/[pcre]/code/branches/pcre16/pcretest.c
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revision 11 by nigel, Sat Feb 24 21:38:17 2007 UTC revision 512 by ph10, Tue Mar 30 11:11:52 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("0,");  
     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));  
     code++;  
     goto CLASS_REF_REPEAT;  
   
     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;  
   
       CLASS_REF_REPEAT:  
   
       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 = 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(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  /* Character string printing function. */  Returns:     number of characters placed in the buffer
406    */
407    
408  static void pchars(unsigned char *p, int length)  #if !defined NOUTF8
409    
410    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, where
745    xxx is LF, CR, CRLF, ANYCRLF, or ANY. Print a message and return 0 if there is
746    no match.
747    
748    Arguments:
749      p           points after the leading '<'
750      f           file for error message
751    
752    Returns:      appropriate PCRE_NEWLINE_xxx flags, or 0
753    */
754    
755    static int
756    check_newline(uschar *p, FILE *f)
757    {
758    if (strncmpic(p, (uschar *)"cr>", 3) == 0) return PCRE_NEWLINE_CR;
759    if (strncmpic(p, (uschar *)"lf>", 3) == 0) return PCRE_NEWLINE_LF;
760    if (strncmpic(p, (uschar *)"crlf>", 5) == 0) return PCRE_NEWLINE_CRLF;
761    if (strncmpic(p, (uschar *)"anycrlf>", 8) == 0) return PCRE_NEWLINE_ANYCRLF;
762    if (strncmpic(p, (uschar *)"any>", 4) == 0) return PCRE_NEWLINE_ANY;
763    if (strncmpic(p, (uschar *)"bsr_anycrlf>", 12) == 0) return PCRE_BSR_ANYCRLF;
764    if (strncmpic(p, (uschar *)"bsr_unicode>", 12) == 0) return PCRE_BSR_UNICODE;
765    fprintf(f, "Unknown newline type at: <%s\n", p);
766    return 0;
767  }  }
768    
769    
770    
771    /*************************************************
772    *             Usage function                     *
773    *************************************************/
774    
775    static void
776    usage(void)
777    {
778    printf("Usage:     pcretest [options] [<input file> [<output file>]]\n\n");
779    printf("Input and output default to stdin and stdout.\n");
780    #ifdef SUPPORT_LIBREADLINE
781    printf("If input is a terminal, readline() is used to read from it.\n");
782    #else
783    printf("This version of pcretest is not linked with readline().\n");
784    #endif
785    printf("\nOptions:\n");
786    printf("  -b       show compiled code (bytecode)\n");
787    printf("  -C       show PCRE compile-time options and exit\n");
788    printf("  -d       debug: show compiled code and information (-b and -i)\n");
789    #if !defined NODFA
790    printf("  -dfa     force DFA matching for all subjects\n");
791    #endif
792    printf("  -help    show usage information\n");
793    printf("  -i       show information about compiled patterns\n"
794           "  -M       find MATCH_LIMIT minimum for each subject\n"
795           "  -m       output memory used information\n"
796           "  -o <n>   set size of offsets vector to <n>\n");
797    #if !defined NOPOSIX
798    printf("  -p       use POSIX interface\n");
799    #endif
800    printf("  -q       quiet: do not output PCRE version number at start\n");
801    printf("  -S <n>   set stack size to <n> megabytes\n");
802    printf("  -s       output store (memory) used information\n"
803           "  -t       time compilation and execution\n");
804    printf("  -t <n>   time compilation and execution, repeating <n> times\n");
805    printf("  -tm      time execution (matching) only\n");
806    printf("  -tm <n>  time execution (matching) only, repeating <n> times\n");
807    }
808    
809    
810    
811    /*************************************************
812    *                Main Program                    *
813    *************************************************/
814    
815  /* 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
816  consist of a regular expression, in delimiters and optionally followed by  consist of a regular expression, in delimiters and optionally followed by
817  options, followed by a set of test data, terminated by an empty line. */  options, followed by a set of test data, terminated by an empty line. */
# Line 263  int main(int argc, char **argv) Line 821  int main(int argc, char **argv)
821  FILE *infile = stdin;  FILE *infile = stdin;
822  int options = 0;  int options = 0;
823  int study_options = 0;  int study_options = 0;
824    int default_find_match_limit = FALSE;
825  int op = 1;  int op = 1;
826  int timeit = 0;  int timeit = 0;
827    int timeitm = 0;
828  int showinfo = 0;  int showinfo = 0;
829    int showstore = 0;
830    int quiet = 0;
831    int size_offsets = 45;
832    int size_offsets_max;
833    int *offsets = NULL;
834    #if !defined NOPOSIX
835  int posix = 0;  int posix = 0;
836    #endif
837  int debug = 0;  int debug = 0;
838  int done = 0;  int done = 0;
839  unsigned char buffer[30000];  int all_use_dfa = 0;
840  unsigned char dbuffer[1024];  int yield = 0;
841    int stack_size;
842    
843    /* These vectors store, end-to-end, a list of captured substring names. Assume
844    that 1024 is plenty long enough for the few names we'll be testing. */
845    
846    uschar copynames[1024];
847    uschar getnames[1024];
848    
849    uschar *copynamesptr;
850    uschar *getnamesptr;
851    
852    /* Get buffers from malloc() so that Electric Fence will check their misuse
853    when I am debugging. They grow automatically when very long lines are read. */
854    
855    buffer = (unsigned char *)malloc(buffer_size);
856    dbuffer = (unsigned char *)malloc(buffer_size);
857    pbuffer = (unsigned char *)malloc(buffer_size);
858    
859  /* Static so that new_malloc can use it. */  /* The outfile variable is static so that new_malloc can use it. */
860    
861  outfile = stdout;  outfile = stdout;
862    
863    /* The following  _setmode() stuff is some Windows magic that tells its runtime
864    library to translate CRLF into a single LF character. At least, that's what
865    I've been told: never having used Windows I take this all on trust. Originally
866    it set 0x8000, but then I was advised that _O_BINARY was better. */
867    
868    #if defined(_WIN32) || defined(WIN32)
869    _setmode( _fileno( stdout ), _O_BINARY );
870    #endif
871    
872  /* Scan options */  /* Scan options */
873    
874  while (argc > 1 && argv[op][0] == '-')  while (argc > 1 && argv[op][0] == '-')
875    {    {
876    if (strcmp(argv[op], "-s") == 0) log_store = 1;    unsigned char *endptr;
877    else if (strcmp(argv[op], "-t") == 0) timeit = 1;  
878      if (strcmp(argv[op], "-s") == 0 || strcmp(argv[op], "-m") == 0)
879        showstore = 1;
880      else if (strcmp(argv[op], "-q") == 0) quiet = 1;
881      else if (strcmp(argv[op], "-b") == 0) debug = 1;
882    else if (strcmp(argv[op], "-i") == 0) showinfo = 1;    else if (strcmp(argv[op], "-i") == 0) showinfo = 1;
883    else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;    else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;
884      else if (strcmp(argv[op], "-M") == 0) default_find_match_limit = TRUE;
885    #if !defined NODFA
886      else if (strcmp(argv[op], "-dfa") == 0) all_use_dfa = 1;
887    #endif
888      else if (strcmp(argv[op], "-o") == 0 && argc > 2 &&
889          ((size_offsets = get_value((unsigned char *)argv[op+1], &endptr)),
890            *endptr == 0))
891        {
892        op++;
893        argc--;
894        }
895      else if (strcmp(argv[op], "-t") == 0 || strcmp(argv[op], "-tm") == 0)
896        {
897        int both = argv[op][2] == 0;
898        int temp;
899        if (argc > 2 && (temp = get_value((unsigned char *)argv[op+1], &endptr),
900                         *endptr == 0))
901          {
902          timeitm = temp;
903          op++;
904          argc--;
905          }
906        else timeitm = LOOPREPEAT;
907        if (both) timeit = timeitm;
908        }
909      else if (strcmp(argv[op], "-S") == 0 && argc > 2 &&
910          ((stack_size = get_value((unsigned char *)argv[op+1], &endptr)),
911            *endptr == 0))
912        {
913    #if defined(_WIN32) || defined(WIN32)
914        printf("PCRE: -S not supported on this OS\n");
915        exit(1);
916    #else
917        int rc;
918        struct rlimit rlim;
919        getrlimit(RLIMIT_STACK, &rlim);
920        rlim.rlim_cur = stack_size * 1024 * 1024;
921        rc = setrlimit(RLIMIT_STACK, &rlim);
922        if (rc != 0)
923          {
924        printf("PCRE: setrlimit() failed with error %d\n", rc);
925        exit(1);
926          }
927        op++;
928        argc--;
929    #endif
930        }
931    #if !defined NOPOSIX
932    else if (strcmp(argv[op], "-p") == 0) posix = 1;    else if (strcmp(argv[op], "-p") == 0) posix = 1;
933    #endif
934      else if (strcmp(argv[op], "-C") == 0)
935        {
936        int rc;
937        unsigned long int lrc;
938        printf("PCRE version %s\n", pcre_version());
939        printf("Compiled with\n");
