/[pcre]/code/trunk/pcretest.c
ViewVC logotype

Diff of /code/trunk/pcretest.c

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 27 by nigel, Sat Feb 24 21:38:49 2007 UTC revision 412 by ph10, Sat Apr 11 10:34:37 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>  #include <locale.h>
49    #include <errno.h>
50    
51    #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    
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  /* Use the internal info for displaying the results of pcre_study(). */  /* 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  #include "internal.h"  #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 22  Line 162 
162  #endif  #endif
163  #endif  #endif
164    
165  #define LOOPREPEAT 20000  /* 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", "\\Z", "\\z",  want to automatically expand it so as to be able to handle extremely large
200    "Opt", "^", "$", "Any", "chars", "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",  Arguments:
207    "AssertB", "AssertB not", "Reverse", "Once", "Cond", "Cref",    f            the file to read
208    "Brazero", "Braminzero", "Bra"    start        where in buffer to start (this *must* be within buffer)
209  };    prompt       for stdin or readline()
210    
211    Returns:       pointer to the start of new data
212  static void print_internals(pcre *re, FILE *outfile)                 could be a copy of start, or could be moved
213  {                 NULL if no data read and EOF reached
214  unsigned char *code = ((real_pcre *)re)->code;  */
   
 fprintf(outfile, "------------------------------------------------------------------\n");  
   
 for(;;)  
   {  
   int c;  
   int charlength;  
   
   fprintf(outfile, "%3d ", (int)(code - ((real_pcre *)re)->code));  
   
   if (*code >= OP_BRA)  
     {  
     fprintf(outfile, "%3d Bra %d", (code[1] << 8) + code[2], *code - OP_BRA);  
     code += 2;  
     }  
   
   else switch(*code)  
     {  
     case OP_END:  
     fprintf(outfile, "    %s\n", OP_names[*code]);  
     fprintf(outfile, "------------------------------------------------------------------\n");  
     return;  
   
     case OP_OPT:  
     fprintf(outfile, " %.2x %s", code[1], OP_names[*code]);  
     code++;  
     break;  
   
     case OP_COND:  
     fprintf(outfile, "%3d Cond", (code[1] << 8) + code[2]);  
     code += 2;  
     break;  
   
     case OP_CREF:  
     fprintf(outfile, " %.2d %s", code[1], OP_names[*code]);  
     code++;  
     break;  
   
     case OP_CHARS:  
     charlength = *(++code);  
     fprintf(outfile, "%3d ", charlength);  
     while (charlength-- > 0)  
       if (isprint(c = *(++code))) fprintf(outfile, "%c", c);  
         else fprintf(outfile, "\\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_ASSERTBACK:  
     case OP_ASSERTBACK_NOT:  
     case OP_ONCE:  
     fprintf(outfile, "%3d %s", (code[1] << 8) + code[2], OP_names[*code]);  
     code += 2;  
     break;  
   
     case OP_REVERSE:  
     fprintf(outfile, "%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)  
       fprintf(outfile, "    %s", OP_names[code[1]]);  
     else if (isprint(c = code[1])) fprintf(outfile, "    %c", c);  
       else fprintf(outfile, "    \\x%02x", c);  
     fprintf(outfile, "%s", OP_names[*code++]);  
     break;  
   
     case OP_EXACT:  
     case OP_UPTO:  
     case OP_MINUPTO:  
     if (isprint(c = code[3])) fprintf(outfile, "    %c{", c);  
       else fprintf(outfile, "    \\x%02x{", c);  
     if (*code != OP_EXACT) fprintf(outfile, ",");  
     fprintf(outfile, "%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_MINUPTO) fprintf(outfile, "?");  
     code += 3;  
     break;  
   
     case OP_TYPEEXACT:  
     case OP_TYPEUPTO:  
     case OP_TYPEMINUPTO:  
     fprintf(outfile, "    %s{", OP_names[code[3]]);  
     if (*code != OP_TYPEEXACT) fprintf(outfile, "0,");  
     fprintf(outfile, "%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_TYPEMINUPTO) fprintf(outfile, "?");  
     code += 3;  
     break;  
   
     case OP_NOT:  
     if (isprint(c = *(++code))) fprintf(outfile, "    [^%c]", c);  
       else fprintf(outfile, "    [^\\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])) fprintf(outfile, "    [^%c]", c);  
       else fprintf(outfile, "    [^\\x%02x]", c);  
     fprintf(outfile, "%s", OP_names[*code++]);  
     break;  
   
     case OP_NOTEXACT:  
     case OP_NOTUPTO:  
     case OP_NOTMINUPTO:  
     if (isprint(c = code[3])) fprintf(outfile, "    [^%c]{", c);  
       else fprintf(outfile, "    [^\\x%02x]{", c);  
     if (*code != OP_NOTEXACT) fprintf(outfile, ",");  
     fprintf(outfile, "%d}", (code[1] << 8) + code[2]);  
     if (*code == OP_NOTMINUPTO) fprintf(outfile, "?");  
     code += 3;  
     break;  
   
     case OP_REF:  
     fprintf(outfile, "    \\%d", *(++code));  
     code++;  
     goto CLASS_REF_REPEAT;  
   
     case OP_CLASS:  
       {  
       int i, min, max;  
       code++;  
       fprintf(outfile, "    [");  
   
