/[pcre]/code/branches/pcre16/pcretest.c
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revision 9 by nigel, Sat Feb 24 21:38:13 2007 UTC revision 455 by ph10, Sat Sep 26 19:12:32 2009 UTC
# Line 2  Line 2 
2  *             PCRE testing program               *  *             PCRE testing program               *
3  *************************************************/  *************************************************/
4    
5    /* This program was hacked up as a tester for PCRE. I really should have
6    written it more tidily in the first place. Will I ever learn? It has grown and
7    been extended and consequently is now rather, er, *very* untidy in places.
8    
9    -----------------------------------------------------------------------------
10    Redistribution and use in source and binary forms, with or without
11    modification, are permitted provided that the following conditions are met:
12    
13        * Redistributions of source code must retain the above copyright notice,
14          this list of conditions and the following disclaimer.
15    
16        * Redistributions in binary form must reproduce the above copyright
17          notice, this list of conditions and the following disclaimer in the
18          documentation and/or other materials provided with the distribution.
19    
20        * Neither the name of the University of Cambridge nor the names of its
21          contributors may be used to endorse or promote products derived from
22          this software without specific prior written permission.
23    
24    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34    POSSIBILITY OF SUCH DAMAGE.
35    -----------------------------------------------------------------------------
36    */
37    
38    
39    #ifdef HAVE_CONFIG_H
40    #include "config.h"
41    #endif
42    
43  #include <ctype.h>  #include <ctype.h>
44  #include <stdio.h>  #include <stdio.h>
45  #include <string.h>  #include <string.h>
46  #include <stdlib.h>  #include <stdlib.h>
47  #include <time.h>  #include <time.h>
48    #include <locale.h>
49    #include <errno.h>
50    
51  /* Use the internal info for displaying the results of pcre_study(). */  #ifdef SUPPORT_LIBREADLINE
52    #ifdef HAVE_UNISTD_H
53    #include <unistd.h>
54    #endif
55    #include <readline/readline.h>
56    #include <readline/history.h>
57    #endif
58    
59  #include "internal.h"  
60    /* A number of things vary for Windows builds. Originally, pcretest opened its
61    input and output without "b"; then I was told that "b" was needed in some
62    environments, so it was added for release 5.0 to both the input and output. (It
63    makes no difference on Unix-like systems.) Later I was told that it is wrong
64    for the input on Windows. I've now abstracted the modes into two macros that
65    are set here, to make it easier to fiddle with them, and removed "b" from the
66    input mode under Windows. */
67    
68    #if defined(_WIN32) || defined(WIN32)
69    #include <io.h>                /* For _setmode() */
70    #include <fcntl.h>             /* For _O_BINARY */
71    #define INPUT_MODE   "r"
72    #define OUTPUT_MODE  "wb"
73    
74    #ifndef isatty
75    #define isatty _isatty         /* This is what Windows calls them, I'm told, */
76    #endif                         /* though in some environments they seem to   */
77                                   /* be already defined, hence the #ifndefs.    */
78    #ifndef fileno
79    #define fileno _fileno
80    #endif
81    
82    #else
83    #include <sys/time.h>          /* These two includes are needed */
84    #include <sys/resource.h>      /* for setrlimit(). */
85    #define INPUT_MODE   "rb"
86    #define OUTPUT_MODE  "wb"
87    #endif
88    
89    
90    /* We have to include pcre_internal.h because we need the internal info for
91    displaying the results of pcre_study() and we also need to know about the
92    internal macros, structures, and other internal data values; pcretest has
93    "inside information" compared to a program that strictly follows the PCRE API.
94    
95    Although pcre_internal.h does itself include pcre.h, we explicitly include it
96    here before pcre_internal.h so that the PCRE_EXP_xxx macros get set
97    appropriately for an application, not for building PCRE. */
98    
99    #include "pcre.h"
100    #include "pcre_internal.h"
101    
102    /* We need access to some of the data tables that PCRE uses. So as not to have
103    to keep two copies, we include the source file here, changing the names of the
104    external symbols to prevent clashes. */
105    
106    #define _pcre_ucp_gentype      ucp_gentype
107    #define _pcre_utf8_table1      utf8_table1
108    #define _pcre_utf8_table1_size utf8_table1_size
109    #define _pcre_utf8_table2      utf8_table2
110    #define _pcre_utf8_table3      utf8_table3
111    #define _pcre_utf8_table4      utf8_table4
112    #define _pcre_utt              utt
113    #define _pcre_utt_size         utt_size
114    #define _pcre_utt_names        utt_names
115    #define _pcre_OP_lengths       OP_lengths
116    
117    #include "pcre_tables.c"
118    
119    /* We also need the pcre_printint() function for printing out compiled
120    patterns. This function is in a separate file so that it can be included in
121    pcre_compile.c when that module is compiled with debugging enabled.
122    
123    The definition of the macro PRINTABLE, which determines whether to print an
124    output character as-is or as a hex value when showing compiled patterns, is
125    contained in this file. We uses it here also, in cases when the locale has not
126    been explicitly changed, so as to get consistent output from systems that
127    differ in their output from isprint() even in the "C" locale. */
128    
129    #include "pcre_printint.src"
130    
131    #define PRINTHEX(c) (locale_set? isprint(c) : PRINTABLE(c))
132    
133    
134    /* It is possible to compile this test program without including support for
135    testing the POSIX interface, though this is not available via the standard
136    Makefile. */
137    
138    #if !defined NOPOSIX
139  #include "pcreposix.h"  #include "pcreposix.h"
140    #endif
141    
142    /* It is also possible, for the benefit of the version currently imported into
143    Exim, to build pcretest without support for UTF8 (define NOUTF8), without the
144    interface to the DFA matcher (NODFA), and without the doublecheck of the old
145    "info" function (define NOINFOCHECK). In fact, we automatically cut out the
146    UTF8 support if PCRE is built without it. */
147    
148    #ifndef SUPPORT_UTF8
149    #ifndef NOUTF8
150    #define NOUTF8
151    #endif
152    #endif
153    
154    
155    /* Other parameters */
156    
157  #ifndef CLOCKS_PER_SEC  #ifndef CLOCKS_PER_SEC
158  #ifdef CLK_TCK  #ifdef CLK_TCK
# Line 21  Line 162 
162  #endif  #endif
163  #endif  #endif
164    
165    /* This is the default loop count for timing. */
166    
167    #define LOOPREPEAT 500000
168    
169    /* Static variables */
170    
171  static FILE *outfile;  static FILE *outfile;
172  static int log_store = 0;  static int log_store = 0;
173    static int callout_count;
174    static int callout_extra;
175    static int callout_fail_count;
176    static int callout_fail_id;
177    static int debug_lengths;
178    static int first_callout;
179    static int locale_set = 0;
180    static int show_malloc;
181    static int use_utf8;
182    static size_t gotten_store;
183    
184    /* The buffers grow automatically if very long input lines are encountered. */
185    
186    static int buffer_size = 50000;
187    static uschar *buffer = NULL;
188    static uschar *dbuffer = NULL;
189    static uschar *pbuffer = NULL;
190    
191    
192    
193  /* Debugging function to print the internal form of the regex. This is the same  /*************************************************
194  code as contained in pcre.c under the DEBUG macro. */  *        Read or extend an input line            *
195    *************************************************/
196    
197  static const char *OP_names[] = {  /* Input lines are read into buffer, but both patterns and data lines can be
198    "End", "\\A", "\\B", "\\b", "\\D", "\\d",  continued over multiple input lines. In addition, if the buffer fills up, we
199    "\\S", "\\s", "\\W", "\\w", "Cut", "\\Z", "^", "$", "Any", "chars",  want to automatically expand it so as to be able to handle extremely large
200    "not",  lines that are needed for certain stress tests. When the input buffer is
201    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  expanded, the other two buffers must also be expanded likewise, and the
202    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  contents of pbuffer, which are a copy of the input for callouts, must be
203    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",  preserved (for when expansion happens for a data line). This is not the most
204    "*", "*?", "+", "+?", "?", "??", "{", "{",  optimal way of handling this, but hey, this is just a test program!
205    "class", "Ref",  
206    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not", "Once",  Arguments:
207    "Brazero", "Braminzero", "Bra"    f            the file to read
208  };    start        where in buffer to start (this *must* be within buffer)
209      prompt       for stdin or readline()
210    
211  static void print_internals(pcre *re)  Returns:       pointer to the start of new data
212  {                 could be a copy of start, or could be moved
213  unsigned char *code = ((real_pcre *)re)->code;                 NULL if no data read and EOF reached
214    */
 printf("------------------------------------------------------------------\n");  
   
 for(;;)  
   {  
   int c;  
   int charlength;  
   
   printf("%3d ", code - ((real_pcre *)re)->code);  
   
   if (*code >= OP_BRA)  
     {  
     printf("%3d Bra %d", (code[1] << 8) + code[2], *code - OP_BRA);  
     code += 2;  
     }  
   
   else switch(*code)  
     {  
     case OP_END:  
     printf("    %s\n", OP_names[*code]);  
     printf("------------------------------------------------------------------\n");  
     return;  
   
     case OP_CHARS:  
     charlength = *(++code);  
     printf("%3d ", charlength);  
     while (charlength-- > 0)  
       if (isprint(c = *(++code))) printf("%c", c); else printf("\\x%02x", c);  
     break;  
   
     case OP_KETRMAX:  
     case OP_KETRMIN:  
     case OP_ALT:  
     case OP_KET:  
     case OP_ASSERT:  
     case OP_ASSERT_NOT:  
     case OP_ONCE:  
     printf("%3d %s", (code[1] << 8) + code[2], OP_names[*code]);  
     code += 2;  
     break;  
   
     case OP_STAR:  
     case OP_MINSTAR:  
     case OP_PLUS:  
     case OP_MINPLUS:  
     case OP_QUERY:  
     case OP_MINQUERY:  
     case OP_TYPESTAR:  
     case OP_TYPEMINSTAR:  
     case OP_TYPEPLUS:  
     case OP_TYPEMINPLUS:  
     case OP_TYPEQUERY:  
     case OP_TYPEMINQUERY:  
     if (*code >= OP_TYPESTAR)  
       printf("    %s", OP_names[code[1]]);  
     else if (isprint(c = code[1])) printf("    %c", c);  
       else printf("    \\x%02x", c);  
     printf("%s", OP_names[*code++]);  
     break;  
   
     case OP_EXACT:  
     case OP_UPTO:  
     case OP_MINUPTO:  
     if (isprint(c = code[3])) printf("    %c{", c);  
       else printf("    \\x%02x{", c);  
     if (*code != OP_EXACT) printf(",");  
     printf("%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_MINUPTO) printf("?");  
     code += 3;  
     break;  
   
     case OP_TYPEEXACT:  
     case OP_TYPEUPTO:  
     case OP_TYPEMINUPTO:  
     printf("    %s{", OP_names[code[3]]);  
     if (*code != OP_TYPEEXACT) printf(",");  
     printf("%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_TYPEMINUPTO) printf("?");  
     code += 3;  
     break;  
   
     case OP_NOT:  
     if (isprint(c = *(++code))) printf("    [^%c]", c);  
       else printf("    [^\\x%02x]", c);  
     break;  
   
     case OP_NOTSTAR:  
     case OP_NOTMINSTAR:  
     case OP_NOTPLUS:  
     case OP_NOTMINPLUS:  
     case OP_NOTQUERY:  
     case OP_NOTMINQUERY:  
     if (isprint(c = code[1])) printf("    [^%c]", c);  
       else printf("    [^\\x%02x]", c);  
     printf("%s", OP_names[*code++]);  
     break;  
   
     case OP_NOTEXACT:  
     case OP_NOTUPTO:  
     case OP_NOTMINUPTO:  
     if (isprint(c = code[3])) printf("    [^%c]{", c);  
       else printf("    [^\\x%02x]{", c);  
     if (*code != OP_NOTEXACT) printf(",");  
     printf("%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_NOTMINUPTO) printf("?");  
     code += 3;  
     break;  
   
