 0)? 1 : cb->next_item_length,
569      pbuffer + cb->pattern_position);
570    
571    fprintf(outfile, "\n");
572    first_callout = 0;
573    
574    if (cb->callout_data != NULL)
575      {
576      int callout_data = *((int *)(cb->callout_data));
577      if (callout_data != 0)
578        {
579        fprintf(outfile, "Callout data = %d\n", callout_data);
580        return callout_data;
581        }
582      }
583    
584    return (cb->callout_number != callout_fail_id)? 0 :
585           (++callout_count >= callout_fail_count)? 1 : 0;
586    }
587    
588    
589    /*************************************************
590    *            Local malloc functions              *
591    *************************************************/
592    
593  /* Alternative malloc function, to test functionality and show the size of the  /* Alternative malloc function, to test functionality and show the size of the
594  compiled re. */  compiled re. */
595    
596  static void *new_malloc(size_t size)  static void *new_malloc(size_t size)
597  {  {
598  if (log_store) fprintf(outfile, "Store size request: %d\n", (int)size);  void *block = malloc(size);
599  return malloc(size);  gotten_store = size;
600    if (show_malloc)
601      fprintf(outfile, "malloc       %3d %p\n", (int)size, block);
602    return block;
603    }
604    
605    static void new_free(void *block)
606    {
607    if (show_malloc)
608      fprintf(outfile, "free             %p\n", block);
609    free(block);
610  }  }
611    
612    
613    /* For recursion malloc/free, to test stacking calls */
614    
615    static void *stack_malloc(size_t size)
616    {
617    void *block = malloc(size);
618    if (show_malloc)
619      fprintf(outfile, "stack_malloc %3d %p\n", (int)size, block);
620    return block;
621    }
622    
623    static void stack_free(void *block)
624    {
625    if (show_malloc)
626      fprintf(outfile, "stack_free       %p\n", block);
627    free(block);
628    }
629    
630    
631    /*************************************************
632    *          Call pcre_fullinfo()                  *
633    *************************************************/
634    
635    /* Get one piece of information from the pcre_fullinfo() function */
636    
637    static void new_info(pcre *re, pcre_extra *study, int option, void *ptr)
638    {
639    int rc;
640    if ((rc = pcre_fullinfo(re, study, option, ptr)) < 0)
641      fprintf(outfile, "Error %d from pcre_fullinfo(%d)\n", rc, option);
642    }
643    
644    
645    
646    /*************************************************
647    *         Byte flipping function                 *
648    *************************************************/
649    
650    static unsigned long int
651    byteflip(unsigned long int value, int n)
652    {
653    if (n == 2) return ((value & 0x00ff) << 8) | ((value & 0xff00) >> 8);
654    return ((value & 0x000000ff) << 24) |
655           ((value & 0x0000ff00) <<  8) |
656           ((value & 0x00ff0000) >>  8) |
657           ((value & 0xff000000) >> 24);
658    }
659    
660    
661    
662    
663    /*************************************************
664    *        Check match or recursion limit          *
665    *************************************************/
666    
667    static int
668    check_match_limit(pcre *re, pcre_extra *extra, uschar *bptr, int len,
669      int start_offset, int options, int *use_offsets, int use_size_offsets,
670      int flag, unsigned long int *limit, int errnumber, const char *msg)
671    {
672    int count;
673    int min = 0;
674    int mid = 64;
675    int max = -1;
676    
677    extra->flags |= flag;
678    
679    for (;;)
680      {
681      *limit = mid;
682    
683      count = pcre_exec(re, extra, (char *)bptr, len, start_offset, options,
684        use_offsets, use_size_offsets);
685    
686      if (count == errnumber)
687        {
688        /* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
689        min = mid;
690        mid = (mid == max - 1)? max : (max > 0)? (min + max)/2 : mid*2;
691        }
692    
693      else if (count >= 0 || count == PCRE_ERROR_NOMATCH ||
694                             count == PCRE_ERROR_PARTIAL)
695        {
696        if (mid == min + 1)
697          {
698          fprintf(outfile, "Minimum %s limit = %d\n", msg, mid);
699          break;
700          }
701        /* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
702        max = mid;
703        mid = (min + mid)/2;
704        }
705      else break;    /* Some other error */
706      }
707    
708    extra->flags &= ~flag;
709    return count;
710    }
711    
712    
713    
714    /*************************************************
715    *         Case-independent strncmp() function    *
716    *************************************************/
717    
718    /*
719    Arguments:
720      s         first string
721      t         second string
722      n         number of characters to compare
723    
724    Returns:    < 0, = 0, or > 0, according to the comparison
725    */
726    
727    static int
728    strncmpic(uschar *s, uschar *t, int n)
729    {
730    while (n--)
731      {
732      int c = tolower(*s++) - tolower(*t++);
733      if (c) return c;
734      }
735    return 0;
736    }
737    
738    
739    
740    /*************************************************
741    *         Check newline indicator                *
742    *************************************************/
743    
744    /* This is used both at compile and run-time to check for <xxx> escapes. Print
745    a message and return 0 if there is 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
# Line 260  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  /* Static so that new_malloc can use it. */  /* 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    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;
   const 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 *markptr;
1043    if (infile != stdin) fprintf(outfile, (char *)buffer);    unsigned char *p, *pp, *ppp;
1044      unsigned char *to_file = NULL;
1045      const unsigned char *tables = NULL;
1046      unsigned long int true_size, true_study_size = 0;
1047      size_t size, regex_gotten_store;
1048      int do_mark = 0;
1049      int do_study = 0;
1050      int do_debug = debug;
1051      int do_G = 0;
1052      int do_g = 0;
1053      int do_showinfo = showinfo;
1054      int do_showrest = 0;
1055      int do_flip = 0;
1056      int erroroffset, len, delimiter, poffset;
1057    
1058      use_utf8 = 0;
1059      debug_lengths = 1;
1060    
1061      if (extend_inputline(infile, buffer, "  re> ") == NULL) break;
1062      if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1063      fflush(outfile);
1064    
1065    p = buffer;    p = buffer;
1066    while (isspace(*p)) p++;    while (isspace(*p)) p++;
1067    if (*p == 0) continue;    if (*p == 0) continue;
1068    
1069    /* 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. */
1070    complete, read more. */  
1071      if (*p == '<' && strchr((char *)(p+1), '<') == NULL)
1072        {
1073        unsigned long int magic, get_options;
1074        uschar sbuf[8];
1075        FILE *f;
1076    
1077        p++;
1078        pp = p + (int)strlen((char *)p);
1079        while (isspace(pp[-1])) pp--;
1080        *pp = 0;
1081    
1082        f = fopen((char *)p, "rb");
1083        if (f == NULL)
1084          {
1085          fprintf(outfile, "Failed to open %s: %s\n", p, strerror(errno));
1086          continue;
1087          }
1088    
1089        if (fread(sbuf, 1, 8, f) != 8) goto FAIL_READ;
1090    
1091        true_size =
1092          (sbuf[0] << 24) | (sbuf[1] << 16) | (sbuf[2] << 8) | sbuf[3];
1093        true_study_size =
1094          (sbuf[4] << 24) | (sbuf[5] << 16) | (sbuf[6] << 8) | sbuf[7];
1095    
1096        re = (real_pcre *)new_malloc(true_size);
1097        regex_gotten_store = gotten_store;
1098    
1099        if (fread(re, 1, true_size, f) != true_size) goto FAIL_READ;
1100    
1101        magic = ((real_pcre *)re)->magic_number;
1102        if (magic != MAGIC_NUMBER)
1103          {
1104          if (byteflip(magic, sizeof(magic)) == MAGIC_NUMBER)
1105            {
1106            do_flip = 1;
1107            }
1108          else
1109            {
1110            fprintf(outfile, "Data in %s is not a compiled PCRE regex\n", p);
1111            fclose(f);
1112            continue;
1113            }
1114          }