       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 == ']') fprintf(outfile, "\\");  
           if (isprint(i)) fprintf(outfile, "%c", i); else fprintf(outfile, "\\x%02x", i);  
           if (--j > i)  
             {  
             fprintf(outfile, "-");  
             if (j == '-' || j == ']') fprintf(outfile, "\\");  
             if (isprint(j)) fprintf(outfile, "%c", j); else fprintf(outfile, "\\x%02x", j);  
             }  
           i = j;  
           }  
         }  
       fprintf(outfile, "]");  
       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:  
         fprintf(outfile, "%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) fprintf(outfile, "{%d,}", min);  
         else fprintf(outfile, "{%d,%d}", min, max);  
         if (*code == OP_CRMINRANGE) fprintf(outfile, "?");  
         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        else
248    #endif
249    
250        /* Read the next line by normal means, prompting if the file is stdin. */
251    
252          {
253          if (f == stdin) printf(prompt);
254          if (fgets((char *)here, rlen,  f) == NULL)
255            return (here == start)? NULL : start;
256          }
257    
258        dlen = (int)strlen((char *)here);
259        if (dlen > 0 && here[dlen - 1] == '\n') return start;
260        here += dlen;
261        }
262    
263      else
264        {
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        }        }
     break;  
275    
276      /* Anything else is just a one-node item */      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      default:      free(buffer);
285      fprintf(outfile, "    %s", OP_names[*code]);      free(dbuffer);
286      break;      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    
299    
300    code++;  
301    fprintf(outfile, "\n");  
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    
 /* Character string printing function. */  
428    
429  static void pchars(unsigned char *p, int length)  /*************************************************
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 289  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  int done = 0;  int done = 0;
838  unsigned char buffer[30000];  int all_use_dfa = 0;
839  unsigned char dbuffer[1024];  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    /* 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  /* Static so that new_malloc can use it. */  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      printf("Usage: pcretest [-d] [-i] [-p] [-s] [-t] [<input> [<output>]]\n");      usage();
975      printf("  -d   debug: show compiled code; implies -i\n"      yield = 1;
976             "  -i   show information about compiled pattern\n"      goto EXIT;
            "  -p   use POSIX interface\n"  
            "  -s   output store information\n"  
            "  -t   time compilation and execution\n");  
     return 1;  
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 regex if stdin */  /* Heading line unless quiet, then prompt for first regex if stdin */
1026    
1027  fprintf(outfile, "PCRE version %s\n\n", pcre_version());  if (!quiet) fprintf(outfile, "PCRE version %s\n\n", pcre_version());
1028    
1029  /* Main loop */  /* Main loop */
1030    
# Line 362  while (!done) Line 1032  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;
1038      int do_posix = 0;
1039    #endif
1040    
1041    const char *error;    const char *error;
1042    unsigned char *p, *pp, *ppp;    unsigned char *p, *pp, *ppp;
1043    unsigned const char *tables = NULL;    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;    int do_study = 0;
1048    int do_debug = debug;    int do_debug = debug;
1049      int do_G = 0;
1050      int do_g = 0;
1051    int do_showinfo = showinfo;    int do_showinfo = showinfo;
1052    int do_posix = 0;    int do_showrest = 0;
1053    int erroroffset, len, delimiter;    int do_flip = 0;
1054      int erroroffset, len, delimiter, poffset;
1055    
1056    if (infile == stdin) printf("  re> ");    use_utf8 = 0;
1057    if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) break;    debug_lengths = 1;
1058    
1059      if (extend_inputline(infile, buffer, "  re> ") == NULL) break;
1060    if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);    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        done = 1;        done = 1;
# Line 415  while (!done) Line 1181  while (!done)
1181      if (infile != stdin) fprintf(outfile, "%s", (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 'B': do_debug = 1; break;
1221          case 'C': options |= PCRE_AUTO_CALLOUT; break;
1222        case 'D': do_debug = do_showinfo = 1; break;        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;        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 'U': options |= PCRE_UNGREEDY; break;        case 'U': options |= PCRE_UNGREEDY; break;
1237        case 'X': options |= PCRE_EXTRA; break;        case 'X': options |= PCRE_EXTRA; break;
1238          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':        case 'L':
1243        ppp = pp;        ppp = pp;
1244        while (*ppp != '\n' && *ppp != ' ') ppp++;        /* 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;        *ppp = 0;
1248        if (setlocale(LC_CTYPE, (const char *)pp) == NULL)        if (setlocale(LC_CTYPE, (const char *)pp) == NULL)
1249          {          {
1250          fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);          fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);
1251          goto SKIP_DATA;          goto SKIP_DATA;
1252          }          }
1253          locale_set = 1;
1254        tables = pcre_maketables();        tables = pcre_maketables();
1255        pp = ppp;        pp = ppp;
1256        break;        break;
1257    
1258        case '\n': case ' ': break;        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;
# Line 465  while (!done) Line 1294  while (!done)
1294    timing, showing, or debugging options, nor the ability to pass over    timing, showing, or debugging options, nor the ability to pass over
1295    local character tables. */    local character tables. */
1296    
1297    #if !defined NOPOSIX
1298    if (posix || do_posix)    if (posix || do_posix)
1299      {      {
1300      int rc;      int rc;
1301      int cflags = 0;      int cflags = 0;
1302    
1303      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;      if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;
1304      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;      if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;
1305        if ((options & PCRE_DOTALL) != 0) cflags |= REG_DOTALL;
1306        if ((options & PCRE_NO_AUTO_CAPTURE) != 0) cflags |= REG_NOSUB;
1307        if ((options & PCRE_UTF8) != 0) cflags |= REG_UTF8;
1308    
1309      rc = regcomp(&preg, (char *)p, cflags);      rc = regcomp(&preg, (char *)p, cflags);
1310    
1311      /* Compilation failed; go back for another re, skipping to blank line      /* Compilation failed; go back for another re, skipping to blank line
# Line 478  while (!done) Line 1313  while (!done)
1313    
1314      if (rc != 0)      if (rc != 0)
1315        {        {
1316        (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));        (void)regerror(rc, &preg, (char *)buffer, buffer_size);
1317        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);        fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
1318        goto SKIP_DATA;        goto SKIP_DATA;
1319        }        }
# Line 487  while (!done) Line 1322  while (!done)
1322    /* Handle compiling via the native interface */    /* Handle compiling via the native interface */
1323    
1324    else    else
1325    #endif  /* !defined NOPOSIX */
1326    
1327      {      {
1328      if (timeit)      unsigned long int get_options;
1329    
1330        if (timeit > 0)
1331        {        {
1332        register int i;        register int i;
1333        clock_t time_taken;        clock_t time_taken;
1334        clock_t start_time = clock();        clock_t start_time = clock();
1335        for (i = 0; i < LOOPREPEAT; i++)        for (i = 0; i < timeit; i++)
1336          {          {
1337          re = pcre_compile((char *)p, options, &error, &erroroffset, tables);          re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
1338          if (re != NULL) free(re);          if (re != NULL) free(re);
1339          }          }
1340        time_taken = clock() - start_time;        time_taken = clock() - start_time;