     case OP_REF:  
     printf("    \\%d", *(++code));  
     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;  
215    
216          case OP_CRRANGE:  static uschar *
217          case OP_CRMINRANGE:  extend_inputline(FILE *f, uschar *start, const char *prompt)
218          min = (code[1] << 8) + code[2];  {
219          max = (code[3] << 8) + code[4];  uschar *here = start;
         if (max == 0) printf("{%d,}", min);  
         else printf("{%d,%d}", min, max);  
         if (*code == OP_CRMINRANGE) printf("?");  
         code += 4;  
         break;  
220    
221          default:  for (;;)
222          code--;    {
223          }    int rlen = buffer_size - (here - buffer);
224    
225      if (rlen > 1000)
226        {
227        int dlen;
228    
229        /* If libreadline support is required, use readline() to read a line if the
230        input is a terminal. Note that readline() removes the trailing newline, so
231        we must put it back again, to be compatible with fgets(). */
232    
233    #ifdef SUPPORT_LIBREADLINE
234        if (isatty(fileno(f)))
235          {
236          size_t len;
237          char *s = readline(prompt);
238          if (s == NULL) return (here == start)? NULL : start;
239          len = strlen(s);
240          if (len > 0) add_history(s);
241          if (len > rlen - 1) len = rlen - 1;
242          memcpy(here, s, len);
243          here[len] = '\n';
244          here[len+1] = 0;
245          free(s);
246        }        }
247      break;      else
248    #endif
249    
250        /* Read the next line by normal means, prompting if the file is stdin. */
251    
252      /* Anything else is just a one-node item */        {
253          if (f == stdin) printf(prompt);
254          if (fgets((char *)here, rlen,  f) == NULL)
255            return (here == start)? NULL : start;
256          }
257    
258      default:      dlen = (int)strlen((char *)here);
259      printf("    %s", OP_names[*code]);      if (dlen > 0 && here[dlen - 1] == '\n') return start;
260      break;      here += dlen;
261      }      }
262    
263    code++;    else
264    printf("\n");      {
265        int new_buffer_size = 2*buffer_size;
266        uschar *new_buffer = (unsigned char *)malloc(new_buffer_size);
267        uschar *new_dbuffer = (unsigned char *)malloc(new_buffer_size);
268        uschar *new_pbuffer = (unsigned char *)malloc(new_buffer_size);
269    
270        if (new_buffer == NULL || new_dbuffer == NULL || new_pbuffer == NULL)
271          {
272          fprintf(stderr, "pcretest: malloc(%d) failed\n", new_buffer_size);
273          exit(1);
274          }
275    
276        memcpy(new_buffer, buffer, buffer_size);
277        memcpy(new_pbuffer, pbuffer, buffer_size);
278    
279        buffer_size = new_buffer_size;
280    
281        start = new_buffer + (start - buffer);
282        here = new_buffer + (here - buffer);
283    
284        free(buffer);
285        free(dbuffer);
286        free(pbuffer);
287    
288        buffer = new_buffer;
289        dbuffer = new_dbuffer;
290        pbuffer = new_pbuffer;
291        }
292    }    }
293    
294    return NULL;  /* Control never gets here */
295  }  }
296    
297    
298    
 /* Character string printing function. */  
299    
300  static void pchars(unsigned char *p, int length)  
301    
302    
303    /*************************************************
304    *          Read number from string               *
305    *************************************************/
306    
307    /* We don't use strtoul() because SunOS4 doesn't have it. Rather than mess
308    around with conditional compilation, just do the job by hand. It is only used
309    for unpicking arguments, so just keep it simple.
310    
311    Arguments:
312      str           string to be converted
313      endptr        where to put the end pointer
314    
315    Returns:        the unsigned long
316    */
317    
318    static int
319    get_value(unsigned char *str, unsigned char **endptr)
320    {
321    int result = 0;
322    while(*str != 0 && isspace(*str)) str++;
323    while (isdigit(*str)) result = result * 10 + (int)(*str++ - '0');
324    *endptr = str;
325    return(result);
326    }
327    
328    
329    
330    
331    /*************************************************
332    *            Convert UTF-8 string to value       *
333    *************************************************/
334    
335    /* This function takes one or more bytes that represents a UTF-8 character,
336    and returns the value of the character.
337    
338    Argument:
339      utf8bytes   a pointer to the byte vector
340      vptr        a pointer to an int to receive the value
341    
342    Returns:      >  0 => the number of bytes consumed
343                  -6 to 0 => malformed UTF-8 character at offset = (-return)
344    */
345    
346    #if !defined NOUTF8
347    
348    static int
349    utf82ord(unsigned char *utf8bytes, int *vptr)
350    {
351    int c = *utf8bytes++;
352    int d = c;
353    int i, j, s;
354    
355    for (i = -1; i < 6; i++)               /* i is number of additional bytes */
356      {
357      if ((d & 0x80) == 0) break;
358      d <<= 1;
359      }
360    
361    if (i == -1) { *vptr = c; return 1; }  /* ascii character */
362    if (i == 0 || i == 6) return 0;        /* invalid UTF-8 */
363    
364    /* i now has a value in the range 1-5 */
365    
366    s = 6*i;
367    d = (c & utf8_table3[i]) << s;
368    
369    for (j = 0; j < i; j++)
370      {
371      c = *utf8bytes++;
372      if ((c & 0xc0) != 0x80) return -(j+1);
373      s -= 6;
374      d |= (c & 0x3f) << s;
375      }
376    
377    /* Check that encoding was the correct unique one */
378    
379    for (j = 0; j < utf8_table1_size; j++)
380      if (d <= utf8_table1[j]) break;
381    if (j != i) return -(i+1);
382    
383    /* Valid value */
384    
385    *vptr = d;
386    return i+1;
387    }
388    
389    #endif
390    
391    
392    
393    /*************************************************
394    *       Convert character value to UTF-8         *
395    *************************************************/
396    
397    /* This function takes an integer value in the range 0 - 0x7fffffff
398    and encodes it as a UTF-8 character in 0 to 6 bytes.
399    
400    Arguments:
401      cvalue     the character value
402      utf8bytes  pointer to buffer for result - at least 6 bytes long
403    
404    Returns:     number of characters placed in the buffer
405    */
406    
407    #if !defined NOUTF8
408    
409    static int
410    ord2utf8(int cvalue, uschar *utf8bytes)
411    {
412    register int i, j;
413    for (i = 0; i < utf8_table1_size; i++)
414      if (cvalue <= utf8_table1[i]) break;
415    utf8bytes += i;
416    for (j = i; j > 0; j--)
417     {
418     *utf8bytes-- = 0x80 | (cvalue & 0x3f);
419     cvalue >>= 6;
420     }
421    *utf8bytes = utf8_table2[i] | cvalue;
422    return i + 1;
423    }
424    
425    #endif
426    
427    
428    
429    /*************************************************
430    *             Print character string             *
431    *************************************************/
432    
433    /* Character string printing function. Must handle UTF-8 strings in utf8
434    mode. Yields number of characters printed. If handed a NULL file, just counts
435    chars without printing. */
436    
437    static int pchars(unsigned char *p, int length, FILE *f)
438  {  {
439  int c;  int c = 0;
440    int yield = 0;
441    
442  while (length-- > 0)  while (length-- > 0)
443    if (isprint(c = *(p++))) fprintf(outfile, "%c", c);    {
444      else fprintf(outfile, "\\x%02x", c);  #if !defined NOUTF8
445      if (use_utf8)
446        {
447        int rc = utf82ord(p, &c);
448    
449        if (rc > 0 && rc <= length + 1)   /* Mustn't run over the end */
450          {
451          length -= rc - 1;
452          p += rc;
453          if (PRINTHEX(c))
454            {
455            if (f != NULL) fprintf(f, "%c", c);
456            yield++;
457            }
458          else
459            {
460            int n = 4;
461            if (f != NULL) fprintf(f, "\\x{%02x}", c);
462            yield += (n <= 0x000000ff)? 2 :
463                     (n <= 0x00000fff)? 3 :
464                     (n <= 0x0000ffff)? 4 :
465                     (n <= 0x000fffff)? 5 : 6;
466            }
467          continue;
468          }
469        }
470    #endif
471    
472       /* Not UTF-8, or malformed UTF-8  */
473    
474      c = *p++;
475      if (PRINTHEX(c))
476        {
477        if (f != NULL) fprintf(f, "%c", c);
478        yield++;
479        }
480      else
481        {
482        if (f != NULL) fprintf(f, "\\x%02x", c);
483        yield += 4;
484        }
485      }
486    
487    return yield;
488    }
489    
490    
491    
492    /*************************************************
493    *              Callout function                  *
494    *************************************************/
495    
496    /* Called from PCRE as a result of the (?C) item. We print out where we are in
497    the match. Yield zero unless more callouts than the fail count, or the callout
498    data is not zero. */
499    
500    static int callout(pcre_callout_block *cb)
501    {
502    FILE *f = (first_callout | callout_extra)? outfile : NULL;
503    int i, pre_start, post_start, subject_length;
504    
505    if (callout_extra)
506      {
507      fprintf(f, "Callout %d: last capture = %d\n",
508        cb->callout_number, cb->capture_last);
509    
510      for (i = 0; i < cb->capture_top * 2; i += 2)
511        {
512        if (cb->offset_vector[i] < 0)
513          fprintf(f, "%2d: <unset>\n", i/2);
514        else
515          {
516          fprintf(f, "%2d: ", i/2);
517          (void)pchars((unsigned char *)cb->subject + cb->offset_vector[i],
518            cb->offset_vector[i+1] - cb->offset_vector[i], f);
519          fprintf(f, "\n");
520          }
521        }
522      }
523    
524    /* Re-print the subject in canonical form, the first time or if giving full
525    datails. On subsequent calls in the same match, we use pchars just to find the
526    printed lengths of the substrings. */
527    
528    if (f != NULL) fprintf(f, "--->");
529    
530    pre_start = pchars((unsigned char *)cb->subject, cb->start_match, f);
531    post_start = pchars((unsigned char *)(cb->subject + cb->start_match),
532      cb->current_position - cb->start_match, f);
533    
534    subject_length = pchars((unsigned char *)cb->subject, cb->subject_length, NULL);
535    
536    (void)pchars((unsigned char *)(cb->subject + cb->current_position),
537      cb->subject_length - cb->current_position, f);
538    
539    if (f != NULL) fprintf(f, "\n");
540    
541    /* Always print appropriate indicators, with callout number if not already
542    shown. For automatic callouts, show the pattern offset. */
543    
544    if (cb->callout_number == 255)
545      {
546      fprintf(outfile, "%+3d ", cb->pattern_position);
547      if (cb->pattern_position > 99) fprintf(outfile, "\n    ");
548      }
549    else
550      {
551      if (callout_extra) fprintf(outfile, "    ");
552        else fprintf(outfile, "%3d ", cb->callout_number);
553      }
554    
555    for (i = 0; i < pre_start; i++) fprintf(outfile, " ");
556    fprintf(outfile, "^");
557    
558    if (post_start > 0)
559      {
560      for (i = 0; i < post_start - 1; i++) fprintf(outfile, " ");
561      fprintf(outfile, "^");
562      }
563    
564    for (i = 0; i < subject_length - pre_start - post_start + 4; i++)
565      fprintf(outfile, " ");
566    