940        (void)pcre_config(PCRE_CONFIG_UTF8, &rc);
941        printf("  %sUTF-8 support\n", rc? "" : "No ");
942        (void)pcre_config(PCRE_CONFIG_UNICODE_PROPERTIES, &rc);
943        printf("  %sUnicode properties support\n", rc? "" : "No ");
944        (void)pcre_config(PCRE_CONFIG_NEWLINE, &rc);
945        /* Note that these values are always the ASCII values, even
946        in EBCDIC environments. CR is 13 and NL is 10. */
947        printf("  Newline sequence is %s\n", (rc == 13)? "CR" :
948          (rc == 10)? "LF" : (rc == (13<<8 | 10))? "CRLF" :
949          (rc == -2)? "ANYCRLF" :
950          (rc == -1)? "ANY" : "???");
951        (void)pcre_config(PCRE_CONFIG_BSR, &rc);
952        printf("  \\R matches %s\n", rc? "CR, LF, or CRLF only" :
953                                         "all Unicode newlines");
954        (void)pcre_config(PCRE_CONFIG_LINK_SIZE, &rc);
955        printf("  Internal link size = %d\n", rc);
956        (void)pcre_config(PCRE_CONFIG_POSIX_MALLOC_THRESHOLD, &rc);
957        printf("  POSIX malloc threshold = %d\n", rc);
958        (void)pcre_config(PCRE_CONFIG_MATCH_LIMIT, &lrc);
959        printf("  Default match limit = %ld\n", lrc);
960        (void)pcre_config(PCRE_CONFIG_MATCH_LIMIT_RECURSION, &lrc);
961        printf("  Default recursion depth limit = %ld\n", lrc);
962        (void)pcre_config(PCRE_CONFIG_STACKRECURSE, &rc);
963        printf("  Match recursion uses %s\n", rc? "stack" : "heap");
964        goto EXIT;
965        }
966      else if (strcmp(argv[op], "-help") == 0 ||
967               strcmp(argv[op], "--help") == 0)
968        {
969        usage();
970        goto EXIT;
971        }
972    else    else
973      {      {
974      printf("*** Unknown option %s\n", argv[op]);      printf("** Unknown or malformed option %s\n", argv[op]);
975      return 1;      usage();
976        yield = 1;
977        goto EXIT;
978      }      }
979    op++;    op++;
980    argc--;    argc--;
981    }    }
982    
983    /* Get the store for the offsets vector, and remember what it was */
984    
985    size_offsets_max = size_offsets;
986    offsets = (int *)malloc(size_offsets_max * sizeof(int));
987    if (offsets == NULL)
988      {
989      printf("** Failed to get %d bytes of memory for offsets vector\n",
990        (int)(size_offsets_max * sizeof(int)));
991      yield = 1;
992      goto EXIT;
993      }
994    
995  /* Sort out the input and output files */  /* Sort out the input and output files */
996    
997  if (argc > 1)  if (argc > 1)
998    {    {
999    infile = fopen(argv[op], "r");    infile = fopen(argv[op], INPUT_MODE);
1000    if (infile == NULL)    if (infile == NULL)
1001      {      {
1002      printf("** Failed to open %s\n", argv[op]);      printf("** Failed to open %s\n", argv[op]);
1003      return 1;      yield = 1;
1004        goto EXIT;
1005      }      }
1006    }    }
1007    
1008  if (argc > 2)  if (argc > 2)
1009    {    {
1010    outfile = fopen(argv[op+1], "w");    outfile = fopen(argv[op+1], OUTPUT_MODE);
1011    if (outfile == NULL)    if (outfile == NULL)
1012      {      {
1013      printf("** Failed to open %s\n", argv[op+1]);      printf("** Failed to open %s\n", argv[op+1]);
1014      return 1;      yield = 1;
1015        goto EXIT;
1016      }      }
1017    }    }
1018    
1019  /* Set alternative malloc function */  /* Set alternative malloc function */
1020    
1021  pcre_malloc = new_malloc;  pcre_malloc = new_malloc;
1022    pcre_free = new_free;
1023    pcre_stack_malloc = stack_malloc;
1024    pcre_stack_free = stack_free;
1025    
1026  /* Heading line, then prompt for first re if stdin */  /* Heading line unless quiet, then prompt for first regex if stdin */
1027    
1028  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());  
1029    
1030  /* Main loop */  /* Main loop */
1031    
# Line 331  while (!done) Line 1033  while (!done)
1033    {    {
1034    pcre *re = NULL;    pcre *re = NULL;
1035    pcre_extra *extra = NULL;    pcre_extra *extra = NULL;
1036    
1037    #if !defined NOPOSIX  /* There are still compilers that require no indent */
1038    regex_t preg;    regex_t preg;
   const char *error;  
   unsigned char *p, *pp;  
   int do_study = 0;  
   int do_debug = 0;  
1039    int do_posix = 0;    int do_posix = 0;
1040    int erroroffset, len, delimiter;  #endif
1041    
1042    if (infile == stdin) printf("  re> ");    const char *error;
1043    if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) break;    unsigned char *markptr;
1044    if (infile != stdin) fprintf(outfile, (char *)buffer);    unsigned char *p, *pp, *ppp;
1045      unsigned char *to_file = NULL;
1046      const unsigned char *tables = NULL;
1047      unsigned long int true_size, true_study_size = 0;
1048      size_t size, regex_gotten_store;
1049      int do_mark = 0;
1050      int do_study = 0;
1051      int do_debug = debug;
1052      int do_G = 0;
1053      int do_g = 0;
1054      int do_showinfo = showinfo;
1055      int do_showrest = 0;
1056      int do_flip = 0;
1057      int erroroffset, len, delimiter, poffset;
1058    
1059      use_utf8 = 0;
1060      debug_lengths = 1;
1061    
1062      if (extend_inputline(infile, buffer, "  re> ") == NULL) break;
1063      if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1064      fflush(outfile);
1065    
1066    p = buffer;    p = buffer;
1067    while (isspace(*p)) p++;    while (isspace(*p)) p++;
1068    if (*p == 0) continue;    if (*p == 0) continue;
1069    
1070    /* 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. */
1071    complete, read more. */  
1072      if (*p == '<' && strchr((char *)(p+1), '<') == NULL)
1073        {
1074        unsigned long int magic, get_options;
1075        uschar sbuf[8];
1076        FILE *f;
1077    
1078        p++;
1079        pp = p + (int)strlen((char *)p);
1080        while (isspace(pp[-1])) pp--;
1081        *pp = 0;
1082    
1083        f = fopen((char *)p, "rb");
1084        if (f == NULL)
1085          {
1086          fprintf(outfile, "Failed to open %s: %s\n", p, strerror(errno));
1087          continue;
1088          }
1089    
1090        if (fread(sbuf, 1, 8, f) != 8) goto FAIL_READ;
1091    
1092        true_size =
1093          (sbuf[0] << 24) | (sbuf[1] << 16) | (sbuf[2] << 8) | sbuf[3];
1094        true_study_size =
1095          (sbuf[4] << 24) | (sbuf[5] << 16) | (sbuf[6] << 8) | sbuf[7];
1096    
1097        re = (real_pcre *)new_malloc(true_size);
1098        regex_gotten_store = gotten_store;
1099    
1100        if (fread(re, 1, true_size, f) != true_size) goto FAIL_READ;
1101    
1102        magic = ((real_pcre *)re)->magic_number;
1103        if (magic != MAGIC_NUMBER)
1104          {
1105          if (byteflip(magic, sizeof(magic)) == MAGIC_NUMBER)
1106            {
1107            do_flip = 1;
1108            }
1109          else
1110            {
1111            fprintf(outfile, "Data in %s is not a compiled PCRE regex\n", p);
1112            fclose(f);
1113            continue;
1114            }
1115          }
1116    
1117        fprintf(outfile, "Compiled regex%s loaded from %s\n",
1118          do_flip? " (byte-inverted)" : "", p);
1119    
1120        /* Need to know if UTF-8 for printing data strings */
1121    
1122        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1123        use_utf8 = (get_options & PCRE_UTF8) != 0;
1124    
1125        /* Now see if there is any following study data */
1126    
1127        if (true_study_size != 0)
1128          {
1129          pcre_study_data *psd;
1130    
1131          extra = (pcre_extra *)new_malloc(sizeof(pcre_extra) + true_study_size);
1132          extra->flags = PCRE_EXTRA_STUDY_DATA;
1133    
1134          psd = (pcre_study_data *)(((char *)extra) + sizeof(pcre_extra));
1135          extra->study_data = psd;
1136    
1137          if (fread(psd, 1, true_study_size, f) != true_study_size)
1138            {
1139            FAIL_READ:
1140            fprintf(outfile, "Failed to read data from %s\n", p);
1141            if (extra != NULL) new_free(extra);
1142            if (re != NULL) new_free(re);
1143            fclose(f);
1144            continue;
1145            }
1146          fprintf(outfile, "Study data loaded from %s\n", p);
1147          do_study = 1;     /* To get the data output if requested */
1148          }
1149        else fprintf(outfile, "No study data\n");
1150    
1151        fclose(f);
1152        goto SHOW_INFO;
1153        }
1154    
1155      /* In-line pattern (the usual case). Get the delimiter and seek the end of
1156      the pattern; if is isn't complete, read more. */
1157    
1158    delimiter = *p++;    delimiter = *p++;
1159    
1160    if (isalnum(delimiter))    if (isalnum(delimiter) || delimiter == '\\')
1161      {      {
1162      fprintf(outfile, "** Delimiter must not be alphameric\n");      fprintf(outfile, "** Delimiter must not be alphanumeric or \\\n");
1163      goto SKIP_DATA;      goto SKIP_DATA;
1164      }      }
1165    
1166    pp = p;    pp = p;
1167      poffset = p - buffer;
1168    
1169    for(;;)    for(;;)
1170      {      {
1171      while (*pp != 0 && *pp != delimiter) pp++;      while (*pp != 0)
     if (*pp != 0) break;  
   