1341        fprintf(outfile, "Compile time %.3f milliseconds\n",        fprintf(outfile, "Compile time %.4f milliseconds\n",
1342          ((double)time_taken * 1000.0) /          (((double)time_taken * 1000.0) / (double)timeit) /
1343          ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));            (double)CLOCKS_PER_SEC);
1344        }        }
1345    
1346      re = pcre_compile((char *)p, options, &error, &erroroffset, tables);      re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
# Line 517  while (!done) Line 1356  while (!done)
1356          {          {
1357          for (;;)          for (;;)
1358            {            {
1359            if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)            if (extend_inputline(infile, buffer, NULL) == NULL)
1360              {              {
1361              done = 1;              done = 1;
1362              goto CONTINUE;              goto CONTINUE;
# Line 530  while (!done) Line 1369  while (!done)
1369          }          }
1370        goto CONTINUE;        goto CONTINUE;
1371        }        }
1372    
1373        /* Compilation succeeded. It is now possible to set the UTF-8 option from
1374        within the regex; check for this so that we know how to process the data
1375        lines. */
1376    
1377        new_info(re, NULL, PCRE_INFO_OPTIONS, &get_options);
1378        if ((get_options & PCRE_UTF8) != 0) use_utf8 = 1;
1379    
1380        /* Print information if required. There are now two info-returning
1381        functions. The old one has a limited interface and returns only limited
1382        data. Check that it agrees with the newer one. */
1383    
1384        if (log_store)
1385          fprintf(outfile, "Memory allocation (code space): %d\n",
1386            (int)(gotten_store -
1387                  sizeof(real_pcre) -
1388                  ((real_pcre *)re)->name_count * ((real_pcre *)re)->name_entry_size));
1389    
1390      /* Compilation succeeded; print data if required */      /* Extract the size for possible writing before possibly flipping it,
1391        and remember the store that was got. */
1392    
1393      if (do_showinfo)      true_size = ((real_pcre *)re)->size;
1394        regex_gotten_store = gotten_store;
1395    
1396        /* If /S was present, study the regexp to generate additional info to
1397        help with the matching. */
1398    
1399        if (do_study)
1400        {        {
1401        int first_char, count;        if (timeit > 0)
1402            {
1403            register int i;
1404            clock_t time_taken;
1405            clock_t start_time = clock();
1406            for (i = 0; i < timeit; i++)
1407              extra = pcre_study(re, study_options, &error);
1408            time_taken = clock() - start_time;
1409            if (extra != NULL) free(extra);
1410            fprintf(outfile, "  Study time %.4f milliseconds\n",
1411              (((double)time_taken * 1000.0) / (double)timeit) /
1412                (double)CLOCKS_PER_SEC);
1413            }
1414          extra = pcre_study(re, study_options, &error);
1415          if (error != NULL)
1416            fprintf(outfile, "Failed to study: %s\n", error);
1417          else if (extra != NULL)
1418            true_study_size = ((pcre_study_data *)(extra->study_data))->size;
1419          }
1420    
1421        /* If the 'F' option was present, we flip the bytes of all the integer
1422        fields in the regex data block and the study block. This is to make it
1423        possible to test PCRE's handling of byte-flipped patterns, e.g. those
1424        compiled on a different architecture. */
1425    
1426        if (do_flip)
1427          {
1428          real_pcre *rre = (real_pcre *)re;
1429          rre->magic_number =
1430            byteflip(rre->magic_number, sizeof(rre->magic_number));
1431          rre->size = byteflip(rre->size, sizeof(rre->size));
1432          rre->options = byteflip(rre->options, sizeof(rre->options));
1433          rre->flags = (pcre_uint16)byteflip(rre->flags, sizeof(rre->flags));
1434          rre->top_bracket =
1435            (pcre_uint16)byteflip(rre->top_bracket, sizeof(rre->top_bracket));
1436          rre->top_backref =
1437            (pcre_uint16)byteflip(rre->top_backref, sizeof(rre->top_backref));
1438          rre->first_byte =
1439            (pcre_uint16)byteflip(rre->first_byte, sizeof(rre->first_byte));
1440          rre->req_byte =
1441            (pcre_uint16)byteflip(rre->req_byte, sizeof(rre->req_byte));
1442          rre->name_table_offset = (pcre_uint16)byteflip(rre->name_table_offset,
1443            sizeof(rre->name_table_offset));
1444          rre->name_entry_size = (pcre_uint16)byteflip(rre->name_entry_size,
1445            sizeof(rre->name_entry_size));
1446          rre->name_count = (pcre_uint16)byteflip(rre->name_count,
1447            sizeof(rre->name_count));
1448    
1449          if (extra != NULL)
1450            {
1451            pcre_study_data *rsd = (pcre_study_data *)(extra->study_data);
1452            rsd->size = byteflip(rsd->size, sizeof(rsd->size));
1453            rsd->options = byteflip(rsd->options, sizeof(rsd->options));
1454            }
1455          }
1456    
1457        /* Extract information from the compiled data if required */
1458    
1459        SHOW_INFO:
1460    
1461        if (do_debug) print_internals(re, outfile);      if (do_debug)
1462          {
1463          fprintf(outfile, "------------------------------------------------------------------\n");
1464          pcre_printint(re, outfile, debug_lengths);
1465          }
1466    
1467        /* We already have the options in get_options (see above) */
1468    
1469        count = pcre_info(re, &options, &first_char);      if (do_showinfo)
1470          {
1471          unsigned long int all_options;
1472    #if !defined NOINFOCHECK
1473          int old_first_char, old_options, old_count;
1474    #endif
1475          int count, backrefmax, first_char, need_char, okpartial, jchanged,
1476            hascrorlf;
1477          int nameentrysize, namecount;
1478          const uschar *nametable;
1479    
1480          new_info(re, NULL, PCRE_INFO_SIZE, &size);
1481          new_info(re, NULL, PCRE_INFO_CAPTURECOUNT, &count);
1482          new_info(re, NULL, PCRE_INFO_BACKREFMAX, &backrefmax);
1483          new_info(re, NULL, PCRE_INFO_FIRSTBYTE, &first_char);
1484          new_info(re, NULL, PCRE_INFO_LASTLITERAL, &need_char);
1485          new_info(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &nameentrysize);
1486          new_info(re, NULL, PCRE_INFO_NAMECOUNT, &namecount);
1487          new_info(re, NULL, PCRE_INFO_NAMETABLE, (void *)&nametable);
1488          new_info(re, NULL, PCRE_INFO_OKPARTIAL, &okpartial);
1489          new_info(re, NULL, PCRE_INFO_JCHANGED, &jchanged);
1490          new_info(re, NULL, PCRE_INFO_HASCRORLF, &hascrorlf);
1491    
1492    #if !defined NOINFOCHECK
1493          old_count = pcre_info(re, &old_options, &old_first_char);
1494        if (count < 0) fprintf(outfile,        if (count < 0) fprintf(outfile,
1495          "Error %d while reading info\n", count);          "Error %d from pcre_info()\n", count);
1496        else        else
1497          {          {
1498          fprintf(outfile, "Identifying subpattern count = %d\n", count);          if (old_count != count) fprintf(outfile,
1499          if (options == 0) fprintf(outfile, "No options\n");            "Count disagreement: pcre_fullinfo=%d pcre_info=%d\n", count,
1500            else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s\n",              old_count);
1501              ((options & PCRE_ANCHORED) != 0)? " anchored" : "",  
1502              ((options & PCRE_CASELESS) != 0)? " caseless" : "",          if (old_first_char != first_char) fprintf(outfile,
1503              ((options & PCRE_EXTENDED) != 0)? " extended" : "",            "First char disagreement: pcre_fullinfo=%d pcre_info=%d\n",
1504              ((options & PCRE_MULTILINE) != 0)? " multiline" : "",              first_char, old_first_char);
1505              ((options & PCRE_DOTALL) != 0)? " dotall" : "",  
1506              ((options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",          if (old_options != (int)get_options) fprintf(outfile,
1507              ((options & PCRE_EXTRA) != 0)? " extra" : "",            "Options disagreement: pcre_fullinfo=%ld pcre_info=%d\n",
1508              ((options & PCRE_UNGREEDY) != 0)? " ungreedy" : "");              get_options, old_options);