567    fprintf(outfile, "%.*s", (cb->next_item_length == 0)? 1 : cb->next_item_length,
568      pbuffer + cb->pattern_position);
569    
570    fprintf(outfile, "\n");
571    first_callout = 0;
572    
573    if (cb->callout_data != NULL)
574      {
575      int callout_data = *((int *)(cb->callout_data));
576      if (callout_data != 0)
577        {
578        fprintf(outfile, "Callout data = %d\n", callout_data);
579        return callout_data;
580        }
581      }
582    
583    return (cb->callout_number != callout_fail_id)? 0 :
584           (++callout_count >= callout_fail_count)? 1 : 0;
585  }  }
586    
587    
588    /*************************************************
589    *            Local malloc functions              *
590    *************************************************/
591    
592  /* Alternative malloc function, to test functionality and show the size of the  /* Alternative malloc function, to test functionality and show the size of the
593  compiled re. */  compiled re. */
594    
595  static void *new_malloc(size_t size)  static void *new_malloc(size_t size)
596  {  {
597  if (log_store) fprintf(outfile, "Store size request: %d\n", (int)size);  void *block = malloc(size);
598  return malloc(size);  gotten_store = size;
599    if (show_malloc)
600      fprintf(outfile, "malloc       %3d %p\n", (int)size, block);
601    return block;
602    }
603    
604    static void new_free(void *block)
605    {
606    if (show_malloc)
607      fprintf(outfile, "free             %p\n", block);
608    free(block);
609    }
610    
611    
612    /* For recursion malloc/free, to test stacking calls */
613    
614    static void *stack_malloc(size_t size)
615    {
616    void *block = malloc(size);
617    if (show_malloc)
618      fprintf(outfile, "stack_malloc %3d %p\n", (int)size, block);
619    return block;
620    }
621    
622    static void stack_free(void *block)
623    {
624    if (show_malloc)
625      fprintf(outfile, "stack_free       %p\n", block);
626    free(block);
627    }
628    
629    
630    /*************************************************
631    *          Call pcre_fullinfo()                  *
632    *************************************************/
633    
634    /* Get one piece of information from the pcre_fullinfo() function */
635    
636    static void new_info(pcre *re, pcre_extra *study, int option, void *ptr)
637    {
638    int rc;
639    if ((rc = pcre_fullinfo(re, study, option, ptr)) < 0)
640      fprintf(outfile, "Error %d from pcre_fullinfo(%d)\n", rc, option);
641    }
642    
643    
644    
645    /*************************************************
646    *         Byte flipping function                 *
647    *************************************************/
648    
649    static unsigned long int
650    byteflip(unsigned long int value, int n)
651    {
652    if (n == 2) return ((value & 0x00ff) << 8) | ((value & 0xff00) >> 8);
653    return ((value & 0x000000ff) << 24) |
654           ((value & 0x0000ff00) <<  8) |
655           ((value & 0x00ff0000) >>  8) |
656           ((value & 0xff000000) >> 24);
657    }
658    
659    
660    
661    
662    /*************************************************
663    *        Check match or recursion limit          *
664    *************************************************/
665    
666    static int
667    check_match_limit(pcre *re, pcre_extra *extra, uschar *bptr, int len,
668      int start_offset, int options, int *use_offsets, int use_size_offsets,
669      int flag, unsigned long int *limit, int errnumber, const char *msg)
670    {
671    int count;
672    int min = 0;
673    int mid = 64;
674    int max = -1;
675    
676    extra->flags |= flag;
677    
678    for (;;)
679      {
680      *limit = mid;
681    
682      count = pcre_exec(re, extra, (char *)bptr, len, start_offset, options,
683        use_offsets, use_size_offsets);
684    
685      if (count == errnumber)
686        {
687        /* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
688        min = mid;
689        mid = (mid == max - 1)? max : (max > 0)? (min + max)/2 : mid*2;
690        }
691    
692      else if (count >= 0 || count == PCRE_ERROR_NOMATCH ||
693                             count == PCRE_ERROR_PARTIAL)
694        {
695        if (mid == min + 1)
696          {
697          fprintf(outfile, "Minimum %s limit = %d\n", msg, mid);
698          break;
699          }
700        /* fprintf(outfile, "Testing %s limit = %d\n", msg, mid); */
701        max = mid;
702        mid = (min + mid)/2;
703        }
704      else break;    /* Some other error */
705      }
706    
707    extra->flags &= ~flag;
708    return count;
709    }
710    
711    
712    
713    /*************************************************
714    *         Case-independent strncmp() function    *
715    *************************************************/
716    
717    /*
718    Arguments:
719      s         first string
720      t         second string
721      n         number of characters to compare
722    
723    Returns:    < 0, = 0, or > 0, according to the comparison
724    */
725    
726    static int
727    strncmpic(uschar *s, uschar *t, int n)
728    {
729    while (n--)
730      {
731      int c = tolower(*s++) - tolower(*t++);
732      if (c) return c;
733      }
734    return 0;
735  }  }
736    
737    
738    
739    /*************************************************
740    *         Check newline indicator                *
741    *************************************************/
742    
743    /* This is used both at compile and run-time to check for <xxx> escapes, where
744    xxx is LF, CR, CRLF, ANYCRLF, or ANY. Print a message and return 0 if there is
745    no match.
746    
747    Arguments:
748      p           points after the leading '<'
749      f           file for error message
750    
751    Returns:      appropriate PCRE_NEWLINE_xxx flags, or 0
752    */
753    
754    static int
755    check_newline(uschar *p, FILE *f)
756    {
757    if (strncmpic(p, (uschar *)"cr>", 3) == 0) return PCRE_NEWLINE_CR;
758    if (strncmpic(p, (uschar *)"lf>", 3) == 0) return PCRE_NEWLINE_LF;
759    if (strncmpic(p, (uschar *)"crlf>", 5) == 0) return PCRE_NEWLINE_CRLF;
760    if (strncmpic(p, (uschar *)"anycrlf>", 8) == 0) return PCRE_NEWLINE_ANYCRLF;
761    if (strncmpic(p, (uschar *)"any>", 4) == 0) return PCRE_NEWLINE_ANY;
762    if (strncmpic(p, (uschar *)"bsr_anycrlf>", 12) == 0) return PCRE_BSR_ANYCRLF;
763    if (strncmpic(p, (uschar *)"bsr_unicode>", 12) == 0) return PCRE_BSR_UNICODE;
764    fprintf(f, "Unknown newline type at: <%s\n", p);
765    return 0;
766    }
767    
768    
769    
770    /*************************************************
771    *             Usage function                     *
772    *************************************************/
773    
774    static void
775    usage(void)
776    {
777    printf("Usage:     pcretest [options] [<input file> [<output file>]]\n\n");
778    printf("Input and output default to stdin and stdout.\n");
779    #ifdef SUPPORT_LIBREADLINE
780    printf("If input is a terminal, readline() is used to read from it.\n");
781    #else
782    printf("This version of pcretest is not linked with readline().\n");
783    #endif
784    printf("\nOptions:\n");
785    printf("  -b       show compiled code (bytecode)\n");
786    printf("  -C       show PCRE compile-time options and exit\n");
787    printf("  -d       debug: show compiled code and information (-b and -i)\n");
788    #if !defined NODFA
789    printf("  -dfa     force DFA matching for all subjects\n");
790    #endif
791    printf("  -help    show usage information\n");
792    printf("  -i       show information about compiled patterns\n"
793           "  -M       find MATCH_LIMIT minimum for each subject\n"
794           "  -m       output memory used information\n"
795           "  -o <n>   set size of offsets vector to <n>\n");
796    #if !defined NOPOSIX
797    printf("  -p       use POSIX interface\n");
798    #endif
799    printf("  -q       quiet: do not output PCRE version number at start\n");
800    printf("  -S <n>   set stack size to <n> megabytes\n");
801    printf("  -s       output store (memory) used information\n"
802           "  -t       time compilation and execution\n");
803    printf("  -t <n>   time compilation and execution, repeating <n> times\n");
804    printf("  -tm      time execution (matching) only\n");
805    printf("  -tm <n>  time execution (matching) only, repeating <n> times\n");
806    }
807    
808    
809    
810    /*************************************************
811    *                Main Program                    *
812    *************************************************/
813    
814  /* Read lines from named file or stdin and write to named file or stdout; lines  /* Read lines from named file or stdin and write to named file or stdout; lines
815  consist of a regular expression, in delimiters and optionally followed by  consist of a regular expression, in delimiters and optionally followed by
816  options, followed by a set of test data, terminated by an empty line. */  options, followed by a set of test data, terminated by an empty line. */
# Line 263  int main(int argc, char **argv) Line 820  int main(int argc, char **argv)
820  FILE *infile = stdin;  FILE *infile = stdin;
821  int options = 0;  int options = 0;
822  int study_options = 0;  int study_options = 0;
823    int default_find_match_limit = FALSE;
824  int op = 1;  int op = 1;
825  int timeit = 0;  int timeit = 0;
826    int timeitm = 0;
827  int showinfo = 0;  int showinfo = 0;
828    int showstore = 0;
829    int quiet = 0;
830    int size_offsets = 45;
831    int size_offsets_max;
832    int *offsets = NULL;
833    #if !defined NOPOSIX
834  int posix = 0;  int posix = 0;
835    #endif
836  int debug = 0;  int debug = 0;
837  unsigned char buffer[30000];  int done = 0;
838  unsigned char dbuffer[1024];  int all_use_dfa = 0;
839    int yield = 0;
840    int stack_size;
841    
842    /* These vectors store, end-to-end, a list of captured substring names. Assume
843    that 1024 is plenty long enough for the few names we'll be testing. */
844    
845    uschar copynames[1024];
846    uschar getnames[1024];
847    
848    uschar *copynamesptr;
849    uschar *getnamesptr;
850    
851  /* Static so that new_malloc can use it. */  /* Get buffers from malloc() so that Electric Fence will check their misuse
852    when I am debugging. They grow automatically when very long lines are read. */
853    
854    buffer = (unsigned char *)malloc(buffer_size);
855    dbuffer = (unsigned char *)malloc(buffer_size);
856    pbuffer = (unsigned char *)malloc(buffer_size);
857    
858    /* The outfile variable is static so that new_malloc can use it. */
859    
860  outfile = stdout;  outfile = stdout;
861    
862    /* The following  _setmode() stuff is some Windows magic that tells its runtime
863    library to translate CRLF into a single LF character. At least, that's what
864    I've been told: never having used Windows I take this all on trust. Originally
865    it set 0x8000, but then I was advised that _O_BINARY was better. */
866    
867    #if defined(_WIN32) || defined(WIN32)
868    _setmode( _fileno( stdout ), _O_BINARY );
869    #endif
870    
871  /* Scan options */  /* Scan options */
872    
873  while (argc > 1 && argv[op][0] == '-')  while (argc > 1 && argv[op][0] == '-')
874    {    {
875    if (strcmp(argv[op], "-s") == 0) log_store = 1;    unsigned char *endptr;
876    else if (strcmp(argv[op], "-t") == 0) timeit = 1;  
877      if (strcmp(argv[op], "-s") == 0 || strcmp(argv[op], "-m") == 0)