     len = sizeof(buffer) - (pp - buffer);  
     if (len < 256)  
1172        {        {
1173        fprintf(outfile, "** Expression too long - missing delimiter?\n");        if (*pp == '\\' && pp[1] != 0) pp++;
1174        goto SKIP_DATA;          else if (*pp == delimiter) break;
1175          pp++;
1176        }        }
1177        if (*pp != 0) break;
1178      if (infile == stdin) printf("    > ");      if ((pp = extend_inputline(infile, pp, "    > ")) == NULL)
     if (fgets((char *)pp, len, infile) == NULL)  
1179        {        {
1180        fprintf(outfile, "** Unexpected EOF\n");        fprintf(outfile, "** Unexpected EOF\n");
1181        done = 1;        done = 1;
1182        goto CONTINUE;        goto CONTINUE;
1183        }        }
1184      if (infile != stdin) fprintf(outfile, (char *)pp);      if (infile != stdin) fprintf(outfile, "%s", (char *)pp);
1185      }      }
1186    
1187    /* Terminate the pattern at the delimiter */    /* The buffer may have moved while being extended; reset the start of data
1188      pointer to the correct relative point in the buffer. */
1189    
1190      p = buffer + poffset;
1191    
1192      /* If the first character after the delimiter is backslash, make
1193      the pattern end with backslash. This is purely to provide a way
1194      of testing for the error message when a pattern ends with backslash. */
1195    
1196      if (pp[1] == '\\') *pp++ = '\\';
1197    
1198      /* Terminate the pattern at the delimiter, and save a copy of the pattern
1199      for callouts. */
1200    
1201    *pp++ = 0;    *pp++ = 0;
1202      strcpy((char *)pbuffer, (char *)p);
1203    
1204    /* Look for options after final delimiter */    /* Look for options after final delimiter */
1205    
1206    options = 0;    options = 0;
1207    study_options = 0;    study_options = 0;
1208      log_store = showstore;  /* default from command line */
1209    
1210    while (*pp != 0)    while (*pp != 0)
1211      {      {
1212      switch (*pp++)      switch (*pp++)
1213        {        {
1214          case 'f': options |= PCRE_FIRSTLINE; break;
1215          case 'g': do_g = 1; break;
1216        case 'i': options |= PCRE_CASELESS; break;        case 'i': options |= PCRE_CASELESS; break;
1217        case 'm': options |= PCRE_MULTILINE; break;        case 'm': options |= PCRE_MULTILINE; break;
1218        case 's': options |= PCRE_DOTALL; break;        case 's': options |= PCRE_DOTALL; break;
1219        case 'x': options |= PCRE_EXTENDED; break;        case 'x': options |= PCRE_EXTENDED; break;
1220    
1221          case '+': do_showrest = 1; break;
1222        case 'A': options |= PCRE_ANCHORED; break;        case 'A': options |= PCRE_ANCHORED; break;
1223        case 'D': do_debug = 1; break;        case 'B': do_debug = 1; break;
1224          case 'C': options |= PCRE_AUTO_CALLOUT; break;
1225          case 'D': do_debug = do_showinfo = 1; break;
1226        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;
1227          case 'F': do_flip = 1; break;
1228          case 'G': do_G = 1; break;
1229          case 'I': do_showinfo = 1; break;
1230          case 'J': options |= PCRE_DUPNAMES; break;
1231          case 'K': do_mark = 1; break;
1232          case 'M': log_store = 1; break;
1233          case 'N': options |= PCRE_NO_AUTO_CAPTURE; break;
1234    
1235    #if !defined NOPOSIX
1236        case 'P': do_posix = 1; break;        case 'P': do_posix = 1; break;
1237    #endif
1238    
1239        case 'S': do_study = 1; break;        case 'S': do_study = 1; break;
1240        case 'I': study_options |= PCRE_CASELESS; break;        case 'U': options |= PCRE_UNGREEDY; 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 (strncmp((char *)pp, "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;
# Line 413  while (!done) Line 1295  while (!done)
1295      }      }
1296    
1297    /* Handle compiling 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_UNGREEDY) != 0) cflags |= REG_UNGREEDY;
1313    
1314      rc = regcomp(&preg, (char *)p, cflags);      rc = regcomp(&preg, (char *)p, cflags);
1315    
1316      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
# Line 428  while (!done) Line 1318  while (!done)
1318    
1319      if (rc != 0)      if (rc != 0)
1320        {        {
1321        (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));        (void)regerror(rc, &preg, (char *)buffer, buffer_size);
1322        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
1323        goto SKIP_DATA;        goto SKIP_DATA;
1324        }        }
# Line 437  while (!done) Line 1327  while (!done)
1327    /* Handle compiling via the native interface */    /* Handle compiling via the native interface */
1328    
1329    else    else
1330    #endif  /* !defined NOPOSIX */
1331    
1332      {      {
1333      if (timeit)      unsigned long int get_options;
1334    
1335        if (timeit > 0)
1336        {        {
1337        register int i;        register int i;
1338        clock_t time_taken;        clock_t time_taken;
1339        clock_t start_time = clock();        clock_t start_time = clock();
1340        for (i = 0; i < 4000; i++)        for (i = 0; i < timeit; i++)
1341          {          {
1342          re = pcre_compile((char *)p, options, &error, &erroroffset);          re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1343          if (re != NULL) free(re);          if (re != NULL) free(re);
1344          }          }
1345        time_taken = clock() - start_time;        time_taken = clock() - start_time;
1346        fprintf(outfile, "Compile time %.2f milliseconds\n",        fprintf(outfile, "Compile time %.4f milliseconds\n",
1347          ((double)time_taken)/(4 * CLOCKS_PER_SEC));          (((double)time_taken * 1000.0) / (double)timeit) /
1348              (double)CLOCKS_PER_SEC);
1349        }        }
1350    
1351      re = pcre_compile((char *)p, options, &error, &erroroffset);      re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1352    
1353      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
1354      if non-interactive. */      if non-interactive. */
# Line 466  while (!done) Line 1361  while (!done)
1361          {          {
1362          for (;;)          for (;;)
1363            {            {
1364            if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)            if (extend_inputline(infile, buffer, NULL) == NULL)
1365              {              {
1366              done = 1;              done = 1;
1367              goto CONTINUE;              goto CONTINUE;
# Line 477  while (!done) Line 1372  while (!done)
1372            }            }
1373          fprintf(outfile, "\n");          fprintf(outfile, "\n");
1374          }          }
1375        continue;        goto CONTINUE;
1376        }        }
1377    
1378      /* Compilation succeeded; print data if required */      /* Compilation succeeded. It is now possible to set the UTF-8 option from
1379        within the regex; check for this so that we know how to process the data
1380        lines. */
1381    
1382        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1383        if ((get_options & PCRE_UTF8) != 0) use_utf8 = 1;
1384    
1385        /* Print information if required. There are now two info-returning
1386        functions. The old one has a limited interface and returns only limited
1387        data. Check that it agrees with the newer one. */
1388    
1389        if (log_store)
1390          fprintf(outfile, "Memory allocation (code space): %d\n",
1391            (int)(gotten_store -
1392                  sizeof(real_pcre) -
1393                  ((real_pcre *)re)->name_count * ((real_pcre *)re)->name_entry_size));
1394    
1395      if (showinfo || do_debug)      /* Extract the size for possible writing before possibly flipping it,
1396        {      and remember the store that was got. */
       int first_char, count;  
   
       if (debug || do_debug) print_internals(re);  
1397    
1398        count = pcre_info(re, &options, &first_char);      true_size = ((real_pcre *)re)->size;
1399        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);  
           }  
         }  
       }  
1400    
1401      /* If /S was present, study the regexp to generate additional info to      /* If /S was present, study the regexp to generate additional info to
1402      help with the matching. */      help with the matching. */
1403    
1404      if (do_study)      if (do_study)
1405        {        {
1406        if (timeit)        if (timeit > 0)
1407          {          {
1408          register int i;          register int i;
1409          clock_t time_taken;          clock_t time_taken;
1410          clock_t start_time = clock();          clock_t start_time = clock();
1411          for (i = 0; i < 4000; i++)          for (i = 0; i < timeit; i++)
1412            extra = pcre_study(re, study_options, &error);            extra = pcre_study(re, study_options, &error);
1413          time_taken = clock() - start_time;          time_taken = clock() - start_time;
1414          if (extra != NULL) free(extra);          if (extra != NULL) free(extra);