1115    
1116        fprintf(outfile, "Compiled regex%s loaded from %s\n",
1117          do_flip? " (byte-inverted)" : "", p);
1118    
1119        /* Need to know if UTF-8 for printing data strings */
1120    
1121        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1122        use_utf8 = (get_options & PCRE_UTF8) != 0;
1123    
1124        /* Now see if there is any following study data */
1125    
1126        if (true_study_size != 0)
1127          {
1128          pcre_study_data *psd;
1129    
1130          extra = (pcre_extra *)new_malloc(sizeof(pcre_extra) + true_study_size);
1131          extra->flags = PCRE_EXTRA_STUDY_DATA;
1132    
1133          psd = (pcre_study_data *)(((char *)extra) + sizeof(pcre_extra));
1134          extra->study_data = psd;
1135    
1136          if (fread(psd, 1, true_study_size, f) != true_study_size)
1137            {
1138            FAIL_READ:
1139            fprintf(outfile, "Failed to read data from %s\n", p);
1140            if (extra != NULL) new_free(extra);
1141            if (re != NULL) new_free(re);
1142            fclose(f);
1143            continue;
1144            }
1145          fprintf(outfile, "Study data loaded from %s\n", p);
1146          do_study = 1;     /* To get the data output if requested */
1147          }
1148        else fprintf(outfile, "No study data\n");
1149    
1150        fclose(f);
1151        goto SHOW_INFO;
1152        }
1153    
1154      /* In-line pattern (the usual case). Get the delimiter and seek the end of
1155      the pattern; if is isn't complete, read more. */
1156    
1157    delimiter = *p++;    delimiter = *p++;
1158    
1159    if (isalnum(delimiter))    if (isalnum(delimiter) || delimiter == '\\')
1160      {      {
1161      fprintf(outfile, "** Delimiter must not be alphameric\n");      fprintf(outfile, "** Delimiter must not be alphanumeric or \\\n");
1162      goto SKIP_DATA;      goto SKIP_DATA;
1163      }      }
1164    
1165    pp = p;    pp = p;
1166      poffset = (int)(p - buffer);
1167    
1168    for(;;)    for(;;)
1169      {      {
1170      while (*pp != 0 && *pp != delimiter) pp++;      while (*pp != 0)
     if (*pp != 0) break;  
   
     len = sizeof(buffer) - (pp - buffer);  
     if (len < 256)  
1171        {        {
1172        fprintf(outfile, "** Expression too long - missing delimiter?\n");        if (*pp == '\\' && pp[1] != 0) pp++;
1173        goto SKIP_DATA;          else if (*pp == delimiter) break;
1174          pp++;
1175        }        }
1176        if (*pp != 0) break;
1177      if (infile == stdin) printf("    > ");      if ((pp = extend_inputline(infile, pp, "    > ")) == NULL)
     if (fgets((char *)pp, len, infile) == NULL)  
1178        {        {
1179        fprintf(outfile, "** Unexpected EOF\n");        fprintf(outfile, "** Unexpected EOF\n");
1180        goto END_OFF;        done = 1;
1181          goto CONTINUE;
1182        }        }
1183      if (infile != stdin) fprintf(outfile, (char *)pp);      if (infile != stdin) fprintf(outfile, "%s", (char *)pp);
1184      }      }
1185    
1186    /* Terminate the pattern at the delimiter */    /* The buffer may have moved while being extended; reset the start of data
1187      pointer to the correct relative point in the buffer. */
1188    
1189      p = buffer + poffset;
1190    
1191      /* If the first character after the delimiter is backslash, make
1192      the pattern end with backslash. This is purely to provide a way
1193      of testing for the error message when a pattern ends with backslash. */
1194    
1195      if (pp[1] == '\\') *pp++ = '\\';
1196    
1197      /* Terminate the pattern at the delimiter, and save a copy of the pattern
1198      for callouts. */
1199    
1200    *pp++ = 0;    *pp++ = 0;
1201      strcpy((char *)pbuffer, (char *)p);
1202    
1203    /* Look for options after final delimiter */    /* Look for options after final delimiter */
1204    
1205    options = 0;    options = 0;
1206    study_options = 0;    study_options = 0;
1207      log_store = showstore;  /* default from command line */
1208    
1209    while (*pp != 0)    while (*pp != 0)
1210      {      {
1211      switch (*pp++)      switch (*pp++)
1212        {        {
1213          case 'f': options |= PCRE_FIRSTLINE; break;
1214          case 'g': do_g = 1; break;
1215        case 'i': options |= PCRE_CASELESS; break;        case 'i': options |= PCRE_CASELESS; break;
1216        case 'm': options |= PCRE_MULTILINE; break;        case 'm': options |= PCRE_MULTILINE; break;
1217        case 's': options |= PCRE_DOTALL; break;        case 's': options |= PCRE_DOTALL; break;
1218        case 'x': options |= PCRE_EXTENDED; break;        case 'x': options |= PCRE_EXTENDED; break;
1219    
1220          case '+': do_showrest = 1; break;
1221        case 'A': options |= PCRE_ANCHORED; break;        case 'A': options |= PCRE_ANCHORED; break;
1222        case 'D': do_debug = 1; break;        case 'B': do_debug = 1; break;
1223          case 'C': options |= PCRE_AUTO_CALLOUT; break;
1224          case 'D': do_debug = do_showinfo = 1; break;
1225        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;
1226          case 'F': do_flip = 1; break;
1227          case 'G': do_G = 1; break;
1228          case 'I': do_showinfo = 1; break;
1229          case 'J': options |= PCRE_DUPNAMES; break;
1230          case 'K': do_mark = 1; break;
1231          case 'M': log_store = 1; break;
1232          case 'N': options |= PCRE_NO_AUTO_CAPTURE; break;
1233    
1234    #if !defined NOPOSIX
1235        case 'P': do_posix = 1; break;        case 'P': do_posix = 1; break;
1236    #endif
1237    
1238        case 'S': do_study = 1; break;        case 'S': do_study = 1; break;
1239        case 'I': study_options |= PCRE_CASELESS; break;        case 'U': options |= PCRE_UNGREEDY; break;
1240          case 'W': options |= PCRE_UCP; break;
1241        case 'X': options |= PCRE_EXTRA; break;        case 'X': options |= PCRE_EXTRA; break;
1242        case '\n': case ' ': break;        case 'Z': debug_lengths = 0; break;
1243          case '8': options |= PCRE_UTF8; use_utf8 = 1; break;
1244          case '?': options |= PCRE_NO_UTF8_CHECK; break;
1245    
1246          case 'L':
1247          ppp = pp;
1248          /* The '\r' test here is so that it works on Windows. */
1249          /* The '0' test is just in case this is an unterminated line. */
1250          while (*ppp != 0 && *ppp != '\n' && *ppp != '\r' && *ppp != ' ') ppp++;
1251          *ppp = 0;
1252          if (setlocale(LC_CTYPE, (const char *)pp) == NULL)
1253            {
1254            fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);
1255            goto SKIP_DATA;
1256            }
1257          locale_set = 1;
1258          tables = pcre_maketables();
1259          pp = ppp;
1260          break;
1261    
1262          case '>':
1263          to_file = pp;
1264          while (*pp != 0) pp++;
1265          while (isspace(pp[-1])) pp--;
1266          *pp = 0;
1267          break;
1268    
1269          case '<':
1270            {
1271            if (strncmpic(pp, (uschar *)"JS>", 3) == 0)
1272              {
1273              options |= PCRE_JAVASCRIPT_COMPAT;
1274              pp += 3;
1275              }
1276            else
1277              {
1278              int x = check_newline(pp, outfile);
1279              if (x == 0) goto SKIP_DATA;
1280              options |= x;
1281              while (*pp++ != '>');
1282              }
1283            }
1284          break;
1285    
1286          case '\r':                      /* So that it works in Windows */
1287          case '\n':
1288          case ' ':
1289          break;
1290    
1291        default:        default:
1292        fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);        fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);
1293        goto SKIP_DATA;        goto SKIP_DATA;
1294        }        }
1295      }      }
1296    
1297    /* Handle compiing via the POSIX interface, which doesn't support the    /* Handle compiling via the POSIX interface, which doesn't support the
1298    timing, showing, or debugging options. */    timing, showing, or debugging options, nor the ability to pass over
1299      local character tables. */
1300    
1301    #if !defined NOPOSIX
1302    if (posix || do_posix)    if (posix || do_posix)
1303      {      {
1304      int rc;      int rc;
1305      int cflags = 0;      int cflags = 0;