878        showstore = 1;
879      else if (strcmp(argv[op], "-q") == 0) quiet = 1;
880      else if (strcmp(argv[op], "-b") == 0) debug = 1;
881    else if (strcmp(argv[op], "-i") == 0) showinfo = 1;    else if (strcmp(argv[op], "-i") == 0) showinfo = 1;
882    else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;    else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;
883      else if (strcmp(argv[op], "-M") == 0) default_find_match_limit = TRUE;
884    #if !defined NODFA
885      else if (strcmp(argv[op], "-dfa") == 0) all_use_dfa = 1;
886    #endif
887      else if (strcmp(argv[op], "-o") == 0 && argc > 2 &&
888          ((size_offsets = get_value((unsigned char *)argv[op+1], &endptr)),
889            *endptr == 0))
890        {
891        op++;
892        argc--;
893        }
894      else if (strcmp(argv[op], "-t") == 0 || strcmp(argv[op], "-tm") == 0)
895        {
896        int both = argv[op][2] == 0;
897        int temp;
898        if (argc > 2 && (temp = get_value((unsigned char *)argv[op+1], &endptr),
899                         *endptr == 0))
900          {
901          timeitm = temp;
902          op++;
903          argc--;
904          }
905        else timeitm = LOOPREPEAT;
906        if (both) timeit = timeitm;
907        }
908      else if (strcmp(argv[op], "-S") == 0 && argc > 2 &&
909          ((stack_size = get_value((unsigned char *)argv[op+1], &endptr)),
910            *endptr == 0))
911        {
912    #if defined(_WIN32) || defined(WIN32)
913        printf("PCRE: -S not supported on this OS\n");
914        exit(1);
915    #else
916        int rc;
917        struct rlimit rlim;
918        getrlimit(RLIMIT_STACK, &rlim);
919        rlim.rlim_cur = stack_size * 1024 * 1024;
920        rc = setrlimit(RLIMIT_STACK, &rlim);
921        if (rc != 0)
922          {
923        printf("PCRE: setrlimit() failed with error %d\n", rc);
924        exit(1);
925          }
926        op++;
927        argc--;
928    #endif
929        }
930    #if !defined NOPOSIX
931    else if (strcmp(argv[op], "-p") == 0) posix = 1;    else if (strcmp(argv[op], "-p") == 0) posix = 1;
932    #endif
933      else if (strcmp(argv[op], "-C") == 0)
934        {
935        int rc;
936        unsigned long int lrc;
937        printf("PCRE version %s\n", pcre_version());
938        printf("Compiled with\n");
939        (void)pcre_config(PCRE_CONFIG_UTF8, &rc);
940        printf("  %sUTF-8 support\n", rc? "" : "No ");
941        (void)pcre_config(PCRE_CONFIG_UNICODE_PROPERTIES, &rc);
942        printf("  %sUnicode properties support\n", rc? "" : "No ");
943        (void)pcre_config(PCRE_CONFIG_NEWLINE, &rc);
944        /* Note that these values are always the ASCII values, even
945        in EBCDIC environments. CR is 13 and NL is 10. */
946        printf("  Newline sequence is %s\n", (rc == 13)? "CR" :
947          (rc == 10)? "LF" : (rc == (13<<8 | 10))? "CRLF" :
948          (rc == -2)? "ANYCRLF" :
949          (rc == -1)? "ANY" : "???");
950        (void)pcre_config(PCRE_CONFIG_BSR, &rc);
951        printf("  \\R matches %s\n", rc? "CR, LF, or CRLF only" :
952                                         "all Unicode newlines");
953        (void)pcre_config(PCRE_CONFIG_LINK_SIZE, &rc);
954        printf("  Internal link size = %d\n", rc);
955        (void)pcre_config(PCRE_CONFIG_POSIX_MALLOC_THRESHOLD, &rc);
956        printf("  POSIX malloc threshold = %d\n", rc);
957        (void)pcre_config(PCRE_CONFIG_MATCH_LIMIT, &lrc);
958        printf("  Default match limit = %ld\n", lrc);
959        (void)pcre_config(PCRE_CONFIG_MATCH_LIMIT_RECURSION, &lrc);
960        printf("  Default recursion depth limit = %ld\n", lrc);
961        (void)pcre_config(PCRE_CONFIG_STACKRECURSE, &rc);
962        printf("  Match recursion uses %s\n", rc? "stack" : "heap");
963        goto EXIT;
964        }
965      else if (strcmp(argv[op], "-help") == 0 ||
966               strcmp(argv[op], "--help") == 0)
967        {
968        usage();
969        goto EXIT;
970        }
971    else    else
972      {      {
973      printf("*** Unknown option %s\n", argv[op]);      printf("** Unknown or malformed option %s\n", argv[op]);
974      return 1;      usage();
975        yield = 1;
976        goto EXIT;
977      }      }
978    op++;    op++;
979    argc--;    argc--;
980    }    }
981    
982    /* Get the store for the offsets vector, and remember what it was */
983    
984    size_offsets_max = size_offsets;
985    offsets = (int *)malloc(size_offsets_max * sizeof(int));
986    if (offsets == NULL)
987      {
988      printf("** Failed to get %d bytes of memory for offsets vector\n",
989        (int)(size_offsets_max * sizeof(int)));
990      yield = 1;
991      goto EXIT;
992      }
993    
994  /* Sort out the input and output files */  /* Sort out the input and output files */
995    
996  if (argc > 1)  if (argc > 1)
997    {    {
998    infile = fopen(argv[op], "r");    infile = fopen(argv[op], INPUT_MODE);
999    if (infile == NULL)    if (infile == NULL)
1000      {      {
1001      printf("** Failed to open %s\n", argv[op]);      printf("** Failed to open %s\n", argv[op]);
1002      return 1;      yield = 1;
1003        goto EXIT;
1004      }      }
1005    }    }
1006    
1007  if (argc > 2)  if (argc > 2)
1008    {    {
1009    outfile = fopen(argv[op+1], "w");    outfile = fopen(argv[op+1], OUTPUT_MODE);
1010    if (outfile == NULL)    if (outfile == NULL)
1011      {      {
1012      printf("** Failed to open %s\n", argv[op+1]);      printf("** Failed to open %s\n", argv[op+1]);
1013      return 1;      yield = 1;
1014        goto EXIT;
1015      }      }
1016    }    }
1017    
1018  /* Set alternative malloc function */  /* Set alternative malloc function */
1019    
1020  pcre_malloc = new_malloc;  pcre_malloc = new_malloc;
1021    pcre_free = new_free;
1022    pcre_stack_malloc = stack_malloc;
1023    pcre_stack_free = stack_free;
1024    
1025  /* Heading line, then prompt for first re if stdin */  /* Heading line unless quiet, then prompt for first regex if stdin */
1026    
1027  fprintf(outfile, "Testing Perl-Compatible Regular Expressions\n");  if (!quiet) fprintf(outfile, "PCRE version %s\n\n", pcre_version());
 fprintf(outfile, "PCRE version %s\n\n", pcre_version());  
1028    
1029  /* Main loop */  /* Main loop */
1030    
1031  for (;;)  while (!done)
1032    {    {
1033    pcre *re = NULL;    pcre *re = NULL;
1034    pcre_extra *extra = NULL;    pcre_extra *extra = NULL;
1035    
1036    #if !defined NOPOSIX  /* There are still compilers that require no indent */
1037    regex_t preg;    regex_t preg;
   const char *error;  
   unsigned char *p, *pp;  
   int do_study = 0;  
   int do_debug = 0;  
1038    int do_posix = 0;    int do_posix = 0;
1039    int erroroffset, len, delimiter;  #endif
1040    
1041    if (infile == stdin) printf("  re> ");    const char *error;
1042    if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) break;    unsigned char *p, *pp, *ppp;
1043    if (infile != stdin) fprintf(outfile, (char *)buffer);    unsigned char *to_file = NULL;
1044      const unsigned char *tables = NULL;
1045      unsigned long int true_size, true_study_size = 0;
1046      size_t size, regex_gotten_store;
1047      int do_study = 0;
1048      int do_debug = debug;
1049      int do_G = 0;
1050      int do_g = 0;
1051      int do_showinfo = showinfo;
1052      int do_showrest = 0;
1053      int do_flip = 0;
1054      int erroroffset, len, delimiter, poffset;
1055    
1056      use_utf8 = 0;
1057      debug_lengths = 1;
1058    
1059      if (extend_inputline(infile, buffer, "  re> ") == NULL) break;
1060      if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1061      fflush(outfile);
1062    
1063    p = buffer;    p = buffer;
1064    while (isspace(*p)) p++;    while (isspace(*p)) p++;
1065    if (*p == 0) continue;    if (*p == 0) continue;
1066    
1067    /* Get the delimiter and seek the end of the pattern; if is isn't    /* See if the pattern is to be loaded pre-compiled from a file. */
1068    complete, read more. */  
1069      if (*p == '<' && strchr((char *)(p+1), '<') == NULL)
1070        {
1071        unsigned long int magic, get_options;
1072        uschar sbuf[8];
1073        FILE *f;
1074    
1075        p++;
1076        pp = p + (int)strlen((char *)p);
1077        while (isspace(pp[-1])) pp--;
1078        *pp = 0;
1079    
1080        f = fopen((char *)p, "rb");
1081        if (f == NULL)
1082          {
1083          fprintf(outfile, "Failed to open %s: %s\n", p, strerror(errno));
1084          continue;
1085          }
1086    
1087        if (fread(sbuf, 1, 8, f) != 8) goto FAIL_READ;
1088    
1089        true_size =
1090          (sbuf[0] << 24) | (sbuf[1] << 16) | (sbuf[2] << 8) | sbuf[3];
1091        true_study_size =
1092          (sbuf[4] << 24) | (sbuf[5] << 16) | (sbuf[6] << 8) | sbuf[7];
1093    
1094        re = (real_pcre *)new_malloc(true_size);
1095        regex_gotten_store = gotten_store;
1096    
1097        if (fread(re, 1, true_size, f) != true_size) goto FAIL_READ;
1098    
1099        magic = ((real_pcre *)re)->magic_number;
1100        if (magic != MAGIC_NUMBER)
1101          {
1102          if (byteflip(magic, sizeof(magic)) == MAGIC_NUMBER)
1103            {
1104            do_flip = 1;
1105            }
1106          else
1107            {
1108            fprintf(outfile, "Data in %s is not a compiled PCRE regex\n", p);
1109            fclose(f);
1110            continue;
1111            }
1112          }
1113    
1114        fprintf(outfile, "Compiled regex%s loaded from %s\n",
1115          do_flip? " (byte-inverted)" : "", p);
1116    
1117        /* Need to know if UTF-8 for printing data strings */
1118    
1119        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1120        use_utf8 = (get_options & PCRE_UTF8) != 0;
1121    
1122        /* Now see if there is any following study data */
1123    
1124        if (true_study_size != 0)
1125          {
1126          pcre_study_data *psd;
1127    
1128          extra = (pcre_extra *)new_malloc(sizeof(pcre_extra) + true_study_size);
1129          extra->flags = PCRE_EXTRA_STUDY_DATA;
1130    
1131          psd = (pcre_study_data *)(((char *)extra) + sizeof(pcre_extra));
1132          extra->study_data = psd;
1133    
1134          if (fread(psd, 1, true_study_size, f) != true_study_size)
1135            {
1136            FAIL_READ:
1137            fprintf(outfile, "Failed to read data from %s\n", p);
1138            if (extra != NULL) new_free(extra);
1139            if (re != NULL) new_free(re);
1140            fclose(f);
1141            continue;
1142            }
1143          fprintf(outfile, "Study data loaded from %s\n", p);
1144          do_study = 1;     /* To get the data output if requested */
1145          }
1146        else fprintf(outfile, "No study data\n");
1147    
1148        fclose(f);
1149        goto SHOW_INFO;
1150        }
1151    
1152      /* In-line pattern (the usual case). Get the delimiter and seek the end of
1153      the pattern; if is isn't complete, read more. */
1154    
1155    delimiter = *p++;    delimiter = *p++;
1156    
1157    if (isalnum(delimiter))    if (isalnum(delimiter) || delimiter == '\\')
1158      {      {
1159      fprintf(outfile, "** Delimiter must not be alphameric\n");      fprintf(outfile, "** Delimiter must not be alphanumeric or \\\n");
1160      goto SKIP_DATA;      goto SKIP_DATA;
1161      }      }
1162    
1163    pp = p;    pp = p;
1164      poffset = p - buffer;
1165    
1166    for(;;)    for(;;)
1167      {      {
1168      while (*pp != 0 && *pp != delimiter) pp++;      while (*pp != 0)
     if (*pp != 0) break;  
   