1509          if (first_char == -1)          }
1510            {  #endif
1511            fprintf(outfile, "First char at start or follows \\n\n");  
1512            }        if (size != regex_gotten_store) fprintf(outfile,
1513          else if (first_char < 0)          "Size disagreement: pcre_fullinfo=%d call to malloc for %d\n",
1514            (int)size, (int)regex_gotten_store);
1515    
1516          fprintf(outfile, "Capturing subpattern count = %d\n", count);
1517          if (backrefmax > 0)
1518            fprintf(outfile, "Max back reference = %d\n", backrefmax);
1519    
1520          if (namecount > 0)
1521            {
1522            fprintf(outfile, "Named capturing subpatterns:\n");
1523            while (namecount-- > 0)
1524            {            {
1525            fprintf(outfile, "No first char\n");            fprintf(outfile, "  %s %*s%3d\n", nametable + 2,
1526                nameentrysize - 3 - (int)strlen((char *)nametable + 2), "",
1527                GET2(nametable, 0));
1528              nametable += nameentrysize;
1529            }            }
1530            }
1531    
1532          if (!okpartial) fprintf(outfile, "Partial matching not supported\n");
1533          if (hascrorlf) fprintf(outfile, "Contains explicit CR or LF match\n");
1534    
1535          all_options = ((real_pcre *)re)->options;
1536          if (do_flip) all_options = byteflip(all_options, sizeof(all_options));
1537    
1538          if (get_options == 0) fprintf(outfile, "No options\n");
1539            else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
1540              ((get_options & PCRE_ANCHORED) != 0)? " anchored" : "",
1541              ((get_options & PCRE_CASELESS) != 0)? " caseless" : "",
1542              ((get_options & PCRE_EXTENDED) != 0)? " extended" : "",
1543              ((get_options & PCRE_MULTILINE) != 0)? " multiline" : "",
1544              ((get_options & PCRE_FIRSTLINE) != 0)? " firstline" : "",
1545              ((get_options & PCRE_DOTALL) != 0)? " dotall" : "",
1546              ((get_options & PCRE_BSR_ANYCRLF) != 0)? " bsr_anycrlf" : "",
1547              ((get_options & PCRE_BSR_UNICODE) != 0)? " bsr_unicode" : "",
1548              ((get_options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
1549              ((get_options & PCRE_EXTRA) != 0)? " extra" : "",
1550              ((get_options & PCRE_UNGREEDY) != 0)? " ungreedy" : "",
1551              ((get_options & PCRE_NO_AUTO_CAPTURE) != 0)? " no_auto_capture" : "",
1552              ((get_options & PCRE_UTF8) != 0)? " utf8" : "",
1553              ((get_options & PCRE_NO_UTF8_CHECK) != 0)? " no_utf8_check" : "",
1554              ((get_options & PCRE_DUPNAMES) != 0)? " dupnames" : "");
1555    
1556          if (jchanged) fprintf(outfile, "Duplicate name status changes\n");
1557    
1558          switch (get_options & PCRE_NEWLINE_BITS)
1559            {
1560            case PCRE_NEWLINE_CR:
1561            fprintf(outfile, "Forced newline sequence: CR\n");
1562            break;
1563    
1564            case PCRE_NEWLINE_LF:
1565            fprintf(outfile, "Forced newline sequence: LF\n");
1566            break;
1567    
1568            case PCRE_NEWLINE_CRLF:
1569            fprintf(outfile, "Forced newline sequence: CRLF\n");
1570            break;
1571    
1572            case PCRE_NEWLINE_ANYCRLF:
1573            fprintf(outfile, "Forced newline sequence: ANYCRLF\n");
1574            break;
1575    
1576            case PCRE_NEWLINE_ANY:
1577            fprintf(outfile, "Forced newline sequence: ANY\n");
1578            break;
1579    
1580            default:
1581            break;
1582            }
1583    
1584          if (first_char == -1)
1585            {
1586            fprintf(outfile, "First char at start or follows newline\n");
1587            }
1588          else if (first_char < 0)
1589            {
1590            fprintf(outfile, "No first char\n");
1591            }
1592          else
1593            {
1594            int ch = first_char & 255;
1595            const char *caseless = ((first_char & REQ_CASELESS) == 0)?
1596              "" : " (caseless)";
1597            if (PRINTHEX(ch))
1598              fprintf(outfile, "First char = \'%c\'%s\n", ch, caseless);
1599            else
1600              fprintf(outfile, "First char = %d%s\n", ch, caseless);
1601            }
1602    
1603          if (need_char < 0)
1604            {
1605            fprintf(outfile, "No need char\n");
1606            }
1607          else
1608            {
1609            int ch = need_char & 255;
1610            const char *caseless = ((need_char & REQ_CASELESS) == 0)?
1611              "" : " (caseless)";
1612            if (PRINTHEX(ch))
1613              fprintf(outfile, "Need char = \'%c\'%s\n", ch, caseless);
1614            else
1615              fprintf(outfile, "Need char = %d%s\n", ch, caseless);
1616            }
1617    
1618          /* Don't output study size; at present it is in any case a fixed
1619          value, but it varies, depending on the computer architecture, and
1620          so messes up the test suite. (And with the /F option, it might be
1621          flipped.) */
1622    
1623          if (do_study)
1624            {
1625            if (extra == NULL)
1626              fprintf(outfile, "Study returned NULL\n");
1627          else          else
1628            {            {
1629            if (isprint(first_char))            uschar *start_bits = NULL;
1630              fprintf(outfile, "First char = \'%c\'\n", first_char);            new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits);
1631    
1632              if (start_bits == NULL)
1633                fprintf(outfile, "No starting byte set\n");
1634            else            else
1635              fprintf(outfile, "First char = %d\n", first_char);              {
1636                int i;
1637                int c = 24;
1638                fprintf(outfile, "Starting byte set: ");
1639                for (i = 0; i < 256; i++)
1640                  {
1641                  if ((start_bits[i/8] & (1<<(i&7))) != 0)
1642                    {
1643                    if (c > 75)
1644                      {
1645                      fprintf(outfile, "\n  ");
1646                      c = 2;
1647                      }
1648                    if (PRINTHEX(i) && i != ' ')
1649                      {
1650                      fprintf(outfile, "%c ", i);
1651                      c += 2;
1652                      }
1653                    else
1654                      {
1655                      fprintf(outfile, "\\x%02x ", i);
1656                      c += 5;
1657                      }
1658                    }
1659                  }
1660                fprintf(outfile, "\n");
1661                }
1662            }            }
1663          }          }
1664        }        }
1665    
1666      /* 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
1667      help with the matching. */      that is all. The first 8 bytes of the file are the regex length and then
1668        the study length, in big-endian order. */
1669      if (do_study)  
1670        if (to_file != NULL)
1671        {        {
1672        if (timeit)        FILE *f = fopen((char *)to_file, "wb");
1673          if (f == NULL)
1674          {          {
1675          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 < LOOPREPEAT; i++)  
           extra = pcre_study(re, study_options, &error);  
         time_taken = clock() - start_time;  
         if (extra != NULL) free(extra);  
         fprintf(outfile, "  Study time %.3f milliseconds\n",  
           ((double)time_taken * 1000.0)/  
           ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));  
1676          }          }
1677          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 (do_showinfo)  
1678          {          {
1679          real_pcre_extra *xx = (real_pcre_extra *)extra;          uschar sbuf[8];
1680          if ((xx->options & PCRE_STUDY_MAPPED) == 0)          sbuf[0] = (uschar)((true_size >> 24) & 255);
1681            fprintf(outfile, "No starting character set\n");          sbuf[1] = (uschar)((true_size >> 16) & 255);
1682            sbuf[2] = (uschar)((true_size >>  8) & 255);
1683            sbuf[3] = (uschar)((true_size) & 255);
1684    
1685            sbuf[4] = (uschar)((true_study_size >> 24) & 255);
1686            sbuf[5] = (uschar)((true_study_size >> 16) & 255);
1687            sbuf[6] = (uschar)((true_study_size >>  8) & 255);
1688            sbuf[7] = (uschar)((true_study_size) & 255);