1306    
1307      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;
1308      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;
1309        if ((options & PCRE_DOTALL) != 0) cflags |= REG_DOTALL;
1310        if ((options & PCRE_NO_AUTO_CAPTURE) != 0) cflags |= REG_NOSUB;
1311        if ((options & PCRE_UTF8) != 0) cflags |= REG_UTF8;
1312        if ((options & PCRE_UCP) != 0) cflags |= REG_UCP;
1313        if ((options & PCRE_UNGREEDY) != 0) cflags |= REG_UNGREEDY;
1314    
1315      rc = regcomp(&preg, (char *)p, cflags);      rc = regcomp(&preg, (char *)p, cflags);
1316    
1317      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
# Line 423  for (;;) Line 1319  for (;;)
1319    
1320      if (rc != 0)      if (rc != 0)
1321        {        {
1322        (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));        (void)regerror(rc, &preg, (char *)buffer, buffer_size);
1323        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
1324        goto SKIP_DATA;        goto SKIP_DATA;
1325        }        }
# Line 432  for (;;) Line 1328  for (;;)
1328    /* Handle compiling via the native interface */    /* Handle compiling via the native interface */
1329    
1330    else    else
1331    #endif  /* !defined NOPOSIX */
1332    
1333      {      {
1334      if (timeit)      unsigned long int get_options;
1335    
1336        if (timeit > 0)
1337        {        {
1338        register int i;        register int i;
1339        clock_t time_taken;        clock_t time_taken;
1340        clock_t start_time = clock();        clock_t start_time = clock();
1341        for (i = 0; i < 4000; i++)        for (i = 0; i < timeit; i++)
1342          {          {
1343          re = pcre_compile((char *)p, options, &error, &erroroffset);          re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1344          if (re != NULL) free(re);          if (re != NULL) free(re);
1345          }          }
1346        time_taken = clock() - start_time;        time_taken = clock() - start_time;
1347        fprintf(outfile, "Compile time %.2f milliseconds\n",        fprintf(outfile, "Compile time %.4f milliseconds\n",
1348          ((double)time_taken)/(4 * CLOCKS_PER_SEC));          (((double)time_taken * 1000.0) / (double)timeit) /
1349              (double)CLOCKS_PER_SEC);
1350        }        }
1351    
1352      re = pcre_compile((char *)p, options, &error, &erroroffset);      re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1353    
1354      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
1355      if non-interactive. */      if non-interactive. */
# Line 461  for (;;) Line 1362  for (;;)
1362          {          {
1363          for (;;)          for (;;)
1364            {            {
1365            if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)            if (extend_inputline(infile, buffer, NULL) == NULL)
1366              goto END_OFF;              {
1367                done = 1;
1368                goto CONTINUE;
1369                }
1370            len = (int)strlen((char *)buffer);            len = (int)strlen((char *)buffer);
1371            while (len > 0 && isspace(buffer[len-1])) len--;            while (len > 0 && isspace(buffer[len-1])) len--;
1372            if (len == 0) break;            if (len == 0) break;
1373            }            }
1374          fprintf(outfile, "\n");          fprintf(outfile, "\n");
1375          }          }
1376        continue;        goto CONTINUE;
1377        }        }
1378    
1379      /* Compilation succeeded; print data if required */      /* Compilation succeeded. It is now possible to set the UTF-8 option from
1380        within the regex; check for this so that we know how to process the data
1381        lines. */
1382    
1383        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1384        if ((get_options & PCRE_UTF8) != 0) use_utf8 = 1;
1385    
1386        /* Print information if required. There are now two info-returning
1387        functions. The old one has a limited interface and returns only limited
1388        data. Check that it agrees with the newer one. */
1389    
1390        if (log_store)
1391          fprintf(outfile, "Memory allocation (code space): %d\n",
1392            (int)(gotten_store -
1393                  sizeof(real_pcre) -
1394                  ((real_pcre *)re)->name_count * ((real_pcre *)re)->name_entry_size));
1395    
1396      if (showinfo || do_debug)      /* Extract the size for possible writing before possibly flipping it,
1397        {      and remember the store that was got. */
       int first_char, count;  
   
       if (debug || do_debug) print_internals(re);  
1398    
1399        count = pcre_info(re, &options, &first_char);      true_size = ((real_pcre *)re)->size;
1400        if (count < 0) fprintf(outfile,      regex_gotten_store = gotten_store;
         "Error %d while reading info\n", count);  
       else  
         {  
         fprintf(outfile, "Identifying subpattern count = %d\n", count);  
         if (options == 0) fprintf(outfile, "No options\n");  
           else fprintf(outfile, "Options:%s%s%s%s%s%s%s\n",  
             ((options & PCRE_ANCHORED) != 0)? " anchored" : "",  
             ((options & PCRE_CASELESS) != 0)? " caseless" : "",  
             ((options & PCRE_EXTENDED) != 0)? " extended" : "",  
             ((options & PCRE_MULTILINE) != 0)? " multiline" : "",  
             ((options & PCRE_DOTALL) != 0)? " dotall" : "",  
             ((options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",  
             ((options & PCRE_EXTRA) != 0)? " extra" : "");  
         if (first_char == -1)  
           {  
           fprintf(outfile, "First char at start or follows \\n\n");  
           }  
         else if (first_char < 0)  
           {  
           fprintf(outfile, "No first char\n");  
           }  
         else  
           {  
           if (isprint(first_char))  
             fprintf(outfile, "First char = \'%c\'\n", first_char);  
           else  
             fprintf(outfile, "First char = %d\n", first_char);  
           }  
         }  
       }  
1401    
1402      /* If /S was present, study the regexp to generate additional info to      /* If /S was present, study the regexp to generate additional info to
1403      help with the matching. */      help with the matching. */
1404    
1405      if (do_study)      if (do_study)
1406        {        {
1407        if (timeit)        if (timeit > 0)
1408          {          {
1409          register int i;          register int i;
1410          clock_t time_taken;          clock_t time_taken;
1411          clock_t start_time = clock();          clock_t start_time = clock();
1412          for (i = 0; i < 4000; i++)          for (i = 0; i < timeit; i++)
1413            extra = pcre_study(re, study_options, &error);            extra = pcre_study(re, study_options, &error);
1414          time_taken = clock() - start_time;          time_taken = clock() - start_time;
1415          if (extra != NULL) free(extra);          if (extra != NULL) free(extra);
1416          fprintf(outfile, "  Study time %.2f milliseconds\n",          fprintf(outfile, "  Study time %.4f milliseconds\n",
1417            ((double)time_taken)/(4 * CLOCKS_PER_SEC));            (((double)time_taken * 1000.0) / (double)timeit) /
1418                (double)CLOCKS_PER_SEC);
1419            }
1420          extra = pcre_study(re, study_options, &error);
1421          if (error != NULL)
1422            fprintf(outfile, "Failed to study: %s\n", error);
1423          else if (extra != NULL)
1424            true_study_size = ((pcre_study_data *)(extra->study_data))->size;
1425          }
1426    
1427        /* If /K was present, we set up for handling MARK data. */
1428    
1429        if (do_mark)
1430          {
1431          if (extra == NULL)
1432            {
1433            extra = (pcre_extra *)malloc(sizeof(pcre_extra));
1434            extra->flags = 0;
1435            }
1436          extra->mark = &markptr;
1437          extra->flags |= PCRE_EXTRA_MARK;
1438          }
1439    
1440        /* If the 'F' option was present, we flip the bytes of all the integer
1441        fields in the regex data block and the study block. This is to make it
1442        possible to test PCRE's handling of byte-flipped patterns, e.g. those
1443        compiled on a different architecture. */
1444    
1445        if (do_flip)
1446          {