     len = sizeof(buffer) - (pp - buffer);  
     if (len < 256)  
1169        {        {
1170        fprintf(outfile, "** Expression too long - missing delimiter?\n");        if (*pp == '\\' && pp[1] != 0) pp++;
1171        goto SKIP_DATA;          else if (*pp == delimiter) break;
1172          pp++;
1173        }        }
1174        if (*pp != 0) break;
1175      if (infile == stdin) printf("    > ");      if ((pp = extend_inputline(infile, pp, "    > ")) == NULL)
     if (fgets((char *)pp, len, infile) == NULL)  
1176        {        {
1177        fprintf(outfile, "** Unexpected EOF\n");        fprintf(outfile, "** Unexpected EOF\n");
1178        goto END_OFF;        done = 1;
1179          goto CONTINUE;
1180        }        }
1181      if (infile != stdin) fprintf(outfile, (char *)pp);      if (infile != stdin) fprintf(outfile, "%s", (char *)pp);
1182      }      }
1183    
1184    /* Terminate the pattern at the delimiter */    /* The buffer may have moved while being extended; reset the start of data
1185      pointer to the correct relative point in the buffer. */
1186    
1187      p = buffer + poffset;
1188    
1189      /* If the first character after the delimiter is backslash, make
1190      the pattern end with backslash. This is purely to provide a way
1191      of testing for the error message when a pattern ends with backslash. */
1192    
1193      if (pp[1] == '\\') *pp++ = '\\';
1194    
1195      /* Terminate the pattern at the delimiter, and save a copy of the pattern
1196      for callouts. */
1197    
1198    *pp++ = 0;    *pp++ = 0;
1199      strcpy((char *)pbuffer, (char *)p);
1200    
1201    /* Look for options after final delimiter */    /* Look for options after final delimiter */
1202    
1203    options = 0;    options = 0;
1204    study_options = 0;    study_options = 0;
1205      log_store = showstore;  /* default from command line */
1206    
1207    while (*pp != 0)    while (*pp != 0)
1208      {      {
1209      switch (*pp++)      switch (*pp++)
1210        {        {
1211          case 'f': options |= PCRE_FIRSTLINE; break;
1212          case 'g': do_g = 1; break;
1213        case 'i': options |= PCRE_CASELESS; break;        case 'i': options |= PCRE_CASELESS; break;
1214        case 'm': options |= PCRE_MULTILINE; break;        case 'm': options |= PCRE_MULTILINE; break;
1215        case 's': options |= PCRE_DOTALL; break;        case 's': options |= PCRE_DOTALL; break;
1216        case 'x': options |= PCRE_EXTENDED; break;        case 'x': options |= PCRE_EXTENDED; break;
1217    
1218          case '+': do_showrest = 1; break;
1219        case 'A': options |= PCRE_ANCHORED; break;        case 'A': options |= PCRE_ANCHORED; break;
1220        case 'D': do_debug = 1; break;        case 'B': do_debug = 1; break;
1221          case 'C': options |= PCRE_AUTO_CALLOUT; break;
1222          case 'D': do_debug = do_showinfo = 1; break;
1223        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;        case 'E': options |= PCRE_DOLLAR_ENDONLY; break;
1224          case 'F': do_flip = 1; break;
1225          case 'G': do_G = 1; break;
1226          case 'I': do_showinfo = 1; break;
1227          case 'J': options |= PCRE_DUPNAMES; break;
1228          case 'M': log_store = 1; break;
1229          case 'N': options |= PCRE_NO_AUTO_CAPTURE; break;
1230    
1231    #if !defined NOPOSIX
1232        case 'P': do_posix = 1; break;        case 'P': do_posix = 1; break;
1233    #endif
1234    
1235        case 'S': do_study = 1; break;        case 'S': do_study = 1; break;
1236        case 'I': study_options |= PCRE_CASELESS; break;        case 'U': options |= PCRE_UNGREEDY; break;
1237        case 'X': options |= PCRE_EXTRA; break;        case 'X': options |= PCRE_EXTRA; break;
1238        case '\n': case ' ': break;        case 'Z': debug_lengths = 0; break;
1239          case '8': options |= PCRE_UTF8; use_utf8 = 1; break;
1240          case '?': options |= PCRE_NO_UTF8_CHECK; break;
1241    
1242          case 'L':
1243          ppp = pp;
1244          /* The '\r' test here is so that it works on Windows. */
1245          /* The '0' test is just in case this is an unterminated line. */
1246          while (*ppp != 0 && *ppp != '\n' && *ppp != '\r' && *ppp != ' ') ppp++;
1247          *ppp = 0;
1248          if (setlocale(LC_CTYPE, (const char *)pp) == NULL)
1249            {
1250            fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);
1251            goto SKIP_DATA;
1252            }
1253          locale_set = 1;
1254          tables = pcre_maketables();
1255          pp = ppp;
1256          break;
1257    
1258          case '>':
1259          to_file = pp;
1260          while (*pp != 0) pp++;
1261          while (isspace(pp[-1])) pp--;
1262          *pp = 0;
1263          break;
1264    
1265          case '<':
1266            {
1267            if (strncmp((char *)pp, "JS>", 3) == 0)
1268              {
1269              options |= PCRE_JAVASCRIPT_COMPAT;
1270              pp += 3;
1271              }
1272            else
1273              {
1274              int x = check_newline(pp, outfile);
1275              if (x == 0) goto SKIP_DATA;
1276              options |= x;
1277              while (*pp++ != '>');
1278              }
1279            }
1280          break;
1281    
1282          case '\r':                      /* So that it works in Windows */
1283          case '\n':
1284          case ' ':
1285          break;
1286    
1287        default:        default:
1288        fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);        fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);
1289        goto SKIP_DATA;        goto SKIP_DATA;
1290        }        }
1291      }      }
1292    
1293    /* Handle compiing via the POSIX interface, which doesn't support the    /* Handle compiling via the POSIX interface, which doesn't support the
1294    timing, showing, or debugging options. */    timing, showing, or debugging options, nor the ability to pass over
1295      local character tables. */
1296    
1297    #if !defined NOPOSIX
1298    if (posix || do_posix)    if (posix || do_posix)
1299      {      {
1300      int rc;      int rc;
1301      int cflags = 0;      int cflags = 0;
1302    
1303      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;
1304      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;
1305        if ((options & PCRE_DOTALL) != 0) cflags |= REG_DOTALL;
1306        if ((options & PCRE_NO_AUTO_CAPTURE) != 0) cflags |= REG_NOSUB;
1307        if ((options & PCRE_UTF8) != 0) cflags |= REG_UTF8;
1308        if ((options & PCRE_UNGREEDY) != 0) cflags |= REG_UNGREEDY;
1309    
1310      rc = regcomp(&preg, (char *)p, cflags);      rc = regcomp(&preg, (char *)p, cflags);
1311    
1312      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
# Line 426  for (;;) Line 1314  for (;;)
1314    
1315      if (rc != 0)      if (rc != 0)
1316        {        {
1317        (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));        (void)regerror(rc, &preg, (char *)buffer, buffer_size);
1318        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
1319        goto SKIP_DATA;        goto SKIP_DATA;
1320        }        }
# Line 435  for (;;) Line 1323  for (;;)
1323    /* Handle compiling via the native interface */    /* Handle compiling via the native interface */
1324    
1325    else    else
1326    #endif  /* !defined NOPOSIX */
1327    
1328      {      {
1329      if (timeit)      unsigned long int get_options;
1330    
1331        if (timeit > 0)
1332        {        {
1333        register int i;        register int i;
1334        clock_t time_taken;        clock_t time_taken;
1335        clock_t start_time = clock();        clock_t start_time = clock();
1336        for (i = 0; i < 4000; i++)        for (i = 0; i < timeit; i++)
1337          {          {
1338          re = pcre_compile((char *)p, options, &error, &erroroffset);          re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1339          if (re != NULL) free(re);          if (re != NULL) free(re);
1340          }          }
1341        time_taken = clock() - start_time;        time_taken = clock() - start_time;
1342        fprintf(outfile, "Compile time %.2f milliseconds\n",        fprintf(outfile, "Compile time %.4f milliseconds\n",
1343          ((double)time_taken)/(4 * CLOCKS_PER_SEC));          (((double)time_taken * 1000.0) / (double)timeit) /
1344              (double)CLOCKS_PER_SEC);
1345        }        }
1346    
1347      re = pcre_compile((char *)p, options, &error, &erroroffset);      re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1348    
1349      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
1350      if non-interactive. */      if non-interactive. */
# Line 464  for (;;) Line 1357  for (;;)
1357          {          {
1358          for (;;)          for (;;)
1359            {            {
1360            if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)            if (extend_inputline(infile, buffer, NULL) == NULL)
1361              goto END_OFF;              {
1362                done = 1;
1363                goto CONTINUE;
1364                }
1365            len = (int)strlen((char *)buffer);            len = (int)strlen((char *)buffer);
1366            while (len > 0 && isspace(buffer[len-1])) len--;            while (len > 0 && isspace(buffer[len-1])) len--;
1367            if (len == 0) break;            if (len == 0) break;
1368            }            }
1369          fprintf(outfile, "\n");          fprintf(outfile, "\n");
1370          }          }
1371        continue;        goto CONTINUE;
1372          }
1373    
1374        /* Compilation succeeded. It is now possible to set the UTF-8 option from
1375        within the regex; check for this so that we know how to process the data
1376        lines. */
1377    
1378        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1379        if ((get_options & PCRE_UTF8) != 0) use_utf8 = 1;
1380    
1381        /* Print information if required. There are now two info-returning
1382        functions. The old one has a limited interface and returns only limited
1383        data. Check that it agrees with the newer one. */
1384    
1385        if (log_store)
1386          fprintf(outfile, "Memory allocation (code space): %d\n",
1387            (int)(gotten_store -
1388                  sizeof(real_pcre) -
1389                  ((real_pcre *)re)->name_count * ((real_pcre *)re)->name_entry_size));
1390    
1391        /* Extract the size for possible writing before possibly flipping it,
1392        and remember the store that was got. */
1393    
1394        true_size = ((real_pcre *)re)->size;
1395        regex_gotten_store = gotten_store;
1396    
1397        /* If /S was present, study the regexp to generate additional info to
1398        help with the matching. */
1399    
1400        if (do_study)
1401          {
1402          if (timeit > 0)
1403            {
1404            register int i;
1405            clock_t time_taken;
1406            clock_t start_time = clock();
1407            for (i = 0; i < timeit; i++)
1408              extra = pcre_study(re, study_options, &error);
1409            time_taken = clock() - start_time;
1410            if (extra != NULL) free(extra);
1411            fprintf(outfile, "  Study time %.4f milliseconds\n",
1412              (((double)time_taken * 1000.0) / (double)timeit) /
1413                (double)CLOCKS_PER_SEC);
1414            }
1415          extra = pcre_study(re, study_options, &error);
1416          if (error != NULL)
1417            fprintf(outfile, "Failed to study: %s\n", error);
1418          else if (extra != NULL)
1419            true_study_size = ((pcre_study_data *)(extra->study_data))->size;
1420          }
1421    
1422        /* If the 'F' option was present, we flip the bytes of all the integer
1423        fields in the regex data block and the study block. This is to make it
1424        possible to test PCRE's handling of byte-flipped patterns, e.g. those
1425        compiled on a different architecture. */
1426    
1427        if (do_flip)
1428          {
1429          real_pcre *rre = (real_pcre *)re;
1430          rre->magic_number =
1431            byteflip(rre->magic_number, sizeof(rre->magic_number));
1432          rre->size = byteflip(rre->size, sizeof(rre->size));
1433          rre->options = byteflip(rre->options, sizeof(rre->options));
1434          rre->flags = (pcre_uint16)byteflip(rre->flags, sizeof(rre->flags));
1435          rre->top_bracket =
1436            (pcre_uint16)byteflip(rre->top_bracket, sizeof(rre->top_bracket));
1437          rre->top_backref =
1438            (pcre_uint16)byteflip(rre->top_backref, sizeof(rre->top_backref));