1689    
1690            if (fwrite(sbuf, 1, 8, f) < 8 ||
1691                fwrite(re, 1, true_size, f) < true_size)
1692              {
1693              fprintf(outfile, "Write error on %s: %s\n", to_file, strerror(errno));
1694              }
1695          else          else
1696            {            {
1697            int i;            fprintf(outfile, "Compiled regex written to %s\n", to_file);
1698            int c = 24;            if (extra != NULL)
           fprintf(outfile, "Starting character set: ");  
           for (i = 0; i < 256; i++)  
1699              {              {
1700              if ((xx->start_bits[i/8] & (1<<(i%8))) != 0)              if (fwrite(extra->study_data, 1, true_study_size, f) <
1701                    true_study_size)
1702                {                {
1703                if (c > 75)                fprintf(outfile, "Write error on %s: %s\n", to_file,
1704                  {                  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;  
                 }  
1705                }                }
1706                else fprintf(outfile, "Study data written to %s\n", to_file);
1707    
1708              }              }
           fprintf(outfile, "\n");  
1709            }            }
1710            fclose(f);
1711          }          }
1712    
1713          new_free(re);
1714          if (extra != NULL) new_free(extra);
1715          if (tables != NULL) new_free((void *)tables);
1716          continue;  /* With next regex */
1717        }        }
1718      }      }        /* End of non-POSIX compile */
1719    
1720    /* Read data lines and test them */    /* Read data lines and test them */
1721    
1722    for (;;)    for (;;)
1723      {      {
1724      unsigned char *q;      uschar *q;
1725        uschar *bptr;
1726        int *use_offsets = offsets;
1727        int use_size_offsets = size_offsets;
1728        int callout_data = 0;
1729        int callout_data_set = 0;
1730      int count, c;      int count, c;
1731      int offsets[45];      int copystrings = 0;
1732      int size_offsets = sizeof(offsets)/sizeof(int);      int find_match_limit = default_find_match_limit;
1733        int getstrings = 0;
1734        int getlist = 0;
1735        int gmatched = 0;
1736        int start_offset = 0;
1737        int g_notempty = 0;
1738        int use_dfa = 0;
1739    
1740      options = 0;      options = 0;
1741    
1742      if (infile == stdin) printf("  data> ");      *copynames = 0;
1743      if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)      *getnames = 0;
1744    
1745        copynamesptr = copynames;
1746        getnamesptr = getnames;
1747    
1748        pcre_callout = callout;
1749        first_callout = 1;
1750        callout_extra = 0;
1751        callout_count = 0;
1752        callout_fail_count = 999999;
1753        callout_fail_id = -1;
1754        show_malloc = 0;
1755    
1756        if (extra != NULL) extra->flags &=
1757          ~(PCRE_EXTRA_MATCH_LIMIT|PCRE_EXTRA_MATCH_LIMIT_RECURSION);
1758    
1759        len = 0;
1760        for (;;)
1761        {        {
1762        done = 1;        if (extend_inputline(infile, buffer + len, "data> ") == NULL)
1763        goto CONTINUE;          {
1764            if (len > 0) break;
1765            done = 1;
1766            goto CONTINUE;
1767            }
1768          if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
1769          len = (int)strlen((char *)buffer);
1770          if (buffer[len-1] == '\n') break;
1771        }        }
     if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);  
1772    
     len = (int)strlen((char *)buffer);  
1773      while (len > 0 && isspace(buffer[len-1])) len--;      while (len > 0 && isspace(buffer[len-1])) len--;
1774      buffer[len] = 0;      buffer[len] = 0;
1775      if (len == 0) break;      if (len == 0) break;
# Line 665  while (!done) Line 1777  while (!done)
1777      p = buffer;      p = buffer;
1778      while (isspace(*p)) p++;      while (isspace(*p)) p++;
1779    
1780      q = dbuffer;      bptr = q = dbuffer;
1781      while ((c = *p++) != 0)      while ((c = *p++) != 0)
1782        {        {
1783        int i = 0;        int i = 0;
1784        int n = 0;        int n = 0;
1785    
1786        if (c == '\\') switch ((c = *p++))        if (c == '\\') switch ((c = *p++))
1787          {          {
1788          case 'a': c =    7; break;          case 'a': c =    7; break;
# Line 686  while (!done) Line 1799  while (!done)
1799          c -= '0';          c -= '0';
1800          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')          while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
1801            c = c * 8 + *p++ - '0';            c = c * 8 + *p++ - '0';
1802    
1803    #if !defined NOUTF8
1804            if (use_utf8 && c > 255)
1805              {
1806              unsigned char buff8[8];
1807              int ii, utn;
1808              utn = ord2utf8(c, buff8);
1809              for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1810              c = buff8[ii];   /* Last byte */
1811              }
1812    #endif
1813          break;          break;
1814    
1815          case 'x':          case 'x':
1816    
1817            /* Handle \x{..} specially - new Perl thing for utf8 */
1818    
1819    #if !defined NOUTF8
1820            if (*p == '{')
1821              {
1822              unsigned char *pt = p;
1823              c = 0;
1824              while (isxdigit(*(++pt)))
1825                c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'W');
1826              if (*pt == '}')
1827                {
1828                unsigned char buff8[8];
1829                int ii, utn;
1830                if (use_utf8)
1831                  {
1832                  utn = ord2utf8(c, buff8);
1833                  for (ii = 0; ii < utn - 1; ii++) *q++ = buff8[ii];
1834                  c = buff8[ii];   /* Last byte */
1835                  }
1836                else
1837                 {
1838                 if (c > 255)
1839                   fprintf(outfile, "** Character \\x{%x} is greater than 255 and "
1840                     "UTF-8 mode is not enabled.\n"
1841                     "** Truncation will probably give the wrong result.\n", c);
1842                 }
1843                p = pt + 1;
1844                break;
1845                }
1846              /* Not correct form; fall through */
1847              }
1848    #endif
1849    
1850            /* Ordinary \x */
1851    
1852          c = 0;          c = 0;
1853          while (i++ < 2 && isxdigit(*p))          while (i++ < 2 && isxdigit(*p))
1854            {            {
# Line 697  while (!done) Line 1857  while (!done)
1857            }            }
1858          break;          break;
1859    
1860          case 0:   /* Allows for an empty line */          case 0:   /* \ followed by EOF allows for an empty line */
1861          p--;          p--;
1862          continue;          continue;
1863    
1864            case '>':
1865            while(isdigit(*p)) start_offset = start_offset * 10 + *p++ - '0';
1866            continue;
1867    
1868          case 'A':  /* Option setting */          case 'A':  /* Option setting */
1869          options |= PCRE_ANCHORED;          options |= PCRE_ANCHORED;
1870          continue;          continue;
# Line 709  while (!done) Line 1873  while (!done)
1873          options |= PCRE_NOTBOL;          options |= PCRE_NOTBOL;
1874          continue;          continue;
1875    
1876            case 'C':
1877            if (isdigit(*p))    /* Set copy string */
1878              {
1879              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1880              copystrings |= 1 << n;
1881              }
1882            else if (isalnum(*p))
1883              {
1884              uschar *npp = copynamesptr;
1885              while (isalnum(*p)) *npp++ = *p++;
1886              *npp++ = 0;
1887              *npp = 0;
1888              n = pcre_get_stringnumber(re, (char *)copynamesptr);
1889              if (n < 0)
1890                fprintf(outfile, "no parentheses with name \"%s\"\n", copynamesptr);
1891              copynamesptr = npp;
1892              }
1893            else if (*p == '+')
1894              {
1895              callout_extra = 1;
1896              p++;
1897              }
1898            else if (*p == '-')
1899              {
1900              pcre_callout = NULL;
1901              p++;
1902              }
1903            else if (*p == '!')
1904              {