1415          fprintf(outfile, "  Study time %.2f milliseconds\n",          fprintf(outfile, "  Study time %.4f milliseconds\n",
1416            ((double)time_taken)/(4 * CLOCKS_PER_SEC));            (((double)time_taken * 1000.0) / (double)timeit) /
1417                (double)CLOCKS_PER_SEC);
1418            }
1419          extra = pcre_study(re, study_options, &error);
1420          if (error != NULL)
1421            fprintf(outfile, "Failed to study: %s\n", error);
1422          else if (extra != NULL)
1423            true_study_size = ((pcre_study_data *)(extra->study_data))->size;
1424          }
1425    
1426        /* If /K was present, we set up for handling MARK data. */
1427    
1428        if (do_mark)
1429          {
1430          if (extra == NULL)
1431            {
1432            extra = (pcre_extra *)malloc(sizeof(pcre_extra));
1433            extra->flags = 0;
1434            }
1435          extra->mark = &markptr;
1436          extra->flags |= PCRE_EXTRA_MARK;
1437          }
1438    
1439        /* If the 'F' option was present, we flip the bytes of all the integer
1440        fields in the regex data block and the study block. This is to make it
1441        possible to test PCRE's handling of byte-flipped patterns, e.g. those
1442        compiled on a different architecture. */
1443    
1444        if (do_flip)
1445          {
1446          real_pcre *rre = (real_pcre *)re;
1447          rre->magic_number =
1448            byteflip(rre->magic_number, sizeof(rre->magic_number));
1449          rre->size = byteflip(rre->size, sizeof(rre->size));
1450          rre->options = byteflip(rre->options, sizeof(rre->options));
1451          rre->flags = (pcre_uint16)byteflip(rre->flags, sizeof(rre->flags));
1452          rre->top_bracket =
1453            (pcre_uint16)byteflip(rre->top_bracket, sizeof(rre->top_bracket));
1454          rre->top_backref =
1455            (pcre_uint16)byteflip(rre->top_backref, sizeof(rre->top_backref));
1456          rre->first_byte =
1457            (pcre_uint16)byteflip(rre->first_byte, sizeof(rre->first_byte));
1458          rre->req_byte =
1459            (pcre_uint16)byteflip(rre->req_byte, sizeof(rre->req_byte));
1460          rre->name_table_offset = (pcre_uint16)byteflip(rre->name_table_offset,
1461            sizeof(rre->name_table_offset));
1462          rre->name_entry_size = (pcre_uint16)byteflip(rre->name_entry_size,
1463            sizeof(rre->name_entry_size));
1464          rre->name_count = (pcre_uint16)byteflip(rre->name_count,
1465            sizeof(rre->name_count));
1466    
1467          if (extra != NULL)
1468            {
1469            pcre_study_data *rsd = (pcre_study_data *)(extra->study_data);
1470            rsd->size = byteflip(rsd->size, sizeof(rsd->size));
1471            rsd->flags = byteflip(rsd->flags, sizeof(rsd->flags));
1472            rsd->minlength = byteflip(rsd->minlength, sizeof(rsd->minlength));
1473            }
1474          }
1475    
1476        /* Extract information from the compiled data if required */
1477    
1478        SHOW_INFO:
1479    
1480        if (do_debug)
1481          {
1482          fprintf(outfile, "------------------------------------------------------------------\n");
1483          pcre_printint(re, outfile, debug_lengths);
1484          }
1485    
1486        /* We already have the options in get_options (see above) */
1487    
1488        if (do_showinfo)
1489          {
1490          unsigned long int all_options;
1491    #if !defined NOINFOCHECK
1492          int old_first_char, old_options, old_count;
1493    #endif
1494          int count, backrefmax, first_char, need_char, okpartial, jchanged,
1495            hascrorlf;
1496          int nameentrysize, namecount;
1497          const uschar *nametable;
1498    
1499          new_info(re, NULL, PCRE_INFO_SIZE, &size);
1500          new_info(re, NULL, PCRE_INFO_CAPTURECOUNT, &count);
1501          new_info(re, NULL, PCRE_INFO_BACKREFMAX, &backrefmax);
1502          new_info(re, NULL, PCRE_INFO_FIRSTBYTE, &first_char);
1503          new_info(re, NULL, PCRE_INFO_LASTLITERAL, &need_char);
1504          new_info(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &nameentrysize);
1505          new_info(re, NULL, PCRE_INFO_NAMECOUNT, &namecount);
1506          new_info(re, NULL, PCRE_INFO_NAMETABLE, (void *)&nametable);
1507          new_info(re, NULL, PCRE_INFO_OKPARTIAL, &okpartial);
1508          new_info(re, NULL, PCRE_INFO_JCHANGED, &jchanged);
1509          new_info(re, NULL, PCRE_INFO_HASCRORLF, &hascrorlf);
1510    
1511    #if !defined NOINFOCHECK
1512          old_count = pcre_info(re, &old_options, &old_first_char);
1513          if (count < 0) fprintf(outfile,
1514            "Error %d from pcre_info()\n", count);
1515          else
1516            {
1517            if (old_count != count) fprintf(outfile,
1518              "Count disagreement: pcre_fullinfo=%d pcre_info=%d\n", count,
1519                old_count);
1520    
1521            if (old_first_char != first_char) fprintf(outfile,
1522              "First char disagreement: pcre_fullinfo=%d pcre_info=%d\n",
1523                first_char, old_first_char);
1524    
1525            if (old_options != (int)get_options) fprintf(outfile,
1526              "Options disagreement: pcre_fullinfo=%ld pcre_info=%d\n",
1527                get_options, old_options);
1528            }
1529    #endif
1530    
1531          if (size != regex_gotten_store) fprintf(outfile,
1532            "Size disagreement: pcre_fullinfo=%d call to malloc for %d\n",
1533            (int)size, (int)regex_gotten_store);
1534    
1535          fprintf(outfile, "Capturing subpattern count = %d\n", count);
1536          if (backrefmax > 0)
1537            fprintf(outfile, "Max back reference = %d\n", backrefmax);
1538    
1539          if (namecount > 0)
1540            {
1541            fprintf(outfile, "Named capturing subpatterns:\n");
1542            while (namecount-- > 0)
1543              {
1544              fprintf(outfile, "  %s %*s%3d\n", nametable + 2,
1545                nameentrysize - 3 - (int)strlen((char *)nametable + 2), "",
1546                GET2(nametable, 0));
1547              nametable += nameentrysize;
1548              }
1549            }
1550    
1551          if (!okpartial) fprintf(outfile, "Partial matching not supported\n");
1552          if (hascrorlf) fprintf(outfile, "Contains explicit CR or LF match\n");
1553    
1554          all_options = ((real_pcre *)re)->options;
1555          if (do_flip) all_options = byteflip(all_options, sizeof(all_options));
1556    
1557          if (get_options == 0) fprintf(outfile, "No options\n");
1558            else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
1559              ((get_options & PCRE_ANCHORED) != 0)? " anchored" : "",
1560              ((get_options & PCRE_CASELESS) != 0)? " caseless" : "",
1561              ((get_options & PCRE_EXTENDED) != 0)? " extended" : "",
1562              ((get_options & PCRE_MULTILINE) != 0)? " multiline" : "",
1563              ((get_options & PCRE_FIRSTLINE) != 0)? " firstline" : "",
1564              ((get_options & PCRE_DOTALL) != 0)? " dotall" : "",
1565              ((get_options & PCRE_BSR_ANYCRLF) != 0)? " bsr_anycrlf" : "",
1566              ((get_options & PCRE_BSR_UNICODE) != 0)? " bsr_unicode" : "",
1567              ((get_options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
1568              ((get_options & PCRE_EXTRA) != 0)? " extra" : "",
1569              ((get_options & PCRE_UNGREEDY) != 0)? " ungreedy" : "",
1570              ((get_options & PCRE_NO_AUTO_CAPTURE) != 0)? " no_auto_capture" : "",
1571              ((get_options & PCRE_UTF8) != 0)? " utf8" : "",
1572              ((get_options & PCRE_NO_UTF8_CHECK) != 0)? " no_utf8_check" : "",
1573              ((get_options & PCRE_DUPNAMES) != 0)? " dupnames" : "");
1574    
1575          if (jchanged) fprintf(outfile, "Duplicate name status changes\n");
1576    
1577          switch (get_options & PCRE_NEWLINE_BITS)
1578            {
1579            case PCRE_NEWLINE_CR:
1580            fprintf(outfile, "Forced newline sequence: CR\n");
1581            break;
1582    
1583            case PCRE_NEWLINE_LF:
1584            fprintf(outfile, "Forced newline sequence: LF\n");
1585            break;
1586    
1587            case PCRE_NEWLINE_CRLF:
1588            fprintf(outfile, "Forced newline sequence: CRLF\n");
1589            break;
1590    
1591            case PCRE_NEWLINE_ANYCRLF:
1592            fprintf(outfile, "Forced newline sequence: ANYCRLF\n");
1593            break;
1594    
1595            case PCRE_NEWLINE_ANY:
1596            fprintf(outfile, "Forced newline sequence: ANY\n");
1597            break;
1598    
1599            default:
1600            break;
1601            }
1602    
1603          if (first_char == -1)
1604            {
1605            fprintf(outfile, "First char at start or follows newline\n");
1606            }
1607          else if (first_char < 0)
1608            {
1609            fprintf(outfile, "No first char\n");
1610            }
1611          else
1612            {
1613            int ch = first_char & 255;
1614            const char *caseless = ((first_char & REQ_CASELESS) == 0)?