1447          real_pcre *rre = (real_pcre *)re;
1448          rre->magic_number =
1449            byteflip(rre->magic_number, sizeof(rre->magic_number));
1450          rre->size = byteflip(rre->size, sizeof(rre->size));
1451          rre->options = byteflip(rre->options, sizeof(rre->options));
1452          rre->flags = (pcre_uint16)byteflip(rre->flags, sizeof(rre->flags));
1453          rre->top_bracket =
1454            (pcre_uint16)byteflip(rre->top_bracket, sizeof(rre->top_bracket));
1455          rre->top_backref =
1456            (pcre_uint16)byteflip(rre->top_backref, sizeof(rre->top_backref));
1457          rre->first_byte =
1458            (pcre_uint16)byteflip(rre->first_byte, sizeof(rre->first_byte));
1459          rre->req_byte =
1460            (pcre_uint16)byteflip(rre->req_byte, sizeof(rre->req_byte));
1461          rre->name_table_offset = (pcre_uint16)byteflip(rre->name_table_offset,
1462            sizeof(rre->name_table_offset));
1463          rre->name_entry_size = (pcre_uint16)byteflip(rre->name_entry_size,
1464            sizeof(rre->name_entry_size));
1465          rre->name_count = (pcre_uint16)byteflip(rre->name_count,
1466            sizeof(rre->name_count));
1467    
1468          if (extra != NULL)
1469            {
1470            pcre_study_data *rsd = (pcre_study_data *)(extra->study_data);
1471            rsd->size = byteflip(rsd->size, sizeof(rsd->size));
1472            rsd->flags = byteflip(rsd->flags, sizeof(rsd->flags));
1473            rsd->minlength = byteflip(rsd->minlength, sizeof(rsd->minlength));
1474            }
1475          }
1476    
1477        /* Extract information from the compiled data if required */
1478    
1479        SHOW_INFO:
1480    
1481        if (do_debug)
1482          {
1483          fprintf(outfile, "------------------------------------------------------------------\n");
1484          pcre_printint(re, outfile, debug_lengths);
1485          }
1486    
1487        /* We already have the options in get_options (see above) */
1488    
1489        if (do_showinfo)
1490          {
1491          unsigned long int all_options;
1492    #if !defined NOINFOCHECK
1493          int old_first_char, old_options, old_count;
1494    #endif
1495          int count, backrefmax, first_char, need_char, okpartial, jchanged,
1496            hascrorlf;
1497          int nameentrysize, namecount;
1498          const uschar *nametable;
1499    
1500          new_info(re, NULL, PCRE_INFO_SIZE, &size);
1501          new_info(re, NULL, PCRE_INFO_CAPTURECOUNT, &count);
1502          new_info(re, NULL, PCRE_INFO_BACKREFMAX, &backrefmax);
1503          new_info(re, NULL, PCRE_INFO_FIRSTBYTE, &first_char);
1504          new_info(re, NULL, PCRE_INFO_LASTLITERAL, &need_char);
1505          new_info(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &nameentrysize);
1506          new_info(re, NULL, PCRE_INFO_NAMECOUNT, &namecount);
1507          new_info(re, NULL, PCRE_INFO_NAMETABLE, (void *)&nametable);
1508          new_info(re, NULL, PCRE_INFO_OKPARTIAL, &okpartial);
1509          new_info(re, NULL, PCRE_INFO_JCHANGED, &jchanged);
1510          new_info(re, NULL, PCRE_INFO_HASCRORLF, &hascrorlf);
1511    
1512    #if !defined NOINFOCHECK
1513          old_count = pcre_info(re, &old_options, &old_first_char);
1514          if (count < 0) fprintf(outfile,
1515            "Error %d from pcre_info()\n", count);
1516          else
1517            {
1518            if (old_count != count) fprintf(outfile,
1519              "Count disagreement: pcre_fullinfo=%d pcre_info=%d\n", count,
1520                old_count);
1521    
1522            if (old_first_char != first_char) fprintf(outfile,
1523              "First char disagreement: pcre_fullinfo=%d pcre_info=%d\n",
1524                first_char, old_first_char);
1525    
1526            if (old_options != (int)get_options) fprintf(outfile,
1527              "Options disagreement: pcre_fullinfo=%ld pcre_info=%d\n",
1528                get_options, old_options);
1529            }
1530    #endif
1531    
1532          if (size != regex_gotten_store) fprintf(outfile,
1533            "Size disagreement: pcre_fullinfo=%d call to malloc for %d\n",
1534            (int)size, (int)regex_gotten_store);
1535    
1536          fprintf(outfile, "Capturing subpattern count = %d\n", count);
1537          if (backrefmax > 0)
1538            fprintf(outfile, "Max back reference = %d\n", backrefmax);
1539    
1540          if (namecount > 0)
1541            {
1542            fprintf(outfile, "Named capturing subpatterns:\n");
1543            while (namecount-- > 0)
1544              {
1545              fprintf(outfile, "  %s %*s%3d\n", nametable + 2,
1546                nameentrysize - 3 - (int)strlen((char *)nametable + 2), "",
1547                GET2(nametable, 0));
1548              nametable += nameentrysize;
1549              }
1550            }
1551    
1552          if (!okpartial) fprintf(outfile, "Partial matching not supported\n");
1553          if (hascrorlf) fprintf(outfile, "Contains explicit CR or LF match\n");
1554    
1555          all_options = ((real_pcre *)re)->options;
1556          if (do_flip) all_options = byteflip(all_options, sizeof(all_options));
1557    
1558          if (get_options == 0) fprintf(outfile, "No options\n");
1559            else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
1560              ((get_options & PCRE_ANCHORED) != 0)? " anchored" : "",
1561              ((get_options & PCRE_CASELESS) != 0)? " caseless" : "",
1562              ((get_options & PCRE_EXTENDED) != 0)? " extended" : "",
1563              ((get_options & PCRE_MULTILINE) != 0)? " multiline" : "",
1564              ((get_options & PCRE_FIRSTLINE) != 0)? " firstline" : "",
1565              ((get_options & PCRE_DOTALL) != 0)? " dotall" : "",
1566              ((get_options & PCRE_BSR_ANYCRLF) != 0)? " bsr_anycrlf" : "",
1567              ((get_options & PCRE_BSR_UNICODE) != 0)? " bsr_unicode" : "",
1568              ((get_options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
1569              ((get_options & PCRE_EXTRA) != 0)? " extra" : "",
1570              ((get_options & PCRE_UNGREEDY) != 0)? " ungreedy" : "",
1571              ((get_options & PCRE_NO_AUTO_CAPTURE) != 0)? " no_auto_capture" : "",
1572              ((get_options & PCRE_UTF8) != 0)? " utf8" : "",
1573              ((get_options & PCRE_UCP) != 0)? " ucp" : "",
1574              ((get_options & PCRE_NO_UTF8_CHECK) != 0)? " no_utf8_check" : "",
1575              ((get_options & PCRE_DUPNAMES) != 0)? " dupnames" : "");
1576    
1577          if (jchanged) fprintf(outfile, "Duplicate name status changes\n");
1578    
1579          switch (get_options & PCRE_NEWLINE_BITS)
1580            {
1581            case PCRE_NEWLINE_CR:
1582            fprintf(outfile, "Forced newline sequence: CR\n");
1583            break;
1584    
1585            case PCRE_NEWLINE_LF:
1586            fprintf(outfile, "Forced newline sequence: LF\n");
1587            break;
1588    
1589            case PCRE_NEWLINE_CRLF:
1590            fprintf(outfile, "Forced newline sequence: CRLF\n");
1591            break;
1592    
1593            case PCRE_NEWLINE_ANYCRLF:
1594            fprintf(outfile, "Forced newline sequence: ANYCRLF\n");
1595            break;
1596    
1597            case PCRE_NEWLINE_ANY:
1598            fprintf(outfile, "Forced newline sequence: ANY\n");
1599            break;
1600    
1601            default:
1602            break;
1603            }
1604    
1605          if (first_char == -1)
1606            {
1607            fprintf(outfile, "First char at start or follows newline\n");
1608            }
1609          else if (first_char < 0)
1610            {
1611            fprintf(outfile, "No first char\n");
1612            }
1613          else
1614            {
1615            int ch = first_char & 255;
1616            const char *caseless = ((first_char & REQ_CASELESS) == 0)?
1617              "" : " (caseless)";
1618            if (PRINTHEX(ch))
1619              fprintf(outfile, "First char = \'%c\'%s\n", ch, caseless);
1620            else
1621              fprintf(outfile, "First char = %d%s\n", ch, caseless);
1622            }
1623    
1624          if (need_char < 0)
1625            {
1626            fprintf(outfile, "No need char\n");
1627            }
1628          else
1629            {
1630            int ch = need_char & 255;
1631            const char *caseless = ((need_char & REQ_CASELESS) == 0)?