1905              callout_fail_id = 0;
1906              p++;
1907              while(isdigit(*p))
1908                callout_fail_id = callout_fail_id * 10 + *p++ - '0';
1909              callout_fail_count = 0;
1910              if (*p == '!')
1911                {
1912                p++;
1913                while(isdigit(*p))
1914                  callout_fail_count = callout_fail_count * 10 + *p++ - '0';
1915                }
1916              }
1917            else if (*p == '*')
1918              {
1919              int sign = 1;
1920              callout_data = 0;
1921              if (*(++p) == '-') { sign = -1; p++; }
1922              while(isdigit(*p))
1923                callout_data = callout_data * 10 + *p++ - '0';
1924              callout_data *= sign;
1925              callout_data_set = 1;
1926              }
1927            continue;
1928    
1929    #if !defined NODFA
1930            case 'D':
1931    #if !defined NOPOSIX
1932            if (posix || do_posix)
1933              printf("** Can't use dfa matching in POSIX mode: \\D ignored\n");
1934            else
1935    #endif
1936              use_dfa = 1;
1937            continue;
1938    
1939            case 'F':
1940            options |= PCRE_DFA_SHORTEST;
1941            continue;
1942    #endif
1943    
1944            case 'G':
1945            if (isdigit(*p))
1946              {
1947              while(isdigit(*p)) n = n * 10 + *p++ - '0';
1948              getstrings |= 1 << n;
1949              }
1950            else if (isalnum(*p))
1951              {
1952              uschar *npp = getnamesptr;
1953              while (isalnum(*p)) *npp++ = *p++;
1954              *npp++ = 0;
1955              *npp = 0;
1956              n = pcre_get_stringnumber(re, (char *)getnamesptr);
1957              if (n < 0)
1958                fprintf(outfile, "no parentheses with name \"%s\"\n", getnamesptr);
1959              getnamesptr = npp;
1960              }
1961            continue;
1962    
1963            case 'L':
1964            getlist = 1;
1965            continue;
1966    
1967            case 'M':
1968            find_match_limit = 1;
1969            continue;
1970    
1971            case 'N':
1972            options |= PCRE_NOTEMPTY;
1973            continue;
1974    
1975          case 'O':          case 'O':
1976          while(isdigit(*p)) n = n * 10 + *p++ - '0';          while(isdigit(*p)) n = n * 10 + *p++ - '0';
1977          if (n <= (int)(sizeof(offsets)/sizeof(int))) size_offsets = n;          if (n > size_offsets_max)
1978              {
1979              size_offsets_max = n;
1980              free(offsets);
1981              use_offsets = offsets = (int *)malloc(size_offsets_max * sizeof(int));
1982              if (offsets == NULL)
1983                {
1984                printf("** Failed to get %d bytes of memory for offsets vector\n",
1985                  (int)(size_offsets_max * sizeof(int)));
1986                yield = 1;
1987                goto EXIT;
1988                }
1989              }
1990            use_size_offsets = n;
1991            if (n == 0) use_offsets = NULL;   /* Ensures it can't write to it */
1992            continue;
1993    
1994            case 'P':
1995            options |= PCRE_PARTIAL;
1996            continue;
1997    
1998            case 'Q':
1999            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2000            if (extra == NULL)
2001              {
2002              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2003              extra->flags = 0;
2004              }
2005            extra->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
2006            extra->match_limit_recursion = n;
2007            continue;
2008    
2009            case 'q':
2010            while(isdigit(*p)) n = n * 10 + *p++ - '0';
2011            if (extra == NULL)
2012              {
2013              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2014              extra->flags = 0;
2015              }
2016            extra->flags |= PCRE_EXTRA_MATCH_LIMIT;
2017            extra->match_limit = n;
2018            continue;
2019    
2020    #if !defined NODFA
2021            case 'R':
2022            options |= PCRE_DFA_RESTART;
2023            continue;
2024    #endif
2025    
2026            case 'S':
2027            show_malloc = 1;
2028            continue;
2029    
2030            case 'Y':
2031            options |= PCRE_NO_START_OPTIMIZE;
2032          continue;          continue;
2033    
2034          case 'Z':          case 'Z':
2035          options |= PCRE_NOTEOL;          options |= PCRE_NOTEOL;
2036          continue;          continue;
2037    
2038            case '?':
2039            options |= PCRE_NO_UTF8_CHECK;
2040            continue;
2041    
2042            case '<':
2043              {
2044              int x = check_newline(p, outfile);
2045              if (x == 0) goto NEXT_DATA;
2046              options |= x;
2047              while (*p++ != '>');
2048              }
2049            continue;
2050          }          }
2051        *q++ = c;        *q++ = c;
2052        }        }
2053      *q = 0;      *q = 0;
2054      len = q - dbuffer;      len = q - dbuffer;
2055    
2056        /* Move the data to the end of the buffer so that a read over the end of
2057        the buffer will be seen by valgrind, even if it doesn't cause a crash. If
2058        we are using the POSIX interface, we must include the terminating zero. */
2059    
2060    #if !defined NOPOSIX
2061        if (posix || do_posix)
2062          {
2063          memmove(bptr + buffer_size - len - 1, bptr, len + 1);
2064          bptr += buffer_size - len - 1;
2065          }
2066        else
2067    #endif
2068          {
2069          memmove(bptr + buffer_size - len, bptr, len);
2070          bptr += buffer_size - len;
2071          }
2072    
2073        if ((all_use_dfa || use_dfa) && find_match_limit)
2074          {
2075          printf("**Match limit not relevant for DFA matching: ignored\n");
2076          find_match_limit = 0;
2077          }
2078    
2079      /* Handle matching via the POSIX interface, which does not      /* Handle matching via the POSIX interface, which does not
2080      support timing. */      support timing or playing with the match limit or callout data. */
2081    
2082    #if !defined NOPOSIX
2083      if (posix || do_posix)      if (posix || do_posix)
2084        {        {
2085        int rc;        int rc;
2086        int eflags = 0;        int eflags = 0;
2087        regmatch_t pmatch[30];        regmatch_t *pmatch = NULL;
2088          if (use_size_offsets > 0)
2089            pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * use_size_offsets);
2090        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;        if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
2091        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;        if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
2092          if ((options & PCRE_NOTEMPTY) != 0) eflags |= REG_NOTEMPTY;
2093    
2094        rc = regexec(&preg, (char *)dbuffer, sizeof(pmatch)/sizeof(regmatch_t),        rc = regexec(&preg, (const char *)bptr, use_size_offsets, pmatch, eflags);
         pmatch, eflags);  
2095    
2096        if (rc != 0)        if (rc != 0)
2097          {          {
2098          (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));          (void)regerror(rc, &preg, (char *)buffer, buffer_size);
2099          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);          fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
2100          }          }
2101          else if ((((const pcre *)preg.re_pcre)->options & PCRE_NO_AUTO_CAPTURE)
2102                  != 0)
2103            {
2104            fprintf(outfile, "Matched with REG_NOSUB\n");
2105            }
2106        else        else
2107          {          {
2108          size_t i;          size_t i;
2109          for (i = 0; i < sizeof(pmatch)/sizeof(regmatch_t); i++)          for (i = 0; i < (size_t)use_size_offsets; i++)
2110            {            {
2111            if (pmatch[i].rm_so >= 0)            if (pmatch[i].rm_so >= 0)
2112              {              {
2113              fprintf(outfile, "%2d: ", (int)i);              fprintf(outfile, "%2d: ", (int)i);
2114              pchars(dbuffer + pmatch[i].rm_so,              (void)pchars(dbuffer + pmatch[i].rm_so,
2115                pmatch[i].rm_eo - pmatch[i].rm_so);                pmatch[i].rm_eo - pmatch[i].rm_so, outfile);