1615              "" : " (caseless)";
1616            if (PRINTHEX(ch))
1617              fprintf(outfile, "First char = \'%c\'%s\n", ch, caseless);
1618            else
1619              fprintf(outfile, "First char = %d%s\n", ch, caseless);
1620            }
1621    
1622          if (need_char < 0)
1623            {
1624            fprintf(outfile, "No need char\n");
1625            }
1626          else
1627            {
1628            int ch = need_char & 255;
1629            const char *caseless = ((need_char & REQ_CASELESS) == 0)?
1630              "" : " (caseless)";
1631            if (PRINTHEX(ch))
1632              fprintf(outfile, "Need char = \'%c\'%s\n", ch, caseless);
1633            else
1634              fprintf(outfile, "Need char = %d%s\n", ch, caseless);
1635            }
1636    
1637          /* Don't output study size; at present it is in any case a fixed
1638          value, but it varies, depending on the computer architecture, and
1639          so messes up the test suite. (And with the /F option, it might be
1640          flipped.) */
1641    
1642          if (do_study)
1643            {
1644            if (extra == NULL)
1645              fprintf(outfile, "Study returned NULL\n");
1646            else
1647              {
1648              uschar *start_bits = NULL;
1649              int minlength;
1650    
1651              new_info(re, extra, PCRE_INFO_MINLENGTH, &minlength);
1652              fprintf(outfile, "Subject length lower bound = %d\n", minlength);
1653    
1654              new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits);
1655              if (start_bits == NULL)
1656                fprintf(outfile, "No set of starting bytes\n");
1657              else
1658                {
1659                int i;
1660                int c = 24;
1661                fprintf(outfile, "Starting byte set: ");
1662                for (i = 0; i < 256; i++)
1663                  {
1664                  if ((start_bits[i/8] & (1<<(i&7))) != 0)
1665                    {
1666                    if (c > 75)
1667                      {
1668                      fprintf(outfile, "\n  ");
1669                      c = 2;
1670                      }
1671                    if (PRINTHEX(i) && i != ' ')
1672                      {
1673                      fprintf(outfile, "%c ", i);
1674                      c += 2;
1675                      }
1676                    else
1677                      {
1678                      fprintf(outfile, "\\x%02x ", i);
1679                      c += 5;
1680                      }
1681                    }
1682                  }
1683                fprintf(outfile, "\n");
1684                }
1685              }
1686          }          }
1687          }
1688    
1689        extra = pcre_study(re, study_options, &error);      /* If the '>' option was present, we write out the regex to a file, and
1690        if (error != NULL)      that is all. The first 8 bytes of the file are the regex length and then
1691          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. */  
1692    
1693        else if (showinfo || do_debug)      if (to_file != NULL)
1694          {
1695          FILE *f = fopen((char *)to_file, "wb");
1696          if (f == NULL)
1697            {
1698            fprintf(outfile, "Unable to open %s: %s\n", to_file, strerror(errno));
1699            }
1700          else
1701          {          {
1702          real_pcre_extra *xx = (real_pcre_extra *)extra;          uschar sbuf[8];
1703          if ((xx->options & PCRE_STUDY_MAPPED) == 0)          sbuf[0] = (uschar)((true_size >> 24) & 255);
1704            fprintf(outfile, "No starting character set\n");          sbuf[1] = (uschar)((true_size >> 16) & 255);
1705            sbuf[2] = (uschar)((true_size >>  8) & 255);
1706            sbuf[3] = (uschar)((true_size) & 255);
1707    
1708            sbuf[4] = (uschar)((true_study_size >> 24) & 255);
1709            sbuf[5] = (uschar)((true_study_size >> 16) & 255);
1710            sbuf[6] = (uschar)((true_study_size >>  8) & 255);
1711            sbuf[7] = (uschar)((true_study_size) & 255);
1712    
1713            if (fwrite(sbuf, 1, 8, f) < 8 ||
1714                fwrite(re, 1, true_size, f) < true_size)
1715              {
1716              fprintf(outfile, "Write error on %s: %s\n", to_file, strerror(errno));
1717              }
1718          else          else
1719            {            {
1720            int i;            fprintf(outfile, "Compiled regex written to %s\n", to_file);
1721            int c = 24;            if (extra != NULL)
           fprintf(outfile, "Starting character set: ");  
           for (i = 0; i < 256; i++)  
1722              {              {
1723              if ((xx->start_bits[i/8] & (1<<(i%8))) != 0)              if (fwrite(extra->study_data, 1, true_study_size, f) <
1724                    true_study_size)
1725                {                {
1726                if (c > 75)                fprintf(outfile, "Write error on %s: %s\n", to_file,
1727                  {                  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;  
                 }  
1728                }                }
1729                else fprintf(outfile, "Study data written to %s\n", to_file);
1730    
1731              }              }
           fprintf(outfile, "\n");  
1732            }            }
1733            fclose(f);
1734          }          }
1735    
1736          new_free(re);
1737          if (extra != NULL) new_free(extra);
1738          if (tables != NULL) new_free((void *)tables);
1739          continue;  /* With next regex */
1740        }        }
1741      }      }        /* End of non-POSIX compile */
1742    
1743    /* Read data lines and test them */    /* Read data lines and test them */
1744    
1745    for (;;)    for (;;)
1746      {      {
1747      unsigned char *q;      uschar *q;
1748        uschar *bptr;
1749        int *use_offsets = offsets;
1750        int use_size_offsets = size_offsets;
1751        int callout_data = 0;
1752        int callout_data_set = 0;
1753      int count, c;      int count, c;
1754      int offsets[30];      int copystrings = 0;
1755      int size_offsets = sizeof(offsets)/sizeof(int);      int find_match_limit = default_find_match_limit;
1756        int getstrings = 0;
1757        int getlist = 0;
1758        int gmatched = 0;
1759        int start_offset = 0;
1760        int g_notempty = 0;
1761        int use_dfa = 0;
1762    
1763      options = 0;      options = 0;
1764    
1765      if (infile == stdin) printf("  data> ");      *copynames = 0;
1766      if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)      *getnames = 0;
1767    
1768        copynamesptr = copynames;
1769        getnamesptr = getnames;
1770    
1771        pcre_callout = callout;
1772        first_callout = 1;
1773        callout_extra = 0;
1774        callout_count = 0;
1775        callout_fail_count = 999999;
1776        callout_fail_id = -1;
1777        show_malloc = 0;
1778    
1779        if (extra != NULL) extra->flags &=
1780          ~(PCRE_EXTRA_MATCH_LIMIT|PCRE_EXTRA_MATCH_LIMIT_RECURSION);
1781    
1782        len = 0;
1783        for (;;)
1784        {        {
1785        done = 1;        if (extend_inputline(infile, buffer + len, "data> ") == NULL)
1786        goto CONTINUE;          {
1787            if (len > 0) break;
1788            done = 1;
1789            goto CONTINUE;
1790            }
1791          if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1792          len = (int)strlen((char *)buffer);
1793          if (buffer[len-1] == '\n') break;
1794        }        }
     if (infile != stdin) fprintf(outfile, (char *)buffer);  
1795    
     len = (int)strlen((char *)buffer);  
1796      while (len > 0 && isspace(buffer[len-1])) len--;      while (len > 0 && isspace(buffer[len-1])) len--;
1797      buffer[len] = 0;      buffer[len] = 0;
1798      if (len == 0) break;      if (len == 0) break;
# Line 612  while (!done) Line 1800  while (!done)
1800      p = buffer;      p = buffer;
1801      while (isspace(*p)) p++;      while (isspace(*p)) p++;
1802    