1632              "" : " (caseless)";
1633            if (PRINTHEX(ch))
1634              fprintf(outfile, "Need char = \'%c\'%s\n", ch, caseless);
1635            else
1636              fprintf(outfile, "Need char = %d%s\n", ch, caseless);
1637            }
1638    
1639          /* Don't output study size; at present it is in any case a fixed
1640          value, but it varies, depending on the computer architecture, and
1641          so messes up the test suite. (And with the /F option, it might be
1642          flipped.) */
1643    
1644          if (do_study)
1645            {
1646            if (extra == NULL)
1647              fprintf(outfile, "Study returned NULL\n");
1648            else
1649              {
1650              uschar *start_bits = NULL;
1651              int minlength;
1652    
1653              new_info(re, extra, PCRE_INFO_MINLENGTH, &minlength);
1654              fprintf(outfile, "Subject length lower bound = %d\n", minlength);
1655    
1656              new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits);
1657              if (start_bits == NULL)
1658                fprintf(outfile, "No set of starting bytes\n");
1659              else
1660                {
1661                int i;
1662                int c = 24;
1663                fprintf(outfile, "Starting byte set: ");
1664                for (i = 0; i < 256; i++)
1665                  {
1666                  if ((start_bits[i/8] & (1<<(i&7))) != 0)
1667                    {
1668                    if (c > 75)
1669                      {
1670                      fprintf(outfile, "\n  ");
1671                      c = 2;
1672                      }
1673                    if (PRINTHEX(i) && i != ' ')
1674                      {
1675                      fprintf(outfile, "%c ", i);
1676                      c += 2;
1677                      }
1678                    else
1679                      {
1680                      fprintf(outfile, "\\x%02x ", i);
1681                      c += 5;
1682                      }
1683                    }
1684                  }
1685                fprintf(outfile, "\n");
1686                }
1687              }
1688          }          }
1689          }
1690    
1691        extra = pcre_study(re, study_options, &error);      /* If the '>' option was present, we write out the regex to a file, and
1692        if (error != NULL)      that is all. The first 8 bytes of the file are the regex length and then
1693          fprintf(outfile, "Failed to study: %s\n", error);      the study length, in big-endian order. */
       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. */  
1694    
1695        else if (showinfo || do_debug)      if (to_file != NULL)
1696          {
1697          FILE *f = fopen((char *)to_file, "wb");
1698          if (f == NULL)
1699            {
1700            fprintf(outfile, "Unable to open %s: %s\n", to_file, strerror(errno));
1701            }
1702          else
1703          {          {
1704          real_pcre_extra *xx = (real_pcre_extra *)extra;          uschar sbuf[8];
1705          if ((xx->options & PCRE_STUDY_MAPPED) == 0)          sbuf[0] = (uschar)((true_size >> 24) & 255);
1706            fprintf(outfile, "No starting character set\n");          sbuf[1] = (uschar)((true_size >> 16) & 255);
1707            sbuf[2] = (uschar)((true_size >>  8) & 255);
1708            sbuf[3] = (uschar)((true_size) & 255);
1709    
1710            sbuf[4] = (uschar)((true_study_size >> 24) & 255);
1711            sbuf[5] = (uschar)((true_study_size >> 16) & 255);
1712            sbuf[6] = (uschar)((true_study_size >>  8) & 255);
1713            sbuf[7] = (uschar)((true_study_size) & 255);
1714    
1715            if (fwrite(sbuf, 1, 8, f) < 8 ||
1716                fwrite(re, 1, true_size, f) < true_size)
1717              {
1718              fprintf(outfile, "Write error on %s: %s\n", to_file, strerror(errno));
1719              }
1720          else          else
1721            {            {
1722            int i;            fprintf(outfile, "Compiled regex written to %s\n", to_file);
1723            int c = 24;            if (extra != NULL)
           fprintf(outfile, "Starting character set: ");  
           for (i = 0; i < 256; i++)  
1724              {              {
1725              if ((xx->start_bits[i/8] & (1<<(i%8))) != 0)              if (fwrite(extra->study_data, 1, true_study_size, f) <
1726                    true_study_size)
1727                {                {
1728                if (c > 75)                fprintf(outfile, "Write error on %s: %s\n", to_file,
1729                  {                  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;  
                 }  
1730                }                }
1731                else fprintf(outfile, "Study data written to %s\n", to_file);
1732    
1733              }              }
           fprintf(outfile, "\n");  
1734            }            }
1735            fclose(f);
1736          }          }
1737    
1738          new_free(re);
1739          if (extra != NULL) new_free(extra);
1740          if (tables != NULL) new_free((void *)tables);
1741          continue;  /* With next regex */
1742        }        }
1743      }      }        /* End of non-POSIX compile */
1744    
1745    /* Read data lines and test them */    /* Read data lines and test them */
1746    
1747    for (;;)    for (;;)
1748      {      {
1749      unsigned char *pp;      uschar *q;
1750        uschar *bptr;
1751        int *use_offsets = offsets;
1752        int use_size_offsets = size_offsets;
1753        int callout_data = 0;
1754        int callout_data_set = 0;
1755      int count, c;      int count, c;
1756      int offsets[30];      int copystrings = 0;
1757      int size_offsets = sizeof(offsets)/sizeof(int);      int find_match_limit = default_find_match_limit;
1758        int getstrings = 0;
1759        int getlist = 0;
1760        int gmatched = 0;
1761        int start_offset = 0;
1762        int g_notempty = 0;
1763        int use_dfa = 0;
1764    
1765      options = 0;      options = 0;
1766    
1767      if (infile == stdin) printf("  data> ");      *copynames = 0;
1768      if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) goto END_OFF;      *getnames = 0;
1769      if (infile != stdin) fprintf(outfile, (char *)buffer);  
1770        copynamesptr = copynames;
1771        getnamesptr = getnames;
1772    
1773        pcre_callout = callout;
1774        first_callout = 1;
1775        callout_extra = 0;
1776        callout_count = 0;
1777        callout_fail_count = 999999;
1778        callout_fail_id = -1;
1779        show_malloc = 0;
1780    
1781        if (extra != NULL) extra->flags &=
1782          ~(PCRE_EXTRA_MATCH_LIMIT|PCRE_EXTRA_MATCH_LIMIT_RECURSION);
1783    
1784        len = 0;
1785        for (;;)
1786          {
1787          if (extend_inputline(infile, buffer + len, "data> ") == NULL)
1788            {
1789            if (len > 0) break;
1790            done = 1;
1791            goto CONTINUE;
1792            }
1793          if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1794          len = (int)strlen((char *)buffer);
1795          if (buffer[len-1] == '\n') break;
1796          }
1797    
     len = (int)strlen((char *)buffer);  
1798      while (len > 0 && isspace(buffer[len-1])) len--;      while (len > 0 && isspace(buffer[len-1])) len--;
1799      buffer[len] = 0;      buffer[len] = 0;
1800      if (len == 0) break;      if (len == 0) break;
# Line 600  for (;;) Line 1802  for (;;)
1802      p = buffer;      p = buffer;
1803      while (isspace(*p)) p++;      while (isspace(*p)) p++;
1804    
1805      pp = dbuffer;      bptr = q = dbuffer;
1806      while ((c = *p++) != 0)      while ((c = *p++) != 0)
1807        {        {
1808        int i = 0;        int i = 0;
1809        int n = 0;        int n = 0;
1810    
1811        if (c == '\\') switch ((c = *p++))        if (c == '\\') switch ((c = *p++))
1812          {          {
1813          case 'a': c =    7; break;          case 'a': c =    7; break;
# Line 621  for (;;) Line 1824  for (;;)
1824          c -= '0';          c -= '0';
1825          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
1826            c = c * 8 + *p++ - '0';            c = c * 8 + *p++ - '0';
1827    
1828    #if !defined NOUTF8
1829            if (use_utf8 && c > 255)
1830              {
1831              unsigned char buff8[8];
1832              int ii, utn;
1833              utn = ord2utf8(c, buff8);
1834              for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1835              c = buff8[ii];   /* Last byte */
1836              }
1837    #endif
1838          break;          break;
1839    
1840          case 'x':          case 'x':
1841    
1842            /* Handle \x{..} specially - new Perl thing for utf8 */
1843    
1844    #if !defined NOUTF8
1845            if (*p == '{')
1846              {
1847              unsigned char *pt = p;
1848              c = 0;
1849              while (isxdigit(*(++pt)))
1850                c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'W');
1851              if (*pt == '}')
1852                {
1853                unsigned char buff8[8];
1854                int ii, utn;
1855                if (use_utf8)
1856                  {
1857                  utn = ord2utf8(c, buff8);
1858                  for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1859                  c = buff8[ii];   /* Last byte */
1860                  }
1861                else
1862                 {
1863                 if (c > 255)
1864                   fprintf(outfile, "** Character \\x{%x} is greater than 255 and "
1865                     "UTF-8 mode is not enabled.\n"
1866                     "** Truncation will probably give the wrong result.\n", c);
1867                 }
1868                p = pt + 1;
1869                break;
1870                }
1871              /* Not correct form; fall through */
1872              }
1873    #endif
1874    
1875            /* Ordinary \x */
1876    
1877          c = 0;          c = 0;
1878          while (i++ < 2 && isxdigit(*p))          while (i++ < 2 && isxdigit(*p))
1879            {            {
# Line 632  for (;;) Line 1882  for (;;)
1882            }            }
1883          break;          break;
1884    
1885          case 0:   /* Allows for an empty line */          case 0:   /* \ followed by EOF allows for an empty line */
1886          p--;          p--;
1887          continue;          continue;
1888    
1889            case '>':
1890            while(isdigit(*p)) start_offset = start_offset * 10 + *p++ - '0';
1891            continue;
1892    
1893          case 'A':  /* Option setting */          case 'A':  /* Option setting */
1894          options |= PCRE_ANCHORED;          options |= PCRE_ANCHORED;
1895          continue;          continue;
# Line 644  for (;;) Line 1898  for (;;)
1898          options |= PCRE_NOTBOL;          options |= PCRE_NOTBOL;
1899          continue;          continue;
1900    
1901          case 'E':          case 'C':
1902          options |= PCRE_DOLLAR_ENDONLY;          if (isdigit(*p))    /* Set copy string */
1903              {
1904              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1905              copystrings |= 1 << n;
1906              }
1907            else if (isalnum(*p))
1908              {
1909              uschar *npp = copynamesptr;
1910              while (isalnum(*p)) *npp++ = *p++;
1911              *npp++ = 0;
1912              *npp = 0;
1913              n = pcre_get_stringnumber(re, (char *)copynamesptr);
1914              if (n < 0)
1915                fprintf(outfile, "no parentheses with name \"%s\"\n", copynamesptr);
1916              copynamesptr = npp;
1917              }
1918            else if (*p == '+')
1919              {
1920              callout_extra = 1;
1921              p++;
1922              }
1923            else if (*p == '-')
1924              {
1925              pcre_callout = NULL;
1926              p++;
1927              }
1928            else if (*p == '!')