1439          rre->first_byte =
1440            (pcre_uint16)byteflip(rre->first_byte, sizeof(rre->first_byte));
1441          rre->req_byte =
1442            (pcre_uint16)byteflip(rre->req_byte, sizeof(rre->req_byte));
1443          rre->name_table_offset = (pcre_uint16)byteflip(rre->name_table_offset,
1444            sizeof(rre->name_table_offset));
1445          rre->name_entry_size = (pcre_uint16)byteflip(rre->name_entry_size,
1446            sizeof(rre->name_entry_size));
1447          rre->name_count = (pcre_uint16)byteflip(rre->name_count,
1448            sizeof(rre->name_count));
1449    
1450          if (extra != NULL)
1451            {
1452            pcre_study_data *rsd = (pcre_study_data *)(extra->study_data);
1453            rsd->size = byteflip(rsd->size, sizeof(rsd->size));
1454            rsd->flags = byteflip(rsd->flags, sizeof(rsd->flags));
1455            rsd->minlength = byteflip(rsd->minlength, sizeof(rsd->minlength));
1456            }
1457        }        }
1458    
1459      /* Compilation succeeded; print data if required */      /* Extract information from the compiled data if required */
1460    
1461        SHOW_INFO:
1462    
1463      if (showinfo || do_debug)      if (do_debug)
1464        {        {
1465        int first_char, count;        fprintf(outfile, "------------------------------------------------------------------\n");
1466          pcre_printint(re, outfile, debug_lengths);
1467          }
1468    
1469        if (debug || do_debug) print_internals(re);      /* We already have the options in get_options (see above) */
1470    
1471        count = pcre_info(re, &options, &first_char);      if (do_showinfo)
1472          {
1473          unsigned long int all_options;
1474    #if !defined NOINFOCHECK
1475          int old_first_char, old_options, old_count;
1476    #endif
1477          int count, backrefmax, first_char, need_char, okpartial, jchanged,
1478            hascrorlf;
1479          int nameentrysize, namecount;
1480          const uschar *nametable;
1481    
1482          new_info(re, NULL, PCRE_INFO_SIZE, &size);
1483          new_info(re, NULL, PCRE_INFO_CAPTURECOUNT, &count);
1484          new_info(re, NULL, PCRE_INFO_BACKREFMAX, &backrefmax);
1485          new_info(re, NULL, PCRE_INFO_FIRSTBYTE, &first_char);
1486          new_info(re, NULL, PCRE_INFO_LASTLITERAL, &need_char);
1487          new_info(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &nameentrysize);
1488          new_info(re, NULL, PCRE_INFO_NAMECOUNT, &namecount);
1489          new_info(re, NULL, PCRE_INFO_NAMETABLE, (void *)&nametable);
1490          new_info(re, NULL, PCRE_INFO_OKPARTIAL, &okpartial);
1491          new_info(re, NULL, PCRE_INFO_JCHANGED, &jchanged);
1492          new_info(re, NULL, PCRE_INFO_HASCRORLF, &hascrorlf);
1493    
1494    #if !defined NOINFOCHECK
1495          old_count = pcre_info(re, &old_options, &old_first_char);
1496        if (count < 0) fprintf(outfile,        if (count < 0) fprintf(outfile,
1497          "Error %d while reading info\n", count);          "Error %d from pcre_info()\n", count);
1498        else        else
1499          {          {
1500          fprintf(outfile, "Identifying subpattern count = %d\n", count);          if (old_count != count) fprintf(outfile,
1501          if (options == 0) fprintf(outfile, "No options\n");            "Count disagreement: pcre_fullinfo=%d pcre_info=%d\n", count,
1502            else fprintf(outfile, "Options:%s%s%s%s%s%s%s\n",              old_count);
1503              ((options & PCRE_ANCHORED) != 0)? " anchored" : "",  
1504              ((options & PCRE_CASELESS) != 0)? " caseless" : "",          if (old_first_char != first_char) fprintf(outfile,
1505              ((options & PCRE_EXTENDED) != 0)? " extended" : "",            "First char disagreement: pcre_fullinfo=%d pcre_info=%d\n",
1506              ((options & PCRE_MULTILINE) != 0)? " multiline" : "",              first_char, old_first_char);
1507              ((options & PCRE_DOTALL) != 0)? " dotall" : "",  
1508              ((options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",          if (old_options != (int)get_options) fprintf(outfile,
1509              ((options & PCRE_EXTRA) != 0)? " extra" : "");            "Options disagreement: pcre_fullinfo=%ld pcre_info=%d\n",
1510          if (first_char == -1)              get_options, old_options);
1511            {          }
1512            fprintf(outfile, "First char at start or follows \\n\n");  #endif
1513            }  
1514          else if (first_char < 0)        if (size != regex_gotten_store) fprintf(outfile,
1515            "Size disagreement: pcre_fullinfo=%d call to malloc for %d\n",
1516            (int)size, (int)regex_gotten_store);
1517    
1518          fprintf(outfile, "Capturing subpattern count = %d\n", count);
1519          if (backrefmax > 0)
1520            fprintf(outfile, "Max back reference = %d\n", backrefmax);
1521    
1522          if (namecount > 0)
1523            {
1524            fprintf(outfile, "Named capturing subpatterns:\n");
1525            while (namecount-- > 0)
1526            {            {
1527            fprintf(outfile, "No first char\n");            fprintf(outfile, "  %s %*s%3d\n", nametable + 2,
1528                nameentrysize - 3 - (int)strlen((char *)nametable + 2), "",
1529                GET2(nametable, 0));
1530              nametable += nameentrysize;
1531            }            }
1532            }
1533    
1534          if (!okpartial) fprintf(outfile, "Partial matching not supported\n");
1535          if (hascrorlf) fprintf(outfile, "Contains explicit CR or LF match\n");
1536    
1537          all_options = ((real_pcre *)re)->options;
1538          if (do_flip) all_options = byteflip(all_options, sizeof(all_options));
1539    
1540          if (get_options == 0) fprintf(outfile, "No options\n");
1541            else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
1542              ((get_options & PCRE_ANCHORED) != 0)? " anchored" : "",
1543              ((get_options & PCRE_CASELESS) != 0)? " caseless" : "",
1544              ((get_options & PCRE_EXTENDED) != 0)? " extended" : "",
1545              ((get_options & PCRE_MULTILINE) != 0)? " multiline" : "",
1546              ((get_options & PCRE_FIRSTLINE) != 0)? " firstline" : "",
1547              ((get_options & PCRE_DOTALL) != 0)? " dotall" : "",
1548              ((get_options & PCRE_BSR_ANYCRLF) != 0)? " bsr_anycrlf" : "",
1549              ((get_options & PCRE_BSR_UNICODE) != 0)? " bsr_unicode" : "",
1550              ((get_options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
1551              ((get_options & PCRE_EXTRA) != 0)? " extra" : "",
1552              ((get_options & PCRE_UNGREEDY) != 0)? " ungreedy" : "",
1553              ((get_options & PCRE_NO_AUTO_CAPTURE) != 0)? " no_auto_capture" : "",
1554              ((get_options & PCRE_UTF8) != 0)? " utf8" : "",
1555              ((get_options & PCRE_NO_UTF8_CHECK) != 0)? " no_utf8_check" : "",
1556              ((get_options & PCRE_DUPNAMES) != 0)? " dupnames" : "");
1557    
1558          if (jchanged) fprintf(outfile, "Duplicate name status changes\n");
1559    
1560          switch (get_options & PCRE_NEWLINE_BITS)
1561            {
1562            case PCRE_NEWLINE_CR:
1563            fprintf(outfile, "Forced newline sequence: CR\n");
1564            break;
1565    
1566            case PCRE_NEWLINE_LF:
1567            fprintf(outfile, "Forced newline sequence: LF\n");
1568            break;
1569    
1570            case PCRE_NEWLINE_CRLF:
1571            fprintf(outfile, "Forced newline sequence: CRLF\n");
1572            break;
1573    
1574            case PCRE_NEWLINE_ANYCRLF:
1575            fprintf(outfile, "Forced newline sequence: ANYCRLF\n");
1576            break;
1577    
1578            case PCRE_NEWLINE_ANY:
1579            fprintf(outfile, "Forced newline sequence: ANY\n");
1580            break;
1581    
1582            default:
1583            break;
1584            }
1585    
1586          if (first_char == -1)
1587            {
1588            fprintf(outfile, "First char at start or follows newline\n");
1589            }
1590          else if (first_char < 0)
1591            {
1592            fprintf(outfile, "No first char\n");
1593            }
1594          else
1595            {
1596            int ch = first_char & 255;
1597            const char *caseless = ((first_char & REQ_CASELESS) == 0)?
1598              "" : " (caseless)";
1599            if (PRINTHEX(ch))
1600              fprintf(outfile, "First char = \'%c\'%s\n", ch, caseless);
1601            else
1602              fprintf(outfile, "First char = %d%s\n", ch, caseless);
1603            }
1604    
1605          if (need_char < 0)
1606            {
1607            fprintf(outfile, "No need char\n");
1608            }
1609          else
1610            {
1611            int ch = need_char & 255;
1612            const char *caseless = ((need_char & REQ_CASELESS) == 0)?
1613              "" : " (caseless)";
1614            if (PRINTHEX(ch))
1615              fprintf(outfile, "Need char = \'%c\'%s\n", ch, caseless);
1616            else
1617              fprintf(outfile, "Need char = %d%s\n", ch, caseless);
1618            }
1619    
1620          /* Don't output study size; at present it is in any case a fixed
1621          value, but it varies, depending on the computer architecture, and
1622          so messes up the test suite. (And with the /F option, it might be
1623          flipped.) */
1624    
1625          if (do_study)
1626            {
1627            if (extra == NULL)
1628              fprintf(outfile, "Study returned NULL\n");
1629          else          else
1630            {            {
1631            if (isprint(first_char))            uschar *start_bits = NULL;
1632              fprintf(outfile, "First char = \'%c\'\n", first_char);            int minlength;
1633    
1634              new_info(re, extra, PCRE_INFO_MINLENGTH, &minlength);
1635              fprintf(outfile, "Subject length lower bound = %d\n", minlength);
1636    
1637              new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits);
1638              if (start_bits == NULL)
1639                fprintf(outfile, "No set of starting bytes\n");
1640            else            else
1641              fprintf(outfile, "First char = %d\n", first_char);              {
1642                int i;
1643                int c = 24;
1644                fprintf(outfile, "Starting byte set: ");
1645                for (i = 0; i < 256; i++)
1646                  {
1647                  if ((start_bits[i/8] & (1<<(i&7))) != 0)
1648                    {
1649                    if (c > 75)
1650                      {
1651                      fprintf(outfile, "\n  ");
1652                      c = 2;
1653                      }
1654                    if (PRINTHEX(i) && i != ' ')
1655                      {
1656                      fprintf(outfile, "%c ", i);
1657                      c += 2;
1658                      }
1659                    else
1660                      {
1661                      fprintf(outfile, "\\x%02x ", i);
1662                      c += 5;
1663                      }
1664                    }
1665                  }
1666                fprintf(outfile, "\n");
1667                }
1668            }            }
1669          }          }
1670        }        }
1671    
1672      /* If /S was present, study the regexp to generate additional info to      /* If the '>' option was present, we write out the regex to a file, and
1673      help with the matching. */      that is all. The first 8 bytes of the file are the regex length and then
1674        the study length, in big-endian order. */
1675    
1676      if (do_study)      if (to_file != NULL)
1677        {        {
1678        if (timeit)        FILE *f = fopen((char *)to_file, "wb");
1679          if (f == NULL)
1680          {          {
1681          register int i;          fprintf(outfile, "Unable to open %s: %s\n", to_file, strerror(errno));
         clock_t time_taken;  
         clock_t start_time = clock();  
         for (i = 0; i < 4000; i++)  
           extra = pcre_study(re, study_options, &error);  
         time_taken = clock() - start_time;  
         if (extra != NULL) free(extra);  
         fprintf(outfile, "  Study time %.2f milliseconds\n",  
           ((double)time_taken)/(4 * CLOCKS_PER_SEC));  
1682          }          }
1683          else
       extra = pcre_study(re, study_options, &error);  
       if (error != NULL)  
         fprintf(outfile, "Failed to study: %s\n", error);  
       else if (extra == NULL)  
         fprintf(outfile, "Study returned NULL\n");  
   