2116              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2117                if (i == 0 && do_showrest)
2118                  {
2119                  fprintf(outfile, " 0+ ");
2120                  (void)pchars(dbuffer + pmatch[i].rm_eo, len - pmatch[i].rm_eo,
2121                    outfile);
2122                  fprintf(outfile, "\n");
2123                  }
2124              }              }
2125            }            }
2126          }          }
2127          free(pmatch);
2128        }        }
2129    
2130      /* Handle matching via the native interface */      /* Handle matching via the native interface - repeats for /g and /G */
2131    
2132      else      else
2133    #endif  /* !defined NOPOSIX */
2134    
2135        for (;; gmatched++)    /* Loop for /g or /G */
2136        {        {
2137        if (timeit)        if (timeitm > 0)
2138          {          {
2139          register int i;          register int i;
2140          clock_t time_taken;          clock_t time_taken;
2141          clock_t start_time = clock();          clock_t start_time = clock();
2142          for (i = 0; i < LOOPREPEAT; i++)  
2143            count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,  #if !defined NODFA
2144              size_offsets);          if (all_use_dfa || use_dfa)
2145              {
2146              int workspace[1000];
2147              for (i = 0; i < timeitm; i++)
2148                count = pcre_dfa_exec(re, NULL, (char *)bptr, len, start_offset,
2149                  options | g_notempty, use_offsets, use_size_offsets, workspace,
2150                  sizeof(workspace)/sizeof(int));
2151              }
2152            else
2153    #endif
2154    
2155            for (i = 0; i < timeitm; i++)
2156              count = pcre_exec(re, extra, (char *)bptr, len,
2157                start_offset, options | g_notempty, use_offsets, use_size_offsets);
2158    
2159          time_taken = clock() - start_time;          time_taken = clock() - start_time;
2160          fprintf(outfile, "Execute time %.3f milliseconds\n",          fprintf(outfile, "Execute time %.4f milliseconds\n",
2161            ((double)time_taken * 1000.0)/            (((double)time_taken * 1000.0) / (double)timeitm) /
2162            ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));              (double)CLOCKS_PER_SEC);
2163          }          }
2164    
2165        count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,        /* If find_match_limit is set, we want to do repeated matches with
2166          size_offsets);        varying limits in order to find the minimum value for the match limit and
2167          for the recursion limit. */
2168    
2169          if (find_match_limit)
2170            {
2171            if (extra == NULL)
2172              {
2173              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2174              extra->flags = 0;
2175              }
2176    
2177            (void)check_match_limit(re, extra, bptr, len, start_offset,
2178              options|g_notempty, use_offsets, use_size_offsets,
2179              PCRE_EXTRA_MATCH_LIMIT, &(extra->match_limit),
2180              PCRE_ERROR_MATCHLIMIT, "match()");
2181    
2182            count = check_match_limit(re, extra, bptr, len, start_offset,
2183              options|g_notempty, use_offsets, use_size_offsets,
2184              PCRE_EXTRA_MATCH_LIMIT_RECURSION, &(extra->match_limit_recursion),
2185              PCRE_ERROR_RECURSIONLIMIT, "match() recursion");
2186            }
2187    
2188          /* If callout_data is set, use the interface with additional data */
2189    
2190          else if (callout_data_set)
2191            {
2192            if (extra == NULL)
2193              {
2194              extra = (pcre_extra *)malloc(sizeof(pcre_extra));
2195              extra->flags = 0;
2196              }
2197            extra->flags |= PCRE_EXTRA_CALLOUT_DATA;
2198            extra->callout_data = &callout_data;
2199            count = pcre_exec(re, extra, (char *)bptr, len, start_offset,
2200              options | g_notempty, use_offsets, use_size_offsets);
2201            extra->flags &= ~PCRE_EXTRA_CALLOUT_DATA;
2202            }
2203    
2204          /* The normal case is just to do the match once, with the default
2205          value of match_limit. */
2206    
2207    #if !defined NODFA
2208          else if (all_use_dfa || use_dfa)
2209            {
2210            int workspace[1000];
2211            count = pcre_dfa_exec(re, NULL, (char *)bptr, len, start_offset,
2212              options | g_notempty, use_offsets, use_size_offsets, workspace,
2213              sizeof(workspace)/sizeof(int));
2214            if (count == 0)
2215              {
2216              fprintf(outfile, "Matched, but too many subsidiary matches\n");
2217              count = use_size_offsets/2;
2218              }
2219            }
2220    #endif
2221    
2222        if (count == 0)        else
2223          {          {
2224          fprintf(outfile, "Matched, but too many substrings\n");          count = pcre_exec(re, extra, (char *)bptr, len,
2225          count = size_offsets/3;            start_offset, options | g_notempty, use_offsets, use_size_offsets);
2226            if (count == 0)
2227              {
2228              fprintf(outfile, "Matched, but too many substrings\n");
2229              count = use_size_offsets/3;
2230              }
2231          }          }
2232    
2233          /* Matched */
2234    
2235        if (count >= 0)        if (count >= 0)
2236          {          {
2237          int i;          int i, maxcount;
2238          count *= 2;  
2239          for (i = 0; i < count; i += 2)  #if !defined NODFA
2240            if (all_use_dfa || use_dfa) maxcount = use_size_offsets/2; else
2241    #endif
2242              maxcount = use_size_offsets/3;
2243    
2244            /* This is a check against a lunatic return value. */
2245    
2246            if (count > maxcount)
2247              {
2248              fprintf(outfile,
2249                "** PCRE error: returned count %d is too big for offset size %d\n",
2250                count, use_size_offsets);
2251              count = use_size_offsets/3;
2252              if (do_g || do_G)
2253                {
2254                fprintf(outfile, "** /%c loop abandoned\n", do_g? 'g' : 'G');
2255                do_g = do_G = FALSE;        /* Break g/G loop */
2256                }
2257              }
2258    
2259            for (i = 0; i < count * 2; i += 2)
2260            {            {
2261            if (offsets[i] < 0)            if (use_offsets[i] < 0)
2262              fprintf(outfile, "%2d: <unset>\n", i/2);              fprintf(outfile, "%2d: <unset>\n", i/2);
2263            else            else
2264              {              {
2265              fprintf(outfile, "%2d: ", i/2);              fprintf(outfile, "%2d: ", i/2);
2266              pchars(dbuffer + offsets[i], offsets[i+1] - offsets[i]);              (void)pchars(bptr + use_offsets[i],
2267                  use_offsets[i+1] - use_offsets[i], outfile);
2268              fprintf(outfile, "\n");              fprintf(outfile, "\n");
2269                if (i == 0)
2270                  {
2271                  if (do_showrest)
2272                    {
2273                    fprintf(outfile, " 0+ ");
2274                    (void)pchars(bptr + use_offsets[i+1], len - use_offsets[i+1],
2275                      outfile);
2276                    fprintf(outfile, "\n");
2277                    }
2278                  }
2279                }
2280              }
2281    
2282            for (i = 0; i < 32; i++)
2283              {
2284              if ((copystrings & (1 << i)) != 0)
2285                {
2286                char copybuffer[256];
2287                int rc = pcre_copy_substring((char *)bptr, use_offsets, count,
2288                  i, copybuffer, sizeof(copybuffer));
2289                if (rc < 0)
2290                  fprintf(outfile, "copy substring %d failed %d\n", i, rc);
2291                else
2292                  fprintf(outfile, "%2dC %s (%d)\n", i, copybuffer, rc);
2293                }
2294              }
2295    
2296            for (copynamesptr = copynames;
2297                 *copynamesptr != 0;
2298                 copynamesptr += (int)strlen((char*)copynamesptr) + 1)
2299              {
2300              char copybuffer[256];
2301              int rc = pcre_copy_named_substring(re, (char *)bptr, use_offsets,
2302                count, (char *)copynamesptr, copybuffer, sizeof(copybuffer));