1929              {
1930              callout_fail_id = 0;
1931              p++;
1932              while(isdigit(*p))
1933                callout_fail_id = callout_fail_id * 10 + *p++ - '0';
1934              callout_fail_count = 0;
1935              if (*p == '!')
1936                {
1937                p++;
1938                while(isdigit(*p))
1939                  callout_fail_count = callout_fail_count * 10 + *p++ - '0';
1940                }
1941              }
1942            else if (*p == '*')
1943              {
1944              int sign = 1;
1945              callout_data = 0;
1946              if (*(++p) == '-') { sign = -1; p++; }
1947              while(isdigit(*p))
1948                callout_data = callout_data * 10 + *p++ - '0';
1949              callout_data *= sign;
1950              callout_data_set = 1;
1951              }
1952            continue;
1953    
1954    #if !defined NODFA
1955            case 'D':
1956    #if !defined NOPOSIX
1957            if (posix || do_posix)
1958              printf("** Can't use dfa matching in POSIX mode: \\D ignored\n");
1959            else
1960    #endif
1961              use_dfa = 1;
1962            continue;
1963    
1964            case 'F':
1965            options |= PCRE_DFA_SHORTEST;
1966            continue;
1967    #endif
1968    
1969            case 'G':
1970            if (isdigit(*p))
1971              {
1972              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1973              getstrings |= 1 << n;
1974              }
1975            else if (isalnum(*p))
1976              {
1977              uschar *npp = getnamesptr;
1978              while (isalnum(*p)) *npp++ = *p++;
1979              *npp++ = 0;
1980              *npp = 0;
1981              n = pcre_get_stringnumber(re, (char *)getnamesptr);
1982              if (n < 0)
1983                fprintf(outfile, "no parentheses with name \"%s\"\n", getnamesptr);
1984              getnamesptr = npp;
1985              }
1986          continue;          continue;
1987    
1988          case 'I':          case 'L':
1989          options |= PCRE_CASELESS;          getlist = 1;
1990          continue;          continue;
1991    
1992          case 'M':          case 'M':
1993          options |= PCRE_MULTILINE;          find_match_limit = 1;
1994          continue;          continue;
1995    
1996          case 'S':          case 'N':
1997          options |= PCRE_DOTALL;          if ((options & PCRE_NOTEMPTY) != 0)
1998              options = (options & ~PCRE_NOTEMPTY) | PCRE_NOTEMPTY_ATSTART;
1999            else
2000              options |= PCRE_NOTEMPTY;
2001          continue;          continue;
2002    
2003          case 'O':          case 'O':
2004          while(isdigit(*p)) n = n * 10 + *p++ - '0';          while(isdigit(*p)) n = n * 10 + *p++ - '0';
2005          if (n <= (int)sizeof(offsets)/sizeof(int)) size_offsets = n;          if (n > size_offsets_max)
2006              {
2007              size_offsets_max = n;
2008              free(offsets);
2009              use_offsets = offsets = (int *)malloc(size_offsets_max * sizeof(int));
2010              if (offsets == NULL)
2011                {
2012                printf("** Failed to get %d bytes of memory for offsets vector\n",
2013                  (int)(size_offsets_max * sizeof(int)));
2014                yield = 1;
2015                goto EXIT;
2016                }
2017              }
2018            use_size_offsets = n;
2019            if (n == 0) use_offsets = NULL;   /* Ensures it can't write to it */
2020            continue;
2021    
2022            case 'P':
2023            options |= ((options & PCRE_PARTIAL_SOFT) == 0)?
2024              PCRE_PARTIAL_SOFT : PCRE_PARTIAL_HARD;
2025            continue;
2026    
2027            case 'Q':
2028            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2029            if (extra == NULL)
2030              {
2031              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2032              extra->flags = 0;
2033              }
2034            extra->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
2035            extra->match_limit_recursion = n;
2036            continue;
2037    
2038            case 'q':
2039            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2040            if (extra == NULL)
2041              {
2042              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2043              extra->flags = 0;
2044              }
2045            extra->flags |= PCRE_EXTRA_MATCH_LIMIT;
2046            extra->match_limit = n;
2047            continue;
2048    
2049    #if !defined NODFA
2050            case 'R':
2051            options |= PCRE_DFA_RESTART;
2052            continue;
2053    #endif
2054    
2055            case 'S':
2056            show_malloc = 1;
2057            continue;
2058    
2059            case 'Y':
2060            options |= PCRE_NO_START_OPTIMIZE;
2061          continue;          continue;
2062    
2063          case 'Z':          case 'Z':
2064          options |= PCRE_NOTEOL;          options |= PCRE_NOTEOL;
2065          continue;          continue;
2066    
2067            case '?':
2068            options |= PCRE_NO_UTF8_CHECK;
2069            continue;
2070    
2071            case '<':
2072              {
2073              int x = check_newline(p, outfile);
2074              if (x == 0) goto NEXT_DATA;
2075              options |= x;
2076              while (*p++ != '>');
2077              }
2078            continue;
2079          }          }
2080        *pp++ = c;        *q++ = c;
2081          }
2082        *q = 0;
2083        len = (int)(q - dbuffer);
2084    
2085        /* Move the data to the end of the buffer so that a read over the end of
2086        the buffer will be seen by valgrind, even if it doesn't cause a crash. If
2087        we are using the POSIX interface, we must include the terminating zero. */
2088    
2089    #if !defined NOPOSIX
2090        if (posix || do_posix)
2091          {
2092          memmove(bptr + buffer_size - len - 1, bptr, len + 1);
2093          bptr += buffer_size - len - 1;
2094          }
2095        else
2096    #endif
2097          {
2098          memmove(bptr + buffer_size - len, bptr, len);
2099          bptr += buffer_size - len;
2100          }
2101    
2102        if ((all_use_dfa || use_dfa) && find_match_limit)
2103          {
2104          printf("**Match limit not relevant for DFA matching: ignored\n");
2105          find_match_limit = 0;
2106        }        }
     *pp = 0;  
     len = pp - dbuffer;  
2107    
2108      /* Handle matching via the POSIX interface, which does not      /* Handle matching via the POSIX interface, which does not
2109      support timing. */      support timing or playing with the match limit or callout data. */
2110    
2111    #if !defined NOPOSIX
2112      if (posix || do_posix)      if (posix || do_posix)
2113        {        {
2114        int rc;        int rc;
2115        int eflags = 0;        int eflags = 0;
2116        regmatch_t pmatch[30];        regmatch_t *pmatch = NULL;
2117          if (use_size_offsets > 0)
2118            pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * use_size_offsets);
2119        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
2120        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
2121          if ((options & PCRE_NOTEMPTY) != 0) eflags |= REG_NOTEMPTY;
2122    
2123        rc = regexec(&preg, (char *)dbuffer, sizeof(pmatch)/sizeof(regmatch_t),        rc = regexec(&preg, (const char *)bptr, use_size_offsets, pmatch, eflags);
         pmatch, eflags);  
2124    
2125        if (rc != 0)        if (rc != 0)
2126          {          {
2127          (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));          (void)regerror(rc, &preg, (char *)buffer, buffer_size);
2128          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
2129          }          }
2130          else if ((((const pcre *)preg.re_pcre)->options & PCRE_NO_AUTO_CAPTURE)
2131                  != 0)
2132            {
2133            fprintf(outfile, "Matched with REG_NOSUB\n");
2134            }
2135        else        else
2136          {          {
2137          size_t i;          size_t i;
2138          for (i = 0; i < sizeof(pmatch)/sizeof(regmatch_t); i++)          for (i = 0; i < (size_t)use_size_offsets; i++)
2139            {            {
2140            if (pmatch[i].rm_so >= 0)            if (pmatch[i].rm_so >= 0)
2141              {              {
2142              fprintf(outfile, "%2d: ", i);              fprintf(outfile, "%2d: ", (int)i);
2143              pchars(dbuffer + pmatch[i].rm_so,              (void)pchars(dbuffer + pmatch[i].rm_so,