1803      q = dbuffer;      bptr = q = dbuffer;
1804      while ((c = *p++) != 0)      while ((c = *p++) != 0)
1805        {        {
1806        int i = 0;        int i = 0;
1807        int n = 0;        int n = 0;
1808    
1809        if (c == '\\') switch ((c = *p++))        if (c == '\\') switch ((c = *p++))
1810          {          {
1811          case 'a': c =    7; break;          case 'a': c =    7; break;
# Line 633  while (!done) Line 1822  while (!done)
1822          c -= '0';          c -= '0';
1823          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
1824            c = c * 8 + *p++ - '0';            c = c * 8 + *p++ - '0';
1825    
1826    #if !defined NOUTF8
1827            if (use_utf8 && c > 255)
1828              {
1829              unsigned char buff8[8];
1830              int ii, utn;
1831              utn = ord2utf8(c, buff8);
1832              for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1833              c = buff8[ii];   /* Last byte */
1834              }
1835    #endif
1836          break;          break;
1837    
1838          case 'x':          case 'x':
1839    
1840            /* Handle \x{..} specially - new Perl thing for utf8 */
1841    
1842    #if !defined NOUTF8
1843            if (*p == '{')
1844              {
1845              unsigned char *pt = p;
1846              c = 0;
1847              while (isxdigit(*(++pt)))
1848                c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'W');
1849              if (*pt == '}')
1850                {
1851                unsigned char buff8[8];
1852                int ii, utn;
1853                if (use_utf8)
1854                  {
1855                  utn = ord2utf8(c, buff8);
1856                  for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1857                  c = buff8[ii];   /* Last byte */
1858                  }
1859                else
1860                 {
1861                 if (c > 255)
1862                   fprintf(outfile, "** Character \\x{%x} is greater than 255 and "
1863                     "UTF-8 mode is not enabled.\n"
1864                     "** Truncation will probably give the wrong result.\n", c);
1865                 }
1866                p = pt + 1;
1867                break;
1868                }
1869              /* Not correct form; fall through */
1870              }
1871    #endif
1872    
1873            /* Ordinary \x */
1874    
1875          c = 0;          c = 0;
1876          while (i++ < 2 && isxdigit(*p))          while (i++ < 2 && isxdigit(*p))
1877            {            {
# Line 644  while (!done) Line 1880  while (!done)
1880            }            }
1881          break;          break;
1882    
1883          case 0:   /* Allows for an empty line */          case 0:   /* \ followed by EOF allows for an empty line */
1884          p--;          p--;
1885          continue;          continue;
1886    
1887            case '>':
1888            while(isdigit(*p)) start_offset = start_offset * 10 + *p++ - '0';
1889            continue;
1890    
1891          case 'A':  /* Option setting */          case 'A':  /* Option setting */
1892          options |= PCRE_ANCHORED;          options |= PCRE_ANCHORED;
1893          continue;          continue;
# Line 656  while (!done) Line 1896  while (!done)
1896          options |= PCRE_NOTBOL;          options |= PCRE_NOTBOL;
1897          continue;          continue;
1898    
1899          case 'E':          case 'C':
1900          options |= PCRE_DOLLAR_ENDONLY;          if (isdigit(*p))    /* Set copy string */
1901              {
1902              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1903              copystrings |= 1 << n;
1904              }
1905            else if (isalnum(*p))
1906              {
1907              uschar *npp = copynamesptr;
1908              while (isalnum(*p)) *npp++ = *p++;
1909              *npp++ = 0;
1910              *npp = 0;
1911              n = pcre_get_stringnumber(re, (char *)copynamesptr);
1912              if (n < 0)
1913                fprintf(outfile, "no parentheses with name \"%s\"\n", copynamesptr);
1914              copynamesptr = npp;
1915              }
1916            else if (*p == '+')
1917              {
1918              callout_extra = 1;
1919              p++;
1920              }
1921            else if (*p == '-')
1922              {
1923              pcre_callout = NULL;
1924              p++;
1925              }
1926            else if (*p == '!')
1927              {
1928              callout_fail_id = 0;
1929              p++;
1930              while(isdigit(*p))
1931                callout_fail_id = callout_fail_id * 10 + *p++ - '0';
1932              callout_fail_count = 0;
1933              if (*p == '!')
1934                {
1935                p++;
1936                while(isdigit(*p))
1937                  callout_fail_count = callout_fail_count * 10 + *p++ - '0';
1938                }
1939              }
1940            else if (*p == '*')
1941              {
1942              int sign = 1;
1943              callout_data = 0;
1944              if (*(++p) == '-') { sign = -1; p++; }
1945              while(isdigit(*p))
1946                callout_data = callout_data * 10 + *p++ - '0';
1947              callout_data *= sign;
1948              callout_data_set = 1;
1949              }
1950            continue;
1951    
1952    #if !defined NODFA
1953            case 'D':
1954    #if !defined NOPOSIX
1955            if (posix || do_posix)
1956              printf("** Can't use dfa matching in POSIX mode: \\D ignored\n");
1957            else
1958    #endif
1959              use_dfa = 1;
1960            continue;
1961    
1962            case 'F':
1963            options |= PCRE_DFA_SHORTEST;
1964            continue;
1965    #endif
1966    
1967            case 'G':
1968            if (isdigit(*p))
1969              {
1970              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1971              getstrings |= 1 << n;
1972              }
1973            else if (isalnum(*p))
1974              {
1975              uschar *npp = getnamesptr;
1976              while (isalnum(*p)) *npp++ = *p++;
1977              *npp++ = 0;
1978              *npp = 0;
1979              n = pcre_get_stringnumber(re, (char *)getnamesptr);
1980              if (n < 0)
1981                fprintf(outfile, "no parentheses with name \"%s\"\n", getnamesptr);
1982              getnamesptr = npp;
1983              }
1984          continue;          continue;
1985    
1986          case 'I':          case 'L':
1987          options |= PCRE_CASELESS;          getlist = 1;
1988          continue;          continue;
1989    
1990          case 'M':          case 'M':
1991          options |= PCRE_MULTILINE;          find_match_limit = 1;
1992          continue;          continue;
1993    
1994          case 'S':          case 'N':
1995          options |= PCRE_DOTALL;          if ((options & PCRE_NOTEMPTY) != 0)
1996              options = (options & ~PCRE_NOTEMPTY) | PCRE_NOTEMPTY_ATSTART;
1997            else
1998              options |= PCRE_NOTEMPTY;
1999          continue;          continue;
2000    
2001          case 'O':          case 'O':
2002          while(isdigit(*p)) n = n * 10 + *p++ - '0';          while(isdigit(*p)) n = n * 10 + *p++ - '0';
2003          if (n <= (int)(sizeof(offsets)/sizeof(int))) size_offsets = n;          if (n > size_offsets_max)
2004              {
2005              size_offsets_max = n;
2006              free(offsets);
2007              use_offsets = offsets = (int *)malloc(size_offsets_max * sizeof(int));
2008              if (offsets == NULL)
2009                {
2010                printf("** Failed to get %d bytes of memory for offsets vector\n",
2011                  (int)(size_offsets_max * sizeof(int)));
2012                yield = 1;
2013                goto EXIT;
2014                }
2015              }
2016            use_size_offsets = n;
2017            if (n == 0) use_offsets = NULL;   /* Ensures it can't write to it */
2018            continue;
2019    
2020            case 'P':
2021            options |= ((options & PCRE_PARTIAL_SOFT) == 0)?