2303              if (rc < 0)
2304                fprintf(outfile, "copy substring %s failed %d\n", copynamesptr, rc);
2305              else
2306                fprintf(outfile, "  C %s (%d) %s\n", copybuffer, rc, copynamesptr);
2307              }
2308    
2309            for (i = 0; i < 32; i++)
2310              {
2311              if ((getstrings & (1 << i)) != 0)
2312                {
2313                const char *substring;
2314                int rc = pcre_get_substring((char *)bptr, use_offsets, count,
2315                  i, &substring);
2316                if (rc < 0)
2317                  fprintf(outfile, "get substring %d failed %d\n", i, rc);
2318                else
2319                  {
2320                  fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
2321                  pcre_free_substring(substring);
2322                  }
2323                }
2324              }
2325    
2326            for (getnamesptr = getnames;
2327                 *getnamesptr != 0;
2328                 getnamesptr += (int)strlen((char*)getnamesptr) + 1)
2329              {
2330              const char *substring;
2331              int rc = pcre_get_named_substring(re, (char *)bptr, use_offsets,
2332                count, (char *)getnamesptr, &substring);
2333              if (rc < 0)
2334                fprintf(outfile, "copy substring %s failed %d\n", getnamesptr, rc);
2335              else
2336                {
2337                fprintf(outfile, "  G %s (%d) %s\n", substring, rc, getnamesptr);
2338                pcre_free_substring(substring);
2339                }
2340              }
2341    
2342            if (getlist)
2343              {
2344              const char **stringlist;
2345              int rc = pcre_get_substring_list((char *)bptr, use_offsets, count,
2346                &stringlist);
2347              if (rc < 0)
2348                fprintf(outfile, "get substring list failed %d\n", rc);
2349              else
2350                {
2351                for (i = 0; i < count; i++)
2352                  fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
2353                if (stringlist[i] != NULL)
2354                  fprintf(outfile, "string list not terminated by NULL\n");
2355                /* free((void *)stringlist); */
2356                pcre_free_substring_list(stringlist);
2357              }              }
2358            }            }
2359          }          }
2360    
2361          /* There was a partial match */
2362    
2363          else if (count == PCRE_ERROR_PARTIAL)
2364            {
2365            fprintf(outfile, "Partial match");
2366    #if !defined NODFA
2367            if ((all_use_dfa || use_dfa) && use_size_offsets > 2)
2368              fprintf(outfile, ": %.*s", use_offsets[1] - use_offsets[0],
2369                bptr + use_offsets[0]);
2370    #endif
2371            fprintf(outfile, "\n");
2372            break;  /* Out of the /g loop */
2373            }
2374    
2375          /* Failed to match. If this is a /g or /G loop and we previously set
2376          g_notempty after a null match, this is not necessarily the end. We want
2377          to advance the start offset, and continue. We won't be at the end of the
2378          string - that was checked before setting g_notempty.
2379    
2380          Complication arises in the case when the newline option is "any" or
2381          "anycrlf". If the previous match was at the end of a line terminated by
2382          CRLF, an advance of one character just passes the \r, whereas we should
2383          prefer the longer newline sequence, as does the code in pcre_exec().
2384          Fudge the offset value to achieve this.
2385    
2386          Otherwise, in the case of UTF-8 matching, the advance must be one
2387          character, not one byte. */
2388    
2389        else        else
2390          {          {
2391          if (count == -1) fprintf(outfile, "No match\n");          if (g_notempty != 0)
2392              {
2393              int onechar = 1;
2394              unsigned int obits = ((real_pcre *)re)->options;
2395              use_offsets[0] = start_offset;
2396              if ((obits & PCRE_NEWLINE_BITS) == 0)
2397                {
2398                int d;
2399                (void)pcre_config(PCRE_CONFIG_NEWLINE, &d);
2400                /* Note that these values are always the ASCII ones, even in
2401                EBCDIC environments. CR = 13, NL = 10. */
2402                obits = (d == 13)? PCRE_NEWLINE_CR :
2403                        (d == 10)? PCRE_NEWLINE_LF :
2404                        (d == (13<<8 | 10))? PCRE_NEWLINE_CRLF :
2405                        (d == -2)? PCRE_NEWLINE_ANYCRLF :
2406                        (d == -1)? PCRE_NEWLINE_ANY : 0;
2407                }
2408              if (((obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANY ||
2409                   (obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANYCRLF)
2410                  &&
2411                  start_offset < len - 1 &&
2412                  bptr[start_offset] == '\r' &&
2413                  bptr[start_offset+1] == '\n')
2414                onechar++;
2415              else if (use_utf8)
2416                {
2417                while (start_offset + onechar < len)
2418                  {
2419                  int tb = bptr[start_offset+onechar];
2420                  if (tb <= 127) break;
2421                  tb &= 0xc0;
2422                  if (tb != 0 && tb != 0xc0) onechar++;
2423                  }
2424                }
2425              use_offsets[1] = start_offset + onechar;
2426              }
2427            else
2428              {
2429              if (count == PCRE_ERROR_NOMATCH)
2430                {
2431                if (gmatched == 0) fprintf(outfile, "No match\n");
2432                }
2433            else fprintf(outfile, "Error %d\n", count);            else fprintf(outfile, "Error %d\n", count);
2434              break;  /* Out of the /g loop */
2435              }
2436          }          }
2437        }  
2438      }        /* If not /g or /G we are done */
2439    
2440          if (!do_g && !do_G) break;
2441    
2442          /* If we have matched an empty string, first check to see if we are at
2443          the end of the subject. If so, the /g loop is over. Otherwise, mimic
2444          what Perl's /g options does. This turns out to be rather cunning. First
2445          we set PCRE_NOTEMPTY and PCRE_ANCHORED and try the match again at the
2446          same point. If this fails (picked up above) we advance to the next
2447          character. */
2448    
2449          g_notempty = 0;
2450    
2451          if (use_offsets[0] == use_offsets[1])
2452            {
2453            if (use_offsets[0] == len) break;
2454            g_notempty = PCRE_NOTEMPTY | PCRE_ANCHORED;
2455            }
2456    
2457          /* For /g, update the start offset, leaving the rest alone */
2458    
2459          if (do_g) start_offset = use_offsets[1];
2460    
2461          /* For /G, update the pointer and length */
2462    
2463          else
2464            {
2465            bptr += use_offsets[1];
2466            len -= use_offsets[1];
2467            }
2468          }  /* End of loop for /g and /G */
2469    
2470        NEXT_DATA: continue;
2471        }    /* End of loop for data lines */
2472    
2473    CONTINUE:    CONTINUE:
2474    
2475    #if !defined NOPOSIX
2476    if (posix || do_posix) regfree(&preg);    if (posix || do_posix) regfree(&preg);
2477    if (re != NULL) free(re);  #endif
2478    if (extra != NULL) free(extra);  
2479      if (re != NULL) new_free(re);
2480      if (extra != NULL) new_free(extra);
2481    if (tables != NULL)    if (tables != NULL)
2482      {      {
2483      free((void *)tables);      new_free((void *)tables);
2484      setlocale(LC_CTYPE, "C");      setlocale(LC_CTYPE, "C");
2485        locale_set = 0;
2486      }      }
2487    }    }
2488    
2489  fprintf(outfile, "\n");  if (infile == stdin) fprintf(outfile, "\n");
2490  return 0;  
2491    EXIT:
2492    
2493    if (infile != NULL && infile != stdin) fclose(infile);
2494    if (outfile != NULL && outfile != stdout) fclose(outfile);
2495    
2496    free(buffer);
2497    free(dbuffer);
2498    free(pbuffer);
2499    free(offsets);
2500    
2501    return yield;
2502  }  }
2503    
2504  /* End */  /* End of pcretest.c */

Legend:
Removed from v.27  
changed lines
  Added in v.412

webmaster@exim.org
ViewVC Help
Powered by ViewVC 1.1.12