2144                pmatch[i].rm_eo - pmatch[i].rm_so);                pmatch[i].rm_eo - pmatch[i].rm_so, outfile);
2145              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2146                if (i == 0 && do_showrest)
2147                  {
2148                  fprintf(outfile, " 0+ ");
2149                  (void)pchars(dbuffer + pmatch[i].rm_eo, len - pmatch[i].rm_eo,
2150                    outfile);
2151                  fprintf(outfile, "\n");
2152                  }
2153              }              }
2154            }            }
2155          }          }
2156          free(pmatch);
2157        }        }
2158    
2159      /* Handle matching via the native interface */      /* Handle matching via the native interface - repeats for /g and /G */
2160    
2161      else      else
2162    #endif  /* !defined NOPOSIX */
2163    
2164        for (;; gmatched++)    /* Loop for /g or /G */
2165        {        {
2166        if (timeit)        markptr = NULL;
2167    
2168          if (timeitm > 0)
2169          {          {
2170          register int i;          register int i;
2171          clock_t time_taken;          clock_t time_taken;
2172          clock_t start_time = clock();          clock_t start_time = clock();
2173          for (i = 0; i < 4000; i++)  
2174            count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,  #if !defined NODFA
2175              size_offsets);          if (all_use_dfa || use_dfa)
2176              {
2177              int workspace[1000];
2178              for (i = 0; i < timeitm; i++)
2179                count = pcre_dfa_exec(re, extra, (char *)bptr, len, start_offset,
2180                  options | g_notempty, use_offsets, use_size_offsets, workspace,
2181                  sizeof(workspace)/sizeof(int));
2182              }
2183            else
2184    #endif
2185    
2186            for (i = 0; i < timeitm; i++)
2187              count = pcre_exec(re, extra, (char *)bptr, len,
2188                start_offset, options | g_notempty, use_offsets, use_size_offsets);
2189    
2190          time_taken = clock() - start_time;          time_taken = clock() - start_time;
2191          fprintf(outfile, "Execute time %.2f milliseconds\n",          fprintf(outfile, "Execute time %.4f milliseconds\n",
2192            ((double)time_taken)/(4 * CLOCKS_PER_SEC));            (((double)time_taken * 1000.0) / (double)timeitm) /
2193                (double)CLOCKS_PER_SEC);
2194            }
2195    
2196          /* If find_match_limit is set, we want to do repeated matches with
2197          varying limits in order to find the minimum value for the match limit and
2198          for the recursion limit. */
2199    
2200          if (find_match_limit)
2201            {
2202            if (extra == NULL)
2203              {
2204              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2205              extra->flags = 0;
2206              }
2207    
2208            (void)check_match_limit(re, extra, bptr, len, start_offset,
2209              options|g_notempty, use_offsets, use_size_offsets,
2210              PCRE_EXTRA_MATCH_LIMIT, &(extra->match_limit),
2211              PCRE_ERROR_MATCHLIMIT, "match()");
2212    
2213            count = check_match_limit(re, extra, bptr, len, start_offset,
2214              options|g_notempty, use_offsets, use_size_offsets,
2215              PCRE_EXTRA_MATCH_LIMIT_RECURSION, &(extra->match_limit_recursion),
2216              PCRE_ERROR_RECURSIONLIMIT, "match() recursion");
2217            }
2218    
2219          /* If callout_data is set, use the interface with additional data */
2220    
2221          else if (callout_data_set)
2222            {
2223            if (extra == NULL)
2224              {
2225              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2226              extra->flags = 0;
2227              }
2228            extra->flags |= PCRE_EXTRA_CALLOUT_DATA;
2229            extra->callout_data = &callout_data;
2230            count = pcre_exec(re, extra, (char *)bptr, len, start_offset,
2231              options | g_notempty, use_offsets, use_size_offsets);
2232            extra->flags &= ~PCRE_EXTRA_CALLOUT_DATA;
2233          }          }
2234    
2235        count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,        /* The normal case is just to do the match once, with the default
2236          size_offsets);        value of match_limit. */
2237    
2238    #if !defined NODFA
2239          else if (all_use_dfa || use_dfa)
2240            {
2241            int workspace[1000];
2242            count = pcre_dfa_exec(re, extra, (char *)bptr, len, start_offset,
2243              options | g_notempty, use_offsets, use_size_offsets, workspace,
2244              sizeof(workspace)/sizeof(int));
2245            if (count == 0)
2246              {
2247              fprintf(outfile, "Matched, but too many subsidiary matches\n");
2248              count = use_size_offsets/2;
2249              }
2250            }
2251    #endif
2252    
2253        if (count == 0)        else
2254          {          {
2255          fprintf(outfile, "Matched, but too many substrings\n");          count = pcre_exec(re, extra, (char *)bptr, len,
2256          count = size_offsets/2;            start_offset, options | g_notempty, use_offsets, use_size_offsets);
2257            if (count == 0)
2258              {
2259              fprintf(outfile, "Matched, but too many substrings\n");
2260              count = use_size_offsets/3;
2261              }
2262          }          }
2263    
2264          /* Matched */
2265    
2266        if (count >= 0)        if (count >= 0)
2267          {          {
2268          int i;          int i, maxcount;
2269          count *= 2;  
2270          for (i = 0; i < count; i += 2)  #if !defined NODFA
2271            if (all_use_dfa || use_dfa) maxcount = use_size_offsets/2; else
2272    #endif
2273              maxcount = use_size_offsets/3;
2274    
2275            /* This is a check against a lunatic return value. */
2276    
2277            if (count > maxcount)
2278              {
2279              fprintf(outfile,
2280                "** PCRE error: returned count %d is too big for offset size %d\n",
2281                count, use_size_offsets);
2282              count = use_size_offsets/3;
2283              if (do_g || do_G)
2284                {
2285                fprintf(outfile, "** /%c loop abandoned\n", do_g? 'g' : 'G');
2286                do_g = do_G = FALSE;        /* Break g/G loop */
2287                }
2288              }
2289    
2290            for (i = 0; i < count * 2; i += 2)
2291            {            {
2292            if (offsets[i] < 0)            if (use_offsets[i] < 0)
2293              fprintf(outfile, "%2d: <unset>\n", i/2);              fprintf(outfile, "%2d: <unset>\n", i/2);
2294            else            else
2295              {              {
2296              fprintf(outfile, "%2d: ", i/2);              fprintf(outfile, "%2d: ", i/2);
2297              pchars(dbuffer + offsets[i], offsets[i+1] - offsets[i]);              (void)pchars(bptr + use_offsets[i],
2298                  use_offsets[i+1] - use_offsets[i], outfile);
2299              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2300                if (i == 0)
2301                  {
2302                  if (do_showrest)
2303                    {
2304                    fprintf(outfile, " 0+ ");
2305                    (void)pchars(bptr + use_offsets[i+1], len - use_offsets[i+1],
2306                      outfile);
2307                    fprintf(outfile, "\n");
2308                    }
2309                  }
2310                }
2311              }
2312    
2313            if (markptr != NULL) fprintf(outfile, "MK: %s\n", markptr);
2314    
2315            for (i = 0; i < 32; i++)
2316              {
2317              if ((copystrings & (1 << i)) != 0)
2318                {
2319                char copybuffer[256];
2320                int rc = pcre_copy_substring((char *)bptr, use_offsets, count,
2321                  i, copybuffer, sizeof(copybuffer));
2322                if (rc < 0)
2323                  fprintf(outfile, "copy substring %d failed %d\n", i, rc);
2324                else
2325                  fprintf(outfile, "%2dC %s (%d)\n", i, copybuffer, rc);
2326                }
2327              }
2328    
2329            for (copynamesptr = copynames;
2330                 *copynamesptr != 0;
2331                 copynamesptr += (int)strlen((char*)copynamesptr) + 1)
2332              {
2333              char copybuffer[256];
2334              int rc = pcre_copy_named_substring(re, (char *)bptr, use_offsets,