2022              PCRE_PARTIAL_SOFT : PCRE_PARTIAL_HARD;
2023            continue;
2024    
2025            case 'Q':
2026            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2027            if (extra == NULL)
2028              {
2029              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2030              extra->flags = 0;
2031              }
2032            extra->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
2033            extra->match_limit_recursion = n;
2034            continue;
2035    
2036            case 'q':
2037            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2038            if (extra == NULL)
2039              {
2040              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2041              extra->flags = 0;
2042              }
2043            extra->flags |= PCRE_EXTRA_MATCH_LIMIT;
2044            extra->match_limit = n;
2045            continue;
2046    
2047    #if !defined NODFA
2048            case 'R':
2049            options |= PCRE_DFA_RESTART;
2050            continue;
2051    #endif
2052    
2053            case 'S':
2054            show_malloc = 1;
2055            continue;
2056    
2057            case 'Y':
2058            options |= PCRE_NO_START_OPTIMIZE;
2059          continue;          continue;
2060    
2061          case 'Z':          case 'Z':
2062          options |= PCRE_NOTEOL;          options |= PCRE_NOTEOL;
2063          continue;          continue;
2064    
2065            case '?':
2066            options |= PCRE_NO_UTF8_CHECK;
2067            continue;
2068    
2069            case '<':
2070              {
2071              int x = check_newline(p, outfile);
2072              if (x == 0) goto NEXT_DATA;
2073              options |= x;
2074              while (*p++ != '>');
2075              }
2076            continue;
2077          }          }
2078        *q++ = c;        *q++ = c;
2079        }        }
2080      *q = 0;      *q = 0;
2081      len = q - dbuffer;      len = q - dbuffer;
2082    
2083        /* Move the data to the end of the buffer so that a read over the end of
2084        the buffer will be seen by valgrind, even if it doesn't cause a crash. If
2085        we are using the POSIX interface, we must include the terminating zero. */
2086    
2087    #if !defined NOPOSIX
2088        if (posix || do_posix)
2089          {
2090          memmove(bptr + buffer_size - len - 1, bptr, len + 1);
2091          bptr += buffer_size - len - 1;
2092          }
2093        else
2094    #endif
2095          {
2096          memmove(bptr + buffer_size - len, bptr, len);
2097          bptr += buffer_size - len;
2098          }
2099    
2100        if ((all_use_dfa || use_dfa) && find_match_limit)
2101          {
2102          printf("**Match limit not relevant for DFA matching: ignored\n");
2103          find_match_limit = 0;
2104          }
2105    
2106      /* Handle matching via the POSIX interface, which does not      /* Handle matching via the POSIX interface, which does not
2107      support timing. */      support timing or playing with the match limit or callout data. */
2108    
2109    #if !defined NOPOSIX
2110      if (posix || do_posix)      if (posix || do_posix)
2111        {        {
2112        int rc;        int rc;
2113        int eflags = 0;        int eflags = 0;
2114        regmatch_t pmatch[30];        regmatch_t *pmatch = NULL;
2115          if (use_size_offsets > 0)
2116            pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * use_size_offsets);
2117        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
2118        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
2119          if ((options & PCRE_NOTEMPTY) != 0) eflags |= REG_NOTEMPTY;
2120    
2121        rc = regexec(&preg, (char *)dbuffer, sizeof(pmatch)/sizeof(regmatch_t),        rc = regexec(&preg, (const char *)bptr, use_size_offsets, pmatch, eflags);
         pmatch, eflags);  
2122    
2123        if (rc != 0)        if (rc != 0)
2124          {          {
2125          (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));          (void)regerror(rc, &preg, (char *)buffer, buffer_size);
2126          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
2127          }          }
2128          else if ((((const pcre *)preg.re_pcre)->options & PCRE_NO_AUTO_CAPTURE)
2129                  != 0)
2130            {
2131            fprintf(outfile, "Matched with REG_NOSUB\n");
2132            }
2133        else        else
2134          {          {
2135          size_t i;          size_t i;
2136          for (i = 0; i < sizeof(pmatch)/sizeof(regmatch_t); i++)          for (i = 0; i < (size_t)use_size_offsets; i++)
2137            {            {
2138            if (pmatch[i].rm_so >= 0)            if (pmatch[i].rm_so >= 0)
2139              {              {
2140              fprintf(outfile, "%2d: ", i);              fprintf(outfile, "%2d: ", (int)i);
2141              pchars(dbuffer + pmatch[i].rm_so,              (void)pchars(dbuffer + pmatch[i].rm_so,
2142                pmatch[i].rm_eo - pmatch[i].rm_so);                pmatch[i].rm_eo - pmatch[i].rm_so, outfile);
2143              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2144                if (i == 0 && do_showrest)
2145                  {
2146                  fprintf(outfile, " 0+ ");
2147                  (void)pchars(dbuffer + pmatch[i].rm_eo, len - pmatch[i].rm_eo,
2148                    outfile);
2149                  fprintf(outfile, "\n");
2150                  }
2151              }              }
2152            }            }
2153          }          }
2154          free(pmatch);
2155        }        }
2156    
2157      /* Handle matching via the native interface */      /* Handle matching via the native interface - repeats for /g and /G */
2158    
2159      else      else
2160    #endif  /* !defined NOPOSIX */
2161    
2162        for (;; gmatched++)    /* Loop for /g or /G */
2163        {        {
2164        if (timeit)        markptr = NULL;
2165    
2166          if (timeitm > 0)
2167          {          {
2168          register int i;          register int i;
2169          clock_t time_taken;          clock_t time_taken;
2170          clock_t start_time = clock();          clock_t start_time = clock();
2171          for (i = 0; i < 4000; i++)  
2172            count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,  #if !defined NODFA
2173              size_offsets);          if (all_use_dfa || use_dfa)
2174              {
2175              int workspace[1000];
2176              for (i = 0; i < timeitm; i++)
2177                count = pcre_dfa_exec(re, extra, (char *)bptr, len, start_offset,
2178                  options | g_notempty, use_offsets, use_size_offsets, workspace,
2179                  sizeof(workspace)/sizeof(int));
2180              }
2181            else
2182    #endif
2183    
2184            for (i = 0; i < timeitm; i++)
2185              count = pcre_exec(re, extra, (char *)bptr, len,
2186                start_offset, options | g_notempty, use_offsets, use_size_offsets);
2187    
2188          time_taken = clock() - start_time;          time_taken = clock() - start_time;
2189          fprintf(outfile, "Execute time %.2f milliseconds\n",          fprintf(outfile, "Execute time %.4f milliseconds\n",
2190            ((double)time_taken)/(4 * CLOCKS_PER_SEC));            (((double)time_taken * 1000.0) / (double)timeitm) /
2191                (double)CLOCKS_PER_SEC);
2192            }
2193    
2194          /* If find_match_limit is set, we want to do repeated matches with
2195          varying limits in order to find the minimum value for the match limit and
2196          for the recursion limit. */
2197    
2198          if (find_match_limit)
2199            {
2200            if (extra == NULL)
2201              {
2202              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2203              extra->flags = 0;
2204              }
2205    
2206            (void)check_match_limit(re, extra, bptr, len, start_offset,
2207              options|g_notempty, use_offsets, use_size_offsets,
2208              PCRE_EXTRA_MATCH_LIMIT, &(extra->match_limit),
2209              PCRE_ERROR_MATCHLIMIT, "match()");
2210    
2211            count = check_match_limit(re, extra, bptr, len, start_offset,
2212              options|g_notempty, use_offsets, use_size_offsets,
2213              PCRE_EXTRA_MATCH_LIMIT_RECURSION, &(extra->match_limit_recursion),
2214              PCRE_ERROR_RECURSIONLIMIT, "match() recursion");
2215            }
2216    
2217          /* If callout_data is set, use the interface with additional data */
2218    
2219          else if (callout_data_set)
2220            {
2221            if (extra == NULL)
2222              {
2223              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2224              extra->flags = 0;
2225              }
2226            extra->flags |= PCRE_EXTRA_CALLOUT_DATA;
2227            extra->callout_data = &callout_data;
2228            count = pcre_exec(re, extra, (char *)bptr, len, start_offset,
2229              options | g_notempty, use_offsets, use_size_offsets);
2230            extra->flags &= ~PCRE_EXTRA_CALLOUT_DATA;
2231          }          }
2232    
2233        count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,        /* The normal case is just to do the match once, with the default
2234          size_offsets);        value of match_limit. */
2235    
2236    #if !defined NODFA
2237          else if (all_use_dfa || use_dfa)
2238            {
2239            int workspace[1000];
2240            count = pcre_dfa_exec(re, extra, (char *)bptr, len, start_offset,
2241              options | g_notempty, use_offsets, use_size_offsets, workspace,
2242              sizeof(workspace)/sizeof(int));
2243            if (count == 0)
2244              {
2245              fprintf(outfile, "Matched, but too many subsidiary matches\n");
2246              count = use_size_offsets/2;
2247              }
2248            }
2249    #endif
2250    
2251        if (count == 0)        else
2252          {          {
2253          fprintf(outfile, "Matched, but too many substrings\n");          count = pcre_exec(re, extra, (char *)bptr, len,
2254          count = size_offsets/2;            start_offset, options | g_notempty, use_offsets, use_size_offsets);
2255            if (count == 0)
2256              {
2257              fprintf(outfile, "Matched, but too many substrings\n");
2258              count = use_size_offsets/3;
2259              }
2260          }          }
2261    
2262          /* Matched */
2263    
2264        if (count >= 0)        if (count >= 0)
2265          {          {
2266          int i;          int i, maxcount;
2267          count *= 2;  
2268          for (i = 0; i < count; i += 2)  #if !defined NODFA
2269            if (all_use_dfa || use_dfa) maxcount = use_size_offsets/2; else
2270    #endif
2271              maxcount = use_size_offsets/3;
2272    
2273            /* This is a check against a lunatic return value. */
2274    
2275            if (count > maxcount)
2276              {
2277              fprintf(outfile,
2278                "** PCRE error: returned count %d is too big for offset size %d\n",