       /* This looks at internal information. A bit kludgy to do it this  
       way, but it is useful for testing. */  
   
       else if (showinfo || do_debug)  
1684          {          {
1685          real_pcre_extra *xx = (real_pcre_extra *)extra;          uschar sbuf[8];
1686          if ((xx->options & PCRE_STUDY_MAPPED) == 0)          sbuf[0] = (uschar)((true_size >> 24) & 255);
1687            fprintf(outfile, "No starting character set\n");          sbuf[1] = (uschar)((true_size >> 16) & 255);
1688            sbuf[2] = (uschar)((true_size >>  8) & 255);
1689            sbuf[3] = (uschar)((true_size) & 255);
1690    
1691            sbuf[4] = (uschar)((true_study_size >> 24) & 255);
1692            sbuf[5] = (uschar)((true_study_size >> 16) & 255);
1693            sbuf[6] = (uschar)((true_study_size >>  8) & 255);
1694            sbuf[7] = (uschar)((true_study_size) & 255);
1695    
1696            if (fwrite(sbuf, 1, 8, f) < 8 ||
1697                fwrite(re, 1, true_size, f) < true_size)
1698              {
1699              fprintf(outfile, "Write error on %s: %s\n", to_file, strerror(errno));
1700              }
1701          else          else
1702            {            {
1703            int i;            fprintf(outfile, "Compiled regex written to %s\n", to_file);
1704            int c = 24;            if (extra != NULL)
           fprintf(outfile, "Starting character set: ");  
           for (i = 0; i < 256; i++)  
1705              {              {
1706              if ((xx->start_bits[i/8] & (1<<(i%8))) != 0)              if (fwrite(extra->study_data, 1, true_study_size, f) <
1707                    true_study_size)
1708                {                {
1709                if (c > 75)                fprintf(outfile, "Write error on %s: %s\n", to_file,
1710                  {                  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;  
                 }  
1711                }                }
1712                else fprintf(outfile, "Study data written to %s\n", to_file);
1713    
1714              }              }
           fprintf(outfile, "\n");  
1715            }            }
1716            fclose(f);
1717          }          }
1718    
1719          new_free(re);
1720          if (extra != NULL) new_free(extra);
1721          if (tables != NULL) new_free((void *)tables);
1722          continue;  /* With next regex */
1723        }        }
1724      }      }        /* End of non-POSIX compile */
1725    
1726    /* Read data lines and test them */    /* Read data lines and test them */
1727    
1728    for (;;)    for (;;)
1729      {      {
1730      unsigned char *q;      uschar *q;
1731        uschar *bptr;
1732        int *use_offsets = offsets;
1733        int use_size_offsets = size_offsets;
1734        int callout_data = 0;
1735        int callout_data_set = 0;
1736      int count, c;      int count, c;
1737      int offsets[30];      int copystrings = 0;
1738      int size_offsets = sizeof(offsets)/sizeof(int);      int find_match_limit = default_find_match_limit;
1739        int getstrings = 0;
1740        int getlist = 0;
1741        int gmatched = 0;
1742        int start_offset = 0;
1743        int g_notempty = 0;
1744        int use_dfa = 0;
1745    
1746      options = 0;      options = 0;
1747    
1748      if (infile == stdin) printf("  data> ");      *copynames = 0;
1749      if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) goto END_OFF;      *getnames = 0;
1750      if (infile != stdin) fprintf(outfile, (char *)buffer);  
1751        copynamesptr = copynames;
1752        getnamesptr = getnames;
1753    
1754        pcre_callout = callout;
1755        first_callout = 1;
1756        callout_extra = 0;
1757        callout_count = 0;
1758        callout_fail_count = 999999;
1759        callout_fail_id = -1;
1760        show_malloc = 0;
1761    
1762        if (extra != NULL) extra->flags &=
1763          ~(PCRE_EXTRA_MATCH_LIMIT|PCRE_EXTRA_MATCH_LIMIT_RECURSION);
1764    
1765        len = 0;
1766        for (;;)
1767          {
1768          if (extend_inputline(infile, buffer + len, "data> ") == NULL)
1769            {
1770            if (len > 0) break;
1771            done = 1;
1772            goto CONTINUE;
1773            }
1774          if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1775          len = (int)strlen((char *)buffer);
1776          if (buffer[len-1] == '\n') break;
1777          }
1778    
     len = (int)strlen((char *)buffer);  
1779      while (len > 0 && isspace(buffer[len-1])) len--;      while (len > 0 && isspace(buffer[len-1])) len--;
1780      buffer[len] = 0;      buffer[len] = 0;
1781      if (len == 0) break;      if (len == 0) break;
# Line 603  for (;;) Line 1783  for (;;)
1783      p = buffer;      p = buffer;
1784      while (isspace(*p)) p++;      while (isspace(*p)) p++;
1785    
1786      q = dbuffer;      bptr = q = dbuffer;
1787      while ((c = *p++) != 0)      while ((c = *p++) != 0)
1788        {        {
1789        int i = 0;        int i = 0;
1790        int n = 0;        int n = 0;
1791    
1792        if (c == '\\') switch ((c = *p++))        if (c == '\\') switch ((c = *p++))
1793          {          {
1794          case 'a': c =    7; break;          case 'a': c =    7; break;
# Line 624  for (;;) Line 1805  for (;;)
1805          c -= '0';          c -= '0';
1806          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
1807            c = c * 8 + *p++ - '0';            c = c * 8 + *p++ - '0';
1808    
1809    #if !defined NOUTF8
1810            if (use_utf8 && c > 255)
1811              {
1812              unsigned char buff8[8];
1813              int ii, utn;
1814              utn = ord2utf8(c, buff8);
1815              for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1816              c = buff8[ii];   /* Last byte */
1817              }
1818    #endif
1819          break;          break;
1820    
1821          case 'x':          case 'x':
1822    
1823            /* Handle \x{..} specially - new Perl thing for utf8 */
1824    
1825    #if !defined NOUTF8
1826            if (*p == '{')
1827              {
1828              unsigned char *pt = p;
1829              c = 0;
1830              while (isxdigit(*(++pt)))
1831                c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'W');
1832              if (*pt == '}')
1833                {
1834                unsigned char buff8[8];
1835                int ii, utn;
1836                if (use_utf8)
1837                  {
1838                  utn = ord2utf8(c, buff8);
1839                  for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1840                  c = buff8[ii];   /* Last byte */
1841                  }
1842                else
1843                 {
1844                 if (c > 255)
1845                   fprintf(outfile, "** Character \\x{%x} is greater than 255 and "
1846                     "UTF-8 mode is not enabled.\n"
1847                     "** Truncation will probably give the wrong result.\n", c);
1848                 }
1849                p = pt + 1;
1850                break;
1851                }
1852              /* Not correct form; fall through */
1853              }
1854    #endif
1855    
1856            /* Ordinary \x */
1857    
1858          c = 0;          c = 0;
1859          while (i++ < 2 && isxdigit(*p))          while (i++ < 2 && isxdigit(*p))
1860            {            {
# Line 635  for (;;) Line 1863  for (;;)
1863            }            }
1864          break;          break;
1865    
1866          case 0:   /* Allows for an empty line */          case 0:   /* \ followed by EOF allows for an empty line */
1867          p--;          p--;
1868          continue;          continue;
1869    
1870            case '>':
1871            while(isdigit(*p)) start_offset = start_offset * 10 + *p++ - '0';
1872            continue;
1873    
1874          case 'A':  /* Option setting */          case 'A':  /* Option setting */
1875          options |= PCRE_ANCHORED;          options |= PCRE_ANCHORED;
1876          continue;          continue;
# Line 647  for (;;) Line 1879  for (;;)
1879          options |= PCRE_NOTBOL;          options |= PCRE_NOTBOL;
1880          continue;          continue;
1881    
1882          case 'E':          case 'C':
1883          options |= PCRE_DOLLAR_ENDONLY;          if (isdigit(*p))    /* Set copy string */
1884              {
1885              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1886              copystrings |= 1 << n;
1887              }
1888            else if (isalnum(*p))
1889              {
1890              uschar *npp = copynamesptr;
1891              while (isalnum(*p)) *npp++ = *p++;
1892              *npp++ = 0;
1893              *npp = 0;
1894              n = pcre_get_stringnumber(re, (char *)copynamesptr);
1895              if (n < 0)
1896                fprintf(outfile, "no parentheses with name \"%s\"\n", copynamesptr);
1897              copynamesptr = npp;
1898              }
1899            else if (*p == '+')
1900              {
1901              callout_extra = 1;
1902              p++;
1903              }
1904            else if (*p == '-')
1905              {
1906              pcre_callout = NULL;
1907              p++;
1908              }
1909            else if (*p == '!')
1910              {
1911              callout_fail_id = 0;
1912              p++;
1913              while(isdigit(*p))
1914                callout_fail_id = callout_fail_id * 10 + *p++ - '0';
1915              callout_fail_count = 0;
1916              if (*p == '!')
1917                {
1918                p++;
1919                while(isdigit(*p))
1920                  callout_fail_count = callout_fail_count * 10 + *p++ - '0';
1921                }
1922              }
1923            else if (*p == '*')
1924              {
1925              int sign = 1;
1926              callout_data = 0;
1927              if (*(++p) == '-') { sign = -1; p++; }
1928              while(isdigit(*p))
1929                callout_data = callout_data * 10 + *p++ - '0';
1930              callout_data *= sign;
1931              callout_data_set = 1;
1932              }
1933            continue;
1934    
1935    #if !defined NODFA
1936            case 'D':
1937    #if !defined NOPOSIX
1938            if (posix || do_posix)
1939              printf("** Can't use dfa matching in POSIX mode: \\D ignored\n");
1940            else
1941    #endif
1942              use_dfa = 1;
1943            continue;
1944    
1945            case 'F':
1946            options |= PCRE_DFA_SHORTEST;
1947            continue;
1948    #endif
1949    
1950            case 'G':
1951            if (isdigit(*p))
1952              {
1953              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1954              getstrings |= 1 << n;
1955              }
1956            else if (isalnum(*p))
1957              {
1958              uschar *npp = getnamesptr;
1959              while (isalnum(*p)) *npp++ = *p++;
1960              *npp++ = 0;
1961              *npp = 0;
1962              n = pcre_get_stringnumber(re, (char *)getnamesptr);
1963              if (n < 0)
1964                fprintf(outfile, "no parentheses with name \"%s\"\n", getnamesptr);
1965              getnamesptr = npp;
1966              }
1967          continue;          continue;
1968    
1969          case 'I':          case 'L':
1970          options |= PCRE_CASELESS;          getlist = 1;
1971          continue;          continue;
1972    
1973          case 'M':          case 'M':
1974          options |= PCRE_MULTILINE;          find_match_limit = 1;
1975          continue;          continue;
1976    
1977          case 'S':          case 'N':
1978          options |= PCRE_DOTALL;          if ((options & PCRE_NOTEMPTY) != 0)
1979              options = (options & ~PCRE_NOTEMPTY) | PCRE_NOTEMPTY_ATSTART;
1980            else
1981              options |= PCRE_NOTEMPTY;
1982          continue;          continue;
1983    
1984          case 'O':          case 'O':
1985          while(isdigit(*p)) n = n * 10 + *p++ - '0';          while(isdigit(*p)) n = n * 10 + *p++ - '0';
1986          if (n <= (int)(sizeof(offsets)/sizeof(int))) size_offsets = n;          if (n > size_offsets_max)
1987              {
1988              size_offsets_max = n;
1989              free(offsets);
1990              use_offsets = offsets = (int *)malloc(size_offsets_max * sizeof(int));
1991              if (offsets == NULL)
1992                {
1993                printf("** Failed to get %d bytes of memory for offsets vector\n",
1994                  (int)(size_offsets_max * sizeof(int)));
1995                yield = 1;
1996                goto EXIT;
1997                }
1998              }
1999            use_size_offsets = n;
2000            if (n == 0) use_offsets = NULL;   /* Ensures it can't write to it */
2001            continue;
2002    
2003            case 'P':
2004            options |= ((options & PCRE_PARTIAL_SOFT) == 0)?
2005              PCRE_PARTIAL_SOFT : PCRE_PARTIAL_HARD;
2006            continue;
2007    
2008            case 'Q':
2009            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2010            if (extra == NULL)
2011              {
2012              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2013              extra->flags = 0;
2014              }
2015            extra->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
2016            extra->match_limit_recursion = n;
2017            continue;
2018    
2019            case 'q':
2020            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2021            if (extra == NULL)
2022              {
2023              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2024              extra->flags = 0;
2025              }
2026            extra->flags |= PCRE_EXTRA_MATCH_LIMIT;
2027            extra->match_limit = n;
2028            continue;
2029    
2030    #if !defined NODFA
2031            case 'R':
2032            options |= PCRE_DFA_RESTART;
2033            continue;
2034    #endif
2035    
2036            case 'S':
2037            show_malloc = 1;
2038            continue;
2039    
2040            case 'Y':
2041            options |= PCRE_NO_START_OPTIMIZE;
2042          continue;          continue;
2043    
2044          case 'Z':          case 'Z':
2045          options |= PCRE_NOTEOL;          options |= PCRE_NOTEOL;
2046          continue;          continue;
2047    
2048            case '?':
2049            options |= PCRE_NO_UTF8_CHECK;
2050            continue;
2051    
2052            case '<':
2053              {
2054              int x = check_newline(p, outfile);
2055              if (x == 0) goto NEXT_DATA;
2056              options |= x;
2057              while (*p++ != '>');
2058              }
2059            continue;
2060          }          }
2061        *q++ = c;        *q++ = c;
2062        }        }
2063      *q = 0;      *q = 0;
2064      len = q - dbuffer;      len = q - dbuffer;
2065    
2066        /* Move the data to the end of the buffer so that a read over the end of
2067        the buffer will be seen by valgrind, even if it doesn't cause a crash. If
2068        we are using the POSIX interface, we must include the terminating zero. */
2069    
2070    #if !defined NOPOSIX
2071        if (posix || do_posix)
2072          {
2073          memmove(bptr + buffer_size - len - 1, bptr, len + 1);
2074          bptr += buffer_size - len - 1;
2075          }
2076        else
2077    #endif
2078          {
2079          memmove(bptr + buffer_size - len, bptr, len);
2080          bptr += buffer_size - len;
2081          }
2082    
2083        if ((all_use_dfa || use_dfa) && find_match_limit)
2084          {
2085          printf("**Match limit not relevant for DFA matching: ignored\n");
2086          find_match_limit = 0;
2087          }
2088    
2089      /* Handle matching via the POSIX interface, which does not      /* Handle matching via the POSIX interface, which does not
2090      support timing. */      support timing or playing with the match limit or callout data. */
2091    
2092    #if !defined NOPOSIX
2093      if (posix || do_posix)      if (posix || do_posix)
2094        {        {
2095        int rc;        int rc;
2096        int eflags = 0;        int eflags = 0;
2097        regmatch_t pmatch[30];        regmatch_t *pmatch = NULL;
2098          if (use_size_offsets > 0)
2099            pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * use_size_offsets);
2100        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
2101        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
2102          if ((options & PCRE_NOTEMPTY) != 0) eflags |= REG_NOTEMPTY;
2103    
2104        rc = regexec(&preg, (char *)dbuffer, sizeof(pmatch)/sizeof(regmatch_t),        rc = regexec(&preg, (const char *)bptr, use_size_offsets, pmatch, eflags);
         pmatch, eflags);  
2105    
2106        if (rc != 0)        if (rc != 0)
2107          {          {
2108          (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));          (void)regerror(rc, &preg, (char *)buffer, buffer_size);
2109          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
2110          }          }
2111          else if ((((const pcre *)preg.re_pcre)->options & PCRE_NO_AUTO_CAPTURE)
2112                  != 0)
2113            {
2114            fprintf(outfile, "Matched with REG_NOSUB\n");
2115            }
2116        else        else
2117          {          {