2335                count, (char *)copynamesptr, copybuffer, sizeof(copybuffer));
2336              if (rc < 0)
2337                fprintf(outfile, "copy substring %s failed %d\n", copynamesptr, rc);
2338              else
2339                fprintf(outfile, "  C %s (%d) %s\n", copybuffer, rc, copynamesptr);
2340              }
2341    
2342            for (i = 0; i < 32; i++)
2343              {
2344              if ((getstrings & (1 << i)) != 0)
2345                {
2346                const char *substring;
2347                int rc = pcre_get_substring((char *)bptr, use_offsets, count,
2348                  i, &substring);
2349                if (rc < 0)
2350                  fprintf(outfile, "get substring %d failed %d\n", i, rc);
2351                else
2352                  {
2353                  fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
2354                  pcre_free_substring(substring);
2355                  }
2356                }
2357              }
2358    
2359            for (getnamesptr = getnames;
2360                 *getnamesptr != 0;
2361                 getnamesptr += (int)strlen((char*)getnamesptr) + 1)
2362              {
2363              const char *substring;
2364              int rc = pcre_get_named_substring(re, (char *)bptr, use_offsets,
2365                count, (char *)getnamesptr, &substring);
2366              if (rc < 0)
2367                fprintf(outfile, "copy substring %s failed %d\n", getnamesptr, rc);
2368              else
2369                {
2370                fprintf(outfile, "  G %s (%d) %s\n", substring, rc, getnamesptr);
2371                pcre_free_substring(substring);
2372                }
2373              }
2374    
2375            if (getlist)
2376              {
2377              const char **stringlist;
2378              int rc = pcre_get_substring_list((char *)bptr, use_offsets, count,
2379                &stringlist);
2380              if (rc < 0)
2381                fprintf(outfile, "get substring list failed %d\n", rc);
2382              else
2383                {
2384                for (i = 0; i < count; i++)
2385                  fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
2386                if (stringlist[i] != NULL)
2387                  fprintf(outfile, "string list not terminated by NULL\n");
2388                /* free((void *)stringlist); */
2389                pcre_free_substring_list(stringlist);
2390              }              }
2391            }            }
2392          }          }
2393    
2394          /* There was a partial match */
2395    
2396          else if (count == PCRE_ERROR_PARTIAL)
2397            {
2398            if (markptr == NULL) fprintf(outfile, "Partial match");
2399              else fprintf(outfile, "Partial match, mark=%s", markptr);
2400            if (use_size_offsets > 1)
2401              {
2402              fprintf(outfile, ": ");
2403              pchars(bptr + use_offsets[0], use_offsets[1] - use_offsets[0],
2404                outfile);
2405              }
2406            fprintf(outfile, "\n");
2407            break;  /* Out of the /g loop */
2408            }
2409    
2410          /* Failed to match. If this is a /g or /G loop and we previously set
2411          g_notempty after a null match, this is not necessarily the end. We want
2412          to advance the start offset, and continue. We won't be at the end of the
2413          string - that was checked before setting g_notempty.
2414    
2415          Complication arises in the case when the newline option is "any" or
2416          "anycrlf". If the previous match was at the end of a line terminated by
2417          CRLF, an advance of one character just passes the \r, whereas we should
2418          prefer the longer newline sequence, as does the code in pcre_exec().
2419          Fudge the offset value to achieve this.
2420    
2421          Otherwise, in the case of UTF-8 matching, the advance must be one
2422          character, not one byte. */
2423    
2424        else        else
2425          {          {
2426          if (count == -1) fprintf(outfile, "No match\n");          if (g_notempty != 0)
2427              {
2428              int onechar = 1;
2429              unsigned int obits = ((real_pcre *)re)->options;
2430              use_offsets[0] = start_offset;
2431              if ((obits & PCRE_NEWLINE_BITS) == 0)
2432                {
2433                int d;
2434                (void)pcre_config(PCRE_CONFIG_NEWLINE, &d);
2435                /* Note that these values are always the ASCII ones, even in
2436                EBCDIC environments. CR = 13, NL = 10. */
2437                obits = (d == 13)? PCRE_NEWLINE_CR :
2438                        (d == 10)? PCRE_NEWLINE_LF :
2439                        (d == (13<<8 | 10))? PCRE_NEWLINE_CRLF :
2440                        (d == -2)? PCRE_NEWLINE_ANYCRLF :
2441                        (d == -1)? PCRE_NEWLINE_ANY : 0;
2442                }
2443              if (((obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANY ||
2444                   (obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANYCRLF)
2445                  &&
2446                  start_offset < len - 1 &&
2447                  bptr[start_offset] == '\r' &&
2448                  bptr[start_offset+1] == '\n')
2449                onechar++;
2450              else if (use_utf8)
2451                {
2452                while (start_offset + onechar < len)
2453                  {
2454                  int tb = bptr[start_offset+onechar];
2455                  if (tb <= 127) break;
2456                  tb &= 0xc0;
2457                  if (tb != 0 && tb != 0xc0) onechar++;
2458                  }
2459                }
2460              use_offsets[1] = start_offset + onechar;
2461              }
2462            else
2463              {
2464              if (count == PCRE_ERROR_NOMATCH)
2465                {
2466                if (gmatched == 0)
2467                  {
2468                  if (markptr == NULL) fprintf(outfile, "No match\n");
2469                    else fprintf(outfile, "No match, mark = %s\n", markptr);
2470                  }
2471                }
2472            else fprintf(outfile, "Error %d\n", count);            else fprintf(outfile, "Error %d\n", count);
2473              break;  /* Out of the /g loop */
2474              }
2475          }          }
       }  
     }  
2476    
2477          /* If not /g or /G we are done */
2478    
2479          if (!do_g && !do_G) break;
2480    
2481          /* If we have matched an empty string, first check to see if we are at
2482          the end of the subject. If so, the /g loop is over. Otherwise, mimic what
2483          Perl's /g options does. This turns out to be rather cunning. First we set
2484          PCRE_NOTEMPTY_ATSTART and PCRE_ANCHORED and try the match again at the
2485          same point. If this fails (picked up above) we advance to the next
2486          character. */
2487    
2488          g_notempty = 0;
2489    
2490          if (use_offsets[0] == use_offsets[1])
2491            {
2492            if (use_offsets[0] == len) break;
2493            g_notempty = PCRE_NOTEMPTY_ATSTART | PCRE_ANCHORED;
2494            }
2495    
2496          /* For /g, update the start offset, leaving the rest alone */
2497    
2498          if (do_g) start_offset = use_offsets[1];
2499    
2500          /* For /G, update the pointer and length */
2501    
2502          else
2503            {
2504            bptr += use_offsets[1];
2505            len -= use_offsets[1];
2506            }
2507          }  /* End of loop for /g and /G */
2508    
2509        NEXT_DATA: continue;
2510        }    /* End of loop for data lines */
2511    
2512      CONTINUE:
2513    
2514    #if !defined NOPOSIX
2515    if (posix || do_posix) regfree(&preg);    if (posix || do_posix) regfree(&preg);
2516    if (re != NULL) free(re);  #endif
2517    if (extra != NULL) free(extra);  
2518      if (re != NULL) new_free(re);
2519      if (extra != NULL) new_free(extra);
2520      if (tables != NULL)
2521        {
2522        new_free((void *)tables);
2523        setlocale(LC_CTYPE, "C");
2524        locale_set = 0;
2525        }
2526    }    }
2527    
2528  END_OFF:  if (infile == stdin) fprintf(outfile, "\n");
2529  fprintf(outfile, "\n");  
2530  return 0;  EXIT:
2531    
2532    if (infile != NULL && infile != stdin) fclose(infile);
2533    if (outfile != NULL && outfile != stdout) fclose(outfile);
2534    
2535    free(buffer);
2536    free(dbuffer);
2537    free(pbuffer);
2538    free(offsets);
2539    
2540    return yield;
2541  }  }
2542    
2543  /* End */  /* End of pcretest.c */

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