2279                count, use_size_offsets);
2280              count = use_size_offsets/3;
2281              if (do_g || do_G)
2282                {
2283                fprintf(outfile, "** /%c loop abandoned\n", do_g? 'g' : 'G');
2284                do_g = do_G = FALSE;        /* Break g/G loop */
2285                }
2286              }
2287    
2288            for (i = 0; i < count * 2; i += 2)
2289            {            {
2290            if (offsets[i] < 0)            if (use_offsets[i] < 0)
2291              fprintf(outfile, "%2d: <unset>\n", i/2);              fprintf(outfile, "%2d: <unset>\n", i/2);
2292            else            else
2293              {              {
2294              fprintf(outfile, "%2d: ", i/2);              fprintf(outfile, "%2d: ", i/2);
2295              pchars(dbuffer + offsets[i], offsets[i+1] - offsets[i]);              (void)pchars(bptr + use_offsets[i],
2296                  use_offsets[i+1] - use_offsets[i], outfile);
2297              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2298                if (i == 0)
2299                  {
2300                  if (do_showrest)
2301                    {
2302                    fprintf(outfile, " 0+ ");
2303                    (void)pchars(bptr + use_offsets[i+1], len - use_offsets[i+1],
2304                      outfile);
2305                    fprintf(outfile, "\n");
2306                    }
2307                  }
2308                }
2309              }
2310    
2311            if (markptr != NULL) fprintf(outfile, "MK: %s\n", markptr);
2312    
2313            for (i = 0; i < 32; i++)
2314              {
2315              if ((copystrings & (1 << i)) != 0)
2316                {
2317                char copybuffer[256];
2318                int rc = pcre_copy_substring((char *)bptr, use_offsets, count,
2319                  i, copybuffer, sizeof(copybuffer));
2320                if (rc < 0)
2321                  fprintf(outfile, "copy substring %d failed %d\n", i, rc);
2322                else
2323                  fprintf(outfile, "%2dC %s (%d)\n", i, copybuffer, rc);
2324                }
2325              }
2326    
2327            for (copynamesptr = copynames;
2328                 *copynamesptr != 0;
2329                 copynamesptr += (int)strlen((char*)copynamesptr) + 1)
2330              {
2331              char copybuffer[256];
2332              int rc = pcre_copy_named_substring(re, (char *)bptr, use_offsets,
2333                count, (char *)copynamesptr, copybuffer, sizeof(copybuffer));
2334              if (rc < 0)
2335                fprintf(outfile, "copy substring %s failed %d\n", copynamesptr, rc);
2336              else
2337                fprintf(outfile, "  C %s (%d) %s\n", copybuffer, rc, copynamesptr);
2338              }
2339    
2340            for (i = 0; i < 32; i++)
2341              {
2342              if ((getstrings & (1 << i)) != 0)
2343                {
2344                const char *substring;
2345                int rc = pcre_get_substring((char *)bptr, use_offsets, count,
2346                  i, &substring);
2347                if (rc < 0)
2348                  fprintf(outfile, "get substring %d failed %d\n", i, rc);
2349                else
2350                  {
2351                  fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
2352                  pcre_free_substring(substring);
2353                  }
2354                }
2355              }
2356    
2357            for (getnamesptr = getnames;
2358                 *getnamesptr != 0;
2359                 getnamesptr += (int)strlen((char*)getnamesptr) + 1)
2360              {
2361              const char *substring;
2362              int rc = pcre_get_named_substring(re, (char *)bptr, use_offsets,
2363                count, (char *)getnamesptr, &substring);
2364              if (rc < 0)
2365                fprintf(outfile, "copy substring %s failed %d\n", getnamesptr, rc);
2366              else
2367                {
2368                fprintf(outfile, "  G %s (%d) %s\n", substring, rc, getnamesptr);
2369                pcre_free_substring(substring);
2370                }
2371              }
2372    
2373            if (getlist)
2374              {
2375              const char **stringlist;
2376              int rc = pcre_get_substring_list((char *)bptr, use_offsets, count,
2377                &stringlist);
2378              if (rc < 0)
2379                fprintf(outfile, "get substring list failed %d\n", rc);
2380              else
2381                {
2382                for (i = 0; i < count; i++)
2383                  fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
2384                if (stringlist[i] != NULL)
2385                  fprintf(outfile, "string list not terminated by NULL\n");
2386                /* free((void *)stringlist); */
2387                pcre_free_substring_list(stringlist);
2388              }              }
2389            }            }
2390          }          }
2391    
2392          /* There was a partial match */
2393    
2394          else if (count == PCRE_ERROR_PARTIAL)
2395            {
2396            if (markptr == NULL) fprintf(outfile, "Partial match");
2397              else fprintf(outfile, "Partial match, mark=%s", markptr);
2398            if (use_size_offsets > 1)
2399              {
2400              fprintf(outfile, ": ");
2401              pchars(bptr + use_offsets[0], use_offsets[1] - use_offsets[0],
2402                outfile);
2403              }
2404            fprintf(outfile, "\n");
2405            break;  /* Out of the /g loop */
2406            }
2407    
2408          /* Failed to match. If this is a /g or /G loop and we previously set
2409          g_notempty after a null match, this is not necessarily the end. We want
2410          to advance the start offset, and continue. We won't be at the end of the
2411          string - that was checked before setting g_notempty.
2412    
2413          Complication arises in the case when the newline option is "any" or
2414          "anycrlf". If the previous match was at the end of a line terminated by
2415          CRLF, an advance of one character just passes the \r, whereas we should
2416          prefer the longer newline sequence, as does the code in pcre_exec().
2417          Fudge the offset value to achieve this.
2418    
2419          Otherwise, in the case of UTF-8 matching, the advance must be one
2420          character, not one byte. */
2421    
2422        else        else
2423          {          {
2424          if (count == -1) fprintf(outfile, "No match\n");          if (g_notempty != 0)
2425              {
2426              int onechar = 1;
2427              unsigned int obits = ((real_pcre *)re)->options;
2428              use_offsets[0] = start_offset;
2429              if ((obits & PCRE_NEWLINE_BITS) == 0)
2430                {
2431                int d;
2432                (void)pcre_config(PCRE_CONFIG_NEWLINE, &d);
2433                /* Note that these values are always the ASCII ones, even in
2434                EBCDIC environments. CR = 13, NL = 10. */
2435                obits = (d == 13)? PCRE_NEWLINE_CR :
2436                        (d == 10)? PCRE_NEWLINE_LF :
2437                        (d == (13<<8 | 10))? PCRE_NEWLINE_CRLF :
2438                        (d == -2)? PCRE_NEWLINE_ANYCRLF :
2439                        (d == -1)? PCRE_NEWLINE_ANY : 0;
2440                }
2441              if (((obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANY ||
2442                   (obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANYCRLF)
2443                  &&
2444                  start_offset < len - 1 &&
2445                  bptr[start_offset] == '\r' &&
2446                  bptr[start_offset+1] == '\n')
2447                onechar++;
2448              else if (use_utf8)
2449                {
2450                while (start_offset + onechar < len)
2451                  {
2452                  int tb = bptr[start_offset+onechar];
2453                  if (tb <= 127) break;
2454                  tb &= 0xc0;
2455                  if (tb != 0 && tb != 0xc0) onechar++;
2456                  }
2457                }
2458              use_offsets[1] = start_offset + onechar;
2459              }
2460            else
2461              {
2462              if (count == PCRE_ERROR_NOMATCH)
2463                {
2464                if (gmatched == 0)
2465                  {
2466                  if (markptr == NULL) fprintf(outfile, "No match\n");
2467                    else fprintf(outfile, "No match, mark = %s\n", markptr);
2468                  }
2469                }
2470            else fprintf(outfile, "Error %d\n", count);            else fprintf(outfile, "Error %d\n", count);
2471              break;  /* Out of the /g loop */
2472              }
2473          }          }
2474        }  
2475      }        /* If not /g or /G we are done */
2476    
2477          if (!do_g && !do_G) break;
2478    
2479          /* If we have matched an empty string, first check to see if we are at
2480          the end of the subject. If so, the /g loop is over. Otherwise, mimic what
2481          Perl's /g options does. This turns out to be rather cunning. First we set
2482          PCRE_NOTEMPTY_ATSTART and PCRE_ANCHORED and try the match again at the
2483          same point. If this fails (picked up above) we advance to the next
2484          character. */
2485    
2486          g_notempty = 0;
2487    
2488          if (use_offsets[0] == use_offsets[1])
2489            {
2490            if (use_offsets[0] == len) break;
2491            g_notempty = PCRE_NOTEMPTY_ATSTART | PCRE_ANCHORED;
2492            }
2493    
2494          /* For /g, update the start offset, leaving the rest alone */
2495    
2496          if (do_g) start_offset = use_offsets[1];
2497    
2498          /* For /G, update the pointer and length */
2499    
2500          else
2501            {
2502            bptr += use_offsets[1];
2503            len -= use_offsets[1];
2504            }
2505          }  /* End of loop for /g and /G */
2506    
2507        NEXT_DATA: continue;
2508        }    /* End of loop for data lines */
2509    
2510    CONTINUE:    CONTINUE:
2511    
2512    #if !defined NOPOSIX
2513    if (posix || do_posix) regfree(&preg);    if (posix || do_posix) regfree(&preg);
2514    if (re != NULL) free(re);  #endif
2515    if (extra != NULL) free(extra);  
2516      if (re != NULL) new_free(re);
2517      if (extra != NULL) new_free(extra);
2518      if (tables != NULL)
2519        {
2520        new_free((void *)tables);
2521        setlocale(LC_CTYPE, "C");
2522        locale_set = 0;
2523        }
2524    }    }
2525    
2526  fprintf(outfile, "\n");  if (infile == stdin) fprintf(outfile, "\n");
2527  return 0;  
2528    EXIT:
2529    
2530    if (infile != NULL && infile != stdin) fclose(infile);
2531    if (outfile != NULL && outfile != stdout) fclose(outfile);
2532    
2533    free(buffer);
2534    free(dbuffer);
2535    free(pbuffer);
2536    free(offsets);
2537    
2538    return yield;
2539  }  }
2540    
2541  /* End */  /* End of pcretest.c */

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