2118          size_t i;          size_t i;
2119          for (i = 0; i < sizeof(pmatch)/sizeof(regmatch_t); i++)          for (i = 0; i < (size_t)use_size_offsets; i++)
2120            {            {
2121            if (pmatch[i].rm_so >= 0)            if (pmatch[i].rm_so >= 0)
2122              {              {
2123              fprintf(outfile, "%2d: ", i);              fprintf(outfile, "%2d: ", (int)i);
2124              pchars(dbuffer + pmatch[i].rm_so,              (void)pchars(dbuffer + pmatch[i].rm_so,
2125                pmatch[i].rm_eo - pmatch[i].rm_so);                pmatch[i].rm_eo - pmatch[i].rm_so, outfile);
2126              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2127                if (i == 0 && do_showrest)
2128                  {
2129                  fprintf(outfile, " 0+ ");
2130                  (void)pchars(dbuffer + pmatch[i].rm_eo, len - pmatch[i].rm_eo,
2131                    outfile);
2132                  fprintf(outfile, "\n");
2133                  }
2134              }              }
2135            }            }
2136          }          }
2137          free(pmatch);
2138        }        }
2139    
2140      /* Handle matching via the native interface */      /* Handle matching via the native interface - repeats for /g and /G */
2141    
2142      else      else
2143    #endif  /* !defined NOPOSIX */
2144    
2145        for (;; gmatched++)    /* Loop for /g or /G */
2146        {        {
2147        if (timeit)        if (timeitm > 0)
2148          {          {
2149          register int i;          register int i;
2150          clock_t time_taken;          clock_t time_taken;
2151          clock_t start_time = clock();          clock_t start_time = clock();
2152          for (i = 0; i < 4000; i++)  
2153            count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,  #if !defined NODFA
2154              size_offsets);          if (all_use_dfa || use_dfa)
2155              {
2156              int workspace[1000];
2157              for (i = 0; i < timeitm; i++)
2158                count = pcre_dfa_exec(re, extra, (char *)bptr, len, start_offset,
2159                  options | g_notempty, use_offsets, use_size_offsets, workspace,
2160                  sizeof(workspace)/sizeof(int));
2161              }
2162            else
2163    #endif
2164    
2165            for (i = 0; i < timeitm; i++)
2166              count = pcre_exec(re, extra, (char *)bptr, len,
2167                start_offset, options | g_notempty, use_offsets, use_size_offsets);
2168    
2169          time_taken = clock() - start_time;          time_taken = clock() - start_time;
2170          fprintf(outfile, "Execute time %.2f milliseconds\n",          fprintf(outfile, "Execute time %.4f milliseconds\n",
2171            ((double)time_taken)/(4 * CLOCKS_PER_SEC));            (((double)time_taken * 1000.0) / (double)timeitm) /
2172                (double)CLOCKS_PER_SEC);
2173            }
2174    
2175          /* If find_match_limit is set, we want to do repeated matches with
2176          varying limits in order to find the minimum value for the match limit and
2177          for the recursion limit. */
2178    
2179          if (find_match_limit)
2180            {
2181            if (extra == NULL)
2182              {
2183              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2184              extra->flags = 0;
2185              }
2186    
2187            (void)check_match_limit(re, extra, bptr, len, start_offset,
2188              options|g_notempty, use_offsets, use_size_offsets,
2189              PCRE_EXTRA_MATCH_LIMIT, &(extra->match_limit),
2190              PCRE_ERROR_MATCHLIMIT, "match()");
2191    
2192            count = check_match_limit(re, extra, bptr, len, start_offset,
2193              options|g_notempty, use_offsets, use_size_offsets,
2194              PCRE_EXTRA_MATCH_LIMIT_RECURSION, &(extra->match_limit_recursion),
2195              PCRE_ERROR_RECURSIONLIMIT, "match() recursion");
2196            }
2197    
2198          /* If callout_data is set, use the interface with additional data */
2199    
2200          else if (callout_data_set)
2201            {
2202            if (extra == NULL)
2203              {
2204              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2205              extra->flags = 0;
2206              }
2207            extra->flags |= PCRE_EXTRA_CALLOUT_DATA;
2208            extra->callout_data = &callout_data;
2209            count = pcre_exec(re, extra, (char *)bptr, len, start_offset,
2210              options | g_notempty, use_offsets, use_size_offsets);
2211            extra->flags &= ~PCRE_EXTRA_CALLOUT_DATA;
2212          }          }
2213    
2214        count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,        /* The normal case is just to do the match once, with the default
2215          size_offsets);        value of match_limit. */
2216    
2217    #if !defined NODFA
2218          else if (all_use_dfa || use_dfa)
2219            {
2220            int workspace[1000];
2221            count = pcre_dfa_exec(re, extra, (char *)bptr, len, start_offset,
2222              options | g_notempty, use_offsets, use_size_offsets, workspace,
2223              sizeof(workspace)/sizeof(int));
2224            if (count == 0)
2225              {
2226              fprintf(outfile, "Matched, but too many subsidiary matches\n");
2227              count = use_size_offsets/2;
2228              }
2229            }
2230    #endif
2231    
2232        if (count == 0)        else
2233          {          {
2234          fprintf(outfile, "Matched, but too many substrings\n");          count = pcre_exec(re, extra, (char *)bptr, len,
2235          count = size_offsets/2;            start_offset, options | g_notempty, use_offsets, use_size_offsets);
2236            if (count == 0)
2237              {
2238              fprintf(outfile, "Matched, but too many substrings\n");
2239              count = use_size_offsets/3;
2240              }
2241          }          }
2242    
2243          /* Matched */
2244    
2245        if (count >= 0)        if (count >= 0)
2246          {          {
2247          int i;          int i, maxcount;
2248          count *= 2;  
2249          for (i = 0; i < count; i += 2)  #if !defined NODFA
2250            if (all_use_dfa || use_dfa) maxcount = use_size_offsets/2; else
2251    #endif
2252              maxcount = use_size_offsets/3;
2253    
2254            /* This is a check against a lunatic return value. */
2255    
2256            if (count > maxcount)
2257              {
2258              fprintf(outfile,
2259                "** PCRE error: returned count %d is too big for offset size %d\n",
2260                count, use_size_offsets);
2261              count = use_size_offsets/3;
2262              if (do_g || do_G)
2263                {
2264                fprintf(outfile, "** /%c loop abandoned\n", do_g? 'g' : 'G');
2265                do_g = do_G = FALSE;        /* Break g/G loop */
2266                }
2267              }
2268    
2269            for (i = 0; i < count * 2; i += 2)
2270            {            {
2271            if (offsets[i] < 0)            if (use_offsets[i] < 0)
2272              fprintf(outfile, "%2d: <unset>\n", i/2);              fprintf(outfile, "%2d: <unset>\n", i/2);
2273            else            else
2274              {              {
2275              fprintf(outfile, "%2d: ", i/2);              fprintf(outfile, "%2d: ", i/2);
2276              pchars(dbuffer + offsets[i], offsets[i+1] - offsets[i]);              (void)pchars(bptr + use_offsets[i],
2277                  use_offsets[i+1] - use_offsets[i], outfile);
2278              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2279                if (i == 0)
2280                  {
2281                  if (do_showrest)
2282                    {
2283                    fprintf(outfile, " 0+ ");
2284                    (void)pchars(bptr + use_offsets[i+1], len - use_offsets[i+1],
2285                      outfile);
2286                    fprintf(outfile, "\n");
2287                    }
2288                  }
2289                }
2290              }
2291    
2292            for (i = 0; i < 32; i++)
2293              {
2294              if ((copystrings & (1 << i)) != 0)
2295                {
2296                char copybuffer[256];
2297                int rc = pcre_copy_substring((char *)bptr, use_offsets, count,
2298                  i, copybuffer, sizeof(copybuffer));
2299                if (rc < 0)
2300                  fprintf(outfile, "copy substring %d failed %d\n", i, rc);
2301                else
2302                  fprintf(outfile, "%2dC %s (%d)\n", i, copybuffer, rc);
2303                }
2304              }
2305    
2306            for (copynamesptr = copynames;
2307                 *copynamesptr != 0;
2308                 copynamesptr += (int)strlen((char*)copynamesptr) + 1)
2309              {
2310              char copybuffer[256];
2311              int rc = pcre_copy_named_substring(re, (char *)bptr, use_offsets,
2312                count, (char *)copynamesptr, copybuffer, sizeof(copybuffer));
2313              if (rc < 0)
2314                fprintf(outfile, "copy substring %s failed %d\n", copynamesptr, rc);
2315              else
2316                fprintf(outfile, "  C %s (%d) %s\n", copybuffer, rc, copynamesptr);
2317              }
2318    
2319            for (i = 0; i < 32; i++)
2320              {
2321              if ((getstrings & (1 << i)) != 0)
2322                {
2323                const char *substring;
2324                int rc = pcre_get_substring((char *)bptr, use_offsets, count,
2325                  i, &substring);
2326                if (rc < 0)
2327                  fprintf(outfile, "get substring %d failed %d\n", i, rc);
2328                else
2329                  {
2330                  fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
2331                  pcre_free_substring(substring);
2332                  }
2333                }
2334              }
2335    
2336            for (getnamesptr = getnames;
2337                 *getnamesptr != 0;
2338                 getnamesptr += (int)strlen((char*)getnamesptr) + 1)
2339              {
2340              const char *substring;
2341              int rc = pcre_get_named_substring(re, (char *)bptr, use_offsets,
2342                count, (char *)getnamesptr, &substring);
2343              if (rc < 0)
2344                fprintf(outfile, "copy substring %s failed %d\n", getnamesptr, rc);
2345              else
2346                {
2347                fprintf(outfile, "  G %s (%d) %s\n", substring, rc, getnamesptr);
2348                pcre_free_substring(substring);
2349              }              }
2350            }            }
2351    
2352            if (getlist)
2353              {
2354              const char **stringlist;
2355              int rc = pcre_get_substring_list((char *)bptr, use_offsets, count,
2356                &stringlist);
2357              if (rc < 0)
2358                fprintf(outfile, "get substring list failed %d\n", rc);
2359              else
2360                {
2361                for (i = 0; i < count; i++)
2362                  fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
2363                if (stringlist[i] != NULL)
2364                  fprintf(outfile, "string list not terminated by NULL\n");
2365                /* free((void *)stringlist); */
2366                pcre_free_substring_list(stringlist);
2367                }
2368              }
2369            }
2370    
2371          /* There was a partial match */
2372    
2373          else if (count == PCRE_ERROR_PARTIAL)
2374            {
2375            fprintf(outfile, "Partial match");
2376            if (use_size_offsets > 1)
2377              {
2378              fprintf(outfile, ": ");
2379              pchars(bptr + use_offsets[0], use_offsets[1] - use_offsets[0],
2380                outfile);
2381              }
2382            fprintf(outfile, "\n");
2383            break;  /* Out of the /g loop */
2384          }          }
2385    
2386          /* Failed to match. If this is a /g or /G loop and we previously set
2387          g_notempty after a null match, this is not necessarily the end. We want
2388          to advance the start offset, and continue. We won't be at the end of the
2389          string - that was checked before setting g_notempty.
2390    
2391          Complication arises in the case when the newline option is "any" or
2392          "anycrlf". If the previous match was at the end of a line terminated by
2393          CRLF, an advance of one character just passes the \r, whereas we should
2394          prefer the longer newline sequence, as does the code in pcre_exec().
2395          Fudge the offset value to achieve this.
2396    
2397          Otherwise, in the case of UTF-8 matching, the advance must be one
2398          character, not one byte. */
2399    
2400        else        else
2401          {          {
2402          if (count == -1) fprintf(outfile, "No match\n");          if (g_notempty != 0)
2403              {
2404              int onechar = 1;
2405              unsigned int obits = ((real_pcre *)re)->options;
2406              use_offsets[0] = start_offset;
2407              if ((obits & PCRE_NEWLINE_BITS) == 0)
2408                {
2409                int d;
2410                (void)pcre_config(PCRE_CONFIG_NEWLINE, &d);
2411                /* Note that these values are always the ASCII ones, even in
2412                EBCDIC environments. CR = 13, NL = 10. */
2413                obits = (d == 13)? PCRE_NEWLINE_CR :
2414                        (d == 10)? PCRE_NEWLINE_LF :
2415                        (d == (13<<8 | 10))? PCRE_NEWLINE_CRLF :
2416                        (d == -2)? PCRE_NEWLINE_ANYCRLF :
2417                        (d == -1)? PCRE_NEWLINE_ANY : 0;
2418                }
2419              if (((obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANY ||
2420                   (obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANYCRLF)
2421                  &&
2422                  start_offset < len - 1 &&
2423                  bptr[start_offset] == '\r' &&
2424                  bptr[start_offset+1] == '\n')
2425                onechar++;
2426              else if (use_utf8)
2427                {
2428                while (start_offset + onechar < len)
2429                  {
2430                  int tb = bptr[start_offset+onechar];
2431                  if (tb <= 127) break;
2432                  tb &= 0xc0;
2433                  if (tb != 0 && tb != 0xc0) onechar++;
2434                  }
2435                }
2436              use_offsets[1] = start_offset + onechar;
2437              }
2438            else
2439              {
2440              if (count == PCRE_ERROR_NOMATCH)
2441                {
2442                if (gmatched == 0) fprintf(outfile, "No match\n");
2443                }
2444            else fprintf(outfile, "Error %d\n", count);            else fprintf(outfile, "Error %d\n", count);
2445              break;  /* Out of the /g loop */
2446              }
2447          }          }
       }  
     }  
2448    
2449          /* If not /g or /G we are done */
2450    
2451          if (!do_g && !do_G) break;
2452    
2453          /* If we have matched an empty string, first check to see if we are at
2454          the end of the subject. If so, the /g loop is over. Otherwise, mimic what
2455          Perl's /g options does. This turns out to be rather cunning. First we set
2456          PCRE_NOTEMPTY_ATSTART and PCRE_ANCHORED and try the match again at the
2457          same point. If this fails (picked up above) we advance to the next
2458          character. */
2459    
2460          g_notempty = 0;
2461    
2462          if (use_offsets[0] == use_offsets[1])
2463            {
2464            if (use_offsets[0] == len) break;
2465            g_notempty = PCRE_NOTEMPTY_ATSTART | PCRE_ANCHORED;
2466            }
2467    
2468          /* For /g, update the start offset, leaving the rest alone */
2469    
2470          if (do_g) start_offset = use_offsets[1];
2471    
2472          /* For /G, update the pointer and length */
2473    
2474          else
2475            {
2476            bptr += use_offsets[1];
2477            len -= use_offsets[1];
2478            }
2479          }  /* End of loop for /g and /G */
2480    
2481        NEXT_DATA: continue;
2482        }    /* End of loop for data lines */
2483    
2484      CONTINUE:
2485    
2486    #if !defined NOPOSIX
2487    if (posix || do_posix) regfree(&preg);    if (posix || do_posix) regfree(&preg);
2488    if (re != NULL) free(re);  #endif
2489    if (extra != NULL) free(extra);  
2490      if (re != NULL) new_free(re);
2491      if (extra != NULL) new_free(extra);
2492      if (tables != NULL)
2493        {
2494        new_free((void *)tables);
2495        setlocale(LC_CTYPE, "C");
2496        locale_set = 0;
2497        }
2498    }    }
2499    
2500  END_OFF:  if (infile == stdin) fprintf(outfile, "\n");
2501  fprintf(outfile, "\n");  
2502  return 0;  EXIT:
2503    
2504    if (infile != NULL && infile != stdin) fclose(infile);
2505    if (outfile != NULL && outfile != stdout) fclose(outfile);
2506    
2507    free(buffer);
2508    free(dbuffer);
2509    free(pbuffer);
2510    free(offsets);
2511    
2512    return yield;
2513  }  }
2514    
2515  /* End */  /* End of pcretest.c */

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